Jaap's Mechanical Calculators Page

Brunsviga

Brunsviga Nova II Brunsviga D 13Z/1 Brunsviga 13RK Brunsviga 10 Brunsviga 11E Brunsviga 11S Brunsviga 90 TA Brunsviga Adsum 94T



Brunsviga and the Pinwheel calculator
Brunsviga Nova II
   Video
Brunsviga D 13Z/1
   Video
Brunsviga RK
Brunsviga 10
   History of the Brunsviga 10
   Video
Brunsviga 11E
   Video
Brunsviga 11S
   Video
Brunsviga 90 TA
Brunsviga Adsum 94 T
   Using the Brunsviga 90 T/TA
   History of the Brunsviga 90 T/TA
   Video
Serial Numbers
Manuals
Promotional material
Advertisements
Articles
Patents
Links

Brunsviga and the Pinwheel calculator

The pinwheel calculator as we know it was invented by Willgodt Theophil Odhner in around 1871. He was Swedish, but was working in Russia at the time for Ludvig Nobel, an oil magnate. Pinwheels had been used before in various forms, but never in large numbers because the precise engineering needed for manufacturing it is difficult. At almost the same time as Odhner in Russia, Frank Baldwin in the USA developed his own pinwheel calculator, but had difficulty selling it. Odhner made a few machines for Nobel, but it wasn't until 1890 that he had an improved design that was easier to make, and had set up a workshop in St. Petersburg to start producing them. The next year he also opened a production plant in Germany, but soon found it too difficult to oversee two such widely separated locations, and in 1892 the German plant was sold to Grimme, Natalis & Co, together with all its equipment, designs and patent licenses to manufacture the Odhner calculator for the German, Belgian and Swiss market.

The company Grimme, Natalis & Co was set up in November 1871 by Carl Grimme and Kaufmann A. Natalis. They were both sewing machine manufacturers who had decided to join forces. They also made other metal household apparatus, like ovens and heaters. In 1892 they began making pinwheel calculators in their plant in Braunschweig (Brunswick) using the brand name Brunsviga, which is the latin name for the town. Their first models, models A and B, were exact copies of the Odhner design, but with different numbers of digits. Soon their main engineer and co-director Franz Trinks devised several improvements (such as safety interlocks) and new designs. It took many years for the market for calculators to develop, but through extensive advertising using the slogan "Gehirn von Stahl" (Brains of Steel), demand grew. Eventually the demand for calculators even began to outgrow that of sewing machines.

While Brunsviga was the first Odhner clone, others would follow, especially after Odhner's patents expired. For example Triumphator, Thales, Walther, Facit, Felix, Tiger, and many others. Willgodt Odhner died in 1905, and his sons took over the company. In the Russian revolution the Odhner company was confiscated, so the Odhner brothers returned to Sweden and started anew with the Original-Odhner company. In Russia the confiscated assets were used to produce the Felix brand of pinwheel calculators.

Meanwhile in Germany, Grimme Natalis & Co released a new series of models in 1925, the "Nova" series, which shared many interchangable parts for ease of production and repair. In 1927 the company incorporated the brand name into its company name, changing it to "Brunsviga-Maschinenwerke Grimme, Natalis & Co ", because by then it was producing calculators almost exclusively.

Competition between calculator companies was fierce, and in 1957 Brunsviga was bought by Olympia, a company that spun off from AEG and which made mostly typewriters but had also started making adding-listing machines. So from then on Brunsviga was once again merely a brand name. By 1959 the merger was complete, and all but a few Brunsviga models were discontinued. By 1964 the only mechanical calculator model they still produced was the Olympia-Brunsviga 13 RM, and in 1970 the last plant that still produced this machine, located in Spain, stopped too.


Brunsviga Nova II

The "Nova" series of models is the culmination of almost all of Franz Trink's developments. The Nova II was the most popular, and a little over 10,000 Nova II machines were produced from 1925 till 1934. The Nova I had fewer digits, and the Nova III had an extra revolution counter without a carry mechanism. Franz Trinks retired soon after this, and the Brunsviga pinwheel machines remained essentially unchanged until the 1950s. It has many clever features:

One of the few innovations not used in the Nova are longer stationary input pins. Some earlier models had input pins that did not rotate with the pinwheels when the crank was turned, which allowed them to be longer and more comfortable to use. This mechanism must have been considered too expensive or complicated to continue with.

My machine has serial number 6T 2O 864. Note that is the letter O. The first thousand had the numbers 6T 2N xxx, the next thousand 6T 2O xxx, then 6T 2P xxx, after which they switched to a fully numerical format of 103,000 onwards.

Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II


The paint on the top cover is crackled, and flaking off quite badly. Mechanically it is in reasonable condition. It mostly works fine, if a little stiffly, except that clearing the input sometimes leaves one of the digits set to 1. The back transfer also sometimes doesn't quite fully push the input pins to the correct position.

Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II
Brunsviga Nova II



Video

Below is a video I made that demonstrates the Brunsviga Nova II.




Brunsviga D 13Z/1

The model D 13Z/1 consists of two calculators attached side by side, sharing the same drive shaft. The D in the model name stands for Doppel, i.e. double. The individual calculators are model 13Z, so have 13 digits in the register and tens carry (Zehner-Übertrag) in the counter register. The final /1 means that only one of the machines has a counter mechanism.

Such double calculators were used for calculations involving coordinates, often by the military, but also by land surveyors, for example. One calculator would hold the x-coordinate, the other the y-coordinate. There is a switch between the two calculators with which you can set them to move in the same direction (both adding or both subtracting) or the opposite direction (one adding the other subtracting), or disconnect them (so only the right machine turns).

The carriages of the two machines are connected, but still have separate clearing levers. It is possible to manually set the value of these registers by turning the rubber wheels at the front. The lever on the front-left of each carriage disconnects the register from the rest of the mechanism to make the number wheels easier to set.

The lever on the left of the machine clears both input registers. The lever on the right clears the counter, or clears both the counter and the input registers, depending on whether the switch on the right is set to 1 or 2.

Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1


The serial number is 208,664, which probably dates it to near the end of the second world war, about 1945. This model was in production from 1934 until 1947.

Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1
Brunsviga D 13Z/1


Geodätisches Rechnen Anleitung für die Brunsviga-Rechenmaschine Doppel 13Z     (PDF, 47.1 MB or archive.org)
K. Schieferdecker
Brunsviga Maschinenwerke AG., Braunschweig
1950
48 page book
212mm × 294mm × 5mm

This book serves as the manual for the Brunsviga D 13Z, and it explains in detail all kinds of coordinate calculations that can be done. The main text is 38 pages, and it then has 10 foldout pages with templates for noting down results of the example calculations in the main text.

Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen
Geodaetisches Rechnen



Video

Below is a video I made that demonstrates the Brunsviga D 13Z/1.




Brunsviga 13RK

The model 13RK is the most common post-war Brunsviga pinwheel calculator model. It is obviously a direct descendant of the Nova II above as it has a almost the same size and shape, and very similar functionality. It also has a 13-digit register, 10-digit input, and an 8-digit counter in the body of the machine which automatically switches to negative numbers. Some of the differences are:

Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK


The serial number is 266,988, which dates it 1952. This model was in production from 1949 until about 1959. Later versions of this model generally had a metallic silver colour with dark red handles and decimal indicators.

Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK
Brunsviga 13RK



Brunsviga 10

Unlike all other calculators that Brunsviga developed, the Brunsviga 10 has a stepped drum mechanism. It is relatively light and compact, and was apparently cheaper to manufacture. It has a smaller capacity, so it was clearly aimed at the low end of the market. It was made from 1932 until about 1952, with a break during the Second World War. The serial number on my machine is 160,469, which dates it to around 1938.

The case is painted black, like all Brunsviga's of the time. It has a stand that folds out and lifts up the rear of the machine, tilting it towards the user. The stand is released and locked in place by a small metal catch on either side near the bottom.

There is a crank on the right hand side, angled forwards towards the operator and slightly upwards to compensate for the tilt when the stand is used. The crank can be turned clockwise for addition, and anti-clockwise for subtraction.

The 10-digit register sits in a carriage that is in the middle of the machine. On the right there is a clearing handle. Shifting the carriage to the right is done simply by pulling it rightwards using the fixed knob on top. It is springloaded, and pressing the metal lever near the crank shifts the carriage leftwards by one digit. There is an identical left-shift lever on the left side of the machine as well. There is a stationary metal plate covering the left end of the carriage which keeps the mechanism enclosed even when the carriage is at its furthest point. When the register overflows or underflows, a bell is struck.

At the back is a 5-digit counter. It has the same kind of mechanism as the Nova series. On the left is a clearing handle. When it is clear, a green indicator is visible to the left of the counter. In this state the direction of the next turn of the crank determines whether the counter keeps track of additions or of subtractions. If the crank is turned anti-clockwise for subtraction, the windows of the counter shift to the left, revealing a set of red complementary digits, and the counter is adjusted to show the that one subtraction has been performed. Below the counter is an indicator showing the currently active digit corresponding to the location of the carriage.

At the front of the machine is the input register. It has 6 movable pins, each in a slot with the digits 0 to 9 next to them. There is a row of windows which display the current input number directly, making it easier to check it is correct. Unlike most pinwheel machines, the input pins remain stationary when the crank is turned. At the front right is a button which clears the input.

Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10


The Brunsviga 10 uses a stepped drum mechanism. Like the drums of the Monroe calculator they are split into two parts, but unlike the Monroe they are actually arranged on two axles. One axle contains drums that can move the number wheels anything from 0 to 4 steps, depending on how much they have been shifted. The other axle contains the carry mechanism and another set of drums that turn the number wheels either 0 or 5 steps. The two axles move in concert and the drums for each wheel are arranged so that they act one after the other.

The input pins are part of large input wheels, and these wheels have a cam profile on either side. These profiles push aside levers by an exact amount depending on the input setting, and those levers are connected through shafts to similar levers that push aside the stepped drums the correct amount.

Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10
Brunsviga 10



History of the Brunsviga 10

It was developed by Richard Haase who was working for Grimme Natalis, and patented by him in 1932. There have been some small changes in the design of the Brunsviga 10 during its production run. Until about 1935 they did not have the cover over the left part of the register, so the mechanism was exposed when the carriage was shifted. Almost 10,000 were made before the last years of the war interrupted production. When production restarted a few years after the war, they were slightly updated by being painted green instead of black, and they had no input clearing button, and no extra carriage shift lever on the left side.

The serial numbers used on the Brunsviga 10 were not a single consecutive set. The numbering was shared between all models, and in 1932 when this model started production they were at about 136,000, and in 1943 when production was paused they were at about 192,000. I presume number ranges of size 500 or 1000 were assigned to each model, with a new range assigned whenever the previous was used up. This means that the serial numbers give a good estimate of the total number of machines that Brunsviga produced, but they say little about any particular model. There may also be large gaps in the serial numbers which were used by other more popular models. When production restarted a few years after WW2 the serial numbers were about 230,000, and when it ended in 1952 the numbers were about 248,000.

In 1952 it was redesigned and this version was first named the B10 and then renamed the Nova 10. It had a more rounded green case, and internally the mechanism was changed to put all the stepped drums on a single axle. At the same time an electrically driven version was made which had one digit more capacity on all the registers, and it was called the model 11E. A few years later the model 11S was made too, which was a version of the electric model 11E with a full-sized keyboard.


Videos

Here is a video where I demonstrate the Brunsviga 10.

Here is a video showing the mechanism of the Brunsviga 10.




Brunsviga 11E

The Brunsviga 11E is a further development of the Brunsviga 10. It was made from about 1952 until at least 1959. The serial number on my machine is 11-16,672, which dates it to 1957.

The case is painted a metallic silvery gold and it has red keys. It has an 11-digit register to match its increased model number. The counter has 6 digits, and there are 7 digits of input set using a set of input pins. It is electrically driven, using the motor to perform the addition or subtraction, as well as to clear the register or counter. Shifting the carriage to the right is still manual however, though it moves left by a spring. There is a latch on the right hand side of the carriage that locks the carriage in place for transport.

The counter has the same mechanism as the Nova series for counting positive numbers in white, negative numbers in red, with the choice depending on the first operation after clearing the counter. There is a red underline marker under the current digit of the counter, where the current digit depends on the location of the carriage.

At the front-right of the machine is the input register. It has 7 movable pins, each in a slot with the digits 0 to 9 next to them. There is a row of windows which display the current input number directly, making it easier to check it is correct. Unlike most pinwheel machines, the input pins remain stationary when the crank is turned. At the front left are the various control buttons. The buttons marked I, II, and III will clear the input, counter, and register respectively. The left-arrow button shifts the carriage to the left, and the + and - buttons perform an addition or subtraction.

The selection switch next to the buttons has three options:

Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E


The Brunsviga 11E has a similar stepped drum mechanism as the Brunsviga 10, so see above for a more in depth description. It has a small electric motor at the back that is connected to the mechanism through a drive belt. There is no reversing gear, but for subtraction the polarity is switched so that the motor drives in reverse.

Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E
Brunsviga 11E



Video

Here is a video where I demonstrate the Brunsviga 11E.




Brunsviga 11S

The Brunsviga 11S is somewhat similar to the 11E except it has a keyboard for inputting numbers. It was made from about 1957, but seems not to have been in production for very long, almost certainly no longer than until 1959. The serial number on my machine is 10-01290, which dates it to 1957.

The case of this machine is the same metallic silvery gold as the 11E, but with grey buttons on its keyboard which contrast against a dark red keyboard plate. It has an 11-digit register, a 6-digit counter, and there are 7 columns on its keyboard. It is electrically driven, using the motor to perform the calculations, as well as to clear the register or counter, and to shift the carriage to the right. Shifting the carriage to the left is done by a spring, and clearing the keyboard also does not need the motor.

To the left of the keyboard are the controls. The buttons marked I, II, and III will clear the input, counter, and register respectively. The arrow buttons shift the carriage, and the + and - buttons perform an addition or subtraction. There is a second + button to the right of the keyboard which is easier to reach.

The selection switch above the control buttons has three options:

Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S


The Brunsviga 11S, like the 11E, has a similar stepped drum mechanism to the Brunsviga 10, so see above for a more in depth description. It has a small electric motor at the back that is connected to the mechanism through a drive belt. There is no reversing gear, but for subtraction the motor is driven in reverse.

Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S
Brunsviga 11S



Video

Here is a video where I demonstrate the Brunsviga 11S.



In this video I show the machine running with the case removed.




Brunsviga 90 TA

The Brunsviga 90 TA is full keyboard adding machine. The keyboard has 8 columns of keys, where each column has nine keys numbered from 1 to 9. Below the keyboard is an 8-digit input register which shows the number entered on the keys. There is a more common, cheaper version called the 90 T which does not have the input display register. Above the keyboard is a 9-digit results register. The register has a sliding window to allow negative numbers to be displayed through the use of complementary digits.
Attached to the right side of the machine is a large lever which is pushed down and released to perform any one of the three operations adding, subtracting or clearing the register. There are four control keys at the right of the keyboard. The usage of these keys is explained below.

It has serial number 22-05788, dating it to 1957.

Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA


The mechanism uses toothed racks. Pushing the lever downwards lifts the register up away from a set of toothed racks, and these racks are pulled forward. They move until they hit a blockage determined by the input key settings. When the lever is released, the register descends onto the racks, and the racks are returned to their original position, turning the register's number wheels in the process. Switching between addition and subtraction is done by shifting the whole register sideways, which connects the number wheels to the racks without the use of an intermediate wheel, making them turn in the opposite direction.

Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA
Brunsviga 90 TA



Brunsviga Adsum 94 T

The Brunsviga Adsum 94 T is a version of the Brunsviga 90 T which is specially adapted for calculations involving British currency. The keyboard still has 8 columns of keys. The right-most column is for pence, of which there are 12 to a shilling, so the column has eleven keys numbered from 1 to 11. The next two columns are for shillings. There are 20 shillings to a pound, so the right column of the pair is a normal decimal column with nine keys numbered 1 to 9 and the left column has nine keys all with the number 1. The remaining five columns are normal columns with keys 1 to 9.

Above the keyboard is a results register with 9 number wheels. The last wheel counts up to 11. The register has a sliding window to allow negative numbers to be displayed through the use of complementary numbers.
The other controls are identical to those of the Brunsviga 90 TA, so there are four buttons on the right of the keyboard and a large lever for performing an operation. The usage of these keys is explained below.

This machine has serial number 22-05389, dating it to 1957.

Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T


The mechanism is almost identical to that of the Brunsviga 90 T. The third number wheel shows the numbers 0 and 1 five times, so as it goes through a full rotation it will carry to the fourth wheel five times instead of just once.

Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T
Brunsviga Adsum 94T



Using the Brunsviga 90 T/TA

Entering a number: Enter the number on the keyboard, pressing one key in each column that has a non-zero digit. For example, to enter 104, press the 4 key in the rightmost column and the 1 key in the third column from the right. You can clear the entered number by pressing C.
Addition: Enter the number to add on the keyboard. Press down and release the lever.
Subtraction: Enter the number to subtract on the keyboard, and also press the minus button. Press down and release the lever.
Negative Results: If the register underflows because the result is a negative number, then shift the register's sliding window to the left. The register now displays the complementary digits with a green background. If the last number wheel is not a zero, then the displayed number is the correct negative result. If the last number wheel shows zero, which is shown with a red dot in its centre, that zero should really be thought of as a ten (or as 12 pence on the Adsum 94T). To get the actual negative number, that ten should be mentally carried over to the tens digit. For example, if the register displays in green the number 699 then it means -699, but if it displays a green number 690, then it really means the number -700.
Clear register: Press the * button, then press down and release the lever.
IMPORTANT NOTE: If the last operation was a subtraction, then the * button cannot be pressed down. If this happens, then push and release the lever (effectively adding a zero). You can then clear the register normally.
Repeated addition: Enter the number and press the R button. Repeatedly push the lever as many times as you want to add the number. Press the C key to clear the input.
Repeated subtraction is possible, but you have to press the minus and the R buttons simultaneously to get them to stay pushed in.

History of the Brunsviga 90 T/TA

This machine was not actually developed by Brunsviga but originally produced by Komet. The company Komet Rechenmaschinen GmbH was founded on June 1951 by Hugo Schumann in Frankfurt, and produced four calculator models. These machines were probably all manufactured in the machine workshop run by Siegfried Link in Griesheim, near Darmstadt. The first model in production was the Komet SK. It was a licensed copy of the Resulta BS7 (except that it had 8 digits) and was their cheapest and most successful model. Similarly, the Komet R8 was a copy of the Resulta AS7. The third model was the Komet TA 8/9, designed by Siegried Link. It came to market in 1953. The last model was the Komet DM 10, which was a large calculator with a full keyboard and a carriage, somewhat similar to a Monroe.

The Komet company went bankrupt in November 1955, less than four and a half years after it was founded. It is probable that the development and production of model DM 10 was too expensive and ambitious for this small young company. About 16,000 model SK were sold, about 1,000 of the model TA 8/9, but it is unclear whether the model DM 10 even reached the market as hardly any machines of this model exist. Brunsviga bought all rights to the model TA 8/9, and all remaining stock was rebadged and sold as the Brunsviga Jedermann. They continued production of the model which was dubbed the Brunsviga 90 TA, and also the variant without the input register display called the Brunsviga 90 T.

The Brunsviga 90 TA and its variants were at first still manufactured in Siegfried Link's factory where its predecessor, the Komet TA 8/9 was made. Brunsviga did however set up production in their own factories, and by the end of May 1957 the transfer was complete so that Link's production line ended. These machines were made until about 1958 or 1959, when production of this and many other Brunsviga models was halted. Note that Siegfried Link survived this setback, restarting production of the Komet SK, now renamed the Link SK. His new company also managed to diversify into making parts for other industries, for example for cars and bicycles.

Here is a table of the variants of this machine that I am aware of. I have not found any Adsum variant with an input display.

ModelDescription
Komet TA 8/9Decimal; With or without input display
Brunsviga 90 TADecimal; With input display
Brunsviga 90 TDecimal; Without input display
Brunsviga Adsum 94 TBritish currency (£sd); Without input display
Brunsviga Adsum 948 TBritish currency (£sdf); Without input display

Video

Below is a video I made that demonstrates the Brunsviga 90 TA.




Serial Numbers

I found some tables of serial numbers in scans on Rechner Lexicon, and I'll reproduce that data here. It goes from 1940 to 1957. Up to 1953 the numbering was consecutive and shared by all the calculator models. There was a separate series of serial numbers for all the adding machine models.

All calculator models
YearNumbers
1892-1940000,001-188,000
1941-1945188,001-211,500
1946-1949211,501-231,940
1950 231,941-242,585
1951 242,586-257,521
1952 257,522-271,579
1953 271,580-288,147
All adding Machine models (AS, 800, 810, 900, 910, 89)
YearNumbers
194802,800-03,276
194903,277-04,899
195004,900-08,797
195108,798-17,800
195217,801-30,050
195330,051-38,999
195439,900-45,000

From 1954, each model has its own numbering consisting of a model prefix that is unique to that model (or set of closely related models) followed by a serial number.

Pinwheel models
Prefix12-13-14-15-16-
YearMod B20Mod 13RK/18RKMod D13Mod 16TMod 16E
195427,001-27,59030,030-36,21505,000-05,037 01,001-01,059
195527,591-28,99536,216-47,01405,036-05,21801,001-01,35801,060-01,176
195628,996-30,14947,015-55,87505,219-05,44001,359-03,95902,001-02,070
195730,150-30,92755,876-63,71005,441-05,65403,960-05,09102,071-02,970

Stepped drum models
Prefix10-11-
YearMod 11SMod 11E
1954 06,000-07,514
1955 07,515-09,971
1956 09,972-14,560
195701,200-01,42814,561-17,660

Adding machines
Prefix21-31-32-
YearMod 1000Mod 89Mod 111, 1010
195414001-1406322001-2880009001-10244
195514064-1425128801-3855110245-12243
195614252-1432038552-4752012244-15018
195714321-1442147521-5240015019-18000

Models 90T/TA, Adsum 94T, etc.
Prefix22-
Year
195501,001-01,009
195601,010-03,489
195703,490-06,240
Note that Siegfried Link produced them too, with 5-digit serial numbers until July 1956, and then numbers 23-02,001 to 23-03,805 until May 1957.

Manuals

Instructions for using the "Brunsviga" calculating machine    (PDF, 9.25 MB or archive.org)
Grimme, Natalis & Co., Brunswick, Germany
1905
12-page stapled booklet
139mm × 213mm × 1mm

This is a manual for the earliest Brunsviga machines. The cover shows the model A, and the picture on the first page shows the model B with a wide body which was only produced in 1905 and 1906. The manual has only very brief explanations of the four arithmetic operations.

Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine
Instructions for using the Brunsviga calculating machine

General Instruction Book for the Brunsviga Universal Calculating Machine    (PDF, 56.7 MB or archive.org)
Brunsviga Calculator Co., 4 St. Paul's Churchyard, London E.C.4.
1922
41-page booklet
146mm × 224mm × 2mm

This is the basic manual for the early Brunsviga machines, in particular the models B, MH, MJR, and MDIIR. It explains the four arithmetic operations of course, but also covers various special methods and short cuts, as well as British currency. The booklet has no copyright date, but the code on the front suggests it was printed in 1922.

General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine
General Instruction Book for the Brunsviga Universal Calculating Machine

Brunsviga 13 R    (PDF, 13.9 MB or archive.org)
Die leichtverständliche Schule für den Umgang und das Rechnen mit der BRUNSVIGA 13 R
Brunsviga Maschinenwerke AG., Braunschweig
1950
37-page booklet
211mm × 146mm × 3mm

This is the basic manual for the Brunsviga 13 R in German. It explains the four arithmetic operations of course, but also covers various applications and methods including percentage calculations and interest. There is even a section on taking square roots. There are various tables for interest calculations and for imperial weights. At the back an extra page has been pasted in which explains that the Brunsviga 13 RK has an extra switch with which you can select which registers to clear. The booklet has a copyright date of 1950.

German Brunsviga 13 R manual
German Brunsviga 13 R manual
German Brunsviga 13 R manual
German Brunsviga 13 R manual
German Brunsviga 13 R manual
German Brunsviga 13 R manual

The manual also came with a loose page in 6 languages that explains how to release the carriage after it has been locked for safety during transport.

Unlocking the Brunsviga 13 R
Unlocking the Brunsviga 13 R
Unlocking the Brunsviga 13 R
Unlocking the Brunsviga 13 R

Brunsviga 13 R    (PDF, 17.5 MB or archive.org)
Brunsviga Maschinenwerke AG., Braunschweig
1950
39-page booklet
211mm × 146mm × 3mm

This is the basic manual for the Brunsviga 13 R in French. It is virtually identical to the German version above.

French Brunsviga 13 R manual
French Brunsviga 13 R manual
French Brunsviga 13 R manual
French Brunsviga 13 R manual
French Brunsviga 13 R manual

Brunsviga 13 RK
Brunsviga Maschinenwerke AG., Braunschweig
1954
36-page booklet
211mm × 146mm × 3mm

This is the basic manual for the Brunsviga 13 RK in German. The text is identical to that of the manual above for the model 13 R except that the added page for model 13 RK has been incorporated into the main text, and the large fold-out diagram now depicts the new model. The booklet has a copyright date of 1954.

German Brunsviga 13 RK manual
German Brunsviga 13 RK manual
German Brunsviga 13 RK manual
German Brunsviga 13 RK manual
German Brunsviga 13 RK manual


Promotional material

Calendar Coin
1908

This is a coin or medal made of a light metal, possibly a zinc alloy. One side bears the image of a Brunsviga pinwheel calculator, with the text "Grimme Natalis & Co., Brunsviga, Braunschweig".
The other side has a perpetual calendar for the years 1908 to 1928. A thin plate covers most of this side of the coin except for two windows. When you rotate the coin so that the year in the top window lines up with the month on the front plate, the other window shows the correct days of the week for the calendar for that month and year.
It has some instructions in German: "Man setze gewuenschten Monat unter Jahr. Unterstrichene Jan & Feb dienen nur fuer Schaltjahre."

calendar1
calendar2

Die Braunschweiger GNC Monatsschrift
Grimme, Natalis & Co.
December 1913
103 page booklet
170mm × 232mm × 5mm

This was a monthly publication by Grimme Natalis, which mostly had articles on subjects related to the history and culture of the Brunswick region.
This issue is about the town of Wolfenbüttel, its history, music, its famous library, and its poets. At the back are several pages of advertisements, mostly from companies from Wolfenbüttel, as well as for the Brunsviga of course.

Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift
Die Braunschweiger GNC Monatsschrift

Geschichtliche Daten aus der Entwicklung der Rechenmaschine von Pascal bis zur Nova-Brunsviga    (PDF, 26.3 MB or archive.org)
Dr. Ing. eh. Franz Trinks
1926
40-page booklet
170mm × 230mm × 2mm

This German booklet gives a short history of the development of mechanical calculators, ending with a description of the full range of Brunsviga-Nova calculators that were available. It was written by Franz Trinks, who was the main engineer who designed the Nova series. A year after its publication in 1926 it was reproduced in the Grimme-Natalis company magazine, Braunschweiger GNC-Monatsschrift #14.

Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine
Geschichtliche Daten aus der Entwicklung der Rechenmaschine

Différents Modèles Nova-Brunsviga
1925
4-page leaflet
212mm × 281mm

This French leaflet has pictures of the models Nova I, Nova IVa, Nova 13, and Nova Duplex, and also briefly describes the Nova II and Nova IV.


Nova II-IV9
December 1929
Trifold leaflet
148mm × 210mm

This French leaflet shows and describes the models Nova II and Nova IVa. The models Nova III and Nova IV are briefly mentioned.


Nova 13-13Z
March 1930
Trifold leaflet
148mm × 210mm

This French leaflet shows and describes the models Nova 13, Nova 13Z, Nova 13ZG, and Nova 13ZK, where the latter two are on an additional page pasted in the middle. Also listed are the Nova II, Nova III, Nova IV, Nova IVa, and Dupla.



Tabelle der reziproken Werte von 1-1000 für BRUNSVIGA-Rechenmaschinen und BRUNSVIGA-Addiermaschinen
May 1956
Trifold leaflet
98mm × 210mm

This is a table of reciprocals from 1/1 to 1/1000. The front has pictures of the models 11 E, G 111 E, and 13 RK.

Tabelle der reziproken Werte von 1-1000
Tabelle der reziproken Werte von 1-1000
Tabelle der reziproken Werte von 1-1000
Tabelle der reziproken Werte von 1-1000
Tabelle der reziproken Werte von 1-1000


Advertisements

Here are a various advertisements relating to Grimme Natalis & Co, their Brunsviga calculators, and to Olympia.

1883-08-01 journal of domestic appliances
1885-10-01 journal of domestic appliances
1889-01-22 Export
1889-12-02 journal of domestic appliances
1893-12-11 Glasgow Herald (UK)
1894-01 Stahl und Eisen
1896-02-10 Het nieuws van de dag
1897-11-14 Algemeen Handelsblad
1901-02-16 scientific american
1903-10-20 Provinciale Noordbrabantsche en 's Hertogenbossche courant
1903-10-23 Provinciale Noordbrabantsche en 's Hertogenbossche courant
1904-04-16 Die Woche
1904-05-14 Die Woche
1905-09-24 The Washington Post (Washington DC)
1906-11-24 Journal fur die reine und angewandte Mathematik
1909-03-17 The Guardian (UK)
1909-03-24 The Guardian (UK)
1909-05-25 De Tijd
1909-09-06 De Telegraaf
1909-11-10 Algemeen Handelsblad
1910 The Fixing Of Rates and Fares
1911 Der Bautechniker
1911-02-21 The Guardian (UK)
1911-02-28 The Guardian (UK)
1911-03-03 The Guardian (UK)
1911-03-07 The Guardian (UK)
1911-03-14 The Guardian (UK)
1911-03-17 The Guardian (UK)
1911-03-28 The Guardian (UK)
1911-03-31 The Guardian (UK)
1911-04-04 The Guardian (UK)
1911-04-07 The Guardian (UK)
1911-04-11 The Guardian (UK)
1911-04-18 The Guardian (UK)
1911-04-21 The Guardian (UK)
1911-04-25 The Guardian (UK)
1911-04-28 The Guardian (UK)
1911-05-02 Liverpool Journal of Commerce (UK)
1911-05-02 The Guardian (UK)
1911-05-05 The Guardian (UK)
1911-05-12 The Guardian (UK)
1911-05-16 The Guardian (UK)
1911-05-19 The Guardian (UK)
1911-05-23 The Guardian (UK)
1911-05-26 The Guardian (UK)
1911-05-30 The Guardian (UK)
1911-06-09 The Guardian (UK)
1911-06-27 The Guardian (UK)
1911-07-05 The Times (London UK)
1911-07-30 The Guardian (UK)
1911-09-19 The Guardian (UK)
1911-09-21 Sheffield Daily Telegraph
1911-09-22 The Guardian (UK)
1911-09-26 The Guardian (UK)
1911-09-29 The Guardian (UK)
1911-10-03 The Guardian (UK)
1911-10-06 The Guardian (UK)
1911-10-11 The Guardian (UK)
1911-10-13 The Guardian (UK)
1911-10-19 Westminster Gazette
1911-10-20 The Guardian (UK)
1911-10-25 The Guardian (UK)
1911-10-27 The Guardian (UK)
1911-11-03 The Guardian (UK)
1911-11-07 The Guardian (UK)
1911-11-10 The Guardian (UK)
1911-11-14 The Guardian (UK)
1911-11-17 The Guardian (UK)
1911-11-24 The Guardian (UK)
1911-11-29 The Guardian (UK)
1911-12-01 The Guardian (UK)
1911-12-06 The Guardian (UK)
1911-12-08 The Guardian (UK)
1911-12-13 The Guardian (UK)
1911-12-19 The Guardian (UK)
1912-01-02 The Guardian (UK) 1
1912-01-02 The Guardian (UK) 2
1912-01-05 The Guardian (UK)
1912-01-09 The Guardian (UK)
1912-01-12 The Guardian (UK)
1912-01-16 The Guardian (UK)
1912-01-17 The Times (London UK)
1912-01-19 The Guardian (UK)
1912-01-23 The Guardian (UK)
1912-01-26 The Guardian (UK)
1912-01-30 The Guardian (UK)
1912-02-02 The Guardian (UK)
1912-02-06 The Guardian (UK)
1912-02-09 The Guardian (UK)
1912-02-13 The Guardian (UK)
1912-02-16 The Guardian (UK)
1912-02-20 The Guardian (UK)
1912-02-23 The Guardian (UK)
1912-02-27 The Guardian (UK)
1912-03-01 The Guardian (UK)
1912-03-05 The Guardian (UK)
1912-03-08 The Guardian (UK)
1912-03-12 The Guardian (UK)
1912-03-15 The Guardian (UK)
1912-03-19 The Guardian (UK)
1912-03-22 The Guardian (UK)
1912-03-26 The Guardian (UK)
1912-03-30 The Guardian (UK)
1912-04-02 The Guardian (UK)
1912-04-16 The Guardian (UK)
1912-04-17 The Guardian (UK)
1912-04-19 The Guardian (UK)
1912-04-23 The Guardian (UK)
1912-04-30 The Guardian (UK)
1912-05-07 The Guardian (UK)
1912-05-14 The Guardian (UK)
1912-05-21 The Guardian (UK)
1912-07-02 The Guardian (UK)
1912-07-04 The Guardian (UK)
1912-07-09 The Guardian (UK)
1912-07-11 The Guardian (UK)
1912-07-16 The Guardian (UK)
1912-07-18 The Guardian (UK)
1912-07-25 The Guardian (UK)
1912-07-30 The Guardian (UK)
1912-08-06 The Guardian (UK)
1912-09-13 The Guardian (UK)
1912-09-17 The Guardian (UK)
1912-09-20 The Guardian (UK)
1912-09-27 The Guardian (UK)
1912-10-11 The Guardian (UK)
1912-11-01 The Guardian (UK)
1912-11-04 The Guardian (UK)
1912-11-29 The Guardian (UK)
1912-12-03 The Guardian (UK)
1913-07-01 The Guardian (UK)
1913-07-04 The Guardian (UK)
1913-07-11 The Guardian (UK)
1913-07-15 The Guardian (UK)
1913-07-22 The Guardian (UK)
1914-04-08 Tammerfors Nyheter
1915-04 Zeitschrift fur Mathematik und Physik
1916-07-05 Nieuwe Rotterdamsche Courant
1919-09-13 Svenska Tidningen
1921-03-17 De Preanger-bode
1921-04-01 De Maasbode
1921-06-03 Algemeen Handelsblad
1922-06-13 Algemeen Handelsblad
1922-10-05 Uusi Suomi
1924-05-03 Chicago Tribune (Illinois)
1925-11-18 Deutsche allgemeine Zeitung
1926-06-12 Pilsner Tagblatt
1928-11-13 Suomen Sosialidemokraatti
1928-11-28 De Maasbode
1928-11-30 De Maasbode
1928-12-05 De Maasbode
1928-12-05 Helsingin Sanomat
1928-12-11 Algemeen Handelsblad
1928-12-12 De Maasbode
1928-12-18 Algemeen Handelsblad
1929-01-11 Suomen Sosialidemokraatti
1929-03-01 Helsingin Sanomat
1929-04-06 Maaseudun Tulevaisuus
1929-08-15 Helsingin Sanomat
1929-10-08 Helsingin Sanomat
1929-11-09 Keskisuomalainen
1930-01-28 De Telegraaf
1935-10-17 Algemeen Handelsblad
1951-09-20 Birmingham Daily Post (UK)
1951-11-07 The Guardian (UK)
1952-02-02 De Preangerbode
1952-08-30 De vrije pers
1953-04-01 De locomotief
1953-07-14 De Preangerbode
1956-02-07 De Preangerbode
1956-02-20 The Birmingham Mail (UK)
1956-02-22 The Birmingham Mail (UK)
1956-11-29 Birmingham Daily Gazette (UK)
1957-03-30 The Sydney Morning Herald (NSW, Australia)
1957-07-18 Birmingham Daily Post (UK)
1958-02-25 Birmingham Daily Post (UK)
1958-02-25 The Birmingham Post and Birmingham Gazette (UK)
1958-05-19 The Miami Herald (Florida)
1958-08-30 Algemeen Handelsblad
1958-11-29 Algemeen Handelsblad
1959-02-12 Birmingham Daily Post (UK)
1959-04-16 The Guardian (UK)
1959-10-10 De Volkskrant
1960-01-09 Algemeen Handelsblad
1960-01-27 The Minneapolis Star (Minnesota)
1961-01-21 Algemeen Handelsblad



Articles

Here are some articles related to Grimme, Natalis & Co., and Brunsviga calculators.

1893-07-20 Leipziger Tageblatt und Anzeiger
1893-10-20 London and China Express (UK)
1893-11-30 Albany Weekly Herald (Oregon)
1893-12-02 The Sydney Morning Herald (Australia)
1894-02-17 Edinburgh Evening News (UK)
1894-03-03 Dundee Evening Telegraph (UK)
1894-08-30 The Royal Cornwall Gazette Falmouth Packet and General Advertiser (UK)
1899-11-20 The Pall Mall Gazette (UK)
1899-11-24 The Pall Mall Gazette (UK)
1899-12-02 The Pall Mall Gazette (UK)
1905 Tools of Business - Brunsviga
1910-07-22 Portsmouth Daily Times (Ohio)
1911-01-11 The Times (London UK)
1873-08-30 Wiener Welt-Ausstellung
1873-09-06 Wiener Welt-Ausstellung
1885-04-01 journal of domestic appliances
1892-09-10 Schweizerische Bauzeitung
1892-10-02 journal of domestic appliances
1893-11-24 De Maasbode
1893-11-27 Het nieuws van de dag
1893-12-01 Leeuwarder Courant
1899-04-12 De Telegraaf
1899-04-21 Algemeen Handelsblad
1899-05-18 Het nieuws van den dag
1901-04-23 Het nieuws van den dag voor Nederlandsch-Indie
1902-09  Zeitschrift fur Instrumentenkunde
1903-12-30 Report on the organization and working of railways in America
1905-08-04 The Railroad Gazette
1911-07 Royal Statistical Society Journal
1953-04-12 The La Crosse Tribune (Wisconsin)


Die Rechenmaschine Brunsviga
(1897-08-18, Prometheus)

1897-08-18  Prometheus 1
1897-08-18  Prometheus 2
1897-08-18  Prometheus 3
1897-08-18  Prometheus 4
1897-08-18  Prometheus 5


Modern Instruments and Methods of Calculation, a Handbook of the Napier Tricentenary Exhibition
(1914)

1914 Modern Instruments Napier Tricentenary 1
1914 Modern Instruments Napier Tricentenary 2
1914 Modern Instruments Napier Tricentenary 3
1914 Modern Instruments Napier Tricentenary 4
1914 Modern Instruments Napier Tricentenary 5
1914 Modern Instruments Napier Tricentenary 6
1914 Modern Instruments Napier Tricentenary 7


Illustriertes Orga-Handbuch erprobter Büromaschinen
(1921, Ludwig Brauner and Victor Vogt)

1921 Orga-Handbuch - brunsviga1
1921 Orga-Handbuch - brunsviga2
1921 Orga-Handbuch - brunsviga3
1921 Orga-Handbuch - brunsviga4


The Calculating Machines
(1925, Ernst Martin)

1925 Ernst Calculating Machines 1
1925 Ernst Calculating Machines 2
1925 Ernst Calculating Machines 3
1925 Ernst Calculating Machines 4
1925 Ernst Calculating Machines 5


Organisations-Lexikon
(1930, Walter Le Coutre and Walter Thoms)

1930 Organisations-Lexikon - Brunsviga


Moderne Buero-Maschinen
(1931)

1931_Moderne_Buero-Maschinen Brunsviga


Elementary Mathematics from an Advanced Standpoint
(1932, Felix Klein)

1932 Elementary Mathematics 1
1932 Elementary Mathematics 2
1932 Elementary Mathematics 3
1932 Elementary Mathematics 4
1932 Elementary Mathematics 5
1932 Elementary Mathematics 6



Patents

Here is a large selection of patents relating to Brunsviga's pinwheel machines leading up to the Nova series. Most are by Franz Trinks.

PatentFiling datePublished dateNameDescription
DE 124,57807-07-190021-10-1901Franz TrinksLock crank/input when clearing
See also AT 9,031 B, GB 1900/19,762
DE 126,74326-06-190008-01-1902Franz TrinksLock input when crank turns
See also AT 9,034 B, GB 1900/19,762
FR 344,54107-09-190407-11-1904Franz TrinksInput register
AT 30,756 B16-11-190525-11-1907Franz TrinksLock input when shifting carriage
AT 30,763 B16-11-190525-11-1907Franz TrinksOvershoot prevention
DE 185,00507-11-190516-05-1907Franz TrinksLock input through pin at crank handle
AT 32,602 B19-10-190610-04-1908Franz TrinksIndependent input pins
See also FR 6,833 E, GB 1906/23,659
FR 362,96921-04-190618-07-1906Franz TrinksCarry mechanism lever
US 843,50606-03-190605-02-1907Franz TrinksInput lever arrangement
DE 203,65926-10-190729-10-1908Franz TrinksCounter with complemetary digits
See also AT 39,207 B, CH 45,340, DK 12,416 C, FR 395,531, GB 1908/22,435, US 935,565
US 975,18013-06-190708-11-1910Franz TrinksFixed counter
AT 43,003 B29-03-190911-07-1910Grimme, Natalis & Co.Carriage shift by button press
See also CH 50,241, FR 409,262, US 967,821
AT 43,677 B29-03-190925-08-1910Franz TrinksBack transfer
DE 224,13125-07-190812-07-1910Grimme, Natalis & Co.Register locking mechanism
See also AT 47,275 B, CH 49,626, DK 13,282 C, US 953,622
DK 13,284 C10-07-190930-05-1910Grimme, Natalis & Co.Carriage shift mechanism
See also CH 49,628, FR13873E, FR 406,992, US 946,367
AT 59,385 B24-04-191226-05-1913Franz TrinksBlock input when clearing register
See also CH 59,698, FR 443,343, GB 1912/10,604, US 1,040,059
AT 61,307 B12-10-191225-09-1913Franz TrinksInput display register
See also CH 61,229, FR 449,723, GB 1912/24,275
AT 63,783 B02-01-191310-03-1914Franz TrinksRatcheted clearance mechanism
See also CH 62,620, FR 452,838
AT 66,728 B18-10-191325-09-1914Franz TrinksCarry mechanism
See also CH 66,344, FR 463,789, GB 1913/25,754
AT 66,729 B22-12-191325-09-1914Franz TrinksCarry mechanism
See also CH 67,131, FR 466,956, GB 1914/00,037, US 1,098,193, US 1,100,631
AT 68,733 B16-03-191425-05-1915Franz TrinksCarry mechanism improvement
See also CH 68,850, FR 470,156, GB 1914/07,963, US 1,134,780
AT 68,992 B27-03-191410-06-1915Franz TrinksOptionally copied input
See also CH 71,871, GB 1914/08,867, US 1,118,829
FR 467,39617-01-191410-06-1914Carl Rasmussen; Grimme, Natalis & Co.Carry mechanism
AT 72,870 B06-08-191527-12-1916Franz TrinksLock crank when pins not aligned
See also CH 71,476, FR 520,006, GB 147,114, US 1,220,029
CH 72,51529-11-191502-06-1916Grimme, Natalis & Co.Lock crank when pins not aligned
See also US 1,194,900
CH 72,99027-11-191501-08-1916Grimme, Natalis & Co.Pin alignment
CH 72,99127-11-191517-07-1916Franz TrinksLock crank when pins not aligned?
CH 91,91716-06-192001-12-1921Franz TrinksMechanism for shifting window on counter
DE 321,611 C23-04-191909-06-1920Franz TrinksCounter register with complementary digits and sliding window
See also SU 10,427
DE 325,901 C18-04-191909-01-1922Franz TrinksCounter register with complementary digits and sliding window
See also AT 86,598 B, CH 90,733, DE 325,902 C, DE 325,903 C, SU 10,427,US 1,445,461
AT 90,434 B10-12-192027-12-1922Franz TrinksFixed counter above input
See also CH 91,167, FR 528,855, GB 157,898
DE 354,897 C21-06-192120-06-1922Grimme, Natalis & Co.Mechanism for shifting window on counter
DE 359,634 C18-12-192125-09-1922Grimme, Natalis & Co.Input alignment mechanism
DE 377,424 C15-09-192218-06-1923Grimme, Natalis & Co.Lock for transport
DE 378,838 C01-11-192206-08-1923Grimme, Natalis & Co.?? shifting mechanism
DE 383,722 C31-10-192217-10-1923Grimme, Natalis & Co.?? Register clearing mechanism disengages clicking mechanism
DE 384,531 C22-08-192203-11-1923Grimme, Natalis & Co.Input clearing mechanism
DE 386,578 C21-11-192221-12-1923Grimme, Natalis & Co.Number wheel
DE 390,460 C29-03-192319-02-1924Franz TrinksWarning bell on counter with sliding window
See also AT 99,483 B, CH 108,102, DK 34,004 C, FR 577,413, GB 213,549
DE 393,955 C20-06-192311-04-1924Franz TrinksCarriage shifting mechanism
DE 396,316 C21-03-192202-07-1924Grimme, Natalis & Co.Input clearing disengages clicking mechanism
CH 107,41409-02-192416-10-1924Grimme, Natalis & Co.Pinwheel
See also DK 33,854 C, FR 577,245, GB 212,540
AT 99,766 B07-02-192425-04-1925Franz TrinksWarning bell on counter with sliding window
See also CH 108,220, DK 34,136 C, FR28776E, GB 212,561
AT 101,809 B20-09-192425-11-1925Grimme, Natalis & Co.Crank handle cradle lock
See also CH 110,312, DK 35,306 C, FR 586,482, GB 224,212
CH 110,31103-09-192401-06-1925Grimme, Natalis & Co.Carriage shift mechanism
See also DK 34,566 C, GB 223,895, SU 5,719
GB 212,54803-03-192422-01-1925Grimme, Natalis & Co.Shifting carriage rack
GB 223,89408-10-192411-06-1925Grimme, Natalis & Co.Number wheel
GB 224,21104-10-192412-03-1925Grimme, Natalis & Co.Single tooth drive
CH 113,19823-03-192502-01-1926Grimme, Natalis & Co.Clearing indicator
See also GB 233,672
DE 401,412 C02-03-192404-09-1924Grimme, Natalis & Co.decimal point indicators
DE 404,370 C17-04-192418-10-1924Grimme, Natalis & Co.carry mechanism
See also DE 412,945 C, FR 595,063, GB 232,577
DE 404,887 C14-05-192425-10-1924Grimme, Natalis & Co.Clearing mechanism
See also CH 112,987, DK 35,289 C, GB 234,061
DE 405,482 C17-04-192406-11-1924Grimme, Natalis & Co.carry mechanism
See also GB 232,567
DE 408,461 C11-04-192429-01-1925Grimme, Natalis & Co.Guard against crank reversal
DE 409,297 C22-06-192405-02-1925Grimme, Natalis & Co.Lock input
DE 411,403 C12-10-192420-03-1925Grimme, Natalis & Co.Decimal point indicator
DE 412,373 C02-10-192421-04-1925Grimme, Natalis & Co.Lock input
DE 415,284 C18-04-192412-02-1928Grimme, Natalis & Co.pins in two sections
DE 416,830 C24-12-192427-07-1925Grimme, Natalis & Co.Carry mechanism
DE 419,313 C20-12-192408-10-1925Grimme, Natalis & Co.Simplified number wheel construction
See also AT 102,415 B, CH 113,197, DK 35,372 C, GB 229,301
DE 426,140 C20-12-192409-03-1926Grimme, Natalis & Co.Improved pinwheel
See also AT 102,414 B, CH 112,632, DK 35,119 C, FR 596,069, GB 228,902
DE 414,135 C21-09-192317-02-1926Grimme, Natalis & Co.Calculation mechanism timing
See also CH 118,488, DK 35,686 C, SU 7,077
DE 416,040 C15-01-192507-07-1925Grimme, Natalis & Co.Carriage alignment during back transfer
See also GB 230,828
DE 416,828 C04-02-192527-07-1925Grimme, Natalis & Co.Turn direction indicator
DE 417,288 C05-02-192510-08-1925Grimme, Natalis & Co.Backtransfer interlock
See also CH 118,033, DK 36,935 C, FR 610,268
DE 417,396 C04-02-192514-08-1925Grimme, Natalis & Co.Backtransfer
See also CH 118,489, DK 36,934 C, FR 610,247, SU 7,076
DE 418,746 C27-02-192521-09-1925Grimme, Natalis & Co.Backtransfer interlock
See also CH 118,490, DK 36,936 C, FR 610,269, SU 8,380
DE 418,749 C20-02-192521-09-1925Grimme, Natalis & Co.Clearing mechanism for register
See also CH 117,597, DK 36,643 C
DE 437,284 C30-04-192618-11-1926Grimme, Natalis & Co.Crank cradle pincer
Here are the patents related to the Brunsviga 10 and its descendants.
PatentFiling datePublished dateNameDescription
DE 554,277 C07-03-193116-06-1932Grimme, Natalis & Co.Brunsviga 10
DE 565,704 C04-09-193124-11-1932Grimme, Natalis & Co.Input mechanism
DE 576,881 C02-10-193104-05-1933Grimme, Natalis & Co.Carry mechanism
DE 578,683 C04-09-193117-06-1933Grimme, Natalis & Co.Keyboard and back transfer
US 2,042,98608-06-193202-06-1936Richard Haase; Grimme, Natalis & Co.Brunsviga 10, single axle
US 2,545,55014-09-194920-03-1951Kurt Jordan; Brunsviga MaschinenwerkeImproved input clearing mechanism
US 2,648,49814-09-194911-04-1953Kurt Jordan; Brunsviga MaschinenwerkeImproved drum axle construction
Here are the few design patents related to the Brunsviga TA, by Siegfried link.
PatentFiling datePublished dateNameDescription
DE 1,709,046 U26-07-195527-09-1955Siegfried LinkGreen complement numbers
DE 1,709,047 U30-07-195527-09-1955Siegfried LinkInput register

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