"Designer: Glen G. Barrett. Manufacturer: originally the Barrett Adding Machine Company, 142 Court St., Grand Rapids; since January 1 , 1922, Lanston Monotype Machine Company, Philadelphia."

Computermuseum Groningen

Uni Greifswald

Office museum

manufacturer: Graber Calculating Machines Co., New York, N.Y.

"The Tourtel is a printing adding machine with setting levers just like the pin-wheel machines. It is equipped only for English currency. The lever on the right side of the machine is marked F (farthings), followed by D (pence), I (shilling), and finally 10 (shillings). The remaining three levers are for pounds - the machine is thus capable of adding up to £999. 

The designer is John Mesny Tourtel, London. and the manufacturer is The Tourtel Adding Machine Syndicate, Ltd.. 57 Chiswell Street, London E.C. "

"This pinwheel machine is manufactured by Joseph Köpfer und Söhne G.m.b.H. in Furtwangen (Baden) and is distributed without any special advertising. The locking device on the machine has been patented - it prevents the crank from being turned before it is in the correct position and also prevents the machine from being damaged by incorrect handling."

"This machine was brought onto the market by Sirius-Werk, Wilhelm Keil in Nördlingen. It is shaped like a cash register with vertically positioned calculating gears. In place of the setting windows, the calculating gears have handles with knobs by means of which data entry can be carried out manually. The machine had nine places and cost 150 marks, but it has now disappeared from the market."

"Designer: Roberto Taeggi Piscielli in Naples. Manufacturer: Société Industrielle des Téléphones, of Paris. Sales agency: S. A. des Anciennes Establisements Nico Sanders, Paris.

Originally the machine bore the name L'Eclair. It has a remarkable pinwheel construction with electric drive."

"The firm Procento, Ungarische Rechen-und Schreibmaschinenfabnk A-G in Kassa, used this name for both a stepped drum machine without any special features and a pinwheel machine as represented in figure 230. The latter was designed especially for calculating interest, but further details are unavailable. Today, the business carries the firm name Laplace Rechenmaschinenwerke und elektrische Uhrenfabrik, Inh. Victor Bernovits, Komenskeho ustav, Kosice, Czechoslovakia.

note: the Rema machine in front of the Procento is used for further calculations with the Procento results; there is no mechanical connection between the two machines.

Austin (1912)

Martin (US), pages 267 - 268

Martin (Dtsch), pages 288

"This is a nonprinting ten-key adding machine of the Austin Adding Machine Corporation, 927 Linden Avenue, Baltimore."

"The Teetzmann machine is distinguished from other pinwheel machines largely by the fact that it has nine setting levers and control windows in front of the carriage. It is possible to operate the setting levers with the left hand only, while the right hand remains on the crank. 

The machine is 20 cm long and 17 cm high. While there are only a few of these machines in Germany. a large number of them have been supplied from Manchester in England, and overseas under the name of Colts Calculator.

Manufacturer: Teetzmann and Company, G.m.b.H, Charlottenburg. Frauenhofer Strasse 18/19. In July 1915, this firm went into liquidation and the machine is no longer being manufactured."

"The Burroughs Calculator closely resembles the Comptometer described earlier. It is a calculating machine in which the keys directly operate the calculating mechanism, which is underneath the keyboard, so that neither crank nor electric drive is necessary.  

The machine is only available in seven-place or thirteen-place versions; both models have an extra place in the result mechanism. There are special models available for fractions and English currency.

Manufacturer: Burroughs Adding Machine Company, Detroit."

see  Burroughs class 5

"Manufacturer: Carl Landolt, Thalwil near Zürich. This is a cogged disk adding machine.

This machine is available with six, eight, ten, or eleven places and for English currency with either nine or ten places."

Beaucourt (1912)

inventor: Edmond Beaucourt, Lyon, France

Trick (1912)

"In appearance this machine resembles the Pebalia, but it is of a fundamentally new design and new patent. It was brought onto the market by Michel Baum, Hohenzollern Strasse 54, Munich."

"Designer: Hugo Cordt, of Nordenham. The first machines were sold under the name Tasten-Universal Rechenmaschine and manufactured, at that time by the Nordenhammer Rechenmaschinen A.G. in Oldenburg. The original machine is shown in figure 238. In 1914 the production was taken over by the Rechenmaschinen Fabrik, H. Ohlmann & Company of Oldenburg, which then moved it, in the same year, to Berlin SO 16 Kopenicker Strasse 72. At present the sole manufacturer, and owner of the patents, is Karl Lindstrom. A. G. of Berlin SO 33 Schlesische Strasse 26."

"This is a small adding machine with chain setting. The manufacturer was Gesellschaft fur Präzionstechnik G.m.b.H, Aite Jakob Strasse 20, Berlin SW 68. It was sold principally in Germany and, to a lesser extent, in France."

Martin (US), pages 277 - 278

Martin (Dtsch), pages 297 - 298

American (1913)

Martin (US), pages 278 - 279

Martin (Dtsch), pages 298 - 300

model 4

model 5