Martin (Dtsch), pages 165 - 174 & 433 - 435
"Designer: Christel Hamann of Berlin. Manufacturer: Mercedes Office Machine Works of Berlin. The principle upon which all Euklid models have been based differs entirely from the calculating machine systems so far described. The actuating mechanism consists of ten parallel racks that are proportionally displaced by a lever connected to the racks."

source: R.Rehbein
Prof. C. Hamann: Diagram to explain the proportional lever
for a comprehensive overview of the development of the Mercedes-Euklid read the article of E.Anthes (in German).
Production numbers
|
year |
model |
total |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
I |
II |
III |
IV |
V |
VI |
VII |
VIII |
Plus |
Gauss |
||
| 1910 | 8 | 22 | 19 | 49 | |||||||
| 1911 | 31 | 10 | 12 | 53 | |||||||
| 1912 | 210 | 210 | |||||||||
| 1913 | 393 | 5 | 3 | 401 | |||||||
| 1914 | 360 | 6 | 6 | 28 | 20 | 6 | 8 | 434 | |||
| 1915 | 7 | 2 | 1 | 10 | |||||||
| 1916 | 23 | 1 | 24 | ||||||||
| 1917 | 17 | 17 | |||||||||
| 1918 | 7 | 1 | 8 | ||||||||
| 1919 | 421 | 37 | 1 | 7 | 3 | 469 | |||||
| 1920 | 1064 | 70 | 17 | 3 | 118 | 26 | 1298 | ||||
| 1921 | 93 | 129 | 54 | 10 | 359 | 180 | 825 | ||||
| 1922 | 218 | 111 | 24 | 8 | 246 | 223 | 830 | ||||
| total | 2852 | 6 | 6 | 383 | 120 | 28 | 738 | 432 | 32 | 31 | |
source: Historische Bürowelt, Ausgabe 39, page 5, 9.94 (IFHB)
M.Reese and Prof.E.Anthes published a time table, serial number and model overview:
(2MB, in German) Beilage
zur HBw-Aktuell 5/2000 (IFHB)
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | slides | ||
| prod. years | 1910 - 1927 | ||
| mach. built | ca. 7.000 - 8.000 | ||
| features | stop division | ||
| dimensions | 37 x 21 x 20 cm | ||
| weight | 13 kg | ||
| known s/n | 1 - 11.000 |
||
| for bigger and more pictures, click on the picture |
source: Mathias Leder
Model II as model I, but smaller capacity
Model III as model I, but no division
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1913 - 1927 | ||
| mach. built | ca. 500 - 1.000 | ||
| features | as model I | ||
| dimensions | 37 x 21 x 29 cm | ||
| weight | 18 kg | ||
| known s/n | 700 - 11.000 |
||
| for bigger and more pictures, click on the picture |
source: W.Szrek
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | slides | ||
| prod. years | 1913 - 1927 | ||
| mach. built | ca. 600 | ||
| features | 17 digit sum & complement register | ||
| dimensions | 47 x 31 x 21 cm | ||
| weight | 24 kg | ||
| known s/n | 700 - 11.000 |
||
| for bigger and more pictures, click on the picture |
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1914, 1918 - 1927 | ||
| mach. built | ca. 400 | ||
| features | as model V | ||
| dimensions | 47 x 38 x 30 cm | ||
| weight | 28 kg | ||
| known s/n | 1.100 - 11.000 |
||
| for bigger and more pictures, click on the picture |
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 9 (w cr) x 8 (w tc) x 13 |
||
| input | slides | ||
| prod. years | 1919 - 1932 | ||
| mach. built | |||
| features | electric, 8 digit multiplication register, automatic division & multiplication | ||
| dimensions | 48 x 28 x 22 cm | ||
| weight | 23 kg | ||
| known s/n | 1.600 - 16.000 |
||
| for bigger and more pictures, click on the picture |
source: HJ.Denker
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1919 - 1934 | ||
| mach. built | |||
| features | as model VII | ||
| dimensions | 48 x 28 x 34 cm | ||
| weight | 28 kg | ||
| known s/n | 1.600 - 19.000 |
||
| for bigger and more pictures, click on the picture |
source: H.Weiffen
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 13 (w cr) x 8 (w tc) x 16 |
||
| input | slides | ||
| prod. years | 1925 - 1932 | ||
| mach. built | |||
| features | automatic division | ||
| dimensions | 37 x 23 x 20 cm | ||
| weight | 13.3 kg | ||
| known s/n |
10.000 - 17.000 |
||
| for bigger and more pictures, click on the picture |
source: W.Szrek
| principle | proportional gear |
|
|
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1925 - 1932 | ||
| mach. built | |||
| features | as model IX | ||
| dimensions | 38 x 23 x 29 cm | ||
| weight | 19 kg | ||
| known s/n |
10.000 - 17.000 |
||
| for bigger and more pictures, click on the picture |
| principle | proportional gear | ||
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | slides | ||
| prod. years | 1925 - 1932 | ||
| mach. built | |||
| features | as model IX, but electric | ||
| dimensions | 39 x 26 x 21 cm | ||
| weight | 18 kg | ||
| known s/n |
10.000 - 17.000 |
||
| for bigger and more pictures, click on the picture |
source: Michael
| principle | proportional gear |
|
|
| capacity |
9 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1925 - 1932 | ||
| mach. built | |||
| features | as model XI | ||
| dimensions | 39 x 26 x 24 cm | ||
| weight | 23 kg | ||
| known s/n |
10.000 - 17.000 |
||
| for bigger and more pictures, click on the picture |
| principle | proportional gear | ||
| capacity |
13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | from 1928 | ||
| mach. built | |||
| features | electric, 16 digit sum and complement register | ||
| dimensions | |||
| weight | |||
| known s/n | 18 787 |
||
| for bigger and more pictures, click on the picture |
source: A.Devaux
| principle | proportional gear | ||
| capacity |
13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1928 - 1935 | ||
| mach. built | |||
| features | automatic division | ||
| dimensions | |||
| weight | |||
| known s/n |
12.500 - 22.500 |
||
| for bigger and more pictures, click on the picture |
Model 18 (V)
combined full- and half-automate; for each calculation type only one button to operate; full-automatic positive and negative multiplication; half-automatic positive and negative multiplication; full-automatic division; automatic comma placement.
| principle | proportional gear | ||
| capacity |
13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 1932 - 1935 | ||
| mach. built | |||
| features | electric, automatic multiplication (+/-), automatic division (+/-) | ||
| dimensions | |||
| weight | |||
| known s/n | 16.500 - 22.500 |
||
| for bigger and more pictures, click on the picture |
source: P.Elter / photos by T.Elter
(6MB, in German) Handbuch
für die Mercedes-Euklid Model 18 (special thanks
to T.Elter)
In the 50ties the following models were still build in the Mercedes factory: 21, 29, 37, 37SM, 38, 38SM with the prefix of "R", i.e. R29, etc. The green/black color was replaced by gray and the name changed from Mercedes Euklid to just Mercedes.
From ca. 1963 the machines were sold under the name Cellatron.
Model 21 / 21(EP) / 22(E)
| principle | proportional gear | ||
| capacity |
21 (EP) 9 (w/o cr) x 6 (w tc) x 12 22 (E) 13 (w/o cr) x 8 (w t/c) x 16 |
||
| input | full keyboard | ||
| prod. years | 1933 - 1953 | ||
| mach. built | |||
| features |
electric, automatic division (+/-) new design 21: separation of keyboard |
||
| dimensions | 31 x 36 x 17 cm | ||
| weight | 15 kg | ||
| known s/n | 17,000 - 114,000 |
||
| for bigger and more pictures, click on the picture |
| principle | proportional gear | ||
| capacity | 13 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | 24E: ca. 1933 - 1935 22S: 1935 - 1953 |
||
| mach. built | |||
| features | electric, 16 digit storage register, 16 digit complement register |
||
| dimensions | |||
| weight | |||
| known s/n | 17 000 - 114 000 |
||
| for bigger and more pictures, click on the picture |
source: A.Devaux
Model 29 / R29
| principle | proportional gear | ||
| capacity |
7 (w/o cr) x 6 (w tc) x 12 9 (w/o cr) x 6 (w t/c) x 12 |
||
| input | full keyboard | ||
| prod. years | 29:
1936 - 1952
R29: 1953 |
||
| mach. built | |||
| features |
automatic division |
||
| dimensions | 31 x 33 x 20 cm | ||
| weight | 13 kg | ||
| known s/n | 29: 26,500 - 96,000 |
||
| R29: 114,785 | |||
| for bigger and more pictures, click on the picture |
source: W.Szrek
| principle | proportional gear | ||
| capacity |
7 (w/o cr) x 6 (w tc) x 12 9 (w/o cr) x 6 (w t/c) x 12 |
||
| input | full keyboard | ||
| prod. years | 1936 - 1945 | ||
| mach. built | |||
| features |
electric, stop division |
||
| dimensions | 32 x 38 x 18 cm | ||
| weight | 15 kg | ||
| known s/n | 26,400 - 57,300 |
||
| for bigger and more pictures, click on the picture |
source: H.Schneemann
Model 37 / R37
| principle | proportional gear | ||
| capacity |
12 (w/o cr) x 6 (w tc) x 12 |
||
| input | full keyboard | ||
| prod. years |
37: 1934 - 1944 R37: |
||
| mach. built | |||
| features |
electric, full automatic, 12 digit complement register |
||
| dimensions | 31 x 37 x 17 cm | ||
| weight | 17 kg | ||
| known s/n | 37: 19,000 - 55,500 R37: 104,521 |
||