Martin (Dtsch), pages 261 - 265 & 430 - 431
"Manufacturer: Marchant Calculating Machine Company of Oakland. The Marchant is a pinwheel machine that operates like the one described in the introduction. Originally two models were manufactured, the Pony and the Standard, which differ from one another in size."
Martin Reese in his book "Neue Blicke auf alte Maschinen" describes the development of the Marchant company and calculator models (page 118 ff.)
other articles about Marchant:
Nicholas Bodley: Some notes about Marchant calculators
Nicholas Bodley: Marchant: Some Preliminary Remarks
Ernie Jorgenson: My Years with Marchant
According to P. Kidwell Marchants were initially imported from France (Dactyle).
| principle | pin wheel |
|
|
| capacity | 9 x 8 x 13 | ||
| input | cursors, rotating | ||
| production years | ??? | ||
| machines built | ??? | ||
| features | |||
| for bigger and more pictures, click on the picture |
source: W.Szrek
for more pictures, click on the
picture
source: E.Weigel
the Marchant Standard A has the physical dimensions of 37.5 x 25 x 12.5 cm (width x deep x height) and a weight of 13kg, while the Standard B is 45 x 25 x 12.5 and has a weight of 15kg.
| principle | pin wheel |
|
|
| capacity |
A: 9 x 8 x 13 B: 9 x 10 x 18 |
||
| input | cursors, rotating | ||
| production years | ca. 1917 - 1922 | ||
| machines built | ??? | ||
| features | |||
| for bigger and more pictures, click on the picture |
source: E.Weigel
the Marchant Pony A has the physical dimensions of 30 x 20 x 12.5 cm (width x deep x height) and a weight of 6.5kg, while the Pony B is 32 x 20 x 12.5 and has also a weight of 6.5kg.
the Marchant Pony Special A/B has an additional control register.
Note: at some time, the mechanical principle of the Marchant Pony changed from pinwheel (and rotating cursors) to adapting segments (with non-rotating cursors). It is currently not known, at what time or serial number this switch took place.
| principle | see above note |
|
|
| capacity |
A: 9 (w/o cr) x 8 (w/o tc) x 13 B: 9 (w/o cr) x 10 (w/o tc) x 18 |
||
| input | see above note | ||
| prod. years | |||
| mach. built | |||
| features |
|
||
| dimensions | see above note | ||
| weight | 7 kg | ||
| known s/n | 120, 345, 1,522, 5,037, 71,334 | ||
| for bigger and more pictures, click on the picture | |||
| source: D.Verhoeven |
| principle | adapting segment |
|
|
| capacity |
9 x 9 x 13 |
||
| input | cursors, non-rotating | ||
| prod. years | ca. 1923 - ??? | ||
| mach. built | |||
| features |
|
||
| dimensions | |||
| weight | |||
| known s/n | 46.056 | ||
| for bigger and more pictures, click on the picture | |||
| source: |
| principle | adapting segment |
|
|
| capacity |
9 (w cr) x 9 (w tc) x 18 |
||
| input | cursors, non-rotating | ||
| prod. years | ca. 1924 - 1933 | ||
| mach. built | |||
| features | counter register in a fixed position |
||
| dimensions | 41 x 16 x 16 cm | ||
| weight | 7 kg | ||
| known s/n | low 91 571, high 94 891 | ||
| for bigger and more pictures, click on the picture |
| principle | adapting segment |
|
|
| capacity | (2 x 9) x 9 x (2 x 18) | ||
| input | cursors, non-rotating | ||
| production years | ca. 1930, 1944 | ||
| machines built | ??? | ||
| features | constructed from 2 Marchant XL | ||
| known s/n | 347, 363, 30.049 | ||
| for bigger and more pictures, click on the picture | |||
| source: P.Vlerick |
| principle | adapting segment |
|
|
| capacity | 8 x 8 x 16 | ||
| input | full keyboard | ||
| production years | ca. 1930 ??? | ||
| machines built | |||
| features | |||
| known s/n | 37.076 | ||
| for bigger and more pictures, click on the picture | |||
| source: F.Haeghens |
| principle | adapting segment |
|
|
| capacity |
KA: 6 x 6 x 12 KB: 9 x 8 x 16 KC: 9 x 9 x 19 |
||
| input | full keyboard | ||
| production years | 1922 - 1934 | ||
| machines built | |||
| features | |||
| known s/n | 38,301 | ||
| for bigger and more pictures, click on the picture | |||
| source: HJ.Denker |
| principle | proportional gear |
|
|
| capacity |
8 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | ca. 1957 | ||
| mach. built | |||
| features | electric, successor of "Silent Speed", semi-autom. multiplication, full-autom. division |
||
| dimensions | 32 x 37 x 23 cm | ||
| weight | 15 kg | ||
| known s/n | 8-M-113795, 8-M-133xxx | ||
| for bigger and more pictures, click on the picture | |||
| source: R.Fedeli |
| principle | proportional gear |
|
|
| capacity |
8 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | |||
| mach. built | |||
| features | electric, automatic |
||
| dimensions | 35 x 40 x 22 cm | ||
| weight | 18 kg | ||
| known s/n | 8DRX 428,620 | ||
| for bigger and more pictures, click on the picture | |||
| source: R.Fedeli |
| principle | proportional gear |
|
|
| capacity |
8 (w cr) x 8 (w tc) x 16 |
||
| input | full keyboard | ||
| prod. years | |||
| mach. built | |||
| features | electric |
||
| dimensions | 35 x 40 x 22 cm | ||
| weight | 15 kg | ||
| known s/n | 8-DX 510,117 | ||
| for bigger and more pictures, click on the picture | |||
| source: R.Fedeli |
last updated: 21-Feb-12
