Odhner, Model A

 

ser.no: 4 194

the earliest image with a long handle that we have [long handle started at ca 3400]

source: A.Plamondon

 

 

 

source: A.Plamondon

 

 

 

note: the instructions attached to the cover still shows the short handle model

source: A.Plamondon

 

 

 

 

ser.no: 4 941

source: K.Odhner

 

 

 

 

ser.no: 5 422

source: W.Szrek

 

 

 

source: W.Szrek

 

translation of the instructions:

Please remember!       Please remember!

To avoid damaging arithmometer and to get absolutely correct results it is necessary to respect the following before each use:

  1. Carriage B should be set in steady position i.e. shift K should be located in one of the openings in the base. One can check it trying to shift carriage slightly to the left.

  2. Turn both butterfly wings C till they click, this will cause displays to clear (set to zero).

  3. Handle F should always make a full turn (forward and backward turn should always end in the handle position G).

  4. One should turn handle F in a uniform manner without jerking with as steady speed as possible (150 turns per minute).

  5. Lubricate turning parts 1-2 times per year with a drop of clean oil. You need to clean those parts first with benzene or clean the dust off with a cloth. 

 

 

 

ser.no: 6 582

source: W.Szrek

 

 

 

ser.no: 6 583

source: HJ.Denker

 

 

 

 ser.no: 8 482

source: H. van Oost

 

 

source: H. van Oost

 

 

source: H. van Oost

 

            

 

 ser.no: 8 708

source: V.Monnier

 

 

 

source: V.Monnier

 

 

 

ser.no: 11 506

source: van Noort

 

 

source: van Noort

 

 

ser.no: 12 309

source: W.Szrek

 

 

 

ser.no: 12 326

source: A.Pohl

 

 

source: A.Pohl

 

 

 

 ser.no: 12 536

source: K.Odhner

 

 

 

ser.no: 13 896

source: W.Szrek

 

 

 

ser.no: 13 918

source: S.Frolov

 

 

source: S.Frolov

 

 

 

ser.no: 21 075

source: A.Tazin

 

 

source: A.Tazin

 

 

source: A.Tazin

 

 

ser.no: 21 433

source: HJ.Denker

 

 

 

 ser.no: 22 549

source: T.Hampel

 

 

 

source: T.Hampel

 

 

 

source: T.Hampel

 

 

ser.no: 27.658

source: fedorov7

 

 

 

 

last updated: 02-Apr-11