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ADDOMETER for Non-Metric Calculations
FEET / INCHES / FRACTIONS ( 1/8 ... 7/8 )



DETAIL ...



Have a look at a METRIC ADDOMETER ...
Non-Metric  A D D O M E T E R  FEET / INCHES / FRACTIONS ( 1/8 ... 7/8 )
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W*D*H = 11_1/2" * 2_3/8" * 5/8" = 29 cm * 6 cm * 14 mm ;   12 oz = 325 g

With its  stylus,  ADDITION  will be performed  by using  the inner  BIG
figures,  turning  the wheels  clockwise.  SUBTRACTION  uses  the  outer
SMALL  figures,  turning  the wheels  counter-clockwise.  To  CLEAR  the
register  pull the right lever to the right.  The stylus get  pulled out
of its holder by pulling the clearing lever.

RELIABLE TYPEWRITER & ADDING MACHINE CO., Chicago, IL / USA       (1960)

R E M A R K S   T O   R E S T O R A T I O N :
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The ADDOMETER was bought via eBAY as  "... All parts working"  - A LIE !

NO 10s-CARRIES of the 1st (= Fraction-)WHEEL because of its LOOSE LEVER;
NO 10s-CARRIES of the 3rd WHEEL because of its broken TRANSFER WHEEL ...

  

AND some wheels  "fall not in place"  because the friction of its rosty
axles. After cleaning - AND EXCHANGE the leftmost TRANSFER WHEEL in the
3rd position, the ADDOMETER works fine now ( with 7 figures ) ...

P R O J E C T :  3D-PRINTING OF A NEW TRANSFER WHEEL ...
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            ... DONE = "THANKS!" to my skilled friend at 5D-art.net
impressum:
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© C.HAMANN      http://public.beuth-hochschule.de/~hamann      04/02/15