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Mechanical calculators: FACIT C1-13
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My brother-in-law found this machine stored in a friend's offices and gave me as a birthday present. The machine's keyboard and the rotor advancement mechanism were locked, but the crank worked in its base position, and the counter and accumulator reset levers worked nicely. After opening it up, I found the locks that were frozen in place, cleaned and lubricated them, and the machine was running practically as new. Among my FACITs, this one was in the best state. Old lubrication still worked, and the machine runs smoothly and with a light touch. I'll do a more thorough cleaning and partial disassembly in the future, but so far it is unnecessary. I had to clean the digit wheels and some other superficial parts, since the old lubricant was quite dark.
This machine was manufactured in about 1967 (ref, at FACIT's unit in Juiz de Fora, Minas Gerais, Brazil. This one has a plastic cover, which probably used to be light gray (judging from the inside of the cover), but is now yellowish – about the same color as my FACIT 10-04.
Have a mechanical calculator stored somewhere, and want to get rid of it? Send it to me!
FACIT C1-13 c. 1967 s/n B-128273
Disassembled parts
Base plate and keyboard
Right-hand side plate
Left-hand side plate
Division mechanims and carry lever detent bar
Accumulator and counter registers
Pinwheel rotor installed
Front view
Carry rotor
Masks and indicators
Finished
Rear view
Bottom view
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