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Thread: Vintage mechanical calculator - photo

  1. #1
    Jon
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    Beserkleyboy (07-14-2019), Seedtick (07-13-2019), trinketman (07-14-2019)

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    Supporting Member JoeVanGeaux's Avatar
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    Looks like an old Friden.

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    Supporting Member Beserkleyboy's Avatar
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    Beserkleyboy's Tools
    We had 3 Marchant hand crank models, converted with a motor hung off the carriage, and 2 smaller electric Monroe models at our lumber yard in Pleasant Hill, CA in the 60s. We did not replace them till the mid-late 70s! Folks would come in just to see the clerks clattering away, shifting the carriage...thanks for the memories...again..
    JimVintage mechanical calculator - photo-monroe-calculator1.jpg
    Last edited by Beserkleyboy; 07-14-2019 at 04:10 PM.

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    Supporting Member hemmjo's Avatar
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    hemmjo's Tools
    When I was a kid, my friend's dad had one with the hand crank in his home office. We spent hours pushing the buttons on that machine. As I recall the bigger the number you keyed in the harder it was to turn the crank, but the more gratifying the noise was when you turned it.

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    Supporting Member Toolmaker51's Avatar
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    Toolmaker51's Tools
    Friden maybe, Burroughs was my impression with that little ten-key off the side.
    Either way no match for more elegant and compact Comptometer.
    https://en.wikipedia.org/wiki/Comptometer
    Vintage mechanical calculator - photo-comptometer_model_st_super_totalizer.png
    This wikipedia photo identical to what my Aunt used, tallying AR's/AP's well into the full size desk electronic calculator era. Worked there 50+ years, retired and took The Comptometer home and did a little home business with it. It has been serviced but NEVER required repairs, used 5 [and probably a few 6] week days; by her only.
    This machine, despite all the keys can outrun another skilled operator on a digital. I think the trick lies in dual numbered keys, instead of separate = + - % X /.
    Due that operational design, requirement is better than average mathematics skills, to enact proper sequences.
    Last edited by Toolmaker51; 07-17-2019 at 05:04 PM.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    Supporting Member Duke_of_URL's Avatar
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    Used to move these beasts around from desk to desk at my father's office as a kid. Heavy monsters. It took mechanical geniuses to design these things and really sharp techs to keep them working.

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    Supporting Member VinnieL's Avatar
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    I remember when all the banks had them at each teller station.

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    Supporting Member hemmjo's Avatar
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    hemmjo's Tools
    Quote Originally Posted by VinnieL View Post
    I remember when all the banks had them at each teller station.
    Yep, I remember that also, scary things is, soon to come will be the question, "Grandpa, what is a teller?"

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    Supporting Member jdurand's Avatar
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    jdurand's Tools
    I was once in the control room of a large facility (visitor, not the time I was programming the controls) and they had one of those calculators. I entered a non-terminating division and hit GO. It was a clunking and click'n and a clack'n away when one of the operators can running over a pulled the plug. He thought I'd broken it.

    sorry.

    I have a very old manually operated many digit dial calculator, very nice (and works without batteries!).


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