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Thread: High-quality black-and-white photographs of large old machines and tools

  1. #111
    Supporting Member Frank S's Avatar
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    to minimize my usual spewing syllogistical thesis so I will stop here.
    Ha ha I'll have to remember that one judging from the length of most of my posts

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  3. #112
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    Steam hammer used for forging steel at the Midvale Steel Company, c. 1905.
    Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg


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    greyhoundollie (Feb 13, 2019), high-side (Feb 21, 2019), PJs (Feb 13, 2019), Seedtick (Feb 13, 2019), Toolmaker51 (Feb 13, 2019)

  5. #113
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    Installation of the Gargamelle chamber body. Placement of the chamber in the oblong shaped magnet coils. January 1970.
    Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg


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  7. #114
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    George A. Van Biesbroeck (1880-1974), astronomer at Yerkes Observatory observing Mars when it approached close to the earth in 1926, and using the 40 inch refracting telescope, the largest of its kind in the world.
    Fullsize image: https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg


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  9. #115
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    With some spare time; I'll make up funny labels for all those handwheels. I count 7...Sure, they're for mirror alignment, but that's boring.
    Last edited by Toolmaker51; Feb 19, 2019 at 07:16 PM. Reason: wait a minute, found 5 more.
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  10. #116
    Supporting Member suther51's Avatar
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    Real special label for the one with the wad of string (?) In the middle ;-)

    Tactile identifier?

    Eric
    Last edited by suther51; Feb 21, 2019 at 01:27 PM.

  11. #117
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    Quote Originally Posted by Toolmaker51 View Post
    With some spare time; I'll make up funny labels for all those handwheels. I count 7...Sure, they're for mirror alignment, but that's boring.
    It's a refractor so mirror alignment isn't much of a problem. (The components that always work flawlessly are the ones that aren't there.) Regardless, I'm very impressed by the ability to precision grind a 40 inch lens back in those days.

    You've got me wondering what is being controlled with all those ship wheels. I suspect most of them are controlling mechanical rather than optical properties of the instrument.

    More on the Yerkes Observatory here...

    https://en.wikipedia.org/wiki/Yerkes_Observatory
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  12. #118
    Jon
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    Avery 40-80 tractor. 1917.

    Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg


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  14. #119
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    Fageol heavy-duty tractor and trailers. 1918.

    Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg


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  16. #120
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    Seems trailer chassis have a LOT of plumbing, quite similar to the tractor.
    Looks like the boxes are capable of side dump? Latches at the bottom, hinges atop.
    And I'd want to be the fly on wall, for sales pitch on [non-existant] forward and starboard visibility. "Well sir, good point; but top speed is only 8mph, left hand turns are easy, and texting hasn't been invented yet."
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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