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

  1. #521
    Unkle Fuzzy's Avatar
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    Flat glass is almost exclusively "Float Glass" now.

    Developed in the 50's, glass is molten on the surface of a pool of lead, tin, or other fairly low melt point metal, and drawn off as an extrusion.


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  3. #522
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    Very large tooling sheets. Ship bow plate etc, requiring extreme tensil strength.

  4. #523
    Supporting Member Ralphxyz's Avatar
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    Ship bow plate made from Float glass?? #521

    Ralph

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    Supporting Member McDesign's Avatar
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    The front fell off!

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    Is 2,000 F the temperature of the glass or is the temperature of the tin, because it seems awfully hot for tin.
    I think 2,000 F is the temperature of the glass when it starts to flow over the tin and it when gets pulled off at the end it has dropped below 1,200F and solidified. Unfortunately I have no idea of what temperature the tin is held.

  7. #526
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    Quote Originally Posted by McDesign View Post
    The front fell off!
    It fell into the ocean, clearly.

  8. #527
    Jon
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    Low type lever shear. Mesta Machine Company. 1905-1925.

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


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    carloski (Aug 22, 2021), jimfols (Aug 15, 2021), Toolmaker51 (Aug 21, 2021)

  10. #528
    Supporting Member marksbug's Avatar
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    wow what a chomper!!!

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    On its way to get a crank and rods...

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    Wonder how long that 4" x 4" holds up?

    Ralph

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