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Thread: Vintage work crew photos

  1. #1381
    Supporting Member Frank S's Avatar
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    Quote Originally Posted by Ralphxyz View Post
    and the reason for the tem "pig iron" is?
    Pig Iron is the result of the first smelting of ore very high in carbon and silica plus other impurities back in the day it was molded in a long trench with several out cropping ingot sized molds in the sand or dirt. the long trench or runner was called the sow which serves the same purpose as sprew runners in molds . once the raw iron had cooled the ingots were broken off from the sow or runner hence the term pig iron. these pigs would be heated again to white hot now this is called a sponge and the sponge is beaten and beaten to remove more of the impurities then reheated again in a cauldron until liquified this would be poured into molds and now once cooled would be cast iron or while being heated certain elements could be added to make steel which would be hammered and hammered while cooling the now steel can be heated again and forged or forced through dies to form shapes or long bars which could be rolled into sheets
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  3. #1382
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    Cork-screw tails or interesting little tale, I knew someone would reveal this.
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  4. #1383
    Supporting Member Ralphxyz's Avatar
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    So in #1378 are they standing on the Sow?

  5. #1384
    Supporting Member VinnieL's Avatar
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    Pig iron is simply a crudely refined iron ore that contains lots of impurities. It is made by melting down the ore and pouring it into ingots or "pigs" of iron to make it easier to transport . The original smelting of the iron does remove much of the bulk and some impurities, but it must be further refined before it is useable.

  6. #1385
    Supporting Member baja's Avatar
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    Quote Originally Posted by Ralphxyz View Post
    and the reason for the tem "pig iron" is?
    The traditional shape of the molds used for pig iron ingots was a branching structure formed in sand, with many individual ingots at right angles[3] to a central channel or "runner", resembling a litter of piglets being suckled by a sow. When the metal had cooled and hardened, the smaller ingots (the "pigs") were simply broken from the runner (the "sow"), hence the name "pig iron". From Wikipedia

  7. #1386
    Jon
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    Dayton, Ohio, 1904. "Tool room of the National Cash Register Co." A case study in belt-and-pulley power transmission. George R. Lawrence Co.
    Credit to mklotz for finding this image.

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


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  9. #1387
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    What struck me right away is that with all that intricate, small work, no one is wearing eyeglasses. Maybe too early in history for them to be that common?

  10. #1388
    Supporting Member IntheGroove's Avatar
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    I wonder what it would sound like in that shop...

  11. #1389
    Supporting Member Hoosiersmoker's Avatar
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    Just noticed that fine pair of legs in the right foreground and got to looking. Sure looks like 3 or 4 South Bend Lathes!

  12. #1390
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    Yeh I thought about safety glasses too, where was OSHA when you need them.

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