Thursday, July 18, 2013

Set 502

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2923. 10" long:

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2924. 100' long, take a look at Neatorama for more guesses and a chance to win one of their funny T-shirts.

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2925. Approximately 2-1/2" long:

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2926. 12" long:





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2927. About 6-1/2" long:





































2928. Around 30" long:

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Answers:




2923. A Selectron Semimatic slide changing device for a projector, patent number 2,590,492:

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2924. This is the switch matrix for the old Voice of America towers that were located next to I-75 just north of Cincinnati, Ohio. It's basically a giant switch box for the antennas.

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2925. This is most likely for cutting the insulation on cable:

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2926. An AJC Adjustable "Speed" Roofing Hatchet





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2927. This is probably a can piercer:





































2928. A spoke tenoning machine, similar to patents 622,794 and 640,895, it's missing the hollow auger that would have been mounted onto the end of the crank shaft. The hollow auger would have been adjusted to cut a tenon of the correct diameter.

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Last week's set is seen below, click here to view the entire post.








More discussion and comments on these photos can be found at the newsgroup rec.puzzles.

7 comments:

  1. 2923
    Reversal film slide excange mechanism for slide cassettes..
    B.

    ReplyDelete
    Replies
    1. I agree--Bell and Howell--maybe.

      Delete
    2. Agree on the slide projector mechanism, but I think it might have been from an Argus.

      Delete
  2. 2923 is a Slide Changer for a projector

    2924 is a very odd electrical switch yard or substation of some kind

    ReplyDelete
  3. 2924 - Lightening test station
    2925 - Wire insulation scorer for stripping
    2926 - Roofing hammer
    2928 - Buggy or wagon axle threader

    ReplyDelete
    Replies
    1. I agree. (2928 might be a boring tool....)

      Delete
  4. 2927 - Hole punch for a can similar to Pet milk, these cans had no lip for a conventional can opener

    ReplyDelete