Guess the object

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  • graham.
    graham. Posts: 862
    natrix wrote:
    Bound to be something to do with opticians, although it looks like a testicle stamping device to me.

    Why is it bound to be something to do with opticians?
    It's not for stamping testicles but I'm sure it could be adapted.
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  • gingaman
    gingaman Posts: 576
    edited January 2015
    An ancient surface grinder

    edit: for optics?
  • graham.
    graham. Posts: 862
    Ancient yes, surface grinder no.
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  • shortcuts
    shortcuts Posts: 366
    Interesting. ebay :D
  • graham.
    graham. Posts: 862
    shortcuts wrote:
    Interesting. ebay :D
    ? :?
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  • natrix
    natrix Posts: 1,111
    Graham. wrote:
    Why is it bound to be something to do with opticians?

    Because quite a few objects on here have been optician related and it looks as if a lense would fit in the 'cup' thing. (A testicle would also fit in there though - is it a testicle tattoing device??)
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  • graham.
    graham. Posts: 862
    natrix wrote:
    Graham. wrote:
    Why is it bound to be something to do with opticians?

    Because quite a few objects on here have been optician related and it looks as if a lense would fit in the 'cup' thing. (A testicle would also fit in there though - is it a testicle tattoing device??)

    Hells teeth, your close.
    What does it actually do?
    Look at the controls and mechanisms and work it out.
    I'll post another picture in a minute.
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  • graham.
    graham. Posts: 862
    Another view.

    DSCF6548_zpsf87a78e5.jpg

    The oval shaped thig you can see on the right (under the chrome connecting rod things) is interchangeable.

    Edit. Not testicle related.
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  • veronese68
    veronese68 Posts: 27,810
    Graham. wrote:
    Edit. Not testicle related.
    Thank the Lord for that.
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  • shortcuts
    shortcuts Posts: 366
    Graham. wrote:
    shortcuts wrote:
    Interesting. ebay :D
    ? :?
    I sent you a PM but it's still in my outbox as you appear to have a full inbox?
  • graham.
    graham. Posts: 862
    shortcuts wrote:
    Graham. wrote:
    shortcuts wrote:
    Interesting. ebay :D
    ? :?
    I sent you a PM but it's still in my outbox as you appear to have a full inbox?
    Just seen it. Reply sent. :D
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  • capt_slog
    capt_slog Posts: 3,973
    It looks as if it cuts a groove or slot, and as others have said, I suppose it does this in a lens.

    Perhaps for rimless glasses where the bridge and arms fit in?


    The older I get, the better I was.

  • graham.
    graham. Posts: 862
    'Fraid not Capt'.

    "The oval shaped thing you can see on the right (under the chrome connecting rod things) is interchangeable."
    Is about as big a clue as I can give.
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  • laurentian
    laurentian Posts: 2,548
    When in operation, would that oval thing rotate?
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  • Anonymous
    Anonymous Posts: 79,667
    It looks like the oval thing then moves the turny thing which rotates the 'cutter' thing. The oval seems to decide how far to the right the cutty thing can go.

    Does it cut or does it draw?
  • graham.
    graham. Posts: 862
    laurentian wrote:
    When in operation, would that oval thing rotate?

    Indeed it does.
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  • graham.
    graham. Posts: 862
    coriordan wrote:
    Does it cut or does it draw?
    Well, sort of both! :wink:
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  • Anonymous
    Anonymous Posts: 79,667
    it etches circles into glass?
  • graham.
    graham. Posts: 862
    coriordan wrote:
    it etches circles into glass?

    Sorry. Need more detail! :twisted:

    Edit. And what makes you think "Circles"?
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  • Anonymous
    Anonymous Posts: 79,667
    Not sure if circles (depends if left hand 'holder' rotates). Actually more likely to be straight lines, as the 'etcher' goes back and forth as per the oval shape rotating, pushing the right hand wheely thing back and forth
  • pinno
    pinno Posts: 52,303
    Does it just simply cut the lens out of a larger piece?
    seanoconn - gruagach craic!
  • Giraffoto
    Giraffoto Posts: 2,078
    My guess is that it cuts a circular lens blank to the shape of a spectacle frame, which is almost certainly what Mr. 001 was getting at above ^
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  • laurentian
    laurentian Posts: 2,548
    If the oval thing rotates, could it act as a kind of cam that contacts with the frame of the "etcher" to move it. The frame would be returned to position by the spring. As the whole thing also moves backwards and forwards (see slots in casing) my guess is that it would etch wavy lines or zig zags on the glass. Different sizes of "oval thing" would create different sizes of zig zag or wavy line.

    I have no idea what this would be used for although do remember some physics experiment using etched glass to demonstrate refraction or something (physics was a new science back then).
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  • Anonymous
    Anonymous Posts: 79,667
    That's what I thought. However I don't think that the 'holder' on the left rotates, so it would only cut a straight line, with the length of the line dictated by the size of the oval thing
  • graham.
    graham. Posts: 862
    Yep. You're all on it but Mr 001 was first to hit the nail on the head.
    The oval shape on the right determines the final shape and is interchangeable with various shaped "Formers".
    The dial on the right connects with the former (acting as a cam) and determines the final size.
    The thumb press (bottom left) brings the cam into contact with the former and the cutter/diamond into contact with the "Uncut" lens. The winder on the right rotates the former and the lens and scribes the shape onto the lens.
    The waste is then removed (This was hilariously described as "Hand Shanking"!) and the lens was hand finished on a slowly rotating water fed sandstone wheel.

    Those were the days! :|
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  • pinno
    pinno Posts: 52,303
    Oh bollox. From now on, I am going to have to make references to marbles only.
    seanoconn - gruagach craic!
  • pinno
    pinno Posts: 52,303
    It is big. This is not a unique piece of engineering. They can be anything from 1m to 2m in length.

    pic1374l.jpg
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  • Manc33
    Manc33 Posts: 2,157
    Water pump.
  • pinno
    pinno Posts: 52,303
    No.
    seanoconn - gruagach craic!
  • diplodicus
    diplodicus Posts: 722
    Are they used in the oil industry?

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