Couple of things to identify

  1. Robben77

    Robben77 Member

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    19
    Location:
    England suffolk
    IMG_0642.JPG Anyone know what these are please?
     
    • IMG_0644.JPG
  2. rory1

    rory1 Forum Supporter

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    611
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    Macclesfield
    Bottom ones are for stacking slip gauges together

    Top one looks to be some sort of v- block
     
  3. Seadog

    Seadog Forum Supporter

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    903
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    NE London - UK
    Rubert make precision surface finish measuring equipment. Don't know if that helps? :dontknow:
     
  4. Robben77

    Robben77 Member

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    19
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    England suffolk
    IMG_0643.JPG Cheers thanks, what about this?
     
  5. penfold

    penfold Ambassador plenipotentiary

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    Argyll and Bute, God's own country.
    That's a tachometer; measures rpm when you press the stylus at the top into the end of a spinning shaft.
     
  6. Migmac

    Migmac Forum Supporter

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    1,289
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    Kintyre. Scotland
    Pure guess for the top one, looks to me like it holds round items and the ball bearings allow for easy turning of the round item
     
  7. CKJDJK

    CKJDJK Member

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    Northumberland
    Tachometer should have changeable rubber ends to measure either shaft speed (cone adaptor) or run on outer diameter using the roller adaptor to calculate the RPM of parts that the cone centre adaptor wont fit.
     
  8. Seadog

    Seadog Forum Supporter

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    903
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    NE London - UK
    like this Smith's one that I was given last year

    20160212_163613.jpg
     
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  9. scott0031 Member

    Messages:
    772
    England Kent
    The top pic is a v block the guys are correct, its really a inspection grade and no use for machine shop use. I'm not sure if the balls are designed to rotate or very simply give minimal point contact for rotation of part to check for concentricity effectively removing any means of high spots or foreign bodies giving false readings.
     
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  10. sardine

    sardine Member

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    2,224
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    You won't want that tacho, it'll just get in your way, best send it to me pronto.
     
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  11. RonA

    RonA specialist in repairing sealed for life equipment

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    386
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    Stockton on Tees, UK
    Ditto used too use an identical unit (when working) for checking for belt slippage on very large multi belt driven furnace waste gas fans.
    RonA
     
  12. Pete.

    Pete. Member

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    5,105
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    Kent, UK
    That tacho is unusual in that it has a much higher range than usual. Never seen a 50,000 rpm one before.
     
  13. Kent

    Kent Member

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    Bowland, Lanacshire,UK
    It's for measuring run out on a turned component. It's a consentricity gauge it's used with a dti mounted onto the other end and you spin on the bearings and watch the dti move through high and low points
     
  14. The_Yellow_Ardvark

    The_Yellow_Ardvark If in doubt ask.

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    Wiltshire UK
    Westinghouse Rail had small servo/ Syncro motors running at 20,000 to 30,000 ish RPM on the London underground.
    They would run up to a constant speed and from that, via electronics you got a range off timing signals.

    They then were replaced by crystal oscillators to give a frequency out put for timings. They now are replaced by digital clocks.

    In 2010 Westinghouse, now invensys rail, part of Seimens were still making them as they are still fitted to some sections of the Underground network.
     
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  15. scott0031 Member

    Messages:
    772
    England Kent
    I know! Toolmaker!
     
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  16. Tigman

    Tigman Forum Supporter

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    Watford UK
    Ive got one of those Tacho things but its a lot older looking than that one !
     
  17. Robben77

    Robben77 Member

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    19
    Location:
    England suffolk
    Thanks everyone for the replys, very informative!
     
  18. normspanners Member

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    6,853
    northwales
    You hav'nt now either !! sudduv gone to specsavers :D
    that is like my low speed one




    But now you have !! mine! the ones in red boxes are
    20170219_232524.jpg
     
  19. Pete.

    Pete. Member

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    5,105
    Location:
    Kent, UK
    Errm, check out post #4 Norm.
     
  20. normspanners Member

    Messages:
    6,853
    northwales
    :clapping:UUUPS thats with me goin to scrolsavers :ashamed: scrolin upwards not downwards
    :waving:anyway it IS your fault,
    coz you didnt put which tacho:confused: -----so there!:dontknow:

    Startin to sound like my missus in an argument :(

    (In my defence my lawd--------- my scroll wheel is a pain if I push slightly too hard it goes into auto scroll so easily it is like a rocket bang and the page is gone, to the bottom and sometimes I end up scrolin upwards coz I'm lazy:ashamed:)
     
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