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Technical What is it?

Discussion in 'The Hokey Ass Message Board' started by grimmfalcon138, Aug 4, 2017.

  1. grimmfalcon138
    Joined: Jan 14, 2010
    Posts: 164

    grimmfalcon138
    Member
    from az

    Hey guys, I recently acquired this tachometer. It's pretty obvious by the low rpm's and the rubber nub on the end its not automotive. Or is it? Any idea of what this would have been used for? Thanks in advance. 20170804_175243.jpg 20170804_175251.jpg
     
  2. wheeler.t
    Joined: Oct 8, 2010
    Posts: 282

    wheeler.t
    Member

    I've got the same one and I've heard it's for tool rpm. Never really looked much into, got it for a dollar and looks good on my shelf


    Sent from my iPhone using H.A.M.B.
     
  3. Budget36
    Joined: Nov 29, 2014
    Posts: 6,717

    Budget36
    Member

    My Dad had a few left over from back in the day,he used them to set up the correct RPM's for compressors, etc.
     
  4. We used it for checking the PTO on farm equip. We had one on the farm to make sure the machines ran at the right RPM.
     

  5. grimmfalcon138
    Joined: Jan 14, 2010
    Posts: 164

    grimmfalcon138
    Member
    from az

    Awesome! Thanks for the fast response guys. It'll probably be a shelf decoration for me.
     
    Montana1 likes this.
  6. The nicer ones are/were used by machinists and came with different tips for dimpled, flat, etc. surfaces. It also could come with a disc for measuring speeds on belt operated equipment.
     
  7. utahdodge
    Joined: Sep 13, 2008
    Posts: 203

    utahdodge
    Member

    I got mine from an old miner who used it on his stationary engines that ran pumps for his mining sluice.


    Sent from my iPhone using H.A.M.B.
     
  8. Mike51Merc
    Joined: Dec 5, 2008
    Posts: 3,856

    Mike51Merc
    Member

    My dad was an elevator mechanic. I've got a couple of them (including an unused new SW in the original can) that were used to measure electric motor rpm.
     
  9. BamaMav
    Joined: Jun 19, 2011
    Posts: 4,974

    BamaMav
    Member
    from Berry, AL

    Yep, used to measure shaft RPM speeds. Neat thing is it works both clockwise and counterclockwise. See them on eBay all the time.
     
  10. unkamort
    Joined: Sep 8, 2006
    Posts: 1,014

    unkamort
    Member

    I have one from the 30's, gifted to me from the Stationary Engineer at the Ferry Building in SF in the 70's. He said it was used to verify pump shaft speed. I'll try to get a pic up... It really is a beautiful piece.
     
  11. I have one (in the original can) that I use for electric motor or shaft RPM.
     
  12. bct
    Joined: Apr 4, 2005
    Posts: 3,098

    bct
    Member

    Just bought one yesterday. For my micro hydro project. Wait a sec and I can give you the instructions
     
  13. bct
    Joined: Apr 4, 2005
    Posts: 3,098

    bct
    Member

  14. Gray Ford
    Joined: Oct 18, 2008
    Posts: 491

    Gray Ford
    Member
    from Illinois

    Does anyone know if the drive tip, ( #96798), are still available as a repair part ?? All of mine are worn out ....
     
    Last edited: Aug 5, 2017
  15. TagMan
    Joined: Dec 12, 2002
    Posts: 6,150

    TagMan
    ALLIANCE MEMBER

    I have a similar one I use on my old (1947) 13"x 60" South Bend lathe.
     
    Montana1 likes this.
  16. eaglebeak
    Joined: Sep 17, 2007
    Posts: 1,195

    eaglebeak
    Member

    There was a wheel that clipped on the shaft and we used them to measure the speed of elevators. We just held it against the drive sheave in the machine room and calculated the speed.
    Elevator mechanic from Local 90 and Local 82.
     
  17. bct
    Joined: Apr 4, 2005
    Posts: 3,098

    bct
    Member

    Stewart Warner
    1320 Goodyear Dr.
    El paso Texas
    79936
    Is the information on the packaging.
     
  18. paleot
    Joined: Aug 29, 2011
    Posts: 226

    paleot
    Member
    from louisiana

    Tip on mine wore out, I used a large vacuum plug that fits the shaft.
     
    Budget36 likes this.
  19. unkamort
    Joined: Sep 8, 2006
    Posts: 1,014

    unkamort
    Member

    With apologies to the OP... I think these things are neet! Right in there with some of the oldest stuff I have PIC00003.jpg PIC00005.jpg PIC00004.jpg
    (sheesh... Haven't had the camera out since I retired. A little lens clean may be in order)
     
    bct likes this.
  20. Phillips
    Joined: Oct 26, 2010
    Posts: 1,344

    Phillips
    ALLIANCE MEMBER

    [​IMG]

    I have my Dad's still in the original can. Used to check shaft speed on combines.


    Sent from my iPhone using The H.A.M.B. mobile app
     
    Montana1 and bct like this.

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