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MEASURING INSTRUMENT

  • US 3,816,929 A
  • Filed: 11/15/1971
  • Issued: 06/18/1974
  • Est. Priority Date: 11/15/1971
  • Status: Expired due to Term
First Claim
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1. In a measuring instrument, a combination comprising support means, said support means including a housing;

  • a dial gauge mounted on said support means;

    a pair of spaced contacts mounted on said support means;

    a contact lever having two ends and being pivotally mounted on said support means at one end of said ends for pivoting movement in a first plane;

    a movable contact movable between said spaced contacts and being mounted at the other of said ends of said contact lever;

    elongated feeler means actuated by said dial gauge and slidably mounted on said support means for movement between first and second positions, said feeler means having an axis parallel to said first plane and being movable along said axis, and said feeler means including a cam follower;

    translating means between said feeler means and said movable contact for translating a large movement of said feeler means into a smaller movement of said movable contact, said translating means comprising a cam having a cam surface which engages said cam follower, said cam being pivotally mounted on said housing for pivoting movement in a second plane parallel to said first plane and said axis, and said cam being positioned between said feeler means and said contact lever;

    said first biasing means for maintaining said cam follower in engagement with said cam surface.

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