Title: Positioning clamp

Abstract: A positioning clamp for holding a workpiece properly oriented with respect to a work station adjacent the clamp. The clamp disclosed releasably holds saw chain during an operation such as grinding of a cutter in the chain. The clamp is releasable to permit the saw chain to be advanced in steps along a channel defined between jaw margins in the clamp. These jaw margins include portions which face each other, and that come against opposite sides of the saw chain when clamping it, which are shaped to complement the shape of the rivet ends usually provided in saw chain to hold it together. One jaw member is mounted for pivotal movement toward and away from the other to effect clamping and release positioning through a ball pivot. The jaw members are biased toward each other to exert a clamping pressure, and selectively operable means is provided for swinging the jaw members away from each other to produce release.

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Inventors: Ogg, Dustin Lance (Milwaukie, OR, US)

Application Number: 520291
Filing Date: 1974-11-04
Publication_date: 1976-03-02
Assignee: Carlton Company (Portland, OR)
Primary Class(es): 269/100 76/80.5, 269/165, 269/237, 269/254CS, 451/365
Other Classes:
US Patent Ref:

1536310	May, 1925	Rothlisberger	269/238.
2821064	Jan, 1958	Nelson	269/254.
3175353	Mar, 1965	Coffey	269/254.
3855738	Dec, 1974	Guggenheim et al.	269/254.

Other Refs:
Primary Examiner: Smith, Al Lawrence
Assistant Examiner: Watson, Robert C.
Attorney: Kolisch, Hartwell, Dickinson & Stuart