Importance

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Abstract

Pin lock assemblies are provided for a stationary vise jaw of a double vise two support surfaces of the vise rails. Each pin lock assembly has a pin housing that is threaded into a first bore in the respective vise rail, and which seats in a known position. Each pin housing has an outer end with a pair of oppositely facing generally conical surfaces, one of which mates with a conical surface at an outer end of the aligned first bore in the vise rail, and the other of which is an outer cone surface extends above the vise rail support surface. A slotted expanding sleeve is mounted over the outer end of the respective housing and has a mating, inwardly tapered interior cone surface to mate with the outer cone surface of the housing. Each pin lock assembly further includes a separate cone end collar that acts against a cone surface at an outer end of the slotted sleeve to cause the slotted sleeve to expand. The stationary vise jaw has a pair of bores that fit over the slotted sleeves of the aligned pin lock assemblies when the sleeves are not expanded, and when the stationary vise jaw is seated on the rail support surfaces, the stationary vise jaw is clamped tightly in place as each slotted sleeve is expanded and the vise jaw is forced against the rail support surfaces.

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First Claim