Jaw assembly for lathe chuck

Details Jaw assembly for lathe chuck Jaw assembly for lathe chuck

1988-02-16

1989-08-29

Weidenfeld, Gil

Chucks or sockets

Radially reciprocating jaws

Jaws

279 15J, B23B 3110

Patent

active

048610488

ABSTRACT:
A lathe chuck includes three jaws each comprising a reciprocating jaw member to which an indexible, hexagonal, soft metal clamping member is detachably secured. Each jaw member has a raised portion which engages in a recess in the underside of the clamping member. Each jaw member also has an upright pin located at a leading edge of the jaw member, which engages in one of six slots formed in the peripheral surfaces of the recess and each aligned with a respective corner of the clamping member, thereby providing correct indexing of the clamping member.
In another embodiment of the invention, two oppositely-facing leading edges are provided, so that they can be used for clamping against the inner surface of a tube or the outer surface of a bar, respectively.

REFERENCES:
patent: 1261265 (1918-04-01), Miller
patent: 2896958 (1959-07-01), Straus
patent: 2950117 (1960-08-01), Walmsdey
patent: 3179430 (1965-04-01), Zierden
patent: 4029325 (1977-06-01), Rohm

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