Work holders – Holder inserted within work aperture – Holder mounted for movement
Patent
1992-11-24
1994-05-03
Watson, Robert C.
Work holders
Holder inserted within work aperture
Holder mounted for movement
B23Q 100
Patent
active
053080491
ABSTRACT:
A jig (1) for holding a transmission casing (2)provided with boltholes (3) for mounting the casing to the jig comprises a pair of upright stanchions (4,5) coupled together via an extendible cross-bar (6). A first lateral extendible arm (13,14) is provided at the base of each stanchion, each first arm being rotatable about an axis passing longitudinally through the stanchion. A second lateral arm (21,22) is also provided at the base of each stanchion adjacent and parallel to the first arm and rotatable about the same axis, each of the first and second arms having a bracket (24,26) rotatably attached to an end of the respective arm. The brackets are arranged so as to lie substantially in the same plane, whereby boltholes (3) in different size casings (2) can be aligned with boltholes (28) provided in the brackets by appropriately extending the cross-bar and the first arms and by rotating the arms.
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