Clamping apparatus

Details Clamping apparatus Clamping apparatus

1987-07-30

1988-09-20

Watson, Robert C.

Work holders

Relatively movable jaws

With means for 'hold-down' component of force

269285, 269329, 411 13, B23Q 302

Patent

active

047719990

ABSTRACT:
In a clamping apparatus, a pressing member is moved on a base in a vertical and horizontal directions by rotation of a bolt. The bolt is provided with a longitudinal hole open end of which is covered by a window. A rod is placed in the hole so as to fix the inner end thereof to the inner end of the hole. A transparent holding member holding a colored fluid is sandwiched by the open side end of the rod and the window. When a tension stress is developed in the bolt, the open side end is far away from the holding member so that fluid covers the open side end.

REFERENCES:
patent: 3987699 (1976-10-01), Popenoe

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