Feed table with force reaction system

Conveyors: power-driven – With means to facilitate working – treating – or inspecting... – Means engaging conveyor or load on a conveyor to align load...

Reexamination Certificate

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C083S801000

Reexamination Certificate

active

07111720

ABSTRACT:
A feed table with force reaction system for counteracting clamping forces on a shuttle vise used to move a workpiece toward a machine tool. In a first embodiment, lever arms are attached to an upper guide rail between two vertical columns. A reaction actuator interconnects upper ends of the lever arms such that when actuated, a reaction force is applied to the vertical columns by lower ends of the lever arms to counteract clamping forces created by a clamping actuator attached to one of the vertical columns. In a second embodiment, lever arms are also used and interconnected at the upper ends thereof by a reaction bar. A reaction actuator is attached to a lower end of each of the lever arms to apply the reaction force. In third and fourth embodiments, a clamping force bar is positioned above the upper guide beam. A clamping actuator is attached to the clamping force bar such that clamping forces are not transmitted to the vertical columns.

REFERENCES:
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patent: 3504585 (1970-04-01), Harris
patent: 4179961 (1979-12-01), Harris
patent: 5099979 (1992-03-01), Kehrel
patent: 5353910 (1994-10-01), Harris et al.
patent: 5944477 (1999-08-01), Shill
patent: 6231036 (2001-05-01), Johnson et al.
patent: 6648120 (2003-11-01), Konieczny

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