Motion control apparatus

Horizontally supported planar surfaces – Horizontally adjustable – Concurrent horizontal and vertical movements

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Details

108146, A47B 1100

Patent

active

054760496

ABSTRACT:
Motion control apparatus is provided for permitting movement of a slidable member in one direction relative to a fixed support while releasably preventing movement in the opposite direction or for releasably preventing movement of the slidable member in either direction using one or more locking arms pivotally mounted on the slidable member and resiliently urged into the locking position with a release rod slidably mounted on the slidable member to overcome the resilient urging to permit sliding movement of the slidable member. Also, movement preventing apparatus is provided to hold at least one locking arm in a non-locking position.

REFERENCES:
patent: 836303 (1906-11-01), Christenson
patent: 1235613 (1917-08-01), Vandergrift
patent: 1372456 (1921-03-01), Roetter
patent: 3188986 (1965-06-01), La Vigne
patent: 3314384 (1967-04-01), Mann et al.
patent: 3488026 (1970-01-01), Wallace et al.
patent: 4054190 (1977-10-01), Wilkes
patent: 4664549 (1987-05-01), Lundqvist
patent: 5265542 (1993-11-01), Allard et al.

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