Horizontally supported planar surfaces – Horizontally adjustable – Concurrent horizontal and vertical movements
Patent
1978-06-12
1980-03-25
McCall, James T.
Horizontally supported planar surfaces
Horizontally adjustable
Concurrent horizontal and vertical movements
108 99, 108161, 248166, 312276, A47B 1100, A47B 8100
Patent
active
041944526
ABSTRACT:
Parallel links pivotally connect each end of a tabletop to a table base so that the top can be swung in level attitude elevationally and laterally relative to the base. A tie rod synchronizes the movement of links at opposite ends of the top to maintain such links in alignment for smooth swinging of the top. When the top is swung upward and outward from a position centrally of the table base, mechanism responsive to such swinging of the top automatically projects a stabilizing foot outward beyond the side of the base toward which the top moves, and such mechanism retracts such foot into the base when the top is swung downward and inward.
REFERENCES:
patent: 210031 (1878-11-01), Hawthorn
patent: 1956546 (1934-04-01), Froelich
patent: 2170098 (1939-08-01), Stephenson
patent: 2766088 (1956-10-01), Jackson et al.
patent: 2845114 (1958-07-01), Edwards
patent: 3195482 (1965-07-01), Whitfield
patent: 3288090 (1966-11-01), King
patent: 3322480 (1967-05-01), Barnstead et al.
patent: 3347184 (1967-10-01), Kiraly
patent: 3738727 (1973-06-01), Race et al.
patent: 3926472 (1975-12-01), Evans
Carpenter Gregory A.
Crowther William H.
Beach Robert W.
Brown Ward
McCall James T.
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