Supports – Suspended supports – Adjustable
Patent
1979-07-09
1983-02-22
Foss, J. Franklin
Supports
Suspended supports
Adjustable
248412, B42F 1300
Patent
active
043745814
ABSTRACT:
A vertically adjustable suspension support unit having a vertical cylinder and a brake element slidable in the cylinder. The brake element comprises a pair of collars located coaxially in the cylinder with opposed bevels providing a raceway for spherical bearings, the angle of each bevel being between 35.degree. and 70.degree., preferably 45.degree., with respect to a transverse plane of the cylinder normal to its axis. The collars are connected to a grip and are movable towards and away from one another to clamp or release the brake element in the cylinder, the brake element being axially rotatable while clamped.
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patent: 481814 (1892-08-01), Overholt
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patent: 2453855 (1948-11-01), Oliver
patent: 2453855 (1948-11-01), Oliver
patent: 2460997 (1949-02-01), Myers
patent: 2616648 (1952-11-01), Budreck
patent: 2658777 (1953-11-01), Rauglas
patent: 2938699 (1960-05-01), Bellmann
patent: 3048360 (1972-08-01), Foley
patent: 3191904 (1965-06-01), Karapita
patent: 3321090 (1967-05-01), Greenstadt
patent: 3807574 (1974-04-01), Lanza
patent: 4073456 (1978-02-01), Karapita
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