Horizontally supported planar surfaces – Folding – With vertical adjustability
Patent
1988-01-26
1989-03-28
McCall, James T.
Horizontally supported planar surfaces
Folding
With vertical adjustability
108111, 108115, 269289MR, 269910, A47B 300
Patent
active
048153958
ABSTRACT:
A tilt-top table is described having features that facilitate tilting a top frame between an upright storage and transport condition and a horizontal operative condition. The top frame is connected to a primary support platform and a secondary support brace by a linkage arrangement that facilitates independent pivotal motion of the secondary support brace and the tilt-top frame between upright storage and transport conditions and substantially horizontal, operative conditions. The secondary support brace will pivot from a location above and within the width dimension of the primary support platform to an outboard position, upright to receive and partially support the tilt-top frame when pivoted to the horizontal orientation. The secondary support brace, when pivoted to the outboard orientation, also situates the pivot axis for one set of legs of the linkage to facilitate progressive weight transfer of the tilt-top between the platform and secondary support braces as the top progresses from the upright to the horizontal orientation. The tilt-top frame and a workpiece thereon may be manually pivoted without the use of actuators or counterweights, between the upright storage and transport position and the horizontal operative position.
REFERENCES:
patent: 3598390 (1971-08-01), Armitage
patent: 4136622 (1979-01-01), Bue et al.
patent: 4164346 (1979-08-01), Sickler
patent: 4202278 (1980-05-01), Wadenhad
Bremner Glass Equipment Pty. Ltd. Brochure, p. 12.
"Handling Equipment for the Glass Industry", Perfect Tinning & Chemical Co., Inc. brochure, Lancaster, TX, p. 5, (date prior to 1/26/87).
McCall James T.
Wood's Powr-Grip Co.
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