Track-mounted support

Details Track-mounted support Track-mounted support

1985-01-25

1986-07-01

Foss, J. Franklin

Supports

Stand

Plural leg

108117, 2481882, 2481886, 272144, F16M 1138

Patent

active

045975531

ABSTRACT:
A load is supported by three subjacent parallel tracks. A u-shaped leg structure coupled to pivots fixed to the outer tracks defines a locus of intersection between swinging arc of the u-shaped leg structure and the ground. A third leg pivots from a slider selectably disposed along the central third track, and also pivots at its bottom end to the u-shaped leg structure, defining a range of loci at the ground which position the tracks upwardly sloping, downwardly sloping or horizontal with respect to a fulcrum. The support is mounted to the tracks by captive sliders, some fixed, others slideable between captive stops.

REFERENCES:
patent: 82360 (1868-09-01), Smith
patent: 1806091 (1931-05-01), Simpson
patent: 2676680 (1954-04-01), Kindorf
patent: 3136269 (1964-06-01), McDonald
patent: 3610425 (1971-10-01), Madey
patent: 4143602 (1979-03-01), Brunn

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