Supports – Stand – Plural leg
Patent
1991-01-07
1992-01-07
Foss, J. Franklin
Supports
Stand
Plural leg
182153, F16M 1138
Patent
active
050783521
ABSTRACT:
The foldable sawhorse comprises a two-by-four wooden work member supported in a sheet metal channel near each of its ends. The channels are supported by two tubular leg assemblies pivotally attached to the channels. The pivotal attachments comprise an eye extending from the bottom of each channel and passing through holes in the walls of the legs of the leg assemblies. Each leg assembly comprises two legs and a base; the legs are flattened in crossection at one of their ends and welded to the base near its ends with the long dimension of the flattened section parallel to the axis of the base. The center portions of the bases are raised a distance equal to about 1/8 the lengths of the bases and are interconnected by a strap which determines the angles between the legs when the sawhorse is unfolded. A lock is provided to prevent inadvertent folding of the leg assemblies toward each other. It comprises a flat rectangular part with two L-shaped slots located such that one leg of each slot is close and parallel to the ends of the part and the other legs extend toward each other and are close and parallel to the bottom edge of the part. The part is attached by collared fasteners to two of the legs near their pivoted connection to a channel such that when the leg assemblies are unfolded the lock part is allowed to move so that the collars of the fasteners are in the slot portions parallel to the ends of the part, preventing the sawhorse from being folded until the lock part is manually lifted to allow the fasteners to move toward each other in the slot portions parallel to the bottom edge of the lock part.
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Foss J. Franklin
Jenny Robert W.
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