Supports – Brackets – Shelf or scaffold type
Patent
1987-05-14
1989-09-26
Britts, Ramon S.
Supports
Brackets
Shelf or scaffold type
248236, 248241, E04G 308
Patent
active
048694517
ABSTRACT:
A shelf is provided for use in combination with a window having a window sill formed of a planar rectangular body having the rear edge adapted to rest on the window sill adjacent the window. Bracing means are provided for supporting the body at a level with the window sill, by creating at least one slot extending perpendicularly to its rear edge of the body into which and from which a bearing member is freely suspended. The bearing member has detents at the upper end which cause the member to slideably engage with the surface of the body so as to restrict the complete axial passage through the slot. A connecting rod is detachably secured at one end to the lower end of the bearing member and at its opposite end to the front end of the upper surface of the body. The connecting rod has a predetermined length wherein the bearing member is simultaneously extended by its full axial length from the body and is pressed against the front edge of the window sill and forms a fixed right triangle.
REFERENCES:
patent: 262508 (1882-08-01), Thomson
patent: 438280 (1890-10-01), Wright
patent: 510194 (1893-12-01), Sellers
patent: 687371 (1901-11-01), Dreisbach
patent: 798683 (1905-09-01), Ketteman
patent: 1224127 (1917-05-01), Bartlett
patent: 1611649 (1926-12-01), Laurita
patent: 1748207 (1930-02-01), Clough
patent: 2916245 (1959-12-01), Williams
Britts Ramon S.
Chotkowski Karen J.
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