Building structures

Details Building structures Building structures

1987-08-11

1988-09-27

Friedman, Carl D.

Static structures (e.g., buildings)

Inclined top cover

On existing roof

52639, 52729, 403170, 403295, E04C 330, E04C 340, E04B 132, E04B 158

Patent

active

047731923

ABSTRACT:
A fixing bracket 5 in a roof construction is a metal sheet with two parallel grooves 39, 40 pressed therein to protrude as ribs from the other side of the sheet. each groove extending from one edge of the sheet to another with two straight end portions and a central part-circular central portion. The outer edge of the sheet is concentrically part-circular and the inner edge is folded up at 38. Such a bracket, or a pair of such brackets back-to-back with grooves 39, 40 protruding, can connect cold-rolled channels 1,2 e.g. as used for the uprights or rafters of a portal frame structure, with compatible longitudinal base grooves. The channels are again usually used in back-to-back pairs and the brackets are bolted within these back-to-back pairs of channels. The included angle can be from 90.degree.-135.degree. for eaves brackets, or from 90.degree.-180.degree. for ridge brackets.

REFERENCES:
patent: 649352 (1900-05-01), Rector
patent: 1893636 (1933-01-01), Ridgway
patent: 2180317 (1939-11-01), Davis
patent: 3184012 (1965-05-01), Fujishima et al.
patent: 3785108 (1974-01-01), Satchell
patent: 3786612 (1974-01-01), Baker
patent: 4078341 (1978-03-01), Peterson et al.
patent: 4342177 (1982-08-01), Smith
patent: 4551957 (1985-11-01), Madray

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