Adjustable scaffold bracket

Details Adjustable scaffold bracket Adjustable scaffold bracket

1976-07-19

1978-08-01

Foss, J. Franklin

Supports

Brackets

Shelf or scaffold type

182133, A47B 4700

Patent

active

041038568

ABSTRACT:
A plurality of scaffolds stacked one above the other on a support and each scaffold supported on two laterally spaced self-locking scaffold brackets attached to the supports by load-activated locks. A hoisting mechanism is selectively connected to the scaffolds in such a way as to lift each of the scaffolds up sequentially into its final position. Mechanical jacks connected to the load activated locks are used for final small adjustment of the positions of the scaffolds. The jacks are disabled without removing them during the time that the scaffolds are being moved up or down.

REFERENCES:
patent: 755809 (1904-03-01), Stoolfire
patent: 1416296 (1922-05-01), Hoitsma
patent: 1441806 (1923-01-01), Hoitsma
patent: 1516564 (1924-11-01), Barthelemy et al.
patent: 1731052 (1929-10-01), Laborda
patent: 2038899 (1936-04-01), Hoitsma
patent: 2216912 (1940-10-01), Hoitsma
patent: 2240682 (1941-05-01), Weinstein
patent: 2342427 (1944-02-01), Riblet
patent: 3473774 (1969-10-01), Riblet
patent: 3880256 (1975-04-01), Couris
patent: 3970277 (1976-07-01), Riblet

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