Fire escape – ladder – or scaffold – Putlog or spacer
Patent
1978-10-23
1979-08-14
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Putlog or spacer
182 82, 182107, 182206, 248210, E06C 748
Patent
active
041642694
ABSTRACT:
A safety bracket for securing a ladder in place against a building structure, the bracket having two extending arm members interconnected in crossing relation intermediate the respective ends thereof with each arm member being slidable with respect to the other. Each arm member includes an intermediate portion and two end portions pivotally joined to the intermediate portion, the two end portions of each arm member including, respectively, a hook shaped portion which may be hooked around an upright member of a ladder and an eyelet for receiving therethrough a projecting member secured to the building structure.
REFERENCES:
patent: 396552 (1889-01-01), Elsbury
patent: 437934 (1890-10-01), O'Brien
patent: 1937608 (1933-12-01), Tobin
patent: 3472338 (1969-10-01), Weidman
E. L. Hilts & Company
Machado Reinaldo P.
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