Fire escape – ladder – or scaffold – With indicator – signal or alarm
Patent
1975-02-12
1976-06-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
With indicator, signal or alarm
182 66, E06C 504, E06C 534
Patent
active
039660176
ABSTRACT:
A working range indicating device for an aerial ladder truck is arranged so that the variable length and vertical angle of the ladder are mechanically detected and the detected values are indicated on a working range indicating board disposed at the operating stand by means of a single mechanically operable pointer. Merits and details of the construction will be made clear.
REFERENCES:
patent: 2772411 (1956-11-01), Cooper
patent: 3122125 (1964-02-01), Towne
patent: 3223249 (1965-12-01), Cady
patent: 3238521 (1966-03-01), Minogue
patent: 3566386 (1971-02-01), Hamilton
Maeda Kikuo
Tomimoto Takashi
Machado Reinaldo P.
Morita Pump Kabushiki Kaisha
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