Fire escape – ladder – or scaffold – Safety device for ground-supported ladder
Patent
1976-04-12
1977-03-15
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Safety device for ground-supported ladder
182172, E06C 536, E06C 742
Patent
active
040119262
ABSTRACT:
Stepladders having good lateral stability comprise a pair of channel members of fixed length pivoted at their top end to the side rails of the front ladder section to swing between a closed position and an extended position. The bottom ends of each channel member carries a foot member which always extends below the bottom end of the front section side rails so that the front section is supported in use of the ladder exclusively upon said foot members and not upon the bottom ends of the side rails.
REFERENCES:
patent: 3508628 (1970-04-01), Conrad
patent: 3933221 (1976-01-01), Sorenson
Larson Clayton E.
Lemp Edwin H.
Machado Reinaldo P.
Palmer Carroll F.
White Metal Rolling & Stamping Corporation
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