Fire escape – ladder – or scaffold – Ladder – With hook or grab
Patent
1998-10-15
2000-04-04
Stodola, Daniel P.
Fire escape, ladder, or scaffold
Ladder
With hook or grab
182107, E06C 136
Patent
active
060449306
ABSTRACT:
A stabilizing scaffold bracket for a ladder or the like. The preferred embodiment of the present invention configured to affix a ladder to a scaffold in a stable, yet removable fashion, the apparatus of the invention including first and second aligned plates spaced by a spacer bar, the plates having first and second ends, the first end of the plates having formed therein an upper hook member to engage a horizontal bar of the scaffold, the second end of the plates having formed therein a lower hook member configured to engage the horizontal rung of a ladder, the second end further including an upper engagement member to engage the lateral supports of the ladder. Further provided are first and second pivotal cams to removably, yet firmly, secure the unit to the scaffold, once installed.
REFERENCES:
patent: 494868 (1893-04-01), Kelly
patent: 987399 (1911-03-01), Rashkovskv
patent: 1341198 (1920-05-01), Ruple
patent: 1879244 (1932-09-01), Hoffman
patent: 2142651 (1939-01-01), Michelson
patent: 2554675 (1951-05-01), Magnetti
patent: 4231448 (1980-11-01), Jensen
patent: 5054581 (1991-10-01), Henson
patent: 5078532 (1992-01-01), Williams
Stodola Daniel P.
Thompson Hugh B.
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