Fire escape – ladder – or scaffold – Self-sustaining – Ladder
Patent
1998-04-20
1999-10-05
Stodola, Daniel P.
Fire escape, ladder, or scaffold
Self-sustaining
Ladder
182 13, 182 36, 182 38, 182 84, A63C 508
Patent
active
059609060
ABSTRACT:
A ladder support system, comprising a free-standing frame having an upper and lower horizontal member, and a ladder that is supported on the upper horizontal member and lower horizontal member. The frame further has a pair of ends which each have two legs joined by a top joint which forms an acute angle between the two legs which are both perpendicular to the upper horizontal member, which is also attached to the top joint. The upper horizontal member is parallel to the lower horizontal member. The ladder has wheel assemblies which engage the upper horizontal member and lower horizontal member so that the ladder may move laterally along the frame. A movement mechanism comprises a pair of end pulleys located at the ends, and a rope having a pair of rope extremities. The rope is threaded through the end pulleys with the rope extremities available to a workmen on the ladder, so that the workmen can move the ladder laterally along the frame without climbing down the ladder.
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Lev Bruce A.
Stodola Daniel P.
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