Ladder base plate apparatus

Details Ladder base plate apparatus Ladder base plate apparatus

1991-05-14

1992-01-07

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

E06C 746

Patent

active

050782312

ABSTRACT:
A base plate includes a plurality of plate members, each formed with abutting flanges that are in turn orthogonally oriented relative to one another to provide a continuous abutment surface for a plurality of ladder legs of an associated ladder. The structure includes pins directed through each corner of the free ends of the base plates, and may further be provided with tether lines, with a plurality of the tether lines utilizing adjusting means for fixedly anchoring the ladder to the plate structure. Further refinement of the organization includes the flanges in hingedly intercommunicating relationship relative to one another to permit interfolding of the structure for ease of transport and storage.

REFERENCES:
patent: 776446 (1904-11-01), Williamson
patent: 2868427 (1959-01-01), Hess
patent: 2962112 (1960-11-01), Ramsberger
patent: 3435912 (1969-04-01), Scherer
patent: 4669576 (1987-06-01), Jones

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