Web ladder

Details Web ladder Web ladder

1978-12-11

1980-02-19

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Flexible

182 70, E06C 156

Patent

active

041890302

ABSTRACT:
This invention provides a collapsible web ladder in which a number of flat step members are connected to two flexible webs by virtue of T-shaped recesses in the ends of the step members. The flexible webs lodge in the recess portions corresponding to the cross-bars of the T's. Each web has affixed to it a plurality of spaced-apart block members which are adapted to lodge against and underneath the cross-bars of the T-shaped recesses, whereby weight placed on a step member can be transferred to the web.

REFERENCES:
patent: 266183 (1882-10-01), Moore
patent: 298660 (1884-05-01), Bessier
patent: 647628 (1900-04-01), Heum
patent: 686182 (1901-11-01), Wright
patent: 3043399 (1962-07-01), Marryatt
patent: 3307654 (1967-03-01), Green

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