Welding ladder with folding and sliding rungs

Details Welding ladder with folding and sliding rungs Welding ladder with folding and sliding rungs

1977-08-01

1979-01-23

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

182106, 182206, 182228, E06C 136, E06C 138, E06C 708

Patent

active

041356055

ABSTRACT:
The present invention provides a portable light-weight ladder for use in connection with welding metal plates together positioned in an upright or vertical position comprising a main frame portion having extended side rails or stanchions which are rigidly affixed to each other by connecting rungs at each respective end of the side rails as in the manner of a conventional ladder. The side rails are further joined to each other by interconnecting rungs which in turn are provided with a removable portion at approximately the center thereof which portion can be swung or relocated out of position to provide access to an area immediately behind the particular rung, e.g., to gain access to a seam to be welded. One end of the present ladder is provided with an attachment for securing the ladder against a structure upon which the present ladder is to be employed.

REFERENCES:
patent: 2975857 (1961-03-01), Suroff
patent: 3006434 (1961-10-01), Rich

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