Ladder for climbing up to and down from working floor of printin

Details Ladder for climbing up to and down from working floor of printin Ladder for climbing up to and down from working floor of printin

1994-06-03

1995-08-08

Burr, Edgar S.

Printing

Rolling contact machines

101216, 182 93, 182 95, 182 97, B41F 500

Patent

active

054389259

ABSTRACT:
A ladder for contraction and storage on an upper working floor of a printing press having a plurality of vertically arranged working floors for access to said printing press at said working floors, such ladder having a plurality of substantially equal length sections coupled to each other at overlapping ends of said sections at side rack of said ladder for expanding and contracting such ladder, the upper end of the upper-most ladder section, when such ladder is expanded, having coupling means engageable with rails on such upper working floors for guiding such ladder, when contracted, into a horizontal position at such upper working floor for storage and for guiding such contracted ladder to a position at the end of such upper working floor for movement from a horizontal storage position to a substantially vertical expanded position for extension between such upper working floor and a working floor therebelow and means for locking such plurality of coupled sections into such contracted position for storage.

REFERENCES:
patent: 906954 (1908-12-01), Sponholz
patent: 2819005 (1958-01-01), Roberts
patent: 2840290 (1958-06-01), Roberts
patent: 4370927 (1983-02-01), Fischer
patent: 5022491 (1991-06-01), Gill
"Cline System Controls the Press" Cline Electrical Mfg. Co. Mar. 1929.

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