G - Physics – 01 – F
Patent
G - Physics
01
F
212/28.2
G01F 11/04 (2006.01) B66C 23/70 (2006.01)
Patent
CA 1040592
ABSTRACT OF THE DISCLOSURE A bar for use in a telescoping boom having at least one mechanically-operated telescoping slide and at least one hydraulically-operated telescoping slide, the bar utilized for extending or retracting a mechanically-operated telescoping slide. Known similar bars are too heavy and cumbersome to be handled easily by a single operator. As a result, two workmen are frequently required when using such bars. The present invention permits the use of a relatively short bar which can be easily handled by one workman. The bar is of a length corres- ponding to a partial length of the mechanically-operated tele- scoping slide, the bar having first means adjacent one end thereof, the first means adapted to releasably engage a support on a hydraulically operated telescoping slide. The bar has further means adjacent an opposite end thereof for engaging a plurality of spaced-apart cooperating members mounted along a length of at least one mechanically-operated slide. A distance between adjacent cooperating members is less than a distance between the first means and the further means on the bar, whereby the first means and the further means on the bar are adapted to engage the support and the spaced-apart cooperating members to effect extension and retraction of the mechanically-operated slide utilizing a bar having a length less than one-half the fully extended length of the mechanically-operated slide.
251505
Kranefeld Wilhelm
Schneider Helmut
LandOfFree
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