Telescopic boom

Details Telescopic boom Telescopic boom

B - Operations, Transporting

66

C

214/20, 212/28.4

B66C 23/04 (2006.01) B66C 23/70 (2006.01)

Patent

CA 1097590

ABSTRACT OF THE DISCLOSURE An improved telescopic boom for a truck mounted hoist in which at least the middle telescoping section of the boom is fabricated from I-section structural steel having a central web, and upper and lower flanges, the flanges having inwardly facing surfaces lying in angled planes which are not normal to the plane of the web, and in which the trolley and fixed portion of the boom are fabricated of any other suitable structural material, and having at least two sets of identical rimmed wheels, one set mounted directly on the fixed section, and the other set mounted directly of the trolley, without the use of tilting arms, the two sets of wheels riding in opposite sides of the I-section material of the telescopic intermediate section, with the tread of the wheels carrying the load and with the rims providing lateral guidance thereby dispensing both with the mounting arms and with the lateral guide rollers.

315213

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