Lightweight high strength boom construction

Details Lightweight high strength boom construction Lightweight high strength boom construction

1974-06-25

1976-03-30

Kundrat, Andrew V.

Joints and connections

Convergent interface

Tapered

403109, 182 2, 212144, F16B 710

Patent

active

039471918

ABSTRACT:
An articulated boom of high strength to weight ratio is disclosed including an inner steel boom of modified trapezoidal cross-section including a top web, inclined opposed side webs and an arcuately curved bottom web; a pivotal elbow connector is mounted on the outer end of the inner boom and supports the inner end of a tapered hollow fiberglass shell defining an outer boom member of inverted modified trapezoidal cross-section including a top wall having progressively decreasing width from its inner to its outer end, opposed side walls which progress inward from top to bottom with the degree of inward taper decreasing from the inner end to the outer end of the outer boom and with the lower ends of the side walls being connected by an arcuate, downwardly convex hollow connector wall opposite the top wall.

REFERENCES:
patent: 1974458 (1934-09-01), Hallquist
patent: 2910190 (1959-10-01), Baas
patent: 3276182 (1966-10-01), Handley

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