Tubular section boom

Details Tubular section boom Tubular section boom

1976-08-09

1978-01-24

Faw, Jr., Price C.

Static structures (e.g., buildings)

Machine or implement

52119, 214 86A, 212114, 182 2, E04H 1200

Patent

active

040696375

ABSTRACT:
A boom for an excavator or the like is constructed to have a generally L-shape when viewed in side elevation and have a circular cross section tapering downward from a maximum diameter at the apex of the boom to each end. The boom is made up of a central body portion consisting of a cast-form elbow and a pair of tapered tubular members formed of rolled plate welded along a longitudinal seam extending from the elbow outward to the outer ends of the boom. A pair of cast-formed connecting members are then welded to the end of the boom. The method of fabrication includes the cast-forming of the elbow and the respective end connecting means and forming the tapered body members by rolling and connecting the entire assembly by welding.

REFERENCES:
patent: 1574563 (1926-02-01), Duff
patent: 2085829 (1937-07-01), Rogers
patent: 2607500 (1952-08-01), Frink
patent: 2808160 (1957-10-01), LaLonde
patent: 2910190 (1959-10-01), Baas
patent: 2973112 (1961-02-01), Young
patent: 3353852 (1967-11-01), Wood
patent: 3902295 (1975-09-01), Yancey

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