Material or article handling – Elevator or hoist and loading or unloading means therefor – Grab
Patent
1985-01-31
1987-02-10
Valenza, Joseph E.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Grab
2941191, 384 26, B66F 918
Patent
active
046420207
ABSTRACT:
A clamp attachment for use on a lift truck having a body adapted to be mounted on a lift truck which includes a plurality of elongate spaced parallel guides. Each guide supports a longitudinally movable slide connected to a load clamp and actuated by piston and cylinder assembly. The slides are reduced in weight by being tubular members and a solid heel support member is positioned in the outer end of each of the tubular members for providing strength. The heel support fills the cross-sectional area of the tubular slide. A heel plate which is connected to and supports a load clamp is bolted to the slide and heel support. The heel extends a distance into the end of the slide sufficient to reduce the stress concentration through a cross section containing a bolt to less than the stress concentration in the tubular slide alone. The solid heel support member is of a higher breaking strength than the tubular slide.
REFERENCES:
patent: 1753411 (1930-04-01), Gunn
patent: 2671571 (1954-03-01), Gerhardt
patent: 3245562 (1966-04-01), Horton
patent: 3370880 (1968-02-01), Carliss et al.
patent: 3450288 (1969-06-01), Walsh
patent: 4090628 (1978-05-01), Sinclair
patent: 4185944 (1980-01-01), Seaberg
patent: 4279564 (1981-07-01), Weinert
Bucci David A.
Long Reach Manufacturing Co.
Valenza Joseph E.
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