Material or article handling – Load engaging structure of elevator or hoist device with...
Patent
1983-11-07
1986-07-08
Rolla, Joseph J.
Material or article handling
Load engaging structure of elevator or hoist device with...
187 9R, B65G 4700
Patent
active
045990387
ABSTRACT:
A lift truck fork of substantially reduced weight without sacrificing load carrying capacity, the weight reduction being effected by forming at least one of the load or lift arms with a channel-like cross-section extending throughout a substantial portion of the length of such arm, additionally forming the flanges of said channel-like portions with parabola-like edges.
REFERENCES:
patent: 2925999 (1960-02-01), Hopkins, Jr.
patent: 3528580 (1970-09-01), Carliss
patent: 3876039 (1975-04-01), Bushnell, Jr.
patent: 3876090 (1975-04-01), Holland
Jos. Dyson & Sons, Inc.
Noland Kenneth
Robb Frank B.
Rolla Joseph J.
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