Material or article handling – Elevator or hoist and loading or unloading means therefor – Comprising means enabling additional movement of carrier or...
Patent
1979-04-18
1981-07-28
Paperner, Leslie J.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Comprising means enabling additional movement of carrier or...
414785, B66B 920, B66F 900
Patent
active
042807816
ABSTRACT:
A truck of the kind provided with tines by which goods can be lifted and conveyed is provided, in which the tines are arranged to co-act with apparatus for regulating the horizontal distance therebetween. The apparatus comprises a screw-threaded spindle with which sleeves mounted on the tines co-act. Rotation of the spindle causes the tines to move towards or away from each other. The spindle is provided at its center or in the neighborhood thereof with right-hand and left-hand screw threads. The sleeve of one tine has a corresponding right-hand screw thread and the sleeve of the other tine has a corresponding left-hand screw thread. The spindle is arranged to co-operate with a shaft. Between the shaft and the spindle apparatus is arranged which causes the spindle to rotate in a direction corresponding to the direction of rotation of the shaft, and which permits lateral displacement (axial displacement) of the spindle relative to the shaft. The spindle is mounted, via the shaft, to an upper part of a frame structure, the upper part also carrying apparatus for driving the shaft and the spindle.
REFERENCES:
patent: 2451943 (1948-10-01), Gunning
patent: 2483745 (1949-10-01), Vossenberg
patent: 2958436 (1960-11-01), Skutle et al.
patent: 3289873 (1966-12-01), Hansen
patent: 3356241 (1967-12-01), Vavilek
Paperner Leslie J.
Williams L. E.
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