Endless chain drive for telescopic jib sections

Details Endless chain drive for telescopic jib sections Endless chain drive for telescopic jib sections

1980-08-18

1982-12-14

Rowland, James L.

Traversing hoists

Having vertically swinging boom

Having means to swing boom vertically

212267, B66C 2304, B66C 2370, B66C 2382

Patent

active

043634133

ABSTRACT:
A crane of the telescopic jib type wherein the telescopic jib sections are driven for outward and inward telescopic movement by a chain cable or the like which is connected to the jib sections and movement of which in one direction drives the sections outwardly and movement of which in the other direction drives the sections inwardly. This enables a simple and relatively cheap drive means to be employed.

REFERENCES:
patent: 3396601 (1968-08-01), Wright
patent: 3469712 (1969-09-01), Haulotte
patent: 3889818 (1975-06-01), Wennerstrom

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