Tree trimmers

Details Tree trimmers Tree trimmers

1980-12-15

1982-09-07

Bray, W. D.

Woodworking

Special-work machine

30228, 30296R, B26B 1500, B27L 100

Patent

active

043478808

ABSTRACT:
A tree trimmer has a pruning head adapted to be operated by a reciprocable rod to perform a cutting action and to open up. A double acting compressed air operated linear thrustor causes an actuating rod to recipricate. A standpipe, which is composed of a series of tubes detachably and rigidly screwed together, is interposed between a casing of the thrustor and the pruning head. A solid plug is formed at one end of each tube with a guide hole. A series of connecting rods detachably and rigidly screwed together pass through the guide holes. The series of connecting rods are connected at one end to the actuating rod and at the other end to the reciprocable rod.

REFERENCES:
patent: 3721004 (1973-03-01), Buckles

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