Device for anti-rolling signalling for cable laying tractors

Details Device for anti-rolling signalling for cable laying tractors Device for anti-rolling signalling for cable laying tractors

1977-11-07

1979-10-30

Paperner, L. J.

Material or article handling

Cylindrical bar handling device

Including ramp and retractable stop or ejector

73143, 116284, 212 39MS, 177147, 340685, 414698, B66F 1100

Patent

active

041726880

ABSTRACT:
A signalling device operatively coupled between the side arm or lifting boom of a pipe layer and the frame thereof in a predetermined fixed position such that movement of the signalling device relative to the fixed position, which occurs in response to the operational load, is directly related to the critical or rolling load for any lateral position of the side arm or lifting boom.

REFERENCES:
patent: 2022844 (1935-12-01), Christian
patent: 2983140 (1961-05-01), Crane
patent: 3187913 (1965-06-01), Strader et al.
patent: 4042116 (1977-08-01), Bertolino
patent: 4112750 (1978-09-01), Murakami

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