Lift arm safety bar

Details Lift arm safety bar Lift arm safety bar

1975-11-10

1976-09-28

Paperner, L. J.

92 23, 214140, E02F 380

Patent

active

039826481

ABSTRACT:
Safety bar for maintaining a piston rod in an extended position with respect to its cylinder. The rod-and-cylinder function as the hydraulic actuator for the lift arm in a front-end crawler-loader, and are connected at the rod end to the loader lift arm and at the cylinder end to a loader carrier frame in the crawler-loader. The safety bar has an operative position where it is retained, under compression, adjacent the piston rod to prop the raised rod and lift arm against retrograde collapse, and the bar is swingably mounted to the lift arm for elevation into an inoperative position adjacent the lift arm.

REFERENCES:
patent: 3088546 (1963-05-01), Ross et al.
patent: 3135555 (1964-06-01), Caskey
patent: 3272558 (1966-01-01), Rathman et al.
patent: 3360146 (1967-12-01), Borer et al.
patent: 3396863 (1968-08-01), Borer et al.
patent: 3502228 (1970-03-01), Tamborino
patent: 3918601 (1975-11-01), Zimmerman

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