Metal working – Means to assemble or disassemble – Spring applier or remover
Patent
1990-11-05
1992-03-17
Parker, Roscoe V.
Metal working
Means to assemble or disassemble
Spring applier or remover
29267, 81486, 254 105, 254131, B23P 1904
Patent
active
050956035
ABSTRACT:
A drum brake service tool and a method of using the same is disclosed. The tool comprises a lever having a pair of spaced, parallel arms disposed at one end thereof, the arms being adapted to receive a brake spring substantially perpendicularly therebetween. A brake-spring retaining mechanism is disposed proximate the free end of each of the arms. One of the free ends of the brake spring is passed over the brake-spring pin of one of the first or second brake shoes. The brake-spring is then engaged in between the arms of the lever. The lever is pivoted on the cam to extend the brake-spring to the point that the other free end of the spring lies proximate the brake-spring pin of the second brake shoe. The free end of the spring is then engaged with the pin of the second brake shoes. The tool may also be used to remove or install a brake roller in the brake shoes. In this instance, the tool is provided with a pair of L-shaped spurs mounted substantially parallel to each other on two sides of the lever, said sides being perpendicular to the width of the lever and said spurs being disposed spaced a distance from each other which is being substantially equal to said width of the lever. It is only necessary to use one hand to operate this tool, leaving the other hand free to position the brake-spring or brake roller for installation or removal.
REFERENCES:
patent: 1144548 (1915-06-01), Jones
patent: 2490160 (1949-12-01), Riccio
patent: 2685731 (1954-08-01), Vertin
patent: 2704200 (1955-03-01), Call
patent: 2948058 (1960-08-01), Culkosky
patent: 3071849 (1963-01-01), Krohm
patent: 3290769 (1966-12-01), Kashergen
patent: 4976022 (1990-12-01), Thomton
patent: 5003680 (1991-04-01), Vesely et al.
Carruthers Vincent E.
McConnell Ralph
Sowers William P.
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