Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-01-19
1983-04-26
Hall, Carl E.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29436, 172572, B21H 700, B21K 1900
Patent
active
043808530
ABSTRACT:
A torsion bar disk gang mounting assembly includes a shaft pivotally suspended from a disk frame. A rectangular tube receives a portion of the shaft. A pair of disk gang support arms are pivotally coupled to the shaft and extend generally rearwardly therefrom. The arms are fixed to opposite ends of the tube and support a disk gang at their distal ends. A torsion bar is resiliently coupled between the tube and the shaft to bias the disk gang downwardly. A method of making such a disk gang mounting assembly includes the steps of assembling the shaft, tube and torsion bar, then fixing the arms to ends of the tube. The shaft is then pivoted with respect to the tube and arms to establish a predetermined preload in the torsion bar. A stop arm is then fixed to the shaft in engagement with an abutment on one of the arms to maintain the preload in the torsion bar and to limit downward movement of the disk gang. Coupling holes are then drilled in the ends of the shaft with a certain orientation with respect to the arms so that consecutive shafts may be coupled together with coupling collars.
REFERENCES:
patent: 1694626 (1928-12-01), Roberts
patent: 2616352 (1952-11-01), Johnston
patent: 2669171 (1954-02-01), Silver et al.
patent: 2798419 (1957-07-01), Moricean
patent: 2979138 (1961-04-01), Martensen
patent: 3405767 (1968-10-01), Thompson
patent: 3706345 (1972-12-01), Patterson et al.
Deere & Company
Hall Carl E.
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