Torque application assembly for closure valve of a railroad hopp

Details Torque application assembly for closure valve of a railroad hopp Torque application assembly for closure valve of a railroad hopp

1982-06-23

1985-10-01

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Elements

G05G 516

Patent

active

045438510

ABSTRACT:
A torque application assembly is provided comprising an operating shaft having a non-round connection portion. At least one metal washer is connected to the non-round portion of the shaft so as to be rotatable therewith. A resilient spring engages the metal washer, and a barrel nut is provided to apply a compressive force to the spring under a desired compressive force thereby to apply a desired torque to the shaft without applying any substantially longitudinal force to the shaft. At least one low friction material washer is located between the metal washer and a fixed wall whereby the shaft and the metal washer can rotate with a minimum frictional drag with respect to the fixed wall.

REFERENCES:
patent: 2006896 (1935-07-01), Joyce
patent: 3127967 (1964-04-01), Fawkes
patent: 3157060 (1964-11-01), Marr
patent: 3458172 (1969-07-01), Burrows
patent: 3550472 (1970-12-01), Dummer
patent: 3987687 (1976-10-01), Bland et al.
patent: 4018104 (1977-04-01), Bland et al.
patent: 4041796 (1977-08-01), Shishido
patent: 4114785 (1978-09-01), Dugge
patent: 4438660 (1984-03-01), Kittle

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