Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1998-03-10
1999-11-23
Butler, Douglas C.
Brakes
Wheel
Axially movable brake element or housing therefor
188170, 188264E, 19211334, F16D 5536
Patent
active
059883260
ABSTRACT:
A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil shear brake unit and the oil shear clutch unit are supplied as complete assemblies which are secured to the brake housing and clutch housing, respectively, at the time of assembly of the units to the press. The actuation of the clutch unit and the brake unit occur simultaneously and from the same hydraulic pressure source such that the overlap between the two units is controllable from no overlap to a specified amount of overlap where the brake unit is applied simultaneously with the engagement of the clutch for a specified amount of time. The stroke acquired by the brake and clutch actuating assemblies can each be selected at the time of assembly by selecting the appropriate width for a plurality of spacers.
REFERENCES:
patent: 2242396 (1941-05-01), Johansen
patent: 2848082 (1958-08-01), Dehn
patent: 3441114 (1969-04-01), Pensa
patent: 3713517 (1973-01-01), Sommer
patent: 4095523 (1978-06-01), Drungil
patent: 4346796 (1982-08-01), Ueno
patent: 4562907 (1986-01-01), Maeda
patent: 5769187 (1998-06-01), Sommer
Butler Douglas C.
Midwest Brake Bond Company
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