Emergency stopping brake system for tractors and trailers

Details Emergency stopping brake system for tractors and trailers Emergency stopping brake system for tractors and trailers

1983-02-28

1985-02-12

Butler, Douglas C.

Brakes

With condition indicator

Electrical

188 18A, 188 714, 188 715, 188 717, 188 727, 188196M, F16D 5538, F16D 6600

Patent

active

044985606

ABSTRACT:
A system for braking axle-attached wheels of a tractor trailer and the like includes first and second arrays of discs symmetrically opposed about the centerline of a tubular axle containing the arrays of discs; symmetrical also in each array of discs is a first plurality of discs slidably attached to the axle and a second plurality of discs slidably attached to the housing; the axle comprises a stub axle at each end protruding from the housing in position for mounting a wheel or wheels; in braking, a two-lobe, cam-actuated system simultaneously compresses the respective arrays of discs in directions opposite each other for frictional retardation of the axle; bearings carry the axles; the cam actuated system includes a spreader plate driving a pressure plate on each side of centerline.

REFERENCES:
patent: 1315236 (1919-09-01), Parker
patent: 2016359 (1935-10-01), Corbin, Jr.
patent: 2551448 (1951-05-01), McGuire
patent: 2711261 (1955-06-01), Butler
patent: 2925889 (1960-02-01), Albright
patent: 2955683 (1960-10-01), Kelly
patent: 3182756 (1965-05-01), Hawley et al.
patent: 3502180 (1970-03-01), Aiki et al.
patent: 4102438 (1978-07-01), Rancourt
patent: 4152787 (1979-05-01), Meggyesy
patent: 4294334 (1981-10-01), Shinoda et al.
patent: 4391351 (1983-07-01), Jirousek et al.

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