Brakes – Elements – Brake wheels
Patent
1975-11-13
1977-04-19
Blix, Trygve M.
Brakes
Elements
Brake wheels
F16D 6512
Patent
active
040183114
ABSTRACT:
In a railway disc brake, a plurality of arcuate elements or segments of a braking ring are attached to the rotor so that each element or segment can thermally expand and contract relative to the rotor, and pairs of circumferentially spaced locating abutments are provided for preventing radial inward and outward movement of the element or segment relative to the rotor at predetermined locations which are selected so that when the element undergoes thermal expansion or contraction with respect to the rotor there is no movement of the element into or out of engagement with the abutments. The abutments may take the form of radial projections on the element or segment or rotor, which projections are urged into engagement with a groove in the rotor or disc element, respectively by further abutments, such as in the form of camming wedges or springs. Alternatively the abutments may be lateral projections on the rotor which are a sliding fit in elongated grooves in the element or segment.
REFERENCES:
patent: 2485082 (1949-10-01), Bachman
patent: 2541979 (1951-02-01), Amundsen
patent: 2902130 (1959-09-01), Halberg et al.
patent: 3295641 (1967-01-01), Eaton et al.
patent: 3530960 (1970-09-01), Otto et al.
patent: 3877551 (1975-04-01), Gebhardt et al.
patent: 3939946 (1976-02-01), Pierre et al.
Blix Trygve M.
Girling Limited
Kazenske Edward R.
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