Production procedure of brake shoes

Details Production procedure of brake shoes Production procedure of brake shoes

1986-10-30

1987-08-25

Crane, Daniel C.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflectors arranged to bend work longitudinally of...

72133, 72166, B21D 708, B21D 1110

Patent

active

046884149

ABSTRACT:
Process of manufacturing brake shoes characterized in that a T section profile (1) is passed between a pair of rollers (6) and (7) of which one (6) is plain--and the other (7) of which has an annular groove (8), in which the stem (4) of the T (1) is freely disposed, the rolling of the upper and lower faces of the flange (3) of the T (1) being carried out between rollers (6) and (7). Thus, flange (3) becomes elongated and this elongation goes to the stem (1) of the said T in such a way that after the T emerges from between the rollers it adopts the curvature of the latter, whose external diameter is equal to the diameter (5') of the lower face of the flange (5) of the shoe. In another aspect of the invention, a brake shoe is formed by the method described above.

REFERENCES:
patent: 1418955 (1922-06-01), Mason
patent: 1673477 (1928-06-01), Yates
patent: 1875081 (1932-08-01), McConkey
patent: 1879568 (1932-09-01), Sneed
patent: 1905515 (1933-04-01), Smith
patent: 1943407 (1934-01-01), Yoder
patent: 2047084 (1936-07-01), Smith
patent: 2093933 (1937-09-01), Sinclair
patent: 3808863 (1974-05-01), Marcovitch
patent: 3842473 (1974-10-01), Couper

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