Method and apparatus for forming a wave curb for milking parlor

Details Method and apparatus for forming a wave curb for milking parlor Method and apparatus for forming a wave curb for milking parlor

1997-10-07

2000-02-08

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72385, 723796, B21D 1302

Patent

active

060216573

ABSTRACT:
Wave curb for the cow stand of a diagonal or herringone milking parlor is formed of an elongated sheet metal strip. The side edges are each bent over about 180 degrees to form unitary beads on the side edges. The strip is bent in alternate curves in the longitudinal direction so as to form a succession of alternate arcuate bights, preferably with a wavelength of about 36 to 42 inches. Preferably, the strip is stainless steel or galvanized steel, and has a finished length of about 36 to 144 inches. The sheet metal workpiece is inserted into a wave curb bending apparatus which simultaneously forms a first pair of opposite arcuate bights. Then the workpiece is moved longitudinally in the wave curb bending apparatus; and a second pair of opposite arcuate bights is formed in the sheet metal workpiece. The forming of each pair of arcuate bights can be achieved by rotating a pair of oppositely directed drums against opposite sides of said strip, while holding the strips against a pair of rolls disposed beyond positions of the drums. One of the rolls can be removed for forming straight portions.

REFERENCES:
patent: 1591509 (1926-07-01), Brookman
patent: 1843108 (1932-02-01), Clayden
patent: 2821809 (1958-02-01), Collier et al.
patent: 2908317 (1959-10-01), Sadler
patent: 3777527 (1973-12-01), Lohman
patent: 3828733 (1974-08-01), Correia
patent: 3875786 (1975-04-01), Wright
patent: 4840054 (1989-06-01), Sjogren
patent: 5156108 (1992-10-01), Hawbaker
patent: 5199292 (1993-04-01), Del Fabro et al.

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