Method of making bearing pulley

Details Method of making bearing pulley Method of making bearing pulley

1976-03-17

1978-03-21

DiPalma, Victor A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291484D, 29115, 29123, 72367, 742308, 113116D, 228155, B21K 142

Patent

active

040794920

ABSTRACT:
A method of producing bearing pulleys for conveyer belts and roller gravity conveyers in which the bearing pulley includes a cylindrical portion and common central pivot pins secured to the cylindrical portion by a hub or roller base, which comprises providing a cylindrical pipe of a desired bearing pulley diameter, tapering the end portions of said pipe in a truncated configuration by non-cutting cold deformation down to the diameter of the pivot pins, and subsequently inverting the tapered end portions of the pipe centrally within the cylindrical portion of the pipe a distance sufficient to provide the desired spacing between the ends of the pulley.

REFERENCES:
patent: 1598240 (1926-08-01), Carlson
patent: 1748473 (1930-02-01), Fisk
patent: 1984115 (1934-12-01), Cooper
patent: 1990805 (1935-02-01), Watson et al.
patent: 1990806 (1935-02-01), Watson et al.
patent: 2208729 (1940-07-01), Offutt
patent: 2671348 (1954-03-01), Moore
patent: 3984160 (1976-10-01), Sheldon

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