Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1976-10-14
1978-01-24
DiPalma, Victor A.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
742308, 113116D, B21K 142
Patent
active
040695727
ABSTRACT:
A clutch pulley assembly primarily designed for use with electromagnetic clutches for driving air conditioning compressors on automobiles and the like wherein the component parts of the clutch pulley assembly are fabricated from stampings with a reduction in the amount of machinery required to complete the device. The method of making and assembling the structure is part of the invention and includes the press forming of a web disc for supporting pulley grooves from sheet steel having desirable magnetic properties to produce an annular flange portion thereon at the outer edge thereof and extending substantially perpendicular thereto, then punching a central hub receiving aperture in the disc and then mounting the central aperture of said disc on a central hub made from a tube section. A die forming method of manufacturing a pulley groove is also disclosed. A section of steel tubing is cut to length, this section is press formed by axially moving dies, and then the pulley groove is completed by both axially and radially moving forming dies of multi-segment type. The pulley groove thus formed is then pressed upon the machined outer flange surface of the web disc in which magnetic flux blocking slots have also been punched.
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Berry Samuel M.
Johnson Arthur D.
Pierce William C.
DiPalma Victor A.
Jacobson Harvey B.
O#Brien Clarence A.
Pitts Industries, Inc.
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