Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1984-06-29
1987-05-26
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
72111, 220 8, 220306, B21D 1704, B21H 118
Patent
active
046674985
ABSTRACT:
A gelatine capsule includes a locking ridge having a smooth, rounded cross-section for improved locking characteristics with respect to the body portion of the capsule. The capsule cap is formed on a metal pin having a circumferential groove therein with a shape complimentary to that of the capsule groove. Each forming pin in shaped by rolling an unfinished pin between two rollers. The unfinished pin is supported by an anvil located just below the center line connecting the axes of rotation of the two rollers. One roller is preferably smooth and the other roller preferably has a cross-sectional profile complimentary to that of the ultimate capsule cap. The locking groove is formed in the cap pin by bringing the two rollers together so as to rotate the pin under great force thereby burnishing a smooth, rounded locking groove into the finished pin.
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Larson Lowell A.
Sauter Manufacturing Corp.
Woodbridge Richard C.
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