Apparatus for and method of shirring a tubular casing
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United States of America Patent
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May 27, 1986
Grant Date -
N/A
app pub date -
Mar 22, 1985
filing date -
Mar 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for shirring a tubular casing includes a pair of shirring wheels with helical teeth. The wheels 21,22 (FIG. 9) are moulded from flexible rubber or polyurethane. The leading edge 43 of a tooth of one wheel 22 is aligned (shown by a nominal straight line 48) with the leading edge 42 on the adjacent tooth on the other wheel 21. The helical teeth are of controlled flexibility and the wheels may include circumferential walls joining the teeth. Other features of the invention relate to the curvature of the crest or face surface of the teeth which are related to wheel diameter and to the desired diameter of the shirred stick or slug which is to be produced.
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