B - Operations – Transporting – 26 – D
Patent
B - Operations, Transporting
26
D
164/52
B26D 3/00 (2006.01) A01G 25/02 (2006.01) B26D 7/06 (2006.01) B26F 1/00 (2006.01) E02B 11/00 (2006.01)
Patent
CA 1055837
ABSTRACT OF THE DISCLOSURE Apparatus for cutting openings at arbitrarily selectable intervals in a trickle irrigation pipe having a smooth wall and a transversely corrug- ated wall. The pipe travels with clearance over a mandrel and is externally supported by a carrier means which displaces the pipe into contact with a knife on the mandrel for cutting the transfer openings. The pipe traverses a cylinder which revolves about an axis parallel to the pipe axis, and which is fitted with a radially movable knife held in a holder that can be advanced towards the pipe to cut the exit openings. The two cutting machines are con- secutively disposed and adjustable longitudinally to cut openings in a pipe produced from a pipe forming machine.
263235
Hegler Ralph P.
Hegler Wilhelm
Hegler Ralph P.
Hegler Wilhelm
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