Robert G Hash, 70Lancaster, CA

3932094, Jan 13, 1976

Jun 17, 1974

5/479756

Wolfram G. Korff - Granada Hills CA
Vernon V. Emery - Sun Valley CA
Joseph Kim Bond - North Hollywood CA
Robert S. Hash - Mission Hills CA

Emery Company, Inc. - Pacoima CA

B29C 1700

425393

A multiple station plastic pipe belling machine in which an endless conveyor periodically receives one of a series of plastic pipes as each pipe is dumped from a V-trough receiving such pipes in sequence after their extrusion and cutting into predetermined pipe lengths, disposes the pipes so received parallel to, but spaced from, each other and advances the thus-disposed pipes in predetermined increments; positions the pipes in such a manner that their ends to be belled are first passed in such increments through a heater adjacent the edge of the endless conveyor, while the pipes are continuously rotated until each pipe passes out of the heater and is then carried in such increments by the endless conveyor into the first of a plurality of belling stations where a pair of semi-circular clamps encircle the pipe end and a mandrel or plug is inserted therein. After insertion of the plug, the clamps are removed and the thus-plugged pipe is further moved incrementally through several additional belling machine stations in a cooling area until the pipe end is sufficiently cooled, whereupon the plug is withdrawn so that the pipe may be further advanced by the endless conveyor for discharge from the machine. As soon as one pipe is moved into the cooling area from this first clamping and plugging station, the next pipe is clamped and belled in that station.