Crompton & Knowles Corporation

Albert P Brown

David C Hoddinott

Michael T Burns

Edward J McGrady

Paul J Guhl

William A Kramer

A method of manufacturing an extruder barrel is disclosed which fabricates a barrel in two longitudinal sections and joins the sections together by electron beam welding. In a preferred form, the barrel sections are formed by machining conical recesses longitudinally in each section whereby a complementary bore is defined by the assembled barrel sections. The machined recesses may be formed with spiral, longitudinal or radial grooves. The recesses may be a uniform conical shape, stepped conical or a dual tapered shape.

Method for producing an extruder barrel assembly

A Heater-Cooler unit that provides efficient heating and cooling in such a manner that the temperature is easily controlled. The unit's 360 degree exposure enables both fins and barrel surface to be in complete contact with cooling air. The structure of the fins provides contact with the barrel to conduct heat flowing from the heating elements to the barrel surface.

Internal finned heater-cooler for an extruder barrel

A strand cutting mechanism having a pair of freely rotatable cutting discs mounted on a cutting head on opposite sides of a generally V-shaped guide notch, said cutting discs cooperating to cut strand guided into said guide notch before it reaches the apex of the guide notch.

Strand cutting mechanism

Winding apparatus for the continuous winding of an advancing strand, having two coaxially mounted, spaced and independently driven, removable reels and a traverse mechanism for delivering strand to the reels alternately. Each of these reels is mounted on an axle which is equipped with a machine reel and snagger means assembly which is a permanent part of the machine and each of them are mounted adjacent to the remote ends of said reels when said reels are in winding position so that the reels are disposed for rotation about a common axis between the machine reels and snagger means assembly. The traverse means is controlled so as to distribute the strand onto one of the reels until a predetermined length of strand is wound thereon. Further means is provided for rapidly moving the traverse means across the empty reel into a position for directing the strand onto the machine reel associated with the empty reel. Means are also provided to restrain the strand while said traverse means is moving across the empty spool into position to wind on the machine reel. Once the traverse means is in position to wind on the other machine reel, the restraining means are removed and the strand is brought into contact with the snagger for the empty reel. After at least one revolution of the strand is wound onto the machine reel, cutter means is actuated to cut said strand adjacent to the snagger means but between the snagger means and the filled reel. This operation is controlled by a device that counts a predetermined number of revolutions. A second device is also utilized to count a second predetermined number of revolutions greater than the first so that a predetermined number of revolutions of the strand will be wound on the machine reel. After this second predetermined number of revolutions have been attained, the traverse means is moved into normal winding position on the empty reel and normal winding thereon is continued until that reel is filled.

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Gales Ferry, CT, United States of America

Albert P Brown