Precision Metalsmiths, Inc.

Donald A Daugherty

John H Simmons

An apparatus for cutting off castings from investment cast set-ups comprising a mandrel assembly engageable with the inside of the center tree of the set-up to clamp it with its longitudinal axis in a horizontal plane, a vertically movable carriage support, a carriage movable along the support parallel to the longitudinal axis of the center tree, a cut-off assembly including a horizontal abrasive disc on the carriage, and structure permitting lateral adjustment of the cut-off assembly in a direction normal to that of carriage movement.

Casting cut-off machine

Method and apparatus are disclosed for cyclically metering charges of a granulated wax-like or resinous material from a bulk supply and feeding such metered charges into a heated, pressurized reservoir. Each charge of the granulated material is fluidized with a stream of air under pressure to insure flow of the granules. The stream of air also serves to pressurize the reservoir and prevent the escape of hot air therefrom. Cooling of the reservoir inlet to prevent agglutination of the granules also is contemplated.

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Lyndhurst, OH, United States of America

Donald A Daugherty