Bryant Grinder Corporation

John W Lovely

Robert N Hobbs

Hugh T Edgar

A grinding machine having a fixed wheelhead and a biaxially movable workslide. The workslide is mounted on a cylindrical slidebar for axial sliding motion as well as pivotal motion around the bar. A dresser assembly is also mounted pivotally on the slidebar for selective dressing operations. The workslide may be moved axially into an overlapping relationship with the dresser such that the workslide is carried with the dresser over a range of pivotal displacement thereof. An hydraulic cylinder is used to pivot the dresser and a precisely positionable stop is used to control all lateral feed motions. Axial speed is programmed by a control valve. The dresser is pivotal on its base to produce a true circle wheel profile.

Interform grinding machine

A single-slide, mechanically and electrically programmed grinding machine comprising a rigid enclosed base, a fixed workhead assembly on the base, a pair of parallel slidebars mounted on the base, and a wheelslide assembly mounted on the base for longitudinal displacement thereover. Longitudinal wheelslide displacement is mechanically controlled by a motor-driven cam bearing against a spring-biased lever pivoted to the base and connected to the wheelslide via a rod. Lateral feed is independently electrically controlled by a motor-driven nut and screw shaft assembly which angularly displaces the wheelslide assembly relative to one of the slidebars and about the centerline of the other slidebar. An eccentric and variable-position spacer is provided for reciprocating the wheelslide during a grind operation. A thermally-stable base configuration is disclosed. Part load and unload apparatus, all mechanically programmed, are also disclosed.

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Springfield, VT, United States of America

John W Lovely