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US 4,815,347 AGranted
Lathe attachment with axially movable chuck
AssigneeJaxial, Inc.
InventorThomas L. Rogers
Life of this patent
Estimating the term…
Abstract
A housing is shaped to mate with a large turret or engine type lathe tailstock. A rack and pinion assembly is mounted within the housing with a chuck attached to an end of the rack. An adjustable hand lever is attached to the pinion and allows the operator to advance the rack and chuck with precision control. The attachment virtually eliminates drill bit breakage.
Claims14
A lathe attachment comprising:
- a housing having a longitudinal axis, an attachment means for mating with said lathe, a rack passage parallel to said longitudinal axis, a pinion axle passage perpendicular to said longitudinal axis, a pinion passage intersecting said rack passage and said pinion axle passage, and a stop member;
- a rack slidably mounted within said rack passage along said longitudinal axis and having a slot channel aligned to receive said stop member, said slot channel being shaped with end walls to interact with said stop member to limit the longitudinal travel of the rack;
- a pinion axle mounted within said pinion axle passage;
- a pinion attached to the pinion axle and located within said pinion passage, the teeth of the pinion mating with the teeth of the rack;
- a lever attached to extend from the pinion axle;
- and
- a chuck fixedly attached to an end of the rack such that the chuck is prevented from rotating relative to the rack.
4 more elements
A lathe attachment comprising:
- a housing having an attachment means for mating with a lathe and a stop member;
- a rack slidably mounted within the housing along a longitudinal axis and having a longitudinal slot channel aligned to receive said stop member, said slot channel being shaped with end walls to interact with said stop member to limit the longitudinal travel of the rack;
- a pinion rotatably mounted in the housing about an axis of rotation normal to said longitudinal axis with the teeth of the pinion mating with the teeth of the rack;
- a tool holder means for securely holding a tool about an axis parallel with said longitudinal axis, and fixedly attached to an end of the rack such that the tool holder is prevented from rotating;
- and
- a lever connected to the pinion for allowing an operator to control the amount of rotational movement about said axis of rotation and the movement of the pinion and thereby precisely control the amount of linear movement of the tool holder means.
3 more elements
Dependencies are inferred from the claim text.