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US 4,058,937 AGranted
Grinder attachment for a lathe
AssigneeAmmco Tools, Inc.
InventorWallace F. Mitchell
Life of this patent
Estimating the term…
Abstract
A self-contained grinder attachment employs a rigid housing having an electric motor mounted thereon for driving both a grinding wheel and a blower which sucks air and loose particles entrained therein from the grinding area, the shaft on which the grinding wheel is mounted being connected to the housing by flexible and resilient connections thereby to isolate the grinding wheel from vibrations originating in the motor and in the lathe itself.
Claims6
Grinding apparatus, comprising
- a rigid housing,
- a driven shaft having a first shaft portion and a second shaft portion,
- spaced apart bearing means journaling said first shaft portion in said housing,
- said second shaft portion being of tubular construction,
- said first shaft portion extending onto said second shaft portion
- resilient annular means compressed between said first and second shaft portions,
- a grinding wheel fixedly mounted on said shaft,
- a plurality of elastomeric rings respectively surrounding said bearing means and compressed between said housing and said bearing means,
- said rings providing the sole connection between said bearing means and said housing,
- a third driven shaft portion to which said grinding wheel is connected,
- said third driven shaft portion extending into said second shaft portion,
- other resilient annular means compressed between said second and third shaft portions,
- a driven pulley mounted to said first portion of said driven shaft,
- an electric motor mounted to said housing and having an output shaft,
- a drive pulley disposed on said output shaft, and
- a flexible, resilient belt drivingly connected between said pulleys.
13 more elements
Grinding apparatus, comprising
- a rigid housing
- a driven shaft having first, second and third shaft portions,
- bearing means respectively journaling said first and third portions in spaced apart alined relationship in said housing
- said second shaft portion being tubular and interposed between said first and third shaft portions,
- said first and third shaft portions respectively extending into the opposite ends of said second shaft portion,
- a plurality of resilient annular means respectively compressed between said first and third shaft portions and said second shaft portion,
- a grinding wheel mounted to said third shaft portion,
- a driven pulley mounted to said first shaft portion,
- an electric motor having an output shaft,
- said motor being mounted to said housing,
- a drive pulley mounted to said output shaft, and
- a flexible, resilient belt drivingly connected between said pulleys.
9 more elements
Dependencies are inferred from the claim text.