Cylinder hone
AssigneeMinnesota Mining and Manufacturing Company
InventorsJames C. Huppert, Jack A. Zitzer
Life of this patent
Estimating the term…
Abstract
A cylinder truing hone comprising a plurality of pressure members mounted in circumferentially spaced locations around a driven member for movement radially of the driven member and with pressure surfaces on the pressure members outermost. An axially movable cam on the driven member is in engagement with the pressure members and can move them outwardly. Abrasive coated sheet material extends over the pressure surfaces where it can be pressed into engagement with a cylindrical inner surface by movement of the cam, and a mechanism is provided for changing the portion of the abrasive coated sheet material extending over the pressure surfaces.
Claims4
A hone adapted for use in truing the inside cylindrical surface of a tube that is longer than the hone, said hone comprising:
- a driven member having an axis and an end portion adapted to be engaged to axially move said driven member while rotating said driven member around said axis;
- a plurality of pressure members having elongate pressure surfaces;
- means mounting said pressure members on said driven member for movememt radially of said driven member with said pressure surface aligned axially of said driven member, facing radially outwardly of said driven member, and spaced circumferentially around said driven member;
- cam means adapted to be operated through the driven end portion of the driven member and including a cam mounted for movement on said driven member between release and pressure positions and in engagement with said pressure members for moving said pressure members radially outwardly of said driven member upon movement of said cam from said release position toward said pressure position;
- a separate supply of abrasive coated sheet material adjacent each of said pressure members, said abrasive coated sheet material having a portion extending over the pressure surface of the adjacent pressure member;
- and
- means only operable between uses of the hone to true the inside cylindrical surface of a tube for changing the portion of the abrasive coated sheet material extending over each of said pressure surfaces.
Dependencies are inferred from the claim text.