Abstract: A cutting insert includes a body that forms top and bottom surfaces, and a center hole intersecting at least the top surface (e.g., a through-hole). A portion of the top surface which extends around the center hole includes an array of projections radiating laterally outwardly around the center hole. A distal end of each projection disposed farthest from the center hole defines a tip of the projection. The projections form at least six tips spaced circumferentially apart. Each tip has a planar top face. A clamp has flat contact surfaces which press downwardly against the planar top faces of respective projections simultaneously as the clamp pulls the insert against an upstanding support surface.
Abstract: A cutting insert is mounted in a pocket of a holder so that rotation of an adjustment member mounted in the holder produces rotation of the insert about a center axis. The insert includes top and bottom surfaces interconnected by a side surface. The side surface includes a curved portion engaging side support surfaces of the holder, a pair of planar surfaces extending from respective ends of the curved portion, and a portion extending from one of the planar surfaces to define a parallel land. The curved portion engages the adjustment member so that rotation of the latter produces a fine adjustment of the parallel land.
Abstract: A tire rasp blade for use in a tire buffing machine having a rotating hub. A set of rasp blades is arranged in a plurality of circumferential rows. Each of the blades has a non-planar elongated body with generally planar portions, and an arcuate working edge having teeth which extend in a direction generally parallel to the direction of hub rotation. The working edge includes two elliptical-shaped segments.
Abstract: A duplicating system, especially for use with a multipurpose woodworking machine capable of performing lathe turning operations. The system includes a support table, a carriage adapted to be slidably mounted on the machine, and a locking rack and pinion for raising and lowering the table relative to the carriage. A tool support is positioned on the table and includes a base having a low friction pad for engaging the table top, a follower for contacting a pattern, and a multi-edge cutting tool rotatably mounted on a tool rod for engaging a workpiece. An insert guide is mounted on the tool rod to hold the cutting tool in position. The base has a set screw which engages a circumferential groove in the shank of the tool rod so that the cutting tool can be quickly and accurately positioned relative to the follower.
April 10, 1989
Date of Patent:
February 13, 1990
Steven A. Snyder, Jack Smith, David D. Flora, Robert L. Bartlett
Abstract: A rotationally symmetrical tool assembly includes a first component constituted by a tool holder; a second component constituted by a tool head and being removably attached to the first component such that engagement faces of the first and second components are in a contacting relationship with one another and are oriented perpendicularly to the rotary axis of the tool assembly. A fitting bore is provided in one of the components and a guide bore is provided in the other of the components. A securing pin projects from the fitting bore and extends into the guide bore for determining and maintaining a desired angular position of the second component relative to the first component.
June 15, 1988
Date of Patent:
November 14, 1989
Fried. Krupp Gesellschaft mit beschrankter Haftung
Abstract: A cutting tool for use with a lathe includes an elongated body member having a generally rectangular cross section dimensioned and configured for cooperation with an associated tool post. The elongated body member has a head end having a step shaped surface thereon on which is disposed a plurality of generally radially extending ribs disposed at equal angular increments. The ribs extend through an arc of 360 degrees. A first head assembly has a lower extremity which includes a surface having a plurality of generally radially extending ribs disposed at equal angular increments thereabout. These ribs are uniformly spaced and dimensioned and configured for cooperation with the ribs of the body portion. The ribs of the head assembly and the body portion have the same angular spacing therebetween. The head assembly includes discrete means for holding a cutter insert and means for holding the head assembly on the body portion.
Abstract: A tool holder having a cut-out portion in its forward end which is to defined as a generally flat surface for supporting the bottom surface of a tool bit over the entire area of the flat surface and an upstanding side wall for engaging a substantial portion of the side surface of the tool bit. A retaining pin is rockingly mounted on the tool holder with the upper end projecting out of the flat surface and being received of a hole of the tool bit. The lower end portion of the retaining pin is urged laterally with respect to the longitudinal axis of the pin by a tightening screw whereby the tool bit is urged against the upstanding side wall.