With Means For "hold-down" Component Of Force Patents (Class 269/134)
  • Patent number: 4867428
    Abstract: A clamping device for clamping a fireproof plate into a metal frame of slide gate includes a clamping jaw that can be pressed against the plate perimeter. A wedge-shaped member acts on the clamping jaw and is threaded onto a bolt that is rotatably positioned in the frame. The clamping jaw and the wedge-shaped member have engaging slots and keys that cause positive withdrawal of the clamping jaw upon loosening the wedge-shaped member.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: September 19, 1989
    Assignee: Stopinc Aktiengesellschaft
    Inventor: Robert Fricker
  • Patent number: 4845899
    Abstract: A cassette type part clamping member holding precision parts of small size to very close tolerances. The parts are clamped in a manner so that they are securely held but are not damaged. The cassette mounts relatively easily made, low cost, and useful reference bar for providing a reference surface against which the parts are clamped and also against which a sensor will operate during an operation such as grinding to insure that a straight grind cut is made. The cassette that holds the part clamping members and the reference bar, and a separate outer cassette holder fixture which provides reference surfaces for supporting the reference bar holding it in position accurately and without affecting the preload on the clamping members is mounted on the tool table. The cassette can be removed from and replaced into the holding fixture without releasing the parts.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: July 11, 1989
    Assignee: MAR Engineering, Inc.
    Inventor: Leon G. Dashevsky
  • Patent number: 4671500
    Abstract: A symmetrical clamping device for producing bonded uniform panels from narrow strips of wood as well as laminated boards glued together. Includes two relatively long guide plates provided with appropriate linkage mechanism capable of exerting pressure to the entire surface being clamped while applying force to the ends in a direction that is perpendicular to that surface when actuated manually by way of appropriate jack screws disposed at each end of the guide plates or automatically by using power cylinders in combination with linkage and an end bolt incorporated therein, to insure participation of bondable material in the process of clamping and conformation to the surfaces of guide plates which may have a straight flat surface or an irregular shape so as to produce desired final product.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: June 9, 1987
    Inventor: William J. Mark
  • Patent number: 4662617
    Abstract: A support base is shown for supporting a motorcycle where the motorcycle has a footpeg on either side of the motorcycle frame for receiving the rider's foot and where each footpeg is provided with at least one opening therein. The base includes a body having a top support surface for supporting the frame of the motorcycle, a bottom surface and sidewalls therebetween. A tie-down tool is provided which includes a handle and a shank extending outwardly from the handle. The shank is of lesser relative diameter than the handle to allow the shank to pass through the footpeg opening but to restrain the handle. The outer extent of the shank opposite the handle is provided with a hook for engaging a loop on the sidewall of the body to support the motorcycle in upright fashion on the base.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: May 5, 1987
    Inventors: Andrew F. Ditterline, Jr., James A. Mann, Jr.
  • Patent number: 4582306
    Abstract: A vise jaw for attachment to a vise jaw support which includes a first plate for attachment to the vise jaw support in place of the standard vise jaw and having a plurality of vertically elongated openings formed therein and a second plate overlying the first plate and having a plurality of pins extending therefrom and engaging the openings in the first plate, a spring carried by the first plate and engaging at least one pin to urge the second plate to a normal uppermost position and a structure carried by the first plate and operable to engage one of the pins in an opening therein to urge the second plate downwardly when a work piece has been fastened in the vise.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: April 15, 1986
    Inventor: Richard Sassenberg
  • Patent number: 4411415
    Abstract: A compound jaw plate for a vise having a jaw attaching plate and a work engaging plate spaced from and movable relative to the jaw attaching plate. A pair of links are located in pivotal engagement with both plates. Elastomeric material is located between the plates. The links are positioned at acute angles relative to the intended direction of applied force for gripping a workpiece so that when force is applied, the plates move simultaneously, relatively toward each other compressing the elastomeric material and in a direction transversely of the applied force to apply an additional force to the workpiece transversely of the gripping force.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: October 25, 1983
    Inventor: James J. Denaro
  • Patent number: 4353561
    Abstract: A lathe chuck jaw for a lathe chuck having a radially moving actuator which radially moves the jaw in to and out from the workpiece. A jaw base part is rigidly connected to the actuator. A jaw shoe part is rotatably attached to the base part. The shoe part has a workpiece-comforming surface which can hold the workpiece. The rotatable attachment of the shoe part allows it to match the general orientation of the workpiece, including a nonlongitudinal orientation due to a workpiece's imperfect shape.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: October 12, 1982
    Assignee: The United States of America as represented by the Unites States Department of Energy
    Inventor: William R. Peterson
  • Patent number: 4332203
    Abstract: A device for forcing railroad car deck planks downward against a support and sidewards against a stop to aid in tying the plank to the support with a clip-like tie member. The device includes an anchor member for being fixedly attached to the support, a body member attached to and extending upward from the anchor member, an engagement member for engaging a portion of the plank, and a jack member for selectively causing the engagement member to force the plank downwards and sidewards relative to the body member.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: June 1, 1982
    Inventor: Robert Flowers
  • Patent number: 4261558
    Abstract: The invention concerns a device for laterally clamping workpieces to be machined to a machine tool and in particular for clamping awkwardly-shaped or high workpieces.The device is characterized in that it comprises at least one slide provided with an anchoring element movable in translation in the slide by the thrust exerted by pressure-applying means, the active part of the anchoring element, projecting from the front face of the slide, having at least one rigid abutment zone and a slightly flexible zone.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: April 14, 1981
    Inventor: Andre Carossino
  • Patent number: 4205833
    Abstract: A bench vise which incorporates a self locking fixed jaw operating with a pair of interlocking surfaces reacting as the fixed jaw is loaded. As the workpiece is tightened down, the jaw tends to be forced downwardly against the sliding portion of the vise to tightly lock the workpiece being held. The reaction of the load is carried directly into the support shaft for the fixed jaw, which also forms a swivel member for the vise.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: June 3, 1980
    Assignee: Kurt Manufacturing Company, Inc.
    Inventor: John O. Lenz
  • Patent number: 4096023
    Abstract: A support assembly including elongated upper and lower parallel plates. A plurality of column supports separate and interconnect the parallel plates. A clamping assembly is supported by the plates, the clamping assembly having vertical and horizontal pressure screw assemblies. A vertical pressure screw assembly is mounted upon the upper plate adjacent each end thereof, and a horizontal pressure screw assembly is mounted upon the lower plate at each end thereof. Both vertical and horizontal pressure screw assemblies project into the space between the upper and lower plates. An annular flexible platform is attached to the lower plate adjacent each end thereof, beneath each vertical pressure screw assembly, and projects into the space between the plates. Lenses, which are to be fixed together by adhesive means to form a combination lens, are received upon a flexible platform, aligned by action of a horizontal pressure screw assembly, and pressed together by action of a vertical pressure screw assembly.
    Type: Grant
    Filed: May 6, 1976
    Date of Patent: June 20, 1978
    Inventor: Carl F. Bivens
  • Patent number: 3970296
    Abstract: A work clamp for clamping a workpiece to a work table with a clamp member which extends and retracts to and from clamping position with a compound motion having components parallel to and normal to the table in a manner such that extensile movement of the member occurs both parallel to the table to a position over the workpiece and toward the table to clamp the workpiece against the table, and retractile movement of the member occurs both away from the table to release the workpiece and parallel to the table to clear the workpiece for removal from and placement on the table.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: July 20, 1976
    Assignee: TRW Inc.
    Inventor: William Watson Rameson