Opposed To Work-supporting Surface Patents (Class 83/450)
  • Publication number: 20140116219
    Abstract: A system of safety devices is disclosed for use in connection with powered cutting tools, including but not limited to table saws, miter saws, jointers, shapers and routers. The devices include a right hand push device adapted to slide along the fence of a table saw, shaper, router or jointer, a dual bearing hold down device to secure a work piece in at least three directions and adapted for use with a table saw, shaper, router or jointer, an anti-kickback device to secure a work piece after a cut is made and while cutting continues and adapted for use with a table saw, shaper, router or jointer, a left hand hold down device for securing a work piece on the side of a cutting blade opposite that of a fence and adapted for use with a table saw, shaper, router or jointer, and a hold down device adapted for use with miter saws. Each of the devices, alone and in combination, protect the operator of the power tools from serious injury from the cutting tool and from work piece kickback.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 1, 2014
  • Patent number: 8371198
    Abstract: A fence engagement and blade guard includes a column mounted to a table saw with a horizontal member received in a channel in the column. A vertical rod extends through and is vertically adjustable in a hole in the horizontal member. An engagement cart is suspended from the vertical rod and includes a beam having axle apertures and axles received in the apertures to support wheels. The wheels frictionally engage a work piece. An axle suspension system is supported from a shield. The engagement cart is angularly rotatable for engagement of the wheels on the work piece to directionally urge the work piece against the table saw fence.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: February 12, 2013
    Inventor: Joseph Babine
  • Patent number: 8117953
    Abstract: A stop rule for circular saw benches includes a profiled hollow body extending longitudinally with a substantially right-angled cross section, on which means are located for the attachment thereof to a table. One side of the profiled hollow body is designed as a guide member with a coplanar extension extending therefrom, which has a guide rule on the front edge thereof for low workpieces. Such guide rule extends vertically at right angles from the table, on which the guide member lies when the stop rule is in a horizontal position. The extension protruding sideways has a horizontal contact surface in the horizontal position of the stop rule, on which surface a vertically adjustable hold-down device for low work pieces is connected.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 21, 2012
    Inventor: Georg Aigner
  • Patent number: 7234380
    Abstract: The present invention is directed to an apparatus for maintaining contact between a portion of a workpiece between a kerf intrusion device and an alignment fence. In an aspect of the present invention, a table saw is configured with a support having a support surface for accepting a saw blade extended through an aperture in the support to cut a workpiece. An alignment fence is adjustably coupled to the saw to allow for workpiece positioning with respect to the saw blade. A kerf intrusion device such as a back splitter is coupled to an arbor for rotating the saw blade. An side pressure splitter is further included on the intrusion device such that a portion of a workpiece disposed between the intrusion device and the alignment fence is directed into contact with the alignment fence.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: June 26, 2007
    Assignee: Black & Decker Inc.
    Inventor: Jaime E. Garcia
  • Patent number: 7140286
    Abstract: A dual adjustable feather jig for simultaneously holding a piece of wood stock firmly against a stationary rip fence and against the top surface of a worktable. The feather jig includes a lower feather board with a ‘T’ in channel bar adjustably mounted on the bottom surface of the lower feather board to laterally adjust the lower feather board over the worktable. Mounted transversely on the lower feather board is an upper feather board assembly that includes a vertical feather board to hold the wood piece against the worktable. The vertical feather board is connected to a slider arm that slides longitudinally over a riser block securely mounted to the lower feather board. Formed on the lateral and lower edges of the lower and vertical feather boards, respectively, are diagonally aligned fingers that press the wood piece against the rip fence and against the top surface of the worktable.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: November 28, 2006
    Inventor: Neal K. Schwartz
  • Patent number: 6619347
    Abstract: A combination workpiece positioning, hold-down and anti-kickback device for a work table having a fence against which a workpiece is guided, includes a non-rotatable positioning member having an arcuate cam surface at one edge for engaging a side surface of a workpiece on the work table; an adjustment device for moving the positioning member in lengthwise and transverse directions relative to the workpiece and for locking the same thereat; a pivot pivotally mounting the positioning member to the adjustment device; a spring for biasing the positioning member in a pivot direction into engagement with the side surface of the workpiece; a non-rotatable hold-down member having a second arcuate cam surface at one edge for engaging an upper surface of the workpiece; an adjustment device for moving the hold-down member in lengthwise, transverse and vertical directions relative to the workpiece, and for locking the same thereat; a pivot pivotally mounting the hold-down member to the second adjustment device; and a sec
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 16, 2003
    Inventors: Peter Jukoff, Ethan Dean
  • Publication number: 20030089211
    Abstract: A machine tool circular cutting supplementary apparatus comprises an upright support vertically slidably and horizontally rotatably mounted in the worktable of a machine tool, a locating block fastened to the top of the upright support, a horizontal rod slidably inserted through a transverse through hole in the locating block and locked with lock means, and a positioning member mounted on one end of the horizontal rod member and provided with a tip being engaged with the center of the circle drawn on the workpiece to be cut by the machine tool.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 15, 2003
    Inventor: Jung-Hua Lin
  • Patent number: 6553879
    Abstract: Apparatus for dispensing paper toweling includes a rotatable toweling support roller and a cutter blade pivotally mounted on the outer peripheral portion of the roller. The blade is movable between a first position in which the cutting edge of the blade is positioned closely adjacent to the outer peripheral portion and a second position in which the blade is disposed at an angle relative to the outer peripheral portion with the cutting edge of the blade spaced from the toweling support roller. The cutter blade when in the second position projects in a direction generally opposed to the direction of rotation of the toweling support roller so that pulling force exerted on the toweling by a user will bear against the cutting edge of the cutter blade to sever the toweling.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: April 29, 2003
    Assignee: Perrin Manufacturing Company
    Inventor: Michel Morand
  • Publication number: 20020148334
    Abstract: The feeding of plastic sheet material to a trim press is carried out utilizing an endless belt conveyor which supports and drives the plastic sheet in a manner which is coordinated with the cycle of drawing of the sheet material into the trim press dies. The surface of the conveyor belt supports the plastic sheet for upward movement with little or no dragging of the sheet material, and the position of the plastic sheet being engaged with the conveyor can be set by an operator utilizing guide plates and guide wheels located at a position near the intake end of the conveyor. The conveyor belt may be driven continuously at a rate corresponding to the rate at which plastic sheet is drawn into the trim press, or in intermittent motion by a motor in a manner that is coordinated with the intermittent feeding of the sheet material into the trim press.
    Type: Application
    Filed: April 17, 2001
    Publication date: October 17, 2002
    Inventor: Douglas Wolfe
  • Patent number: 6314850
    Abstract: Apparatus for dispensing paper toweling includes a rotatable toweling support roller and a cutter blade pivotally mounted on the outer peripheral portion of the roller. The blade is movable between a first position in which the cutting edge of the blade is positioned closely adjacent to the outer peripheral portion and a second position in which the blade is disposed at an angle relative to the outer peripheral portion with the cutting edge of the blade spaced from the toweling support roller. The cutter blade when in the second position projects in a direction generally opposed to the direction of rotation of the toweling support roller so that pulling force exerted on the toweling by a user will bear against the cutting edge of the cutter blade to sever the toweling.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: November 13, 2001
    Assignee: Perrin Manufacturing Company
    Inventor: Michel Morand
  • Patent number: 6170372
    Abstract: A dual spring hold down for use with wood working tools, such as table saws, routers and shapers comprises a bracket mounted on the wood working table behind the tool and a hold down bar pivotably attached to the bracket with the hold down bar surrounding the wood working tool. A threaded rod is threaded into and extends upward from an extension arm of the bracket and though a slot in a hold down bar cross plate. A first coil spring surrounds the threaded rod immediately above the cross plate and a second, stronger coil spring surrounds the threaded rod above the first coil spring while a cylindrical sleeve surrounds the first coil spring. The hold down bar is free to drop down to act as a safety barrier when no wood panel is present. Then, initial lifting of the hold down bar by a wood panel is initially against the relatively light downward bias of the first coil spring until the sleeve is lifted to a “hold down height” at a point sufficient to compress the first coil spring within the sleeve.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 9, 2001
    Inventor: Richard A. Weaver
  • Patent number: 6009785
    Abstract: A cutting mechanism for a flat material web housing a printer unit, in particular for the production of labels or tags. The cutting mechanism includes an entrance section, a cutter section, and an exit section. A damping device formed by a damping plate or a piece of damping metal is provided to take up and damp any shock waves occurring in the flat material web as a result of the cutting action. To be able to define and adjust the position relative to a printer unit, an adjusting device is provided so that the housing of the cutting mechanism can be adjusted relative to the mounting section of the printer unit.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: January 4, 2000
    Assignee: Meto International GmbH
    Inventor: Jurgen Ott
  • Patent number: 5946996
    Abstract: A beltless automatic feed chadless envelope slitter device is disclosed. A separator-alignment assembly assures that only the lowermost envelope received from an infeed zone is passed downstream to a slitter and the envelope so-passed has its marginal edge aligned with a guide fence. The separator-alignment assembly is comprised of a pair of drive wheels having upper peripheral portions projecting above the table in combination with a pair of drag levers having high friction portions at the lowermost ends thereof. The high friction portions are preferably spring urged toward the table, and are shiftable upwardly and downwardly to accommodate envelopes of varying thickness and envelopes which themselves include varying thickness portions. The high friction components are urged toward the table at positions laterally offset from the peripheries of the drive wheels.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: September 7, 1999
    Assignee: The Staplex Company, Inc.
    Inventors: James J. Oussani, Jr., Gregory B. Oussani
  • Patent number: 5918521
    Abstract: A bifurcated holdown shoe for radial arm saw mounted to the saw guard of the radial arm saw such that the lower surface of the holdown shoe is mounted at a distance above the radial arm saw saw table corresponding to the height of a work piece to pass underneath the holdown shoe and be cut by the radial arm saw. The holdown shoe includes an arm portion which is bifurcated into two arms separated by a channel. A portion of the saw blade is held within the channel. The holdown shoe holds a work piece vertically steady against the saw table immediately adjacent the saw blade during a rip-cut, thus reducing the occurrence of kick-back.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: July 6, 1999
    Inventors: James A. Sartori, Michael J. Sartori
  • Patent number: 5605085
    Abstract: A circle cutting device for selectively rotatably retaining a workpiece in a jigsaw permits a user of the circle cutting device to cut accurate circles with the jigsaw. The circle cutting device includes an elongated track secured to the jigsaw, and further includes a housing having an upper portion slidably adjustably attached to the elongated track for location at a preselected position and a lower portion with a centrally located opening therein. A pin is positioned in the centrally located opening of the lower portion of the housing and extends a predetermined distance from the opening for selectively engaging a workpiece and maintaining the workpiece in a preselected position in relation to the jigsaw, thereby providing a pivot point for rotatably retaining the workpiece in the jigsaw so as to permit the user of the jigsaw to accurately cut circles from the workpiece.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: February 25, 1997
    Assignee: Laborsaber, Inc.
    Inventor: Stephen P. Bohrer
  • Patent number: 5540129
    Abstract: An anti-splintering system for sawing machines having a saw blade with a plurality of teeth, has components including an anti-splintering device positionable on a workpiece laterally from the saw blade in pressure contact with the latter in the region of the teeth, and at least one positioning device connectable to the sawing machine and supporting the anti-splintering device for a correct operational arrangement of the anti-splintering device in the event of a change in at least one of a cutting depth and an angle of inclination of the saw blade.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: July 30, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Kalber, Ralf Kalber
  • Patent number: 5482098
    Abstract: A device for feeding a curved workpiece is presented. A shaping device incorporating a feeding device of the present invention comprises a base; a cutting head projecting vertically above the base for shaping the workpiece; and a jig mounted to the base for guiding the workpiece past the cutting head. The jig includes first, second, and third rollers for providing a three point support for the workpiece. Preferably, one of the rollers is motor driven to automatically advance the workpiece past the cutting head. Further, the jig is preferably vertically adjustable and horizontally adjustable. A feeding device is adaptable for installation on standard shaping devices, and it can shape the lateral surfaces of both straight and curved wooden workpieces.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: January 9, 1996
    Inventors: Dean A. Loppnow, Dale D. Steffen
  • Patent number: 5452752
    Abstract: The invention relates to a pressure device for wood-milling machines with an arm (32), which is attached to a bearing support (20), that can be pivoted around a horizontal axis (22) and adjusted in its longitudinal direction. The arm carries a vertically- and horizontally-adjustable pressure shoe, which acts upon the top of a work piece (18), as well as a vertically-adjustable guidance element (34), which presses the work piece (18) horizontally against a stop (16) and can be pivoted around a vertical axis. Single clamping rings (50) screwed onto external threads (42) are provided in order to arrest, respectively, the arm (32) set in its longitudinal direction, the pressure shoe (38) set vertically and horizontally, and the guidance element (34) set and swung horizontally.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: September 26, 1995
    Inventor: Georg Aigner
  • Patent number: 5301579
    Abstract: A work retainer device for a scroll-saw in which a work retainer is mounted on an arm cover of an upper arm. Two brackets are formed at both distal ends of the arm cover to embrace the upper arm from both sides. Upright portions of a work retainer holding member are overlapped with the brackets. The brackets and the upright portions of the work retainer holding member are fastened to each other by a fastening unit including a screw rod which passes laterally through at least one of the overlapped portions of the bracket and the upright portions of the work retainer holding member. A longitudinal hole is formed in the upright portions of the work retainer holding member. The work retainer is fixed to a lower portion of the work retainer holding member.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: April 12, 1994
    Assignee: Limited Ryobi
    Inventors: Takeshi Shiotani, Kouichi Miyamoto
  • Patent number: 5287782
    Abstract: A rip saw with multiple saws adjustably positionable along a power-driven arbor. A clamp or hold-down assembly is provided on its upstream side, and on the downstream side, of the arbor and its saws. Each assembly is passable along an inclined path that converges on the path of travel of work through the machine. The assemblies inhibit fluttering in and otherwise stabilize boards as they are being cut by the saws.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: February 22, 1994
    Assignee: PIW Industries Inc.
    Inventor: Mark A. Scott
  • Patent number: 5148846
    Abstract: A workpiece guide to help feed boards into a woodworking machine such as a power saw. The guide is adapted to hold the board against the guide fence as the board is fed into the saw by pressing a knurled wheel down against the board. The wheel is slightly angled to move the board toward the fence and is pressed down against the board by a leaf spring thus keeping the board from riding up on the blade.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: September 22, 1992
    Inventor: Harry Van Gelder
  • Patent number: 5131901
    Abstract: Apparatus for scoring and perforating sheets of paper which receives sheets of paper in flat or folded condition and which applies scoring or perforating lines at selected locations, and delivers the sheets to a folding machine or other apparatus for further processing.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: July 21, 1992
    Inventor: Richard J. Moll
  • Patent number: 5058474
    Abstract: An improved biasing guide for safely controlling a workpiece disposed on the deck of a machine tool by urging it toward a stationary frame, wherein the height of the elongated arm and bias wheel is easily controlled by a minutely adjustable cam mechanism which is movable against a preset spring tension.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: October 22, 1991
    Inventor: Gerardo Herrera
  • Patent number: 4878408
    Abstract: An apparatus for slitting elongated flexible tape longitudinally into a plurality of strips of preselected width, the apparatus including a base forming a generally horizontal tape support surface and a pair of upstanding side supports, one of which functions as a side edge guide for one side edge of the tape. A shaft is mounted transversely between the side supports, and functions to support an adjustable side edge guide for abutting and guiding the other side edge of the tape, and a cutter adjustably located to slit the tape to the preselected width and having a cutting blade and a hold-down surface adjacent the blade for slidably clamping the tape during slitting to prevent lateral tape movement.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: November 7, 1989
    Assignee: Keen Corporation
    Inventors: William C. Isaacson, Herbert A. Farmery
  • Patent number: 4649781
    Abstract: A food cutting apparatus with a feed chamber for feeding a food product, in which a longitudinally slidable pressure plate bias the food product against a cutting blade. Against each wall of the feed chamber is a conveyor belt movable at the same speed as the rate of feed of the food product by the pressure plate, thereby eliminating fouling of the wall surfaces and resulting in a more precise and repeatable cut.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: March 17, 1987
    Inventor: Ernst Holz
  • Patent number: 4615247
    Abstract: An anti-kickback system for use with a table saw or the like consists of a splitter adapted to be mounted on the table saw and including an elongated slot therethrough inclined relative to the table top, a pair of cams, each having peripheral, work-engaging surface including a spiral segment, and a pin attached to the cams and extending through the slot to form a pivot axis for the cams at approximately the centers of the spiral segments. The slot is sized to slidably receive the pin and includes an upper, elongated edge having a plurality of arcuate shaped detents sized to receive the pin. Movement of a workpiece in a kickback condition beneath the cams causes the cams to be pivoted and displaced upwardly to lock the pin against one of the detents so that the workpiece is clamped between the table top and a portion of the spiral segment of the cams.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: October 7, 1986
    Assignee: Shopsmith, Inc.
    Inventor: James E. Berkeley
  • Patent number: 4531438
    Abstract: The present invention is directed to a safety device for standard table-mounted saws whereby a board is firmly restrained thereon while the sawblade rotates to saw the board in a longitudinal plane. The device utilizes a pair of vertically oriented, spring-loaded, hold-down assemblies to maintain the board in longitudinal alignment with the rotating blade. The hold-down assemblies are of a generally rectangular configuration and may be conveniently mounted perpendicular to and at longitudinally spaced apart locations with respect to the board. The device of the invention is a significant improvement in safety equipment designed to prevent the sawed sections of a board from kicking back onto the operator of conventional table saws.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: July 30, 1985
    Assignee: Joe H. Walker
    Inventor: Louis C. Pair
  • Patent number: 4497233
    Abstract: A roll slicer device having an endless belt with an upper run movable in a feed direction, including a fixed skid plate having a smooth lower surface spaced above said upper run and extending in the feed direction. The device also having a slicer horizontally movable in a space between the skid plate and the upper run for slicing a roll supplied between the skid plate and the upper run.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: February 5, 1985
    Inventors: Gregory C. Papalexis, Richard I. Elliott
  • Patent number: 4301700
    Abstract: A cutting apparatus for cutting a web into sheets comprises a web shear. A web stop is disposed downstream of the shear. A web feed is disposed upstream of the web shear. A web stiffening device is disposed between the web shear and the web stop for holding the web in a rigid flat plane whereby the web is repeatedly cut to the same desired length.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: November 24, 1981
    Assignee: Unicel Corporation
    Inventor: Richard Greven
  • Patent number: 4276798
    Abstract: A cable separator including a pair of slotted rolls that define uniformly spaced apart slitting or shearing sites which are spaced from one another by a distance corresponding to the conductor spacing of a flat cable. A guiding structure at the inlet of the slitting sites for guiding the flat cable thereinto at a proper transverse position to assure that slitting takes place between adjacent conductors. The guiding structure has a plurality of longitudinally extending spring loaded ribs that are spaced from one another by an integral multiple of the interconductor spacing of the cable. A pivotal clamping frame mounted at the inlet of the guiding structure and a mechanism for adjusting the clamping frame to adjust the distance over which the cable conductors are separated by the apparatus.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: July 7, 1981
    Inventor: Klaus W. Gottschalk
  • Patent number: 3994194
    Abstract: A cutting apparatus for making circular or circular arc-like cuts in a sheet of material such as paper, cloth, leather, plastic, rubber and the like. A substantially planar base is provided to receivably support said sheet and a hinged apertured clamping plate is lowered over the supported sheet to secure it against movement during the cutting operation which takes place through the aperture. An arcuate arm is secured to the base and an elongated portion of the arm positions an internally-threaded vertically-oriented boss above the aperture. An externally-threaded member is operably received within the boss and includes an adjustment disc for turning said member to raise or lower same within said boss. A blade-positioning shaft is received within a vertically-oriented central bore in the member and includes a shoulder to secure the shaft for vertical movement with the member. The lower distal end of the shaft includes a threaded pin for being slideably received within a radius selecting slot of the blade.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: November 30, 1976
    Inventor: Francesco Moceri