Opposed To Work-supporting Surface Patents (Class 83/447)
  • Patent number: 10226880
    Abstract: An anti-kickback device is disclosed where the device includes a plurality of flexible members, and at least a compliant contact surface in contact with a moving workpiece, where the flexible members provide a biasing force against the workpiece and also resist or prevent kickback of the workpiece as it engages a tool such as a shaper, saw blade, etc. The configuration of the flexible members assures an opposing force to resist kickback.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 12, 2019
    Inventor: D. Keith Bow
  • Publication number: 20140352512
    Abstract: A stock guide assembly for use with a work table to guide movement of stock along the work table in a feed direction includes a body. The body includes a portion lying in a plane parallel to the feed direction when used to guide movement of the stock. An adjustment mechanism is associated with the body for attaching the body to the work table and permitting the body to be adjusted on the table along an x-axis and a y-axis. A roller assembly is mounted on the body. The roller assembly includes a roller mounted for rotation relative to the body. The roller is positioned at a skew angle relative to the body portion plane and to the feed direction when used to guide movement of the stock. A second stock guide assembly substantially similar to the first stock guide assembly can be provided for use with the work table.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventor: Darrin E. Smith
  • 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: 7975585
    Abstract: A table saw guard has opposed rubber fingers extending from opposite supports. The fingers meet near slots in a saw table along a saw slot and provide visual and tactile warning of approaching the saw blade. The fingers bend as a board is pushed into contact with a saw. Friction between the bent fingers and the board resist unwanted bounce-back of the board while being sawed.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: July 12, 2011
    Assignee: Innovative Engineering Solutions, Inc.
    Inventor: Samir S. Shiban
  • Publication number: 20110041664
    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: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Inventor: Joseph Babine
  • Patent number: 7739936
    Abstract: A paper punch 100, 200 is disclosed as including a button 110, a die 104, and a die holder 106, 210 with an upper jaw 114, 208 and a lower jaw 116 which are spaced apart from each other, in which the button 110 is operable to move the die 104 relative to the die holder 106, 210 to punch at least a piece of paper out from a sheet of paper 117 received within the paper punch 117, and the die holder 106, 210 includes a wheel 120, 202 for limiting the extent of relative movement between the upper jaw 114, 208 and the lower jaw 116.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: June 22, 2010
    Assignee: Lee Tack Plastic & Metal Manufacturing Ltd
    Inventor: Kwok Ki Stephen Chan
  • Patent number: 7631585
    Abstract: A kickback-inhibiting device serves to inhibit a workpiece from being lifted up by a rotating cutting blade of a cutting device. The kickback-inhibiting devices include kickback-inhibiting members and a holding device. Each of the kickback-inhibiting members is movable between an operative position and an inoperative position. In the operative position, each kickback-inhibiting member is operable to engage the workpiece from an upper side in order to inhibit the workpiece from being lifted up. In the inoperative position, each kickback-inhibiting member is positioned upwardly away from the workpiece so as not to interact with the workpiece. The holding device serves to hold the kickback-inhibiting members in the inoperative positions.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: December 15, 2009
    Assignee: Makita Corporation
    Inventors: Kiyotaka Ichikawa, Katsuhiko Sasaki, Yoshinori Shibata
  • Publication number: 20090272241
    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: Application
    Filed: April 29, 2008
    Publication date: November 5, 2009
    Inventor: Georg Aigner
  • Patent number: 7341081
    Abstract: A horizontal rotary hold down jig for use in horizontally guiding a piece of wood to be cut on one of a portable table saw and a portable router table comprising a spring biased rotatable wheel that can be secured to the table. The spring biasing can be adjusted to provide uniform or enhanced pressure through use of a plurality of substitutable compression springs of varying compressive strength characteristics to laterally stabilize a piece of wood of varying consistency, wood grain angle, feed cutting speed, width, and thickness or depth of cut.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: March 11, 2008
    Inventor: Eric J. Villiger
  • 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: 7150216
    Abstract: A sawdust-free wood cutting apparatus (10) comprises a guide (62, 72) for guiding a piece of wood (W) along a feed path having a cutting zone. At least one circular blade (18b) is mounted in the cutting zone and driven in rotation about an axis transversal to the feed path. The circular blade (18b) has a toothless circumferential cutting edge. A feeder (14, 16) advances the piece of wood (W) to be cut through the cutting zone at a linear speed substantially equal to a tangential speed at the toothless circumferential cutting edge of the circular blade (18b).
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: December 19, 2006
    Assignee: Les Consultants Carpe Diem Jerome Inc.
    Inventor: Jérôme Lavoie
  • 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: 6968766
    Abstract: A compliant system of workholders for use with woodworking, metalworking, or other machinery each of which pushes against a workpiece with substantially constant pressure while moving in and out to accommodate variation in the size of the workpiece. Preferably, the workholder uses a feather board mounted on one or more sliding guide rods. Rollers, a low friction shoe, or other elements may also be used to contact the workpiece. A pneumatic cylinder is the preferred mechanism for applying outward pressure to the feather board. The workholder will retract on activation of a momentary switch by the user and will remain retracted for an adjustable time period to allow positioning of the workpiece.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: November 29, 2005
    Inventors: Darryl D. Kimmel, Donald L. Hildred
  • Patent number: 6718857
    Abstract: A compliant workholder for use with woodworking, metalworking, or other machinery which pushes against a workpiece with substantially constant pressure while moving in and out to accommodate variation in the size of the workpiece. Preferably, the workholder uses a feather board mounted on one or more sliding guide rods. Rollers, a low friction shoe, or other elements may also be used to contact the workpiece. A pneumatic cylinder is the preferred mechanism for applying outward pressure to the feather board. The workholder will retract on activation of a momentary switch by the user and will remain retracted for an adjustable time period to allow positioning of the workpiece.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: April 13, 2004
    Inventors: Darryl D. Kimmel, Donald L. Hildred
  • Patent number: 6698951
    Abstract: A paper jam detection system for a folding machine includes an interval signal generator for generating an interval signal which assumes ON and OFF levels alternately according to cutting intervals of a cutting cylinder; a signature detection mechanism including reflection plates each having a light reflection surface and being arranged circumferentially at an outer circumferential surface portion of a jaw cylinder and a photoelectric sensor adapted to generate a reflection plate detection signal upon detection of the reflection plate; and a control unit for outputting a paper jam signal on the basis of the interval signal and the reflection plate detection signal.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 2, 2004
    Assignee: Tokyo Kikai Seisakusho, Ltd.
    Inventors: Mitsuo Kitai, Takashi Iijima, Makoto Tsunashima, Yoshihiro Iwahashi
  • Publication number: 20030140754
    Abstract: A compliant workholder for use with woodworking, metalworking, or other machinery which pushes against a workpiece with substantially constant pressure while moving in and out to accommodate variation in the size of the workpiece. Preferably, the workholder uses a feather board mounted on one or more sliding guide rods. Rollers, a low friction shoe, or other elements may also be used to contact the workpiece. A pneumatic cylinder is the preferred mechanism for applying outward pressure to the feather board. The workholder will retract on activation of a momentary switch by the user and will remain retracted for an adjustable time period to allow positioning of the workpiece.
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Inventors: Darryl D. Kimmel, Donald L. Hildred
  • 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: 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: 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: 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: 5377571
    Abstract: A safety guard system for a band saw that comprises a flexible member and a sensor for deactivating the band saw when the flexible member is not deployed correctly. The flexible member has a resting position and a sawing position. In both positions, the flexible member provides a protective barrier between the band saw user and the band saw blade. The flexible member automatically adjusts by flexing to accommodate different sized work pieces.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: January 3, 1995
    Inventor: Harold Josephs
  • Patent number: 5367933
    Abstract: A power tool guiding and shielding apparatus that is magnetically attached to a work surface. The guide holds a work piece against a guide fence and the work table, allowing the work piece to slide on the work table while being machined. The shield is attached to the guide and the guide fence, which also holds the work piece to the work table.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: November 29, 1994
    Inventor: Jerome F. Jaksha
  • Patent number: 5317944
    Abstract: An adjustable protecting guard apparatus for a table saw having a guard positionable over the saw blade. The adjustable protection guard apparatus has a telescoping arm extending from one end of the saw table which supports a guard superstructure. A hinged connection on an edge of the guard superstructure permits the guard superstructure and the attached guard to pivot up and away from the saw blade. A control module simultaneously deactivates the motor rotating the saw blade with the pivoting of the guard superstructure. The control module has a multi-position key switch having a by-pass position permitting pivoting of the guard without de-energizing the motor. This permits difficult cuts to be made which would not be feasible with the guard in place. An anti-kickback pawl is also provided within the guard and prevents the saw from rejecting a workpiece in a direction opposite to its feed direction.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: June 7, 1994
    Inventor: Timothy Hewitt
  • Patent number: 5303625
    Abstract: A layer piercing paper punch is disclosed, in which a plurality of cutting hole plates is provided on a base between the location of a cutting hole and an upper cutter bar for perforation. Each of the cutting hole plates has a sharp-pointed portion on the front end and a cutting hole near the middle part. The cutting hole plates lying parallel to the surface of the base and in an overlapping position are always maintained by a position-fixing member with cutting holes in alignment with the upper cutter bar and the lower cutting hole on the base thereby enabling the cutting hole plates to perform up and down movement without any movement on the sides during the perforation of a paper file.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: April 19, 1994
    Inventor: Nui Hai-Shen
  • 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: 5203246
    Abstract: A system for aligning and squaring folded and glued boxes being conveyed serially in line or in a shingle utilizes a fixed set of alignment wheels positioned parallel to and on one side of the shingle and a set of adjustable alignment wheels positioned on the opposite lateral edge of the shingle. The adjustable alignment wheels can be adjusted as a unit to pivot on a vertical axis and to move laterally slightly into the path of the shingle. The pivot arm on which the adjustable wheels are mounted accommodates major misalignment of the initially incoming shingle, but is pivoted to an aligned position in the direction of shingle movement by the force of the moving shingle.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: April 20, 1993
    Assignee: Marquip, Inc.
    Inventors: Dean W. Smitterberg, Timothy C. Prochnow, William R. Nachtrab, Jr.
  • Patent number: 5181447
    Abstract: An adjustable protecting guard apparatus for a table saw having a guard positionable over the saw blade. The adjustable protection guard apparatus has a telescoping arm extending from one end of the saw table which supports a guard superstructure. A hinged connection on an edge of the guard superstructure permits the guard superstructure and the attached guard to pivot up and away from the saw blade. A control module simultaneously deactivates the motor rotating the saw blade with the pivoting of the guard superstructure. The control module has a multi-position key switch having a by-pass position permitting pivoting of the guard without de-energizing the motor. This permits difficult cuts to be made which would not be feasible with the guard in place. An anti-kickback pawl is also provided within the guard and prevents the saw from rejecting a workpiece in a direction opposite to its feed direction.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: January 26, 1993
    Inventor: Timothy Hewitt
  • 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: 5143130
    Abstract: A jig adapted for use with a conventional molder-planer for cutting work on curved wood sections. For this purpose, the present invention includes a base with the jig mounted thereon. The base bolts onto the table of the molder-planer so that the jig is positioned directly under the molder-planer cutter head. The jig is comprised of a set of two guide wheels permanently mounted in a side-by-side relationship on one side of the plate, and two adjustably mounted pneumatic cylinders, each with a guide wheel bolted to the end of the piston rod, mounted opposite to the permanent guide wheels.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: September 1, 1992
    Inventor: Robert L. Bonyman
  • 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: 4932299
    Abstract: An apparatus for cutting lengths of elongated material such as cables and wires is provided. The apparatus includes a main frame structure, a cutting blade supported on the main frame and adapted to cut the elongated material, a material feed path extending between an entrance of the apparatus and the cutting blade and at least one roll supported on the frame and spaced a first distance from the feed path. A mechanism is provided for varying the distance between the roll and the feed path. A guiding shoe is further provided for guiding the elongated material between the roll and the cutting blade with respect to the feed path. The guiding shoe has at least one guide surface in the vicinity of the roll and the cutting blade. The guide surface is spaced from the feed path by a distance which is larger than the first distance at any time. A mechanism is also provided for varying the spacing of the guide shoe from the feed path.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: June 12, 1990
    Assignee: Schleuniger USA Inc.
    Inventors: Arthur A. Haines, Peter G. Doyon
  • Patent number: 4719831
    Abstract: An apparatus and method for maintaining control over the orientation and position of the trailing end of a slab of bacon as the trailing end passes through a continuous bacon slicer, which apparatus and method involve depending from a linkage supported about multiple centers a controlled-rotation grip having backward-facing teeth, to serve to permit the grip to be maintained next to the slicing plane of the slicer even as the position of the lockable rotatable grip is vertically adjusted to accommodate bacon slabs of various thicknesses.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: January 19, 1988
    Assignee: Conagra, Inc.
    Inventor: James P. Smithers
  • Patent number: 4719832
    Abstract: An adjustable cutter apparatus for longitudinally slicing thin sheet materials such as copper foil used in stained glass processing has the coil mounted on a roll from which it is pulled through a guideway across a cutter blade. The guideway is defined between adjustable guide plates the spacing and locating of which can be adjusted relative to the cutter blade to suit different width foils and different widths of cut.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: January 19, 1988
    Inventor: Blazej Svihra
  • Patent number: 4713993
    Abstract: A table saw guide or fence for maintaining a workpiece in position parallel to the plane of a saw blade, in which the guiding edge is capable of initial adjustment in direct contact with a planar surface of the blade, and is maintained in such condition until a parallelogram linkage is secured to the saw table, following which the guiding edge may be released and moved over the surface of the saw table without loss of parallel relation relative to the saw blade, and selectively fixed in position at a location corresponding to the desired width of the cut workpiece.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: December 22, 1987
    Inventor: Robert H. Litowitz
  • Patent number: 4644834
    Abstract: A feed lever and a lateral stop with individual guide members spaced apart and arranged in slot-shaped grooves of the metal feed table supported so that they can be raised and lowered on a support. The guide members are each equipped with a guide body possessing a lateral stop in the form of a roller. These rollers come up against the edge to be guided of the sheet metal plate. A guide and clamping device is located alongside of each roller. The apparatus allows sheet metal plates to be accommodated, spaced apart from one another in several stacks, these sheet metal plates being cut at different locations on the cutting knife.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: February 24, 1987
    Assignee: Hammerle AG
    Inventors: Eduard Hanni, Marcus Zweili
  • 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: 4499933
    Abstract: A manual work-feeding device and guard body for a shaping machine. The device provides direct access to the cutting tool and further provides for in-process visual inspection while protecting the operator from injury.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: February 19, 1985
    Inventor: Monty R. Thompson
  • Patent number: 4469318
    Abstract: A device for holding a work piece against a table while urging it against a guide fence when the work piece is being operated on by a table saw or the like having a pair of wheels rotatably mounted on a plate member supported on the end of first and second arms, the other ends of which are held by a frame member with a spring member extending from one upper arm to the opposite lower arm, the arms forming a parallelogram and being rotatably mounted to apply force to pressure the wheels against the table, the frame being at an angle to the guide fence so that the wheels are at an angle towards the fence in the direction of the movement of the work piece.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: September 4, 1984
    Inventor: Fred M. Slavic
  • Patent number: 4369684
    Abstract: An improved apparatus for cutting strip material is disclosed in which a strip (16) such as flattened plastic tubing is intermittently fed across a cutting edge (64, 66) mounted on a rotatable platform (34). A cutting element (84098) is moved back and forth along the cutting edge to sever the strip into segments having a leading edge at one angle to the axis o- the strip and a trailing edge at another angle.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: January 25, 1983
    Assignee: General Electric Company
    Inventors: Gifford T. Perman, David A. Poff
  • 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: 4176570
    Abstract: The horizontal platform between the feed roll nip and the rotary cutter pelletizing nip in a dicer is arranged to feed soft, limp webs of plastic without crumpling, buckling or sidewise movement by providing a multiplicity of closely spaced ribs and grooves on both the platform and on the hold down fingers, extending in the direction of feed. Friction is thus reduced in the feed direction while sidewise control is maximum for a given feed resistance. To prevent the soft plastic from wrapping around the lower feed roll it is formed with a multiplicity of small diamond protuberances separated by channels.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: December 4, 1979
    Assignee: Bolton-Emerson, Inc.
    Inventor: Clement A. Hutchins
  • Patent number: 4169400
    Abstract: A cutter for the armor of a BX cable or the like wherein the cable to be cut is held firmly in a cable guide by a manually actuated cable clamp, the clamped cable being movable into armor-cutting engagement with a fixed power driven circular saw, and means for fine adjustment of the cable, clamp and saw being provided.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: October 2, 1979
    Inventor: Lucien C. Ducret
  • Patent number: 4030387
    Abstract: In the cutting of asbestos sheet or the like, the sheet is supported on a bed and a cutting blade is advanced through the sheet and through a narrow slot in the bed below the sheet. The cutting edge of the blade has a flat transverse profile so that the sheet is cut by the action of the blade in shearing from the sheet a strip of the same width as the blade. The cutting edge preferably makes a constant angle with sheet at the point of shearing as it moves through the sheet.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: June 21, 1977
    Inventor: Norman Alan Finnimore
  • Patent number: RE34994
    Abstract: A jig adapted for use with a conventional molder-planer for cutting work on curved wood sections. For this purpose, the present invention includes a base with the jig mounted thereon. The base bolts onto the table of the molder-planer so that the jig is positioned directly under the molder-planer cutter head. The jig is comprised of a set of two guide wheels permanently mounted in a side-by-side relationship on one side of the plate, and two adjustably mounted pneumatic cylinders, each with a guide wheel bolted to the end of the piston rod, mounted opposite to the permanent guide wheels.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: July 11, 1995
    Inventor: Robert L. Bonyman