Tool Rests Patents (Class 142/49)
  • Patent number: 9297629
    Abstract: The invention is a contour standard, which consists of a body having a rotationally symmetrical calibration region. The rotationally symmetrical calibration region encompasses a plurality of non-cylindrical axial sections, which can be concave, convex, by forming a predefined angle as radial projection or as radial depression. The calibration region has at least one measuring section, which runs parallel to the longitudinal axis of the body and which provides for axial calibration variables, as well as radial calibration variables. These calibration variables are compared with the sensed values to the calibration of a measuring instrument and the measuring instrument is adjusted based on the basis of the determined deviation. Due to the rotationally symmetrical calibration region, the contour standard is suitable both for the calibration of touch contour measuring instruments and also for the calibration of contour measuring instruments, which measure optically.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: March 29, 2016
    Assignee: Carl Mahr Holding GmbH
    Inventors: Thomas Kohler, Gerhard Wolf
  • Patent number: 8950449
    Abstract: A cutter head for surfacing a flitch, the cutter head including a shaft, a blade non-rotatably mounted on the shaft, wherein the flitch is surfaced by rotating the blade, a bushing including a bore, wherein the shaft runs through the bore, wherein a flange is eccentrically formed about the bore, a guide mounted on the flange of the bushing, wherein the flange axially offsets the guide with respect to the shaft, wherein the guide is arranged to support the cutter head against the flitch while the cutter head is surfacing the flitch, and wherein a radial distance between a tip of the blade and the guide determines a cutting depth of the cutter head, and wherein due to the guide being mounted on the eccentrically formed flange, the radial offset is determined based on a rotational orientation of the bushing about the shaft.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: February 10, 2015
    Assignee: Merritt Machinery, LLC
    Inventors: Arlington Ruff, Clifford Ruff, Mark J. Zirnheld, Michael T. Smith
  • Patent number: 8708007
    Abstract: A hand-held cutting tool for use in cutting a turning timber workpiece, the cutting tool including a handle end, a tool shank having a width and a height wherein the width is greater than the height, and a curved neck that includes a cutting head. The curved neck is integral to the tool shank and has a width and a height wherein the height is greater than the width. The tool shank defines a tool rest portion having a planar surface. The cutting head includes a top surface that is coplanar to the tool rest portion and defines a centrally disposed threaded bore for threadably receiving a replaceable carbide cutter. The cutting head and a length of the tool shank extend parallel to each other and parallel to a longitudinal axis.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 29, 2014
    Inventor: Craig Jackson
  • Publication number: 20130074988
    Abstract: A toolrest mechanism for a wood turning lathe includes a banjo, a carriage, a first threaded element, a second threaded element and a toolrest. The carriage is divided into two clamping elements facing each other by a slot formed therebetween, and the clamping elements can be drawn together by operating the threaded elements, so as to adjust the carriage from an initial, release position toward a clamping position. The toolrest has a toolrest portion and a shaft. The shaft is allowed to move axially within the slot while the carriage is at the release position, and the shaft is disallowed to move axially within the slot while the carriage is at the clamping position.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventor: Calvin CHOU
  • Publication number: 20120291600
    Abstract: A hollow turning device comprises a tool handle, a cutting bar extending from one end of the tool handle having a longitudinal axis and a cross section at least a portion of which is non-circular, and a cutting tool disposed at a distal end of the cutting bar. A tool rest is disposed adjacent the work piece. A torque arrestor has a pair of spaced apart cooperating rollers between which the cutting bar extends, the cooperating rollers being spaced apart to fittingly receive and restrain the cutting bar to allow motion of the cutting bar between the cooperating rollers to facilitate motion of the cutting tool within the hollow to shape the inside of the work piece, wherein the non-circular portion of the cutting bar cross section prevents vertical movement and rotation of the cutting bar along its longitudinal axis when the cutting tool engages the work piece.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Inventors: Leland T. PEREZ, Jeffrey S. Folkert, Michael B. Baird
  • Publication number: 20100139808
    Abstract: This is a tool device called a Special Articulating Tool Holder for a Lathe. The device provides a new and unique device to permit deep hollowing of wood or other materials with a controlled, repeatable method. The preferred embodiment of the device is comprised of multiple (two or more) articulating joints—the first of the multiple articulating joints is secured to a tool holder with features to hold cutting tools—and the last of the multiple articulating joints is secured to an essentially vertical mounting post. The mounting post is held in place by a base means which mounts either horizontally or vertically to the machine base as determined by the machine configuration.
    Type: Application
    Filed: November 24, 2008
    Publication date: June 10, 2010
    Inventors: Ray P. Thompson, Jerry A. Arnold, Wayne A. Crandall
  • Patent number: 7264028
    Abstract: A cutting tool piece is provided including a rear portion and a lead portion, the lead portion including a front section having an upper side angled downwardly and forwardly and a lower side angled upwardly and forwardly to form a transverse lead cutting edge. The rear portion includes a hole to secure the tool piece to a cutting tool and transverse cutting edges extending outwardly from side walls of the front section. A system is also described for cutting a bowl by coring out an interior portion of a wood block by applying the cutting tool which is curved and rotatably mounted to a post. Its lead end with the tool piece attached creates a circular groove. The cutting tool is advanced on a path which curves toward the central axis of the lathe.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: September 4, 2007
    Inventor: Tymen Clay
  • Patent number: 7191689
    Abstract: A hollowing system for a lathe having a tool rest. The hollowing system comprises a boring member, and a stabilization assembly. The boring member is adapted to support a tool such that at least one of the boring member and the tool extend past and engage the tool rest. The stabilization assembly is mountable adjacent to the lathe. The stabilization assembly supports the boring member such that the boring member extends generally parallel to a longitudinal axis of the lathe. The stabilization assembly has a vertical axis and a horizontal axis. The stabilization assembly is adapted to prevent downward movement of the tool when the stabilization assembly is mounted adjacent to the lathe and the tool is positioned on the tool rest. The stabilization assembly is provided with an articulation assembly.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: March 20, 2007
    Assignee: TSDr, L.L.C.
    Inventor: Keith Clark
  • Patent number: 7032633
    Abstract: A cutting tool piece is provided including a rear portion and a lead portion, the lead portion including a front section having an upper side angled downwardly and forwardly and a lower side angled upwardly and forwardly to form a transverse lead cutting edge. The rear portion includes a hole to secure the tool piece to a cutting tool and transverse cutting edges extending outwardly from side walls of the front section. A system is also described for cutting a bowl by coring out an interior portion of a wood block by applying the cutting tool which is curved and rotatably mounted to a post. Its lead end with the tool piece attached creates a circular groove. The cutting tool is advanced on a path which curves toward the central axis of the lathe.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: April 25, 2006
    Inventor: Tymen Clay
  • Patent number: 6000447
    Abstract: A mechanism for clamping a banjo (10) toolrest or toolrest bracket to a lathe bed (51) which makes use of a sliding cam (40) which is actuated by a drive shaft (18). The cam is supported independently of the drive shaft by a support block (12) resting on a ledge (14) wich is formed in the base of the banjo. The cam is slidable with respect to the drive shaft along the length of this ledge on the banjo. This structure allows for sturdy clamping with minimal deflection at a predicable catching position along the length of the banjo rest. An eye bolt (20) is used to connect the cam to a clamping plate (22) which is positioned below two, spaced-apart rails (50) extending along the top of the lathe bed. The banjo rest has a generally open bottom (94) through which the shank of the eye bolt extends. Opposite ends of the drive shaft are rotatably supported by end walls (74, 76) of the banjo rest.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: December 14, 1999
    Inventor: Tymen Clay
  • Patent number: 5992482
    Abstract: A tool rest, for attaching to a lathe or wood turning apparatus, in which a pillar for is mounted rotatable about a first vertical axis and has a first horizontally-projecting arm and further has a second horizontally-projecting portion rotatable about a second vertical axis which may be coincident with or spaced horizontally from the first vertical axis. In use, the tip of a cutting tool is rested on the horizontal arm the tool is also rested on the second horizontal portion where it is firmly held in place by the user.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: November 30, 1999
    Inventor: Nigel Stuart Voisey
  • Patent number: 5839333
    Abstract: A manually directed lathe tool system for removal of internally disposed material and creating a void inside a lathe turned form. As shown in FIG. 1, an articulated boring bar (32) of a tubular crosssection is slidably manipulated and supported by a plane surface (140) during a cutting action. To increase offset cutting ability several different lengths of a detachable and hinged arm assembly (40) are used. Arm assembly can be fixed or moved to three different positions relative to boring bar (FIG. 2) by manipulating a hand knob (36). A moveable and replaceable cutting tool (198) is held at the end of the arm assembly. A wall thickness caliper system (44) which ends in a tip (130) of some flexible material to allow operator appraisal of the internally disposed cutting tool's position.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: November 24, 1998
    Inventor: Hugh E. McKay
  • Patent number: 5515894
    Abstract: A multiuse craftsman table comprising a tool table and a plurality of specific tool accessories to perform a variety of operations on wood work pieces according to known machining operations. Each specific tool accessory can be assembled, one at a time, to the tool table to perform its respective operation on one of the work pieces.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: May 14, 1996
    Inventor: Scott A. Dunn
  • Patent number: 5503200
    Abstract: A shaft tapering device having a body block with a transverse borehole through which the shaft to be tapered is introduced. A recess in the top of the body block intersects the borehole, forming an aperture into which a cutting blade extends substantially tangential to the curvature of the borehole. A cradle attached to the body block includes a pair of parallel wing-like members spaced apart by spreaders at each end of the wings, which are pivotably mounted to the body block. Each wing has a notch formed in the upper edge thereof that is semicircular in the deepest part and on pivoting the wings the deepest part of the notches can be substantially aligned with the borehole.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: April 2, 1996
    Inventor: Michael F. Lea
  • Patent number: 5441089
    Abstract: A guiding assembly is described for guiding a manually controlled cutting tool relative to a lathe axis. The guiding assembly includes a longitudinally extending tool rest (12) which can be fixed to a lathe by mounting spigots (17,18) and which is fixed to a longitudinally extending guide (13) along which a cutting tool mount (42) can freely slide. The cutting tool (27) slides freely within the mount (42). A follower (29) is attachable to the cutting tool to follow a template (16) mounted on the tool rest (12).
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: August 15, 1995
    Inventor: Jim Lazarou
  • Patent number: 5224529
    Abstract: A lathe tool and toolrest assembly is disclosed in which a cutting blade is attached across one end of a blade mounting shaft, which shaft may be rotated and/or slid lengthways with respect to the sleeve portion of a toolrest comprising a T-bar. A handle is attached to the other end of the blade mounting shaft for manipulating the tool. The tool may be used to remove a cylindrical core from a workpiece mounted on the lathe, or successively smaller cores so as to produce a set of nesting bowls. A set of blade attachments is also provided to hollow out a cylindrical core through a narrow opening in a workpiece. A frusto-conical core may be removed from a workpiece in conjunction with a double T-bar toolrest which serves as a universal joint when manipulating the tool.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: July 6, 1993
    Inventor: Joseph A. Kenny
  • Patent number: 4998572
    Abstract: A stabilizer is provided for attachment to the generally flat bar of a wood turning tool. The stabilizer comprises a generally cylindrical sleeve having a central axially extending slot sized to receive the flat bar of the tool. The tool and stabilizer combination is rotatably supported on a tool rest associated with a lathe, such that the combination contacts the tool rest at a point that is vertically aligned with any point along the cutting blade of the cutting tool, substantially eliminating any rotational torque that could otherwise be generated as the cutting tool is moved into cutting engagement with the turning wood.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: March 12, 1991
    Inventor: Richard Lukes
  • Patent number: 4924924
    Abstract: A system of hand-held lathe tool assemblies especially for executing large scale deep and/or hollow work efficiently and rapidly while minimizing operator fatigue. Tool working portions may be integral with their carriers or holders or may be selectively connected to them by means of a conventional chuck or collet. The butt portions of very long lathe tool assemblies permit the turner to apply forewarm and/or upper body to the tool and gain sufficient leverage to work comfortably and hence with enhanced control while performing large scale work with tool reaches from rest to tool cutting point as high as 36 inches in length. A "slicer" tool facilitates separation (and conservation) of large volumes of material without comminution in the rough shaping stages of work. Other tool forms are disclosed.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: May 15, 1990
    Inventor: Dennis K Stewart
  • Patent number: 4899793
    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.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: February 13, 1990
    Assignee: Shopsmith, Inc.
    Inventors: Steven A. Snyder, Jack Smith, David D. Flora, Robert L. Bartlett
  • Patent number: 4848422
    Abstract: In the apparatus a workpiece is rotated in a fixed position about an axis. A template is aligned with and spaced to one side of this axis. A platform is positioned above the workpiece and hinged on the other side of the axis so that it can be pivoted and thereby raised and lowered relative to the workpiece. The platform can also be caused to move along the axis of the workpiece and as this occurs, a tracing pin on the platform causes the platform to be raised and lowered in response to changes in the upper contour of the template. A rotary saw or like rotary cutting blade device is mounted on the platform above the workpiece so that the cutting blade can be brought into contact with and moved along the upper portion of the rotating workpiece to cause the workpiece to be shaped. Preferably the blade and the workpiece rotate in the same direction so that they are moving in opposite directions at the point or zone where they contact each other.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: July 18, 1989
    Assignee: Michael J. Chiantella
    Inventor: Michael J. Chiantella
  • Patent number: 4664164
    Abstract: A lathe cutting tool support and suction cleaning device for woodlathes is provided, comprising a box enclosure having an open interior for reception of wood cuttings generated by a lathe cutting tool working on a wood workpiece, the box enclosure being elongated to extend for at least a substantial portion of the long dimension or length of the wood workpiece, the box having at least a portion of one side formed to support a lathe cutting tool in working against the wood workpiece lengthwise thereof; an elongated opening in close juxtaposition to the side support communicating into the interior of the box for passage of wood cuttings generated by the lathe cutting tool into the interior; and a suction conduit communicating into the interior of the box for removal of wood cuttings therefrom.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: May 12, 1987
    Inventor: Lennart Ulander
  • Patent number: 4615365
    Abstract: The present invention provides a tool support for a hand held wood turning tool. The tool support includes a parallel sided elongated slot through which the tool extends during use and which restrains rotational movement of the tool about its longitudinal axis. The support also includes a planar support surface in front of the slot and provides additional tool support.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: October 7, 1986
    Inventor: Harry L. Arnall
  • Patent number: 4611644
    Abstract: A combination manual and automatic tracer lathe for cutting a work piece as disclosed. A cutting means for the work piece is movable longitudinally along the work piece and laterally movable into and out of engagement with the work piece while following a pattern. The pattern can be computer generated or mechanically generated with a pattern model. With either model, the cutting means is moved back and forth longitudinally along the work piece as successfully deeper or new cuts are made in the work piece according to the model.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: September 16, 1986
    Inventor: Robert W. Larson
  • Patent number: 4502517
    Abstract: A safety tool rest for a lathe having a rotating workpiece is disclosed. The tool rest includes a generally planar base which is attachable to the lathe. An elongate flange projects upwardly and outwardly from the base and has an upper edge which is disposed adjacent the rotating workpiece. A tool for cutting the workpiece rests on top of the upper edge of the flange. An elongate bar is attached to the base but is located above the base at a height higher than the upper edge. In this manner, the tool is inserted below the bar and over the upper edge for cutting the workpiece. The tool is prevented from being flipped about the upper edge during contact with the rotating workpiece by the bar. Preferably, the bar is vertically adjustable relative to the base to accommodate different sized tools. This adjustment is provided by two threaded bolts which pass through the bar and engage the base. A spring is provided around the bolts to urge the bar away from the base.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: March 5, 1985
    Inventor: Robert W. Larson
  • Patent number: 4491162
    Abstract: A hand held duplicator tool which provides very stable and accurate operation for duplicating on a wood turning lathe the configuration of a pattern held on the lathe. The duplicator tool includes a movable platform that is moveably supported on a table surface where the table is quickly and easily attached in position on a wood lathe frame to provide a support for moving the tool. The tool can be adjusted for height and used easily and stably in duplicating parts. Additionally, a shield over the workpiece is used in combination with the tool and includes a slot to permit the duplicator tool to be inserted against a workpiece. A vacuum supply is connected to the shield to carry dust, shavings and the like away from the workpiece.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 1, 1985
    Assignee: Toolmark Co.
    Inventor: Robert A. Holdahl
  • Patent number: 4133357
    Abstract: A rest for a hand held wood turning tool which facilitates the forming of concave and convex surfaces has a horizontal rest bar comprising two joined and oppositely curving arcuate portions of different curvature in the general form of a letter "S," with a bevelled tool rest surface extending continuously along one side thereof and an intermediately positioned downwardly extending cylindrical mounting post. A simplified modification has a single horizontal arcuate rest bar with bevelled tool rest surfaces extending along both sides.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: January 9, 1979
    Assignee: Emerson Electric Co.
    Inventors: George J. Groya, Curtis J. Eccardt
  • Patent number: 4126165
    Abstract: A cutter for cutting wood is adjustably mounted in a handle and extends beyond the handle at a first end of the handle. A cutter positioning device in the handle is coupled to the cutter in the handle and has a manually operable part extending from a second opposite end of the handle for selectively positioning the cutter relative to the first end of the handle. A gage for maintaining a selected space between the cutter and a workpiece is adjustably mounted in the handle at the first end thereof. A diverting device in the handle diverts wood particles cut from a workpiece by the cutter to a side of the handle.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: November 21, 1978
    Inventors: Gelas S. Guignard, Joseph E. Bertin
  • Patent number: 4082126
    Abstract: A process for manufacturing a plurality of concentric, cylindriconical, annular rings from plywood or other wood material for use in constructing cylindriconical wood products.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: April 4, 1978
    Inventor: Robert W. Bebout
  • Patent number: 4063577
    Abstract: A tool holder for use on a wood lathe provided with a bed rail and a support block slidably mounted thereon comprises an arm and mounting means mounting one end of the arm on the block in an outwardly extending direction. A sleeve fixed to the other end of the arm transversely thereof rotatably and slidably receives a post. A clamp associated with the sleeve fixes the post in a selected position of sliding and rotational adjustment. An adjustable ram is fixed on the outer end of the post transversely thereof. A knife block attached to the inner end of the ram mounts a knife in operative position with respect to the work.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: December 20, 1977
    Inventor: Larrie A. Tennant
  • Patent number: RE31130
    Abstract: A process for manufacturing a plurality of concentric, cylindriconical, annular rings from plywood or other wood material for use in constructing cylindriconical wood products.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: January 25, 1983
    Assignee: John Totten
    Inventor: Robert W. Bebout