And Means To Rotate Tool Patents (Class 83/488)
  • Patent number: 5307716
    Abstract: A sheet material cutter which cuts a sheet material by the cooperation of a circular rotary cutting blade moving while rotating and a long sheet-shaped fixed cutting blade, and provides a sheet material cutter, having a simple construction. The device permits satisfactory cutting of a strip-shaped sheet material such as paper by simply causing the rotary cutting blade to incline by an angle necessary for cutting, both in forward and backward motions of the rotary cutting blade, by the cooperation of the circular rotary cutting blade moving while rotating, a roller for rotating this rotary cutting blade and a roller guide.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: May 3, 1994
    Assignees: Onishilite Industry Co., Ltd., Sumitsu & Co., Ltd.
    Inventors: Takamasa Onishi, Zentaro Kamura
  • Patent number: 5305671
    Abstract: A universal coil cutter for reclaiming dynamo electric machines. Specifically to cut-off the end turns of the coils of stators, rotors or armatures. The coil cutter consisting of a direct drive cutter(16), spindle and motor(15) and motor driven carriages for the x-axis(22) and the y-axis(12). The above are controlled with a joystick(10) and operate in a third plane on the z-axis(21). The table (17) is used to support the stators which are being reclaimed. Adjacent to the table(17) is a carriage with base(25) and journal (27) and rotor drive motor (23). Attached thereto a rotor drive pulley(24). The rotor belt tensioner(26) takes up slack in the drive belt which loops over and around the rotor and the drive pulley(24).
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: April 26, 1994
    Inventor: Theodore C. Wachs
  • Patent number: 5253400
    Abstract: Horizontal motorized drive rods in an upright rectangular frame control the movement of vertical guide rods in the X direction of the frame. Motorized guide rods move a router on a movable mount along the Y direction. A plungeable router, spring-mounted on the guide rods, is moved adjustably into the plane in the Z direction. The router removes glazing from a window sash and cuts deeper into the rabbit joint of the sash to allow double pane glass to be inserted into the sash. A rotary saw, with blade depth adjustment is swivel mounted to another vertical guide for cutting a slot in both vertical and horizontal rabbit joints to receive glazing beads. Pins rigidly mounted in front of and behind the cutting edges of the rotary saw blade act as guides and stops for the saw. Horizontal threaded rods with opposing right and left threads on either side of the center of the horizontal rod forms a centering device.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: October 19, 1993
    Inventor: James A. Conachen
  • Patent number: 5245899
    Abstract: A crosscutting device for webs of material, particularly textile webs includes a web feed with a web buffer arranged on a common frame with the cutting station, a cutting station with a rotating disk cutter, driven transport nippers and a tray for stacking the cut material, the rotating disk cutter being automatically moved back and forth across the web by means of a disengageable belt in one of the operating modes and in a second operating mode the disk cutter being movable manually across the web and at the same time also in the running direction of the web.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: September 21, 1993
    Assignee: Carl Schmale GMBH & Co. KG
    Inventor: Peter Rohe
  • Patent number: 5205197
    Abstract: A pallet-cutting machine for selectively removing individual components of a load-bearing pallet.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: April 27, 1993
    Assignee: GKN Chep Limited
    Inventor: Cecil K. Wiltshire
  • Patent number: 5179883
    Abstract: An apparatus for finishing wood (cants) comprises a circular saw (6) which can be reciprocated (double arrow 7) in the cutting plane (11), and several clamping trestles (1) for holding the piece of wood to be divided, these trestles being adjustable perpendicularly to the cutting plane (11) in order to set the cutting position. Furthermore, supports (3) are provided for the wood, wherein the lower clamping jaws (2) of the clamping trestles (1) can be lowered underneath the supports (3). The saw (6) is designed for forward and rearward cutting so that, with each stroke of the saw, a cut can be executed. For feeding the pieces of wood to be divided, inclined conveyor belts (13) are provided which deposit the pieces of wood on lifting tables (12), the latter then placing such pieces onto the supports (3) for the wood.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: January 19, 1993
    Inventor: Hans Payr
  • Patent number: 5179886
    Abstract: The radial beam arm saw table has been designed to be combined with a conventional circular saw so that various types of cuts may be performed on sheets of wood when they are supported on its work platform. The saw table has a portable stand with structure for supporting a vertical post member having a support arm extending from its top end. A radial beam has one of its ends pivotally secured to the front end of the support arm about a vertical axis. A carriage is reciprocally mounted to travel axially along the length of the radial beam and it has a carriage platform pivotally secured thereto about a vertical axis. A bevel platform is pivotally secured to the carriage platform about a horizontal axis. A handle adaptor is pivotally secured to the bevel platform about a horizontal axis and it has a leg portion to which the handle of a circular saw may be detachably secured.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: January 19, 1993
    Inventor: Marvin E. Rathje, Jr.
  • Patent number: 5176060
    Abstract: An apparatus for simultaneously miter angle cutting to length the end of a wood truss web includes an upright frame having a workpiece guide path, horizontally extending through the frame. A pair of superposed angled saw blades are moved vertically by a pressure cylinder across the workpiece path which severs the workpiece to form a truss web to length while simultaneously miter angle cutting its ends on predetermined angles.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: January 5, 1993
    Inventor: Jack L. Thornton
  • Patent number: 5159869
    Abstract: A cutting station comprising a bed; a work surface supported on the bed; a carriage traveling along the longitudinal axis of the bed by virtue of a first motor; two cutting members connected to two second motors; and a structure supporting the cutting members and second motors, and designed to travel, by virtue of actuators, along vertical slideways supported on the carriage, and to be carried by the carriage during traversing of the same. The bed comprises two fixed parallel beams supporting the work surface, and a first of which also supports two horizontal slideways for supporting and guiding the carriage. The center of gravity of the second motors lies within the space defined between the horizontal slideways.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: November 3, 1992
    Assignee: Selco S.r.l.
    Inventor: Renzo Tagliaferri
  • Patent number: 5158124
    Abstract: A machine for cutting off the waste end portions of semi-circular or semi-elliptical members used for framing windows. The curved members are held in the desired fixed relationship by clamping members and saw mechanisms are transversely movable adjacent each end to perform the cutting action. When two halves are to be cut simultaneously they are clamped in transversely spaced relationship so the ends are cut during one pass to insure that the two halves will accurately form a full frame assembly.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: October 27, 1992
    Assignee: Aluminum Company of America
    Inventor: John W. Lewis, Jr.
  • Patent number: 5079941
    Abstract: A temper mill installation for steel strip has an uncoiler, a rolling mill for the strip, a shearing machine for cutting the strip to remove damaged turns at the end of a coil and a coiler for coiling the strip after rolling. To avoid wastage of sheet, the shearing machine has a movable shearing head and is positioned adjacent the strip path between the uncoiler and the rolling mill. The shearing head is movable across the strip path to effect cutting of the strip.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: January 14, 1992
    Assignee: Hoogovens Groep BV
    Inventors: Jan F. De Blok, Johannes C. Korver
  • Patent number: 5042349
    Abstract: A cutter for cutting sheets of material, paper and the like comprises a cup-type main rotary blade and a sub-rotary blade. The main rotary blade is supported by a main rotary shaft and has an edge part for performing cutting. The sub-rotary blade is rotationally responsive to rotational movement of the main rotary blade, has an edge part for performing cutting and is rotatably disposed to face the main rotary blade. A holding mechanism rotatably holds the main and sub-rotary blades so that the respective edge parts face each other in an overlapping manner. The holding mechanism is motor driven to enable the mechanism to move toward or away from the cutting work. A wire and pulley arrangement coupled to the holding mechanism functions to cause the main rotary blade to rotate as the holding mechanism is caused to move. A coil spring or a pair of plate springs bring the edge parts of the main and sub-rotary blades into press contact.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: August 27, 1991
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventor: Fumito Komatsu
  • Patent number: 5007319
    Abstract: A dispenser for plastic wrap material including a housing for storing a spirally wound supply roll of plastic wrap and a mechanism for cutting a quantity of plastic wrap from the supply roll with the dispenser including a discharge slot for the plastic wrap material, a powered rotary cutter mounted on a carriage supported and guided for movement transversely of the path of the plastic wrap material and a structure which enables the plastic wrap material to be pulled off of the supply roll out through a discharge slot with the structure including a door which precludes accidental contact with the rotary cutter thereby providing an efficient and safely operated plastic wrap dispenser.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: April 16, 1991
    Inventor: Joseph M. Armbruster
  • Patent number: 5001955
    Abstract: A movement and rotational movement of the movable blade of the paper-cutter of this invention is constructed with a mechanically engaging mechanism such as a screw mechanism or a pinion/rack mechanism, so that there are no technical problems found with the conventional type of the paper-cutters such as slackening and/or cutting-off of the wire and coming-off of the wire from the drum. Moreover, since it is not necessary for an additional means for providing tension force on the wire, a longer-term stable cutting operation can be achieved. Furthermore, since the fluctuation in the manufacturing accuracy and deformation caused during the production process of the screw grooves as well as case body itself can be controlled and minimized by the screw mechanisms to some extent, the strict requirements for components accuracy can be reduced, resulting in an effective cost-down.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: March 26, 1991
    Assignee: Sumitsu & Company, Limited
    Inventor: Toshio Fujiwara
  • Patent number: 4960025
    Abstract: An apparatus for slicing sticks of meat and applying the meat slices to a pizza for utilization in mass producing pizza is disclosed. The meat slicing apparatus 8 comprises a ring 24 having an inner cutting surface 25 and a platter 26 in spaced relationship below the ring opening 24a. The meat slicing apparatus 8 provides a motor 22 and a belt 28 for rotating the ring 24, and a hopper 16 for delivering meat sticks through the ring opening 24a onto the platter surface 26. The meat slicing apparatus also provides a mechanism for moving the ring 30 and platter 26 relative to the hopper 16 to cause the inner cutting surface 25 of the ring 24 to slice the meat stick.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: October 2, 1990
    Inventor: Clifford E. Fitch
  • Patent number: 4888083
    Abstract: A laminator is disclosed in which a cutter unit is provided so that a cutter is moved across the direction of feed of a continuous thin film to cut off the film to a prescribed size and the film cut off by the cutter unit is laminated on a substrate. A shock absorber for absorbing a shock which takes place when the movement of the cutter of the cutter unit is stoped is provided at a prescribed portion near the stopped position of said cutter or near the prescribed portion of the body of said laminator.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: December 19, 1989
    Assignee: Somar Corporation
    Inventors: Sigeo Sumi, Fumio Hamamura, Ichio Fukuda
  • Patent number: 4870882
    Abstract: Mechanism for controlling the rate of travel of a saw as the saw operates and travels upon a radial arm. A housing contains fluid and an axially movable piston and piston rod. A wheel is operably joined to the piston rod and is connected to the piston rod so that the piston rod moves axially as the wheel rotates. A cable is wound upon the wheel and extends from the wheel and is connected to the saw. As the saw is moved upon the radial arm the cable rotates the wheel, and the wheel forces axial movement of the piston rod and the piston. Movement of the piston forces movement of fluid within the housing. The pressure of the fluid controls the rate of axial movement of the piston and the piston rod and controls the rate of rotary movement of the wheel. Thus, the rate of travel of the cable and the rate of travel of the saw are controlled by the rate at which the piston travels as the piston moves fluid within the housing.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: October 3, 1989
    Assignees: Albert David Kyte, Robert L. Faxon, Sr.
    Inventor: Robert L. Faxon, Sr.
  • Patent number: 4834062
    Abstract: A multi-blade inner hole saw for the sawing of crystal rods or blocks, such as solar cell base material on a silicon base, into thin wafers has saw blades arranged mirror-symmetrically with respect to the bearing on either side of a common drive cylinder. In the sawing operation, the workpieces are sawn synchronously by the saw blades.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: May 30, 1989
    Assignee: Wacker Chemitronic
    Inventors: Walter Frank, Gerhard Palme
  • Patent number: 4817483
    Abstract: A dispenser for sheet material supplied in a spirally wound roll such as paper towels, or the like, in which the paper web is fed from the supply roll by an electrically driven feed roller and an opposed spring biased feed roller follower for gripping and feeding the paper web through a discharge slot in a housing. A reciprocating cutter assembly is mounted adjacent the discharge slot and feed roller which includes a carriage with an electrically driven rotary cutter blade mounted thereon with the carriage being guided by a guide structure and propelled transversely of the path of the paper web by an electrically powered cable and drum arrangement.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: April 4, 1989
    Inventor: Joseph M. Armbruster
  • Patent number: 4813319
    Abstract: An apparatus and improved method for transversely cutting strips of deformable material with a rotating cutting blade which is moved generally transversely across the strip at a predetermined rake angle and bevel angle. A vacuum applied to certain chambers of a platen draws the strip firmly against a supporting structure at two locations on opposite sides of a cutting line during the cut cycle. A lubricant is sprayed through nozzles onto the blade as it cuts the strip and blow-off nozzles remove excess lubricant during the cut and return cycles of the blade to prevent contamination of the cut strip edges. A release bar assists in disengaging the strip from the platen after the strip is cut. Grippers remove the cut strip and then an input conveyor advances the remaining strip toward the cutting line where the grippers pull the strip forward to a predetermined position for the next cut cycle.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: March 21, 1989
    Assignee: The Firestone Tire & Rubber Company
    Inventor: Harley P. Weyand, Jr.
  • Patent number: 4792190
    Abstract: There is disclosed a machine including a powered truck-like vehicle having a support base and an apparatus mounted on the base for cutting a drive-in passage across a curbstone, a sidewalk or the like. The apparatus comprises two spaced parallel booms mounted at one end on the base and rail-structure-holding heads connected to the booms and displaceable along them. A rail structure including an elongated upper suspension member, having a non-circular cross section, is mounted on the heads by extension of the suspension member through rotary pillow blocks of the heads of which the cylinders have like non-circular bores. A linkage powered mechanism, interconnecting the heads and the suspension member, allows oscillation of the latter about its longitudinal axis and consequently oscillation of the rail structure of which it is a part. A power jack allows shifting of the rail structure laterally with respect to the booms.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: December 20, 1988
    Inventor: Ren/e/ Bertrand
  • Patent number: 4781094
    Abstract: A device for transversely cutting strips of deformable material, whereby a powered, rotary cutting blade is arranged with its outer edge substantially tangent with a surface supporting a strip of uncut material, and is designed to move, on a support, in a cutting direction transverse in relation to the strip itself; the aforementioned device embodying a pressure member designed to move with the blade in the cutting direction, and to press down, onto the supporting surface and during the cutting operation, the uncut portion of the strip located immediatedly ahead of the blade in the cutting direction.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: November 1, 1988
    Assignee: The Firestone Tire & Rubber Company
    Inventor: Massimo Moretti
  • Patent number: 4738573
    Abstract: A silicon wafer diffusion processing quartz boat carrier slot plunge cutter machine is provided that has a vertical rapid traverse power feed variable speed spindle with automatic stop switches controlling down feed and return with spindle speeds generally in the range of 3,000 RPM to 4,500 RPM for effective quartz slot cutting. Work piece table longitudinal and cross travel are manually driven with longitudinal travel for work piece to cutting tool alignment and cross travel being for indexing of specific slotting configurations. A fixed table support is adapted to mounting of various jig types for slotting as desired.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: April 19, 1988
    Inventor: Christian F. Johnson, Jr.
  • Patent number: 4691605
    Abstract: A cutter assembly (82) for cutting web material such as paper (80) includes a circular cutter (100) having an endless peripheral blade (102) mounted on a frame (92) on which also is mounted a tension roller in the form of a pulley (94). A smaller pulley (98) is mounted on and co-axial with the circular cutter 100, and a belt (96) is trained around the pulleys (94 and 98). The portion of the belt (96) on the tension roller (94) provides an engagement surface adapted to engage the paper (80) so that movement of the cutter assembly (82) causes rotation of the tension roller (94) and thus faster rotation of the circular cutter (100). This results in efficient cutting of the paper (80) and high cut quality because the tension roller (94) prevents bunching of the paper (80) in the vicinity of the endless blade (102).
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: September 8, 1987
    Assignee: Sanders Associates, Inc.
    Inventors: Anatoly Vanetik, Brian C. Preston
  • Patent number: 4676130
    Abstract: A carriage on the frame of a lumber edger is driven on tracks longitudinally from one limit to another. Two motors are arranged with their corresponding output shafts coaxial and facing each other. A saw blade is mounted to each shaft. The motors are mounted to laterally extending tracks on the carriage and actuators are provided for shifting the motors, and hence, the parallel saw blades toward and away from each other so that when the saws are translated longitudinally they will rip the irregular edges from a board. A chain conveyor runs through the machine frame and transports the boards to a position under the saws with the length of the boards directed longitudinally. When a rough board arrives under the saws the lines along which the saws will cut are marked on the board with parallel laser light beams. The saws are shifted laterally until the light lines are just inside of both rough edges.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: June 30, 1987
    Assignee: Filer & Stowell Co., Inc.
    Inventor: Michael D. Nutt
  • Patent number: 4669348
    Abstract: A machine saw comprises a machine frame, a slotted flat plate rotatable about a vertical axis and serving to receive a workpiece to be sawn, a motor-driven circular saw blade which is rotatable about a horizontal axis of rotation and is adapted to be passed upwards through the slot in the rotatable plate from beneath during sawing, a clamping bridge which is fixed in relation to the frame and spans the rotatable plate and a clamping device mounted by the bridge for clamping a workpiece on the rotatable plate. Part of the clamping device is formed by a clamping jaw movable vertically upwards and downwards and adapted to be set down onto the workpiece, this clamping jaw being rotatable about the axis of rotation of the rotatable plate and displaceable at right angles to this axis of rotation in a sliding guide means.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: June 2, 1987
    Assignee: Chr. Eisele Maschinenfabrik GmbH & Co. KG
    Inventor: Kurt Holder
  • Patent number: 4649617
    Abstract: A machine for disassembling all or a portion of wood pallets formed of paralleled stringers with deck boards, nailed to the top and bottom edges, the machine having a support arm onto which a wood pallet is positioned with a stringer in engagement with the support arm, the deck boards of the pallet extending to either side of the support arm, a carrier arm supported parallel to and spaced from the support arm, a hub slidable on the carrier arm, opposed cutter wheels rotatably supported to the hub, the periphery of the cover wheels being adjacent the opposed sides of the support arm, and a reciprocable cylinder-piston for moving the hub and therefore the cutter wheels to cut the nails holding the pallet deck boards to the stringer positioned on the support arm.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: March 17, 1987
    Inventor: Paul L. Hufnagel
  • Patent number: 4638695
    Abstract: An exhaust duct is arranged vertically slidably on a vertical board saw so that it always follows the vertical movement of the sawing unit during horizontal cutting. The exhaust duct is formed by a U-shaped profile, in which an endless driven band is guided. A slot provided in the band is located in front of the saw blade (S) in every position of the sawing unit; the sawdust thrown off by the saw blade thus passes through the slot into the space enclosed by the band and is exhausted. A sealing element is fitted on the front band side just in front of the slot. The apparatus ensures a virtually 100% discharge of the chips and sawdust in the case of horizontal cutting, which is of great significance particularly in sale rooms and exhibition rooms, and contributes to humane conditions in the workshop.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: January 27, 1987
    Assignee: Striebig AG
    Inventor: Ludwig Striebig
  • Patent number: 4631999
    Abstract: A board saw exhibits a frame on which a guide beam is horizontally slidable. A sawing unit is mounted with vertical mobility on the guide beam and is connected by a cable to a compensating weight. In order to absorb the reaction forces generated by the saw reliably in the immediate sawing region, a horizontal support beam is mounted for vertical displacement and likewise connected by a cable to a compensating weight. The installation is preferably wired so that the support beam follows automatically to the level of the saw blade when the sawing unit is pivoted into the horizontal cutting position.For an accident-proof support of the board (P), a row of support arms is provided on the upper girder of the frame and also on the movable support beam, and these support arms are arranged staggered so that when the support beam is raised they interlace comb fashion and ensure a correct accident-proof support of the board.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: December 30, 1986
    Assignee: Striebig AG
    Inventor: Ludwig Striebig
  • Patent number: 4586415
    Abstract: Apparatus for displacing a working member both vertically and rotationally is disclosed. A shaft is slidably mounted within a sleeve mounted for rotational displacement within a frame. A working member is secured to a hub which is secured to the shaft such that it may be both vertically displaced and rotationally displaced. A yoke assembly is connected between a vertical actuator and the shaft for effecting vertical displacement of the shaft without limiting rotational displacement. Additional means are provided for rotating the sleeve to effect rotational movement of the shaft. The sleeve is connected to the shaft such that rotational movement of one causes the other to rotate without limiting sliding displacement therebetween.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: May 6, 1986
    Assignee: Essex Group, Inc.
    Inventor: Christopher Pali
  • Patent number: 4584918
    Abstract: A portable sawmill is constructed to produce dimensioned lumber from logs in remote logging locations. The portable sawmill employs but a single, disk shaped rotating blade which is powered by a relatively low horsepower engine. The engine and blade are mounted upon a carriage which traverses the length of a log to effectuate first a horizontal cut and then a vertical cut with a single saw blade in returning along the length of the log. The blade is oriented for vertical cutting as it progresses along the track away from the operator. The orientation of the blade is automatically reversed at the remote end of the log. The saw blade then cuts the log while in a horizontal orientation as it returns to the operator position. The maximum speed of longitudinal traverse of the carriage is separately adjustable for both vertical and horizontal cuts.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: April 29, 1986
    Inventors: Richard J. Stubbe, Kenneth C. Stubbe
  • Patent number: 4576076
    Abstract: A production machine for cutting components for furniture, house framing and framing for concrete construction is disclosed. A powered cutting blade can traverse a linear horizontal path above the support surface of a workpiece horizontal table. The blade can be moved upwardly and downwardly vertically relative to the support surface of the table, can be shifted horizontally on a second linear path across the axis of the first-named linear path, can be rotated around a vertical axis, and can be tilted in two directions around a horizontal pivot axis below and parallel to the first-named linear path. The arrangement enables cutting of components in multiple intersecting planes.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: March 18, 1986
    Assignee: Speed Cut, Inc.
    Inventor: Stoddard H. Pyle
  • Patent number: 4574672
    Abstract: A cutting apparatus such as a metal-cutting circular saw apparatus has an axially displaceable shaft for mounting a saw blade. The shaft is hydrostatically supported both in the radial and in the axial direction. To provide for the axial displaceability of the shaft, the shaft is axially hydrostatically supported at one end by means of an annular piston. The piston bears with a radial end portion thereof against a shoulder in the bearing housing, the shoulder projecting into the cylinder in which the piston is displaceable. The piston is of such a cross-sectional shape and elasticity that in an operative position it is elastically pivoted or tilted, thereby reducing the clearance between the piston and the cylinder, so the piston can carry bearing forces in a radial direction, and also eliminating the need for piston sealing means.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: March 11, 1986
    Inventors: Karl H. Ehm, Roderich R. Orendi
  • Patent number: 4549455
    Abstract: An improved saw and saw table combination is provided having a unique movable saw carriage and tracking assembly and a unique table top miter-rip fence assembly, all of which allow cross-cutting, mitering or ripping of both small and large pieces or sheets of wood.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: October 29, 1985
    Inventor: Milton Perilloux, Jr.
  • Patent number: 4545274
    Abstract: Compound angle saw cuts are made with precision on lumber components in the mass production of hip, valley and jack rafters. The required cuts are made by a power-driven circular saw blade which is caused to traverse a linear guideway in one direction with the saw blade in a first angular position to produce a first compound angle cut, followed by reverse traversing of the saw blade along the linear guideway while in a second angular position perpendicular to the first angular position to produce a second compound angle cut. The saw blade, its linear guideway and operating elements are attached to a control arm forming a part of a pantograph linkage which can be driven around a sector gear having a protractor scale to establish the roof slope angle for which rafters are being cut. The sector gear is adjustable on a primary support along a linear path to allow the axis of rotation of the control arm and saw blade to be located in a reference plane defined by the top surface of a lumber component conveyor.
    Type: Grant
    Filed: August 1, 1984
    Date of Patent: October 8, 1985
    Assignee: Speed Cut, Inc.
    Inventor: Henry S. Germond
  • Patent number: 4516453
    Abstract: A control and guidance apparatus for use with a powered saw comprising a pair of parallel elongated rail members telescopically adjustable for defining a cutting path for said saw, a carriage supporting said saw and slidably mounted on the rail members for independent movement therealong and with a saw mount opening in the surface of the carriage, a third elongated rail member substantially parallel to the pair of elongated rail members, guide members mounted to the distal end of each of the parallel elongated rail members for slidably engaging the third elongated rail member, and a cord member connected to the distal end of each of the pair of elongated rail members and provided through a series of pulleys and wound about a spool for imparting arcuate movement to the pair of elongated rail members whereby the pair of elongated members telescopically lengthen as a function of the rotation of the spool.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: May 14, 1985
    Inventor: Walter J. Parham, Jr.
  • Patent number: 4515053
    Abstract: A continuous web feeder for printers and the like includes side frames, drive and support shafts for the feed tractors, and a cutter wheel movable between the side frames and rotatable as it moves therebetween to cut the web. A drive unit includes an electric motor to effect to transverse and rotary motion, and control means actuated by operation of the printer to actuate the motor for movement of the cutter from one side frame to the other and to change the direction of rotation of the motor at each cycle and thereby the direction of movement of the cutter wheel. In its preferred form, the drive means includes winch and cord means engaged with the cutting wheel and its support to effect the transverse and rotary motion, and the control means includes an actuator operated by the motor to effect operation of switches.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: May 7, 1985
    Inventor: R. Clark DuBois
  • Patent number: 4467849
    Abstract: A felling head for use in harvesting trees. The felling head carries a pair of circular saws and means for positioning and gripping a tree to be felled. The saws are rotated and moved relative to the positioning and gripping means to, between them, cut through a positioned and gripped tree.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: August 28, 1984
    Inventor: Jean Denis
  • Patent number: 4464960
    Abstract: Lead cutting machine for cutting the leads of components mounted on printed circuit boards, this machine including a conveyor mechanism for the boards and a rotating cutting knife fixed on a carriage which is slidably mounted in a horizontal plane and under the path of the boards and which is coupled with the piston of a pneumatically controlled pressurized air cylinder.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: August 14, 1984
    Assignee: Soltec B.V.
    Inventors: Harry F. Roepers, Herman B. Van Tilburg
  • Patent number: 4454794
    Abstract: A power saw for rapid and repetitive accurate cutting of truss members on predetermined angles to insure tight fitting truss joints. The power saw is cycled vertically in a reciprocating mode and indexed at the limit of its respective up and downstrokes after being set at precise cutting angles. An adjustable saw indexing cylinder permits a wide range of web angle cuts. Workpiece clamps, mounted on a workpiece guide, coact with a web length stop to insure cutting webs of equal length and initiate the substantially automatic reciprocation and indexing of the saw acting on the workpiece.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: June 19, 1984
    Inventor: Jack L. Thornton
  • Patent number: 4440054
    Abstract: A circular saw having a cantilever beam 12 which is adapted to be lifted and on which a sawing carriage including a saw blade 2 is guided for horizontal movement, comprises a sound protection hood 5 adapted to be lifted together with the cantilever beam 12. At its lower edge the sound protection hood 5 has a flexible crush-proof apron 49 which is made of a sound dampening flexible material and enters into sound-proof engagement with the table top 8 of the circular saw when the cantilever beam 12 with the sound protection hood 5 are lowered into the operating position. Hold down devices 40, 41, 42 mounted on the sound protection hood firmly hold the material 7 to be sawed on the table top 8 during the sawing process by means of strips 55, 72 which are of sound dampening material. The hold down devices are guided in parallel by a parallel guide means including racks and pinions so as to be biased "passively" with respect to the sound protection hood 5 by means of pneumatic cylinders 43.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: April 3, 1984
    Inventor: Friedrich W. Elhaus
  • Patent number: 4414874
    Abstract: A cutter apparatus for cutting of rubberized fabric material having high strength material embedded therein, wherein a carriage is reciprocated on a support frame, which frame may be adjusted angularly to provide a bias angle of cut. A cutter support is mounted on the carriage for movement therewith. Such cutter support journals for rotation a shaft that supports on one end a rotating cutter. The cutter has a plurality of lobes that taper providing a plurality of linear cutting edges. The cutter cooperates with a linear cutting edge on an anvil that also tapers thereby facilitating the shearing of the fabric material. A guide is mounted on the frame over which the fabric material travels and under which a conveyor belt move, which belt transports the fabric material.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: November 15, 1983
    Assignee: The B. F. Goodrich Company
    Inventors: Thomas E. Barnes, Clifford A. Landsness
  • Patent number: 4383458
    Abstract: In the film cutter of this invention, a cutter carriage is guided by a guide rod of a circular cross section allowing it to make both a translational motion along the guide rod and a tilting motion about the guide rod, whereby a rotary blade mounted on the cutter carriage is assured of a close contact with a fixed linear blade irrespective of the thickness of the film to be cut for always attaining a satisfactory cutting action. And a film holder working in synchronism with the cutter carriage allows a roll of film to be cut into specified lengths in a sequential manner.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: May 17, 1983
    Assignee: Dainippon Screen Seizo Kabushiki Kaisha
    Inventors: Makoto Kitai, Akira Ishida
  • 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: 4364291
    Abstract: In a reciprocable circular saw, coplanar mounting of the machine carrier surfaces which constitute the table surface is achieved in that the legs of the frame have horizontal upper portions whose undersides constitute flat horizontal surfaces. The machine carriers are secured to the legs so that the surfaces which constitute a table surface abut against the first surfaces of the legs.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: December 21, 1982
    Inventor: Erwin Jenkner
  • Patent number: 4364311
    Abstract: A method and apparatus for precision cutting a bundle of mill length lumber into a plurality of strapped and trimmed bundles of lumber of desired shorter length(s). The bundle of mill length lumber is placed on an elongated conveyor and moved longitudinally by means of an advancing moveable carriage until the leading edge of the bundle of lumber abuts a surface of a set work carriage positioned downstream of a circular saw which can selectively be advanced across the conveyor path. The ends of the bundle of lumber are then squared by advancing a ram on the moveable carriage. The squared bundle of lumber is banded or strapped by a banding apparatus disposed slightly upstream of the saw and thereafter the leading edge of the bundle of lumber is precision trimmed by advancing the saw across the conveyor path.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: December 21, 1982
    Inventor: James B. Platt, III
  • Patent number: 4353275
    Abstract: Sawing apparatus mountable to the side of a tractor and having a boom which extends outwardly from the tractor. The boom carries a motor driven circular saw which is movable along the length of the boom for making a saw cut in a vertical plane parallel to the boom. The apparatus is arranged for movement of the boom, both vertically as well as horizontally in the front to rear direction of the tractor. The angle of the boom to the horizontal is also variable. The boom may be swung over a range of positions about a generally vertical axis and to a position at which it extends in the front to rear direction of the tractor.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: October 12, 1982
    Inventor: Hume W. Colville
  • Patent number: 4340441
    Abstract: Apparatus for cutting web material transversely to form sections has an arrangement for advancing the material a section at a time across a linear cutting edge. A linear guide parallel with the edge carries a circular blade which overlaps the linear cutting edge said blade being reciprocably driven along a linear guide. Each forward, and each reverse, cutting-stroke of the circular blade cuts off the then advanced section. The advancing arrangement is timed to operate between the ends of the forward strokes and the beginnings of the reverse strokes of the circular blade and vice versa. A preliminary advancing arrangement is provided for advancing a measured amount of web material to form slack which is taken-up by advancement of the material across the linear cutting edge.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: July 20, 1982
    Assignee: DuFaylite Developments Limited
    Inventors: Peter J. Thwaites, John N. Thornton
  • Patent number: 4338838
    Abstract: An apparatus for slitting workpieces has a machine frame which includes a work support, a workpiece stop and a rotary saw which is slidable in the frame. The frame is supported on feet, at least two of which are positioned on a line parallel to the feed path of a workpiece into the apparatus. Another of the feet can be hydraulically withdrawn to allow the machine frame to tilt about an axis defined by engagement of the aforesaid two feet with a bedplate, and thereby to bring the work support and the lower part of the workpiece stop below the workpiece feed path, so that a workpiece may be advanced unobstructed into the apparatus. The apparatus is tilted back to its working position after the workpiece is in its desired position.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: July 13, 1982
    Assignee: Rolf Peddinghaus
    Inventors: Bernd Stursberg, Ludwig Regenbrecht
  • Patent number: 4338051
    Abstract: A machine for cutting a profile into the respective ends of a flat rectangular piece of rubberized material having a clamping table with an overhead reciprocating carriage that has a rotating profile cutter that cuts an interlocking profile at a single pass into such material.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: July 6, 1982
    Assignee: The B. F. Goodrich Company
    Inventors: Richard F. Garver, Srbo M. Stevanovich