Abstract: A circular saw comprises a machine structure, a gearbox, a motor-driven circular saw blade rotationally mounted on the gearbox and a pivot shaft on which the gearbox is pivotably supported. The pivot shaft is firmly connected at one end to the machine structure and is mounted at the other end in two brackets which form an angle between them. Each of these brackets is adjustable by means of an eccentric bearing rotatably mounted on the machine structure in such a way as to allow adjustment of the pivot shaft and with it the circular saw blade in the direction of two coordinates.

Abstract: A printing mechanism is provided with a rotary cutter mounted on a printing trolley to enable a recording medium or document to be cut as the printing trolley moves during a printing operation. The recording medium is supported by a platen which has a counteracting edge cooperating with the rotary cutter and a control mechanism operates to actuate the rotary cutter between an active position for cutting and a lifted inactive position with a spring operating to apply a spring force against the rotary cutter tending to urge it against the counteracting edge.

Abstract: In a supply magazine of a copying machine closed copy paper packages are arranged in stacked relation. The copy paper has been preconditioned by the manufacturer and provided with a packing that protects the preconditioning.Whenever the copy paper supply for the copying machine has to be refilled, one copy paper package is removed from the supply magazine and advanced to an unpacking device and opened.The unpacked copy paper stack is withdrawn from the opened packing by a withdrawing device and moved to a magazine.The magazine is associated with a sheet separating device which removes individual sheets and advances them to the copying station.

Abstract: This invention is directed to the removal and also to the replacement of a beam end connection assembly in a walking beam. A walking beam comprises a beam hanger axle bracket and also an equalizer beam. The beam end connection assembly comprises an inner tube and a rubber bushing. The inner tube is positioned in the beam hanger axle bracket and also in the equalizer beam. The rubber bushing is between the inner tube and the equalizer beam. The rubber bushing and the inner tube are severed, preferably, simultaneously. Then, the remnants of the inner tube and the rubber bushing can be removed from the beam hanger axle bracket and the equalizer beam. Then, it is possible to install a new beam hanger connection assembly in the beam hanger axle bracket and the equalizer beam.

Abstract: A safety device for a rocking arm saw includes a blade guard assembly which may be selectively mounted on a handle which rocks the saw blade for crosscutting operations or on a workpiece supporting surface for ripping operations. The blade guard assembly includes a guard housing substantially covering the portion of the blade which extends above the workpiece support surface and is pivotally mounted to the handle for displacing the blade by means of a first mounting arm. The blade guard is mounted on the workpiece support surface by a mounting arm having the opposite ends thereof respectively pivotally connected to the blade guard and a planar, upright support mounted on the supporting surface. The upright support is coplanar with the blade and possess a thickness no greater than that of the blade so as to pass through a cut produced by the blade when a workpiece is moved across the support surface and through the blade.

Abstract: A hydraulically powered mobile radial arm timber saw and control assembly in which positive control of saw movement is maintained from the fully retracted saw position to the fully extended saw position by a novel hydraulic control assembly.

Abstract: Apparatus for controlling the operating relationship of a rotatably driven circular saw blade to an adjacent workpiece includes a base carrying an elongated slide plate having a longitudinal slot adjacent one end. An indexing assembly is disposed between the base and the elongated slide plate and engages within the slot of the slide plate to constrain one of its ends to longitudinal movement, and a crank rotatably connects the base to the medial portion of the slide plate. A first motor is mounted on the other end of the slide plate to rotatably support the blade, and a second motor may be carried by the base for rotating the crank to move the slide plate from side to side and up and down along the slot and thereby move the saw blade along an elliptical path. In operation, the second motor turns the crank to cause the blade to be brought into contact with the workpiece along a path generally parallel with a major axis of the elliptical path.

Abstract: A ring-blade saw for cutting a tube generally centered on a tube axis has a subtantially stationary base, an outer frame displaceable in a straight line in a plane, and an actuator connected between the base and the outer frame for displacing the frame relative to the base in the plane. An inner support is carried by a first guide on the frame for movement relative to the frame in a first straight direction lying in the plane and by a second guide for movement of the support relative to the frame in a second straight direction lying in the plane and perpendicular to the first direction. A generally planar, annular and internally toothed saw blade lying generally on the plane, centered on a saw axis generally perpendicular to the plane, and carried on the support can be rotated on the support about this saw axis. Thus the tube to be cut can extend through the blade with its axis parallel to or on the blade axis.

Abstract: An automatically controlled cutting machine for cutting sheet material employs a cutting wheel and a hard, smooth and continuous surface of ferromagnetic material on which the sheet material is spread for cutting. To prevent shifting during cutting, the material is releasably attached to the support surface by adhesives, freezing, electrostatics and other securing means. The cutting wheel is forced downwardly against the hard support surface by an electromagnet mounted on the cutting wheel support to insure severing of the sheet material.

Abstract: An apparatus for trimming the wire leads of electronic components mounted on printed circuit boards is provided, which comprises a base plate, an adjustable holding fixture for a printed circuit board fixedly disposed on the base plate, a pivotable cantilevered bracket assembly mounted on the base plate adjacent the holding fixture, a motor-driven rotary cutting blade disposed on the end of the cantilevered pivotally movable bracket assembly for movement along the surface of a printed circuit board disposed within the holding fixture, and an anti-warp device including one or more pivotable lever arms disposed above and below the printed circuit board, and an adjustable pin mounted on each of the upper lever arm to engage the top surface of said printed circuit board and urge the same into a flattened position and an adjustable pin disposed in each of the lower lever arms to engage the bottom surface of said printed circuit board to urge the same in a flattened position.

Abstract: In a machine for covering a toroidal body with layers of elastomeric material wherein a cutting and stitching apparatus is provided for severing a scrap portion of a sheet of material (32) from a portion of the sheet that has been applied to a toroidal core (30) and stitching the applied portion to the core (30). The apparatus (16,18,20,22) includes actuators (45,54) for positioning the cutters (104) and the stitchers (105) in operative position on the outside periphery and the inside periphery of the core (30) with the rotatable cutters (104) in proper position for effecting a cut through the material without scoring the core (30) or other underlying material. The cutting and stitching apparatus (16,18,20,22) is rotated about the core (30) as the rotating cutter (104) severs the material. The cutter (104) is programmed to retract as the stitchers (105) continue to stitch the edge of the applied material to the core (30).

Abstract: A rocking arm saw is disclosed which may be used in one mode with an operating handle as a pull-through power saw for accurate cross or angle cutting while being readily convertable by removal of the handle to a table saw for ripping or groove cutting. The saw in its free standing form comprises a cutting surface platform and work table top, a subjacent box-like machinery housing, and a base support ventilating structure sized to provide a carrying box for the housing. When used as a pull-through saw, the rocking arm is urged elastically through its forward cutting stroke and biased rearwardly to a blade retracted position. The table top is thus maintained free of blade obstruction since the blade is protectively shielded beneath the cutting surface upon the user releasing the operating handle.

Abstract: Two chain-type endless belts are positioned to transversely span a continuously moving strip-like web, one belt facing each of the two major web surfaces, the belts oriented at an acute angle to the longitudinal web axis. Disk-type freely rotatable cutters are mounted on the endless belts for movement across the web with the blade cutting axes aligned perpendicular to the longitudinal web axis, and the endless belts are synchronized to provide cooperation between an individual blade on one belt and a corresponding blade on the other belt to engage and shear the web in a "scissoring" action. Another endless belt engages the last cut longitudinal web edge to provide biasing against unbalanced forces parallel to the major web surfaces produced by the blades.

Abstract: A cutting tool arrangement for performing the process of opening up the slit cut in the workpiece by circular saws before the saw is retracted to facilitate removal of the saw. The workpiece being severed is moved perpendicular to the cutting plane as is the saw blade to accomplish the desired result.

Abstract: Cutting apparatus having spaced apart cutters which can be brought closer together are disposed on one end of a boom which is movable in a plane transverse to the longitudinal axis of a closely packed tube bundle to cut out short segments from the tubes starting at the periphery and working through the tube bundle by bringing the cutters closer together to provide clearance as the cutters move deeper into the tube bundle.

Abstract: A portable bench frame suitable for precision woodworking particularly in relatively large workpieces is shown. The bench frame comprises a substantially large rectangular frame supported by two pairs of foldable legs. A traverse beam is suspended above the middle longitudinal portion of the bench top. The beam is mounted to two spaced telescopic columns located at the corners of the rear edge of the bench top. The telescopic columns are adjustable to raise or lower the traverse beam with respect to the bench top. A rotatable work table top is removably mounted on the bench top and a plurality of basic woodworking tools such as a rotary saw, a lathe, a drill press may be mounted on the frame so that these tools are conveniently available for performing various woodworking operations without having to remove or re-mount tools. The tools can be arranged such that each tool does not interfere with the working of the other tools mounted on te bench frame.

Abstract: A miter attachment for use with a portable electric circular saw. This miter attachment has a smooth upper platform secured to rails positioned at 90.degree., and at 45.degree. right and left which are also secured to the base. A portable saw is placed on the upper platform with the circular blade in the marked pre-cut saw groove for true miter cutting. The saw shoe is fixed in position by clamps and the user releases the elevation knob on the saw, allowing it to move freely up and down on a pin hinged to the saw shoe. A plunge cut is achieved as the saw is lowered and the blade passes through the workpiece, placed and held against the rail between the upper platform and the base.

Abstract: A cutting machine to form a tenon at each end of a piece of timber, which tenon has opposite faces which are inclined both longitudinally and transversely relative to the piece of timber and form hereinafter called skew tenon faces. This tenon cutting machine is of simple and inexpensive construction and uses a pair of circular saws which are simply arranged angularly relative to each other and to the piece of timber to produce both skew tenon faces at each end of the piece of timber by simple bodily displacement of the circular saws transversely of the piece of timber. This machine includes a carriage displaceable in a predetermined direction and carrying the two circular saws, a timber carrying bench to place the piece of timber lengthwise orthogonally to this direction and laterally slanted either way in this direction. The displacement of the carriage causes the saws to cut the two surfaces respectively which are required on either side of the tenon.

Abstract: A portable tool and method for connecting a cross piece to a series of parallel boards in a wooden frame assembly, by connecting a guide member temporarily to outer coplanar faces of the boards, directing the tool along the guide member and across those board faces to cut aligned similar notches therein, and then removing the guide member and connecting it or another member into the notches as a cross piece interconnecting the boards. To perform the notching action effectively, the tool has a first guide surface which engages and moves across the outer faces of the boards, with a cutter projecting inwardly beyond the plane of those faces to cut the desired notches, and with two additional guide surfaces engaging a lateral edge and outer face respectively of the guide member to positively locate and position the tool as it moves across the boards and forms the notches.