Abstract: A cutting disk mounting assembly includes opposing end plates with a stub shaft attached to an exterior surface of one end plate. The plates have a first axial bore formed in the interior surface of the one plate and a protruding axial hub formed on the interior surface of the other plate. The hub is sized to fit in the first bore so as to align the plates in a clamping relation with their interior surfaces located adjacent to one another. A second axial bore is formed through the other plate and the axial hub thereon and a third axial bore is formed through the one plate so as to open into the first bore therein. The third bore aligns with the second bore when the hub is fitted in the first bore. Also, the third bore contains threads which threadably interengage with a threaded fastening screw when the latter is applied through the second bore to attach the aligned plates together in the clamping relation with respect to a cutting disk when the latter is disposed therebetween.

Abstract: An embodiment of a quick change mechanism permits, without using hand tools, the very quick changing, in second, of circular saw blades and other spinning disc devices, which have diamond shaped arbor holes, in respect to the drive shafts of portable powered circular blade saws, and radial saws. No modification of most existing saws is required. At the location of the existing saw drive shaft, with its central threaded hole, the drive shaft bearing, and the saw body; this quick change mechanism is secured, using an installation bolt passing through it and into the central threaded hole of the existing saw drive shaft.

Abstract: A device for longitudinally cutting web material, especially paper and cardboard webs with at least one rotating circular knife pair consisting of a freely rotating point knife that enters the material during the cutting process and a pot knife that rests on a power-rotated hub element. To reliably preserve, with simple means, an initial basic or zero adjustment subsequent to regrinding or replacement of the pot knife, the cutting surface of the pot knife rests axially against a contact surface that is stationary in relation to the hub element.

Abstract: In one embodiment of this quick change mechanism, a narrow six spline hub is installed in the arbor hole of a circular saw blade or other disc tool heads such as grinders, sanders and buffers. This hub slides onto a matching splined drive shaft in which a narrow section of spline lands has been removed circumferentially to fit the width of the splined hub that is secured to the circular saw blade. A fifteen degree rotation of this splined blade hub on this shaft aligns all the lands and grooves, thus locking the hub relative the longitudinal axis of the drive shaft. To continue the locking, by locking the hub in rotation relative to the shaft, a splined sliding collar with spline land extensions, serving as locking fingers, is interposed into the spline grooves of the drive shaft and also the hub grooves. A blind longitudinal hole in the drive shaft contains a compression spring and an unthreaded bolt.

Abstract: A camming member is disposed on a threaded arbor and is provided with a first face having at least one inclined surface. A first face of a reinforcing plate is disposed in abutting relationship to the first face of the camming member and is provided with at least one inclined surface corresponding to the at least one inclined surface of the camming member. A second face of the reinforcing plate abuts a first face of an abrasive disc or wheel. At least one of the second face of the reinforcing plate and the first face of the disc may be constructed to provide a yieldably clutching relationship with the other one of such faces. An internally threaded nut is disposed in a central bore in the disc in abutting relationship to the walls of the bore and to the second face of the disc and is attached to these surfaces as by an adhesive material. The adhesive material may be elastomeric. Abrasive particles are dispersed throughout the disc.

Abstract: A log splitting machine having a disk-like blade rotatable about an axis and able to split a log in a single 360.degree. rotation about said axis. The blade has two parts, each of which performs a different function. The first part of the blade has a spiral-shaped cutting edge designed to sufficiently penetrate into an end of a log to be split so as to form a lengthwise crack in the log. The second part of the blade has a widening edge designed to separate the log into two pieces along the lengthwise crack with further rotation of the blade. The log splitting machine also includes: an adjustable backstop for accommodating logs of different length; a frame for supporting the blade, log and adjustable backstop; an electric motor for powering the blade through a 360.degree. rotation; and a hood covering the blade and motor, and a deadman control switch for increased operator safety.

Abstract: Circular cutter shears are provided with an upper circular cutter shaft inclined towards the surface of the plate and a horizontally mounted lower circular cutter shaft. In order to prevent narrowing of the cutter clearance and jamming in the cutting engagement, the inclined upper circular cutter shaft is swung, with its end remote from the cutter, by an offset angle .beta. opposite the direction of feed of the plate.

Abstract: A self-contained mount, for a spindle-driven rotary abrasive tool or the like, able to compensate for slight non-concentricity of the threading on the end of a drive spindle for the rotary tool. The mount includes an internally threaded cylindrical sleeve with an outside diameter small enough to be inserted into a longitudinal axial bore in such tool, and a retaining ring to maintain the sleeve fixed longitudinally therein while permitting it to adjust its position relative to the rotational axis, if necessary, upon being screwed onto a threaded end portion of the spindle, while supporting the tool coaxially therewith.

Abstract: A device for attaching a tool in portable angled grinders, allowing the connection to be released without special accessories. The device consists essentially of a hollow driveshaft, of a spindle that slides inside it, and of a tool-securing point consisting of a mating flange and nut. The nut is loosened by activating the displacing mechanism, which displaces the spindle toward the tool-securing point, lifting the nut, which is connected to the spindle by means of a threaded pin, off of the tool. The nut can then be screwed off by hand.

Abstract: The invention is the precise mounting of a cutting tool on a rotating spindle to prevent eccentric runout between the spindle and tool and comprises mating non-locking taper surfaces at the inner end of the spindle tool combination and diverging angular taper surfaces at the outer end of the spindle and tool combination. A variable diameter wedge engages the diverging taper surfaces for precise and repeatable accurate mounting of the tool to the spindle.

Abstract: A circular saw blade, having been divided into two sections to permit rapid replacement without having to be removed past the end of the saw arbor, is reconnected and self-interlocked to its own body, thus eliminating any requirement for machined collars or studs for retention or alignment. Interlocking is accomplished by the use of interlocking projections and corresponding recesses in various configurations on the two sections of the split saw blade.

Abstract: A system for precision centering a bored rotary member upon a mounting shaft, which relatively loosely extends through the bore, includes a radially outwardly extending shoulder on the shaft against which one end of the bored member is seated. A generally triangular shaped, plate-like insert, having a central opening, is positioned over the other end of the bore. The corner portions of the insert are immovably fastened to the member and the shaft passes through the central opening. The periphery of the opening is defined by a series of spaced apart, equal radius, arcuate segments which form substantially line contacts with the shaft periphery. The radii of the segments are centered on the bore axis and are slightly shorter in length than the shaft radius, which is shorter than the bore radius. Thus, the arcuate segments resiliently compress radially inwardly around the shaft to center the bore upon the shaft.

Abstract: The device for mounting and removal of polishing wheels comprises a cup-shaped support of partially elastic material and fitted on the mounting face of a polishing wheel. A receiving plate is forcibly engaged within the support by elastic deformation of the cup and rigidly fixed to the end of a driving shaft. A duct formed in the bottom wall of the cup serves to discharge air at the time of assembly or to blow-in compressed air between the cup and the receiving plate for subsequent uncoupling of these two components and removal of the corresponding polishing wheel.

Abstract: An adjustable tool mount positions a rotatable tool on a machine tool spindle by a central tool mount ring having a internal thread machined throughout. The thread engages a pin extending from the tool spindle, so that rotation of the assembly causes axial advancement of the tool mount. The tool mount is clamped and unclamped by a lock nut received on the tool mount which compresses a plurality of nested conical spring rings which are closely fitted to a counterbore within the tool mount and to the machine spindle. Compression of the spring rings tends to enlarge the ring outer diameter and tends to reduce the ring bore, thereby causing a secure frictional grip to be effected between the tool mount and machine spindle.

Abstract: An electromotively driven household slicing machine for food, includes a main housing, a cutting tool for cutting food, an integral electromotive drive module for driving the cutting tool, the drive module having its own housing and being lockable to and easily detachable from the main housing, and a device disposed on the main housing for centering and connecting the cutting tool to the drive module in an operating position.

Abstract: A circular saw retaining arrangement where a circular saw blade is retained on a driven arbor shaft including an arbor plate located a selected distance from the end of the arbor and where the shaft of the arbor between the arbor plate and the end of the arbor shaft is threaded to receive an arbor nut, an improved means of securing the saw blade to the arbor including a collar of selected peripheral configuration to receive wrench means wherein the collar has a central aperture to receive the arbor shaft wherein one surface of the collar is roughened and adapted to be urged against the saw blade with the arbor nut threaded on the arbor shaft and tightened against the side of the collar opposite the side bearing the roughened surface.

Abstract: Apparatus for smoothing, cutting, grinding and polishing with a disc, comprise a disc drive having a head including a disc retainer member insertable for formfitting interlock into an oblong central hole of the disc. The head is undercut by grooves cooperating with the disc and delimiting means forming a bayonet-type interlock for rotation in a first sense as well as for rotation in an opposite second sense.

Abstract: An adapter or machine tool holder for cutters and the like and having a centrally disposed flanged piece with a support means extending axially therefrom in one direction and a hub member axially projecting from the flanged piece in the other direction, abutment member or members extending from the surface of the flanged piece adjacent the hub for engaging a load element such as a cutter and the like for retaining the load element in engagement and preventing the load element from rotating on the holder independently thereof.

Abstract: A horizontal disc-like tool head is detachably mounted on an upper coupling portion of an elongated hub, while a lower coupling portion of the hub is adapted to be coupled to and rotated by the tool drive shaft of a food processor. The tool head has a socket underneath it adapted to receive the upper coupling portion of the hub, which is inserted into this socket by motion in a horizontal, i.e. radial, direction parallel to the plane of the tool head, being held in the socket by a pair of detents. The elongated hollow hub includes a spring-loaded push rod or bolt lock in its bore which can be elevated into locking position between the detents and inserted into the socket to prevent the release of the socket from the hub during operation. This push rod includes a manual release button for withdrawing the push rod from the socket, thereby returning the detents to their original unlocked condition.

Abstract: A horizontal disc-like tool head is detachably mounted on an upper coupling portion of an elongated hub, while a lower coupling portion of the hub is adapted to be coupled to and rotated by the tool drive shaft of a food processor. The tool head has a receptacle underneath it for receiving the upper coupling portion of the hub, which has a flange-like configuration with spaced, projecting, peripheral teeth. The receptacle has a plurality of spaced, lip retainers which are adapted to receive and retain such teeth when the hub is inserted in an axial direction and then rotated about the tool axis for changing its angular orientation in the receptacle. The teeth and lip retainers have corresponding matching sizes, so that the hub properly fits into the receptacle in only one position, thus preventing incorrect insertion of the hub.

Abstract: A holder for supporting a rotary cutting blade such as a saw blade for an electric circular saw comprises a drive shaft rotatable on its own axis and having a larger-diameter portion and a smaller-diameter portion concentric therewith, a fixed flange fitted over the larger-diameter portion and having an annular support extending around and spaced radially from the smaller-diameter portion for mounting thereon the rotary cutting blade, and a removable flange having an annular projection inserted between the annular support and the smaller-diameter portion and secured by a screw axially to the smaller-diameter portion with the rotary cutting blade sandwiched between the fixed and removable flanges. The annular support and the smaller-diameter portion have distal ends lying axially flush with each other.

Abstract: A toolholder for supporting thin rotary tools is disclosed, utilizing first and second tool rings having flange portions for respectively clamping and driving the sides of a rotary tool such as a thin grinding wheel, wherein the respective tool rings have generally circular tool support sections adjacent to their flange portions, and the circular tool support sections are relieved so as to form facial teeth or lugs on the two rings, and the respective teeth of the one ring engage the tooth spaces of the other ring and vice versa, when the rings are clamped against a thin tool.

Abstract: A cutter ring for use in trimming printed circuit board leads and a method of forming the ring is the subject of this invention. The cutter member is of annular configuration and is provided with a central hub portion surrounding an aperture. The cutter member itself is formed from a hardened sintered carbide which can only be shaped through a prolonged grinding operation. A molded cap is formed over the hub portion to present a surface which is to be received within a tool holder such as an arbor. The molded cap is characterized by being formed from a relatively soft workable material which can be shaped through a machining operation.

Abstract: An arrangement for frictionally coupling a saw blade to a trunnion projecting from one end of a drive shaft and permitting rotation of the saw blade relative to the trunnion upon excessive strain on the saw blade, in which the saw blade can be mounted only in a correct way in accordance with the direction of rotation of the drive shaft on the trunnion. The saw blade is frictionally held between two annular clamping elements on the trunnion. One of the annular clamping elements abuts against a shoulder formed at the junction of the drive shaft and trunnion and the other abuts directly or under the imposition of a pressure ring against the head of a screw screwed into an axial bore extending from the end face of the trunnion into the latter. The saw blade has an axial projection and the annular clamping element on the side of this projection is constructed in such a manner that the saw blade, without being hindered by the projection, may abut against this clamping element and turn relative thereto.

Abstract: An improved hub assembly is utilized to rotatably mount a grinding wheel. The hub assembly includes a hub which engages a first major side surface of the grinding wheel. A circular clamp member is mounted on the hub by a plurality of fasteners. An annular flange ring circumscribes the clamp member and engages a second major side surface of the grinding wheel. The clamp member has radially extending arms which engage the flange ring and press it against the grinding wheel. A cover is mounted on the flange ring and extends over the fasteners. When the grinding wheel is to be removed from the hub assembly, the fasteners are loosened by inserting a suitable tool though openings in the cover. Loosening the fasteners enables the annular flange ring to be rotated relative to the clamp member until the radially extending arms on the clamp member are aligned with radially extending recesses formed inside the flange ring.

Abstract: A rotary disc cutter blade assembly comprises a cutter blade and the rotatable support on which the blade is mounted and which supports the blade within a radial support area. The rotatable supporting includes a resiliently deformable disc which airially supports the blade with initial tension outside the support area to effect noise reduction during use of the blade.

Abstract: Adjustable hub mount for circular saw blade which enables the substantial elimination of blade wobble due to non-uniform flatness of the saw blade.

Abstract: An adjustable slicing blade assembly comprises basically a slicing or spacer disk having a centrally disposed circular opening, a cylindrical flange extending from the under side of the spacer disk and surrounding the circular opening, and a rotatable shaft axially movable within the cylindrical flange and through the circular opening and having a slicing blade extending radially from its upper end. Appropriate mechanism is provided to locate the spacer disk and the shaft in a given position with respect to each other. Associated with the shaft and cooperating with such locating mechanism is an arrangement for maintaining such given position and also varying the same and thereby the separation between the slicing blade and the spacer disk.

Abstract: A fingerling shear for shearing a length of wood in a plane transverse to the grain direction and for splitting the sheared length along the grain direction to form a plurality of fingerlings. The shear includes a planar shearing blade, supported for rotation about a generally vertical axis, the planar shearing blade including an involute cutting edge adapted to engage the elongated piece of wood during rotation of the blade and for shearing off a length of that piece of wood, and a plurality of splitting blades fixed to the lower surface of the planar shearing blade and spaced along the involute cutting edge, the splitting blades each including a leading cutting edge spaced from the involute cutting edge of the planar blade and extending tranversely to the lower surface, the cutting edges of the splitting blades being adapted to sequentially engage portions of the sheared length of the wood stock to sequentially split fingerlings from the sheared length.

Abstract: In a circular power saw blade mounting arrangement of the kickback clutch type, the blade clamping washer, spring washer and blade screw are retained as a permanent subassembly to eliminate the possibility of substituting an incorrect part. Markings on the exposed face of the clamping washer and the spring washer provide visual indication as to whether the spring washer is properly tensioned.

Abstract: A lead wire cutter which comprises an automatic conveyor mechanism for print circuit boards which conveys said print circuit boards one by one from one end to the other and a cutter mechanism placed in the path of conveying said print circuit boards and provided with a rotatable blade which faces lead wires of parts soldered to and extending beyond said print circuit boards. This lead wire cutter is used for quickly and automatically removing lead wires in the portion extending beyond the opposite side of print circuit boards.

Abstract: A brake apparatus is disclosed for a motor driven saw blade, and includes a hub threadably attached at one end along its centerline axis to a drive motor, and attached to a saw blade via a flange formed on the other end of said hub, said hub having the shape of a cylinder. Also included are two brake shoes, one situated on each side of the hub, with each shoe including a brake pad portion thereon, such that when said brake shoes are actuated by brake actuation means operatively connected to said brake shoes, said shoes are caused to squeeze together to thereby brake rotative movement of said hub and therewith said saw blade. Means are also provided for adjusting the extent of brake shoe displacement during actuation as needed due to brake pad wear.

Abstract: A rotary saw having an arbor with a threaded end portion and means to rotate the arbor. A circular saw blade on the arbor, a solid collar on the arbor rearwardly of said saw blade and a removable collar on the arbor forwardly of said saw blade. The periphery of the solid collar having an annular groove and an annular insert in the annular groove. Annular contact rims on the annular insert and on the removable collar to contact opposite faces of the saw blade when a retaining nut is tightened on the threaded end portion of the arbor.

Abstract: A slicing machine has a housing on which a blade is rotatable about a horizontal axis. The blade is covered by a cover plate which must be in position in order to allow depression of the push-button which starts the device. In addition, the blade is held to its hub by means of a connecting element that connects screw-fashion to the hub over the blade and which can be removed or tightened by hand. A support plate adjacent the blade can be swung between a down position in which a foodstuff can be slid along it during slicing and an up position out of the way paralllel to the blade. A foot on this support plate can be moved between a projecting position in which it can function as a foot and a flat position recessed in the support plate.

Abstract: A cutting apparatus for making circular or circular arc-like cuts in a sheet of material such as paper, cloth, leather, plastic, rubber and the like. A substantially planar base is provided to receivably support said sheet and a hinged apertured clamping plate is lowered over the supported sheet to secure it against movement during the cutting operation which takes place through the aperture. An arcuate arm is secured to the base and an elongated portion of the arm positions an internally-threaded vertically-oriented boss above the aperture. An externally-threaded member is operably received within the boss and includes an adjustment disc for turning said member to raise or lower same within said boss. A blade-positioning shaft is received within a vertically-oriented central bore in the member and includes a shoulder to secure the shaft for vertical movement with the member. The lower distal end of the shaft includes a threaded pin for being slideably received within a radius selecting slot of the blade.