Abstract: Method and apparatus for separating a bundle of blank pieces from a stack of sheets. The apparatus has a frame and a subframe which pivots with respect to the frame. The frame and subframe each have a clamp for clamping the stack of sheets along a stack plane and the bundle portion to be separated from the stack along a separation plane that intersects the stack plane. The subframe pivots with respect to the frame, bending the stack to cause the bundle portion to be separated from the remainder of the stack in such a way that separation is initiated at one point along the stack rather than across the whole stack or across an entire sheet of the stack. The subframe pivots about an axis that is skewed with respect to at least one of the planes to produce the described effect.

Abstract: A circular sawing machine comprises a base table, a main support link having one end swingably pivoted to the base table about a first pivotal point, a support arm pivoted to the main support link to be swingable about a second pivotal point formed to the other end of the main support link, a circular saw blade mounted to the support arm to be rotatable through a rotational shaft, and a swing motion limiting link disposed between a third pivotal point formed to the base table and a fourth pivotal point formed to the support arm. The fourth pivotal point is positioned on a line connecting the second pivotal point and the rotational shaft, and a distance between the first pivotal point and the second pivotal point, a distance between the third pivotal point and the fourth pivotal point and a distance between the second pivotal point and the rotational shaft are set substantially equal to each other.

Abstract: A sheet material 2 is cut with a round blade 10 and a notching blade 11. It is assumed that, in a straight section P1-P2-P3-P4, a distance between the end point P1 and the end point P2 is not shorter than a blade width W10 of the round blade 10, a distance between the end point P2 and the end point P3 and a distance between the end point P3 and the end point P4 are shorter than the blade width W10 and it is necessary to cut without cutting into a pattern piece indicated by shadow. A section between the end point P2 and the end point P3 can be cut without cutting into the pattern piece although overcut occurs on the end point P2 side, with the round blade 10 by aligning the leading edge thereof at the end point P3. A section between the end point P3 and the end point P4 is cut with the notching blade 11 because cutting with the round blade 10 causes a cut into the pattern piece at least from one of the end points.

Abstract: An open top shoe having a slotted end cap, an opened end, a bottom wall and opposing side walls contoured to removably support a commercially available industrial electric foliage clipper, is integrally supported to an elongated pole that may be telescopic and includes a slotted end cap at one end to encapsulate the aft end of the clipper and a portion of the handle. A strap attached by a cord to the shoe is adapted to secure the trigger to the clipper's handle and place the clipper in the active condition. An electrical extension cord with a male plug is attached internally at the bottom of the pole and a detachable end cap fits into the end of the pole to close the end and the male plug. A female plug adapted to fit into the male plug of the clipper is secured to the end of the electrical extension cord that snakes through a hole formed on the upper end of the pole. Straps supported to the side walls of the shoe secure the clipper in place and prevent the clipper from dislodging from the bottom wall.

Abstract: A shingle cutter for cutting a substantially straight even edge on a shingle includes a base with a work surface for supporting the shingle during cutting. A blade with a substantially straight cutting edge and a handle is pivotally attached to the base. The pivotal attachment includes a bearing and a lock nut disposed on a threaded rod or pivot arm, which keeps the blade tight against a support member recessed in the base. A guide member having a raised edge is positioned on the work surface of the base for aligning the shingle to be cut. The blade and the support member are formed of an angled piece of material for providing additional strength while cutting through the thickness of the shingle. The base is attached to legs for elevating the base above a supporting surface. A pad, which may be formed of a non-skid material, is attached to the legs for preventing the shingle cutter from sliding down the roof.

Abstract: An improved slice stacking device for a food slicing machine. The machine has a reciprocating carriage to which an elongated food product workpiece is mounted. The workpiece reciprocates through a cutting blade, forming a slice in each cycle. A stacking bed has a textured surface for unidirectional sliding resistance and is mounted to the carriage beneath the blade. Multiple curved fingers are rigidly mounted below an outfeed table and extend downwardly to contact, or be closely spaced from, the upper surface of the stacking bed during a portion of the reciprocation cycle. A slice removed from the workpiece lands on the stacking bed and passes beneath the fingers. During the rearward motion of the stacking bed, the slice is wiped from the stacking bed by the wiper fingers. Another embodiment includes a rake having downwardly extending tines positioned above the stacking bed. The tines extend downwardly into grooves between ridges on the stacking bed.

Abstract: A machine for cutting flat stock, especially sheets of material. The machine has a counter that accommodates the stock and a cutting assembly. The cutting assembly has a knife mounted on a beam that travels up and down toward and away from the counter in a machinery frame. The beam accommodates at least two separate knife-positioning components that force the back of the knife against the beam. Each knife-positioning component rests against a pressure-accommodating component on the back of the knife. At least that area of the pressure-accommodating component that comes into contact with the knife-positioning component is hard.

Abstract: A hold-and-release device for the movable lower guard of a hand-operated circular saw in which the guard is held in its out-of-the-way position by a magnet or latch while a saw cut is being made but is automatically released to assume its normal protective position when the motor power is removed. Alternatives are described having different degrees of complexity, for example, one requires the operator to apply pressure to the trigger switch while engaging the guard-holding device.

Abstract: A blade mounting structure in which a mounted blade is rotated in a well-balanced condition and further the blade can be easily attached to and detached from the apparatus is provided, which structure comprises a mount including a flange and a first cylindrical engagement portion and a first screw portion; a cutting blade including a second engagement portion; and a screw member including a second screw portion, wherein the cutting blade is mounted onto the mount so that the first engagement portion is engaged with the second engagement portion, and the second screw portion is screwed into the first screw portion and wherein the tolerance of the engagement portions, the thickness of the first engagement portion, the gap between the flange and the first engagement portion, and the diameter of the flange are selected to have a particular relationship such that the engagement portions are not engaged under an inappropriate contact condition when the blade is inserted into the mount.

Abstract: Manually and electrically powered die cutting machines for making paper cutouts with replaceable dies. A generally cubicle platen cutting head preferably mounted on a supporting cabinet comprises a rigid, supporting base with a pair of outwardly projecting, parallel side plates that surround a pair of spaced apart platens. A stationary platen is fixed between the sides. A movable platen is laterally suspended between the sides away from the fixed platen, defining a die-receptive compartment therebetween. A die selected to produce the desired shape, and the paper to be cut, are inserted within the die-receptive compartment in sandwiched relation before platen compression. The movable platen is suspended by pins projecting laterally away from its edges that engage suitable follower slots defined in the side plates. A crankshaft assembly pivots an elongated, roller-equipped crankshaft to displace the movable platen for cutting.

Abstract: A saw blade has a plurality of teeth with each tooth formed by a beveled leading face, a beveled trailing face and a chamfered surface located on the trailing face of each tooth. The trailing and leading faces are beveled in opposite directions in alternate order throughout the saw blade prior to the forming of the chamfered surface. The beveled leading face of each tooth intersects the chamfered surface on the trailing face of each tooth to form a curved cutting edge having a negative rake angle. The beveled faces are manufactured by first forming a plurality of rough-formed gullets. The rough-formed gullets are then finished-formed into beveled gullets by a cold-forming operation prior to the grinding of the chamfered surface to form the curved cutting face of the tooth.

Abstract: A cutting cylinder for transversely cutting or perforating a material web running in a rotary press, preferably a printed web in a rotary printing press, has at least one displaceable cutter bar. The cutter bar, pressing a displacing surface provided at the cutting cylinder with a contact surface, is displaceable in the circumferential direction of the cutting cylinder by an adjusting device connected to the cutter bar in a frictionally engaged manner pressing the cutter bar via at least one wedge surface. The wedge surface points toward the displacing surface at an acute angle (.alpha.).

Abstract: Embodiments of an punch machine are shown and described, each comprising a quick-change die assembly. The die assembly may be quickly installed and removed from the punch machine, without bolting or unbolting of either machine housing or the die assembly itself. The die assembly is slid into the machine through a hole in the machine housing and into a position which mates part of the die assembly with the push-bar. A clamp, with a handle outside the machine, is then pivoted against the die assembly. The push-bar is adapted to be self-supporting without being bolted to the die assembly, keeping the push-bar in place without manual adjustment and alignment. The die assembly preferably includes a die, pin retainer, and punch pins, but does not require additional structure to secure the pins to the retainer or to connect the die and retainer.

Abstract: A sawdust removing apparatus for a saw machine includes: a saw blade housing (9) for rotatably supporting a saw blade (15) for sawing work (W); a cleaning instrument (19) for removing sawdust adhering to the saw blade when work is being sawed; a cleaning instrument support member (21) pivotally supported by the saw housing for rotatably supporting the cleaning instrument; a cleaning instrument position adjusting device (23, 71) mounted on the saw housing for adjusting an overlap rate of the cleaning instrument with the saw blade; and a cleaning instrument position fixing device (25) mounted on the saw housing for fixing the cleaning instrument support member after the overlap rate of the cleaning instrument with the saw blade has been adjusted by the cleaning instrument position adjusting device.

Abstract: A belt skiving apparatus is provided having a free-standing blade-carrying carriage mounting a pair of rollers defining a nip into which a belt end to be skived is passed. The rollers press together about the belt end to securely grip the belt, with at least one of the rollers being driven, preferably manually, through a crank arm. Rotation of the rollers advances the carriage relative to the belt to advance the carriage across the width of the belt. As the carriage is advanced, the belt is passed through the rollers and through a cutting blade disposed adjacent the rollers, with the blade slicing a thin strip of the upper portion of the belt adjacent its upper face from the remainder of the belt. The rollers may be driven by a ratchet arm to move the carriage along the belt end. Preferably, two pairs of rollers are employed on the carriage, one forward and one rearward of the blade to cut the uncut portion remaining at the trailing side of the belt after the belt passes through the forward roller pair.

Abstract: A miter attachment capable of use on radial saws, table saws, drill presses, router tables, and the like, comprises three legs of a triangle. The longest leg constitutes an elongated base member. This base member is pivotally attached at one end to a fence member. The base member has a track in it for engagement by a slider, which is capable of movement along at least a portion of the length of the base member. The slider is pivotally attached to one end of a coupler arm, the other end of which is pivotally attached to the fence member at a point spaced from the end pivotally attached to the base member. As the slider is moved to different relative positions along the length of the base member, the coupler arm causes the angle between the fence and the base member to change.

Abstract: Apparatus and method for feeding a web having two portions in a path of travel. The apparatus comprises a first module including a device for feeding the two web portions in side-by-side relationship and a second module located downstream in the path of travel from the first module where the second module includes a device for feeding the two web portions in upper-lower relationship. Accordingly, the two web portions each form a loop between the first module and the second module so as to reorient from side-by-side to upper-lower relationship. The apparatus further comprises a controller operatively connected to the first module feed a device and the second module feed a device for setting the feed speed of the first module feed a device corresponding to the feed speed of the second module feed device. The method includes the steps of: (a) determining the feed speed of the second module; and (b) setting the feed speed of the first module to a corresponding value for a given feed speed of the second module.

Abstract: In the punching of a stack (7) of sheet-like articles, especially labels made from paper or paperboard, with a punching knife (4), a punching ram (3) which can be moved to the punching knife (4) and a counter-pressure plunger (5) which is guided through the punching knife (4), the punching knife (4) and the counter-pressure plunger (5) are arranged on the carriage (10) which can be moved towards and away from the punching ram (3). As a result, a receiving apparatus (26) which can be moved laterally towards and away from the punching area can remove the ready-punched stack (21) and at the same time a new stack (7) of precut sheets can be presented to the punching ram (3).

Abstract: A cutting head for a nylon-cord mower and the like, comprising a case housing an inner spool on which it is wound at least a length of nylon cord, elastically loaded by a helical spring, with the two ends of said nylon cord protruding through pairs of annular members mounted on said case in diametrally opposed locations. The inner spool is formed by a cylindrical body with at least two holes aligned along an axis intersecting the axis of the spool, and that can be axially aligned with the two annular members for allowing the replacement of the nylon cord without opening the cutting head.

Abstract: A tire separation method employs a cutting head and a press for separating treads from rims of solid rubber tires. The cutting head has an annular blade with a blunt edge for tearing the rubber from the rim of the tire. Three spoke blades are spaced apart around the annular blade for cutting the diameter of the tread into sections. The rim drops through the annular blade to a conveyor, while the tread sections fall away to tread conveyors. The tires are brought from storage on a tire conveyor. The press has a hydraulic cylinder driving a piston with a jaw-type clamping mechanism for picking up tires. The cylinder is on a carriage that is movable from over the cutting head to over the tire conveyor for picking up tires to bring them over the cutting head for separating.