Abstract: A shearing machine is disclosed which includes a first lower blade and a second lower blade positioned at right angles with respect to each other. A ram is provided which is swingably movable upwardly and downwardly with respect to the lower blades, the ram including a first upper blade and a second upper blade positioned at right angles with respect to each other. A drive drives the ram upward and downward with respect to the lower blades and connecting rods couple the drive to the ram. An adjusting mechanism is coupled to the ram and the connecting rods for adjusting the lower limit of the stroke of the ram. Furthermore, the machine includes adjustors for adjusting the horizontal clearance between the upper and lower blades when the ram is in its lowered position.

Abstract: A machine for punching or pressing sheet material comprises a support base, a stationary machine member and a machine member which is rectilinearly displaceable relative thereto for the working movement. At least one such member is fitted with a tool and in order to produce the working movement, a wedge is displaceable transversely to the direction of the said movement in a reciprocatory manner by means of a drive provided between the base support, or a member connected thereto, and the displaceable machine member, or a member connected thereto. The load transmitting surfaces on the wedge and the load transmitting surfaces facing the same on the adjacent support base and displaceable member are formed by hardened body-surfaces.

Abstract: A preloaded spring assembly is disclosed having a compression coil spring received interior of a housing. The housing is made of opposed cup-shaped housing members having open ends with one of the cup-shaped members having a smaller diameter and having its open end projecting into the open end of the second housing member. The respective open ends are configured to provide a lock abutment preventing separation of the housing members beyond a certain dimension whereby the spring positioned interior of the housing members having its opposite ends in contact with the bottoms of the respective cup-shaped housing members is provided with a compressive preload. Also, disclosed is a method of manufacturing the preloaded spring assembly which configures the open ends to provide a mechanical interlock during assembly such that the spring is preloaded at the time of assembly.

Abstract: There is provided a method and apparatus for felling a tree. A tree is cut through with a circular saw, and then substantially immediately after the cutting, the tree is clasped by a grapple means. The apparatus for cutting the tree may include an offset exposed arc of the circular saw, and by mounting the apparatus on a swingable boom, it is possible to cut the tree in a scything or scythe-swinging action.

Abstract: A punch assembly for punching a workpiece comprising a unitary stripper spring assembly that can be adjustably fastened to a punch. The unitary stripper spring assembly includes a threaded head which engages a threaded end of the punch so the effective length of the punch can be varied after sharpening by simply turning the unitary stripper spring assembly relative to the punch. The punch is fastened to the unitary stripper spring assembly only at the head. The unitary stripper spring assembly further includes a washer, and a telescopic retainer enclosed in a stripper spring between the head and the washer. The telescopic retainer responds to the force exerted on the punch assembly by the ram of a punching device by contracting during the punching stroke. After the punching stroke the stripper spring expands to strip the punch from the workpiece and the stripper spring assembly returns to its normal position.

Abstract: A cutter assembly for cutting strip material into individual lengths particularly for cutting labels which include cloth material having polyester fibers which must be cut while operating with a heated blade comprises a fixed support with a fixed blade having a first side secured to the support and an opposite second side and having a top cutting edge over which the strip material to be cut is fed. A movable member is movable upwardly and downwardly relative to the fixed blade and carries vertically spaced apart pintles to laterally spaced locations which provide guideways at opposite sides of a movable blade assembly. The movable blade assembly includes a block portion having a guide pintle which extends between respective two pintles on each side thereof so as to prevent vertical movement of the block but permit its lateral displacement toward and away from the associated movable member.

Abstract: A shear frame mounting and positioning mechanism for linearly reciprocal shear blades in which the shear frame can be adjusted in a horizontal plane in a direction parallel to and perpendicular to the direction of travel of the shear blades. Additionally, the shear frame is tiltable in a vertical plane which is parallel to the direction of movement of the shear blades. A mechanism is provided for locking the shear frame under the feeder spout, the mechanism including means for adjusting the shear frame in a direction perpendicular to the direction of movement of the shear blades. The shear frame can be swung between a position under the feeder spout to a position out from underneath the feeder spout and also raised and lowered in a vertical direction.

Abstract: A turret type punch press machine, adjustable means for aligning tool elements of spaced rotors comprising, a supporting member for at least one of the rotors, the supporting member being pivottably connected to a main frame of the machine, adjustable positioning and locking means for providing limited vernier adjustment of said supporting member about its pivot point on the machine, an indexing mechanism mounted on the supporting member providing for multi-position indexing of the rotor about its axis, and wherein the indexing mechanism is adjustable to provide limited angular positioning of the rotor for each indexed position thereof and to provide, in conjunction with the adjustable positioning of the supporting member two limited and substantial orthogonal directions of adjustment of the position of a tool mounted in the rotor on the supporting member.

Abstract: A punch press having a punch holder and a die holder rotatably mounted on vertically spaced upper and lower plates, respectively. A punch and the corresponding die are held in the punch and die holders, respectively, for rotation therewith. The punch is cooperable with the die to machine the workpiece positioned therebetween when a predetermined angular attitude of the punch relative to the die is maintained. A detector is provided for checking whether the predetermined relation in angular attitude between the punch and the die is maintained when they are in their home positions and when they are angularly displaced from their home positions. Preferably, the upper and lower plates are arranged into upper and lower turrets rotatably holding a plurality of circumferentially spaced punch and die holders, respectively.

Abstract: Apparatus is provided for removing coils of scrap wire or cable (103) from about a reel (100) comprised of an array of juxtaposed cutting blades (50-53) and apparatus (60-63, 54-57) for reciprocally driving each of the blades independently along a different path in a group of mutually juxtaposed paths. Apparatus (16) is also provided for supporting the reel with the reel flanges straddling a portion of the group of paths.

Abstract: This invention teaches apparatus having track-like guide means adapted to be secured onto the face of a conveyor belt crosswise of the belt in the general area of a mechanical joint to be made in the belt. A carriage rides along the guide means, and supports first and second cutters used to cut a groove in the belt and to end cut the belt. Power means such as a winch is used to move the carriage along the guide means. The practiced method includes taking sequential passes of the cutter carriage to make these cuts, and taking like steps at the opposite ends of the belt span. The mechanical fastener can be received then in the matched recesses and secured to the underlying portions of the belt ends to join them together while having the fastener generally flush with the rubber overlay. The apparatus is entirely portable and particularly adapted for in-the-field repair and/or modification of existing conveyor belts.

Abstract: A straight line shearing mechanism which includes at least one set of oppositely disposed shear blades movable in a straight line toward and away from each other. Mounting means are provided for at least one of the blades which has relative vertical movement with respect to the other of the blades. A mechanism is provided for moving and mounting means vertically with respect to the other blade. The mechanism is operable to move the mounting means during all positions of the shear blades. In addition, the vertically movable shear blade is capable of tilting in the event of excess tension between the blades.

Abstract: A guillotine assembly (20) having opposed cutting blades (65,85), the orientation of which can be adjustably preselected to provide both vertical and horizontal relative inclination in order to provide initial and progressive interference between the blades (65,85) as they effect a progressive cut therebetween. At least one blade (65) is mounted to allow a progressive movement with respect to the mechanism on which it is supported in order to accommodate the preselected degree of progressive interference between the blades.

Abstract: A straight line shearing mechanism which includes a unique pneumatic control system to cause the operation of the shears. One feature involves the cushioning of the piston member of the pneumatic cylinder assembly on the return stroke. Another feature is the provision of an automatic retract to open the shears in the event that the shear blades do not complete their cutting stroke. Also, one blade of a set of shear blades may tilt in the event of excess tension between the blades. Additionally, one shear blade is pivotally adjustable about a pin member having an axis extending in the direction of travel of the blades. Further, the drop guides are horizontally adjustable relative to its associated shear blade in the direction of travel of the shear blade and also adjustable about a vertical axis.

Abstract: An angled cutter for cutting stacks of paper or the like comprises two blade assemblies, each of which is formed with a cutting edge portion which is tapered only on one side. Each blade assembly has a solid inside surface. The blade assemblies are self-supporting and detachably connected. At the joint between the two blade assemblies, each of the tapered surfaces is ground off slightly more toward the joint-defining edges and the cutting edge than along the remaining portion of the cutting edge so that a rake is formed at the corner.

Abstract: A laminated core manufacture wherein a plurality of apertured laminations are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the laminations is provided with a through aperture with the projection being eliminated so as to define a nonprojecting surface in the first of the laminations of the stack, with the projections of each of the subsequent laminations extending into and being interlocked with the preceding lamination in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and projection structure or a blanked out apertured structure. The blanked out apertured structure defines the first of the laminations of the stack.

Abstract: A packaging machine is provided in which wire is fed for cutting into predetermined lengths for subsequent formation into U-shaped clips for clinching about a constricted product filled tube. It includes means for varying the length of the cut off portion by adjusting the position of a cut off knife along the wire against the biasing action of a cooperating wire receiving member or cut off round.

Abstract: The invention relates to hydraulically powered shears for metal sheets and plates and particularly to an improvement in the means for adjusting and controlling the rake angle or slope of the movable shear knife in such machines. In the present disclosure a rod member is pivoted at one end and normally is disposed along a line parallel to the direction of reciprocation of the ram of the shear. The upright member has a cable connection with a servo valve which controls the fluid circuitry of the shear to adjust the relative positions of the hydraulic motor means at opposite sides of the ram to change the inclination of the ram.When the rod member is in normal position the servo valve is blocked and the rake angle is maintained but when the rod member is adjusted angularly in either direction it operates through the cable means to adjust the servo valve in one direction or the other to change the relative vertical positions of the motor means.

Abstract: A shear comprising a frame, a fixed blade, a movable blade cooperating with the fixed blade to cut sheet material disposed therebetween, a hydraulic power cylinder for moving the movable blade upwardly and downwardly past the fixed blade, a lever for drivingly connecting the power cylinder to the movable blade, the lever being pivotally mounted upon the frame to provide oppositely extending lever portions, one pivotally connected to the movable blade and the other pivotally connected to the ram of the power cylinder, a roller journal mounted upon brackets to extend across the frame with the brackets selectively adjustably movable to position the roller, and springs for yieldably urging the movable blade against the roller. The power cylinder is controlled by a linkage and lever mechanism which moves the control member of a valve in response to the movement of a foot pedal as well as the movement of the lever which drivingly connects the power cylinder to the movable blade.

Abstract: The punch is surrounded by a tubular housing carrying a stripper plate and having a hinged door which is latched closed unless the punch is retracted to a tool change position. In addition, means sense the position of the door and prevent automatic cycling of the punch if the door is not closed. To adjust the stripper plate vertically, provision is made of compactly nested threaded rings and, to orient the punch angularly, provision is made of an adjusting mechanism which acts on a rod projecting from the upper end of a hydraulic cylinder and connected to a downwardly projecting ram for reciprocating the punch.