Abstract: An apple coring apparatus (10) includes a first arm (16) which is pivotally connected to a base plate (12). A lever arm (20) is pivotally connected to the first arm (16). A sliding tube (36) is mounted on a guide rod (38) which is mounted normal to the base plate (12). A tubular knife (30) is pivotally connected to the lever arm (20). A blade (34) is rigidly connected to the tubular knife (30) and to the sliding tube (36). A blocking arm (54) is pivotally mounted to the plate (12) and rigidly connected to a handle (58). The blocking arm (54) includes a notch (54a) which is positioned to receive a pin (24) mounted longitudinally on the lever arm (20). When the lever arm (20) is forced downward, the pin (24) is received in the notch (54a) and the downward travel of the lever arm (20) is blocked.

Abstract: Safety apparatus for use on press machines of the type including a barrier guard. The apparatus isolates the kinetic energy source from the point of operation by removing a section of the ram whenever the barrier guard opens to provide access to the die area. The ram section is replaced when the barrier guard is closed. The removal and replacement of the removable ram section occurs concurrently with the opening and the closing of the barrier guard.

Abstract: Apparatus for slicing or skinning bacon, fish or like products has a frame which supports an adjustable knife downstream of an endless belt conveyor serving to deliver successive products along a horizontal path into the range of a rotary traction wheel which is driven to advance the products past the knife. A rotary hold-down device with a row of elastic discs is installed in a shroud which normally overlies the knife and the traction wheel as well as at least a portion of the conveyor and is mounted on two pairs of levers which enable the hold-down device to move in parallelism with as well as at right angles to the upper reach of the conveyor so that the discs can conform to the configuration of the upper side of a product approaching and moving past the knife. The shroud is biased to maintain the hold-down device in a starting position close to the cutting edge of the knife in the absence of products in the path.

Abstract: A safety boot assembly for use with a press brake operated C-frame punch or the like tool which fits between the ram of the press and the upper arm of the C-frame to prevent a human limb from being inadvertently placed in any gap between the ram and C-frame. The disclosed assembly includes a corrugated boot and end fittings to attach its ends to the ram and C-frame.

Abstract: In apparatus for the placement and alignment of punch knives mounted in a knife holder on a punch press, a first swivel arm is pivotally supported at one end on a support for pivotal movement about a vertical axis. A second swivel arm is supported on the other end of the first swivel arm. The second swivel arm is a double-armed parallelogram member pivotally movable about a vertical axis and about horizontal axes at each of the opposite ends. A knife holder is pivotally connected to the parallelogram member at the opposite end from the first swivel arm. Due to the pivotal support of the two swivel arms and the pivotal connection of the knife holder, the knife holder can be moved along horizontal and vertical coordinates. A return member is associated with the second swivel arm for returning it into the horizontal position after the completion of a punching operation.

Abstract: A safety brake for use on presses that provides a positive stop which is positioned so that its braking surfaces will be engaged if the press overtravels its normal home position due to failure of the standard clutch and brake system of the press. The braking surfaces of the emergency brake are moved to a released position when the press is energized to begin a cycle of its operation. Once the released braking surfaces have passed by each other during the normal cycle of press operation, they are returned to their braking positions so as to preclude overtravel of the press past its home position to any substantial degree if the conventional brake of the press should fail.

Abstract: Automatic hollow punch search device and relevant control, for die-cutting machines, particularly for footwear production, in which a mobile head is associated to means to move it to and fro, both horizontally and vertically, above a fixed faceplate on which the material to be cut is placed, together with a hollow cutting punch. The movement means are automatically piloted by a drive circuit interlocked to manual starting means which provides means to carry out a complete head movement operating sequence from its positioning above the hollow punch to its lowering and return to the starting point after cutting.

Abstract: A table for supporting an electric power tool is provided with a safety shut-off device. A bar is pivotably mounted on the side of the table and a shut-off switch is mounted to the table behind the bar. The bar is biased away from the shut-off switch by a spring. If an operator falls or leans against the bar, the switch is actuated to shut off the power to the tool.

Abstract: Protection device adapted for use with a vertical blade cutter comprising a cutting blade. The device comprises a moveable plate for covering the blade and protecting against accidental contact with the blade. The moveable plate is adapted to be retracted during cutting and is further adapted to be otherwise lowered in front of the blade. A bar is provided which is adapted to slide in a guide adapted to be attached to the cutter. The moveable plate is mounted on the bar. A plate support is journaled onto the guide. A rotatable wheel is attached to the plate support. The rotatable wheel, when brought into contact with the bar while rotating, is adapted to raise the bar and moveable plate and whereas disengagement of the wheel from the bar causes the moveable plate to be lowered in front of the blade by virtue of its own weight and that of the plate.

Abstract: A metal cleaning shear is provided for shearing metals and other material wherein there is provided a rocking pivoted beam, a pivotally mounted guard, hydraulic cylinder means, cutting blades, and a control for the hydraulic means and machine.

Abstract: A manually manipulatable device for adjusting the position of a workpiece supported on a machine having relatively movable parts operated by electrically controlled, selectively energizable and deenergizable driving means comprises an elongate arm having a workpiece engageable fork at one end and a support at its other end for manipulation by an operator. The support preferably is pistol-shaped having a grip at one end and a barrel at its other end. The support includes two normally open, manually closable electrical switches in circuit with the machine's driving means to effect energization of the latter under the control of the workpiece manipulating device, but only when both of the switches are closed. The switches are spaced apart from one another a distance greater than that which can be spanned by the fingers of one hand of the operator, thereby preventing closing of both switches unless the operator's hands are on the support.

Abstract: The combination in a food slicer of the type embodying a cutter unit, comprising a plurality of spaced cutter blades, and a pusher unit having a plurality of pusher blades that may be manually moved into and out of intermeshed relation to the cutter blades for pressing tomatoes, or the like, through the cutter unit, of a safety guard having a portion movable upwardly and downwardly between a position wherein it is disposed in overlying relation to the cutter blades, between the cutter unit and the pusher unit, and a position wherein it is disposed above the pusher unit, the safety guard having a projecting portion for preventing the pusher blades being damaged by engagement with the safety guard.

Abstract: A circular cover has a peripheral flange to overhang and enclose the cutting edge of a rotating disk slicer knife in a slicing machine for meat and other foods. A central handle remote from the cutting edge of the knife disc is provided for applying the cover to the knife disk. Magnets recessed in handle protuberances at the rim of the cover secure the cover of the knife disk, these handles being used to pull the magnets free of the knife disk in removing the cover.

Abstract: A portable electric router including a housing enclosing an electric motor, and having a router bit extending from one end of the housing and driven by the motor. A router base assembly includes handles and a flat base plate and is adjustably fixed to the housing. The flat plate supports the router for movement along a work surface and is provided with a central opening through which the router bit extends to engage and penetrate the work surface. The other end of the housing has a support surface upon which the router can rest when the router is temporarily put down during use and when it is stored, or while the bit is changed, or while the base assembly is adjusted relative to the housing for depth adjustment of the bit. A switch is provided on the housing for turning the router motor "on" and "off", and is controlled by a switch operator having a portion which extends through an opening in the router housing support surface.

Abstract: A power tool, such as for example a bandsaw, incorporates a synthetic material moulding which is box shaped and mounts on the rear an electric motor and its housing, and on the front inside the box an implement drive mechanism such as a pulley in the case of the bandsaw. One side of the moulding mounts a switch actuating assembly substantially flush with the side by way of an OFF actuating plate pivotably received in a recess in the side and an ON actuating plate underneath the OFF actuating plate. In a preferred embodiment the opposite side to the one carrying the switch actuating assembly is adapted to rigidly support a structural metal spine member.

Abstract: An anti-kickback device for mounting on table saws or radial arm saws that prevents the saw from throwing the board being cut back into the operator doing the feeding. This is especially useful when ripping.

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: An apparatus and method for the prevention of injury to the operator of a chain saw, which saw includes on-off actuating means, a housing, an engine within said housing, a guide bar, connected to the housing, a cutting chain carried by said bar, said engine having a drive shaft operably connected thereto, and to a centrifugal clutch, a flywheel, gear means meshed in driving engagement with said cutting chain and said flywheel, said clutch engageable with said flywheel for driving said cutting chain, a brake system for slowing the speed of the flywheel to a stop during operation of the saw, and a secondary brake to prevent the re-engagement of the clutch with the flywheel while the on-off actuating switch is on. The brake becoms operative as a result of an electromechanical sensing of a kickback condition, as does the secondary brake.

Abstract: A bacon slicing machine wherein the product is placed onto the exposed horizontal supporting surface of a table which is movable between an extended and a retracted position. The front portion of the table overlies the cutting edge of the knife and the apex of a rotary feeding wheel in the extended position of the table to thus prevent injury to the hands of an attendant. A spring biases the table to the extended position, and a bar is provided at the rear end of the table to be depressed by the hips of an attendant standing behind the table in order to move the table to the retracted position in which the product can be pushed along the supporting surface, along an upwardly or downwardly inclined platform which forms part of the front portion of the table, and into the range of the feeding wheel. The supporting surface of the table and the cutting plane of the knife make an acute angle of between 15.degree. and 50.degree..

Abstract: The disclosure is directed to a perimeter safety switch for machines that require an operator. The safety switch comprises a longitudinal support member that extends around the permimeter of the machine at approximately waist level, and is spaced outwardly therefrom by a plurality of brackets. The support member carries a longitudinal switching element that is actuatable at any point over its length, and which forms part of an electrical circuit for interrupting power to the machine in response to actuation of the switch.

Abstract: A defecting or cut off saw inludes a support for boards and a transversely movable rotating saw blade for cutting the boards to length or cutting away defects therein. The transverse movement of the saw blade is controlled by an electrical circuit, the operation of which is acutated by the simultaneous depression of a pair of spaced cycle switches. The control circuit includes a timing circuit permitting movement of the saw across a board only when both of the cycle switches have been operator actuated within a predetermined period of time of one another. The circuit provides infinite stroke control for returning the saw blade to its start position at any time when one of the cycle switches is released.

Abstract: A shear machine having a blade for cutting successive increments of material from flat sheet work stock has a cutting zone guarded by a curtain of light. Photosensitive means actuates a brake to stop blade motion if an object extends through the light curtain towards the cutting zone. Hold-down mechanism is operated by a lever or the like situated outside of the guarded region to enable the final portion of a sheet of work stock to be manually held in place at the cutting zone without penetrating the light curtain. The plane of the light curtain inclines towards the front of the shear machine enabling the hold-down mechanism control lever or the like to be situated on the machine above the cutting zone where it may be reached without interception of the light curtain by the operator.

Abstract: A mechanical safety device for the reciprocating plunger in downwardly acting presses such as a downstroke or eccentric type, in which the plunger is connected to the piston rod of the press cylinder or to the eccentric. A stopping rod is immovably fixed on the plunger and extends vertically upwardly from the plunger and through a stopping sleeve rotatably mounted on a housing fixedly retained on the press. The rod and the sleeve have cooperating threads, the threads on the rod being divided into at least two sections and the threads on the sleeve being divided into as many sections as the threads on the rod and being spaced by arcuate surfaces. In a first rotary position of the sleeve, the threads engage with each other for stopping the plunger, and in a second rotary position of the sleeve, the threads are moved out of engagement with each other for permitting movement of the rod through the sleeve and thereby movement of the plunger.

Abstract: A table-saw having dual guards, one being that for the saw to run the guard must always be in correct vertical and horizontal operating position covering the whirling saw blade, and the other being that the saw is automatically shut off after a waiting period in the event that the operator is not actually working at a sawing operation. There is a manual over-ride switch for hard-to-do jobs subject to the security of lock and key.

Abstract: An insulated saw blade for use with the automatic safety brake for rotary blade equipment, U.S. Pat. No. 3,785,230, to stabilize the capacitance field produced by the blade. The blade has an inner metallic part which is secured to the arbor of the saw an insulating ring rigidly secured to the inner part and extending completely therearound and an outer metallic ring rigidly secured to the insulating ring and having the saw teeth formed thereon. The insulating ring has a roughened surface on its opposite sides to assist in gripping the brake when applied thereto.

Abstract: A guard for a circular saw having a pair of cranked supports pivotally mounted to the work table at either side of the saw blade, an arm pivotally mounted to the supports extending in line with the saw blade and above it, and a guard member pivotally mounted to the arm having parallel limbs spaced apart and disposed at respective sides of the upper periphery of the saw blade to guard it. There is a plate which joins these arms and which extends transversely of the saw blade to prevent articles cut out from the work piece from being violently ejected from the vicinity of the saw blade. The supports also pivotally carry a plate which is in line with the saw blade and movable between an operative position in which an edge of the plate lies closely adjacent the rear edge of the saw blade, and an inoperative position in which the blade is raised above the table. A further guard member for the front edge of the saw blade extends down from the arm in front of the blade.

Abstract: A self-contained web severing device particularly intended for the folder unit of a continuous web printing press comprising a frame supporting a web severing blade in concealed position, the latter being released for spring operated web severing movement by break sensing devices in the paths of those webs passing through the severing device. The blade also acts to deflect the leading end of the severed web or webs out of the folder unit. Safety means prevent accidental release of the blade during periods when the web or webs are being threaded through the press or the press is being otherwise worked on.

Abstract: Circular saw apparatus is disclosed of the type including saw frame means pivotally connected with a base for pivotal movement between a normal non-cutting position and a cutting position, characterized by the provision of safety locking means for releasably locking the saw frame in the non-cutting position. The locking means includes a stationary locking member connected with the base, a movable locking member movably connected with the saw frame, and spring means normally biasing the movable locking member into engagement with a locking surface on the stationary locking member. Releasing means are provided for releasing the movable locking member from engagement with the locking surface, said releasing means being associated with the hand lever means provided for swinging the saw frame toward the cutting position.

Abstract: The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly.

Abstract: A die press for performing operations on material includes a planar support upon which material is placed and a pressure member movable toward and away from the support. Means for moving the pressure member are provided as well as means for controlling the pressure member moving means. A die carriage upon which a die is mounted is situated between the pressure member and the support and is movable relative to the support in first, second and third directions, one of which is the direction of movement of the pressure member. The linkage for mounting the die carriage maintains the die carriage in the plane of the support throughout the movement thereof. For safety purposes the control means is situated on the die carriage at a portion thereof remote from the path of movement of the pressure member. Preferably, the control means includes a pair of switches which require simultaneous activation in order to energize the pressure member moving means.

Abstract: Disclosed is a hand-operated device for slitting fabric drawn therethrough into strips. The device has a V-shaped bracket which is secured over the edge of a table top by a wedge, without using any tools. Fabric is drawn by hand from the edge toward the interior of the table top between a row of blades extending upwardly from the device and a guard bar disposed over the blades. The device can be disassembled, without using any tools, to reposition the blades so as to cut strips of different widths or to replace blades. Except for the blades, the device is entirely formed of an inexpensive plastic material formed by a process such as molding.

Abstract: A safety means for a skinning and/or slashing machine having a frame means with a skinning blade means mounted thereon which provides skin from the meat product to be skinned as the meat product is moved therepast. A plurality of spaced apart slashing blades are rotatably mounted on the frame means adjacent the skinning blade means and are adapted to slash the meat product to permit the inspection thereof. The blades are supported by a pair of support arms which are pivotally connected to the frame means so that the blades may be moved upwardly away from the skinning blade means. A first normally closed switch means is provided on the frame means and is adapted to deactivate the machine power supply when the support arms are pivotally moved to their raised positions. A transparent safety shield is secured to the support arms and extends over the blades. An inverted U-shaped safety guard extends over the feed conveyor to prevent the machine operator from extending his hands too far towards the skinning blade.

Abstract: An undercut saw having a rotating blade mounted beneath a table for selective raising and lowering movement through a table slot by operation of fluid power means. A blade guard and workpiece clamp is mounted above the table for selective movement toward and away from the table by operation of fluid power means. A pair of manually operable series connected control devices operate the fluid power means.