Abstract: A chop saw comprising a table, pivot member, saw assembly, upper guard, lower guard and lever utilizes the lever to maintain the position of the upper guard and lock the saw assembly in the upper rest position by engaging the lower guard with an extension of the lever. Disengagement of the lever from the lower guard, and pivoting of the saw assembly to the lower engaged position causes the lever to re-engage the lower guard to further open the lower guard and expose the blade.

Abstract: The instant device consists of a circular top plate made of ALMAG 35 aluminum and magnesium alloy material with a centerhole and three through holes near its rim and 120.degree. apart from one another into which three cylindrically shaped pins have been tightly pressed. Three identical beveled metallic blades with rounded holes in them are swivably received one each by the pins. A circular bottom plate also made of such ALMAG 35 material has a centerhole and three broken holes for receipt of the bottoms of the pins when the device is fully assembled plate to plate and held with a bolt and nut from below the bottom plate via the centerholes and adapter means to the rotatory head of a motorized brush cutting unit.

Abstract: An adapter for enabling a single sheet towel dispenser to dispense towels from a roll. The single sheet towel dispenser has a housing with an access opening and a towel support tray within the housing, the tray having a dispenser slot for movement of a towel resting on the tray downward through the slot and outward to the access opening. The adapter has a first member and a second member, each having a lower section and an upper section, with the members joined together at the lower sections to define a towel passage therebetween, with the towel passage of a size to slide downward through the dispenser slot of the tray, and with the upper sections of the members curving away from each other and each terminating in a support section for resting on the tray.

Abstract: A screw shaft supporting structure capable of absorbing elongation of a screw shaft due to changes in environmental temperatures irrespective of the position of the rotary blade on said screw shaft is disclosed. In the sheet material cutting device, that portion of the screw shaft which is supported by a bushing and another portion thereof supported by a frame end absorbs elongation of the screw shaft due to heat. When the supporting member holding the rotary blade is positioned at A in FIG. 1, elongation of the screw shaft due to thermal expansion is absorbed in a gap formed between the stepped portion of the screw shaft and the frame end. When the supporting member holding the rotary blade is positioned at B in FIG. 1, elongation of the screw shaft due to thermal expansion is absorbed in a gap S1 formed between the stepped portion of the screw shaft and the bushing.

Abstract: An apparatus for cutting stacked items on a table saw, or the like, is made up of horizontal and vertical clamps. The horizontal clamps hold the stacked items against an aligning fence and the vertical clamps hold the stacked items against the sliding table. The entire device is held in place on a sliding table of a table saw by guide shoes slidably fitting into a slot in the sliding table of the table saw. A pneumatic manifold and switch control the delivery of an external air supply to the pneumatic clamps and guide shoes.

Abstract: A cutting tool for severing the end of a copper tube or the like, the tool having a cylindrical post for insertion into the tube end, and a pivotal beam having a cutter wheel mounted at one end. A rotatable knob is mechanically linked to the pivotal beam to cause it to pivot toward and away from the cylindrical post. The entire tool may be rotated about the axis of the tube while the cutter wheel is in contact with the tube to cut a circumferential groove into the tube and thereby to sever the tube.

Abstract: A roll slicing mechanism includes a conveyor which moves in a first direction and supports a roll cluster having a pair of joined rolls spaced in a second direction perpendicular to the first direction. A rotatable shaft perpendicular to the conveyor has at an end nearest the conveyor a disk knife parallel to the conveyor, and a roll breaking arrangement spaced opposite the first direction from the shaft in feeding alignment therewith breaks apart a portion of the joint. A spreader arrangement spaced opposite the first direction from the roll breaking arrangement in feeding alignment therewith positions and spreads the rolls of the pair prior to engagement of the rolls with the roll breaking arrangement. In a preferred embodiment, the spreading arrangement includes two rotatably supported wheels oriented to converge toward the conveyor and opposite the first direction, the wheels being supported for movement toward and away from the conveyor and being resiliently urged toward the conveyor.

Abstract: The instant invention is a tire cutting apparatus which operates in conjunction with a conventional band saw providing a used tire treatment mechanism that is affordable to purchase and maintain. A tire support assembly having flexible bands to expand to the inner perimeter of a tire casing is used with tire rotational speed controlled by a motor which frictionally engages an outer perimeter of the tire. The tire casing is further stabilized during the cutting operation by a wheel platform which supports a conventional band saw. The tire casing is rotated during or by band saw operation cutting the tire casing in two equal halves with smooth edges. The apparatus further includes an enclosure providing a catch basin for material cut from the tire and a cover allowing the apparatus to be stored or used as a work table. Wheels allow the enclosure to be easily moved and stood upright in a corner should space be a problem.

Abstract: In this method for row-wise separation of rectilinear, plastic porous concrete bodies formed by longitudinal and transverse cutting of a rectilinear plastic porous concrete block preferably standing on edge. After turning back through 90.degree., the cut block is so placed with its major side surface on a plurality of parallel laminae for the separation and so that its longest side edge runs parallel to the direction of the laminae and that each row of porous concrete bodies is supported on at least one lamina. Before the separation, a clamping force is exerted from above on the upper ends of all the porous concrete bodies of the row to be separated. Independently thereof, a clamping force from above is exerted on the upper ends of all the porous concrete bodies of the stationary row in contact with the row to be separated.

Abstract: A high speed sheet feeder for use with utilization devices that process sheets comprises a source of sheets, that can include a web cutter and a transport unit having a surface along which the sheets travel in a downstream direction. The surface can include a pair of conveyors that act as sheet justifiers and have at downstream ends thereof wait stations that can comprise pairs of nip rollers. Sheets are halted at each wait station and simultaneously passed along the surface as a sheet request signal is received from the utilization device. The transport unit can further include a bump/turn module that receives sheets from the conveyors and passes them at a 90.degree. angle to their initial direction of travel into the utilization device via a port in the utilization device adapted to feed sheets upon request.

Abstract: A portable tube cutting apparatus which facilitates smooth, even cuts through a boiler tube-wall includes a frame supporting a movable carriage, a motor driven cutting tool secured to the carriage, and an articulated support means which allows for rotation of the cutting apparatus about a fixed point of securement to the boiler tube-wall and thereby permits lateral repositioning of the cutting apparatus relative to the point of securement to the boiler tube-wall. The apparatus has the advantage of permitting relatively long cuts such as up to about 3 feet to be made in a tube-wall While reducing the amount of time and effort needed to install and set up such apparatus relative to conventional track mounted apparatuses.

Abstract: An improved system and method for cutting a quilting piece from fabric, which quilting piece has a constant width sewing expanse around the exposed area of the quilting piece for sewing quilting pieces together. The system includes a template conforming to the shape of the exposed area of the quilting piece and a cutter guide having a rail positioned along one edge of the cutter guide. The width of the rail is selected to correspond to the desired sewing expanse. The template is first positioned on the fabric to be cut and a cutter guide is positioned on top of the template with the inner guide edge of the rail positioned in abutting relation with an edge of the template. The fabric is then cut with a cutter along an outside cutting edge of the rail of the cutter guide.

Abstract: A cutter apparatus having: (a) rotary cutters locked on a common horizontal shaft at intervals, (b) a motor for the cutters, (c) a cloth feeder, (d) a cloth piece separator, (e) a first conveyor to transport the cut cloth pieces to discharge them from the cutter apparatus, (f) a cloth length measurer, (g) a sorter to sort out those cut pieces whose measured lengths are greater than a predetermined value, (h) a second conveyor to transport the cut cloth pieces sorted out by the sorter back to the feed side of the cutter apparatus, (i) a controller to supply a drive signal to the sorter when a measured length of the cloth is greater than the predetermined value to thereby cause the sorter to sort out cut pieces of such cloth and also to supply a stop signal to the sorter when a predetermined time has lapsed from the start of sorting to thereby cause the sorter to stop sorting, and (j) a button remover machine located at the feed side.

Abstract: Guide bar for chain saws, where the chain is supposed by a nose sprocket while traversing the front end. Regions of the edges of the guide bar are locally hardened to a higher hardness than the rest of the guide bar. The regions of hardness are only where the chair impacts the bar near an attachment end of the guide bar after having left the drive sprocket of the power socket, and where the chain settles on the guide bar edge after having been supported by the nose sprocket while traversing the nose curvature.

Abstract: An edge trimmer system in accordance with the present invention includes a conveyor system, a cutting assembly, and a pair of starter punches. The cutting assembly includes a pair of side trimmers each with a cutting device which trims one of the elongated edges of a raw strip of steel to produce a parent steel strip and two scrap steel strips.

Abstract: Multiple saw blades in a gang rip saw apparatus and like multi-blade cutting apparatus may be selectively adjusted to differing spacings from one another by mounting a threaded sleeve on the rotary arbor of the apparatus and mounting a plurality of electric drive motors on the sleeve with the rotor of each drive motor threadedly engaged with the sleeve and the stator held fixed against rotation relative to the sleeve by longitudinal guide rods, which carry electrical supply wiring to the stators from a slip ring assembly. Each saw blade is affixed annularly to a respective one of the stators. Individual energization of each stator causes the respective rotor to drive the motor/blade assembly along the sleeve to a desired position relative to the other saw blade/motor assemblies. With the saw blade/motor assemblies selectively positioned at desired relative spacings, the arbor is driven to rotate the saw blade/drive motor assemblies integrally with the arbor for "gang" cutting operation in conventional manner.

Abstract: A pneumatic ejector comprises a rigid support member having a base portion and an upstanding boss integral with the base portion, and an elastomeric ejection element having a diaphragm portion and a skirt portion surrounding the diaphragm portion and secured to the boss. The support member has an air inlet passage for supplying air under pressure to move the diaphragm away from the boss. The upper end of the upstanding boss is concave and the diaphragm is of complementary shape. The diaphragm has an integral protrusion upstanding from a central region of the diaphragm. Additionally, the diaphragm has an integral protrusion which depends from a central region of the diaphragm and which extends into a through bore in the upstanding boss, the through bore communicating with the air inlet passage in the support member.

Abstract: In a follow-up slotting tool for continuously punching workpiece (W) fed between a punch (3) and a die unit (5) at a predetermined pitch, the punch (3) is formed with a shear angle (.alpha.) at a lower end surface thereof in such a way that a front end of the punch is cut into the workpiece but a rear end thereof is not cut into the workpiece when lowered at a predetermined downward stroke; and the die unit (5) is provided with a counter member (15) for raising a residue (W.sub.A) partially cut away from the workpiece, after the punch has been lowered at the predetermined downward stroke, and with a cutting edge (21) for cutting off the partially cutaway residue (W.sub.A) raised by the counter member in cooperation with the punch, when the punch is lowered at the succeeding predetermined downward stroke.

Abstract: An apparatus for cutting a conveyor belt. The conveyor belt is clamped against a cutting surface on the base of the apparatus by a pair of parallel clamping bars. A lever arm is pivoted to, and is axially slidable on, a shaft disposed parallel to the clamping bars and the lever arm carries a cutting head. A pair of blades are mounted in an acute angle relation on the cutting head, and as the lever arm is manually pivoted downwardly, the blades cut a pair of slits in the belt. The lever arm is then pivoted up and advanced axially along the shaft and the cutting action is repeated to thereby cut a plurality of V-shaped fingers in the belt, which can be interdigitated with fingers of a second belt end and subsequently bonded together to provide an endless spliced belt.