Abstract: An apparatus for cutting fabrics and the like includes a workbench on which the fabric is placed, a first movable carriage freely movable in one direction along one side of the work bench, and a second movable carriage mounted on the first carriage which is freely movable in a direction perpendicular to the direction of movement of the first carriage. A cutting means, including a heated tip, is swingably mounted on the second carriage, and the heated tip is swingable into contact with the fabric for cutting a desired mark or pattern out of the fabric. The apparatus additionally includes an absorbent member for cleaning the heated tip after a cutting operation. The apparatus permits an automatic and efficient cutting operation for marks and can be manufactured economically.

Abstract: An apparatus for hot tap cutting of plastic pipe comprising an electrode having a cutting edge, means for heating said electrode, and an insulating sheath, means for controlling movement of the electrode, and a housing containing the electrode, said housing sealingly securable to at least a portion of a plastic pipe whereby fluid pressure is maintained in the plastic pipe.

Abstract: A trimmer apparatus (10) comprising dual moveable belts (64) and (90) for removing a dome scrap (12) from a hollow, blow molded plastic bottle (14), is described. The dual belts are supported on spaced apart pulley systems (20) and (22) forming a linear path (24) along which the bottle travels. The distance between the pulley system is adjustable for different size bottles. A groove (12A) on the dome scrap is engaged by the belts which are rotating in a similar direction. However, one belt is moving somewhat faster than the other. This provides for moving the bottle linearly along the path, while spinning the bottle. As the bottle spins past a knife blade (112) the dome scrap cut from the bottle.

Abstract: A sheet dispenser for dispensing thin film such as collagen film for wrapping food. The dispenser consists of a cabinet in which a row of collagen film is supported on rollers and the film is pulled off the roll by driven rollers. When a predetermined length has been pulled off the roll it is severed by a hot wire system in which the hot wire is located between rollers and supported in a tension head controlled by spring. A cutter bar supported on pivoted arms moves across so as to press the film against the hot wire during the cutting action.

Abstract: Shears are supported for reciprocating displacement within an open frame so that they can be conjointly displaced from retracted positions to advanced overlapping positions where a runner of molten glass will be severed. A pair of covers close the open frame except for the central portion where the runners pass through. A pipe having a plurality of holes is secured to the front edge of the covers so that coolant can be directed downwardly and inwardly against the reciprocating shears.

Abstract: Forming apparatus (10) embodying the concepts of the present invention has a base (12). A carriage (14) is supported on the base (12) so as to be translatable along a translational direction (16). A cradle (46) is mounted on the carriage (14) for rotation about a rotational axis (48). The cradle (46) is adapted to support a block (B) of material. A cutting member (92) is adapted to engage the block (B) of material upon translation of the carriage (14) along the translational direction (16). A rotational rate selector (70) selectively controls the range through which the cradle (46) rotates in response to translation of the carriage (14). The method embodying the present invention thus utilizes the following steps. The block (B) to be contoured is mounted on a cradle (46) having a translational direction (16) and a rotational axis (48).

Abstract: A pellet making machine used in a pellet producing process has a rotary cutter mounted to the outer periphery of a hollow rotary shaft. A fixed blade is disposed opposite to the rotary cutter, and a pellet exhaust chute is disposed below the rotary cutter and slopes downwardly therefrom. The rotary cutter is provided with an interior cooling chamber and the hollow rotary shaft is provided with water inflow holes and exhaust holes communicating with the cooling chamber of the rotary cutter. A water supply tube extends into the hollow rotary shaft and is supported within the shaft by a partition wall, which also forms a water supply passage communicating with the water inflow holes of the hollow rotary shaft and a water exhaust passage communicating with the water exhaust holes of the hollow rotary shaft.

Abstract: This invention is a novel technique for making a solar energy collector in a fresnel configuration by using unique hot-wire tools. This process uses either a hot-wire radial cutter to produce concentric grooves and a hot-wire beveled cutter to produce angled concentric surfaces in a base material in combination, or a hot-wire combination cutter to simultaneously produce a single concentric and angled concentric surface in a base material. This shaped base material is now suitable for affixing reflective material.

Abstract: A method and apparatus for producing helical slices of an object, such as a potato. The apparatus includes a rotatably mounted knife assembly having one or more sets of knife blades arranged in a spiral pattern. Each set of knife blades produces a set of helically shaped potato slices. The spiral arrangement of each blade set reduces the torque needed to slice an object using the knife assembly. The knife assembly includes a knife bearing rotatably mounted within a housing. To rotate the knife assembly, a gear rotatably mounted on a mounting member engages and drives an outer annular surface of the knife bearing. A liquid is injected through a channel within the knife bearing housing, and preferably also through a channel within the gear mounting member, to flush fragments of the objects being sliced from the knife assembly and gear.

Abstract: A revolving speed regulating mechanism for a circular sawing machine has a speed regulation rotating handle, a rotary positioning vise and a cooling system. The speed regulation rotating handle is positioned on a housing of the gear box of the circular sawing machine with an actuating rod on its lower end extending into the gear set so as to change gear ratios. The rotary positioning vise is positioned on the base of the machine.

Abstract: An improved cutting mechanism for cutting plastic netting includes a punch which is movable, toward and away from a heated anvil knife edge.

Abstract: A portable hand-cutting tool having a pair of perpendicularly arranged handles which is used for separating the trailing edge of bonded elevator or rudder skin panels following removal from an aircraft for repair. The tool features an electrically heated knife blade in combination with pneumatic controls for linearly vibrating the knife to achieve the cutting. The blade is fabricated from spring steel, has a leading edge sharpened with a full width taper, and is directly heated by way of electrical currents passing through the blade electrodes connected to the blade.

Abstract: The invention relates to a portioning device for deep-frozen foodstuffs, more particularly fish. The portioning device is adapted to the portioning of parallelpipedic slabs (3). The slabs (3) are fed lying flat in the transverse position via a conveying path (6) to a drum (2) which is disposed above the conveying path (6) and whose generated surface (10) is equipped with heated separating webs (11, 12). The heated separating webs (11, 12) of the drum (2), which is driven in synchronism with the feed, subdivide the slab (3) in synchronism into individual portions (4,5). The shape of the portions (4,5) depends on the arrangement of the separating webs (11,12) on the drum generated surface (10). The subdivision of the slabs (3) into individual portions (4,5) is performed free from cutting losses, since the heated separating webs (11,12) soften up the deep-frozen foodstuffs at the cutting place.

Abstract: An electrical impulse hot hole punch apparatus is presented herein for making a tear-resistant hole in a sheet of thermoplastic film. The apparatus includes an electric heating element which is supported for selective reciprocal movement transverse to a sheet of film between a first position, remote from the film, and a film melt position at which the heating element is positioned proximate to the film. An impulse generating circuit is operative in response to the heating element being moved to its film melt position for purposes of supplying an electric current pulse to the heating element. The current pulse has a time duration on the order of one half cycle of an AC voltage pulse and is of a magnitude sufficient to heat the heating element to a temperature in excess of the melting point of the film.

Abstract: A machine which is constructed for slitting travelling webs, such as corrugated boards or similar material, characterized by a slitting tool with the shape of a thin rotary blade, which is provided with a cutting peripheral edge. The rotary blade is contained within a holder so that only a small portion of the cutting edge will emerge from a narrow slot in a wall of the holder, which wall is placed very close to the path of the web. The holder also contains a liquid for cooling and lubricating the rotary blade.

Abstract: The device for cutting textile material and sealing the edges of the cut material comprises a heated resistance wire of round cross section supported in a supporting means. The wire forms a flattened central portion shaped to form a semi-circular bow having a symmetrical shape with a curved outer edge ground to a feather cutting edge, an inner edge and two lateral flat faces parallel to each other along which the edges of the textile material are moved after being cut by combined mechanical and thermal action of the wire. The edges of the textile material are sealed thereby. Since the temperature of the wire can be kept relatively low, no ridges of melted material are formed along the edges of the textile material.

Abstract: In a method of adjusting and controlling a cutting device comprising two rollers counter-rotating about parallel axes and provided each with a set of blades where each blade of one roller combines with a blade of the other roller to create a scissor by which discrete pieces are cut from a continuous strip of material, heat is applied to raise the temperature of the cutting device to a selected value higher than the normal operating temperature of the machine; thereafter, having set the blades of each scissor initially by way of a system of adjusters associated with at least one of the two blades, the temperature of the cutting device during operation of the surrounding machine is maintained at a value substantially equal to the selected value by way of monitoring and control media.

Abstract: A hot knife assembly for cutting excess organic polymeric material from a thermal forming mold includes a blade-like knife in the form of a thin flat plate having an inner edge connected to a heater and an outer edge with a cutting surface thereon. The thin flat plate has two flat surfaces substantially encapsulated by a refractory wedge. The refractory wedge in formed silicone material and extends coextensive and adjacent the blade-like knife for preventing stringing or re-welding of the cut material.

Abstract: A saw-blade for sawing living human bone during surgical operations, the saw-blade (1) presenting on at least one side (10) at least two saw portions (8, 9) and said saw-blade (1) having at least one inner space (14) through which coolant (18) is adapted to flow for cooling the saw-blade (1) during sawing. For efficient direct cooling of the saw portions (8, 9) and continuous cleaning thereof during sawing, the space (14) extends up to the two saw portion (8, 9) and is open between them in order, on one hand, to conduct coolant (18) to the saw portions (8, 9) for cooling them, and, on the other hand, to cause coolant (18) to emerge between the saw portions (8, 9) for carrying off bone residues or other saw residues in a direction away from the saw portions (8, 9).

Abstract: An apparatus is provided for stacking flat articles, such as double bags, which have been severed by hot-wire welding from a continuous tubular or semitubular plastic film and have opening-defining edges adjacent to their center lines. The bags are delivered by a transfer apparatus, called a wicketer. The wicketer has feeding arms, which are secured to a shaft and rotate about a horizontal axis and which are arranged in pairs in a starlike array. The bags are needled adjacent to their longitudinal center line on a holding plate, which is provided in a stacking station and carries upstanding stacking pins or needles, so that stacks are formed. Two radial holding plates are rotatably mounted on the shaft or axle and are connected to separate respective drives for pivotally moving the holding plates to a stacking position for receiving the articles.

Abstract: A method and apparatus for trimming solid stick deodorants to provide for a protruding rounded deodorant stick in the container in a continuous manner on subsequent deodorant sticks whereby the deodorant stick is brought into registration with a means for raising the solid deodorant stick to a predetermined height, the deodorant stick then being transported into registration with a rotating knife which trims the deodorant stick and imparts a rounded oval configuration to the top of the deodorant stick, the deodorant stick then being transported to a conveyor and released for further packaging. The apparatus and method accomplishes the trimming in a continuous and automatic manner.

Abstract: In accordance with the present invention, a punching assembly is provided which includes a punch slidably mounted in a housing. An air chamber is located between the punch and the housing for air cooling the punch, with means associated between the housing and the punch for automatically transferring air into the chamber in response to the reciprocation of the punch in the housing. The punch has a flange with a sliding fit in the housing to define a piston for changing the volume of the air chamber. In accordance with another feature of the invention, the stripper plate is removable and is automatically locked in place when inserted, i.e., it is self-locking.

Abstract: Apparatus for severing a plurality of plies of a thermoplastic material and sealing the severed margins thereof is provided. The apparatus comprises a hot-wire element proximate the thermoplastic material for severing and sealing the thermoplastic material. The apparatus further comprises a chamber or manifold for enveloping the hot-wire element in an inert atmosphere which impinges on a proximal portion of the thermoplastic material to be severed and sealed. The apparatus further comprises an actuating mechanism, associated with the hot-wire element, for translating the hot-wire element toward the proximal portion of the thermoplastic material. As a result, the hot-wire element severs the plurality of plies and seals the severed margins thereof so that the severed margins are enveloped by the inert atmosphere impinging on the thermoplastic material.

Abstract: A cutter supporting unit for a tire grooving apparatus having a tire supporting shaft and a cutter supporting unit which brings a cutter in or out of contact with a tire held by the tire supporting shaft, wherein that said cutter supporting unit includes a cutter holder which holds the cutter and a cutter supporting frame to which the cutter holder is releasably connected. The unit largely reduces time and labor necessary for the cutter replacement and improves tire grooving productivity.

Abstract: A hair treating implement which has an electrical heating wire, a slidably removable support which the heating wire under tension, and a hand grip which can be connected with the support. The support is detachably connected to the hand grip by a longitudinally slidable tongue--and--groove interfit, and when connected, is engaged with electrical contacts in the hand grip. Electrical power is supplied to the heating wire through either an internal power source or an external power source, and hair is cut by the heating wire which is heated by the electrical power.

Abstract: A fiber cutting tool is disclosed which comprises a heated element cartridge and a body. The heated element cartridge comprises (a) a blade formed from a fast heating resistance heating element encased in a thermal shock resistant and electrical resistant material, such blade having a distal end and a proximate end; (b) an element cover having a distal end and a proximate end which encloses the proximate end of the blade; and (c) a cartridge housing that encloses a portion of the proximate end of the element cover. In preferred embodiments, the blade is formed from a tungsten resistance heating element encased in a silicon nitride composite material.

Abstract: System for cutting and sealing overlapped film for packaging objects by a blade projecting between heated bars, with means movable along slots in the blade to adjust the blade projection.

Abstract: An apparatus for slitting foil (14) of thermoplastics material comprises a mover to move the foil (14) through a slitting station (1), the slitting station (1) having a first slitting blade (2) having a sharp front edge (4) located extend transversely through the path of the moving foil (14), and that part (5) of the blade (2) behind the front edge (4) having each side (6), sharped to be non-intrusive into the slit and melted thermoplastics material foil (14), a heater (8,9) to raise and maintain a temperature of the slitting blade (2) to a temperature equal to or above a melting temperature of the thermoplastics material foil (14) selected to be slit by the slitting blade (2), and a cooling blade (3) located behind and aligned with the slitting blade (2) and having two sides each adapted to be aligned with the corresponding side of the slit of thermoplastics material foil (14) and provide by both contact and radiant heating effects, a substantial cooling effect.

Abstract: A cooling chamber on a microtome has an internal space which is observable and accessible from above and which accommodates an object holder and a tool for processing the object. The cooling chamber structure also includes a supply tank for accommodating a liquid cryogenic agent, the tank communicating with the cooling chamber space by way of a downwardly leading feed conduit for evaporated gaseous cryogenic agent. The feed conduit is directly in the form of a heater which can produce a controllable heating action so that the gaseous cryogenic agent can be heated along its flow path from the tank into the cooling chamber space, to provide for uniform temperature distribution in the cooling chamber space.

Abstract: There is provided a method and apparatus for maintaining the cutting conditions constant at a rotary punch by bringing the rotary punch to a constant, predetermined temperature and maintaining the rotary punch at that temperature. Tempering elements are included in the rotary punch so as to maintain constant and set the spacing of the cylindrical envelope described by the cutting edge or edges from the opposing tool.

Abstract: Continuously produced plastic bags are made with cutouts in the bags to serve as handles for the bags. A rotary wheel set is used to interface with a circumferential knife blade to cut the holes in the bags. An improved bag tensioning platen and holding apparatus is provided to improve the uniformity of holes being cut in the bags.

Abstract: A web feeding, cutting and dispensing machine includes a pneumatic cylinder for moving a hot wire to cut measured-length sheets from web stock. A pneumatic clamp cylinder moves a clamp bar for momentarily clamping the web during cutting. Upon pressing a start button, a pneumatic control valve sequentially operates the respective cutting and clamping cylinders for quickly retracting the hot wire, while more slowly retracting the clamp. Conversely, after the next measured web length has advanced, this control valve again sequentially operates these two cylinders in reverse order for quickly clamping while slower cutting. This dual control by one valve is advantageously achieved (1) by throttling air flow in retracting the clamp cylinder relative to retracting the cut cylinder, and conversely (2) by throttling air flow in advancing the cut cylinder relative to advancing the clamp cylinder.

Abstract: A device for cutting plates of soft material, such as synthetic material foam plates or plates of glass wool. Synthetic material foam plates are cut with a heated cutting wire. The device consists of two separate parts A and B. Part A comprises a base plate (1) with lateral guides (2) for a press-on cutting rule (3) . On the front of the guides (2) there are arranged electrically conducting guide strips (5), which are insulated from the guides (2). The guide strips are connected to a current source (not represented). Part B is a frame-saw type bow, between the arms (8) of which there is arranged the cutting wire (6). When the bow is pressed with its arms onto the guide strips (5), current flows through the wire (9) making it possible to cut. Soft plates of glass wool are cut with a knife (not represented), which is guided along the press-on cutting rule (3).

Abstract: A method of forming a long narrow opening in a layer of electrically conductive material on a carrier of synthetic resin material. A cut, extending into the carrier, is made with a cutting tool having a temperature within the melting range of the material of the carrier. The cutting tool takes the form of a gouge which is disposed at an angle to the plane of the carrier with its concave side facing the carrier. The carrier performs a relative movement relative to the gouge in the direction of the concave side of the gouge.The material removed from the layer of electrically conductive material is picked up by a pick-up device and removed from the gouge in the form of a ribbon.

Abstract: A saw guide system having gas lubricated bearing surfaces and liquid contact cooling of the saw blade is described. The gas lubricated bearing surfaces enclose a liquid contact coolant chamber providing a gas seal confining the liquid coolants. The use of regulated gas lubrication greatly reduces friction between the saw blade and saw guide while providing powerful centering forces which hold the saw blade precisely in position. The use of gas sealing allows the liquid coolants to be recirculated in a closed loop piping system, thus eliminating discharge to the environment while providing increased contact cooling of the saw blades.

Abstract: The invention provides for placing a material to be scribed in a gaseous atmosphere and contacting the surface of the material with a non-cutting heated tip. The heated tip is rounded to prevent cutting and is moved relative to the material. The tip is heated during the scribing operation, either continuously at a prescribed level, or discontinuously in order to maintain the average temperature at a prescribed level.

Abstract: Method and apparatus are disclosed for cutting a slit along the length of a pipe in such a manner that expansion of a diameter of the slitted pipe is possible without creating a gap at the slit. This is accomplished by advancing the pipe to be slit past a cutting edge that non-radially traverses the inner and outer circumferences of the pipe wall. In a preferred embodiment the cutting edge, which traverses the pipe wall, is positioned tangentially with respect to the inner circumference of the pipe wall and extends from the inner circumference to intersect the outer circumference of the pipe wall.

Abstract: A gob severing mechanism comprises a single blade which severs a series of gobs by passing rapidly through columns of glass, severing a first series on movement in one direction and a second series on movement in the other direction. In rest positions on opposite sides of the glass columns wherein the blade is positioned in shrouds in which it is cooled by a mist of coolant, e.g. water.

Abstract: A coolant supply nozzle apparatus for a slicing machine includes a body, a first mobile member, a second mobile member, a nozzle tube, a first positioner and a second positioner. The body has a pivot shaft disposed so as to extend axially of the blade. The first mobile member is pivotally mounted on the shaft. The second mobile member is mounted on the first mobile member so as to be movable in a direction parallel to the shaft. The nozzle tube is mounted on the second mobile member and has an opening end adapted to be directed toward the cutting edge of the shaft. The opening end is shifted from the pivot shaft radially of the blade. The first positioner serves to position the first mobile member in place while the second positioner serves to position the second mobile member in place.

Abstract: Braided plastic sleeving useful in electronic applications is readily cut by means of a hot wire which is advanced through the sleeving when in flattened form at a controlled rate. It is important that the sleeving be under tension at the location where the cut is to be made. The size of the heated wire and the rate of advance of the heated wire through the flattened braided sleeving relative to the size of the braided sleeving is important to obtaining cutting and sealing of the ends of the braided sleeving without welding the ends shut. Means and method for achieving this is described herein.

Abstract: A cryogenic seal, and a cryogenic ultramicrotome using the seal are presented. The seal allows a microtome arm to pass through an aperture in the wall of a cryogenic microtome chamber providing thermal insulation while allowing manipulation of the microtome arm within the chamber. The seal includes a thermally conductive seal container having a number of thermally insulating baffle inserts therein. The baffle inserts are placed within the seal container to form a plurality of baffle chambers, and each baffle insert includes an aperture which is larger in circumference than the external circumference of the microtome arm. Within each baffle chamber is a baffle membrane, each membrane having an aperture through which the microtome arm passes in sliding contact.

Abstract: The severing of a shirred stick from unshirred casing is accomplished by pressing and annular tear edge directly against the last-shirred end of the stick and tearing unshirred casing away from the stick along this edge. The result is little or no tail of loose casing at the last-shirred end. Characteristically, the resulting torn ends both extend normal to the casing longitudinal axis. In addition, this torn end at the first-shirred end of the stick is clean and continuous whereas the torn end at the last-shirred end of the stick contains one or more tags or loose shreds of casing.

Abstract: An automatic cutting device for trimming off the parts (15) of an intermediate sheet (6) of plastics material which extend beyond a laminated pane (2) during manufacture. The device comprises a cutting head (1) provided with a blade (10) carried by a blade holder (23) which is heated by induction; means (11, 16) which hold the parts of the sheets of plastics material to be cut in a position at least substantially perpendicular to the plane containing the cutting edge of the blade (10); and means (9) causing relative displacement of the cutting head (1) along the edge of the pane (2).

Abstract: A punch apparatus for punching hole patterns in thin sheet material. The apparatus includes a housing having a liquid-cooled cavity therein; a coil mounted in the liquid-cooled cavity; a driver disk made of a highly conductive material mounted in the liquid-cooled cavity, the driver disk mounted adjacent to the coil; a driver button located outside of the liquid-cooled cavity but in communication with the driver disk; and a punch element for perforating thin sheet material aligned with the driver button. Finally, the apparatus includes an electrical source for energizing the coil with a pulse of electrical energy for generating flux linking the driver disk and the coil to repel the driver disk from the coil, thereby translating the driver button and the punch element, causing the punch element to perforate a thin sheet of material.

Abstract: The present invention includes a reversible concrete cutting saw blade and one or two blade attachment plates having radial grooves formed in the blade engaging faces thereof, such that when the plates and blades are joined, radial passageways are formed between the plates and the blade. An inlet tube, communicating with a rotatable inner hub introduces cooling fluid into internal passage ways within the hub under positive flow conditions, thereby causing the fluid to flow through the hub to the radial passageways in the plates and then be centrifugally dispersed down the grooves along the surfaces of the blade.

Abstract: A thin wafer for cutting plastic tubes which are to be butt welded together includes a high temperature insulated plate-like core with a resistance circuit on the core for heating the wafer to a temperature sufficiently high to melt through the tubes. A glass layer may be on the outer surface of the water, particularly in the contact area with the tube. The wafer may be used in an arrangement wherein residue is removed from the water by having the residue adhere to unused portions or stubs of the tubes which then would be stripped from the wafer.

Abstract: According to the invention, a heat knife 1 is spaced from and disposed parallel to an arm 8 for holding the heat knife 1. A plurality of spacers 11 and a plurality of pull bolts 10 are installed between the heat knife 1 and the arm 8. The pull bolts 10 is adapted to connect the heat knife 1 to the arm 8 and pull the heat knife 1 toward the arm 8 to reduce the distance therebetween and clamp the spacers 11 between the heat knife 1 and the arm 8, whereby the heat knife 1 and the arm 8 are held parallel to each other.

Abstract: A means and method for applying a stabilizer ply to a tire building drum and more particularly a means and method for cutting and applying the stabilizer ply material and specifically means for cutting the stabilizer ply material between cords disposed therein and correcting for variations of the cord angles during the application process in order to provide an improved splice between the leading and trailing edges of the stabilizer ply material.

Abstract: A method of terminating a set of leads integral with a winding on a dynamoelectric machine stator assembly with the winding and the leads formed of magnet wire having a conductor with a dielectric material coating adhered in insulating relation thereto, and a set of dielectric tubes extend about the leads, respectively. To practice this method, the tubes are arranged in preselected positions with the free ends of the leads extending beyond one opposite end portion of the tubes, respectively. Each tube is melted through to sever a distal section from each tube adjacent its one opposite end portion while the insulating integrity of the dielectric material coating on the leads is maintained.

Abstract: An apparatus for making tapered plastic shingles including a conveyor for moving a block of plastic shingle material along a linear path and at least one heated wire extending transversely across the path to cut the block into two or more tapered shingle slabs. The shingle slabs are thereafter cut to form shingles or slotted to resemble individual shingles of desired widths. One end of the wire is adapted to be adjusted vertically to selectively vary the acute angle of the wire relative to the horizontal plane to thus vary shingle taper. A mechanism is also provided for continuously reciprocating the wire vertically to impart a textured surface to opposed, cut surfaces of the shingle slabs.