Abstract: A press machine having a composite piston assembly, a lubricant oil recovery system, and interchangeable die alignment members. The composite piston assembly includes a primary piston member and a secondary piston member attached thereto for movement with the primary piston member. The secondary piston member includes recesses for receiving a spider and a punch retainer and also has a die retainer attached thereto. The lubricant recovery system collects lubricant which leaks from the press machine during normal operation, filters such lubricant, and returns it to the lubricating system of the press machine for re-use. The interchangeable alignment numbers are of a standardized dimension whereby when received in a receptacle on the frame of the press machine, no machining to the alignment members is required because expendable spacers of a predetermined thickness are used.

Abstract: An automatic lubricating device for a cutting head of a cutting machine. The lubricating device is assembled within the cutting head and includes a pressure cylinder for forcing lubricating oil through a passage to a sump from which the lubricating oil is forced through a jet onto the cutter device mechanism. The lubricating device can be operated just prior to cutting or just after a cutting procedure with the cutting blade in an up or a down position.

Abstract: Method and apparatus are disclosed for removing solid material from a workpiece by using a high velocity stream of ice which is caused to impinge on the workpiece. A working liquid, such as water, is supplied at high pressure to a discharge nozzle with an orifice for forming the needle-like stream. The water is cooled before it reaches the nozzle to a temperature below its freezing point so that at least some of the stream is transformed to ice. Optionally, the stream is cooled after it is emitted from the orifice by flowing an envelope of cryogenic gas around the emitted stream.

Abstract: A punching apparatus used for high speed punching of holes in a workpiece, such as a ceramic green sheet, for use as a printed-circuit board. Upper and lower die blocks, stationary relative to each other, are provided, with punch pins fixed in two dimensions by multiple guides. A fluid passage is provided within the lower die block for providing gaseous lubrication and cleaning of the punch pin while in operation.

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: The invention is directed to a motor-driven chain saw having a drive motor which drives a saw chain via a sprocket with the saw chain running around the periphery of the cutter bar in a guide groove formed in this periphery. A brake device is provided to bring the saw chain to standstill which is actuated by a brake lever. In addition, the drive motor continuously drives a lubricating-oil pump which is mounted in a feed line between the supply tank and a outlet opening of the guide groove. The supply of lubricating oil is interrupted when the saw chain is brought to standstill. This is achieved by providing a blocking valve in the feed line which is closed during idle operation of the drive motor and is opened during load operation of the drive motor.

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: A saw guide system having a high pressure gas lubricated bearing surface, an elastic bearing block support, a contoured bearing surface, and sonic regulated flow. The velocity of the gas gradually increases as it traverses the bearing surface. At the exterior edge of the bearing surface, where the gas exits, the velocity of the flow is Mach one, sonic velocity.

Abstract: Provided is a process for producing pellets which comprises introducing strands between two upper and lower feed rolls using a belt conveyor slanted down forward with a press roll mounted thereon, then introducing the strands to a support having a fixed blade on the head thereof and cutting the strands with a rotary blade while spraying a liquid onto the strands from above the support.This process can give pellets having no obliquely cut surface and having a uniform cut length.

Abstract: A fluid spraying saw bar, and a chain sawing apparatus, such as a tree harvester, having such a saw bar are provided for selectively applying a predetermined fluid pattern of urea on a tree stump during felling, and of paint on a log end during bucking. A bar member supports an endless saw chain and has an elongate chamber therein to receive pressurized fluid from a harvester reservoir. Plural fluid emitting holes extend from the chamber to at least one side surface of the bar member. A tubular or a dual valve plate flow controller is slidably received in the chamber operatively engaged by a harvester actuator to control flow through the fluid emitting holes. For a rot-preventing urea spray, the pattern is adjusted for logs of varying diameter. For a marking spray, a striping spray pattern is selected in response to a harvester computer generated signal to indicate log length, diameter, mill designators, and the like.

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: An adjustable angular shearing device (10) in accordance with the invention is adapted to transversely shear sheet material from a continuous strip in a punch press. The device (10) has an upper punch (24) which coacts wtih a lower die (28) to shear sheet material passing between them. The punch (24) comprises a pair of members (32, 34) which coact with a pair of corresponding members (74, 76) on a lower die (28). The members rotate about aligned posts (26, 30) at the vertex of an angle. The rotation of the members about each respective post is selectively adjustable. A chevron-shaped part can be stamped from a continuous strip of sheet material by two successive stamps of the punch press.

Abstract: An apparatus for providing longitudinal, laterally spaced slits in a continuously moving sheet or web of corrugated paperboard or the like includes a plurality of upper tool heads each supporting a thin, circular rotary slitting blade. The blades are coaxially mounted and driven by a common drive shaft and each blade-carrying tool head is independently positionable across the width of the paperboard sheet. Each slitting assembly includes a lower tool head or counterhead carrying a roller assembly which supports the underside of the moving board and provides a firm surface to support the board against the upper rotary slitting blade. The roller assembly includes a circumferential radially extending slot in its outer surface through which an edge portion of the upper cutting blade travels with the sheet firmly supported by the roller surfaces on each side of the slot.

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: 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 scroll saw has a base including integral walls forming a gear casing, a frame assembly mounted on the base, and lower and upper oscillating arm members pivotally mounted on the frame assembly. The gear casing houses gear and counterweight assemblies for driving and counterbalancing the oscillating motion of the lower and upper arm members. A saw blade is removably mounted between corresponding free ends of the lower and upper reciprocating arm members. The ends of the saw blade are prepositioned between a pair of blade holders, and the entire assembly of blade and blade holders is then attached as a unit to the free ends of the arm members. Blade tension is adjusted by means of a tensioning system that indexes blade tension to rotation of a tension knob. The saw further includes a nonflexible tube which functions as a combination airblaster and blade guard for directing an air stream into a cutting area to remove sawdust and other debris while preventing accidental contact with the saw blade.

Abstract: A method and apparatus for supporting sheet material such as cloth during operations thereon such as cutting wherein a pattern is placed on a supporting surface provided with a plurality of pins extending through apertures in the surface, the pins are lowered below the surface for removal of the pattern whereupon sheet material is placed on the surface, typically a plurality of plies being layed up in a stack, and simultaneously the pins are moved through the sheet material to maintain alignment and matching of the plies in the stack. The pattern then is placed on the sheet material in a position determined by the location of the pins, and the material is shaped such as by cutting. A plurality of separate pin holding and supporting devices of narrow width are spaced lengthwise along the apparatus and independently movable lengthwise toward and away from each other. Pins of adjacent rows can be closely spaced together thereby achieving a grid pattern wherein the pins are relatively closely spaced.

Abstract: A guide bar for a saw chain mounted to the boom of a tree harvester. As typical for such guide bars, oilhole holes are provided to receive oil for channeling of the oil to the edge grooves wherein the saw chain is entrained. Not typical of such guide bars is the provision of a pattern of inter-connecting oil channels in the bar for channeling oil to various positions on the bar edge including the bar edges adjacent each oil hole and at the bar nose. C-shaped valves in the oil holes are manually adjusted to control the flow of oil to the various positions.

Abstract: In accordance with the present invention, a punching assembly is provided. The punch assembly preferably includes a casing or sleeve in which a punch is mounted for longitudinal sliding movement. In accordance with one feature of the invention, a stripper plate is provided adjacent the operating end of the punch. The stripper plate includes a central opening for the punch that surrounds and guides its cutting end. A retaining means is preferably provided to cover a portion of the stripper plate at times to keep the stripper within the assembly until it is to be released.

Abstract: Quarried building materials, e.g., slate, marble and stone, are waterproofed and structurally shaped by sawing such quarried material while concomitantly introducing water into the cutting zone, and wherein the process water contains an effective waterproofing amount of a silicone emulsion.

Abstract: An apparatus for cutting a laminated sheet material includes a pedestal for supporting on a support surface thereof a laminate of a sheet material at least the upper and lower surfaces of which are covered with an air-impermeable sheet. Arranged on the support surface is a suction pipe a side face of which is provided with a suction port for attracting a side face of the laminate. Connected to the suction pipe is a suction pipe drive unit for reciprocating the suction pipe in one direction. Coupled to a cutter head arranged above the laminate is a cutter head drive unit for reciprocating the cutter head in a direction orthogonal to the direction in which the suction pipe is reciprocated. A guide groove opposing the path along which the cutter head is reciprocated is provided in the support surface of the pedestal, and a number of closure plates driven in synchronization with the cutter head are fitted in the guide groove, the closure plates being interconnected.

Abstract: A cutting apparatus for cutting a layer from a substrate length of rubber material such as used conveyor belting comprises a cutting station having a table with an upper surface to receive the material and a knife to cut the material. The cutting apparatus further comprises conveying rollers to convey the substrate length of material along the upper surface of the table and through the knife. The knife has a knife edge disposed in a plane generally parallel to and in spaced relation with the upper surface of the table to confront the material for cutting. The knife edge is arranged to extend in a transverse direction to the intended direction of passage of the material through the knife and is adapted to reciprocate in the transverse direction within the plane in conjunction with the conveyance of material through the knife to successively cut the layer from the material.

Abstract: A punch press having a die formed with a diehole and mounted on a die holder and a punch set provided with a punch mounted on a punch holder for performing a punching process on a workpiece in cooperation with the die. The punch set is formed with a fluid discharge orifice for discharging a fluid into the diehole, and the punch is formed with a communication orifice communicating with the fluid discharge orifice. A ram for striking the punch is formed with a fluid supply orifice for freely communicating with the communicating orifice. A connecting pipe connects the fluid supply orifice with a fluid source; a shut-off valve is provided for opening or shutting of the connecting pipe, with a stroke position detector for detecting the stroke of the ram. A shut-off valve control is provided for controlling the opening or shutting of the shut-off valve according to the values detected by the stroke position detector.

Abstract: A tile saw having a liquid reservoir and a rotary saw blade protruding through a saw table, the rotary blade picking up liquid from said liquid reservoir as it rotates, the liquid being used to cool the rotary blade as it cuts, comprising a means for maintaining the circulation of liquid from the liquid reservoir to the rotary blade as it cuts and back to the reservoir with no significant splashing or loss of liquid, and means for cutting past the rotary blade without interfering with the maintained circulation of liquid which cools the rotary blade. The rotary blade protrudes through a thin slit in the saw table so that a tile is provided with support as it is cut, whereby precision cuts can be made to the tile.

Abstract: A saw guide is provided with a mixture of air, oil and water to lubricate and cool the saw and guide. The lubricant mixture is developed by a liquids mixer constructed around an oxyacetylene cutting tip. Greatly reduced water consumption is observed resulting in a drier working environment and reducing the amount of clean-up required.

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: 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: The invention is directed to a saw chain for a motor-driven chain saw equipped with a guide bar and for which lubricating oil is continuously supplied during operation. The oil reaches the guide groove of the guide bar and is directed to the pivotal joints of the saw chain. The oil is taken up by the foot portions of the center links of the saw chain which engage the guide groove. Groove-like channels are provided in a side face of these foot portions via which the lubricating oil is conducted to the pivotal joints. Lubricant pockets are provided in the foot portions of the center links of the saw chain which are supplementary to the channels so that the center links can take along a greater quantity of lubricant. This lubricant then reaches the pivotal joints through the channels especially at the forward end of the guide bar where the saw chain changes direction.

Abstract: In a rotary brush cutter with a rotating shaft, a plurality of cutting blades extending substantially radially from the shaft and a drive for rotating the shaft, herbicide is fed adjacent a cutting portion of the blades while the blades are rotated whereby the herbicide is applied to brush being cut.

Abstract: An apparatus for cutting a laminated sheet material includes a pedestal for supporting on a support surface thereof a laminate of a sheet material at least the upper and lower surfaces of which are covered with an air-impermeable sheet. Arranged on the support surface is a suction pipe a side face of which is provided with a suction port for attracting a side face of the laminate. Connected to the suction pipe is a suction pipe drive unit for reciprocating the suction pipe in one direction. Coupled to a cutter head arranged above the laminate is a cutter head drive unit for reciprocating the cutter head in a direction orthogonal to the direction in which the suction pipe is reciprocated. A guide groove opposing the path along which the cutter head is reciprocated is provided in the support surface of the pedestal, and a number of closure plates driven in synchronization with the cutter head are fitted in the guide groove, the closure plates being interconnected.

Abstract: Band saw apparatus for cutting multiple workpieces simultaneously having more than two blade guide assemblies formed for sliding engagement with a continuous loop saw blade to define at least two saw blade cutting stretches. A vise assembly is also provided to separate multiple workpieces in at least two spaced workpiece retaining channels generally aligned with the saw blade cutting stretches. The band saw apparatus is particularly suitable for cutting multiple workpieces having a relatively small diameter. An improved method for cutting multiple workpieces simultaneously is also provided.

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 power tool has a housing, a blade support reciprocal in the housing, a blade carried on the support for joint reciprocation therewith and projecting from the housing at a work area, and a drive in the housing for reciprocating the support and blade. A bulb generally fixedly mounted in the housing adjacent the support, elastically compressible from a large volume to a small volume, and having an outlet is operatively engageable with an actuator formation between the blade support and the bulb so as to compress the bulb each time the support reciprocates and thereby emit a gust of air from the bulb outlet. A nozzle or conduit is mounted on the outlet and open at the work area for directing the gusts of air at the area and thereby blowing chips and dust created by the blade from the area with each reciprocation of the blade.

Abstract: A saw guide system having a mechanism for applying an oil film to individual saw blades includes saw guide blocks having either common or separate distribution networks for oil and water. The saw guide block has an open chamber extending through the guide block for receiving and distributing the oil and water from the distribution networks onto the saw blades. The use of a lubricating film greatly reduces the accumulation of heat in the sawing system and allows operation of the sawing system without the introduction of cooling water.

Abstract: An improved coolant manifold assembly is provided for supplying liquid coolant to the working surface of a cutting or grinding wheel in the course of a machine tool cutting or grinding operation. The coolant manifold assembly is adjustably mounted by a support frame onto a machine housing and includes a manifold unit having a coolant discharge nozzle disposed in relatively close association with a rotatable cutting wheel or wheels or the like. The manifold unit is supported from the frame by a first slide member which is adjustable to select the position of the discharge nozzle relative to the cutting wheel. In addition, the manifold unit supports an absorbent pad wetted with coolant and protruding into direct contact with the cutting wheel at a position generally adjacent the coolant discharge nozzle. A second slide member carries the absorbent pad for adjustment of pad position relative to the coolant discharge nozzle.

Abstract: An agricultural marking device to disperse elongate strips of rolled paper-web material. A vertically orientated, cylindrical supply hopper has a securable lid. The lower portion of the hopper terminates in a conical transition directing web material in the hopper to an output channel. Drive rollers positioned adjacent to the output channel remove the web material from the supply hopper and deliver it through a downstream opening where a spray head is positioned. The spray head controllably directs a liquid spray onto the web material to separate it in the wetted region or dampen it to weight it. The device is secured to a mounting structure for mounting onto preselected portions of a propelling vehicle or an associated material dispensing device to thereby indicate a boundary of a portion of a traversed field by the web material deposited thereon.

Abstract: A die assembly for mounting in a die press operates to punch a row of holes in a stack of paper sheets in response to a single press stroke. The die assembly comprises a stationary lower die block having a row of die holes therethrough, one or more lubricated stationary guide plates each having a row of guide holes therethrough and located above and spaced from the die block by a separator plate so as to define a stack-receiving slot, a reciprocably movable punch retainer assembly located above the guide plate and a row of elongated, downwardly-depending punches connected at their head ends to the punch retainer assembly which extend through and slidably engage the guide holes. When the press closes, the cutting ends of the punches move through the stack-receiving slot and through a stack of sheets therein into sliding engagement with the die holes. When the press opens, the punches are withdrawn clear of the stack-receiving slot.

Abstract: Slicing apparatus particularly adapted for slicing raw and cooked meat includes a feed tube through which chunks of raw or cooked meat are fed under pressure against an immediately adjacent cutter which includes at least one cutting edge and forms a stop for the material in the feed tube in substantially all positions of the cutter to prevent free flow of material from the tube.The process for producing a sliced meat product includes the steps of partially cooking chunks of meat so that outside portions of the chunks reach temperatures above the temperature at which the meat is considered fully cooked while inside portions remain not fully cooked, slicing the meat chunks and adding to the slices sauce which is at a temperature above the temperature at which the meat is considered fully cooked, allowing the temperature of the meat and sauce to equalize at least to the extent that all meat reaches the temperature at which it is considered fully cooked, and portioning and packaging the product.

Abstract: An apparatus and improved method for transversely cutting strips of deformable material with a rotating cutting blade which is moved generally transversely across the strip at a predetermined rake angle and bevel angle. A vacuum applied to certain chambers of a platen draws the strip firmly against a supporting structure at two locations on opposite sides of a cutting line during the cut cycle. A lubricant is sprayed through nozzles onto the blade as it cuts the strip and blow-off nozzles remove excess lubricant during the cut and return cycles of the blade to prevent contamination of the cut strip edges. A release bar assists in disengaging the strip from the platen after the strip is cut. Grippers remove the cut strip and then an input conveyor advances the remaining strip toward the cutting line where the grippers pull the strip forward to a predetermined position for the next cut cycle.

Abstract: The present invention relates to a saw blade holder for precision saws. Precision saws are designed to hold a saw blade between two parallel arms. Upper and lower blade holders mount the saw blade on the arms. The present invention relates to the lower blade holder and comprises two clamping elements which are designed to threadably engage and fit inside of a slotted tubular member. The blade passes through the slot in the tubular member and is clamped between the two clamping elements. The tubular member is comprised of a finely divided metal which has been shaped into the desired configuration utilizing a lubricant which is embedded throughout the thickness of the tubular sleeve. This lubricant is released over the lifetime of the tubular member so as to continually lubricate the wear points thus reducing wear and the adverse effects associated therewith.

Abstract: A container for lubricating fluid mounted on the body of a jigsaw, with a flexible line leading from the container to a nozzle mounted on the saw blade and reciprocable therewith. The container is sealed and the fluid is forced out through a capillary passage, by reciprocation, and when it is stationary, the fluid is held in by capillary action. The fluid is forced out in the form of a spray onto the cutting blade and workpiece.

Abstract: The invention relates to the preparation of a stack of knitted fabric panels for subsequent cutting. It consists in spreading the knitted panels under extension over the needles of a needle table, covering the formed stack over with a sheet of material impervious to air, creating a reduced pressure inside the stack by sucking in the air contained between the table and the sheet, retracting the needles from the stack and proceeding to the cutting while keeping up the suction throughout the cutting operation.The needle table comprises a table top perforated with holes, a movable support on which are fixed the needles and a tight box containing the movable support and equipped with suction means.

Abstract: A method and apparatus is disclosed for cutting a sculptured pattern in carpet pile. The apparatus has a carpet clipping head carried by a carriage means that can move the clipping head horizontally, vertically and rotationally. Instructions from memory associated with a computer cause the carriage to move the carpet clipper along a predetermined route to cut the sculptured pattern in the carpet. The apparatus also senses the temperature of the clipping head and shuts off the apparatus if overheating occurs. A vacuum mechanism is provided to remove carpet cuttings during operation. The apparatus also dispenses lubricating fluid to the clipper head.

Abstract: The invention provides work piece support apparatus for supporting resilient sheet material during a machining operation, e.g., routing, in which the support apparatus includes hydrostatic clamping means comprising perforated support pads positioned each side of the resilient material and connected to a fluid supply. By this arrangement a fluid layer under relatively high pressure is interposed between each pad and the adjacent region of sheet material which is thus fluid pressure supported in the immediate vicinity of the routing tool throughout the machining process. The invention beneficially provides a routing machine including the work piece support apparatus in which the work piece is positioned in a generally vertical plane and the routing tool is mounted about a generally horizontal axis.

Abstract: A sawing method involving in one direction continuously driven saw blades (1, 2) or saw wheels, according to which two saw blades (1, 2) or saw wheels are arranged in an adjacent position to each other, with associated saw teeths extending in an opposed relationship to each other. The saw blades (1, 2) or the saw wheels are thereafter caused to perform a continuous movement in opposite directions to each other in the operative direction for each saw blade (1, 2) or saw wheel, whereby same in a common and co-acting operation take up a saw cut in a workpiece. In order to maintain the saw teeths of the saw blades (1, 2) or the saw wheels separated from each other during a sawing operation, a pneumatical or hydraulical medium under pressure is advantageously supplied against the adjacently located surfaces of the saw blades (1, 2) or the saw wheels during the sawing operation.

Abstract: There is provided a laminated glass cutter. The cutter includes a rectangular body frame and a pair of opposed cutting members associated therewith. In use the laminated glass cutter may cut a laminated sheet into two adjacent separate components upon a single pass of the body over the sheet.

Abstract: A saw guide is provided with cooling and lubricating capability which guides a saw during cutting of wood and other materials and includes a mixing capability so that two coolants and/or lubricants can be mixed at the saw guide just prior to cooling or lubrication of a saw blade to reduce the likelihood of separation of insoluble combinations of coolants and/or lubricants prior to application to the saw blade.