Abstract: Apparatus for processing an elongate web of sheets is provided, which includes structure for continuously feeding successive sheets of the web in a path of travel, structure for successively cutting the successive sheets from the web, and structure for successively deflecting the successive sheets out of the path of travel and into cutting relationship with the cutting structure.

Abstract: A post-cutting arrangement for sewing loops formed by a band portion has a mandrel provided for opening and spreading a loop, and having a gap for receiving free band ends, and at least one cutter arranged in the gap and movable relative to the band ends.

Abstract: A table-top masonry saw comprising a high-speed rotary circular blade is provided with a dust removal kit for withdrawing masonry dust created by the circular blade from the region of the saw to a vacuum source. The kit includes a curtain draped over a frame member at an operator's side of the saw blade and a funnel disposed to the rear of the saw blade opposite the operator's side. The funnel includes an exhaust duct which is connected to a vacuum source.

Abstract: A concrete saw mounted on a wheeled housing for making a substantially linear cut in the surface of a masonry slab is provided with a dust removal apparatus. The dust removal apparatus includes a blade guard partially surrounding the circular blade mounted for rotation on the side of the wheeled housing and a pivotally mounted funnel mounted on the blade guard. The funnel is telescopically mounted on a portion of the blade guard and extends between the blade guard and the slab being cut. A bottom edge of the funnel is provided with a rounded bearing surface so that it rides on the surface of the slab. A vacuum machine is connected to an exhaust duct of the funnel so that concrete dust generated during the making of a cut is continuously exhausted through the funnel and a flexible hose to the vacuum machine as a cut is being made.

Abstract: A power table tool having an outlet port positioned relative to the cutting member of the tool so that the dust and other debris generated by the cutting member can be removed from the interior of the tool assembly through an exhaust system. A guard member is provided for the outlet port to prevent insertion of extraneous matter into the interior of the tool as well as to protect the outlet from clogging as a result of the removal of the sawdust and other debris from the interior. The guard member is structured in a manner such that the area of the openings presented in the guard member is greater than about 100% of the area of the outlet port itself. The port is specifically aligned relative to the cutting member in order to enhance the removal of the sawdust and debris from the interior of the tool.

Abstract: Apparatus for removing and disposing of scrap paper chips impaled on a roller rotating away from the cutting region of a rotary cutter has a pneumatic baffle plate located a distance of 3/8 to 11/2 inches away from the roller, defining a narrow flow channel through which an air stream is sucked by a centrifugal fan. The baffle is spaced apart from the roller a distance such as to impart a high velocity to the air stream due to aerodynamic effects, causing chips to be forcibly removed from the roller when the chips reach an area above the flow channel. The baffle along with a chute that supports it and duct leading to the fan provide an enclosed channel for movement of the chips. The baffle edge adjacent the roller is provided with a curved surface to provide smooth flow of the air stream. The output of the fan has an air duct connected for conveying the chips to disposal.

Abstract: The present invention relates to an apparatus which is able to form a desired number of wells in gelatinous media, as for example agar-based media contained in dishes or plates such as the normal microbiological culture dishes or plates.

Abstract: An improved device for cutting a single or multiple-layer continuous web is equipped with a closed-loop, fan-driven air system to "push" air onto the leading edge of the continuous web and "pull" air from about the knife edges to capture the waste material produced by the removal of blank portions. Chambers in the knife roll assembly direct positive air pressure continually to the leading edge for reliably guiding the web into subsequent machinery. Additional chambers direct suction to the waste material at the cutting operation to restrain the waste material within the knife roll assembly for most of the rotation of the knife assembly and to transport waste material to a disposal system including a cowl, which is maintained at a substantially greater suction.

Abstract: In a printed web strip cutting machine, the cutting cylinder is divided diagonally by a formed septum into two isolated chambers. The cylinder is mounted on hollow shafts connected to an exhaust system. Each hollow shaft communicates with only one of the two chambers to draw a current of air into the chamber between the spaced cutting knives. The web support beneath the cylinder has vents to provide air jets to lift the severed strip into the air current between the knives.

Abstract: To trim a plurality of printed products, which may have different thicknesses, first and second cutting assemblies are provided, each cutting assembly having a cutting knife (98, 59) and a cutting counter element (115, 65). The printed products are held in receivers formed of a fixed jaw and a movable jaw, resiliently clamping the printed products between the jaws, the knives being moved across the printed products and against the counter elements. The printed prroducts are supplied to the first cutting assembly by a pair of toothed or ribbed belt (20) from a storage cassette (1). The length dimension to be cut is determined by a stop rail (39) and the width dimension is determined by the spacing of two lateral knives of the second cutting assembly. A transfer apparatus transfers the printed products from the first to the second cutting assembly, from which they can then be removed. The knives are moved in a guide way formed by guide rails on which sliders operate.

Abstract: The invention relates to a knife roller with at least one film knife which s securable on a multi-part roller body, which comprises suction openings around its circumference, and connected thereto, suction channels extending in the lengthwise direction. The gist of the invention is that:a) suction openings are provided along several suction hole rows arranged next to one another in the circumferential direction,b) one suction channel is arranged to correspond with each suction hole row, andc) at least one suction air control channel and at least one adjustable suction air control disk are provided,d) by means of which the suction air control channel is selectively connectable with different suction channels, suction hole rows, and their suction openings.

Abstract: Sheet cutting apparatus for severing a rapidly-moving web, such as printed paper, into cut sheets in two stages. In the first stage, spaced cuts are made along a transverse cutting line of the web. The web is trained between belts which support the cut portions of the web, and the uncut portions of the web are severed to separate sheets. The sheets are conveyed out of the cutting station and into further apparatus. Preferably, the belts for supporting the web during the second cutting operation are trained around the knife and anvil rolls which make the cuts. The purpose of the belts is to prevent the leading edge of the web or a cut sheet from being projected forward of its support, thus tending to become dog-eared or misfed. The cuts made at the first and second cutting stations can be arranged in various patterns to remedy mis-timing of the respective cutting stations.

Abstract: The present invention relates to a method and apparatus for cutting mat board, and more specifically for cutting apertures including non-linear boundaries in mat board. The preferred embodiment of the apparatus of the present invention includes an automatically controlled rotating cutting tool, preferably with a V-bit for cutting apertures having bevelled boundaries according to a predetermined pattern. The preferred embodiment of the method of the present invention includes stacking first and second mat boards and cutting through said first board into said second, removing said first board into said second, removing said first board, and cutting the same aperture in the same location in said second mat board which has been stacked on a third, uncut mat board.

Abstract: In an automatic sawmill, logs are first sawn horizontally into pieces that are respectively deposited flat side down on a bed plate and conveyed through multiple, close spaced horizontal bandsaws located above the bed plate. Sawn cants are positioned by clamps to have their waney edges removed by a flying saw after clamp retraction.

Abstract: Disclosed is a process for accumulating yarn from a continuous supply source to waste and apparatus for cutting the yarn initially and upon preparation for threading the yarn into a continuous process.

Abstract: Disclosed is a saw dust collector which can be selectively attached to or removed from the fixed blade guard of a portable circular saw which has front and rear vacuum apertures located near the front and rear blade guard openings which are in fluid communication with a single vacuum source.

Abstract: A web of paper, cardboard, foil or textile material is pulled against and between two rotary knives which sever the web longitudinally and form a slot as well as dust. Such dust is removed by a pneumatic mechanism having one or more nozzles which discharge one or more streams of compressed ionized air against the upper side of the web in the region of the slot, and a suction chamber disposed beneath the path for the web, extending across the slot beneath the nozzle or nozzles, and having one or more suction ports which enable the chamber to collect the particles of dust. The port or ports further enable the chamber to collect those fragments of the web which adhere to the separated sections of the web in the region of the slot between such sections.

Abstract: There is provided a sweeper for cleaning the support surface of a machine for cutting sheet material and having a vacuum chamber disposed below said support surface to hold down the sheet material during cutting, and a carriage assembly, supported above said support surface for longitudinal and transverse movement relative to said support surface. The sweeper has a nozzle mounted on said carriage assembly and is adaptable for contacting the support surface, and includes a conduit in fluid communication to a vacuum generator. A filter is disposed in a housing intermediate said nozzle and the vacuum generator, and a valve is provided for by-passing vacuum to the vacuum chamber and opening vacuum to said sweeper for cleaning said support surface.

Abstract: The running web of tipping paper in a filter tipping machine of the tobacco processing industry is repeatedly severed by successive knives on a rotary carrier while the leader of the web is attracted to the peripheral surface of a counterknife. The peripheral surface of the counterknife is provided with axially parallel grooves flanked by internal surfaces one of which cooperates with the cutting edge of a knife to progressively sever the web in a direction from one marginal portion toward the other marginal portion. The cutting edges of the knives are inclined with reference to the axis of rotation of the carrier in the radial direction as well as in the circumferential direction of the carrier. A rotary eccentric is provided to shorten and lengthen the path of movement of the web toward the counterknife in order to establish gaps between successively separated uniting bands and the leader of the web.

Abstract: To direct the leading edge of a cut web element, cut by knives (3) on a cutter cylinder pair (1, 2), to an inlet region of transport belts (6, 7) running over deflection rollers (8, 9), air jet nozzles (10, 11) direct an air cushion or air pillow into the nip between the cylinders (1, 2). The cylinders are formed with a plurality of circumferential grooves (18, 19) or a spiral groove (21), so that the air can pass along the nip and continue to guide the cut leading edge of the web. Suction nozzles 22, 23 enhance the air cushion effect applied to both sides of the web. If the web is a multi-ply structure, the air cushion or air pillow additionally contributes to adhesion of the various plies against each other.

Abstract: An apparatus and process for mar free handling of sheet steel pieces and blanks die cut therefrom in a press, in which load and unload trolleys are used with vacuum pickup and transport of the sheet steel piece and blanks from respective locations at the front and rear of the press. A pusher slides the sheet steel pieces off a low friction platform at the front of the press and onto a non scuffing but smooth and soft bed liner, and the cut blank is raised with the die by an array of vacuum cups each partially recessed into the die board. A table is extendible from the rear of the press to be positioned beneath the die and receive the blank thereafter released from the die cavity. The table is retracted to allow pick-up therefrom by the unload trolley.

Abstract: A machine for cutting and stacking into layers sheets of a pre-established size from a plurality of strips of wood obtained from a piece of veneer. The pieces of veneer are fed into a cutter by means of a first conveyor belt actuated by a control means which detects flaws in the wood to cut out transverse strips containing the flaws that are then automatically discarded as they come off the cutter. Strips free from defects are then sent on by a second conveyor belt to a deflector which distributes the strips onto two conveyor belts with intermittent movement so as to arrange the strips into compact adjacent groups to form a sheet of desired length. The plurality of adjacent strips forming a sheet are then sent to stackers to form layers of the sheets.

Abstract: A web-slitting machine has its blades mounted on cylinders shifted along a linear guide extending the full width of the web to be slit. The sliders carry tubes whose suction nozzles are disposed in the regions of the blades and which terminate in connecting heads having boat-shaped projections received between elastomeric sealing lips closing a slit of a suction box extending along the guide.

Abstract: The present invention relates to a device for cutting photographic film into individual negatives and placing the cut negatives into envelopes. The invention utilizes a permeable conveyor and vacuum fan arrangement to transport the negatives after they are severed by the cutting mechanism. A pair of opposed fan assemblies located on either side of continuous feed envelopes serve to open an individual envelope. The opened envelope is located in close proximity to the conveyor. In this configuration, an individual negative, retained by suction against the permeable conveyor, can be delivered to the opened envelope extending off the edge of the conveyor track and entering the open envelope. A burst of air may be used to ensure the individual negative's placement into the envelope. A computer coordinates and controls various functions of operations, including transportation movement of the negative and envelopes and printing.

Abstract: A packing apparatus has an input device which includes an advancing device for forwarding a wrapper sheet of indefinite length in a feeding direction along a conveying path; a processing device for performing an operation on the wrapper sheet; a cutting device severing the wrapper sheet transversely to the feeding direction for consecutively forming wrapper sheet lengths; and a bag-shaping device arranged downstream of the input device as viewed in the feeding direction, for receiving wrapper sheet lengths from the input device. The input device comprises a monitoring device for sensing the wrapper sheet and for generating a signal upon detecting a defect in the wrapper sheet and a deflecting device arranged downstream of the monitoring device and the cutting device for deflecting a defective wrapper sheet, in response to the signal, out of the conveying path into a waste position.

Abstract: This invention discloses a pneumatic cutter for concrete and the like in which: a suction pipe is provided on a circular arc-shaped case covering the upper half of a disk cutter member driven by air motor incorporated in a body, and a venturi section and an exhaust cylinder are provided in connection to the suction pipe in a row; a valve and a branched pipe are provided in connection to an air hose coupling cylinder in order, and in which a larger pipe of the branched pipe is connected to the air motor while a smaller pipe is connected to the venturi section; and an exhaust port of the air motor is provided on the body, and an exhaust nozzle which is provided on a surface where the circular arc-shaped case faces to the disk cutter member and the exhaust nozzle are connected to each other through a communicating passage.

Abstract: An apparatus for cutting soft sheetlike material, such as a fabric material, which is subject to elongation due to effect of tensile force. The apparatus has a driving device for supplying a layered severable material in an intermittent step-like manner from an upper position to a lower position. A cutting device cooperates with the layered severable material, when in a stationary vertically-suspended condition, for forming cutting lines of basic configuration therein along the elongate direction thereof, with such cutting lines being repeatedly formed following each advancing step of the material to create cutting lines which extend substantially continuously along the severable material. Devices are also provided for removing non-wanted portions of the severable material so as to leave only the essential portion. The severable material includes, superimposed sheets of flexible soft material and thin flexible backing, which sheets are separated and independently wound following the cutting step.

Abstract: An apparatus for cutting a cylindrical web made of laminated paper into cylindrical bodies from which containers for beverages are formed including a pair of cutting blades provided with suction ports so that dust such as paper powder, etc. generated when the web is cut by the blades is sucked out through the suction ports connected to a suction device.

Abstract: A joint planer has a chute for guiding chips resulting from a planing operation to a dust collector guide. The chute is attached to a vertically-movable table near its work surface and extends to the upper edge of the dust collector guide, which is below the planer cutting barrel. The lower end of the chute slides up and down against the edge of the dust collector guide with movement of the vertical table, thereby maintaining a closed path from the surface to the dust collector guide.

Abstract: Apparatus for cutting labels from a ribbon on which the labels are printed. The ribbon is fed into the apparatus along a vertical plane, for instance. There are vertically spaced apart knives adjacent the ribbon for cutting the upper and lower contours of the labels from the ribbon. The knives are caused to pivot toward the ribbon and to rise and fall under the influence of a cam that is shaped correspondingly with the desired contours. After the upper and lower contours are formed the ribbon is caused to change direction around a roller while at the same time the trim margin is deflected in another direction and drawn away. The ribbon, with labels still connected endwise is fed over a vacuum cylinder which has cutters at its periphery for separating the labels from a waste portion between them. The labels are removed from the vacuum cylinder and led to a label applying machine, as an example.

Abstract: A method and apparatus particularly suited for cutting continuously moving thermoplastic film such as linear low density polyethylene and includes a stationary anvil, preferably a roller of tool steel and a tungsten carbide die mounted for rotation along a circular arc intersecting the anvil. In an embodiment for punching holes in the film, the apparatus includes a saddle shaped hollow tungsten carbide die projecting slightly above the cylindrical surface of a roll passing under a spring biased tool steel roller for cutting a semicircular hole in a continuously moving continuous plastic film web for the manufacturer draw tape bags. A vacuum is supplied to the center of the die for removing the segment of plastic film cut out by the apparatus.

Abstract: A transverse cutting device for cutting into lengths a strip traveling continuously along a predetermined path, which device presents a drum for feeding and guiding the strip through a cutting station; and a cutting unit for successively cutting the strip transversely; at least one cutting element on the cutting unit being moved along an annular path lying in a plane intersecting the path of the strip in the cutting station, and along a given line forming an adjustable angle with a transversal intersecting the path of the strip; and the roller presenting peripheral grooves for longitudinally stretching the strip in the cutting station.

Abstract: An apparatus for cutting soft sheetlike material, such as a fabric material, which is subject to elongation due to effect of tensile force. The apparatus has a driving device for supplying a layered severable material in an intermittent step-like manner from an upper position to a lower position. A cutting device cooperates with the layered severable material, when in a stationary vertically-suspended condition, for forming cutting lines of basic configuration therein along the elongate direction thereof, with such cutting lines being repeatedly formed following each advancing step of the material to create cutting lines which extend substantially continuously along the severable material. Devices are also provided for removing unwanted portions of the severable material so as to leave only an essential portion. The severable material includes superimposed sheets of flexible soft material and thin flexible backing, which sheets are separated and independently wound following the cutting step.

Abstract: The tool assembly is intended for woodworking machines having an integral spindle drive with electric motor and rotary tool holder combined in a one-piece unit; use is made of a tubular sleeve to accommodate the spindle drive, which is mounted coaxially at one end with the tool and holder projecting, and supported by a set of radial webs alternated with a similar number of openings and bridging a gap created between the motor and the sleeve, given that the transverse dimensions of the spindle unit are less than the bore of the sleeve. The sleeve connects at the top end with the duct of an extractor system and is carried slidably in relative supports, capable of controlled traversing movement along its own longitudinal axis.

Abstract: A process and apparatus for making a repetitive arc cut in a continuous manner in a continuous supply of sheeting possessing edges, which involves providing a moving sheeting across a cutting area and passing through the area an arc-directed omnidirectional cutting means at and across an edge, in the general direction of the sheeting, to puncture a portion of the moving sheeting, maintaining the arc directed velocity of the omnidirectional cutting device at a rate greater than that of the directional velocity of the sheeting such that the puncture is enlarged to a lineal cut. The most favorable application of the invention involves the use of waterjet cutting to cut holes, especially primarily round holes, in multi-wall plastic constructions.

Abstract: A saw chip collector for use in cutting slots in a work, comprises an enclosure surrounding the saw blade except for an opening at the cutting position, a floating block mounted on the enclosure at the blade cutting position and spring biased against the work for sealing the top of the enclosure against the bottom of the work, an opening in the enclosure at the hub of the saw blade for drawing air into the enclosure, and an output port in the enclosure for flushing out the sawn chips.

Abstract: An apparatus for removing scrap around the die cut blanks in a web comprising a pair of rolls through which the web is passed, one roll carrying flexible pointed fingers arranged substantially parallel thereto for impaling the scrap pieces and the other roll carrying resilient material opposed said flexible pointed fingers to contact the scrap pieces so they may be impaled by the pointed fingers. Scrap pieces are impinged on the pointed fingers as the scrap pieces pass between the fingers and resilient material before the nip of the rolls and are pushed outwardly from the surface of the roll by the flexible point finger for removal by a comb, brush or vacuum means.

Abstract: A method and device are provided for separating trimming losses from a sheet having a plurality of products formed thereon with star-shaped scraps between the products. In one embodiment, the sheet is placed on a sheet supporting plate. The sheet is positioned between a blanking plate and a plurality of pushing rods fixed to a mounting plate. Each of the pushing rods has a piercing pin extending from the free end thereof for penetrating into a corresponding star-shaped scrap. The blanking plate has through holes formed therein which correspond to the pushing rods and star-shaped scraps such that the pushing rod passes through a corresponding through hole. The inner diameter of each through hole is smaller than the outer size or greatest dimension of the star-shaped scrap. When the star-shaped scrap is pushed through the through hole by the pushing rod, it deforms and passes through the through hole.

Abstract: A rotary table saw for sectioning dental models having a housing with a base portion and a working table mounted on the base portion. The working table is controllably depressible so as to be moved upward and downward with respect to the base. The motor housed in the base drives a rotary blade oriented in a vertical direction. A slit in the work table permits the blade to emerge therethrough as the work table is depressed. The vacuum outlet is placed in flow communication with the surface of the work table during depression of the work table to remove saw dust from the work table. The dental model is placed on the work table with the blade hidden beneath the work table. The work table is depressed to permit emerging of the rotary blade cutting from the underside of the dental model.

Abstract: A retractable dust control hood for a rotary table saw includes a generally hollow box member which is supported for movement between a working position directly over the saw blade and a retracted position substantially above the saw blade to permit ease of handling workpieces with respect to the saw and a saw support table surface. The hood is supported from a member disposed above the table surface by parallelogram linkage and a counterbalance mechanism including a rod extending between one set of parallelogram link members and a second set of parallelogram link members. A coil spring is disposed around the rod and acts to move the parallelogram link members relative to each other to counterbalance the weight of the hood. The hood includes a transparent window and a lamp for illuminating the interior space of the hood for ease of viewing the workpiece during operation of the saw.

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: Apparatus for adjusting the knives of a pouch form, fill, seal machine. The knives are to cut pouches from a web. The knives are mounted in a generally cylindrical cage for radial sliding movement with respect to the cage. An axially movable cone inside the cage has slots in its conical surface that receive the inner ends of the knives. A screw is provided to move the cone axially to change the radial position of the knives.

Abstract: A yarn end finding device includes a rotary cutter in the form of a drum which has a yarn end sucking holes formed in an outer peripheral surface thereof, and a movable blade having thereon a cutting edge adapted to press against and contact with the outer peripheral surface of the rotary cutter, wherein the movable blade is reciprocally moved in a direction substantially perpendicular to the direction of rotation of the rotary cutter.

Abstract: The invention relates to a cutting tool and a tool holder for cutting panels from blanks of sheet-like material. The cutting tool comprises a thin cutting plate on which is formed by etching a cutting edge having a contour corresponding to the outline of the panels to be cut out. The cutting plate also comprises a plurality of openings which are surrounded by the cutting edge. The tool holder is a metallic cylinder to be mounted on the drive shaft of a conventional panel cutting apparatus and comprises a seat for receiving the cutting plate which is retained in the seat by keys. In the cylinder are formed passageways communicating with a source of vacuum and also communicating with the openings on the cutting plate to create a zone of vacuum in the vicinity of the cutting edge.

Abstract: A cutting machine has a planar support surface for supporting a work piece and a carriage supported for movement above the planar surface. The carriage independently supports a vacuum shroud having a body portion partially defining a chamber and at least one duct portion outwardly extending therefrom. The body portion is adjustably fixed to the carriage through a connecting flange which extends upwardly from the body portion. The body portion also has a base portion that supports a resilient layer and a contact elements, the layer when it is compressed, exerts a force between the base portion and the contact element contacting the work piece supported on the planar support surface.

Abstract: A punch apparatus for punching holes in thin sheet material including a frame, a punch element mounted on the frame for rectilinear movement, which further includes a planar element of conductive material mounted on the punch element, a coil on the frame mounted adjacent to the planar element, a carriage for supporting and positioning the sheet in the path of the punch element, leads connected to a source of electric current to energize the coil, a mechanical arrangement to rebound the punch element, and a programmable apparatus to selectively move the carriage and energize the coil to thereby produce a punched hole pattern in the sheet.

Abstract: A sawing machine for cutting workpieces such as panels or packs of panels (P) comprises a horizontal workpiece support table (A) having a straight longitudinal slot (L) defining a cutting line, a sawing tool (S) movable along the cutting line and a longitudinal pressure device arranged above the workpiece support table and extending along the entire length of the cutting line. The pressure device consists of two pressure beams (1, 1') arranged at both sides of the cutting line, parallel thereto. Each beam can be raised and lowered independently of the other in relation to the workpiece support table in order to clamp thereon the workpiece to be sawed or to contact the surface of the support table.

Abstract: A rotary table saw for sectioning dental models having a housing with a base portion and a working table mounted on the base portion. The working table is controllably depressible so as to be moved upward and downward with respect to the base. The motor housed in the base drives a rotary blade oriented in a vertical direction. A slit in the work table permits the blade to emerge therethrough as the work table is depressed. The vacuum outlet is placed in flow communication with the surface of the work table during depression of the work table to remove saw dust from the work table. The dental model is first marked and scored on the occlusal surface and then its base is placed on the work table with the blade hidden beneath the work table. The work table is depressed to permit emerging of the rotary blade cutting from the underside of the dental model.

Abstract: A system for selecting wood veneers on the basis of their size comprises in combination: a cutter, at least a selector apparatus downstream of the cutter composed of a vacuum conveyor, expellers cooperating with the conveyor to separate the veneer from it, sensors for reading the length of the veneer which are disposed upstream of the cutter and which control the coming into operation of the expellers, and a conveyor for taking the veneers to a stacker downstream of the selector apparatus. The expellers consist of a plurality of compressed air nozzles above the feed path of the veneer which are adapted to direct in a controlled manner jets of air against the veneer so as to detach it abruptly from the vacuum conveyor.

Abstract: The panel saw has an upright supporting grid (2) with vertical and horizontal supporting bars (2a and 2b resp.). The pivotable saw unit (6) is attached to a displaceable beam (5).In order to reliably pick up the wood dust which collects behind the panel (P) to be sawed and which according to the invention amounts to 3 to 5% of the total wood dust quantity, a continuous cover element (7) is fixed to the rear side of the supporting grid (2). Moreover, a rotatably mounted spindle (A) with a sealing foil (10) which can be rolled up is arranged in the marginal area of the supporting grid (2). The sealing foil (10) is brought to bear against the panel edge adjacent to it by a counterweight arrangement (G) having tension cables (12, 18).Flow channels (K) are thereby formed between the horizontal supporting bars (2b), which flow channels (K) are defined on the rear side by the cover element (7) and on the front side by the panel (P) and the sealing foil (10).