Abstract: A dispenser is disclosed for retaining and dispensing plastic bags which are wound on a core. The dispenser is made of heavy metal wire configured to provide curved tracks in which a core can ride. The dispenser includes a separating tongue which enables a customer to dispense the bags one by one by pulling on the free end of the outermost bag. In order to prevent freewheeling, a braking surface is provided which engages the roll and retards rotation. A supplemental braking force is provided by spring elements mounted within the tracks which apply a frictional force to the ends of core. The spring elements are oriented such that the force applied to the core by the springs as the roll rotates when the bags are dispensed, causes the roll to tend to move downwardly into engagement with the braking surface. The spring elements are attached to the dispenser at a point below the braking surface. As a result, the braking force applied by the springs increases as the size of the roll decreases.

Abstract: A continuous paper cutting unit including a press mechanism for pressing and holding both sides of the perforations of continuous paper by a press means link mechanism, and a cutting mechanism like a blunt instrument using a cutting means link mechanism. With the appropriate placement of the paper guides, the transport of the continuous paper is smooth and the cutting of the continuous paper along the perforations thereof is preformed reliably using a small drive force.

Abstract: A manual tile cutter includes a base adapted to support a tile, a rail connected to the base above the tile and a carriage slidably mounted on the rail. A manually operated lever and a cutting toolholder are independently pivotally mounted to the carriage at a common pivot point. A shaft has one end mechanically coupled to the cutting toolholder and an opposite end extending through the carriage and connected to a manually adjustable knob. A biasing element applies a force on the cutting toolholder toward the tile. A height adjusting device in mechanical communication with the knob and the cutting toolholder adjusts the height of the cutting tool with respect to the tile but independent of the lever to accommodate different tile thicknesses.

Abstract: An optical fiber cutter for cutting an optical fiber wire according to the principle of the stress-rupture includes a tension applying mechanism and a movable blade. The tension applying mechanism applies tension to the optical fiber wire in an axial direction thereof. The movable blade is contactable with the optical fiber wire in a direction perpendicular to the axial direction so as to impart an initial crack to the optical fiber wire to which the tension is applied. The movable blade contacts the optical fiber wire in only one direction, which is perpendicular to the axial direction.

Abstract: A method and apparatus (10) for breaking a wafer (24) into die (26) having a high aspect ratio. In one embodiment, a multi-radii dome (12) is utilized to controllably break the wafer in two directions. The two different dome curvatures (R1, R2) provide an even, controlled, force along the kerfs in both the X-direction and the Y-direction. In another embodiment, a cylindrical dome (80) being curved (R3) in the Y-direction and flat in the X-direction is used to break a wafer into die having exceptionally high aspect ratios. The present invention reduces the likelihood of die fracture in the long dimension during the wafer break process. The wafer (24) is mounted on stretchable wafer tape (18) during the break process to prevent the die edges from contacting and rubbing with one another after the break process. The present invention allows separation of die of exceptionally large aspect ratios such as those having a 1:25 aspect ratio.

Abstract: A continuous paper cutting unit including a press mechanism for pressing and holding both sides of the perforations of continuous paper by a press means link mechanism, and a cutting mechanism like a blunt instrument using a cutting means link mechanism. With the appropriate placement of the paper guides, the transport of the continuous paper is smooth and the cutting of the continuous paper along the perforations thereof is preformed reliably using a small drive force.

Abstract: A brick cutting apparatus which includes a base frame, a cutter holder moved along a guide track at the base frame, a disk cutter and a stop plate respectively coupled to the cutter holder by a respective screw bolt, and a handle connected to the cutter holder and operated to move the cutter holder over the brick to be cut, wherein a carrier is coupled to a dovetail groove at one lateral side of the base frame to hold a supporting leg outside the base frame for supporting the brick to be cut on the base frame; the disk cutter has two reinforcing flanges raised from two opposite side walls thereof, and a bearing at a center through hole thereof which receives the corresponding screw bolt; a set of rubber packing blocks of different thickness are selectively fastened to the stop plate at a bottom side by a plug joint to adjust the vertical thickness of the stop plate subject to the thickness of the brick to be cut.

Abstract: A dispenser apparatus includes a loading device for sensing when an initial working roll of web material previously positioned in a receptacle is empty, so that it can be replaced with a fresh second roll positioned between a pair of flanges. The loading device includes a first mechanism fixed within a hinged cover of the apparatus including a movable tab in a position substantially opposite the point where the material web is inserted and placed on a drum. The device further includes a second mechanism extending from the apparatus housing which is activated when the cover is closed to sense when the initial roll is empty and to control the actuation of the mechanism to load the web from the fresh second roll.

Abstract: An apparatus for safely controlling a paper cut-off device in a paper towel dispenser in which a knife of the cut off device can effectively be locked in a stop position within a recess of a drum. Alternatively, the apparatus can lock the knife in a position of initial rotation within the recess of the drum prior to ejection of the knife. The knife is locked in either of these positions by stopping mechanisms arranged on the lateral side of the housing of the towel dispenser at a location of a fixed cam with a plurality of radiating fingers, and near the end flange of the drum opposite a heel-shaped pinion, respectively. A rotation control mechanism disposed at the base of the housing ensures swiveling and retraction of the knife into the recess formed on the drum.

Abstract: A cutting device for cutting elongate flat-walled tubular stock into preselected lengths which cutting device includes opposed circular cutting blades that are laterally movable to effect a transverse cut across the tubing. The cutting blades are rotatably mounted and engaged with a locking assembly to prevent rotation thereof. Each cutting blade includes a peripheral cutting edge incrementally defining a plurality of contact portions with one contact portion being disposed in an active cutting position and the remainder of the contact portions being disposed in inactive standby positions. Each cutting portion has an arcuate shape so as to minimize the vertical components of the cutting force being applied thereby as the depth of the cut approaches an interior surface of the tubing.

Abstract: A magnetic device (22, 222 or 322) for scoring glass (150) and a method for using the device to score glass. The system (100) for use with the device includes a scoring board (12), a scoring guide (18 or 218) and the device. The scoring guide has a smooth, flat outer surface (18E or 218C) and is constructed of either a magnetic or magnetically attractable material. The device includes a body (24 or 325) and a blade unit (26). The body has a smooth flat end and is preferably magnetic. Alternately, the flat end is constructed of a magnetically attractable material. To score glass, the glass sheet is placed on the scoring board and the guide is mounted on the board over the glass. The guide is mounted adjacent and parallel to the line to be scored on the glass. The flat smooth end of the device is mounted on the flat smooth outer surface of the guide so that the blade (26B) of the blade unit is aligned with the line to be scored.

Abstract: A glass cutting disc forms a scribed line on a surface of a glass product along which the glass product can be broken when an external force is applied thereto. The glass cutting disc includes an outer peripheral portion radially outwardly beveled to define a peripheral ridge. The peripheral ridge has surface features formed thereon so as to alternate in a direction circumferentially of the cutting disc. The surface features may be in the form of protrusions and grooves that alternate with each other over the peripheral ridge.

Abstract: Apparatus for automatic scribing and breaking of semiconductor wafers wherein scribing is performed at a scribing station and the scribed wafer transported in the X direction to a breaking station on an X-Y table. Scribing and breaking of parallel lines is accomplished by transporting the wafer step-wise in the Y direction by the Y table. Rotation of the wafer for scribing and breaking along sets of lines perpendicular to one another is accomplished by a theta table carried on the Y table. An impulse bar is carried by the X table for applying force to the bottom surface of the wafer during both scribing and breaking. In one embodiment, upward movement of the wafer during breaking is resisted by an anvil positioned above the wafer. In a second embodiment, such upward movement is resisted by a vacuum chuck beneath the wafer, to avoid contact with the upper wafer surface.

Abstract: Improved commercial single crystal wafers (250), as shipped to end users form a full circle, and comprise a "stress concentration notch" (172) which accurately defines a desired cleavage plane. The stress concentration notch is introduced into the wafers in bulk by means of a properly oriented cut along the length of a single crystal ingot, after machining the ingot to the desired end product diameter, and prior to sawing the ingot into slices. The stress concentration notch uniquely defines the first and second faces of the wafer.

Abstract: A scratch is made at least at one corner portion of the cathode ray tube and heat is applied so as to flank the scratch from the two sides. More specifically, electrical heating wires are disposed at the two sides of the scratch formed on the cathode ray tube and the electrical heating wires are used to apply the heat in a linear manner from the two sides of the scratch. Preferably, scratches are formed at the four corners positioned at the panel portion rather than the frit glass portion where the panel portion and the funnel portion of the cathode ray tube are joined, electrical heating wires to which tension is applied are disposed at the four corner positions of the panel portion so as to flank the scratches from the two sides, and heat is applied to the cathode ray tube by the electrical heating wires. Tension is applied to the electrical heating wires by springs.

Abstract: A presser assembly (10) is provided for supporting carton blanking scrap during a blanking operation. The presser assembly (10) includes a presser rail (114) having a first end (116) mounted to a guide cylinder (32) and a second end (154) mounted to a second guide cylinder (32) such that each end of the presser rail is vertically movable independent of the opposite end. This, in turn, prevents jamming of the presser assembly during the blanking operation.

Abstract: A method and apparatus for creating a step in the edge of a concrete block is presented. The method includes conveying the concrete block through a sawing station that saws a thin groove and leaves a thin strip of concrete near the edge of the block. The block is then conveyed through a shearing station that includes two rollers mounted to a bar. The inner distance between the outer periphery of the rollers is set to less than the thickness of the block and the resultant shear created by the roller arrangement shears the narrow strip of concrete from the block. The step created in the block is very even and rectangular in shape.

Abstract: A cutting roller having cutting blades and a receiving roller are provided downstream of pulling-out rollers for pulling out a web, and the web passing between them is cut. Accelerating rollers rotated at a transmitting speed higher than that of the pulling-out rollers apply a tension to the web. The cutting blades are formed with narrow cutouts, and the receiving roller is provided with narrow annular grooves. Stretched tension guide members extend through the notches and the narrow annular grooves so as to guide the web. The portions of the web corresponding to the notches and the narrow annular grooves are not cut by the cutting blades and are left as uncut portions. However, these portions are broken easily by the tension applied to the web. Since the widths of the cutouts and the annular grooves are very narrow, the torn marks on the broken portions of the web are not remarkable.

Abstract: A tire liner applier and method wherein a die and anvil shape the ends of the liner at a predetermined section which is transferred to a position adjacent the tire building drum where the section is stretched and the trailing end stitched against the drum. The leading end is clamped and applied to the drum where the next tire is built. The leading end and trailing end are tapered so that they slope away from the drum and provide a smooth transition where the ends contact the drum and outer layer of liner material. A butt splice may also be provided.

Abstract: A method of cutting non-metallic materials, specifically glass, resides in the heating of the material by an incident beam of radiation being effected to a temperature short of its softening point, with the rate of relative displacement of the beam and of the material, and the region of the heated zone which is locally cooled being selected to form a blind crack in the material. The method provides for increasing substantially the cutting speed and accuracy, and also for controlling the depth, shape and angle of the cut face formed by the crack.

Abstract: A presser assembly is provided for supporting carton blanking scrap during a blanking operation. The presser assembly includes a presser rail having a first end mounted to a guide cylinder and a second end mounted to a second guide cylinder such that each end of the presser rail is vertically movable independent of the opposite end. This, in turn, prevents jamming of the presser assembly during the blanking operation.

Abstract: The present invention provides a glass cutting apparatus for cutting glass to a predetermined pattern. The glass cutting apparatus includes a rotatable workpiece holder which is adapted to rotatably hold a glass workpiece and overlaying pattern thereon. A cutting unit is provided which includes at least one cutter blade for scoring the glass workpiece which is held by the workpiece holder, and a pattern follower which is adapted to abut against the pattern held by the workpiece holder during the scoring of the glass workpiece by the cutter blade. The glass cutting apparatus of the present invention may additionally include a grinding unit having a rotatable grinder for grinding an edge of the glass workpiece held by the workpiece holder and a pattern follower adapted to abut against the pattern held by the workpiece holder during grinding of the edge of the glass workpiece by the grinder.

Abstract: A bag dispenser, for separating and dispensing a series of plastic bags where one end is attached to the top of the next bag by perforation lines with a slot therebetween. The series of bags are dispensed from a device comprising a wire frame formed into channels to support the core that the series of bags are rolled onto. The channels allow the core to rotate in place but restrict its linear movement to the vertical direction. The dispenser has two braking devices, a braking bar underneath the roll of bags and a pair of fingers that are attached to the channels to engage the core. The braking bar is positioned transversely to the series of bags so that it supports them. The pair of fingers does not engage the core until the number of bags on the core has decreased and the core has begun to descend. The two braking devices work in combination to retard the rotation and dispensing of the bags and thus to apply a tension to the series of bags.

Abstract: To assure that a plate-shaped brittle material is exactly cut into two plate pieces, a jig having a thread-shaped projection secured thereto in conformity with a predetermined pattern positionally coincident with a cut groove formed in the plate-shaped brittle material, an elastic member located on the cut groove side of the plate-shaped brittle material, and a plate-shaped brittle material to be cut into two plate pieces are placed on a table of a press machine one above another, and subsequently, a predetermined intensity of pressing power is applied to the jig from above by operating a pressing machine. Alternatively, a jig having a thread-shaped projection secured thereto, an elastic member located on the opposite side relative to the cut groove side of the plate-shaped brittle material, and a plate-shaped brittle material to be cut into two plate pieces may be placed on the press table one above another.

Abstract: A tile cutter including an elongated bottom plate having a transversely extending tile stop backing and a longitudinal breaking web disposed on the bottom plate. A slide is movably mounted along a horizontal guide above the breaking web, with the slide angle lever being pivotally mounted on the slide and including a cutting wheel, breaker head and an actuating arm. The bottom plate is divided into a front and rear bearing area which, together with the tile breaker web, form a reliable three-point support even for small tile strips by a lateral transverse recess having a width which is sufficient for enabling gripping of a tile to be cut peripherally on the edge side.

Abstract: Apparatus for fracturing, into a bearing cap and a connecting rod, an integral preform which defines a cylindrical aperture and two spaced-apart bolt seat shoulders includes a guide member that defines a first guideway along which moves a first slide member, the latter in turn definlng a second guideway parallel to the first, along which a second slide member moves. A split mandrel has an upper part fixed with respect to the first slide member and a lower part fixed with respect to the guide member. The split mandrel halves define an internal tapered passageway for receiving a wedge capable of forcing the mandrel halves apart. Projections on the second slide member contact the bolt seat shoulders when the cylindrical aperture of the preform receives the split mandrel, and a camming member urges the second slide member toward the mandrel.

Abstract: The present invention relates to a device and method for cleaving optical fibers which yields cleaved optical fiber ends possessing high damage threshold surfaces. The device can be used to cleave optical fibers with core diameters greater than 400 .mu.m.

Abstract: A stripping apparatus includes a pair of first and second base plates which are disposed in facing relationship to each other in a vertical direction and movable toward and away from each other. The first and second base plates include first support holes and second support holes, respectively, disposed in alignment with each other in the vertical direction. A plurality of pressing pins are insertable into the first and second support holes. A fixing device is provided on each of the first and second base plates for releasably fixing the pressing pins inserted into the first and second support holes.

Abstract: To assure that a plate-shaped brittle material is exactly cut into two plate pieces, a jig having a thread-shaped projection secured thereto in conformity with a predetermined pattern positionally coincident with a cut groove formed in the plate-shaped brittle material, an elastic member located on the cut groove side of the plate-shaped brittle material, and a plate-shaped brittle material to be cut into two plate pieces are placed on a table of a press machine one above another, and subsequently, a predetermined intensity of pressing power is applied to the jig from above by operating a pressing machine. Alternatively, a jig having a thread-shaped projection secured thereto, an elastic member located on the opposite side relative to the cut groove side of the plate-shaped brittle material, and a plate-shaped brittle material to be cut into two plate pieces may be placed on the press table one above another.

Abstract: An optical fiber cleaving tool a terminus ferrule is affixed to an optical fiber prior to entry of the fiber into the tool. A portion of the optical fiber is passed through an elongated opening which is coaxial about the common axis of the fiber and the terminus ferrule. A sharp pointed fiber scriber is positioned between the exit of the elongated opening and a clamping device such that the scriber will automatically move toward the fiber in controlled motion until an adjustable force is applied through the scriber, impinging on the periphery of the optical fiber. The controlled, increasing radial force of the scriber in conjunction with the tension applied to the fiber by the clamping device causes the fiber to be cleaved in a mirror-surface plane which is substantially perpendicular to the central axis of the optical fiber. The mirrored surface is at essentially a 90.degree. orientation or various angle orientations close to 90.degree. in relation to the fiber central axis.

Abstract: In case a long size sheet which is sandwiched by a drive roller and a pressure roller and its tip portion is suspended downwardly with its dead weight from the sheet support surface is cut off in a straight line in a crossing direction with a cutter pen of a plotter capable of shifting the sheet in a crossing direction, firstly, the sheet is cut off in a crossing direction with the cutter pen leaving a predetermined region at the center portion of the sheet. Next, a half-cut or perforation work is applied to the predetermined region at the center portion, and then, the drive roller is rotated in the positive or reverse direction, and the sheet transfers back and forth along its longitudinal direction, and the region of the sheet where the drawing has been performed is shaken off from the other portion of the sheet by the transfer, and thus, the cutting operation of the sheet is completed.

Abstract: A device for removal of knockouts from a material sheet has a support plate for the material sheet having openings with continuous vertical walls. Each knockout overlaps the pertaining opening resting with its marginal bearing surfaces on the support plate. Knockout tools with vertical and horizontal narrow sides on a tool holder plate movable toward and away from the support plate are so arranged that their disposition is essentially vertical to the coordinated knockout and symmetric as regards the bearing surfaces. Each knockout tool on its support plate side features at least one point as an end of the one vertical narrow side. The angle between the point and the face extending from the point to the adjacent horizontal narrow side ranges from 20.degree. to 50.degree. projected in the side center plane.

Abstract: A dispenser for cutting and feeding a web of flexible sheet material is described in which a feed roller carries a web cutting blade and a spring connected to an eccentric crank affixed to the feed roll. While initial movement of the web through the mechanism and actuation of the cutter to effect partial separation of the web material is produced by the user's pull on the web, such pull also loads the spring which, upon unloading, delivers the cut web material from the dispenser. The spring is designed to gradually arrest rotation of the feed roll and to be exhausted of stored energy at a predetermined position of the feed roll whereupon the uncut segments of web material are efficaciously severed and the leading end of the succeeding web material is automatically positioned where it can be readily grasped by a subsequent user.

Abstract: An embossed card package production system (10) with a printer (48) supplied with a plurality of interconnected card carrier forms (26) for receipt of corresponding cards (30) inserted into the carriers at a card inserting apparatus (24) to form card packages, a form bursting apparatus (36) having a cutting member (240) with a cutting portion tautly extending between and partially wrapped about a pair of rotary members (242) and (244), a drive motor (248) interconnected with a chain linkage (250) for moving the cutting member (240) across preweakened lines (252) through and across end ones (26A) of the interconnected card carrier forms (26) to separate individual card carrier forms (26A) from the interconnected card carrier forms, a code sensor (38) mounted to an elongate sliding bar (290) for reading machine readable indicia (231) printed on the body of the carrier form (26) in back and forth directions opposite directions across the end ones (26A) of the interconnected carrier forms (26) as the forms are se

Abstract: An optical fiber cleaver is disclosed wherein a blade applies a pre-set force to an optical fiber to form a notch in that optical fiber. In a preferred embodiment, a spring applies a pre-set force to the blade such that should an undue amount of force be applied to the fiber from the blade, the blade will overcome the spring force and not move towards the fiber any further. The cleaver is preferably formed from two pivotally connected handle portions each including holder portions which come into mating contact with each other to provide a stop against further pivoting movement. At that time, the blade is forced into the optical fiber to cleave the optical fiber. In a further feature of this invention, an optical fiber guide provides a stop between an insulated portion of the optical fiber, and a stripped portion. The optical fiber guide is adjustable to adjust the distance between the end of the insulation and the location of the notch.

Abstract: A scribe-and-break tool for fracturing the free end of an optical fiber that is especially suitable for hand-holdable configurations and field use which has an elongate body with a plunger that is interrelated to a blade for scribing the free end of an optical fiber retained in tension within a depressible head that extends outward from the body and is depressible inward to bring the free end of the optical fiber into contact with the blade, thereby scribing the free end of the fiber causing the free end to break off.

Abstract: A process and device for marking and cleaving plaquettes of monocrystalline semiconducting materials is described. According to invention, in order to mark off a reference direction onto a plaquette of a monocrystalline semiconducting material having a low hardness, an impression (1) is formed on the useful face of the plaquette and in a non useful area of that face, the impression bringing into view at least one direction from which the reference direction (9, 11, 13) is deduced, and the latter is marked off by means of a line on the non useful area. Since the reference direction corresponds to a cleavage plane of the plaquette, the latter, in addition, is cleaved by tracing a cleavage line along the reference direction on the other face of the plaquette.

Abstract: The device for cutting wiping materials stored in a unit which automatically dispenses them in the form of a narrow, concertina-folded strip is outstanding in that it is made up of two profiled, metal blades with a cutting edge (5 and 6) mounted, so as to elastically hinge, between two pairs (1-2) and (3-4) to feed the folded material, at a determined point so that when the said pairs are rotated, the blades are gradually superimposed from one end to the other, during the rotation whilst remaining in permanent contact and in a position substantially parallel to the rotation axes of the pairs of toothed wheels throughout the cut in order to provide shearing type cutting of the folded strip of material inserted between the said pairs and fed by manually pulling the strip projecting from the unit causing the pairs to rotate.

Abstract: An optical fiber cleaving tool is disclosed having a frame with means for holding a fiber optic connector installed intermediate the length of an optical fiber against lengthwise movement, thereby providing a fixed fiber axis. A pair of selectively operable clamps are supported on the frame for engagement with the fiber at a location spaced from the connector, the clamps are further supported for slideable movement parallel to the fiber axis for placing a tension along the fiber axis to slightly enlongate the fiber. A pair of opposed, selectively operable fiber engaging members are supported on the frame for opposed engagement with the fiber, at least one of the members having a sharpened blade for scribing the fiber, the force placed on the fiber by one member being equal and opposite to the force placed on the fiber by the other member during scribing of the fiber for subjecting the fiber to zero torsion and zero bend stress.

Abstract: A feed mechanism for feeding a web of rolled flexible sheet material, such as soft paper towels, out of a dispenser. The mechanism includes a feed roller within the dispenser and a web cutting blade in the feed roller and projectable and retractable therewith as the feed roller rotates. A contoured cam is attached to an end of the feed roller, and a spring-loaded cam follower presses against the contoured cam. The cam follower, through the cam, controllably assists in the rotation of the feed roller during the feed roller cycle when the blade cuts the web and thereafter to feed a free end of the material to an accessible position outside of the dispenser. The needed maximum pull forces by the user on the material to cut and withdraw the material from the dispenser are thereby significantly minimized, and the likelihood of the soft towel material tearing off in the user's wet hands is accordingly reduced.

Abstract: Apparatus for manually cutting circles from glass utilizes a center support structure, in combination with a rule having a distance scale thereon, and a cutting head adjustably mounted on the rule. Reversal of the position of the cutting head on the supporting rule adapts it for use with either of two different forms of cutting components.

Abstract: A candle lamp includes a chimney base incorporating a projecting glass cutting wheel against which an operator may press and rotate a glass bottle to score the same for subsequent parting of the bottle into a chimney for the lamp. The base is movable relative to the bottle for vertical and angular adjustment of the wheel; and, the base provides a steadyrest for the bottle as it is rotated. Spring clips project from the top of the base in supporting engagement with the chimney.

Abstract: Apparatus is provided for making a cookie preform from a continuous cookie dough rope by inserting finger means into said rope in a direction generally transverse to a longitudinal axis of said rope and displacing at least selected ones of said finger means at a velocity relative to the velocity of said rope sufficient to stretch said rope to the breaking point to separate said portion from said rope, whereby said portion has at least one surface formed by said stretching action to have a coarse appearance.

Abstract: In a pocket fiber optic cleaver having an elongated substantially cylindrical body arrayed along a longitudinal body axis, the body having, in longitudinal sequence, a fiber entry port, a cut-length adjusting section, a cleaving area, and a waste fiber exit port, and including a cylindrical bore, concentric with the longitudinal axis for receiving an optical fiber, the improvement wherein the cleaving area comprises: a cleaving pad in the form of a cylindrical section whose longitudinal axis is arrayed orthogonal to the body axis; a spring loaded pivot arm adjacent the cleaving pad, the arm carrying a fiber scoring member and having its pivot point adjacent the exit port, the fiber scoring member being adjacent the cut-length area; and a pressure pad surrounding the scoring member on three sides, the open side facing the cut-length section.

Abstract: Apparatus for manually cutting both circles and strips from glass utilizes either a center support structure or an edger, in combination with a rule having different scales on opposite surfaces, and with a cutting head adjustably mounted on the rule. Reversal of the position of the cutting head on the supporting rule adapts it for use with either of two different forms of cutting components, and the edger is constructed not only to compensate for offset between the registration and cutting elements of the head, but also to enable use of the edge of either the glass workpiece or a furring strip as the reference surface along which the edger is run to cut strips.

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: The invention provides an automatic vertical glass cutting machine, including a cutting-wheel holder carriage which is movable vertically over a predetermined height of a vertical rap under the action of an actuator of the pneumatic kind, the cutting-wheel holder being fixed to the carriage by means of a rocker arm movable with respect to the body of the carriage which has a mechanism for locking said rocker against the carriage controlled by a fixed cam.

Abstract: A tile spacing gauge for gauging the space for a last row of tiles is also a tile holder that is coupled to a tile cutter so that the tile spacing gauge forms an integral component of the tile cutter. Tiles for the last row are held in position at a butting edge of the tile spacing gauge for scoring by the tile cutter along a line set by the tile spacing gauge without requiring an intermediate step of actually measuring and marking the tiles. In the described example, an elongate frame cross arm of the tile spacing gauge is formed with brackets spaced apart at either end. The brackets slideably receive elongate gauge arms in parallel with each other and at right angles to the frame cross arm. Positioning of the gauge arms affords parallel and independent measurement of distances from reference edges on the brackets placed against the second to last row of installed tiles to a boundary. The independent measurements take account of "out of square" wall frames and structures.

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: Apparatus for selecting and feeding web material (F1, F2, F3) from a plurality of supply bobbins (B1, B2, B3) of web material having different characteristics, comprising a selecting and dispensing device arranged on a slide (7) horizontally movable to and fro with respect to a feeder conveyor (T) which finally feeds the film to the packaging station (P) of the packaging machine. On the slide is mounted an indexing arrangement (13, 18) adapted to selectively bring into operative alignment with the feeding conveyor (T) one draw-and-guide unit (A1, A2, A3) which draws the selected film and delivers it to the feeding conveyor (T). The operative engagement between the draw-and-guide units (A1, A2, A3) is obtained by opening the feeding conveyor (T) which consist of a superposed belts conveyor (101, 201) and pinch rollers (R1, R2) and inserting therebetween the forward portion (118, 218, 318) of the draw-and-guide unit.