Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.
October 12, 2012
Date of Patent:
February 24, 2015
Andreas Stihl AG & Co. KG
Jochen Buchholtz, Matthias Schulz, Helmut Zimmermann
Abstract: A corrugated fiberboard box assembly including a first portion including a bottom section having a pair of opposite long edges and a pair of opposite short edges with all edges being bounded by a plurality of creases, a pair of opposing side panels running along and connected to the pair of opposite long edges by two of the plurality of creases, and a pair of opposing end panels running along and connected to the pair of opposite short edges by another two of the plurality creases. The first portion being foldable to form a rectangular box with the bottom section on the bottom and the side panels and end panels both extending substantially perpendicularly upwardly away from the bottom to form side walls of the box. The box further includes a separate inner liner configured to fit within an inside of the side walls and a top configured to fit over the tops of the side walls.
Abstract: A tailor weld blank assembly and method for making the blank assembly include providing a first metal sheet and a second metal sheet having at least one different characteristic from the first sheet. Complementary interlocking structures are provided on adjoining edges of the first and second sheets and the sheets are mechanically interlocked together by making a weld along the adjoining interlocked edges. Thereafter the permanently affixed together sheets are formed to make a formed sheet metal product. The provision of both a mechanical interlock and a weld provide a blank assembly that is strong for forming into a stamped product, and a metal product that is strong for its intended use.
Abstract: A system and method for cutting shingles according to which a plurality of cutting blades are mounted on the outer circumference of a cutting cylinder, and the cylinder is rotated with the blades engaging the sheet while effecting relative translational movement between the cylinder and the sheet so that shingles are cut from the sheet upon one rotation of the cylinder.
Abstract: A method and apparatus for fray-free cutting at the perimeter of an area of a textile sheet on a textile-receiving surface, including creating an anti-fray condition in the sheet along a path at the perimeter by an anti-fray instrument movable along the surface as directed by a controller based on programmed information regarding the perimeter, and cutting the sheet at the perimeter by a cutter movable along the surface as directed by the controller based on the programmed information. The anti-fray instrument is preferably an anti-fray substance applicator or, if the textile is a thermoplastic textile, a laser device configured and arranged to induce an anti-fray state therein.
Abstract: For manufacturing a straight strip lamination, a die is provided having at least a main slot punch and a part feature punch. The strip is fed into the die station with a constant slot step distance progression with the slot punch activated to create a plurality of slots. When a part feature is to be punched, the slot punch is deactivated, the part feature punch is activated, and the strip is fed with a new step distance, which is different than the slot distance.
Abstract: A method and system of cutting parts from sheet material is disclosed. The system identifies critical segments of the cutting path where cutting difficulties may arise and modifies the data that guide the cutting tool for more accurate cutting through the critical segments. In particular, the system identifies segments of the cutting path proximately close to one another called “common line segments” and generates a optimized cutting path using a single pass to cut common line segments and minimizing total cutting time, including dry haul time. The method and system of the present invention provide an optimal cutting path and control of a cutting tool resulting in higher quality cut pieces and the higher throughput. Therefore, the method disclosed allows for and makes desirable the close nesting of templates without buffers.
Abstract: In a method of cutting roofing shingles, multiple webs of roofing material are moved to a cutter. The webs are positioned in stacked relationship prior to the cutter. The webs have distinct portions such as tabs. The locations of the distinct portions of the moving webs are sensed by sensors. End cuts are simultaneously cut through the multiple stacked webs with the cutter to produce separate roofing shingles from the webs. The movements of the webs are controlled, based on the sensed locations of the distinct portions, so that the end cuts of the roofing shingles are positioned at predetermined locations relative to the distinct portions.
October 26, 1999
Date of Patent:
March 26, 2002
Owens Corning Fiberglas Technology, Inc.
James Franklin White, David Russell Rodenbaugh
Abstract: A method of producing sub-images for use in forming a larger image from a series of the sub-images. The method includes printing each of the sub-images of the series of sub-images and a portion of the larger image surrounding the sub-image on a separate sheet of material. Each sub-image is printed on the same location on the respective sheet. Then the sheets are cut to the size and shape of the sub-images. When the sub-images are positioned to form the larger image, the sub-images are in a non-overlapping and contiguous relationship.
Abstract: Electronic parts that have axially extending leads are separated from a first strip on which they are supplied for being rearranged and retaped to provide a second strip for supply to an automatic assembly machine. The parts are separated from the first strip by cutting the strip transverse to the strip at locations between adjacent parts. The tape chips remaining on the separated parts are removed by engaging them with movable jigs, located on opposite sides of a body portion of the part, and by moving the jigs along the leads away from the body portion. The jigs are mounted on a rotating rotor and engage grooves in a stationary cam. The jigs move toward and away from each other by the engagement with the grooves as the jigs are moved around the stationary cam. After the parts are separated and the tape chips removed, the parts are transferred to a retaping machine to be attached to the second strip.
Abstract: When a material having two straight lines is cut into a plurality of series of strips along a plurality of predetermined curves, one series of strips is in direct contact with another adjacent series of strips.
Abstract: A rotor assembly for an electric motor includes a plurality of laminations disposed in a stack, a tension rod extending axially through the rotor lamination stack, and end clamps disposed at each end of the rotor lamination stack and secured to the tension rod for compressing the stack to hold the laminations of the stack fixedly in position by compression. A method of stamping rotor and stator laminations for a doubly salient electric motor from a single piece of metal includes the steps of stamping a rotor lamination out of the piece of metal, and stamping the stator lamination out of the piece of metal offset from the stamping of the rotor lamination so that a tooth of the rotor lamination stamping is taken from the gap between two teeth of the stator lamination stamping. The centroids of the rotor and stator laminations in their stamped locations in the piece of metal are offset from one another.
Abstract: A die for use in a punch-press operation has a constant shear angle throughout the entire cutting edge and the surface profile of the die is convex to draw the workpiece away from the cutting edge of the die as the workpiece is being punched out.
Abstract: A method of cutting blanks from an elastic paper comprises the following steps: removing a single elastic paper web of indefinite length from a mother roll; longitudinally cutting the single web, as it runs off the mother roll, into a plurality of paper panels; guiding the running paper panels in pairs into a superposed, face-to-face relationship to form at least one running superposed paper panel pair; guiding the running paper panel pair between cooperating cutting rollers of a rotary cutter and cutting the blanks from the running paper panel pair by the cutting rollers alternatingly from opposite sides of the paper panel pair while countersupporting the paper panel pair by the momentarily non-cutting cutting roller.
Abstract: An apparatus for scraping off burrs at resin outer layer of a golf ball. According to this method and apparatus, even if some errors exist in the diameter of golf balls of resin outer layer, only burrs can be scraped off automatically at high efficiency, without impairing the degree of true circle of golf balls and without generating deformation of golf balls.
Abstract: A kit for making a decorative item from an aluminum can and the process of using the kit. The kit has a can-holding member which has a pair of arms, at least one of which has a guide bar which abuts the surface of the can. A knife is drawn along the guide bar scribing a groove along the surface of the can. A series of grooves, preferably equally spaced, are formed around the can, and the can is then pressed inwardly to break the grooves and form a series of elongated slats around the can. These are bent outwardly to form a decorative object.
Abstract: A method for manufacturing electric motor stator cores including forming and separating stator core laminations from a sheet of preselected material having a pattern including dovetailing and abutting rows of abutting circles with integral tab portions, each sized to define a core lamination and stacking a preselected number of the separated laminations to provide the basic stator core.
Abstract: A method, and in particular an automatic method, of cutting parts out from sheet or plate material, the method comprising the steps of: placing templates (1, 2) having the shapes and sizes of the said parts upon said sheet or plate of material; recognizing the respective shapes, sizes, orientations, and positions of the templates on the material by means of distinctive signs characteristic of the shapes and sizes of the respective templates; and cutting out parts from said sheet or plate material along outlines defined by said templates; the method including the improvement of a further step in which any overlaps (3) between templates are detected and the lines of cut where the templates overlap are modified either by cutting along a straight line (6) interconnecting the points of intersection (4, 5) between the outlines of the overlapping templates, or by cutting along an average line (9) equidistant from the outlines of the templates between the points of intersection of the outlines of the overlapping temp
Abstract: An automatic cable tie installation tool for applying discrete cable ties around bundles of wires or the like where the cable ties are provided to the tool on a continuous ribbon. The automatic tool including a dispenser mechanism that accepts the ribbon of cable ties and provides discrete cable ties therefrom; a tool mechanism that positions the discrete cable tie around the bundle of wire, tensions the tie to a preselected value and severs the tail of the cable tie; and a conveyance mechanism that delivers the cable tie provided by the dispenser mechansim to the tool mechanism.
October 21, 1986
Date of Patent:
December 13, 1988
Roy A. Moody, John J. Bulanda, Robert F. Levin, Steven S. Timian, Stephen A. Waltasti
Abstract: An automatic buffing machine and method for automatically buffing a golf ball are disclosed. The golf ball is oriented such that the flash ring is in a predetermined plane and then the flash ring is removed. The golf ball matrix is preferably utilized to orient the golf ball and both cutting and sanding are preferably used to remove the flash ring.
February 5, 1988
Date of Patent:
October 25, 1988
Walter L. Reid, Ralph L. Delano, Michael Ashley
Abstract: In a method for making U-shaped core laminations and T-shaped magnetic circuit closing elements fitting in between the legs thereof, in a choke, ballast or transformer, in particular for use as an accessory element in gas discharge lamps, two mutually offset rows of U-shaped core laminations having their open ends facing one another and having the pairs of adjacent outer legs thereof interfitting with one another are punched out in such a manner that one pair of outer legs of one row is laterally adjacent to one pair of outer legs of the other row, and the T-shaped magnetic circuit closing elements, with cross legs adjacent to the connecting middle legs of the U-shaped core lamination are punched out of the free spaces located between the ends of the pairs of outer legs and the connecting legs, located facing tem and spaced apart from them, of the U-shaped core laminations.
Abstract: A process in the manufacture of a mattress for a mattress unit including forming a pattern simultaneously within a surface of each of two bodies of a foamed plastic material in side-by-side juxtaposed position. The surface of each body is cut to present a "checkerboard" convolute pattern.
Abstract: The present invention relates to a method and apparatus for creating, laying out and cutting patterns on laminar sheet material having particular application to air handling ducting which permits the fully automated creation of the patterns required to subsequently construct three-dimensional products such as fittings, which have heretofore only been designed by skilled technicians. Information representative of the geometric configurations of a group of basic pattern types, including mathematical relationships, is stored in digital form in a memory. From the basic pattern types, substantially all variations of the three-dimensional product can be developed. An operator specifies the type of fitting required and inputs selected actual basic dimensions of the product, the basic dimensions being those dimensions necessary to specify the overall dimensions of the product.
Abstract: A high optical quality corner is produced on a cleaved crystal which may include a stripe or surface optical waveguide by making a fracture initiation mark along only a portion of the surface intercept of the desired cleavage plane with a first of two major surfaces of the crystal and then tensioning the first major surface of the crystal to fracture the crystal along the desired cleavage plane beginning at the fracture initiation mark. This produces a high optical quality corner along a portion of the intersection of the newly cleaved surface with the major surface of the crystal. This high optical quality corner is located where no fracture initiation mark was made and enables the crystal to be used in as-cleaved form for end-fire coupling between its waveguide and an external waveguide such as an optical fiber.
Abstract: A wheel disc and method of manufacture wherein disc blanks are punched from a continuous length of strip material in an enchelonned nested pattern so as to minimize stock scrap and wastage. The disc blanks are substantially flat and have a peripheral edge defined by a series of concentric convex crowns separated from each other by concave recesses. The disc blanks are each formed to a final cross sectional configuration which optimizes the relationship of disc strength to weight. The disc is welded into a drop center wheel rim to provide a wheel assembly for pneumatic tubeless tires.
Abstract: In a method for simultaneously cutting three continuous double-comb components from a metal strip the strip is moved forward stepwise. At each stop, a row of notches is made along each edge to form teeth and a row of crosses is removed from its central part, the crosses being made up of two portions of the central part and two teeth facing notches and separated therefrom by a portion of the central part. After the teeth have been bent, the comb-shaped components can be used to reinforce rubber packing or linings, more particularly in the car industry.
Abstract: A plurality of identical, irregular, non-polygonal pieces, such as motorcycle silhouette games pieces, are cut from flat stock of predetermined width and indefinite length with minimum waste of the stock, by laying out a gang cutter "pattern", "marker" or "stencil" in a sequence of steps comprising (1) "boxing in" the curved outline of one non-polygonal piece to form a plane polygonal figure of three sides or more, (2) combining two such polygonal figures into a parallelogram, (3) nesting any protuberance in one piece into any recess in the other piece to reduce the area of the parallelogram (4) laying out a plurality of said parallelograms side by side across the width of the stock and (5) successively cutting the resulting pattern from the stock by a gang cutter arranged in the pattern.
Abstract: Tool guide for a knife-edged hand tool for use in the fabrication of an air duct transition from a sheet of fibrous material, said sheet having transversely extending folding grooves therein, for cutting from said panel a wedge-shaped piece of material of predetermined size.
Abstract: One disclosed method involves punching winding leg and yoke laminations from a strip, subsequently forming a core yoke section, and forming a core winding leg (or coil core). Thereafter, an excitation coil is supported on the coil core, and the coil core and core yoke are assembled in reoriented relation relative to the relative orientation of the laminations when punched from the original strip. The winding leg laminations are reoriented 180 degrees, about a longitudinally extending axis, so that a first surface of the original strip material which faces one direction, as it is punched from the strip, faces an opposite direction in the winding leg section in a finished motor.The geometrical configuration of the laminations prevent a random location of the winding legs relative to the yoke laminations, yet permits two distinctly different relative lamination orientations.