Continuous Strip Patents (Class 29/33S)
  • Patent number: 5771560
    Abstract: Method and continuous casting line for the continuous casting advantageously, but not only, of long products such as billets or blooms, whereby the solidification of the cast product (16) is completed at a position downstream of the outlet of the mould (13) and whereby the cast product (16) leaving a continuous casting machine (11) curving at a speed of at least 4 mts/min.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: June 30, 1998
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Umberto Meroni, Domenico Wogler Ruzza, Gianni Gensini, Dario Lestani
  • Patent number: 5669128
    Abstract: An index-feed machining system comprising a plurality of machining units, each having a cassettes having a plurality of machining means and detachably fitted to a machining unit proper, disposed at intervals of mP (m being a given positive integer, and P being a feeding pitch of a workpiece) in a direction in which the workpiece is fed to sequentially machining the workpiece that is index-fed at the feeding pitch of mP, in which a ram is vertically movably provided on an upper end of the machining unit proper constituting the machining unit, a hydraulic cylinder is provided in the machining unit or the ram, a piston is vertically movably provided in the hydraulic cylinder, an actuating unit comprising an eccentrically rotating shaft and the piston that can be engaged with each other via a connecting rod or via a connecting rod and the ram, is provided above the machining unit, and a hydraulic circuit is provided so that operating fluid can be selectively introduced from the hydraulic circuit to an upper part
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: September 23, 1997
    Assignee: Institute of Technology Precision Electrical Discharge Work's
    Inventors: Shoji Futamura, Keizo Unno
  • Patent number: 5657529
    Abstract: In a production line both the base frame and also the working area is subdivided into modular assemblable modules, the base unit having three reception positions which can be provided with slide-in working units and receptacles for driving units and a trolley transferring the particular working unit. The working unit, after a control console has moved out of the sliding in path, can be moved in and out parallel to the horizontal separating plane and transversely to the conveying direction and can then be adjusted and locked. Thus, with the same base units a randomly long basic frame can be created for randomly succeeding working stations.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: August 19, 1997
    Assignee: bielomatik Leuze GmbH & Co.
    Inventors: Martin Bohn, Wolfgang Scheller, Klaus Hoerz
  • Patent number: 5630266
    Abstract: A method and apparatus for making a plurality of integral support plates for chairs, involving passing a strip of metallic material along a forming line and carrying our a series of operations on the strip, including: piercing and lancing holes, removing material adjacent the holes to permit use of a strip carrier, and cutting notches in opposed longitudinal sides at a first stage; then lancing the strip along two substantially transverse lines extending inwardly to the lancing holes; then carrying out a plurality of sequential operations for creating an integral, closed-ended sleeve projecting from the plate. A subsequent stage involves piercing the closed end of the sleeve and trimming away excessive edge material around the plate. At a later stage, reinforcement ribs are provided, along with any additional profiles that are needed. Then, mounting holes and any required slots are pierced. Finally, the completed support plate is cut from the strip.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: May 20, 1997
    Inventor: Helmut Bauer
  • Patent number: 5606787
    Abstract: A continuous process line for converting hot rolled stainless steel strip to final gauge product is provided. The stainless steel strip has a scale formed on the surface thereof. The steel strip is introduced to a rolling mill to reduce the thickness of the hot rolled stainless steel to a final gauge thickness and tolerance. The rolling mill also cracks the scale on the surface of the final gauge thickness strip. An annealing section anneals the final gauge thickness strip received from the rolling mill. A pickling section pickles the annealed strip from the annealing section and removes the scale from the surface. Preferably, a molten salt bath section provided between the annealing section and the pickling section conditions the scale cracked in the cold rolling section and passes the conditioned stainless steel to the pickling section.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: March 4, 1997
    Assignee: J & L Specialty Steel, Inc.
    Inventor: Michael F. McGuire
  • Patent number: 5526668
    Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals at mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: June 18, 1996
    Assignee: Institute of Technology Precision Electrical Discharge Work's
    Inventors: Shoji Futamura, Chikara Murata
  • Patent number: 5335415
    Abstract: An apparatus for winding a belt-like member and a method of feeding a belt-like member for helically winding a belt-like member of a small width around an outer periphery of a rotating body which is rotatable about an axis of rotation and whose radius from the axis of rotation to the outer periphery thereof changes in correspondence with an axial position. A holding device is capable of holding a starting end of the belt-like member from both obverse and reverse surface sides thereof and of pressure-fitting the starting end of the belt-like member onto the rotating body. A feeding device moves the starting end of the belt-like member from a holding position where the belt-like member is held to the rotating body by moving the holding device, so as to feed the belt-like member to the rotating body.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 9, 1994
    Assignee: Bridgestone Corporation
    Inventor: Yukitaka Okufuji
  • Patent number: 5319833
    Abstract: Apparatus for producing coils of spring steel material comprising an unwinding station, a cutting station, a winding spindle which contains angled gripping wires on its peripheral surface and conveying means for conveying the spring steel material from the cutting station to the winding spindle.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: June 14, 1994
    Assignee: Stop-Choc Schwingungstechnik GmbH
    Inventors: Hans Kohl, Jorg Weinschenk, Martin Hoffmann
  • Patent number: 5197179
    Abstract: A continuous process line and a method for conversion of hot rolled stainless steel strip to a condition suitable for cold rolling. The process line comprises a conventional hot band annealing and pickling line having annealing and pickling sections, to which a rolling mill is added ahead of the annealing section. The process comprises the steps of cold rolling, annealing and pickling to minimize gauge and hardness variations along the length of the strip and to reduce the thickness of the strip.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: March 30, 1993
    Assignee: T. Sendzimir, Inc.
    Inventors: Michael G. Sendzimir, John W. Turley
  • Patent number: 5179770
    Abstract: Three metal foils are simultaneously fed in opposing relationship through a machine which automatically fabricates a sheet metal sandwich structure therefrom. The foils are first tensioned in aligned opposing relationship. The center sheet is then fed through a pair of free floating gear shaped corrugator tools which form corrugations or undulations therein. Adhesive is then applied to the inner surfaces of the two outer foils and the three foils passed through a pair of drums which press the foils together between opposing metal bands and provide uniform heat thereto through the bands to effect curing of the adhesive. The foils are further pressed together between the bands by means of air diaphragms or bladders which provide hydraulically controlled clamping force thereto. Finally, the sandwich structure thus formed is trimmed and cut to form boards of the desired width and length.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: January 19, 1993
    Assignee: LCOA Laminating Company of America
    Inventors: James P. Block, Stanley W. Levasheff, Gordon G. Jarosek
  • Patent number: 5131134
    Abstract: An apparatus for coiling strip, in particular, continuously cast thin slabs, which after leaving the continuous caster are wound into a coil in a furnace at a casting speed, and are payed out of this furnace at a rolling speed, whereby preferably two furnaces are preferably located one above the other for alternating coiling and payout. To improve an apparatus of the type described above for the coiling of strip which has only small thermal losses in a largely closed furnace, and has the smallest possible number of moving parts inside the furnace to achieve a high degree of operational safety and reliability. The invention proposes that each furnace has a threading opening for the strip which is largely closed by a pair of pinch rolls, and together with the pair of pinch rolls, can be pivoted around its horizontal axis, which corresponds to the coiling axis, from the coiling position into the payout position.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: July 21, 1992
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Herbert Quambusch, Helmut Pecnik, Peter Jollet
  • Patent number: 5074018
    Abstract: A method and apparatus for cutting pipes into sections are described. A punching unit (7) forms apertures (8) in strip (2) from which pipe (4) is formed on winding core (3). A cutting device (5) has a circular shears (10) which has a first, smaller-diameter cutting roller (13) and a second cutting roller (14) each having two cutting edges. The first cutting roller (13) is swivelled through aperture (8) into the pipe (4). Rotary movement of the pipe (4) effects cutting, during which the cutting rollers (13, 14) move in synchronism with the pipe (4) so that the pipe is cut from the inside and the outside by the cutting rollers (13, 14).
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: December 24, 1991
    Assignee: Emil Suter Maschinenfabrik AG
    Inventors: Rudolf Binggeli, Fritz Langmeier
  • Patent number: 5042124
    Abstract: A machine in which butterfly clips are prebent and then punched out of steel strip and simultaneously finally bent, such that they fasten together a spring and the frame of a spring core. Thus, both the punching out of the clip and the final bending process, i.e. the connecting process between the frame and spring parts, are carried out in a single tool. The machine therefore operates particularly cost-effectively, because, in comparison with the prior art, the separately punched butterfly clips do not have to be inserted into a separate bending machine.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: August 27, 1991
    Assignee: Spuhl AG
    Inventor: Hans Knopfel
  • Patent number: 4998338
    Abstract: A method and an arrangement for manufacturing hot-rolled steel strip from continuously cast initial materials in continuously successive work steps, wherein the continuously cast initial material is cut after solidifying to a certain length, is heated in a soaking furnace to rolling temperature and is introduced into a finishing rolling mill train for rolling out. The continuously cast initial material is introduced after being heated to a multiple-stand, reversible finishing rolling mill train and a coilbox connected downstream to the finishing rolling mill train.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: March 12, 1991
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Jurgen Seidel, Wolfgang Rohde
  • Patent number: 4887343
    Abstract: In a roller leveler having a number of work rollers, an improvement is proposed when a junction of metal web passes. Position detecting circuitry detects the junction of the metal web to output a detection signal. In response to the detection signal, an arithmetic unit applies an instruction signal to a depression control unit so that an amount of adjustment to be given to the metal web in the roller leveler is controlled to a suitable value.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: December 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hirohiko Ohishi
  • Patent number: 4868961
    Abstract: An apparatus for engraving vein cuts in a flat metal strip is described including a support adapted to support the metal strip thereon. Three air-driven motors are mounted on the support and have rotary cutting tools thereon which are utilized to cut angularly disposed vein cuts and a horizontally disposed vein cut in one surface of the metal strip. The strip is advanced across the support with the cutting tools being brought into engagement with the strip at the proper time to create the vein cuts therein. A punch is also mounted on the support for creating indexing notches at the lower edge of the strip. The sequential engraving and advancing of the strip through the support is controlled by a programmable controller.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: September 26, 1989
    Assignee: Coleman-Frizzell, Inc.
    Inventors: Samuel L. Coleman, Willem T. de Graaff
  • Patent number: 4782575
    Abstract: A power transmitting belt manufacture wherein belts are molded to have various cross sections. The belts are machined to a desired cross section. Each belt is entrained about drive and driven pulleys to run the belt under a preselected tension. At least one roller is caused to engage the back surface of the driven belt to reinforce the otherwise unsupported belt at the point of cutting between drive and driven pulleys. A pair of opposed cutting blades are engaged with the opposite sides of the belt to form the opposite side edges of the final belt section.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: November 8, 1988
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yoshihiko Kamiyama, Misao Fukuda, Akihiro Nagata
  • Patent number: 4754535
    Abstract: The invention relates to the art field of machines for the manufacture of jewelry, and has as its object the embodiment of a machine and the provision of a method that will permit embellishing precoined metal strip, using either continuous stock or discrete lengths. Such a machine makes use of a support on which to position the strip, a packing medium with which to bolster the coined imprints and protect the support, a method for tensioning the strip, and tools, and enables crafting of the embellishment quickly and economically by virtue of the design of the support, which is substantially circular, split into identical and symmetrical halves, and composed of a base and an intermediate layer. This intermediate layer is embodied in an insulating material, and incorporates open-topped channels which accommodate small-bore tube for the circulation of refrigerant and is covered over by a permeable barrier strip.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: July 5, 1988
    Inventor: Tizzi Valtiero
  • Patent number: 4610747
    Abstract: Metal strips or foils more than 800 mm wide are brought to an end temperature of C. by stepwise heating. The strips or foils are deflected at an angle (.alpha.) of C. over 2 to 6 rolls set at increasing temperatures in the direction of throughput, at least the last roll having a double outer layer that can be heated, and the last roll being set at the final, desired temperature. The increases in temperature from one roll to the next lie between and C., preferably between and C. Usefully all the increases are the same. The process according to the invention is employed in the manufacture of composites and in the laminating and lacquering or painting of metal strips or foils.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: September 9, 1986
    Assignee: Swiss Aluminium Ltd.
    Inventor: Rene Bregenzer
  • Patent number: 4580336
    Abstract: A slitting apparatus for an amorphous metal strip employs a scribing tool to form a scribed line in a surface of the strip as it is transported past the scribing tool. The scribed strip is folded toward the scribed line and creased between mandrels. Then the crease is flattened out against a flattening surface, whereupon the strip cleanly separates into first and second strips. A separating device downstream of the flattening surface moves the newly separated edges apart. A functional relationship between at least some of the radius of the cutting edge of the scribing tool, the scribing force, the tension in the strip and the separating device is described and empirical methods for maintaining these elements with effective operating ranges are given.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: April 8, 1986
    Assignee: General Electric Company
    Inventors: Barry W. Kerley, James W. Morton, Bruce R. Watson
  • Patent number: 4566954
    Abstract: A method of and apparatus for effecting slitting rolling on a steel sheet, wherein a wide steel sheet is slit in the breadthwise direction into a plurality of steel sheets having smaller width and the slit steel sheets are moved in the breadthwise direction to form and maintain a predetermined distance therebetween. The steel sheets are then rolled independently to have edge drops on both breadthwise ends thereof, and, thereafter, the slit steel sheets having edge drops are subjected to a plating step. According to the invention, it is possible to obtain plated steel sheet product of high quality by slitting rolling.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: January 28, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Tadahiko Nogami, Tadashi Nishino
  • Patent number: 4552299
    Abstract: In the production of metal- and other strip materials in continuous lengths and in several operations or processing facilities, such strip is wound into coils of finite length after each operation, then transported to the next operation and again welded into one continuous web, coil after coil.In order to avoid this wasteful practice a method and apparatus is disclosed which consists in feeding said strip emerging from one operation, without cutting it, directly into a variable capacity accumulator and feeding it out again from said accumulator into the apparatus of the following operation at the speed that such operation requires.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: November 12, 1985
    Inventor: Tadeusz Sendzimir
  • Patent number: 4523364
    Abstract: An apparatus and method for high speed production of a multiple gauge metal strip product having a configuration with a transverse variable thickness are described. A milling machine cuts away at least approximately 75% of the total volume of metal to be removed from the surface of the initial strip of metal. This forms a pattern corresponding to the multiple gauge surface desired in the strip product. Then, the milled strip is passed into a shaving device which is located in axial alignment with the milling device. The shaving apparatus shaves off a maximum of about 25% of the total volume of metal to be removed from the surface of the milled strip in a single shaving pass to substantially form the desired configuration of the strip product.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: June 18, 1985
    Assignee: Olin Corporation
    Inventors: Harold H. Laws, Bart P. Caruso, James G. Hascall
  • Patent number: 4457160
    Abstract: In an automatic punching and bending machine the interspace between the bending device and the punching device is adjustable in order to make the interspace as small as possible and to adjust that interspace in dependence on the length of the working piece of a band material, thereby gaining the advantages that series of different work pieces of high precision can be produced in the same machine. The bending device is removable and can easily be replaced by another one which has been reset in a preceding working process. Therefore standstill periods of the machine are reduced.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: July 3, 1984
    Inventor: Adolf Wunsch
  • Patent number: 4179789
    Abstract: A piston-type safety lock device, of the type comprising a cylindrical rotor journalled in a cavity of a stator. Said rotor contains a plurality of radially slidable pistons cooperating at their inner end with the notches of a key for bringing their other end flush with the periphery of said rotor. Said other end bears against the inner surface of the cavity in which the rotor is journalled and, for one angular position of the rotor, against pistons slidable in the stator and elastically biased toward the rotor. Said pistons of the stator and rotor are flat blanked members. Said pistons are disposed respectively in a single slot of the stator and in a single slot of the rotor and have rectilinear and parallel lateral edges which are in contact with the lateral edge of an adjacent piston or the end of said slot.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: December 25, 1979
    Assignee: Neiman S.A.
    Inventor: Paul Lipschutz
  • Patent number: 4147582
    Abstract: An apparatus for the continuous production of prefabricated insulating panels is provided, which includes a feeding station for a lower metal sheet and for an upper metal sheet, a rolling-mill train for shaping the sheets, a furnace for heating the sheets, a device for injecting expandable plastic material between the sheets, a joining unit for joining the sheets together and for holding the expanded plastic material in place, and a cutter for cutting the finished panels. The joining unit has two, link-type upper and lower conveyors for the sheets shaped by the rolling-mills, at least one of which is adjustable, so that the distance between them may be regulated according to the thickness of the panel, with the conveyors being arranged to revolve continuously around rollers which rotate about a horizontal axis. An article produced by the apparatus is also provided.The present invention relates to an apparatus for producing insulating panels and the panels produced thereon.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: April 3, 1979
    Inventor: Giuseppe Brollo
  • Patent number: 4130933
    Abstract: The present invention relates to a new and improved apparatus for the high speed and continuous forming of parts requiring a protective plastic coating to be deposited over a portion of such parts.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: December 26, 1978
    Assignee: Arco Industries Corporation
    Inventor: Carl J. Demrick
  • Patent number: 4106168
    Abstract: A ball cage retainer of the type including a pair of coextensive strips having annular pocket portions defined by truncated angular flanges to define ball retaining pockets for rotatably retaining balls between the strips with the strips spot welded together and a method and apparatus for assembling such a ball cage. The ball cage is utilized in a conduit of a motion transmitting remote control assembly for facilitating the movement of a motion transmitting core element within the conduit. The cage is assembled by indexing a pair of metal ribbon-like strips successively through a plurality of stations by two sets of fixed and movable clamping assemblies. The pocket portions, and alignment notches adjacent the pocket portions, are simultaneously formed in each of the strips at a first station as the strips pass through the first station in parallel relationship to one another. One of the strips passes through a second station and balls are placed in each of the pocket portions of that strip.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: August 15, 1978
    Assignee: Teleflex Incorporated
    Inventor: William H. Parsons
  • Patent number: 4094049
    Abstract: A rolling mill structure is provided especially for wire and like products having a continuously operating casting unit providing a cast metal strand and a rolling mill receiving the strand, the rolling mill being installed on a sliding carriage that is capable of moving in and counter to the direction of rolling at a velocity (V.sub.W) between zero and approximately the maximum velocity (V.sub.G) of the casting strand emerging from the casting arrangement.
    Type: Grant
    Filed: August 20, 1976
    Date of Patent: June 13, 1978
    Assignee: Friedrich Kocks GmbH
    Inventor: Ali Bindernagel
  • Patent number: 4086689
    Abstract: A continuous cold reduction mill for metal strip in which the trailing end of a metal strip passing through the mill is welded to the leading end of a metal strip coming off a new coil without stopping the mill, the trailing end portion of the metal strip passing through the mill being paid out from a metal strip storage system during the welding operation with a resulting loss of close control of the lateral metal strip position at the entry side of the first mill stand, the present invention providing means associated with a metal strip back tensioning unit ahead of the first mill stand for correcting the lateral position of the metal strip issuing from the metal strip storage system while applying the tension of the metal strip in the metal strip storage system to the metal strip entry side of the back tensioning unit.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: May 2, 1978
    Assignee: National Steel Corporation
    Inventor: Judson W. Martt
  • Patent number: 4084301
    Abstract: Apparatus is supported by one end of a line of rails for feeding metal bars from a coil lengthwise into parallel longitudinal slots in the rails to form continuous straight electrical conductors. The feeding apparatus includes a plurality of staggered straightening rolls for straightening the conductor bar as it is pulled from the reel for feeding it into the slot in line with the apparatus, the apparatus being adjustable transversely of the rails to locate it in line with the different slots.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: April 18, 1978
    Assignee: U-S Safety Trolley Corporation
    Inventor: Donald R. Ross
  • Patent number: 4010524
    Abstract: There is disclosed a manufacture of a continuous hinge. The process is as follows. A metal strip is fed intermittently by a predetermined length towards a press-machining station where the strip is simultaneously cut and bent to form a hole, flap, swaged flap and loop during the stoppage of the strip. The strip having loops is cut into predetermined length to form leaves for a hinge. A pair of leaves are assembled by inserting a pintle through the aligned loops, and the assembly is reformed by roll means.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: March 8, 1977
    Inventors: Akashi Osamu, Nakamura Masazo
  • Patent number: 3977060
    Abstract: Apparatus for loading a medical needle holder with a filter element consisting of a filament yarn, comprising a transport tube having yarn inlet and outlet ends, a yarn feed means for feeding a continuous filament yarn into the transport tube through the yarn inlet end thereof, yarn measuring and cutting means operative to cut the conveyed yarn in a predetermined length, needle holder retaining means for positioning a needle holder at the yarn outlet end of the transport tube and yarn transfer means for moving the cut segment of the yarn into a predetermined transitive position and from the transitive position into the needle holder.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: August 31, 1976
    Assignee: Ishikawa Manufactory Company, Limited
    Inventor: Soji Ishikawa
  • Patent number: 3974552
    Abstract: A three-dimensional sign character is formed with improved circumscribing opaque metal sheet strip siding. The sign, typically having an interior light source, includes a translucent plastic face circumscribed by opaque sheet metal strip siding. The sheet metal strip siding includes a plastic strip bonded directly by gluing to a freshly abraded band on the sheet metal strip. Convolute folds are formed on either side of the sheet metal strip. One convolute fold is formed adjacent an edge of the plastic strip so as to extend angularly above and abut the plastic stripping to function as a light stop. The secured plastic strip serves as the bonding point to the translucent face of the sign.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: August 17, 1976
    Assignee: LET-R-EDGE Of Canada Ltd.
    Inventors: Robert W. Minogue, Lloyd E. Troyer
  • Patent number: RE33606
    Abstract: A power transmitting belt manufacture wherein belts are molded to have various cross sections. The belts are machined to a desired cross section. Each belt is entrained about drive and driven pulleys to run the belt under a preselected tension. At least one roller is caused to engage the back surface of the driven belt to reinforce the otherwise unsupported belt at the point of cutting between drive and driven pulleys. A pair of opposed cutting blades are engaged with the opposite sides of the belt to form the opposite side edges of the final belt section.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: June 11, 1991
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yoshihiko Kamiyama, Misao Fukuda, Akihiro Nagata