To Stop Operation Of Complete Machine Patents (Class 156/352)
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Patent number: 5534105Abstract: A method and apparatus for impermeably sealing microencapsulated or other scent slurry during the printing process. The method comprises the application of an impermeable overlay sheet over the scent slurry on a continuous web of material, using double-sided tape or other adhesive means along the periphery of the overlay sheet. Preferably an impermeable metallic foil is used for the overlay, but other impermeable sheet material (e.g., plastic sheet) may be used. The apparatus continually feeds and applies the impermeable overlay sheet also disclosed. A second, similar apparatus may be provided to mirror the first apparatus, in order to apply a second impermeable overlay sheet to the opposite surface of the scent slurry coated web, thereby preventing bleed through of the scent and/or other chemicals.Type: GrantFiled: June 9, 1994Date of Patent: July 9, 1996Inventor: Craig A. Boyd
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Patent number: 5525186Abstract: A wafer is used in a device for the selective connecting and disconnecting of plastic tubes. The wafer is in the form of a heated plate having an outwardly extending scoop on each side thereof. The wafer also includes a generally straight line horizontal slit extending through the plate from the trailing downstream edge inwardly. In order to assure single use usage of the wafer, an aperture is provided through the wafer with the aperture being covered by a sensing material. A sensor in the device will inactivate the device if the sensing material is not detected.Type: GrantFiled: August 15, 1994Date of Patent: June 11, 1996Assignee: Denco, Inc.Inventors: Ivars V. Ivansons, Valdis Ivansons, Dudley W. C. Spencer
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Patent number: 5507907Abstract: A sensor system for use with a taping head of a box sealing machine includes a tape dispensing sensor and an box presence sensor. The tape dispensing sensor is positioned along the tape guide path of the taping head for determining whether tape is being dispensed from the taping head and for providing a positive response if tape is being dispensed. The box presence sensor is positioned on the taping head for detecting movement of an element of the taping head that reacts to the box being moved along the taping head and for providing a positive response if a box is present. A control system is provided and is connected to the tape dispensing sensor and the object presence sensor for determining a potential error condition if only one of the tape dispensing sensor and the object presence sensor provides a positive response. Preferably, three sensors are utilized in the sensor system. One senses tape dispensing, another senses a box presence, and yet another senses tape supply left on the roll.Type: GrantFiled: October 26, 1994Date of Patent: April 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Karl M. Kropp, Dale A. Johnson, Daniel D. Baker
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Patent number: 5387302Abstract: A method of automatically and continuously labelling articles such as fruit or vegetables. The method consists in placing said articles in indented trays having parallel rows of indentations, in disposing the trays in single file on a continuously moving conveyor, said rows being disposed perpendicularly to the advance direction of the conveyor, and in moving at least one labelling head over a row of indentations with composite rectilinear translation motion resulting from longitudinal advance motion corresponding to that of the conveyor combined with transverse motion such that a label is placed successively on each article in said row, and then in renewing said operation for each of said rows. The invention also provides apparatus for implementing the method.Type: GrantFiled: October 8, 1993Date of Patent: February 7, 1995Assignee: DISPACInventors: Jacques Bernard, Laurent Koenig
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Patent number: 5366433Abstract: A safety clutch which has a steel ball which is adapted to move from half in a hemispherical recess in its drive plate and half in a cylindrical hole in its driven plate to a position completely in the cylindrical hole. A conveyor conducts milk or like cartons to a point where caps are ultrasonically welded to the inside of the foldable tops of the cartons. The safety clutch discontinues power in the event of an overload.Type: GrantFiled: June 24, 1993Date of Patent: November 22, 1994Inventor: Charles M. McCormick
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Patent number: 5188687Abstract: A labeling method and assembly for automatically applying a price-printed label onto an article having an outer surface. The assembly comprises an alignment mechanism for disposition of an article in a predetermined position within a label-receiving work station. A first sensing element is located to recognize the presence of the article disposed adjacent the alignment mechanism. A label transport arrangement carries a price-printed label from a home position at the label printer to a label-applying position adjacent the outer surface of the article. The first sensing element activates an initiating mechanism for activating the label transport arrangement. A second sensing element recognizes when the label transport arrangement has applied the price-printed label to the outer surface of the article. A retracting mechanism responsive to the second sensing element returns the label transport arrangement to the home position.Type: GrantFiled: March 6, 1991Date of Patent: February 23, 1993Assignee: Labelmatic, Inc.Inventor: Morton S. Baum
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Patent number: 5183526Abstract: An apparatus and method are provided for facilitating manual feeding of business forms into business forms handling equipment to bypass the automatic feeder, primarily in the production of mailers from forms having pressure sensitive adhesive strips. Mounted at the interface between the conveyor and folder of the handling equipment is a transparent plastic plate having a slot with forms guides, and a forms centering scale adjacent the slot. A finger opening in, and an upstanding finger tab on, the quadrate plate may be provided to allow it to be lifted out of place covering the interface area between the conveyor and folder. An interlock engaging projection is provided on the plate for stopping operation of the equipment when it is removed. One may bypass the automatic feeding of the conveyor by manually inserting forms into the slot guided by the forms guides.Type: GrantFiled: September 26, 1991Date of Patent: February 2, 1993Assignee: Moore Business Forms, Inc.Inventor: George E. Walter
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Patent number: 5080747Abstract: Heated seal bars are located on opposite sides of an elongated strip of heat sealable material adapted to be advanced with a step-by-step motion. When the strip dwells, the bars are shifted linearly inwardly into engagement with the strip to form a heat seal and then are retracted linearly a short distance away from the strip to permit the strip to advance through its next step. If an abnormal condition prevents the strip from advancing, the bars are retracted linearly to a parked position in which the bars are spaced a substantial distance away from the strip in order to prevent the heat radiating from the bars from damaging the stopped strip.Type: GrantFiled: May 7, 1990Date of Patent: January 14, 1992Assignee: Klockner Bartelt, Inc.Inventor: Scott J. Veix
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Patent number: 5057180Abstract: An apparatus for feeding a preferably multi-ply web of synthetic thermoplastics comprises a pair of feed rolls, which define a feeding nip and each of which is formed with annular grooves, and two scraping rakes, which are secured in the frame and have tines extending through the annular grooves, wherein at least one of said rakes is movably mounted and arranged to actuate a switch for stopping the drive for the rolls when the scraping rake is moved out of its normal position by the web because it is bulged. It is intended so to improve such an apparatus that the switch will be operated even by relatively small bulges formed in the web. That object is accomplished in that each scraping rake is guided to be movable in the direction of travel of the web. A scraping rake for actuating the switch can be moved by a much weaker force if the rake is displaced in the direction of travel of the web rather than being pivotally moved.Type: GrantFiled: November 27, 1989Date of Patent: October 15, 1991Assignee: Windmoller & HolscherInventor: Gunter Mattiebe
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Patent number: 4906318Abstract: An auxiliary film is applied or fused to a slide fastener chain having a pair of intermeshing rows of coupling elements with an element-free space defined therein. The slide fastener chain is fed by a chain feeder along a feed path. The device for applying the auxiliary film includes an ultrasonic horn disposed above the feed path, a holder disposed below the feed path and movable toward and away from the ultrasonic horn, a stopper disposed in the holder and movable into the element-free space of the slide fastener chain, an anvil disposed in the holder and movable toward and away from the ultrasonic horn, and a feed roller assembly for supplying an elongate auxiliary film onto the anvil. A sensor roller is mounted on the holder for pressed engagement with the elongate auxiliary film, the sensor roller having a plurality of circumferentially equally spaced controlling elements.Type: GrantFiled: August 3, 1988Date of Patent: March 6, 1990Assignee: Yoshida Kogyo K. K.Inventor: Kunio Miyazaki
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Patent number: 4855006Abstract: A taping unit, included in a taping machine for sealing cardboard boxes, equipped with a control system of the tape supplied to a box to be sealed. The control system is of the pneumatic type and includes a timer piloted by a sensitive member which works together with a cam-shaped element rotated by the tape and formed so as to cause the commutation of the sensitive member at least once for each rotation of the cam-shaped element. The timer is adjusted so as to generate a warning signal on each occasion on time interval goes by that is longer than a predetermined limit between one commutation of the sensitive member and the next. The warning signal can be used to cause stoppage of the machine.Type: GrantFiled: April 6, 1988Date of Patent: August 8, 1989Inventor: Augusto Marchetti
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Patent number: 4846921Abstract: A machine is provided for applying vertical tape courses to the ends of cartons. Cartridges carrying taping members are stroked downwardly to tape the cartons. Return or upwardly directed travel of the cartridges is either delayed while a taped carton is off-feeding from the machine or the taping arms and cutter in the cartridge are retracted to allow the cartridge to be immediately returned upwardly following taping. This precludes cartridge travel interfering with carton off-feed or carton entry to the taping station.Type: GrantFiled: November 6, 1987Date of Patent: July 11, 1989Assignee: The Loveshaw CorporationInventors: Joseph S. Lerner, David Krukas, Steven C. Novak
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Patent number: 4834827Abstract: Apparatus for welding sheets (3a,3b) of thermoplastic material together along proximate edges including a supporting frame (25), a pair of joining rollers (11,13) mounted on the frame and forming a nip (12) with an axis parallel to the axes of the rollers, a motor (23) to drive at least one of the rollers, a horn (15) having a tip (17), and an ultrasonic transducer (39) to reciprocate the horn (15) and tip (17) in the direction of the longitudinal axis of the horn (15), the horn being so positioned in the nip (12) that the tip reciprocates in a direction transverse to the axis of the nip (12), so that proximate edges of the sheets (3a,3b) may move through the nip (12) with one edge on each side of the tip (17), be uniformly melted on their surfaces by frictional energy created by the reciprocal motion of the tip (17), and then be pressed and welded together in the nip (12). Fault detection circuitry stops the operation if the sheet material is not properly overlapping or if it runs out.Type: GrantFiled: December 10, 1987Date of Patent: May 30, 1989Inventor: Edward G. Obeda
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Patent number: 4812347Abstract: A method of manufacturing a tape of sequential, framed photographic slide in which at least one side of each frame not containing picture information is removably fixed by an adhesive to a continuous tape which moves rectilinearly in a direction parallel to said side.Type: GrantFiled: July 2, 1987Date of Patent: March 14, 1989Inventor: Petrus J. L. C. van Ulden
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Patent number: 4738735Abstract: A method for continuously extruding an elastomeric material on the interior of a continuous tubular woven fabric in a loom, comprising motive means for creating relevant movement between the extruder and the woven fabric, sensing means for detecting stoppage of said loom, control means responsive to said sensing means directing said motive means to move said extruder relative to said woven fabric and a tubular woven fabric having an interior layer extruded directly onto the interior of the tubular woven fabric.Type: GrantFiled: November 5, 1986Date of Patent: April 19, 1988Assignee: Mercedes Textiles LimitedInventors: Helmut Joncker, Richard J. McAlpine
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Patent number: 4680078Abstract: A hand-held labeler, particularly a labeler employing a thermographic print head, utilizes improved control circuitry for accurately sensing the position of the web and controlling the operation of the print head in order accurately to control the position of the imprints on the web. When a motor is used to advance the web, the control system is operative to control the operation and speed of the web advancing motor.Type: GrantFiled: October 28, 1985Date of Patent: July 14, 1987Assignee: Monarch Marking Systems, Inc.Inventors: James L. Vanderpool, James M. Bain
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Patent number: 4650535Abstract: An improved L-sealing apparatus providing an L-shaped sealing bed assembly mounted at its ends and corner on three piston-and-cylinder assemblies operable upon closing of the sealing arm into adjacency with the sealing bed assembly to translatorily move the sealing bed assembly into uniform and continuous surface contact and pressure with the heating wire arrangement of the sealing arm. In another embodiment, the sealing bed assembly is fixed to the machine frame and a pair of pneumatic-electromagnetic latching assemblies are provided to magnetically engage the sealing arm at its opposite ends in its sealing disposition adjacent the sealing bed assembly to torsionally distort the sealing arm if and as necessary to bring its wire heating assemblies into parallel continuous and uniform surface contact and pressure with the sealing bed assembly.Type: GrantFiled: August 13, 1985Date of Patent: March 17, 1987Assignee: Creative Packaging Machinery, Inc.Inventors: Charles J. Bennett, Terry F. Hinson
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Patent number: 4642154Abstract: A heating wire embedded in any one of several types of shaped elements is fed current by an electrical control apparatus for a time interval which is a function of the ohmic resistance of the wire and the type of shaped element. The type and resistance are automatically determined in advance by measurement of the wire impedance which indicates type and of the ohmic resistance. Welding time is selected from a predetermined directrix depending on resistance, and the directrix itself is chosen on the basis of type by the impedance measurement. A count representative of the time is stored in a counter and pulsed down to zero while current is delivered.Type: GrantFiled: December 15, 1982Date of Patent: February 10, 1987Assignee: Georg Fischer AktiengesellschaftInventors: Alfred Thalmann, Ernesto Lehmann, Emil Roth, Walter Gerber
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Patent number: 4632718Abstract: The invention proposes a device designed for separating IC lead frames, boards, etc., piece by piece, and loading them continuously, and composed of a work stocker which holds laminated work of strips; a work-pressing mechanism which continuously presses the work within the work stocker; a separating mechanism which strips away the laminated work piece by piece from the lowest part thereof; and a pusher mechanism which pushes outside the stripped work from the work stocker; and wherein the separating mechanism is installed with a detector which finds out double sheets of the strips and stops operation of the pusher; and the separator is installed at its work exit end with a positioning pin of go-in-and-out of a taper shape which positions end points of the work pushed out by the pusher.Type: GrantFiled: February 11, 1986Date of Patent: December 30, 1986Assignee: Seiei Kohsan Co., Ltd.Inventor: Katsuo Shimizu
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Patent number: 4620888Abstract: An apparatus and method for applying tubular labels to a product container at a labeling station including a reciprocally movable labeling assembly. The assembly is adjustably secured to carriage that is mounted for reciprocating movement at the labeling station. A drive system including a drive cam defining an asymetrical profile is operatively coupled to the carriage by a lever arrangement including a cam follower driven by the drive cam. The profile of the drive cam is configured to have a steep rise and a gradual drop so that the average speed at which the labeling assembly is driven through a label applying strobe is substantially less than the speed at which the assembly is driven through a return stroke thus reducing the stress applied to the label as it is installed. A fluid pressure operated actuator pressurized to a first predetermined pressure exerts a biasing force on the lever to urge the cam follower into contact with the drive cam.Type: GrantFiled: September 4, 1984Date of Patent: November 4, 1986Assignee: Automated Packaging Systems, Inc.Inventors: William M. Easter, Eric Gifford, Rick S. Wehrmann, Dana Liebhart
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Patent number: 4581094Abstract: This device relates to a device for suction-sticking display labels, in which display labels without being printed have been stuck contiguously in many number onto a long ground sheet which is wound on a feeding reel, the labels are peeled by a peeling metal fitting after they are printed, the ground sheet only is wound on a winding reel, the display labels are adsorbed by a suction bracket which is provided in front of the peeling metal fitting being drawn by the air intaken by the intake/exhaust duct of the sticking device, and the display labels are stuck by the blow of air onto predetermined positions of package trays that come beneath the sticking device. In particular, this device relates to a device for suction-sticking display labels, in which the label which is peeled off from the ground sheet being adsorbed by the intake/exhaust bracket but which is still adhered at its rear end to the ground sheet, is forcibly peeled off by a proceed/rectract device together with the intake/exhaust bracket.Type: GrantFiled: January 13, 1984Date of Patent: April 8, 1986Assignee: Kabushiki Kaisha Ishida Koki SeisakushoInventor: Hirokazu Sato
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Patent number: 4574027Abstract: The invention relates to a device for attaching adhesive labels to objects comprising a rotatably mounted tubular labelling arm driven by a motor and having a suction head disposed at its free end, this suction head being directly connected via the tubular labelling arm to a vacuum source for the purpose of drawing a label by suction onto the suction head. In order to be able to use such a device, which has a high operating speed, as universally as possible, i.e. for labelling the most varied types of object, the tubular labelling arm bearing the suction head is designed to be bendably elastic and rotate in a single direction of rotation.Type: GrantFiled: December 30, 1983Date of Patent: March 4, 1986Assignee: Bizerba-Werke Wilhelm Kraut GmbH & Co. KGInventor: Hubert Weinundbrot
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Patent number: 4534817Abstract: An automatic bundle-tying tool has a compact housing with a pair of curved pincer-shaped jaws, one of which pivots outward to accommodate a bundle of wires or similar elongated objects, and then pivots inward to abut the other, fixed jaw. Plastic tying tape drawn from a storage spool is fed around the tape guide groove formed on the internal surface of each of the mating jaws, encircling the bundle. A pair of thin tapered anvils clamp the overlapped tape against the tip of an ultrasonic welding transducer, and a reverse feed mechanism draws the tape tight around the bundle while slack tape is re-wound on the storage spool by a resilient spring biased spool hub. After ultrasonic welding, automatic spring-driven linkages unclamp and withdraw the anvils, sever the tied bundle from the tape supply and open the movable jaw to release the tied bundle. A preferred embodiment is lightweight, portable and easy to operate.Type: GrantFiled: April 8, 1983Date of Patent: August 13, 1985Inventor: Denis P. O'Sullivan
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Patent number: 4439977Abstract: A method and apparatus are disclosed for making a series of coil springs pocketed within individual pockets in an elongate fabric strip comprised of two overlying plies capable of being thermally welded together. The fabric strip is fed along a guide path during which compressed coil springs are inserted between the piles with the axes of the springs substantially normal to the planes of the plies, whereafter the fabric plies are thermally welded together longitudinally and transversly to form a series of connected pocketed springs. After thermal welding, the pocketed springs are passed through a turner assembly during which the coil springs are reoriented within the fabric pockets to positions wherein the axes of the springs are transverse to the fabric strip.Type: GrantFiled: July 16, 1981Date of Patent: April 3, 1984Assignee: Simmons U.S.A. CorporationInventor: Walter Stumpf
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Patent number: 4351679Abstract: An apparatus for applying labels and/or leaflets to containers in a continuous single run operation includes a product entry station, a conveyor for transporting the containers in a horizontal position through the apparatus, applicators for applying in succession leaflets and labels to the underside and upper surface, respectively of the containers, and a product discharge station where properly processed containers are exited for further processing and improperly processed containers are rejected.Type: GrantFiled: August 8, 1980Date of Patent: September 28, 1982Assignee: Culbro CorporationInventor: Hans C. Dreher
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Patent number: 4334946Abstract: A paper splicer incorporated in a line printer of a construction, wherein paper having a series of engaging holes formed at both sides thereof is forwarded in one direction. The splicer has a paper end position detector, a paper splicing table, and a tractor having a plurality of pins to be engaged with the engaging the holes of the paper, which are arranged sequentially in contact with the lower surface of the paper. With this arrangement, a position where the last end of the paper arrives is detected by the paper end position detector, and, at the same time, the last end of the paper is stopped on the upper surface of the splicing table, and the engaging holes of the subsequent paper are engaged with the pins on the tractor, and the last end of the paper is spliced, on the splicing table, with the subsequent paper by means of an adhesive tape.Type: GrantFiled: October 8, 1980Date of Patent: June 15, 1982Assignee: Canon Kabushiki KaishaInventor: Masanobu Kanoto
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Patent number: 4330354Abstract: The invention relates to a monitoring device for automatic gluing machines, particularly for gluing metal parts. When no glue has been fed the automatic changing of a turntable, for example, supporting workpieces to be glued, is interrupted. This is accomplished by means of a probe disposed in the vicinity of the discharge opening of a glue dispensing apparatus and connected in an electric sensing and control or monitoring circuit.Type: GrantFiled: April 3, 1980Date of Patent: May 18, 1982Assignee: Triumph-Werke Nurnberg A.G.Inventors: Joachim Deubner, Franz Zeh
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Patent number: 4311176Abstract: A machine for manufacturing curvilinear convex wooden frames includes a base frame having a feeding bench mounted thereon over which is fed a continuous wooden strip which is wound up on a revolving pattern to form a rough frame of the desired thickness. The feeding bench is movable relative to the base frame and its movement is coordinated with the revolving pattern under control of a power cylinder to maintain the surface of the feeding bench tangent at all times to the revolving pattern.Type: GrantFiled: July 29, 1980Date of Patent: January 19, 1982Assignee: Closeform S.r.l.Inventor: Fiore B. Cavallarin
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Patent number: 4268341Abstract: A changeover system for a corrugator designed to halt the corrugator during the changeover to diminish paper loss. When the corrugator is halted, a traveling knife severs the combined webs adjacent the beginning of the steam table run. The slitter scorer and the cutoff are changed and the corrugator is restarted. The traveling knife which severs the combined webs may operate above the steam table or below the steam table; alternate forms may be used.Type: GrantFiled: July 12, 1978Date of Patent: May 19, 1981Assignee: S&S Corrugated Paper Machinery Co. Inc.Inventor: Paul Huhne
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Patent number: 4236954Abstract: A label applicator for an injection moulding machine which includes a suction head for picking up a label, an electrostatic charging device to electrostatically charge the label and means to reverse the suction to transfer the label to the face of a die where it is held by electrostatic forces. The label applicator also includes sensing pins which will actuate a switch to close down the injection moulding machine if the label is not correctly positioned to cover the sensing pins.Type: GrantFiled: January 18, 1979Date of Patent: December 2, 1980Assignee: Vinyl Clad Proprietary LimitedInventor: Frederick H. Edwards
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Patent number: 4116744Abstract: An apparatus associated with a tire building mandrel for controlling the movements of certain machine members in the delivery and applying of tire building stock to said mandrel. The various types of stock used in the building of a tire are stored in a servicer machine and such stock may be withdrawn and delivered to a building drum or mandrel by an operator during the assembly of a tire. The present apparatus is adapted to control and stop the rotational movements of said drum member at various points in its path of travel thereby allowing the delivery of desired stock length to the building mandrel. The tire building drum may be stopped at different points or locations in its path of travel and with respect to its starting point, the arrangement of which may be determined by the length of amount of stock being withdrawn from the servicer machine or source of supply.Type: GrantFiled: August 22, 1977Date of Patent: September 26, 1978Assignee: Cooper Tire & Rubber CompanyInventor: Raymond L. Currie
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Patent number: 4089728Abstract: Workpiece monitoring and control apparatus for a machine having a desired predetermined sequential flow of equally spaced-apart workpieces therein and being characterized by continually monitoring both the presence and absence of workpieces in such flow and operating control mechanisms for such machine, such as stopping operation of the machine or actuating a signalling device, in the event of an undesired absence or presence of a workpiece.Type: GrantFiled: May 17, 1976Date of Patent: May 16, 1978Assignee: Riegel Textile CorporationInventor: Richard K. Teed
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Patent number: 4077827Abstract: An adhesive tape applicator includes one or more tape dispensing units, of which each dispenses a continuous strip of pressure-sensitive adhesive tape which is applied progressively to the back of a continuous strip of developed photographic film prints such that it does not become detached from the back of the print strip when the two are wound spirally into a roll. This roll thereafter can be unwound and severed, using conventional paper cutters, into individual prints with adhesive tape backing. The tape backing includes a cover ply which when peeled off leaves the strip adhesive exposed for mounting the print.Type: GrantFiled: January 6, 1975Date of Patent: March 7, 1978Inventors: Herman L. Jones, John H. Haugen
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Patent number: 3989574Abstract: Automatic label applying apparatus comprises a conveyor for moving packages to a weigh scale and from thence to a label application station where a reciprocably movable vacuum type heated label applicator receives an appropriately printed label from a label issuing means and applies it to the appropriate package. A vacuum system connected to the label applicator holds the label thereon and also operates a pneumatic cylinder for a lock-out arm to prevent the heated label applicator from making contact with and burning a package when the vacuum system senses that no label is present. An electronic control system, including a photocell for sensing if a package is at the station and also including a limit switch actuated by the lock-out arm (and therefore indicative of the presence or absence of a label), operates to stop the conveyor after a predetermined interval of time in the event that a package is present at the station but no label is available to the label applicator.Type: GrantFiled: January 15, 1975Date of Patent: November 2, 1976Assignee: Sturtevant Industries, Inc.Inventor: Thomas S. Evans
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Patent number: 3981763Abstract: Apparatus for the manufacture of disposable diapers having spaced apart fastener tabs, labels or strips at predetermined locations thereon including a device for continuously moving material being manufactured into such articles through said apparatus and for applying such fastener tabs, labels or strips at predetermined locations to the moving material and having the following devices in combination therewith. Electrically operated drive devices are provided for driving the tab applying devices and the material moving devices. Sensing devices sense the passage of applied tabs on the moving material. An electric circuit is connected with the sensing devices and with the drive devices for normally operating the drive devices and is responsive to the sensing devices for stopping operating of the drive devices when the sensing devices fail to sense the passage of a tab at a predetermined location on the moving material as it passes the sensing devices.Type: GrantFiled: February 11, 1975Date of Patent: September 21, 1976Assignee: Riegel Textile CorporationInventor: Charles E. Brocklehurst