Responsive To Material-contacting Element Patents (Class 226/23)
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Patent number: 11522258Abstract: The present invention relates to an electrolyte removing device. The electrolyte removing device comprises: a jig assembly configured to receive in a seated position a pouch comprising an accommodation part in which an electrode assembly is accommodated, a gas pocket part, and a connection part connecting the accommodation part to the gas pocket part; and an electrolyte removing assembly configured to push an electrolyte remaining on the connection part to the gas pocket part to remove the electrolyte from the connection part.Type: GrantFiled: October 17, 2018Date of Patent: December 6, 2022Inventors: Seok Jin Kim, Sang Hyun Koo, Cha Hun Ku
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Patent number: 9640705Abstract: Improved methods and apparatus for forming thin film layers of chalcogenide on a substrate web. According to the present teachings, a feedback control system may be employed to measure one or more properties of the web and/or the chalcogenide layer, and to adjust one or more parameters of the system or buffer layer deposition method in response to the measurement.Type: GrantFiled: May 11, 2015Date of Patent: May 2, 2017Assignee: Global Solar Energy, Inc.Inventors: Jeffrey S. Britt, Scot Albright, Urs Schoop
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Patent number: 9546046Abstract: A conveyor belt tracking system incorporates a receiving arm secured within a conveyor belt operating system with a roller assembly. The roller assembly has an upper plate and a lower plate forming a high aspect ratio groove to receive a conveyor belt. An axle extending from the receiving arm supports the upper plate and lower plate for rotational motion.Type: GrantFiled: May 14, 2015Date of Patent: January 17, 2017Inventor: James O'Brien
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Patent number: 9096402Abstract: A sheet material supplying device includes a tension detection device that detects tensions at both end portions of the unprocessed sheet material in a widthwise direction of the sheet material; an engaging roller that engages the sheet material at a location that is upstream of the processing section in a path of the sheet material that is drawn out; a supporting mechanism that supports both end portions of the engaging roller and that is displaceably supported with respect to the frame such that an axis of the engaging roller is tiltable in a direction that crosses a sheet surface of the sheet material with which the engaging roller engages; an actuator that is connected to the supporting mechanism and that displaces the supporting mechanism; and a drive control device that controls driving of the actuator on the basis of the tensions detected by the tension detection device.Type: GrantFiled: July 9, 2013Date of Patent: August 4, 2015Assignee: TSUDAKOMA KOGYO KABUSHIKI KAISHAInventor: Isao Nishimura
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Patent number: 7618205Abstract: A web conveyance mechanism for conveying a band-type web includes: a side guide provided on one end side of the web in its width direction that guides one end of the web in the width direction which abuts on the side guide and that serves as a positional reference in the width direction for the web; an abutting unit that pushes the web to the side guide and adjusts an abutting force with which the web pushes the side guide; a measuring unit that measures the abutting force with which the web abutting on the side guide pushes the side guide; and a controller that adjusts the abutting unit so as to obtain a desired abutting force based on a result of detection by the measuring unit.Type: GrantFiled: April 7, 2006Date of Patent: November 17, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Keijirou Hamaba, Yoshihisa Takanozawa, Yukihide Toda
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Patent number: 7429310Abstract: A paper or board machine has a fabric (10) that is adapted mobile as well as rolls (11, 11?) arranged to support the fabric (10). The fabric (10) is tensioned by changing the position of one roll (11?) of the rolls (11, 11?). Correspondingly, the fabric (10) is guided by changing the alignment of one roll (11?) of the said rolls (11, 11?). Surprisingly the fabric (10) is both tensioned and guided by changing the alignment and position of only one and the same roll (11?). In addition, the wrap angle of the fabric (10) at this roll (11?) is set higher than 30°.Type: GrantFiled: May 4, 2004Date of Patent: September 30, 2008Assignee: Metso Paper, Inc.Inventors: Pertti K. Heikkilä, Erkki Kärkkäinen, Erkka Nieminen, Samppa J. Salminen, Veli-Matti Vainio
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Patent number: 6972074Abstract: Equipment for fabric guiding in a paper machine has a fabric (10) and rolls (12–18) adapted to support it. In connection with the roll (17) end there is arranged equipment comprising a stand (19) and a nip guard (26). The stand (19) includes a transfer base (20) as well as transfer equipment (22) for moving the transfer base (20). The equipment further comprises an edge detector (23) for the roll (17) arranged on the opposite side of the fabric (10), for which edge detector there is a vertical bracket (25) arranged in the stand (19). The vertical bracket (25) and the nip guard (26) form an integrated sheet-metal construction.Type: GrantFiled: October 28, 2003Date of Patent: December 6, 2005Assignee: Metso Paper, IncInventors: Ville Nenonen, Samppa J. Salminen, Risto Väätänen
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Method and device for reeling up in the proper position a hot-rolled strip in a reeling installation
Patent number: 6874724Abstract: The invention relates to a method and a device for the positionally correct winding up of a metal strip in a coiling device, the hot strip being fed to the coiling device by a driving device with driving rollers, the driving rollers being tiltable in relation to one another by a controller by means of actuators for changing the gap between the driving rollers, and the controller being fed the position of the edge of the hot strip upstream of the driving device as a measured variable and as a setpoint reference variable, an optimization of the winding result of the rolled strip coil being achieved by the surface geometry of the rolled strip being determined as a measured variable and fed to the controller.Type: GrantFiled: March 22, 2001Date of Patent: April 5, 2005Assignees: BFI VDeh-Institute fur angewandte Forschung GmbH, Thyssen-Krupp Stahl AGInventors: Ulrich Muller, Andreas Wolff, Gerd Thiemann, Michael Degner -
Patent number: 6866176Abstract: A self-tracking roller for centering conveyor belts and web materials on conveyor systems having a guide wheel at each end of a centrally pivoting shaft for contacting the belt or web. The self-tracking roller will pivot in the direction of travel of the belt or web along the side contacted and redirect the belt or web to a central or neutral position by the pivoting action of the roller.Type: GrantFiled: September 11, 2001Date of Patent: March 15, 2005Inventor: Jack C. Harris
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Patent number: 6830212Abstract: A web tracking and repositioning apparatus having at least one pivoting conveyor roll pivotable and rotatably supported at its center about a bearing assembly through which extends a longitudinal fixed shaft with said bearing assembly connecting to a coaxially mounted sleeve positioned at its weighted center about the bearing assembly, extending outward toward fixed support members, and interconnected to a pair of guide members or cams mounted about the fixed shaft, whereby cooperative engagement of the pivoting cylindrical sleeve and the guide members eccentrically mounted about the shaft at the opposite ends of the sleeve which cooperatively engage end cap members via a pin and an elongated slot causes a web of material conveyed over the conveyor roll to be steered centrally following misalignment due to uneven tension in the conveyed web of material.Type: GrantFiled: November 9, 1999Date of Patent: December 14, 2004Inventor: Jack C. Harris
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Patent number: 6641017Abstract: Process for handling a material web that includes moving the material web along with at least one circulating endless belt in a circulation direction, monitoring movement of an edge of said at least one circulating endless belt, and monitoring a position of said at least one circulating endless belt in a transverse direction by way of at least one belt travel sensor. The at least one belt travel sensor has a belt engaging surface which engages the edge of the at least one circulating endless belt. The process further includes driving repeatedly the at least one circulating endless belt in a direction generally transverse to the circulation direction utilizing the at least one belt travel sensor to generate linear transverse movement of the at least one circulating endless belt.Type: GrantFiled: March 11, 2002Date of Patent: November 4, 2003Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Günther Hüttelmaier, Jürgen Birk, Reinhard Faix
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Patent number: 6627044Abstract: The invention concerns a guide (10) for the web, such as the wire or felt, in a paper machine/board machine. The guide is formed by a bearing housing (12) at one end of a guiding roller (11) in such a way that the bearing housing (12) includes a curved surface as the rolling surface (13). An actuator (14) is adapted to roll the bearing housing along a stop face (T1), whereby by using the actuator (14) an essentially linear transfer is given to a shaft stub (11a1) pivoted by a bearing (15a1) in the bearing housing (12).Type: GrantFiled: February 9, 2001Date of Patent: September 30, 2003Assignee: Metso Paper, Inc.Inventors: Jari Suortti, Ville Nenonen, Risto Väätäinen, Erkki Kärkkäinen, Kari Paloniemi, Samppa J. Salminen
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Patent number: 6450382Abstract: The problem to be solved by this invention is a conventional printing web position adjusting apparatus poses a problem in which angularly displacing means having excellent accuracy is difficult to install, large power is needed, fabrication cost is high, an adjustment result cannot be detected since a side edge position is detected on an inlet side of the apparatus and space saving cannot be achieved. A printing web position adjusting apparatus for adjusting a side edge position of printing web to a previously,determined position based on an output signal of an edge sensor provided on a downstream side of the apparatus by angularly displacing integrally two of guide bars provided between two guide rollers orthogonal to a travelling direction of printing web and in parallel with each other and respectively having different angular displacement centers arranged such that printing web is made to wrap over substantially 180 degree of peripheral faces thereof while maintaining parallelism therebetween.Type: GrantFiled: November 28, 2000Date of Patent: September 17, 2002Assignee: Tokyo Kikai Seisakusho, Ltd.Inventor: Kinichiro Ohno
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Publication number: 20020088838Abstract: Process for handling a material web that includes moving the material web along with at least one circulating endless belt in a circulation direction, monitoring movement of an edge of said at least one circulating endless belt, and monitoring a position of said at least one circulating endless belt in a transverse direction by way of at least one belt travel sensor. The at least one belt travel sensor has a belt engaging surface which engages the edge of the at least one circulating endless belt. The process further includes driving repeatedly the at least one circulating endless belt in a direction generally transverse to the circulation direction utilizing the at least one belt travel sensor to generate linear transverse movement of the at least one circulating endless belt.Type: ApplicationFiled: March 11, 2002Publication date: July 11, 2002Applicant: VOITH SULZER PAPIERTECHNIK GmbHInventors: Gunther Huttelmaier, Jurgen Birk, Reinhard Faix
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Patent number: 6402005Abstract: Process and device for handling a material web. The process includes moving the material web, at least in stretches, along with at least one circulating endless belt in a circulation direction and monitoring the movement of the edge of the at least one circulating endless belt. The process further includes driving repeatedly the circulating endless belt in a direction generally transverse to the circulation direction. The device includes at least one circulating endless belt for moving the material web along, at least in stretches, in a circular direction, and a master control unit for determining the transverse movement of the circulating endless belt. Additionally, the device includes at least one belt travel sensor for monitoring the position of the at least one circulating endless belt and repeatedly moving, in cooperation with the master control unit, the at least one circulating endless belt generally transverse to the circulation direction, and an activation device, for moving the sensor.Type: GrantFiled: November 8, 1999Date of Patent: June 11, 2002Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Günther Hüttelmaier, Jürgen Birk, Reinhard Faix
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Patent number: 6371347Abstract: An air switch including a housing, a lubrication port, a first air inlet port and an exhaust port is disclosed. The housing includes a chamber. The lubrication port is disposed to deliver lubrication into the chamber. The first air inlet port is disposed to introduce air into the chamber. The exhaust port is disposed to exhaust the lubrication and air from the chamber.Type: GrantFiled: March 9, 2000Date of Patent: April 16, 2002Inventor: Ronald Melvin Gilbertson
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Patent number: 6312562Abstract: A traveling screen system has a traveling screen guided about a multiplicity of support and guide rollers. A scanning device scans a transverse position of the traveling screen and an adjusting device adjusts the angular orientation of at least one of the support and guide rollers. The adjusting device is supported on one side on a displaceable bearing block which is supported on a carriage. Between the control device for the bearing block of the displaceable roller and the scanning device, a coupling is provided by which a return of the control motion of the roller to the scanning device is effected. The coupling is formed by a Bowden cable, by a hydraulic circuit with control cylinders, or by an electric circuit with control devices.Type: GrantFiled: October 29, 1999Date of Patent: November 6, 2001Inventors: Klaus Bartelmuss, Heinz Bartelmuss
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Patent number: 6257520Abstract: A tension determining apparatus that is arranged above cylindrical air chambers determines tensions at both edges of a web before the web enters helical routes of the cylindrical air chambers. Middle direction changing air chambers among three direction changing air chambers arranged in a row are inclined by a predetermined angle according to the difference between the tensions at both edges of the web. Therefore, a snaking and a bias of the web are reduced, and the web can run stably.Type: GrantFiled: June 6, 2000Date of Patent: July 10, 2001Assignee: Fujii Photo Co., Ltd.Inventor: Daisuke Fujikura
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Patent number: 6105899Abstract: A web tracking and repositioning apparatus having at least one pivoting conveyor roll pivotable and rotatably supported at its center about a bearing assembly through which extends a longitudinal fixed shaft with said bearing assembly connecting to the conveyor roll positioned at its weighted center about the bearing assembly and extending outward toward fixed support members and extending through a pair of oppositely exposed guide blocks pivotally mounted to the support members whereby cooperative engagement of the pivoting conveyor roll and the guide blocks coaxially mounted at the opposite ends of the conveyor roll a web of material conveyed over the conveyor roll is steered centrally following misalignment due to uneven tension in the conveyed web of material.Type: GrantFiled: January 7, 1999Date of Patent: August 22, 2000Assignee: Visionary Solutions, LLcInventor: Jack C. Harris
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Patent number: 6013212Abstract: A method of controlling lateral wandering of flattened tubular plastic film in gauge distribution apparatus in which gauge distribution is effected by passing a flattened tubular plastic film around at least one turning bar whose position with respect to the film is varied. The method comprises adjusting the position of a turning bar in response to a signal from the sensor which senses the position of one of the side edges of the flattened film before it is wound on a storage roll. When lateral wandering of the flattened tubular film is sensed, the position of the turning bar is varied until the sensor detects that the film has returned to its desired path.Type: GrantFiled: June 5, 1998Date of Patent: January 11, 2000Assignee: Macro Engineering & Technology Inc.Inventors: Mirek Planeta, Peter V. Tkach
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Patent number: 5893021Abstract: In a continuous form printer, a passage of the leading edge of the sheet is detected by a top sensor located along a feeding path thereof. If the top sensor detects the leading edge of the sheet while the sheet is fed in a reverse direction, the control unit of the printer determines whether the detection of the leading edge by the top sensor is correct or not, by feeding the sheet once in the forward direction and then feeding the sheet in the reverse direction and by checking whether the top sensor again detects the leading edge of the sheet being fed in the reverse direction.Type: GrantFiled: August 25, 1997Date of Patent: April 6, 1999Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tsukasa Yanashima
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Patent number: 5664738Abstract: A positive pressure operated control apparatus for lateral alignment of a continuous web of paper, plastic, textiles and other materials which are being processed at windup, unwind, printing, coating, folding and slitting stations, or other intermediate points in the machine process. The apparatus includes an air source communicating with a combination sensor and controller which regulates a double-acting air actuator having an output member to move a web positioning assembly. The controller is regulated by a sensor paddle which is spring loaded to be maintained in engagement with the web edge. As the web wanders or becomes misaligned, the paddle moves in proportion to the misalignment and results in movement of a valve element relative to two orifice openings to provide differential air pressure proportional to error to operate the actuator to produce actuator movement proportional to the error to correct the position of the web.Type: GrantFiled: May 17, 1996Date of Patent: September 9, 1997Inventor: Robert L. Fife
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Patent number: 5614063Abstract: The invention is directed to a continuous belt edge detector system for use in a paper making machine having a continuous belt guide device. The edge detector system comprises a continuous belt having an edge dope with metallic particles therein and an inductive sensor connected to the guide device and adjacent the edge dope. The inductive sensor sends a signal to the guide device indicative of a location of the continuous belt. The guide device moves the continuous belt, e.g., transversely relative to the running direction of the belt within the machine, dependent on the inductive sensor signal.Type: GrantFiled: September 18, 1995Date of Patent: March 25, 1997Assignee: Voith Sulzer Paper Technology North America, Inc.Inventors: Edwin X. Graf, James A. Eng
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Patent number: 5609241Abstract: A training idler assembly for use with a conveyor belt which quickly responses to mis-tracking of the belt to thereby return the belt to its centered position. The idler roller is rigged through cables to hinged guide rollers which engage either side of the conveyor belt so that when the belt tracks either to the right or to the left, the respective guide roller actuates the appropriate cable to cause the idler roller to rotate about a vertical axis which, in turn, causes the belt to track back towards its center position on the idler roller.Type: GrantFiled: March 23, 1995Date of Patent: March 11, 1997Assignee: Atlantic Richfield CompanyInventor: Grover P. Shaw
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Patent number: 5365321Abstract: An endless belt driving device comprises an endless belt, a driving roller for driving the endless belt, a guide member for guiding the movement of the endless belt, and a supporting plate by which the guide member is supported so as to be rotatable about an axis perpendicular to the length of the guide member. When the endless belt is laterally displaced along the guide member, a load resulting from the force of displacement causes the guide member to turn. Consequently, a force oriented opposite to the direction of displacement acts on the endless belt.Type: GrantFiled: May 27, 1993Date of Patent: November 15, 1994Assignee: Canon Kabushiki KaishaInventors: Masato Koshimizu, Yuji Yamanaka
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Patent number: 5276460Abstract: A thermal printer of the type applying ink to an endless film belt, selectively melting the ink by a thermal head in response to an image signal, and transferring the melted ink to a recording medium to print an image on the medium. An idler guides the film belt while applying a predetermined tension thereto. A tension adjusting mechanism moves the end of the idler toward which the belt has skewed in the running direction of the belt. The idler and tension adjusting mechanism effectively reduce the local increase in the tension of the film belt.Type: GrantFiled: November 13, 1992Date of Patent: January 4, 1994Assignee: NEC CorporationInventor: Kunio Miyajima
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Patent number: 5117969Abstract: The present invention relates to a conveyor belt alignment system by which a pair of alignment rollers are mounted on a carrier frame about a pivot axis that is situated at the approximate transverse center between opposed longitudinal side edges of a conveyor belt. The alignment rollers are spaced longitudinally to accept and form a portion of the conveyor belt into a substantial "s" configuration. The centrally pivoted carrier frame and alignment rollers are pivoted by a pair of bladders 50, 51. Inflation of the bladders is controlled through a sensor 54 provided to detect the transverse position of an adjacent belt edge. If the belt edge shifts in one direction, the sensor detects such motion and operates the drive to selectively inflate one or the other of the air bladders to correspondingly shift the belt aligning rollers.Type: GrantFiled: July 11, 1991Date of Patent: June 2, 1992Assignee: Thermoguard Equipment, Inc.Inventor: Curtis A. Roth
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Patent number: 4893740Abstract: Apparatus for controlling the lateral movement of a travelling web to automatically compensate for web conicity and angular deviation of the web velocity vector. A preferred embodiment of the apparatus comprises a steering roller about which a travelling web is at least in part entrained. An assembly supports the steering roller for rotation about its longitudinal axis, and mounts the steering roller for angular adjustment about a caster axis perpendicular to such longitudinal axis at the mid-point of the steering roller. The assembly is, in turn, supported for rotation about a gimbal axis intersecting, and perpendicular to, the caster axis. Lateral movement of a web supported on the steering roller is sensed relative to the steering roller in the direction of the longitudinal axis of the steering roller. The mechanism for sensing lateral movement of the web moves in a corresponding direction to the sensed lateral movement of the web.Type: GrantFiled: November 21, 1988Date of Patent: January 16, 1990Assignee: Eastman Kodak CompanyInventors: Edwin A. Hediger, Michael Kenin, Peter G. Izzo
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Patent number: 4892426Abstract: A monitor (18,26,28) monitors movement of paper (12) through a printer (16). The paper movement sensors (18,26) comprise one central wheel (70) or a pair of spaced edge wheels (158) each operating an individual photo-optic wheel (164,76). By counting pulses from the photo-optic wheels (76,164) monitor logic (28) determines conditions of jam, over-feeding and skew within the printer (16) both on an instantaneous and on a short term cumulative basis. The system self-calibrates through an initializing routine and later, continuously during operation. Paper movement sensors (18,26) are provided in dust-protected housings which can be chained together to provide monitoring facilities at many points.Type: GrantFiled: June 30, 1988Date of Patent: January 9, 1990Assignee: Unisys CorporationInventor: David Steele
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Patent number: 4835547Abstract: A thermal printer with a mechanism for preventing recording sheet from meandering. In order to perform the mechanism, the thermal printer is provided with a thermal line head, a platen roller and a holding shaft which is perpendicular to the surface of a recording sheet and rotatable about the axis thereof, the holding shaft being engaged with the thermal line head in such a manner that the thermal line head is horizontally swingable about the axis of the holding shaft with the positional relation between the recording sheet and the thermal line head unchanged, and subjected to frictional force to return the thermal line head to its standard position, so that printing operation is correctly carried out all times and the recording sheet is returned to its standard position, that is, the meandering of the recording sheet is prevented. This mechanism also can be performed by providing the thermal printer with a brake shoe engaged with the holding shaft as described above.Type: GrantFiled: November 6, 1987Date of Patent: May 30, 1989Assignee: Kanzaki Paper Manufacturing Co., Ltd.Inventors: Akira Okushi, Shigeharu Myogatani, Kazuhito Murata, Yoshitsugu Hamaguchi, Koichi Tanaka
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Patent number: 4737045Abstract: In a paper stacking device for pre-folded continuous form paper wherein the paper web is supplied to a deposit table from below and the paper stack is built up proceeding from below, a stepping motor is coupled in terms of drive to the feed region, this stepping motor generating the reciprocating stacking motion by reversal of rotational sense, whereby the lift and the motion sequence are controllable via an electronic control device dependent on the form length. The seating surface for the acceptance bands accepting the paper stack is formed by discrete support elements; the deflection rollers themselves thereby serve for taking up the supporting bands. The paper stacking device can be an integrated component of the printer and is pivoted into and out of the latter.Type: GrantFiled: July 7, 1986Date of Patent: April 12, 1988Assignee: Siemens AktiengesellschaftInventor: Rainer Koefferlein
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Patent number: 4666073Abstract: The invention relates to a direct acting pneumatic control system for controlling a dual diaphragm, or double acting cylinder type automatic guiding system. The control device and system is used to selectively adjust the position of one end of a roll relative to the opposite end, in order to adjust the position of an endless web traveling over a series of rolls.In order to adjust and control the guide roll position, it is necessary to alternately exhaust one diaphragm, and or cylinder end, while maintaining the flow of air to the opposite diaphragm or cylinder end. This in effect shifts the roll in a lateral position, effectively steering the web in the proper direction to effect the necessary web correction.Type: GrantFiled: July 1, 1985Date of Patent: May 19, 1987Inventor: Kenneth S. DuFour
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Patent number: 4664303Abstract: A web transport apparatus including a simplified mount for a web-supporting roller, providing the axis of such roller with two degrees of freedom of movement. The simplified roller mount comprises an elongated, substantially planar, flexure member having a stiffening rib located along its longitudinal axis to limit flex of the member to movement about its longitudinal axis. A pin is supported by the flexure member. The pin lies substantially in the plane of the flexure member with the longitudinal axis of the pin perpendicular to the longitudinal axis of the flexure member. The web-supporting roller is carried, for example by a yoke supported on the pin for movement with a first degree of freedom about the longitudinal axis of the pin and with a second degree of freedom about the longitudinal axis of the flexure member.Type: GrantFiled: December 16, 1985Date of Patent: May 12, 1987Assignee: Eastman Kodak CompanyInventors: John E. Morse, Michael W. LaCourt, Richard G. Ellis
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Patent number: 4655378Abstract: The invention relates to a direct acting pneumatic control system for controlling a dual diaphragm, or double acting cylinder type automatic guiding system. The control device and system is used to selectively adjust the position of one end of a guide roll relative to the opposite end, in order to adjust the position of an endless web traveling over a series of rolls.In order to adjust and control the guide roll position, it is necessary to alternately exhaust one diaphragm, and or cylinder end, while maintaining the flow of air to the opposite diaphragm or cylinder end. This in effect shifts the end of the roll in a lateral direction, effectively steering the web in the proper direction to effect the necessary web correction.Type: GrantFiled: July 2, 1985Date of Patent: April 7, 1987Inventor: Kenneth S. DuFour
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Patent number: 4645066Abstract: A conveyor assembly having one of its conveyor rollers which is movable to change the angle of its axis to the conveyor direction for causing sideways movement of the conveyor belt. Movement of the roller is controlled by a linkage drivably connected to a ratchet nut riding on a threaded spindle to move one end of the roller sideways on a carriage. A linkage adjustment arrangement is provided to adjust the degree of driving engagement of the linkage with the ratchet nut.Type: GrantFiled: July 8, 1985Date of Patent: February 24, 1987Assignee: Northern Telecom LimitedInventor: Walter L. Richardson
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Patent number: 4641770Abstract: Mechanism for angularly adjusting a web-supporting steering roller of a web tracking apparatus about its steering axis in response to lateral movement of the supported web relative to the steering roller. In the web tracking apparatus, the web-supporting steering roller is mounted for rotation about its longitudinal axis and angular adjustment about a steering axis perpendicular to such longitudinal axis. The mechanism for angularly adjusting the steering roller comprises a lever assembly, for example, coupled to the steering roller for rotating such roller about the steering axis. Lateral movement of the web relative to the steering roller is sensed. A member, associated with the lever assembly and responsive to the sensing of lateral web movement, moves the lever assembly to rotate said steering roller for angular adjustment about the steering axis an amount corresponding to sensed lateral movement of the web.Type: GrantFiled: April 26, 1985Date of Patent: February 10, 1987Assignee: Eastman Kodak CompanyInventor: Edwin A. Hediger
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Patent number: 4629061Abstract: A belt steering control system for a belt press having a frame and a plurality of rolls around which a pair of belts passes, said system comprising a paddle-type belt edge position sensor lightly biased against the edge of the belt for sensing the actual position of the belt edge and producing an error signal indicative of the deviation of the belt edge relative to its position where the belt is centered; the paddle sensor being connected by a control shaft to a rotary drive transfer means; the drive transfer means transmitting movement of the paddle sensor to a rotary hydraulic valve by means of a variably tensioned, spring-loaded disc which engages the rotary drive transfer means; a belt steering roll around which the belt is trained and having two ends mounted in bearings on the frame, one of the ends being mounted for translation relative to the frame; and a steering roll actuator which is controlled by the rotary hydraulic valve and skews the steering roll when necessary to maintain proper belt tracking.Type: GrantFiled: April 22, 1985Date of Patent: December 16, 1986Assignee: Rexnord Inc.Inventor: Robert E. Crandall
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Patent number: 4397538Abstract: An apparatus which controls lateral alignment of a belt arranged to move along a predetermined path. The belt is supported by a pivoted roller. A member having a pair of opposed, spaced flanges extending outwardly therefrom is mounted slidably on a shaft extending outwardly from one end of the roller. A spring, contacting the flanged member, resiliently urges one of the flanges into continuous engagement with one side of the belt. Movement of the belt from the predetermined path slides the flanged member so that one of the flanges frictionally rotates a disc interposed therebetween. Rotation of the disc tilts the roller restoring the belt to the predetermined path of movement.Type: GrantFiled: September 3, 1981Date of Patent: August 9, 1983Assignee: Xerox CorporationInventors: Vittorio Castelli, Ralph A. Hamaker, Willard J. Opocensky
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Patent number: 4212419Abstract: A device for guiding a strip so that it is kept in a predetermined lateral position as the strip moves from a supply to a take up reel. The device includes mechanical sensors sensing the lateral edges of the strip, the sensors being coupled by a differential linkage system to a frame in which is mounted a pair of rollers, one each side of the strip and in contact therewith. The frame is pivoted about an axis perpendicular to the strip so that if the strip shifts laterally the sensors move the differential linkage to pivot the frame and thereby cause the rollers, one of which is driven or braked, to impart a component of motion to the strip to move it back to its initial position.Type: GrantFiled: October 10, 1978Date of Patent: July 15, 1980Assignee: Gretag AktiengesellschaftInventor: Ernst Huber
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Patent number: 4174171Abstract: An apparatus in which the lateral alignment of a belt arranged to move in a pre-determined path is controlled. A support mounted resiliently constrains lateral movement of the belt causing the belt to apply a moment to a pivotably mounted steering post. As a result of this moment, the steering post pivots in a direction to restore the belt to the pre-determined path.Type: GrantFiled: July 24, 1978Date of Patent: November 13, 1979Assignee: Xerox CorporationInventors: Ralph A. Hamaker, Kenneth J. Buck
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Patent number: 4160517Abstract: A web aligning apparatus for use with multi-level web material such as carpeting, tufted fabrics and the like having a backing web and a pile on the backing web inwardly of a side edge of the backing web. The web aligning apparatus includes a pile engaging member mounted at a sensing location along the course of travel of the web for movement along a first path crosswise of the course of web travel and generally parallel to the face of the web at the sensing location to sense lateral deviations of the course of travel of the pile edge from a preselected position. The pile engaging member is also mounted for movement along a second arcuate path generally tangent to the web from a first position extending alongside the web backing at the sensing location toward a second position displaced along the arcuate path in the direction of travel of the web when the pile engaging member rides onto the pile.Type: GrantFiled: January 9, 1978Date of Patent: July 10, 1979Assignee: Rockford Servo CorporationInventor: Raymond A. Buisker
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Patent number: 4073448Abstract: An automatic device for fixing the edge of a moving band, wherein the roll holder that feeds the band over at least one bar, is controlled by the band roll cross-traverse mechanism. This mechanism is made as an air cylinder whose chambers communicate with a system of compressed gas through a number of pipings and throttle valves provided in each of said pipings, whereas connected with their inlets between each of the throttle valves and the respective chamber of the air cylinder are nozzles adapted to provide a uniform gas discharge from both air cylinder chambers at a time. At least one of said nozzles is provided with a closure adapted to interact with the band edge, and thus serves as the band edge position detector capable of effecting control over the air cylinder operation.Type: GrantFiled: September 9, 1976Date of Patent: February 14, 1978Inventor: Ivan A. Kolosov
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Patent number: 4061222Abstract: Apparatus for automatically tracking an endless belt or web of material in a stable, predetermined path of movement despite changes in the belt configuration due to differential belt stretching or the introduction into the machine of a new belt having a slightly different configuration. The apparatus includes a steering roller supported for rotational movement about the longitudinal central axis and tilting movement about an axis perpendicular to the longitudinal axis. In one embodiment, a steering roller control signal is produced by comparing the magnitude of the weighted sum of voltage signals representative of the lateral belt edge position and the tilted roller position with the magnitude of the integrated sum of the lateral belt edge position signal and a command signal representative of the desired lateral belt edge position.Type: GrantFiled: June 17, 1976Date of Patent: December 6, 1977Assignee: Eastman Kodak CompanyInventor: Allen J. Rushing
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Patent number: 3997094Abstract: A device is described for aligning coiled sheet material in the die of a power press during stamping operations. It includes a coiled sheet material feeder having a pair of powered gripping rollers for gripping and advancing the sheet material, these rollers being mounted on a head portion which is supported on a base with the feeder head being arranged to pivot on the base about a vertical axis and to move on the base laterally to the direction of travel of the sheet material while being fixed against movement parallel to the direction of travel of the sheet material. Hydraulic cylinders are provided for separately laterally moving forward and rearward portions of the feeder head and these are operatively connected to detector means, such as feeler actuated solenoid valves positioned along one side of the travel path of the sheet material between the feeder head and power press.Type: GrantFiled: March 10, 1976Date of Patent: December 14, 1976Inventor: Albert Orser Aylesworth
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Patent number: 3935979Abstract: A web alignment apparatus for use with multi-level web material such as carpeting, tufted fabrics and the like having a backing web and a pile on the backing web inwardly of the side edge of the backing web. The web alignment apparatus senses the pile edge and operates to maintain the pile edge in a preselected course relative to an apparatus that operates on the web. The sensor includes a web engaging member movable in a first path generally paralling the plane of the web to sense lateral deviations of the pile edge from the desired course of travel and the web engaging member is also movable in a second path transverse to the plane of the web to sense if the web engaging member rides onto the pile material, and the sensor is arranged to produce a signal when moved in either the first or second paths to operate the web alignment apparatus accordingly to shift the web relative to the apparatus operating thereon in a direction to bring the pile edge to the desired course of travel.Type: GrantFiled: October 21, 1974Date of Patent: February 3, 1976Assignee: Rockford Servo CorporationInventor: Thomas L. Hickey