Machine Parts Patents (Class 33/710)
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Patent number: 12118845Abstract: Provided are a holding body that holds a guide roller and locking position changing means for changing a locking position of the holding body with respect to a base body along a track in a circumferential direction centered on a rotation axis of a rotary disk, the locking position changing means including a first tooth row and a second tooth row, and the like that mesh with each other. In the configuration, since a feeding roller with which a coin collides is smoothly moved in a forward movement direction regardless of a distance between the feeding roller and a guide roller (regardless of a size of the coin), occurrence of the coin jam due to a movement failure of the feeding roller can be suppressed.Type: GrantFiled: September 5, 2019Date of Patent: October 15, 2024Assignee: ASAHI SEIKO CO., LTD.Inventor: Masayoshi Umeda
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Patent number: 12112594Abstract: A holding unit that reciprocally holds a feeding roller and is separated from a base body, and locking position changing means (a first tooth row, a second tooth row, a shaft support portion, a cylindrical shaft, and the like) for changing a locking position of a holding unit with respect to the base body along a track in a direction in which a distance between the feeding roller and the guide roller is changed are provided. In the configuration, a position and an orientation of a guide roller are caused to be constant regardless of a size of a coin, and thus the coin is appropriately guided toward a feeding passage by the guide roller regardless of the size of the coin.Type: GrantFiled: September 5, 2019Date of Patent: October 8, 2024Assignee: ASAHI SEIKO CO., LTD.Inventor: Tomokazu Korenaga
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Patent number: 11649613Abstract: A system for tracking a position of a working edge on an implement of a construction vehicle includes a GNSS with an antenna. The GNSS unit is configured to determine a position of the antenna and a tilt and a heading of the GNSS unit. A mount is configured to couple the GNSS unit to a rigid member of the construction vehicle. The mount is configured to couple the GNSS unit to the rigid member so that the antenna is arranged in a known spatial relationship with a pivot point between the rigid member and the implement. A mobile controller is configured for wireless communications with the GNSS unit and an angle sensor that is configured to determine rotation of the implement. The mobile controller is configured to receive the position of the antenna, the tilt, and the heading from the GNSS unit, to receive the rotation of the implement from the angle sensor, and to determine coordinates of the working edge of the implement in a real world coordinate frame.Type: GrantFiled: February 25, 2020Date of Patent: May 16, 2023Assignee: Trimble Inc.Inventors: John Boss, Jon McKendry, Scott Crozier, Casey Cyrus, Alex Harrington
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Patent number: 10415958Abstract: Provided is a measuring device that can easily and accurately measure a shape at a desired point of a measuring object. A stage is held on an installation part. A head unit including a light projecting unit and a light receiving unit and the installation part are fixedly coupled together by a stand. An effective region is set to a space on the stage. Point cloud data corresponding to the effective region is obtained as measurement data from the generated point cloud data. Designation of a point to be measured in the measuring object is received, and a measurement value at the designated point is calculated based on the obtained measurement data.Type: GrantFiled: June 9, 2017Date of Patent: September 17, 2019Assignee: Keyence CorporationInventor: Takashi Nakatsukasa
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Patent number: 10080975Abstract: The present invention relates to an improved spinning top toy capable of being movable while the top is spinning, and easily coupling a launcher for rotating and launching the top and a winder for providing the top with a rotational force.Type: GrantFiled: August 22, 2014Date of Patent: September 25, 2018Inventor: Jong-Ill Choi
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Patent number: 9737822Abstract: A spin speed measuring device almost free of malfunction is provided at low cost. The spin speed measuring device includes a casing, a spinning body pivotally supported in the casing, a pinion gear configured to spin together with the spinning body, a belt having a rack and a plurality of indicators, the rack being configured to mesh with the pinion gear, and a detector attached to the casing to detect the indicator passing by. The spin speed measuring device measures the spin speed of the spinning body. A spin speed of the spinning body is calculated from a time period from when one of the indicators passes by to when another one of the indicators passes by, the time period being obtained using signals output from the detector.Type: GrantFiled: April 20, 2016Date of Patent: August 22, 2017Assignee: TOP RUNNER CO., LTD.Inventor: Masakiyo Kubo
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Patent number: 8277122Abstract: A guide rail of a linear guide, on guide surfaces on which a guide carriage is longitudinally displaceable. A material measure is arranged at a distance, preferably in parallel, to the guide rail and is fastened to the guide rail by means of a mount. The guide rail has a groove or a hole arranged outside the guide surface. The mount can be detachably fastened by means of expanding elements that engage with the groove or into the hole.Type: GrantFiled: December 12, 2007Date of Patent: October 2, 2012Assignee: Schaeffler Technologies AG & Co. KGInventors: Dietmar Rudy, Martin Menges, Mario Natale
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Publication number: 20090076460Abstract: The present invention relates to a contact free arrangement for determining an absolute position of a member adapted for setting an amount of medicament to be injected from a medication delivery device, or adapted for determining an amount of medicament injected from a medication delivery device. The arrangement according to the present invention comprises at least one track of reflector means, at least one emitter means, and at least one receiver means. The at least one emitter means and the at least one receiver means are adapted to electrically couple to a number of the reflector means. The electrical coupling may be capacitive or inductive. In addition, the present invention relates to a medication delivery device or a syringe having such arrangement.Type: ApplicationFiled: September 22, 2006Publication date: March 19, 2009Applicant: Novo Nordisk A/SInventors: Preben Nielsen, Bodo von Munchow
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Publication number: 20080148590Abstract: A method of measuring an object includes positioning the object on a moveable stage, performing a rotary scan of the object with a range sensor, and determining geometric parameters of the object based on the rotary scan.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Inventors: Steven Robert Hayashi, Zhongguo Li, Kevin George Harding, Jianming Zheng, Howard Paul Weaver, Xiaoming Du, Tian Chen
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Patent number: 7246977Abstract: An indicating device with large graduations for a plane is installed at a combining section of a main base and a worktable of the plane, including a graduation ruler, a pointer and a rack. The graduation ruler formed as an arc is provided with graduations with number figures for readings. The upper end portion of the pointer faces exactly to the graduation ruler for pointing to one of the graduations. The pointer has gear teeth in its lower round edge for engaging with gear teeth located on one side of the rack. Therefore, a displacement the worktable moves relative to the main base can be clearly and easily read from the graduations of the graduation ruler.Type: GrantFiled: September 11, 2006Date of Patent: July 24, 2007Inventor: Bor-Yann Chuang
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Patent number: 7134177Abstract: A device for applying a scale element to a first body, in relation to which a second body can be moved in a measuring direction, the device includes an alignment element displaceable on a scale element in a measuring direction, and applied transversely thereto in a defined position, and includes a reference surface, which is adapted for interaction with a second reference surface on a second body and otherwise is loose in relation to the second body.Type: GrantFiled: February 5, 2003Date of Patent: November 14, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Sebastian Tondorf, Peter Pechak
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Patent number: 6732559Abstract: Integrating device to detect and recover the deformation of shoulders in a press-bending machine, including an optical ruler joined to the beater and reading trolley, pulled back elastically, and stressed by the false shoulder. The device provided for the false shoulder is made up of a rod perpendicular to the beater, which on one side is hinged to the shoulder of the machine, while on the opposite end, oscillating and facing the beater. It is stressed by the arm joined to the reading trolley of the optical ruler. The rod provides a slider in connection with an underlying plane plate that is part of the false shoulder.Type: GrantFiled: June 20, 2002Date of Patent: May 11, 2004Inventor: Luciano Gasparini
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Patent number: 6516534Abstract: A measurable guide actuator is used to integrate a driving mechanism, a guide mechanism, and a position measuring member so as to form an integral simplifying construction, thereby facilitating the usage and thereby reducing consumption of material. The measurable guide actuator of the present invention uses a U-shaped guide track to function as the guide mechanism. The driving mechanism uses a screw or a belt. The position measuring member includes a ruler body mounted in the guide mechanism, and a reading head sealed in the sliding table to slide therewith so that the position measuring member can be used to measure the displacement position values.Type: GrantFiled: May 4, 2001Date of Patent: February 11, 2003Assignee: Hiwin Technologies Corp.Inventors: Tung-Hsing Chen, Ching-Shan Wu
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Patent number: 6447240Abstract: An arrangement is provided for determining the relative angular orientation between an excavator bucket and the dipper stick of an excavator. The excavator bucket is mounted on a bucket linkage that is pivotally secured to the end of the dipper stick. An hydraulic actuator has an hydraulic cylinder pivotally connected to the dipper stick, and a piston rod pivotally connected to the bucket linkage. Extension or contraction of the hydraulic actuator causes the excavator bucket to be pivoted by the bucket linkage with respect to the dipper stick. A cable extension linear position transducer having a transducer casing, a sheath extending from the casing to a pulley system, and an extensible belt cable extending from the sheath through the pulley system to an end of the piston rod, provides an electrical output related to the extension of the belt cable from the sheath. A transducer mounting secures the casing of the cable extension linear position transducer in fixed relationship to the hydraulic cylinder.Type: GrantFiled: March 8, 2000Date of Patent: September 10, 2002Assignee: Trimble Navigation LimitedInventors: Gary L. Cain, Richard Piekutowski
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Patent number: 6438861Abstract: A radial clearance measurement device includes a pair of opposed drive heads, connected by an adjustable strut. Each drive head is fitted with a radial distance measurement device including a plate adapted to slide within a dovetail groove in a radial stator core slot, a spring-loaded plunger adapted to engage a surface of an armature bar located in the radial stator slot, and a linear voltage displacement transducer for measuring distance between the dovetail groove and the armature bar. The device is adapted to move through the bore of the stator, with the plungers engaged with armature bars in diametrically opposed radial stator core slots.Type: GrantFiled: December 22, 2000Date of Patent: August 27, 2002Assignee: General Electric CompanyInventors: Kenneth John Hatley, Richard Michael Hatley, Michael John Bousquet, Alan Michael Iversen, William Gene Newman
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Patent number: 6433875Abstract: A measuring system for measuring the accuracy of the position and track of a machine element moved along a predetermined track. The system includes a predetermined track along which a machine element moves relative thereto and a measuring device for measuring the position of the machine element along the track. The track has a guide of the measuring device, on which a carriage is guided along the track, wherein the machine element can be fastened to the carriage. A component of the measuring device is fastened on the carriage and a drive integrated with the measuring device moves the carriage in a controlled manner along the guide into predetermined positions and at predetermined speeds.Type: GrantFiled: April 22, 1999Date of Patent: August 13, 2002Assignee: Institut für Fertigungstechnik Technische Universität Graz O. Univ. -Prof. Dipl. -Ing. Dr. Techn Adolf FrankInventor: Igor Kovac
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Publication number: 20010050360Abstract: A lifting column provided with a powered lifting mechanism (3, 4, 5) which moves a loading bucket (7) along the vertical axis of the column. The column comprises a linear transducer (20, 30) which directly measures the height reached by the loading bucket and continuously transmits the read values to a computer unit (33). The invention further relates to an apparatus comprising a plurality of such columns and a central unit which compares the height of the various bucket and control the power group of the columns in order to maintain the various heights at the same level.Type: ApplicationFiled: December 22, 2000Publication date: December 13, 2001Inventor: Paolo Barbagallo
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Patent number: 6327791Abstract: A position detector for sensing the position of a movable member which moves along an axis relative to a stationary member. A nonrepeating N bit chain code embodied in a scale on the movable member runs along the axis. A detector fixed to the stationary member is positioned to sense a portion of the chain code. The detector has K elements (K>>N) generating a plurality of signals. A controller determines the position of the movable member relative to the stationary member as a function of the signals.Type: GrantFiled: June 9, 2000Date of Patent: December 11, 2001Assignees: The Government of the United States as represented by the Secretary of Commerce, National Institute of Standards and TechnologyInventors: Richard J. Norcross, David P. Engvall, W. Robert Bunch
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Patent number: 6272760Abstract: A damping device for vibration damping of components of a coordinate measuring equipment has a damping component which is frictionally connected to the component to be damped. The characteristic frequency of the damping component deviates from the characteristic frequency of the component to be damped.Type: GrantFiled: July 21, 1998Date of Patent: August 14, 2001Assignee: Carl-Zeiss-Stiftung trading as Carl ZeissInventors: Wolfgang Wiedmann, Carsten Würfel, Eugen Aubele
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Patent number: 6269546Abstract: A gauging or measuring head for the linear dimension checking of mechanical pieces, including a casing (1), an arm (49) carrying a feeler (67) for contacting a piece to be checked, a fulcrum (74), coupled to the casing (1) and the arm (49), for enabling displacements of the arm (49) with respect to the casing (1), a return spring (95) for keeping the feeler (67) in contact with the piece during the checking, a device (98, 100) for retracting the arm (49) and a position transducer providing signals depending on the position of the arm (49) with respect to the casing (1). The fulcrum is made of a deformable element (74) including two coupling blocks (81, 83) and three laminae (75, 77, 79) permanently secured to the blocks (81, 83), and substantially arranged in two different planes of a sheaf of planes.Type: GrantFiled: March 30, 1999Date of Patent: August 7, 2001Assignee: Marposs Societa per AzioniInventor: Luciano Ventura
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Patent number: 6253460Abstract: An apparatus, system and method for determining the position for translating, rotating and complex motion generating shaft elements are provided. A layer may be deposited over an exterior surface of the shaft element containing a known surface geometry to provide for monitoring displacement using one or more proximity sensors. The proximity sensor detects any change in the distance between the sensor and the exterior surface geometry of the shaft element. The shaft element may alternatively be magnetized for use with magnetic sensors. The gap dimension is proportional to and/or indicative of the absolute position.Type: GrantFiled: June 10, 1999Date of Patent: July 3, 2001Inventor: Geoffrey W. Schmitz
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Patent number: 6219927Abstract: A differential gear housing includes grooves into which retaining rings are fitted which engage on races of tapered roller bearings. The width of the securing rings is determined in accordance with the desired tooth flank clearance between a ring gear and a bevel drive pinion and with a desired prestress in the tapered roller bearings. Preliminary to selecting the retaining rings, devices are used which engage with a tensioning bush in the grooves and have a pressure member movable axially inside the tensioning bush and supported on the respective tapered roller bearing race. The pressure member is then suitably moved in relation to the tensioning bush to a position where the desired prestress and tooth flank clearance have been reached. The desired retaining ring axial width can then be read off from the device followed by selection and insertion of the desired retaining rings.Type: GrantFiled: June 24, 1999Date of Patent: April 24, 2001Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Fritz Westermaier
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Patent number: 6185829Abstract: A sensor structured as a two-part oscillator is employed in a device for measuring the position of a movable operating member of a machine, such as a plunger in a glassware forming machine. The plunger is attached on a piston rod of a piston/cylinder unit cooperating with the measuring device for the continuous measurement of the position of the plunger during its stroke. The first part of the sensor is a resonance circuitry formed of a coil and a capacitor. The capacitor has first and second capacitor elements stationary relative to one another and a third capacitor element movable with the piston rod relative to the first and second elements. The resonance circuitry is disposed in the cylinder of the unit such that the resonance frequency of the resonance circuitry is variable in proportion to the change of capacitance of the capacitor in response to the change of the position of the piston rod relative to the cylinder.Type: GrantFiled: March 18, 1999Date of Patent: February 13, 2001Inventor: Hartmut Geisel
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Patent number: 6108925Abstract: A length measurement system for measuring the relative position of two objects in a given measuring direction comprises a scale carrier which carries a measurement scale and which is fastened to a first of the two objects and a scanning head which scans the measurement scale at a scanning location and is fastened to the second of the two objects. The scale carrier is constructed so as to be stiff in the longitudinal direction but can deflect in a springing manner vertical to the measuring direction and is fastened by only one of its ends to the first object, while its other end projects freely. The scale carrier is positively guided in the region of the scanning head.Type: GrantFiled: March 17, 1998Date of Patent: August 29, 2000Assignee: Dr. Johannes Heidenhain GmbHInventor: Hans-Joachim Freitag
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Patent number: 6099235Abstract: An arrangement is provided for determining the relative angular orientation between an excavator bucket and the dipper stick of an excavator. The excavator bucket is mounted on a bucket linkage that is pivotally secured to the end of the dipper stick. An hydraulic actuator has an hydraulic cylinder pivotally connected to the dipper stick, and a piston pivotally connected to the bucket linkage. Extension or contraction of the hydraulic actuator causes the excavator bucket to be pivoted by the bucket linkage with respect to the dipper stick. A cable extension linear position transducer having a transducer casing, a sheath extending from the casing, and an extensible cable extending from the sheath, provides an electrical output related to the extension of the cable from the sheath. A transducer mounting secures the casing of the cable extension linear position transducer in fixed relationship to the hydraulic cylinder. A clip secures the extensible cable to the piston.Type: GrantFiled: December 4, 1997Date of Patent: August 8, 2000Assignee: Spectra Precision, Inc.Inventors: Gary Lynn Cain, Richard Piekutowski
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Patent number: 6088925Abstract: An apparatus for measuring seal defects on a seal surface of a rocket motor case field joint is provided. The apparatus includes a base mountable onto the rocket motor case field joint. The base is sweepable circumferentially along the field joint. An axial sweeping mechanism is disposed on the base and is sweepable axially along the case field joint. A measurement probe for measuring the depth of the seal defect is disposed on the axial sweeping mechanism.Type: GrantFiled: May 29, 1998Date of Patent: July 18, 2000Assignee: Cordant Technologies Inc.Inventors: Ronald B. Montgomery, M. Bryan Ream
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Patent number: 6073358Abstract: An arrangement and method for measuring a distance between rotating and stationary parts of a device, such as a turbine. The arrangement and method allow for the measurement of a distance between the tip of the rotating bodies arranged on a rotor of the turbine, and the inside of a casing that encloses the rotor. The arrangement and method provide for at least one abrasion-tolerant layer of a specified thickness arranged on the inside of the casing opposite the tip of the rotating body at a specified thickness. The at least one abrasion-tolerant layer includes at least one indicator that can be detected in the exhaust gas of the turbine, thereby providing indication of abrasion between the tip of the rotating body and the abrasion-tolerant layer.Type: GrantFiled: April 21, 1998Date of Patent: June 13, 2000Assignee: ABB Alstom Power (Switzerland) Ltd.Inventor: Uy-Liem Nguyen
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Patent number: 6035541Abstract: A hemispherical dynamic pressure bearing comprises a bushing in which a hemisphere/shaft unit is mounted with clearance, enabling the unit to move relative to the bushing between first and second terminal positions. In order to measure the size of the clearance, the bearing is inserted into a body, and a retainer disposed in the body is actuated for keeping the bushing stationary. An adjusting mechanism disposed in the body is actuated for displacing the hemisphere/shaft unit vertically relative to the bushing between the first and second terminal positions, wherein the hemisphere/shaft unit projects from an end of the bushing by first and second heights, respectively. Those heights are measured and a difference therebetween is determined, which difference corresponds to the clearance.Type: GrantFiled: November 25, 1997Date of Patent: March 14, 2000Assignee: Samsung Electronics Co., Ltd.Inventor: Jin-Seung Choi
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Patent number: 5918493Abstract: A contour measuring devices for measuring the contour of hot-strip rolls installed in a roll stand during a rolling process includes a plurality of distance sensors that extend along the length of the hot-strip roll in a perpendicular and non-contacting manner and, in this manner. Each distance sensor has a measurement head oriented towards the hot-strip roll. The plurality of distance sensors are positioned separate from and lateral to each other on and along a longitudinal support. The longitudinal support is comprised of a double shell tube that cools the design sensors with an inner tube that conducts a coolant, a shell tube that surrounds the inner tube, and an annular space located therebetween. The inner tube is fixed at its opposite ends in a position relative to the shell tube.Type: GrantFiled: December 10, 1996Date of Patent: July 6, 1999Assignee: Mannesmann AktiengesellschaftInventor: Horst Cerv
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Patent number: 5837981Abstract: A signal outputting device of optical ruler is disclosed. It includes a first guide seat formed with an internal axial chamber for receiving a reflecting plate therein, a second guide seat including a slide block axially movable within the chamber and a resilient lever having a fixed end disposed on the slide block, and a sensor disposed on outer side of the slide block. An inner side of the sensor abuts against a free end of the resilient lever. The slide block is disposed with two first stopper sections spaced from each other by a certain distance. The sensor is positioned between the first stopper sections. A section of the sensor, which contacts with the free end of the resilient lever, is formed with a guide channel axially parallel to the moving direction of the slide block. In the case of change of the distance between the first and second guide seats, the accuracy of the optical ruler for measuring length will not be affected.Type: GrantFiled: July 24, 1997Date of Patent: November 17, 1998Inventor: Chin-Yuan Wang
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Patent number: 5566463Abstract: A servo system includes a driven body (C), a hydraulic driving unit (A) for moving the driven body (C), a mechanical hydraulic servo valve (1), a sheave (31), a flexible measuring tape (33), a rotary driving source (M) and an adjusting unit (4,5,6,7). The servo valve (1) includes a spring-biased movable spool (11) and can activate the driving unit (A) to move the driven body (C) when the spool (11) is moved. The sheave (31) is mounted on the driven body (C) and has an outer peripheral surface. The measuring tape (33) has a first end portion secured to the sheave (31), a second end portion (331), and an intermediate portion wound on the sheave (31) along the outer peripheral surface of the sheave (31). The rotary driving source (M) is coupled operably to the sheave (31) and is operable to rotate the sheave (31) in order to wind and unwind the measuring tape (33).Type: GrantFiled: June 15, 1994Date of Patent: October 22, 1996Assignee: Waysia Industrial Co., Ltd.Inventor: Fu L. Chang
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Patent number: 5457892Abstract: A gauge for determining pertinent dimensions to which portions of die keeper pin assemblies are to be machined prior to insertion of the latter into a stamping die assembly. The gauge includes a body having a partial circular extension formed on one end thereof, a rod having one threaded end freely mounted through an axial passageway and threadedly connected to threads formed at the end thereof, a hole formed in the non-circular portion of the extension, a spring-loaded pin slip-fitted in the hole adapted to being secured in any axial position by threading the rod into engagement with the pin. The gauge is inserted through a passage formed through a wall of a stamping die body so as to position the pin in the path of a movable die pad, while the rod is out of contact with the pin. After the pad is caused to travel to its lowest position, urging the pin inwardly, the rod is threadedly extended into engagement with the pin to hold its depressed position.Type: GrantFiled: September 7, 1994Date of Patent: October 17, 1995Assignee: Chrysler CorporationInventor: Peter Birschl
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Patent number: 5367748Abstract: A bale opener for removing fiber tufts from top surfaces of fiber bales assembled in a series includes a carriage for travelling back-and-forth along a generally horizontal, first path of travel along the fiber bale series; a tower mounted on the carriage for travel therewith; a fiber tuft detaching device extending from the tower and movable relative to the tower along a generally vertical, second path of travel; and an incremental rotary displacement signalling device including a shaft; a toothed rotary element mounted on the shaft; a counter element meshing with the rotary element which is movable relative to the counter element; and a signal generator coupled to the toothed element for generating signals as a function of rotary displacements of the toothed element.Type: GrantFiled: November 4, 1993Date of Patent: November 29, 1994Assignee: Trutzschler GmbH & Co. KGInventors: Ferdinand Leifeld, Josef Temburg
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Patent number: 5272927Abstract: An anti-backlash spline coupling configured to have the identical rotation as a spline shaft with which it is engaged. The coupling includes two plates and tensioning means which bias the rotary movement of each plate against the other. The coupling may be used in a position measuring system to accurately measure the rotation of a workpiece which is subject to both vertical and rotary motion.Type: GrantFiled: June 3, 1992Date of Patent: December 28, 1993Assignee: Carlen Controls, Inc.Inventor: Eric T. Carlen
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Patent number: 5216819Abstract: A method of detecting rivets which are outside of a predetermined length tolerance includes holding a rivet in a first reference position with its head in a rivet hole countersink, and moving a probe, in the form of a rivet tail die, into contact with the rivet tail. The position of the probe when it contacts the rivet tail is detected and compared with the predetermined position tolerences corresponding to the rivet length tolerences. The rivet is held in the first reference position by a rivet head die with a force greater than the force exerted by the probe when contacting the rivet tail to ensure that the rivet stays in the reference position during the measuring step. If the rivet is too long or too short, a rivet recovery sequence is executed to remove the out-sized rivet and a new rivet is inserted and measured. When the rivet is confirmed to be within the length tolerance, the rivet dies are driven inward toward each other to upset the rivet.Type: GrantFiled: January 10, 1992Date of Patent: June 8, 1993Assignee: The Boeing CompanyInventor: Gregory C. Givler
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Patent number: 5171584Abstract: A nozzle for a gap measuring system includes a short outlet passageway defined by a smooth, cylindrical wall terminating in an outlet orifice and having an entrance orifice surrounded by a wall portion that is substantially perpendicular to the outlet passageway. As fluid flows through the nozzle, it encounters the surrounding wall portion at the entrance of the short outlet passageway of the nozzle which constricts the fluid flow upon entry into the short outlet passageway of the nozzle. As a result of the nozzle geometry, the fluid exits the nozzle outlet with a higher velocity, lower pressure and decreased turbulence. The incorporation of such a nozzle into a gap measuring system can produce an increase in the reliability and accuracy of distance determinations nearly ten times that which was previously attainable with prior nozzle inserts.Type: GrantFiled: May 7, 1991Date of Patent: December 15, 1992Assignee: Matrix Technologies, Inc.Inventors: Charles R. Ramsey, Russell E. Holcomb, Brian L. Backus
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Patent number: 4969274Abstract: A displacement measuring and remote control apparatus includes a sheave having a helical groove therein, a flexible belt wound on the sheave along the helical groove and connected securely to a movable member, an azimuth identification device connected to the sheave for indicating the rotational angle of the sheave. The rotational angle of the sheave can be realized by the azimuth identification device so that it may be converted into the displacement of the movable member. The belt is continually tensed by a tensing device. The apparatus can be used in a hydraulic servo system for the purpose of remotely controlling the movement of a hydraulic driving unit and a driven body.Type: GrantFiled: October 11, 1988Date of Patent: November 13, 1990Inventor: Fu-Rong Chang
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Patent number: 4903750Abstract: A gap monitor for rolls of a continuous casting machine characterized by sets of rolls disposed in opposed pairs separated by spaced gaps and defining a path of travel for a workpiece, each roll comprising aligned roll segments, a roll gap monitor including a housing having one side retractably movable from the housing to contact rolls so that the other side of the housing also contacts the corresponding rolls. The one side is coextensive with the housing and is spring biased outwardly to contact the aligned roll segments. The monitor also comprises a gap sensor extending between opposite sides of the housing and having opposite ends engageable with the opposite pairs of rolls successively as the monitor moves through the path of travel. Transducer means are operatively connected to the gap sensor for transmitting signals representative of measurements of the gaps of each pair of rolls.Type: GrantFiled: August 31, 1988Date of Patent: February 27, 1990Assignee: Westinghouse Electric Corp.Inventor: Kenneth D. Ives