Variable Speed During One Revolution (e.g., Intermittent) Patents (Class 83/593)
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Patent number: 10814511Abstract: Methods, apparatus, and systems for cutting material used in fused deposition modeling systems are provided, which comprise a ribbon including one or more perforations. Material is passed through at least one perforation and movement of the ribbon cuts the material. A further embodiment comprises a disk including one or more blade structures, each forming at least one cavity. Material is passed through at least one cavity and a rotational movement of the disk cuts the material. A further embodiment comprises a slider-crank mechanism including a slider coupled to a set of parallel rails of a guide shaft. The slider moves along a length of the rails to cut the material. Yet another embodiment comprises one or more rotatable blade structures coupled to at least one rod. The rotation of the blade structures causes the blade structures to intersect and cut extruded material during each rotation.Type: GrantFiled: December 10, 2018Date of Patent: October 27, 2020Assignee: The Boeing CompanyInventors: John C. Waldrop, III, Daniel D. Bloch, Michael W. Hayes, Loren J. Strahm, Peter A. Szostak
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Patent number: 6363823Abstract: A machine, for example machine for cutting discrete sheets of material from a web, which includes a web supply and a processing station such as a cutoff station, is provided with a variable index drive operating feed structure for moving the web intermittently a predetermined but adjustable distance. The web is advanced intermittently and at which the frequency that varies in direct relation to the continuous speed of an input drive motor. The amount at which the web is fed during each cycle of the intermittent motion is settable by an operator by varying a continuous dial of a variable index drive.Type: GrantFiled: June 19, 1998Date of Patent: April 2, 2002Assignee: L & P Property Management CompanyInventors: Terrance L. Myers, Robert L. Vytlacil
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Patent number: 6173633Abstract: A variable length rotary cutting system for cutting sheet material in various desired cut lengths, including a knife roll and an anvil roll between which the sheet material is passed for cutting. A drive system drives the knife roll at varying speeds during a cycle of rotation and includes a drive gear and an offset gear mounted in an off-center mounting so as to be rotated at varying speeds by the drive gear. The rotation of the offset gear is transmitted to the knife roll so as to cause the knife roll to rotate at varying speeds about a cycle of rotation to enable the knife roll to cut varying lengths of the sheet material.Type: GrantFiled: April 9, 1999Date of Patent: January 16, 2001Inventor: James McLaughlin
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Patent number: 5666853Abstract: The present invention is an epicycle dual drive apparatus comprising a frame supporting an input shaft, an output shaft and an epicycle drive coupling the input shaft and the output shaft. The apparatus has dual clutches means coupled individually to the input shaft and output shaft. The epicycle drive means includes an epicycle rack pivotally secured to said output shaft at one end and a crankshaft journaled for rotation at a second end. The output shaft may have a varying rate of rotation depending on the position of the center of the crank shaft on the epicycle rack with respect to the center of the input shaft. A Cam arrangement is used for coupling the input shaft and the crankshaft. The first clutch coupled to the output shaft allows for selective engagement of the output shaft and the second clutch is coupled to the crankshaft for selective engagement of the crankshaft. Only one clutch can be engaged at a time.Type: GrantFiled: September 11, 1995Date of Patent: September 16, 1997Assignee: Doboy Packaging Machinery, Inc.Inventor: Keenan W. Stahl
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Patent number: 4596174Abstract: A high speed wire handling and cutting apparatus having particular application for efficiently providing a continuous supply of uniform dimension wire leads which are to be electrically connected (e.g. welded) to an electronic component, or the like, so that such component can be connected into an electrical circuit. The apparatus includes a wire feeding crank and an associated cross head assembly, a wire receiving crank and an associated cross head assembly, and a wire cutter disposed therebetween. The wire feeding crank and its associated cross head assembly continuously feed an accurately metered length of wire from a wire supply to the cutter, so that wire sections of precise and uniform dimension can be cut therefrom. The wire receiving crank and its associated cross head assembly embrace the sections of wire that are cut from the supply and transfer the sections from the cutter to a suitable storage facility or to the next stage in an electronic component packaging and/or manufacturing assembly line.Type: GrantFiled: December 28, 1984Date of Patent: June 24, 1986Assignee: GTI CorporationInventor: James K. LaFleur
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Patent number: 4455736Abstract: An apparatus for removing staples from paper, card and like sheet-form material is disclosed. The apparatus includes an anvil which deflects downwardly the leading end portion of a sheet inserted into the apparatus. A staple in the incoming sheet abuts against a tongue which causes the tongue to pivot rearwardly. The tongue is then moved towards the anvil to indent the paper adjacent the staple and orient the staple against the front face of the tongue. Next, the tongue is returned to a vertical position and the staple is pressed upwardly into a relieved portion of a rotary knife. The knife then slices off the top of the staple and removes the sliced off portion. Remaining portions of the staple are stripped from the paper as it is withdrawn from the apparatus.Type: GrantFiled: April 13, 1982Date of Patent: June 26, 1984Assignee: Owen Tri-cut LimitedInventor: Trevor W. Owen
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Patent number: 4404836Abstract: An improved apparatus for and a method of trimming an outwardly directed flange at the end of a metal container body and severing the ring of scrap removed employs two substantially semicircular concave cutters supported for rotation about spaced parallel axes disposed substantially in the plane of the flange to be trimmed and driven for rotation about their respective axes to engage the flange substantially simultaneously to sever the scrap ring around substantially the entire periphery of the container. The ring of scrap is cut into four pieces either by initially die-cutting or otherwise removing segments from opposed sides of the flange tangent to the trim line prior to engagement by the rotating arcuate cutters or alternatively, the arcuate cutters may sever the scrap as a complete ring and sever the ring into pieces upon continued movement in their arcuate paths past a stationary clipper block spaced below the container flange.Type: GrantFiled: December 7, 1981Date of Patent: September 20, 1983Assignee: National Steel CorporationInventor: William T. Saunders
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Patent number: 4287847Abstract: Apparatus for distributing lining material in cap shells where the apparatus has a lining material extrusion means including an extrusion passage positioned above a path of cap shells moving through the apparatus and a rotatable knife positioned above the exit end of the extrusion passage for cutting lining material as it is extruded from the passage. A drive means is provided for rotating the knife and is connected to the knife by means of a transmission means. The transmission means includes at least two sets of non-circular gear pairs with the relative angle between the sets being adjustable whereby the rotational speed of the knife may be varied.Type: GrantFiled: June 25, 1979Date of Patent: September 8, 1981Assignee: Toyo Seikan Kaisha, Ltd.Inventor: Hidehiko Ohmi
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Patent number: 4108034Abstract: Tubes made from spirally wound paper tape are fed axially and suspended off the end of an arbor. When the tube reaches a predetermined length, the free end engages a free-hanging sensor plate, the movement of which interrupts a light beam to generate a signal which actuates a timer. The timer energizes a motor for a predetermined time to cycle a snap cutter through one circular orbit to sever the tube. The cutter is stopped at its original position by a brake.Type: GrantFiled: June 13, 1977Date of Patent: August 22, 1978Assignee: Precision Paper Tube CompanyInventor: Anthony Vincent Thomas
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Patent number: 4106378Abstract: In circular saws, especially of the so-called cold type, for steel and nonferrous metals, there is a certain play in the gear drive or power transmission between the prime mover such as an electric motor and the saw blade proper. Especially during the start and during the completion of a sawing operation such play causes a temporary stopping of the blade. To avoid such play a brake mechanism with blade engaging brake shoes is provided which is energized and de-energized in response to the current consumption of the electric saw drive motor or in response to position responsive switch means, whereby the brake is effective during the start and during the stopping of the saw blade.Type: GrantFiled: September 12, 1977Date of Patent: August 15, 1978Assignee: Gustav Wagner MaschinenfabrikInventor: Gerhard Kaiser
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Patent number: 4060053Abstract: An apparatus for dispensing predetermined amounts of lining material into cap shells, particularly of the deeply recessed type, includes a conveyor including a passage for conveying cap shells at predetermined speeds, an extruder provided above and along the shell-conveying passage for extruding predetermined quantities of a lining material through a discharge passage, a blade fitted adjacent to the exit end of the discharge passage and rotatably across it for cutting the lining material, and a drive for rotating the blade in response to the conveying of the cap shells. The drive is adapted to rotate the blade at a non-uniform speed in response to the speed of shell conveyance so that its speed gradually decreases as the exterior end of the blade in its radial direction approaches the shell-conveying passage, and gradually increases as it departs from it, whereby collision between the tip of the blade and the cap shells can be completely avoided.Type: GrantFiled: October 27, 1976Date of Patent: November 29, 1977Assignee: Japan Crown Cork Co., Ltd.Inventor: Hidehiko Ohmi
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Patent number: 4003280Abstract: Apparatus for driving a web crosscutting roller with knife blade. A variable speed motor drives the roller which also is of variable speed. A control device is operable on the motor to effect selective change of the rotative speed thereof. A spring is connected to the roller to alternatively impart retardation or acceleration energy to the roller during a revolution thereof by alternate tensioning and release of the spring.Type: GrantFiled: September 19, 1975Date of Patent: January 18, 1977Assignee: BHS-Bayerische Berg Hutten-und Salzwerke AktiengesellschaftInventor: Walter Stuebinger
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Patent number: 3948133Abstract: A rotary blade cutting assembly wherein a fixed cutting blade and a rotary cutting blade are rotated into radial alignment to thereby effect a cutting operation is provided for performing sequential cutting operations on continuously moving material. The rotary blade is rotated out of alignment with the fixed blade to thereby allow the material to be cut to be positioned with respect to a cutting edge defined by the fixed blade to thereby provide for intermittent cutting of the material by the rotary blade mechanism.Type: GrantFiled: September 27, 1974Date of Patent: April 6, 1976Assignee: Trim-Master CorporationInventors: Kenneth F. Diehm, Lawrence H. Gruber