Patents Examined by Leonard H. Gerin
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Patent number: 4125037Abstract: A transmission means for drive by a prime mover, particularly the engine of an automobile, comprising a torque converter for direct drive by the prime mover, a continuously variable speed belt drive comprising a belt or chain entrained around two variable pitch pulleys driven directly by the torque converter and a change-direction gearing driven by the belt drive and driving a rotary output, e.g. the road wheels of an automobile, the gearing having a neutral state in which the output is disconnected from the belt drive.Type: GrantFiled: March 18, 1977Date of Patent: November 14, 1978Assignee: GKN Transmissions LimitedInventors: Bertram J. Palmer, Herbert K. Steuer
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Patent number: 4123947Abstract: The present invention pertains to a non-metallic transmission chain for high loads which comprises a plurality of non-metallic links of a material having a tensile strength of at least 8500 psi and a plurality of associated glass fiber reinforced pins with a tensile strength of at least 1800 psi and flexure modulus of not less than 1,000,000 psi. The superior strength and qualities of the pin provide significant reduction in the undesired side arm flexing of the links.Type: GrantFiled: August 26, 1977Date of Patent: November 7, 1978Assignee: Rexnord Inc.Inventors: Larry C. Smith, Robert J. Webers
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Patent number: 4123946Abstract: An endless power transmission belt and method of making same is provided wherein such belt is defined by a helically wound elongated strip of polymeric material having load-carrying means extending throughout its length with the strip having adjoining turns thereof bonded together so that the polymeric material thereof is a homogeneous mass and the belt is a unitary structure.Type: GrantFiled: May 2, 1977Date of Patent: November 7, 1978Assignee: Dayco CorporationInventor: Gerald C. Hollaway, Jr.
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Patent number: 4124107Abstract: A multistage freewheel for bicycles, comprising a plurality of at least two sprockets which are divided into at least a low speed stage and a high speed stage which are rotatable independently with respect to a support. Each of the sprockets is separately applied with a rotary resistance so that a single sprocket may be of less resistance thereby securing safety in the operation of the bicycle.Type: GrantFiled: November 8, 1976Date of Patent: November 7, 1978Assignee: Shimano Industrial Company LimitedInventor: Masayoshi Kine
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Patent number: 4121476Abstract: A variable rate frictional drive coupling is provided between a drive shaft and a driven member. The drive coupling will dampen torsional vibrations from the drive shaft and will transmit driving torque from said shaft to the driven member. The coupling comprises a cam and leaf springs positioned in such a way that as the shaft deflection increases, the load increases and the moment arm point of contact between the cam and the leaf springs changes such that no natural frequency is produced. The frictional forces between the leaves of the leaf spring change inversely to the spring force required to drive the driven member.Type: GrantFiled: May 16, 1977Date of Patent: October 24, 1978Assignee: Caterpillar Tractor Co.Inventor: James T. Hammond
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Patent number: 4121481Abstract: A device at a converter with a tilting drive, a tilting trunnion on which the tilting drive is suspended, and a torque support resiliently supported on the base, also has an adjustment means, by which the tilting drive can be fixed relative to the base during blowing.Type: GrantFiled: December 10, 1976Date of Patent: October 24, 1978Assignee: Vereinigte Osterreichische Eisen-und Stahlwerke - Alpine Montan AktiengesellschaftInventors: Ernst Riegler, Manfred Schmidt
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Patent number: 4121475Abstract: A tension control device is disclosed which is particularly well suited to chain drive systems subjected to cyclic forces. The device includes a tension-setting adjustment mechanism affixed to a pivoted mounting plate and an arm means pivoted at one end, at the same location as said mounting plate, supporting a sprocket for engagement with the chain. Biasing and stop means coact with the mounting plate and the arm means to urge them apart and limit the maximum and minimum separation therebetween.Type: GrantFiled: July 21, 1977Date of Patent: October 24, 1978Assignee: Sperry Rand CorporationInventor: Irwin D. McIlwain
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Patent number: 4121482Abstract: A W-N gear which has a surface strength at least nearly maximized for a given addendum and minimum pressure angle is realized by selecting a mean radius for the convex and concave circular arcs of the tooth profile in an appropriate range. Also, a dual=line mesh W-N gear of the character described which has a requisite face width minimized is obtained by selecting a mean arc radius which lies in the range referred to above and enables the addendum and dedendum points of meshing contact to appear at equal angle intervals.Type: GrantFiled: August 10, 1977Date of Patent: October 24, 1978Assignee: Kabushiki Kaisha Hasegawa HagurumaInventors: Shoichi Ishikawa, Kiyoshi Kotake, Seishi Honma
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Patent number: 4118996Abstract: An improvement in a clutch control of a reversing gear arrangement for a Z-drive for watercrafts. The reversing clutch coupling includes two beveled pinion gears which act onto a common driven bevel gear. The reversing coupling consists of two alternately engageable friction couplings, the friction members of which are compressed onto one another by rolling elements to reinforce the engagement force. The friction members are movable against a resilient force provided by flexible elements, such as cup springs which engage the opposite side of the clutch pack from the friction members.Type: GrantFiled: March 16, 1977Date of Patent: October 10, 1978Assignee: Carl Hurth Maschinen- und ZahnradfabrikInventor: Johann Eichinger
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Patent number: 4118997Abstract: A bevel gear assembly for transmitting high horsepowers between a first shaft and a second shaft the axis of which lies at an angle to the first shaft includes a main bevel gear mounted on the first shaft and having two circumferential rows of teeth. The teeth face axially in opposite directions and a pair of secondary bevels are provided meshing respectively with the two rows of teeth. The secondary bevels are coupled to drive the second shaft.Type: GrantFiled: August 15, 1977Date of Patent: October 10, 1978Assignee: Rolls-Royce LimitedInventors: Clifford Stanley Woodward, David Roberts McMurtry
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Patent number: 4119187Abstract: A clutch release device for use with a thrust bearing has a sliding sleeve formed as a cylinder with a flange extending radially outward, and a transition shoulder between the cylinder and flange; a radially extending reference plane extends through said shoulder, and said flange has portions thereof displaced axially, with said reference plane being equidistant from said flange and said displaced portions.Type: GrantFiled: December 2, 1976Date of Patent: October 10, 1978Assignee: SKF Industrial Trading & Development Company B.V.Inventors: Horst Manfred Ernst, Armin Olschewski, Rainer Schurger, Lothar Walter, Manfred Brandenstein, Erich Burkl
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Patent number: 4117739Abstract: A uni-directionally rotated clutched driving gear having arcuate segments of gear teeth acts sequentially on two idler gears to effect a two-speed bi-directional rotation of a driven gear. The driven gear may be attached to the drive shaft of the character wheels in a recording calculator.Type: GrantFiled: October 13, 1977Date of Patent: October 3, 1978Assignee: Triumph Werke Nurnberg A.G.Inventors: Heinz Meier, Egon Zurawski, Paul Greppmaier
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Patent number: 4117742Abstract: A pair of balancing weights are mounted on opposite sides of the center line of the rotor for movement about the axis of the rotor. The weights are automatically locked against movement about the axis of the rotor when the rotor is rotating below critical speed and automatically released for free movement about the axis of the rotor when the rotor is rotating above critical speed. The weights are exemplified as roller cages. The balancing weights are variously locked by mechanical clutches actuated at critical speed. The clutching for the weights is either individual or such that the weights are necessarily locked against movement and released simultaneously. Centrifugal force is used to control the clutches.Type: GrantFiled: July 29, 1977Date of Patent: October 3, 1978Inventor: Philip C. Stein
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Patent number: 4116084Abstract: A gear disengaging mechanism for use in a movable toy which mechanism disengages automatically the engagement between a first gear receiving the rotation from a driving section and a second gear being pushed by a spring. The bearing hole for the shaft of the second gear is a slot in which one end portion of the shaft is moved. The shaft that is moved in the bearing hole is urged toward one side by the spring member one end of which is fixed to a frame body, thus gears are releasably engaged together. When a gear on the driven side is forcibly stopped, the gear shaft is shifted along the bearing hole against the force of the spring member and the engagement of gears is released. Further, between the driving section and the driven section is disposed a gear changing mechanism with which the gear change is carried out by moving a gear shaft in its axial direction.Type: GrantFiled: June 30, 1977Date of Patent: September 26, 1978Assignee: Alps Shoji Co., Ltd.Inventor: Akio Masuda
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Patent number: 4116081Abstract: A sprocket for driving a chain has a pocket between adjacent teeth at least partially defined by an arcuate root surface and oppositely disposed topping surfaces. The root surface, in turn, is defined by a radius centered on the pocket center line having a length at least as great as the sum of the radius of the chain bushings plus one half the backlash of the chain. The topping surfaces lie radially outward from the respective ends of the root surface and are defined by radii centered at points circumferentially spaced from the pocket. The topping surfaces may extend outwardly from the respective ends of the root surface and at the point of merger be tangent therewith.Type: GrantFiled: May 25, 1977Date of Patent: September 26, 1978Assignee: Caterpillar Tractor Co.Inventors: Richard W. Luttrell, Robert J. Purcell
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Patent number: 4116086Abstract: The present invention is addressed to a changeable gate plate means for use with lever control devices which have a mounting plate with an opening therein through which the lever arm of the control devices passes. The changeable gate plate means of the present invention comprises a cover means adapted to mount on said mounting plate of the control device and includes an opening therein substantially co-extensive with the opening in the mounting plate. The cover plate includes a gate plate receiving means located adjacent said opening for removably positioning a gate plate at said opening. The gate plate is positioned within the cover opening and receiving means and includes at least one detent in which the lever arm may travel. Means are included for mounting said cover to the mounting plate to complete the assembly in cooperation with the lever control device.Type: GrantFiled: November 26, 1976Date of Patent: September 26, 1978Assignee: Incom International, Inc.Inventors: William D. Langford, Dale F. Leuenberger, Howard A. Hazlett
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Patent number: 4116080Abstract: An infinitely variable cone-pulley transmission arrangement which includes an input shaft, a drive output shaft and at least a pair of cone-pulleys arranged on each shaft with a transmission element circulating between the respective pairs of pulleys. At least one cone-pulley on each shaft is mounted for axial displacement relative thereto in response to the movement of a transmission ratio setting member. A rotary connection is provided at at least one of the cone-pulleys for generating a torque-dependent and ratio-dependent pressing forces between the cone-pulleys and the transmission element. The rotary connection includes a presser device having a plurality of pairs of spaced oblique faces of variable gradient which lie peripherally opposite one another with rolling elements being interposed between each of the pair of oblique faces. An axially mounted support ring is arranged on the shaft with the rolling means being supported at least indirectly against an adjacent cone-pulley and the support rings.Type: GrantFiled: September 3, 1976Date of Patent: September 26, 1978Assignee: P.I.V. Antrieb Werner Reimers KommanditgesellschaftInventor: Heinrich Berens
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Patent number: 4114471Abstract: An adjustable handle bar assembly for a physically-guided implement such as a tiller having a handle bar rotatively mounted in a handle bar socket provided by a curvilinear panel web end and curvilinear margins of recesses formed in side flanges of a handle panel. An adjustable connection between the handle bar and the side flanges selectively adjusts the angular disposition of the handle bar in its socket. The rotative axis of the handle bar in the handle bar socket is defined by the curvilinear panel web end that embraces one side of the handle bar and the curvilinear margins of the recesses in the side flanges which embrace the other side of the handle bar. The adjustable connection includes laterally spaced arms secured to the handle bar, a bracket secured to each of the side flanges, and fasteners detachably connecting the spaced arms of the handle bar to the brackets.Type: GrantFiled: November 8, 1976Date of Patent: September 19, 1978Assignee: Atlas Tool & Manufacturing Co.Inventor: Kenneth W. White
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Patent number: 4112786Abstract: There is disclosed a housing assembly for gear heads or speed reducers and the like, and a method of assembly of such devices, which eliminates all drilling, tapping, fasteners, shims, gaskets and sealants, as well as doing away with assembly skill, which has been required heretofore to set proper bearing clearance. It is applicable to the assembly of any rotating element, such as a worm wheel, into a housing. The housing may have a bore for the introduction of the rotating element on one side only. The bore is closed by a side plate which fits into the housing with a small clearance and is sealed with an ordinary O-ring. After the rotating element and its bearings have been inserted into the housing and side plate, the side plate is pressed into the bore until zero axial clearance is attained.Type: GrantFiled: January 19, 1977Date of Patent: September 12, 1978Assignee: Robbins & Myers, Inc.Inventor: Richard J. Thomas
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Patent number: 4112782Abstract: This is a compatible gear system and consists of providing an odd number of teeth on each gear, a minimum of five or more. The size and shape of the gear and its teeth are determined by laying out a regular polygon having an odd number of sides, corresponding to the number of desired gear teeth with the distance from the center of the regular polygon equal to the pitch radius of the desired gear. Then a circle is drawn about each polygon corner with a radius equal to one-fourth of the side of the polygon, this series of circles determining the shape and size of the gear teeth. Next, an intermediate series of circles is provided with their centers at the midpoint of the polygon sides and, of necessity, the intermediate circles are tangent to the teeth determining circles. Lines drawn through the points of tangency between each intermediate circle and the adjacent corner circles are necessarily parallel.Type: GrantFiled: June 21, 1977Date of Patent: September 12, 1978Inventor: Max Mullins