Bevel Gear Type Patents (Class 74/417)
  • Patent number: 4282765
    Abstract: An angle gear for a vehicle steering mechanism includes two bevel gears which can be axially displaced in a housing in order to adjust the rotation backlash of the gear. The axes of the bevel gears form an angle relative to each other and are connected, respectively, to a shaft leading to the steering shaft and a shaft leading to the steering mechanism on the vehicle axle. Axial motion away from the intersection of the shaft axes, which would increase the backlash, is prevented by thrust bearings supported against the housing. Axial motion in the other direction is secured against by means of shackle with spherical cup bearing surfaces that bear against the end faces of the bevel gears, which shackle is adjustable to compensate for the manufacturing tolerances of the bevel gears.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: August 11, 1981
    Assignee: Volkswagenwerk Aktiengesellschaft
    Inventors: Karl Ashauer, Fritz Blumenstein
  • Patent number: 4266436
    Abstract: A torque division gearing system is disclosed wherein two pairs of bevel gears are provided with each pair having a large bevel gear and a small bevel gear. One of the small bevel gears is arranged on an input shaft and the other small bevel gear is mounted on a second shaft parallel to the input shaft. Each of the small bevel gears drive the respective two large bevel gears arranged on a common axially displaceable shaft. The displaceable shaft is coupled by a gear stage to an output shaft.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: May 12, 1981
    Assignee: WGW Westdeutsche Getriebe- und Kupplungswerke GmbH
    Inventor: Rudi Reppert
  • Patent number: 4259878
    Abstract: The hand control mechanism has the ability to receive two alternative modes of input for the given mode of output. The mechanism includes a handled lever extending into a housing rotatably mounted to a frame, and a bell crank rotatably mounted to said housing. The handled lever can be moved longitudinally to a first or second position. The first position communicates the lever to a plurality of gears such that rotating the lever about its longitudinal axis rotates the bell crank about the housing. Placing the lever in the second position the bell crank is restrained from rotating free of the housing which can be rotated directly by the lever, rotation of the bell crank being the assigned mode of output.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: April 7, 1981
    Assignee: Deere & Company
    Inventor: John F. Anderson
  • Patent number: 4240256
    Abstract: A first embodiment incorporating an actuator including a restraint link adapted to be connected with a pivotal carrier arm for a force transfer gear interposed between the crankshaft for an expander portion of a Stirling engine and a crankshaft for the displacer portion of the engine, said restraint link being releasably supported against axial displacement by releasably trapped hydraulic fluid for selectively establishing a phase angle relationship between the crankshaft and a second embodiment incorporating a hydraulic coupler for use in varying the phase angle of gear-coupled crankshafts for a Stirling engine whereby phase angle changes are obtainable.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: December 23, 1980
    Inventors: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch, Allan R. McDougal
  • Patent number: 4228656
    Abstract: A hot gas engine in which the expander piston of the engine is connected to an expander crankshaft. A displacer piston of the engine is connected to a separate displacer crankshaft which may or may not be coaxial with the expander crankshaft. A phase angle control mechanism used as a power control for changing the phase angle between the expander and displacer crankshaft is located between the two crankshafts. The phase angle control mechanism comprises a differential-type mechanism comprised of a pair of gears, as for example, bevel gears, one of which is connected to one end of the expander crankshaft and the other of which is connected to the opposite end of the displacer crankshaft. A mating bevel gear is disposed in meshing engagement with the first two bevel gears to provide a phase-angle control between the two crankshafts. Other forms of differential mechanisms may be used including conventional spur gears connected in a differential type arrangement.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: October 21, 1980
    Inventors: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch, William F. MacGlashan, Jr.
  • Patent number: 4191063
    Abstract: A servo device is disclosed intended for amplifying the force in a mechanical control apparatus, movable in two opposite directions when said apparatus is displaced in either direction, comprising two gears rotatably disposed in a housing and coaxial with a rotatable shaft. The gears are driven in counter-rotation by a conical pinion or by two counter-rotating cylindrical pinions in driving relation to a rotatable servo motor. A nut is screwably arranged on screw splines on the shaft between the gears. When screwed along said splines, the nut comes into frictional contact via annular friction surfaces with corresponding annular surfaces on the gears. The nut, the splines and one of the gears make a releasable driving connection with each other. Radially directed arms are attached to the shaft and the nut with control cable attachment means for transmitting the input operating force to one arm while an additional force is contributed from either gear via the shaft and splines to the other arm.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: March 4, 1980
    Assignee: AB Volvo Penta
    Inventor: Kjell-Idar Borgersen
  • Patent number: 4188833
    Abstract: A transmission is disclosed for use in ship drive arrangements. The transmission comprises a gear train having three main axes inclined and in parallel with respect to each other. The gear wheels of the gear train are selectively coupled to the main axes to transfer motive power from the input side of the transmission to the output side. The system affords space saving arrangements depending on the type of motor that is employed for the drive assembly.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: February 19, 1980
    Assignee: Zahnradfabrik Friedrichshafen AG
    Inventors: Siegfried Krauss, Gerhard Maurer
  • Patent number: 4171649
    Abstract: A variable speed and direction power transmission attachment for driving the cutting tool carriage of a lathe or the like, the attachment having sets of intermeshing male and female cog gears. Certain of such sets each comprises a face gear having a plurality of concentric rows of tooth socket elements formed therein. A male cog gear is selectively settable to mesh with any of such rows to change the gear ratio. By changing the combined setting of different sets of gears, a wide variation in overall gear ratio may be obtained to provide many different feeding speeds of the carriage, suitable for general cutting and for screw thread cutting. A reversing mechanism, also constructed of intermeshing cog gears, enables the direction of drive to be reversed or the drive to be disconnected to permit manual drive of the carriage.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: October 23, 1979
    Inventor: Carlester Lindsay
  • Patent number: 4149429
    Abstract: An adjustable gear train is disclosed wherein play in a train of intermeshing bevel gears is accommodated by forming one of the gears of two radially separated coaxial parts which are axially movable with respect to one another, one of the parts being gear toothed and the other of the parts forming a shaft for the toothed part.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: April 17, 1979
    Assignee: JENAer Glaswerk Schott & Gen.
    Inventor: Helmut Pfenning
  • Patent number: 4148262
    Abstract: Drive system for a railway vehicle. In a railway vehicle utilzing a high speed motor whose output shaft is arranged generally parallel to the direction of movement of the vehicle, there is provided a gearing system for connecting said motor to a driven axle of the vehicle of such nature that only a minimum of unsprung mass is present and said gearing occupies only a small amount of space. In general, the motor drives through at least two series connected gear reduction units and the output of the second thereof drives a hollow shaft surrounding the vehicle axis and flexibly connected thereto. Thus, the entire drive system excepting only for the flexible connection to the axle may be mounted on the spring supported portion of the vehicle.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: April 10, 1979
    Assignee: Carl Hurth Maschinen-und Zahnradfabrik
    Inventor: Johann Eichinger
  • Patent number: 4135411
    Abstract: The invention is directed to a gear transmission for an angle tool such as a grinder, polisher, sander, angle screwdriver or the like having a drive motor for driving an output spindle shaft. The motor has a drive shaft defining a longitudinal axis transverse to the output spindle shaft. The gear transmission connects the drive shaft of the motor to the output spindle shaft and includes a first stop and a second stop on one of the shafts. A first gear is mounted on the one shaft so as to abut against the first stop and a second gear mounted on the other one of the shafts. A resilient annular bearing is tightly held between the second stop and the first gear; and, a cut-shaped retainer is disposed on the one shaft for containing the resilient annular bearing.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: January 23, 1979
    Assignee: The Black and Decker Manufacturing Company
    Inventor: Lorenzo E. Alessio
  • Patent number: 4127041
    Abstract: A gear generally made of plastics for use in such precision devices as timepieces and the like and having improved gear teeth with reduced contacting noises is provided. Each tooth includes means for yielding an elastic deformation of the tooth so that, upon applications of fluctuated load thereto, the fluctuation of load will be cancelled by the elastic deformation of the tooth, whereby a remarkably quiet contacting movement with opposing gear can be achieved.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: November 28, 1978
    Inventor: Mikiharu Imazaike
  • Patent number: 4126096
    Abstract: The invention relates to a system of support legs for a table top wherein at least two legs are hingedly assembled to the table top and are connected to a driving device allowing the height of the table top to be adjusted with respect to a supporting surface, each leg comprising two arms hingedly connected at their adjacent ends to a nut screwed on a threaded rod controlled by said driving device for modifying the angular opening of said two arms with respect to one another.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: November 21, 1978
    Inventor: Yvette J. D. Arnaud Malavard
  • Patent number: 4123857
    Abstract: A vertical crankshaft engine is the power source of a snowblower. Two horizontal drive belts extend from a double pulley arrangement on the engine crankshaft. One drive belt extends to the vertical input shaft of the traction gear case to power the snowblower wheels. The other belt extends to the vertical input shaft of a right angle gearbox at one axial end of the collector assembly to transmit rotary motion to the collector assembly. A horizontally pivotal idler pulley selectively tensions the belt providing the motive power for the collector assembly and a clutch assembly is associated with the traction axle assembly to selectively power the snowblower wheels.The right angle gearbox housing is made in two complementary pieces which are held together by a type of snap ring and when assembled is bolted to one end of the housing of the collector assembly.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: November 7, 1978
    Assignee: Gilson Brothers Company
    Inventors: Edward W. Enters, Roger J. Bacon
  • Patent number: 4118997
    Abstract: 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: Grant
    Filed: August 15, 1977
    Date of Patent: October 10, 1978
    Assignee: Rolls-Royce Limited
    Inventors: Clifford Stanley Woodward, David Roberts McMurtry
  • Patent number: 4111066
    Abstract: This invention relates to improved traction control means for a mobile vehicle such as a tractor or excavating machine having a pair of laterally spaced, endless crawler tracks, each of which is powered independently by its own traction motor for generally curvilinear travel of the vehicle at variable speeds in either the forward or reverse direction.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: September 5, 1978
    Assignee: Joy Manufacturing Company
    Inventor: Frank B. Kendrick
  • Patent number: 4068470
    Abstract: Drive means for connecting a gas turbine engine to its accessories are so constructed as to allow the accessories to be selectively positioned to any one of several predetermined circumferential positions about the perimeter of the engine. This feature permits convenient mounting of the same engine upon vehicles demanding radically different engine mounting arrangements.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: January 17, 1978
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Donald F. Sargisson, Arthur P. Adamson
  • Patent number: 4068536
    Abstract: A remotely operable manipulator orients an end-effector mounted to one end of a plurality of serially connected drive shafts. The manipulator has two sets of concentric shafts with individual shafts within each set independently rotatable about an axis common to the set. The common axes of the two sets are obliquely oriented with respect to each other; and a third shaft, rotatable about a third axis, is angularly oriented and connected to the most remote set of shafts. The preferred embodiment has the axes of the two sets and the third shaft intersecting at a single point and permits orientation of the third axis normal to any point upon the spherical surface of a spherical sector generated by the combined movement of the plurality of shafts.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: January 17, 1978
    Assignee: Cincinnati Milacron Inc.
    Inventor: Theodore Hahn Stackhouse
  • Patent number: 4062082
    Abstract: A kitchen tool for being installed in a kitchen sink, counter, cabinet, the tool serving to scrub pots and pans while being washed, the tool being powered by an electric motor so to eliminate manual labor, and the tool including a chuck for selectively being fitted with interchangeable scrubbing brushes so to suit more coarse or fine scrubbing or shaped to fit different types of pots and pans.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: December 13, 1977
    Inventor: Charles M. Azzopardi
  • Patent number: 4054966
    Abstract: An adjustably lockable hinge for motor-vehicle seats comprises first and second hinge elements and a pintle between these elements defining a pivot axis therefor. A first arcuate row of equispaced first abutments is carried on the first element spaced from the main axis and facing axially in one direction. A body carrying a second arcuate row of equispaced second abutments facing axially from the body opposite to the one direction and axially aligned with the first row is rotationally linked to the second element. The abutments of the second row are spaced apart by a predetermined distance different from the spacing between the first elements, so that only a limited number of the second abutments can mesh at one time with the first abutments. An adjustment device rotatable about the axis relative to the elements is engageable with the body for precession of the second row on the first row. These rows may be annular arrays of gear-type teeth and the body may be a ring around the hinge pintle.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: October 25, 1977
    Assignee: Keiper K.G.
    Inventors: Ulrich Putsch, Gerd Klingelhofer
  • Patent number: 4047448
    Abstract: Head for a robot or manipulator comprising a control casing and at least two shafts perpendicular to each other, with corresponding external members rotatably driven from separate control servo motors, one shaft being rigid with one of said members which supports the other shaft, said servo motors are fixedly mounted in said casing so as to drive at least two coaxial shafts, while the driving of at least one of said perpendicular shafts from one of said coaxial shafts takes place through a bevel gear of which the input pinion is rigid with this one coaxial shaft and the output pinion is rigid with the shaft concerned.This head construction permits assembling the servo motors into a readily accessible unit by providing said coaxial shafts with concentric toothed members in meshing engagement with driving pinion driven in turn from said servo motors, and is applicable notably to robot heads having two or three degrees of freedom.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: September 13, 1977
    Assignee: SOFERMO
    Inventors: Pierre Pardo, Francois C. Pruvot
  • Patent number: 4036076
    Abstract: Adjusting, locking, and pre-loading means for a bevel gear or the like exerting axial thrust on the shaft which the gear is made fast to. The adjusting means is a large nut which is rotatable in its mating threads to move a mount for the gear shaft so as to locate the position of the gear's plane of rotation. The locking means is that portion of a locking and pre-loading bolt which bolts the nut to the non-rotatable mount to set the located position of the plane of rotation. The pre-loading means is that portion of the same bolt which exerts an opposite force on the nut and on its mating threads, stressing the two in opposite ways so as to pre-load the threads in the same direction in which the gear thrust is exerted, enabling the axial thrust of the gear to be additive to the pre-load rather than tending to unload the pre-load, thus permanently fixing the set location of the plane of rotation of the gear with no free play.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: July 19, 1977
    Assignee: International Harvester Company
    Inventor: John C. Anderson
  • Patent number: 4034621
    Abstract: A bevel gear drive assembly for driving a track-type vehicle. The assembly is arranged and mounted within a casing such that thrust loads due to the natural separating forces between the various gears of the assembly are neutralized. The casing components are not exposed to an imbalance of forces.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: July 12, 1977
    Assignee: Caterpillar Tractor Co.
    Inventor: Arthur J. Ritter, Jr.
  • Patent number: 4027553
    Abstract: An angle gear drive arrangement for a steerable propeller on a watercraft or other type of vehicle in which a driven shaft is supported in a gear housing and is driven by a pair of bevel gears. The driven bevel gear of the pair of bevel gears is mounted on a hollow shaft which is supported independently from a driven shaft. The hollow shaft encircles and is coupled to the driven shaft. The hollow shaft is supported at one end by a combined radial-axial bearing arrangement wherein one of the bearing members absorbs both radial and axial forces while the other bearing absorbs only axial forces.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: June 7, 1977
    Assignee: Carl Hurth Maschinen- und Zahnradfabrik
    Inventors: Johann Eichinger, Wilhelm Schwibach
  • Patent number: 4017979
    Abstract: A bevel gear shimming gage is provided for determining the shim sizes for the bearings supporting the gears within a bevel gear housing. A first main housing abuts against a first bearing, a first bearing support abuts against a second bearing and a first gaging rod is received through registering apertures in the first bearing support and the first main housing and provides a means whereby the axial distance between a gaging rod reference point and a first main housing reference point may be determined. In addition, the gaging rod provides a means whereby the axial distance between reference points on the gaging rod and the bearing supports may be determined.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: April 19, 1977
    Assignee: Teledyne Industries, Inc.
    Inventor: Herman N. Lenz
  • Patent number: 3985238
    Abstract: An apparatus, or so-called industrial robot, grasping an object, transferring the same from a position to the other and performing preselcted actions at that position. The apparatus belongs to a technically different category from the conventional robots of circular cylindrical coordinates type and spherical coordinates type which are widely used in the industrial fields today. A joint shaft is arranged at the base end of an arm so that it is connected to a power unit. On the forward end of said arm is arranged other joint shaft so that other arm is jointed to the first mentioned arm at said other joint shaft. Said first mentioned arm also carries at the forward end thereof a further joint shaft for pivotably connecting a further arm. A mechanism for grasping the object to be transferred and/or handled is mounted on the forward end of said further arm.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: October 12, 1976
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Kunihiro Nakura, Takayoshi Yoshimura
  • Patent number: 3977268
    Abstract: This invention relates generally to textile carding machines and the like, and more particularly to a drive apparatus for driving a feed roll on such a machine so that a constant drive speed is provided and so the drive speed may be conveniently altered by exchanging gears of different ratios, wherein the drive apparatus includes a bracket having at least one vertical side member and a transfer shaft adjustably carried within the vertical side member. A first gear, which is driven by a drive bevel gear carried on a main input shaft, is carried on the transfer shaft, and a draft change gear is removably carried on the transfer shaft for rotation with the first gear. The draft change gear is meshed with a feed roll change gear which is carried on the feed roll drive shaft for driving the feed roll.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: August 31, 1976
    Inventor: William B. Seabrook
  • Patent number: 3964345
    Abstract: A hollow vertical housing contains vertical output shaft and gearing. A rotatable handle disposed on the outside of the housing, when rotated, by means of the gearing causes the shaft to rotate at such higher speed. Cutter blades in a hollow container which is sealable by removable lid can be rotated by the shaft to produce the desired blender action. Flywheel means causes the shaft to continue to rotate at essentially constant speed as new material is added for blending. In addition continued rotation of the shaft enables a quick release mechanism to disengage.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: June 22, 1976
    Assignee: The Raymond Lee Organization, Inc.
    Inventor: Jacob J. Le Van
  • Patent number: 3943790
    Abstract: The invention contemplates a marine outboard gear assembly, usable in an outboard motor or an inboard-outboard drive, and featuring (a) constant drive of the meshing gears which transfer power to the propeller-shaft axis, and (b) selective spring-clutching direct to the propeller shaft, thereby (c) utilizing the meshing gears for lubricant circulation as long as the engine is operating and whether or not the clutch is engaged and (d) reducing to an absolute minimum the drag and inertial effects operative upon the propeller shaft when the boat is moving in the declutched condition, i.e., propeller windmilling. Also featured is a particular subassembly of gear and clutch parts on the propeller shaft whereby desired axial clearance can be readily pre-adjusted and selected, prior to assembly to the gear case.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: March 16, 1976
    Assignee: Brunswick Corporation
    Inventor: James A. Meyer
  • Patent number: 3943789
    Abstract: A horizontal load shaft, projecting from a gear housing, is driven from a hydrostatic motor via a bevel pinion meshing with a bevel gear fixed to the shaft inside the housing. The motor and the bevel pinion form a unit detachably mounted on the gear housing, with the bevel pinion projecting inwardly from above.
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: March 16, 1976
    Assignee: Zahnradfabrik Friedrichshafen AG
    Inventor: Egon Mann
  • Patent number: 3942387
    Abstract: An angle gear box for a helicopter main rotor drive has a more compact arrangement of the usual gear train elements of the input section as well as a freewheel unit. The input section gear train includes a power input shaft mounted on bearings and having a bevel pinion and a power output shaft mounted on bearings and having a bevel gear meshing with the pinion. The output shaft has an axial chamber in which the freewheel unit is housed and from which it can be readily removed without disturbing the mounting elements of the gear train and the critical relationship of the high speed bevel gears.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: March 9, 1976
    Assignee: United Technologies Corporation
    Inventors: Robert A. Stone, Ray D. Leoni
  • Patent number: 3937093
    Abstract: Disclosed herein is a lower unit for a marine propulsion device including a drive shaft housing, a gearcase housing connected to the end lower of the drive shaft housing and having an interior wall defining an elongated, axially extending cavity, a propeller shaft extending axially in the gearcase housing cavity and carrying a propeller, and a hollow bearing carrier member generally encircling the propeller shaft and carrying a bearing for rotatably supporting the propeller shaft in the gearcase housing cavity. The bearing carrier member is removably fastened by bolts or the like to a resilient, annular anchoring element which fits into and frictionally engages an internal annular groove in the gearcase housing to retain the bearing carrier against the axial displacement relative to the gearcase housing and to minimize rotation of the bearing carrier relative to the gearcase housing.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: February 10, 1976
    Assignee: Outboard Marine Corporation
    Inventors: Ronald G. Johnson, Gerald E. Kashmerick
  • Patent number: RE28926
    Abstract: A new gear design providing increased load-carrying ability while being particularly adaptable to manufacture by lower-cost forming methods with powder metal or plastic materials. The teeth of the gears are unconventional in appearance, having a generally elliptical face outline formed by oppositely curved root and topland lines so that the height of each tooth face is maximum at midpoint and reduces substantially to zero at the length extremeties. The teeth are substantially inclined .Iadd.depthwise .Iaddend.to the pitch .[.line.]. .Iadd.element .Iaddend.and each gear has a large and small end, the tooth slots being invisible when the finished gear is viewed along its axis from the large end. The disclosure includes constructions and calculations for designing conjugate pairs of such unconventionally-shaped gears having preferred running characteristics.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: August 10, 1976
    Assignee: The Gleason Works
    Inventor: Meriwether L. Baxter, Jr.