Abstract: A gearing system includes a pair of gear support plates (5,10) arranged to rotate about parallel but offset axes (9,14) with the plates extending parallel to each other in parallel radially extending planes. Each plate includes axially extending teeth (40,45) having concave (43,45) and convex opposed surfaces. The teeth are interdigitated axially such that various pairs of interdigitated teeth will be in cooperating surface contact. Rotation of each support plate about its own axis causes the teeth to orbit relative to each other and engage in a driving relationship in a smooth manner, with the convex portion of certain teeth engaging smoothly with the concave portion of adjacent teeth. In one embodiment, the gear teeth take the form of section of lune shaped elements. In another embodiment, the gear teeth take the form of truncated involutes. In still a further embodiment, the teeth are constituted by multi-faceted polygons.

Abstract: A scroll-type compressor having a unique coupling arrangement for driving the movable scroll is provided. The side of the base portion of the movable scroll opposite the spirals has a plurality of recesses disposed in a circular pattern. A support plate having a plurality of complementary recesses therein is positioned such that its recesses face the recesses in the movable plate. The diameters of the first and second recesses are different from one another. Coupling members are disposed between each facing pair of recesses. The coupling member has small and large diameter portions. The small diameter portion extends into its associated smaller recess while the large diameter portion extends into its larger associated recess. With this arrangement, the required width of the recess bearing portion of the support plate may be reduced relative to conventional designs which has several advantages.

Abstract: A gerotor pump is disclosed of the fixed-axis type, including an outer rotor (33) and an inner rotor (35). The gerotor is driven by a drive shaft (25) through a driver (51) including a pair of drive members (57), each having a cylindrical drive surface (59). The inner rotor (35) defines a pair of diametrically opposed recesses (61), each including a driven surface (63). With the drive members engaging the driven surfaces, the inner rotor is permitted to deviate from perfect concentricity with the drive shaft to the extent necessary to result in minimum torque input to drive the rotors, without binding occurring between the rotors, as typically occurs if the inner rotor is forced to remain concentric with the drive shaft.

Abstract: A coupler interconnecting a wheel speed transducer with a rotating wheel of an aircraft. A cylindrical housing has a pair of orthogonal passages extending therethrough. One of such passages communicates with a slot within one end of the housing, the slot being adapted to slidingly receive a blade from a drive cap of the wheel. The other of the passages slidingly receives a member having a hub extending therefrom for engagement with the rotatable shaft of the wheel speed transducer. Various types of possible misalignment are accommodated and corrected by the capability of the blade to slide within the slot and of the member to slide within its passage. The coupler substantially eliminates backlash and accommodates high temperature operation.

Abstract: A progressive cavity drive train which includes a progressive cavity device and a coupling for converting the complex motion of the rotor into simple rotation. The coupling includes two offset shafts coupled to one another by offset lug members. The drive train can be used to convert fluid pressure into rotation of a drill bit in a drilling apparatus. Alternatively, the drive train can be used to convert driving rotation from a motor or engine into fluid pumping action of the progressive cavity device.

Abstract: A shaft coupling allowing for an offset of axes comprises radially displaceable members and preferably serves to couple a journal of a printing cylinder to a drive shaft and comprises positively interengaging coupling parts, which are connected to the respective shafts to be coupled, and an assembly for forcing said coupling parts against each other. A radially displaceable outer coupling disk of the shaft coupling is connected to a member which is formed with a central bore, an axially displaceable bolt extends into and is centered in said bore and when the shaft coupling is disengaged said bolt will be urged by a spring into a central bore or aperture of the drive shaft or of a member which is connected to the drive shaft.

Abstract: The present invention is a compressor using an Oldham-type assembly functioning as a piston to provide a compressing pump. An orbiting plate is eccentrically mounted on the crankshaft, and a compressing pump body is fixed within the interior of the housing. An Oldham piston is disposed within the compressing pump and has tabs which engage slots on the orbiting plate. The side walls of the pump body prevent movement of the Oldham piston in a first direction so that the orbiting of the plate causes the piston to reciprocate in a second, orthogonal direction. Suction valves on the piston control entry of refrigerant into the compressing pump, and discharging valves control refrigerant discharge.

Abstract: The arc gear with a rotary transmission of 1:1 has an inner toothed toothwheel, an outer toothed toothwheel, each connected to a shaft, one of the shafts being for drive and one for output. The shafts are arranged eccentrically with an eccentricity and parallel to one another. There are provided concave power transmission surfaces, with a first radius of curvature measured from the centers of first circles, on teeth of one of the toothwheels, and convex power transmisison surfaces, with a second radius of curvature measured from the centers of second circles, on teeth of the other of the toothwheels, both of the toothwheels having the same number of power transmission surfaces. Two of the concave power transmission surfaces lie on the same one of the first circles. Two of the convex power transmission surfaces lie on the same one of the second circles. The first radius and the first circles are bigger than the second radius and the second circles.

Abstract: A scroll type fluid transferring machine comprises a stationary scroll having a wrap member, a movable scroll having a wrap member combined with the stationary scroll, a driving means for causing the movement of revolution of the movable scroll along a circular orbit so as to make the movable scroll line-contact with the stationary scroll whereby a closed space is produced between the stationary and movable scrolls, and an Oldham ring for maintaining the stationary and movable scrolls at predetermined positions while the movement of rotation of the both scrolls are prevented, wherein the Oldham ring is formed by injection-molding at least one thermoplastic resinous material selected from the group consisting of polyphenylene sulfide, polyetheretherketone, polyetherketone, wholly aromatic polyester, polysulfone, polyarylsulfone, polyethersulfone, polyetherimide, polyoxybenzyliden polyketonsulfide, polythioethersulfone and polyarylate.

Abstract: A fluid scroll machine including two scrolls eccentrically combined with each other and defining a hermetically closed space which moves as the scrolls are rotated synchronously with each other, wherein the central parts of the vortical portions of the scrolls are notched so that an opening is provided between the scrolls; and an Oldham's coupling for transmitting the torque of one of the scrolls to the other is provided in the opening.

Abstract: A gearing system includes a pair of gear support plates arranged to rotate about parallel but offset axes with the plates extending parallel to each other in parallel radially extending plates. Each plate includes axially extending teeth in the form of sections of lune shaped elements having concave and convex opposed surfaces. The teeth are interdigited axially such that various pairs of interdigited teeth will be in cooperating surface contact. Rotation of each support plate about its own axis causes the teeth to orbit relative to each other and engage in a driving relationship in a smooth manner, with the convex portion of certain teeth engaging smoothly with the concave portion of adjacent teeth. The gearing system provides a 1:1 speed ratio and has application as an Oldham coupling or synchronizer for a scroll fluid device.

Abstract: A power transmission joint comprises a pair of rotational members each having a rotation axis and arranged so as to be axially spaced from each other. A guide pin is disposed between the pair of rotational members and has an end portion thereof rotatably and swingably engaged with opposite end portions of the rotational members at rotation axes, respectively. A pair of drive pins are arranged symmetrically with respect to and in parallel to an axis of the guide pin and each is engaged with the opposite ends of the rotational members so as to transmit torque while allowing the drive pins to slide in a radial direction on the rotational members, swing and axially slide. A member is disposed between the pair of rotational members and rigidly ties the guide pin and the drive pins to keep a prescribed fixed relation therebetween.

Abstract: A disengageable coupling generally of the double slider type includes first and third components fixed to the end of shafts to be coupled. A second spider component is slidingly coupled to the first component by interlocking mating surfaces that permit limited radial sliding but prevent axial movement of the spider component. The spider component and third component have disengageable clutch surfaces which also permit radial movement of the spider component with respect to the third component.

Abstract: A drive train assembly (10) for an automotive fan (12) which includes a hydraulic coupler (22) that dynamically interconnects a fan blade shaft (24) to a driving shaft (18) within a range of radial offsets to permit reduction of clearance required between the fan blade (26) and a body mounted shroud (30). The hydraulic coupler (22) includes driving and driven turbines (48,50) that are drivingly interconnected by means of a fluid (64) operated upon by a plurality of vanes (56,58) located in cavities (52,54) formed in each of the turbines. An anti-friction bearing (28) journals the fan blade shaft (24) in the shroud (30). A universal joint (32) or elastomeric coupler, connects the driving shaft (18) to the fan blade shaft (24) dynamically in any one of a number of relative angular positions. A clutch (20) is included to limit speed of rotation of the fan blade (26) within operational limits.

Abstract: This invention discloses an electrical fuel pump for a small motorcycle engine including an intake socket for introducing the fuel into the pump, a gerotor pump for compressing the incoming fuel, a discharge socket for discharging the compressed fuel from the pump, a DC motor for driving the gerotor pump, a coupling for transmitting the rotation power of the motor to the gerotor pump, and a casing for receiving the intake socket, the discharge socket, the gerotor pump, the coupling and the DC motor therein. The gerotor pump has a pair of engaged rotors, including a toothed inner rotor and a toothed outer rotor disposed eccentrically relative to each other, with a plurality of outer and inner teeth being, respectively, formed on the outer periphery of the inner rotor and on the inner periphery of the outer rotor so that the outer rotor may be driven by the inner rotor through engagement of the inner and outer teeth.

Abstract: A power-transmission joint for manual transmissions in motor vehicles for insertion intermediate a drive shaft and a shift rod of said transmission, having a box-like cage forming a frame with a sliding block fixedly arranged in the cage. The sliding block has a central bore therethrough for receipt of a steering journal, and is held in a retaining member which engages the cage in a resilient manner to allow for longitudinal displacement and a predefined rotational movement of the sliding block.

Abstract: An interlocking shaft coupling including a disk-shaped body having two end faces and an interlocking element disposed on each of these faces. Each interlocking element has a substantially circular cross section and a longitudinal axis parallel to a diameter of the disk-shaped body. The coupling can be attached to opposing rotary shafts by hubs which fit over the shafts and have receiving elements which engage with the interlocking elements of the shaft coupling.

Abstract: A scroll fluid device is provided with a synchronizer arrangement that prevents relative rotation between the involute scroll wraps defining fluid working chambers while permitting the wraps to orbit relative to each other to perform work on fluid moved through the device or to expend work through the reaction of fluid moving through the device. The synchronizer comprises axially extending teeth affixed to one of the scroll support end plates interdigited with grooves affixed to the other end plate. The grooves of the synchronizer each have a width that accommodates the orbital excursion of each tooth extending into the groove such that, during orbital movement of one scroll wrap relative to the other, the teeth engage the side walls of the groove to prevent rotation of the scroll wraps relative to each other in either direction.

Abstract: A scroll fluid device is provided with a toothed ring synchronizer coupled to sprocket teeth provided of each scroll wrap back plate. The coupling between the teeth does not restrict relative axial motion between the scroll wraps and evenly distributes torque loads resulting from forces tending to rotate one wrap relative to the other between the back plates. The ring synchronizer may include internal or external teeth cooperating with adjoining sprocket teeth provided on the scroll back plates.

Abstract: A power transmission device including a power input member supported by a frame and the like, a rotating shaft to which power is finally transmitted, and a cylindrical power relay member arranged between the power input member and the rotating shaft with a certain clearance interposed between them, wherein said power relay member is engaged with the power input member at one end thereof while with the rotating shaft at the other end thereof.

Abstract: A flexible coupling of the light weight, low inertia spring plate type having a central disk which through flex provides for angular misalignment and four supporting side leaf springs which provide for parallel misalignment. Bolted on exterior drive lugs transmit the torque to the central disk. Bronze guides provide for attachment of the leaf springs to the center disk. The drive and driven plates are connected to hubs which are split so they can be clamped onto the input and output shafts which are subject to alternating torque loads.

Abstract: A flexible coupling in which two collars are connected with each other through two pairs of coupling rods which are offset from each other angularly by 90.degree., the two pairs lying in parallel planes. The coupling rods are connected through torsion layers to coupling arms which are articulated to each other. One of the coupling rods or coupling arms are connected to their respective collars while the other of the coupling rods or coupling arms are connected to an intermediate member located between the two collars.

Abstract: A connection construction of a turning angle detector which comprises a lever in the form of a large-diameter member secured to a shaft to be detected and extending in the radial direction of the shaft to be detected, a pin secured at right angles to the lever, a connection shaft projecting outward from a boss portion of the turning angle detector and having a large-diameter portion larger than the diameter of the boss portion, and a pinching portion for pinching the pin in the large-diameter portion of the connection shaft so that the pin is movable in the radial direction and axial direction within its pinched range, but its movement in the circumferential direction is restricted, wherein the rotation of the shaft to be detected is transmitted to the connection shaft of the turning angle detector, whereby an error arising at the time of assembly can be absorbed by the space between the pinching portion and the pin to make easy the process of assembly, and it is possible to configure mutually tightly the con

Abstract: An apparatus for varying the damping characteristics of a shock absorber of the kind comprising a piston rod and an adjusting shaft mounted coaxially within the piston rod for rotation relative to the piston rod. Upon a change in its angular position relative to the piston rod, the adjusting shaft effects a change in an effective oil passage area in the shock absorber, and thus varies its damping characteristics. The adjusting shaft (16) has a free end (15) located at the end of the piston rod. The apparatus comprises a housing (4, 18, 19, 50) arranged to be attached to the end of the piston rod. The housing accommodates, in succession: an electric motor (1) adapted to be driven and positioned in two directions; a speed reducer (2) coupled to an output shaft (26) thereof; and a universal joint (3) disposed between an output member (33) of the speed reducer (2) and the free end (15) of the shock absorber adjusting shaft (16).

Abstract: A shaft coupling working on the principle of an Oldham's coupling in which rotary members are connected by pairs of guide links (20,26). Additional guide links (28,38), displaced at an angle of 90.degree. to one another, are provided between the first rotary member (14) and the intermediate member (16) and between the intermediate member (16) and the second rotary member (18). The pivotal axes of the additional guide links extend in a crossed direction to the rotational axis of these members. These additional guide links provide resistance against axial forces in the coupling but do permit the coupling to operate with radial misalignment of the input and output shaft.

Abstract: A coupling member (7,10,11,12) is shown for fastening to a wheel support (2-6) of a car, which member has an oblong hole (8) located in the line symmetry of a V-shaped recess and a connecting rod (12) parallel to said line, so that by tightening only one bolt or mutter a perfect mounting and positioning of the member is possible with respect to the rotational axis (1) of the wheel support, with the connecting rod always being located exactly above said rotational axis.

Abstract: A coupler for coupling up a rotary shaft of an ignition distributor to an engine camshaft comprises an annular member having a circular axial recess into which the rotary shaft loosely projects over one axial end of the annular member, at least one projection provided on the other axial end of the disk-like member for slidably fitting into a diametrical groove formed on a top end of the engine camshaft, a diametrical straight bore formed in the annular member, an axis of which crosses a line passing through the projection and a center of the disk-like member at an angle .theta.(0.degree.<.theta.<90.degree.), and a connecting pin extending through the diametrical straight bore in the annular member and a diametrical bore formed in the rotary shaft of the distributor.

Abstract: This invention is an improved "Oldham coupling" for use in a scroll machine to prevent angular rotation of one of the scroll members relative to the other. The coupling is of simplified one-piece construction that can be stamped from sheet metal in a single operation. The preferred embodiment is an oval-shaped stamped ring having four tabs extending from its perimeter at 90.degree. intervals. Two of the tabs, at opposite sides of the ring, slidingly engage slots in one of the orbiting scroll members while the other two tabs slidingly engage slots disposed either in the stationary frame of the scroll machine or in the other scroll member.

Abstract: A scroll type fluid apparatus having a rotation preventing mechanism provided with a sliding member engageable with the outer surface of a bearing portion at an orbiting scroll and regulating the radial movement of the sliding member in reciprocating movement, and a sliding member holder engageable with the outer surface of the sliding member so as to regulate the movement of the sliding member in the direction perpendicular to the moving direction of the bearing portion. Spaces formed before and behind the sliding member in the sliding direction thereof are utilized as oil chambers respectively, whereby lubricating oil pumped-up from an oil pickup provided at a crankshaft is forcibly fed by the pump action caused by sliding motion of the sliding member onto the slidable contact surface of a thrust bearing supporting the orbiting scroll.

Abstract: There is disclosed a scroll-type machine specifically suited for use as a gaseous fluid compressor. The machine incorporates an improved rotation controlling mechanism which is extremely simple in construction, several embodiments of which are disclosed. This mechanism does not eliminate relative rotation between the scrolls but limits it to a relatively small predetermined amount. Several novel techniques for contouring the profiles of the scroll wrap flanks to give good flank sealing with the aforesaid rotation controlling mechanism are also disclosed, as are two embodiments of an improved scroll drive mechanism and an improved thrust bearing arrangement. A novel method of machining a scroll is also disclosed.

Abstract: The invention relates to a universal joint composed of a driving member and a driven member connected through mortise and tenon joints extending perpendicularly to each other, suitable for connecting the rotor and shaft of a progressive cavity transducer such as a pump or motor.

Abstract: A universal joint includes a transmission ring provided with two pairs of holes, a pair of rotating shafts whose integrally provided pins are slidably fitted into the corresponding holes and a lubricating ring fitted onto the transmission ring with a predetermined clearance therebetween to maintain a lubricant therein. Thus, the sliding engagement between the pins and the holes may be maintained lubricated at all times.

Abstract: A rotary valve assembly for use in regulating the flow of molten material includes a stator member having therethrough a flow opening and adapted to be fixed to a source of molten material with the flow opening communicating with such source. The stator member has therein a rotor-receiving opening interrupting the flow opening and defined by a conical bearing surface. A frusto-conical shaped rotor member extends into the rotor-receiving opening, and the rotor member has an outer surface complementary to the bearing surface of the stator member. The rotor member has extending laterally therethrough a flow opening which, upon rotation of the rotor member with respect to the stator member, may be moved into and out of alignment with the flow opening of the stator member. A power driven device is provided to rotate the rotor member with respect to the stator member, thereby to selectively regulate the relative degree of alignment of the flow openings.

Abstract: A centerless grinder comprising a machine frame including bearings for supporting a shaft and a portion having a bore defined therein, a regulating wheelhead driving including a main drive shaft including a first shaft portion adapted to be supported by the bearings, a second threaded shaft portion axially adjacent the first shaft portion, and a third shaft portion extending through the bore, the third portion axially adjacent the second threaded portion and tapered inwardly toward the second shaft portion, a clamping ring having a threaded inner diameter for threadedly engaging with the second threaded shaft portion, and a plurality of holes defined in the outer diameter thereof for engagement by a suitable tool for rotating the clamping ring, a drive coupling having a tapered bore defining a surface for mating engagement with the tapered third shaft portion, and a threaded outer diameter, and drive lugs on the end remote from the first shaft portion, and a locking ring having a threaded inner diameter for t

Abstract: In a coupling operating on the principle of the Oldham coupling, parallel drives are disposed orthogonally relative to one another and include pairs of guide rods. In order to reduce the axial measurements of such a coupling, the guide rods are disposed in recesses located in the intermediate member. This permits the guide rods to be located, according to one embodiment of the invention, in a single plane.

Abstract: A drive train for the distributor of a spark ignition internal combustion engine includes an engine camshaft having a hollow, a distributor shaft essentially parallel to the engine camshaft, and a coupling body disposed in the hollow of the engine camshaft. The coupling body is connected to the engine camshaft in such a manner that the coupling body will rotate along with the engine camshaft and can move relative to the engine camshaft in a radial direction. The coupling body is also connected to the distributor shaft in such a manner that the coupling body will rotate along with the distributor shaft and can move relative to the distributor shaft in a radial direction perpendicular to the direction of the radial movement of the coupling body relative to the engine camshaft. This connection of the distributor shaft to the engine camshaft causes them to rotate together and compensates for mis-alignment between the axes thereof.

Abstract: A hybrid straight and curved guide phase change coupling device in which end members rotatable on spaced parallel axes in opposed spaced relation are connected by an intermediate member having guide means constraining lateral motion of the intermediate member to a straight diametrical path with respect to one of the end members and to a curved path with respect to the other of the end members whereby a cyclic phase change or velocity ratio variation is provided during rotation of the two end members at identical overall cyclic speeds.

Abstract: A scroll-type of fluid displacement apparatus is disclosed. The apparatus includes a housing having a fluid inlet and a fluid outlet port. A fixed scroll member is fixedly disposed with respect to the housing and has an end surface from which a first wrap extends. An orbiting scroll member is movably disposed within the housing and has an end plate from which a second wrap extends. The first and second wraps interfit at an angular offset to make a plurality of line contacts which define at least one pair of sealed off fluid pockets. A drive mechanism is connected to the orbiting scroll member to transmit orbital motion thereto. A rotation preventing means prevents rotation of orbiting scroll member during orbital motion of the orbiting scroll member and is comprised of fixed ring and a sliding ring. The sliding ring is slidably connected to the fixed ring and also to the second end plate by keys and keyways.

Abstract: A cyclic phase-change coupling in which opposed ends of two members rotatable on parallel offset axes are connected by an intermediate member through guide means which restrict lateral motion of the intermediate member with respect to both other members to separate arcuate paths, the axial projections of which intersect within the lateral boundaries of the intermediate member. In a preferred form, the arrangement comprises a curved key and groove variation of a standard Oldham shaft coupling that provides a cyclic phase change between the offset shafts rather than the fixed phase rotation of the Oldham construction.