Abstract: A scroll type compressor includes a stationary scroll element, a movable scroll element orbiting about a given axis and cooperating with the stationary scroll element for compressing a fluid in a compression chamber defined between the two scroll elements, and a rotation preventing unit for preventing rotation of the movable scroll element about its own axis. The rotation preventing unit has at least a plurality of pairs of scroll side pins mounted on the movable scroll element and housing side pins mounted on a housing of the compressor. When the compression chamber has a reduced volume of 10 through 22% of an initial volume thereof immediately after completion of sucking of the fluid, at least two of the plurality of scroll side pins are arranged to be symmetrical with one another with respect to a line L.sub.2 which passes through a rotating center O.sub.R of the movable scroll element and is perpendicular to a different line L.sub.1 which passes through the rotating center O.sub.

Abstract: A scroll type compressor comprises a housing and a fixed scroll. A movable scroll is incorporated therebetween, eccentrically engaging with the fixed scroll, and has a rotating center and a revolving center. Pin members are arranged on the end plate of the movable scroll and on the housing. At least one of the pin members of the movable scroll is positioned on a first line and disposed downstream of the corresponding pin member of the housing in the rotating direction, when the volume ratio of a compression chamber is from 10 to 22 percent of the volume of the compression chamber at the time of the conclusion of the suction of medium. The first line passes through the rotating center and is perpendicular to a second line, which passes through the rotating and revolving centers. The compressor also has annular ring members, which contact at least a pair of the pin members of the movable scroll and the housing, to prevent the movable scroll from rotating.

Abstract: A flexible shaft coupling has first and second hubs provided with outwardly extending flanges formed at ends of cylindrical parts of the hubs. Each may be connected to a transmission shaft. The flange of the first hub has a plurality of spring holes therein located within the periphery thereof. A holder is fitted over the cylindrical part of the first hub and fixed to the flange of the second hub so as to hold the flange of the first hub between the holder and the flange of the second hub. Barrel-shaped coil springs pass through the spring holes in the flange of the first hub. Each barrel-shaped coil spring is compressed between the second hub and the holder so that the coil springs deflect to bring adjoining coils thereof into contact with each other when torque is transmitted.

Abstract: A coupling for connecting two rotatable members in a manner to isolate the torsional vibrations in one member from the other member even where radial, angular and axial misalignment is present and is constantly varying between the two rotatable members. Torsional stiffness and damping can be readily and independently altered to accommodate any application.

Abstract: An improved tire lift mechanism is disclosed in which a drive tube selectively rotates a driven shaft to raise and lower a cable fixed to a spare tire. The drive tube is connected to the driven shaft through a connection formed of a plurality of circumferentially-spaced pins which are received within notches in the driven shaft. Spaces are provided between the drive pins. Liquids in the area of the connection drain outwardly of the spaces and do not freeze in the area, which could prevent use of the tire lift mechanism. A spring is disposed between the driven shaft and the drive tube to eliminate looseness, and resultant rattling. Finally, a method of assembling the tire lift mechanism is disclosed in which the drive tube is formed of a pair of telescopic tube members. The members are telescopically moved relative to each other to a collapsed position, and the mechanism is fixed to the underside of a vehicle.

Abstract: A mechanism for transmitting torque from one shaft to another shaft includes a formation attached to one shaft, the formation defining a plurality of cylindrical surfaces each having radius R, the axes of the cylindrical surfaces being parallel and disposed at angularly spaced locations about a circle of radius M, each cylindrical surface is engaged by a cylindrical bearing formation attached to the other shaft, each bearing formation having a radius r and being disposed in similar angular relationship to the cylindrical surfaces about a circle of axis inclined at angle to the axes of the cylindrical surfaces, the radius of the circle upon which the bearing formations are disposed being equal to M/(1+cos) and the radius R of the cylindrical surfaces being equal to r+M(1-cos)/(1+cos).

Abstract: A flexible coupling for effecting a precisely aligned and repeatable blind mounting of the driver and driven halves thereof at a single time and in a single stage. The drive half can toggle and includes a plurality of multi-length teeth, and the driven half includes a rotatable disc member having a plurality of overlapping sloped slots for fully receiving and engaging the multi-length teeth of the driver half at the time and stage when the driven half is axially moved into the driver half by only a small axial force.

Abstract: A scroll machine includes a first scroll 13 driven by a driving source, a second scroll 17 disposed eccentrically with respect to the first scroll and associated therewith to compress fluid, a plurality of first pins 22 arranged on the first scroll along a first circle coaxial with the scroll and protruding axially of the first scroll, a plurality of second pins 25 arranged on the second scroll along a second circle having the same radius as that of the first circle and protruding axially thereof and a connecting portion ring 26 for coupling the first pins to the second pins such that center positions of the first and the second scrolls are always separated from each other by an eccentricity of the second scroll with respect to the first scroll.

Abstract: The spare wheel lift and drive assembly is for a vehicle having a frame, a downwardly facing spare rear wheel mount bracket upon the underside of the frame, a lift mechanism depending from the bracket including a cable extending therefrom and rotative drive arranged upon a first axis connected to the cable for selectively extending and retracting a cable, and a spare wheel support connected to the cable. A compound angle drive is provided for operating the lift mechanism.

Abstract: A flexible all-steel shaft coupling has two coupling halves each comprising a connecting flange and which are axially and angularly movable but antitorsionally connected to each other through a yieldable stapled lamella crown connected to the connecting flanges. Each connection of the stapled lamella crown with one of flanges consists of a bolt on which rests, in clamped position between spacer rings, the stapled lamella crown on a spring collet provided with a conical press seat. Due to its conical support on the bolt, the conical spring collet is radially expanded and transmits radial pretension into bores of the stapled lamella crown. Due to the tolerance-free support of the stapled lamella crown on the bolt, and due to radial pretension in the bores of the stapled lamella crown, the shaft coupling may be easily mounted without precision machning and without tolerance on the support seats, while expansions and ovalizations of the bores, which lead to ruptures due to notch corrosion are prevented.

Abstract: The invention provides a coupling device with a first, driven member and a second member to be driven by the first member to a rotational movement. A driving plate is arranged between the two members and fixedly connected to the second member. In order to provide an angularly and centrically well defined position of the two members relative to each other, said first driven member is equipped with a centrically as well as an eccentrically arranged driving pin, the outer surfaces thereof having at least partially a conical shape. The conical parts of the surfaces engage with openings correspondingly arranged in the driving plate, which is elastically deformed upon connection of the second member to the first member.

Abstract: A constant velocity coupling characterized by a hub made of a rigid material, a plurality of torque transmitting elements made of a rigid material, and elastomeric sections connecting the hub and the torque transmitting elements. The coupling consists of a female half and a male half and offers the advantage that the two halves may be molded in a single cavity mold, with the mating portions characteristic of the male half being added after the molding has been accomplished.

Abstract: An automatically engageable and disengageable drive coupler mechanism is provided in which separate drive and driven couplers are automatically coupled to and uncoupled from each other simply by moving the couplers into and out of contact with each other in a radial direction or an axial direction or a combination thereof. The driven coupler includes a lug arrangement rotatably mounted on a mounting member at the end of a driven shaft and having a pair of driven lugs on opposite sides of the driven shaft which are rotatable about an axis intersecting and normal to the axis of elongation of the driven shaft. A leaf spring coupled to the mounting member resiliently biases the lug arrangement into a neutral position in which the lugs extend outwardly in the direction of the axis of elongation of the driven shaft while at the same time permitting rotation of the driven lugs out of the neutral position in either of opposite directions against the resistance of the spring.

Abstract: A kinematic universal coupling assembly for converting rotation about a first rotational axis to rotation about a second rotational axis comprises a driving member rotatable about the first rotational axis and having first, second and third torque transmitting portions relative to the first rotational axis, a driven member rotatable about the second rotational axis and having first, second and third torque transmitted portions relative to the second rotational axis, lines connecting the first, second and third torque transmitted portions to the first, second and third torque transmitting portions intersecting one another at a point, and a torque transmitting device for transmitting a torque from a rotative driving member to a rotative driven member. The torque transmitting device includes first, second and third members for transmitting a torque from the first, second and third torque transmitting portions to the first, second and third torque transmitting portions.

Abstract: The drive coupling assembly, which is adapted to drivingly connect together a drive member mounted for rotation about a first axis and a driven member mounted for rotation about a second axis generally coaxially with the first rotational axis, has identically arranged torque transmitting members mounted on the drive and driven members and connected together by a pair of resilient members extending transversely of the rotational axes. Each transmitting member includes a base portion for mounting on the associated drive member and driven member, first and second opposed wall sections extending axially from the base portion in spaced, parallel relationship on the opposite sides of the rotational axes. A first axially extending projection on the first wall section of one torque transmitting members extends in spaced, parallel relationship to a corresponding first axially extending projection on the first wall section of the other torque transmitting member.

Abstract: This invention relates to couplings such as universal joints and the like for coupling the ends of two shafts together and, in particular, in situations where the two shafts may be in either lateral, longitudinal or angular misalignment. The coupling comprises flexible finger means which connect in sliding relationship to finger receiving means on hubs adapted to be connected to the shafts.

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: The invention refers to a device for torque transmitting interconnection of two shafts (1, 2) or the like. The shafts are at their opposite ends provided with flanges formed as clamping sleeves incorporating inner and outer sleeves (7 and 6 respectively), the inner sleeve of which is clamped against the shaft at a relative axial displacement of the sleeves. Power transmission takes place via a number of axial pegs (5) which extend between recesses in each flange. A part of each recess is situated in each of the inner and outer sleeves whereby a relative rotation of the sleeves is prevented by the pegs, and the resistance of the inner sleeve against clamping is reduced.

Abstract: The coupling comprises a plate rigid with each shaft and a floating intermediate device connected to each of the two plates. The floating device comprises at least three levers which are assembled by a center articulation. Each of the levers is connected by a radially slidable ball joint at one end to one of the plates, and at the other end to the other plate. At least one of the ball joints of each lever is axially fixed.

Abstract: For use in service and maintenance of oil and gas (or water) wells, a truck mounted line and cable winch. A winch has dual drums each of which is independently driven by a direct coupled radial piston hydraulic motor. An improved flexible coupling connects aligned motor and drum shafts.

Abstract: A piloted flexible torque transmission coupling including circumferentially spaced, axially aligned holes in the center member, pilot ring and hub of the coupling for ease of assembly and disassembly of the coupling. The same bolts are used to both assemble the coupling for normal operation and disassemble the coupling.

Abstract: The invention provides a coupling device with a first, driven member and a second member to be driven by the first member to a rotational movement. A driving plate is arranged between the two members and fixedly connected to the second member. In order to provide an angularly and centrically well defined position of the two members relative to each other, said first driven member is equipped with a centrically as well as an eccentrically arranged driving pin, the outer surfaces thereof having at least partially a conical shape. The conical parts of the surfaces engage with openings correspondingly arranged in the driving plate, which is elastically deformed upon connection of the second member to the first member.