Abstract: An adjustable-length column for chairs or the like comprises an upright tube with a pneumatic or hydropneumatic length-adjusting element disposed therein. The latter's piston rod, in the vicinity of its free end, is flexibly snap-engaged with a bottom plate of the upright tube.

Abstract: A bicycle front fork having two upper fork tubes, two lower fork tubes, and two fitting members connecting the upper fork tubes and the lower fork tubes. The upper fork tubes are provided respectively in the midsection thereof with a projection. The fitting members are provided respectively in the inner wall thereof with a slide slot in which the projection of the upper fork tube is slidably engaged to provide the upper fork tube with a shock-absorbing effect. The fitting members are provided respectively in the outer wall thereof with a protruded block. The lower fork tubes are provided respectively with a stopping ring edge having a groove corresponding in location to the protruded block of the fitting members. The fitting members and the lower fork tubes are fastened by a C-shaped ring.

Abstract: In a hydraulically actuated friction clutch or brake for an automatic transmission, contact between a pressure plate and retaining ring, each drivably engaged with an axially spline, is located at radialy outer position on the retaining ring, either because the adjacent surface of the pressure plate is relieved to produce contact at that location or because the retaining ring has a lateral surface that is relieved locally or tapered away from the surface of the retaining ring. Bending through the thickness of the component in which the spline teeth engage the pressure plate and retaining ring is reduced because the reaction force is applied to that component closer to the neutral axis than if contact between the pressure plate and retaining ring were distributed over a greater radial dimension of the retaining ring.

Abstract: An annular flange which can be positioned on a shaft and securely welded in place. This disclosure also contemplates the method of making an annular shaft flange. This novel flange is materially stronger than the prior art and has lower production costs.

Abstract: A turbine nozzle assembly includes an outer casing having first and second spaced apart support flanges for supporting a nozzle segment including a plurality of nozzle vanes extending between inner and outer bands. The outer band includes first and second spaced apart retention hooks, with the first hook being configured to axially engage the first support flange. And, the second support flange is sized for axially receiving the second hook without tilting of the nozzle segment. An annular retainer radially engages the second support flange and axially abuts the second hook for axially retaining the second hook. And, a clip axially engages the second hook and support flange around the retainer for radially supporting the nozzle segment to the outer casing.

Abstract: A cylindrical spacing ring spaces apart bicycle chainrings. The cylindrical spacing ring preferably encompasses a plurality of threaded fasteners which secure the chainrings to a bicycle crankarm means.

Abstract: A device for mounting a cushion plunger to one end of the piston rod in a hydraulic cylinder, the cushion plunger constituting a part of a cushion mechanism installed to dampen the impact generated during the rotation of the piston in the hydraulic cylinder. The mounting device includes a recess provided at the end of the piston rod and adapted to partially receive the cushion plunger, a pin hole provided at the piston rod, the pin hole extending in a direction orthogonal to the recess such that it communicates with the recess, another pin hole perforated throughout the cushion plunger radially of the cushion plunger, the pin holes being aligned with each other at a state that the cushion plunger is received in position in the recess, a fling pin inserted into the pin holes being aligned with each other, the fling pin being adapted to fix the cushion plunger to the piston rod, and a clearance defined between the outer diameter of the fixing pin and the inner diameter of the pin hole of the cushion plunger.

Abstract: A connecting element for creating a blind side connection for materials such as furniture. Connecting element includes a tenon which includes a groove positioned about the peripheral surface of the tenon. A compression material which is flexible and has excellent memory is inserted into the group on the tenon. A mortise is provided which has an opening for telescopically receiving the tenon and compression material into the inner chamber of the mortise. The inner chamber includes a set slot positioned around the interior surface of the chamber and is designed to receive the peripheral edge of the compression material on the tenon. Liquid and/or re-wettable adhesives can be used to rigidly connect the tenon in the mortise.

Abstract: An adjustment assembly in a motion transmitting remote control wherein the overall length of the conduit is adjusted to accommodate the installed post. Male (18) and female (20) telescoping members are biased into one another to shorten the overall length of the conduit. A spring (22) is retained in position on the male member (18) by a collar (26) until fully 11 inserted into the female member (20) whereupon the locking member (19) which interlocks the telescoping members presents an abutment to engage the collar (26) as the telescoping members (18 and 20) are telescoped into one another.

Abstract: A connection for locking first (18) and second (20) core element sections together in a locked position mechanically prevented from moving relative to one another axially in either direction solely in response to axial forces transmitted along the core element sections (18,20) without buckling either of the core element sections (18,20). A male member (26) presents a male groove (30) and a female member (24) presents a female groove (32) and a lock ring (28) disposed in one of the grooves (30,32) with the lock ring (28) radially overlapping the male (30) and female (32) grooves in the locked position. A mechanical advantage comprising a female taper (34) of gentle slope forces the radial movement of the lock ring (28) as core element sections (18 and 20) are moved together without buckling the wire elements (22) of the core element sections (18, 20).

Abstract: A plug closes the end bore of a slip yoke. A plurality of teeth are cast into a counterbore formed at an end of the slip yoke. The rigid plug snaps behind the teeth to be retained within the counterbore. The teeth are circumferentially spaced and may be formed when the slip yoke is cast. The rigid plug has an edge that extends radially outwardly to engage an inner peripheral surface of the counterbore and retain the plug. The teeth prevent movement of the plug outwardly of the bore.

Abstract: A gear (5) can set up a high intermittent or continuous axial thrust in operation, whether shifting or driving operation. A single split circular spring clip (3) in a groove on the gearshift (2) can tend to yield by expansion under such a load. Accordingly a further split circular spring reinforcement ring (7) having a conical surface (10) facing the gear (5), is abutted by, preferably, a matching conical surface (13) which is moved with the gear (5). The abutting of the reinforcement ring (7) causes the ring to contract around the gearshaft (2), increasing friction and consequently, the resistance axial movements.

Abstract: A starter head for the starter of an internal combustion engine includes a motor shaft, on which a starter pinion is mounted for axial sliding movement. A free wheel and a driving sleeve are secured on the starter pinion by means of a securing shroud. The starter pinion has a bore over the whole of its length, with the motor shaft being displaceable within this bore. The starter has a device for limiting the axial throw of the starter head. The throw limiting device comprises a stop ring cooperating with a further ring fixed on the free end of the engine shaft within the bore of the pinion. The stop ring is fitted in a semicylindrical groove formed in the bore.

Abstract: The end-to-end anastomosis apparatus is provided with a mounting means which can receive a trocar for making holes in tissue and, subsequently, an anvil shaft for the mounting of an anvil assembly for stapling purposes. The anvil shaft is provided with splines which cooperate with splines on a shell liner within the housing of the apparatus to align the buckets on the anvil assembly with the staples in a cartridge secured in the apparatus. In addition, the anvil assembly is provided with a spring for locking of the anvil housing on the anvil shaft.

Abstract: A gas generator is provided with an outer tube and an inner tube arranged coaxially within the outer tube. The pressure gas-generating charge is accommodated in the inner tube, the charge being ignited by an ignition unit. The generator is closed at the ends in a gas tight manner by closure covers, which are surrounded laterally by the end sections of the outer tube. On the inside of the closure covers there is in each case a recess for accepting the ends of the inner tube. The recesses hold the inner tube centered in the outer tube. Each cover is further provided with a peripheral groove, in which interior projections, directed inwards, and formed by multiple notching by means of a notching tool, engage. These projections, for their part, are arranged on the inner peripheral surface of the outer tube in the end sections thereof.

Abstract: A shaft retaining device having a shaft selectively retained as to translation and rotational movement. A sleeve coaxial with the shaft encloses a length of the shaft. The shaft has an outwardly projecting cam within the sleeve. A cam follower carried by the sleeve has a part thereof within the sleeve in a plane normal to the shaft axis and is cammed away from the shaft by the cam. The cam and cam follower have complementary profiles, one of which is a male profile and the other is a female profile, in which the cam and cam follower engage other effectively selectively immobilizing the shaft and sleeve as to relative translation movement when the cam and cam follower engage each other.

Abstract: A wobble plate compressor includes a non-rotary socket plate mounted on a journal of a rotary drive plate. The drive plate includes a bushing and a needle-type thrust bearing to accommodate relative rotary movement between the plates. The socket plate and drive plate are retained together by an assembly including a square-edged annular channel formed in a recessed journal, a thrust washer for engaging the journal and the bushing and a dished retaining ring. The dished retaining ring also includes square edges mating with the adjacent sides of the channel. The retaining ring engages the thrust washer so as to provide a preload force to seat the washer on the journal and for biasing the socket plate against the thrust bearing. The retaining ring is characterized by a three degree dish angle when compressed between two flat parallel surfaces with an applied load of 30N.

Abstract: An apparatus and method are provided for preventing axial movement of a disc along the shaft on which it is shrunk. The apparatus features a set of arcuate retainers having one portion disposed in a circumferentially extending groove in the disc face and another portion disposed in a circumferentially extending groove in the shaft outer surface. The retainers are installed by inserting them one at a time into an entry slot in the disc adjacent the groove. The last retainer is a locking retainer and is attached to a closure piece by locking screws threaded into two holes drilled at the intersection between the closure piece and locking retainer so that one half of the circumference of the hole is formed in the closure piece and the other half of the circumference of the hole is formed in the locking retainer.

Abstract: The combination comprising a machine element, a tubular member and a ring fastener for mounting the machine element in the circular bore of the tubular member, the ring fastener being in the form of a split annular ring member having confronting end faces, the ring member being of a diameter slightly greater than the diameter of a bore in the tubular member, each end face having a first axial portion extending generally parallel to the axis of the ring member and a second inclined portion extending at a predetermined angle to the axis of the ring member. The first and second portions of the end faces normally align and confront in the relaxed condition of the ring member and are displaceable axially relative to one another for insertion in the bore of the tubular member and after seating in the bore displaceable in an opposite axial direction by application of an axial force adjacent the axial end faces.

Abstract: An improved cap mounting structure of the governor valve for automatic transmission is shown. The cap is mantled on a governor case for housing the governor valve by a snap ring which engages the outer periphery of the governor case through openings formed on the cap at inner protruding portions and the both end of the snap ring.

Abstract: A die (10, 40) for extrusion of optical grade fibers includes an insert (12, 42) placed under compression within a sleeve (14, 44). Tapered surfaces (18, 20 & 48, 50) between the insert and the sleeve enable axial assembly of the components when the insert is forced within the sleeve. Lubrication and interlocking between the components comprise either general lubricant and an interlocking ring (30) residing within grooves (26, 28) in the tapered surfaces, or a metal (60) which provides first a lubrication during assembly of the components and then a metallurgical diffusion bond therebetween.

Abstract: A connection between a first member (e.g. a piston rod) and a bore in a second member (e.g. a piston) which is formed by two spaced grooves on the first member at least one of which is in register with one of two spaced steps in the bore, and a compression clip mounted in each groove such that when the groove and the step are in register the compression clip is in compression between one face of each groove and one face of the corresponding step and the angle between the compression forces acting on the clip and the longitudinal axis of the bore is in the range 30.degree.-70.degree..

Abstract: In order to guarantee the sealing quality of a joining between a pipe socket and a tube by means of a clamp pressing a tube on a pipe wall, where the press-on power to be exercised by the tube clamp will act as uniformly as possible all over the total pipe circumference and cause no damage to the tube, it is suggested that the clamp is an open tube clamp being operative by its inner clamping power over a relatively wide-ranged press-on surface, being moved into its acting position by a tool overcoming the clamping power, and where an almost uniform pressing is provided extending over the total press-on surface (F) by a cross section increasing from the open ends (E1, E2) in direction to the clamping dead center (R).

Abstract: Bracket members secured respectively to the end of the wing at a forward or aft location, and to the aircraft fuselage form with a clevis pin a clevis connection with the clevis pin projecting through the bracket members. The pin bears integrally a first cam fitted within a circular opening of one bracket member. A pair of cam bushings rotatably mounted on the clevis pin to the side of the first cam are positioned within circular openings of dual ribs of the other bracket member forming the clevis connection. The cam bushings and the clevis pin are independently rotated to vary the angle of attack of the wing mounted to the fuselage and are locked at adjusted positions.

Abstract: An internal locking device for telescoping tubular members and method of forming the same. The device includes an inner telescoping member, having an end formed with an annular cam groove of a selected configuration, and a cam element cooperating with said cam groove and outwardly extendable to form a releaseable lock of an outer telescoping tubular member with the inner member when the members are twisted one with the other.

Abstract: A coupling device adapted for use with floor maintenance machines of the type such as floor brushing, buffing, polishing, scrubbing or the like which enables automatic coupling of the maintenance element (i.e. brush, buffing disc or the like) without direct manual implementation thereof. The device includes an annular plate member having a circular opening adapted to receive a circular mounting flange carried by the machine drive shaft with the drive shaft having radially projecting lugs which are adapted to pass through radially extending arcuate recesses formed in the plate member so as to lockably engage behind the plate member. On one side of the plate member a first series of inner peripheral cam-like ramps communicate with one end the arcuate recesses and on the opposite side of the plate member a second series of inner peripheral cam-like ramps communicate with the opposite ends of the arcuate recesses.

Abstract: A vacuum assisted booster having an input rod with a thrust member thereon, an output rod with a piston head thereon, and an elastomeric disc located between the thrust member and the piston head. The piston head has an axial bore therein and the thrust member has an axial projection that extends through the elastomeric disc into the bore. The projection is anchored to the piston head by a cap fitted to the head and which allows some forward movement of the thrust member to apply a load to the elastomeric disc but limits axial separation of the piston head and thrust member on the return stroke.

Abstract: A chuck assembly and collet for retaining an end mill tool against axial pullout. The collet includes a radially compressible body having a tapered outer surface, a central bore and a radial aperture extending from the outer surface into the central bore. The radial aperture, which includes larger and smaller diameter portions, has a movable pin mounted therein and adapted to extend into the bore to retain the tool. The pin has an undercut portion, with a spring or snap ring mounted around the pin in the undercut portion, said spring having a free diameter slightly larger than the larger diameter to provide a pressure fit when mounted therein.

Abstract: A multi-stage sprocket assembly comprises a cylindrical member and a sprocket group and has therebetween a retaining device for preventing the sprocket group from axial movement with respect to the cylindrical member, the retaining device comprising an engaging groove extending circumferentially of the cylindrical member and an engaging member elastically engageable with the engaging groove and disengageable therefrom against the elastic engagement force. The engaging member engages with the engaging groove to mount the sprocket group to the cylindrical member in relation of being axially immovable and disengages from the groove to remove the sprocket group from the cylindrical member.

Abstract: A hose clamp having a thickness that is maximum at its longitudinal center and is decreased symmetrically on each side of center progressively in proportion to the distance from the center until reaching end portions of uniform thickness. The band is bent into an annular shape with the ends overlapping. The ends are provided with holding portions projecting radially outward.

Abstract: A retainer clip for tool bits comprises an annular strip having circumferentially spaced ends defining a gap therebetween. A pair of proximate projections and at least one remote projection project outwardly from the strip. The proximate projections are located on opposite sides of the gap. The proximate projections include positively oriented front surfaces, and the remote projection includes a non-positively oriented front surface disposed longitudinally rearwardly relative to forwardmost portions of the front surfaces of the proximate projections. Upon forward displacement of the clip within the hole of a holder, contact occurs between the proximate projections and a wall of a retaining groove of the holder to produce radial shifting of the gap of the clip toward the axis of the bit. Removal of the bit from the hole is possible only by shearing the remote projection.

Abstract: An inherent eccentricity between the rotor bearings and the stator shroud is reduced by intentionally fabricating into each of a pair of frame annuluses, outer and inner surfaces which are relatively eccentric, and then rotating the annuluses with respect to each other until the inherent eccentricity is substantially offset. A method is provided to determine the optimum relative rotational positions as a function of the measured inherent eccentricity, and restrictions in the number of possible rotational positions are considered.

Abstract: A C-shaped retaining ring having an open portion and at least two pairs of cutouts formed in the inner peripheral edge or outer peripheral edge of the ring and arranged symmetrically on the opposite sides of the open portion, the ring being uniform in its width and thickness circumferentially thereof. The cutouts are arranged at apexes of an equilateral polygon formed when the ring is loaded as installed on a shaft or in a bore. In addition, the cutouts are separately spaced apart along the peripheral edge of the ring and have a progressively increasing depth toward the open portion. The remaining width of the portion of the ring defining each of the cutouts satisfies the equation: ##EQU1## where b.sub.n is the remaining width, b is the width of the ring, .alpha. is the angle between the center line and the end face of the open portion, and .PSI. is the angle between the center line and the cutout.

Abstract: A cultivator or rotary harrow has tined soil working members that are driven about upwardly extending axes. At least one, but preferably substantially all, of the soil working members have an overload release between the driving system and the tines so that when an immovable object is encountered by a tine, the drive to the respective soil working member is temporarily disconnected. The release can be between two parts that are normally spring biased together to maintain the driving engagement to the soil working member. In one form, a pinion gear to the soil working member has an outer toothed portion that can rotate relative to a central portion that is connected to the rotary shaft mounting the soil working member. Ball members in channels formed in the central portion are biased radially into recesses of the toothed portion. In another form, ball members are biased radially to engage the soil working member to its corresponding rotary shaft.

Abstract: A gripping collar for electric cables and the like comprises coaxial pieces held axially together but rotatable relative to one another, the pieces having eccentric holes which define a passage through the collar. A cable or other member to be gripped can be inserted in the passage when the holes are aligned, and then gripped by relatively rotating the pieces.

Abstract: Extruded bars or columns of a set of structural members are each formed with a central passage and with at least one longitudinal groove having a restricted orifice. A connector member has a body portion secured in the passage of one member and two catches mounted on the body portion and projecting into the groove of another member. One catch has a leading, enlarged head portion and a reduced neck portion trailing the head portion. An operating device on the body portion includes a single, manually operable drive shaft and two motion transmitting eccentrics respectively connecting the shaft to the two catches for moving the catches inward and outward of the groove orifice in timed sequence so that the neck portion of the one catch together with the other catch laterally secures the catches in the orifice while the enlarged head prevents accidental withdrawal of the catches from their locking position.

Abstract: An elongated channel-shaped body is provided including a pair of opposite side longitudinal flanges and an elongated bight portion extending between and interconnecting one pair of corresponding longitudinal edge portions of the flanges. One of the flanges is rigid with and thus fixed relative to the bight portion and the other flange is pivotaly supported therefrom for oscillation about an axis extending longitudinally of the body along the adjacent marginal edges of the pivoted flange and the bight portion. The pivoted flange is oscillatable between a closed position with the adjacent sides of the flanges substantially parallel and an open position with the free longitudinal edge of the pivoted flange swung away from the free edge of the rigid flange.

Abstract: A control coupling in which an enclosure houses first and second sets of mutually interleaved elements in a viscous liquid. The first and second sets of elements are arranged for rotation about a common axis and for driving connection with first and second rotatable members respectively. A clutch is provided outside the enclosure and resilient means are arranged to urge the clutch into a disengaged state. A pressure responsive means which is in communication with the enclosure is arranged to engage the clutch against the action of the resilient means when the pressure in the liquid in the enclosure attains a predetermined level.