Abstract: A universal, direct drive fan coupling designed to attach a radiator cooling fan to a water pump of an internal combustion engine for an automobile or like vehicle wherein the subject coupling is specifically designed to efficiently replace the fan idling clutch present in many relatively current models of American made automobiles, or like vehicles. The inherent versatility of the subject direct drive coupling enables the elimination of any clutch mechanism normally found in the aforementioned automobile type which is positioned between the rotating shaft associated with the conventional cooling fan and a subsequently positioned and driven component of the circulation system such as the water pump.

Abstract: The pinion gear of a gear pump is press fit onto the end portion of the drive shaft of the pump and is positively captivated on the shaft by a key and by a hot upsetting process, the latter resulting in the formation of axially protruding burrs on the end face of the shaft. When the drive shaft is rammed forwardly with significant force, the burrs tend to embed in an end plate disposed in opposing relation with the shaft. To prevent the burrs from embedding in the end plate and locking the shaft against rotation, the end plate is formed with a recess which receives the burrs with substantial axial clearance when the shaft is rammed forwardly against the end plate.

Abstract: Clevis connection includes a clevis bushing having a bushing sleeve, with a shoulder at one end having a tapered inner diameter, and a longitudinally extending slot through the shoulder and a portion of the length of the bushing sleeve. The bushing is inserted through aligned holes in the clevis arms and connecting lug. Then a tapered expander collet is inserted into the tapered inner diameter of the bushing shoulder and a bolt is inserted through the collet and bushing so that the bolt head loads through the collect which expands the bushing to cause pre-stress on the surrounding lug and a pre-load clamping of the connecting lug to one of the clevis arms, and cause pre-stress on the other clevis arm.

Abstract: Anti-rotation lock asembly includes a male threaded member that may be releasably locked in any desired axially adjusted position relative to a mating female threaded member by means of one or more wedge keys that are forced axially into notches in an end face of the female threaded member and radially against flats or keyways on the male threaded member. Surrounding the male member is a key retaining ring which retains the wedge keys on the male member when the wedge keys are disengaged from the female member to permit relative rotation between the male and female members for adjustment of the male member in or out relative to the female member. The wedge keys are retained in radial slots in the retaining ring which prevent relative axial movement between the wedge keys and retaining ring while permitting limited radial movement therebetween.

Abstract: The invention concerns a key joint for electric motors. More particularly, in order to obtain simplified assembly of a squirrel-cage rotor having inclined grooves to a shaft, a key joint is provided wherein the key comprises two integrated parts (1) and (2). The first part (1) has the same width and depth as the keyway in the shaft, while the second part (2) is inclined relative to the first part (1) and arranged radially outside of the latter.

Abstract: We are dealing with a mechanism for clamping a second machine part 4 which is supported movably with respect to a first machine part 2. A clamping bar 28, which extends in the direction of movement is arranged on the second machine part 4, on which clamping bar can be clamped a clamping member 32 which is supported freely movably in directions transverse to the direction of movement of the first machine part, but otherwise clearance free. Since the clamping member 22 is as a whole freely movable in directions transverse to the direction of movement, no reactive forces whatsoever are created in the direction of movement during the clamping operation.The inventive clamping mechanism is preferably used in feed-movable spindle sleeves (tail spindles) in order to assure a secure clamping in an axial direction and in a peripheral direction, without producing forces which act transversely to the spindle axis.

Abstract: A molded, one-piece adaptor for concentrically connecting a steering wheel and a steering wheel shaft is disclosed. In particular, the adaptor is useful when the steering wheel shaft has a tubular form, but the adaptor may be readily modified in order to connect to a steering wheel shaft having a rod-like form. The adaptor comprises an upper portion and a lower portion. The upper portion has a mechanism for meshing with the steering wheel. The lower portion engages with the steering wheel shaft. If the steering wheel shaft is tubular, the steering wheel shaft slips over the lower portion which has a plurality of tapered ribs which are spaced around and extend axially along the lower portion. These tapered ribs tend to take up any variation in tolerances so as to reduce the rocking between the steering wheel and steering wheel shaft.

Abstract: A portable abrading or polishing tool including a motor which drives orbitally a head carrying a working pad to which sandpaper or the like may be attached, with the motor of the device driving a carrier about a first axis, and with the carrier mounting the head to turn relative thereto about a second axis. The head and carrier are connected together by bearings, preferably including a large bearing near the head and a smaller bearing offset toward the motor. A counterweight structure is connected to the carrier and located near the axially outer end of the bearings for close coupling with the head and reduction of vibration in use. Fasteners attaching the counterweight to the carrier may serve a secondary purpose of forceably pulling the head and bearings from the carrier during disassembly. An elastomeric handle extending over the motor prevents transmission of low temperatures to a user's hand, and cushions engagement with the motor.

Abstract: A fuel transfer system for transferring fuel assemblies through a transfer tube between fuel exchange locations respectively in a fuel storage and handling building and a containment structure of a nuclear reactor includes a segmented track comprising first, second and third track segments and a segmented drive screw comprising first, second and third drive screw segments respectively associated with the fuel storage and handling building, the transfer tube, and the containment structure. Gaps between the successive, corresponding track segments and drive screw segments permit operation of valves for closing the ends of the transfer tube during normal operation of the reactor, which valves are then opened during fuel exchange operations. The adjacent but normally displaced ends of the first and second and of the second and third drive screw segments include respective, mating engagement means.

Abstract: A ball stop is locked to a cable by inserting the cable through an opening in the ball. The ball is then rigidly clamped in place by a wedge which is inserted into the aperture surrounding the cable and threads in the aperture and on the external part of the wedge mate and are screwed together to cam the wedge into frictional engagement with the cable.

Abstract: An improved key and key joint are disclosed. The key has a generally solid central portion and a pair of end portions. Each end portion is coterminus with the central portion and has a pair of spaced-apart longitudinal prongs. The inside surface of each prong is substantially parallel to the inside surface of the other prong and both inside surfaces are substantially planar. The key is assembled in the key joint with the slots defined by the longitudinal prongs extending from top to bottom through the key in a radial direction. A key joint thus assembled reduces the stress concentration factor attributable to a key joint assembled with a standard key to provide for a gradual transition between the strain of a shaft and the strain of a hub in torsion.

Abstract: An improved key stop for use in connection with a marine propeller and drive shaft assembly. The key includes a pin positioned for insertion into a radial bore in the keyway, thus precluding axial movement fore and aft of the key in the keyway, while retaining ease of installation of the propeller hub on the drive shaft.

Abstract: An improved power take-off lever arrangement for a tractor is disclosed which prevents the inadvertent shifting of the PTO lever from a first to a second position. The lever arrangement includes a support plate secured to the tractor and has a pin extending outward therefrom which engages an oval aperture formed in a manually operated lever. The lever is connected to a control valve for hydraulically engaging a power take-off drive. The control valve is responsive to move to a second position with corresponding movement of the lever and is spring biased to move to a first position with corresponding movement of the lever when the hydraulic pressure falls below a predetermined value. The lever is also spring biased to the first position such that an attachment mechanism formed on both the lever and the pin engages.

Abstract: A power take-off lever arrangement for a tractor is disclosed which prevents the inadvertent shifting of the PTO lever to an engaged position. The lever arrangement includes a support plate secured to the tractor which has a pin extending outward from it which engages in a slot formed in the manually shiftable lever. Secured to the pin is an arcuate sector which has a recess formed in its arcuate surface. A roller, which is attached to the underside of the lever, will engage the recess when the lever is in a disengaged position and will ride on the arcuate surface when the lever is in an engaged position. The lever arrangement further includes a spring which is attached between the lever and the support plate to urge the roller into the recess when the lever is in the disengaged position.

Abstract: An improved mounting bracket for a steering column mounted control stalk is disclosed. The bracket includes a generally flat base portion having an aperture formed therein for receiving a boss formed on the steering column. A hollow intermediate portion extends from the base portion and has an internal diameter at least equal to the internal diameter of the base portion aperture. A slot is formed in the base and intermediate portions for receiving a key formed on the steering column boss. A hollow end portion extends from an end of the intermediate portion opposite the base portion and has an internal diameter smaller than the internal diameter of the intermediate portion. The end portion further includes means for releasably engaging the steering column mounted control stalk. Means are provided for securing the base portion to the steering column.

Abstract: An ice breaking head for an ice producing machine is adjustable for producing harvested ice of selected sizes. The ice making machine has a cylinder, the inner surface of which produces commercial sheet ice. The ice is harvested by forcing the ice from out of the cylinder toward an ice breaking head. The position of ice breaking head is adjustable to vary the size of the ice harvested. The head has an ice breaking surface which contains fins for facilitating the breaking of the ice sheet. It is journalled on a mounting post which has keys or ribs of increasing heights which match corresponding keyway slots in the bore of the head so that the spacing of the head, and hence the size of the ice harvested, can be adjusted by changing the rotational position of the head on its mounting post.

Abstract: A roller reamer/stabilizer apparatus for use on a drill string assembly. The apparatus includes a reamer body which has a number of pockets formed in the body. A cutter assembly is anchored in each pocket. The cutter assembly includes a bearing pin on which two bearing blocks are mounted with a reamer cutter mounted in between the two bearing blocks. The entire cutter assembly is first assembled and is then placed in a corresponding pocket of the reamer body. The cutter assembly is secured within the pocket by means of pull pins which are inserted transversely through the reamer body so as to engage corresponding holes which are formed in the bearing blocks of the cutter assembly. The pull pins are secured by means of snap rings that can be easily removed so that the pull pins can then be retracted to permit the cutter assembly to be replaced after it is worn.

Abstract: A two-piece cutting edge construction wherein a plurality of adapters are mounted on the mold board each having releasably locked thereto a cutting edge; the sidewalls of the adapters and cutting edges being recessed for the receipt of longitudinally (forwardly/rearwardly) stabilizing pins; the lock for releasably coupling the cutting edge to the adapter including two legs resiliently inner connected by a compression spring with the lock being insertable and removable by forces extending transversely of the forward/rearward mounting and unmounting direction of the cutting edge.

Abstract: A scraping tool for cleaning well casing bores comprising an elongated support body, at least a pair of opposed sets of scraper blades mounted in slots in the body, an intermediate undercut between the sets of scraper blades, and locking mechanisms disposed in the undercut for retaining the scraper blades in the slots. A unique method for forming and assembling the scraping tool is also disclosed. Such method includes the steps of machining the scraper blades while retaining same on the support body, and turning the support body to develop a compound curve on each blade element.

Abstract: A polygonal connection for joining a hub with a shaft includes a bore in the hub and a joining portion on the shaft. In one embodiment both the bore and joining portion have mating, non-circular polygonal cross sections. In that embodiment, radially expandable fasteners are located in the vicinities of corners of the polygonal cross section of the joining portion of the shaft. In another embodiment, the bore in the hub and the joining portion of the shaft have circular cross sections, and at least one radially expandable fastener is located on the circumference of the joining portion of the shaft. In both embodiments, each fastener runs parallel to the axis of the shaft, and the longitudinal axis of each fastener is disposed within the perimeter or circumference of the joining portion of the shaft.

Abstract: An adapter or machine tool holder for cutters and the like and having a centrally disposed flanged piece with a support means extending axially therefrom in one direction and a hub member axially projecting from the flanged piece in the other direction, abutment member or members extending from the surface of the flanged piece adjacent the hub for engaging a load element such as a cutter and the like for retaining the load element in engagement and preventing the load element from rotating on the holder independently thereof.

Abstract: An apparatus for holding an elongted shaft, e.g., a mill roll within a sleeve, e.g., mill chuck sleeve comprises first and second collar portions capable of being removably joined together and affixed to the shaft; a spacer adapted to be placed between the joined collar portions and the sleeve in abutting relation to the end of the sleeve; and a plurality of both first and second bolts adapted to pass through holes in the first and second collar portions, respectively, to contact the spacer, thereby maintaining the abutting relation between the spacer and at least a portion of the sleeve.

Abstract: A floating-caliper disc brake (1) includes a non-rotating torque member (36) which carries the caliper (22) in fixed radial position relative to the disc (12) via a pair of pins (56, 58). The torque member and caliper each have matching grooves (44, 46, 48, 50) which, when placed in registry, define a pair of apertures (52, 54) between the caliper and the arms (38, 40) of the torque member. The pins are complementary in cross-section to the shape of these apertures so as to space apart the caliper and the torque member when the pins are inserted into the apertures. Brake torque is transferred from the caliper to the torque member solely through the pins. Sliding of the caliper along the pins provides for axial movement of the caliper relative to the torque member and brake rotor, but the caliper is otherwise restrained from movement in the radial and circumferential directions. One of the pins (58) includes a pair of opposed wedge-defining members (66, 68).

Abstract: A high speed turbo disc mounting assembly for the reduction of turbo disc failure and the provision for disc migration radially at high speeds comprising a shaft, a bushing mounted on said shaft having an annular flange through which torque pin apertures are provided, and a turbo disc mounted on said bushing such that torque pins aligned in channels at the interface of the disc and bushing provide for rotational engagement of the disc to the bushing without restricting outward migration of the disc or imparting undue stress concentrations to the high dynamic stress level area of said disc.

Abstract: A coupling between a prime mover and a dynamoelectric machine should include electrical insulation between the connected shafts so as to preclude the transmission of eddy currents between the dynamoelectric machine to the prime mover shaft. This insulation may be provided at the radial interface between coupling members. However, it has been found that the torque carrying capability of a coupling may be enhanced by providing a circumferential electrical insulation between radially inner and outer hubs which comprise the coupling member on the dynamoelectric machine side of the coupling.

Abstract: A Belleville spring type of overspeed trip mechanism is made to rotate at the same speed as the shaft by preventing slippage between the spring and the other members of the trip mechanism. Slippage is prevented by forming grooves in the periphery of the interior portion of the spring and using pins which coact with the grooves to prevent rotation of the spring relative to the other members.

Abstract: A head flange mounting device for mounting a head flange on a casing in a turbo-machine, such as a centrifugal compressor, is disclosed which includes a plurality of slide keyways formed on the inner surface of the casing and on the outer circumferential surface of the head flange in such a manner that each slide keyway formed on the casing and each slide keyway formed on the casing and each slide keyway formed on the head flange are in juxtaposed relation to form a pair of slide keyways. A slide key is held in each pair of slide keyways so as to keep the center axis of the head flange in alignment with the center axis of the casing at all times.

Abstract: A structural joint for a space frame having connecting members or nodes and tubular structural member is provided in which the shank of a connecting bolt, whose head is located within the hollow end portion of the tube, extends through an aperture in the tube end for engagement with a threaded opening in the node. The tube shank has a longitudinally extending keyway formed therein in which a key is slidably received. A nut or sleeve having an unthreaded inner bore receives the bolt shank and has an internal keyway which receives a portion of the key to rotatably lock the nut and bolt together so that the nut may be rotated to rotate the bolt and engage its shank in the threaded opening of the connecting member.

Abstract: Novel locking means for coupling shafts together is disclosed in which the shafts are threaded together thus axially and radially locating the first and second shafts, and are locked by means of a knurled portion encircling a first one of said shafts interacting with an internally knurled key having a peripheral shape corresponding to a removed portion of a second shaft whereby relative rotation of the shafts is provided. In a preferred embodiment, one of said shafts comprises a tubular shaft formed integrally with an impeller of a pump which may be formed of fiberglass so as to be corrosion resistant. A collar may be provided to simultaneously lock the key to the two shafts.

Abstract: A clamping connection clampingly joins an external structural part, such as a gear, with a shaft. The connection includes a conical clamping set having a plurality of interengaging conical rings for generating radial clamping forces. The connection includes a longitudinally slit element which directly engages the shaft and a key which enters the longitudinal slit of such element in a region of the element which is at or near the conical clamping set. The key and the longitudinal slit are so dimensioned that the flanks of the longitudinal slit abut the key prior to complete tightening of the clamping set.

Abstract: A tapered bushing and hub assembly for mounting on shafts sheaves, gears, sprockets, couplings and similar machine elements, in which a tapered, split bushing is inserted in a tapered bore in the machine element and a plurality of lugs secured by screws onto the hub force the bushing inwardly into the tapered bore, seating the bushing into face-to-face contact with the tapered surface of the hub and contracting the bushing firmly onto the shaft. Holes for the screws are provided in the hub and are arranged parallel with the axis of the bore, and preferably extend through the hub. Each lug bears against the side of the hub and the large end of the bushing as the screws are tightened into their respective holes. When the machine element is to be removed from the shaft, a lug may be secured by the screws on the opposite side of the hub to force the bushing outwardly from the tapered bore.

Abstract: Apparatus for driving a clutch plate includes a drive pin comprising a shank and a drive head rotatably mounted thereon. In a preferred embodiment, an intermediate clutch plate of a two-plate heavy duty clutch is axially but non-rotatably movable with respect to the clutch flywheel. The flywheel contains an axially extending annular flange from which the aforesaid shank fixedly extends radially inwardly. The drive head, rotatably mounted thereon, is disposed within a recess of the clutch plate for driving engagement of the plate. The apparatus provides a self-aligning clutch plate drive system which substantially minimizes the declutching failures experienced in conventional non-self-aligning drive systems. A friction member resiliently holds the drive head to the drive pin shank for ease of handling and installation of the apparatus. Typically, clutch plate drive recesses comprise slots having radially extending walls positioned parallel to the clutch plate axis of rotation.

Abstract: Disclosed is an improved ceramic heat recovery wheel driven on a shaft containing a metal hub which may be driven without slippage between the wheel and the hub. The wheel includes a splined metal shaft which mates with the disk including a plurality of radially extending keys equi-angularly spaced about its circumference. The ceramic disk includes an equal plurality of radially extending keyways which mate with the keys. In one embodiment, the keys are situated on only one side of the bore of the ceramic disk and the keyways do not extend through the bore. On the opposite face of the disk, a retainer plate surrounds the shaft. An axial force is applied to the retainer plate for restraining movement of the wheel in the axial direction.

Abstract: Apparatus is disclosed for securing a wheel and shaft which comprises a collar rigidly mounted to the shaft having an annular peripheral surface formed with radially spaced recesses, and a ring having an annular inner surface formed with radially spaced projections keyed for removable placement within the collar recesses. The apparatus further comprises means for releasibly coupling the ring with the wheel when positioned about the collar.

Abstract: A retaining assembly for retaining a key or the like within a slot that is defined in a housing includes a bar secured to the key. The bar includes an aperture through which passes a first end of a threaded rod. The rod includes a second end that is adapted to abutt against the housing. Threaded on the rod between the housing and the bar is a nut that may be threaded to bear against the bar producing a force against the bar that is transmitted to the key to prevent the key from sliding out of the slot. In the preferred embodiment, the slot and key are tapered.

Abstract: An ignition timing method and apparatus is disclosed for presetting the ignition timing of an internal combustion engine having an engine driven shaft and a wheel supported on that shaft carrying a portion of the ignition system with another portion of that ignition system supported by the engine in a relatively fixed position adjacent the wheel. A slot is provided in the shaft surface extending generally in the direction of the axis of rotation of the shaft and a further slot is provided along an inner hub of the wheel. A selected one of several different keys including spacer keys of a generally frustoconical configuration having an outer protuberance for engaging a keyway in the wheel hub and an inner protuberance for engaging a keyway in the shaft is selected and positioned intermediate the shaft and hub to fix the relative angular orientation between the shaft and hub with those keys of the frustoconical sleeve configuration compensating for the dissimilarity in the size between the hub and shaft.

Abstract: A graphite target disk for a rotating anode x-ray tube is adapted for mounting it on a rotor stem in a manner which reduces the probability of the target cracking when it is subjected to high magnitude thermal and rotational shocks. The graphite disk has a counterbore in its front and rear faces which are connected with a smaller central bore so the counterbores define annular shoulders. A washer having a slot which serves as a keyway is brazed concentrically onto the shoulder of the front counterbore. The rotor stem has a threaded end which registers complementarily in the slot to effect a driving connection and the stem has a radially extending shoulder which interfaces with the shoulder in the rear counterbore. A nut on the threaded stem end secures the target to the stem.

Abstract: Steam introduced into a turbine casing from a steam inlet is longitudinally divided and each divided steam portion flows in respective first stages which are disposed on the shaft adjacent to each other. The shaft and a plurality of disks which are manufactured independently are made integral by a thermal shrink. In order to reduce the thermal distortion effects on the shaft caused by keys interconnecting the disks and shaft, first key grooves formed on an outer surface of the shaft and an inner surface of the disks of one first stage and a first key closely disposed in the first key grooves are arranged in symmetry with respect to the center of the shaft, to second key grooves formed on an inner surface of the disk of the other first stage with a second key closely disposed in the second grooves. Other preferred embodiments include dummy grooves and keys to balance the thermal distortion effects of the keys interconnecting the disks and shaft.

Abstract: A dual wheel and axle assembly having a wedge lock hub and axle assembly with an auxiliary clamp to augment the grip of the hub on the drive axle. A drive is provided to force bushing segments between the wheel hub and the drive axle to firmly lock the wheel hub and axle together. One of the bushing segments has an extension which extends axially along the drive shaft and carries a clamp in the form of at least one U-bolt having curvature mating that of the peripheral surface of the drive axle. The U-bolt is firmly clamped against a portion of the drive axle while the extension of the bushing segment which has an integral key firmly seats in a key slot of the drive axle to augment the grip of the wheel hub on the drive axle to accommodate additional torque produced by adding dual wheels to a conventional single wheel drive on the tractor.

Abstract: A substantially annular ring having a bore sufficiently large to engage each of two oscillatory shafts, the ring having a radial slot through to the bore and a circumferential slot through to the bore running from the radial slot to a point on the ring opposite the radial slot, thereby forming two semi-annular, rigid spring arms, each having one free end, a tapered key secured in a transverse slot on the inner surface of the central portion of each of the spring arms, the keys engaging tapered keyseats on the ends of each of the shafts, and means for detachably clamping the free ends of each of the spring arms to the ring across the radial slot, thereby independently locking each of the shafts into the coupling.In an alternative embodiment, the annular ring has a second radial slot through to the bore at the point on the ring opposite the other radial slot, forming the spring arms into completely detachable coupling segments.

Abstract: A releasable hub-shaft connection mechanism, in particular to be used in heavy machinery for transmitting strong torques, has a shaft, a hub surrounding the shaft and at least one bore with its axis parallel to the shaft and located at the junction of the shaft and the hub so as to penetrate each equally. A bushing with a cylindrical outer face and a conical inner face is accommodated in the at least one bore, and a tapering bolt is axially displaceable in the bushing, by means of this bolt the bushing is expandible. At a closed bottom end of the bushing, where the bushing has the smallest inner diameter, a further bore extending through the bushing to the outside is located and is connectable to a pressure medium conduit. The tapering bolt is displaceable from a clamped into a release position when the further bore is supplied with a pressure medium from said pressure medium conduit.

Abstract: The disclosure illustrates an oil seal assembly for a keyway which receives a pin for an interconnection between an accessory drive pulley and a shaft extending from a diesel engine accessory drive gear box. The oil seal consists of an L-shaped elastomeric seal with one leg of the L extending into the keyway and the other leg providing a shoulder which abuts the shaft adjacent the keyway end. A nut threaded onto the end of the shaft holds a washer against the L-shaped seal thus compressing it. So compressed, the seal expands against the walls of the keyway to form an effective seal against the flow of oil therethrough. Preferably, the seal is formed from material which swells exceedingly when immersed in petroleum products. As a result, any leakage causes the seal to expand and stop further oil flow.

Abstract: For adjustable length linear rods, such as the rods of linear actuators, employing threadedly connected internally threaded female and externally threaded male members, an antirotation lock is provided which includes a pair of semi-circular keys each including a projection fitting in a notch on the end face of the female member and an internal flat cooperating with an external flat on the male member. Each key includes a conical surface cooperating with a conical surface of a ring driven toward the female member by a nut threaded on the male member, thus axially to force the projections into the notches, and radially to force the flats of the keys against the flats of the male member.

Abstract: A coupling member is shrink fitted onto the end of a dynamoelectric machine shaft and keyed thereto with a plurality of hollow keys of circular cross section which distort if excessive torque is applied to the coupling, reducing the risk of coupling failure. This coupling exhibits the properties of high strength and low weight which eliminates lateral shaft resonance at operating speeds.

Abstract: A single piece coupling for shafts comprises opposite half sections each with an arcuate recess for engaging one side of two axially aligned shafts. There are also spaces forming a keyway for reception of a conventional key with which the shafts are provided. The half sections are initially formed in a spread apart condition with captive edges secured to each other by a section of the coupling metal forming thereby a hinge. After adjacent ends of the shafts are slid into the coupling to abutting positions free edges of the half sections are bolted together drawing the half sections simultaneously into engagement with the shafts and the key.

Abstract: A power actuated 90.degree. rotation valve in which the power actuator is coupled to the valve stem by a socket which simultaneously engages a lug fixed with the valve stem and a nut threaded to said valve stem so that the nut cannot loosen during actuation of the valve.

Abstract: A telescopic drive line includes an inner square drive shaft and an outer drive tube having a square bore at one end. A thin-walled liner in the bore has an inner surface providing a low-friction axial bearing for the drive shaft. The considerably greater coefficient of friction between the outer body of the liner and the bore of the drive tube secures the liner axially in the bore irrespective of the radial force applied to the liner. Only supplementary securement is provided by a key fitted in a keyway. The several liners fit between inward projections of the key. An outward projection fitting a recess in the drive tube secures the key axially. Deflection of the exposed end of the key allows the projecting tab to be disengaged from the recess for insertion and withdrawal of the key along with the several sleeves.

Abstract: A flexible drive coupling for power transmission shafts having coupling elements of plastic material containing improved metal elements therein to form strengthened locking means for securing the coupling elements on the coupled transmission shafts.

Abstract: A power transfer assembly having a hub and a circular transfer member provided with a common central axis. A central bore extends along the axis, being defined by opposed, different diameter, concentric inner peripheral surfaces of the central portion. A cylindrical shaft is cradled on one side by the smaller diameter surface and is urged into its cradled condition by spaced radial locking bolts with jam nuts. The smaller diameter surface has a keyway aligned axially with the keyway of the shaft, the two keyways sharing a common key.

Abstract: An electromagnetic friction coupling includes an armature assembly, a pole assembly and a coil energizable to effect engagement of the armature and pole assemblies. The armature assembly includes an armature plate and a hub member which are coupled together by means for compensating for misalignment between the armature plate and hub members. The hub member is adapted to be connected to a shaft for rotation therewith and the armature member is disposed coaxially of the hub member and is connected for rotation therewith. The hub member and armature plate include outer and inner surfaces, respectively, which include a plurality of substantially semicircular recesses disposed therein. Each of the recesses disposed on the armature plate and the complementary recesses on the hub member define a plurality of substantially cylindrical openings therebetween each of which is adapted to receive a rotatable cylindrical pin therein to couple the hub member and armature plate.