Abstract: A thread cutting diestock assembly is disclosed comprising a ratchet housing having a bore adapted to selectively and detachably receive a large thread cutting die head or an adaptor ring, each of which is provided with ratchet teeth engaged by a pawl on the ratchet housing so as to be rotatably therewith. The adaptor ring has a polygonal bore adapted to detachably receive a small thread cutting die head which interengages with the polygonal bore to preclude relative rotation between the die head and adaptor ring. A circumferentially extending recess in the bore in the ratchet housing carriers a non-circular split retaining spring ring which interengages with the large die head or adaptor ring to detachably secure the latter in the ratchet housing bore, and a circumferentially extending groove in the adaptor ring bore carries a polygonal split retaining spring ring which interengages with the smaller die head to detachably secure the latter in the adaptor ring bore.

Abstract: A circular waved retaining ring is formed from two turns of a flat elongate wire strip and which follow a continuous sinusoidal wave path that includes a series of waves equidistantly spaced about the ring wavepath, each wave having a shoulder portion which bears against generally parallel surfaces of the working elements positioned on a shaft or in a cylinder bore. The ring fits in a rectangular groove formed either on a shaft or in a cylinder bore, the width of the groove being slightly greater than the distance between successive wave crests and troughs.

Abstract: A fan assembly, adapted for easy disassembly for storage and transportation and for easy assembly, includes a housing having a protruding tab-like portion and which is adapted to house a motor and blade assembly. A vertical tapered supporting arm having a narrowed fork-shaped end and an opposite enlarged base end is attached to the housing by having the tangs of the fork-shaped end of the tapered supporting arm adapted to receive therebetween the protruding tab-like portion of the housing. The protruding tab-like portion of the housing and the tangs of the fork-shaped end of the tapered supporting arm, each has a passageway aligned to receive a threaded bolt therethrough. A nut is threadably mated with the bolt to retain the protruding tab-like portion of the housing and the fork-shaped end of the tapered supporting arm in a releasable, selectively positionable compressive relationship.

Abstract: In an engine housing and transmission housing adapted to be moved axially together, an easily actuatable and releasable attachment means for joining the housings coaxially together so as to prevent relative rotation and axial separation. Retention grooves cut through interfitting non-rotation splines on the housings provide oppositely facing limit surfaces, with one retention groove also providing a pocket for an expandable and contractable retention ring. In a stored position, the ring is located outside of the root of the splines, so that the housings may be pushed together without resistance, which also serves to align the retention grooves. The ring is then contracted by a single turnable fastener, moving it out of the pocket and between the oppositely facing limit surfaces to prevent axial separation of the housings.

Abstract: A detably attaching mechanism for a cup of a lubricator or a filter used with an air-actuated device comprising such cup containing therein a quantity of lubrication oil or filter elements, means to supply a quantity of lubrication oil from the cup into an air stream flowing from an inlet to an outlet or to introduce the air stream through the filter elements contained within the cup, a cover mounted on the cup and a protective cylinder mounted around the cup, characterized by that the protective cylinder is provided on its outer periphery with a locking piece adapted to have its front or top end being outwardly tilted away from the outer periphery of the protective cylinder by depressing its rear or lower end and this locking piece is mounted with interposition of an elastically flexible leg on the outer periphery of the protective cylinder and that the cover is provided in its outer periphery with receiving means adapted to receive the front or top end of the locking piece upon completion of attachment of t

Abstract: A spring clip which is used to secure the shank of a cutting pick to a pick box or cutting drum in a mining machine. The clip is formed of spring steel and has spaced legs joined by a bight portion. Associated with the bight portion is a bearing part which bears upon the shank of the cutting pick when the clip has been aligned with the shank and has been forced transversely to the shank so that the shank is received between the legs.

Abstract: A cargo restraint system for the bed of a truck comprising primary cargo securing element and cargo securing members clampingly engageable with the primary cargo securing element. A bed liner may also be included in the combination. Abutment dual tie down members are also readily utilizeable with the system to provide improved cargo restraint. An elongated stop block may be releasably assembled into brackets clampingly engaged for adjustable movement on a pair of primary securing elements as part of a multi-faceted, but easily disassembled system for cargo restraint for use in trucks, vans, station wagons and the like.

Abstract: A device is provided for snap fitting an electric apparatus on a support bar comprising, in a case, a housing containing a blade spring and opening into a groove in which one of the edges of the support bar may be engaged against the action of the blade spring. This latter is disposed inside the housing so as to exert a transverse force on said edge and has, at its end situated towards the edge, at least one fastening step of a hardness greater than that of the bar.

Abstract: In the case of a plug connection for drilling or boring tubes, rods and worms for earth boring equipment with a male part and a female part, with a radial coupling for torque transfer and with an axial coupling having in the overlap zone of the male and female parts a locking device which can be introduced into an annulus for transferring axial forces, it is provided that the locking device is constructed as a multilink chain, which essentially extends around the entire annulus and which is introduced through the female part into the annulus via a single opening. This device provides a plug connection, which has a very simple construction and after extremely rapid installation is suitable for transferring very high forces.

Abstract: A bracket (10) for releasably engaging a goggle (14) to a headgear (12). The bracket (10) includes a receptacle (52) with inside tapered sidewalls (124) matable with a goggle stud (55) having corresponding outer tapered sidewalls (125). A release lever (22) is housed in said stud (55) and includes a transverse notch (140) latchable with a lug (146) on a catch arm (144) adjustably fixed within the receptacle (52). The catch arm (144) is adjustable by an eccentric (162) while the goggle stud (55) is engaged within the receptacle (52).

Abstract: An improved electric motor ventilation structure including a "pull through" fan associated with a motor endshield including a shaft for supporting a fan on one end thereof, and defining a preselectively spaced and contoured air inlet and air circulating chamber adjacent the stator and rotor assembly of the electric motor to cause the circulating air to break the "hot" boundary layer of air immediately adjacent the motor windings.

Abstract: A retaining ring includes a hole in one end and a slot in the other end for use in determining the orientation of the ring. Such orientation is accomplished by randomly placing a plurality of such rings on a rail for similarly shaped member and advancing the rings along the rail until the holes or slots in the rings pass over a sorting rod. The rings with the holes engaged by the sorting rod are supported by the rod for transfer to another station such as another rail where a stack of the rings may be taped together. The rings with the slots engaged by the sorting rod with fall off the sorting rod in a controlled manner, and may be transferred onto another rail or other suitable support for orienting the other rings in the opposite direction to those which remained on the sorting rod for securing together in stacked relation similar to the rod oriented rings.

Abstract: A threadless retention apparatus holds a spindle (2) against a bearing (22) in a helicopter hub and has a split ring (10) mating with an annular spindle groove (4) and a loading hoop (32) holding the ring (10) within the groove (4), the loading hoop (32) locating the ring (10) and spindle (2) in relation to the bearing (10) as a unit.

Abstract: A ball joint assembly includes a body member having a socket defined by a cylindrical side wall and a bottom wall. A ball stud having a ball end portion is received in the socket, and is adapted to swivel with respect to the body member through a predetermined cone angle. The ball end is retained in the socket by a split retaining ring having a circular cross section which cooperates between the socket and the ball end portion to prevent removal of the ball end portion from the socket. The ring is seated in an arcuate annular seat formed in the cylindrical side wall of the socket, and has an arcuate extent of less than 180 degrees from an intersection of the seat and the socket side wall. A conical bearing wall extends upwardly and inwardly from the arcuate seat to the socket side wall, and is tangent to the arcuate annular seat.

Abstract: An apparatus for fixing the longitudinal position of a shaft, e.g., a valve stem, within the bore of a body, e.g., a valve body comprising a shaft having a plurality of peripherally extending, generally equally spaced, discrete grooves, the grooved portion of the shaft being received in the bore, a stop being provided internally of the bore, a washer having an inwardly tapered abutment surface engaging the stop, a split ring received on the shaft and engaging the inwardly tapered abutment surface, the apparatus further including a gland assembly including a second washer for engagement with the first washer, the gland assembly urging the second washer against the first washer, the split ring being forced into engagement with the abutment surface and into a groove adjacent the abutment surface.

Abstract: The attachment device incorporates a bearing zone (78) and a projection (80) formed in the web (16) of a shoe of a drum brake. A portion (68) of the component (46) to be attached to the shoe is retained in a working position between the bearing zone (78) and the projection (80) by a spring (82).

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: The valving element of a valve has an axially projecting tubular extension with an open-ended socket for one end section of a shank which has a larger-diameter cylindrical portion in the deepmost portion of the socket, a smaller diameter cylindrical portion adjacent the open end of the socket, and a concave annular surface between the two cylindrical portions. The concave surface abuts a split ring which has a circular cross-sectional outline and is held in the socket as a result of deformation of the extension close to the open end of the socket. The annular surface abuts the adjacent portion of the external surface of the split ring, the same as the adjacent portion of the internal surface of the extension.

Abstract: A first turbine rotor hub 32 and a second turbine rotor hub 42 each have respective internal splines 52, 62 which engage coaxial, non-concentric external splines 54, 64 on a shaft 20 and are in thrust bearing relationship cooperating, circumferentially disposed, radially inwardly extending lugs 35, 45 on each hub 32, 42 define radially inwardly extending projections 80. A resilient split metal band 60, having circumferentially disposed apertures 61 overlies the projections 80 which extend through the apertures 61. The uninstalled diameter of the band is greater than the installed diameter such that the band is self-retaining. The assembly requires no bolts between the rotor stages 30 and 40 to hold the two stages together. In another embodiment the turbine stages 30, 40 are part of a turbine module 5 which includes a stator assembly 94.

Abstract: A rotary shaft holding mechanism for a rotary variable element comprises a frame for rotatably supporting a rotary shaft of a rotary variable element such as a variable capacitor, a resilient member fixedly mounted to the frame for urging the rotary shaft toward the frame, and a retainer member fixedly mounted to the frame for rotatably supporting an externally adjusting end of the rotary shaft so as to rotatably hold the rotary shaft.

Abstract: A joint element for securing a speedometer shaft is disclosed which can be readily cut to allow removal of the shaft without damage to other parts when the speedometer is disassembled for service. The joint element comprises a ring of a flexible plastic material with a tapered edge on an inner surface thereof. The convex edge corresponds to a circular tapered recess on the shaft, and notches in said convex edge permit the ring to be pushed onto the shaft until said convex edge mates with said recess and permit the ring to be easily cut from the speedometer shaft after the ring is installed on the shaft.

Abstract: The clutch comprises a clutch plate 10 which can be retracted by a release mechanism 20 to release a driven plate 12. The release mechanism comprises first and second members 24, 26 and an intermediate detent 25. The detent is rotatably mounted on member 24. The detent is located between the members in an operative position by urging the first member in one direction relative to the second member. To separate the members, the first member is urged further in the one direction to enable a detent release ring 37 to rotate the detent 25 into a release position.

Abstract: Connection means for connecting two components such as conveyor channel sections or guide sections includes an elongate connector. The connector is insertible into laterally-open recesses formed in coupling elements attached to the two components. The laterally-open recesses define an elongate aperture which is slightly longer than the connector so that the connector is received within the aperture with a predetermined amount of axial play. A retaining element prevents axial movement of the connector within the aperture by filling up the space available for said predetermined amount of axial play. The retaining element is an annular disc made of corrosion-resistant, resiliently deformable plastics material. That portion of the resilient element which, in use, is positioned at the mouth of the aperture is, at least partially, of reduced wall thickness when compared with the wall thickness of the remaining part of the retaining element.

Abstract: A wafer style butterfly valve has a valve body including a through opening with a cylindrical wall coaxially surrounding an end portion of the fluid passage. The insert is retained within the valve body by at least one wire form held in an annular channel defined by facing annular grooves in the valve body wall and the insert peripheral wall. The wire form includes a member projecting therefrom for engaging a surface of the annular groove in the valve body wall or the annular groove in the insert peripheral wall. A tapered wall at one end of the insert provides for expansion of the wire form during insertion of the insert into the valve body.

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: A method of securing a cover to the end of a thin-walled tube using a fla. According to the invention the flange is slidably disposed in the tube and is restrained from being pulled out of the tube by a resilient ring accommodated in a shallow groove in the inner wall of the tube. The ring is maintained in position by a supporting edge of the cover or, alternatively, by bolts disposed closely to the circumferential edge of the cover to secure the cover to the flange.

Abstract: A building structure including a plurality of horizontally disposed hollow tubular structural members stacked to form walls joined at a corner, a method of constructing the same, and a wall member, and end connector for a wall member, utilized therein. In one form of the invention, wall members are formed of hollow metal tubes each having affixed to at least one end an end connector having a notch for interlocking with a like end connector of at least one intersecting, abutting wall member.

Abstract: An adapter for detachably mounting a drill bit on an extension, is described as having a button-type catch with outwardly diverging flanges, and a separate, split ring of spring steel for exerting a spring biasing force against the button catch. The button catch is seated in a recess which is formed in the split ring. In another embodiment of the invention, the split ring is provided with a protruding finger for initially holding the button catch, so that it can be easily inserted within the bore of the drill bit extension, prior to the final positioning of the adapter within the bore.

Abstract: A drive system in which a driven member is mounted on a shaft member to rotate in unison therewith. The driven member has a protrusion extending outwardly from one surface thereof. A retaining ring having an open end is mounted on the shaft member. The open end of the retaining ring meshes with the protrusion extending outwardly from the driven member so as to rotate in unison therewith.

Abstract: A ball joint in which the ball of a ball stud is accommodated in an accommodating section of a socket. The accommodating section has an annular seat on which a stopper is provided and a cap to be fitted in the accommodating section has another stopper. The two stoppers are received in a gap in an elastic ring-like member mounted in the annular seat such that a turning of the cap will increase the width of the gap to increase the diameter of the elastic ring-like member. In this state, the ball of the ball stud can be accommodated in the accommodating section of the socket.

Abstract: A snap stud usable in window hardware, such as window operators and window hinges, for releasably pivotally interconnecting a pair of members. The snap stud has a stud extending from a first of the members and provided with an external peripheral groove which mounts a C-ring of spring music wire. The C-ring has a retention position partially extending beyond the periphery of the stud for overlying a second of the members and a compressed release position substantially entirely within the periphery of the stud, with the movement of the C-ring to the compressed release position occurring automatically in assembly and disassembly of said members.

Abstract: This connection means comprises a male connector (1) with a circular groove (5) and a female connector comprising a body (2), a cap (3) and a sleeve (4). The cap (3) hangs from the bottom end of body 2 within which it is able to partly slide. The cap has a bearing surface (7) bearing on the male connector (1) and its bottom part (9) covers the male connector. This bottom part is provided with a circular series of openings (10) each equipped with a finger (11) operable to slide radially. These fingers cooperate with windows (27) in a conical wall (26) of the sleeve (4). Connection is made by gravity, by body 2 pushing down on sleeve 4, which slides downward causing the fingers (11) to slide radially inward. Disconnection is accomplished by sending oil pressure through purposely provided channels (35, 33, 30) into a chamber (20), causing the sleeve (4) to slide up and the fingers (11) to retract.

Abstract: A wafer style butterfly valve has a valve body including a through opening with a cylindrical wall coaxially surrounding an end portion of the fluid passage. The insert is retained within the valve body by one or more resilient wire forms held in an annular channel defined by facing annular grooves in the valve body wall and the insert peripheral wall. The wire forms have circular sections while the insert groove has a semi-circular section, thereby providing a self-centering and self-locking effect. A tapered wall at one end of the insert provides expansion for the wire form during insertion of the insert into the valve body.

Abstract: This disclosure relates to a quick connect coupling including a tubular socket or receptacle part having an internal groove formed therein, a tubular nipple or insert part having an external groove formed thereon, and a snap ring. The nipple is insertable into the socket and when so inserted the two grooves are radially aligned. The snap ring is mounted in and extends between the two grooves to lock the socket and the nipple in assembled relation. Prior to final assembly, the snap ring is positioned in the socket groove, and in the space within the socket groove and around the snap ring is applied a relatively viscous fluid. This fluid, which may be a grease, holds the snap ring in the desired position in the groove prior to and during assembly, and it also serves as a lubricant on the ring which facilitates the assembly of the parts.The disclosure also describes the method of assembly of the coupling.

Abstract: A method and apparatus for attaching the wheels of a dual wheel caster to its axle with annular plastic bushings ultrasonically welded to the wheels that have three integral curved spring fingers that snap into annular recesses in the axle as the wheels are pushed onto the axle.

Abstract: A mechanically attached load pad for the duct of a liquid metal nuclear reactor fuel assembly.

Abstract: A rotatable shaft assembly comprising a body with a bore having a first end and a second end and an annular abutment formed intermediate the first and second ends of the bore and extending radially inwardly into the bore, a shaft or stem rotatably received in the bore, said shaft having a reduced diameter portion forming an annular shoulder which faces the second end of the bore, a retaining collar disposed in the bore adjacent the abutment, the retaining collar including an annular band and a plurality of resiliently, radially deflectable fingers depending radially inwardly from said band, each of the fingers forming a strut portion terminating in a free end which engages the shoulder on the shaft upon movement of shaft toward the second end of the bore and a stop member disposed in the bore for stopping movement of the retaining collar toward the second end of the bore.

Abstract: This invention teaches a means to retain a cutter cone onto a journal bearing of an earth boring rotary cone rock bit. Complementary and registering annular grooves are formed in the bearing surfaces of the journal and the cone. A tangential entry groove transitions from an end of the journal to the annular groove in the journal. Simultaneous 360.degree. rotation and axial movement of the cone over the journal, in combination with a ring distortion ramp block in the cone, threads an end of a split cone retention ring through the entry groove in the journal into the registering annular grooves, thereby retaining the cone on the journal.

Abstract: A transmitter cylinder is used in a hydraulic system and particularly the ake system of an automotive vehicle. To prevent undesired access into the transmitter cylinder, a lock part is installed at the pedal facing end of the cylinder. The lock part is an annulus. The pedal connected piston extends through the lock part and into the transmitter cylinder. The annular lock part is shaped so that its inner bore will guide and center the piston projecting into the cylinder. A locking element for holding the lock part in the cylinder bore is defined. It is either a radial projection from the lock part or it is a retaining ring held in a groove on the exterior of the lock part. In either case, the locking element projects into a groove defined in the interior of the cylinder bore, which retains the lock part in the cylinder bore against undesired extraction. The lock part may be a hollow annulus or a solid body. The lock part is appropriately configured to permit its extraction with appropriate tools.

Abstract: An excavating tooth has a blade of substantially constant thickness with a transverse shoulder at its inner end and a longitudinal gusset. The tooth terminates in a reduced diameter spindle and a button with a shoulder on its forward face. The adapter has a recess to receive the tooth, the forward end of the adapter receiving the thrust of the tooth because the transverse shoulder bears thereagainst. A top to bottom opening in the adapter intersects the recess at the spindle. A pair of grooves are formed on the outside edges of the opening with projections extending inward from the outer walls of the grooves. A retainer is formed of round cross-section wire and slides in the grooves between locked and unlocked positions, the diameter of the wire being less than the width of the grooves. The retainer is symmetrical about its longitudinal center line, having a slightly upward bowed top connector and legs depending from either end of the connector.

Abstract: A pipe hanger arranged to be positioned about a pipe to be suspended, moved to closed position and engaged upon a threaded support rod so as to carry the pipe is disclosed. The hanger takes the form of an elongated band preferably metal, the ends of which are brought into proximity to one another by bending the band into a general oval shape, the ends of the band are formed in configurations registering with the thread pattern of the support rod when engaged thereagainst and a ferrule is moved downwardly over the ends of the band so as to move the same into forceful engagement with the threaded supporting rod. Locking devices on the ferrule engage at least one of the ends of the band and/or the support rod so as to hold the ferrule in a position in which the ends of the band remain in tight non-slipping engagement with the threaded support rod.

Abstract: The invention pertains to vehicle brake actuators of the expansible motor type wherein the actuator includes a cylinder having a piston and piston rod assembly reciprocal therein, a helical spring biases the piston in a braking direction, and a pressurized medium, such as hydraulic fluid, forces the piston in a spring compressing direction. The unique features include a piston drawn from sheet metal wherein the piston rod is pressed thereinto, and the piston seals are retained in position by a wire ring having an interference fit with the piston. Additionally, novelty resides in the use of a retainer formed of wire or of stamped construction having protuberances defined thereon for retaining the cylinder end cap upon the cylinder in a manner to permit ease and safety of assembly, and uniform force distribution.

Abstract: A clip received in a groove about an engine fuel injector and rotated into grooves in a fuel rail body secures the injector in its socket in the fuel rail body.

Abstract: The disclosure relates to an improved latch for releasably latching the hinged spare tire carrier to the tailgate or rear door of a vehicle, such latch being characterized by a mounting bracket attached to the carrier and movable therewith that carries a tapered guide pin projecting therefrom which cooperates with an annular cam surface bordering an opening sized to receive same provided in the latch plate fastened to the door or tailgate so as to move the interlocking elements of the latch into properly aligned relation for latched engagement. The guide pin also functions as a pivot for a release lever that carries one of the interlocking elements and which is in the form of a latch pin paralleling the guide pin offset to one side thereof.

Abstract: A molded-plastic retaining member is mounted within the gear case or other internal housing member of a power tool and is keyed thereto. Screws pass through openings in the gear case cover and are received axially in respective bosses formed within the retaining member, thereby securing the gear case cover to the gear case. The gear case cover is formed with an internal hub, and locating ribs on the retaining member radially engage the hub to prevent the retaining member from disengaging the gear case, as the gear case cover is secured to the retaining member. Preferably, the retaining member comprises a partially-formed resilient ring which is molded from a suitable plastic material and is deformable during the assembly operation. Additionally, the internal hub on the gear case cover is provided with a bearing boss, and a bearing is mounted therein for journaling the rear portion of the output spindle.

Abstract: There is disclosed an acoustic earmuff device wherein there is provided an articulated earmuff-to-headband attachment construction which is readily fabricated and assembled and which provides sufficient freedom of pivotal motion of the earmuff relative to the headband as to allow each earmuff to readily assume the proper wearing position with respect to the head of the user. The invention utilizes a soft resilient grommet fitted through an aperture in the back wall of a rigid earcup to articulatingly capture a rigid stud extending inwardly from an end portion of a resilient headband.

Abstract: A winch having a central shaft held axially in place by keys in the form of collets, a tongue of which penetrates an aperture in a stationary column of the winch and runs in a groove in the shaft. The collets are readily assembled to the winch by being trapped in a recess under a top cap. Bolts may, in a self-tailing winch, not only restrain the collets but also a hub bearing the arm of a line guide. In a self-tailing winch, the bolts pass through passages in the collets so that the collets attach the entire winch top assembly to the casing and hold it in the desired angular position.

Abstract: Disclosed is a unique electromagnetic device, e.g. motor, construction in which a cylindrical tubular casing contains a stator assembly, a rotor assembly and bearings. The rotor assembly is supported by the bearings within the tubular casing which are in turn supported by a pair of end bells provided at each axial end of the tubular housing to close the same. Each axial end of the tubular housing contains, on an inner periphery thereof, an annular groove, at least one of the annular grooves having a tapered side wall at that side wall closest to an end of the housing such that the width of the associated groove progressively decreases along its depth. Each of the end bells contains a groove on an outer peripheral surface thereof which fits within the tubular housing, the outer peripheral grooves of the end bells substantially aligning with the interior peripheral grooves of the tubular housing.

Abstract: In a ball head lock nut as a component element of bicycle head parts, a split clamping ring is received within an annular groove formed in a threaded, cylindrical internal wall of a substantially annular nut body; a deformable fixing piece, which has a diametrically extending slot formed in its inner end wall, is disposed within a radially extending threaded through hole formed in the annular nut body, with the slot engaged with a part of the split clamping ring; and a set screw is screwed into the radially extending threaded through hole to push the deformable fixing piece axially inwardly for forcible compression and deformation.

Abstract: This invention comprehends a means for coupling an oscillator mechanism of a fishing reel to the spool of the fishing reel so that the spool will reciprocate back and forth as the fishing line is wound thereon. The spool shaft is received in a mounting mechanism associated with the yoke strap cam follower portion of the oscillating mechanism. An undercut groove on the shaft facilitates its fastening to the yoke strap.