Abstract: A locking mechanism comprising a latch mechanism having a plate-like body defining a completely enclosed aperture dimensioned to receive a spindle and having a manually operable mechanism for releasably attaching the body to the arm to prevent translational movement of the body in a plane perpendicular to the spindle. Other mechanisms restrict axial movement of the spindle and prevent rotation of the spindle.

Abstract: A mechanical connection system comprises a first body 10 defining a receptacle 38 and a second body 12 defining a pin 24 matingly receivable in said receptacle 38 by relative movement in a first directional mode. A primary latch 64 is engagable between the first 10 and second 12 bodies to retain the pin 24 in the receptacle 38, the primary latch 64 being reciprocable in a second directional mode transverse to the first directional mode. A lock member 50 carried by one of the bodies 10 or 12 is operatively associated with the primary latch 64 and movable, transverse to the second directional mode, between a locking position maintaining engagement of the primary latch 64 and a releasing position permitting release of the primary latch 64. The lock member 50 includes an operator portion 54 engagable to move the lock member 50 from its locking position to its releasing position. The operator 54 is located internally of the first body 10.

Abstract: A connector for attaching a central core wire (11) of a flexible cable to a control element (13) has a cable guide (15) attached to the core wire (11). A pivot pin (22) extending through a bore in the cable guide (15) is attached to the control element (13) and has an annular groove (23) in one end. A locking body (24) has a cylindrical section (25) reciprocally mounted on the cable guide (15) and an arm (27) extending forward to engage the groove (23) in the pivot pin (22). A notch (29) at the end of the arm (27) snaps around the pivot pin (22) to hold it in place.

Abstract: An outer collar on a power takeoff yoke sleeve locks against an inner collar to rotate the yoke and sleeve in a first direction to align splines within the sleeve with splines on a power takeoff stub shaft. Cooperating teeth between the inner collar and the outer collar permit the outer collar to rotate freely in the opposite direction. The outer collar surrounds the inner collar and detent operators and the small end of a ball which protects the yoke from unintentional contact. The outer collar is grasped and is slightly turned to align the yoke splines and stub shaft splines while pushing the outer collar toward the stub shaft to slide the sleeve over the stub shaft. The stub shaft pushes a detent holdout longitudinally and releases the detent to move inward into a groove on the stub shaft. A heavy spring on the sleeve pushes a detent operating and locking device axially to move the detent inward into the groove in the stub shaft.

Abstract: An improved wedge and clamp locking system having an unidirectional interlock which can be disassembled to unlock the system rather than reversing the locking procedure by driving out the wedge.

Abstract: A locking bracket for securing a hook and slot connection between the vertical and horizontal support members of a rack assembly is slidably mounted on the upper surface of the horizontal support member and includes locking portions adapted for being slidably received in openings of the vertical member slots above the horizontal member hooks to prevent vertical disassociation of the support members. The locking portions comprise inclined surfaces which are wedged into the slot openings to secure the connection.

Abstract: An excavating tooth wherein the coupling between the point and the adapter is achieved through an external lock to convert lateral point unseating forces from shear to compression.

Abstract: A cable connector for flexible sewer cleaning rods includes a male coupling member and a female coupling member, engageable by transverse sliding. A locking pin extends through a transverse bore in the female coupling member and through a transverse slot in the head of the male coupling member. The pin is rotatable and includes a cut-out on one lateral side thereof, the cut-out being sized to permit the male member to slide out of the slot when the cut-out is rotated toward the male member.

Abstract: A torque transmitting coupling including a housing, an internally splined opening in the housing being adapted to receive an externally splined shaft. Locking structure is provided for selectively locking the shaft into the opening in the housing, such locking structure being biased to a locked position and selectively movable to an unlocked position. The locking structure includes means for automatically locking the shaft into the housing upon insertion of the shaft into the housing and further includes a structure for allowing unlocking of the shaft from the housing.

Abstract: To prevent personal injury and property damage by accidental displacement of a hitch tow-pin, an easily mountable unit has an arm horizontally swingable to and from a position above the upper end of the conventional tow-pin of a clevis-type hitch. The pivot pin for the swingable arm can also serve as part of the unit's mounting structure by extending through a bore in, and anchored to, a draw bar. Or the pivot pin can be fixed to a sleeve slidable over a draw bar. Each species employs a detent device to prevent accidental arm movement away from its draw-pin-retaining position.

Abstract: Ram bodies mounted in transverse bores of a blowout preventer body with a longitudinal bore therethrough are operable by operating means extending through closures on one end of the transverse bores to move the rams to close off fluid communication through the longitudinal bore in the body and to retract the rams from the longitudinal bore. Removable seal means are provided on each ram body to seal with the transverse bore in which each ram body is mounted. Removable seal means extend diametrically across the front of each ram for sealingly engaging an elongate member in the longitudinal bore when the rams are closed. The removable seal means is retained in position by non-torquing means during use but may be readily replaced when necessary. Self energizing seal means on the ram body sealingly engage the transverse bores.

Abstract: A feature of this invention is the provision of a quick disconnect and connect mechanism for the transmission of torsional power between two concentric shafts including a collar, spring means which biases said collar to a first disposition whereat it holds at least one element in a position interlocking said two shafts, and cam means for converting torsional movement of said collar to axial movement of said collar against the bias of said spring means to translate said collar to a second disposition whereat said element is free to unlock said two shafts.

Abstract: Two staple-like spring metal parts designated "lock" and "key" are provided to retain an excavating tooth in a holder. The lock part slides into an opening in the holder for the tooth around a reduced diameter portion of the shank of the tooth and thereby prevents withdrawal of the tooth by interfering with the outward movement of a button on the extreme end of the shank. The legs of the lock are biased outwardly by reason of the unstressed shape of the lock. These outwardly biased legs are forced inward by insertion in the opening of a key which fits outward of the lock and forces the legs of the lock inward into locked position, engaging a portion of the shank. When the key is removed, it provides space for outward movement of the legs of the lock and thereby prevents a tendency of dirt compacting in the opening of the holder from preventing withdrawal of the lock.

Abstract: An extensible and retractable strut comprising telescoping pairs of members the outer of which carries a manually operable collar that is slideable between locking and unlocking positions. The collar carries a manually-releasable pivoted locking lever having an offset end that can be received in an opening of the outer member to lock the strut in adjusted position against release when the collar is in its locking position. When the collar is in the unlocking position, the offset portion of the lever is out of registration with the opening and instead bears against the exterior of the outer member. For such circumstance the members are relatively moveable between their extended and retracted positions. A keying means carried by the collar is engageable with cooperable means on the outer member to maintain the collar in a given aligning position.

Abstract: The invention relates to an extension joint for concrete piles of the type in which at least one pin in a first pile penetrates into a recess in a second pile. The end of the pin is provided with a shoulder and is locked in the second pile by means of a wedge having shanks each engaging one side of the pin. The wedge is locked in its driven-in position while being driven in by the bending of the shanks towards each other after they have passed the pin.

Abstract: A mechanical end joint system, useful for the transverse connection of strut elements to a common node, comprises a node joint half 15 with semicircular tongue 14 and groove 60 and a strut joint half 24 with semicircular tongue 25 and groove 21. The two joint halves are engaged transversely and the connection is made secure by the inherent physical property characteristics of locking latches 12 and 26 (FIGS. 1-6) or by a spring-actioned shaft 70 (FIG. 7). A quick release mechanism (FIG. 7) provides rapid disengagement of the joint halves.

Abstract: A repair part for a small ball joint is provided in the form of a sleeve open at least at one end and having a flattened section extending from that one end toward its middle. A slot extends lengthwise of the flattened section and is open at the one end of said sleeve to embrace the shank of the ball part of the joint. A retainer member extends inwardly from the wall of the sleeve at a location generally opposite the end of said slot, for engaging the socket part of the joint and holding the sleeve around the assembled joint.

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: A keeper assembly (10) includes an arcuate keeper member (46) having a pair of planar side surfaces (56,58) and a preselected U-shaped configuration in cross section adapted to be seated in a correspondingly profiled annular groove (64) in a first member (16) having a central axis (18). A second member (32) having a force transmitting surface (76) transverse to the axis (18) loads the keeper member (46) and the force is transferred into the first member (16). The keeper assembly (10) can be used in an endless chain joint (14).

Abstract: PCT No. PCT/US79/00187 Sec. 371 Date Mar. 23, 1979 Sec. 102(e) Date Mar. 23, 1979 PCT Field Mar. 23, 1979 PCT Pub. No. W080/02059 PCT Pub. Date Oct. 2, 1980A keeper assembly transmits force from a second member (32) for a forced transmitting surface force (68) to first member (16) having an annular groove (42). A plurality of keeper segments (40) are located in the groove (42) and transfer force from the forced transmitting surface (68) into the first member (16). Each keeper segment has an axially outwardly opening side seat (56) and retaining means (44) are releasably connected to the side seats (56) for holding the keeper segments (40) positively in the groove (42).

Abstract: In a coupling of members subject to rotational uncoupling forces, a lock key that unites the members and holds them from relative rotational movement with a fastener for the lock key to not only secure the lock key to one or the other members, but by its size insure proper locking with the lock key of the members.

Abstract: A chuck has a chuck body rotatable about a chuck axis and provided with a plurality of jaws which can be radially displaced toward one another by rotation of a tightening sleeve on the chuck body in a tightening direction and which can be displaced radially apart by rotation of the tightening sleeve in an opposite loosening direction. A latching pin is displaceable chordally in a blind bore of the chuck body and is urged radially outwardly. This latching pin is engageable between the teeth of an array of radially inwardly directed teeth formed on the tightening sleeve. The spring of the locking pin presses this pin chordally forwardly into engagement with the teeth with the edge defined between the side and end surfaces of the pin fitting between two adjacent teeth and the end surface flatly engaging one of the front flanks with the side surface engaging the back flank of the tooth immediately trailing this one back flank in the loosening direction.

Abstract: The loadlock and beam of the present invention are for use with a pallet rack structure in which the beam is connected to an upright of an end frame with the loadlock. The loadlock has a right angled-shaped bolt with a shank slidably extending through an aligned hole in the upright and in an end plate of the beam and has a headed handle portion extending through a contoured slot in the beam wall adjacent the end of the beam. The contoured slot defines three separate positions and cooperates with a generally cylindrical spring metal retainer positioned on the bolt handle having diametrically opposed projecting tabs engaging the innerface of the beam wall adjacent the slot and having projections engageable with the edges of the contoured slot to position the loadlock in any one of the three preselected positions.

Abstract: Locking means for racking of the type comprising metal uprights having sockets, e.g. pressed out of a web portion, and beams the ends of which are provided with hooks to engage in the sockets of the upright. The locking means comprises a magnet which is attached to the metal upright and positioned between a stop on the metal upright and an abutment surface on a beam to prevent upward movement of the beam and disengagement of the hooks.

Abstract: In a coupling of members subject to rotational uncoupling forces a lock key that unites the members and holds them from relative rotational movement with a fastener for the lock key to not only secure the lock key to one or the other members but insure proper locking with the lock key of the members.

Abstract: A coupling having male and female coupling members, at least one coupling lever pivotally mounted on the female coupling member and having a cam portion engageable in a groove in the male coupling member for releaseably coupling the male and female coupling members together, and at least one safety locking device for locking the coupling lever against accidental displacement from its coupling position. The safety locking device includes a reciprocally mounted locking pin or member, a spring for biasing the locking pin to a locking position where it overlies the coupling lever in its coupling position to block movement of the coupling lever to its uncoupling position, and a manually manipulatable lever member engaging the locking pin and pivotal to retract the locking pin to a lock-release position.

Abstract: A locking system for locking a nut on a threaded shaft comprises a transverse through aperture in the shaft alignable with through apertures in the nut, and a pin extending between the aligned through apertures to lock the nut against rotation relative to the shaft. According to the present invention displaceable wedge means are located in a recess of the shaft and engage the pin to lock the pin against axial displacement. These wedge means preferably comprise a plastics plug with a waisted through aperture, the pin including a complementary necked portion. The locking system can be advantageously used with the nut and bolt of a shackle.

Abstract: A one-way gate assembly for a railway trailer hitch includes a pair of movable jaws adapted to assume a first position engaging and holding in place the kingpin of a piggyback trailer. A stiff yoke spring biases a yoke into a first position engaging the jaws to maintain said jaws in the first position. A one-way gate located on the exit side of the jaws is pivotably mounted about a horizontal axis. In one position the gate extends vertically upwardly, blocking exit of a trailer kingpin. A gate spring biases the gate to pivot the gate outwardly and away from said jaws. A first stop engages the base of the gate maintaining the gate in the vertically extending position. The stop is movable longitudinally of said hitch away from the gate to allow the gate to pivot to open position.

Abstract: A coupler for removably coupling a tool attachment at an end of a supporting arm of a powered digging or material-moving machine. The coupler includes a latch which permits quick interchanging of tool attachments on the arm. One embodiment provides a means for remotely disengaging the latch so that a machine operator may interchange tool attachments without having to dismount the machine to manually assist interchanging of attachments.

Abstract: A key bolt including a shank having a bolt head at one end thereof and having an aperture extending transversely in the shank in spaced relation to the head, with a locking key bar disposed in the aperture and movable from a retracted position wherein it is disposed generally within the confines of the shank to an extended locking position, and vice versa, for holding the key bolt against accidental removal or displacement; a portion of the key is resilient for holding the latter in selected position lengthwise of the aperture, together with positive abutment means thereon for preventing inadvertent retraction of the key bar to retracted position.

Abstract: A device comprising a straight rod portion with a mounting pin extending from its one end and having a smaller diameter than the rod portion and vertical parallel flat walls on both side of mounting pin, a pivotable member fitting over the mounting pin, and an abutment provided at the forward end of the mounting pin for preventing the pivotable member from slipping off the pin. The pivotable member includes two side plates extending substantially over the entire length thereof with the pin positioned therebetween and a forward end portion loosely secured to the mounting rotatably and a little slidably. Spring is provided between pivotable member and mounting pin so as to bias the free end of the pivotable member away from the pin.

Abstract: A detachable coupling provided between the helix and drive shaft of an injection molding machine is provided by a flattened end of the helix shaft received within a fork-shaped end of the actuation shaft so that respective boreholes are aligned for receiving therethrough a pin. An axially slidable locking sleeve is movable between a position preventing movement of the pin and a position permitting removal of the pin, and a resiliently urged locking detent ball and groove are provided at each of the positions.

Abstract: A butt hook having a main body defining a laterally open cavity within which is received a choker line ferrule. A sleeve on the main body is positionable therealong to open and close the cavity for release and retention of the ferrule. A winchline receiving, removable shackle on the main body confines the sleeve against opening movement to assure ferrule and choker line retention. The shackle is of the type manually removable enabling choker line detachment and replacement without the aid of tools. A modified form of butt hook utilizes a sleeve of reduced length slidably mounted on the main body to open and close a ferrule receiving cavity. A key on the main body prevents axial movement of the sleeve until a keyway in the sleeve is rotated into alignment with the key to permit axial sleeve movement.

Abstract: A device comprising a straight rod portion with a mounting pin extending from its one end and having a smaller diameter than the rod portion, a pivotable member fitting over the mounting pin, and an abutment provided at the forward end of the mounting pin for preventing the pivotable member from slipping off the pin. The pivotable member includes two side plates extending substantially over the entire length thereof with the pin positioned therebetween and a forward end annular portion loosely fitting around the mounting pin.

Abstract: A vehicle gearchange lever comprising a rod with a longitudinal hollow accommodating a current conduction element electrically connected with a clutch and with a contact mounted on said rod. The gearchange lever also comprises a knob with a contact mounted therein, which knob is elastically mounted on the rod and is adapted to be moved relative to the rod for the purpose of closing the contacts in the process of gearchange. The contact mounted on the rod is constructed in the form of a cup installed on a sleeve made of an insulating material and removably mounted on the rod. The knob is hollow, has a hole for the rod to fit therethrough with a clearance, and bears on a shoulder provided on the rod. Said clearance is dimensioned so as to enable the contacts to be closed by moving the knob in the process of gearchange.

Abstract: A keeper assembly (10) includes a keeper (46) having central axis (18), a pair of end surfaces (48), a planar side surface (60) for receiving force from a first member (32), and a convex side surface (64) facing away from the planar side surface (60) for transferring the force obliquely into a second member (16). The keeper assembly (10) can be used in a track joint (14).

Abstract: A tandem master cylinder assembly for use in split-type hydraulic brake systems of an automotive vehicle, comprising a fluid reservoir, a cylinder body having a cylinder bore communicable with the fluid reservoir through two ports formed in the cylinder body, primary and secondary pistons axially slidable as a single unit in the cylinder bore, a floating piston axially movable within the secondary piston and forming, jointly with the primary and secondary pistons, primary and secondary pressure chambers which are variable in volume depending upon the axial positions of the primary and secondary pistons relative to the cylinder body and the axial position of the floating piston relative to the cylinder body and to the secondary piston, and means to limit the distance of travel of the floating piston relative to the cylinder body.

Abstract: The device comprises a pair of locating pins extending outwardly of an edge surface portion of one of the cabinets and adapted to be received in complementary through openings in the corresponding edge of the adjacent cabinet to be connected, the outer ends of the locating pins being conically rounded to provide for horizontal and vertical alignment by cam action. An elongated, lever controlled interlock member serves to interclampingly engage turned down skirt portions of the thus aligned cabinet edges to retain the cabinets in interlocked relation.

Abstract: In connection means comprising a hook projecting from one structure member and shaped for engagement with an elongated hole having a portion of downwardly tapered shape in another structure member, the hook is complemented by a boss which projects from the same face of the said one member, but spaced from the hook in the vertical direction, and which engages in a said hole in the other member. In a preferred embodiment, the boss is of a shape, for example a truncated pyramid with a trapezium base, engageable by its sides with the sides of the same hole with which the hook is engaged. The hook and boss are integral with the said one member, the boss being disposed closely above the hook from which it is separated by a transverse web. The sides of the boss are undercut. A spring-loaded locking device may be provided in conjunction with the boss.

Abstract: An end connector for joining with a similar connector to connect two fence sections of a floating oil boom having a central channel and wing so that the wing of one connector is received within the channel of another connector and shoulders to allow for longitudinal movement only, a lock pin movable within a first slot into and out of the channel, a second slot in the wing within the channel to receive the lock pin whereby longitudinal motion of the two connectors is prevented and means for maintaining the lock pin in the second slot in the locked condition including a latch plate with abutting camming surfaces.

Abstract: A speedometer drive assembly for use with an automotive transmission includes an adapter housing for securing the assembly to a transmission housing, a rotatable take-off gear received in the adapter housing and engageable with a geared output shaft of the transmission, a cable drive assembly operatively connectable to a speedometer and received in the take-off gear to a position drivingly engaging the take-off gear, and fastener means operative to retain the take-off gear in the adapter housing in a position wherein meshing engagement with the transmission output shaft is effected and to lockingly retain the cable drive assembly in the adapter housing.

Abstract: A scraper-chain conveyor is composed of a series of channel sections arranged end-to-end with shaped components on one side defining a guide for a machine such as a plough. Each component has a tubular track or rail at its upper end and these rails are spaced apart to receive coupling devices. Each device has a cylindrical body matching the rail profile and located between adjacent rails. Spigots engage with clearance in these rails; one spigot being integral with the body and the other spigot being slidable within the body so as to retract or extend therefrom. A recess in the body receives a block which is detachably secured to the body to prevent the slidable spigot from retracting.

Abstract: A retention and release mechanism utilizes a collet with deflectable fingers to allow assembly of the mechanism onto an object which is to be retained. Movement of the object toward the mechanism causes a force to be exerted on the bottom end of a plunger and movement of the plunger, which is coupled to a lockpin by a plurality of spherical balls and a split ring, from a released to a retained position. In the retained position, the balls secure the lockpin in a fixed position relative to the collet while mating tapered surfaces at the ends of the collet fingers and the lockpin cooperate to retain the object to which an expendable bushing has been attached, the bushing being part of the mechanism. To release the object, a force must be exerted on the top end of the plunger to move it to an axial position wherein the balls are released from their fixed position relative to the collet and the mating tapered surfaces move away from each other.

Abstract: A system for securing vehicles to a rail car for transport thereby, with the system including a bi-directional tie-down assembly and a ratchet assembly, or the like, separate therefrom and with the bi-directional tie-down assembly having a double chain in a triangulated configuration for restraining the associated vehicle at the point of engagement. A pivotable hook assembly is provided which allows the selection of one or more hook configurations.

Abstract: A container lock assembly for securing varying types and quantities of containers onto a platform trailer has a body member including a base portion arrangeable engaging a rail provided on the trailer, and a stem portion extending away from the base portion. Removably attachable to the stem portion of the body member for retaining in place against the rail a container supported on the trailer is a lock pin which is also used to disengage the body member from the rail.

Abstract: A pin for holding a rotary tiller tine hub in place on a shaft is, in turn, held in place by a wire clip having a straight intermediate section extending parallel to the shaft and received in a transverse hole extending through the pin adjacent an end thereof, the intermediate section extending perpendicular to and joining a straight end section and an arcuate section which embraces and extends about the hub.

Abstract: An illustrative embodiment of the invention provides a control rod system locking device adapted to engage an elongated extension shaft, releasably coupled at one end to the control rod assembly and releasably coupled at its other end to the control rod drive, to prevent rotation of the shaft about its longitudinal axis with respect to the control rod assembly.

Abstract: A joint for connecting together adjacent ends of individual elongate pans of an armoured scraper chain conveyor, has the adjacent conveyor pan ends provided on the outsides of their sidewalls with interengaging male and female formations, each formation being provided with one or more abutment surfaces forming part of a laterally open pocket connected to a laterally open channel, the pocket and channel of adjacent pan ends receiving a common, laterally inserted connector having a shank portion located within respective channels and at each end of the shank portion an enlarged head located within respective pockets so as to be engageable with an abutment surface of a respective pocket, and an aperture provided in the shank portion to receive a locating pin restrained from lateral displacement by engagement with a projection of one or other of the formations.

Abstract: A tubular body in which is inserted an operating and locking member formed by a resilient metal wire having a pull ring and two legs extending therefrom. The legs end each with a lock catch extending towards the outside which is radially movable alternatively to hook over the end of the body or be retracted inwardly for removal.

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.