Abstract: A wheel lock assembly for reversibly rotatably mounting a wheel assembly which comprises an inner race and an outer race and bearings disposed therebetween on a trolley which includes a central bore having a central axis and having a substantially annular recess eccentric relative to the central bore. The wheel lock assembly includes an axle member, the axle member including a cylindrical body portion having a longitudinal axis and an enlarged substantially annular head portion eccentric relative to the longitudinal axis. The wheel lock assembly further includes a cap member and locking screw for fastening the cap member to an end of the body portion of the axle member to draw the cap member into frictional engagement with the inner face and to draw the head portion of the axle member into mating engagement with the recess of the trolley arm.

Abstract: A connector for cross-sectionally square, rectangular, hexagonal or other shaped tubes, including a solid cube-shaped block body having tapered arm members extending outwardly from its square sides; each arm having a spiral pipe screw thread therearound intercepted by elongated flutes so that the arm is cross-sectionally Greek cross-shaped with outwardly rib portions between the flutes, so as to be slidably fitted into a square or rectangular tube end or into the end of a hexagonal or other shaped tube with a square insert with the ribs being received in the corners of the square or rectangular tube or of the square insert whereby subsequent rotation of the tube causes the screw thread on the outer side of the ribs to cut an engaging thread on an inner side of the tube, or on the inner side of the square insert.

Abstract: Apparatus for supporting a housing from a support including a bracket member formed of at least two opposed walls and having a post member extending between the walls, one of the walls capable of being positioned on the housing; and a hook member having one end rotatably secured about the post member for selective rotational movement from a first storage position to a second hanging position, the other end of the hook member being configured for engagement with the support, the one end of the hook member and the bracket being configured and dimensioned so that the hook member remains locked in the hanging position.

Abstract: This is an improved electrode for consumable vacuum arc melting of zirconium and titanium alloys, for alloys containing a low melting point alloying material or for very low oxygen zirconium. Electrodes of this type use a low resistance spar extending substantiallly the length of the electrode, with this spar being substantially free of any unalloyed low melting point material. The improvement utilizes attachment by wedging of the external members to the spar core. Preferably the wedging is accomplished by rotation of the external member with respect to the spar core.

Abstract: A mechanism for removably joining elongate frame members comprised essentially of a series of geometrical apertures in some frame members which are adapted to receive specially designed, geometry-conforming detents or keys which have been affixed to, or constructed integrally with, adjoinable frame members. Major connecting action is effected by insertion of one member, a strut which has special cylindrical projections at its ends, into another member, a spar which has a special keyway for receiving said projections, and rotating said strut into a position which, because of the unique geometry of said projections and internal surfaces of said spar, result in capture of the projections, thus immobilizing said strut.Two adjunct locking mechanisms are suggested for rigidifying connections of the preferred embodiment. The first such locking mechanism employs detent means, the second, lever and snubbing action.

Abstract: A mounting clamp particularly suited for mounting medical accessories on support poles comprises a stationary clamping surface which can be attached to an accessory housing. A cam is pivotly mounted on a trunnion connected to the stationary clamping surface has a spiral clamping surface, the stationary clamping surface and spiral clamping surface being positioned to constitute a clamping means when the clamp is in a clamping position. A spring means having one end connected to the trunnion and the other end connected to the cam is provided for biasing the cam to the clamping position. A lever pivotly mounted on the trunnion has a projection which engages the cam and causing it to pivot with the lever when the lever is pivoted to a clamp releasing position. The cam preferably has two spiral surfaces, one generated by a line parallel to the axis of rotation of the cam and the second cam surface by a line forming an angle with the axis of rotation of the cam.

Abstract: A tube-squaring tool and a clamping mechanism for clamping a workpiece by only a partial revolution of a cam ring to provide quick and easy clamping and unclamping of a workpiece with respect to the body of the tube-squaring tool to which the clamping mechanism is connected. The tube-squaring tool body mounts a motor centrally thereof to facilitate handling of the tube-squaring tool and the cutting action is performed by advancing a tool shaft relative to the body by operation of a handle pivotally mounted adjacent an end of the body of the tube-squaring tool.The clamping mechanism has a cam ring movable between a first position to permit endwise insertion and removal of a tubular member and a second position to bind the tubular member in associated structure. A spring provides a certain amount of tolerance and yieldability to the clamping force applied by the cam ring.

Abstract: A tool such as a cleaning tool has an extensible handle comprising two or more telescoping tubes of elliptical or other noncircular cross-section which, when their axes are aligned, may be freely telescoped relative to one another until a desired extension is reached, and may then be rotated out of alignment to bind the tubes together.

Abstract: A yarn package holder device (10) is disclosed which includes a bracket plate (12) adapted to be mounted to a supporting structure (14). A circular cam (A) is rotatably journaled in the bracket plate and is eccentrically connected to a shaft (24) having a remote end affixed to an actuator lever (30) and handle (32). The actuator lever rotates the cam (A) and moves a cam surface (22) in an eccentric path. On the eccentric path, the cam surface (22) includes a lock position with the actuator lever (30) in a down set position. Lifting the actuator lever from the down set position quickly releases the cam lock provided between the cam surface (22) and a ribbed clamping surface (34) permitting rapid removal of an empty tube (38) from which a yarn package (40) has been withdrawn.

Abstract: The invention provides an adaptor which comprises a hexagonal tail portion adapted to engage in a drilling machine, and a leading portion which is adapted to receive a circular drill rod in locking relationship. Sealing means is provided between the drilling machine and the adaptor and the latter and the drill rod.

Abstract: A tool handle for a file used for sharpening of saw chains consists of two interconnected tubular parts, rotatably connected in relation to each other, and each having an outer shell member surrounding a central tube having its axis offset in relation to the rotary axis. By relative rotary movement of the tubular parts, the tubes lock an inserted file by eccentric action. The tool handle is further provided with apertures forming a whistle and with angled filing guides.

Abstract: A pipe coupling, suitable for manufacture entirely of plastics material, for any diameter of pipe and internal pressure, has a gripping ring housed in a socket with projections extending through apertures in the socket and terminating in camming portions, which cooperate with camming portions inside a sleeve rotatable on the socket to cause the gripping ring to be urged inwards into gripping contact with a pipe inserted into the socket, which also houses a sealing ring for effecting sealing between the inserted pipe and the socket.

Abstract: Disclosed is a locking mechanism for an indexing spindle. A conventional r gear having outwardly extending teeth is affixed to the spindle. Also included is a rotatably mounted camshaft whose axis is arranged in skewed relationship with the axis of the spindle. A disk-like wedge having opposing camming surfaces is eccentrically mounted on the camshaft. As the camshaft is rotated, the camming surfaces of the disc-like member are interposed between adjacent gear teeth with a wiping action that wedges the disc-like member between the gear teeth. A zero backlash engagement between disc-like member and gear results, with the engagement having a high mechanical advantage so as to effectively lock the spindle against bidirectional rotation.

Abstract: An adjustable lock arrangement for rods, tubes, and the like, comprising a rigid collar having a central opening in which a rod segment is closely received. The interior surface of the collar includes a keyway in which an eccentric key is rotatably mounted. The key includes a first surface, which when rotated toward the rod, permits the collar and rod to slide telescopingly with respect to each other, and a second, outwardly protruding surface, which is rotated into abutting engagement with the rod to frictionally lock the collar and rod in place. The collar may be formed as a separate unit for use as a couple, an adjustor, et cetera, or integrally constructed with the end of a tube for interlocking telescoping segments of a support, or the like.

Abstract: There is described a device for mounting and removing a cutter at the end of the cutter shaft from a hydraulic or suction dredge, whereby the cutter boss is provided with an inner screw-thread and the cutter shaft with an outer screw-thread. The device is comprised of two concentric rings those surfaces of which facing one another are provided with teeth fitting into one another, whereby the slanting of said teeth is opposite to the angle of said screw-threads, and means are provided to lock both rings during the screwing of the cutter on the shaft thereof, in such a position relative to one another where said rings have so rotated relative to one another that the joint thickness thereof is increased as compared with the joint thickness of the toothed rings when the teeth have completely rotated into one another.

Abstract: A quick release, high torque coupling for interconnecting the bit and drive member in a mine roof drill has axial-locking and torque-transmitting structure integral with the drill members. A plug on the drive member is adapted to be releasably received within a mating socket in the bit and has an axial-locking segment on its outermost end complementally configured with respect to an acircular constriction in the socket to permit insertion of the axial-locking segment into the socket beyond the constriction. A torque transmitting segment on the plug cooperates with the constriction to limit relative rotation of the bit and drive member between oppositely directed torque-transmitting positions. In one of the torque-transmitting positions, the constriction and axial-locking segment are misaligned such that the plug is restrained against axial retraction from the socket.

Abstract: Two-piece rotary valve linkage loosely slidable arranged on a square shaft configuration and capable of tilting towards each other over a pre-arranged angular distance for the purpose of solidly engaging said square shaft and thereby being capable of transmitting significant tortional loads to said shaft without lost motion or displacement in the direction of the shaft axis.

Abstract: An expansion element comprises a plurality of identical hook or spiral shaped members which are interleaved such that when one of the members is caused to move radially outward it cooperates with adjacent members to move them outward also. The outward movement may be initiated by a centrally located plug which may either rotate or move axially.

Abstract: A brush including a molded head that includes the bristles and a handle holder. The handle is made in two pieces one of which slips into the other for securing the handle in a retracted or an extended position. A collar in combination with the handle secures the handle in its retracted or extended position.

Abstract: A sheet-feed tractor includes clamp means made of two members through which a passage is provided defined partly by both members. One member is pivotably mounted on the other in such a manner that the size of the passage is reduced by pivoting of the pivotable member. Reduction of the size of the passage can clamp a support shaft received in the passage, and the clamping force tends to enhance the static friction between the members so as to keep the clamping means in clamping position.

Abstract: A plug including an axial shaft, a mating end of which is spring coupled to a mating portion of a sealing plug. The other end of the shaft includes an externally threaded portion and a flanged portion. The sealing plug also includes an externally threaded portion and a flanged portion. The spring normally mates the shaft and sealing plug together so that the members are rotationally engaged. When the spring is suitably compressed, the mating relationship is removed so that the members are rotationally disengaged. The plug is particularly useful in conveniently sealing double wall combustors such as those in gas turbine engines.

Abstract: A vehicle type thermostat having a housing provided with a valve seat that is controlled by a movable valve member is interconnected to a temperature responsive device carried by the housing, the housing having interference fit positioning abutments thereon for rotationally orienting the housing in a vehicle engine cooling system whereby the structure of the thermostat can be disposed in a desired rotational position within the engine cooling system. The housing includes a relatively short annular skirt disposed intermediate the opposed ends of the housing and having the positioning abutments thereon. The housing includes a spring retainer having an annular spring seat portion defining one of the opposed ends of the housing and having a pair of strap portions respectively extending from the spring seat portion to adjacent the annular skirt. A retaining member for positioning the thermostat in an outlet housing of an engine cooling system is secured to the strap portions.

Abstract: A vehicle-type thermostat having a housing provided with a valve seat that is controlled by a movable valve member which is interconnected to a temperature responsive device which is carried by the housing, the housing having interference fit positioning abutments thereon for rotationally orienting the housing in a vehicle engine cooling system whereby the structure of the thermostat can be disposed in a desired rotational position within the engine cooling system.

Abstract: A quick connector is provided for attaching the handle portion of a billiard cue to the shaft portion thereof. The connector includes fittings carried by the ends of the handle and shaft portions. The fitting on the end of the handle portion comprises a cylindrical body having an eccentric shoulder and an elongated central stud on the outer end thereof. The fitting on the end of the shaft portion comprises a cylindrical body having an elongated central bore and an eccentric counterbore on the outer end thereof. The end of the handle portion is initially loosely joined with the end of the shaft portion by inserting the elongated central stud into the elongated central bore and the eccentric shoulder into the eccentric counterbore. Then by twisting the portions relative to each other for a fraction of a turn, the eccentric shoulder cams against the eccentric counterbore thereby causing the central stud to frictionally engage the wall of the central bore.

Abstract: A clamping collar is provided to be mounted about a shaft, arbor or the like, which may be secured at any position along the longitudinal axis of the shaft and preferably adjacent to the load on the shaft. The device comprises a pair of interfaced rings concentric about the shaft and arcuately shiftable one with respect to the other to shift locking lugs radially into and out of clamping engagement with the shaft. The device also includes means to make lateral pressure contact with arbor spacing sleeves, washers, spacers or flanges assembled on the shaft to space tool means, or the like, therebetween.

Abstract: Attachment holes are formed in a first piece of furniture, and a dowel hole is formed in a second piece of furniture. A hinge unit includes a hinge arm having attached thereto a mounting plate, a cup-shaped dowel dimensioned to fit within the dowel hole, and a pair of toggle joints connecting the hinge arm and the cup-shaped dowel to form a quadrangular hinge linkage, with the mounting plate having extending therefrom rods dimensioned to fit in the attachment holes. First pins having first hook members are permanently mounted within and rotatably extended through the mounting plate at positions eccentric to the longitudinal axes of the rods. Second pins having second hook members are permanently mounted within and rotatably extended through the cup-shaped dowel at positions adjacent the edge thereof. The hinge unit is positioned in the closed position thereof, and the rods of the mounting plate are inserted into the attachment holes of the first piece of furniture.

Abstract: A support for a headrest characterized by an articulable arm having a locking system operable single-handedly for locking the arm at selected positions of adjustment and releasing for readjustment.

Abstract: The invention comprises an externally mounted locking mechanism for telescoping tubes that permits releasable adjustment of the tubes to any telescoping position relative to each other and utilizes multiple cam action locking means operating both longitudinally and circumferentially relative to the tubes. Two preferred embodiments are disclosed, a two-piece structure and a three-piece structure, both of which are preferably molded from a plastic material.

Abstract: An inner ring of an anti-friction bearing has a central bore with a groove that extends radially outward and circumferentially about an axially intermediate portion of the bore. At the radially outermost portion of the groove is a bottom that is eccentric to the bore. A shaft is received within the bore and maintained centric with the ring. A longitudinally split locking sleeve having an eccentric external contour fits within the groove when the eccentric central axes of the groove bottom and the external sleeve contour are radially aligned with each other from the central axis of the bore. The sleeve has an unstressed bore diameter that is less than the shaft diameter to inherently grip the shaft when inserted therein. Relative rotation between the sleeve and the ring wedges the sleeve and inner ring into a locked position on the shaft.

Abstract: A positive cam lock for a pair of telescoping extension poles. The cam support is mounted to the inner pole and carries a coaxially rotatably mounted idler cam and an eccentrically rotatably mounted locking cam. The outer pole has a number of inwardly extending splines which engage corresponding grooves on the locking and idler cams. When the outer pole is rotated, the eccentric cam will rotate and lock the outer pole at a desired axial position with respect to the inner pole while the idler cam prevents misalignment. A key mounted to the locking cam rides in a keyway on the cam support for preventing over-rotation of the locking cam.

Abstract: The disclosure relates to a mechanism for releasably locking a nose tip to a vehicle utilizing a pawl and ratchet and pinion arrangement.

Abstract: A folding invalid walker includes an improved mechanism for rigidly locking the walker in its unfolded state. The mechanism comprises a pair of tubular telescoping members each having an inner portion which telescopes into an outer portion. A spring loaded button is used to lock the tubular telescoping member in its extended state. One end of each of the tubular telescoping members is riveted to the rear leg of the walker support and the other end is pivotally connected to a transversely disposed bar connecting both front legs of said walker. The rivet connection is slightly flexible so that the tubular telescoping member can flex a small amount with respect to the rear leg of said support as the walker is folded from its folded to its unfolded state and vice versa. The location of the pivot joint on the rear leg is such that a rivet can be used and a more expensive and less rigid pivot connection can be avoided.

Abstract: A scaffolding connection between the ends of a plurality of horizontal members and an upright member, in which the end of each horizontal member is provided with oppositely directed tongues projecting laterally therefrom, and the upright member has thereon opposed retaining elements adapted to receive said tongues, one retaining element being fixed to the upright member and the other retaining element being movable along the upright member with respect to said fixed element, the arrangement being such that after separation of the retaining elements, one projecting tongue on each horizontal member can be engaged in the fixed retaining element and the oppositely directed projecting tongues engaged in and by the movable retaining element, thereby locating the ends of the horizontal members in relation to the upright member, the latter also having thereon means for engaging the movable retaining element to clamp it against movement away from the fixed retaining element after the said projecting tongues have been

Abstract: A lock assembly for connecting two members such as two tubes, rods, lines, wiring, or cue stick sections, comprising a pair of complementary lock members, one male and one female, the male member having a cylindrical member coaxial or concentric with respect to the lock member adapted to rotate in a complementary chamber in the female member concentric or coaxial with respect to the female member, and a curvilinear such as cylindrical member eccentric with respect to the male member adapted to rotate in a chamber in said female member being eccentric with respect to the female member, the eccentric chamber of the female member being of larger diameter than that of the eccentric curvilinear member of the male lock member, and being adapted to engage the surface of the eccentric curvilinear portion of the male member upon relative rotation therebetween, whereby when the male and female members are rotated in either direction with respect to each other, the members are locked together.

Abstract: The invention contemplates selectively securing a bearing ring or the like to a cylindrical shaft, using a collar rotatably carried on a slotted end of the bearing ring. The collar bore and the collar-overlapped part of the slotted end have substantially conforming contours; in the case of the ring contour, a minimum radial extent characterizes the angular region of any slot, and a maximum radial extent characterizes an angularly offset location which, for the case of a two-slot ring, involves maximum radial extent angularly intermediate the slots. Various forms are described.