Abstract: A quick change coupling is provided which is suitable for coupling shafts or tubular members to one another and for coupling a machine tool arbor to a shaft. The apparatus includes a shaft provided with a bayonet receptacle defining one or more bayonet slots. Another elongated member is receivable by the bayonet receptacle and includes one or more detents which are received in locked relation by the bayonet slots. A protective skirt extends from one of the elongated members and encloses a portion of the opposite member. One or more elastomeric members are positioned for engagement with the protective skirt and an elongated member and functions to dampen vibrations therebetween. The elastomeric member may be in the form of a seal to prevent dust and other contaminants from entering the bayonet joint between the elongated elements.

Abstract: An impact drive sprinkler is provided from a relatively small number of easily assembled components which can be formed predominantly from lightweight molded plastic or the like. The sprinkler includes a unitary sprinkler body having a lower riser tube rotatably supported within a one-piece bearing sleeve adapted for connection to a water supply riser or the like, wherein the lower riser tube is joined to an upper range tube through which an irrigation water stream is projected. An oscillatory impact drive arm and a spring are snap-fit mounted with a controlled spring preload onto the sprinkler body for spring-loaded rotation of the drive arm toward a position with a deflector spoon unit thereon interrupting the projected water stream.

Abstract: A small, strong swivel coupling includes a spindle connectable to a pulling device, the spindle having a reduced diameter, axially extending central core which is threaded to receive a thrust nut and a lock nut. At the other end of the coupling, an end cap is connected to an axially extending sleeve which has an inwardly protruding flange. The flange and thrust nut form oppositely facing surfaces which are separated from each other by a low-friction washer preferably made of polytetrafluoroethylene. The coupling can withstand large axial forces and still rotate to relieve torques which might damage a cable being pulled.

Abstract: An environmental impervious swivel which provides a low friction bearing surface while retarding the ingress of any environmental contaminants. One bearing surface is formed typically polytetrafluoroethylene (PTFE). The connecting members may be eyes, threaded shafts or any other fastener type desired. The swivel is constructed of two major components, namely a cylinder connected by a shank to a connecting member, and a piston connected by another shank to another connecting member. The swivel is assembled by placing a (PTFE) split bushing over the piston shank, inserting the piston into the cylinder and rolling over the open end of the cylinder.

Abstract: A swivel for connecting a cable to a lever of a parking brake release mechanism is made as a unitary sheet metal stamping having a flat body portion, an end flange projecting laterally from one end of the body portion and parallel side flanges projecting laterally from the side edges of the body portion with the side flanges merging with the side edges of the end flange. The end flange is perpendicular to the body portion and each side flange is perpendicular both to the body portion and to the end flange. The opposite end of the body portion is pivotally connected to the lever and an enlarged head on the end of the cable is inserted through a window in the body portion and then the cable is moved through a slot in the body portion to a connecting slot in the end flange so that the head on the cable bears against the end flange.

Abstract: The connector comprises a base of acetalic resin and a metal pivot pin connected together for mutual rotation under the braking effect of a frictional couple; the pivot pin being force fitted into a corresponding seat in the base and the ratio of the coupling axial extension to the pin diameter being no less than 4:1.

Abstract: A lockable telescopic joint is provided wherein two telescopic members may be fixed against telescoping action by tightening a glade nut, and yet after tightening there remains a substantial degree of rotational freedom so that one telescoping member may be rotated relative to the other by hand, and yet the members will not telescopically collapse short of applying considerably more compressive force than need be exerted to rotate the members.

Abstract: A universal joint for connecting ropes for use in fishing. Two U-rods connect two ropes together. The two U-rods are supported by a spindle so as to be rotatable relative to each other. At least one of the two U-rods is supported oscillatably by the spindle via a pin mounted detachably in a direction usually perpendicular to the axis of rotation of the spindle. When the connected two adjacent ropes are about to be twisted relative to each other, the two U-rods make relative rotation, absorbing possible twists. When the connected rope is bent, the U-rod swings to prevent the occurrence of excessive stress ascribable to the bend. The spindle or pin is provided with a retaining means for preventing the pin from slipping off.

Abstract: An improved mechanism for connecting and disconnecting crane sections having a split locking ring positionable when contracted within a groove in one crane section and expandable into a groove in one crane section and expandable into a groove in the other crane section, with a double-acting ram connected at the free ends of the locking ring to control contraction and expansion thereof. A single acting ram is connected to provide a radial force at the heel of the locking ring when the latter is expanded.

Abstract: There is disclosed a new and improved swivel connector assembly for connecting a member to be pivoted to a pivot. The assembly includes just two components which may be readily assembled, a socketed assembly and a retaining sleeve. The socketed assembly has a forward portion including a socket forming a bearing seat and a rearward portion having a cylindrically shaped socket. A slot which extends from a point forward of the bearing seat center to and through the rearward portion to form bifurcated opposed socketed portions which may be separated to enlarge the bearing seat and cylindrically shaped socket to permit ready assembly of the same to a pivot ball and a member to be pivoted. The sleeve is arranged to be axially slid over the socketed rearward portion to thereby maintain the assembly in assembled relation.

Abstract: Disclosed is a connector for detachably and rotatably connecting one article to another article, which comprises an insert member to be attached to said one article and a receiving member having a space for insertion of said insert member, which is to be attached to said another member, wherein said insert member has an engaging annular peripheral portion having a void or hollow at the center thereof, a pair of spherical projections capable of elastic and reversional deformation are arranged in the insertion space of the receiving member to confront each other, and such a dimensional relation is established between the engaging annular peripheral portion and the spherical projections that the distance between apexes of the spherical projections is smaller than the thickness of the engaging annular peripheral portion and when said insert member is inserted into the receiving member, the engaging annular peripheral portion is rotatably gripped and supported by the peripheral parts of the paired spherical projec

Abstract: A motion transmitting remote control assembly of the type for transmitting motion along a curved path by a flexible motion transmitting core element supported within a conduit. The motion transmitting assembly includes a flexible conduit extending from and attached within an end fitting and a swivel member pivotally attached to the end fitting at a swivel joint. A flexible motion transmitting core element is supported within the assembly. A sleeve surrounds the core element and extends from within the end fitting, through the swivel joint and into the swivel member for reducing friction of linear movement of the core element within the assembly and for providing a seal throughout the swivel joint. The swivel member includes a wiper cap for preventing foreign matter on the extended length of the core element from entering the assembly.

Abstract: A ball bearing swivel comprises a substantially bowl-shaped casing member having first connection means in its closed end, and a stud member having second connection means in that one of its ends which faces away from the casing member. The stud member is journalled in the bowl-shaped housing member by means of a ball or roller bearing. For eliminating the risk of accidents through one of the wires or the like to which the swivel is connected, if the other wire or the like which is connected to the swivel should get into contact with an electrical overhead line or another possibly high-tensioned object, the ball bearing swivel also comprises an electrically insulating insert by means of which the bowl-shaped casing member of the ball bearing swivel is electrically insulated from the stud member.

Abstract: A side opening rope swivel socket assembly for connecting various tools to a drilling cable in wells allows an operator to quickly and conveniently change from one tool to another, for example, from a swabbing tool for tubing to a swabbing tool for casing, without the necessity for cutting and resetting the sand line or cable for each such operation. To avoid interfering with fishing tool operations and to avoid damaging the locking nut of the socket assembly at these times, the locking nut is placed well below the wickers of the swivel or mandrel and is enlarged in diameter sufficiently to pass over the swivel when it is desired to use the swivel alone. A great savings of time is effected in change-over operations in comparison to the prior art.

Abstract: A wire bonding machine for wedge bonding fine wires to semiconductor devices is provided with a rotating bonding head which is mounted on a fixed machine frame and having a X-Y table mounted on the fixed machine frame opposite a vertically movable bonding tool mounted on the rotating bonding head. The bonding head is provided with means for articulating the bonding tool in a vertical direction and in a rotational direction. The rotational movement of the novel bonding head does not impart vertical movement to the bonding tool.

Abstract: A boomerang comprising a pair of elongate, airfoils coupled together at their midsections to form a cross. Mechanism is provided for releasably coupling the midportions of the airfoils for separation under a predetermined force to normally prevent relative rotation of the airfoils.

Abstract: A reel launcher having a saddle operationally deployable beneath an aircr for carrying and towing an aerial tow target. The tow target is connected to the tow cable by an adapter which includes a notch for registration with a latch in the launcher. The adapter includes a nose section and one of a plurality of end fittings specially formed to engage a corresponding connection in different tow targets. The length of the adapter is adjustable by a threaded connection between the nose section and the end fitting which may be locked with the notch in proper alignment by a slot, key and notch arrangement between the two ends. Thus, a single nose section operable with a launcher may be used with different end fittings and tow targets with no other modifications.

Abstract: A swivel joint for a leg prosthesis has its relatively rotatable members urged into a neutral position by a multiple-disk compound axial compression spring bearing upon balls which ride along inclined ramps upon relative rotation of the members.

Abstract: A winch mounted to an automobile bumper and having a cable winding drum supported between a main drive housing and an oppositely positioned idler housing. The drive housing connects to the bumper braket by means of a pair of convexly curved mounting lugs which permit limited angular movement of the drive housing with respect to the bumper. The idler housing has a flat mounting surface which fits flush against the bumper bracket surface to prevent such angular movement. Upon distortion or misalignment of the bumper braket, the drum is able to shift angularly with respect to the idler housing, while the other end of the drum maintains a fixed angular relationship with its bearing means in the main drive housing, which is in turn able to shift angularly with respect to the bumper bracket.

Abstract: This invention relates to an anchoring device to be contained within and cemented into a cavity formed in a surfboard, this device comprising a housing having a recessed and an axially rotatable post, the post having an exposed end which is adapted for the attachment of an anchoring cord. Preferably, rolling element bearings are provided in order to ensure free rotation of the post.

Abstract: An improved wear-indicating pivot joint includes a bearing assembly which supports a stud for both axial and rotational movement. The bearing assembly prevents sidewise tilting movement of the stud during axial and rotational movement of the stud about its own central axis. A wear take-up arrangement is provided to compensate for normal wear between a bearing surface and the stud. The wear take-up arrangement includes a spring which applies a force to a bearing member to continuously urge the bearing surface into engagement with the stud to hold the stud against sidewise tilting movement. However, upon the occurrence of excessive wear between the bearing surface and the stud, the bearing surface is ineffective to hold the stud against sidewise tilting movement to thereby signal the occurrence of excessive wear.

Abstract: A swivel having a socket, an eye element formed in a bifurcated manner and in retention of a terminal tool such as a hook element, and the socket forged with a clearance closure in retention of the eye element whereby the eye is free to turn and limitedly pivot but is restrained from removal from the socket. The socket is formed as a part of a chain binder or the like and is useable on either of or both the clevis and bar ends of such binders.

Abstract: A reusable device is presented for effecting a mechanical connection between two elements that are substantially coaxial, the elements subject to traction stresses with reference to each other, and the elements disconnectable beyond a specific traction threshold. The device includes a casing, with a first half and a second half, integrally connected to one of the elements, the casing having a cavity formed between said halves, and said casing comprising elastic material. The other element includes a bulge comprising, for example, a spherical swivel joint that is received in the cavity, the portion of said halves adjacent said cavity separable as the bulge passes into the cavity.

Abstract: Apparatus which is mounted on a stud to prevent stud supported articles from inadvertently slipping off of the studs as well as to resist theft of such articles. The apparatus includes a two-piece body which is selectively connected together and such body defines an enlarged interior opening for receiving a portion of the stud and an opening of reduced diameter encompassing another portion of the stud.

Abstract: A vehicle having a swivel caster wheel. The caster wheel has two spaced magnets attached to a fixed part of the caster and a third magnet attached to the caster fork so that the third magnet is influenced by the field of the first and second magnets, moving the caster to a predetermined position when the wheels are lifted from the floor. The wheels caster to proper position when they again engage the floor.

Abstract: Structure for mounting a bulldozer assembly to a vehicle, such as a tractor. The mounting structure includes lift jacks connected to a radiator guard extending about the vehicle engine coolant radiator. The mounting structure includes a portion connected to the lift jacks and a portion received in a socket provided in a corner portion of the radiator guard. The mounting structure includes structure for removably securing the same to the radiator guard.

Abstract: A nunchaku-type material arts self-defense weaponry having swivel bearings connecting opposite ends of a link chain to a pair of handles. The swivel connections allow continuous twisting or spinning of the handles relative to each other during use of the device without twisting or kinking the link chain.

Abstract: This invention relates to an improved pivotal coupling in which the rotational connection between the two coupling parts is defined by a cylindrical portion on one coupling part having a plurality of axially spaced circumferential grooves formed on the outer wall thereof and engaged by a plurality of complementary ridges formed on the inner wall of a bore formed in the other coupling part to contain the two parts against relative axial movement without restricting rotational movement therebetween.

Abstract: A sleeve is trapped in a counter bore of a bushing, the sleeve being adapted to provide a bearing surface for a rotating shaft.

Abstract: A U-shaped holder includes free ends which may be adjustably drawn together by an adjustment bolt such that a bushing positioned in a cavity formed in the free ends is adjustably clamped. A magnetized dowel pin is eccentrically positioned in the bushing. A locater pin may be positioned in the lower end of the cavity and be urged downwardly by a spring between the dowel pin and the locater pin. The bushing is of non-ferrous material to shield the locater pin from the magnetic dowel pin.