Abstract: A sucker rod assembly useful in oil wells and the like is provided. In making the assembly, a longitudinally extending generally central cavity in a sucker rod end casing is coated with a mold release agent and the cavity interior surface includes longitudinally spaced inwardly directed annular wedges disposed transversely of the casing to provide a wave-like form. A plurality of separate rigid inserts are inserted longitudinally into the cavity and extend substantially the length of the plurality of wedges, collectively mating with the interior surface of the casing, and defining a central longitudinal space. An adhesive such as epoxy resin is poured into the central space and then a sucker rod end is inserted in that space.

Abstract: A safety barrier of the type for a hall or doorway to prevent passage of children, animals or the like. The barrier is expandable to completely block the passageway, and is provided with a pivoting gate in a portion thereof which may be opened as required to permit passage through the barrier.

Abstract: A concrete serpentine noise barrier formed by a series of vertically disposed concrete panels that are placed in end to end abutment. Each adjacent pair of panels is provided with a socket-like joint that allows the panels to be angularly adjusted in assembly.

Abstract: A stay can be used to support a cab of a tilt cab vehicle selectively in a first raised position in which the cab has been pivoted through an angle of, for example, 40.degree. and the stay is in compression, and in a second raised position in which the cab has been pivoted through a larger angle of, for example, 50.degree. and the stay is in tension. The stay comprises an arm pivoted to the cab and an arm pivoted to the vehicle frame. The ends of the arms overlap and are connected by means of a pin which passes through specially shaped slots extending in each arm. The pin is formed with offset pairs of flats which cooperate with the slots in the arms, and the pin can be rotated by a lever which controls operation of the stay.

Abstract: A liner for a ball joint in, for example, a gear selector lever, comprises an annulus (10) of plastics material having a spherical inner bearing surface (12) for engaging a ball element (1) and an outer surface (11) for mounting in a recess in a housing. One, and preferably each, end of the annulus is axially slotted (15) to form tongues (16a,b) which can be deflected radially to dilate the end of the annulus, allowing the ball element (1) to be inserted. Some tongues (16a) having a spherical inner surface (17a) forming part of the bearing surface (12), others carry radial projections (18) on their outer surfaces for engaging a radial cavity in the housing recess to retain the ball element (5) therein. The internal surface of those tongues (16b) is spaced from the spherical bearing surface to allow the assembled ball element (5) and liner (10) to be pushed into the recess.

Abstract: A reinforced elastomer attachment joint includes an elastomer section (304) butt bonded to a FIBERGLAS section (332), a boundary line (340) being defined therebetween. One or more fabric plies (338) are embedded within the elastomer (304) and FIBERGLAS (332) sections so as to be capable of transmitting loads from the elastomer section (304) to the FIBERGLAS section (332). The rigid FIBERGLAS section (332) is capable of being drilled and countersunk so as to accomodate fastening means (306) whereby the attachment joint can be secured to basic support structure (302).

Abstract: According to the invention, a prestress is applied to the bearing bush (17) to obtain a certain frictional torque between the latter and the spherical pivot while the locking ring (18) is placed on the bush (17); the punching tools (28) comprising a double die (30) are then actuated simultaneously in the direction of the socket (15) so as to deform the latter along two approximately circumferential and parallel zones located on both sides of the ring (18) to surround it without displacing it.

Abstract: Structure for connecting two members together, each including parallel, spaced apart, oppositely disposed, opposed surfaces having a cross section including a short straight portion adjacent one edge thereof, a longer obliquely extending portion extending from the other edge thereof and merging with an arcuate connecting portion which intersects the shorter straight portion, which surfaces are complementary and arranged to be in engagement with the members assembled. In one modification of the invention, the oblique portion of the surface cross section starts prior to the plane of the short straight line portion of the cross section and crosses it prior to merging with the connecting portion of the cross section.

Abstract: A coupling device for coupling structural members, such as panels, wall members and frame members, in edge-to-edge relationship. The device comprises a coupling member capable of cooperating with at least two edges to be connected to lock the same together and at least one coupling pin provided in each member to be connected, said pin extending longitudinally of an edge of said member and being spaced inwardly thereof. The edge is formed with faces forming chord planes of an imaginary cylinder whose axis coincides with that of the pin. The coupling member is provided with clip-on means for engagement around at least two adjacent pins thereby holding two adjacent edge faces in contact with each other, and fixing the structural members relatively to each other.

Abstract: This is a device for connecting the front ends of two horizontal struts at a post by inserting plates with teeth into slits in the ends of the struts and a plate with pockets into a slit that goes through the post. Such device is useful, for example, for a piece of garden furniture made up from horizontal and vertical parts. The strut plates have protruding wedge shaped teeth that point downward. The post plate has pockets on each side that correspond in shape to the teeth which are inserted therein.

Abstract: A linking means is disclosed for releasably connecting and quickly disconnecting two relatively discrete members in longitudinally aligned load bearing or load transmitting relationship to each other. The discrete members are connected by the coaction of hook-like flanges strategically disposed upon one member with angularly disposed retainer flanges disposed upon the other discrete member and the containment of a portion of one member between spaced outreaching flange members integrally formed upon said second member while a portion of the confronting edges of both members engage.By disengaging the confronting edges of the member and vertically moving the first member relative to said second member, a quick disconnect is achieved.

Abstract: In post and runner type scaffolding, a uniquely formed integral connector is created from the end of the runner or other similar cross-member. The integral connector secures to a scaffolding post bracket (preferably in the form of a ring flange concentrically affixed to said post and having a circular array of identical cutouts) and abuts forcefully against the convex surface of said post by means of a wedge acting through one of said cutouts. The connector has a longitudinally extending cross-slot in its end of a width and depth to accommodate the bracket therein, dividing the connector end into upper and lower limbs. The free end of each limb terminates with the tubular walls thereof reformed from the tubular shape of said cross-member to a shape (preferably more flattened) effective to strengthen and stiffen said limbs for their intended use of supporting scaffolding loads and connection stresses.

Abstract: A substantially tubular housing houses a swivel unit proximate one of its ends and a tailpiece proximate the other of its ends; with a relatively strong spring disposed therebetween to urge each unit against its respective housing end with sufficient pressure to retain each such unit as selectively positioned. A swivel seat washer is disposed between the spring and swivel; while a pair of washers, one plastic and one brass, are disposed between the spring and tailpiece. The swivel unit includes an extension with external threads and flat sides that cooperate with flat sides of an opening in the housing end and through part of the sidewall of the housing; the flat sides of the extension and of the housing opening coacting to restrict rotation of the swivel to ninety degrees of rotation about a first axis of rotation.

Abstract: A pivot pin assembly is disclosed which eliminates the need for a high pre-load torque to be applied in order to fix a friction-reducing element relative to the pivot pin. The pivot pin assembly includes a pivot pin having a shoulder formed on a central cylindrical portion thereof which is received in the bores of a forked member and in the bore of an intermediate member located therebetween. The pivot pin, has a conical surface at one end and is held fast in the bore of the other forked member by a collet which also has a tapered surface. The tapered surfaces of both the pin and the collet are mateable with the surfaces of the bores in the forked members as the collet is physically bolted to the pivot pin.

Abstract: A clamping system for "temporarily" fixedly joining together two "I" beam or girder type structures on for example an offshore oil rig to set up for example a portable crane on the platform structure. The system uses four sets of opposed pairs of clamping elements, each set of which includes two related pairs of clamping elements which grip the beams and are bolted together, the clamping system being used in place of welding the beams or girders together. When it is time to move the structure, the clamping elements are merely unbolted, allowing the removal or replacement of the portable crane on the platform structure. The four clamping elements of each set include two pairs of side-by-side members which are positioned along side one another to grip the opposite edges of the top flange of the bottom, support beam and bear down on the upper surface of one side of the bottom flange of the upper, crane girder.

Abstract: A joint of the type made between two elongated frame members and including also a connector member releasably coupling the two frame members tightly one against the other. This joint is characterized by its exclusion of special machining and construction of the components, by the connector member being unconspicuously concealed and by the possibility of assembling one frame member in any angular relationship about its longitudinal axis relative to the other frame member.

Abstract: In a locking device for attaching implements to convertible machines, preferably for fixing attachments to lifting slides of forklift trucks which comprise plate- or rail-like supports, which are adapted to carry the implements or attachments, which have retaining claws for interengaging with the supports, a locking member is rotatably mounted and axially immovably mounted on a disc-shaped axle, which is adapted to be connected to the implement or attachment, and said locking member is pivotally movable between open and locking positions and in its locking position is adapted to be positively coupled to the axle by a retaining element.

Abstract: The present invention provides a clamp which can be used to secure an accessory member to an abductor bar of an orthopedic-surgical table. The clamp includes a clamp block pivotally mounted on the clamp and oriented with respect to the clamp to clamp an object therebetween. A lever having a cam surface is mounted on the clamp so that the cam surface coacts with the internal mechanism of the clamp to orient the clamp block in an unclamped, intermediate and clamped position. When the clamp is in the intermediate position, the clamp loosely engages the clamped object so that relative motion of the clamp and clamped object can occur. Because the clamp can be stabilized on the clamped object by orienting it in the intermediate position the operator does not need to use a second hand to prevent the clamp from falling off the clamped object while the first hand positions and tightens the clamp. Thus, the clamp can be secured to the clamped object in a one handed operation.

Abstract: A buffer coupling for rail vehicles comprises a first coupling part which has a receiving shoulder adjacent its end with a first cylindrical portion spaced from the end of said first coupling part of increased diameter from said shoulder and forming a rib in a second cylindrical portion of smaller diameter than the rib forming a cylindrical slide surface over which a sleeve is slidable. The sleeve is urged away from the rib by a spring so that it projects outwardly from the second cylindrical portion of smaller diameter so that it may engage over respective legs of a forked end of the second coupling part which engages with the first coupling part so that the shoulder of the first part fits within the legs of the second coupling part. The sleeve is urged by the spring to engage over the outer cylindrical surface of the second coupling part.

Abstract: A connection coupling or socket arrangement contains two coupling parts each possessing a bore and arranged at an angle with respect to one another. In order to be able to interconnect rods or the like with one another, without the use of further components, the one coupling part serving for receiving one of the rods is continuously lengthwise slotted over the length of its bore. The end regions of this one coupling part bounding at such lengthwise or longitudinal slot each carry a respective portion or section of the other coupling part which is divided into such two portions or sections transversely with respect to its bore. These portions are subjected to the action of a resilient or spring force which strives to mutually shift both of these portions with respect to one another transversely in relation to its bore.