Abstract: A connector (10, 110) for joining a plurality of elements (15, 20; 115, 120) having attachment apertures (19, 21; 119, 121) therein including, a pin (25; 125, 125') having a radially extending head (27; 127) and a shank (26; 126, 126') extending axially from the head and having a tapering outer surface (29; 129, 129') over at least a portion of the axial extent thereof, a sleeve (35, 135) insertable in the attachment apertures and having a tapering inner surface (38; 138, 138') over at least a portion of the axial extent thereof for engaging the tapering outer surface of the pin, a discontinuity (37, 137) in the sleeve extending at least a portion of the axial extent thereof, and fastener (45, 50; 145, 150) for axially displacing the sleeve relative to the pin selectively to expand and to permit reduction in the diameter of at least a portion of the outer surface of the sleeve.

Abstract: A self aligning joint and linkages employing the self aligning joint. The joint includes a stem; a clevis mounted for rotation on one end of the stem and defining a pair of spaced arms; a stud having a circumferential groove proximate one end thereof; a body member positioned between the clevis arms and defining a socket mounting the one end of the stud for rotation about the axis of the stud; and an axle pin mounted at opposite ends in the clevis arm, passing through the body member to mount the body member for angulation about the pin axis, and including an intermediate portion positioned in the stud groove to preclude axial displacement of the stud out of the socket.

Abstract: The invention is an improvement in a machine having a housing and a pin received in the housing and coupled to a link-like movable part, either directly or with a bushing interposed between the part and the pin. The improvement comprises a retainer, preferably of cruciform-shape, which is attached to one end of the pin and has a plurality of radially-extending retaining arms. The improvement also includes a plurality of arc-shaped abutment members, each of which extends between and is in torque-absorbing contact with a pair of arms. The pin, a wearing component like the movable part or the bushing, is intended for eventual replacement when sufficiently worn. The pin is prevented from rotating with respect to the housing which is a non-wearing part expensive to replace or repair. The invention also includes a method for assembling machine components including a housing and a pin so that there is substantially zero clearance between each abutment member and a retainer arm.

Abstract: A pivot assembly for mounting an operating member on a base member for pivotal movement about an axis at an optimum axial position comprising: a pivot shaft having an axis, a base member and an operating member having axially opposable first and second inner surfaces respectively, a first mounting apparatus for mounting one of the members at a fixed axial position on the pivot shaft, and a second mounting apparatus for mounting the other member on the pivot shaft for relative rotational movement, and for axial movement to a position where the first and second inner surfaces axially oppose each other with an axial space therebetween, and the other member is at the optimum axial position. The second mounting apparatus includes, a pair of compressible disk springs mounted to be in a biased condition when the other member is at the optimum axial position. The disk springs constantly tend to move the other member in one axial direction away from the optimum position.

Abstract: A slim-line portable hose ferrule crimper is formed by a bar with a pair of spaced parallel tracks extending from one side thereof. A movable crimping die holder holding a crimping die half is mounted on the tracks adjacent the bar, and is moved back and forth by a threaded screw passing through the bar and into the movable holder. A stationary holder for a complementary second die half confronting the movable holder is releasably secured at a fixed location on the tracks, but may be released by a pivoting latch to permit its removal from the apparatus.

Abstract: The invention is an improved assembly of a bracket and pin for connecting a hock absorber to the road arm of a vehicle.

Abstract: Disclosed is a toothbrush having a replaceable head that is held in place to the handle by a latch. The head also pivots.

Abstract: An improved pivot pin which allows individual pin connection of each hammer in the rotor of a shredder is disclosed. The pivot pin includes male and female pin members which interengage in a tight fit so as to function as a single pin when fitted together. A bore extends through both of the male and female pin members, with the bore through the female pin member being threaded. A securing device such as a socket head capscrew passes through the male pin member from the outer to the inner end portion thereof and is threadedly received in the female pin member.

Abstract: A chain connector includes a second chain plate being integrated with a chain pin in each lateral portion thereof, each chain pin having an annular groove adjacent to an end distal to the second chain plate to form a neck portion. A first chain plate has a biased hole in each lateral portion thereof corresponding to chain pins respectively, the biased hole having an inward flange along a lower portion of a periphery thereof to engage with the neck portion of the pin inserted through an end link of a chain to connect the chain.

Abstract: A closure pin extends through aligned openings in first and second spaced apart eyes at the open end of a substantially U-shaped clevis. One end of the closure pin is threaded and mates with threads in the opening in the second eye. The closure pin includes a head portion and a radial flange at its opposite end, and it carries a releasable lock member. The releasable lock member includes a pair of detents which are positioned in radial slots in the flange. A spring biases the lock member into a position in which the detents extend axially beyond the radial flange towards the threaded end of the pin. A plurality of lock ramps are provided on the outer face of the first eye. The ramps are spaced circumferentially apart.

Abstract: A wiper blade holder has a main yoke which is provided with a single through hole for selectively receiving either one of differently dimensioned pivot pins. In particular the pivot pins have latching means, e.g. in the form of annular recesses, with which first or second latches selectively interengage in dependence on which pivot pin is received in the through hole. To support a small diameter pivot pin within the through hole at least one bush is fitted within the hole to reduce the diameter of the latter.

Abstract: An adapter for mounting a blade assembly on a wiper arm comprises an adapter body formed with a transverse adapter-body hole through which the pin is engageable, a latch for releasably retaining the pin in the hole, and a mount securing the body on the assembly over the blade hole thereof. The body is of U-section and embraces the blade assembly at the blade hole. In addition the body has a pair of side walls that form the mount and that flank the blade assembly at the blade hole. These side walls are formed with aligned holes and the blade assembly has at the blade hole lateral projections engageable in aligned holes. The projections in turn are annular collars coaxial with the blade hole.

Abstract: A locking pin and clevis wherein a slidable lockable member engages one end of the pin to lock it and a spring can be locked to said slide member to prevent it from moving to the unlocked position. The spring can be disengaged with the slide member to allow the slide member to be moved to the unlocked position so that the pin can be moved out of engagement with the one end of the clevis.

Abstract: A sealed and lubricated pivot pin assembly and method for joining linkage components in earth-moving machinery. The pivot pin assembly includes a pivot pin subassembly, a pair of spacer rings, a pair of track chain type annular seals, an end cap subassembly, and a releasable fastener. The spacer rings simplify joint assembly by setting up and controlling the proper squeeze on the annular seals, preventing crushing of the annular seals during torquing of the releasable fastener, and controlling the set-up length of the assembled joint so that no shimming is required. Each of the pivot pin and end cap subassemblies include an end sleeve which extends beyond the joint clevis or brackets a sufficient distance to allow the pivot pin assembly to float axially and, thereby, compensate for minor deflections in the joint members. The pivot pin assembly is symmetrical in that the pivot pin and end cap subassemblies have common dimensions which permit the pivot pin assembly to be installed from either side of a joint.

Abstract: A multipart mold having a resilient retainer engageable with a pin attached to a mold part to hold the mold part in a desired position relative other mold parts.

Abstract: A device for the connection of two tool portions has in one of the tool portions a cylindrical fitting pin (2) and an annular surface (3). The other tool portion (4) is provided with a mating bore (5) and an annular end face for receiving the fitting pin (2), and it has two diametrically opposed, radially extending internal threads (12) each with a screw (14, 13) provided with a ball (17) or a conical recess (15). In a transverse bore (6) of the fitting pin (2) is arranged a radially displaceable tightening bolt (7) which at one end has a conical recess (8) cooperating with the ball (17) of one screw (14), and at the other end has a ball (9) which cooperates with the recess (15) of the second screw (13). Both balls (9, 17) are rotatably mounted in a ball socket (10, 16) of the tightening bolt (7) or the screw(s) (14), respectively. On tightening one of the screws (13, 14) these act upon the tightening bolt (7) so as to press together the annular surface (3) and the end face (11).

Abstract: The pin assembly comprises a piston or crosshead connecting pin which has a throughgoing, axial hole formed therein which is tapped at one end to receive a headed fastener. Radial bores are formed in the connecting pin which bores open onto the axial hole and also onto the outer surface of the connecting pin. Locking pins are slidably disposed in the radial bores so that, as a headed fastener is threaded into the tapped end of the axial hole, the head of the fastener forces the locking pins to protrude from the radial bores and engage an annular groove, provided therefor, in the piston or crosshead.

Abstract: Two pin joints, each mounted at a respective end of a coupling rod, each comprise an outer joint head including a cavity which is open at least in one axial direction as well as a diametral bore and an inner joint head disposed in the cavity and likewise including a diametral bore. A pin extends through both bores and is locked at the outer joint head by a pin retaining device. To accomplish that, the pin has two ends projecting radially out of the outer joint head and each formed with a notch transversely of the longitudinal direction of the pin. The pin retaining device is embodied by a helical spring supported at its one end in the two notches of the pin and at its other end on a shoulder. The shoulder preferably is formed at a sliding ring seal which seals the outer joint head against a housing member.

Abstract: A lockable, pin-retaining coupling comprising a clevis having a bore extending therethrough and a pin slidably positioned within the bore. A brake restrains movement of the pin within the bore. Stops adjacent opposite ends of the pin prevents the pin from being removed from the bore.

Abstract: A window operator having a base with an upstanding pivot pin having a bushing thereon and at least one component pivotally mounted on the bushing. The components are held in assembled relation by a captured washer and the washer has an outer annular portion formed to provide a controlled clearance. A method of forming the window operator comprises assembly of the pivot pin, bushing and pivotal component to a mounting base and the capturing of a washer beneath the head of the pivot pin and with an inner annular part of the washer engaging an upper edge of the bushing which extends beyond the upper surface of the pivotal component, followed by a deformation of the outer annular part of the washer to compress the pivotal component between the washer and the base followed by release of the compressive force to permit spring-back of the outer annular part of the washer to provide the controlled clearance.

Abstract: A quick connect/disconnect assembly includes a headed bifurcated primary member or post having a secondary or locking means releasably, slidably and swingably related thereto for movements between locked and unlocked positions.

Abstract: A peristrophic internal combustion engine with increased power output has greater torque and reduced friction. The distance of rotation between the inertia weights and the crankpins is increased to increase torque. These transposed inertia weights are embodied in top and bottom journals of the connecting rods and in the pistons assemblies. Each piston assembly includes a top piston-ring-holder piston and a lower, bearing piston joined to reciprocate in the cylinder. The lower bearing piston may have a circumferential ring, cylindrical barrel rollers, or spherical ball bearing arrangement contacting the cylinder wall while the upper piston carries the piston rings. The spherical ball bearing arrangement allows lower piston rotation about the piston axis. Inner and outer cylinder liners increase the cylinder operating life and reduce combustion heat loss through the cylinder wall.

Abstract: A link joint containing, between two component parts to be connected pivotably, a tension ring placed in corresponding cavities in the component parts extending from a pin, which tension ring, in addition to the pin on which the component parts bear with opposing bearing surfaces, encloses a tension pin which extends fully within one of the component parts and parallel to the pin axis.

Abstract: A mine roof support has gap seals in the form of L-shaped plates on its roof cap and goaf shield. The side walls of the plates overlap at the junctures between the roof cap and goaf shield and are connected with pivot connections each of which is composed of a pin inserted into apertures in the side walls of the plates. The pin has a peripheral groove at its inner end region which receives an arcuate yoke plate serving as a support. The yoke plate is itself detachably secured in place with a releasable rod permitting the pivot connection to be easily dismantled.

Abstract: A pin for a high wear, high abrasion, heavy loading joint has a manganese steel shroud in a groove in the center of a high strength alloy steel core. The shroud extends through at least the area of wear. The retaining pins, or keepers, are in the high strength steel end portions of the pin.

Abstract: A joint for connecting two structural members of a machine for pivotal movement relative to each other, one of the frame members including a bifurcated portion having spaced-apart parallel flanges, such flanges having equal diameter coaxial openings through them. The other frame member is located in part between the parallel flanges and has a third opening through it coaxial with the other openings. Thrust bushings and thrust plates are utilized to absorb thrust loads on the joint, and one of the thrust plates is held from circumferential movement relative to one of the flanges by means of a weld bead on such flange which mates with a radial slot in the thrust plate.

Abstract: A rotary coupling system for railroad cars and the like includes a rotary connector which is mounted in a yoke and to which a car coupler is attached for unitary rotation. The yoke has an aperture or opening through which a pivot pin is inserted into aligned pin receiving holes in the rotary connector and a shank of the car coupler. An improved pin retainer block is provided to selectively close the opening and retain the pin in the receiving holes. Plural flanges extending radially outward of the retainer block provide support therefor in the yoke pivot pin opening between inner and outer radially inward extending support surfaces. The support surfaces are axially spaced apart from each other a predetermined distance for accommodating predetermined limited axial movement of the retainer block in the pivot pin opening.

Abstract: An improved lock retains the pin connecting a crank in the gear shifting mechanism of an outboard motor to the shift shaft. The crank is mounted on a movable shaft having a groove adjacent the crank. A locking member, fastened to the pin, has a slot by which the locking member is removably retained in the groove for securing the connecting pin in the crank and shift shaft.

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 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 boat loader and unloader has a vertical post which is mounted on the rear of a vehicle. A carriage is slidably and pivotally mounted on the top of the post by rollers. A reel assembly having a crank-operated, cable take-up tube is removably mounted transversely across the midportion of a boat. A cable is attached to and extends between the reel tube and carriage which is clamped to the boat transom. Acutation of the crank-operated reel tube winds the cable about the tube raising the boat from the ground to a position where the boat and carriage then can be pushed forwardly on the rollers to move the boat and carriage to a forward storage position on top of the vehicle. A reverse operation enables an individual to manually unload the boat from on top of the vehicle. An improved conrol mechanism is mounted on the reel and includes a plurality of spring-biased camming rollers which are engaged between ramp surfaces formed on a band brake and a stub shaft attached to the take-up reel.

Abstract: A wrist pin for coupling a connecting rod to a piston in an engine is disclosed. The pin takes the form of a metal tube having a specially designed aperture with an increased surface area in comparison with conventional wrist pins having bores with circular cross section. In the preferred embodiment, the internal aperture is defined by alternately connected convex and concave surface portions.

Abstract: A wrist pin for securing a crank arm with a pittman arm to translate rotary motion into longitudinal motion and comprising a shank adapted for insertion transversely through a bore provided in the crank arm, a retaining plate secured to one end of the shank and engagable with one face of the crank arm for positively securing the shank in engagement with the crank arm, an enlarged head member at the opposite end of the shank for engaging the opposite face of the crank arm in order to limit the movement of the wrist pin in one direction, and a connecting member extending axially outwardly from the head member for engagement with the pittman arm.

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: A pivot pin assembly for a bucket loader wherein a pivot pin having an enlarged tapered head passes through bushings in the loader boom arm to a distal end whereat an externally tapered thrust collar is slideably mounted thereon. An adjustment plug is threaded in the thrust collar and regulates the spacing between the collar and the pin end thereby setting the side clearance for the bushings. A pair of split wedge collars respectively lock the tapered pin head and the thrust collar in the bushing bracket apertures, the split collars being wedgingly locked by end plates bolted to the respective ends of the pin. Lip seals are provided between the boom arm and the pin head and the thrust collar and the boom arm and the pin is provided with an internal lubricant reservoir communicating with the boom arm bushings which may be easily refilled as necessary.

Abstract: A hinge assembly includes a hinge pin which passes through interfitting knuckles of two leaves which are to be hinged. An L-shaped tab lock has, in one embodiment, one leg trapped between a pair of the knuckles and another leg which passes through a slot in the head of the hinge pin and is folded over to prevent axial movement of the pin relative to the tab lock and knuckles. Preferably a flat on the side of the pin head abuts a flat surface on one of the leaves to prevent movement of the pin relative to that leaf.

Abstract: A means for pivotally mounting the bellcrank of a bucket linkage between the boom arms of a loader, including pivot castings secured to each of the boom arms, a shaft extending through said pivot castings and the bellcrank, a plate secured to one end of the shaft and bolted to the adjacent pivot casting to prevent rotation of the shaft relative to the boom arms, and a second plate bolted to the other end of said shaft to limit inward axial movement of the shaft relative to the adjacent pivot casting.

Abstract: An improved anchor is provided for use with a mobile home having an underframe with an I-beam and wherein the mobile home is mounted above a base. The anchor comprises a pair of spaced clamping elements, each clamping element having an upper flange engaging portion for engaging the I-beam and a lower downwardly depending portion. One end of a chain is positioned between the downwardly depending portions of the clamping elements while a clevis is inserted through registering apertures in the downwardly depending portions and also through a link of the chain to thereby secure said end of the chain to the clamping elements. The other end of the chain is attached via a turnbuckle to the base.

Abstract: A kingpin assembly is for a steering axle of the type which includes an inner axle member which pivotally supports at a mounting bore in each end thereof a steering knuckle and spindle extending outwardly therefrom. The kingpin includes an upper and lower section and an intermediate section therebetween. The intermediate section is provided with a helically splined outer surface which is rigidly retained within the splined mounting bore by an interference fit therebetween. The rigid upper and lower yoke arms of the steering knuckle are respectively pivotally mounted about the upper section and the lower section of the kingpin.

Abstract: The chain has laminated, laterally flexible link members interconnected by pairs of rocker-joint bearing members. The laminated links freely engage and are retained by transversely spaced notches in the bearing members, which also engage drive sprocket teeth. The chain is manually separable and is designed to operate on the industrially standardized roller chain type drive sprockets.

Abstract: Means for improving the traction of wheeled equipment used in the logging industry comprising an improved skidder ring with clevises to which the connecting tag chains are fastened by a pin preferably secured in place by a spot of welding material. When a tag chain breaks and must be replaced, the pin is severed by a torch permitting the remaining two pin parts to be removed from the clevis. The end link of the replacement or repaired tag chain is secured by a new pin placed in the clevis. A spot of welding material is applied to the pin to hold it in place.

Abstract: A releasable pivot joint for use in underground mining installations comprises first and second connecting members. The first connection member has a width which is greater than its thickness and a reduced portion that reduces its width to a core width. The second connection member is formed with a slot into which is inserted the reduced portion of the first connection member. The width of the slot is greater than the thickness and the core width of the first connection member. The length of the slot is greater than the width of the first connection member. The thickness of the second connection member is smaller than the core width of the first connection member. The width of the first connection member extends transversely of the length of the slot when the connection members are in the connected position.

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: An adjustable lock arrangement for a lift truck mast hanger pin to retain it within an upwardly opening slot, such as formed by a J-hook member provided on the front of a lift truck frame, comprises a bore provided in the J-hook member above the slot and a vertical locking plate having a pilot pin provided intermediate upper and lower portions and adapted to fit rotatably within the bore, an arcuate surface on the lower portion adapted to engage a mast pin disposed within the slot and having a center adjacent the pilot pin axis, an arcuate slot provided in the upper portion having a center at the center axis of the pilot pin, and a bolt disposed in the arcuate slot and threaded into the J-hook member for securing of the locking plate against rotation.

Abstract: An improved resilient retainer which provides a highly reliable clamping action upon grooved clevis pins and the like. The pinless retainer configuration comprises two essential sections; a clamping section which is spring loaded to be secured around the core diameter of a grooved clevis pin together with an entry section which prevents the retainer from being removed easily. The retainer requires a grooved clevis pin and the like to be inserted past a first entry section and then snapped into the clamping section. The retainer may be formed from any resilient material and operates effectively with a minimum of insertion force without sacrifice of positive clamping effectiveness. In a second form the pinless retainer includes an encompassing guard clip for the entry section with removal from a grooved pin requiring a first removal of the associated guard clip.

Abstract: A pin or bolt slidingly supportable in rings at opposite ends, or throughout its body in a sleeve, such as through the eyes of a clevis, is usefully locked against axial displacement by a radially sliding spring-biased detent which fits into a groove of a supporting ring or sleeve, securing it against axial displacement. The supporting ring has a slot extending inward from a support surface and sized to receive a key, such as a disc or a coin, which may be inserted in the slot to engage and depress the detent against its biasing spring, sufficient to displace it from the groove of the ring and thus unlocking and allowing the pin to be displaced in its support by sliding therefrom axially. In a modified form, where the supporting rings of a clevis are dimensioned so small that the radially cut slot would tend to weaken them, the ends of the pin may be secured by extra annular rings or washers mounted adjacent to the main supporting rings of the clevis.

Abstract: A pivot pin assembly for mounting a loader bucket to a loader arm of a tractor. The pivot pin assembly includes a cylindrical pin having spaced-apart retaining sleeves which capture a sleeve bearing therebetween. The retaining sleeves engage the bucket bracket assembly and the bearing engages the loader arm assembly. Flanges on one retaining sleeve engage the bucket bracket assembly to restrict axial movement of the pin in one direction. A cover plate, secured to the bucket bracket over the flanges, restricts axial movement of the pin in the other direction. The flanges define two spaced-apart sides which are retained in a channel on the cover plate to prevent rotational movement of the pin with respect to the loader bucket. The pivot pin assembly may be removed by detaching the cover plate and pulling the pin from the bucket bracket assembly and the loader arm assembly.

Abstract: The invention relates to a piston assembly for compressor and the method of making the assembly. A piston body is molded with spaced apart downwardly open grooves formed with concave semicylindrically shaped summits and parallel side walls. The summits and sidewalls are formed with pimples. A connecting rod pin having a connecting rod attached thereto is press fitted into the grooves. The pimples may serve as weld pimples by being softened by a welding current. The pimples on the sidewalls may alternatively be mechanically swaged to press inwardly against the rod to hold it in its installed position.

Abstract: Structure for removably locking a cover in a covering disposition. The locking device is arranged to be released notwithstanding the disposition thereof in a relatively inaccessible area of the machine on which the cover is mounted. The locking device includes a locking pin which is axially movable so as to have clearance with the cover with the pin being so moved by a tool inserted through the small access space available to the locking device. The pin is drawn back outwardly into locking arrangement with the cover by a threaded device having a shank portion passed through a hole in the cover into threaded association with the locking pin, permitting threaded operation of the device to draw the pin outwardly into the hole of the cover and thereby lock the cover against rotation about a pivot mount thereof.

Abstract: A sealed pivotal connection includes a bore member having a chamfered end stub shaft, a pivoting member journalled on the stub shaft and having inner and outer grease seals, and an end retainer cap attached to the stub shaft end having a recess receiving the entire chamfered end of the stub shaft to assure location of the outer grease seal on the cylindrical portion of the stub shaft.