Abstract: A torque coupling system includes an impeller that is connected to one end of an impeller shaft without the use of threads. The connection is made by cement and dowels. A drive system for the shaft includes a hollow coupling into which the other end of the shaft can be fitted. The shaft includes longitudinally extending slots formed at its end. The coupling includes spaced, longitudinally extending keys adapted to be fitted into the slots formed in the shaft. The drive system also includes a torque limiter that is connected intermediate the coupling and a drive motor. If the drive motor is an electric motor, the motor can be provided with automatic shut-down circuitry that is activated in the event of a current/torque overload. Visual and aural alarms are provided to alert the user that a shut-down has occurred.

Abstract: The center of gravity of a retaining pin which is struck into a retaining-pin receiving hole to join a rotor barrel with a rotor shaft is eccentrically positioned toward the leading end of the pin beyond the axis of the shaft so that upon rotation of the rotor, the pin is forced to thrust toward the bottom of the hole by the centrifugal force, thereby preventing the pin from pulling out of the hole.

Abstract: Chuck mechanisms quickly connect and enable quick disconnection of an impeller shaft of a mixer from the drive shaft of the motor unit. A spindle has a keyway which enables a key, either a detent key which is movable in the keyway or a key which is provided by pins extending from the shaft, to be aligned in locking position where the key transfers the thrust from the spindle to the shaft or an unlocked position where the shaft is rotated out of the locking position and may be removed from the spindle. The key is retained in locking position by an outer sleeve or collar having a slot which enables the key to move away from the shaft when the shaft is rotated to the unlocked position. When the collar is rotated to move the slot away from the key, the key is locked against outward movement.

Abstract: Disclosed is a flywheel mounting device for an internal combustion engine in which a keyway extends along the tapered surface of a flywheel in the axial direction from the small diameter end portion thereof and terminates at an intermediate portion thereof, so that the tapered surfaces of the crank shaft and the flywheel are closely fitted together over the entire periphery thereof at the large diameter end portions thereof.

Abstract: An improved structure for assembling a gear to a shaft to be rotatably mounted in a housing including a rotatable shaft with a projection member radially extending therefrom and with the hub of a gear slidably mounted on the shaft so that one face of the hub of the gear is adjacent to and opposed to one side of the projection member and a fastening member cooperable with such hub face and opposed side of the projection member to restrain rotational movement of the gear relative the shaft.

Abstract: The impeller mounting apparatus includes one or more pins extending through the hub into the shaft with the pins being retained in the holes by means of a resilient metallic band of continuous construction which is forced onto the hub into grooves or recesses which prevent the dislodgement of the band and the inadvertent loosening of the impeller on the shaft.

Abstract: There is provided a shelving system for use in storage compartments, which shelving system utilizes slidable horizontally extending bracing members which by creating a static frictional force between the shelf and the compartment walls holds the shelf in place and for heavy loads, the same shelving system which utilizes slidable horizontally extending bracing members engaging with vertical columnar members whereby free access is provided to the shelves with elimination of any outboard columnar members or legs.

Abstract: A securing mechanism for holding an exercise weight-disc on the end of the lifting bar while allowing a modicum of rotational movement in the disc as the bar is being manipulated by the exerciser. A sleeve-like collarpiece, having a smooth cylindrical bore which has therein a serrated flange, is fitted over the threaded end of a weight lifting bar that has a longitudinal groove passing through the set of threads. The collarpiece is slid onto the threaded end, and into registry with a weight-disc and thereafter rotated so that its rotatable gasket-surfaced face snubs against the weight-disc by virtue of the serrated flange engaging and working in cooperation with the bar threading.A novel ball-bearing/race, inserted in the collarpiece face, and to which the gasket is affixed, provides a rotatably movable base which will allow the weight-disc(s) to undergo a somewhat constrained rotation as the bar is twisted during lifting exercises.

Abstract: In the case of a plug connection for drilling or boring tubes, rods and worms for earth boring equipment with a male part and a female part, with a radial coupling for torque transfer and with an axial coupling having in the overlap zone of the male and female parts a locking device which can be introduced into an annulus for transferring axial forces, it is provided that the locking device is constructed as a multilink chain, which essentially extends around the entire annulus and which is introduced through the female part into the annulus via a single opening. This device provides a plug connection, which has a very simple construction and after extremely rapid installation is suitable for transferring very high forces.

Abstract: A method and apparatus for coupling the drive shaft of an integrally molded modular screw conveyor is disclosed. A non-circular elongated drive shaft includes a non-circular axially extending aperture for receiving a first end of a coupling member having a corresponding size and shape such that rotation with respect to the shaft and coupling member is not possible. In addition, both the shaft and the coupling member define aligned recesses for receiving a locking pin so as to also prevent axially movement between the two. An integrally formed screw conveyor module includes an axially extending aperture with a size and cross-sectional shape for slideably receiving the drive shaft such that rotation is prevented between the drive shaft and the module. The locking pin is held in position by sliding the module over the locking pin when it is in place within the shaft and coupling member.

Abstract: A locking device for a Whisler style adapter, which has upper and lower legs flanking an excavator lip having aligned openings and which are adapted to receive a wedge and C-clamp lock, the lock including a C-clamp and cooperating wedge which are spaced apart, and interposed therebetween is a spring loaded keeper member so as to permit movement of the adapter relative to the lip under an applied load.

Abstract: A construction component has a plurality of male and female lock assemblies for engagement with female and male lock assemblies of a similar construction component for locking the two components together. The male lock assemblies are arranged in vertical tandem pairs, as are the female lock assemblies. Each of the male lock assemblies includes a rigid pin which is reciprocable with respect to the component between an advanced position and a retracted position. Each female lock assembly defines a socket opening and includes a transversely reciprocable lock for locking a pin in the socket opening. The male lock assembly includes a similar transversely reciprocable lock adapted to lock the pin in at least one of, and preferably both of, its two positions. The locks of each tandem pair of assemblies are connected for joint movement and are adapted so that, when lowered, the lower lock engages its respective pin before the upper lock engages its pin.

Abstract: An elastically conformable tapered pin-key for securing a part and a shaft where the part has a cylindrical bore for receiving the shaft and a keyway tangentially intersecting the bore, and the shaft has a tangential groove shallower than the depth of the intersection of keyway and the bore. The pin-key comprises two cylindrical surfaces converging at a small angle, and an axial cavity defining sidewalls sufficiently thin to allow the faces to elastically deform to conform to the keyway and groove. The pin-key is placed in the keyway and preloaded so that one face conforms to and engages the surface of the keyway and the second face conforms to and engages the surface of the groove in the shaft, thereby securing the part and the shaft against relative rotational or axial movement.

Abstract: An improved key stop for use in connection with a marine propeller and drive shaft assembly. The key includes a pin positioned for insertion into a radial bore in the keyway, thus precluding axial movement fore and aft of the key in the keyway, while retaining ease of installation of the propeller hub on the drive shaft.

Abstract: A roller reamer/stabilizer apparatus for use on a drill string assembly. The apparatus includes a reamer body which has a number of pockets formed in the body. A cutter assembly is anchored in each pocket. The cutter assembly includes a bearing pin on which two bearing blocks are mounted with a reamer cutter mounted in between the two bearing blocks. The entire cutter assembly is first assembled and is then placed in a corresponding pocket of the reamer body. The cutter assembly is secured within the pocket by means of pull pins which are inserted transversely through the reamer body so as to engage corresponding holes which are formed in the bearing blocks of the cutter assembly. The pull pins are secured by means of snap rings that can be easily removed so that the pull pins can then be retracted to permit the cutter assembly to be replaced after it is worn.

Abstract: Connection means for connecting two components such as conveyor channel sections or guide sections includes an elongate connector. The connector is insertible into laterally-open recesses formed in coupling elements attached to the two components. The laterally-open recesses define an elongate aperture which is slightly longer than the connector so that the connector is received within the aperture with a predetermined amount of axial play. A retaining device prevents axial movement of the connector within the aperture by filling up the space available for said predetermined amount of axial play. The retaining device comprises a C-shaped resilient member and a wedge-shaped member. The resilient member is made of corrosion-resistant, resiliently-deformable plastics material, and the wedge-shaped member is made of metal. The wedge-shaped member can be driven into the resilient member to expand the resilient member against the walls of said space, thereby fixing the retaining device in position.

Abstract: An elastic ring for maintaining a pin in a hole formed in a socket and work drive shaft of a rotary tool. The ring has integral fingers which project into the ends of the hole so that the pin cannot dislodge the ring by centrifugal force when the tool is operating at high speed. Several variations of the ring include weighted areas at portions of the ring midway between the fingers, which areas counterbalance centrifugal force on the ring to supplement holding force of the fingers upon the pin.

Abstract: An improved retainer for the locking pin of an impact drive socket features an axially-movable sleeve that surrounds the pin and retains the same. The sleeve may be advanced (or retracted) on the socket, against the bias of a spring, thereby uncovering the locking pin. The pin may be removed to facilitate removal of the impact socket from the drive shank of an impact wrench or other tool.

Abstract: A universal hammer having separable handle and head portions to permit the use of interchangeable heads. The head is formed with a female threaded bore which threadedly engages a male threaded shank. A cross hole is formed through both the head and the shank so that a pin may be inserted to retain the separable parts against relative rotation. A collar is also threaded to the shank and has a cylindrical portion which surrounds the cross bore to prevent removal or loss of the pin. A locking nut jams against the collar to prevent it from becoming loose.

Abstract: A push-pull collar or a yoke sleeve ramps locking pins radially outward when the collar is pushed away from a power takeoff stub shaft so that the yoke sleeve may be removed from the shaft. The pins engage detents in the ramps to hold the pins outward and to hold the collar axially inward on the yoke sleeve. Pushing the sleeve on a shaft locks the pins, releasing the collar. When the pins move inward in engagement with a shaft groove, a spring moves the collar axially outward, partially covering the pins to hold them in an inward, locked position.

Abstract: A well wall engaging member such as a reamer or stabilizer in which the wall engaging parts are releasably retained on the body of the device by mating undercut surfaces between the body and the wall engaging member and are released from the body by moving the wall engaging members lengthwise to a non-undercut section of the body and the wall engaging members are held against such lengthwise movement by a retainer pad secured to the body and blocking longitudinal movement of the wall engaging member.

Abstract: A key for use with knock-down shelving units which can be fixedly assembled with the vertical posts of the unit before they're hoisted into vertical position and enables easy assembly of the horizontal beams therewith. The key includes a vertical shank with a pair of hooks projecting outwardly from the shank intermediate its ends and then upwardly in the form of a hook projection. The lower side of each hook adjacent the shank is provided with a downwardly opening notch which will wedgingly lock with the walls of the vertical post at the lower end of the slots therein. The lower side of each hook slopes downwardly from the shank to assist in assembly of the key with the vertical posts.

Abstract: The invention provides a reliable connection between chutes of a heavy-duty chain-and-flight conveyor with considerable side loading.The connecting member is a shaped link, the shouldered end portions of which are coupled with the walls of the chutes to be connected with suitable yokes is characterized in that the inner flanged walls 13 and 14 of the catch 8 and securing end portion 9 of the connecting member 1, as well as the walls 15 and 16 of the yokes 2 and 3 co-operating with the latter are inclined relative to the plane 17 of the partition of the chutes 6 and 7 and convergent toward this partition plane. The catch 8 is mounted in a through hole 10 of the catch yoke 2, the strongly inclined wall 11 of the said hole 10 being so situated that it enables the catch to be introduced only in a case when the connecting member 1 has been inclined relative to the conveyor axis.

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 head flange mounting device for mounting a head flange on a casing in a turbo-machine, such as a centrifugal compressor, is disclosed which includes a plurality of slide keyways formed on the inner surface of the casing and on the outer circumferential surface of the head flange in such a manner that each slide keyway formed on the casing and each slide keyway formed on the casing and each slide keyway formed on the head flange are in juxtaposed relation to form a pair of slide keyways. A slide key is held in each pair of slide keyways so as to keep the center axis of the head flange in alignment with the center axis of the casing at all times.

Abstract: A key device for locking an element to a shaft for rotation therewith includes a key-engaging surface on the shaft which is provided with first and second opposite ends and angles radially inwardly toward the shaft axis. The first end of the key-engaging surface is located at the shaft periphery, and the shaft is provided with a radially extending shoulder at the second end of the key-engaging surface. An element to be secured to the shaft has a shaft-receiving opening which receives that portion of the shaft having the key-engaging surface. The element is provided with an outer side and a radially extending keyway which opens through the shaft-receiving opening in registry with the key-receiving surface. The keyway is provided with a rear cam surface which extends angularly from the outer side of said element at a point radially spaced outwardly from the shaft-receiving opening to the shoulder on the shaft.

Abstract: A key that is in operative engagement between a keyway in a vertical shaft and a keyway in a driven member, such as the hub of a sprocket, is bent at its lower end to prevent the drive member from sliding downwardly out of engagement with the key.

Abstract: A universal joint shaft and a power take-off shaft, particularly between an agricultural implement and a tractor, may be coupled and uncoupled by a device which includes a coupling sleeve adapted to be axially locked and unlocked relative to the power take-off shaft by operation of a control ring which is moved in generally parallel relationship with the power take-off shaft between a first and a second position. The coupling sleeve is locked in axial engagement with the power take-off shaft by a spring device which, when engaged by the control ring when the control ring is moved to its second position, operates to unlock the coupling sleeve from the power take-off shaft. The control ring is pivotally mounted and is subjected to the force of an over-center snap spring which maintains the control ring in its first or second position under a spring-biasing force, with the control ring when in its first position being out of engagement with the locking spring device.

Abstract: Apparatus for driving a clutch plate includes a drive pin comprising a shank and a drive head rotatably mounted thereon. In a preferred embodiment, an intermediate clutch plate of a two-plate heavy duty clutch is axially but non-rotatably movable with respect to the clutch flywheel. The flywheel contains an axially extending annular flange from which the aforesaid shank fixedly extends radially inwardly. The drive head, rotatably mounted thereon, is disposed within a recess of the clutch plate for driving engagement of the plate. The apparatus provides a self-aligning clutch plate drive system which substantially minimizes the declutching failures experienced in conventional non-self-aligning drive systems. A friction member resiliently holds the drive head to the drive pin shank for ease of handling and installation of the apparatus. Typically, clutch plate drive recesses comprise slots having radially extending walls positioned parallel to the clutch plate axis of rotation.

Abstract: In a system for interconnecting buoyant float sections in an articulated manner, a receiver assembly for automatically engaging a connector of a type having a longitudinally inclined nose section and a pair of transverse locking grooves. The receiver assembly comprises a receiver housing with an interior channel, a U-shaped locking guillotine member and a locking assembly. The locking guillotine is slideably introduced into a transverse slot in the receiver housing; it rests on a pair of locking bars in the locking assembly with the legs of the locking guillotine extending part-way into the interior channel of the receiver assembly. As the connector is extended into the channel, the legs of the locking guillotine contact the inclined surface of the connector nose section, causing the locking guillotine to slide up within the slot until aligned with the connector locking grooves. The locking guillotine then falls, the guillotine legs sliding down within the locking grooves, to effect interengagement.

Abstract: A construction for locking the hub of a gear or other means to a shaft. The shaft is cylindrical but is cut away to form a flat surface parallel to the axis of the hub. A wedge has a portion which fills the cavity between the cylindrical inside surface of the hub and the flat surface on the shaft. An integral lug portion of the wedge extends radially outwardly into a slot in the hub so as to prevent the hub from turning with respect to the wedge. The wedge is prevented from turning with respect to the shaft by its flat bottom surface which is coextensive with the flat surface on the shaft. That provides a driving relationship between the hub and the shaft. The driving relationship between the wedge and the hub is through side surfaces of the cavity in the hub and the lug portion of the wedge.

Abstract: A rail length and rail joint is described which avoids the use of bolts, the rail length comprising basically a fastening element secured at each rail end to be joined, the element being provided with a through bore extending parallel to the longitudinal axis of the associated rail length and a projection located in a position in which it intersects the bore and being radially displaceable to a location in which it lies clear of the bore. The rail length may be provided at each end with such a fastening element, one constituting a male element and the other a female element, the rail joint incorporating abutting male and female elements and a necked connecting pin.

Abstract: An excavator tooth assembly mountable on a tooth support member of a dipper or bucket of an excavator, having an opening therethrough, generally comprising a tooth mounted on a tooth support member, having a pair of aligned openings registering with the tooth support opening to provide a pin receiving opening, a locking pin retainer disposed in the pin receiving opening, having a resilient pad engaging the tooth support member, a set of shims, each interposed between an end portion of the locking pin retainer and the tooth member, and a tapered locking pin inserted in the pin receiving opening and engaging the locking pin retainer and the tooth support member in wedging relation to positively secure the tooth member on the tooth support member.

Abstract: A locking device for excavating equipment including a C-clamp member and a wedge member, the wedge member having ratchet-type teeth held in position against the C-clamp member by means of an arcuate lock which itself is resiliently mounted within the C-clamp member.

Abstract: A C-clamp and wedge for releasably locking a slip-over adapter to the lip of a shovel dipper or like piece of excavating equipment wherein the serratons on the wedge are interlocked with serrations on a resilient lock member received within the clamp and uniquely stabilized by confining sidewalls on the clamp.

Abstract: A support assembly for a mine working has a floor-sill structure for engaging on the floor of the working and a roof-engaging member or members braced by one or more props against the roof of the working. The floor-sill structure employs one or more slidable skids which can be selectively extended in length at the forward end by fitting an extension component of the same width thereto. The or each skid is recessed to receive rear projections of the associated extension component and securing means, such as spindles or shaped locking elements, are used to secure the extension component to the skid. When the extension component is removed, inserts are located in the recesses of the skid to fill the latter and these inserts can be likewise secured with the same securing means.

Abstract: Several forms of latching mechanism are disclosed incorporating a pivotal cam and a spring-loaded plunger. In the preferred form, a lock pin is also included. The latching mechanism is particularly suited for latching interfitted members at least one of which is tubular. In one preferred form, the members are prevented from being interfitted by the lock pin which bars entry into the tubular member. The lock pin may be withdrawn only when the tubular member occupies a preselected orientation relative to a fixed frame member. When so oriented, the plunger's hose is received within a recess. This allows pivotal movement of the cam lever, and permits withdrawal of the lock pin. After the members have been interfitted, the lock pin is reinserted by pivotal movement of the cam lever. In its reinserted position, the lock pin enters aligned slots in the members, thereby locking the interfitted members together.

Abstract: Improved locking or keeper pin system for replaceably retaining digger teeth on large power excavator shovels includes a pair of wedge-shaped keeper pin members which cooperate to produce a seizing taper lock. The keeper pin members are easily installed and released from the top of the tooth. One of the keeper pin members includes a retaining spring which snaps into a recess in the tooth and base member to provide positive locking. The other keeper pin member has a hardened retaining hook which engages a lip on the base member. An access port in the top of the tooth permits a chisel to be brought into contact with the top of the retaining hook. The retaining hook is easily severed, using the lip as an anvil, to release the lock when the tooth is to be replaced.

Abstract: A locking assembly to interconnect two adjacent members having axially aligned apertures includes a body member having a bore therethrough, a hinge pin with a locking groove therein passed through both the aligned apertures and the bore of said body, and retaining means positioned in said body and adapted to be received in the locking groove to hold the hinge pin in a preselected axial position. In one form, the retaining means consists of a locking pin driven into a blind end bore partially intersecting said longitudinal bore, the portion of said locking pin passing through said longitudinal bore being received in said locking groove.

Abstract: An earthworking device comprises a support member having a work tool, such as an earthworking tip, detachably mounted on a forward end thereof. A pin is disposed in aligned bores formed through the support member and the work tool and an annular replaceable cartridge circumvents the pin to retain it in position. The cartridge comprises a housing having an annular elastomeric member secured therein and circumventing the pin in frictional engagement therewith.

Abstract: A needle case and a yoke are respectively formed on their surfaces to be joined together with a key and a keyway which are so shaped as to provide a clearance for receiving a wedge of suitable shape. When driven into the clearance thus provided in the keyway between the needle case and the yoke fastened together, the wedge tightly holds them together in intimate contact with each other.

Abstract: A releasable lock for an excavating tooth employing a pin and plug wherein each of these elements is equipped with a plurality of angularly related planar surfaces arranged to provide alternating crests and valleys.

Abstract: A rotating clutch of a vehicle has a plurality of clutch discs positioned between a clutch piston and a base element. A means is provided for connecting the clutch piston to the base element for rotation one with the other as a unit and movement of the clutch piston in directions toward and from the base element and intervening clutch discs.

Abstract: Retaining means for an earthworking tip member including a wire spring member bonded into a washer shaped member of resilient material. The means also include a partially cylindrical partially flat surfaced retaining bar member having grooves for receiving portions of the wire spring member within the open central portion of the washer shaped resilient member. The resilient member is received within a recessed portion of an adapter or shank upon which the earthworking tip member is retained. Upon engagement with the grooves in the bar member, the wire spring means and the resilient member tend to rotate the retaining bar to lock the bar member in place from firm retention of the tip member during use. The retention means is also selectively releasable when desired for removal thereof and release of the tip member.

Abstract: A screw type connection for rigidly mounting a piston on a rod and securing the connection. There is a pair of cooperating aligned slots in the outer piston and the inner rod. A locking member is located conjointly in the slots and a retainer member is provided to keep the locking member in position during operation.

Abstract: An earthworking device comprises an adapter having a tip detachably mounted on a forward end thereof. A flat pin of rectangular cross section, disposed in aligned bores formed through the adapter and the tip, is held in place by a triangularly shaped spring clip which straddles notches formed on the pin.

Abstract: A locking device for releasably fastening parts to rotors of fluid flow machines, the base portions of the parts to be secured fitting in a form-locking manner in at least approximately axially extending fixing slots provided at the circumference of the rotor, the locking device including fixing elements which can be inserted into depression means extending transversely with respect to the axially extending fixing slots and provided in the rotor and into recesses provided in the base portions of the parts to be secured. The depression means are provided at the region of the axially extending fixing slots and divide the flanks of each such axially extending fixing slot into approximately equal parts and the recesses provided in the base portions of the parts to be secured in the assembled condition of such parts coincide with the depression means.

Abstract: A key retaining device includes an elongated cylindrical shaft with a notch formed therein, a tubular member journalled on the shaft and having a slot formed therethrough which is aligned with the notch, a key insertable in the notch and slot for providing a torque transmitting couple between the shaft and the tubular member, and a key retaining mechanism anchorably secured to the tubular member for holding the key in its locked condition and for transferring force across the slot in the tubular member upon the transmittal of torque between the shaft and tubular member.

Abstract: A means for coupling a sleeve or hub to a shaft utilizing a spring retaining clip having a centrally located resilient loop whose diameter is slightly larger than the diameter of a blind locating hole formed in the shaft. The spring retaining clip is provided with oppositely extending arms which engage a longitudinal keyway in the sleeve and the ends of the arms retain the sleeve longitudinally of the shaft.

Abstract: An earthworking device comprises a support member having a work tool, such as an earthworking tip, detachably mounted on a forward end thereof. A pin is disposed in aligned bores formed through the support member and the work tool and a spring clip straddles the pin in locked engagement therewith. The spring clip is substantially encapsulated by an elastomeric member which aids in maintaining the spring clip in frictional engagement with the pin. The spring clip may comprise a "hair pin" or U-shaped configuration.