Abstract: The stabilizer, in a preferred embodiment thereof, comprises a generally tubular body which is axially slit, as in the prior art. According to one practice of the invention, the surfaces of the body immediately adjacent to the slit have ribs formed thereon which define bearing surfaces for clamping together, to draw the surfaces into proximity, narrowing the slit, thereby to contract the stabilizer to a constrained dimension approximately eight percent smaller than its free dimension. This is done to facilitate its insertion into an undersized bore. The novel method, then, in an embodiment thereof, comprises contracting an axially slit friction rock stabilizer by engaging the aforesaid ribs (formed thereon) with a tool, to contract the stabilizer to a reduced and constrained, approximately eight percent smaller, cross-sectional dimension, inserting the stabilizer into an undersized bore, and withdrawing the tool.

Abstract: A rectangular channel member has coplanar spaced-apart wall portions defining a slot therebetween and each having a flange extending from the slot inwardly of the channel member and away from the other wall portion at an acute angle. A generally U-shaped connector is disposable within the channel member across the slot and includes rectangular recesses receiving the flanges therein. A threaded fastener engageable with the connector extends through the slot for engagement with a support member, tightening of the fastener causing deformation of the flanges by the connector for wedging the flanges in the connector recesses. The support member may constitute a bracket for coupling the channel member to another channel member, several different bracket constructions being disclosed for coupling to different types of channel members and for different orientations of the channel members.

Abstract: Cold gas is used to freeze liquid in a pipe without directly encountering the pipe wall, which is surrounded and reinforced by a clamp assembly within a housing through which the gas flows. Gas temperature at an outlet from the housing is monitored for control of the rate of gas to provide a uniform cool down rate, avoiding thermal shock to the pipe.

Abstract: The present invention provides a device for assembling tools on a wheel. Stop pins fixed to the wheel cooperate with radial wedges to maintain tool-bearing sectors in a disc formation on the wheel. The pins and the radial wedges are located between adjacent sectors alternatively, with one wedge being positioned between two adjacent faces or ends of adjacent sectors to urge the other ends of the sectors into engagement with two of the pins.

Abstract: The stabilizer, according to a preferred embodiment thereof, comprises a generally tubular body which is axially slit, according to the prior art. According to the invention, the surfaces of the body immediately adjacent to the slit have ribs formed thereon which define bearing surfaces for clamping together, to draw the surfaces together, closing the slit, and thereby contract the stabilizer to facilitate its insertion into an undersized bore. The novel method, then, comprises contracting an axially slit friction rock stabilizer by engaging the aforesaid ribs (formed thereon) with a tool, to contract the stabilizer to a reduced and constrained cross-sectional dimension, inserting the stabilizer into an undersized bore, and releasing it therein, in order that it may engage and stabilize the surface of the bore (of the earth structure).

Abstract: A ball and socket connector. A socket frame includes a pair of half tubes welded together with the opposite distal ends forming sockets bearingly receiving ball-shaped ends of a pair of elements. The half tubes are connected together at a location remote from the sockets thereby spring-biasing the socket-forming members against the ball-shaped ends. Planar surfaces are provided within each socket allowing the ball-shaped ends to contact the half tubes along a line of contact.

Abstract: A boss for mounting on a shaft comprising a discontinuous ring member, with a link bridging the discontinuity, a pivotable lever, and an eccentric drive connection between the lever and the link, whereby pivoting of the lever produces relative movement between the link and at least one side of the discontinuity to alter the size thereof to facilitate clamping and unclamping of the boss on the shaft. In one embodiment a second eccentric drive connection is provided between the said other end of the link and the ring member. The second eccentric drive connection is also adjustable to allow for presetting the tension in the link. In another embodiment the effective length of the link is adjustable to allow for presetting the tension in the link. An overcenter mechanism retains the lever in its locking position.

Abstract: An improved centralizer includes upper and lower collars with a plurality of spring members attached at upper and lower ends to said collars. Each of said collars includes a first and second arcuate collar portion. A first peripheral end portion of said first collar portion includes a radially outward projecting channel. A second peripheral end portion of said second arcuate collar portion includes a radially inward projecting channel which overlaps with said outward projecting channel to define an axially extending hole which receives a latch pin. A novel connection between the collars and spring members is also provided. The collars include a continuous integrally formed peripherally extending bar spaced radially outward from a radially outer surface of the collars, upper and lower peripheral slots adjacent upper and lower edges of the bar, and an upper compression bearing surface.

Abstract: A substantially annular ring having a bore sufficiently large to engage each of two oscillatory shafts, the ring having a radial slot through to the bore and a circumferential slot through to the bore running from the radial slot to a point on the ring opposite the radial slot, thereby forming two semi-annular, rigid spring arms, each having one free end, a tapered key secured in a transverse slot on the inner surface of the central portion of each of the spring arms, the keys engaging tapered keyseats on the ends of each of the shafts, and means for detachably clamping the free ends of each of the spring arms to the ring across the radial slot, thereby independently locking each of the shafts into the coupling.In an alternative embodiment, the annular ring has a second radial slot through to the bore at the point on the ring opposite the other radial slot, forming the spring arms into completely detachable coupling segments.

Abstract: A jointing device including arms which connect two elements together. The arms are elongated and of generally rectangular cross-section. One of the elements includes flanges with lips extending along the edges of the flanges and the other of the elements forms a clip. The lips form a mouth. Each arm is grooved near one end, the grooves extending transversely across one of the elongated faces of the respective arm. Said one end of each arm is bounded by a rolling surface which intersects said one surface of each arm and merges with the opposed surface. With the rolling surfaces in engagement, the arms diverge from said one end and, in this condition, can be inserted into, and removed from, said mouth. When the outer ends of the arms are moved together from this diverging position, the arms are brought into back-to-back relationship with the opposed surfaces juxtaposed. The lips are received in the grooves while the arms are held in back-to-back relationship in the mouth.

Abstract: The expandable annular locking device is particularly applicable for use on mill roll necks, shaft and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll meck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of arcuate members, each having a pair of flat surfaces. Each arcuate member portends an arc less than 180.degree. and their one ends are pivotally interconnected by an arcuate link whose opposite ends are nested within opposed slots of said members and pivoted thereto.

Abstract: This invention relates to a two piece plastic idler pulley formed of identical portions including a hub, a web and a rim with identical fastening means on the two half portions which permit the two portions to be joined together as the idler pulley. The hub of the idler pulley has a through bore which is inversely tapered whereby the hub will flex when subjected to a workload and will capture the lubricant internally of the bore. The rim carries diverging means which extend radially and laterally outwardly from the rim to insure proper seating of power transmission means such as a belt. The diverging means also is capable of engaging the power transmission belt when it is inadvertently seated on the hub to move the belt into seated relationship on the rim for proper operation of the device.

Abstract: An assembly element, inter alia for scaffolding, used (a) for clamping a cylindrical element after engaging axially or laterally on the cylindrical element and (b) for securing one or more transverse elements on to the cylindrical element, said assembly element comprising two half-rings interconnected by two pins, each half-ring having a deformable inner part adapted to bear against the surface of the cylindrical element and an outer part adapted to co-operate with the inner part to bound spaces to receive the ends of one or more transverse elements, at least one of the two pins being adapted to tighten the two half-rings when the pin is moved with respect thereto.

Abstract: The expandable annular locking device is particularly applicable for use on mill roll necks, shafts and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll neck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of arcuate members, each having a pair of flat surfaces. When the arcuate members are disposed about a shaft within an annular recess and a preselected spacer sleeve is snugly interposed between the annular locking device and the sleeve-like elements, bearings or the like, and the locking devices are tightly secured to the shaft, the sleeve-like elements are retained against the abutment so as to locate and maintain the various elements on the shaft in the required working relationship.

Abstract: The connector hardware portion of each percussive musical instrument or accessory comprises strong, practical, rugged, and economical connector parts, one of which is a clamp adapted to grip solidly onto a tube at any desired rotated and axial position, and the other (second) of which is connected to a percussive instrument or accessory portion and is adapted to lock onto the clamp in a way that prevents both rotational and axial shifting relative thereto. The locking is effected in a readily removable manner, as by means including a set screw, and the relationship is such that there can be only one position of the other (second) part relative to the clamp after locking has occurred. Therefore, once the clamp is initially set at a desired rotated and axial position, there is an automatic rotational and axial "indexing" which permits any number of separations and re-connections of the two parts (and of the percussive instrument or accessory) without permitting the locked positions to change.

Abstract: A universal joint assembly having an inner and an outer joint member with torque transmitting means therebetween is formed with a drive shaft attached to the inner joint member within an axially slotted bevelled end portion formed on an extension of the inner joint member. The inner member has threaded means formed on a cylindrical outer wall thereof and by threaded engagement of a nut about the end of the inner member extension, the drive shaft is releasably engaged and clamped in the inner joint member in a manner facilitating this assembly. The outer wall of the inner joint member is also formed with a recess within which one side of a sealing boot may be secured.

Abstract: A stopper lock adapted for application to a culture bottle and positioned to retain the stopper on the culture bottle. The lock includes a pair of lock halves with fastener structure. The lock halves have a configuration permitting their placement on the bottle to engage with the stopper and bottle and to lock the stopper in position in the bottle when the fastener structure couples the lock halves together while permitting access to the stopper with a cannula. The stopper lock is a one time use item which cannot be removed from the bottle except by destruction.

Abstract: A detachable coupling consisting of two mating halves which when detachably interconnected form a ring which is free to rotate but is restrained axially with respect to elements to be connected.

Abstract: Joint for attachment of a snood to a fishing line comprising a split sleeve with end flanges, surrounded by a rotating part shaped as two cylindrical halves of a stud to which the snood is to be attached.

Abstract: An expansion dowel includes a cylindrically shaped axially extending sleeve and a spreader for expanding the sleeve. The sleeve has a leading end and a trailing end and at least one axially extending slot formed in the sleeve. For at least a portion of its length, the slot has oppositely arranged sides converging in the direction of the leading end of the sleeve. The spreader fits into the part of the slot with the converging sides and has complementary converging sides to those in the slot. The spreader includes an impact piece against which impact force can be applied for axially displacing the spreader through the slot and expanding the sleeve.

Abstract: The expandable annular cam-type locking device is particularly applicable for use on mill roll necks, shafts and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll neck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of annular members or segments each having a pair of flat surfaces. One or more circular recesses is located in one surface of each annular member and each recess is provided with an expandible circular cam insert having flat faces. Threaded fastening elements are carried by the annular members and are threadedly connected to the inserts for expanding or moving same relative to the recesses.

Abstract: The invention relates to a member for assembling tubular elements designed to form a two-dimensional or three-dimensional structure. Such member comprises two half-shells which can be nested one on the other, thus defining a passage for a tube of the structure, and having stub tubes onto which the other tubes are to be fitted.

Abstract: A flexible joint for use in suspension systems and the like has a rigid cylindrical member, a resilient bushing encompassing the inner member, a split casing having opposed semi-cylindrical surfaces holding the bushing under compression toward the inner member and secured together in bushing-compressing relation, and rigid extrusion barriers preventing compression induced extrusion of the bushing into partings between the casing parts. Configuration of the extrusion barriers complements the compression loading of the resilient bushing by the surfaces of the casing parts.

Abstract: A shaft clamping device is disclosed comprising an annular collar having a radial through slot. The collar has a recess and a coaxially aligned tapped opening respectively formed on opposite sides of the slot and which cooperate with a clamping screw for expanding or contracting the diameter of a clamping surface defined by the center opening of the collar. The collar recess includes a tapered diameter surface between an enlarged entrance of the recess and a clearance hole therein to provide a clamping screw bearing shoulder for seating a tapered diameter bearing surface of the clamping screw and providing for reduced stress concentration in a clamping collar of increased strength.

Abstract: A generally circular clamp band assembled from a pair of identical clamp band members each having an integral connection formed at one end for cooperation with a like connection on a like member to join a pair of members at one end without the use of additional fasteners.

Abstract: A method for fabricating or joining crossed lengths of wood (e.g., table legs) together. Mating or facing portions of each leg are removed to about half the thickness of the leg at the point of intersection. The legs are then affixed to each other at the matching portions to form a joint therebetween having substantially flush lateral surfaces. The "V" portions (four in number) between the criss-crossed legs are filled with triangular blocks which have a thickness equal to that of the legs. A cover or face piece of wood is then placed over the criss-crossed legs and the triangular blocks.

Abstract: A slide bearing for a shaft absorbing a radial load on the shaft varying in direction, said bearing comprising two or more bearing bushings held in place by means of two bearing caps provided at their boundary surfaces with meshing teeth securing them against relative displacements wherein the bottom of the valley between each pair of adjacent teeth of at least one bearing cap has a groove.

Abstract: A basic mechanism comprising a pair of members which when connected together form a solid unit. Centrally located and passing through the solid member on an axis is an aperture. Formed within each of the solid members is a circular shaped passageway or opening so that when the two members are connected together to form the solid unit, the openings of the two members cooperate to form the shape of a solid torus. The axis of the torus opening coincides with the axis of the aperture. A third member is located within the openings and is movable in respect thereto. With the members connected together to form the solid unit, the third member is movable between the connected together members thereby locking together the connected together members.

Abstract: A retainer for resiliently applying a preload force to a bearing assembly rotatably supporting a shaft has a bore through which the shaft extends and is assembled from a plurality of separable sections. Formed in the wall of the bore are circumferential grooves which define lands therebetween. Similarly, circumferential grooves are formed about the shaft adjacent the end of the bearing assembly. One series of grooves are oblique to the shaft axis so that the respective lands are deflectively engaged when the retainer is radially closed about the shaft. The retainer is advantageously employed to maintain preloads on tapered roller bearings supporting the final drive shafts in heavy earthmoving equipment.

Abstract: The built-up mainshaft has a plurality of eccentric elements secured to an elongated shaft element in end-to-end angular off-set relationship to each other. Each of the eccentric elements has integral cylindrical body and axially extending sleeve-like portions and an axially extending bore therethrough to receive therein the elongated shaft element. Each eccentric element is scored to render the cylindrical body portion thereof deformable in an inward direction toward the shaft element. A clamping means is provided for each eccentric element to coact with the scoring to effect deformation of the associated cylindrical body portion and secure the latter in torque transmitting relationship with the shaft element.

Abstract: A single piece coupling for shafts comprises opposite half sections each with an arcuate recess for engaging one side of two axially aligned shafts. There are also spaces forming a keyway for reception of a conventional key with which the shafts are provided. The half sections are initially formed in a spread apart condition with captive edges secured to each other by a section of the coupling metal forming thereby a hinge. After adjacent ends of the shafts are slid into the coupling to abutting positions free edges of the half sections are bolted together drawing the half sections simultaneously into engagement with the shafts and the key.

Abstract: The present invention comprises an inter-fitting, two-part securing means which holds a flanged end of an elongated cylindrical actuating cable guidance tube in its operative position on a support in a vehicle. The securing means comprises a pair of generally semi-cylindrical body parts which, when assembled, form a through bore for the cable, and guidance tube with opposed recesses in the bore which receive and hold the guidance tube flange. One of the pair of body parts has a flanged end and is inserted through a noncircular hole in the support with the flange clamped against the support. Substantially diametrically outwardly extending ribs on the other end of the one body part are slidingly received in complementary grooves on the other of the pair of body parts. Integral spring finger means locks the pair of body parts in assembled relation.

Abstract: A quick release locking device is provided for adjustably securing a circular tool carrier head about a shaft of a rotary die cutting mechanism in which a cylindrical cam has the camming face of the cylinder undercut and filled with a deformable non-compressible plastic substance to increase the resiliency of the camming face.

Abstract: Electrical terminal connector characterized by a loop-like member comprising parallel legs joined at their ends by bight portions and aligned apertures extending through the legs between ends thereof for receiving a screw adapted to squeeze the legs toward each other. In one version, one end of a wire may be clamped between the legs in the locus between the screw and one bight. In another version, ends of two wires may be clamped, each between the screw and one of the bights.

Abstract: A supporting collar for attachment to a tubular scaffold member having four radially disposed channel-shaped support brackets, said brackets being interconnected so that the open ends thereof are disposed about a circle. Said collar is formed in two hingedly connected parts, the free ends of said two parts being connectible by a nut and bolt device.

Abstract: A demountable structure, for example for forming scaffolding, shelf assemblies or frame assemblies comprises a pair of co-axial spaced connection and support members with a connection element or bracket interposed between the ends of the members. The engaging surfaces of the support members and brackets form frustum cone surfaces and are drawn together and stiffened by a threaded stem passing therethrough.

Abstract: A runner hub for a propeller type hydraulic turbine wherein the hub is constructed of at least a pair of arcuate segments. When the arcuate segments are assembled together, they form a hollow hub. Turnbuckles are provided within the hub attached to opposite hub segments and are adjustable to forcibly hold the hub segments in the assembled position.

Abstract: The missile launching assembly includes a mount tube having a circumferenl tapered continuous groove, a launch tube within the mount tube, a shatterable end closure on the end of the launch tube adapted to be shattered when the missile is launched, a locking device in the form of a single split ring or a plurality of arcuate-shaped ring segments with a cross-section to match the groove taper positioned within the groove and between the mount tube and the flange of the end closure, and one or more circumferentially oriented spreading elements, such as expanding jackscrews fitted into the ring or ring segments for increasing the ring circumference to bring pressure to bear on the closure flange. The launch tube is designed to contain therein in a lengthwise direction the missile to be fired.The mount tube is a permanent part of the vehicle such as a submarine, from which the missile is to be launched.

Abstract: An end fitting for a hawser which reduces the shear stresses generated win the hawser. The hawser is embedded in a tapered plug, which fits within a complementary member which does not surround the tapered plug for its full axial length. As a result of this geometry, the shear stress which results from the combined tensile and compressive stresses within the hawser and plug is reduced thereby allowing a greater tensile load to be exerted upon the hawser.