Abstract: A turbine disk assembly 20 has an extension including arms 34 and a groove 38. Nut 40 engages the groove and bears against the extension. A square head 48 on the nut fits a standard torque multiplying wrench and arms 34provide a reaction so that no adapter tool is required. Groove 38 permits pulling the disk assembly by use of the nut, and also allows sleeve 50 to hold the nut from loosening.

Abstract: A power turbine and first stage gear reduction assembly for a gas coupled gas turbine engine includes a first stage reduction gear, a tubular pinion shaft carrying a first stage pinion gear, and a power turbine shaft having a power turbine at a turbine end thereof. The first stage pinion gear and the first stage reduction gear are straddle mounted on an engine block of the gas turbine engine for rotation about parallel primary and secondary axes of the engine, respectively, and in meshing engagement. The power turbine shaft is aligned on the primary axis with a power transfer end thereof within and connected to the pinion shaft through a self-holding taper connection so that the power transfer end of the pinion shaft is supported on the engine block for rotation about the primary axis.

Abstract: The invention relates to a device for tubes or rods provided with tapped tips.It comprises a hollow hub (1) comprising a plurality of holes (2, 3) and at least two bolts (7), each having a thread (10, 11) at each of its ends, each bolt going through one of the holes (2) and having its thread (11) interior to the hub screwed to a nut (12) and its outside thread (10) screwed to tip (9) of one of the tubes or rods (4), one of holes (3) having dimensions greater than those of the nuts to allow the introduction of the nuts into the hub, locking means (14) being provided to assure the locking of each bolt on the corresponding tip.

Abstract: A support pin system (10) for fastening nuclear reactor guide tube flanges (14) to a nuclear reactor upper core plate (12) includes a support pin (16) having a lower portion (20) frictionally disposed within the upper core plate (12), while an upper section (24) is disposed within a through-bore (22) of the guide tube flange (14). The support pin (16) includes a threaded region (30) upon which is threadedly mounted a nut (32). In order to prevent retrograde rotation of the nut (32) relative to the support pin (16), a locking cap (46) is mounted upon the nut (32) and support pin (16) such that first crimped sections (48) are engaged within apertures (44) defined within the nut (32), while second crimped sections (54) are engaged within longitudinal grooves (50) defined upon the external surface of the support pin (16).

Abstract: A shaft coupling assembly particularly intended for use with a taper shaft utilizes a tapered inner bore having an internally threaded portion for receipt of a torque applying jacking plug, and one or more impact receiving striking surfaces to facilitate removal of the shaft coupling from a shaft. The contemporaneous application of torque to the coupling through the jacking plug and impact to the coupling through the striking surfaces breaks the coupling loose from the taper shaft, even in situations where there is only limited space in which to deliver impact blows.

Abstract: The liner used in the combustor and other components is fabricated from a cylindrical shell and segmented panels attached to the shell. The attachment includes a self-locking nut and flexible bushing mounted on a post extending from the panel to protrude through a hole formed in a shell, thus permitting assembly in a limited space.

Abstract: A gear wheel shaft assembly in which the gear wheel (4) is pressed against an end plane (8) of a shaft (1) by a central bolt (5) through the gear wheel. The end plane is situated at a smaller radius than a shaft bearing (2). The cooperating surfaces (8,9) may be sand blasted.

Abstract: A marine propeller shaft/key assembly in which a keyway formed in the shaft is provided with a perpendicular rounded forward end wall. The key, which transmits rotational forces between the propeller and the propeller shaft, is provided with a rounded perpendicular forward end which matingly engages the forward end of the keyway. The rounded perpendicular end of the keyway forms a stop which precludes axial forward movement of the key in the keyway.

Abstract: A railroad vehicle end-of-car center coupler includes a telescopic energy absorber comprising a hollow cylindrical plunger in a cylinder having one closed end. The plunger has an aperture in its inner end wall. A perforated metering tube is fixed in the closed end wall by a special fixing arrangement. It projects through the aperture and carries an annular piston head which slides in the bore of the plunger. A floating piston divides the interior of the plunger into a gas space and a liquid chamber. Four direct acting pressure relief valves are mounted in the piston head. Conduits through the tube connect their inlets to respective ones of four axially-spaced ports in the outer surface of the tube so that they all communicate with the annular chamber that surrounds the tube within the plunger when the absorber is compressed and so that they are progressively cut-off from such communication during the final stages of extension of the absorber.

Abstract: A reel carrier for attachment to power equipment such as fork lift vehicles or overhead hoist cranes removably mountable upon the fork lift or holding coupling elements thereof and having a frame of generally horizontal rectangular configuration with downwardly depending arms attached thereto is disclosed. The arms are adapted on a U-shaped, hook-like lower end to receive and retain an axle designed to engage and retain the reels to be carried by the apparatus. Bracing members and a cantilever rigidifying support attached to the frame are disclosed. The arms are taught to be adjustable to accommodate the various sized and numbers of reels to be carried by the device. Alternate embodiments are disclosed for supporting the reels in an elevated position for traversal over hilly terrain.

Abstract: An arrangement and method for rotation-secure mounting of a machine on a journal having a threaded portion, the machine element and journal having tooth surfaces which define an annular space therebetween. A thin-walled sleeve made of plastically deformable material and having a wall thickness smaller than the height of the annular space is arranged in the annular space and then is plastically deformed to fill the annular space during tightening of the nut. The sleeve material plastically flows into the interstitial spaces between the tooth surfaces of the machine element and the journal, thereby securing the machine element against rotation relative to the journal.

Abstract: An arrangement for fastening a roll ring (5) to an overhung roll shaft (1) by means of a taper sleeve (8) which transmits essentially the entire torque and which is loaded axially by a spring (43) supported on an abutment (47) adjustable on the free end of the roll shaft. The roll ring can be exchanged easily because of a cylinder part (21) arranged radially within the spring. This cylinder part forms a first annular cylinder space (40) for prestressing the spring, with which it interacts via a flange, and a second cylinder space (22) for drawing off the taper sleeve, to which it is connected via engagement means (28). The spring and the hydraulic devices can remain in place when a roll ring is assembled and removed, because their outside diameter is less than the bore of the roll ring.

Abstract: A spindle nut remains attached to a dye spindle for repeated dye operations and includes radially projecting cam surfaces for successively guiding and locking a lock ring against outward movement relative to the spindle nut at the beginning of successive dye operations. A pressure plate engages the outermost yarn package on the dye spindle and a tube is fixed to the pressure plate and extends outwardly about the spindle toward the lock ring at the beginning of each dye operation, terminating in spaced relation from the lock ring. The pressure obtained during each successive dye operation moves the pressure plate outwardly until the tube engages the lock ring to hold the yarn packages on the spindle during dyeing.

Abstract: In the invention, a noncylindrical sleeve deforms when a cylindrical nut is threaded into it. The deformation inhibits rotation of the nut because the sleeve is restrained against rotation.

Abstract: A connector for connecting a base and column of a microphone stand or the like. The connector comprises a cylindric male member having a first end portion adapted for connection to the column and a second end portion having an external annular groove therein. A retaining spring carried in the groove is compressible from an expanded configuration wherein it projects partially out of the groove to a compressed configuration wherein it lies entirely within the groove. The connector further includes a female member adapted for connection to the base of the microphone stand. The female member has a bore therethrough sized to receive the second end portion of the male member with relatively minimal clearance. The length of the bore is only slightly less than the distance the groove is spaced from the first end portion of the male member.

Abstract: A tapered shaft retention apparatus is used with a shaft having a shoulder, a cylindrical surface, a smooth conically tapered surface, and an annular member such as an inner race of a bearing assembly mounted on the cylindrical surface. A sleeve is mounted on the shaft with an adjustment nut screwthreadably mounted thereon, and an internally tapered hub is mounted on the tapered surface in abutment with the nut with a preselected press fit. This assures the transmission of torque through the hub and positions the bearing assembly on the shaft. During assembly the hub is initially installed at an ambient temperature and the adjustment nut set at a preselected clearance therefrom, the hub is then removed and thermally expanded and reinstalled in abutment with the nut to establish the desired press fit.

Abstract: A device comprising a ring coupled on its inside surface to a steering shaft and coupled on its outside surface to a member such as the hub of a steering wheel, the ring being adapted to be displaced in translation by means of a control member, at least one of the couplings being adapted to determine in addition to translation of the ring angular displacement of the hub relative to the steering column, the control member comprising a screw with its axis parallel to the rotation axes of the members and which, by cooperation with the ring on the one hand and the hub on the other hand, is adapted to bring about translation of the ring by virtue of commanded rotation.

Abstract: A polymeric component (1) having a bore (2) to receive a shaft (3), the component (1) having, in the zone (4) around the bore (2), substantially plane and parallel end faces disposed perpendicular to the bore axis, the component being clamped between substantially radial abutment surfaces (5,6) of the shaft (3), characterized in that a number of axially continuous metal pins (7) distributed over the periphery are disposed in the zone (4) around the bore (2) and bear by their ends on the abutment surfaces (5,6) and a method of producing the same.

Abstract: The valve is particularly designed compatible for use with toxic or highly flammable fluids. It has a hard valve stem tip, such as tungsten carbide which is pushed longitudinally against the valve seat and not rotated into sealing position. The valve is provided with a backseat threaded to the valve body so that if the bonnet or packing nut is very seriously abused by the operator even to the extent of twisting or breaking, the valve will not blow out toxic or flammable fluid. Most of the parts of the valve are made of stainless steel and provisions are made for lubricating the working parts of the valve. Notches in the valve stem and packing nut provide for a safe clean break of these parts in the event they are over stressed.

Abstract: A barbell-like exercise device having an elongated bar of the type adapted to carry interchangeable weights. The bar is provided with grooved end portions and spaced apart radially enlarged protuberances against which the weights are held by clamping collars. The clamping collars include threadably interconnected cylindrical members which carry radially movable locking members which are adapted to be brought into locking engagement with the grooves in the bar upon relative rotation of the cylindrical members.

Abstract: In a torque transmitting assembly including a driven member and a driving member, one having teeth thereon extending parallel to the rotational axis and the other having teeth thereon extending obliquely to the rotational axis, an annular member is interposed which also has teeth which are parallel to the rotational axis and oblique to the rotational axis for engaging with the corresponding teeth of the driving and driven members in order to place them in torque transmitting engagement with each other. The annular member is formed from a deformable metallic material and the obliquely extending teeth extend relative to the parallel teeth at an angle of between 15.degree. and 45.degree..

Abstract: In a steering column for a motor vehicle steering mechanism, a tubular first member and a second member are arranged in coaxial and partly coextensive relation. The second member fits into the first member. At least the first member is deformed transversely of the axial direction into gripping surface contact with the second member so that the two members rotate as a unit about their co-axes when the steering column is turned without any axial movement between them up to a given level of applied axial force. Above the given level the members can telescope one into the other in the event of a collision.

Abstract: Articles of furniture are constructed of a unique rigid assembly of rods, rod caps, posts and rigid panels in an inter-locking relationship. A pair of rods nest in parallel coplanar grooves in top or top and bottom surfaces of the rigid panel, with the ends of the rods inserted into holes in supporting posts. Rod caps are threaded onto matching threaded ends of the rods to secure the rods to the posts. The rods are secured against disalignment from the matching grooves in the rigid panel and prevent rotation of the panel. The posts can be slotted to receive the panel to create the appearance of a smooth end. Various articles of furniture can be assembled from the component parts, including tables, chairs, chests, cabinets, etc.

Abstract: A method and apparatus for making an axially adjustable connection between a clutch shaft and an armature assembly to enable axial adjusting movement of the armature plate relative the inner body magnetic pole face to precisely set the air gap spacing through which an electromagnetic coil attracts the armature plate into frictional driving engagement with the inner body pole face. The hub of the armature assembly is placed upon the clutch shaft and a feeler gage is positioned between the pole face and the armature plate to establish the desired air gap spacing. An adjusting nut is threadedly advanced along a thread of the clutch shaft for progressive axial advance in the direction toward the inner body and engages the hub to maintain the armature assembly against air gap increasing movement away from the pole face.

Abstract: A force multiplying and locking arrangement is disclosed to lock, for example, a cutting tool to a spindle. It comprises main body arranged to be threadably mounted on a spindle, said main body having a pressure ring at its forward aspect mounted to accommodate movement longitudinally of the arrangement and to inhibit movement rotationally of the arrangement. A cavity is defined by said pressure ring and said main body and includes an inclined plane. The cavity has a plurality of spherical balls disposed therein. Said main body is peripherally threaded to accommodate the threadable mounting of a compression ring having, at its forward aspect, a conical inclined plane overlying the cavity and the first mentioned inclined plane. Rotation of the compression ring forces the spherical balls into the cavity engaging the inclined planes and the pressure ring and greatly multiplying the force for locking the device. Reverse rotation of the compression ring releases the locking force.

Abstract: An impeller is assembled onto a turboshaft such that the impeller is deformed at its end walls so as to deform the inner wall of the hole of the impeller against the shaft such that the clearance between the shaft and the hole of the impeller is reduced to zero, thereby, preventing bending or offsetting of the shaft relative to the impeller. For causing the deformation of the shaft, washers with a circular projection are disposed on both sides of the impeller, with the projection facing the end walls of the impeller. The washers and the impeller are clamped by a nut which is screwed to the threaded end of the shaft, resulting in the projection being forced into the end wall of the impeller, thereby deforming the impeller.

Abstract: A centerless grinder comprising a machine frame including bearings for supporting a shaft and a portion having a bore defined therein, a regulating wheelhead driving including a main drive shaft including a first shaft portion adapted to be supported by the bearings, a second threaded shaft portion axially adjacent the first shaft portion, and a third shaft portion extending through the bore, the third portion axially adjacent the second threaded portion and tapered inwardly toward the second shaft portion, a clamping ring having a threaded inner diameter for threadedly engaging with the second threaded shaft portion, and a plurality of holes defined in the outer diameter thereof for engagement by a suitable tool for rotating the clamping ring, a drive coupling having a tapered bore defining a surface for mating engagement with the tapered third shaft portion, and a threaded outer diameter, and drive lugs on the end remote from the first shaft portion, and a locking ring having a threaded inner diameter for t

Abstract: An adjusting system comprising two pivot device 6 and 7 which are symmetrical and have extending therethrough means defining a stepped central aperture whose dimension increases from the interior of the seat structure to the exterior of the latter. A rod 10 which is extended at each end by a square-sectioned bar 23 is slidably mounted in the apertures of the two pivot devices and is fitted at one end in a sleeve rigid with a control element 30. A locking hairpin element locks the control member to the rod but may be withdrawn at any time so as to permit reversing the direction in which the seat structure is positioned.

Abstract: In an assembly including components clamped together and in which one or both of the components is subject to a relatively high and variable tensile stress, fretting due to vibration at abutting surfaces of the components can start cracks in the surfaces which is then accentuated in the stressed surface.FIG. 1 of the specification shows a fan turbine rotor disc 4 clamped on a shaft 2 by nut 12 and interposed between confronting surfaces 14 and 16 on the disc and an adjacent bearing is a stress-reducing collar 6 which is slotted at 18 to define struts 20 extending between the surfaces. The struts 20 transmit the clamping load while allowing torsional flexibility to reduce the shear stress and hence fretting between contacting surfaces.In an alternative embodiment the surfaces themselves may be slotted which gives the added advantage that the tensile stress in the surfaces can be reduced or eliminated.

Abstract: An adapter or machine tool holder for cutters and the like and having a centrally disposed flanged piece with a support means extending axially therefrom in one direction and a hub member axially projecting from the flanged piece in the other direction, abutment member or members extending from the surface of the flanged piece adjacent the hub for engaging a load element such as a cutter and the like for retaining the load element in engagement and preventing the load element from rotating on the holder independently thereof.

Abstract: An annular composite washer assembly provides a "soft" mount for a tool element subassembly mounted on the threaded output spindle of a portable grinder or other power tool. The composite washer includes a pair of flat annular washers and a molded body therebetween. The body has integrally-molded inner and outer annular bands joined integrally with the inner and outer diameters of the respective washers. A first pair of blind axial pockets, diametrically opposed to one another, extends through the first washer and the body and terminates at the second washer. A second pair of blind axial pockets, diametrically opposed to one another and shifted circumferentially with respect to the first pair of blind axial pockets (preferably by ninety degrees) extends through the second washer, through the body, and terminates at the first washer.

Abstract: A drive apparatus including a driving section and a driven section interconnected by a flexible belt which passes over pulley members respectively associated with each of the driving and driven sections. At least one of the driving and driven sections comprises a housing, a central shaft section mounted for rotation within the housing, the central shaft section having a gear assembly provided on a central portion thereof for rotation therewith, and first flange means provided on at least one of the end portions thereof. At least one lateral shaft section is provided having a pulley member mounted thereon for rotation therewith, the lateral shaft section having second flange means provided on one of its end portions. The lateral shaft section is removably connected to the central shaft section by means of connector elements interconnecting said first and second flange means.

Abstract: A stud anchor is provided for securing to an associated mounting bracket a non-round hollow extension having planar inner wall surfaces which are parallel to a longitudinal axis of the extension. The stud anchor comprises an expandable anchor member having a shank portion and a head with the head comprising a plurality of resiliently deformable segments. The segments each include an outer surface which is biased into frictional contact with an associated inner wall surface of the extension securing the extension to the stud anchor.

Abstract: A support assembly for a drive vehicle has an outer race for mounting to a suspension for the wheel and an inner race with a removable end section which carries an annular track for roller bodies supported in position therein by a spacer cage, the removable section being mounted on a journal to which it is nonrotatably and immovably fixed by a locking ring assembly which engages simultaneously end surfaces of both the journal and the inner race end section.

Abstract: A mounting structure for mounting an automobile antenna, shaft, mirror or other device within a hole in a support surface such as a fender, at various angles to such support surface, comprises a base which partially passes through the hole, a device-supporting bushing which partially passes through the base, a clamping nut above, and a retainer below, the support surface. The bushing has engagement means above the support surface to mate with the clamping nut and stop means below the support surface against which the retainer pivots and bears. The base has a central aperture receiving the bushing, which can swing through various angles. A spherical upper bearing surface on the base mates with the clamping nut, and includes a flange bearing against the upper support surface. A toothed lower surface and a pair of legs extend downwardly from the base and have inner surfaces parallel to a given plane.

Abstract: A motor-pump aggregate whose pump is a glandless centrifugal pump and is intended for use in a nuclear reactor plant has hollow coaxial pump and motor shafts which are sealingly coupled to each other. To this end, the first end portion of the pump shaft extends into the adjacent first end portion of the motor shaft and has an external conical shoulder for engagement with an internal conical seat of the first end portion of the motor shaft. A feather holds the first end portions against rotation relative to one another, and the shoulder is urged against the seat by a pair of threaded connectors one of which is anchored in a disc-shaped member in the region of the second end portion of the motor shaft and the other of which is anchored in the first end portion of the pump shaft. The disc-shaped member and the second end portion of the motor shaft have mating ring gears to ensure accurate and a reproducible centering.

Abstract: An improved centrifugal pump protected against reverse rotation injury. The pump has an impeller mounted upon a pump shaft within a casing. The impeller has a central hub mounted over a threaded portion on the shaft and seated against a shoulder. A tubular nut mounts onto the threaded portion of the shaft and within the hub of the impeller. A flange on the nut seats on the hub. Offcenter axial pins are secured in the hub and extend into openings in the flange to interconnect drivingly the impeller and pump shaft. Upon undesired reverse rotation of the pump shaft, the nut unthreads from the pump shaft until the pins withdraw from openings in the flange. Then, the nut spins off the shaft. Now, the pump shaft can rotate safely within the stationary impeller.

Abstract: Mounting apparatus for retaining a cylindrical member with respect to a first member by providing a circumferential groove only part way around the cylindrical member to extend through the aperture in the first member and providing an externally threaded clip member having an internal cavity to fit over the end of the cylindrical member with circumferential convex inwardly extending ridges on the clip member fitting within the grooves on the cylindrical member preventing rotation of the clip member and a nut member internally threaded to cooperate with the clip member in holding the cylindrical member within the aperture of the first member.

Abstract: Disclosed is an improved ceramic heat recovery wheel driven on a shaft containing a metal hub which may be driven without slippage between the wheel and the hub. The wheel includes a splined metal shaft which mates with the disk including a plurality of radially extending keys equi-angularly spaced about its circumference. The ceramic disk includes an equal plurality of radially extending keyways which mate with the keys. In one embodiment, the keys are situated on only one side of the bore of the ceramic disk and the keyways do not extend through the bore. On the opposite face of the disk, a retainer plate surrounds the shaft. An axial force is applied to the retainer plate for restraining movement of the wheel in the axial direction.

Abstract: A core clamp mechanism serves to grip a core on a winder shaft by means of a plurality of ring elements and an expandable elastomer tube. A spacer sleeve abuts at one end with the free end of the core and receives, at its other end, a locking disc in preformed engagement spaces which cooperate with lugs formed on the disc. The elastomer tube is positioned upstream of the disc and supplied with air pressure for expansion of the tube against the disc which serves to compress the sleeve against the core. Shrinkage and other adjustments during the clamping operation are automatically accommodated by axial expansion of the tube under pressure. To remove a wound core, pressure is released through a valve from the tube and the disc moved clear from engagement with the sleeve. Cutouts corresponding to the disc lugs are formed on the sleeve so that, by aligning the cutouts with the disc lugs, the sleeve can be pulled off the shaft and the core removed and replaced.

Abstract: Means to mount an element to be powered on a drive shaft are shown. The eent to be powered fits against a shoulder on the shaft. A retainer ring is next slipped onto the shaft against the element, and a snap ring is put in place in a groove in the shaft. Three plugs in the retainer ring are screwed against the element to clamp the assembly longitudinally between the shoulder and the snap ring.

Abstract: Apparatus is disclosed for securing a wheel and shaft which comprises a collar rigidly mounted to the shaft having an annular peripheral surface formed with radially spaced recesses, and a ring having an annular inner surface formed with radially spaced projections keyed for removable placement within the collar recesses. The apparatus further comprises means for releasibly coupling the ring with the wheel when positioned about the collar.

Abstract: A connection between a shaft and a component such as a gear, fan impeller, rank arm, etc, wherein the shaft is provided with axially spaced abutments to sandwich the component against axial displacement along the shaft surface. At least one of the shaft abutments is acutely angled to the shaft axis so that the abutments cooperatively form a wedge-containment system; the component material between the spaced abutments is wedged against rotation around the shaft.

Abstract: Apparatus for mounting a rotatable component on a rotating shaft using a non-machined torque transmitting intermediate hub member is disclosed. The hub member makes torque transmitting contact with the drive shaft and transmits that torque to the rotatable component through frictional contact at a taper on the drive shaft and at a recessed shoulder of the hub as well as by an external key on the hub periphery and a matching cut-out formed in the rotatable member. There is also a keyway and key between the drive shaft and hub for accurate alignment in assembly and disassembly. A plurality of narrow longitudinally extending rib members are integral with and are supported on the other peripheral surface of the hub member whereby the rotatable member when it is seated against the shoulder on the hub member for the first time mechanically distorts the rib members from their original shape to provide a secure but releasable fit between the hub member and the rotatable component.

Abstract: A camshaft post assembly is mounted onto an axial end of a camshaft and axially extends therebeyond. The camshaft post has an outwardly extending rim which has a sprocket ring mounted thereon and an eccentric pilot surface with a fuel pump cam mounted thereon and at its outer axially end a helical distributor gear frictionally locked thereon. The cam post has internal passages for lubricant which allows an oil pump to pumpoil therethrough which passes the oil through the camshaft, through the cam post, and through outlets which centrifugally spray oil onto the sprocket ring and distributor gear.

Abstract: The joint is formed between two mutually perpendicular tubes by seating a washer in one tube, a nut within the other tube and by passing a bolt through the washer into threaded engagement with the nut. The resulting joint is hidden from view. A spreader bar is formed by joining the ends of two tubular sections within each other after each section is joined to a tube.

Abstract: A finishing disk hub assembly includes a hub section composed of an internally threaded adapter surrounded by a support pad which section is arranged to be screwed onto a rotary threaded shaft. An annular socket is formed in the end of the adapter, a wall of the socket being provided with a set of spaced-apart radial threads. The assembly also includes a locking plate having a set of legs arranged to project through the central opening of a finishing disk into the socket by way of the gaps between the threads. Abutments are provided on the legs which interlock with the adapter threads when the legs are inserted into the adapter socket and the plate is turned through an angle relative to the adapter thereby drawing the plate toward the adapter and clamping the disk between the adapter and the plate.

Abstract: An output gear of a power transmission is drivably connected through an idler gear to an input gear of a final drive unit having a differential. The idler gear is mounted through a pair of tapered roller bearings on a sleeve shaft which is supported by opposite two walls between which the idler gear is located. An end portion of the sleeve shaft is adjustably received within a recess formed at the inner surface of one of the walls in a manner that a bolt securing the sleeve shaft is screwed into a boss formed in the recess of the wall.

Abstract: Apparatus for variably positioning and securing car radio units and the like, including a mounting shaft securable on a front chassis plate in a number of different positions spaced horizontally, vertically and diagonally from each other. A bracket member has an opening to receive the shaft and a plurality of legs extend therefrom for insertion into different sets of alignment holes on the front chassis plate.

Abstract: A rotary harrow has soil working members, each of which includes a tine mounting wherein a horizontal support has a holder with a tine at one end, or both ends. Near the top of the fastening portion are one or two recess stops that are engaged by tightening elements to urge the fastening portion in tight engagement within an internal bore of the holder so that tension or compression is exerted on the interfit between bore and fastening portion. The fastening portion can taper upwardly and the bore is shaped with surfaces that conform to the taper of that portion. The tightening elements can be a nut and bolt combination, an externally threaded member or a pivoted cam that is turned with a tool. The fastening portion can have a region of reduced diameter so that it bears on two spaced apart areas of the bore.Additionally, the fastening portion can include a substantially U-shaped recess, which can be engaged by one of the nut and bolt combination or the externally threaded member.