Abstract: A device for steadying a first balanced rotatable member relative to a second balanced rotatable member. A steadying tool is applied to the first balanced rotatable member while another tool precision torques the second balanced rotatable member. An element having a surface placed against the first balanced rotatable member. The element includes a faceted aperture capable of locking interaction with the steadying tool. The element also includes an axis aperture to permit torquing of the second balance rotatable member with the torquing tool. The element is configured to not disrupt the balance of the first and second balance members. The element may be fixed to the first balanced rotatable member during use.

Abstract: Device for removing a bearing assembly from a shaft including a tapered adapter for securing a bearing assembly to a shaft that includes a radial opening therethrough extending along the length thereof and further defines a groove extending about at least a portion of the circumference of the adapter and being located proximate the large end of the adapter. The device also includes a removal ring with a holding lip for mating with the groove extending about the circumference of the tapered adapter and is provided so as to apply a separating force between the bearing assembly and the removal ring for releasing a bearing assembly from a shaft.

Abstract: The cone-type clamping arrangement is arranged in the intermediate space between the external circumference of a shaft and the internal circumference of the bore of an external member. It comprises a double-cone member, a cone ring arranged on the first cone surface of the double-cone member, and, arranged on the second cone surface of the double-cone member, a cone member which has an axial extension with cylindrical internal circumferential surface, which extension overlaps the cylindrical external circumferential surface of the cone ring and forms an overlap. During clamping, friction only occurs on three surface pairs. During loosening, the cone ring is supported, with a radial circumferential projection, on the flank of a circumferential groove of the double-cone member.

Abstract: A device for mounting and/or dismounting a bearing on a shaft incorporating a tapered clamping sleeve between bearing and shaft and an arrangement for mutual axial displacement of the bearing and clamping sleeve in at least one axial direction, which arrangement incorporates at least one wedge-pointed screw arranged, when being screwed in towards the shaft to cause a mutual displacement in axial direction between the clamping sleeve and the bearing by wedge action. The bearing is situated in a surrounding sleeve-shaped member significant axial space beside the bearing at least on one side. The arrangement for displacement of bearing incorporates at least one radial flange, axially affixed to the clamping sleeve. The wedge-pointed screw is arranged to be screwed in substantially radially through holes in the bearing housing, for exerting the axial wedge force between the flange and an inner race ring of the bearings.

Abstract: A coupling receives a steeply tapered end of a propellor shaft and is secured thereto with a lock nut held in place with a set screw. A housing taper is steeper than known locking tapers to facilitate housing removal. The housing is internally threaded to receive an extractor element which, after lock nut removal, is screwed into the housing for abutment with the end of the propellor shaft with continued advancement of the extractor element resulting in housing separation from the shaft.

Abstract: A screw tightening type connector having a female connector and a male connector fitted in the female connector. The female connector is provided with a female screw body, while a male screw body is provided on the male connector. The male connector is screwed into the female screw body and is tightened whereby the female connector and the male connector are fitted in each other. A rotational-force imparting section is provided for imparting a rotational force to the male screw body. The rotational-force imparting section has a rotary shaft extending in a direction intersected with a fitting direction of the male connector into the female connector. A rotational-force transmitting section is provided for converting the rotational force from the rotational-force imparting section to a rotational force in a direction intersected with the rotary shaft to transmit the rotational force to the male screw body.

Abstract: A taper clamping unit includes a tightening assembly having first and second taper rings, one of which is mounted on a cylindrical bushing. The cylindrical bushing has an end flange which extends opposite projecting portions of a plurality of screws which are used to connect, tighten, and untighten the first and second taper rings to each other. When the screws are loosened, the projections bear against the end flange such that the first and second taper rings are loosened from each other and when the screws are tightened, the projections bear against the first taper ring thereby tightening the first and second taper rings with respect to each other.

Abstract: The invention relates to component connecting fastener especially flange connecting fasteners for the propeller shaft in a motor vehicle. The two flanges 4, 5 contain bores 8, 9 which align with each other. Axially slotted tensioning sleeve 10 is introduced into each bore 8, 9. The tensioning sleeve 10 is axially elongated and radially expanded by tensioning pin 22 driven into bore 12. After completion of the assembly operation, contact face 17 provided at collar 16 is supported on contact face 18 of flange 4, with supporting face 20 being supported on abutment face 21 of further flange 5. In this way it is possible to automate the assembly procedure while requiring less space and achieving a higher compression between flanges 4, 5.

Abstract: Speed reducer, such as a screw conveyor drive, adapted to receive a shaft within a tapered sleeve. The shaft includes a tapered portion adapted for engagement with the corresponding tapered portion of the sleeve on one side of the housing when the shaft is inserted into the bore. On the other side of the housing, a split bushing is provided for receipt within the sleeve, the split bushing including a tapered surface for mating engagement with the tapered surface on the sleeve. A retainer plate is provided that is adapted to be placed on the end of the shaft extending through the bore. The retainer plate has a center hole for receipt of a capscrew through the retainer plate and into the shaft to securely maintain the shaft in place. The retainer plate further has a plurality of holes dimensioned so that the head and shank of screws may extend therethrough and a plurality of holes dimensioned so that only the shank of the screws can extend therethrough.

Abstract: An improved collar assembly adapted for easing the disassembly of stacked members on a shaft subjected to compressive loading is disclosed. The collar assembly includes a pair of collar members which are mounted contiguously abutting one another along a planar angulated interface. One of the collar members defines a bore therethrough configured to closely correspond to the exterior diameter or exterior configuration of the shaft in which the collar assembly is to be mounted. The second collar assembly defines a bore therethrough which is dimensioned to be substantially larger than the shaft exterior configuration in which the assembly is to be mounted. The disparity in the bore sizes permits the second collar to be displaced laterally as well as axially along the shaft with respect to the shaft and along the planar interface of the two-collar members. The two-collar members define the respective exterior engagement surface adapted to engage and otherwise abut against a member stacked on the shaft.

Abstract: The invention concerns expandable fastenings of the kind that includes a conical shaft part (2) and a conical expandable sleeve (4) that is pressed up on the conical part (2) of the shaft (1) in order to fill out and fasten the shaft in a mounting hole. The expandable sleeve (4) is pressed against the cone by a washer (5) and by a nut (11) screwed onto a threaded end portion of the shaft. The washer (5) is on its outside provided with a thread for the threading thereon of a nut part or sealing ring (6). The expandable sleeve (4) and the threaded washer (5) are connected by hooklike flanges so that the sealing ring (6) can also be used to pull out the sleeve from the conical axle part.

Abstract: A skate shoe to which a replacement runner may be rapidly, removably coupled. No manual manipulation of locking devices is required. A first end of the runner is pivotally coupled to the shoe's base via a slot and pin arrangement. The second end of the runner is then pivoted into snap-locking engagement with a locking mechanism in the base of the skate shoe. Finger pressure on the lock mechanism serves to unlatch the runner; and, a spring drives the runner outward from its engagement with the shoe base.

Abstract: A platform trestle or device for use in the construction of stages, tribunes and the like, including a rectangular frame supporting a platform, and operatively releasable support legs which can be inserted and clamped into place in mounting spaces within mounting elements which are fixedly arranged at the corners of the rectangular frame. In order to facilitate the attachment of the support legs to the mounting elements during assembly of the platform device, and to increase the seating stability of the support legs, each of the mounting spaces is fashioned as a wedge-shaped chamber which tapers toward the platform. Each wedge chamber is defined by a pair of adjoining vertical sides and pair of adjoining inclined sides, with each of the inclined sides being inclined with respect to its adjoining inclined side and at least one of the vertical sides.

Abstract: A securing nut apparatus for detachably connecting and clamping a machine component onto a shaft includes a nut hub body having a threaded main bore and a nut outer ring. The nut outer ring cooperates with the nut hub body threadably engaged to the shaft to provide a uniform clamping force to the machine component. A plurality of screws couple the nut outer ring with the nut hub body. A threaded engagement between the screws and threaded openings of the nut hub body forces the nut outer ring therebetween into a high uniform clamping force against the machine component.

Abstract: In blade holding devices sleeves are arranged concentrically about the blade securing screws, in order to relieve the blade securing screws from lateral shearing force components and vertically acting stripping forces resulting, when the blade slide is moved upward, from the friction between the blade and the scrap metal in the feed channel. For the removal of the blade, lateral wearing plates in the feed channel have to be removed. In order to permit the removal of the blade from the holding device without dismantling the wearing plates of the feed channel and, at the same time, retaining the sleeves, a short sleeve is provided, that, in an operational position of said scrap cutter, ascertains form-locking between the blade and the blade slide or the blade support and rests against a long spacing sleeve that is concentrically arranged about a shaft of the blade securing screw and is held by the blade securing nut. The short sleeve is also concentrically arranged about the shaft of the blade securing screw.

Abstract: Handrail drive wheels on escalators and moving walkways are subjected to high stresses due to the pressures which are generated by the drive wheels in order to move the handrails. The operational stresses on the drive wheels require that they be securely mounted on their drive shafts. This mount assembly provides secure wheel-shaft coupling, while enabling the drive wheel to be easily removed from the drive shaft for servicing without the need to use any specialized tools. The wheels are provided with internal jack screws that can be manipulated with an Allen wrench to dislodge the wheel from the drive shaft.

Abstract: To prevent movement of an article along a shaft or a bore, an element engages the article and engages the shaft or bore at locations forming an angle no greater than tan.sup.-1 .mu..The locations of engagement lie in a first plane extending perpendicular to a second plane in which lies the axis of the bore or shaft. A third plane extends perpendicular to the axis. The angle is between the first and third planes. .mu. is the coefficient of friction between the element and the bore or shaft.

Abstract: A latching mechanism for use with a plug-in cartridge or the like. The latching mechanism comprises a body portion; a pair of walls extending from the body portion; a camming portion; and an actuating portion. The walls of the latching mechanism are snap locatable onto pivot pins on a face plate of the plug-in cartridge, or the like, and thereby allow the latching mechanism to pivot on the face plate. Furthermore, the walls of the latching mechanism have apertures which are snap locatable onto detents on the face plate thereby resiliently latching the latching mechanism when it is fully inserted into a cabinet. The camming portion projects from the latching mechanism and is used for engaging a cooperating projection on a cover of the cabinet.

Abstract: The tool for permitting a wrench to turn a harmonic balancer and crank shaft connected to the same. The tool employs a base which may be fixed to the harmonic balancer. The base includes an opening bored through the base to form a cavity. The cavity includes wall portions having a faceted surface and a threaded surface spaced from one another. The threaded member engages the threaded surface of the cavity and extends through the opening into engagement with the crank shaft.

Abstract: A fastener and tightening device for exerting force and equalization of force upon the nut or head of a bolt or threaded stud. The device is comprised of a shank fitting through a support member within an abutment head adapted to be drawn up tight against the support member. A plurality of jack bolts are threadedly engageable with holes in the head and are adapted to be tightened to exert pressure against the support member. Separate ball members are positioned between the jack bolts and a wear plate on the support member to minimize friction and provide for force equalization to counteract any off center alignment.

Abstract: A fastener for use where a predetermined holding force of holding position is to be maintained while the fastener is required to exert a holding force less than the full maximum force it is capable of exerting, the fastener having a shaft portion that threadedly fits into a nut, the shaft portion having an angular cut forming a spring like member, with an outer projecting portion biased toward a surface of the nut for causing a resistance to rotation of the fastener relative to the nut, and wherein the nut may take the form of a thrust collar that receives a number of the fasteners for maintaining a bearing on a journal.

Abstract: A male-female spline coupling between two shafts includes a polymer spline insert removably carried by the female shaft. The spline insert engages with the female shaft in torque transmitting relation and defines a wear resistant spline surface engaging the male shaft to accommodate limited angular and radial misalignment while rotationally transmitting torque therebetween. The coupling includes provision for removal of the spline insert and replacement thereof with a fresh insert with a minimum of tools and in very short time. Tools for both removal and replacement of the spline insert are disclosed.

Abstract: An elbow joint of an industrial robot comprises a first arm part which is yoke-formed at the joint and an end of a second arm part located between the yokes. On the sides of the end of the second arm part which face the respective yokes, bearing seats are provided in which shaft journals are journalled. The shaft journals are connected together by a pull rod, which extends through the end and the shaft journals, and are received in, and extend through, through-holes in the respective yokes. The shaft journals are fixed to the yokes by means of nuts threaded onto the accessible part of the shaft journals on the opposite side of the respective yokes.

Abstract: A quick insert and quick release tool holder for gripping the handle of a tool, or the like. The tool holder has a disk-shaped flexible friction holder with a central aperture for gripping around a tool handle. A release mechanism is operable by the use of only one hand to expand the aperture and release the tool handle.

Abstract: A mounting adapter for a centrifuge includes an internal chamber having a lifting and a locking surface therein. The head of a connecting member is captured in the chamber and is rotatable by a tool insertable through an access bore in opposed angular directions. Rotating the connecting member in one direction brings it into abutting contact with the locking surface to hold tapered surface surfaces on the adapter and on the spindle in locked engagement. Rotation of the connecting member in the opposed direction causes the same to abut against the lifting surface to assist in separating the tapered surface from each other.

Abstract: To prevent movement of an article along a shaft or a bore, an element engages the article and engages the shaft or bore at locations forming an angle no greater than tan.sup.-1 .mu..The locations of engagement lie in a first plane extending perpendicular to a second plane in which lies the axis of the bore or shaft. A third plane extends perpendicular to the axis. The angle is between the first and third planes. .mu. is the coefficient of friction between the element and the bore or shaft.

Abstract: An attachment device is provided by joining a first structural member to the threaded stud of a second structural member by an attaching means which includes a flanged main body that has a tapered portion. A nut tightens the attachment device into an aperture of the first structural member and a removal tool is used to remove the attachment device when desired.

Abstract: A control cable connecting device for connecting the cable of a control cable to an operated device. The control cable connecting device comprises a guide sleeve, an operating member slidably fitted in the guide sleeve, supporting lugs fixed to the outer surface of the guide sleeve with a predetermined space therebetween, a guide block fixedly connected to the extremity of the outer casing of a control cable, a driving member slidably fitted in the guide block and fixed to the free end of the cable of the control cable, and a clip for fastening the guide block to the supporting lugs. The driving member can be connected operatively to the operating member simply by placing the guide block containing the driving member in the space between the supporting lugs, and simply by fastening the guide block to the supporting lugs with the clip. Thus, the control cable connecting device requires a small space for installation and is capable of being assembled easily.

Abstract: A marine drive (1) for a boat (3) includes a longitudinally extending propeller shaft (18, 20) which concentrically carries the hub (21, 22) of a propeller (10, 11) at the aft end of the shaft, with the shaft serving to rotatably drive the hub. The shaft is provided with a threaded outer peripheral portion (48, 36) at its end. The hub is provided with a rearwardly disposed annular flange (44, 32) and an annular rearwardly facing recess (45, 33) having a threaded outer periphery (47, 35). A dual-threaded nut (49, 37) is removably disposed within the hub recess. The outer nut threads engage the hub threads, while the inner nut threads engage the threads of the propeller shaft. A device (56, 43) is provided for securing the nut against threadable rotation in its mounting. The inventive concepts may be utilized with a single or dual propeller system or any other hub and shaft connection.

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 device is disclosed by which a portable receptacle can be inserted onto, secured to and extracted from a stationary support. The device utilizes a pair of cooperating securing members, one of which is attached to the support and the other of which is attached to the receptacle. The securing member on the receptacle is stationary. The other securing member is movable linearly and rotatably. When the two securing members are engaged with each other, they can cooperate in connection with the insertion, securement and extraction of the receptacle.

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: An adapter for coupling a flexible corrugated drainpipe to a sewage disposal site inlet, includes a hollow tubular member having an opened drainpipe end portion adapted to engage threadably an end of a corrugated drainpipe. A hollow adapter member has an opened rear end portion adapted to be inserted into the disposal site inlet, and an opened upstanding front end portion, receives telescopically in a tight fitting relationship an opened rear end portion of the tubular member to interconnect the two members in fluid communication. A quick release mechanism on the tubular and adapter members enables a user to disassemble the two members by rotating the members axially relative to one another.

Abstract: A coupling device for two flanged shaft ends is disclosed. A tapered pin bolt having a conical shank is employed within a complementary, internally tapered expansion sleeve having longitudinal slit. The pin bolt and sleeve extend through aligned bores provided in the flanges. The pin bolt is externally threaded on its opposite ends extending from the conical shank. A nut having an internal, axially extending and pin arrangement is mounted over each respective end of the pin bolt.

Abstract: An accessory or an accessory mount for a yacht comprises a device (1) not involved with the normal operation of a winch and having an integral supporting leg (3) which is adapted to locate in the handle receiving socket of a winch. The leg (3) is designed to be a jamm fit in the handle receiving socket, and has a thread (5) at least towards its upper end. A threaded ring (6) engages the threaded upper end of the leg (3) and is screwable down the leg (3) so that it will engage the top of the winch and force the leg (3) out of its jamm fit with the socket.

Abstract: A coupling mechanism for quick attach/disconnect of a control fin to a missile which does not require the use of a separate tool to make the attachment. A first coupling member 24 is mounted on the control fin actuator rod 16. A force regulating means comprised of a spring 28 and retainer bracket 58 are attached to the first coupling member. A second coupling member 26 and a pivotable lever arm 38 are formed as part of the control fin. When the second coupling member is loosly fitted upon the first coupling member, rotation of the lever arm will engage the force regulating means thereby deflecting the spring 28. The reactive force of the spring is exterted through the lever arm, through the control fin, and causes the second coupling member to firmly and securely engage the first coupling member. A means is provided to lock the lever arm in place so as to retain the first and second coupling members in the firmly engaged position even through extreme aerodynamic maneuvers.

Abstract: A drive for a circular knitting machine (10) used in the manufacture of panty hose blanks, using a one-way clutch (A) in the drive connection which permits a main drive shaft (16) to be rotated in one direction but does not permit it to be rotated in the opposite direction. The knitting machine may also be driven while the main power source is at rest, that is, the knitting machine may over-run or coast to a stop after the power source has been disconnected and the needle cylinder may be revolved manually during set up. The one-way clutch (A) comprises a clutch body (30) which is connected to the main drive shaft (16) and fits within an outer race (28) of an input drive sheave (20) which is driven by a suitable power source.

Abstract: A method and apparatus for removing a propeller hub secured by a nut to a tapered drive shaft. A puller abutment is fixed to the hub in position to engage the nut and prevent axial movement of the nut relative to the hub. Rotation of the nut against the axially immovable abutment results in axial movement of the hub, nut and abutment relative to the shaft, separating the hub from the shaft. Continued rotation of the nut separates the hub and nut from the shaft.

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 pin retention mechanism for a pivot joint which connects together two structural members of a machine for pivotal movement relative to each other. The pivot pin has a dynamic connection with one of the structural members and there is an annular spacer on the pivot pin adjacent the dynamic connection. The other structural member has a tapered opening through it with the taper either on the structural member itself or on a bushing within an opening in the other structural member. A collet in the tapered opening has an external surface mating with the tapered internal surface. A cylindrical sleeve is located between the collet and the pivot pin and in contact with the spacer.

Abstract: A steam generator having a steam generator chamber, a tube plate bordering the chamber, tubes terminating in the tube plate being accessible through the steam generator chamber, a tubular column in the steam generator chamber having an end facing toward the tube plate, and a swivel arm extended from the tubular column being movable parallel to the tube plate for carrying a device for testing and/or repairing the steam generator tubes, includes a clamping element for positioning the tubular column relative to a tube of the tube plate, and a coupling being detachable from outside the steam generator chamber connecting the clamping element to the tubular column, the clamping element including a drive element disposed in the tubular column, an expansion plunger connected to the drive element for axially inserting the expansion plunger partially into a tube, an expansion sleeve formed of separate clamping jaws for engaging the tubes, the clamping jaws having ends being insertible into a tube, and a holding element

Abstract: A device for temporary edge to edge securement in space of two parts along a contacting surface comprising:a plurality of retaining members distributed in pairs on either side of such contacting surface on each of said respective parts and a plurality of temporary connection members adapted to maintain them coupled to one another, with the rataining members in each pair being provided with complementary raised members for retainment thereof one relative to the other according to a longitudinal direction parallel to said contacting surface in at least one direction, said retaining members in each pair forming conjointly a bulging tenon oriented longitudinally engaging a narrowing groove formed in a rider constituting a temporary connection member for such pair of retaining members, andan automatic release mechanism comprising a coordination element connected to the plurality of temporary connection members and adapted to disengage the latter relative to said plurality of retaining members under the action of a

Abstract: A latching lever for use with a printed circuit board and being of a width similar to that of a faceplate for the PCB, includes an actuating member and a hooked portion projecting therefrom. The actuating member is flexibly hinged to a body portion of the latching lever by a hinge formation which includes a thick section located in a plane of the hooked portion for defining a preferred resilience of the hinge, and a thinner section away from the thick section for stabilizing the actuating member in relation to the body portion. A stud carried by the PCB is engaged by the hooked portion to latch the lever. The hooked portion is disengaged from the stud by moving the actuating member thereby freeing the lever to rotate about its pivot point. A portion of the body remote from the actuating member and extending beyond the pivot point includes a stop formation for contacting an edge of the PCB to prevent unnecessarily extreme rotation.

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 joint for connecting together two frame members of a machine for relative movement wherein one of the frame members has flexible portions which during assembly of the joint are flexed to enable the joint to be assembled without shims and without exceeding predetermined maximum stresses on the parts of the joint.

Abstract: A flanged bushing mounting adaptor for use in mounting a flanged bushing in the hub of a shaft-mountable structure, the hub having a tapered bore with recesses formed therein, and the bushing having a tapered barrel and a flange with threaded and unthreaded holes therein. The adaptor has a tapered outer circumferential surface for wedging engagement with the oppositely tapered hub, and a tapered bore for wedging engagement with the oppositely tapered barrel of the bushing. The adaptor also includes a plurality of threaded bores corresponding to the unthreaded holes in the flange, for receiving screws or bolts to secure the bushing to the adaptor and to draw the assembly into the hub. Bosses, or recesses with set screws, corresponding to the recesses in the hub, may be included on or in the outer surface of the adaptor to prevent relative rotation between the adaptor and the hub.

Abstract: Tamping tools for mounting in a ballast tamping apparatus such as the rail-mounted Canron, Plasser and Jackson ballast tamping machines designed for tamping ballast around railroad cross ties, which tamping tools each include a shaft adapted for mounting on a reciprocating mechanism in a respective ballast tamping machine, a shaped shank extending from the shaft, a weld ring or nut seated on the shank and welded to the shaft and a tool foot having a receptacle internally configured to receive the shaped shank, with the tool foot welded to the weld ring or nut for easy replacement. A blade is provided at the extending end of the tool foot in offset relationship for contacting and tamping the ballast and in a first embodiment the blade is formed integrally with the foot, while in a second embodiment the blade is bolted to the tool foot.

Abstract: A laboratory joint is provided for a pair of male and female members having matable tapered ends which are connected together by a sleeve which can lock the members together to prevent accidental separation, which sleeve is capable of separating the assembled members when desired in a safe and expedient manner.

Abstract: A positioning collar clamping device comprising, a generally rectangular body member having a projecting portion, said member being adapted to receive a shaft through a central longitudinal opening therein, means defining a first transverse opening through said member and overlappingly intersecting with said shaft receiving longitudinal opening, a lock pin adapted to movably fit within said first transverse opening having first and second ends, said first end having a threaded surface and said second end being adapted to affect an interference fit with said shaft disposed within said longitudinal opening when said lock pin is moved in a first direction, while moving said pin in a second direction reduces and eliminates the interference fit, means defining a slot at one end of said first transverse opening, and captive nut means threadably receptive of said first end of said lock pin, said captive nut means being positioned in said slot so as to be axially immovable in relation to said first transverse opening

Abstract: A clamping device for the fastening of a hub on a shaft, with a tapered flange ring having a cylindrical circumferential surface, with a conical circumferential surface radially opposing the surface and with a radial flange and with two taper parts capable of being tightened by means of axial clamping screws, with conical surfaces intended for cooperation with the tapered surface of the tapered flange ring. Control of the stress distribution along the shaft and security against overloads without slipping on the shaft are also obtained.