Abstract: A coupling device for a torque transmitting, longitudinally displaceable coupling of two shaft parts formed by toothed profiles is arranged to ensure backlash free meshing of the toothed profiles in the direction of rotation. An intermediate bush is provided between both shaft parts, which intermediate bush meshes with their toothed profiles and is slit like a collet at both bush end areas. A clamping and expanding members are respectively allocated on the shaft side to the slit bush end areas, which clamping and expanding members come into mesh with the shaft parts during coupling of the latter and, under the action of an axially directed contact force, avoid, by compression and expansion respectively of the slit bush end areas, flank clearance between the toothed profiles coming into mesh with one another.

Abstract: A telescopic drive spindle assembly for a rolling mill permits the assembly to accommodate axial displacement of the roll. The assembly has first and second overlapping members with a piston in one member being displaceable in a cylinder in the other member. The piston defines a chamber and a quantity of gas in the chamber serves to urge the piston in the direction out of the cylinder so as to increase the effective length of the drive spindle.

Abstract: An extendable/retractable operational sleeve is composed of a main sleeve portion and a movable sleeve portion movable in the axial direction in a telescopic manner relative to the main sleeve portion. A stop member for limiting outward separation of the movable sleeve portion of the operational sleeve is integrally formed with a bearing for supporting a main transmission shaft.

Abstract: A coupling arrangement for two axially aligned shaft sections is obtained through two splined profiles, one attached to each shaft through a tensioning arrangement that eliminates relative rotation between the two shaft sections while permitting longitudinal movement therebetween. One shaft section connected to one end of the tensioning device and the other shaft section connected to another end of the tensioning device and wherein the other end of the tensioning device operates to cause one of the splined profiles which is slotted to grasp the other splined section to provide for the relative non-rotational drive and the axial longitudinal shifting of the shaft sections.

Abstract: In a percussion drilling tool, a bit is connected to a drill motor through a mating spline connection. External splines on the bit engage internal splines in the drill motor and have respective load bearing faces disposed in a plane extending radially outwardly from central axes. The splines also include a crest land, and a root land. When the splines are in an abutting centered position, there is a uniform radially measured outer clearance between the external spline crests and the internal spline roots, and a uniform radially measured inner clearance between the external spline roots and the internal spline crests. The outer clearance is less than the inner clearance to prevent abrasive damage below the root diameter of the bit resulting from axial relative movement so that the external spline crests will engage the associated internal spline roots while continually maintaining a spacing between the external spline roots and the internal spline crests.

Abstract: This anti-lead seal prevents the accumulation of torsional and tangential stresses on one and the same sealing element by way of an intermediate sleeve (6) which forms an axial seal gap (7) with one of the coordinated corrugated or housing-like machine parts (1, 2) and a radial seal gap (8) with the other. Since the intermediate sleeve (6) is firmly retained via a torsional safety (11) and an axial fixation (13), the sealing elements (9) for the radial seal gap (7) are stressed only by relative axial movements and the sealing elements (12) for the axial seal gap (8) are stressed only by rotational movements. Here simple elastomeric parts can be used that are easy to supply and can be quickly mounted.

Abstract: There is provided a tooth system for the static transmission of a torque between two machine components coaxially disposed in one another, e.g. a shaft and a hub, in which the tooth surfaces are straight and are designed with a very large pressure angle and with large tip and root fillet radii. The pressure angle of one component deviating slightly from that of the other component by half the torsion angle so as to overcome backlash. As a result, under load, the tooth surfaces abut over their entire surface. Also, the hubs can be produced with a smaller blanking indentation, in particular in the case of discs made of sheet metal, which increases the bearing capacity, and furthermore this can be done even more precisely, which results in an increase in centering precision and less noise generation during operation.

Abstract: An axially movable column having torque transmitting inner and outer relatively axial movable telescopic shafts. The inner shaft has a cylindraceous outer shape with at least one large flat surface and the outer shaft has a bore therethrough with a corresponding cylindraceous inner surface and at least one flat corresponding to the flat on the inner shaft. The outer shaft has a first portion with a substantially circular cross-section and a second portion with a substantially non-circular cross-section and provided with an anti-lash mechanism in which the outer shaft at its end or an extension thereof is torsionally displaced so that a torsional pre-load is applied to the inner shaft by cooperation of the large flat surfaces.

Abstract: A resilient shaft coupling that, to transmit torque, includes an annular intermediate member made of rubber disposed between an inner rigid coupling part and an outer rigid coupling part. The intermediate member has, on its outer periphery, pinion-like rubber teeth that mesh, with provision for axial movement, with companion inner teeth of the outer coupling part. The radially inner zone of the intermediate member is embodied as a member of uniform torsional strength. For radial support of the projecting portions of the outer zone, at least one closed metal ring is embedded in the rubber concentrically of the rotational axis near the radially inner interface of the zone and near each of the axial outer surfaces. The rings are preferably in the form of cables made from wire strands. To further increase the transmissible torque, the rubber of the outer zone is harder than the rubber of the inner zones.

Abstract: A viscous coupling for a drive shaft has an elongated tubular first shaft and an elongated cylindrical second shaft extending into and cooperating with the first shaft to define a cylindrical clearance therebetween. Bearings for accommodating both relative rotation and axial displacement of the first and second shafts are interposed therebetween at opposite ends of the clearance. Seals are associated with the bearings to hermetically seal the ends of the clearance, which is filled with a viscous fluid. The viscous resistance of the fluid to rotation of one shaft relative to the other provides a means of transmitting torque therebetween.

Abstract: The unit comprises an armature (1) provided with a rotary output shaft (2) and a speed reducer (3) provided with a shaft (6) supporting a worm (5) engaged with a worm wheel (4) for driving the accessory, and an articulated coupling (20) between the two shafts (2, 6) which are disposed in end-to-end relation. The coupling (20) between the two shafts comprises a male member (8) disposed in female parts (9, 11) which are conjugate with the male member (8) and formed in confronting end portions (2a, 6a) of the two shafts (2, 6), and a single bushing (12) in which the end portions (2a, 6a) are inserted and which ensures the support and the axial alignment of the two shafts (2, 6).

Abstract: A variable length shaft assembly particularly for steering shafts in motor vehicles, wherein a pair of telescopically axially displaceable shaft members have a resilient sliding sleeve interposed therebetween, with the sleeve being affixed to one of the shaft members and with pairs of radially extending fins formed longitudinally along the sliding sleeve being radially directed toward the other shaft member to effect deformation and a resilient force attending to eliminate the feeling of play between the shaft members during operation of the steering assembly.

Abstract: A telescoping low vibration pulling mechanism for use in Czochralski crystal growth apparatus, comprising a broached bushing which defines an internal circumference of teeth therein, which teeth cooperate with complimentary teeth defined on the circumference of a splined shaft. The bushing is coupled to a motor drive via a hollow tube and the splined shaft, couplable to a seed shaft and an elevation assembly, telescopes through said bushing within said hollow tube.

Abstract: A sewing machine consisting of left and right hand individual sewing machines which are joined together adjustably to provide a gap between the machine bases in which drive means are provided that includes an external drive shaft that is joined at its ends to each of the individual machines.

Abstract: An improved telescoping torque transmitting connection and a method for making tubes used in the formation of this connection are disclosed. The tubes are formed with inwardly extending lobes and the lobes are formed so that the wall thickness of the tube in their vicinity is at least as great as it is in the remainder of the tube, whereby the strength of the tube is not reduced by formation of the lobes. The lobes are formed with substantially flat flanks for interaction with the lobes of the mating tube, whereby the contact between the two tubes is made at a plurality of planar surfaces rather than along a plurality of lines so that the end loading developed when the tubes are telescoped with respect to one another under load is not excessive.

Abstract: A splined, two-piece propellor shaft with radial clearance between the inner and outer splined members which permits them to move radially relative to each other in which an asymmetrical weight distribution around the circumference of at least one of the members is provided on either or both of the inner and outer members to generate a centrifugal force upon rotation of the propellor shaft which causes predetermined portions of the members to move radially into tight engagement with each other so that the splined sections consistently assume the same radial relation during rotation.

Abstract: A three axis flexure joint is provided which is very stiff against translational forces along its long axis but is operable with three degrees of freedom over small angles with no lost motion. The flexure comprises two spaced metal connectors, which are connected to each other by a wire which runs through the metal connectors along an axis and is integrally joined to each connector, and at least one snubber pin. The snubber pin snugly fits into a bore of one connector of the flexure, the bore being arranged to accept the pin and to be parallel to the wire axis, while in the second connector, the pin has a loose fit in a corresponding hole similarly located. In this manner, the integrity of the connecting wire is maintained as the pins act as stops to rotation if rotation of either connector around any of its axes exceeds a predetermined limit. The flexure is also preferably configured with each connector being a bolt or screw so as to permit easy connection of the flexure to rods and master and slave devices.

Abstract: A telescopic shaft assembly for torque transmission in agricultural implements includes a first and a second profiled shaft arranged in torque transmitting engagement with each other with a pair of telescopic tubular tie anchors being releasably attached one with each of the profiled shafts, the tie anchors being joined together so as to be length adjustable relatively nonrotatable by a connecting mechanism which includes a pair of axially extending slots formed in one of the tie anchors and a transversely extending bolt formed in the other which is engageable within the slots, each of the tie anchors being attached, respectively, to one of the profiled shafts by spring actuated releasable engaging devices with the engaging device connecting the innermost of the two tubular tie anchors with one of the profiled shafts enabling disengagement thereof with a lower disengaging force than the other of the engaging devices.

Abstract: A universal joint transmission for a rearwards gear transmission that has a shaft which is in driving engagement with the interior of the receiving hub of the universal joint, but is movable longitudinally relative to the receiving hub, the transmission including a driving gear hub which is hollow, and which adjoins the receiving hub, its interior forming with the inside of the receiving hub a space in which the shaft extends from the gear hub into the receiving hub, the driving coupling member of the universal joint being in driving connection with the gear hub, the gear hub and a ring member of the coupling device of the universal joint being formed internally flaring outwardly to provide for easy pivoting of the shaft.

Abstract: A driveline apparatus with a one piece sealing member to prevent loss and contamination of lubricant. The slip type assembly is generally of a sliding spline design. A yoke shaft is fitted into a slip yoke with an internal spline that generally mates with the external spline of the yoke shaft. Universal joint assemblies are attached to each yoke completing the assembly. The splined cavity within the slip yoke generally contains lubricants and is sealed by a plug and a seal which keeps the lubricants in and contaminants out. The sealing member is made of a resilient material and is of one piece construction. The sealing member has a cylindrical wall and integral radially inwardly extending circumferential annulus. The wall and annulus generally complement and mate with the cylindrical end of the slip yoke that has a groove on its surface to receive the annulus.

Abstract: A slip type driveline assembly with a one piece sealing member to prevent loss and contamination of lubricant. The slip type assembly is generally of a sliding spline design. A spline plug is fitted into a slip yoke with an internal spline that generally mates with the external spline of the spline plug. A tube and weld yoke assembly is generally pressure fit and welded to the spline plug. Universal joint assemblies are attached to each yoke completing the assembly. The splined cavity within the slip yoke generally contains lubricants and is sealed by a plug and a seal which keeps the lubricants in and contaminants out. The sealing member is made of a resilient material and is of one piece construction. The sealing member has a cylindrical wall and integral radially inwardly extending circumferential annulus. The wall and annulus generally complement and mate with the cylindrical end of the slip yoke that has a groove on its surface to receive the annulus.

Abstract: Agricultural slip type driveline assemblies are generally of a sliding shaft design. A square shaft is fitted into a square tube slip yoke having an internal cavity that generally mates with the square shaft. The square shaft is generally welded to the square hole yoke. The sealing member is made of a resilient material and has four walls and integral radially inwardly extending ridge members. The walls and ridges generally complement and mate with the square end of a slip yoke that has four grooves on its surface to receive the ridges and hold the seal in place. The walls are joined to four radially inwardly extending walls which in turn are joined to radially inwardly converging square pyramidal walls. The pyramidal walls terminate at four radially outwardly extending reinforcing ribs.

Abstract: An electron microscope stage is manually movable in three orthogonal axial directions and two orthogonal rotational directions by corresponding motion transmission systems. Four of the transmission systems employ telescopic rods and a connecting pin having three resilient independently compressible sections. The pin transmits torques from one rod to the other about their longitudinal axes. One section is resiliently secured to an aperture in the inner rod, the other sections are resiliently secured to mating axial slots in the outer rod to permit relative axial displacement of the rods. The independent resilient compression of each section compensates for wear or differences in dimensions between mating surfaces while maintaining tight resilient torque coupling without backlash between the pin and the rods.

Abstract: In a drive shaft assembly particularly for agricultural implements, a pair of telescoping tubes which may be placed in torque transmitting engagement with each other are provided with a profiled hub on the outer tube at the end thereof where the inner tube is inserted, with the profiled hub consisting essentially of formed inserts in a number corresponding to a number of ribs provided on the inner tube, with contact faces being provided on both sides of the inserts in the circumferential direction to correspond to the shape of the ribs, the insert being held in rotationally fixed engagement with the outer tube.

Abstract: A drive line joint assembly (10) has splined driving and driven members (13,20), one of which has a protuberance (36) which extends axially along a spline (16,18) thereof to insure the absence of radial tolerance for balancing purposes. In a preferred form, a forged steel spline (16) has a resilient coating (40) bonded thereto, the coating preferably of a nylon or of other material having comparable low friction quality. The resilient protuberance is an integral part of the latter low friction coating and is formed by a broaching tool after the coating material has been applied to the spline. In a preferred embodiment, the protuberance extends only 0.001 to 0.003 inch above the surface of the coating, wherein the coating has a thickness in the range of 0.007 to 0.014 inch over the steel body portion of the spline. At least three of the protuberances are preferred, each circumferentially spaced from the other.

Abstract: A system is disclosed wherein a rotatable flexible shaft is capable of coupling one of several driving members to one of several driven members. The output shafts of the driving members may be of different sizes as well as the input shafts of the driven members. The flexible shaft is of standard length and diameter and is provided with conventional integrally formed squares at each end thereof. Each integrally formed square is slidingly received by an adapter having a mating hollow square at one of its ends. The other end of each adapter is provided with a bore of varying sizes which bores are capable of receiving any of the output and input shafts of varying sizes. The flexible shaft free floats in the mating hollow squares of the adapters.

Abstract: A slip bearing for a power takeoff shaft wherein a sleeve is placed between the socket and shaft of the power take off. A retaining ring, inserted in grooves formed on the inside of the shaft, is used to hold the nylon sleeve in the shaft.

Abstract: A square one piece sealing member for a slip type driveline assembly to prevent loss and contamination of lubricant. The sealing member is made of a resilient material and has four walls and integral radially inwardly extending ridge members. The walls and ridges generally complement and mate with the square end of a slip yoke that has four grooves on its surface to receive the ridges. The walls are joined to four radially inwardly extending walls which in turn are joined to radially inwardly converging square pyramidal walls. The pyramidal walls terminate at four radially outwardly extending reinforcing ribs.

Abstract: A one piece sealing member for a slip type driveline assembly to prevent loss and contamination of lubricant. The sealing member is made of a resilient material and has a cylindrical wall and integral radially inwardly extending circumferential annulus. The wall and annulus generally complement and mate with the cylindrical end of a slip yoke that has a groove on its surface to receive the annulus. The cylindrical wall is joined to a radially inwardly extending wall which in turn is joined to a radially inwardly converging truncated conical wall. The truncated conical wall terminates at a radially outwardly extending reinforcing rib.

Abstract: The coupling comprises a tubular sleeve (1) having internal splines (3) and a shaft (7) with complementary splines which are fitted in and engaged with the splines (3) so that the shaft and sleeve are relatively axially slidable. In order to reduce angular play between the splines of the sleeve and the shaft, a spring in the form of a plate (9, 9') is elastically jammed between a transverse recess (11) formed in the shaft and the inner surface of the sleeve. The spring plate bears against the recess by a center portion of the plate and against the inner surface of the sleeve by its ends (13) which engage the flanks (15) of two of the splines (3) of the sleeve.

Abstract: A coupling between a hub (10) and a shaft (11) has first and second splines (512,513; 530,531) connecting the hub to the shaft. The first splines extend axially and are straight while the second splines are helical. A nut (521) on the shaft urges the hub axially toward a shoulder (527) on the shaft. The first and second splines, being of different helix angles, co-operate to urge the spline faces circumferentially into engagement to take up any clearance therebetween. The different helix angles also have the effect of limiting axial movement of the hub under the nut load. On application of the nut at an initial moderate torque the hub takes up an initial axial position. On further, more powerful, application of the nut, the hub is urged axially against the shoulder (527) which provides a final limit to movement of the hub thereby to avoid undue circumferential stress in the splines.

Abstract: A splined joint between a shaft and a muff, with a support bearing in a tapered recess at the end of the muff and contractable onto the shaft to support same by a retaining member which is screwed onto the muff. The retaining member comprises a ring of a plastics or rubber material, the screw threads of which will yield to prevent over-tightening and possible binding of the bearing on the shaft.

Abstract: The drive shaft assembly comprises first and second telescoping shafts supported above ground level. A motor is coupled to the first shaft for extending it in an axial direction. Another motor is connected to the second shaft for rotating the second shaft about its longitudinal axis. These shafts are connected by a coupling so that the second shaft rotates the first shaft in all positions of the first shaft. The first shaft terminates at a free end in a frictional engageable end portion.

Abstract: The disclosure concerns a multiple-spline hub that is particularly useful for a telescopic shaft for transmitting torque. There is a thin-walled tube section which is developed as a toothed profile tube having teeth of trapezoidal cross-section. There is a thicker-walled tube to which the connecting element of the telescopic shaft, such as a joint fork, is attached. The toothed tube section is inserted in the bore of the thicker-walled tube and the crests of the teeth of the tube section engage the interior surface of the bore of the tube. The crests of the teeth are bonded by brazing to the bore of the thicker-walled tube.

Abstract: A swivel mounting device comprising a male member having an attachment portion, and a stem portion having a plurality of longitudinal first grooves therein and a second circumferentially extending groove therein; and a female member having a recess therein to receive the male stem portion and having a spring loaded pawl member for engaging one of the male member first grooves while permitting ratcheting rotation between the male and female members, and a plurality of spring loaded slide members for engaging the male member second groove to releasably retain the male member and female member together.

Abstract: A flexible shaft drive for drill chucks is disclosed. The flexible drive of the present invention comprises a flexible shaft for extending between an electric drill and a chuck for holding drills or other tools. A support sleeve is provided which encircles the chuck for rotatably supporting the chuck during use. In a preferred embodiment a bearing is interposed the chuck and the sleeve to aid in supporting the chuck during use.

Abstract: A drive line joint assembly (10) has splined driving and driven members (13,20), one of which has a protuberance (36) which extends axially along a spline (16,18) thereof to insure the absence of radial tolerance for balancing purpose. In a preferred form, a forged steel spline (16) has a resilient coating (40) bonded thereto, the coating preferably of a nylon or of other material having comparable low friction quality. The resilient protuberance is an integral part of the latter low friction coating and is formed by a broaching tool after the coating material has been applied to the spline. In a preferred embodiment, the proturberance extends only 0.001 to 0.003 inch above the surface of the coating, wherein the coating has a thickness in the range of 0.007 to 0.014 inch over the steel body portion of the spline. At least three of the protuberances are preferred, each circumferentially spaced from the other.