Abstract: A telescopic module includes a first tube, a second tube, a holder, and a plurality of rollers. The first tube has a passageway. The second tube is received in the passageway of the first tube for reciprocation. The holder is mounted on the first tube. The rollers are pivoted on the holder to rest against the second tube or the first tube, or both to touch an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving.

Abstract: A linear transport system for conveying an object, wherein the linear transport system comprises at least one stationary guide rail and at least one movable conveying device, wherein the conveying device comprises a first guide unit having a first track roller, a second track roller and a first turntable, wherein the first track roller and the second track roller are mounted in a rotatable manner at the first turntable and lie against the guide rail, wherein the guide rail comprises a longitudinal rail axis extending in the longitudinal direction, wherein the first turntable is mounted about a turntable axis in a rotatable manner, wherein the turntable axis is arranged in an inclined manner, in particular perpendicular, to the longitudinal rail axis.

Abstract: Transport system comprises a guide rail having straight and curved portions, a carriage movable along the rail, first and second roller groups on the carriage, and an auxiliary guide at each curved rail portion, corresponding to the curved portion and having an external wall. The first roller group includes an internal roller on the carriage in permanent contact with an internal guide-rail wall along both straight and curved portions and two external rollers contacting the external guide-rail wall only along the straight portions. The second roller group includes two rollers on the carriage, spaced from the guide rail, and in contact with the external wall of the auxiliary guide when the carriage moves along the curved portions. The internal guide-rail wall has, at each curve, an arched surface facing towards the internal roller of the first roller group.

Abstract: An actuator includes M supports to support the rotary shaft, M being an integer equal to or more than 2; and M speed reducers. The Nth support out of the M supports is located at the opposite side of the moving body across the (N?1)th support, N being an integer which is equal to or more than 2 and equal to or less than M. The first speed reducer is connected to the moving body and the first support, receives a movement of the moving body in the axial direction as an input and drives the first support with a reduced drive force that is reduced from the input, and the Nth speed reducer is connected to the (N?1)th support and the Nth support, receives a movement of the (N?1)th support in the axial direction as an input and drives the Nth support with a reduced drive force.

Abstract: A Collision Bearing within a channel means, expressing the universal physical principle of collision. An assembly of two weight-bearing bearings, in two embodiments, for the purpose of moving objects. A slide plate must be attached to the support body of the bearings, whose width is in sliding contact with the inner channel walls, to align the motion of the bearings along the channel. This channel having a flange member, which retains the Collision Bearing within the channel. These two functions, rolling and sliding, simultaneously, demonstrates the universal physical principle of collision being claimed, and places the Collision Bearing in the category of a basic machine in the field of mechanics, as is for example, the nut and bolt. Impact pads are attached to the end walls of the bearing support body as a necessary component part in protecting this body.

Abstract: A saw attachment mechanism includes at least one guide roller configured for releasable engagement with a track, a guide roller shaft and a guide roller pivot, each coupled to the guide roller, at least one pushrod configured for engagement with the guide roller shaft, and a cam shaft coupled to a handle. The guide roller can rotate around a guide roller axle. The guide roller pivot is coupled to the one guide roller to allow rotation of the guide roller and guide roller shaft toward and away from an engaged configuration. The pushrod can engage the guide roller shaft at a first end and the cam shaft at a second end. As the cam shaft is rotated, the pushrod slides to engage the guide roller shaft, to swing the guide roller shaft into an engaged position.

Abstract: The conveying device for conveying products comprises a plurality of slides individually movable with respect to each other for holding products and a guide rail, on which the slides are guided. A linear motor drive unit serves to drive the slides. The slides comprise a first subelement and a second subelement, each of the subelements comprising at least one permanent magnet, which interacts at least in certain sections of the guide rail with coils of the linear motor drive unit. The first and second subelements are connected to each other and are movable relative to each other in linear fashion.

Abstract: A roller guide for adjustable vehicle seats. The roller guide includes at least one guide rail which is at least partially open at the side and at least two rollers which roll in the guide rail and are connected to the vehicle seat via at least one axle. At least one of the rollers is shaped like a cone or a truncated cone. The cone surface can roll as the bearing surface of the roller moves along an inner wall of the guide rail. The inner wall being arranged at an angle with respect to the longitudinal axis of the axle.

Abstract: A trolley assembly for adjusting the position of an upright along a cross-bar. The trolley assembly comprises a frame assembly, an upright support extending from the frame assembly, at least one roller assembly secured within the frame assembly and adapted to travel along the cross-bar, and a lock. The lock is moveable between an open position wherein the frame assembly is moveable relative to the cross-bar and a locked position wherein the frame assembly is fixed relative to the cross-bar.

Abstract: The guidance means (20) according to the invention is used for guiding the rolling or sliding movement of objects (10) along a predetermined or preset path or route, whose course is freely selectable within wide limits in space. The guidance means (20) has a guiding means extending without interruption over the predetermined path in the form of a cage-like arrangement of a plurality of at least limitedly bendable guide rails (21) and a plurality of support or carrying elements (22), which are arranged in mutually spaced manner along the predetermined path and which hold the guide rails (21) in parallel and in an at least partly spaced manner in the predetermined, cage-like arrangement. The guide rails (21) advantageously comprise a limited flexible, continuously manufacturable metal or plastic profile. The support elements (22) can be installed on a fixedly laid base element (23), e.g. in a position adjustable with respect to the base element (23).

Abstract: The Two Axis Track Roller is in the form of two sealed bearings mounted to a single stud which allows the device to carry loads in two dimensional axis. In this way the device can carry a load along a track as well as guide along a track wall. When used in pairs the device can be "pre-loaded" which allows for precise guiding of linear motion. The conventional bearing used provide internal balls and rollers which ride on their internal precision ground and hardened surfaces. The external bearing surfaces thus can ride on non hardened track surfaces whose precision is dictated only by the application requirements. Since the bearings are sealed the bearing balls and rollers do not come in contact with environmental contaminants so bearing life is increased.

Abstract: A device for drawing out heavy loads including at least one drawing-out rail having a I-shaped cross-section and a vertical central plane of symmetry, running rollers provided on opposite sides of the drawing-out rail, and a pair of stationary rails or a pair of rails at least partially displaceable in a longitudinal direction, the rails of the pair of rails being arranged on opposite sides of the drawing-out rail for supporting the running rollers, with flanges of the rails forming tracks for the running rollers, and with the stationary rails, the drawing-out rail, and the partially displaceable rails being all formed of rolled steel sections.

Abstract: A linear guideway arrangement is provided by upper and lower guide bars held in a spaced apart parallel relationship by a series of locator blade pieces having end contours engaging the inside surfaces of the guide bars. Upper and lower rollers sets are mounted to a holder member, the rollers in each set engaging the upper and lower surfaces of the guidebars to provide low friction rolling support for a structure mounted to the holder member.

Abstract: A mechanism is composed of a seat, an air or oil cylinder, a connection seat, and a guide rod for maintaining the linear motion of a mechanical arm which is fastened with the connection seat. The guide rod is provided with a slot extending along the direction of the longitudinal axis of the guide rod. Two opposite walls of the slot of the guide rod are provided respectively with a rail enabling the guide rod to move linearly in conjunction with a plurality of rollers engageable with the rails. The axial positions of the rollers can be adjusted to correct the deviated motion of the guide rod.

Abstract: A parallel guide apparatus comprises two roller-type linear guide apparatuses disposed in spaced-apart, confronting, parallel relation. Each roller-type linear guide apparatus comprises a rail 2 and a slider 3 slidably assembled into the rail 2 via a roller 9. The rail 2 is made by deforming a plate material to form a channel-shaped cross section. The slider 3 has at least three roller 9 which are disposed such that their entire width d becomes slightly larger than the distance 2 between opposite guide planes of the rail 2. The rollers 9 supported on the slider 3 are brought into contact with guide planes of the rail 2. The rollers 9 may be made of a sintered metal impregnated with a lubricant. The rollers 9 in one of the roller-type linear guide apparatus are slightly movable toward the rollers 9 in the other roller-type linear guide apparatus.

Abstract: In this linear motion rolling guide unit apparatus, a movable track rail is moved relatively to a fixed track rail via a pair of sliders, and one slider is kept stopped with respect to the movement of the track rail, whereby a smooth and stable sliding movement of the track rail can be made. The two sliders are provided between the movable track rail and fixed track rail so that the sliders are moved independently of and relatively to each other. The two track rails are provided with connecting members on the portions thereof which correspond to the terminal ends of the movements of the sliders, and the two sliders members to be connected which are adapted to be detachably engaged with the connecting members.

Abstract: An actuator designed in such a way that a feed screw having both ends respectively supported in a rotatable manner by a pair of bearing members arranged on a base is moved in the proper direction by a rotary driver, and as a feed nut engaged with the feed screw with its rotation being restricted by the feed screw is moved in accordance with the rotation of the feed screw, a slider attached to the feed nut is moved. A pair of support members are provided midway between the slider and the bearing members located on both sides of the slider and are movable in a feeding direction. The support members support the feed screw while their postures are restricted in a direction perpendicular to the feeding direction. The support members are coupled by first coupling means. Rotary bodies are respectively attached to the support members in a rotatable manner, with a thread member put around those rotary bodies. The thread member has both ends coupled to the slider and has its center portion secured to the base.

Abstract: In a rectilinear guide apparatus wherein a female guide is disposed outside a male guide and four rows, for example, of rollers are interposed between the two guides and the male guide is rectilinearly movable relative to the female guide, rollers in two of the four rows are oriented in the same direction and all rollers in the other two rows are inclined so as to be substantially orthogonal to the rotation center axes of the rollers in the first-mentioned two rows. This rectilinear guide apparatus provides an effect similar to a combination of two rows of cross rollers, but provides higher strength and simplifies working of the rolling surfaces of the rollers.

Abstract: A thrust bearing for bearing a load along a force vector includes at least two roller elements in rolling contact with one another and arranged along the force vector such that the load is borne through the roller elements. The roller elements are retained within a retainer such that they remain aligned along the force vector while subjected to loads. The retainer used to house the roller elements may be designed to abut the roller elements at minimum points of contact, or alternatively to distribute the load borne by one or both of the roller elements across a greater surface area. One application of the preferred thrust bearings is in an apparatus such as a keyboard support for reducing repetitive stress injuries. A main disk is rotatably coupled to a base and supports a support member on a plurality of the thrust bearings.

Abstract: Linear guidance device, of the type comprising a rail defining a path of movement of a movable assembly and rollers secured to the movable assembly. The rollers are mounted in an elastically deformable block (20, 30, 31) so as to apply the rollers (36a-36d) to the rail (17, 27, 42) while exerting a predetermined and substantially constant contact pressure on the guidance rail (17, 27, 42). The elastically deformable block (31) comprises at least two rigid portions (37, 38 or 39) interconnected by an elastic hinge (40 or 41) comprising at least one wall (40 or 41) of small thickness constituting a region of deformation and permitting relative pivoting between the two rigid portions (37-38, 37-39).

Abstract: A linear guiding apparatus comprises a rod having at least four guiding surfaces distributed over its periphery and extending in longitudinal direction of the rod. A carriage is arranged for a linear guided movement along the rod and has at least four rolls which engage a respective one of the guiding surfaces. Thus, the axis of each roll extends substantially in a direction perpendicular to the longitudinal axis of the rod, but is inclined with respect to a plane perpendicular to the respective guiding surface. In this way, the carriage is guided in axial direction of the rod by the rolls and is substantially free of torsion about the rod's longitudinal axis.

Abstract: The drive screw system comprises a drive screw and a drive nut adapted for driving a cooperating member such as a vehicle restraining device between the proximal and distal ends of the drive screw. At least one bearing assembly is mounted to a track for supporting the drive screw and automatically moving between the proximal and distal ends of the drive screw in response to the drive nut to automatically maintain a predetermined maximum unsupported length of the drive screw. Each bearing assembly comprises two bearing supports connected at a fixed length and which are coaxially disposed relative to each other. In one embodiment, the length of each bearing assembly are integral multiples of the smallest fixed connecting length and the drive screw has stationary bearing supports disposed at the proximal and distal ends wherein the distance between the stationary supports is (n+1)*L where n is the number of bearing assemblies and L is the length of the shortest bearing assembly.

Abstract: A roller and track arrangement for sliding members, has an elongate track with one or more slots extending into the track. Each slot has a first position at its outer end and an enlarged portion toward its inner end. Support members extend into the slot or slots. Rollers on the support members are positioned in the enlarged portions. The enlarged portions can be circular in cross-section with ovoid rollers. The enlarged portions can also be elongate in cross-section. The rollers can then be spherical. A particular use is for telescopic sliding roof sections for an open back truck. Tracks are mounted on the top edges of the truck side walls. The roof sections extend into the slots and carry the rollers. Seals for the slots and between ends of the roof sections can be provided.

Abstract: A multi-slider single rail linear motion rolling contact guide unit is provided. The guide unit includes an elongated rail provided with a first pair of guide grooves and a second pair of guide grooves. A first slider is provided with a first pair of endless circulating paths filled with a plurality of rolling members engageable with the first pair of guide grooves, and, similarly, a second slider is provided with a second pair of endless circulating paths filled with a plurality of rolling members engageable with the second pair of guide grooves. Thus, the first and second sliders are slidably mounted on the rail independently from each other.

Abstract: A precision head (10) for a machine tool includes a ram (12) axially movable along an axis A within an outer stationary ram support (14) of a polygonal shape. The outer stationary ram support (14) includes a pair of fixed bearing portions (16, 17) spaced from each other on one side (18) of the support (14) and a central bearing portion (20) on the other side (22) of the ram support (14) between the fixed bearing portions (16, 17). A pair of adjustable bearings (24, 25) bias the ram (12) against the pair of fixed bearing portions (16, 17). One of the adjustable bearing portions (24) is positioned on the central bearing portion (20) and the other adjustable bearing (25) is positioned in opposed relation to fixed bearing portion (16). The adjustable bearing portion (24) positions ram (12) with respect to the fixed bearing portions (16, 17).

Abstract: A roller assembly and arrangement for a torque reaction absorbing power tool support, in which sets of pairs of parallel opposing rollers are mounted to a bracket to define a space receiving a tool support shaft for guided in and out movement of the shaft. The shaft may be square shaped to absorb torque by torsion of the shaft, or round in shape to allow swinging of the shaft to position a supported tool.

Abstract: An extendable rail system is comprised of a support beam, a slide beam and a storage beam. The slide beam and storage beam extend horizontally and are supported by load rollers at one end and by a grooved roller at the other end. The grooved roller of the slide beam mates with an extension of the support beam. The grooved roller of the storage beam mates with an extension on the slide beam. The slide beam includes first and second lateral flanges. Roller members attached to the support beam and to the storage beam, roll along the inner tracks of the flanges to hold the slide beam adjacent the support beam and the storage beam adjacent the slide beam. A brake is provided comprising a rod extending the length of the storage beam and first and second member connected to the storage beam. Both members have an opening for slidable movement of the members along the tube.

Abstract: A supporting arm consists of telescoping sections (1-4, 17-19) which are mutually supported by roller bearings such as needle bearings (8) or ball bearings (25). The cross sectional shape of the sections (1-4, 17-19) is polygonal, so as to provide a high bending and torsional stiffness. By providing grooves in the supporting faces (10, 23, 24) of the sections, the strength characteristics as well as the behavior during telescoping under high loads may be enhanced.

Abstract: A pull-out guide assembly for drawers comprising a pull-out rail fastened to the drawer, a supporting rail fastened to the body of the piece of furniture and a center rail differentially running between said two rails on each side of the drawer. Running carriages which hold load-transmitting running rollers are arranged between said rails. Driving rollers which run on the supporting rails and on the pull-out rails are mounted on the center rails. The center rails have Z-profiles, and the supporting rails and the pull-out rails have U-profiles which are substantially half-covered.

Abstract: A roller-type linear guide includes a slider having side walls and mounted on a guide rail. The slider is provided with a pair of upper slider support members and a pair of lower slider support members, respectively, protruding obliquely from the inner surfaces of side walls thereof towards V-shaped track grooves formed in opposite sides of the guide rail. Each of the upper and lower slider support members includes a roller supported rotatably on the tip of a support shaft, and an eccentric bushing is fitted around the support shaft integrally therewith. The support shaft with the eccentric bushing fitted thereon is inserted into a fixing through hole which penetrates the side wall, obliquely, so that the roller is eccentrically supported with respect to the axial line of the fixing hole. The roller abuts against the surface of the V-shaped track groove of the guide rail with a preload to absorb looseness between the slider and the guide rail.

Abstract: A carriage and housing for a position sensing device of the type having a carriage for carrying a reader for reading the position of the carriage with respect to the housing along a position line of the device. The improvements include a carriage with five bearings to restrict the carriage to motion parallel to the position line. The carriage and housing are isolated in a frame of reference by the housing having first and second planar reference surfaces on which the bearings ride and first and second springs which urge the carriage toward the first and second reference surfaces by contact with first and second spring supports which form part of the housing and extend parallel to the first and second reference surfaces and the position line. A yoke moves the carriage but is isolated from the carriage by a five degree of freedom of movement connection. The yoke has arms with facing bearings which contact but float on planar bearing surfaces on the carriage which extend perpendicular to the position line.

Abstract: A one-piece metal mounting device for an adjustable or eccentric bearing of a precision slide system has a spigot forming a journal for the bearing and lateral extensions one of which has an elongate through bore for receiving a hexagon headed adjusting bush and the other has a cylindrical through bore for receiving a screw. The bush also receives a screw, both of which pass into blind threaded holes of a machine bed of the slide system. The device is mounted on the bed and adjusted in a plane parallel to the plane of the bed by adjustment of the bush.

Abstract: A sliding unit adjustable within wide limits for operating machines comprising at least one hollow guide made from an extruded structural shape installed inside supporting elements equipped with revolving elements, which cooperate with sliding surfaces of the hollow guide, with the support elements being positioned on portions of a base plate which can be adjusted both in height, and in the transversal direction relatively to said hollow guide.

Abstract: Two carriages are roller mounted to allow relative motion between them while maintaining precise relative positioning. Rollers engage precision ground spaced surfaces of a C-shaped hangar configuration, and wear compensation is provided by a spring bias arrangement maintaining conformity between the rollers and guide grooves in the underside of the rails.

Abstract: An accessory for a table saw comprises a plate having rollers thereon received in the parallel grooves of a conventional table saw. The rollers rotate about a vertical axis and act to guide the plate toward and away from the circular saw. A work piece is placed on the plate at a desired angle by an adjustable fence so that consistent, repetitive cuts in the work piece may be achieved.

Abstract: In a sliding unit for machine tools and/or portions of them, essentially comprising guides and supports, the ones being sliding relatively to the others and vice-versa, the guides are extruded hollow section bars with octagonal cross section, made of light alloy, and the supports bear rolling means, which cooperate with opposed surfaces of said guides.

Abstract: A guide for use in a string of sucker rods rotated in tubing in a borehole, each guide being formed of an elongated, upright, cylindrical coupling body having female threads at the upper and lower ends for attachment in a string of sucker rods, and including a plurality of at least three recesses in the body cylindrical surfaces, there being a recess in at least each 120.degree. quadrant around the body, an axle received in each recess, the axis of each axle being parallel and spaced from the body longitudinal axis, and a roller rotatably received on each axle, the periphery of each roller extending exteriorly of the external cylindrical surface of the coupling body, the rollers being conical shaped on each end, and the roller serving to contact the interior wall of tubing in which the sucker rod string is rotated to prevent wear of the tubing and the sucker rod string.

Abstract: A pull-out guide assembly for .[.drawers comprising.]. .Iadd.a drawer includes .Iaddend.a pull-out rail fastened to the drawer, a supporting rail fastened to the body of .[.the piece.]. .Iadd.an article .Iaddend.of furniture and a center rail differentially running between .[.said.]. .Iadd.such .Iaddend.two rails on each side of the drawer. Running carriages which hold load-transmitting running rollers are arranged between .[.said.]. .Iadd.the .Iaddend.rails. Driving rollers which run on the supporting .[.rails.]. .Iadd.rail .Iaddend.and on the pull-out .[.rails.]. .Iadd.rail .Iaddend.are mounted on the center .[.rails.]. .Iadd.rail.Iaddend.. The center .[.rails have Z-profiles.]. .Iadd.rail has a Z-shaped profile.Iaddend., and the supporting .[.rails.]. .Iadd.rail .Iaddend.and the pull-out .[.rails.]. .Iadd.rail .Iaddend.have .[.U-profiles.]. .Iadd.U-shaped profiles .Iaddend.which are substantially half-covered.