Abstract: A transport gear chain arrangement, in particular for the transport of glass articles, includes two gear chain sections (2 or, respectively, 3) successively following to each other in transport direction. In each case, transport gear chains (6), surrounding and looping around two sprocket wheels (7), are guided on a chain sliding track (26). At least one sprocket wheel (7) is driven in each gear chain section (2; 3). In order to decrease or increase the distance between neighboring articles to be transported on one of the gear chain sections (2 or, respectively, 3), two gear chain sections (2, 3), disposed successively as seen in transport direction (1), are drivable with differently set or settable speeds.

Abstract: According to the present invention, an improved conveyor or roller pulley is provided. A preferred embodiment of the invention comprises a roll core, having a lagging material attached thereto, with a multiplicity of longitudinally spaced drive surfaces, with helical grooves, formed in said lagging, adjacent which are tapered shoulder regions.

Abstract: An improved drive mechanism for a conveyor. An endless belt is mounted for travel on the frame of the conveyor and is driven by a drive unit. The drive unit includes a supporting structure or housing that carries a power source, such as a motor. The output shaft of the motor is connected by a flexible drive member to a pair of drive spindles that support the conveyor belt. The drive unit also includes a pair of belt tensioning spindles which are journaled for rotation on slides that are mounted for movement on the supporting structure of the drive unit. A drive mechanism, such as a fluid cylinder, is operably connected to the slides to move the slides in unison to tension the belt.

Abstract: A belt feeding assembly for feeding paper sheets. The assembly includes: a pair of side frames; an upstream shaft and a downstream shaft mounted in the side frames; a first timing pulley and a second timing pulley each having a one-way clutch for mounting on the downstream shaft; a third timing pulley and a fourth timing pulley each having a one-way clutch for mounting on the upstream shaft; a first timing belt mounted on the first and third pulleys; a second timing belt mounted on the second and fourth pulleys; and a device for driving the first and second timing belts, whereby when the first and second timing belts are initially driven at the start of operation, the one-way clutches enable the timing belts to properly and precisely seat in the timing pulleys.

Abstract: A portable stair lift system, for assistance in traversing short or medium length stairways, employs a pair of spaced elongated solid metal plates extending the stairway length and supported by a pair of vertically extending end brackets attached to a block of wood at each end thereof. An axle extends through each pair of end brackets and each axle supports a roller transversely disposed at the metal plate ends. At least one of these rollers is provided with a sprocket wheel secured to the axle between split roller segments. A reversible drive gear motor, drive chain connected to the sprocket wheel, drives the roller. A heavy duty conveyor belt is positioned about the pair of rollers. A passenger support system (either a chair seat or step segments) is secured to and movable with the conveyor belt. Manual switch means for controlling motor operation and direction are provided and actuatable by the passenger at any point along the stairway.

Abstract: A conveyor belt tracking and drive mechanism for use with a short, wide conveyor belt system. The mechanism has a stationary frame with first and second roller journaled for rotation at a first and second end of the stationary frame. A first moveable frame is pivotally suspended from the stationary frame. A second moveable frame is pivotally suspended from the first moveable frame. The second moveable frame has a drive roller and motor operatively connected to the drive roller. A micro-tracking adjustment screw, disposed between the first moveable frame and stationary frame, is used to adjust the tracking of the conveyor belt by laterally moving the first and second moveable frame. A belt adjustment screw located between the first moveable frame and second moveable frame allows one as to adjust the tension of the short, wide conveyor belt by movement of the power roller against or away from the short, wide conveyor belt.

Abstract: In one embodiment, the invention comprises at least one roller with a plurality of recesses in its peripheral surface, mounted on the drive and trailing assemblies of a conveyor system. The recesses of each roller are angularly disposed relative to the central axes of their respective drive or trailing assemblies and are sized to receive a portion of an endless conveyor belt contacting the rollers. The bottom and size walls of the recesses act against the engaged portion of the belt to propel the belt through the system, support the belt and maintain the belt in proper tracking alignment. The recesses are preferably distributed in circumferential rows about the periphery of the roller and, in multi-row rollers, in a parallel relation across the width of the roller. A method for estimating the optimum size and configuration of the rollers of the invention for helical woven wire endless belts is also provided.

Abstract: A conveyor constructing having a pair of spaced parallel side rails that support a conveyor belt, each of the side rails is provided with a pair of vertically spaced, parallel, longitudinal slots. Each slot is generally T-shaped in cross section and has an open side facing laterally outward of the side rail. The open side of the lower slot is offset laterally outward from the open side of the upper slot of the side rail. End units are associated with each end of the conveyor and each end unit includes a pair of spaced side plates having a belt supporting spindle journalled between the side plates. Slide blocks are mounted in the ends of the slots in the side rail and the side plates are disposed outward of the respective side rails and are connected to the slide blocks. Slide blocks can also be mounted in the slots and serve to connect auxiliary equipment at selected positions to the conveyor.

Abstract: A drive mechanism for a conveyor. The conveyor includes a frame and a drive spindle that carries a conveyor belt is journalled for rotation on the frame. The spindle has a longitudinal passage and a pair of bushings are disposed in spaced relation in the passage, with the adjacent ends of the bushings spaced apart. Each bushing has a non-circular or hexagonal-shaped opening and a similarly contoured end of a drive shaft is inserted into the opening of one of said bushings. The inner end of the drive shaft is provided with an axial recess and a plunger is located within the recess and is biased outwardly by a spring. A locking member is mounted in a radial hole in the wall of the inner end of the drive shaft and is engaged with a cam surface on the plunger.

Abstract: An apparatus for intermittently feeding a series of like articles along a path so as to present them in succession to a plurality of operation stations, where operations are performed upon the articles in sequence. The apparatus is provided with at least a pair of space drums mounted on parallel axis and a one piece non-metallic, substantially nonstructurable belt passing around the drums. The surface of the driven drum is textured to cooperate with the inner surface of the belt to prevent slippage therebetween. Longitudinal ribs may be formed in the inner surface of the belt.

Abstract: A self-unloading load hauling box for use on a towed carriage or carried by a powered mobile vehicle wherein the box is a rigid unit having a bottom wall with a floor plate and side walls and front end wall projecting up from the rigid bottom wall. An endless belt is looped around the bottom wall and runs on a driven roller at the rear end and an idler roller at the front end of the box. The endless belt is driven through an arc of selected length at spaced apart intervals to unload contents from the box. The jerky action from intermittently driving the belt has a tendency to cause a vibration, loosening the content in the box and thus results in a relatively even discharge during unloading. Between the upper run of the endless belt and the upper surface of the floor is a friction reducing pad which also absorbs shock loads tending to reduce damage to the belt and/or floor when loading heavy chunk material.

Abstract: An apparatus for handling and conveying packages includes a conveyor frame for housing a combination roller-slider bed and a belt mounted on the combination roller-slider bed to define a package-supporting conveyor surface. The conveyor drive includes a drive pulley in contact with the belt, a gearbox coupled directly to the drive pulley and an electric motor coupled directly to the gearbox. The shaft of the drive pulley is designed to fit within the output shaft of the gearbox. The motor and gearbox are mounted adjacent to but outside of the conveyor frame. Electrical or mechanical system associated with the apparatus controls the speed and acceleration of the belt.

Abstract: A portable conveyor system having multiple, separable, conveyor sections, a separable latching bridge mechanism disposed between and connecting each two adjacent conveyor sections, a single drive motor for the system, a belt driving gear arrangement on each end of each conveyor section for driving the conveyor belt, a pair of idling gears carried by each separable latching bridge mechanism and adapted to engage and connect the roller gears on adjacent conveyor sections when the latching bridge mechanism is employed to latch adjacent conveyor sections. Snugger rollers are provided to adjust the tension on the conveyor belt on each conveyor section.

Abstract: A machine having a belt conveyor (10) and the support structure (16) of which acts on a balance (4) arranged to measure the weight of objects (2) in transit on the conveyor (10); a geared motor unit (40) provided to supply the required rotary motion to the drive roller (12) of the conveyor (10), said geared motor unit (40) being positioned spaced from and to the side of the conveyor (10) and being supported, with the axis of its shaft (44) in a fixed position substantially parallel to the axis of the roller (12), by a fixed structure (5) which does not act on the balance (4) wherein between the shaft (44) of the geared motor unit and the shaft (14) of the drive roller (12) there is provided mechanical members arranged to transmit motion and to allow relative movement between the axis of the shaft (44) and the axis of the shaft (14).

Abstract: An impact damping devise for a conveyor traction wheel assembly adapted to support an elongated flexible drive member. The traction wheel assembly includes a periphery having a circumferential support surface. The impact damping device comprises an elongated generally elastomeric impact damping having a base adapted to extend along at least a portion of the circumferential support surface. The impact damping member further includes spaced apart sides, a radially outwardly facing surface adapted to define at least a portion of a circumferential surface for supporting the elongated flexible drive member and a hollow portion.

Abstract: An injection molding machine has a sorting device which is disposed under the injection mold and includes a swivel plate, which is pivotally movable by a motor-driven swivel drive to two mutually oppositely inclined positions for a delivery of usable moldings and for a delivery of rejects and sprues, respectively. In the position for a delivery of usable moldings, the delivery end of the swivel plate is disposed over an arrangement for receiving the usable moldings (belt conveyor). In the position for a delivery of rejects and sprues, the delivery end of the swivel plate is disposed over a disintegrator. The disintegrator includes a cutting mechanism, which constitutes a unit, which is removable out of the machine pedestal, and a motor-and-transmission block, which is disposed outside the vertical projection of the cutting mechanism. The sorting device is incorporated in a sorting unit, which is removable out of the machine pedestal.

Abstract: An apparatus for intermittently feeding a series of like articles along a path so as to present them in succession to a plurality of operation stations, where operations are performed upon the articles in sequence. The apparatus is provided with at least a pair of space drums mounted on parallel axis and a one piece non-metallic, substantially non-stretchable belt passing around the drums. The surface of the driven drum is textured to cooperate with the inner surface of the belt to prevent slippage therebetween. Longitudinal ribs may be formed in the inner surface of the belt.

Abstract: A device having a movable belt for transporting, for example, a recording medium, at least one rotary body around which the belt is wound so as to be supported thereon, and limiting portions or members for limiting the movement of the belt in the axial direction of the rotary body. The device is designed to stabilize the movement of the belt by making the friction between the limiting members smaller than the friction between the belt and the rotary body.

Abstract: A document conveyance apparatus for conveying a document to an exposing surface of a copying apparatus, and conveying the document out from the exposing surface after an exposure to copy the document. The apparatus including a driving roller unit for supporting and driving a conveyance belt, including (i) at least a pair of driving rollers, rotatably mounted on a conveyance frame with first supporters, for driving the conveyance belt suspended thereon, wherein at least one of the driving rollers is driven by a driving motor, (ii) the first supporters for supporting both ends of the driving rollers, wherein each of the driving rollers is supported movable in the direction of its axis of rotation so that at least one end of the driving rollers is capable of being removed from the roller supporters, and (iii) a positioner for being mounted on each of the driving rollers so that each of the driving rollers is positioned in the direction of its axis of rotation.

Abstract: A device for transferring objects, such as filled bags, from a conveyor to a collection device, such as a box, placed below the conveyor comprises two conveyor belts (1, 2) placed adjacent to each other. In the conveying position, the top parts of said conveyor belts together form one conveying face. Each of the conveyor belts (1, 2) is disposed on a tiltable frame (4). In order to make the drive of the conveyor belts (1, 2) extremely simple and to make it possible to adjust the conveyor belts at right angles to their direction of conveyance, the drive comprises a drive pulley (3) acting upon the top part of the belts (1, 2) in the conveying position thereof.

Abstract: A dual drive conveyor system with improved traction in which two drive pulleys are rotatably coupled together by two drive wheels with one of the drive wheels comprising a resilient deformable wheel and the other comprising a smooth non-deformable wheel. The outer surfaces of the drive wheels permit minor slippage therebetween to compensate for differences in peripheral velocities of the drive wheels and minimize wear of the conveyor belt, drive wheels and drive pulleys.

Abstract: Drive apparatus for driving an endless moving conveyor belt for a power turn to change the direction of movement of articles in a transfer conveying system wherein the plurality of rolls at each end of the power turn over which the endless conveyor belt passes have a diameter less than about one inch. An endless chain is attached to the endless moving conveyor belt for movement therewith. A drive shaft is provided adjacent to each end of the power turn and has a drive roll having a tapered outer surface and a drive sprocket mounted thereon for rotation therewith. A snub roll shaft is provided adjacent to each end of the power turn and has a snub roll integral with the snub roll drive shaft and having a tapered outer surface and a snub roll sprocket mounted on the drive roll snub shaft for rotation therewith. An idler sprocket is mounted on the outer side wall adjacent to each end of the power turn.

Abstract: An escalator handrail is driven by a pair of angularly offset rollers. The angular offset of the rollers causes a wedging effect at the roller nip whereby the driving force imparted by the rollers to the handrail is increased.

Abstract: The present invention relates to a transport roller consisting of elastic material with a rotation shaft of nonelastic material located in a central cavity. In order to optimize the functional properties such as degree of elasticity, resistance to wear and mechanical load-bearing capacity, the roller body (1), which consists of open-cell foam, is closed on its surface by a skin (2) of resilient material which forms an outer surface of the roller and anchors itself by engagement in the foam pores (7).

Abstract: A high speed, normally closed tubular belt conveyor system operable over long distances and through relatively short radius horizontal and vertical turns. The belt conveyor is prestressed at fabrication to provide a normally closed tubular configuration. Profiled end pulleys are provided which open the belt for loading and unloading with minimum strain and distortion. A distributive drive system provides reduced longitudinal tensile stresses in the belt and facilitates high speed operation. A feeder-accelerator system loads granular-type material into the tubular belt at a rate and velocity which are conformed to the capacity and velocity of the belt.

Abstract: A sprocket drive system for a chain conveyor comprises a motor driven transmission which is coupled to a planetary gear unit for speed reduction. The output sprocket is located near the center between the motor and the planetary gear unit. To make the combination more compact in size and efficiency, the drive from the motor is transmitted by means of a shaft coaxially through the drive shaft of the planetary gear unit and through the drive shaft of the transmission unit. The coaxial shaft is then coupled to the transmission unit input shaft. The transmission output shaft is coupled to the planetary gear box and then to the drive sprocket.

Abstract: The present invention is directed to a conveyor belt system for transporting materials by directly driving a conveyor belt. This is accomplished by directly driving a plurality of clips attached at their inner end to the belt and securedly coupled at their outer end to a pair of continuous cylindrical cables. Even though the belt is directly driven, the subject conveyor system can effect continuous relative movement between the conveyor belt and cables, thereby compensating for differences in the respective lengths of said belt and cables and in the configuration of the respective drives. This is accomplished in great part by the novel construction of clips of this invention which is designed for facilitating secured engagement with the cables and effective and efficient movement of the conveyor belt. This results in the continuous, uninterrupted transportation of the materials carried by the conveyor belt for extended periods of time.

Abstract: A cable conveyor for transporting articles through a curved path of transport is disclosed. The conveyor has a plurality of pulley assemblies rotatably mounted on a conveyor frame. A cable tangentially contacts and is guided by each successive pulley assembly. The cable carries and transports the articles as it is pulled through a path defined by the pulley assemblies. The pulley assemblies may be spaced so that the path they define is shaped substantially the same as the shape of the conveyor frame. The conveyor may provide a spiral path of transport so that the articles may be raised or lowered. Alternatively, the conveyor may provide an arc to transport the articles from one direction of transport to another.

Abstract: In order to achieve the ability to negotiate curves, the toothed-belt-like conveyor belt is formed in the plane of the conveyor belt by plates, which consist of a rigid, hard plastic, are at a distance from each other in the longitudinal direction of the belt and have a driving cog molded to their underside. Along the center line of the belt, the plates are connected together by a narrow rib, which is molded to the underside of the plates, is continuous in the longitudinal direction of the belt, stands out from the underside of the plates, consists of a soft, rubberlike, elastically deformable plastic, and contains an embedded tensional reinforcement.

Abstract: A variable slope, cleated channel belt conveyor includes a bed, a bottom pan, and an improved elongated cleated belt. The belt extends around a drive and an idler or take-up pulley and includes a plurality of separate cleats to sweep particulate material along the bottom pan and upwardly onto the belt's top surface by means of a hood extending around the pulley of that end of the conveyor. This prevents build-up of particulate material in the bottom pan. The hood can be pivoted away from the belt to permit reverse operation of the conveyor, and hoods can be mounted at both ends to further accommodate a reversing operation. A universal, adjustable mounting permits the motor and gear box to pivot and thus remain level despite conveyor inclination.

Abstract: A pallet track for supporting a plurality of pallets for gravity movement along an inclined path with the pallet tracks including a speed retarder or brake associated with an endless chain conveyor assembly having an upper flight supportingly engaging the under surface of a pallet. The conveyor assembly chains are constructed with a plurality of pivotally interconnected components with each of the components including offset mating edge portions receiving a pivot pin which also serves as an axle for a roller which has a periphery depending below the inner surfaces or edges of the chain for supporting engagement with a backing rail or track and also for engagement in peripheral notches in end sprocket wheels. A plurality of the pallet tracks are arranged in longitudinal alignment to form the inclined path with a conveyor chain being disposed in underlying relation to each end portion of the pallet generally in alignment with the pallet stringers.

Abstract: A self tracking web drive is provided wherein the roller with the friction drive in the center decouples all but a very limited width portion of the belt from the roller. By doing this, the flanges on a second roller cause the belt creep direction to reverse relative to the central high friction drive and move in the opposite direction.Depending on the alignment of the roller axes, the belt will either walk slowly to one side, then to the other, or to walk to one side, retreat and gradually self-adjust to track close to the flange or just off it.In fact, a thin driving high-friction area on one roll reduces the contact width between roller and belt and thereby tricks the wide belt into acting as if the width to pulley spacing was 10:1 or greater and becoming self tracking.

Abstract: A conveyor means including axles 14, on which the drums 17 for an endless conveyor belt 18 are rotatably mounted, and which extend within a chassis. The chassis includes a core 10 disposed between the upper and lower belt runs 18a, 18b of the conveyor belt 18 and between the drums 17, and two side walls 11 which are secured to the longitudinal sides of said core. A hydraulic drive motor is disposed between the belt runs 18a, 18b and extends parallel to a drum 17. This arrangement permits the conveyor means to be a compact, structural unit which can be completely assembled externally of the machine base, can be tested for reliable running and can then be inserted into the narrow discharge passage of the machine base.

Abstract: A log debarker having a frame, a stator supported by the frame, a rotor journaled in the stator for rotation about a longitudinal axis of the rotor, a rotating mechanism for rotating the rotor about the longitudinal axis, a plurality of debarking tools attached to the rotor, and a feeding system for feeding logs axially through the rotor. The feeding system includes a plurality of log gripping rollers positioned for rolling contact with the log, and individual hydraulic motors are operatively connected to the log gripping roller for rotating the log gripping roller. Each of the hydraulic motors is adapted to rotate its log gripping roller at different and variable rotation speeds to accommodate logs of uneven surfaces. A hydraulic fluid supply system supplies each of the hydraulic motors with fluid so that the different and variable hydraulic fluid requirements of each of the hydraulic motors necessitated by uneven log surfaces are satisfied.

Abstract: A livestock feeding apparatus having an endless belt supported on an elongated table above a feed bunk by a plurality of stands. The stands are laterally and vertically adjustable to level the apparatus and accommodate different sized bunks. The belt has an upper run that rides on a wood deck secured to the support. An idler pulley and drive pulley engages one end of the belt opposite ends. The belt is retained in driving engagement with the drive pulley by a driven roller engageable with the lower run of the belt adjacent the drive pulley. A motor drives the roller at a speed so that the surface speed of the roller is greater than the linear speed of the belt to maintain the lower portion of the run of the belt between the roller and the drive pulley under tension. A sweep assembly slidably mounted on the wood deck operates to move the material off of the side of the top run of the belt into the bunk.

Abstract: To permit unloading and release of statically stored dynamic energy in a run of a loaded conveyor, e.g. a mining conveyor belt, the return stop mechanism or back-run safety mechanism is coupled to a fixed structure, such as a frame (50, 73, 89) through a releasable friction coupling which is formed by a two-part holding ring (48, 49; 71, 72; 87, 88) coupled to the frame, and having facing inwardly directed surfaces which can be clamped, by controlled friction force against facing surfaces of an outer operating ring (45, 64, 84) of a ratchet or other one-way clutch or drive to prevent back-run or a return stop for the conveyor. Upon controlled release of the frictional engagement, for example by counter-acting spring force or releasing a spring force, the friction surfaces are permitted to slip, thus permitting dissipation of stored energy in the conveyor, for example due to sudden stoppage upon malfunction or external interference, for example by rocks, boulders or the like.

Abstract: An amusement ride has rails defining a longitudinal travel direction along which a car is displaceable. A longitudinally extending drive member secured to this car is engageable by drive members which rotate to displace the car along the rails in the longitudinal direction. This member comprises at least two generally parallel, longitudinally extending, and vertically spaced chains each formed of a longitudinal succession of links and a plurality of longitudinally succeeding rigid segments each having a pair of transversely bolted-together halves flanking the chains. The halves of each segment are complementarily formed to and encase a respective plurality of the chain links.

Abstract: A conveyor drive system including an improved control circuit for a glass manufacturing apparatus transports a glass sheet through a glass processing station. The conveyor drive system includes first and second conveyor drives disposed on opposed lateral sides of the station. Each of the conveyor drives includes first and second pulleys and a continuous drive loop trained thereover. The glass plate is supported on a plurality of elongated rollers that extend between the conveyor drives and have their opposed ends supported on and in frictional engagement with the continuous drive loops. A drive motor applies drive torque to the first pulleys, and a pair of counter-poised drive motors apply a counter-torque to the second pulleys. The control circuit for controlling the energization of the first drive motor and the pair of counter-poised drive motors includes a feedback circuit which provides degenerative speed feedback for stabilizing the motion of the conveyor drive system.

Abstract: A floating power transmission ring gear whose inner periphery is supported through its gear mesh with a pinion and whose outer periphery is engaged with a belt, to increase the belt's bending diameter without a corresponding increase in the belt's travel per pinion's revolution.

Abstract: A tandem drive assembly, sometimes called a drive or head section, for a belt conveyor having a pair of drive pulleys arranged in tandem, in which the main drive frame comprises separate, ground-engaging, foot members located respectively inbye and outbye of the drive pulleys, and a pair of longitudinal side members interconnecting the foot members. In the example illustrated, the side members are I-beams angularly inclined upwardly from the outbye foot member to the inbye foot member. The drive pulleys are rotatably journaled in bearings mounted on upper, angularly inclined surfaces of the side members to support the inbye drive pulley at a higher level than the outbye drive pulley. The lower surfaces of the side frames are likewise angularly inclined and provide ground level clearance through the sides of the main frame for access by a scoop or shovel to the area beneath the drive rollers where dust and fines are deposited by the conveyor belt.

Abstract: A lagging body for a belt conveyor pulley comprises a wide and long rubber substrate and a number of rectangular or square small plate-like ceramic lagging elements aligned in the lateral and longitudinal directions and secured on the surface of said wide and long rubber substrate having a given thickness, wherein a lagging element is produced by adding an inorganic bonding agent essentially consisting of glassy material to ceramic particles, molding the resultant particles into a rectangular or square small plate-like article and firing or sintering the small plate-like article, and a number of the lagging elements are aligned on the surface of a wide and long length rubber substrate in the longitudinal and lateral directions and secured thereon.

Abstract: A conveyor system which includes at least one drive sprocket and a plurality of idler sprockets to mesh with a continuous conveying member adapted to carry the work load. Support structure is provided for mounting the sprockets thereon in a predetermined arrangement in position to mesh with the conveying member to drive and guide the conveying member along a predetermined path. The sprockets are capable of variable pitch adjustment to accommodate for a pitch variation in the conveying member and adjust the sprockets to continue to mesh with the conveying member over a continuing period of use.

Abstract: A conveyor for transporting wood slabs and the like comprises a plurality of spaced-apart rails each carrying an endless loop of chain routed around a respective drive sprocket and an idler roller and a plurality of further idler rollers support the upper course of the chain above the upper edges of the rails. Each chain comprises inter-linked oval links, so that the links lie in perpendicular planes, with links lying in vertical planes extending into recesses in the sprockets and idler rollers.

Abstract: A conveyor drive for a glass manufacturing system transports a sheet of glass through a tempering station on a roller bed. The conveyor drive includes a pair of pulleys mounted at opposed ends of the tempering station. A continuous drive loop is trained over the pair of pulleys and engages the roller bed so that rotational motion of the pulleys is imparted to the roller bed. One pulley is driven by a motor to transport the glass through the station. The other pulley drives an electrical generator connected to a dissipative load. The generator and load provide an adaptive counter-torque to the other pulley in direct relation to its rotational speed. The counter-torque stabilizes the conveyor drive to prevent slip-stick friction from disrupting the transport of the glass sheet.

Abstract: A driving mechanism for driving a moving handrail of an escalator and the like. The driving mechanism include driving rollers and guiding rollers which are disposed to confront with each other through the moving handrail interposed therebetween. The driving rollers are secured to a movable plate, while the guiding rollers are attached to fixed plates. The movable plate is adapted to be moved in the direction perpendicular to the moving handrail, while the fixed plates are firmly secured to a part of a truss frame which supports the escalator. The movable plate carries a sprocket by means of which the driving rollers are rotated to drive the moving handrail. The sprocket itself is adapted to be driven by a chain going therearound. The vertical component of the tensile force residing in the chain acts to press the driving rollers onto the moving handrail.

Abstract: For use primarily in a conveyor system wherein articles are required to be propelled along a predetermined path by driven belt means, the invention provides a pulley assembly having a rim member movable into and out of contact with the belt means responsive to a cam which is actuated by the propelled articles. The pulley assembly may itself directly drive the belt means or it may contact and thus drive the propelled articles or it may contact rollers in said predetermined path and upon which said articles rest.

Abstract: A conveyor for conveying generally cylindrical containers having an opening at one end and closed at the other end, the conveyor comprising an endless belt provided with flanges for engagement by driving and guiding pulleys and container-supporting elements attached to the belt at regular intervals therealong. Each supporting element includes at least one portion forming a partition extending transversely of the belt and at least one portion forming a bearing for the closed end of the container, the bearing portion extending perpendicular to the belt and parallel with the edges of the belt. The supporting elements forming with the belt a succession of seatings for receiving containers which will be maintained in place when the belt is vertical or inclined to tilt the supporting elements upwardly.

Abstract: The disclosure is of a friction drive wheel of the type employed for driving continuous conveyor belts. The wheel is lagged with a textile fabric which comprises a base of woven polyester yarn and a friction surface of polyester textile fibers needled to the base. The lagged wheels of the invention exhibit enhanced durability over prior art frictional drive wheels, reducing the down time of conveyor units incorporating them. In comparison to asbestos lagged drive wheels there is also a reduction of potential health hazards to operating personnel as will be appreciated by industrial health personnel.

Abstract: Ribbing configuration for use on a tracking roller for positive belt traction in which the roller's cylindrical surface has shallow V-shaped grooves defining lands which spiral oppositely outward from the center of the roller.

Abstract: An abrasion resistant traction article is made, comprising a cured, high traction, extended polyurethane composition, comprising the cured reaction product of: (1) 100 parts of a prepolymer made from polyoxytetramethylenediol, polyoxyisopropylenediol and tolylene diisocyanate and (2) 8.0 parts to 10.0 parts of methylene bis(o-chloroaniline), acting as a chain extender.