Abstract: A dispenser for dispensing tape, particularly a ribbon of tape, from a roll uses guide and feed rollers to define the path of the ribbon, at least sufficient of these rollers are shaped to apply a significantly higher unit tension to the ribbon along a central longitudinal portion of the ribbon than is applied along the longitudinal side edge portions of the ribbon on opposite sides of the longitudinal central portion so that forces tending to tear the tape adjacent to the side edges of the tape are significantly less than the forces in the center whereby breakage of the tape is minimized.

Abstract: A stacking device in a printer or copier for stacking a strip-like, prefolded recording medium has, as feed arrangement, a motor-driven feed roller (13) and a plurality of adjacently arranged pressure rollers for pressing the recording medium (10) against the feed roller (13). The two outer pressure rollers (16/1, 16/2) in respect of the edge regions of the recording medium are designed as guide pressure rollers which change their inclination of the axes of rotation in dependence on the transporting direction of the paper or recording medium and thus make the recording medium taut between the guide pressure rollers. This prevents undesirable bunching, creasing or deformation caused by slack in the paper between the pressure rollers. In order to achieve this change in the inclination of the axes of rotation, the guide pressure rollers (16/1, 16/2) contain an eccentric axle arrangement.

Abstract: A feed apparatus for feeding a film has a pair of presser guide members for pressing a film F against an outer circumferential surface of a feed drum, a pair of upstream and downstream guide plates for guiding the film F, and a moving mechanism for moving a pair of nip rollers toward and away from the feed drum. When the film F is scanned by a light beam, the film F is tautly held against the outer circumferential surface of the feed drum. The moving mechanism has first and second displacing mechanisms actuatable in synchronism with vertical movement of the nip rollers toward and away from the feed drum for displacing the presser guide members and the upstream and downstream guide plates toward and away from the feed drum.

Abstract: A safety apparatus for use with a fiber processing unit having a plurality of rotating godet rollers. The apparatus includes a safety gate, positioned between an operator and the godet rollers, having a plurality of apertures through which a long-handled cutting tool may be extended. A plurality of guides mounted to the frame of the godet unit, each extending adjacent and substantially parallel to one of the godet rollers, limit the range of movement of the cutting tool to the proper position for cutting wrap from the godet rollers.

Abstract: A device for measuring tape tension for use in a tape recorder utilizes a guide pole having an external surface portion thereof coated with a piezoelectric material to detect the tape tension.

Abstract: The density of winding of tape onto a reel at high winding speeds is improved by oscillatory longitudinal translation of a portion of the tape, to induce tape tension oscillations. This substantially precludes slipping of the layers on the reel. To initiate the tension oscillations, a tape tension controller in a video tape recorder is vibrated by a motor whose torque is varied periodically. In another embodiment, the spindle of a guide roller is mounted for eccentric rotation by a drive motor.

Abstract: A wire feeding system, for use with apparatus that processes the wire in conjunction with intermittent advancement of the wire, the feeding system operating to de-reel the wire from a reel and supply the de-reeled wire to the apparatus, the system comprising wire drive structure to positively advance the wire; lost motion structure between the wire drive structure and the wire processing apparatus to maintain the wire taut during intermittent operation of the wire processing apparatus; and the wire drive structure comprising belt loop structure having elongated wire gripping stretch structure. Adjustability of the belt loops is also provided, along with use of associated wire guide means for wires of different diameters.

Abstract: A web transporting device usable in a rotary printing press or folder, includes a rotatably driven transport roller having a fixed axis and at least one engagable nip roller having an axis substantially parallel to the fixed axis and being engagable with the driven transport roller. The engagable nip roller has a length corresponding to a maximum width of the web processable in the printing press. A removable nip sleeve is provided which is axially mounted on the engagable nip roller. The removable nip sleeve has an least one ring-shaped annular gap disposed axially along its length which allows the web to ripple as it passes through the web transporting device without causing permanent wrinkles or creases to form in the web. A counterbalancing mechanism is also provided which stabilizes the engagable nip roller in a maintenance position as the removable nip sleeve is replaced.

Abstract: In a tape transport portion of a tape recording and reproducing apparatus, the height of a tape is regulated without applying an excessive force to the tape. In a tape guide roller having a roller (9) which is brought in rotatable contact with a tape (2) and a flange (10) which regulates the height of the tape (2), the flange (10) has a tapered surface (15) opposing the inner surface of the tape (2) and a force for regulating the height of the tape (2) is generated by the cooperation of both a tape regulating end face (13) of the flange (10) and the tapered surface (15). Since the tape height regulating force is generated by two different parts, i.e., the tape regulating end face (13) of the flange (10) and the tapered surface (15), the tape (2) can be prevented from being buckled by a force applied thereto from a tape regulating end face of a flange. Thus, the tape guide roller does not damage the tape.

Abstract: An oscillatable web guide roll and method of winding uses a cylindrical roll (A) with as recess at one end for receiving a cylindrical cam (C) upon a shaft which forms part of a mounting (B) for the cylindrical roll so that a cam follower (D) fixed to the cylindrical roll may be positively guided by the cam to produce oscillatory movement of the cylindrical roll (A) thus oscillating the web along its longitudinal axis during the building of the web roll.

Abstract: A tape guide roller for a tape cassette comprises an inner cylindrical body including a flange portion projecting from the outer circumference on one end thereof, and a synthetic resin injection portion provided at the outer circumferential surface at the other end thereof, the inner cylindrical body being molded by injecting synthetic resin from a direction substantially perpendicular to the axial direction thereof and an outer cylindrical body having an inside diameter such that it fits tightly over the inner cylindrical body, and includes a synthetic resin injection portion provided at the outer circumferential surface on the end side thereof opposite to the end side which serves as the insertion end for the inner side cylindrical body. The outer cylindrical body is molded by injecting synthetic resin from a direction substantially perpendicular to its axial direction through the synthetic resin injection portion.

Abstract: A carriage support system for a computer driven printer/plotter employs a slider rod and a slider bar mounted parallel to each other on a printer chassis wherein the bar supports the front side of a printer carriage and the rod supports the rear side of the carriage thus eliminating expensive centerless ground carriage support rods. The slider bar also has a plurality of dual edge paper pinch wheels supported thereon which are biased into engagement with the paper or other medium on which printing takes place by a plurality of springs integrally formed from a single member affixed to the slider bar.

Abstract: The press guide roll (15) or web guide roll (4) comprises a fiber-reinforced plastic roll tube (20; 6) and a wire layer (7) wound on the surface of the roll tube (20; 6) in order to form substantially peripherally directed grooves (17). On either side of the roll middle (M), complementary sections (7b, 7c) of the windings (7) are inclined slightly relative to the peripheral direction and thus form a wire layer which is mirror symmetrically disposed about the roll's middle plane (M). The web guide roll (4) therefore laterally guides and automatically centers the material web.

Abstract: A rope traction device used as a winding instrument for a moving scaffold and other construction, loading and unloading and conveying machines, includes a sheave which is rotated by a motor through a speed reduction gear and around which a part of a traction rope is wound, and is movable along the rope by rotating the sheave. The sheave is provided with a rope groove formed by a pair of parallel and planar side plates substantially along the entire circumference of the sheave for receiving a part of the rope therein and resiliently pressing the rope on its side portions. The rope traction device includes an improved brake system according to which slots elongated in the circumferential direction are formed in each clutch member and each slot has a greater depth axially in the central portion thereof than in other portions.

Abstract: A fabric take-off roller arrangement for flat bed knitting machines is provided with a driven fabric take-off roller that has roller elements disposed next to each other in the axial direction. To ensure that, even with irregular thickenings of the fabric to be taken off, engagement of the fabric take-off roller arrangement is provided both in the region of the thickening and in the adjacent region(s) of the fabric to be taken off, it is provided that the roller elements engage one another in a co-rotational manner at their ends facing one another and are rotatably held on respectively one support carrier, that the support carriers are pivotably held in a direction perpendicular to the orientation of the roller elements that the ends of the roller elements facing each other are flexibly seated against each other as well as in the support carrier, and that the fabric take-off roller is pressed against a counter-roller, between which rollers the fabric run is taken off.

Abstract: An apparatus and method for forming wire bundles from a plurality of wire or cable is provided. A plurality of wires are withdrawn from a rack and simultaneously measured by a linear counter. The wires are cut at various positions to provide a bundle having beginning and ending points for the bundle as desired. A driven pulling spool is used to guide the bundle along a desired path. The pulling rope is preferably attached to the bundle by an inflatable bladder. Rollers for guiding the cable include flared end flanges with diameters equal to the shaft diameter of the roller.

Abstract: A flange of a tape guide has a guide for guiding tape with its circumference, independently of this an adjusting arrangement is provided on a base supporting the flange to allow varying slant of cylindrical portion of the guide, and the flange is pushed to the base. Slant of an upper flange of the tape guide can be adjusted easily and securely. This will not give excessive ruling force to the tape to prevent the tape edges from being damaged.

Abstract: Roller guides made of a ceramic matrix reinforced with monocrystalline whiskers with a cylinder-and-post configuration exhibit long useful operating lives when guiding metallic wires, braids, or ribbons.

Abstract: An automatially tiltable small roller structure of slide bearing type for video tape recorders which has a small roller (10) including an elastic rubber cylinder (11) and a sleeve (12) integral with the inner periphery of the cylinder, the sleeve having a lower inside diameter surface (13) and an upper inside diameter surface (14) with a smaller diameter the former to form a stepped portion (15) inside the sleeve (12), an outer race (21) fitted to the stepped portion, a row of bearing balls (23) fitted in the outer race and located at a middle point between the opposite ends of the sleeve, a shaft (30) having a lower shaft portion (31), an upper shaft portion (32) having a smaller diameter than the lower shaft portion and a tapered surface portion (33) extending between the two shaft portions, the bearing balls being provided such that they are brought into rolling contact with the tapered surface, a region of the upper shaft portion adjacent thereto and the inner peripheral surface of the outer race and firs

Abstract: A pusher system (12) extracts a wire (11) from a reservoir (10) and feeds the wire through a wire guide (13) to a puller system (14). The puller system then feeds the wire (11) through a tip (15) to the welding operation represented by an arc (16) and a work piece (17). The pusher system (12) has a motor (20) adjusted so as to feed the wire (11) at the desired rate. A pair of rollers (22), which are driven by the motor (20), are designed to slip on the wire (11) if the wire becomes jammed or blocked. The puller system (14) has a limited torque motor (30). The limited torque motor (30) drives a pair of rollers (32) which firmly grip the wire (11) and do not slip on the wire (11). If the wire (11) becomes blocked or jammed then the motor (30) will stall. The combination of the pusher system (12) and the puller system (14) provides a wire feeder which does not damage the wire (11) and which does not cause birdnesting if the wire is jammed or blocked.

Abstract: A tape driving mechanism for a magnetic recording apparatus has a capstan rotated to advance a magnetic tape by pinching the magnetic tape between the capstan and a pinch roller. The pinch roller is pressed onto the magnetic tape against the capstan. The capstan surface is coated with a diamond-like carbon film which is smooth and highly wear-resistant. The difference between the tangential speed of the capstan and the tape transfer speed is almost zero. Thus, the state of contact is static. A static frictional coefficient between the diamond-like carbon film of the capstan and the magnetic tape is almost equal to twice the static frictional coefficient between the metal surface of the capstan and the magnetic tape in the conventional tape driving mechanism. The tape driving force thus remains sufficient even if the pressure exerted by the pinch roller is reduced to half the value employed in the conventional tape driving mechanism. The diamond-like carbon film may be coated on a rough surface of the capstan.

Abstract: A wire feeding system, for use with apparatus that processes the wire in conjunction with intermittent advancement of the wire, the feeding system operating to de-reel the wire from a reel and supply the de-reeled wire to the apparatus, the system comprising wire drive structure to positively advance the wire; lost motion structure between the wire drive structure and the wire processing apparatus to maintain the wire taut during intermittent operation of the wire processing apparatus; and the wire drive structure comprising belt loop structure having elongated wire gripping stretch structure. Adjustability of the belt loops is also provided, along with use of associated wire guide means for wires of different diameters.

Abstract: A wire transport apparatus has a pair of rollers having opposed peripheral running surfaces which at their nip contact the wire to drive it, one of said rollers being driven. The driven roller is mounted on an arm swingable about a pivot axis. The arm also carrying a coupling pulley connected to the driven roller to drive it in rotation. The coupling pulley is itself driven in rotation by an endless flexible element whose tension tends to cause said driven roller to apply load to said wire. In order that variation of the tension in belt also adjusts the normal force applied to the wire by the driven roller, the pivot axis is parallel to the direction of wire travel, and the driven roller and the coupling pulley are on a common rotational axis perpendicular to the pivot axis, at different distances from the pivot axis. Excessive force on the wire is avoided, and wear is minimized.

Abstract: A hauling block 20 having a sheave 30 comprising two identical halves 32 and 34. The hauling surfaces 40 and 42 of the sheave 30 carry outwardly extending, cleat receiving pockets 54. Reinforced cleats 50 are seated in the pockets 54 and releasably fastened to the sheave 30.

Abstract: A differential capstan roller for a thermal printer is provided by dividing a capstan roller into first and second end segments, and an intermediate middle segment drivingly engageable with a drive shaft to drive the middle segment, and gearing the first and second end segments together differentially. The first and second end segments are driven with the middle segment through the gearing so that the average velocity of the end segments is equal to the velocity of the middle segment at any instant in time but the velocities of the two end segments are not always equal to each other.

Abstract: A profiled rod for a web-spreading roller has an elongated basic body of approximately C-shaped cross section with holding legs on both sides and with a friction-grip elastic support on its back. The support is fastened to an intermediate support made of stiffer material than the support itself and the intermediate support is pushed lengthwise onto the basic body and detachably fastened to its back and holding legs with a clamping claw.

Abstract: A rope traction device used as a winding instrument for a moving scaffold and other construction, loading and unloading and conveying machines includes a sheave which is rotated by a motor through a speed reduction gear and around which a part of a traction rope is wound, and is movable along the rope by rotating the sheave. The sheave is provided with a rope groove formed by a pair of side plates substantially along the entire circumference of the sheave for receiving a part of the rope therein and resiliently pressing the rope on its side portions. In one aspect of the invention, the rope traction device includes an improved brake system according to which slots elongated in the circumferential direction are formed in each clutch member and these slots have a larger width axially in the central portion thereof than in other portions.

Abstract: A system for establishing the lateral position of a web without requiring the web path to change direction. The system utilizes a support surface that is curved in its transverse direction concave towards the web, a guide extending longitudinally along the surface, and a roller that is positioned against the support surface so that the web will be urged laterally against the guide and will conform to the curvature of the surface, thereby increasing the lateral column strength of the web.

Abstract: In a roller for guiding and stretching bands and/or film webs (21) for winding apparatus (FIG.

Abstract: Redirect rollers are fitted with non-rotating upstanding fins to provide enhanced guidance for spaced tows which wrap the rollers.

Abstract: Apparatus for longitudinally driving an elongate body (1) such as a rod or tube, comprises two opposed wheels (2) adapted to clamp the body (1) between them. The wheels (2) have an axis of rotation (3) lying substantially in a transverse plane of the elongate body (1). A drive (1) drives at least one of the wheels, wherein the wheels are adapted to transform the rotating movement of the wheels into a translating movement of the elongate body by means of friction. According to the invention the wheels (2) include a plurality of successive movably mounted intermediate pieces (12) circulating with the wheels and being supported by the wheels during the engagement with the body (1), the intermediate pieces (12) successively enabling the wheels (2) to engage the elongate body (1) a distance in longitudinal direction.

Abstract: A wire cut electric discharge machine (1) having an improved wire guide means (17) located at a bent portion of a wire path. The wire guide means (17) comprises a wire guide roller (6) and a wire deviation preventive member (16) whose one end is fixed to the side of body (3). A part of a retaining member (22) provided in the wire deviation preventive member (16) is fitted into a wire fitting groove (20), and a retaining groove (27) is formed on a face of the retaining member (22) located opposite to the bottom of the wire fitting groove (20). Further, the retaining member (22) is disposed to define, between itself and a wall (26) of the wire fitting groove (20), a clearance having a dimension slightly larger than a wire diameter.

Abstract: A web guide roller assembly for a printing machine utilizes a cylindrical roller support body and a concentric hollow roller body. An annular space between the support body and the roller body is filled with a pressure medium so that the roller body floats on the support body. Suitable end seals are utilized to prevent escape of the pressure medium.

Abstract: A roller over which advances a web of material such as paper, photographic film or the like includes a plurality of staves organized in first and second arrays with the staves of the first array alternating with the staves of the second array to provide surfaces for supporting the web. The staves are each individually mounted on the roller by separate spring legs which center the staves. Flanges are located at the ends of the roller to position the web laterally. When the web obliquely approaches the axis of the roller so as to helically advance thereover, the staves sequentially and independently shift axially due to engagement with the helically advancing web. After the web leaves the roller, the stave that the web was most recently supported by returns under the bias of the spring legs to its central, unbiased position. In this way, damage to the edges of the web, due to engagement with the flanges, is minimized.

Abstract: A suction roller arrangement for transporting web-form material consisting of a roller body in the form of a hollow cylinder of porous sintered metal, the inner space beneath the looping angle of the web being under reduced pressure. The problem of converting the torque required to transport the web with minimal reduced pressure while, at the same time, protecting the surface of the web is solved by making the pore diameter in the middle cylindrical zone of the roller larger than in the two peripheral zones and by giving the outer cylinder surface of the roller a smooth surface finish by lathe-turning, grinding and polishing. The stator in the inner space of the rotatable roller is polygonal in shape in the region of the looping angle and has different distances from the rotor.

Abstract: A pull wheel for a form, fill and seal pouch packaging machine has a hub that includes an axially extending central bore and a circumferentially extending peripheral surface that is located radially outwardly from the bore. First and second circumferentially extending flanges are formed integral with and extend radially outwardly from the peripheral surface of the hub. The first and second flanges are axially spaced apart one from the other on the peripheral surface of the hub forming a groove between them. An integrally formed, annular shaped elastomeric body is located radially outwardly from the hub in part within the groove and in further part over and radially outwardly displaced from the first and second flanges such that the periphery of the elastomeric body is displaced radially outwardly from the periphery of the flanges.

Abstract: A conveying mechanism, particularly useful with a printed-circuit board laminator, in which the board is conveyed by several conveyor rollers having a small gap against several guide members, such as rollers, to accommodate the board and prevent its warping. A sliding device aligns the board as it is transported by the rollers.

Abstract: A guide roller for guiding a tape being moved in contact therewith, which has a metal cylinder and a resin portion is able to augment a inertial moment of the roller guide without increment of the diameter of the guide roller to absorb the vibration of the tape.

Abstract: An expander roller for running webs of paper, textile material or the like has a straight metallic or plastic core and an outer layer consisting of two helically convoluted strips of rubber or other elastomeric material. The two convoluted webs are mirror images of each other with reference to a plane which extends between them and is normal to the axis of the core. The external surface of the outer layer is profiled in that it is provided with grooves cut into or otherwise formed in the strips and forming helices as a result of convolution of the respective strips onto the core. Each helical groove is adjacent a deformable lip which defines a portion of the external surface of the outer layer and can yield in response to engagement with a running web. The strips are permanently or detachably bonded to the peripheral surface of the core.

Abstract: A roller, and more particularly a precision transport roller formed of elastomeric material is disclosed. The roller is characterized in that the elastomeric material is formed into inner and outer concentric cylinders which are joined together and which encompass therebetween in co-axial relation a rigid cylindrical bushing. Preferably, the inner and outer cylinders are connected by bridges defined by holes formed in the bushing. The bushing may include beveled end faces for facilitating centering of the bushing in a mold.

Abstract: An apparatus for coiling webs of material, more particularly webs of material (5) arriving from a ribbon casting machine, and for coiling the webs of material (5) if necessary. For the purposes of guiding and coiling, brush rollers (20, 21, 23-26) are used consisting of axially spaced-out annular disc-shaped brush elements between which guide elements (27) extending in the direction in which the ribbon runs are disposed, which prevent the web of material (5) of low rigidity from becoming wound around a brush roller (20, 21, 23-26).

Abstract: An apparatus for uniformly applying a compressive force against a filament to pneumatically drive the filament or fiber optic cable against a capstan without any concentrated amount of stress at any point on the filament is effectuated by pneumatically forcing the filament into an equatorial V-groove defined in the capstan. Pneumatic pressure is applied to a predefined segment of the capstan by a pneumatic shoe having an internal shoe pressure chamber. The pressurized gas or air is applied to the segment from the chamber within the shoe into the proximity of the equatorial V-groove on the equator of a disc shaped capstan. The V-groove is vented to atmosphere so that the cable is forced or blown into the V-groove. Side and end clearances between the rotating capstan and the shoe are sized to allow the viscosity of the pressurized gas to operate to retard the escape of the pressurized gas from the predefined segment of the capstan.

Abstract: A tape guide which includes a roller having a fixed lower flange and a tape contacting portion having a width less than the width of the tape. A compliant member formed from a flat spring is mounted on the top of the roller opposite the flange. The compliant member includes an outwardly and upwardly tapered peripheral portion extending beyond the diameter of the tape contacting portion of the roller. Since the tape width is greater than the width of the tape contacting portion of the roller, the tape is forced against the tapered portion of the compliant member. The compliant member thus biases the tape downward against the lower flange by applying a uniform distributed load against the upper edge of the tape. The tape is prevented from being vertically displaced regardless of variations in the width of the tape. Variations in the wrap angle will not affect the loading on the tape.

Abstract: The invention is an improved spindle for guiding photographic film, paper and similar flexible materials subject to handling and transport in long rolls. The spindle is constructed of lightweight material, and features two pairs of curved shoulders, each of specific radius. The first shoulder supports the transported materials at opposing edges, and spaces the material away from the central portion of the spindle. The second shoulder protects the edge of the material, centers the material on the spindle, and guides the material to a centered position on the spindle in the event the material becomes inadvertently mis-centered.

Abstract: A wrap material spreader roll includes a smooth, cylindrical tube having spiral flights at opposite end portions thereof formed from spirally wound wires of circular cross-section, the wires having respective inner ends defined by a radially inwardly projecting portion which is received in a respective hole provided in the tube. The spreader roll is mounted to opposite support walls by respective bolts having hexagonal heads received in hexagonal bores provided in the inner races of a pair of roller bearings that are pressed into the opposite ends of the tube, the bolts having respective threaded stems received in keyhole-shaped holes provided in the walls and having nuts received thereon.

Abstract: An apparatus for feeding a slide fastener chain with fabric strips attached thereto and including flaps extending over a pair of interengaged rows of coupling elements includes a narrow elongate lower guide member having a central guide groove extending longitudinally in an upper guide surface thereof for receiving and guiding the interengaged rows of coupling elements, and a presser roller disposed adjacent to an upstream end of said lower guide member for resiliently urging the slide fastener chain against the upper guide surface to cause the flaps to engage said upstream end of said lower guide member and then turn down away from the coupling elements on one side of said lower guide member as the slide fastener chain is fed by a feed unit longitudinally along a feed path toward a subsequent processing station.

Abstract: To supply an arriving and delivered portion of a traveling web (1, 21, 31, 41, 81, 91, 101) to have the same side-orientation as the delivered portion, the web is passed about a first turning bar (2), then looped about a first deflection roller (3), and spanning the arriving portion of the web, about a second deflection roller (4) to be then turned again, selectively, by a second turning bar (5). Other web paths are possible, omitting the second deflection roller (4). Rather than using a single second deflection roller, smaller roller elements (FIG. 11: 16, 17) can be used, the second deflection roller, or the elements having effective diameters which are larger than the diameter of the first deflection roller.

Abstract: A hollow cylinder exhibits an internal body, which forms a sickle-shaped space by means of a partial cylindrical surface arranged eccentrically to the hollow cylinder, with a smaller radius than its internal radius. In this space there is created a vacuum on rotation of the hollow cylinder. By This means air is sucked out of the area through the boreholes of the hollow cylinder, where a web of material wraps the hollow cylinder. This leads to a firmer adherence of the web on material to the hollow cylinder.

Abstract: This invention relates to a conveyor pulley and more particularly to a roller for the pulley which is made from a suitably bonded particulate material such as silica sand.

Abstract: A hollow cylinder exhibits an internal body, which forms a sickle-shaped space by means of a partial cylindrical surface arranged eccentrically to the hollow cylinder, with a smaller radius than its internal radius. In this space there is created a vacuum on rotation of the hollow cylinder. By this means air is sucked out of the area through the boreholes of the hollow cylinder, where a web of material wraps the hollow cylinder. This leads to a firmer adherence of the web on material to the hollow cylinder.