Abstract: A dispenser for dispensing at least one perforated web from a storage of web material, the dispenser including: a housing arranged to hold a storage of perforated web material, wherein a web path extends along a feeding direction in an interior of the housing from a storage position to a dispensing opening of the dispenser, and a separation arrangement being arranged along said web path, for separating the at least one perforated web along the perforations thereof, said separation arrangement including a first unit and a second unit, the second unit being arranged downstream said first unit, as seen in the feeding direction of the web path. The first unit is arranged to provide a tensioning force on said web, and the second unit being arranged to stretch the web material along the length of the web and along the width of the web.

Abstract: A portable rope drive and guiding apparatus operable by a single user is disclosed. The apparatus includes a receptacle defined by a first side wall, a second side wall, a first end wall and a second end wall, with a vertical opening between a top edge and a bottom edge for receiving the rope. The apparatus further includes a powered drive wheel mounted between the first side wall and the second side wall, and having a friction-bearing outer perimeter to drive the rope through the receptacle. The apparatus further include a guide wheel mounted between the first side wall and the second side wall, opposite the drive wheel, the guide wheel having a concave outer perimeter that corresponds to and guides the rope through the receptacle as the rope is driven by the drive wheel.

Abstract: The present invention relates generally to medical equipment, more particularly, the use of fluid hoses coupling tanks to cannulas, as part of medical gas therapy, such as oxygen therapy. The invention describes a collection system for managing excess flexible hose that a patient might need to wear for medical reasons such as home oxygen medical therapy. It comprises a collection container, a non-spooling roller system for collecting excess hose into the collection container and extraction from the collection container, and power system to power and control the roller system.

Abstract: A linear driving device with load dependent clamping capability with a reference driving element and a moveable driving element. The linear driving device being arranged for driving an elongated element located between the reference driving element and the moveable driving element at least one of which is powered to apply an axial force (Fa) and a clamping force (Fc) to the elongated element to drive it. The device includes at least one pivoting lever attached to the reference driving element by a first rotation axis and to the moveable driving element by a second rotation axis. When the elongated element is driven, the at least one pivoting lever is arranged so that the magnitude of the clamping force (Fc) depends on a predetermined angle (a) defined between a perpendicular direction to the axial force (Fa) and a reaction force passing through the first and second rotations axes.

Abstract: A system for recovering hose, including a hose receptacle having an open top portion for receiving a hose and attached hose couplings. The system further including a first device having a hose recovery means comprising an upper roller and a lower roller, at least one of the upper or lower rollers being powered, and a lifting arm operably coupled to the upper roller for moving the upper roller between a first position and a second position, the upper roller being closer to the lower roller when in the first position than when in the second position.

Abstract: A pressure lock system passes a wire along a wire path from a wire source at a high pressure first region to a destination at a low pressure second region. The pressure lock system includes a pressure lock chamber. A first conduit has an interior positioned to pass the wire along the path and is mounted for rotation. A second conduit has an interior positioned to pass the wire from the pressure lock chamber and is also mounted for rotation. A motor may drive rotation of the first conduit and the second conduit. Pumps may maintain a pressure of the pressure lock chamber lower than a pressure of the first region.

Abstract: The preferred system utilizes two devices to recover larger diameter hoses and couplings. Each of the devices has a plurality of lifting frame arms having a motor disposed between the lifting frame arms. The motor is operatively connected to the rotational drive roller also connected between the lifting frame arms. A hinge or other attaching arrangement that connects the lifting frame arms to mounts allows for lowering the lifting frame arms into a first position and lifting the lifting frame arms into a second position higher the lower rollers. A hydraulic lift cylinder can be utilized to raise and lower the lifting frame arms when a hose coupling on the hose is encountered during the hose recovery process. The devices can be lined up in series and spaced a few feet apart. The devices can be mounted to a tractor, trailer, truck or other similar equipment. A cage can surround the devices on top of the tractor, trailer, truck or other similar equipment.

Abstract: A cable bolt lifting and feeding device that is a lightweight unit that mounts into a drill rig rotation unit. The device uses the mechanical power provided in the rotation unit to drive a set of wheels that engage with the cable bolt, causing the cable bolt to be pushed through the device and into a pre-drilled hole.

Abstract: A medium feeder includes a first rotation body; a second rotation body which engages with the first rotation body while overlapping with the first rotation body, and disengages from the first rotation body in response to the presence of the feed target medium nipped between the first and second rotation bodies; a rotation body support member which supports the second rotation body, and is configured to be movable between an advancing position where the second rotation body engages with the first rotation body and a retreating position where the second rotation body disengages from the first rotation body; and a detection unit which detects migration of the rotation body support member to the retreating position.

Abstract: A drive roll is disclosed that is useable in a wire feeder for advancing a wire. The drive roll includes a first side, a second side offset from the first side, and an annular surface between the first side and the second side. An annular groove is formed in the annular surface and defines an engagement surface. Pluralities of lands are spaced along the engagement surface and pluralities of notches are formed in the engagement surface for engaging and advancing the wire. An engagement ratio is defined between the total land area of the plurality of lands and the total notch area of the plurality of notches calculated at the engagement surface. The engagement ratio defines a drive roll that accurately engages and advances the wire over a longer period of use.

Abstract: A wire feed station of a wire processing system draws a supply of wire into the system. The wire feed station includes first and second feed wheels that create a nip to pull the wire through the feed station. A drive assembly is coupled to the first and second feed wheels to cause rotation of the feed wheels. The drive assembly includes first and second drive shafts that are coupled to the first and second feed wheels through a pair of flexible couplings. The flexible couplings allow the first and second feed wheels to move relative to each other to adjust the feed nip. The flexible couplings allow a single drive motor to rotate the first and second feed wheels through a pair of drive shafts without the use of a complex belt or gear assembly.

Abstract: The automatic coiling machine is a device for automatically coiling an elongated flexible element, such as a fishing line. The automatic coiling machine includes a housing adapted for mounting to a support surface, such as a wall of a boat. The housing includes at least one sidewall. A drive roller is rotatably mounted to the sidewall by a drive shaft. A drive system, such as a motor, is mounted to the sidewall for selectively and controllably driving rotation of the drive shaft and, thus, the drive roller. An idler roller is rotatably mounted to the sidewall adjacent the drive roller and contacting the drive roller so that rotation of the drive roller drives rotation of the idler roller. The sidewall is angled so that an axis of rotation of the drive roller is angled with respect to the axis of rotation of the idler roller.

Abstract: A conveyor unit for conveying a web of material, in particular for conveying a web of corrugated board in a corrugating machine, comprises a machine frame; a delivery roller, which is lodged in the machine frame rotatably about a first axis of rotation; a drive for actuation of the delivery roller; a draw roller, which is lodged in the machine frame rotatably about a second axis of rotation, the first axis of rotation and the second axis of rotation being substantially parallel to each other, a nip for the web of material to pass through being formed between the delivery roller and the draw roller, the draw roller having a draw-roller-surface coefficient of friction which is selected so as to ensure power transmission from the draw roller to the web of material that rests thereon, and the delivery roller having a delivery-roller-surface coefficient of friction which is less than or equal to the draw-roller-surface coefficient of friction; and a torque transmission arrangement, which acts between the delivery

Abstract: A reel-less line retriever suitable for rescue work provides open housing and guides such as may receive a flexible line along its length without threading through the guides and housing to be positioned between a pair of engaging wheels. The wheels are compressed about the line by a trigger mechanism and activated by a crank so as to discharge the line loosely into a following bucket or other suitable container. A handle may be held by an operator allowing the device to be supported in one hand with control of the trigger with one finger of that hand while the other hand is used to activate the crank. The line may be fully removed from the device and the device from the container for storage or ready access to the line.

Abstract: A pinch roller which includes a cylindrical elastic body formed of a polymer blend including acrylonitrile butadiene copolymer rubber (NBR), and at least one of a highly saturated copolymer rubber containing nitrile group obtained by hydrogenating a butadiene part of said acrylonitrile-butadiene copolymer rubber, and ethylene-&agr;-olefin type copolymer rubber, and a resin sleeve press-fitted in the elastic body. The elongation of the elastic body is set to be at least 5% and not more than 15%. A pinch roller apparatus includes this pinch roller.

Abstract: There are described drive roller assemblies for pulling print media within, or in conjunction with, a printing apparatus. In one embodiment the assembly includes a rigid drive roller having a hard outer surface in conjunction with a pressure roller having a deformable surface. In another embodiment the assembly has a rigid drive roller in conjunction with a plurality of pressure rollers which are adapted for pressing print media against the drive roller over substantially different portions of the drive roller length.

Abstract: A roller including an inner tubing and an outer tubing which is fixed relative to the inner tubing by welding the outer tubing to the inner tubing. The roller with weldments is particularly suitably for a nipped application.

Abstract: The roller assembly includes: a first shaft having a longitudinal axis; a self adjusting pressure drive shaft extending parallel to the longitudinal axis, the self adjusting pressure drive shaft includes: a main body portion having a cylindrical shape; a ring surrounds the main body portion; and a flexible material is disposed between the main body portion and the ring. An apparatus for a continuously winding a transformer core in an electrical transformer includes: a feed assembly for a material, the feed assembly includes a first shaft disposed adjacent a self adjusting pressure drive shaft, the self adjusting pressure drive shaft includes: a main body portion having a cylindrical shape; a ring surrounds the main body portion; and a flexible material is disposed between the main body portion and the ring.

Abstract: A power exhaust device for packing sheet used in sharing and packing device of medicine, which is mounted at the discharge position of the packing sheet containing medicine and designed to feed the packing sheet forcedly, comprises a primary motor and a secondary motor mounted abreast on a mounting plate for generating rotational force with power applied, a primary rotating body made of sponge and fixed to the shaft of the primary motor, and a secondary rotating body made of sponge and fixed to the shaft of the secondary motor, with the circumferential surfaces of both primary and secondary rotating bodies coming into contact with each other.

Abstract: A pinch roller device is provided wherein an elastic cylindrical roller is fitted over a cylindrical holder 1, in the inner wall of which are formed a small hole 1a and a large hole b 1b; wherein a bearing 3 is fitted in the large hole 1b and a bearing stopper sleeve 4 is pressed into the large hole 1b, so that the bearing 3 can be rotatably fitted over a roller shaft.

Abstract: In the case of a magnetic-tape apparatus (1) and/or in the case of a pressure-roller unit (65), a pressure-roller spindle (55) and a bearing part (60), which surrounds the pressure-roller spindle (55) and can be rotated relative to the pressure-roller spindle (55), for rotatably bearing a pressure roller (29) are provided. The bearing part (60) having a first bearing surface (63) which is formed by a toroidal surface and cooperates with a second bearing surface (64) likewise formed by a toroidal surface. The two bearing surfaces (63, 64) formed in each case by a toroidal surface permitting a wobbling movement of the pressure roller (29), and the two bearing surfaces (63, 64) being held lying against one another without play, and of these two bearing surfaces (63, 64) at least one bearing surface (63) being provided in a compliant fashion in radial directions relative to the other bearing surface (64).

Abstract: A wire feeding mechanism suitable for advancing ferrous and nonferrous wire along a pathway without causing damage to the wire, including a plurality of drive rollers stationed in opposing pairs along the pathway, each comprising a cylindrical hub and a flexible cover extending thereabout. The flexible covers conform to the cross-sectional contour of the wire therebetween under the compressive forces generated by the opposing drive rollers as the wire is driven along the pathway.

Abstract: A power exhaust device for packing sheet used in sharing and packing device of medicine, which is mounted at the discharge position of the packing sheet containing medicine and designed to feed the packing sheet forcedly, comprises a primary motor and a secondary motor mounted abreast on a mounting plate for generating rotational force with power applied, a primary rotating body made of sponge and fixed to the shaft of the primary motor, and a secondary rotating body made of sponge and fixed to the shaft of the secondary motor, with the circumferential surfaces of both primary and secondary rotating bodies coming into contact with each other.

Abstract: A pinch roller device for running the tape includes a rotatable hollow cylindrical elastic member; a sleeve for holding the elastic member; a bearing integrated with the sleeve; a pinch roller shaft for rotatably supporting the bearing, which has an effective bearing face for receiving a force from the pinch roller shaft; an inclination restriction member for restricting an inclination angle of the pinch roller shaft; first and second position restriction members for respectively restricting a position of the elastic member in first and second thrusting directions; and a sliding restriction member having a circular cross-section along a plane perpendicular to a rotation center line of the elastic member and disposed at a different portion from the effective bearing face. When an angle between the rotation center lines of the elastic member and the pinch roller shaft approaches a prescribed value, the sliding restriction member contacts the inclination restriction member.

Abstract: A linear cable engine (LCE) uniquely grips a cable so as to avoid damage to the protective/insulative sheath thereon during retrieval and deployment. The LCE includes a design which encompasses the cable and actually applies pressure radially to the cable. This allows for the application of much higher force as the cable is in a state of hydrostatic stress resulting in a higher allowable tension on the cable. Deformable polymeric gripping elements are mounted to the outer surface of the driving mechanism. Each of the gripping elements, which may be an elastomeric block or annular tire-shaped member, has a profiled surface effective to embrace the cable and is identical in shape and construction, one or another. The elements have an indention capable of matching one or more given cable radii and a hollow or gel filled cross-section which may contain strategically placed stiffeners.

Abstract: A pinch roller device is provided wherein an elastic cylindrical roller is fitted over a cylindrical holder 1, in the inner wall of which are formed a small hole 1a and a large hole b 1b; wherein a bearing 3 is fitted in the large hole 1b and a bearing stopper sleeve 4 is pressed into the large hole 1b, so that the bearing 3 can be rotatably fitted over a roller shaft.

Abstract: A pinch roller is rotatably provided around a roller shaft by way of a bearing member and abutted against a capstan roller by way of a magnetic tape to rotatively drive the capstan roller, thereby causing the magnetic tape to run. The bearing member has a groove portion formed on a longitudinal center portion of an outer periphery thereof so as to form flange portions abutting against an inner periphery of the roller member in both longitudinal sides of the groove portion. The diameter of portions of the inner periphery of the bearing member where oppose to the flange portions are enlarged than the diameter of a portion where opposes to the groove portion.

Abstract: A device for automatically catching a torn material web running through a rotary printing machine includes a pair of clamping rollers, respectively, disposed beneath and above the material web, the rollers being rotatingly entrainable and being able to clamp the web when a web tear is detected, at least one of the clamping rollers having variable outer main dimensions, and an actuator connected to the at least one clamping roller for causing the outer main dimensions thereof to increase upon detection of a web tear, so as to clamp the torn material web between the clamping rollers.

Abstract: A method of feeding a photosensitive material processing device, includes providing a pair of feed rollers, each in a form of a coaxially-shaped two-layer structure formed by two-layers extrusion molding using thermoplastic resin, wherein the two-layer structure of each of the feed rollers has an internal layer portion and an external layer portion wherein the modulus of elasticity of either the thermoplastic resin constituting the external layer portion or the thermoplastic resin constituting the internal layer portion of the two-layer structure is 240 kgf/mm2 or more, the modulus of elasticity of the thermoplastic resin constituting the other layer portion is 900 kgf/mm2 or more, and the external diameter of one of the feed rollers is 13.7 mm or more.

Abstract: Improved method and apparatus for cutting or severing thin webs, especially adhesive transfer tapes, and other relatively thin materials which prevents or minimizes tearing.

Abstract: An apparatus (10) for conveying abrasive web (16) of indeterminate length, such as photographic media, has first and second closely spaced rollers (12, 14) with at least one of the rollers (12, 14) having a polymeric/inorganic composite media bearing surface (70). The abrasive web or media (16) is disposed between a nip (18) defined by the close spacing between the rollers (12, 14) and is in moving contact with the polymeric/inorganic composite media bearing surface (70) while being conveyed through the nip (18).

Abstract: A well pump puller having a well casing collar including a coupling adapted to be tightly secured to a well casing and a frame support of legs upstanding from the coupling. A frame which is removably mounted on the support includes first and second u-shaped members pivotally mounted on one of the frame support legs. Wheels with well pipe engaging surfaces are rotatably mounted on each u-shaped member. Locking apparatus are provided for securing the u-shaped members together with the pipe engaging surfaces of the wheels on the u-shaped members above the coupling of the well case collar. A motor transmits power to the wheels on the first u-shaped member, to move well pipe relative to the casing. A crank on the second u-shaped member moves the wheel towards and away from the wheels on the first unshaped member. The frame may be mounted on a stand instead of a well casing collar.

Abstract: An apparatus for intermittently feeding a workpiece to a press, the device including a feed roll with a pinch roll opposite the feed roll, so that a workpiece may pass between the rolls. A servo screw, pinch roll actuator is connected to the pinch roll so that during apparatus operation, changes in pinch roll pressure may be developed between the pinch roll and the workpiece without causing loss of contact between the pinch roll and the workpiece. A new belt drive system and method of pinch roll control is also disclosed.

Abstract: Lateral elastic deformation of Drive wheels (12) is used to grip and to push or pull elongated members by powered rotation of Drive wheels (12). This arrangement allows two wheels on a single shaft to be used in place of more cumbersome arrangements of multiple shafts and their support and drive systems as is used when the elongated members are contacted by the peripheries of the tires. The device Is also modular allowing the prime mover and initial gear reductions (Portable Power Drive (13)), the Drive wheel Assembly (20), and the attachment to the primary support to be installed as units.

Abstract: A capture device in a printing machine for capturing a printing stock web in the event of a tear in the printing stock web includes two capture cylinders, one of which is movably mounted on a pneumatic piston or other resilient device. The capture device also includes a device for preventing an ink buildup on the capture cylinders. The device for preventing an ink buildup may include washing devices for removing the printing ink deposited on rubber blankets mounted on the outer surface of the capture cylinders. The device to prevent the ink buildup may also include outer surfaces of the cylinders 5, 6 made of an ink-repellent material, such as, for example, chrome. However, the washing devices 12, 13 can also be used in addition to the ink-repellant material.

Abstract: A pushing device which includes a frame supporting at least one powered train of wheels the drive surface of which is made from rubber for driving a plastics tubing through friction and for imparting thereto a continuous motion inside of a metal piping to be renovated, the invention being applicable to the renovation of systems of fluid-conveying buried metal pipings.

Abstract: A pinch roller assembly used in a video cassette recorder, employs a plastic journal bearing or a metallic sliding bearing in order to pivotally carry a sleeve about a supporting shaft, the bearings retained around a lower portion of a small diameter section and on an upper end of a large diameter section of the supporting shaft and a cushion member secured around an external surface of the bearings so as to enable an external rubber contact to tilt with respect to the supporting shaft.

Abstract: A pinch roller type tape drive assembly which is one of the elements composing a tape driving system of a VCR and ensures stable running of a tape. The pinch roller type tape drive assembly has a capstan for rotating at a constant velocity and a pinch roller which self-aligns, for pressing a tape against the capstan so as to drive the tape at the constant velocity together with the capstan. When the pinch roller is pressed against the capstan, an annular self-aligning member disposed between an inner sleeve and an outer sleeve is compressed in the direction of the contact point of the capstan and the pinch roller toward a pinch roller shaft, thereby holding the gap between the capstan and the pinch roller.

Abstract: A tiltable roller assembly includes a roller, a sleeve tightly fitted into the roller, a supporting shaft extending through the sleeve, the supporting shaft having a small diameter section and a large diameter section, a rotating member for pivotally carrying the roller and the sleeve about the supporting shaft and a cushion member for allowing the roller and the sleeve to tilt with respect to the supporting shaft. The rotating member has at its periphery an external groove for accommodating the cushion member and a bore through its center and a protruding portion, inwardly extending from an upper end of the bore, for serving to limit the amount of the descent of the rotating member.

Abstract: Apparatus for feeding one or more fiber threads, e.g., of glass, at an adjustable feeding rate. At least two synchronously driven feed rollers forming at least one nip for the fiber thread and consisting of a first motor driven roller and a second co-rotating roller. The motor driven roller and/or the co-rotating roller are/is provided with one or more, each in its respective peripheral slot in the cylindrical mantle surface of the roller housed O-ring of an elastic incompressible material, e.g., rubber. The O-ring bears on the peripheral surface of the adjacent roller to transmit the rotary motion by means of friction.

Abstract: A forming apparatus for forming a selected profile in a sheet of material includes a frame, a sheet drive to advance the sheet of material through the frame, a drive assembly for powering the sheet drive, forming rollers to configure the sheet into the desired profile and a shear assembly to cut the formed sheet into desired lengths. The sheet drive includes pairs of coacting rollers with each pair comprising a driven roller connected to the drive assembly and a free-wheeling roller that is adjustably mounted relative to its associated driven roller. The shear assembly has a housing that movably mounts a pair of opposed blade mounts that have facing channels which receive lateral edges of a blade. These channels are wider than the blade thickness so that the blade freely floats and is thus self-aligning between dies.

Abstract: A pinch roller type tape drive for driving a magnetic tape on a VTR or the like comprises a capstan for driving the magnetic tape, and a pinch roller for pressing the magnetic tape against the circumference of the capstan so that the magnetic tape may not slip relative to the circumference of the capstan. The outermost layer of the pinch roller is formed of an elastic material having a hardness higher than that of rubber, which is used for forming the outermost layer of a conventional pinch roller. The pinch roller is capable of pressing the magnetic tape against the circumference of the capstan at a sufficient pressure without contacting the circumference of the capstan.

Abstract: A method of adjusting a wire feeder having a pusher system (12) and a puller system (14) to avoid birdnesting and collapse of the wire (11) in the wire guide or conduit (13) when the tip (15) of the wire feeder is blocked or a wire jam occurs. The pusher system (12) is adjusted by activating both the pusher system (12) and the puller system (14), adjusting the pusher system (12) to provide a desired wire feed speed when the tip (15) is not blocked, blocking the tip (15), and adjusting the pressure exerted by the rollers (22) of the pusher system (12) so that these rollers (22) slip on the wire (11) when the tip (15) is blocked. The puller system (14) is adjusted by disabling the pusher system (12), blocking the tip (15), activating the puller system (14), and adjusting the pressure exerted by the rollers (32) of the puller system (14) so that these rollers (32) do not slip on the wire (11).

Abstract: A side-by-side material feed system is provided for feeding two dissimilar strips of material. The material is fed along parallel feed paths by first and second material feeders which move the material toward respective cutters. The operation of the feeders and the cutters is controlled by a programmable controller which permits each of the material strips to be fed and cut to form pieces of predetermined length which may be removed by an operator or conveyed to a subsequent station for further processing. In a further embodiment of the invention, the feeders are supported on an ergonomic arm mounted to a portable cart whereby the feeders may be used at different sewing stations and the ergonomic arm may be positioned at an optimum location for each of the sewing stations.

Abstract: Wire is fed along a predetermined path by virtue of being pinched between an upper set of feed rolls and a lower set of feed rolls while the upper and lower rolls are rotated in opposite directions. The upper feed rolls are journaled cantilever fashion by an upper carrier which is fixed to the main frame of the apparatus. The lower feed rolls are similarly journaled by a lower carrier which is adapted to be moved upwardly toward the upper carrier to cause the lower feed rolls to pinch the wire against upper feed rolls after the wire has been threaded between the rolls. The lower carrier is moved upwardly by actuators which are offset laterally from the cantilevered rolls.

Abstract: An apparatus for processing chopped fibers from essentially continuous tows, each consisting of individual strands, comprises selectively feeding at least two tows to a venturi pump and associated cutter mechanism where the tows are cut or chopped into relatively short lengths to form chopped fibers. The apparatus includes sensors for monitoring the movement of each of the tows to the pump and cutter mechanism, and a controller which adjusts the feed rate of the tows and the rate of operation of the cutter mechanism in the event movement of one of the tows varies from a predetermined feed rate.

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: The apparatus for infeeding a cable in a predetermined infeed direction to an automatic cable processing machine enables moving standard cables and cables of reduced wall thickness at high velocities between the drive surfaces of two revolvingly contacting or confronting drive belts of two belt drives. By separating a drive roller synchronously driven with respect to the two belt drives from the measurement drive roller of a cable length measurement device it is possible to vary the diameter and thus the peripheral velocity of such drive roller. Consequently, there can be continuously applied to the cable a tension between the belt drives and the drive roller in accordance with the direction of movement of the cable. This cable tension prevents dam-up of the cable at this region of the cable infeeding apparatus, precludes any possible lateral departure of the cable from the belt drives and affords an exact length measurement of cable sections of the cable.

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 method and apparatus for precisely advancing film material between two rollers includes a driven roller having a medium hardness rubber surface and a non-driven hard surfaced roller which contacts precision surfaces at either end of the driven roller to accurately control the spacing between the two rollers. The non-driven roller is urged against the driven roller precision surfaces by a spring force, and causes the rubber of the driven roller to compress when film material is in an operative position between the roller pair.