Abstract: A magnetic recording and reproducing device comprises a capstan rotatable at a constant speed, a rotatable roller, a pair of pinch rollers disposed symmetrically about the bisector or perpendicular erected at the mid-point of the line connecting the centers of the capstan and roller and movable toward the capstan from the opposite direction to be pressed against the same, a head block disposed between the capstan and roller and including a plurality of heads, the capstan and one of the pinch rollers providing first tape transport or drive means while the capstan and the other pinch roller, a second tape transport means being directed toward the roller at which the tape is redirected to be fed to the second tape transport means, the tape being made into contact with the heads of the head block between the first and second film transport means, and the speed of tape imparted thereto by the first tape transport means being slower than the speed of tape imparted thereto by the second tape transport means.

Abstract: This disclosure relates to a pinch roll unit for feeding hot rolled strip to a down coiler employed in a hot strip mill. The upper roll of the pinch roll unit is mounted on a beam which is adjustable by a jack screw against the pressure of a piston cylinder assembly to set the gap between the pinch rolls. The upper roll of the pinch roll unit in addition is further loaded by a double-acting regulatable auxiliary piston cylinder assembly carried by the beam for controlling the gap pressure between the pinch rolls and hence the tension on the strip.

Abstract: A tape transport includes a fixed support for receiving a tape cartridge having a tape drive roller engaged with a bi-directional capstan. The capstan, together with a reversible capstan drive motor and a heat sink surrounding the motor, comprise an integral unit which is mounted to the cartridge support through biasing springs which enable the unit to pivot about its center of gravity relative to the support. The capstan, through its c.g. mount, applies a constant force to the tape drive roller indpendently of external forces acting on the tape drive unit. The electrical drive circuit for the capstan motor includes power transistors which are an integral part of the heat sink for maximizing use of the heat sink as a means for dissipating heat generated by operation of the capstan drive motor and power transistors.

Abstract: A pair of parallel rollers disposed in a path of advance of leno waste exiting from a leno weave portion of a weaving machine are provided with facilities for maintaining their peripheries free of the leno waste as such waste advances through the roller nip. Each of the rollers is made hollow, and is provided with a plurality of peripheral apertures for continually ejecting pressurized air axially introduced into the hollow interior of the cylinder by a fitting in its end wall. Each of the so-apertured cylinders is disposed within a contoured housing which necks down in the leno waste-advancing direction from a relatively wide, convex central portion to relatively narrow inlet and outlet end portions through which the waste enters and exits from the roller nip. As a result, pressurized air emerging from the peripheral apertures of the rollers is directed radially outward through each of the narrow end ports of the housing to entrain the leno waste and to continuously clean the periphery of the cylinders.

Abstract: An apparatus for removing brussels sprouts from the parent stalks including a plurality of blades arranged generally in the form of a truncated pyramid and defining an aperture for receiving the sprout bearing stalks, the blades being rotatable to remove brussels sprouts from the stalks, as the stalks are fed into the assembly through the aperture.

Abstract: The magnetic tape cartridge transport includes a belt capstan which is accessible through the front edge of the cartridge for receiving rotary motion from a drive roller which is coupled to an electric motor. The electric motor extends through a motor opening in the base plate of the transport. A tape drive assembly includes an attachment bracket which is secured to the motor about its center of gravity and which extends laterally therefrom. The attachment bracket includes three apertures through which three shoulder bolts extend. The three shoulder bolts are positioned in a generally triangular spaced relationship about the motor opening of the base plate and are secured to the lower portion of the base plate. A pair of pivot pins are disposed between the lower surface of the base plate and the attachment bracket to permit the attachment bracket to pivot the tape drive assembly in a plane lying perpendicular to the front edge of the cartridge.

Abstract: A magnetic recording and reproducing system comprises a capstan, reel shafts, a motor for rotatably driving said capstan and said reel shafts, a magnetic tape wound up by the rotation of the reel shafts, a pinch roller for pressing the tape against the capstan, and a drive mechanism for driving said pinch roller into engagement with and disengagement from said capstan by a rotation force of said motor.

Abstract: An automatic plank planing machine, and more particularly a planing machine wherein two feeding rollers are vertically movable to compensate for warp in planks to be planed in order to provide an accurate and smooth planing operation.

Abstract: A method and apparatus for permanently controlling movement of a web of material, which is being continuously supplied to a machine which operates sequentially on a portion of the web as each portion is at a standstill, characterized by using an apparatus including a feeder for feeding the web at a continuous rate of speed and a web take-up device for engaging the web as it exits the feeder to absorb the web being supplied by the feeder for a period of time that the portion of the web is being acted on by the machine and is in a stationary position or at a standstill. The web take-up device includes a pair of members mounted in a pair of spaced side frames for rotation on a first axis, a roller engaging a portion of the web and a structure for mounting the roller on the pair of members for rotation on a second axis offset from the first axis.

Abstract: A roll segment for supporting and guiding continuously cast metal strands fed therethrough, said segment comprising opposing rolls for contacting the opposite sides of a continuously cast metal strand cast through a mold and passed from said mold between said rolls. First support means for supporting the roll in contact with one of said opposite sides of said strand, second support means for supporting the roll in contact with the other of said opposite sides of said strand. Linkage means at the opposite ends of said rolls interconnect said first and second support means and maintain said rolls in substantially parallel alignment at the opposite sides of said strand.

Abstract: An improved planetary-type wire-feeding mechanism including a pair of cooperating skewed rollers for advancing the wire is disclosed. The rollers are carried on a pair of radially reciprocable pistons mounted in a feed housing through which the wire is advanced, and a projecting rear portion of the housing has a threaded outer surface for receiving a force-adjusting nut. A conical guide element is slidably mounted on the outer surface of the rear housing portion, and is urged against the adjusting nut by means of a calibrated spring. A pair of symmetrically arranged two-arm levers extend longitudinally through a pair of slits in a flange integral with the housing intermediate its ends, with the rear end of the levers in contact with the conical guide member through a roller, and with the front ends of the levers maintained in abutting relation with the outer ends of the pistons by means of springs. The shaft of a drive motor is fixedly connected to the rear portion of the housing.

Abstract: A tape high-speed travelling device comprises a pinch roller allowing a tape to travel at a speed of more than 5m/sec. by elastically pressing the tape against a capstan, a device for moving the pinch roller toward the capstan, and a stop for limiting the movement of the pinch roller toward the capstan to a prescribed range to prevent occurrence of vibrations such as forced vibrations due to the rotation of the pinch roller.

Abstract: In an apparatus for hauling a cable or other elongate body, the cable or other body is gripped between a plurality of pairs of traction wheels, each pair being mounted tandem fashion relative to the other pair of pairs. The wheels of each pair are resiliently biased into contact with the cable and at least one of each pair of wheels is driven by its own motor. A mechanical coupling is provided constraining one wheel of one pair to rotate conjointly with one wheel of another pair.In one embodiment the apparatus includes two pairs of traction wheels, each wheel being driven by a respective motor. The wheels on each side of the cable are mounted on a respective bogie. The bogies are carried on supports to move the wheels towards and away from the cable path and the wheels are resiliently biased into contact with the cable by an hydraulic jack connected from one support to the other.

Abstract: A video tape recorder includes a capstan, a stationary magnetic head, a pair of rubber pinch rollers disposed on opposite sides of the capstan, and a pair of head-facing guides whereby to travel an endless tape at a high speed. Each pinch roller and head facing guide are mounted on a supporting member which may be rocked by a wire with a coil spring against the force of a tension spring so that the pinch roller and head facing guide can press the tape against the capstan and magnetic head. Such a state may be maintained by abutting the support member on a stop.

Abstract: A web guiding and centering apparatus for guiding and centering a moving web of substantially constant width relative to a fixed center line includes two guiding devices positioned equally distant from the selected center line, each guiding device comprising a pair of co-acting guide rolls inclined in the direction of travel of the moving web for engaging an edge portion of the web on opposite faces thereof. One guide roll of each pair is pivotally and resiliently biased toward the other roll of the same pair about a pivot which is outboard of the web. At least one roll of each pair has a composite surface which includes an outboard surface portion of relatively hard, low coefficient of friction material and an inboard surface portion of a relatively soft, high coefficient of friction material.

Abstract: Improvements are made in a weft yarn drawing and measuring device for a weaving loom in which a weft yarn to be picked into a shed of the loom is drawn off to a predetermined length by means of measuring and pressing rollers driven for rotation about horizontal axis. The pressing roller is constantly driven at a circumferential speed equal to the circumferential speed of rotation of the measuring roller and is movable between a position disengaged from the measuring roller for allowing the leading end of the weft yarn to rest on the measuring roller and a position in rolling contact with the measuring roller for drawing off the yarn gripped between the two rollers. The device is characterized by self-adjustable torque transmission means capable of transmitting a driving torque to the pressing roller and having an allowance for the movement of the pressing roller between the two relative positions thereof to the measuring roller.

Abstract: The present arrangement for guiding bar stock being fed to a screw machine has yieldably-mounted rollers which project into a rotatable guide tube to guide the rotatable bar stock between them. The yieldable, resilient mounting of these rollers substantially eliminates noise and absorbs the transverse forces acting on the bar stock. Preferably, several sets of such rollers are provided at different locations along the length of the guide tube.

Abstract: A web forwarding device wherein a web is friction driven by a drive means associated with a web pressure backing roll and a pair of pressure arms. The amount of wrap and tension around the backing roll is controlled by a pair of free floating pivotally mounted and interconnected pressure arms which hold the web on the roll. The pressure arms are adjustably mounted to control the distance between the axis of rotation of the roll and the pivot point.

Abstract: Apparatus for selectively driving a magnetic tape, or the like, in reverse directions. The apparatus features a pair of shafts driven simultaneously in a common direction by a shared motor, and a pinch roller for each shaft for pinching thereagainst a stretch of tape extending between the roller and shaft. Shifting mechanism mounts the rollers in such a manner that shifting of one roller to pinch tape against its associated shaft is accompanied by simultaneous shifting of the other roller away from its associated shaft, and vice versa. The shift mechanism also permits the rollers both to be simultaneously shifted away from their respective associated shafts, whereby one or both of these shafts may be used for other operations.

Abstract: High speed yarn transporting apparatus which requires at least one and preferably two transporting rolls with cylindrical yarn contacting surfaces containing shallow grooves or flutes which preferably extend axially of each roll. When constructed as a pair of nip rolls, the apparatus advantageously includes a jet operated guide member on the discharge side of the nip with means to inject air into a thread guide channel extending in the yarn transporting direction. A number of preferred embodiments of the rolls and a jet operated guide member are disclosed for smooth and positive transport of a yarn at speeds of 3,000 meters per minute or more.

Abstract: A magnetic card transport system for an electronic typewriter comprises a reversible drive roller and a coacting pinch roller which form a nip through which a magnetic card is passed. The drive roll and pinch coact to move the card in opposite directions. A guide surface is provided which is engaged by one longitudinal edge of the card, and guide springs are provided which engage the other longitudinal edge of the card to urge the card into engagement with the guide surface for registration purposes. The pinch roll is mounted in such a manner that it may freely oscillate. The oscillation is such that the pinch roll axis pivots in each direction from a line substantially perpendicular to the guide surface between 1/2.degree. and 3.degree. about a vertical axis normal to its axis of rotation to allow for self-alignment to maintain the card in alignment with the guide surface.

Abstract: A magnetic card transport subsystem for an electronic typewriter comprises a reversible drive roll and a coacting pinch roll which form a nip through which a magnetic card is passed. The drive roll and pinch roll coact to move the card in opposite directions. The pinch roll is so mounted that it can rock and be self-leveling to permit the full width of the pinch roll to engage the card and uniformly distribute pressure thereto. A mechanism for adjusting the pinch roll for alignment purposes is also provided.