Abstract: A roll type stock feed apparatus having a lower feed roll rotatably supported on a frame and cross-shaft rotatably mounted on the frame parallel to the lower feed roll, and a motor for driving the lower feed roll and the cross-shaft in timed relation. First and second upper roll carriers are mounted for independent vertical pivotal movement on the cross-shaft, and first and second upper feed rolls are rotatably mounted on the upper roll carriers for movement therewith and are drivingly connected to the cross-shaft for rotation by the cross-shaft in timed relation with the lower feed roll. The first and second feed rolls are independently driven from the cross-shaft by first and second upper roll gears respectively non-rotatably connected to the first and second upper feed rolls and first and second upper roll drive gears non-rotatably mounted on the cross-shaft and respectively meshing with the first and second upper roll gears.

Abstract: Web feed apparatus, for example in web printing and folding apparatus, has a pair of opposing rollers, one (28) on a fixed axis and one (22) laterally movable to define an adjustable nip gap between their peripheries. The gap is automatically set and adjusted by a setting screw (4) driven by a servo motor (60) with rotation of the screw monitors by a potentiometer sensor (64). A stop collar (52) on the screw limits axial displacement thereof to determine the set nip gap and a spring (50) urges the rollers towards each other but permits displacement under overload conditions. A rectilinear sensor (54) senses said conditions by monitoring relative displacement of the stop collar and a programmable control system processes signals from the sensors and operates the servo motor accordingly.

Abstract: A device for inserting or threading and drawing a leader spring in conduits for electric wiring systems includes a housing closable by a lid and accommodating at least one driven roller for cooperation with a counterpressure roller accommodated in the lid. The driven roller and the counterpressure roller cooperate with each other in such a manner that the leader spring is retained and guided therebetween.

Abstract: A mechanism for drawing superimposed webs in a rotary press comprises: a drag roller provided between a printing press and a folding machine so as to be rotated and driven at a peripheral velocity suitably higher than that of a plate cylinder; a plurality of propeller rollers operative for selective engagement with or disengagement from the edge portions at the respective sides of a plurality of printing webs which are superimposed upon each another and wound around the outer peripheral surface of the drag roller, the propeller rollers being rotatable and provided along the outer peripheral surface of the drag roller at both ends thereof; and pressing apparatus for pressing the propeller rollers onto the edge portions of the printing webs.

Abstract: At least two transporting and take-off rollers (2, 2') interact for the gripping of a cable (1) to be transported. The axes of rotation (3, 3') of the transporting and take-off rollers are each rotatably arranged on a cantilever arm (7, 7') capable of swivelling together about a second turning axis (6) arranged on a turning platform (10) and running perpendicular to the former axis and parallel to a common straight line (5) connecting the said two rollers (2, 2'). At least one of the two transporting and take-off rollers (2, 2') is arranged laterally adjustable in relation to its distance (a) from the second transporting and take-off roller (7). Further, first drive devices (25) connected so that they can swivel together with the turning platform (10), are provided for driving the two transporting and take-off rollers (2, 2').

Abstract: Device to compensate the elongation of two or more wire rods or round bars on machines fed with two metallic wire rods or round bars of iron or alloys thereof of a type for building work, the machines being, for instance, bending/shaping machines, the device comprising a pair of opposed rolls (12), namely an upper roll (12a) and a lower roll (12b) respectively, the rolls (12) defining between them respective inner (17a) and outer (17b) passes (17), with which the wire rods passing through cooperate, at least one (12a) of those rolls (12) being able to move substantially parallel to itself on a plane containing the axes of the rolls (12), the rolls (12a-12b) having respective shafts (15a-15b) each of which is fitted to a relative support (13), namely to respective upper (13a) and lower (13b) supports, the other roll (12b) being able to move in a controlled rocking manner on the plane containing the axes of the rolls (12) and being adjusted by a bottom positioning screw and a return spring (22).

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: Multiple pairs of pinch rolls are used to advance a rod product along a pathway following a continuously casting and rolling system. Each pinch roll pair exerts a force normal to the rod of less than the amount necessary to substantially degrade the yield strength characteristics of the finished rod. Multiple driven pinch roll pairs cooperate to advance the rod by compressive engagement and accomplish the work of one or two pairs of pinch rolls to minimize work hardening and/or plastic deformation, which can result in an increase in yield strength. Yield strength characteristics are thus improved while the continuous rod product is still advanced and guided at very high speed along a pathway from a horizontal to a vertical direction.

Abstract: A laminating system includes a pair of heated laminating rollers (14) for drawing laminating film (12) from supply rolls and preheat members (30) between the supply rolls and the laminating rollers. The preheat rollers are heated internally by a bonded electrical heating element, while the laminating rollers are heated by a separate bonded internal heating element. The system includes pull rollers (18) for drawing the laminated articles from the supply roll (10) across preheat rollers (30) and through laminating roll (14) with a blower system (20, 242) for cooling the articles.

Abstract: Pressure rollers are carried on respective shafts which are slidable in slotted plates towards and away from a machine centreline to define a gap. Measuring means are provided for determining the position of each roller, in the form of a contact probe mounted on each end of each shaft with the probes at either end bearing on opposite faces of a plate of known thickness centred on the machine centreline.

Abstract: A laminating system includes a pair of heated laminating rollers (14, 110) for drawing laminating film (12, 114) from supply rolls and preheat members (30, 118) between the supply rolls and the laminating rollers. The preheat rollers are heated internally by a recirculating fluid system or by an electrical mechanism (212-220), while the laminating rollers are heated by a fluid system (70-82) or a separate electrical system. The system also includes pull rollers (18) for drawing the laminated articles from the laminating rollers and a blower system (20, 232) for cooling the articles.

Abstract: Pipe inspection apparatus comprising transducers for transmitting pulsed beams of ultrasonic energy longitudinally, transversely and obliquely into the wall of the pipe for detection of flaws. The apparatus includes a motor driven chuck 18 for rotating the transducers about the a pipe P and motor driven roller 12 for axial movement of the pipe whereby the transducers move in a helical scanning path. A control system 60 maintains the axes of the pipe and circle array of transducers in coincidence and with hydraulic controls 80 maintains each transducer at fixed distance to the pipe for sonically coupling thereto by a flowing liquid whereby a shear wave is generated by each beam in the tubular wall. The transducers comprise multiple pairs, the members of which are diametrically opposed and transmit in opposite directions, for transmitting longitudinally at angles of 12.degree., 27.degree. and 42.degree.

Abstract: Apparatus, for example for processing sheets of corrugated paperboard in the production of container blanks, has a pair of feed rolls between which the sheets are fed while passing through the apparatus, and a pair of side frames in which the feed rolls are rotatably mounted one above the other. The upper of the feed rolls is journalled in bearings mounted eccentrically in bearing housings rotatable in holes in the side frames. Gearing is provided for adjustably rotating the bearing housings in the holes to move the upper feed roll respectively away from and towards the lower of the feed rolls. A pair of wedges act upon each bearing housing and are disposed in a cavity in each side frame below and communicating with the respective bearing housing. The wedges are moved towards each other by a screw bolt and/or a fluid cylinder to pre-load the bearing housings upwards in their holes.

Abstract: A roller guide system which includes at least a pair of rollers for feeding strips of material between predetermined maximum and minimum thicknesses therebetween is rotatably driven by means of a gear train. The rollers are rotatably mounted on upper and lower housing frames respectively for rotation about first and second parallel axes. The upper frame is slidably mounted on the lower frame for vertical movement relative thereto. Each of the rollers has a spur gear attached thereto for rotation along with its associated roller about said first and second axes, respectively, these gears being interconnected by intercoupling gearing. The center of the gear attached to the roller mounted on the upper frame is at the same level as the center of the gear which drives this gear when feeding strips of an intermediate thickness between said maximum and minimum thicknesses.

Abstract: Apparatus for making a grooved support member for carrying optical fibers having an extrusion die for forming a plastics sheath upon a strength member so as to form the support member. The die aperture has projections extending into it so as to form the grooves in the support member. To form the grooves into sinuous configuration, a twisting device is located upstream from the die. The twisting device comprises a plurality of gripping wheels on each side of the passline of the strength member, the gripping wheels staggered along the passline. The gripping wheels are rotatable alternately in opposite directions around the passline.

Abstract: A roller guide assembly for guiding rolled material between the passes of previous and subsequent roll stands, the assembly being provided with a pair of guide rollers supported for rotation about parallel axes for engaging opposite sides of the rolled material. A sensor detects engagement pressure transmitted to the guide rollers by the material and provides a correlating output signal for adjustment of the guide rollers to maintain constant engagement pressure against the material, thereby permitting compensation for any wear of the guide rollers and previous roll stand pass when the material enters the subsequent roll stand pass.

Abstract: A plurality of sets of three rolls are disposed around the periphery of the round continuously drawn from a mold and movable to the direction for or counter to the rounds, the sets being disposed along the drawing direction of the rounds. It is not necessary to replace the apparatus even when the size of the round is changed due to the replacement of molds, as the roll position are adjustable to the rounds.

Abstract: An improved detachable or replaceable magazine for supplying a strip of printing paper to a photographic printer or photographic processor is disclosed.

Abstract: A tube pulling apparatus is made up of a frame for receiving a tube, a pair of arm assemblies movably supported by the frame, and a pair of tube gripping assemblies rotatably supported by the arm assemblies and carried by the arm assemblies for movement into and out of engagement with the tube. The tube pulling assembly further comprises motive apparatus connected to each of the arm assemblies for moving the arm assemblies to move the tube gripping assemblies into engagement with the tube, and a spring is connected to the arm assemblies for biasing and urging the arm assemblies to move the tube gripping assemblies out of engagement with the tube. A drive assembly is connected to the tube gripping assemblies for rotating the tube gripping assemblies to pull the tube.

Abstract: An apparatus for discriminating a sheet transfer condition has two opposite rollers at least one of which has an axis of rotation which is movable toward and away from that of the other roller. The thickness of a sheet nipped between the two rollers is detected while the rollers are rotated, through a displacement of the movable roller. The thickness is computed utilizing a value provided by integrating, averaging, smoothing or other wise processing on a time series basis the displacement which occurs during a time period for which at least one of the rollers completes an integral number of rotations.The thickness is computed by subtracting a so processed value for a case wherein a sheet is absent between the rollers from a so processed value for a case wherein a sheet is present between the rollers.Where the rollers have a common diameter, the time period which they take to complete an integral number of rotations is employed as the aforesaid time period for an integral number of rotations.

Abstract: An apparatus is provided for guiding a corrugated cardboard sheet in a transfer portion and machining portion of a corrugated cardboard sheet box-making machine. Eccentric bearing boxes are provided for supporting feed rolls which define a path of travel for the corrugated cardboard sheet. The eccentric bearing boxes are rotatable to adjust the position of the rolls vertically depending on the thickness of the sheet then being run through the machine. The apparatus further includes sheet guide means for guiding the corrugated cardboard sheet to the feed rolls. The sheet guide means includes guide plates supported on brackets which in turn are supported on portions of the eccentric bearing boxes. Adjustment of the position of the eccentric bearing boxes for moving the feed rolls simultaneously effects corresponding adjustment of the position of the guide plates so that a constant difference in level between the guide plates and the upper periphery of the feed rolls is maintained.

Abstract: An apparatus for positioning a roll of a roll stand has respective adjustment spindles operatively engageable with the ends of the roll and rotatable about respective axes in one direction to advance the respective roll end and in an opposite direction to retract the respective roll end. A main transmission has respective rotary outputs connected to the spindles, main inputs, and secondary inputs and a relatively strong main drive has respective rotary output shafts connected to the main inputs of the main transmissions for rotating the spindles therethrough. Respective secondary transmissions have outputs connected to the secondary input of the main transmissions and inputs. Individually operable respective relatively weak secondary drives are connected to the inputs of the secondary transmissions for rotating same and rotating the spindles through the secondary and main transmissions.

Abstract: A cable feeding and brake device for use in controllably lowering hanging cable with the aid of gravity through passage means between floors of a high-rise building wherein the device includes a housing supported by legs, the housing carrying a plurality of rollers defining a guideway for the cable between rollers disposed on opposite sides of the cable passing through the guideway, a manually rotatable hand wheel positively turns a pair of the rollers through a chain drive and a manual adjustment urges a roller on the opposite side of the cable between the spaced driven rollers to deflect the cable thereby providing a holding resistance against downward pulling of the cable through the housing guideway. The device is also provided with a manually operated brake which positively clamps and holds the cable in a desired fixed position.

Abstract: A wire drive system of the type utilizing a plurality of rollers having mutually inclined axes and adapted to planetate about a wire whereby said rollers impart a linear motion to the wire, the improvement being to impart a roller-induced vibration to the wire and to support the vibrating wire in such a way as to perpetuate such vibration as the wire is driven through a conduit system to a point of use such as a welding gun.

Abstract: The invention relates to a hydraulically actuated feed roll lift mechanism for feeds utilized to feed strip stock into a machine, such as a mechanical press. Regulated hydraulic pressure acting against a piston that is connected to one of the feed rolls through a yoke forces the feed roll against the stock to grip the stock and cause an increment thereof to be fed into the press when the rolls are rotated. A roll opening cam, which is connected to the press crankshaft, advances a small piston to displace oil against the other side of the piston while the stock is at rest to thereby separate the rolls during the time that the dies are in contact with the stock in the press. The time at which roll separation is initiated is controlled by adjusting the angular position of the cam on its shaft, as by releasing a frictional lock mechanism, rotating the cam to the desired position, and then again locking it in place.

Abstract: A weft thread conveying apparatus having at least one pair of weft thread conveying rollers with each roller having two conical shaped peripheral portions inclined to each other and extending upward from the roller edge towards the middle thereof and means for tilting one of the rollers to selectively engage a weft thread positioned between corresponding peripheral portions of the rollers.

Abstract: There is disclosed an apparatus for feeding an elongate sheet material comprising a drive roller driven to rotate at a constant speed, a pressure roller rotatable in rolling contact with the drive roller, the drive roller being formed of a more resilient material than the pressure roller, the pressure roller when biased against the drive roller deforms the peripheral surface of the drive roller in contact with the elongate sheet material sandwiched between said rollers. Provision is made for changing the force of contact between said drive and pressure rollers, whereby the peripheral surface of the drive roller is varied in size thereby changing the peripheral speed of said drive roller and the speed of travel of the elongate sheet material.

Abstract: A stop means embodied in a rod-guiding apparatus for limiting the gap between a spring-loaded roll and a pulley. The stop means can be adjusted by turning a screw-threaded adjuster to vary the maximum gap.

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: An arrangement for adjusting the compressive force of drive rolls used for advancing a tree along a feed line for lopping. Drive rolls are arranged on opposite sides of the tree trunk and driven by hydraulic motors. Each drive wheel is pivotably mounted on its own arm and a cylinder-piston is connected between the arms and is used to adjust the distance between the drive rolls and to produce a compression force between them. A hydraulic circuit is provided which includes a drive motor, a pressure reducing valve and the cylinder-piston. The tank connection of the control pressure of the pressure-reduction valve is connected to the working pressure of the hydraulic motor so that when the rolls require a low rotating force the compression pressure created by the cylinder-piston is low and when the rolls require a high rotating force the working pressure required by the hydraulic motor increases and this working pressure increases the compression forces exerted by the cylinder-piston.

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: For use in connection with an underground reel in a rolling mill for band-shaped rolling stock, a two-roll driving device, with an upper driving roll and a lower driving roll which are arranged one above the other. When looking in the direction in which the rolling stock enters the reel, the axle of the upper driving roll is during the entry of the start of the rolling stock into the reel located behind the axle of the lower driving roll and after the start of the band-shaped rolling stock has been grasped by the winding mandrel of the reel the upper driving roll is pivotable into a position vertically above the axle of the lower driving roll, while behind the lower driving roll there is provided a deviating device for the band-shaped rolling stock. The upper driving roll is journalled in a stand which is pivotable about the axis of the lower driving roll and adjustable relative to the latter.

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: 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: 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 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.