Abstract: A feed apparatus for intermittently feeding band-shaped material to a press has two feed rollers for advancing the material. An upper feed roller is bearing-mounted in a rocker for swivel-movement with a pivot bearing on a unidirectionally hydraulic cylinder into a high-lifted position enabling introduction of the material between the rollers. For lowering of the upper roller, the cylinder is rendered pressureless and a press spring pressed onto the material between the rollers. In this position, the pivot bearing can be fixed for automatically adjusting the feed apparatus to the thickness of the material.

Abstract: The elongate rocker is forked at its first end and includes two fork tines. These are designed symmetrically relative to the longitudinal plane of symmetry of the rocker. A control rod with a longitudinal center axis is pivotally mounted at its bottom end to the second end of the rocker. A spiral pressing spring with a longitudinal center axis acts onto the rocker. The upper feeding roller is designed symmetrically to a plane extending perpendicularly relative to its longitudinal center axis. The longitudinal center axis of the control rod defines together with the longitudinal center axis of the pressing spring a geometrical plane. This plane coincides with the longitudinal plane of symmetry of the rocker, which in turn coincides with the geometrical plane which extends perpendicularly to the longitudinal center axis.

Abstract: A web speed metering device to which a moving web is fed at a constant web infeed speed and from which the web periodically exits at a different speed that is correlated with the timing of a downstream operation performed on the moving web. The metering device is a rotatable member that is non-axisymmetric and that has a cross-sectional shape having a centroid that is offset from the axis of rotation of the rotatable member to change the web output speed as the web exits from the metering device. The metering device allows a web to be fed to a downstream cutting device and enables the web output speed to be regulated so that the web as it leaves the metering device can be cut transversely by a non-instantaneous cut that takes place over a predetermined machine-direction distance, such as a chevron-shaped cut.

Abstract: Two intermittently and oscillating driven feeding rollers (2; 3) are adapted to feed a strip-shaped workpiece (63). The bottom feeding roller (2) is supported in the frame (1) of the feeding device. The upper feeding roller (3) is supported in a rocker (30). The movement of the rocker (30) is controlled by a control disk (64) through a lever and a rod arrangement (40). The rocker (30) rests at one end (33) via a pressure spring (39) against the frame (1). At the opposite end (34) the rocker (30) rest against the frame (1) via a further pressure spring (36). The rocker (30) is supported in an overhung state on a cantilever which consists of a sleeve (70), a arm (71) projecting laterally from the sleeve (70) and a shaft (72) held clamped in the arm (71). The clamping bar (46) is firmly mounted to the shaft (72).

Abstract: A bearing unit for throwing a movable nip pulley on and off a stationary mounted nip pulley has an actuating device for throwing the movable nip pulley laterally onto a material web, and adjustable stops for adjusting an actuating travel of the movable nip pulley. The bearing unit includes a bearing plate whereon one of the adjustable stops is accommodated, and a bearing foot having an anchorage. The bearing plate is movable around the anchorage of the bearing foot so as to be adjusted coaxially with respect to the anchorage. The bearing plate also includes a prestressing element accommodated on the bearing plate, a bearing housing subjectible to a loading by the prestressing element, and a damping element actable upon the prestressing element. A folder including the bearing unit is disclosed.

Abstract: In a device for transporting and temporarily storing a web-like recording medium in an electrographic printing or copying device, the recording medium is fed with a roller arrangement to a temporary storage unit by use of friction. A loop forming in the temporary storage unit is adjusted by a pendulum. When the pendulum is nearing a vertical position, tension on the recording medium is decreased to such an extent that the roller arrangement feeding the recording medium no longer has frictional driving engagement with the recording medium so that feed of the recording medium substantially ceases. When the pendulum is moved away from the vertical position towards a horizontal position as a result of the loop in the temporary storage unit being decreased, tension stress in the recording medium increases and frictional engagement at the roller arrangement increases so that the recording medium is then fed by the roller arrangement.

Abstract: A strap driving device for looping machines has with a strap guiding channel for a looping strap and two pairs of drive rollers engaging in the strap guiding channel. Each pair of drive rollers has a driving roller driven in rotation and a pressing roller to be set to the latter for free running. For being set to the driving roller, the pressing roller is mounted on a rocker.

Abstract: The present invention provides for a press feed apparatus for use in feeding stock material to a high speed automatic press. The feed roller is driven by a servo motor integral with the shaft of the roller, the feed roller release mechanism is infinitely adjustable, and a feedback system is used to accurately determine the position of various shafts. The apparatus is controlled electronically, by a microprocessor or the like, which permits the press feed to be electronically geared to the press and accurately operate at high speeds.

Abstract: Apparatus for feeding and tensioning threads in a textile machine including corresponding weaving members supplied with the threads. For each thread, a calander is provided with first and second superimposed wheels between which the thread, coming from a corresponding store located upstream of the apparatus, is made to pass. The wheels are mounted on corresponding parallel, horizontal shafts. A body for supporting the wheels is rotatively mounted on a corresponding body shaft having axis parallel to one of the wheels. The body itself is supported by a fixed bearing structure. A thread-holder arm of flexible and elastic material is provided with one end fixed to the body and the other end of the arm is provided with a thread-guiding ring through which the thread, coming from the calander (H), is made to pass.

Abstract: An apparatus for clamping an individual thread out of a plurality of threads, which are guided in side-by-side relationship, includes a transport unit with a drivable transport shaft and a rotatable contact pressure shaft. A thread is guided between the shafts. A clamping unit with an abutment and a clamping pin acting thereagainst is used for clamping a respective thread. Between the clamping pin and one of the functional parts of the transport unit, there is an operative connection. Increasing the clamping of a thread in the clamping unit causes an increasing release of the thread in the transport unit and vice-versa. The operative connection can adopt a central position in which the thread is loose both in the transport unit and in the clamping unit.

Abstract: A press feed apparatus for use in feeding stock material to a high speed automatic press. The feed roller is driven by a servo motor integral with the shaft of the roller, the feed roller release mechanism is infinitely adjustable, and a feedback system is used to accurately determine the position of various shafts. The apparatus is controlled electronically, by a microprocessor or the like, which permits the press feed to be electronically geared to the press and accurately operate at high speeds.

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 gear mechanism provides for intermittent drive operation with precision stop location of angular position of one (driven) gear driven by another (drive) gear which is accomplished by increasing the precision of the distance maintained between the rotational centers of the gears so that a stabilized and precision amount of gear engagement is provided between both gears resulting in a precise amount of rotation imparted to the driven gear per revolution of the drive gear. The precisions of the distant between the gear rotational centers is accomplished by engagement of circumferential surfaces of corresponding cylindrical portions on each gear or provided on associated gears in the gear train of the gear mechanism.

Abstract: A web of foam material is fed to a cutting station by upper and lower rollers drawing the web from a supply roll and along a low-friction table surface. A cutter station has a knife bar and blade, with a clamp bar coupled with the knife bar. The lower draw roller has its axle mounted in a pair of pivoted arms depressible by presser feet on a presser foot bar carried by the knife bar. When a desired length of web has been drawn past the cutter station, actuation of the knife bar lowers the blade toward a grooved anvil, while the presser feet swing the arms down to depress the lower roller away from the web to stop drawing it. Immediately after interrupting drawing action, the web is clamped by the clamp bar, and then immediately thereafter cutting occurs. The table has bridge-like fingers extending downstream through grooves in the movable lower feed roller. These fingers support the web when the lower roller is swung down.

Abstract: A more space-effective method and device for the feeding of a material web (1) is obtained by making use of a web feeding unit (2) for feeding as well as correction of register. The web feeding unit (2) is provided for this purpose with two driving devices (14,15) which during operation are used alternately for feeding and register correction respectively of the material web.

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: Apparatus for inserting a flexible plastic pipe into an old, larger size pipeline system. A lower roller assembly has at least one lower roller which engages and supports the flexible pipe adjacent the receiving end of the larger size pipe and an upper roller assembly has at least one upper roller which engages the upper surface of the flexible pipe opposite the lower roller. An actuator imparts relative movement between the upper and lower roller assemblies selectively toward and away from each other so that the upper and lower rollers are in driving engagement with the flexible pipe upon movement of the roller assemblies toward each other. A drive unit rotates the upper and lower rollers in a direction to push the flexible pipe into the larger size pipe while the rollers are in driving engagement with the flexible pipe.

Abstract: The paper feeding mechanism in a printer has a paper feeding roller and a pressure roller cooperating with the paper feeding roller so as to feed a paper sandwiched therebetween for the printing operation of the paper, and the pressure roller is mounted on a resiliently energized swingable lever so that the pressure roller is releasably urged against the paper feeding roller for feeding the paper. The paper feeding mechanism further comprises a paper arresting member adapted to disengageably contact with and arrest the paper when actuated, an actuating lever coupled with swingable lever as well as the paper arresting member and a driving solenoid provided with a plunger actuated thereby and coupled with the actuating lever.

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: The invention provides a modification of the conventional rolling loop transport system, which enables the system to operate at the relatively high pull-down speeds required to match the 1.3 millisecond vertical blanking times of a video format, thereby allowing use of the improved transport in a video system. The instant transport utilizes two gaps in a rotor set apart at 180.degree., entrance of the film at a selected shallow angle, a shortened distance from the exposure gate to the film outlet with no decay of the film loop until expulsion, and a secondary pair of fixed registration pins disposed at the point of expulsion of the film at the film outlet which, in conjunction with a vacuum platen extending from the exposure gate to the film outlet, significantly reduces the jitter at the exposure gate, to allow the use of the transport in high density laser or electron beam recorders.

Abstract: A method and apparatus for the manufacture of inflatable liners for disposable dunnage bags. The apparatus includes means for measuring and severing an indefinite length of flattened tubular plastic material into predetermined lengths, sealing the overlying layers at one end of each severed length, and cutting an opening in the wall of the tubular material suitable for receiving an inflation valve. The method includes severing preselected lengths of tubular bag material from a supply thereof, sealing one end of each length, and cutting an opening through the bag wall to receive an inflation valve.

Abstract: Apparatus for providing metered lengths of adhesive bearing strips, from a supply roll, to a mechanism for fixing each of the metered strips to a different one of a plurality of stacks of sheets comprises: a pair of rollers providing a nip, and means for rotating one of the rollers to advance adhesive strip engaged by the nip. The axial length of the nip is smaller than the width of the adhesive bearing strip and the strip includes a hole which is larger than the nip, the hole being located near the end of the roll. As a result, when the hole is advanced into the nip by the rollers the rollers stop feeding the adhesive bearing strip to the mechanism.