Abstract: A web aligning apparatus for use with multi-level web material such as carpeting, tufted fabrics and the like having a backing web and a pile on the backing web inwardly of a side edge of the backing web. The web aligning apparatus includes a pile engaging member mounted at a sensing location along the course of travel of the web for movement along a first path crosswise of the course of web travel and generally parallel to the face of the web at the sensing location to sense lateral deviations of the course of travel of the pile edge from a preselected position. The pile engaging member is also mounted for movement along a second arcuate path generally tangent to the web from a first position extending alongside the web backing at the sensing location toward a second position displaced along the arcuate path in the direction of travel of the web when the pile engaging member rides onto the pile.

Abstract: This invention relates to an improvement in an apparatus for monitoring the drawing-in operation and the tearing-off of a sheet of material in a dryer, wherein a sheet of material to be dried is guided over continuously-rotating screen-type conveyor belts, particularly jet dryers with conveyor belts positioned in several stages, and with means for transferring the sheet of material from one stage to the next-following stage, the improvement comprising a two-stage construction of the monitoring apparatus, a first stage comprising a first partial means for optically monitoring the path of the sheet of material during the drawing-in operation, and a second stage comprising a second partial means for monitoring the tension of the sheet of material in running operation, said first partial means releasing said second partial means upon completion of a malfunction-free drawing-in operation.

Abstract: A release device is provided which disables a tape end detection in a tape recorder which is provided with an apparatus for indicating a tape end, such as an end alarm unit or auto "shut-off" unit (which returns a sliding plate carrying a head assembly, thereby producing an audible indication). The release device comprises means including an externally operable member to disable a tape end detection. Said means may be automatically reset in response to a movement of a record/playback actuating member or in response to the loading or removal of a tape cassette. In addition, the release device includes a release inhibit means which prevents the release means from operating when the record/playback member is not in its operative position or when a tape cassette is not loaded.

Abstract: A printing apparatus includes a supply of printing material, a drive assembly coupled to the printing material and capable when enabled of advancing the material along a predetermined path past a printing station, and a detection device for detecting when the printing material fails to be advanced by at least a first predetermined amount when the drive assembly has been enabled to advance the material by at least a second predetermined amount.

Abstract: An endless-conveyor monitoring switch assembly includes an elongated frame having a shaft journaled for rotation therein and extending longitudinally therealong. A drive wheel is attached to and rotatable with the shaft at a first end of the elongated frame and a detecting switch is attached to the shaft at the opposite end of the elongated frame. A seesaw, U-shaped, mounting member is attached to the elongated frame at a point intermediate the drive wheel and the detecting switch for mounting the elongated frame on an endless-conveyor cable support. The mounting member allows the weight of the elongated frame and its attachments to pivot the frame in a seesaw manner to bring the drive wheel into contact with the endless conveyor. The detecting switch includes a conductive disc mounted on the shaft adjacent to a pendulum having permanent magnets and mercury switches mounted thereon.

Abstract: An improvement for use with an automatic print cutter mechanism which is actuated by sensing control indicia positioned along a continuous strip of photographic prints, said improvement comprising a wide scanning angle sensor capable of detecting said indicia of numerous configurations when same are misaligned with respect to the center line of said sensor and means for independent lateral and transverse adjustment of said sensor.

Abstract: A method and apparatus is disclosed for protecting the apparatus employed in the formation of glass fibers, glass fiber strands and the products produced therein. The method involves continuously contacting the moving glass fiber strand during the forming thereof from glass fibers with a strand detecting means provided between a gathering shoe and winding means and automatically deactivating the winding means and spiral assembly associated therewith in addition to protecting the application surface of the applicator when a loss of contact of strand between the gathering shoe and winding means is detected. This deactivation of the winding means and spiral prevents damage from glass beads which may form after a strand breakout in a glass fiber forming operation. The strand breakout is detected by means located between the gathering shoe and collet.

Abstract: A tape recorder, in particular a cassette recorder, with an automatic stop device, which during stoppage of the tape switches off the apparatus and releases the play button. During tape stoppage a rotatably journalled drive wheel is brought into contact with the flywheel with its circumference, after which said flywheel drives a force-transmitting member, preferably via a reduction gear, and the latching slide is released.

Abstract: A web of photographic paper having at its rear side at least one longitudinally extending reference line and at least one row of equally spaced marks which is parallel to the reference line. The reference line and the marks are applied below a coat of liquid-repellent synthetic plastic material. The reference line is scanned by a first photoelectric detector and the row of marks is scanned by a second photoelectric detector which remains in register with the row of marks because the first detector is maintained in register with the reference line by a follow-up control system. The second detector furnishes signals which are used to arrest the advancing rolls for the web in a photoelectric copying machine or subsequent to development of images so that the web is severed during each interval of stoppage.The reference line and the marks are applied simultaneously but prior to the application of photosensitive emulsion to the front side of the web.

Abstract: A sound-cinecamera comprising a motor for driving a capstan at uniform velocity, a motor for feeding a film intermittently, a detecting switch for detecting any superfluity or insufficiency of the film feed by said film-feeding motor relative to the film feed by said capstan driving motor and generating corresponding sag-signals, a speed-controlling circuit connected to said film-feeding motor and comprising a tachometer generator for maintaining the stability of the speed of said motor, and a sag-detecting circuit comprising said detecting switch, said sag-detecting circuit being connected to the power source of said film-feeding motor and the output thereof is connected to the controlling means of said speed-controlling circuit through a delay circuit, whereby said sag-signals generated by said detecting switch are transmitted to said controlling means independently of said speed-controlling circuit for regularizing fluctuations in the number of revolution of said film-feeding motor arising from fluctuation

Abstract: A web with labels thereon passes from a feed roll to a take-up reel for application of the labels to bottles in register with the bottles, by means of adjustable photoelectric means to detect index or register marks on the label web and move the web by controlled metering and shuttle movement.

Abstract: A device for sensing notches in an edge of a longitudinally transported film strip has a two-armed lever pivoted at a point to one side of the film path to deflect in the film plane. One arm carries at its end a spring biased roller which rotates freely against the moving unnotched film edge but which is biased into engagement with a notch to deflect the lever. The other lever arm is contacted by the actuating button of a microswitch the internal spring of which biases the lever to a quiescent position. A preselected deflection of the lever from this position actuates the microswitch to indicate the presence of a notch. Stops limit the deflection of the lever which is essentially normal to the direction of film movement, deflecting from a just obtuse to a just acute angle when entrained by a notch. The microswitch may be replaced by a photoelectric switching arrangement.

Abstract: The present invention relates to: process and apparatus for feeding continuous filaments to a continuous multifilament structure utilizing tangentially converging fluid streams to forward the filaments; process and apparatus for detecting breakage of filaments utilizing a rotatable cylinder, or a gap in a three dimensional body, wherein breakage of the filament causes a measurable change in the pressure of fluid flowing to the cylinder or the gap; process and apparatus for the production of continuous multifilament structures wherein, upon breakage of a continuous filament, the breakage detector automatically activates a filament feeder to temporarily insert a substitute filament.

Abstract: A pneumatic sensor head for monitoring the thickness of a continuously moving sheet of material passing therethrough. The sensor head is comprised of first and second blocks having respective first and second aligned nozzles separated by a distance sufficient to receive the sheet of material passing therethrough. The sensor head is further comprised of means for admitting pressurized fluid to the first and second nozzles to sense an average variation in the back pressure therefrom proportional to a change in the thickness of the sheet material being monitored. A plurality of removable stacked laminated sheets is positioned between the first and second blocks for adjusting the distance between the first and second nozzle, whereby to enable operation of the sensor head over wide variations in nominal thickness of monitored sheets of material.

Abstract: With a drag chain conveyor there is, for a timely warning of malfunctioning, associated a monitoring apparatus. The drag chain conveyor has a conveyor chain assembly which includes an endless conveyor chain trained about a drive sprocket and a return sprocket and a biasing mechanism for displacing the bearing support of the return sprocket to maintain the chain at a predetermined tension. The monitoring apparatus has at least one sensor connected to the chain assembly for monitoring the magnitude of at least one of the following chain parameters: chain tension, chain wear and chain slack. The sensor is coupled to a signal transmitter which emits a signal upon a nonpermitted deviation from the parameter magnitudes. A signal-responsive device is connected to the signal transmitter for emitting, for example, a visual warning signal.

Abstract: A drive shaft of an automatic printer engages tractors which, in turn, pull a paper web across a print mechanism. Located on the drive shaft is a drive shaft position cam which is fixed to the shaft and rotates therewith. Additionally, located upon the drive shaft for limited rotational movement thereon is a second cam. The shape of the second cam is similar to the shape of the first cam and formed integral with the second cam is a frictional surface engaged by the paper. During normal paper drive, the cams are out of registration and rotate in unison. In response to a paper jam condition, the first cam driven by the paper locks and the cams are forced into registration actuating a switch, the plunger of which rides on both of the cams. The switch signal thus serves to interrupt the paper drive mechanism in response to a paper jam condition.

Abstract: A system for monitoring the paper feed in printing mechanisms and the like, in which reference signals are derived in response to actuation of the feeding means for the paper web and in synchronism with the feed movement thereof, which signals may be compared with supervisory signals generated in response to advancing movement of the paper web, whereby predetermined abnormal relation between the reference and supervisory signals forms a criterion of improper paper advance conditions.

Abstract: A control system for one or more vacuum holddown devices for use in an apparatus employing flexible web material in a flattened condition. A plurality of perforated plenums are joined to a manifold connectible to a vacuum producing means. The pressure within the manifold is sensed and must be at a predetermined pressure before the drive system for the web material is activated thereby preventing bulging or buckling of the web material during startup and normal running of the material.

Abstract: A device for equalizing the speeds at which material moves through different sections of a machine which includes a tiltable structure sensitive to the depth of sag of the material passing from one section to another, a coil having a straight longitudinal axis is attached to the tiltable structure, and a spaced strip is disposed alongside the coil to provide a straight raceway containing a conductive ball, whereby tilting of the structure may allow gravity to move the ball along the raceway and so vary the impedance between the ball and one end of the coil. Another feature involves having multiple balls in the raceway, preferably of different diameter.

Abstract: A web alignment apparatus for use with multi-level web material such as carpeting, tufted fabrics and the like having a backing web and a pile on the backing web inwardly of the side edge of the backing web. The web alignment apparatus senses the pile edge and operates to maintain the pile edge in a preselected course relative to an apparatus that operates on the web. The sensor includes a web engaging member movable in a first path generally paralling the plane of the web to sense lateral deviations of the pile edge from the desired course of travel and the web engaging member is also movable in a second path transverse to the plane of the web to sense if the web engaging member rides onto the pile material, and the sensor is arranged to produce a signal when moved in either the first or second paths to operate the web alignment apparatus accordingly to shift the web relative to the apparatus operating thereon in a direction to bring the pile edge to the desired course of travel.