Abstract: A roll feed apparatus for intermittently feeding a strip by a constant length into manufacturing machines. A pair of first and second rolls and a pair of first and second brake shoes are arranged along a strip transporting path. The rolls move swingingly in a strip transporting direction to transport the strip clamped between the rolls. The rolls move away from each other when they swingingly move in a direction opposite to the strip transporting direction. First and second cams are mounted respectively on outer and inner shaft members of a drive shaft for rotation therewith. The inner shaft member can be adjusted in its angular position relative to the outer shaft member. The cams are operatively connected to the second brake shoe.

Abstract: An intermittent web feeding apparatus for intermittently feeding fixed length of a web of material during one cycle of a feeding operation by the cooperative operation of a pair of feed rollers for unwinding a web of material from a roll of web material and feeding the web of material to a web processing machine such as a bag-forming and packing machine, and for feeding the web of material to a processing position within the web processing machine, is disclosed. The intermittent web feeding apparatus is equipped with a single servomotor for driving the feed rollers through means of a first transmission mechanism, and the feeding units through means of a second transmission mechanism.

Abstract: A clip which is to separably couple an elastic belt conveyor with the leader of a web of photographic material has a slotted arm which is connectable to the leader and a frame which is integral with one end of the arm and has a square window bounded at two of its sides by triangular or square projections. The belt conveyor is caused to buckle so as to reduce its effective width, and one of its marginal portions is inserted in front of one of the projections from one side of the frame prior to insertion of the other marginal portion in front of the other projection. The projections engage one side of the conveyor and the other side of the conveyor is engaged by one side of the frame in front of and behind the window. The clip is flat and its arm is integral with the frame. The width of the window in the frame is somewhat less than the width of the conveyor.

Abstract: A web feed tractor having a pair of side frames, a driving pulley and at least one idler pulley rotatably supported between the side frames at spaced intervals, an endless feed belt trained around the driving and idler pulleys, at least one support roller rotatably disposed between the side frames and adapted to support the inner surface of the upper reach of the feed belt, and restraining means disposed between the driving and idler pulleys and the feed belt and adapted to restrain lateral meandering of the feed belt.

Abstract: A conversion kit to adapt a single-feed continuous form paper press to dual-feed continuous form paper operation and thereby double production capacity. The kit includes infeed and outfeed bars which are attachable by their ends to corresponding pairs of drive pins of the infeed and outfeed tractors. Each of the bars is provided with a centrally located drive pin to project through overlapping perforated edge portions of both of the continuous form papers being printed. Infeed and outfeed support arms are provided which support infeed and outfeed guides. The guides are movable into and out of position over the centrally located drive pins of the infeed and outfeed bars to maintain the overlapping perforated edge portions of the papers entrained on the centrally located drive pins.

Abstract: A device for processing a towel fabric having thicker piled portions and thinner plain weave portions alternate with the piled portions longitudinally of the towel fabric, comprising lower rollers for supporting thereon the towel fabric, the lower rollers having a common axis extending widthwise of the towel fabric, upper rollers movable toward and away from the lower rollers and adapted to nip each plain weave portion of the towel fabric when the upper rollers are moved toward the lower rollers, the upper rollers having an common axis extending widthwise of the towel fabric, releasable stopper assembly for selectively preventing the upper rollers from moving away from the lower rollers, and a finger assembly for tensionally moving the towel fabric forward along a specified path through and between the upper and lower rollers.

Abstract: A coffee- or tea-making machine is to be constructed so that its space-occupancy during non-use is considerably smaller than its space occupancy during use. For this purpose the maximum inner width, or alternately inner diameter of the receptacle for the filtrate is larger than the outer maximum width, or alternately, outer diameter of the filter container above a supporting flange of the filter container. The fresh-water container of the coffee- or tea-making machine has a base surface which corresponds at least to that of the receptacle, and the inner height of the fresh-water container corresponds at least to the combined height of the receptacle and of the filter container, when the filter container is inserted into the receptacle in a position reverse from a normal operating position of the filter container.

Abstract: An air bar for apparatus for drying a running paper web and floatingly suspending it without contact during the drying process, the air bars being spaced along both the upper and lower surface of the web. The air bars have an air distribution chamber including an easily manufactured and assembled slidable, perforated plate.

Abstract: An air bar for apparatus for drying a running paper web and floatingly suspending it without contact during the drying process, which air bars are spaced along both the upper and lower surface of the web. The air bars provided by the present invention have small holes in the inclined walls which form part of the nozzle slots. These holes provide fine scale turbulence generators for air passing through the holes to the slot nozzles.

Abstract: A paper tail nip threader for guiding a moving paper tail over and around a contoured surface. The apparatus is particularly useful for automatically threading a paper tail through a calender roll stack.A guide surface is shaped to conform to a portion of the surface over which the paper is to be passed. An air stream is directed across the guide surface in the desired direction of movement of the paper. The air stream is thus forced to flow in a contoured path which corresponds to the surface over which the paper is to be passed. The moving air stream "catches" the paper tail and carries it between the guide surface and the surface over which the paper is to be passed.

Abstract: A conveyor belt controller for controlling the variations in the lateral position of a running conveyor belt comprises a regulated stretch of conveyor belt having a guide member, particularly a guide roller, at one end, a controllable guiding mechanism able to laterally displace the conveyor belt when the conveyor belt is shifted from a correct position, and at least one video camera observing the lateral motion of the conveyor belt whose electrical image signal is convertable by a computer into a controlling command for the guiding mechanism. The video camera is mounted upstream from the guide member spaced approximately a distance equal to the length of the regulated stretch. An indicating member is provided in the image field of the video camera for the actual position of the guiding mechanism extending transversely to the guiding mechanism. Advantageously, the indicating member is provided with an indicator light source which is pulsed for more sensitive detection.

Abstract: An article for feeding into a mechanical printer the uppermost form of a continuous assembly of forms having lateral marginal sections with spaced holes coinciding with the spacing of the feed pins of the feed mechanism of the mechanical printer comprising an elongated narrow flexible strip foldable down the middle and having oppositely disposed holes in each folded half longitudinally spaced to coincide with the feed pin holes in the uppermost form and having one surface of the strip coated with a pressure sensitive adhesive film; said flexible strip adapted to be mounted on the marginal sections of the uppermost form with the holes therein aligned with the holes in the marginal section and secured to the marginal sections of said uppermost form so that the uppermost ends of the flexible strips extend substantially above the upper edge of the form, whereby the uppermost ends of the strips can be engaged by the mechanical feed means to facilitate properly positioning the uppermost form in the printer.

Abstract: A capstan bearing device comprises a cylindrical bearing main body extending through and fixed to a base plate and supporting at both end portions thereof a capstan, which is equipped at one end thereof with a flywheel, rotatably thereon; a cylindrical enclosure for the capstan, said enclosure defining an opening through a part of the peripheral wall thereof so as to receive an associated pinch roller through the opening, connected to one end of the bearing main body, enclosing the capstan therein and being adapted to be inserted in a capstan insertion hole of a tape casette; and means provided in adjacent to the free end of the capstan enclosure for the prevention of slip-off of the capstan.

Abstract: Sealing apparatus between inner and outer coaxial rotating shafts in which two sealing rings sealingly contact each other along confronting circumferential surfaces. In a position of rest, the rings surround the inner shaft with a predetermined circumferential sealing clearance of rotational symmetry. The sealing rings are supported in axially resilient manner between radial walls of a housing secured to the outer shaft which walls partly span the distance between the shafts. The sealing rings are pivotally connected to the housing for movement about pivot axes which are preferably 180.degree. apart from each other and, under the action of centrifugal force during rotation of the outer shaft, the rings pivot laterally towards surfaces of the housing to take up predetermined outer circumferential clearances of rotational symmetry between the outer periphery of the rings and the housing.

Abstract: A fluid operated stock feed apparatus for intermittently advancing stock along a feed path. The feed apparatus includes a stationary body having fluid operated stock holding clamps mounted thereon. A stock feed head is mounted for reciprocation relative to the body and has fluid operated stock feed clamps mounted thereon and a feed piston is mounted in the body for extending and retracting the stock feed head. A main control valve is provided in the body for controlling the application of fluid pressure to the fluid pressure operated stock holding and stock feed clamps and a pressure operated auxiliary valve is provided in the body and is responsive to the pressure from the main control valve for controlling the application of fluid pressure to the feed piston.

Abstract: Mops and process for making closed or uncut end mops particularly using single ply cotton yarn having a high degree of twist. The yarn is processed through a fringe making machine into lengths of pre-sewn fringe and the high twist yarn tends to bunch together in thick, ropy masses of yarn strands. The fringe is affixed to mop backs to form a mop, and the mops are then soaked in a high temperature water bath until the ropy yarn strands relax, straighten and separate. The mops are rinsed and transferred to a high temperature hot air dryer and dried until the separate yarn strands twist about their looped ends to form separate, individual doubled ply yarn strands with uncut ends.

Abstract: A retainer bushing for connecting a male member such as a shaft, rod or pin, for example the coupling pin of a motor vehicle clutch pedal, to a mechanical component having a bore accepting the shaft, rod or pin in the bore, for example the input member of an hydraulic master cylinder hydraulically connected to a slave cylinder actuating a clutch release mechanism. The retainer bushing has a flange at one end and one or more longitudinally projecting tangs at the other end. A closure wall is integrally formed at the other end of the retainer bushing. Each tang, which is elastically deflectable outwardly and inwardly, has a radially inwardly directed abutment surface for engagement with the other end of the bore when the flange is engaged at one end thereof, and an inwardly radially directed prong for engagement in a peripheral groove formed in the pin.

Abstract: The invention is concerned with improvements in a web draw-in system for a web printing press comprising printing units with register rolls around which the web is trained, a draw-in bar to be attached to the leading end of the web and two tractive elements extending along the side frames of the press and guided by bend pulleys following the web path in the press. The tractive elements extend from one drum at one end of the press to a further drum at the other end so that they may be wound onto and unwound from such drums moving the draw-in bar along the web path.

Abstract: A cassette which is adapted to contain a length of photographic film wound on a spool and which has an exit-slot from which the film is pulled from the cassette being characterized in that it comprises a scroll control chamber which is formed from a strip of light opague resilient material of such dimensions that it fits into the cassette and is retained therein by means in the cassette, the width of the greater part of the strip being such that it is disabled by means at each end of the cassette from touching the inside wall of the cassette and the width of the lesser part of the strip being such that the end of this part of the strip abuts the inside wall of the cassette, the scroll control chamber being so located in the cassette that it is able to accommodate a length of photographic film wound on a spool, the leading end of the film being led from the spool through the lengthwise gap in the scroll control chamber, then passing between the inside wall of the cassette and the outer wall of that part of the

Abstract: A convertible platen for use in a graphics plotter to allow its selective use as either as either a cut paper plotter or a roll paper plotter. The platen is formed from a specially designed aluminum extrusion and a pair is mounted with one on either side of the drum of a drum plotter between the drum and the supply/takeup rollers. The platens can be raised and held adjacent the drum and spanning the vacuum columns in the plotter to create a table having curved outer edges to support cut paper. They can be released and dropped into the vacuum columns whereby they lie against the outer surfaces and form the upper inner wall with curved upper edges over which paper smoothly is guided between the vacuum column and the supply/takeup rollers.