Abstract: A fluid assisted doffer (30) is disclosed in combination with a fluid filter (10). The fluid filter (10) includes a rotatably mounted drum (23) covered with a filter screen (25). Fluid is filtered through screen (25) from the upstream to the downstream side to form an overlying porous layer of particulate matter. The downstream side of the drum (23) includes filter chambers (A) and (B) being sealed against direct fluid flow. The fluid assisted doffer comprises a doffing chamber (45) positioned on the downstream side of screen (25) at the position where the overlying porous layer of particulate matter is to be removed from the screen (25) and communicating through the screen (25) with the upstream side thereof. The doffing chamber (45) is sealed against direct fluid communication with filter chambers (A) and (B) on the downstream side of the screen (25).

Abstract: An apparatus and method is disclosed for separating entrained particulate matter from a conveying fluid. Particulate matter is collected and deposited in an overlying porous layer on an upstream side of a filter support (22) and then used as a filtering medium ("M") of enhanced filtering capacity. The invention includes a housing (10) having a filter support (22) positioned therein. A filter making zone (36) is defined within the housing (10) by fluid flow through a first predetermined part of the filter support (22) from its upstream to its downstream side for collecting the entrained particulate matter into an overlying porous layer. A filtration zone (37) is defined within the housing (10) by a fluid flow through a second predetermined part of the filter support (22) from the upstream to the downstream side thereof. The filter support (22) has thereon the overlying porous layer of particulate matter ("M") made in the filter making zone (36).

Abstract: Apparatus for stripping residual yarn from textile bobbins using an oscillating feed drum to feed bobbins singly to a position offset from the stripping position. Two pairs of centering forks transport the fed bobbin to a position in axial alignment with a plunger. Mounted with one pair of the centering forks is a pair of stripping blade support members, each having a pocket and a stripping blade having a plurality of symmetrically disposed stripping surfaces being slidably inserted in the pocket.

Abstract: A filter apparatus having an inlet duct (30) with a plurality of vanes (10) therein. Each vane (10) is positioned in the fluid duct (30) and adapted for deflecting fluid as it moves through the duct (30) and further for preventing the accumulation on the vane (10) of particulate matter entrained in the fluid. Vane (10) comprises a vane body (11) defining a forward edge portion (12) which faces upstream into the moving fluid. Forward edge portion (12) has a pre-determined angle of incidence to the direction of travel of the moving fluid sufficient to overcome frictional adherence of the particulate matter. Vane body (11) also has a free end (16) spaced apart from the inner walls of duct (30). The vane body (11) also defines a rearward edge portion (13) downstream of forward edge portion (12) and defines an angle within duct (30) corresponding to the extent of deflection to be applied to the moving fluid. One of the embodiments includes alternating vane bodies (11) positioned on opposite walls of the duct (30).

Abstract: An apparatus is disclosed for separating entrained particulate matter from a conveying fluid. Particulate matter is collected and deposited in an overlying porous layer on an upstream side of a filter support (22) and then used as a filtering medium ("M") of enhanced filtering capacity. The invention includes a housing (10) having a filter support (22) positioned therein. A filter making zone (36) is defined within the housing (10) by fluid flow through a first predetermined part of the filter support (22) from its upstream to its downstream side for collecting the entrained particulate matter into an overlying porous layer. A filtration zone (37) is defined within the housing (10) by a fluid flow through a second predetermined part of the filter support (22) from the upstream to the downstream side thereof. The filter support (22) has thereon the overlying porous layer of particulate matter ("M") made in the filter making zone (36).

Abstract: A textile yarn winding machine and method for winding yarn utilizing a rotatable package supporting spindle, two continuous belts movable oppositely along two respective traversal spans for traversingly moving yarn longitudinally along the package, and rotating yarn engaging fingers adjacent opposite ends of the package for positively transferring the yarn between the belts at the package ends. The belt traversal spans extend in crossing relationship from respectively opposite yarn engaging locations closely adjacent opposite ends of the package to respectively opposite disengaging locations spaced from the other package end to effect quick yarn reversals. The yarn engaging fingers move in circular reversal paths to positively engage the yarn at the disengaging locations of the spans, disengage it from the belt guiding it, and move it to the engaging location of the other belt.

Abstract: An apparatus for sorting textile bobbins into groups of empty bobbins and bobbins with residual yarn thereon, utilizing an inclined upwardly moving conveyor belt covered with card clothing for conveying upwardly and discharging therefrom bobbins having residual yarn thereon by engagement of the yarn by the card clothing and for downward sliding discharge therefrom of empty bobbins, and utilizing another inclined conveyor belt to transport and feed bobbins onto the card conveyor. By utilizing a wall extending between the two conveyor belts and providing an opening therein of a predetermined size and shape at the location at which bobbins are fed onto the card belt such that only empty bobbins or bobbins having less than a predetermined amount of yarn thereon can pass therethrough onto the card belt, bobbins can be additionally sorted according to the amount of yarn thereon.

Abstract: The apparatus has two pairs of long driven nip rolls on which bobbins with residual roving are advanced axially in a row with the nip rolls engaging the ends of residual roving and unwinding the roving into a delivery plenum therebelow through which the roving is drawn by suction to the surface of a rotating perforated delivery drum through which the suction is drawn to retain the roving thereon as the drum rotates the roving to a discharge plenum in which a shredding drum shreds the roving for discharge in pieces through a discharge plenum. A baffle plate is mounted closely adjacent the delivery drum to confine suction through the drum and to allow roving to be transported on the delivery drum between the drum and the plate, and extends adjacent the shredding drum to confine the roving thereto. In one embodiment, the baffle plate is perforated to allow suction to be drawn through the plate into the drum and to direct roving to the shredding drum.

Abstract: The apparatus has two pairs of long driven nip rolls on which bobbins with residual roving are advanced axially in a row with the nip rolls engaging the ends of residual roving and unwinding the roving into a delivery plenum therebelow through which the roving is drawn by suction to the surface of a rotating perforated delivery drum through which the suction is drawn to retain the roving thereon as the drum rotates the roving to a discharge plenum in which a shredding drum shreds the roving for discharge in pieces through a discharge plenum. A perforated baffle plate is mounted closely adjacent the delivery drum to confine suction through the drum and to allow suction to be drawn through the plate into the drum. The perforated baffle plate extends adjacent the shredding drum to confine the roving thereto and for suction to be drawn therethrough to direct the roving to the shredding drum.

Abstract: An apparatus and method for separating entrained particulate matter from a fluid wherein particulate matter is collected in an overlying porous layer on an upstream side of a rotatable, fluid-permeable filter in a first chamber, and rotatably conveyed into a second chamber and used as an additional filtering medium. The filter comprises a cylindrical drum having a filter surface thereon and is rotatably mounted in an enclosed housing having a fluid inlet and a fluid outlet. Fluid pumping means operatively communicate with the housing for inducing a flow of fluid into the housing through the inlet and out of the housing through the outlet. Chamber means are disposed within the housing and sealingly cooperate therewith and with the cylindrical drum and define a first chamber fluidly communicating with the inlet and a predetermined portion of the cylindrical drum on the upstream and downstream sides thereof.

Abstract: Means for stripping residual yarn from spent spinning tubes effectively, and while protecting the physical condition of the spinning tubes as they are handled for stripping, is provided by combining means for aligning a spinning tube axially for stripping with means for applying a pair of stripping blades oppositely and transversely to the body of an aligned spinning tube adjacent the base thereof, and means acting at the tip of an aligned spinning tube for pressing the same axially between the applied stripping blades, while additionally arranging means for relieving the stripping blade application whenever the pressing means is resisted by a stripping force sufficient to threaten spinning tube damage.

Abstract: A bobbin hoist powered by an air cylinder has a skip for holding, lifting, tilting, and dumping bobbins and is provided with skip guiding tracks to give substantially constantly increasing hoisting cable pull during tilting and dumping. A hinged door over the dumping mouth of the skip opens slowly to control dumping. Alternatively, a hinged dumping chute under the dumping mouth of the skip blocks dumping until the chute slowly unfolds downwardly to dumping position; a narrowed mouth on the chute further controls the bobbins for hand feeding therefrom.

Abstract: A rotating-reel type loom bobbin stripper provides air jets to entrain the waste end of yarn from a bobbin and deliver it to the stripping reels without impinging the jet directly on the yarn bunch. Bow springs automatically apply proper yet readily-releasable tension to the belts feeding the bobbins serially over the reels. A hold-down bar above the row of bobbins being stripped may be lifted readily to clear a jam. Downwardly inclined guide rails deliver bobbins to the feeding belts at an angle causing the bobbins to support themselves by their own heads during delivery and allowing loose waste to be blown down between rails and bobbins by an air jet. The inside walls of the incline rails are relieved to allow any "piece bobbin" which slips into normal position between the rails to travel on freely.

Abstract: The picker stick holding grip of a loop picker is significantly increased, and overall picker performance is materially improved through superior wear characteristics, by interposing a layer of thermoplastic material (e.g., nylon fabric) in the course of building the picker body by wrapping layers of rubberized fabric about picker loop and face block portions in preparation for molding the same during a vulcanizing cure.

Abstract: A filling bobbin inspection device is provided for checking the completeness of a bobbin stripping operation. Magnet means maintain the bobbins received from the stripping operation suspended at the butts thereof while feeler means checks each bobbin received and acts as a stationary cam upon detecting an incompletely stripped bobbin to cause all such bobbins to be dropped selectively from the magnet means suspension.