Abstract:
A winding machine, such as UNIFIL loom winder, manufactured by Leesona Corporation, Warwick, Rhode Island 02887, has a spindle assembly for receiving and rotating a bobbin, and a transversing assembly including a transversing member releasably threadedly secured to a traverse rod, during winding, for guiding a strand of yarn being wound onto a bobbin. Upon completion of winding of a bobbin, the spindle assembly is stopped and the transversing member is released from the traverse rod and is returned to its starting point as the yarn is cut between the traversing member and the doffed, filled bobbin and is engaged for winding onto an empty bobbin previously donned onto the winder. The traversing and spindle assemblies are driven by mechanism within a casing of the winder. This mechanism includes a continuously driven drive shaft releasably connected by a clutch with a spindle shaft. A power take-off including a worm on the spindle shaft drives cam rotatably received on the spindle shaft for rotating and reciprocating the threaded traverse rod to provide the traversing member with builder and reciprocating motions. The cams and worm are effectively held against axial movement along the spindle shaft by a rigid member in abutting relationship with an end of the cams and adjustably fixed to the casing, and a noise deadening member mounted on the rigid member and holding the worm. When the traversing member has been returned to its starting position, the clutch again drivingly engages the drive shaft and spindle shaft whereupon the cycle is repeated.
Abstract:
An electrically rechargeable metal/air or metal/oxygen depolarized electrochemical cell and a method of generating electricity therefrom are described. The electrochemical cell comprises an anode capable of being regenerated and a composite cathode having an oxygen-permeable, hydrophobic member layered with catalyst and a bi-porous unit. The coarse pore layer of the bi-porous unit is in contact with the catalyst. A bubble barrier which can be integral with either the anode or composite cathode is in contact with the fine pore layer of the bi-porous unit. During discharge of the cell, the bi-porous unit is flooded with electrolyte and merely acts as a current collector. When charging, oxygen evolution occurs at the fine pore layer and, due to the bubble barrier, the evolved oxygen is forced into the coarse pore layer displacing the electrolyte, thereby protecting the catalyst layer from damage due to oxygen evolution and the high charging potential.
Abstract:
A heater for a false twist machine. A strand of yarn passes in a circuitous path through the heater and over guides which provide a fluid cushion supporting the strand.
Abstract:
A bobbin-handling system for a self-tending spinning frame is disclosed. Tenders move back and forth along spinning stations and stop to service the stations as required. For example, the tenders doff filled bobbins, and then donn and thread-up empty bobbins. A belt conveyor encircles the spinning frame and has upper runs for carrying empty bobbins to the tenders and lower runs for receiving filled bobbins from the tenders and discharging the filled bobbins from the system. Special bobbin guides are provided at corners where the conveyor belts cross each other. Empty bobbins are automatically spaced from each other as they are delivered to the conveyor and apparatus is provided for automatically maintaining adequate spacing of the bobbins after they are delivered to the conveyor.
Abstract:
A machine for winding yarn packages and including a device for scanning a series of packages being wound on a spinning or twisting machine, or the like, and providing a signal for initiating doffing of full packages. A pair of sensing elements are responsive to signals from opposite portions of a full package for actuating a signal device to commence the doffing operation. These sensing elements are sensitive, one to the signals from each of opposite portions of the full package, and are connected so that only when both of the sensing elements are actuated is a circuit completed to the signal device which initiates doffing.
Abstract:
A BOBBIN HANDLING APPARATUS FOR A SELF-TENDING SPINNING FRAME INCLUDES TENDERS WHICH MOVE BACK AND FORTH ALONG SPINNING STATIONS AND STOP, AS REQUIRED, TO SERVICE THE STATIONS. FOR EXAMPLE, THE TENDERS DOFF FILLED BOBBINS, AND THEN DONN AND THREAD-UP EMPTY BOBBINS. A BELT CONVEYOR ENCIRCLES THE SPINNING FRAME AND HAS UPPER RUNS FOR CARRYING EMPTY BOBBINS TO THE TENDERS AND LOWER RUNS FOR RECEIVING FILLED BOBBINS FROM THE TENDERS. THE EMPTY BOBBINS ARE NORMALLY SPACED FROM EACH ON THE CONVEYOR. EACH TENDER IS PROVIDED WITH A BOBBIN RECEIVER ALONGSIDE THE CONVEYOR. WHEN THE RECEIVER IS OPERATED TO AN ACTIVE POSITION FOR RECEIVING AN EMPTY BOBBIN, IT BY-PASSES ANY BOBBIN (OR A STRING OF BUNCHED BOBBINS) ALONGSIDE, AND WHEN A BOBBIN IS NOT ALONGSIDE IT MOVES TO A POSITION FOR RECEIVING A BOBBIN FROM THE CONVEYOR, THE BOBBIN CAUSING THE RECEIVER TO CLOSE AND THE BOBBIN IS MOVED INTO THE TENDER.
Abstract:
A METHOD OF PROCESSING YARN AND, MORE PARTICULARLY, FOR PRODUCING FALSE TWISTING YARN. AN ADVANCING STRAND OF YARN IS PASSED THROUGH A HEATER AND SUBSTANTIALLY REVERSES DIRECTION ACROSS AT LEST ONE COOL GUIDE BEFORE THE HEATED YARN PASSES THROUGH A FALSE TWIST SPINDLE. ALSO DISCLOSED IS A GUIDE PIN APPARATUS ABOUT WHICH THE YARN IS PASSED.
Abstract:
A bobbin handling apparatus in which filled bobbins are stored in a storage-conveyor bin and discharged through a chute and into a hopper. The bin continues to feed bobbins until a predetermined weight of bobbins is in the hopper whereupon a control system stops operation of the bin and concurrently closes a closure associated with the chute to prevent any bobbins subsequently passing from the bin from entering the weighing hopper. Strands of yarn extending from the bobbins are severed by a cutter mounted on the closure. As a container of an overhead conveyor passes the hopper a sliding trap door of the hopper opens thereby discharging the bobbins in the hopper into the container.
Abstract:
A FUEL CELL SYSTEM IS DESCRIBED EMPLOYING A SUPER ACID ELECTROLYTE. THE FUEL ELECTROCHEMICALLY OXIDIZED AT THE FUEL ELECTRODE IS A CARBONACEOUS MATERIAL, PREFERABLY BEING A C1-C16 ALKANE. THE PREFERRED SUPER ACID ELECTROLYTE IS ANTIMONY PENTAFLUORIDE-FLUOROSULFONIC ACID. THIS FUEL CELL SYSTEM PROVIDES A RAPID AND EFFICIENT ELECTROCHEMICAL CONVERSION OF ALKANES AND THE LIKE TO THEIR OXIDATION PRODUCTS.
Abstract:
Disclosed is a spindle blade for a false twist spindle characterized by a unitary element blade and a twist trapping pin that is mounted on one end of the spindle blade. The pin is located within the bore in the blade and the wall of the tube is characterized by the absence of any apertures therethrough. The blade is able to withstand rotational forces generated by a very high speed of rotation. Due to the enclosed position of the pin it is necessary to provide a method for threading the false twist spindle and such a method is also disclosed.