Abstract: Provided is a spacer for ionizing radiation therapy, which can be easily disposed in a living body, does not require abdominal surgery for removing the disposed spacer after radiation therapy, and can effectively separate a tissue to be treated from other tissues. The spacer for ionizing radiation therapy includes a fiber assembly obtained by three-dimensionally entangling a fibrous material formed of a biocompatible synthetic polymeric material. Specifically, the spacer has a thickness of 1 mm to 100 mm.

Abstract: Provided is a spacer for ionizing radiation therapy, which can be easily disposed in a living body, does not require abdominal surgery for removing the disposed spacer after radiation therapy, and can effectively separate a tissue to be treated from other tissues. The spacer for ionizing radiation therapy includes a fiber assembly obtained by three-dimensionally entangling a fibrous material formed of a biocompatible synthetic polymeric material. Specifically, the spacer has a thickness of 1 mm to 100 mm.

Abstract: A spinning ring, in which a ring flange portion 101 making a track permitting a ring traveller to run thereon is divided into an inner flange 103 and an outer flange 106, the inner flange 103 is continuously formed from a sheet steel, the outer flange is formed together and integral with a ring neck portion 109 and a mount portion 102 by cutting, the inner flange 103 and the outer flange 106 are secured to each other by a securing means, and a ring flange portion 101 is provided in an upper portion of the spinning ring 100. The spinning ring enables enhancing the ring flange portion in accuracy and wear resistance, and preventing fine vibrations of the ring flange portion from causing abnormal wear of and shortening of service life of a ring traveller and the ring flange portion and frequent yarn breakage leading to reduction in productivity and falling-off of the ring flange portion due to shock.

Abstract: A spinning ring, in which a ring flange portion 101 making a track permitting a ring traveller to run thereon is divided into an inner flange 103 and an outer flange 106, the inner flange 103 is continuously formed from a sheet steel, the outer flange is formed together and integral with a ring neck portion 109 and a mount portion 102 by cutting, the inner flange 103 and the outer flange 106 are secured to each other by a securing means, and a ring flange portion 101 is provided in an upper portion of the spinning ring 100. The spinning ring enables enhancing the ring flange portion in accuracy and wear resistance, and preventing fine vibrations of the ring flange portion from causing abnormal wear of and shortening of service life of a ring traveller and the ring flange portion and frequent yarn breakage leading to reduction in productivity and falling-off of the ring flange portion due to shock.

Abstract: A spinning ring for a ring spinning machine is produced by clamping and pressing a ring-like steel blank by a mandrel and a forming roll, pressing and deforming the blank by cold rolling, causing the blank to fluidize in, and fill, the gap between both machining surfaces of the forming roll and the mandrel, and rolling the blank in the direction of thickness and so expanding its diameter into a predetermined size. To prevent crack, a ring-like blank whose portion having a large machining quantity is in advance machined to a smaller thickness by machining means such as forging, cutting and rolling is preferably used. Since this production method does not essentially remove the material, the yield of the material is high, and because the number of production steps is less, the production cost can be reduced.

Abstract: The invention is to a non-woven fabric sheet for a storage battery separator. The sheet has an excellent property of holding electrolyte by using conjugate fibers having a specific sectional form. The sheet comprises an ethylene copolymer having a specific structure which can introduce a desirable amount of sulfo groups efficiently under mild reaction condtions. Conjugate fibers having a split sectional form include a first component and a second component having a radial arrangement. The conjugate fibers are obtained by forming an ethylene based random copolymer containing a unit represented by a formula --CH.sub.2 CH(COOH)--, with polypropylene. Subsequently, a non-woven fabric sheet of a thermally bonding type is obtained by mixing the conjugate fibers with polypropoylene fibers. Subsequently, a non-woven fabric sheet for a storage battery separator is obtained by sulfonating the non-woven fabric sheet using gas such as SO.sub.3 to form a unit of the formula --CH.sub.2 C(SO.sub.3 H)(COOH)--.

Abstract: The invention is to a non-woven fabric sheet for a storage battery separator. The sheet has an excellent property of holding electrolyte by using conjugate fibers having a specific sectional form. The sheet comprises an ethylene copolymer having a specific structure which can introduce a desirable amount of sulfo groups efficiently under mild reaction conditions. Conjugate fibers having a split sectional form include a first component and a second component having a radial arrangement. The conjugate fibers are obtained by forming an ethylene based random copolymer containing a unit represented by a formula --CH.sub.2 CH(COOH)--, with polypropylene. Subsequently, a non-woven fabric sheet of a thermally bonding type is obtained by mixing the conjugate fibers with polypropoylene fibers. Subsequently, a non-woven fabric sheet for a storage battery separator is obtained by sulfonating the non-woven fabric sheet using gas such as SO.sub.3 to form a unit of the formula --CH.sub.2 C(SO.sub.3 H)(COOH)--.

Abstract: In order to reliably clean a thermal fixing roll for fixing a non-fixed image in an image forming apparatus such as a copier or a laser beam printer, a non-woven fabric web having a crisscross structure or a parallel structure with a thermally bonded fiber sheet is disposed at least on the side in contact with the fixing roll. The thermally bonded fiber sheet comprises composite fibers including 5 to 70% by weight of electroless nickel plated `CONEX` fibers, which is obtained by depositing metallic nickel to a thickness of up to and including 0.2 .mu.m by an electroless plating method on `CONEX` fibers which have the surface formed with stripe-like grooves, macrovoids, fine irregularities or a modified cross-section and is heat-resistant and excellent in adhesion for nickel, in addition to non-plated `CONEX` fibers and undrawn polyester fibers. Preferably, the above non-fabric web is impregnated with a heat-resistant cationic charging agent as a cleaning roll material.

Abstract: Conjugate fibers using, as a surface component, ethylene copolymer containing a unit represented by a formula --CH.sub.2 --CH(COOH)--, and using, as a core component, polypropylene or like polyolefin fibers, are used to obtain thermally bonded non-woven fabric sheet to the treated with concentrated sulfuric acid or the like. By so doing, it is possible to readily introduce sulfo groups to replace tertiary carbon and thus impart the fibers with hydrophilicity. By using thus sulfonated thermal bonded non-woven fabric sheet as alkaline storage battery separators, it is possible to maintain high discharge capacity retention.

Abstract: A ring for spinning machinery is made of alloy steel containing Cr 0.9-26% as basic material. The basic material is cut in the desired ring shape, is subjected to gas carburizing, quenching, subzero treatment and tempering and is finally subjected to a grinding. This ring has a surface layer in which carbide occupies 30-90% in the rate of area, with a surface roughness which has an average roughness of less than Ra 0.25 .mu.m at a center line.

Abstract: A ballooning control ring for spinning machinery which has an annular body made of sintered material having a groove in which lubricating a lubricating wick is disposed, a cover body covering said groove and a handle fitting body. The lubricating wick in the groove is connected to an automatic oiling device provided below the handle fitting body. This ring prevents oil-soiling of the annular body and consequently prevents production of oil-stained yarn.

Abstract: A combing cylinder of a comber in spinning machinery has a combing cylinder having grooves having substantially rectangular cross-sectional shapes at regular intervals, each of the grooves having a small groove, and a plurality of laminated needle plate members having concave recessed portions at a position corresponding to the position at which the small groove is provided. An anti-slip member is locked in a space formed by the concave recessed portions and the small groove. The laminated needle plate member is formed by laminating needle plates, each having a concave recessed portion at one side of a needle inserting part and a connecting member locking part in which a connecting member is fixed.

Abstract: A ring for spinning comprising a flange portion, a neck portion and a trunk portion having a ring rail fitting-in part for use on ring spinning machines, twisting machines, etc. At least that portion of the ring which will contact a traveller is formed of ceramics, or the surface of said portion is formed of a ceramic coated layer, to attain high strength of the surface, smoothness in the surface, improved abrasion resistance, improved heat resistance, improved corrosion resistance and high spindle speed of more than 20,000 r.p.m.

Abstract: A combing roller for an open-end spinning machine which utilizes whirling airflow. The roller has on its circumferential surface and in its axial direction dovetail grooves, in which needle plate laminated members which have needle rows in the axial direction of the roller are removably mounted so that each needle row can be mounted and removed simply. The needle plate laminated member is made by connecting together in a row a plurality of needle plates, with a spacer between adjoining ones in some cases, by a connecting member. The needle plate has at its upper part a needle base portion with at least one needle head and at its lower part a needle insertion portion with a dovetail shape to be fitted in a dovetail groove with the roller, having at the substantially central part of its bottom a part in which the connecting member is inserted and fastened.

Abstract: A foundation for card clothing using a needle punch felt or a foamed needle punch felt for its surface layer and its base layer. At least one layer of cloth made of aromatic polyamide fiber yarn is bonded to one side of the base layer of needle punch felt, foamed needle punch felt or foamed non-woven fabric.This foundation for card clothing has high tensile strength, is less in elongation percentage, supports carding wires well, is excellent in elastic recovery and improves durability of card clothing to a large extent.