Abstract:
A lithium or lithium alloy film forming method comprises: the step of heating and evaporating lithium or lithium alloy under an atmosphere of inert gas in an ultra fine particle producing chamber to produce ultra fine particles of lithium or lithium alloy therein; the step of transporting the ultra fine particles through a transfer pipe with the inert gas into a film forming chamber under vacuum atmosphere; the step of jetting the ultra fine particles onto a substrate arranged in the film forming chamber from a nozzle; the step of moving a substrate holder holding the substrate in the X-direction and/or Y-direction; the step of preheating the substrate at a predetermined temperature within the range of 100 to the melting point of lithium or lithium alloy: and the step of forming a film of lithium or lithium alloy on the substrate being moved with the substrate holder.
Abstract:
A polyurethane elastomer fiber non-woven fabric contains polyurethane elastomer fiber filaments melt-bonded with one another, and has a tensile elongation of 100% or more, a 50% elongation recovery of 75% or more and a tear strength per METSUKE of 5.5 gf or more. The non-woven fabric can be prepared by a method of providing a thermoplastic polyurethane elastomer having Shore hardness A of 92 or more, drying the elastomer to a water content of 150 ppm or less, and melt-spinning and, at the same time, spraying it together with a high speed gas stream so as to deposit and laminate the elastomer into a sheet form. A synthetic leather using the non-woven fabric is also provided. The non-woven fabric has not only an excellent elasticity but also high tear strength.
Abstract:
A main rocker arm driven by a first cam, and a sub-rocker arm driven by a second cam larger than the first cam, are supported adjacent to each other. A sliding member which moves together with the sub-rocker arm, and a contact piece which comes into contact with the sliding member according to the slide position of the sliding member, are provided on the main rocker arm. The sliding member moves between a position where it is in contact with the contact piece and a position where it is not in contact with the contact piece according to the engine running conditions. The sliding member and contact member are constructed of iron or an iron alloy, while the main rocker arm is constructed of aluminum or an aluminum alloy. The construction of the cam change-over mechanism is therefore rendered lightweight, and machining of the main rocker arm is rendered facile.
Abstract:
Natural suede-like artificial leathers are manufactured by subjecting pile fibrous structures wherein at least the pile portion is composed of separatable composite filaments made by bonding different polymers having mutual low adhesive affinity with each other, the cross-section of which is constituted of a radial segment (A) and segments (B) complementing the radial segment or a radial segment (A), segments (B') corresponding to said radial segment and having wedge-shaped concave portions directing to the center and wedge-shaped segments (C) complementing said concave portions, to at least one of a heat treatment and a swelling treatment to shrink said fibrous structure at least 10% in the area, impregnating or coating said fibrous structures with a synthetic polymer solution or emulsion, coagulating said polymer solution or emulsion, drying the thus treated pile fibrous structure and then buffing said piles to raise naps.
Abstract:
A polyamide/polyurethane composite filament yarn, contains a filament having a polyamide sheath component and a polyurethane eccentric core component exposed, through a neck portion of uniform width, on the surface of the filament. The filament is manufactured by a process comprising inserting, immediately before extruding from a spinneret orifice, a molten polyurethane flow, at an oblique angle from above, into a molten polyamide flow flowing down in a conduit, so that a small part of the polyurethane flow radially projects in a restricted width through the thinnest portion of the polyamide flowing flows down the inner wall of the conduit. For this process, an employable spinneret comprises a leading duct for a polyamide connected to an orifice via a vertical conduit, another leading duct for a polyurethane connected to an injection pipe obliquely extending therefrom, protruding into said conduit, opening immediately before said orifice and having a slit extending longitudinally at its under side along its entire protruded length.
Abstract:
A tire tread has a total of four circumferential ribs and three circumferential grooves. The four ribs include two intermediate ribs and two outer ribs, and the three grooves include a center groove and two outer grooves. The two intermediate ribs are between the center groove and the two outer grooves, and the outer ribs are on the opposite sides of the outer grooves from the intermediate ribs. Rib cross slots and cross sipes extend outwardly from the outer grooves into the intermediate and outer ribs in herringbone patterns. The cross slots and cross sipes extend less than the full width of the ribs to provide the intermediate ribs with circumferential inner portions adjacent the center groove that are devoid of cross slots. These circumferential inner portions of the intermediate ribs have a plurality of circumferentially-spaced cross sipes that do not intersect the center groove. The rib cross slots are circumferentially-spaced a plurality of different distances to define a plurality of rib blocks having different lengths. Shorter rib blocks have a single cross sipe and longer rib blocks have double cross sipes. Shoulder cross slots intermediate the cross slots in the outer ribs overlap the outer rib cross slots by 25-35% of the outer rib cross slot length. The rib and shoulder cross slots have sloping closed end surfaces that intersect the outer surface of the tread at an angle of 35-42.degree.. Shoulder and outer rib cross sipes that are positioned opposite from the rib and shoulder cross slots do not intersect or overlap the rib or shoulder cross slots.
Abstract:
A cam shaft assembly comprises a first coupling between a drive collar rotatable with a driving shaft and an annular disc at a first position spaced from the shaft axis, and a second coupling between the disc and said hollow cam at a second position angularly spaced from said first position with respect to the shaft axis. The first and second couplings are so spaced from the shaft axis that they are at varying distances from the axis of the disc during operation. Each of the first and second couplings has a movable connection with the disc to permit the variation in its distance from the axis of the disc. The disc is rotatably supported in a disc housing. A control rod is mounted for rotation and has an eccentric control cam which controls movement of the disc housing. A pivot shaft extends through the disc housing for allowing movement of the disc housing following the eccentric control cam in which said plurality of hollow cams are disposed.
Abstract:
A service usage control system has: an image processor; and a service usage controller; wherein the image processor includes: an authentication information acceptor that accepts input of authentication information; an authentication information transmitter that transmits the authentication information to the service usage controller; and an identifying information transmitter that transmits identifying information for identifying the image processor to the service usage controller; and the service usage controller includes: an authentication information receiver that receives the authentication information from the image processor; an identifying information receiver that receives the identifying information from the image processor; an authenticator that performs authentication in accordance with the authentication information; and a processor that performs processing for enabling the image processor identified by the identifying information to use a predetermined service if the authentication is successful.
Abstract:
The present invention relates to melt-spun polyurethane elastic fiber having a degree of luster of 70 or less, the degree of luster being defined as (I/Io).times.100 where the amount of light reflecting off the surface of the fiber is I and the amount of light reflecting off a standard white plate is Io. On the surface of preferable polyurethane elastic fiber, 10 or more mountain-like protrusions of 0.2 to 5.05 to 110 parts by weight of 5 to 110 parts by weight of .mu.m in height are present every 10 .mu.m fiber in the axial direction.Also, the present invention relates to a process for producing polyurethane elastic fiber, comprising melt-spinning butylene terephthalate-based crystalline polyester (A) and thermoplastic polyurethane (B) wherein before spinning, the compound (A) is melt-mixed with thermoplastic polyurethane (B-1) having isocyanate groups in an amount of 150 to 500 .mu.mol/g.Further, the present invention relates to covered fiber comprising the polyurethane elastic fiber as a core.Even if stockings, tights, sox etc. are produced using the covered fiber of the present invention, the luster phenomenon as the drawback of particularly melted spun urethane does not occur, so it is possible to obtain products with excellent appearance.