PURPOSE:To enable to perform winding and unwinding without deformation of a projection part and to facilitate storage and transportation, by a method wherein, while a liner pulled out of a holding means is reeled in a spiral manner as the liner is engaged with a winding reel, a long size object is located between the liners for storage. CONSTITUTION:With a starting switch made, a driving force is ...

Apparatus adapted for use in a water clarification system which removes particles of greater than a predetermined size from the clarified water includes a screen or a pair of concentric screens positioned in a clarified water storage area between an inlet and a clarified water outlet. One or more spray heads for direct a shower of high pressure filtered clarified water at the outlet side of the sc...

Described is a mill for stretching a web of fibrous material, in which the lower input roller (1) is made of steel and has a smooth, entirely cylindrical surface. This significantly improves the quality of the yarn and avoids to a large extent the occurrence of periodic defects in the yarn. The uniformity of the yarn produced by a stretching mill of this kind is significantly improved compared wit...

The method finds application in the production of electrodes for lead-acid batteries of a different configurations and for diffrent purposes. The electrodes have a highly active surface and increased strength between the active mass and the metal grid. According to the method, the active mass in the form of paste of lead chloride and water is laid on a lead grid of random shape and dimensions, as ...

The peripheral ring of a sectorised mould for tyres is constituted by a set of metal sheets 1 bearing on each other and stacked so as to be mutually pushing each other back. The ring therefore has the permanent tendency to increase in diameter. This tendency is combated by, for example, a conical shrink-fit element (hoop) which radially and simultaneously pushes back all the metal sheets 1.

A method of clamping an annular tread to a pneumatic tire casing comprises mounting the casing on a wheel, mounting the annular tread on a tread expander assembly. The assembly expands radially and stretches the tread to a size allowing the tread to circumferentially surround the casing. The stretched annular tread then is moved axially toward the casing to a position where it circumferentially su...

L'invenzione si riferisce a dispositivi di chiusura di sicurezza di contenitori per liquidi biologici e particolarmente di provette per il prelievo, trasporto e/o analisi di sangue, del tipo comprendente un sottotappo ed un tappo ambedue di ma-teriale perforabile.Il dispositivo di chiusura di sicurezza, in una preferita forma di realizzazione, si caratterizza per il fatto che il sottotappo (2) e i...

PCT No. PCT/DK92/00329 Sec. 371 Date May 2, 1994 Sec. 102(e) Date May 2, 1994 PCT Filed Nov. 10, 1992 PCT Pub. No. WO93/09753 PCT Pub. Date May 27, 1993.A container for receiving and separating blood plasma into its ingredients comprises two sealingly coupled sections (1 and 2). One container section (2) and the adjacent portion of the other container section are made of solid material, and the tw...

The card reader has a slot (3) and a transport mechanism carrying a card-shaped data carrier (6) to a receiving chamber. The transport mechanism contains a spring mechanism which is tensioned when a card is inserted and whose tension release causes ejection of the card. The force of an electromagnet (12) diametrically opposes the spring force of the spring mechanism to restrain the mechanism durin...

A method for operating a reflectance-reading device involves triggering a timing circuit by an initial decrease in reflectance by the wetting of the surface whose reflectance is being measured by a fluid which passes through the inert matrix. The method is particularly suitable for the measurement of glucose levels in blood without requiring separation of red blood cells from serum or plasma.

The sandwich (composite) elements having improved resistance to stress cracking corrosion, comprise A) at least one outer layer of polystyrene, preferably high-impact polystyrene having certain mechanical properties, and B) a layer of polyurethane foam, preferably rigid polyurethane foam, produced using difluorochloromethane as blowing agent and/or a blowing agent mixture essentially comprising ...

A packaging propylene copolymer film consisting essentially of a random copolymer of propylene and an alpha -olefin having 4 or more carbon atoms or a random copolymer of propylene, an alpha -olefin having 4 or more carbon atoms and ethylene, said random copolymer satisfying the following conditions (1) to (3): (1) the content of the alpha -olefin having 4 or more carbon atoms in the copolymer ...

A method of treating the surface of a water-absorbent resin is disclosed which comprises adding a hydrophilic crosslinking agent capable of reacting with at least two functional groups of the water-absorbent resin in a hydrophobic organic solvent to crosslink resin at or near its surface. The hydrophilic crosslinking agent is added in the form of a dispersion which is obtained by dispersing it in ...

An apparatus for grinding a disk having a center cup and a flat rim having a pair of opposite faces has a frame and an inner holder part rotatable relative to the frame about and displaceable on the frame along a holder axis and having a head formed with an outer holding face and with a central seat. An outer holder shaft rotatable relative to the frame and displaceable on the frame along the hold...

This invention provides improved seating for vehicles having cramped space for operators. A tubular frame (12) is disposed to the periphery of backrest and seat members (13), (14). The backrest slides and pivots with respect to the frame and is pivotally attached to the seat. Pivot blocks (34) fixed to the seat underside selectively engage a frame bearing shaft (24) to hold the backrest and seat a...