The mechanism is intended for fitting an assembly of tyre tread and side walls on a pre-assembled initially cylindrical tyre casing with rim beads. It comprises two resilient (and externally grooved) clamp rings which are radially expandable by inflating annular bellows elements inside these rings, such that the beads sealingly seat on the rings. - On deflation of the elements after tyre assembly,...

1363064 Pyrimidines and pteridines WELLCOME FOUNDATION Ltd 13 July 1971 [27 July 1970] 36289/70 Heading C2C Novel compounds of the Formula IV wherein Z is C 1-4 alkyl optionally having a methylene group attached to the ring system or hydroxymethyl may be prepared by condensing a 2 - amino - 4 - halogeno - 6 - hydroxy - 5- nitropyrimidine with a compound V The compounds IV may be reductively cyc...

The plates of lead storage battery cells are supported at least from the top by resilient means attached to the cell cover. They may also be supported by resilient means from the cell bottom. The respective resilient means are placed diagonally relative to each other. At least the bottom support means has variable resiliency depending on the external forces applied to the cell.

PURPOSE:To increase the durability of an electrode plate body by packing a paste into a base body made of lead or a lead alloy, covering thus made electrode plate with a porous acid-proof oxidation-proof active-material protecting member either after it is made or after it is subjected to formation, and sewing said protecting member and the active material layer together. CONSTITUTION:After an ele...

PURPOSE:To prevent horizontal and vertical movement of an electrode group during use by installing a locking concavity an electrode plate foot, and embedding it in a saddle set in a bottom cover of a no-bottom container comprising thermoplastic resin. CONSTITUTION:An electrode plate group 5 forming a locking concavity 9 in an electrode plate foot 8 is accommodated in a no-bottom container 1, then ...

A method and apparatus is disclosed for reducing metal ore to sponge metal in a vertical shaft, moving bed, gaseous reduction reactor by controlling the amount of gas intermixing between the reduction and cooling zones of the reactor to result in increased productivity and improved carburization of sponge iron. In accordance with a preferred embodiment, process efficiency is maximized while capita...

Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.

The method and apparatus may be used for copying a reference winding in order to produce a production winding similar to a reference winding. With regard to making spools of sewing thread, the production winding may have the same length of thread and winding cross-section as the reference winding. Alternatively, the main aim may be to make production windings having the same cross-section as the r...

A process for simultaneously disposing of refuse and producing a useful fuel or synthesis gas and an inert inorganic residue by feeding shredded refuse, from which ferrous metal has preferably been magnetically separated, and which has been compacted into hard pellets, into an oxygen fed pyrolizing, slagging shaft furnace.

PROCEDIMIENTO PARA LA OBTENCION DE FENMEDIFAM, QUE TIENE APLICACIONES EN AGRICULTURA COMO HERBICIDA. CONSISTE EN LA REACCION DE METAAMINOFENOL CON FOSGENO EN UN ALCOHOLATO DE ALCOHILO COMO DISOLVENTE A UNA TEMPERATURA COMPRENDIDA ENTRE -20 C Y 40 C; SEGUIDA DEL TRATAMIENTO DEL PRODUCTO OBTENIDO CON METANOL A UNA TEMPERATURA ENTRE 20 C Y 100 C; Y, FINALMENTE, REACCION CON ISOCIANATO DE METATOLILO, ...

A primary forming device (1) for the tire casings (2) in which a forming cylinder (9) is mounted on a single support shaft (8) and is provided with two half-drums (11, 12) slidably mounted with respect to the said shaft (8) and movable toward one another against the thrust of resilient means (52) interposed between them; each half-drum (11, 12) supporting externally a forming air chamber (64) havi...

In order to improve the flame protection effect without substantially impairing the mechanical properties of the articles covered with the flame protection agent, the flame protection agent is provided with a compound in a proportion by weight of 7.5 to 30% which contains at least one sulfo group or sulfonium ion. This compound is preferably a water soluble ammonium salt. As binder there is used a...

An aqueous phenol formaldehyde resole, suitable for use in the manufacture of phenolic foam insulation, has a molar ratio of formaldehyde to phenol in the range of from about 1.7:1 to about 2.3:1, and a weight average molecular weight greater than 800. Preferably, the resole also has a number average molecular weight greater than 350 and a dispersivity greater than about 1.7. Phenol formaldehyde r...

A closed cell phenolic foam having a cell structure in which the cell walls are substantially free of both ruptures and perforations is made by foaming and curing a foamable phenolic resole composition containing an aqueous phenol formaldehyde resole, a surfactant, a blowing agent and optionally other additives, with an acid foaming and curing agent which is an anhydrous aryl sulfonic acid which h...

A foamable phenolic resole composition is foamed and cured with an acid curing agent which is an anhydrous aryl sulfonic acid which has a pKa of less than about 2.0 and which reduces the compatibility of the resole with water, e.g. benzene, toluene or xylene sulfonic acids. The phenolic foam formed has cell walls which are substantially free of perforations. The preferred anhydrous aryl sulfonic a...

Rubber powders comprising unvulcanized rubber particles with an anti-tack agent covering are disclosed. These powders are made directly from rubber and anti-tack agent mixtures by mechanical action at a temperature above the glass transition temperature of the rubber. Typical rubbers used include NR, SBR, EPDM, BR and blends thereof and typical anti-tack agents include carbon black, silica and the...

1394604 Air laid web former E I DU PONT DE NEMOURS & CO 20 April 1972 [20 April 1971] 18346/72 Heading DIN An apparatus for forming textile webs on a moving screen 26 has a duct through which a closely controlled low turbulence air flow passes and into which a uniform layer of fibres 22 is projected through a slit at at least 3000 ft/min; the fibres remaining as a distinct layer within the thickne...

A collar for holding an instrument in a drill string is provided with a housing for attachment to the instrument, and elastomeric suspension means connecting the housing to the collar. Both housing and suspension means are pierced to pass drilling mud. A passage in the housing is controlled by a first valve responsive to the instrument. A second valve controls the passage defined between the housi...