Apparatus for severing the running web of tipping paper in a filter tipping machine has a rotary anvil whose cylindrical peripheral surface is contacted by the running web, a rotary carrier which is adjacent to and defines with the anvil a nip for the running web, a knife which is movably mounted in the carrier and has an elongated cutting edge which cooperates with the web-contacting portion of t...

This invention concerns a process for making alkanols which comprises contacting a mixture of CO and H2 at a pressure of 500 psig or greater and at a temperature of at least 150 DEG C. with a catalyst system comprising a ruthenium-containing compound and a halogen-free titanium or zirconium-containing compound dispersed in a low melting quaternary phosphonium or ammonium base or salt.

Hydraulic chambers for attenuation of wave motion within waterbed mattresses are buoyed by unencapsulated material made by binding expanded foam beads to a garnetted fiber matrix.

An ultraviolet irradiation bonding apparatus comprises an outer chamber 10 containing an ultraviolet lamp 31 and an inner chamber 11 an air duct being formed around the inner chamber 11, the inner chamber 11 being formed with an inlet 11a and an outlet 11b for parts being joined; an ultraviolet transmission plate 30 provided on the inner chamber 11 so as to cover an opening 11c formed in the upper...

The herbicide phenmedipham is prepared from meta-aminophenol by reaction with phosgene in an alkyl alkanoate solvent to make meta-hydroxyphenylcarbamic acid chloride, followed by reaction of the chloride with methanol and then reaction of the obtained methyl meta-hydroxyphenylcarbamate with meta-tolyl isocyanate, to obtain the required methyl 3-m- toylcarbamoyloxyphenyl-carbonate.

Apparatus and method for inspecting the finish of transparent containers, particularly glass containers, which include facility for directing diffused light energy laterally through the container finish as the container is rotated about its central axis. A camera includes a plurality of light sensitive elements disposed in a linear array angulated with respect to the container axis to view the ext...

A process for the gasification of sewage sludge or other carbon-containing waste materials in a gasifier (1) is described. A solid fuel and oxygen-containing gas are also fed into said gasifier. The residues formed during gasification collect at the bottom of the gasifier in the form of molten slag. Gasification takes place in a fluidized bed (9) formed above the slag bath and constituted by the d...

A drilling tool which has at least one helical fluid flow channel at its interior, is composed of a hard metal core having an exterior surface and a hard metal tubular casing having an interior surface. The casing encloses the core with their surfaces in firm contact so that the core and casing form a composite body. Each channel is formed as a groove in the surface of the core or casing.

There are described thermoplastic polypropylene pellets of improved processability containing a free radical source prodegradant which on remelting the pellets by extruding or the like, will react to further reduce the molecular weight as well as the molecular weight distribution of the polymer to a point where high capacity production of quality fibers and extruded products can be obtained. The f...

Polymeric compositions suitable for the manufacture of foamed articles, comprising a foaming agent in admixture with a dynamically vulcanized mix of an EPDM rubber or of an ethylene-propylene elastomeric copolymer with a thermoplastics olefinic polymer. A process for preparing such compositions comprises the steps of dynamically vulcanizing a mix of EPDM rubber or of an ethylene/propylene elastome...

Process for the preparation of cement-asbestos manufactured articles, by means of preparatory operations comprising the preparation of an aqueous suspension of cement and asbestos fibres, filetering and optional dewatering of the obtained paste, and formation of the manufactured article, characterized in that said suspension does not contain asbestos of the amosite type and that it is additioned w...

An angular rate sensor structure displaying high immunity to noise and feedback vibration is disclosed. Mounting means (15, 31A) supports by one end each of a pair of vibratory elements (10, 30) in symmetrical alignment about a nodal axis (20). The vibratory elements (10, 30) are driven in a first mode of movement, in direct opposition to one another about the nodal axis (20). Sensing means detect...

A superplasticizer cement admixture for portland cement based compositions formed from a low molecular weight alkali metal polyacrylate in combination with an alkali metal or alkaline earth metal polynaphthalene sulfonate-formaldehyde or an alkali metal lignosulfonate or an alkaline earth metal lignosulfonate or mixtures thereof.

Resin foam products which are infusible and insoluble in usual solvents and resist ignition and burning in air are prepared from unsaturated imides such as 4,4 min -methylenedianiline- bis-maleimide, unsaturated amic acids such as bis-maleamic acid and mixtures of unsaturated anhydrides such as maleic anhydride and poly(primary amines). The resin foams are made by heating to resin-forming- foaming...

Crosslinked polyolefin e.g. polyethylene foam waste can be successfully used with fresh uncrosslinked polyolefin e.g. polyethylene in the manufacture of a further polyolefin e.g. polyethylene product, after first subjecting the foam waste, in comminuted form, to controlled shear treatment, preferably in a continuous mixer extruder, at a temperature greater than 170 DEG C in order to reduce the deg...

It consists primarily of arranging seismic sensors (10) along the outer surface of the casing (2a, 2b) before being descended into a drilled well (1) and cementing the ring-shaped space so as to acoustically connect the sensors to the environmental formations.The sensors (10) and the transmission cables (11) which link them to the surface are secured to centering devices guiding the descent of the...

A cement-fibre product is manufactured by preparing fibres from a base cellulose stock such as wastepaper, which is first broken up into small pieces in a shredder and then distingrated in a dry hammer mill (Fig.1) such that the fibres are fibrillated. The fibres are mixed with a cement water slurry and the water then dried off leaving a laminated wet web on a porous support which is then allowed ...

An emulsion is prepared which comprises from 8 to 20 percent of a solvent (e.g. cyclohexanone), from 0.5 to 5 percent of an epoxy resin dissolved in the solvent to form a discontinuous phase, from 76 to 90 percent of a ketone precipitant as the continuous phase (e.g. acetone, methyl ethyl ketone or methyl isobutyl ketone, and an emulsifier in an amount sufficient to react stoichiometrically with t...

An adhesive for adhering fibrous materials, particularly polyester fibrous material to rubber is disclosed, which comprises polyhydric phenol-polysulfides, resorcin excess resorcin-formaldehyde condensates, and RFL solution composed of resorcin-formaldehyde condensate and rubber latex.

Extrudable elastomeric compositions are formed by blending from at least 10 percent, by weight, of an A-B-A' block copolymer where "A" and "A'" are each a thermoplastic endblock which includes a styrenic moiety and where "B" is an elastomeric poly(ethylene-butylene) midblock with up to about 90 per cent, by weight, of at least one polyolefin which, when blended with the A-B-A' block copolymer and ...