A process for the production of synthetic linear polymers which contain additives is described, in which the polymer and the additives, both in the fluid state, are mixed, the resulting mixture is homogenized, and the homogenized mixture is in part conveyed to apparatus which uses it to make a product and in part is recycled, the recycled amount being preferably at least 5% of the total weight of ...

An automatic door closer constructed for releasably holding a door in a predetermined partly open position mainly comprises a piston arranged in a cylinder bore of a housing and operatively connected to a closer shaft mounted in the housing turnable about an axis substantially normal to that of the cylindrical bore so that the piston will be reciprocated in the bore during turning of a door connec...

L'INVENTION CONCERNE UN SUPPORT A PLUSIEURS PINCES DE SERRAGE, DESTINE A LA SUSPENSION DE FEUILLES.

CE SUPPORT 10 COMPORTE PLUSIEURS PINCES A RESSORT DISPOSEES DANS DES BOITIERS 14 ET CONSTITUEES D'UN DISQUE 19 DE SERRAGE, D'UN RESSORT 18 ET D'UNE FACE EXTREME 15 D'UN BOITIER 14 ADJACENT AU BOITIER CONTENANT LE DISQUE 19. LE RESSORT 18 MAINTIENT CE DERNIER ELASTIQUEMENT EN CONTACT AVEC LA...

An improved dishwasher is provided, which is particularly intended for domestic low-pressure water supplies. The dishwasher has a container with a floor and an open top which is closable by a lid. A water inlet extends into and a water outlet drains water from the con= tainer. A rotatable spray unit is supported rotatably in the container, and has a tubular T-shaped spray member. The T-sha...

A thickening agent comprising polyether derivatives of the general formula: wherein R1 is a substituted or unsubstituted hydrocarbon radical or an alkylphenol radical having 10 or more carbon atoms, n is 10 to 100, m is 0 to 25, and p is 1 to 3, and wherein R2 is an alkyl radical having 8 to 30 carbon atoms. These polyether derivatives are prepared by the gradual addition of a long-cha...

Glaucoma or high intraocular pressure is treated by the topical ocular application of a 3-aryloxy-2-hydroxypropylamine beta-blocker of the formula - (RO.CO.A)x-Ar-O-CH2CH(OH)CH2NHR1 (I) - or its salts:- (where R is lower alkyl, lower cycloalkyl, lower alkenyl, lower alkynyl, lower alkyl or aryl carboxymethyl, haloloweralkyl, aryl or aralkyl; A is a bond, lower alkylenyl or lower alkenyl (sic); x i...

Turbine blade shrouds are sealed by injecting air on to the shroud immediately upstream of a shroud seal. This air serves two purposes: it creates a turbulent flow immediately upstream of the shroud seal, thus spoiling and reducing the leakage flow over the seal, and the hot gases which would otherwise leak over the seal are replaced by the cooler air, thus reducing energy wastage and improving S....

Cellular materials are obtained from unsaturated polyester resins reinforced with fillers having a density below 0.7 kg/lt by injecting a liquid foam, made from the resins by mechanical introduction of a gas therein into a closed mould. The liquid foam, including additives and optionally a reinforcement of synthetic, artificial, vegetable or mineral fibres having a length lower than 5 mm, and opti...

1497568 Hydraulic conveying CONTINENTAL OIL CO 3 April 1975 [23 April 1974 15 May 1974] 13614/75 Heading F1R [Also in Division F2] The arrangement shown in Figs. 1-6 (Figs. 3 and 4, not shown) is designed to support a loop of flexible hose which allows a mining machine to be moved in and out along a mine tunnel. As shown two pipes 32, 34 are supported on carts 36, which carts are joined by linkage...

A ceramic core has a high strength refractory matrix interspersed with a leachable refractory material the core is made from silicon nitride or carbide which is then partially oxidised to silica which is removable after casting by leaching out the silica material using caustic alkali to free non-leachable particles to be washed out with the leaching liquid.