PCT No. PCT/GB92/01122 Sec. 371 Date Sep. 1, 1993 Sec. 102(e) Date Sep. 1, 1993 PCT Filed Jun. 19, 1992 PCT Pub. No. WO92/22513 PCT Pub. Date Dec. 23, 1992.A concrete mortar is formed by mixing together sand, cement, water and a sewage sludge ash. A foam is added to the mortar to form a foamed concrete composition.

A battery-operated sensing and control circuit for a toilet room device such as a flush valve which is operated by an electric solenoid includes a continuously operable primary sensor and an intermittently operated secondary sensor. The primary sensor detects the presence of a user adjacent the toilet room device and starts a timing cycle. The secondary sensor is only powered up during the timing ...

The invention relates to a method for manufacturing a protective sheath made from a laminated material, by means of a draping mandrel. Advantageously, provision is made on the said mandrel (1) for two longitudinal elements (3) projecting with respect to its periphery (1A) and arranged along two diametrally opposed generatrices (M1, M2), delimiting the said mandrel into two longitudinal semicy...

To coat several cap-shaped substrates simultaneously in an economical way with the same and high quality, several coating chambers are connected into a cap coating station by a symmetrical gas line system with a common gas generator and by another gas line system with a common vacuum pump. The gas lines have a cross sectional area QA(x) and a cross sectional form QF(x) which as a function of the d...

A persulfate / catalyst breaker system is disclosed which effects controlled breaks of polysaccharide gelled fluids in the ambient temperature range without interfering with fluid performance. The catalyzing constituent of the breaker system comprises at least one member selected from the group of erythorbic acid or its salts, hydroxylamine hydrochloride, dihydroxymaleic acid and its salts, citric...

A voltage reference, e.g. of bandgap type, for a dense memory includes a frequency compensating capacitor 33 or a low-pass filter 36 to reduce output transients caused by substrate noise. An electrostatic screen may be diffused into the substrate surface to shield high-impedance circuit nodes from the noise, which may be caused by a substrate bias generator. The transient reduction methods allow a...

A winding method for winding a yarn by mounting and removing a defining guide on and from a yarn guide of a drum winder, wherein the defining guide defines a movement of a yarn in one direction according to a winding width and the drum winder has a normal traverse drum and a yarn guide provided at the section via which the yarn is fed to the traverse drum.

The invention relates to a volume-metering device (1) with moving equipment (15) mounted slidingly between a rest position and a use position, a chamber (12) for storing a product, bounded between a closure member (5) and a base element (3). The moving equipment (15) comprises a rod (18) which passes through the chamber (12) and which has a side notch (19) which projects beyond the base (3) when t...

A coupling device for a tractor has a frame (4) which is mounted on the rear underside (3) of the tractor (1). A drawbar (14), with a coupling member (15), is guided in the frame (4). The drawbar (14) is moved by a slide (18) and can be swung sideways about a vertical axis. Centering pieces (34) and stop blocks with centering faces (35) and stop faces (38) engage one another to laterally align and...

A shoe sole comprises at least one fibre reinforced part (71a, 71b) comprising a plastic matrix with fibres embedded therein, serves as a supporting component of the sole in a shoe sole, and is inseparably joined by welding or chemical bonding to the remainder of the sole body (63). The invention also includes a sports shoe 61 provided with such a sole.

Semiconductor memory device which comprises input and output terminals, in which the voltage-source line (45) or the earth line (46) of the input terminal is not connected to the part of the well or guard ring region of the substrate which the voltage-source line (43) or the earth line (44) of the output terminal contacts, or vice versa.

A hard-coating, heat-absorbing composition which is capable of absorbing near-infrared rays from sunlight and a heat-shielding substance is disclosed. The composition comprises a silicone varnish for hard-coating comprising polysiloxane and, dissolved therein, diphenylthiourea and copper monobutyl-o-phthalate. It can be applied to plastic substrate and heated to cure the silicone varnish, whereupo...

The here proposed invention regards a computerized water distributing system for irrigation plants which has an independent programmable electronic exchange (20) for each user or group of users, said exchange being managed by the water delivery board through from a centralized consumption programming, management and accounting unit and being designed to control the opening/closing of each electrov...

The invention regards a sound damper or silencer for eccentric unions, conduits or devices designed for the passage of water, consisting of a casing having the shape of a tubular sleeve made of elastic plastic material or rubber having two coaxial walls (13,14) spaced the one from the other, one Inner wall (13) defining an axial hole (15) with a conical development tapering in the direction of the...

A microwave apparatus for clinical hyperthermia in endogenous thermotherapy comprises a radiofrequency electromagnetic energy generator (1), an applicator (3) comprising a ridged conical-horn antenna (31) for administration of the electromagnetic energy, a skin temperature sensor (4) comprising insulating and preamplificating means (41), a bag (32) waterproof connected to the radiant opening of th...