PURPOSE:To provide a good maneuverable automatic transmission which can obtain stable vehicle speed retainng function and retain the speed while automatically shifting to suitable gear ratio when the running load of the vehicle is varying. CONSTITUTION:This automatic transmission automatically shifts the gear ratio via a hydraulic actuator 21 upon reception of a position signal from a selector lev...

Coal tar resulting from the gasification of coal in an industrial gas producer, instead of being discarded as waste, is condensed from the hot fuel gas by a mist-like spray of water to produce a fog-like suspension of tar mixed with the fuel gas. This mixture flows to an electric precipitator where the tar is precipitated and the fuel gas and water vapor are conducted to a mixer while the tar, whi...

A water purification arrangement which uses as the water treating agent ionized oxygen allotrope gas in multiple (multivalent) ion charge forms (as distinguished from common chemical treatment substances), in which the raw material for practicing the invention is ambient atmospheric air, and specifically its atmospheric oxygen content. The arrangement provided has a gas flow path having multivalen...

A reaction chamber assembly comprises a tapered pin having a radial chamber in which chemical or digestive reactions are to be carried out, and a collar member having a tapered bore of a taper size corresponding to that of the pin member. A closure mechanism is provided for urging the pin member into the bore so that there is a sealing engagement between the tapered surfaces of the members which a...

An automatic gain control circuit in which a current source is provided for charging a capacitor and a current source is provided for discharging it, there being means for controlling the ratio of the currents supplied by each source in response to the amplitude of the alternating wave being controlled.

A mat like composite body (1) comprising a cover layer (2) of a fiber or filament fleece and a backing layer (3) comprising the same fleece or of a synthetic plastic sheet (7), in particular one provided with depressions (8), between the cover layer (2) and the backing layer (3) a layer (5) of particles (6) of an inert material, preferably rock particles, is arranged. The three layers (2, 3 5) are...

Microprocessor based controls are provided for operating document handling apparatus. Such document handling apparatus includes apparatus for moving sheets in a first direction at spaced intervals along a predetermined path, a sensor for detecting the passage of sheets and for detecting predetermined characteristics of the sheets, at least one of those sensors being adapted to generate a signal up...

An article including a placemat is formed from paperboard and includes a plurality of compartments for holding foodstuffs and a beverage container. The article is made from a one-piece paperboard blank which is precut, scored and glued to a flat storage configuration. The compartments are expandable prior to use with internal walls which are deflected to hold the compartments in their expanded for...

A pressurized thin walled can from which a fluent pressurized product is dispensed through a discharge valve. The pressurized can is divided into a product chamber and a propellant chamber by an impervious flexible diaphragm, preferably shaped in the form of a cup and formed of a plastic material, which is mounted to the wall inside the can and away from the can ends. As product to be dispensed is...

In the treatment of high strength wastewater containing anaerobically digestible nutrients and organic substrates, the water is passed through a sealed reactor housing and the pressure in the headspace over the water is reduced under controlled conditions to provide for optimum operating conditions.

A method and apparatus for increasing the capacity of an activated sludge wastewater treatment plant which utilizes microscreens in conjunction with rotating biological contactors that are placed in the primary settling tank, the aeration tank and the final clarification tank. A rotatable microscreen is placed upstream of the primary settling tank and downstream of the final clarification tank. Th...

BOAT The invention discloses a catamaran type boat having two similar boat demi-hulls which are spaced apart and which are substantially parallel, each demi-hull having a base line (BL).The boat further includes a superstructure connecting the two demi-hulls transversely; an open space in the form of a tunnel defined between the superstructure and the two demi-hulls; a longitudinal centre of gravi...

ELECTRONIC WELL TOOLS AND MULTI-CHANNEL RECORDER An electronic recording device and multiple sensors for measuring various parameters at locations remote from the recording device. The multiple sensors can be joined together to comprise a downhole tool for measuring various parameters within a well bore and transmitting information concerning each parameter to the recording device via a single con...

A method of and a sensor for quantitative electroanalytical determination of elemental hydrogen in a fluid medium are disclosed. A membrane enclosed amperometric cell is used that has at least two electrodes in contact with an aqueous electrolyte to provide a reaction impedance of the cell; the electrolyte is separated from the fluid medium by a membrane that is permeable to elemental hydrogen but...

Infection-resistant materials, and methods of preparing same, suitable for use within the interior of a human or animal body in such forms as vascular grafts prostheses, or other implanted devices. The material is rendered infection-resistant by incorporating therein antimicrobial agents, such as nalidixic acid derivatives or metal salts of nalidixic acid derivatives. In particular illustrative em...