PURPOSE: To provide in an economizer part, relating to a boiler mentioned in the title in combined cycle power generation equipment, an economizer bypass pipe having a flow control valve so as to stabilize the operation and improve the thermal efficiency. CONSTITUTION: The exhaust gas from a gas turbine 22 is drawn from a duct 23 into an exhaust gas recovery boiler 10, made to flow through a super...

Highly abrasion-resistant transfer coatings are provided on a wide variety of substrates, thermoplastic or thermosetting, by transfer coating from a mold surface or a flexible web, such as by use of a heat transfer tape, an ultra-thin coating consisting essentially of a non-resinous binder material such as microcrystalline cellulose together with mineral abrasive particles, preferably alumina or a...

L'invention concerne un procédé de préparation de dérivés acétyléniques de formule générale (I): = CH - R6 (I) dans laquelle R1 représente un atome d'hydrogène ou un radical phényle ou un radical de formule générale (II): (II) dans laquelle R2 et R3, identiques ou différents, représentent un atome d'hydrogène ou un radical aliphatique saturé ou non saturé éventuellement substitué, ou f...

A valve and closure assembly for an automatic transmission has a cover plate (40) which can be attached to a transmission housing (14) to close off the interior of the housing from atmosphere. A separator plate (42) and a plurality of solenoid-operated control valves (44 to 56) are secured to the cover plate and disposed within the transmission housing, and fluid passages (68,70,72) in the cover p...

The density of successive increments of a cigarette rod is measured by an apparatus which employs one or more photocells operating with ultraviolet, infrared or visible light. The radiation source of each photocell emits a beam of ultraviolet, infrared or visible light which penetrates through the wrapper and the filler of the rod and thereupon impinges upon one or more transducers which transmit ...

A cable mount for securing a bundle of cables to a mounting surface is integrally molded with a high strength releasable cable tie portion joined at its head to a surface mountable support plate by a flexible hinge adjacent a strap positioning and securing channel. Insertion of the tip of the strap of the cable tie portion into the channel automatically aligns the head of the cable tie to accept t...

A means for transmitting logic information from two members which move relative to one another by means of fluid logic signals.

A bead former (14) has a gripping mechanism (90,92) for gripping a leading end (106) of a bead ribbon (12) at a position recessed in the surface (18) of the former (14) during the initial rotation of the former (14). The gripping mechanism (90,92) has a seat member (92) movable radially outward of the former (14) into a supporting position at the surface (18) of the former (14) after releasing the...

The positions of a plurality of targets (26) are located using three or more sensors (20, 22, 24) such as radars which sense only the bearing angle of the targets. The intersecting bearing lines (30) form triangles (28) representing both true targets (26) and false targets (28). The false target triangles (28) are separated from the true target triangles by analyzing the size and position of each ...

A method is described for transferring idempotent and non-idempotent requests over a network between two or more computer systems 10,20. The method comprises sending a series of messages over a network to perform the request. The method defines five types of messages: a request message 110, a response message 113, a slow request message 112, an acknowledge message 114, and a state of health messag...

A pressure or temperature gauge includes a Bourdon tube which is coupled via a shaft to transmit rotation to a stylus carried by the shaft which makes a record on a cylindrical chart which moves axially of the shaft at a constant rate. The shaft is divided into two sections which are joined together by a flexible coupling; the upper section of the shaft is mounted for angular displacement about it...

A brake system for a rail vehicle provides a strain-gauge sensor in the brake-force path to be connected in a Wheatstone bridge control together with a variable resistance for setting the desired brake force. The latter includes an infrared photo FET bridged by a parallel-fixed resistor and forming another branch of the bridge, the photodiode being controlled by the vehicle operator. The Wheatston...

A process and an arrangement for the production of molten pig iron or steel pre-products from particulate ferrous material as well as for the production of reducing gas in a meltdown gasifier. A fluidized bed of coke particles is formed by the addition of coal and the injection of oxygen-containing gas. In order to ensure a satisfactory mode of operation of the meltdown gasifier even if coal of in...

An electrolyte permeable asbestos diaphragm is prepared by depositing asbestos and a particulate thermoplastic polymeric material from an aqueous slurry including alkali metal hydroxide onto a porous substrate, and heating the deposited asbestos, particulate thermoplastic polymeric material, and alkali metal hydroxide for a period of time, e.g., at least 2 hours, and at temperatures sufficient to ...

A process for preparing assymetric polyvinylidene fluoride microporous membranes using novel pore forming agents of an ammonium salt which is a non-solvent for the polymeric casting solution; such agents for example being ammonium hydroxide, ammonium chloride and the like.

Composite consisting of a thermoplastic or thermosetting polymer or a vulcanized or non-vulcanized rubber containing yarns, cords and/or fabrics provided with a polyester-ester urethane as adhesive and which polyester-ester urethane contains 30 to 80% by weight of blocks of ester units of a high-melting polyester and 70 to 20% by weight of blocks of ester units of a low-melting polyester which are...

Open-cell structures are filled with polyimide foam formed in place by the use of a foam precursor in powdered form comprised of a combination of (a) the reaction product of an excess of organic polyisocyanate and a member selected from the group consisting of furfuryl alcohol and condensation products thereof, and (b) an organic polycarboxylic compound containing two carboxylic anhydride groups. ...