Abstract: The invention relates to the radio-electrical transmission of accurate timing-mark signals. A space-diversity electrical connection is formed between a station having one single antenna and a station having two antennae and one of the stations is equipped with a receiver device which combines into one composite timing-mark signal the different repetitive timing-marks decoded and rectified from high-frequency signals which have traversed several spatial propagation paths. A common automatic gain control circuit weights the decoded and rectified timing marks according to a weighting which diminishes with the level of high frequency reception. Preferably the rectification of the timing marks is carried out non-linearly.

Abstract: A heat exchanger such as a liquid-to-gas heat exchanger of the type used in natural-draught cooling towers and other industrial applications comprises a series of flattened conduits with fins between them, the fins being strips located in grooves of the opposed surfaces of two adjacent conduits. Each fin strip has a flat central zone and longitudinal edge zones turned through an angle relatively to the flat central zone. Numerical parameters for an optimized heat exchanger with low resistance and high efficiency are given.

Abstract: A microcapsule containing a microorganism. It contains a microorganism of the genus Lactobacillus and/or Bifidobacterium and/or other geni of the intestinal flora coated with a fat which is solid at body temperature.

Abstract: In a method of regulating the temperature of a system in which exothermic type reactions take place at temperatures of several hundreds of degrees and which are followed by stoppage periods, the system (1) is put in contact with a first substance (4) whose boiling temperature (T2) is close to the required temperature (T) of the system, and heat which results from the exothermic reactions is used to boil the first substance (4). Thereafter heat which comes from the condensation of the vapor evolved by said boiling is used to heat a second substance (5) to its melting point (T1), the second substance (5) being chosen so that it melts at a temperature close to but lower than the boiling temperature (T2) of the first substance (4). In operation the second substance (5) is kept at a temperature which is substantially constant and a little higher than its melting point (T1) until the end of a period of exothermic reaction.

Abstract: A decorative emblem is formed by producing a decorative surface, which may be printed and embossed, on a foil substrate. An integral bezel is then formed around the periphery of the decorative surface. Fluent plastic is cast onto the decorative surface to form a meniscus over it. Upon curing, the plastic cap gives a lens effect to the decorative surface. The decorative emblem may be adapted with several types of different attachment means, such as an edge adhesive strip, for fastening it to the intended surface such as an automobile, appliance, or other object.

Abstract: This disclosure depicts a novel environmentally sealed and manually controlled swivel unit for use in an adjustable lighting fixture. The swivel unit comprises a base, a housing, a swivel ball device and a swivel ball controller. The swivel unit further comprises a tension means for forcing the swivel ball controller against the swivel ball device, and, in turn, for forcing the swivel ball device against a shoulder of the housing. This defines a predetermined lamp-holding force. The swivel ball controller allows the swivel ball device to rotate about a first axis and also to rotate about a second axis perpendicular to the first axis. The swivel ball device and the shoulder on the housing form an environmentally sealed juncture. The predetermined lamp-holding force retains the swivel ball device at any selected position while allowing easy manual movement of the swivel ball device.

Abstract: A press for moulding concrete products has a frame, a horizontal vibrating table, a board and a mould movable vertically between a demoulding upper position and a moulding lower position. A displacing device moves and selectively rigidly connects the mould to the table during vibration of concrete in the mould in a manner whereby the mould, the board and the table form a rigid unit subjected to vibration. The connecting device includes fixing legs attached to the mould and pairs of grippers for symmetrically selectively clamping the lower ends of the fixing legs.

Abstract: A web doffing apparatus of the type wherein a driven roll forms, together with a tangential blade, an entrance opening for a carded web. A blade support is illustrated which may be pivoted to a position facilitating removal of the blade for servicing and for return to improved operation.

Abstract: For heating synthetic yarns and fibers an elongated vessel filled with saturated steam is provided through which the yarn is continuously drawn. The steam condensates on the yarn and transfers its condensation heat to the yarn. For sealing the vessel (3) at the inlet (2) and the outlet (4), several apertures (6-9, 13-16) are provided in a pair of tubes (5,12) surrounding the traveling path of the yarn (1). The space between the first aperture and the opening adjacent the steam vessel (3) is connected to a blocking liquid supply pipe (30) and the space between the last aperture (9,16) and the inlet hole (10) and the outlet hole (17), respectively, for the yarn is connected to a blocking liquid return pipe (31). The blocking liquid supply pipe is kept under a pressure which is somewhat higher than the pressure within the steam vessel (3).

Abstract: A tubular ceramic part is formed with a shoulder at an open end of the part, the tubular part is inserted in an opening provided in a horizontal plate which is disposed inside a sintering chamber so that the part is kept suspended in the chamber by means of the shoulder which rests against the edge of the opening, a shouldered cylindrical plug is inserted into the open end of the tubular part until the shoulder of the plug bears against the end of the tubular part, and the chamber is brought to sintering temperature. The invention is implemented to produce solid beta sodium alumina electrolyte tubes for sodium-sulphur electric cells.

Abstract: A power conversion system comprising a combination of a liquefied natural gas vaporizing plant and a fuel burning power generating facility is disclosed. The liquefied natural gas vaporizing plant utilizes the cryogenic capacity of the liquefied natural gas to produce liquid air which is pumped to a high pressure by a liquid air pump. The liquid air is then brought into a heat exchanging relationship with air drawn into the vaporizing plant so that the high pressure liquid air is converted to high pressure gaseous air. The high pressure gaseous air which represents recovered reversible energy of the liquefied natural gas is fed into a combustion chamber of the fuel burning power generating plant. Since the power generating facility requires no significant output of power to drive a compressor to compress ambient air prior to its entry into the combustion chamber, the power generating facility is operated at a high efficiency.

Abstract: The invention relates to an apparatus for trimming molluscs, especially squid. According to the invention, the apparatus comprises a number of successive stations of treatment, consisting of (a) holding means (8) for holding the squid during trimming; (b) a cutter (37) for cutting the tentacles of the squid; (c) means for loosening (41) and gripping (43) of the head and viscera of the squid and extraction of these; (d) means (46) for removing part of the tissue from the inside of the mantle of the squid at the part where the pen is located; (e) means (54) for gripping and extracting the pen; and optionally (f) means (58) for removal of the squid from the holder (8); and (g) means (1) for transport of the squid between the treatment stations.

Abstract: A device for cooling the wall of a combustion chamber, in which air is taken from the space outside the chamber by means of an annular protuberance which extends beyond the outside of the chamber and forms an annular pocket, which is provided with outside air by means of holes and communicates with the interior of the chamber by means of an annular slot between the downstream internal wall of the chamber and a small annular tongue which is an extension of the upstream wall. The air intake holes for the pocket are arranged in the wall of the protuberance which is more or less perpendicular to the wall of the chamber which faces the air flow and have a sufficiently small diameter to make it possible to arrange them in at least three concentric rows, which are offset from one row to the next.

Abstract: This system includes optical fibers (21,26,49,51) which connect subscriber sets (p,n) to an optical interconnection center (59). An optical frequency F.sub.p and a modulation frequency f.sub.p are ascribed to each subscriber p, these frequencies being specific to the subscriber. The set of each subscriber p includes a laser (19) which delivers a wave (22) of frequency F.sub.p and means (9, 12 to 18) to modulate the amplitude of this wave at the frequency f.sub.n ascribed to the subscriber n with whom he wishes to communicate.

Abstract: Synchronous motor wherein an eccentric piece (6) mounted on the shaft (5) cooperates with a ball joint of which the outer cage is an integral part of the surface of the rotor (21) to maintain a predetermined tilting of the axis (0'0) of the rotor with respect to that of the stator. Application to the making of step-by-step motors.

Abstract: A portion of the stator of a gas turbine known as turbine shroud, which is ituated radially opposite the mobile vanes of a turbine stage includes an "abradable" member supported by a first shell braced by a second shell and connected with turbine casing 2 by a thin, i.e. flexible, annular wall member embedded in a casing. Cooling air inflates the second shell so as to brace the exterior shell and circulates between the two shells so as to cool them and also cools the "abradable" member by impingement. The present invention is applicable to aviation turbojets.

Abstract: A solid-state, multistage temperature controller for automatically controlling the operation of fans to maintain the temperature of an associated engine within preselected limits.

Abstract: The method of forming an abradable stator joint for a stage of an axial to machine having a cylindrical ring, the internal wall of which is closely adjacent to the tips of the blades of the stage. Honeycomb stampings are made in a strip of material set into the said wall preferably by means of serrated wheel action.

Abstract: In anesthesia apparatus for supplying oxygen and an anesthesia gas through respective flow control valves to a patient breathing circuit an oxygen flow ratio controller is provided. The system includes a restrictor in the pipeline of the oxygen flow control valve and a restrictor in the pipeline of the anesthesia gas flow control valve. The oxygen flow ratio controller includes differential pressure sensing means and anesthesia gas flow control means, the differential pressure sensing means includes a diaphragm assembly responsive to the pressure in the oxygen pipeline and another diaphragm assembly responsive to the pressure in the anesthesia gas pipeline and is coupled to the restrictor pipelines. The anesthesia gas flow control means controls the flow of gas to the anesthesia gas pipeline. The diaphragm assemblies are opposed to each other and are coupled together by a displaceable linkage.