Abstract: A method for the generation of a supply of ozone containing process gas exhibiting high effective ozone content basically involves the steps of (a) providing a stream of an oxygen containing feed gas having a temperature not greater than about 50.degree. C. and an absolute pressure between about 1 and 3 bar, (b) subjecting the stream of feed gas to an electric discharge that transforms some of its oxygen content into ozone to produce a stream of ozone containing gas, and (c) compressing the ozone containing gas with simultaneous cooling thereof to produce a stream of ozone containing process gas having a temperature not greater than about the temperature of the feed gas, an absolute pressure greater than 3 bar and an absolute ozone partial pressure of at least 0.2 bar. Various systems for carrying out such methods are disclosed.

Abstract: In order to open the watch case (1) by extraction of the crystal (2) such case is secured in an enclosure (3) after its stem and crown have been removed. Next, a suction cup (4) is applied to the crystal, such suction cup being maneuverable from outside the enclosure by means of a handle (40). By means of a pump controlled by a lever (37) the enclosure is subjected to a predetermined overpressure, following which a pulling force (A) is exerted on the suction cup until extraction of the crystal. The overpressure being the same at both the exterior and interior of the case, no displacement of air is brought about and hence no damage to the watch mechanism when the crystal is separated from the case.

Abstract: This pushpiece (1) for a timepiece includes a movable head (3) slidingly mounted on a tube (4), said head partially enveloping such tube. The head exhibits a central cylindrical core (5) which penetrates into the tube, at least one O ring seal (6) being located between the tube and the core. A return spring (7) urges the head towards the exterior. The core (5) is extended by a stem (8), the diameter of which is greater than the diameter of the core, the spring being arranged between the stem and the tube. In this manner the spring is located in a sealed zone of the pushpiece and the mean diameter of the O ring seal is less than the mean diameter of the spring.

Abstract: This valve (1) for a watch case comprises a head (3) and a tube (4) onto which the head can be screwed. A stem (8) fixed to a core (5) borne by the head is surrounded by a return spring (7) bearing, on the one hand, under the head and, on the other hand, onto a bottom (3) exhibited by the tube through a ring (14) and a first packing (6). A second packing (18) is mounted under the head in line with the tube. When the head is screwed down the second packing (18) is compressed and the valve is inoperative and at the same time totally sealed. When the head is unscrewed the first packing (6) is able to rise up against the return force of spring (7) if the fluid pressure prevailing within the case is higher than that on the exterior thereof. An excessive interior pressure which can damage the case is thus avoided.

Abstract: Adjustable guide rail apparatus for independently adjusting positions of guide rails disposed respectively on opposite sides of a path of a conveyor, for guiding articles. The apparatus comprises first and second elongated members to be disposed respectively in parallel and along outward surfaces of the guide rails, each member being provided with threaded sections along its length; first and second supports for supporting respectively the members in parallel to and along the outward surfaces, each support including several bodies, each body having a first channel providing a passage to and supporting the corresponding elongated member, each support having certain of their bodies provided with a second channel that is transversal and adjacent to the corresponding first channel; and rods respectively associated with certain bodies, each rod having an end that can be fixed onto the corresponding guide rail, and a threaded portion along its length.

Abstract: A process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The fluids are contacted with a soluble quaternary ammonium hydroxide and preferably an organo mercaptan and alcohol to convert the elemental sulfur to a soluble polysulfide product which is substantially non-corrosive.

Abstract: An improved process for the preparation of glycidyl ethers of formula I ##STR1## wherein Q is an aliphatic, cycloaliphatic or araliphatic radical of a valency m, R is --H or --CH.sub.3, and m is an integer from 1 to 10,by reacting an alcohol of formula Q--(OH).sub.m with m mol of an epihalohydrin of formula II ##STR2## in the presence of a catalyst to the corresponding halohydrin ether, and dehydrohalogenating said halohydrin ether with an alkali metal hydroxide to give a compound of formula I, wherein Q, m and R are as defined above and Hal is halogen,which process comprises using as catalysta) tin difluoride orb) a divalent tin halide in conjunction with a co-catalyst.

Abstract: The invention provides a new stirring apparatus for stirring the liquid metal contents of a furnace, particularly the shallow furnaces used in the processing of aluminum and its alloys. The apparatus consists a reservoir separate from the furnace of relatively large horizontal cross-section and volume, into which a vaccuum draws metal from the furnace through a nozzle, the metal then being returned by gas pressure forcibly into the furnace through the nozzle in the form of a horizontally directed jet. The cycle is repeated at sufficiently close intervals to ensure that the furnace bath is quickly and effectively mixed. The nozzle directs the molten metal entering the reservoir tangentially to swirl the metal and reduce the accumulation of dross. The reservoir comprises a bottom static part including the nozzle and a readily removable top cover carrying heaters for heating the reservoir interior and the dross that deposits on the side wall to ease its removal.

Abstract: A strain gauge balance consisting of an outer longitudinal shell and a monopiece inner center core; the outer shell having a open end and a closed end with a frustoconical bore extending towards the closed end, and the inner core having frusto conical shaped ends, one end being sized to fit within the frusto conical core and the other end being sized to fit into a sting; four radially extending, equally spaced, webs formed within the core and at each end of the core inboard of the frusto conical ends, and a central region of two longitudinally separated, semicircular cross-section parts each being formed within the part, with tensioning rings, one disposed diagonally to the other, and a number of strain gauges secured to the webs and the rings to determine induced strain in 6 degrees of freedom.

Abstract: A road asphalt composition having a penetration at 25.degree. C. in the range of 85 to 100 is made by blending together: (a) a pitch having an initial boiling point of at least 520.degree. C. obtained as a residue in the visbreaking of crude oil, and (b) a distillation residue having a penetration at 25.degree. C. in the range of 150 to 500 obtained in the distillation of crude oil.

Abstract: The present invention relates to a roofing grade asphalt composition which comprises a blend of (a) a petroleum pitch obtained as a residue in the hydrocracking of hydrocarbon oils and (b) as a diluent therefor preferably a paving grade asphalt cement of 150-200 penetration.

Abstract: A process for breaking oil-in-water emulsions formed during recovery of bitumen or heavy oil. It comprises contacting the emulsion with a high ash particulate agent selected from high ash coal rejects, fly ash from coking gas and red mud from the production of alumina.

Abstract: A process is described for removing both high polar and neutral nitrogen compounds from petroleum processing liquid products and petroleum distillate fractions. According to the novel feature, a chlorosilylated silica gel is used as adsorbent for the nitrogen compounds. This adsorbent has been found to be superior to regular silica gel and commercial ion exchange resins for removing particularly the neutral nitrogen compounds.

Abstract: Hot water is an important component in the recovery or extraction of bitumen and heavy oils. This hot water tends to form emulsions with the oil and when these emulsions are broken by demulsifiers and the oil separates, the remaining water retains a black color and cannot be recycled in the process. The black color has been most difficult to remove, but it has now been found that it can quite easily be removed by certain selected adsorbents. These include high ash coal rejects, fly ash from coking gas and red mud.

Abstract: A composition for recovering and upgrading sludge that accumulates in vessels for storing and transporting petroleum products comprises a solvent made up of at least one aliphatic hydrocarbon and at least one aromatic monohalogenated hydrocarbon of the benzene or naphthalene type, together with a demulsifying and dispersing agent that is an aliphatic straight-chain oxyethylated amineated derivative or a quaternary ammonium compound having at least one alkyl and at least one aryl residue in the form of thiocyano derivative.The composition is dissolved in a hydrocarbon in a proportion of from 2 to 10% by weight, the resulting solution is projected on to the residues at a pressure of from 2 to 15 bars, and the resulting suspension is recycled, recovered, and treated like crude oil.The invention is applied to the recovery and upgrading of sludges which accumulate in storage vessels and petroleum product transport vessels, whether they are on the ground or on land or sea transport vessels.

Abstract: A process for cleaning surfaces of installations fouled by products of combustion of carbon-bearing materials, such as in particular boiler combustion chambers, rotary or static heat exchangers, combustion product ducts and flues, electrostatic filters, etc., which are to be cleaned without having to stop the combustion process, in order to maintain maximum thermal efficiency in order thereby to make a substantial energy saving, in which an aqueous solution of ammonium nitrate and potassium nitrate is injected into the installation, the deposited substances being detached from the installation by means of sound sources.

Abstract: An electronic feeding bridge for a telephone line uses a two-stage circuit to provide high a.c. impedance between the load and the line and between the line and the load. The first stage includes one NPN type transistor and one PNP type transistor with their bases coupled together by a capacitor. The second stage includes one PNP type transistor and one NPN type transistor with their bases coupled together by a capacitor. The emitters of the transistors of the first stage are connected to the emitters of the transistors of the second through of a pair of resistors. The collectors of the second stage are connected to the load through of a pair of diodes, and the collectors of the transistors of the first stage are connected directly to the line.