baber/WOPTO huggingface dataset:
Patent GB-1022597-A (GB)
Title: Improvements in stove pipe installations and other conduits for the evacuation of burnt gases
IPC: F16L43/02
Filed: 1963-07-19
Abstract: 1,022,597. Pipe &c. joints. R. R. VOISIN. July 19, 1963 [May 22, 1963], No. 28691/63. Heading F2G. A stove-pipe assembly comprises similar pipes 1 each having at one end an outwardlydirected flange 2 and at the other a portion 3 of reduced diameter compared with the body of the pipe and an outwardly directed flange or projection 4 between said body and said reduced portion, the pipes being assembled so that the flange 2 and projection 4 abut and being held together by a channelled clamping-ring 5. The clamping-rings are split longitudinally and have their ends secured by a screw. Especially for the purpose of assembling a curved pipe between straight pipe runs (Fig. 3, not shown) a clamp may be provided in which the diameters of the lips on either side differ.
Patent GB-535945-A (GB)
Title: Improvements in devices for applying putty to window frames and the like
IPC: E04F21/32
Filed: 1939-10-25
Abstract: 535,945. Putty smoothing tools. CHRISTMAN, J. M. Oct. 25, 1939, Nos. 28699 and 28700. Convention dates, Nov. 4, 1938 and Dec. 2, 1938. [Class 61 (ii)] A putty smoothing device has a flat bottom to contact with the window pane 17 and sloping edge or edges 14 to engage the edge of the window frame and smooth down the putty, which edges may be curved to form a tapering thrust acting to press the putty down. The line of intersection of two of the edges 14 is used to shape the putty junction at the window corners. Fig. 19 shows a modification with a stepped edge 36 for giving the putty a ribbed section. Other forms of the device are formed of sheet metal such as that shown in Fig. 24 having a U-shaped handle 63, smoothing ring 60 and extension 64 for contacting with the pane. Fig. 31 shows another construction with the thrust portions 141 for pressing the putty down inclined to the surfaces 140 for finally smoothing it, whilst in Fig. 32 the thrust portions are formed by depressions 150 tapering in depth. In another modification, Fig. 38, the guiding surface is constituted by a flat part 178 adapted to engage the window frame 175, the smoothing part 180 having thrust portions 181, and in the construction of Fig. 41 the device is guided by one edge 197 engaging the pane and a channel shaped depression 198 engaging the frame. The construction shown in Fig. 43 has two smoothing edges each formed of two portions 205, 206 at an obtuse angle enabling the device to be used with a reciprocating action.
Patent GB-1367033-A (GB)
Title: Removal of hydrogen sulphide contained in a gas of high carbon dioxide content
IPC: C01B32/50
Filed: 1972-06-20
Abstract: 1367033 Gas separation; sulphur INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 20 June 1972 [24 June 1971] 28780/72 Heading C1A Hydrogen sulphide is removed from a gas of high carbon content by contacting the gas stream with an aqueous solution of ammonium sulphite at low temperature to form a solution containing ammonium thiosulphate, drying the so-formed solution and decomposing the ammonium thiosulphate into sulphur, sulphur dioxide, ammonia and water, the sulphur being separated and the sulphur dioxide, ammonia and water being recycled to the first step for regenerating the ammonium sulphite solution. Part of the separated sulphur may be converted into SO2 and passed to the first step to compensate sulphur losses in the ammonium sulphite solution. The contacting with ammonium sulphite may be carried out between 0‹ and 90‹ C., the drying step at 80-170‹ C. and the decomposition of ammonium thiosulphate at 170- 300‹ C. The amount of sulphite used in the first step is preferably such that the H2S : SO2 ratio is from 0À2 : 1 to 1 : 1, and the ammonium sulphite solution may contain neutral and acid ammonium sulphites up to saturation, the molar ratio of NH3 : SO2 being advantageously 1À4 1 to 2 : 1. The process may be carried out at or near atmospheric pressure, e.g. from 0À5 to 3 bars.
Patent GB-922555-A (GB)
Title: Runway light
IPC: B64F1/20
Filed: 1961-08-09
Abstract: 922,555. Runway lights. L. F. A. KNOTTNERUS. Aug. 9, 1961 [Aug. 9, 1960; Feb. 28, 1961], No. 28792/61. Class 75 (4). A runway light is set in a housing lying beneath the runway and having a cover substantially flush with the runway, an aperture being provided in the housing and a source of light within the housing producing a beam which converges to a focus in or near the aperture. The cover 1, Fig. 2, may be slightly inclined to the runway and provided with a window 2 at which the light beam from a source comprising a lamp 9, reflector 8 and lens system 10 is brought to a focus. The runway may be built up around the cover as at 12, leaving a narrow channel 11 for the emergence of the beam. Alternatively, the cover may be flush with the runway, a narrow channel for the emergence of the light being formed in the runway. In a modification, the cover 1 has a small elliptical hole 4, Fig. 5, the light source 9 and reflector 8 being arranged in a closed housing 5 having a small window 2. Adjacent the housing and below the aperture 4 is a sump 6 with a removable container 7 for moisture and dirt. More than one light source may be provided, there being a corresponding number of separate apertures for the beams. Specification 710,608 is referred to.
Patent GB-445475-A (GB)
Title: Improvements in and relating to thermostatic switches particularly suitable for use in electric discharge devices
IPC: H01J61/54
Filed: 1934-10-09
Abstract: 445,475. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and RUFF, H. R., Waverley, Overslade Road, Rugby. Oct. 9, 1934, No. 28914. [Class 38 (v)] [See also Group XL] A thermal switch for use with electric discharge devices having an electrode to be heated, such as those described in Specification 433,789, [Group XL], comprises a pair of supports 2, one of which is connected to the electrode to be heated and the other to the supply main, and a U-shaped bimetallic strip 1, one arm of which is secured to one support while the other arm contacts with the other support to complete the circuit to the electrode, the arrangement being such that when the strip is heated, its free end bends towards its fixed end, the movement of the strip being limited by the supports. The supports may be secured the required distance apart by a glass bead 5, or by a metal clip with means to insulate the supports from each other and from the clip. In a modification the supports are mounted in the glass press of the discharge device.
Patent GB-617802-A (GB)
Title: Improvements in or relating to hermetically sealed glass vessels
IPC: H01J5/24
Filed: 1946-09-27
Abstract: 617,802. Glass. PHILIPS LAMPS, Ltd. Sept. 27, 1946, No. 28916. Convention date, April 14, 1943. Drawings to Specification. [Class 56] Two glass parts, for example in an electric discharge tube or incandescent lamp, are sealed together through an intermediate layer of low melting-point glaze which is less than 100 microns thick. The surfaces of the glass parts are made substantially smooth, any irregularities being preferably less than half the thickness of the glaze layer. In a particular example the glaze layer has a thickness of about 10 microns and comprises 16 per cent B 2 O 3 , 80 per cent PbO and 4 per cent ZnO.
Patent GB-319696-A (GB)
IPC: G01R11/04
Filed: 1929-09-24
Abstract: 319,696. Allgemeine Elektricitõts- Ges. Sept. 26, 1928, [Convention date]. Casings and supports for meters.-Existing electricity meters are modified to serve for a new rate of charges by mounting the necessary additional apparatus on a separate base plate, which may be fixed to the old baseplate by means of an interposed intermediate member. Fig. 2 is a plan of the baseplate and Fig. 1 a vertical section of the lower part of the meter casing on the line A-B. A baseplate having the area and shape a, Fig. 2, is provided for the counting train and a base having the area and shape b for the prepayment mechanism, the full lines showing the original baseplate of the meter and the dot- and-dash lines the enlarged new baseplate. An intermediate member e is mounted on the old baseplate c, Fig. 1, with the insertion of a packing cord d, the new baseplate g being fastened by rivets f or by screws, welding, &c. The baseplate g is large enough to house the required additional devices and is covered by the casing cap h with the interposition of a packing cord j. The member e and the new baseplate g are. formed with holes or slots through which the parts of the meter remaining on the old baseplate may project. Parts of the meter itself may be carried by the new baseplate. The screws &c. that fasten the new baseplate g to the member e may also fix the member e to the old baseplatec.
Patent GB-914568-A (GB)
Title: Improvements in the production of yeasts
Inventor: FILOSA JEAN
IPC: C12N1/26
Filed: 1960-08-22
Abstract: Yeast is produced by maintaining a yeast in an aqueous nutrient medium in the presence of a paraffinic feedstock of petroleum origin and a free oxygen containing gas, e.g. air, under favourable yeast growth conditions, the average molecular weight of the feedstock corresponding to at least 10 carbon atoms per molecule.  The yeast produced is separated as a paste by centrifugation and is dried. Before centrifuging a surface-active agent may be added to assist in the removal of residual hydrocarbons attached to the yeast, as described for example, in Specification 914,567.  The paraffinic feedstock may be a straight run fraction of petroleum, e.g. kerosenes, gas oils, middle fractions, a wax, e.g. a slack wax, obtained by dewaxing a lubricating oil fraction, or a paraffin separated by a molecular sieve frozen, and the nutrient medium, which preferably contains small amounts, e.g. 25 p.p.m. of group B vitamins, yeast extract, anti-foaming agent and other hydrocarbons, e.g. naphthenes, aromatics, is suitably maintained at a pH in the range 3.5 to 4.5 by the stepwise or continuous addition of alkaline materials, e.g. sodium hydroxide, and is kept at a temperature between 25 DEG  and 35 DEG  C. and subjected to vortex aeration and stirred.  The process is applicable to the yeast families Cryptococcaceae and sub-families Cryptococcoidae and Saccharnyceloidae, the genera Torulopsis and Candida of the former sub-family being particularly suitable.  Preferred strains are Candida Lipolytica and Candida Tropicalis.  The adaptation of the former strain to assimulate carbon from the feedstocks is described.
Patent GB-279907-A (GB)
Title: Method of and means for controlling the intensity of a pencil of light
IPC: G02F1/07
Filed: 1927-10-31
Abstract: 279,907. Siemens & Halske Akt.-Ges. Nov. 1, 1926, [Convention date]. Light valves.-Relates to light-valves for television receivers, optical phonographic recorders, and for like purposes, of the kind in which a transparent body located between a polarizer and crossed analyzers, is stressed in accordance with the signals, and consists in applying the stress mechanically without recourse to the piezo-electric effect. The relatively movable parts between which the transparent body is compressed may both be movable or one mav be fixed. In the arrangement shown in Fig. 1 the signal currents are applied to a coil s so as to impart movement to an armature a causing this to compress a glass or other transparent body g. In a modification (Fig. 2, not shown) the transparent body g is directly compressed between the poles p of the electromagnet. The natural frequency of mechanical vibration of the poles may be equal to the carrier frequency. In the modification shown in Fig. 3 the signal currents are applied to a winding on a reed z situated in the airgap of a permanent magnet or electromagnet m. The magnetic circuit of the reed is completed through a yoke b and the movements of the reed compress the transparent body g with leverage. The normal compression is adjusted by means of a set screw e. The compression of the body can also be effected electrostatically or pneumatically.
Patent GB-1142544-A (GB)
Title: Single sonic conductor mechanical wave depth gauge for the measurement of liquid levels
IPC: G01F23/296
Filed: 1967-06-23
Abstract: 1,142,544. Ultrasonic liquid-level gauge; ultrasonic coupling. MARINE MOISTURE CONTROL CO. Inc. 23 June, 1967 [22 Aug., 1966], No. 29035/67. Headings H4D and H4J. In a liquid level gauge the echo time of an acoustic pulse transmitted along wire 7 by transducer 6 and reflected at an impedance discontinuity provided by float 21 is determined on oscilloscope 14. For gauging the level of an inflammable liquid in a tank (Fig. 4), the transducer is mounted in an explosion-proof chamber 37 fixed to the tank and is coupled to the wire by a tapered acoustic waveguide 6<SP>1</SP> effectively acoustically isolated from the chamber. An acoustic delay line 34, formed by wrapping the wire round a drum surfaced with plastics foam, and a time gate circuit 9 are used to eliminate the disturbing effects of echoes arising from acoustic impedance mis-matches in the coupling between the transducer and the wire.
Patent GB-445558-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H03F1/36
Filed: 1934-10-10
Abstract: 445,558. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and KEALL, O. E., 32, Rainsford Avenue, Chelmsford. Oct. 10, 1934, No. 29048. [Class 40 (v)] The output of a thermionic oscillator having non-rectilinear characteristics is freed from harmonics by a back-coupling circuit resonant at the fundamental working frequency whereby the latter frequency is undiminished while harmonic frequencies are reduced. In the Figure the common portion of the grid and anode circuits of a triode oscillator 1a comprises a series resonant circuit 8, 9, tuned to the fundamental frequency and shunted by a resistance 7, from which a grid biassing connection is taken to the control grid. At the fundamental frequency the impedance of 8, 9 is very low and there is substantially no reverse feed-back, while at harmonic frequencies, the impedance of 8, 9 is high compared with resistance 7 and degeneration occurs. The positive back-coupling circuits 3a, 11a are tuned to the fundamental frequency.
Patent GB-191520-A (GB)
Title: Improvements in or relating to horns or sirens
IPC: G10K9/10
Filed: 1921-11-01
Abstract: 191,520. Cowey, L. E., and Payne, L. T. Nov. 1, 1921. Diaphragm horns.-A mechanical horn of the rotary type has a casing A of flattened bell-like shape, with a diaphragm G having a V-shaped stud J engaged by the toothed striker D on a spindle E eccentrically mounted in a sleeve I to permit adjustment, a spring-controlled plunger e<3> being inserted between the end of the spindle and the casing. To the upper end of the spindle is attached an L-shaped handle F, with a knob G held in place by a spring-plunger g and a counterweight H. A clamping device comprises two curved limbs L, Fig. 3, engaging in holes K in the casing A and embracing the bar M on which the horn is to be mounted. A modified clamping device comprises a curved metal stamping N,. Fig. 5, having arcuate slots by which it is bolted to the casing and holes n', n<3> for mounting of the horn.
Patent GB-736349-A (GB)
Title: Polyhydronaphthalene compounds
IPC: C07C45/29
Filed: 1952-03-07
Abstract: The invention comprises 5-methyl-6-alkoxy-1,4,4a,5,8,8a - hexahydronaphthalene - 1,4-diones and a process for the preparation thereof by reacting a 3-alkoxy-1,3-pentadiene and benzoquinone in accordance with the Diels-Alder condensation procedure.  The alkoxy substituent in the 6-position may contain up to 5 carbon atoms, e.g. it may be a methoxy, ethoxy or propoxy radical.  In the example, 5 - methyl - 6 - ethoxy - 1,4,4a,5,8,8a - hexahydronaphthalene-1,4-dione is prepared.  1 - Alkoxy - 3 - hydroxy - pentane is prepared by a Grignard reaction with b -alkoxypropionaldehyde and ethyl magnesium bromide.  In the example, 1-ethoxy-3-hydroxy-pentane is prepared.  1 - Alkoxy - 3 - keto - pentane is prepared by oxodizing 1-alkoxy-3-hydroxy-pentane with chromic acid.  In the example, 1-ethoxy-3-hydroxy-pentane is prepared.  1,3,3 - Trialkoxy - pentane is prepared by treating 1-alkoxy-3-keto-pentane with an alkyl orthoformate in alcohol solution containing a trace of hydrogen chloride.  In the example, 1,3,3-triethoxy-pentane is prepared.  3 - Alkoxy - 1,3 - pentadiene is prepared by reacting 1,3,3-trialkoxy-pentane with hot potassium hydrogen sulphate.  In the example, 3-ethoxy-1,3-pentadiene is prepared.
Patent GB-219561-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04M19/02
Filed: 1923-11-19
Abstract: 219,561. Coventry Automatic Telephones, Ltd., and Collyer, J. E. Nov. 19, 1923. Addition to 219,453. Automatic exchange systems; selectors.-In the parent Specification, selector stepping magnets for the hunting movement have an arrangement of interrupter springs whereby at the beginning of the movement of the armature a local circuit is completed for the stepping magnet which releases itself at the end of the stroke. Three springs are provided, one being connected to the magnet winding and normally in contact with a second which is connected to the test wiper. The third is connected to a local ground and makes contact with the second as soon as the armature moves. According to the present invention the springs are differently arranged. As shown, the second spring is replaced by two springs 3, 4 connected together. The springs may be worked by two studs instead of one. A resistance is inserted in the initial energizing circuit to cut down considerably the current over the test wiper.
Patent GB-670822-A (GB)
Title: Improvements in or relating to high tension electric fuseheads for blasting and like operations
Filed: 1949-11-15
Abstract: 670,822. Electric blasting fuzes. RUBENSTEIN, L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 15, 1950. [Nov. 15, 1949] No. 29229/49. Class 9 (i). A high tension electric fuze for blasting operations has a matchhead composition between the polepieces comprising 45 per cent to 50 per cent lead dioxide, not less than 17 per cent zirconium powder, and 15 per cent to 35 per cent aluminium powder, all parts being by weight. These ingredients are bound together by an adhesive, e.g. nitrocellulose, and coated with a flashing composition, e.g. a potassium chlorate-charcoal composition and with waterproofing compositions. In an example 35 parts of paint-fine aluminium powder are mixed with 45 parts of lead dioxide. The mixture is moistened with 3 per cent industrial nitrocellulose solution in a mixture of amyl acetate and amyl alcohol and 20 parts of zirconium powder are then incorporated. Fuzehead blanks comprising two metal pole pieces separated by pressboard insulation are dipped in the composition. The coating is dried and the process repeated. The primed fuzeheads are then coated with a composition comprising 1 part charcoal to 5 parts potassium chlorate in a 7 per cent solution of the nitrocellulose. After drying coatings of 10 per cent collodion and a 15 per cent solution of nitrocellulose are applied. Two further examples are given.
Patent GB-1356960-A (GB)
Title: Process and apparatus for the continuous wet treatment of textiles
IPC: D06B3/20
Filed: 1971-06-22
Abstract: 1356960 Sieve drum textile treating apparatus VEPA AG 22 June 1971 29244/71 Heading D1L In a textile treating process a web of material 8, is fed as a layer of given thickness to a liquid treatment bath 1, the layer is caused to increase in thickness as the material is passed round the periphery of a sieve drum 2 located in the bath 1, and treating liquid is sucked through the material and the surface of the drum 2 by a pump located inside the drum and is then recirculated to the bath 1 via conduits 11, 12 and 13 and manifold 17, the spent carrier liquid being continuously replenished with treating agent 15 before it re-enters the bath 1. As illustrated the material 8 is preferably passed round the sieve drum in piled or tightly folded condition between a wire mesh transport belt 3 driven by rollers 4-7, the distance x between the belt and drum being chosen to produce an optimum thickness of material. In Fig. 2 (not shown), a loose flock to be treated is packed 'between the transport belt and the drum and the apparatus also includes a hopper feeder for the flock upstream, and a washing installation downstream, of the treatment bath.
Patent GB-838588-A (GB)
Title: Process for preparing expanded cellular materials
IPC: C08J9/06
Filed: 1958-09-12
Abstract: A plastisol composition is foamed by heating with a chemical blowing agent in a thin film to the threshold of decomposition of the blowing agent, discharging the heated plastisol into a mould wherein foaming occurs and thereafter heating the foamed plastisol to flux the resin with the plasticizer.  The Specification contains seven detailed examples of P.V.C. plastisol compositions using one or more plasticizers selected from (1) an epoxy polyester; (2) di-(2-ethylhexyl)-hexahydrophthalate; (3) diisooctyl phthalate; (4) diisooctyl adipate; (5) isobutylacetylricinoleate; (6) chlorinated paraffin; (7) calcium sulphonate complex of an oil-soluble, alkylaryl petroleum sulphonate; (8) didecylphthalate; (10) butyldecylphthalate; (11) isooctyl palmitate; (12) dioctylphthalate; (13) dioctyl sebacate; (14) di-(2-ethylhexyl)-azelate; (15) octyldiphenylphosphite. Stabilizers used are (1) a fatty acid soap mixture; (2) a barium-cadmium chelating epoxy system; (3) basic lead carbonate; (4) dibasic lead phosphite; (5) liquid barium-cadmium stabilizer; (6) a non-metallic complex organic stabilizer.  Other additives used are calcium oxide, titanium dioxide, a dry fatty alcohol sodium sulphate, and boric acid and urea (activators). Various blowing agents are specified.ALSO:Cellular resins are obtained by heating a fluid plastisol, of the resin, plasticizer and a blowing agent, in the form of a thin film to a temperature in the threshold temperature range of substantial thermal decomposition of the blowing agent, immediately discharging the plastisol into a mould wherein the agent decomposes to release a gas and foam the plastisol, and heating the foam further to flux the resin with the plasticizer. Specified are resins:-polyvinyl chloride; blowing agents:-the N,N1 dinitroso - N,N1 dimethyl amides of terephthalic, adipic, succinic, sebacic, and 4, 41 di-benzoic acids, ethylene bis (N-nitrosobenzamide), p-(t-butyl) benzazide, p carbomethoxybenzazide, 2, 21 azo bis (isobutyronitrile) and acid activated dinitrosopentamethylene tetramine; plasticizers:-didecyl phthalate, dioctyl sebacate and adipate, di-2-ethyl hexyl and butyl decyl phthalate, iso octyl palmitate and triethylene glycol di perlargonate.  In addition stabilizers, pigments, dyes and lubricants may be present.  Specification 768,896 is referred to.
Patent GB-247918-A (GB)
Title: Improvements in composite glass and ferro-concrete coverings or structures for ceilings, floors, walls and the like
IPC: E04B5/46
Filed: 1925-11-20
Abstract: 247,918. Liese, P. Feb. 17, 1925, [Convention date]. Pavement lights and like glazed gratings; glazing. - The joint between the glass and concrete in composite glass and reinforced concrete structures is covered by a layer 4 of asphalt or the like, which may be keyed by suitable recesses in the glass. The reinforcement 8 is positioned by spacing slabs 9 of artificial stone, iron, &c. The reinforcement may be a grid of expanded metal apertured to the shape of the glass blocks and positioned over metal &c. supports suitably recessed to engage the feet of the blocks. Rods for reinforcement may be carried on short tubes secured to a baseplate and widened at the top or by metal straps embracing the rods and resting on the plate.