baber/WOPTO huggingface dataset:
Patent GB-1408166-A (GB)
Title: Vapour engines
IPC: F01K25/08
Filed: 1972-11-30
Abstract: 1408166 Vapour engines I S C CHEMICALS Ltd 13 Nov 1973 [30 Nov 1972] 55250/72 Heading F1Q Substantially all the liquid 2 in an evaporator 1 is evaporated by means of heat supplied through the base of the evaporator. Vapour passes through the duct 6 and tube 8 into a chamber 12 thus causing a diaphragm 10 to move to the left. The evaporation rate will be greater than the rate at which vapour condenses on the surface of the diaphragm 10 and in the upper part of the tube 8. Vapour will continue to condense and collects at the bottom of the tube 8. As the condensation continues the diaphragm 10 moves back to the right. When the level of condensate in the tube 8 rises to the level of the upper bend 15 of a siphon tube 4, the siphon operates and substantially all the condensed liquid flows back to the evaporator 1. The siphon may be replaced by a float or a tipping bucket device. The working fluid may be a halogenated hydrocarbon.
Patent GB-1425150-A (GB)
Title: Therapeutically active phenoxyalkylamines
IPC: C07D213/38
Filed: 1974-12-23
Abstract: 1425150 Phenoxyalkylamines BEIERSDORF AG 23 Dec 1974 [27 Dec 1973] 55446/74 Heading C2C  Compounds of the general formula (R 1 =Cl, OMe, CN; R 2 =H, OH, Me; m=2-4; n=1, 2) and their acid addition salts are prepared by (a) reacting the appropriate vinylpyridine and phenoxyalkylamine or (b) reacting the appropriate formylpyridine and phenoxyalkylamine and reducing the resulting Schiff base, optionally followed by salt formation. The above compounds are antihypertensives, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1489255-A (GB)
Title: Identification of microorganisms
IPC: C12M1/34
Filed: 1974-12-23
Abstract: 1489255 Microbiological test device using labelled substrate BIOSPHERICS Inc 23 Dec 1974 [28 Dec 1973] 55449/74 Heading G1B [Also in Divisions B8 and C6] In a method for the identification of an unknown micro-organism e.g. a bacterium, with the aid of test culture media containing <SP>14</SP>C labelled substrates, the test culture media are contained in the depressions 21 of a disposable thin sheet 20 of plastics material designed for use with a reusable support body 23, see Figs. 10-11. The latter includes an alignment pin 25, Fig. 10, which co-operates with openings 26 and 28 in the tray 20 and its cover 29. The cover includes a stiff plastics backing 30 and a sheet of absorbent material 31 impregnated with lithium or barium hydroxides. The absorbed CO 2  reacts to form the corresponding labelled carbonate. Alternatively, the cover may have a series of depressions 41 for receiving absorbent pads 42, Fig. 14, one corresponding to each culture medium in the tray. During the incubations, the assembled trays and covers may be held down tightly by a weight 35 see Fig. 12. The amount of <SP>14</SP>C labelled carbonate produced from each successful cultivation is then ascertained by passing the cover upturned under geiger counters 55, Fig. 15. In general the data processing and display apparatus 57 receives the count information from the detectors, compares it with standard substrate respirometric profiles obtained in a similar manner using known micro-organisms and produces a display, such as a print-out, identifying the detected material as one previously identified or indicating that no such valid comparison has been made. A block diagram of this apparatus is given in Fig. 16 (not shown). Each cover is identified as to test type by a code plate 85 Fig. 13, which serves to initiate the necessary control functions in the computer. Sample profiles obtained by culturing specified bacteria on <SP>14</SP>C labelled glucose and urea substrates are illustrated in Figs. 5 and 6, respectively (not shown).
Patent GB-1162420-A (GB)
Title: A device for Testing a Gearwheel for Double-Flank Composite Error
IPC: G01B5/20
Filed: 1967-12-07
Abstract: 1,162,420. Gear-wheel testing machines. MAAG GEAR WHEEL & MACHINE CO. Ltd. Dec.7, 1967 [Jan.10, 1967], No.55797/67. Heading G1M. A gear-wheel testing machine, Figs. 1 and 2, comprises guide rods 2, 3 mounting screw operated sliders 4, 5 supporting mandrels 8, 9, and gears 10, 11 which are to be meshed and tested. A spring 44 provides the pressure to mesh the gear teeth and a dial indicator 25 indicates deviations of the gear profiles. Adjustable centres 12-15 are disposed horizontally in the sliders so that other forms of gearing may be tested e. g. worm and wheel. The deviations of the gears may be graphically recorded by a device (43, Figs. 7 and 8, not shown).
Patent GB-1366944-A (GB)
Title: Method and apparatus for testing light-transmitting material
IPC: G01B11/26
Filed: 1971-12-03
Abstract: 1366944 Photo-electric testing apparatus GLAVERBEL 29 Nov 1972 [3 Dec 1971] 56282/71 Heading G1A [Also in Division G2] A method of determining the light-deflecting properties, of an area of transparent material 33 comprises projecting a divergent beam of light 32 through the area and reflecting it back from a reflector 34 as a convergent beam 36 to a detector 39 which incorporates photo-electric cells 43. The material 33 is mounted on a conveyor 35, and undeflected reflected beams 36 are intercepted by an opaque zone 41 on a filter 40. The cells 43 operate a switch 46 to remove unsatisfactory material 33.
Patent GB-1366498-A (GB)
Title: Grinding machines
IPC: B23Q15/00
Filed: 1971-12-03
Abstract: 1366498 Grinding LITTON INDUSTRIES Inc 3 Dec 1971 [16 Dec 1970] 56358/71 Heading B3D A machine 10 for grinding axially spaced coaxial portions, e.g. of a crank-shaft W comprises bearings 16, 17 mounting a grinding spindle 18, spindle bearing supports 41, 41<SP>1</SP> displaceable resiliently transversely of the spindle axis, sensing means 43, 44 for producing two signals indicative of the dimensions of the workpiece at respective axially spaced positions, means (48), Fig. 2 (not shown), for producing a third signal when the two signals differ by more than a predetermined amount, e.g. due to a taper grinding effect caused by non-parallel alignment of the workpiece W and spindle 18, and means 49, 49<SP>1</SP> responsive to the third signal to displace one or other of the bearing supports 41 or 41<SP>1</SP> to restore parallel alignment. The grinding spindle 18 supports a series of wheels 22-26 separated by spacers 27-32 and locked by rings 33, 34, and the workpiece W is supported between a headstock 38 and footstock 39, the sensing means, comprising gauge heads 43, 44, being advanced by hydraulic means 81, 82 to engage the spaced portions of the workpiece W after previous steps in a grinding cycle have ground the workpiece W to approaching the required dimensions. The bearing supports 41, 41<SP>1</SP> mount pressure posts 66, 66<SP>1</SP> engaged by plungers 57, 57<SP>1</SP>, and the signal producing means (48), comprising a differential comparator circuit, acts to operate an hydraulic piston 51 or 51<SP>1</SP> if non-parallel alignment is indicated. A rack 61 or 61<SP>1</SP> and pinion 58 or 58<SP>1</SP> act through a differential screw arrangement to advance the plunger 57 or 57<SP>1</SP>, which is held against rotation, so that the appropriate one of the supports 41, 41<SP>1</SP> is resiliently displaced to restore alignment. On reversing the hydraulic piston 51 or 51<SP>1</SP> to withdraw the plunger 57 or 57<SP>1</SP>, the supports 41, 41<SP>1</SP> resiliently return to a normal position. The parallel relationship may be maintained automatically by a circuit, Figs. 3A and 3B (not shown), or the means 49, 491 may be controlled manually.
Patent GB-1325370-A (GB)
Title: Propulsion nozzle assemblies for aircraft jet propulsion engines
IPC: F02K1/46
Filed: 1970-11-27
Abstract: 1325370 Jet nozzles - silencing GENERAL ELECTRIC CO 27 Nov 1970 [28 Nov 1969] 56475/70 Heading F1J [Also in Division B7] An aircraft jet propulsion engine has a nozzle assembly comprising: a primary convergent nozzle; a secondary divergent nozzle spaced downstream from said primary nozzle, cooling air being introduced through the space between the nozzles into a hot gas stream which in use is discharged from the primary nozzle, said secondary nozzle including a plurality of flaps 36, 34; and means 64 for swinging selected spaced flaps 38 inwardly of the throat of the secondary nozzle to cause mixing of the cooling air and the partially expanded hot gas and thus reduce noise, all of the flaps 36, 38 being pivotable to substantially block the hot gas stream and deflect it through said space to reverse thrust. The flaps 38 are each pivotable to the position of Fig.3 by means of an actuator 64 fixed to the pod 14 of the engine and connected to the flaps by a piston rod 63 via a linkage 62, 50, 46', 44. The flaps are spaced from their pivot pins 42 by arms 68 which, when the flaps 38 are pivoted, allow cooling air which enters blowin doors 65, Fig.1, to mix more readily. There may be three of the flaps 38 on each side of the secondary nozzle to reduce sideband noise, although top and bottom flaps may also be provided. To reverse thrust, the piston rods 60 of actuators rigidly attached to the pod 14 extend to move as actuator ring 52 surrounding the secondary nozzle from the position shown in Fig.3 to that shown in Fig.4, thereby pivoting the flaps from the retracted position to the blocking position, Fig.4. If the selected flaps 38 are in any position other than retracted, they will not swing fully to the blocking position, but can quickly be swung there by means of the actuators 64. Damper doors 69 associated with each selected flap 38 have projecting arms 71 which are received in pockets on adjacent flaps 36, the doors being thereby swung to block the space between the flaps 38 and the pivot pins 42 in the blocking position. In supersonic operation the flaps 36, 38 are retracted flush with fixed panels 40 to form a conical expansion surface. The primary nozzle comprises flaps 30 and the secondary nozzle further comprises flaps 34 pivoted via a link 33 at or near their downstream ends and boattail flaps 35 each pivoted to one flap 34. The boattail flaps are also pivoted to the pod 14. The flaps 34, 35 adjust the unit area of the secondary nozzle as a function of the pressure ratio across the nozzle.
Patent GB-1368784-A (GB)
Title: Foodstuffs for young animals
IPC: A23K1/14
Filed: 1971-12-08
Abstract: 1368784 Animal foodstuffs ASTRA NUTRITION AB 8 Dec 1971 [9 Dec 1970] 57031/71 Heading A2B An animal foodstuff comprises not more than 40% of a substantially fat-free, tasteless and odourless fish protein, not more than 45% of a carbohydrate, which is steam-processed rice, maize, oats, wheat or potatoes, not more than 10% of a fat, the percentages being by weight of the foodstuff, together with a vitamin and a salt, the foodstuff being substantially free from lactose. The protein is preferably obtained from fish meal or another fish protein source by solvent extraction. The foodstuff may be mixed with warm water to form a gruel, and thus fed to young animals.
Patent GB-1436860-A (GB)
Title: 5,8-dihydro-5,8-methanonaphthalene cardiovascular agents
IPC: C07C239/00
Filed: 1973-12-10
Abstract: 1436860 Methanonaphthalenes SYNTEX (USA) Inc 10 Dec 1973 [18 Dec 1972] 57171/73 Heading C2C Compounds of the general Formula I R<SP>1</SP>, R<SP>11</SP> = H, C 1-6  alkyl ; n = 0-2 ; Ph = phenyl optionally bearing one or two substituents selected from C 1-6  alkyl and alkoxy and halogen; Y=H, OH, C 1-6  alkyl or alkoxy, halogen, CN, HCONH, C 2-10  acylamino, OCH 2 CH=CH 2 , C 1-12  acyl or acyloxy, OCH 2 CH(OH)CH 2 NHR, COOH, C 2-7  alkoxycarbonyl, CONR<SP>4</SP>R<SP>5</SP>, OOCNHR<SP>6</SP>, C 1 _ 6  alkylthio, alkylsulphinyl or alkylsulphonyl, SO 2 NR<SP>4</SP>R<SP>5</SP>; R<SP>4,5</SP> = H, C 1-6  alkyl or NR<SP>4</SP>R<SP>5</SP> = 3-7 membered ring optionally containing an O, S or second N atom and optionally substituted; R<SP>6</SP> = H, C 1-6  alkyl, benzyl or C 6-10  aryl, optionally substituted) and their salts are prepared by standard methods, e.g. the following routes (Y<SP>1</SP> = Y; Y<SP>11</SP> = Y, oxiranylmethoxy) (Ac = C 1-12  acyl) optionally followed by salt formation. The preparation of starting materials for the first process and 5,8-dihydro-1-methoxy-5,8- methanonaphthalene and its 4-acetyl and 4-(1- tosylhydrazonoethyl) derivatives, 5,8 - dihydro- 4 - methoxyimino - 1 - oxo - 5,8 - methanonaphthalene, 4 - acetamido - 1 - acetoxy - 5,8- dihydro - 5,8 - methanonaphthalene, 4 - amino- 5,8 - dihydro - 1 - hydroxy - 5,8 - methanonaphthalene and its methoxymethyl ether and 5,8 - dihydro - 4 - fluoro, 4 - methylthio-, 4- methylsulphinyl- and 4-methylsulphonyl-5,8 methanonaphthalene-1-methoxymethyl ether is described. The above compounds I are cardiovascular agents, and may be administered in the form of pharmaceutical preparations containing them in assocation with a carrier.
Patent GB-1162000-A (GB)
Title: Improvements in High Voltage Electrical Converters
IPC: H02M7/12
Filed: 1966-12-23
Abstract: 1,162,000. Rectifying circuits. ALLMANNA SVENSKA ELEKTRISKA A.B. 23 Dec., 1966 [28 Dec., 1965], No. 57635/66. Heading H2F. A converter in which each rectifier comprises a number of thyristors in series is provided with a damping circuit connected across the rectifier chain which is so dimensioned that the ringing occurring, on switching off a thyrister, does not exceed its rated peak inverse voltage. Overvoltage protection means is also provided.
Patent GB-1208108-A (GB)
Title: A method of and apparatus for soldering a semi-conductor wafer to a plate
Inventor: BLAKELEY RONALD EDWARD
IPC: B23K1/19
Filed: 1966-12-23
Abstract: 1,208,108. Soldering. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 Dec., 1967 [23 Dec., 1966], No. 57669/66. Heading B3R. [Also in Division H1] In soldering a semi-conductive wafer 27 to a conductive plate 28 or to a conductive region on an insulating plate and simultaneously soldering a lead 25 to the wafer the plate is positioned on a first member 12 having a bore for receiving the lead and the wafer, so that the plate closes one end of the bore, the wafer is supported in the bore spaced from the plate, solder is provided between the lead and the wafer and the wafer and the plate, the lead is urged into contact with the wafer and the wafer into contact with the plate a non- oxidizing gas is introduced into the bore adjacent the plate and the assembly is heated to fuse the solder arranged between the lead and wafer and wafer and plate. The member 12, a plate, having three equiangularly spaced stepped bores is secured to the upper end of a hollow post 11 and the second member 13, a plate, is slidable on the lower part of the post 11 a spring 14 being arranged between the plates. A conduit 15a leads from a passage 11a in the post to the upper portion of each stepped bore and a conduit 15b leads from the bore to the atmosphere. Guide rods 23 carried by the plate 12 engage bores 24 in the plate 13 and pegs 29 on the rods 23 project from the upper surface of plate 12 to locate the plate 28. The plate 13 carries three hollow spigots 21 and each spigot houses a spring-loaded plunger 22. In operation a lead 25 having an upper sinuous portion is inserted into each bore, a PN wafer 27 is arranged in each bore on the lead with a disc of solder on each side of the wafer and a conductive plate 28 is placed on top of the plate 12. The assembly is raised by moving the plate 13 until the plate 28 engages a fixed heater 31 and further upward movement of plate 13 compresses spring 14 and causes spigots 21 to enter the lower ends of the bores and the plungers 22 to urge the leads upwardly and thus the wafer against the plate 28. Further upward movement of the plate forces the plungers into spigots 21 and the heater 31 to be switched on and the passage 11a to be placed in communication with nitrogen. After a predetermined time the heater is switched off, the gas flow cooling the diode assembly.
Patent GB-1360078-A (GB)
Title: Ambipolar photoreceptor and method
IPC: G03G5/082
Filed: 1971-12-13
Abstract: 1360078 Electro-photographic device XEROX CORP 13 Dec 1971 [18 Dec 1970] 57753/71 Heading G2C An electro-photographic device suitable for  use with either a positive or a negative sensitizing charge comprises a substrate supporting a photo-conductive layer comprising selenium, or an alloy thereof with arsenic, doped with sodium, lithium, potassium, rubidium, caesium or mixtures thereof. The substrate may be a sheet, web or cylinder, and may be brass, steel, aluminium which may be surface oxidized, metallized paper, plastics coated with aluminium or copper iodide, or glass coated with chromium or tin oxide. The photo-conductive layer may be 10 to 100 microns thick and formed by vapour deposition. Concentration of dopant may be 5 to 5000 p. p. m. by weight.
Patent GB-1377504-A (GB)
Title: Production of silane compounds
IPC: C01B33/107
Filed: 1971-12-16
Abstract: 1377504 Disproportionating chlorosilanes UNION CARBIDE CORP 16 Dec 1971 [17 Dec 1970 14 June 1971] 58472/71 Heading C1A Chlorosilanes are disproportionated by contacting them with an ion exchange resin containing tertiary amino, or quaternary ammonium groups. The temperature used may be between 0‹ and 300‹ C., and the pressure used may be super-atmospheric, atmospheric, or subatmospheric. The resin used may be a macroreticular resin, i.e. a resin possessing a non- collapsed non-gel pore structure of increased porosity. The resin preferably contains diethylamino groups bonded therein. The chlorosilanes used may be trichlorosilane, dichlorosilane, and monochlorosilane. The resin may be used as a fixed bed and the mixtures produced by disproportionation which include H 2 SiCl 2 , SiCl 4 , HSiCl 3 , SiH 4 , and ClSiH 3 , may be separated, the appropriate reagent recycled back to the ion-exchange material for further processing and the remainder separated, e.g. by distillation. The process may be performed in a continuous manner.
Patent GB-1339429-A (GB)
Title: Polyvinyl chloride conduits and utensils
IPC: C08K3/00
Filed: 1970-12-16
Abstract: 1339429 Low lead-release PVC compositions MITSUBISHI JUSHI KK 16 Dec 1970 [18 Dec 1969] 59756/70 'Heading C3P [Also in Division F2] Lead-stabilized compositions based on vinyl chloride polymers and copolymers contain 0À02 to 10 wt. per cent (based on the polymer) of a chemical compound (such as a phosphate, phosphite, carbonate, bicarbonate, bisulphate, chromate, or sulphide of Na, K, Ca, Al or Mg) which, in an aqueous medium, will undergo a double decomposition reaction with lead chloride to form a substantially water-insoluble lead salt. The polymer may be a vinyl chloride homopolymer or copolymer (e.g. with vinyl acetate), or after-chlorinated PVC, or a blend of one of the foregoing with methyl methacrylate-butadienestyrene copolymer, acrylonitrile-butadiene-styrene copolymer, chlorinated polyethylene, ethylene-vinyl acetate copolymer or ethylene-vinyl acetate-vinyl chloride copolymer. Conduits and utensils made from the above compositions have little tendency to release lead into water.
Patent GB-1197679-A (GB)
Title: Process for the Purification of Protease.
Inventor: SUGIURA MAMORU
IPC: C12N9/62
Filed: 1968-12-17
Abstract: 1,197,679 Purifying protease AMANO SEIYAKU K, K. 17 Dec., 1968 No. 59846/68 Heading C3H. A crude alkaline protease obtainable by cultivating Aspergillus sp. is purified by contacting a solution thereof with an anion exchange resin in the acetate state. The organism producing the enzyme may be Aspergillus melleus, A. oxyzae or A. sojae. The enzyme may be dissolved in water and re-precipitated with alcohol or acetone. Impurities may be precipitated with acrinol.
Patent GB-1368619-A (GB)
Title: Method of manufacturing maleic anhydride
IPC: C07C51/215
Filed: 1971-12-23
Abstract: 1368619 Maleic anhydride MITSUBISHI KASEI KOGYO KK 23 Dec 1971 [30 Dec 1970 (2)] 60010/71 Heading C2C Maleic anhydride is prepared by causing an oxygen-containing gas and an unsaturated hydrocarbon having four, or more than four, carbon atoms, or a hydrocarbon mixture containing the unsaturated hydrocarbon, to react in the presence of a fluidized bed catalyst in a reactor having a perforated plate at the bottom of the fluidized bed, in which the oxygen-containmg gas is admitted into the lower side of the perforated plate to pass through the perforations thereof for creating effective flow fluxes of the oxygen-containing gas, and in which the unsaturated hydrocarbon, or the hydrocarbon mixture containing the unsaturated hydrocarbon, is admitted into the effective flow fluxes. The reaction may be effected at a temperature of 300-600‹ C. using a vanadium-phosphorusoxygen type catalyst. The quantity of the unsaturated hydrocarbon, or the mixture containing the unsaturated hydrocarbon, preferably amounts to from 2 to 6% by volume based on the total quantity of hydrocarbon and oxygencontaining gas introduced as reactants, and the unsaturated hydrocarbon may be introduced co-currently or counter-currently into the effective flow fluxes of the oxygen-containing gas. Suitable unsaturated hydrocarbon starting materials are butene-1, butene-2, butadiene, pentene, isopentene, cyclopentadiene or benzene, or C 4  fractions produced in the petrochemical industry.
Patent GB-1241268-A (GB)
Title: Telecommunication substation with equalised transmission
IPC: H04M1/76
Filed: 1969-12-18
Abstract: 1,241,268. Substation circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 18 Dec., 1969 [27 Dec., 1968], No. 61704/69. Heading H4R. Gain of a microphone amplifier T 1 , T 2  in a substation circuit is controlled in dependence on the length of the line to which the circuit is connected by an assembly of diodes D 7 , D 8  connected in series with the balancing network R 1 , R 2 , C 1 , of the substation hybrid, and arranged to shunt the emitter base circuit of the transistor T 2 . C 3  provides for the diode assemblies D 7  and D 8 , which are in series for D.C., to be in parallel in respect of A.C. in the microphone amplifier circuit. Compensation of receiver signal level with line length is provided by the assembly of diodes D 5 , D 6 , which are in series with the D.C. flowing to the substation and also form arms of a bridge circuit feeding the receiver REC. Thermistors TH 1  and TH 2  are provided for temperature compensation. The arrangement of the diode D 6  and Do or D 7  and D 8  in opposed parallel arrangement as regards A.C. provides compensation of their non linearity with signal level.