baber/WOPTO huggingface dataset:
Patent GB-941992-A (GB)
Title: Improvements in or relating to thiaxanthene derivatives
IPC: A61K31/00
Filed: 1960-12-19
Abstract: The invention comprises thiaxanthene derivatives of the general formula (I): <FORM:0941992/C2/1> (wherein R1 and R2 each represent an alkyl group containing from 1 to 6 carbon atoms, and n is 1 or 2) and their acid addition salts, pharmaceutical compositions containing them, and their preparation by reacting a 2 - alkylmercapto -thiaxanthone -(9) with a 2-(11-alkylpyrrolidyl-21)-ethyl magnesium halide or 2-(11-alkylpiperidyl-21)-ethyl magnesium halide, hydrolising the product, and treating the resulting thiaxanthenol derivative: <FORM:0941992/C2/2> with a dehydrating agent capable of removing the elements of water from it, optionally followed by salt formation.  The compounds (I) exhibit geometrical and optical isomerism, and the invention includes the separation of the isomers. 2- Methylmercaptothiaxanthone-(9) is prepared by condensing thiosalicylic acid with pbromothioanisole in the presence of copper and potassium carbonate, converting the reaction product to the acid chloride by means of thionyl chloride and cyclising with aluminium chloride in nitrobenzene. 2-Ethylmercaptothiaxanthone-(9) is prepared similarly.  The compounds of the invention potentiate narcosis and/or have an adrenolytic and/or sedative effect; 2-methylmercapto-9-[21-(N-methylpiperidyl-211) - ethylidene-11]-thiaxanthene has a hypotensive effect.
Patent GB-1067117-A (GB)
Title: Improvements in or relating to tools for crimping a member within a sleeve
Inventor: CHANDLER RICHARD DAVID JAMES
IPC: H01R43/042
Filed: 1965-10-15
Abstract: 1,067,117. Crimping pliers. BELLING & LEE Ltd. Oct. 15, 1965, No. 43719/65. Heading B4W. A tool for crimping a bared conductor 22 within a metal sleeve 24 comprises a plate 13 having an aperture 14 to receive the sleeve with the member 22 within it and a pair of arms pivoted to the plate at 11, 12 so that on rotation of the arms towards a part of the sleeve between the arms the sleeve becomes sandwiched between the flat narrow edges and on squeezing the two arms together the walls of the sleeve become crimped about the member 24. A slidably Adjustable distance piece (15), Fig. 2 (not shown), is secured to the arm (10) by an elastic band (20), the depth of crimp being controlled by the position of the distance piece on the arm.
Patent GB-1137613-A (GB)
Title: Extruded article of magnesium-base alloy
IPC: C22F1/06
Filed: 1967-09-26
Abstract: 1,137,613. Working at specified temperatures. DOW CHEMICAL CO. 26 Sept., 1967 [29 Sept., 1966], No. 43759/67. Heading B3V. [Also in Division C7] An extruded article is made from a magnesium base alloy comprising: with the balance, apart from impurities, being magnesium and with a ratio of Zn/Si of at least 1À667. In examples the alloy is scalped, preheated to 495 C., extruded from a preheated ram extrusion press at 480 C. and at a speed of about 100 feet./min., and extrusion speeds of 50-100 feet./min. are said to be possible.
Patent GB-1401119-A (GB)
Title: Apparatus for supervising an electric circuit
IPC: H03K17/60
Filed: 1973-09-19
Abstract: 1401119 Electric circuit fault indicator R G VISSER J W VISSER and F VERLINDEN 19 Sept 1973 44013/73 Heading H2K On switching on a D.C. supply at S, a bistable device F is put in a set condition and immediately reset if a current flows in any selected primary W1, W2 or W3 of a transformer which has a secondary W4, W5 earthed at a centre tap and connected at its ends through respective diodes D1, D2 across smoothing capacitors C3, C4 to the bi-stable device F. If no current flows the device F remains in its set condition in which it controls a transistor T to light a lamp L. A subsequent interruption of the normal current produces a reverse pulse in the transformer which restores the device F to the set condition to light the lamp L.
Patent GB-1099278-A (GB)
Title: Safety mat system
Inventor: BLACK STEWART CARSTAIRS
IPC: F16P3/12
Filed: 1965-10-19
Abstract: 1,099,278. Retractive switches. KISMET Ltd. Oct. 12, 1966 [Oct. 19, 1965], No. 44167/65. Heading H2B. [Also in Division F2] A safety mat primarily for use with vehicle lifting devices for the purpose of preventing lowering of a vehicle lift when a person or equipment is standing on the mat under the lift, comprises mat sections 1, each of which comprises upper and lower conducting plates 4, 2 separated by insulating members 3 and end terminals 6. A resilient top covering 5 is provided.
Patent GB-946982-A (GB)
Title: Twin handles for suitcases, bags or the like
IPC: A45C13/26
Filed: 1961-12-11
Abstract: 946,982. Suitcase handles. H. ERHARD. Dec. 11, 1961 [Dec. 12, 1960], No. 44270/61. Heading A4G. A suitcase handle comprises two handles 1 and 2 each formed with longitudinal teeth 11 &c. which can be locked together by meshing the teeth 11. Relative longitudinal movement of the interlocked handles is prevented by providing stops 21 at each end of the handles. One handle may also be formed intermediately of its ends with a transverse groove and the other handle with a transverse rib engageable on the groove when the handles are locked together.
Patent GB-1211484-A (GB)
Title: Improvements in or relating to engine starter devices utilising gas turbines
Inventor: BINSLEY ROBERT LELAND
IPC: F02C7/277
Filed: 1968-09-18
Abstract: 1,211,484. Gas turbine plant; oscillating column combustion apparatus. NORTH AMERICAN ROCKWELL CORP. Sept.18, 1968 [Sept.18, 1967], No.44420/68. Headings F1G and F1L. A gas turbine type engine starter comprises an oscillating column combustion chamber which discharges combustion gases on to a turbine, the arrangement being such that after each combustion phase, a backflow of ambient air is induced through the turbine into the combustion chamber, there being a guide device disposed adjacent the outlet side of the turbine for improving the flow of backflow air which thus improves precompression of air in the combustion chamber. The assembly shown comprises a combustion chamber 30 which has an inlet 20 comprising a series of flap valves, a fuel inlet 24 and spark plug 32. Combustion gases are deflected by the domed end wall 34 into four discharge tubes 40, 42, 44, 46 which extend helically around the combustion chamber and terminate adjacent the blades 16 of a turbine rotor disc 14. A guide assembly 50 is disposed adjacent the turbine to facilitate the back flow of air through the turbine into the combustion chamber, the assembly comprising an outer annular wall 52 of convex form in the axial direction and an inner annular wall also of convex form in the axial direction, the two walls being inter-connected by struts 68 and the wall 52 being secured to a plate 55 in which the discharge ends of the tubes 40-46 are located. The walls 52, 62 diverge in the direction of exhaust gas flow therethrough but the assembly is solely for the purpose of facilitating back flow of air and not for exhaust gas discharge. In a further arrangement an outer wall such as 52 only is provided.
Patent GB-1366744-A (GB)
Title: Decolourising of cumene hydroperoxide
IPC: C07C407/00
Filed: 1972-09-26
Abstract: 1366744 Decolorizing of cumene hydroperoxide RHONE-POULENC SA 26 Sept 1972 [27 Sept 1971] 44478/72 Heading C2C A process for decolorizing a concentrated solution of cumene hydroperoxide in cumene containing 60 to 75% by weight of hydroperoxide, which is obtained by washing with water or with an aqueous alkaline solution the oxidized product resulting from the oxidation of cumene with molecular oxygen followed by concentrating the hydroperoxide containing solution by distilling off part of the cumene, wherein the said concentrated solution of cumene hydroperoxide is treated at a temperature of 50‹ to 110‹ C. with an alkaline agent which is ammonia or a hydroxide carbonate or bicarbonate of an alkali metal, in an amount of 0À001 to 2% by weight relative to the weight of the concentrated hydroperoxide solution.
Patent GB-1308436-A (GB)
Title: Supercharged internal combustion engine
IPC: F02B37/00
Filed: 1971-09-24
Abstract: 1308436 Engine exhaust extraction pump GOTAVERKEN AB 24 Sept 1971 [17 Dec 1970] 44658/71 Heading F1B Exhaust gas turbo-charged IC engine has an independently-driven extractor pump connected to the outlet of the turbine. Three cylinders 10 of the engine, which are supplied with air from a manifold 11, have their exhaust conducted to a turbine 12, which drives a compressor 13. The exhaust from the turbine is fed to a receiver 16, which may also receive exhaust gases from other cylinders of the engine, and then enters a second turbine 15 which drives a compressor 14. The output from compressor 14 passes through a cooler 17, and the output from compressor 13 passes through a cooler 18. An extractor pump 19, driven by an electric motor 20 is connected to the outlet of the second turbine through a three-way valve 22. Pump 19 is normally used only during starting and low-load conditions, so that it is not subjected to the hot exhaust gases at full load operation.
Patent GB-1070548-A (GB)
Title: Means for sensing shock waves
Inventor: LAWRENCE OWEN NAPIER
IPC: F02C7/057
Filed: 1964-11-03
Abstract: 1,070,548. Air intakes for gas turbine engines. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 6, 1966 [Nov.3, 1964], No. 44865/64. Heading F1G. [Also in Divisions G1 and G3] The position of a shock wave 10 occurring immediately in front of the air intake of a gas turbine engine 11 in an aircraft is detected by the change in resistance of a wire 18 mounted at an angle across the air intake, the change being due to the temperature on the upstream side of the shock wave being lower than that downstream of it. The wire forms one arm of a D. C. bridge, the output of which is amplified and used to control the position of shutters 13 so as to reduce the area of the intake as the airspeed rises, and so prevent the shock wave from entering the air intake. The wire 18 may be replaced by a foil or ceramic coated rod.
Patent GB-1364009-A (GB)
Title: Continuous wave ignition system
IPC: F02P7/067
Filed: 1972-09-29
Abstract: 1364009 Ignition systems TEXACO DEVELOPMENT CORP 29 Sept 1972 [29 Oct 1971] 45034/72 Heading F1B A high frequency continuous wave ignition system for an internal-combustion engine comprises a central winding 23 through which current flow is controlled to start and stop high frequency continuous wave energy, breaker pointless means controlled by the engine shaft to provide a signal pulse having a duration proportional to a predetermined angle of rotation of the engine shaft for each cylinder of the engine and electronic means 42 for cutting off the current flow through the control winding 23 during each signal pulse. With the engine running and between sparking intervals the oscillator 16 is cut off because of the low impedance path across the  control winding 23 that includes a diode 86 and  a power transistor 76. When distributer rotor projections reach alignment with stator projections (not shown) a voltage signal is generated in the winding 54. It is clipped and applied to an input of a NAND gate 61. Coincidence of signals causes the output of the NAND gate to go to zero and this results in conduction of the transistor 76 being cut-off. That in turn cuts off the D. C. current in the winding 23 which starts the oscillator 16. The sparking interval with the oscillator oscillating continues until the trailing edges of the rotor projections pass out of alignment with the stator projections.  Specifications 1308750 and 11323949 are referred to.
Patent GB-981312-A (GB)
Title: Mounting display containers on cards
Inventor: LARGE JOHN
IPC: B65D75/36
Filed: 1962-11-29
Abstract: 981,312. Displaying. NEWEY BROS. Ltd. Nov. 29, 1963 [Nov. 29, 1962], No. 45155/62. Heading A4T. [Also in Division B8] A display container 11 of transparent plastic material has a surrounding outward, co-planar peripheral flange 12 at its rear and is mounted on a card 13 by having the major part of opposite flanges passing behind the card through spaced slits 14, the part in front being secured by a staple 16. plastics material has a surrounding out- The distance apart of the slits increases at 15 to facilitate entry of the flanges.
Patent GB-1401336-A (GB)
Title: Expander circuit for a compression and expansion system
IPC: H04B1/64
Filed: 1972-09-29
Abstract: 1401336 Expanders NIPPON VICTOR KK 29 Sept 1972 [5 Oct 1971 18 April 1972] 45161/72 Heading H4R A single loop expander circuit has a variable gain control, controlled by signals derived from filtered out medium and high frequency range signals, to attenuate the high frequency range more than the medium frequency range. The expander circuit is used in conjunction with a compressor circuit which compresses medium and high range components in separate loops. A low level input signal applied to terminal 30 (Fig. 6) is amplified by transistor Q1 and attenuated by circuit C 3 , C 4 , R 5 , R 6  so that an output signal at terminal 31 is attenuated 3dB more in the high frequency range than in the medium frequency range. A high level input signal produces an output signal at the output of transistor Q 2  and this output is applied to capacitor C 5  which operates as a low cut-off filter. Medium and high frequency components are rectified by diodes D 2 , D 3  and smoothed by capacitor C 7  and resistors R 10 , R 11  and the derived signal is applied to the base of a transistor Q 3  having a bias circuit R 9 , D 1 , C 6 . The collector-emitter resistance of transistor Q 3  is high when the input signal is low, and is low when the input signal level is high and a large positive voltage is applied to its base. Therefore the current feedback of transistor Q 1  decreases through capacitor C 9  and resistor R 13  when the input signal is low, causing a rise in the gain in the high frequency band. With a low input signal no control signal is derived from the emitter of transistor Q 1  and thus the output signal at terminal 31 is attenuated in the medium frequency range and attenuated even further in the high frequency range. With a high input signal a control signal is derived from the emitter of transistor Q 1  and the resistance value of transistor Q 2  is caused to vary the control signal through transistor Q 2  and the rectifier circuit, resulting in decrease in the current feedback. As a consequence the output at terminal 31 is attenuated in both the medium and high frequency ranges, the high frequency range being attenuated more than the medium frequency range. In an alternative circuit (Fig. 7, not shown) a F.E.T. (Q 4 ) replace the transistor Q 3  giving a circuit with less distortion.
Patent GB-1197603-A (GB)
Title: Asbestos
IPC: C08L67/00
Filed: 1967-10-05
Abstract: 1,197,603 Unsaturated polyester compositions. UNION CARBIDE CORP. 5 Oct., 1967 [24 Oct., 1966], No. 45422/67. Heading C3P. [Also in Division C1] An asbestos base material comprising chrysotile asbestos having a precipitation deposited siliceous outer layer which layer is not more than 25% by weight of the chrysotile asbestos is used as a filler for polyester rseins. In examples asbestos base material is mixed with " Para Plex P45 " (Registered Trade Mark) and styrene monomer 50 ml. in 400 ml. of mixture having a viscosity of 500 centipoise. The asbestos base material was also used with a commercially available silica with the same polyester mixture and tables showing the improved viscosities are given for various additions of the filler.
Patent GB-1403895-A (GB)
Title: Process for the preparation of natural resin products
IPC: C08L61/00
Filed: 1972-10-03
Abstract: 1403895 Modified natural resins HOECHST AG 3 Oct 1972 [8 Oct 1971 29 March 1972] 45601/72 Heading C3R Modified natural resins are obtained by reacting (a) a natural resin with (b) an ethylenically unsaturated monomer free from carboxylic and anhydride groups and (c) a phenol-aldehyde resin or its components. The reaction product may be at least partially esterified with a polyhydric alcohol. Also the reaction may include saturated or unsaturated carboxylic acids and synthetic resins, and metal compounds be included to form metal salts. The materials may be reacted in random sequence. The products may be used as printing ink binders and as adhesives. In examples the natural resins are colophony and tall oil resin; the unsaturated monomers are styrene, indene, vinyl toluene, dicyclopentadiene and α- and #-methyl styrene; phenol resins are a propoxylated phenol-iso-butyraldehyde-novolac, a ptert.-butylphenol-formaldehyde resin and phenol-formaldehyde resols; some of the phenol resins are prepared in situ from phenol, pcumyl-phenol, p-phenyl-phenol and octylphenol, and formaldehyde and paraformaldehyde; polyhydric alcohols are glycerin, sorbitol and pentaerythritol; other reactants are maleic anhydride, hydrocarbon resins, coumarone-indene resins and zinc oxide; some of the products are formed into compositions with toluene and pigments for use as printing inks, with polychloroprene rubber, magnesium oxide, zinc oxide and solvents for use as adhesives and with linseed oil and cobalt, lead and manganese naphthenates for use as a lacquer.
Patent GB-996862-A (GB)
Title: Canned air circuit-control system
IPC: F15B11/20
Filed: 1962-12-04
Abstract: 996,862. Machine tool details. GALLAND - HENNING MFG. CO. Dec. 4, 1962 [May 7, 1962], No. 45784/62. Headings B3B, B3C and B3N. An air circuit control system for controlling a sequence of operations, e.g. clamping, drilling, countersinking, tapping, and ejecting, comprises a device H having a number of air lines 105, terminating in points 1- 10, a source of air supply 90, pilot valves 100-104, 107-111, a control valve 92, and a pilot valve actuating piston 96. Lines 120 leading to control valves 112 supplied with air from a source 114, can be connected to any of the points 1-10, to provide the required operational sequence to the machines 117.
Patent GB-1109356-A (GB)
Title: Electro-magnetically operated fluid-flow valves
IPC: F16K31/06
Filed: 1966-10-14
Abstract: 1,109,356. Valves. DANFOSS A/S. 14 Oct., 1966 [4 Nov., 1965], No. 46073/66. Addition to 1,084,460. Heading F2V. An electro-magnetically operated valve has a closure member 10 damped by flow of fluid between the inlet 18 and a chamber 16 formed by a diaphragm 15, the flow taking place through an axial passage 17 and restricted openings 19, a second damping device being provided in the armature 8. A spring 11 surrounded by a fixed partition 21 urges the valve into the open position and is opposed by a spring 24 mounted in the armature. An annular gap between a pin 23 and a bore 22 of the armature provides the further damping device. Alternatively, the pin 23 may be provided with an axial duct.
Patent GB-1031903-A (GB)
Title: Photographic silver halide materials and processes
IPC: C07D263/58
Filed: 1962-12-07
Abstract: 1,031,903. Photographic silver halide materials and processes. E. I. DU PONT DE NEMOURS & CO. Dec. 7, 1962 [Nov. 8, 1962(3)], No.46345/62. Heading G2C. Photographic elements which give positive images on exposure followed by treatment with a silver halide solvent comprise a silver halide emulsion containing a compound which is (i) an alkyl mercaptan in which the alkyl group may be substituted, (ii) a dimercaptan of the formula HS-R<SP>11</SP>-SH where R<SP>11</SP> is hydrocarbon which may be substituted by alkyl, alkoxy, carboxyl, amido or cyano groups or by halogen atoms, (iii) a compound of the formula P-R<SP>111</SP>CONHC 6 H 4 SH where R<SP>111</SP> is a hydrocarbon or an alkoxy or nitro-substituted aryl group, (iv) a substituted thiourea or thioamide or (v) a heterocyclic mercaptan containing a nitrogen atom in the heterocyclic ring, or a salt of any one of the above, the particular compound and the amount used being determined by tests as set out in the Specification. In general the amounts are said to be between 0.125 and 314g.per mole of silver halide. Compounds of class (i) which comply with the tests are alkyl mercaptans having alkyl groups of 3 to 12 carbon atoms, mercapto-undecanoic acid, benzyl mercaptans wherein the benzine ring may be sutstituted by methyl, ethyl or methoxy groups, methyl or ethyl mercapto-acetate, isooctyl thioglycollate iso-octyl-3-mercapto-propionate, mercapto bis (ethyl mercapto-acetate)sulphide and di-t-nonylpolysulphide. Compounds of class (ii) are 2, 3-dimercaptocapto-propanol, toluene 3, 4-dithiol, cyclohexane-1, 1-dithiol, (CN) 2  = C = C(SNa) 2 ,NH 2 .CO.C(CN) = C(SNa) 2 , CN-C(SNa) = C(SNa)-CN, and CN-C(S<SP>-</SP>)-CN. 2(CH 3  ) 4  N+. Compounds of class (iii) are those wherein R<SP>111</SP> is methyl, iso-porpylmethyl, hexyl, octyl, dodecyl, cyclohexyl, naphthyl, or phenyl substituted by a nitro, methoxy or amyloxy group. The thiourea of class iv) may be one in which the nitrogen atoms(s) is or are substituted by one or more of ethyl, butyl, octyl, allyl, benzyl, phenyl, naphthyl or amino, and the thioamide may be thio-acetanetede, thiobenzanilide or thiocarbanilide or its 2, 2<SP>1</SP>-dilthyl derivative. Heterocyclic mercaptans of class (v) are specified wherein the heterocyclic group is thiazole, benzthiazole, naphthothiazole, tetrazole, iminazole, benzimidazole, benzoxazole quinoline, 1; 3; 4-thiadiazole and quinoxaline. In the examples, a film base coated with a silver chlorabiomide emulsion is bathed in an aqueous alcoholic solution of the compound, dried and exposed. Treatment with aqueous sodium thiosulphate followed by bathing in a fogging developer comprising 1 -phenyl-4 -methyl- 3-pyrazolidone, hydroquinone and potassium iodide gives a positive image. In other examples, 0. 4g. of the compound is added per mole of silver halide, and after exposure and treatment with thiosulphate, the emulsion is flashed with white light and the image reduced chemically to silver.
Patent GB-1123624-A (GB)
Title: Venous catheter assembly
IPC: A61M25/01
Filed: 1965-11-02
Abstract: 1,123,624. Surgical administration apparatus. ABBOTT LABORATORIES. 2 Nov., 1965 [18 Nov., 1964], No. 46432/65. Heading A5R. An assembly for venous administration comprises a cannula 12 secured in a hub member 14 and a catheter 17 secured in an adaptor member (16), the catheter being slidable within the cannula and the adaptor being engageable with the hub member, and there being a sheath 22 in two portions each pivotally mounted on the hub member and able to be clamped together to form a protective closure about the cannula. As described, the assembly is provided within a transparent plastic envelope (11) and the portions of the protective sheath 22 are clamped together by a sleeve 23 able to be withdrawn from the sheath on to the hub member 14. The adaptor (16) secured to the catheter may fit into a recess 15 in the hub member and is itself formed with a recess (19) to be joined to other administration equipment. A protective vented cap (21) may be temporarily fitted to the adaptor (16) to enclose the end of the catheter and the cap may contain cotton (28) to absorb blood when the assembly is first secured to the patient. A sleeve 25 may protect the cannula within the sheath 22 and a stiffener (20) secured to the cap (21) may extend within the catheter. In use, the sterile assembly is removed from the envelope (11), the sleeve 23 is withdrawn from the sheath so that the two sheath portions may be pivoted back (Figure 5, not shown), and the cannula is inserted into a vein of the patient (Figure 6, not shown), The catheter is then introduced through the cannula into the vein (Figure 7, not shown) and the cannula is then withdrawn and re-enclosed within the sheath 22 (Figure 8, not shown). The stiffener (20) for the catheter may be of flexible stainless steel and the remainder of the assembly, and optionally the stiffener, are of exemplified plastics materials.