baber/WOPTO huggingface dataset:
Patent GB-1302689-A (GB)
IPC: G01F1/60
Filed: 1970-10-22
Abstract: 1302689 Induction flowmeter BAILEY METER CO 22 Oct 1970 [29 Oct 19691 50327/70 Heading G1N In an induction flowmeter movement and distortion of the exciter magnetic field along the flow axis due to magneto-hydrodynamic effects of the moving fluid e.g. liquid sodium are compensated. Upstream and downstream monitoring coils 21, 23 mounted adjacent the flow tube 10 are vibrated or rotated by linkage 50 so that an A.C. voltage is induced therein proportional to the magnetic flux of the fringes of the exciter field produced by D.C. energized coils 14, 14<SP>1</SP>. Servo controller 54 supplies an error signal to phase controlled rectifier 68 which provides a D.C. output voltage on line 70 to energize compensating electromagnets 16, 18. The ampere turns of 16, 18 disposed in planes parallel to the eddy currents circulating in the moving liquid in conduit 10 due to magneto hydrodynamic effects are such that they cancel the effects of the eddy currents, Fig.4  (not shown). The reference signal may be obtained by means of a heat insulated magneto diode or Hall generator, Fig.5b (not shown) instead of coils 21, 23. Permanent magnets may be used to perform either or both the exciting and compensating functions of the electromagnets, the output of linear rectifier 52 being used as a positioning signal for controlling the compensating permanent magnets. Variable resistor 62 and servocontroller 54 enable the excitation current of coils 14, 14<SP>1</SP> to be adjusted to maintain the fringe field constant at increased flow-rates. The output from electrodes 12, 12<SP>1</SP> is made independent of supply voltage variations by means of servo driven recorder 40 and variable resistor 44 recorder 40 providing a variable reference voltage.
Patent GB-1269920-A (GB)
Title: Poly(arylene sulfide) coatings
IPC: B05D3/02
Filed: 1969-08-14
Abstract: 1,269,920. Polyarylene sulphide coating. PHILLIPS PETROLEUM CO. 14 Aug., 1969 [15 Aug., 1968], No. 50486/71. Divided out of 1,269,696. Heading B2E. A coating containing polyarylene sulphide is applied to iron or titanium or iron or titanium alloy substrates by preheating the substrate to a temperature between 650F. and the softening point of the metal, cooling the substrate and thereafter applying the coating. The metal substrate may be preheated in the presence of a free oxygen-containing gas such as air or by using a gas/oxygen flame. The coating may be applied in the form of a slurry by spraying or doctor blade coating. A fluoro carbon polymer may be incorporated into the coating composition to enhance the non-stick property, preferably a polytetrafluoroethylene. The coating may be subsequently fused and allowed to cure in air at 550-800F.
Patent GB-1153796-A (GB)
Title: A method of Preparing Substituted Benzamides
IPC: A61K31/245
Filed: 1966-11-11
Abstract: 1,153,796. Substituted benzamides. SOC. D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE. 11 Nov., 1966 [27 Dec., 1965], No. 50701/66. Heading C2C. A substituted benzamide of general formula in which A is hydrogen, a C 1 -C 5  alkyl group or a C 2 -C 5  alkenyl group; X is amino, alkylamino, dialkylamino or acylamino radical; Y is a halogen atom; and n is 1, 2 or 3 and in which one of the -CH 2 - groups in A or the carboxamide group may be branched to form the group in which R 3  is a radical containing 1-4 carbon atoms and in which R 1  and R 2  are identical or different C 1 -C 5  alkyl groups or together with the nitrogen atom to which they are attached form a heterocyclic ring, may be prepared by nitrating a p-halogeno-phenol to form the 2-nitro-4-halo-phenol; optionally alkylating or alkenylating thio to form a 2-nitro-4-haloalkoxy or alkenyloxy benzene; reducing the 2- nitro - 4 - halo - phenol or alkoxy or alkenoxy phenol to the corresponding amino compound, acylating the amino compound to form the 2- acetylamino - 4 - halo - phenol, alkoxyphenol or alkenyloxyphenol; nitrating the 2-acetylamino compound to form the corresponding 2-acetylamino - 4 - halo - 5 - nitro compound; hydrolysing this to form the 2-amino compound; diazotizing this compound and treating the product with cuprous cyanide to form the corresponding 2-cyano compound; hydrolysing the cyano compound and heating with an alcohol to get the corresponding alkyl ester; heating this with an asymmetrically disubstituted diamine to get the corresponding N-(tertiary amino alkyl)-benzamide and reducing and optionally alkylating or acylating the nitro group. An example is given of the preparation of N - (diethyl aminoethyl) - 2 - methoxy - 4- amino-5-chlorobenzamide and its conversion to its hydrochloride.
Patent GB-1534133-A (GB)
Title: Process for the purification of microbiologically deparaffinised hydrocarbons
IPC: C10G31/06
Filed: 1975-12-11
Abstract: 1534133 Refining microbiologically treated oils PETROLCHEMISCHES KOMBINAT SCHWEDT 11 Dec 1975 [20 Dec 1974] 50835/75 Heading C5E Oils, such as petroleum oil or gas oil, are microbiologically treated, e.g. with a yeast of the Candida type, and the deparaffinized oil residue is subjected, without any intervening hydrorefining to a heat treatment followed by a distillation, the heat treatment being carried out at 250-370‹ C. for 1 to 10 hours and followed by a distillation in which a heavy sump fraction (which can be in part  reheated and returned to the distillation column) and a light top fraction are obtained. The heat treatment can be preceded by washing with aqueous ammonia. The heat treatment and distillation process reduces the fouling which occurs when the light top fraction is subsequently hydrorefined using a Co-Mo catalyst catalyst.
Patent GB-1365711-A (GB)
Title: Gypsum board and process therefor
IPC: C04B28/14
Filed: 1971-11-04
Abstract: 1365711 Plaster board compositions UNITED STATES GYPSUM CO 4 Nov 1971 51396/71 Heading C1H Calcined gypsum, water and pregenerated foam are mixed with a dispersion of finely ground land plaster and a sugar, e.g. sucrose, cast between paper cover sheets and allowed to set to form a paper covered plaster board. The dispersion has a Blaine fineness of 8,000 cm.<2>/ gm., the sugar forming 5% b.w. of the landplaster. 5-20 lbs. of the dispersion is present in 1 ton of calcined gypsum and acts as a delayed accelerator.
Patent GB-1249947-A (GB)
Title: Improvements relating to stirring and grinding agitating mills
Inventor: ENGELS KASPAR
IPC: B02C17/16
Filed: 1969-10-21
Abstract: 1,249,947. Ball mills. DRAISWERKE G.m.b.H. 21 Oct., 1969, No. 51641/69. Heading B2A. A stirrer-ball-mill having a vertical container 1 charged with balls having a diameter between 0.2 and 6 mm, is fed at the bottom by a pump 7 and comprises a separating arrangement (a sieve) 9 at the discharge end which retains coarse material and balls, and a discharge chamber 10 located in an attachment 11 joined to the grinding container 1 and provided with a tubular member 13 and a material outlet conduit 12 the discharge level of which is adjustable. The mill has a heating/cooling jacket 2. In one embodiment, a flat sieve 9, Fig. 1, is secured between the member 13 and upper edge of the container. The member 13 closely encloses a stirrer-disc drive-shaft 5. Valves 14 regulate the discharge level. In a second embodiment, Fig. 2, the outlet 12 is provided with an adjustable hose 17. The member 13 is connected to the attachment 11 by struts 21 and is more widely spaced from the shaft 5. The sieve 9 is cylindrical. The arrangement in both cases prevents formation of vortices and consequent inclusion of air in the grinding chamber and by reducing speed differentials in the mixture of grinding bodies and material, prevents blocking-up of the sieve.
Patent GB-1373114-A (GB)
Title: Cover for an indicator lamp or illuminable pushbutton
IPC: F21S8/00
Filed: 1971-11-09
Abstract: 1373114 Indicator lamps TELEMECCANICA ELETTRICA OFFICINE MECCANICHE RIUNITE SpA 9 Nov 1971 [10 Nov 1970] 51875/71 Heading F4R [Also in Division H1] A cover for an indicator lamp, or illuminated push-button, comprises a transparent materia 1 cap 3 fixed to a support 2, the support having external threading 7, and a cavity 8 for a lamp, the cavity terminating in a portion 9 of diffusing material located within the cap. The cap may have internal knurling 5, 6 for diffusing the light, and be joined to the support at 10, for example by ultrasonic welding. In a push-button embodiment the top of the cap may be dipped, and a recess 11 in the support may accomodate a gasket or seal.
Patent GB-1144417-A (GB)
Title: Process and apparatus for applying foam-forming mixtures to transported film supports
Inventor: BREER KARL WILHELM
IPC: B05B13/04
Filed: 1967-11-15
Abstract: 1,144,417. Coating apparatus. FARBENFABRIKEN BAYER A.G. 15 Nov., 1967 [16 Nov., 1966], No. 51908/67. Heading B2L. Foam-forming mixture is applied to a film on a moving support by a fan-shaped reciprocating jet directed parallel to the direction of movement of the support. A sheet 2, supported on an endless conveyor 1 and formed . with turned-up edges 3, is coated with a foam-forming mixture projected as a fan-shaped jet 4 directed in the direction of movement of the conveyor 1 by a nozzle 5 arranged on a mixing head 7 adapted to move to and from a rail 6 disposed at right angles to the direction of movement of conveyor 1. 'The arrangement is intended to prevent the mixture from being sprayed on to the inner surfaces of the edges 3. The nozzle may comprise either a slot arranged at right angles to the direction of movement of the mixing head, and at least one pair of apertures directed obliquely to each other in the direction of movement of the mixing head. The latter moves at a speed of 100 to 200 meters per minute. The jet encounters sheet 2 at a pressure of at least 0.1 kg. per square cm.
Patent GB-1525720-A (GB)
Title: Distance measuring apparatus
IPC: G01B17/00
Filed: 1975-12-20
Abstract: 1525720 Ultrasonic measurement of distance CARDIFF UNIVERSITY COLLEGE 20 Dec 1976 [20 Dec 1975] 52259/75 Heading G1G The distance between two parts of pressure-fluid operated apperatus, e.g. the piston 11 and cylinder end 14 of a pressure fluid operated ram, support prop or jack for mine roof supporting, is determined by measuring the time taken for an ultrasonic pulse to pass between the two parts via the ultrasonic wave energy substaining medium, e.g. soluble oil/ water hydraulic fluid mixture, between the two parts. The construction of a transmitting/receiving transducer inserted into the cylinder wall 14 is described with reference to Fig. 3 (not shown). The pulse-echo time may be displayed on an oscilloscope, Fig. 2 (not shown) or may be determined digitally, Fig. 4 (not shown).
Patent GB-1094557-A (GB)
Title: Polymers of unsaturated tertiary amines
IPC: C08F210/00
Filed: 1966-11-23
Abstract: Linear polymers containing monomeric units of the general Formula (A) <FORM:1094557/C3/1> in which X represents a methylenic, arylenic, or cycloarylenic radical, R and R1 which may be the same or different each represent a branched alkyl radical containing 3 or more carbon atoms or a cycloalkyl or alkylaryl radical, and n = 1 to 10 when X is a methylenic radical in homopolymerization, or n = 0 to 10 when X is an arylenic or cycloalkylenic radical or a methylenic radical in copolymerization are made by polymerizing the monomer or monomers in the presence of a Ziegler-Natta catalyst.  Specified compounds are (5) N,N-diisopropylamino (1) pentene, (4) N,N-diisopropylamino (1) butene, (11) N,N-diisopropylamino (1) undecene, (11) N,N-dicyclohexylamino (1) undecene, (11) (N-cyclohexyl-N-isopropylamino) (1) undecene, p-diisopropylaminostyrene, p - diisopropylaminostyrene, p-diisopropylaminoally-benzene and (1) N,N-diisopropylamino (4)-allylcyclohexane.  Specified comonomers are ethylene propylene, butene-1, 3-methyl-butene-1, 4-methyl-pentene-1, 5-phenylpentene-1, allylcyclohexane, and styrene.  The polymerization is preferably effected in a hydrocarbon solvent such as benzene.  Exemplified catalysts are TiCl3 (obtained by reducing TiCl4 with Al) and Al(i-C4H9)2Cl or Al(C2H5)2 Cl, or Al(C2H5)3 or Al(i - C6H13)2Cl, or Al(i - C6H13)3, or VCl3 or VOCl3 or VCl4 and Al(i-C6H13)3.  The polymers are recovered by conventional methods, and they may be fractionated by solvent extraction.
Patent GB-1095769-A (GB)
Title: Electric motor drive with dynamic and static braking
IPC: H02P23/00
Filed: 1965-12-09
Abstract: 1,095,769. Control of A.C. motors. COMBUSTION ENGINEERING Inc. Dec. 9, 1965 [Dec. 28, 1964],(2)] No. 52399/65. Heading H2J. An induction motor 10 is adapted for static and dynamic braking by supplying both its stator and rotor windings with direct-current when the driving potential is interrupted. The braking current is supplied through transformer T9 and diodes D14, D15, to stator coils 12, 14, in parallel and then stator coil 16 in series. The braking current then passes through rotor coil 44 in series with the parallel-connection of rotor coils 42, 40, a silicon controlled rectifier SCR2 being included in the braking circuit. This rectifier is only gated through Zener diode D16 when all four transformer secondary windings T1-S2 . . . T4-S2 are energized, the primary windings T1-P . . . T4-P being energized together when the stator windings are disconnected from supply-lines L2, L3. Threephase power is applied to the motor through four similar networks 22, 24, 26, 28, each comprising a silicon controlled rectifier in a diode bridge circuit, pairs of the networks being rendered effective alternately for reversing the motor. When the silicon controlled rectifiers of one pair of networks are gated, the gating of the other rectifiers is prevented. The gating circuit for the rectifier SCR1-A, for example, comprises transformer secondary winding T5-S whose primary winding is supplied from a transformer having primary winding T2-P. The latter is energized only when rectifier SCR1-B is non-conductive. Thus, it is not possible to gate rectifiers SCR1- A, SCR1-B, simultaneously. Rectifiers SCR1-C, SCR1-D, are interlocked in a similar manner. The braking circuit comprises several eddy-current loops, both on the stator and rotor sides, diodes D12, D13, limiting the braking current in the primary circuit at high speeds but providing a low-resistance path when the speed approaches zero. The secondary loops comprise resistors R3, R4, R5.
Patent GB-1398620-A (GB)
Title: Sewing machines
IPC: D05B69/28
Filed: 1972-11-14
Abstract: 1398620 Sewing machines A M F Inc 2 Nov 1973 [14 Nov 1972] 52550/72 Heading D1G In a sewing machine with a slot 19 in a sewing surface, conveyor belts 10 and 11 for feeding material to and from the slot, a sewing head 13 for stitching material through the slot and transport means 21/22 for moving the stitching head parallel to the slot, sensing means are provided to sense the lateral edge of a piece of material to control the transport means to sew the material a predetermined distance from the edge. Sensing means are also provided to start the stitching and the second belt which preferably travels faster than the first belt 10 to tension material. material. In use, with a chain stitching machine, when a piece of material on the moving belt 10 cuts the infra-red light from a source 29 to anticipator and switching cells 50 and 51 the stitching motor 42, second belt motor and the head moving motor are started. Two further lamps 52, 53 are positioned on the sewing head light from which is reflected from an anvil 12 between the belts or a reflective strip 57 thereon onto respective photo electric cells 58, 59. As the material reaches the slot 19, it cuts-off light to the cell 58 thereby switching control of tracking to the cell 59 which senses the side edge of the material to stop the head moving motor with the needle the desired distance from the side edge. The cell 52 detects the trailing edge of the material to switch off the stitching and secondary belt motors after a delay. If desired a thread chain cutter may be provided. The pieces of material are held against the belts by air drawn through them and the perforated belt supports into chambers 14 and 15 by a blower 16 and raised at the slot 19 and and the anvil 12 between the belts by the effect of a plate 30 (Fig. 7) and air rising between the belts.  The eyed looper 64 is oscillated from right to left behind the needle and back in front of the needle 32 by a link 72 driven through an effective bellcrank from an eccentric 69 on a shaft 66, the looper 64 being moved backwards or forwards at the end of its sideways travel on a pivot 67 mounted on a shaft 73 which is oscillated through a drive yoke 77 by a further eccentric 76 on the shaft 66. Thread is supplied to the looper via a guide tube 75 and a take-up mechanism 83 to 86, including a pair of cam discs 85, from a supply. A pair of oscillatory needle guards 79, 82 are also provided.
Patent GB-530582-A (GB)
Abstract: 530,582. Gyroscopic apparatus. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and SAMUELSON, H. M. June 13, 1939, No. 17320. [Class 97 (iii)] [Also in Group XXIX] Means operated according to the speed of the rotor gives a visual or audible warning, or both, when the speed of the rotor is below a predetermined value ; the means may also control the supply of air to a jet driving the rotor, and may be combined with means controlling the rotor speed in accordance with the air speed of the craft by which it is carried. Fig. 1 shows a pitot tube 17 adjacent the rotor 11 of a turn indicator as described in Specification 511,196. The pressure built up by air entrained by the rotor operates to move the pointer 20 of a pressure gauge over parts 21, 22, 23 of a dial representing low, normal and high rotor speed respectively. Alternatively, or additionally, it moves a diaphragm 25 carrying a switch member 27 to make and break the circuit of a lamp 30. If the rotor is driven by an air jet 31, it may also control a diaphragm 36 connected to a valve 34 in the supply pipe 33 between a pump 32 and the jet 31. The chamber 37 for the diaphragm 36 may be modified to house a second diaphragm which is connected by a rod to the diaphragm 36 and is operated by airspeed pressure in such manner as to open the valve 34 as the air speed increases. The pitot tube 17 &c. maybe replaced by acentrifugal device or by a magnet operated by eddy currents in the rotor.
Patent GB-1474588-A (GB)
Title: Oxidic catalyst compositions containing a platinum group metal
IPC: B01J23/24
Filed: 1974-12-10
Abstract: 1474588 Oxidation catalysts for burners ENGELHARD MINERALS & CHEMICALS CORP 10 Dec 1974 [10 Dec 1973 (4)] 53459/74 Headings B1E and B1F Catalyst compositions comprise a catalytically active calcined composite of alumina, an additional oxidic component which is an oxide of chromium and/or tungsten and/or a rare earth metal and an oxide of titanium, zirconium hafnium and/or thorium, or which is an oxide of chromium and/or tungsten and a rare earth metal oxide and, optionally an oxide of calcium, strontium, barium, silicon and/or tin and a platinum group metal component incorporated in the composite after its calcination. The calcination of the composite is performed at a temperature of at least 850C except in the case where the additional oxidic component contains an oxide of chromium and/or tungsten, a rare earth metal oxide and an oxide of calcium, strontium, barium, silicon and/or tin when the minimum temperature is 500C. The calcined composite has a surface area of at least 20 m<SP>2</SP>/g after calcination at 1200C for two hours. The composite may be supported on an inert carrier such as a ceramic honeycomb before or after incorporation of the platinum group metal component. The catalysts may be promoted by an oxide or sulphide of Mn, V, Cu, Fe, Co or Ni. They may be used in the oxidation of organic compounds and carbon monoxide in, for example, exhaust gases and in the combustion of fuels. The catalytic combustion of unleaded gasoline is described. The fuel is mixed with preheated air, passed serially through two catalyst compositions of the invention supported on ceramic honeycombs separated by a small space to effect adiabatic combustion. The effluent gas is then mixed with more air to effect cooling. Each catalyst composition comprises palladium on a calcined composite of Al 2 O 3  + CeO 2  + Cr 2 O 3 , the upstream honeycomb carrying a greater amount of the composition than the downstream one.
Patent GB-1076690-A (GB)
Title: Apparatus for continuous hardening of steel articles
Inventor: RAUTGEIDING VITALY FEDOROVICH
IPC: C21D1/42
Filed: 1965-12-17
Abstract: Steel helical blades are continuously hardened in apparatus wherein the blades are heated with high frequency currents and cooled in a liquid by feeding the blades 4 between conductors of an inductor 6 to an isothermal bath 8 with a plurality of rollers 12, 28 mounted so that their lines of contact with the blades are generatrices of the <PICT:1076690/C6-C7/1> blade's helical surfaces.  The rollers of the feed mechanism may be mounted as shown (Fig. 1) on driving heads 9, 10 fixed between a tray 5 and a longitudinally split receiving tube 7 housed in the upper part of the bath 8 e.g. of oil heated to 180 DEG C., or on tubular driving heads forming a vertical guide into the bath, Fig. 4 (not shown).
Patent GB-1368985-A (GB)
Title: Method of applying bearing metal to damper masses of torsional  vibration dampers
IPC: B21D26/14
Filed: 1972-09-25
Abstract: 1368985 Electromagnetic printing SCHWERMASCHINENBAU "KARL LIEBKNECHT" MAGDEBURG KOMBINAT FUR DIESELMOTOREN U INDUSTRIEANLAGEN MAGDEBURG VEB 25 Sept 1972 [18 Nov 1971] 53617/71 Heading B3Q [Also in Division F2] A sleeve 2 of bearing metal is applied to the polygonal external surface of the damper mass 1 of a torsional vibration damper by contracting the sleeve electromagnetically. Flanges 3 may be formed in the same operation, or partially formed and completed as by rolling. A sleeve 2 may be used which has been electroplated with cadmium.
Patent GB-1401628-A (GB)
Title: Electric power supply systems
IPC: H05B41/24
Filed: 1971-11-18
Abstract: 1401628 Supplying discharge lamps in hazardous conditions VICTOR PRODUCTS (WALLSEND) Ltd 6 Nov 1972 [18 Nov 1971] 53634/71 Heading H2H A supply system for use in hazardous conditions comprises a D.C. supply line 1 to which is connected at least one inverter 2, 3 or 4 housed in a flame proof enclosure 11, 12 or 13 and providing a high frequency A.C. output. As shown, three inverters are connected to the supply line 1 by flame-proof connectors 14, 15, each inverter comprising an oscillator 5, 6 or 7 and an amplifier 8, 9 or 10 which produces an A.C. signal at a frequency of 26 KHz. The output of the inverter 3 is fed to lines 21 via a transformer 19 the windings of which are located on opposite sides of the enclosure 12. The output of the inverter 4 feeds control circuits 22 which supply the heated cathodes of discharge lamps 23. Each oscillator and amplifier may include solid state and/or thermionic devices.
Patent GB-1456518-A (GB)
Title: Filtering
IPC: B01D33/58
Filed: 1973-11-20
Abstract: 1456518 Cleaning filter cloth EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) 20 Nov 1973 [21 Nov 1972] 53795/ 73 Heading B1D To clean a filter cloth (e.g. endless band) it is stretched and vibrated by gas issuing from at least one nozzle which is biassed towards the cloth and which in use, is maintained spaced (e.g. not more than 2 mms) from the cloth by the. gas cushion produced on the cloth acting against the biassing force. The gas issues from the nozzle at a speed within 20% of the speed of sound in air. In Fig. 2 the nozzle has two slots 14, 15 and is biassed towards cloth 1 by a counterweight system 11, 12, 13 (or by a pneumatic, hydraulic or magnetic system). Each lip of slots 14, 15 is provided with a respective protruberance of semi-circular cross-section, 16, 17, 18, 19. The lengths l, l' of the leading and trailing edges 25, 24 of projecting shape 23 are preferably not more than three times the height h of the shape 23. The jets issuing from the slots 14, 15 may be inclined at an angle up to 20. In Fig. 6 (not shown) the nozzle has a single slot and is surrounded by a cover (33) which is open towards the cloth.