baber/WOPTO huggingface dataset:
Patent GB-1154478-A (GB)
Title: Construction Clip for Wall or Ceiling Constructions
IPC: E04B2/84
Filed: 1966-10-14
Abstract: 1,154,478. Securing wall panels. C. F. E. Inc. 14 Oct., 1966 [15 Oct., 1965], No. 45918/66. Headings E1W and E2B. A flat metal clip for connecting adjacent wall panel edges together and to the supporting framework is of H-section and has bifurcated flanges 34b and 36b on one side by which it is connected to an angle-sectioned stud member 14 forming one boom of a lattice stud 12, the other angle-sectioned stud member being connected thereto by a sinuous rod 16. The flange of the clip may all have diverging end portions (e.g. 46a), as shown, or only those furthest away from the studding, the main body portions of these outside flanges in either instance converging slightly on the inside flanges towards their ends. The limbs 62b and 60b may be co-planar with the flanges 34b and 36b, as shown, or may have 'terminal flanges 17b and 161b (Fig. 9, not shown) which butt up against the flange 14b of the stud member 14.
Patent GB-1492045-A (GB)
Title: Adaptive hybrid circuit
IPC: H04B1/52
Filed: 1974-10-28
Abstract: 1492045 Adaptive hybrid GENERAL ELECTRIC CO 28 Oct 1974 [29 Oct 1973] 46553/74 Heading H4R In an active hybrid circuit which is of the type described in Specification 1,491,885 in which an amplifier 20 feeding the transmit channel of a four wire circuit is fed both with the signal appearing across a fixed impedance means 17 connected to the two wire circuit and with a cancellation signal derived from the receive channel of the four wire circuit and in phase opposition to that part of the signal appearing across the fixed impedance means which derives from the receive channel of the four wire line, the cancellation signal is derived via a delay line impedance synthesizer network 25 which is controlled by correlation of the signal in the receive channel with the signal in the transmit channel of the four wire circuit. In an alternative embodiment, Fig. 2 (not shown) the impedance synthesizer network is connected in the connection between the output of amplifier 14 and the resistor 18a and a direct connection provided between amplifier 19 output and resistor 26. The impedance synthesizer is preferably a transversal equalizer network.
Patent GB-1086657-A (GB)
Title: Photographic silver halide light sensitive materials
IPC: G03C1/35
Filed: 1965-11-04
Abstract: 1,086,657. Silver halide materials. FUJI SHASHIN FILM KABUSHIKI KAISHA. Nov. 4, 1965 [Nov. 13, 1964], No.46814/65. Heading G2C. A photographic silver halide material contains either in the emulsion layer or a layer adjacent thereto a compound of the formulµ:- wherein R 1  is an alkyl, cycloalkyl, aryl or substituted e.g. amino-substituted pyrimidyl-methyl group, R 2  is an alkylene group and R' and R" are each hydrogen or an alkyl, hydroxy alkyl or aryl group or R' and R'' together constitute an alkylene group. The compounds give a blue black tone to the image and increase sensitivity.
Patent GB-1005550-A (GB)
Title: Low friction snap-acting thermostat
IPC: H01H37/60
Filed: 1963-11-27
Abstract: 1,005,550. Thermal switches. STEVENS MANUFACTURING CO. Inc. Nov. 27, 1963 [Dec. 31, 1962], No. 46852/63. Heading H2B. A snap-acting thermostat comprises an adjustably mounted bimetal 29 coupled by an insulating link 38 with a snap-acting contactcarrying blade 14 having an adjustable snapover point provided by an adjustment screw 48 acting on a blade 49 engaging the blade 14. Movable contact-carrying blade 14 moves between contacts 18 and 42, the position of contact 42 being adjustable by a screw 44. The bimetal 29 is mounted on a resilient arm 16, and is adjusted by a screw 32 having an insulating tip 31 engaging a socket 30 in a rivet 28 mounting the bimetal 29 on the arm 16.
Patent GB-1030578-A (GB)
Title: Detector circuits for damped a.c. signal waves
IPC: H04L27/08
Filed: 1962-12-13
Abstract: 1,030,578. Telegraphy; transistor switching Circuits. WESTERN ELECTRIC CO. Inc. Dec. 13, 1962 [Dec. 21, 1961], No. 47066/62. Headings H3T and H4P. The invention provides a detector for damped A.C. bursts such as may occur in frequency shift telegraph systems. The detector has a threshold level which, when exceeded by the initial amplitude peak of the received signal, is reduced whereby the duration of the output signal is longer than that of the initial peak of the input. Reference is made to a tape or card reader which controls which three of twelve available frequencies shall be sent to line. Each of the frequencies comes from a group of four oscillators. At the receiver the signals pass to twelve detectors, each tuned to one of the twelve frequencies. The detector outputs control relays which in turn control a printer. Each detector comprises a resonant circuit 12 and two transistor stages. When circuit 12 resonates transistor 16 conducts so long as the received signal exceeds the threshold level set by source 18. Transistor 26 also conducts and energizes relay 29. If the signal is damped and falls below the level set by 18 printer relay 31 may not have time to operate were it not for a feedback loop 25. Since the collector voltage of transistor 26 falls when it conducts, point 13 will also fall and this fall effectively reduces the threshold of the detector circuit so that the received signal amplitude exceeds this new threshold. Relay 29 is therefore maintained energized until the received signal ends.
Patent GB-1245616-A (GB)
Title: Organic phosphorus compounds
IPC: C07F9/535
Filed: 1968-10-04
Abstract: 1,245,616. Diphosphacyclopent - 5 en - 4 ones. RUHRCHEMIE A.G. 4 Oct., 1968 [13 Oct., 1967; 7 Nov., 1967; 15 July, 1968], No. 47250/68. Heading C2C. 1,2 - Diphosphacyclopent - 5 - en - 4 - ones having the general formula in which R 1  is an aliphatic, cycloaliphatic, heterocyclic or aromatic radical linked to the nucleus via oxygen, R 2  and R 3  are aliphatic, cycloaliphatic, heterocyclic or aromatic radicals, A is oxygen, sulphur or nitrogen, n is 0 or 1 and may be 2 when A is S or N, R 4 , R 5  and R 6  are carboxylic acid ester groups are prepared by reacting a duster of a malonic acid with a compound X 2 P-(A) n R, where X is a halogen atom, R is an aliphatic, cycloaliphatic, heterocyclic or aromatic radical which may be substituted. Bases such as triethylamine or tributylamine may be added to accept the hydrogen halide evolved. Complexes with transition metals may be obtained. The compounds are useful as pest controlling agents.
Patent GB-1006890-A (GB)
Title: New sulphonamides
IPC: C07D239/69
Filed: 1963-12-02
Abstract: The invention comprises compounds of the formula <FORM:1006890/C2/1> wherein A is a direct link or an oxygen atom, R11 is an alkyl or alkoxyalkyl radical, and R111 is an alkyl radical of 1-3 carbon atoms, and their preparation by (a) reacting an appropriate 5-substituted-2-amino-pyrimidine with an alkanoyl-benzene sulphonyl chloride or bromide in the presence of an acid-binding agent, or (b) reacting an alkanoylbenzenesulphonyl guanidine with the reaction product obtained by Vilsmeier reaction from a 1,1-dialkoxy-2-R11-A-ethane or a 1-R11-A-2-alkoxyethylene, an N,N-disubstituted formamide and an inorganic acid chloride such as phosphoruspentachloride or phosgene, e.g. with a b -alkoxy-a -R11-A-acrolein or an acetal thereof, or b -chloro-a -R11-A-acrolein or an acetal thereof.  The compounds have activity as anti-diabetic agents, a tragacanth suspension being used in animal tests. Specification 913,716 is referred to.
Patent GB-1246399-A (GB)
Title: Process for the production of vinyl acetate from ethylene
IPC: C07C69/15
Filed: 1969-09-29
Abstract: 1,246,399. Vinyl acetate. SOC. ITALIANA RESINE S.p.A. 29 Sept., 1969 [12 Oct., 1968], No. 47853/69. Heading C2C. In the preparation of vinyl acetate by oxidation of ethylene with oxygen in the presence of acetic acid and alkali metal and alkaline earth metal acetates, and a mixture of palladium and copper chlorides as catalyst, the catalyst is regenerated by removing the acetic acid mixture from the reaction mixture, contacting with an element having a lower electrochemical potential than copper and palladium, converting the recovered elementary palladium and copper to chlorides, and returning to the reaction mixture. In examples, iron and zinc are used as the reducing metals and the powdered recovered metals are dissolved in hydrochloric acid through which chlorine is bubbled.
Patent GB-1174969-A (GB)
Title: Gas Turbine Engine Provided with an Alternator
Inventor: ALLEN FRANCIS JAMES
IPC: H02K7/18
Filed: 1967-10-20
Abstract: 1,174,969. Gas turbine engines. ROLLSROYCE Ltd. Oct.20, 1967, No.47905/67. Headings F1G and F1T. [Also in Division H2] A gas turbine engine comprises an alternator whose rotary armature and stationary field structures 27, 28 are respectively carried by the bladed rotor and bladed stationary structures 21, 22 of the engine. As shown, the armature structure 27 comprises an annular laminated wire 31 carried by the rotor first stage 21 of a low-pressure compressor 12 and having equispaced slots 33 receiving al. armature coils 32 which supply polyphase e. g. two phase power to anti-icing heating elements 25 embedded in a synthetic resin matrix of a rotatable intake bullet 24. The heteropolar field structure 28 comprises Cu. coils as carried by polepieces 36 retained by wedges 39 in an annular member 37 carried by a flange 38 forming part of the compressor stator first stage 22.
Patent GB-1474124-A (GB)
Title: Fuel-air regulating system for hot gas engines
Inventor: NYSTROM P H
IPC: F02G1/047
Filed: 1974-11-06
Abstract: 1474124 Hot gas engines FORENADE FABRIKSVERKEN 6 Nov 1974 [13 Nov 1973] 48018/74 Heading F1S A fuel-air regulating system for hot gas engines, to maintain a substantially constant predetermined high temperature value between upper and lower limits includes a temperature sensor 5 adjacent the high-pressure working gas heater tubes 4 in a combustion chamber 1 and effective to open a switch 6 when, the working gas temperature exceeds a predetermined upper temperature value, to reduce the air and fuel supply, and to close the switch to increase the air and fuel supply when the temperature falls below a predetermined lower value. As shown the switch 6 is in circuit with a battery 7 and a solenoid 12 effective to open a valve 10 in the air supply duct 11 from a blower 8. The circuit also includes a magnetic valve 20 controlling a fuel by-pass in return line 18 to the tank 15 from an atomiser 16. The working gas may be helium or hydrogen. The regulating system therefore supplies fuel and air in amounts that either exceed what the engine requires at maximum delivered power or is less than the engine requires at idling.
Patent GB-1195496-A (GB)
Title: Photographic Viscous Processing
Inventor: SCHRANZ KARL-WILHELM
IPC: G03C5/26
Filed: 1968-10-10
Abstract: 1,195,496. Processing photographic colour materials. AGFA - GEVAERT A.G. Oct. 10, 1968 [Oct. 14, 1967], No.48022/68. Heading G2C. Photographic silver halide colour materials after exposure and colour-development are bleached and fixed by coating first with a viscous paste containing a fixing agent and then overcoating this layer with a viscous paste containing a silverbleaching agent. The extensive washing step normally used between development and bleachfixing can be replaced by a short rinse.
Patent GB-1463670-A (GB)
Title: Organo -alkali metal- containing derivatives of pyridine
IPC: C07F1/00
Filed: 1973-12-17
Abstract: 1463670 Organometallic derivatives of pyridine JOHN WYETH & BRO Ltd 6 Dec 1974 [17 Sept 1973 (2) 27 March 1974 (2) 12 July 1974] 48412/74 48413/74 48414/74 48415/74 and 50181/74 Divided out of 1432378 1463667 1463666 (2) 1463668 Heading C2J Compounds of the general formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>6</SP> are H, CF 3  or alkyl, cycloalkyl, aralkyl or aryl radicals which may be substituted by alkyl, alkoxy, NO 2  or -CF 3  groups or R<SP>1</SP> and R<SP>2</SP> together represent where n is 1, 2 or 3, R<SP>7</SP> represents single or multiple substitution by H or alkyl, cycloalkyl, aralkyl or aryl radicals which may be substituted by alkyl, alkoxy, NO 2  or -CF 3  and when R<SP>1</SP> and R<SP>2</SP> together form an alkylene chain the resulting ring may be substituted by one or more R<SP>7</SP> radicals, M is Na, K or Li and m is 1, 2 or 3 with the proviso that when R<SP>1</SP> and R<SP>2</SP> form an alkylene chain then n and m may be the same or different but when m is 2, n is 1 or 3, are prepared by reacting a compound of the above general formula wherein M is -H with MR<SP>10</SP> or MA, R<SP>10</SP> being alkyl, aryl or aralkyl and A being a secondary amine radical, usually in a solvent such as diethyl ether, dimethoxyethane, THF, benzene or hexane. When MA is used as reactant, this may be prepared "in situ" by reaction of MR<SP>10</SP> with an appropriate secondary amine such as a dialkylamine, piperidine or a bis-(trialkylsilyl) amine.
Patent GB-490984-A (GB)
Abstract: 490,984. Knitted fabrics. SCHONFELD, P. Dec. 2, 1937, Nos. 33386, 33387, and 33388. Convention dates, July 16, Aug. 25, and Oct. 25. [Class 74 (ii)] Rubber threads 9 are laid in between two groups of warp threads 7, 8, worked together, as described in Specification 389,995, and, to reduce running - back, they are looped up at intervals. The threads 8 are made to reverse their direction of racking in the course following that in which the threads 9 are looped up. The meshes thus formed by the threads 8 tend to hold the loops 9a in place and provide additional security against running-back. The threads 9 are preferably divided into two or more sets and worked so as to distribute the loops 9a evenly over the fabric.
Patent GB-1326978-A (GB)
Title: Tube heat exchanger
IPC: F28F1/12
Filed: 1971-10-22
Abstract: 1326978 Tubular heat exchangers SVENSKA MASKINVERKEN AB 22 Oct 1971 [7 June 1971] 49201/71 Heading F4S A shell and tube heat exchanger comprises a bundle of heat exchange tubes 8 disposed within an outer casing 1, the outer surface of each tube 8 being provided with rows of parallel closely spaced pins 10 mounted so that their bases are at right angles to the tube walls 11. Each pin 10 has a configuration such that each tube crosssection can be circumscribed by a regular hexagon. As shown, the pins arranged at the hexagon corners are unbent, while the pins in the centre of the sides of the hexagon have the greatest degree of bending. By arranging the pins in this way the tubes can be arranged in a honeycomb pattern, filler bodies 12 only being necessary between outer tubes and the wall of the casing. Within each tube 8, which is closed at its end remote from a tube plate (9, Fig. 1, not shown) from which it is supported, is disposed a concentric tube 7 extending from a second tube plate (6, Fig. 1). In use a first fluid flows from an inlet (4) through the tube (7) to the closed end of tube 8 and then back through the annular space between the two tubes 7 and 8 into a chamber defined between the two tube plates (6 and 9) to finally exit through an outlet (5). A second fluid flows over the tubes (8) between an inlet (2) and outlet (3) in the casing 1.
Patent GB-1061340-A (GB)
Title: Diversion section for motor roads
IPC: E01D15/127
Filed: 1965-11-19
Abstract: 1,061,340. Temporary roadways. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. Nov. 19, 1965 [Nov. 21, 1964], No. 49337/65. Addition to 1,030,949. Heading E1G. A temporary roadway, to increase the traffic capacity of an existing roadway comprises a number of carriageway plates 1 wide enough to overlap the verges of the existing roadway and supported on steel girders 2 to which the plates are detachably secured, the girders being in end to end relationship along the roadway. The securing means may be bolts threading into captive nuts on the girders, T-head bolts or bolts threading into clamps engaging the girder flanges. Sound deadening material may be used between the metal plates 1 and the girders 2 and kerbs and/or rails may be held in slot formations in the sides of the plates.
Patent GB-1318672-A (GB)
Title: Apparatus for inspecring a workpiece
IPC: G01B11/02
Filed: 1971-10-25
Abstract: 1318672 Testing workpieces INTERNATIONAL BUSINESS MACHINES CORP 25 Oct 1971 [19 Nov 1970] 49420/71 Heading G4H A workpiece, e.g. a spherical type element 4 (Fig. 1) is inspected by positioning it until a desired portion is displayed on a television 7, its position being digitized and compared with reference signals. As described any character on the type element may be viewed by vidicon 11 to display it in magnified form by appropriately tilting and rotating the element by member 21. A mask unit 13 has a set of cross hairs which determine a reference point on the display, table 20 being moved in two directions to position different points of a selected character under the intersection of the cross hairs. The rotation tilt and X and Y displacement may be displayed. When an operator has positioned the table 20 for a measurement a push button on panel 35 is pressed and the measured data is read via gates into controller 3 for comparison with a table lookup. After all characters on an element have been checked the output is printed or punched on cards. The table lookup may be derived by measuring a reference element. The apparatus may be programmed so that after each measurement member 2 moves the element so that the characters are selected in a predetermined manner. Alternatively the apparatus may be operated manually in which case the member moves the element one character position each time an appropriate button is pressed. The digitizers may comprise discs with coded apertures and an outer clock track.
Patent GB-497073-A (GB)
Abstract: 497,073. Automatic control systems. RIIS, P. HARTMANN-. June 12, 1937, No. 16362. [Class 38 (iv)] Temperature.-The boiler temperature in an oil-fired central heating plant is varied in accordance with the outside temperature and the size of the flame is varied likewise. The fuel pump and the air-blower are driven by a single electric motor which is stopped on attaining a temperature predetermined by a switch sensitive to outside temperature and the same switch has additional contacts determining the amount of resistance in the motor circuit. As shown in the Figure, the circuit of a relay 40 controlling a switch 19b in the circuit of the motor 22 includes a selector switch 20 operated in accordance with boiler temperature and a selector switch contact 25b operated by a bimetallic element 26 exposed to outside temperatures so that the motor circuit will be interrupted at a boiler temperature dependent on outside temperature. Relays 36, 32, 38 are selectively energized according to outside temperature by a switch contact 25a, also operated by the element 26, so that resistances a, b, c are included in the motor circuit as the outside temperature rises and the size of flame varied accordingly. A flue temperature switch 39 ensures full flame each time the fuel burner is ignited and a boiler temperature switch 19a stops the motor on excessive temperature. A modification, Fig. 2 (not shown), is described wherein the resistances are directly controlled by the element 26 and the motor switch 19b is directly actuated by a thermal element 19 having an additional heating winding controlled by the element 26. Specification 485,710 is referred to.
Patent GB-1055530-A (GB)
Title: Velocity sensor
IPC: G01P3/26
Filed: 1965-11-24
Abstract: 1,055,530. Fluid-pressure servomotor systems; pure fluid amplifiers. BENDIX CORPORATION. Nov.24, 1965 [Nov.27, 1964], No. 49921/64. Headings G3H and G3P. A velocity sensor comprises a housing 10 having a chamber 12 with an inlet 14 and an outlet 16. Fluid from a constant pressure source 18 is fed to the inlet through a restrictor 22. A member 36 is rotatable in the chamber and has a constant fluid pressure supplied through conduit 40 and passages 44, 46, 48, 50 to the annular chamber between the member 36 and housing 10. Fluid leaving the member 36 acts on the fluid passing from the inlet 14 to the outlet 16 to cause a swirl in the fluid and the speed of rotation of the member 26 determines the swirl imposed on the fluid. The swirl determines the flow through the chamber and hence the pressure drop across the restriction 22 which is fed to a senor 54. In a modification, the member 36 is stationary and the housing 10 is rotated, the fluid imposing the swirl being fed to chamber 12 from the inner periphery of the housing 10.
Patent GB-1529735-A (GB)
Title: Process for producing concentrated nitric acid
IPC: C01B21/26
Filed: 1975-12-05
Abstract: 1529735 Nitric acid SOC ITALIANA RESINE SIR SpA 5 Dec 1975 [20 Dec 1974] 50108/75 Heading C1A  A process for producing nitric acid having a concentration of at least 98 wt. per cent comprises: (a) in a first stage, (i) subjecting ammonia to catalytic oxidation so as to produce a first gas comprising water and nitric oxide; and (ii) removing water from the gas and converting the nitric oxide therein to nitrogen dioxide so as to produce a second gas 25 comprising nitrogen dioxide; (b) in a second stage (i) contacting the second gas 25 with a liquor comprising nitric acid 26 having a concentration of at least 80 wt. per. cent to produce a solution 27 of nitrogen dioxide in acid; (ii) heating 18, 19 the solution to evolve nitrogen dioxide 31 therefrom; and returning the liquor to stage (b) (i) above; and (iii) cooling 20 the evolved nitrogen dioxide together with unreacted nitrogen dioxide from the fifth stage below to form liquid nitrogen dioxide 13; (c) in a third stage, constituting a first chemical absorption stage 14, contacting (i) superazeotropic nitric acid 36 and (ii) water or a dilute aqueous solution of nitric acid 30 with a third gas 38 comprising nitrogen dioxide and oxygen, said third gas comprising the gaseous product of a second chemical absorption stage 15, to produce nitric acid 40 having a concentration of from 70 to 80 wt. per cent and a fourth gas 39 comprising unreacted nitrogen dioxide; (d) in a fourth stage 15, constituting the second chemical absorption stage, treating the nitric acid 40 produced in the third stage and a fraction 41 of the liquid nitrogen dioxide produced in the second stage with air 44,47 to produce superazeotropic nitric acid 45 having a concentration of up to 90 wt. per cent of said third gas 38; and (e) in a fifth stage, delivering a further fraction 43 of the liquid nitrogen dioxide produced in the second stage to the upper portion of a distillation column 16 and delivering the superazeotropic nitric acid 45 produced in the fourth stage to the middle portion of the column, so as to form in the column the desired nitric acid 46 having a concentration of at least 98 wt. per cent, said desired nitric acid being removed from the column at a position disposed between the position of introduction of the liquid nitrogen dioxide and the position of introduction of the superazeotropic nitric acid, unreacted superazeotropic nitric acid 36 being removed from the lower portion of the column and returned to the third stage 14 of the process, and unreacted nitrogen dioxide 32 being removed in gaseous form from the column and returned to the second stage of the process.
Patent GB-1082136-A (GB)
Title: Wear resisting, non-magnetizable tools
IPC: B23P15/28
Filed: 1964-12-10
Abstract: 1,082,136. Axes; chisels; hammers; wrenches; pliers. J. H. LERBS. Dec.10, 1964 [Dec. 10, 1963], No. 50354/64. Headings B4B, B4C and B4W. A wear resistant tool comprises a wear resistant non-magnetizable cover layer welded at the points of wear to a non-magnetizable steel base material. The cover layer forms e.g. a cutting edge on the tool and may be formed of alloys containing cobalt, chromium, tungsten and some carbon, the wear faces being of Rockwell hardness of 50-60 H.R.C. As described, the invention may be applied to a hatchet, an axe, a chisel, a hammer, tongs, nippers, a spanner or a wrench.