baber/WOPTO huggingface dataset:
Patent GB-619799-A (GB)
Title: Slow-releasing electro-magnetic relay
IPC: H01H50/46
Filed: 1946-12-24
Abstract: 619,799. Contracting rings. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 24, 1946, No. 37891. Convention date, Jan. 29. [Class 83 (iv)] [Also in Group XXXVII] A ring 13 of copper or aluminium or other metal is mounted on the core 11 of an electromagnetic relay by slipping it over the enlarged polepiece 12 and then compressing it inwards till it fits the core closely as shown in Fig. 2. The pressing may be effected by the movement of several radial jaws 16 operating between walls 14, 15, jaws and walls being finally removed. In the method shown in Fig. 3, a jaw 35 fixed to the ram of a press is adapted to push the ring 33 through a tapering die-ring 34 in order to compress it on to the core 31.
Patent GB-943663-A (GB)
Title: Improvements in or relating to centrifugal governors for regulating the speed of electric motors
IPC: H02K11/23
Filed: 1961-10-23
Abstract: 943,663. Centrifugal switches. A. C. COUTANT. Oct. 23, 1961 [Oct. 24, 1960], No. 37926/61. Heading H2B. A centrifugal governor for an electrical motor comprises a cylindrical member 3, driven by the motor shaft 1, and from whose surface are cut two resilient arms 4, 5 carrying adjacent their free ends contacts 7, 6, arranged to engage the surface of a frusto-conical conducting member 8 in the stationary condition but to move away therefrom as the speed of shaft 1 increases beyond a preset value, which is adjustable by means of a nut 11.
Patent GB-1489375-A (GB)
Title: Process for preparing an ethynylating agent
IPC: C07C29/42
Filed: 1974-10-01
Abstract: 1489375 Preparing a magnesium-acetylene complex F HOFFMANN-LA ROCHE & CO AG 1 Oct 1974 [1 Oct 1973 15 April 1974] 38226/75 Divided out of 1489374 Heading C2J A magnesium-acetylene complex for use as an ethynylating agent is prepared by reacting magnesium with acetylene in liquid ammonia in the presence of at least 5% by weight of sodium, in the form of sodium metal or combined with ammonia as sodamide, based on the weight of sodium and magnesium. The sodamide may be formed in situ by reacting metallic sodium with liquid amonia in the presence of a ferric halide catalyst. The complex may contain from about 1 part by weight of Mg complexed with from about 0À9-2 parts by weight of acetylene.
Patent GB-1522174-A (GB)
Title: Colour display device capable of displaying a change of colour upon application of external stimuli
IPC: G02F1/17
Filed: 1975-09-17
Abstract: 1522174 Colour display device  MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Sept 1975 [18 Sept 1974] 38267/75 Addition to 1522173 Headings G2C and G2F [Also in Divisions C4-5] A colour display device comprises a compound which is capable of undergoing a colour change on stimulation by light, heat, an electric current, pressure or irradiation by an electron beam or α- or γ-rays and is of Formula: (in which Q is a benzene ring which is optionally  substituted and/or forms part of a fused ring system; R 1  and R 2  are each 1-4C alkyl which is optionally substituted by OH or 1-4C alkoxy; R 3  is H; alkyl, alkoxy, aryl, aryloxy, halogen or CN; Y is O or S; Z is an alkylene group providing a chain of 2-4 C atoms between the N and Y atoms; A is a condensation residue of an aromatic or heterocyclic aldehyde or nitroso compound). In specific examples reversible or non-reversible colours are formed by inter alia, exposing to U.V. a paper impregnated with an above compound, heating a compound either above or in a solvent, applying a A.C. or D.C. current across a solution of a compound, or exposing a mixture of a compound in gelatine and hydroquinone to an electron beam or α- or γ-rays.
Patent GB-818099-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
Inventor: BERWICK ALBERT GEORGE
IPC: F04B9/14
Filed: 1956-12-17
Abstract: 818,099. Forcing liquids by gaseous pressure. GASKELL & CHAMBERS Ltd., [trading as NON-DRIP MEASURE CO.]. Dec. 3, 1957 [Dec. 17, 1956], No. 38447/56. Classes 8(1) and 102(2). An air pump for creating alternate pressure and suction in a liquid chamber having valve controlled liquid inlet and outlet passages has a restricted passage 13 through the piston controlled by a non-return valve 14 so that on the suction stroke air may flow into the cylinder. The restricted passage and valve may be provided on the cylinder. Specification 634,632 is referred to.
Patent GB-879494-A (GB)
Title: Pneumatic suspension for vehicles
IPC: F16F9/08
Filed: 1959-11-13
Abstract: 879,494. Fluid springs. RECHERCHES ETUDES PRODUCTION. Nov. 13, 1959 [Nov. 15, 1958], No. 38657/59. Class 108(3). A substantially monochronous vehicle suspension device comprises a body separated into two chambers by a deformable diaphragm 5 which is moved by the fluid in the lower chamber under the influence of suspension movements, a bell shaped member 6 defining with the diaphragm the upper chamber 20, a part spherical body 7 divided into a plurality of compartments with external orifices 11, 11 a which are spaced apart along the axis of the device and a second diaphragm 13 stretched over the part spherical body and defining two annular chambers 16, 17 between a capping member 12 and the member 6. The upper chamber 20 communicates through conduits 18 with annular chamber 17 and contained within the chamber 20, conduits 18, chamber 17 and the compartments is a fixed mass of gas such that in the equilibrium position of the parts a number of the openings 11a are closed by diaphragm 13. When the vehicle load increases diaphragm 5 is raised compressing the fixed mass of gas and pushing it through the conduits 18 into annular chamber 17 so that diaphragm 13 is expanded opening more of the orifices 11 and conversely when the load is relieved the orifices are closed in turn. In the embodiment shown the lower chamber comprises an hydraulic cylinder 1 and piston 2 with damping passages 4 and the conduits 18 are covered in turn by the diaphragm 5 to give a progressive rate under shock loads. The compartments are formed by a series of radial walls passing through the axis of the device but they may alternatively be formed by a series of parallel planes perpendicular to the said axis or as a series of part-conical depressions in the body 7. The lower chamber may alternatively be part of a pneumatic suspension such as a bellows and the members containing the fixed mass of gas and the diaphragm 5 may be housed separately from the lower chamber actuated by vehicle suspension movements the two portions being connected by a pipeline. Specifications 792,785 and 835,151. are referred to.
Patent GB-1367186-A (GB)
Title: Apparatus for testing a sample of gas
IPC: G01N15/00
Filed: 1972-08-21
Abstract: 1367186 Gas testing apparatus DRAGERWERK A G 21 Aug 1972 [19 Aug 1971] 38952/72 Heading G1B A predetermined volume of gas is tested by drawing a gas sample through a testing means, for example a testing vessel 5. A change-over valve 2 initially connects a vacuum pump 3 to a chamber 1 so as to reduce the pressure therein until a pressure indicator means 6 initiates reversal of the connections in the valve 2 so as to close off the pump 3 and open the chamber 1 to the vessel 5. The pressure in the chamber 1 then rises as the gas sample enters the chamber 1 via the vessel 5, until a second pressure indicator means 7 actuates the valve 2 so as to reverse the connections and thereby automatically initiate a further cycle.
Patent GB-1473300-A (GB)
Title: Cigarette making machines
IPC: A24C5/39
Filed: 1973-08-17
Abstract: 1473300 Cigarette making machines MOLINS Ltd 15 Aug 1974 [17 Aug 1973] 39028/73 Heading A2C In a cigarette making machine in which tobacco is showered through a channel extending towards a conveyor on which the tobacco builds up to form a cigarette filler stream, additional smokable material is fed into the channel, the material being delivered in sheet form and being shredded as it passes into the channel, so that the shredded additional material is showered together with tobacco towards the conveyor. As shown in Figs. 1 and 2 additional smokable material is fed through an opening in the front wall 2A of a channel 2. This material is provided in the form of a web 18 of tobacco substitute or reconstituted tobacco which is fed through two sets of co-operating shredding discs 20, 22, disposed on horizontal axes and rotatable to shred sheet 18 longitudinally into strips. There may also be provision to cut the strips transversely. Specification 916141 is referred to.
Patent GB-1022711-A (GB)
Title: Improvements in and relating to the auto-stabilisation of jet lift and ground effect vehicles
Inventor: MIDGLEY PETER JOHN
IPC: B64C13/24
Filed: 1963-10-03
Abstract: 1,022,711. Controlling aircraft; air cushion vehicles. ENGLISH ELECTRIC AVIATION Ltd. Nov. 27, 1964 [Oct. 3, 1963], No. 39082/63. Headings B7G and B7K. [Also in Division G3] An autostabilization system of a vehicle for example a jet lift vehicle, helicopter or air cushion vehicle, comprises a rate gyro 1, Fig. 1 (not shown), and a manual input 2, the signals from which are combined and fed to an integrator 4. The integrator output is supplied to an addition linkage 5 which also receives a signal direct from the gyro, and the linkage output is used either directly or through a servomotor 6 to control an altitude correcting mechanism 7 and may also control a propulsion unit 7a. The manual control may constitute a drift trimmer with a separate control being applied to the linkage 5.
Patent GB-1400571-A (GB)
Title: Catalytic compositions their production and their use
Inventor: BUONOMO FRANCO
IPC: F01N13/04
Filed: 1972-08-22
Abstract: 1400571 Gas separation SNAM PROGETTI SpA 22 Aug 1972 [2 Sept 1971 18 July 1972] 39142/72 Heading C1A [Also in Division B1] I.C. engine exhaust gases are treated for oxidation of carbon monoxide and hydrocarbons and reduction of nitrogen oxides by passage over a catalyst, the active ingredient of which is of the formula CuNi 1À4-1À6 Cr 2À5-3À0 O w , or CuMnCr 2À5-3À0 O w  or CuMn 1-2 Co 1-6 O w , wherein w is a value such that the metals are present in the oxidized state. The silencer unit shown in Fig. 2 has an inlet 1 and an outlet 5 for exhaust gases and contains a plurality of beds 2 of the catalyst separated by perforated plates 3 and held in place by nets 4. Feed holes 6 are provided for introduction of an oxidizing gas, e.g. air. Suitably, the silencer comprises an upstream zone for reduction of nitrogen oxides wherein reducing conditions prevail and a downstream zone for oxidation of carbon compounds wherein the conditions are oxidizing. This may be done by introduction of air between the two zones or by operating initially in a completely oxidizing atmosphere and subsequently moving the point of introduction of the oxidizing gas downstream. A conventional catalyst, e.g. a Ni-Cu- Mn-Fe alloy, may be used in the reduction bed.
Patent GB-1530760-A (GB)
Title: Gas turbine and transmission plant
IPC: F01D17/00
Filed: 1977-09-20
Abstract: 1530760 Gas turbine plant with separate power turbine S-O KRONOGARD 20 Sept 1977 [24 Sept 1976] 39161/77 Heading F1G A gas turbine plant comprises a gas generating section comprising a compressor 10, combustion chamber 21 and turbine 11 driving the compressor through shaft 12; the plant comprises also a power turbine 13 and an auxiliary turbine 14. It is arranged that at part load, the auxiliary turbine will extract power from the turbine 11 which drives the compressor whereby the auxiliary turbine will be driven as a fan. The fuel supply to the combustion chamber is arranged so that at partload and at a given power turbine speed the gas temperature upstream of all the turbine rotors is substantially equal to that representing full load. The turbines are inter-connected by planetary gearing - the power turbine 13 drives through intermediate pinion 16 the ring gear of the planet gear which in turn drives the load 18; the auxiliary turbine 14 drives the planet carrier; the sun gear drives a variable transmission member 17 from which drive is taken to the shaft 12 of the compressor-turbine assembly 10, 11. In Fig. 2 the auxiliary turbine 14 is inter-connected with the compressor and turbine assembly, 10, 11 through a gear transmission 25 of fixed ratio.
Patent GB-1074331-A (GB)
Title: Penicillins
Inventor: GODTFREDSEN WAGN OLE
IPC: C07D499/74
Filed: 1964-09-28
Abstract: Penicillin derivatives have the general Formula I: <FORM:1074331/C2/1> in which each of R1 and R2 is hydrogen or a C1- 4 alkyl group; and the invention also includes the pharmaceutically acceptable salts and easily hydrolysable esters thereof.  The penicillins are prepared by reacting 6-aminopenicillanic acid with a reactive derivative of a 3-substituted adamantane-(1)-carboxylic acid of formula <FORM:1074331/C2/2> wherein R1 and R2 have the above meanings. Alternatively, 3-amino-adamantyl-(1)-penicillin may be produced by hydrogenation of (a) 3-azido-adamantyl-(1)-penicillin or (b) 3-carbobenzoxyamino-adamantyl-(1)-penicillin. 3-Acetamino-adamantane-1-carboxylic acid is prepared by treating 3-bromo-adamantane-(1)-carboxylic acid with acetonitrile and conc. H2SO4.  3 - Amino - adamantane - (1) - carboxylic acid is produced by the alkaline hydrolysis of 3-acetamino-adamantane-(1)-carboxylic acid.  3 - Carbobenzoxyamino - adamantane - (1) - carboxylic acid is prepared by treating 3-aminoadamantane-(1)-carboxylic acid with carbobenzoxy-chloride.  3 - Azido - adamantyl - (1) - carboxylic acid is prepared by treating 3-bromo-adamantane-(1)-carboxylic acid with lithium azide in dimethyl-formamide.  A therapeutic composition comprises a 3-amino-adamantyl-(1)-penicillin of Formula I, or a salt thereof, and a carrier.  The penicillins have high antibacterial activity, and are resistant to acids and to penicillinase.  They may be administered orally, rectally, topically and parenterally.
Patent GB-1047159-A (GB)
Title: Filter clogging indicator
IPC: B01D35/143
Filed: 1964-09-28
Abstract: 1, 047, 159. Filter clogging indicator. CLEVELAND TECHNICAL CENTER, Inc. Sept. 28, 1964 [Oct. 9, 1963], No. 39466/64. Heading B1D. A device for indicating when a filter 6, e.g. an oil filter, is clogged comprises a by-pass conduit 11 which is connected to the inlet side 2 of the filter and which has a portion 16 of relatively large cross section and a portion 13 of smaller cross section, and an indicating means responsive to the difference in pressure of the liquid flowing through the two portions. At any time the liquid passing through the venturi throat portion 13 is accelerated to a higher velocity than the liquid in the portion 16, and under such conditions the pressure in passage 13 is less than the pressure in passage 16. Two passages 32 and 34 connect the portions 16 and 13 respectively to opposite sides of a piston 22 which during normal filtering is biased by a spring 25 so that a pointer 28 on the piston rod 23 is at a mark A. On clogging of the filter the pressure of the liquid in conduit 11 increases and this increases the velocity of liquid flow through the portion 13 so that the difference in velocities of the liquid in the portions 16 and 13 increases and hence the difference in the pressures also increases. This increased difference in pressure in passages 32 and 34 causes the piston to overcome the spring action and to move so that the pointer 28 is at marking B. A magnet 27 is attracted by the metal piston container 24 and holds the pointer at mark B once the piston has moved in a predetermined distance. The pointer 28 may actuate an electrical signal or control an electrical ignition circuit. Alternatively the pointer may be omitted, and instead an extension 44 (Fig. 4) of the piston rod may be coloured and show through an opening 46 in a shield when the piston is in its clogged inner position.
Patent GB-1482579-A (GB)
Title: Optical gates and devices incorporating the same
IPC: G02F3/00
Filed: 1974-09-10
Abstract: 1482579 Controlling light XEROX CORP 10 Sept 1974 [12 Sept 1973] 39488/74 Heading G2F [ Also in Division H1] In an optical gate comprising a reverse biased semi-conductor diode 16, 18 which is normally transparent to a light beam 26 of a wavelength approximating the absorption edge of the semiconductor material 16, an electron or light beam may be directed to the diode junction 19 to introduce charge carriers and render it conductive, whereby the bulk of the potential difference from source 17 is transferred from the thin junction region 19 to the bulk layer 16, the latter then absorbing the beam 26 due to the field induced absorption edge shift. The electron beam may be provided by a photocathode, e.g. via an electron multiplier, Fig. 4 (not shown). As described the bulk layer 16 is of P-type material and layer 18 is N-type. A dielectric mirror may overlie the electrode layer 20, as in the gate 41 in Fig. 5 which shows a "NOR" gate arrangement. A reference beam 47 is normally reflected as a beam 40 by a half mirror 50, but is extinguished if either of input beams A and B, incident via a half mirror 46, are pre-set. Two such gates, the output 40 of each providing the input A of the other, and with the beams B providing "set" and "reset" inputs provide a bi-stable, Fig. 6 (not shown). If each gate is  replaced by a like array of gates, formed on a single semi-conductor wafer, the bi-stable arrangement provides a stored image, e.g. in the output beam (40) as it is transmitted by the next half mirror, suitable for further optical processing, Fig. 7 (not shown). As described, laser beams are used and the image is coherent.
Patent GB-1273064-A (GB)
Title: Interconnection of a.c. systems using static converters
IPC: H02J3/36
Filed: 1969-08-07
Abstract: 1,273,064. Static converters. BROWN BOVERI & CO. Ltd. 7 Aug., 1969 [9 Aug., 1968], No. 39545/69. Heading H2F. Two A.C. systems A, B of different frequency are interconnected by a D.C. link including a static rectifier and static inverter and irrespective of the direction of power flow between the systems, it is arranged that, by selectively operating switches so that switches S A-B  S<SP>1</SP> A-B  are closed and switches S B-A , S<SP>1</SP> B-A  are open or vice versa, current will flow through the link in the same direction. Thus, one converter R1 will always be used as a rectifier -and therefore may employ uncontrolled semi-conductor diodes. The other converter R2 will always operate as an inverter, e.g. using thyristors and its operating frequency will be that of the system it is feeding into. Harmonic filter circuits FK are provided The -two systems must be of the same voltage or alternatively may be matched using a transformer.
Patent GB-1431955-A (GB)
Title: Injector for furnishing liquid from a low pressure source to a vessel at a higher pressure tobacco filler rod production
IPC: F04F5/24
Filed: 1973-08-21
Abstract: 1431955 Injectors; vapour power plant ORMAT TURBINES (1965) Ltd 21 Aug 1973 [5 Sept 1972] 39627/73 Headings F1E and F1Q A boiler injector comprises a housing 18 divided into upper and lower chambers 24, 25 by an annular trough 19 having a peripheral lip 26 over which condensate discharging from a pipe 28 flows into a flange 32 on the end of a nozzle 20 having a high-pressure vapour inlet 29. Flange 32 comprises a smooth curve which merges with the interior surface 31 of the nozzle and the condensate flowing over the flange forms a curtain in which the stream emerging from the nozzle expands and condenses and forms a converging stream of liquid which enters a combining tube 21 depending from the bottom of the housing 18 and followed by a diffuser 22. The upper chamber 24 is connected to a conduit 23 for low-pressure vapour which encloses the pipe 28. As shown the injector is in circuit with a boiler 11 feeding a turbine 14 discharging to a condenser 16. Condensate flows via the turbine bearings 49 to the pipe 28. The vapour from the condenser connected to the conduit 23 surrounding the pipe 28 prevents freezing in cold locations. The system as described operates with organic working fluid.
Patent GB-1199044-A (GB)
Title: Teaching Apparatus
IPC: G09B15/04
Filed: 1967-08-30
Abstract: 1,199,044. Teaching music. ALDA INSTRUMENTS Ltd. 30 Aug., 1967 [26 Sept., 1966; 20 Feb., 1967], No. 39737/67. Heading G5X. Apparatus for use in teaching music to a plurality of students comprises a control panel including a master keyboard, a plurality of student keyboards, a tone producing generator corresponding to each key of a keyboard, and a pair of lamps 25, 27, associated with each student keyboard, on the control panel. Each key (F 1  . . . F n ) on the master keyboard is associated with switches 12, 13 and each key (F 1  . . . F n ) on a student's keyboard is associated with switches 21, 22, 23. Depression of the master key F 1  will produce a tone F 1  via a speaker provided switches 14, 15 are closed, and via switch 13 will provide current to the switch 21 of each corresponding student key F 1 . If a student presses key F 1  the " correct " lamp 25 will be energized and the circuit including "incorrect " lamp 27 broken, and there will be no change in the output of the speaker. However, if a student presses the wrong key the incorrect lamp will be energized and a dissonant sound will issue from the speaker. In an alternative embodiment each key on the master keyboard and each key on each student keyboard is provided with a corresponding lamp on the control panel. This embodiment may be used for playing chords.
Patent GB-1155435-A (GB)
Title: Photographic Process for the Direct Production of Positive Images on Metal
Inventor: WAINER EUGENE
IPC: G03C8/06
Filed: 1966-09-06
Abstract: 1,155,435. Receiving plate for the silver salt diffusion transfer process. HORIZONS Inc. Sept.6, 1966 [Sept.7, 1965], No.39800/66. Heading G2C. In the silver salt diffusion transfer process the receptor sheet is an anodized aluminium surface free from any traces of sulphate and the image formed on the receptor sheet is sealed into the surface by boiling in a solution containing nickel acetate, cobalt acetate and boric acid or heating in hot water. The aluminium surface is anodized by (i) anodizing in dilute sulphuric acid and treating the anodized surface with oxalic acid (ii) anodizing in oxalic acid solution containing alkali metal oxalate e.g. an alkali metal double oxalate of Ti, Zr or T1 with or without niobium or tantalum hydrogen oxalate. The aluminium receptor sheet may be an alloy with Ag, Au, Pd, Pt, Ti, Zr, Nb Ta or Th. The anodized surface may be heated to 100C. The aluminium sheet may be nucleated with a solution of a water soluble Ag, Au, Pt or Pd salt followed by treatment with a reducing agent. The aluminium plate and the exposed emulsion may be hinged together with tape. The image may be toned before sealing.
Patent GB-1506917-A (GB)
Title: Dithiophosphate ester derivatives and their use for stabilizing organic material
IPC: C07F9/18
Filed: 1975-09-30
Abstract: 1506917 Dithiophosphate esters SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 30 Sept 1975 39983/75 Heading C2P [Also in Division C5] The invention comprises compounds I of the general formula wherein R 1  is alkyl, R 2  is an alkylene group, R 3  and R 4  are hydrocarbyl groups with the proviso that at least one of these groups is an alkaryl group, and n is an integer, preferably 1 or 2. They may be obtained by reacting a corresponding salt of the formula wherein M is a metal ion, e.g. Na, with an aralkyl halide of the formula wherein X is a halogen atom, e.g. Cl. The compound O<SP>1</SP>,O<SP>1</SP> - di - 1 - dodecyl - S - (3,5- di - t - butyl - 4 - hydroxy)benzyldithiophosphate is also prepared in an analogous manner for comparative purposes. The compounds (I) are useful as stabilizers of organic materials susceptible to oxidative deterioration, e.g. mineral oils, lubricating oils, fuels, functional fluids, and plastics, e.g. polypropylene, polyethylene and natural or synthetic rubbers.