baber/WOPTO huggingface dataset:
Patent GB-533946-A (GB)
Title: Improvements in holders for piezo-electric crystals
IPC: H03H9/09
Filed: 1939-11-21
Abstract: 533,946. Piezo-electric crystal mountings. GENERAL ELECTRIC CO., Ltd., CLARK, F., and HEARNE, A. E. Nov. 21, 1939, No. 30473. [Class 40 (v)] A housing for a piezoelectric crystal has a metal lid 8 fastened by screws 7 engaging metal inserts such as 2 in the insulating base, some of which also serve to support contact plugs 9, 10. Plug 9 is connected by means of a resilient metal spider 14 to the lower electrode plate 18 of the crystal 16 the upper electrode plate being connected to plug 10 by means of the lid 8, screw 7 and insert 2.
Patent GB-1023070-A (GB)
Title: Improvements in or relating to the manufacture of semi-conductor materials
IPC: H01L21/205
Filed: 1964-08-04
Abstract: 1,023,070. Etching. SIEMENS-SCHUCKERTWERKE A.G. Aug. 4, 1964 [July 17, 1963], No. 30480/64. Heading B6J. A process of etching the surface of a semi-conducting material such as silicon, indium, arsenide or germanium comprises contacting the surface at a temperature not less than 50‹ C. below and not more than 500‹ C. below the melting- point of the semi-conducting material, with a gas mixture comprising hydrogen, a hydrogen halide such as hydrogen chloride, and a halogen compound of the semiconducting material or a constituent thereof such as silicon tetrachloride or arsenic chloride. The halogen compound may be formed by reacting the hydrogen halide with the semi - conductor material. The apparatus for carrying out the process, Fig. 1, includes a quartz tube 1 connected to a gas supply 2. A quartz tube 5 within tube 1 has a plane seal 6 on which is mounted a holder 7 for receiving the heating bar 8 of a material such as silicon or graphite. The semi-conductor wafer 9 to be etched rests on the bar 8. A highfrequency coil 11, movable longitudinally of the tube 1, is used to heat the bar 8 and the wafer 9. Hydrogen and the hydrogen halide gases enter via pipes 17 and 18 respectively, and an evaporator 13 provides the halogen compound gas. In an alternative embodiment, Fig. 2, the rod 25 of semi-conducting material is formed with a number of integrally joined wafers by cutting slots 26. All the wafers are etched at the same time and after cooling in a current of hydrogen, the wafers are separated from one another.
Patent GB-396677-A (GB)
Title: Improvements in or relating to coin delivery apparatus
IPC: G07F5/24
Filed: 1931-11-04
Abstract: 396,677. Coin-freed apparatus; money-delivering apparatus. A. E. G-FAHRKARTENDRUCKER GES., Hennigsdorf, Osthavelland, Germany. Nov. 4, 1931, No. 30598. Convention date, May 9. Void [Published under Sect. 91 of the Acts.] [Classes 27 and 116.] In a money-delivering apparatus, the container from which the coins are ejected is brought within the range of action of the delivery-device by an inserted coin. The coin 2 in descending a shoot 1 moves a pivoted lever 3 against a spring 4 so that an arm 6 on the lever is withdrawn from contact with a lug 7 on the coin-container 8, which thereupon descends in guides 18 on to a wheel 15. When the latter is rotated, a projection thereon ejects the lowermost coin through an aperture 10 to a shoot 17 ; towards the end of the rotation a rod 14 is lowered to raise an end of a pivoted lever 12 engaging members 11, so that the container 8 is raised to a position in which it is supported by the arm 6, which has resumed its position under the influence of the spring 4. An inserted coin may be passed to a testing device from which it passes to the appropriate shoot 1, whilst the levers 3 may be so constructed that each affects one or more containers.
Patent GB-428140-A (GB)
Title: Improvements in or relating to the construction of road surface signs
IPC: E01F9/06
Filed: 1933-11-03
Abstract: 428,140. Road-surface signs. FOOTE, E. J. W. S., Pembury Court, OWEN, G. W., Glebe House, both in Pembury, Kent, and PLATTS, H. C., 68, Victoria Street, London. Nov. 3, 1933, No. 30638. [Class 3 (ii)] [See also Group X] Road-surface signs of the kind in which the letters are distorted so that when viewed within a predetermined distance by the driver of an approaching vehicle they appear to stand erect on the road surface in substantially normal proportions, are formed by inlaying in the road surface rectilinear blocks of a colour contrasting with that of the road surface and constructed of three shapes, namely, narrow and wide rectangular blocks and trapezoidal blocks, each letter of the sign being made up of two or more blocks and each block being laid with its major axis in or substantially in the direction of the road. As shown, the sign is built up from blocks 19, 20, 21, 22. The blocks may be pre-formed or formed in situ in the road surface by cutting cavities and filling same with a setting composition. Preformed blocks may be secured to the surface by prongs on their underside or by pins passing through holes therein. Alternatively, they may be set in concrete or a bituminous cement.
Patent GB-1026154-A (GB)
Title: Allantoin-pantothenate compounds
IPC: A61K8/49
Filed: 1964-08-04
Abstract: The invention comprises compounds consisting of allantoin or a salt thereof chemically combined with pantothenic acid or a salt thereof. Compounds are prepared by mixing allantoin with calcium pantothenate, adding hot or cold water or alcohol to the mixture and then drying the mass with heat; by mixing freshly prepared pantothenic acid with allantoin, with aluminium chlorhydroxy allantoin, and with aluminium hydroxy allantoin, and drying the products with heat; and by mixing pantothenic acid solution with allantoin and calcium carbonate, evaporating the slurry under vacuum with heat, and then cooling.
Patent GB-1180365-A (GB)
Title: Device for Terminating the Fuel Supply during Overrun Conditions in Automobile Engines
IPC: F01L13/00
Filed: 1968-06-27
Abstract: 1,180,365. Controlling vehicles. ROBERT BOSCH G.m.b.H. 27 June, 1968 [28 June, 1967], No. 30654/68. Heading B7H. [Also in Division F1] A device for terminating the fuel supply in a spark-ignition I.C. engine of an automobile when the engine is being driven by the road wheels, comprises a solenoid 3, three switches 7, 8, 9 and a fuel quantity regulating member, e.g. the control rod 2 of a fuel injection pump 1 or a valve downstream of the float chamber of a carburetter. When all three switches are actuated, the solenoid is energized and thereby moves the control rod 2 against the action of a mixture regulator (not shown) to terminate the fuel supply to the engine. The switch 7 closes when a butterfly valve 10 in the air induction pipe 11 moves into its idling position, the switch 8 closes when any gear in the gear-box is engaged, and the switch 9 closes when the clutch is engaged. The device may instead operate with a holding current which is interrupted when all three switches are opened.
Patent GB-851232-A (GB)
Title: Improvements in perforating machines whose punches are driven by electro-magnets
IPC: B21D28/00
Filed: 1957-10-01
Abstract: 851,232. Punching. COMPAGNIE DES MACHINES BULL. Oct. 1, 1957 [Oct. 5, 1956], No. 30708/57. Class 83 (4). [Also in Groups VIII and XXXV] A perforating machine for punching perforations in a sheet, record card or tape comprises in the Fig. 1 embodiment a plurality of punches 42 each driven by a respective, electromagnet having a fixed field-core and a movable armature 40, and a corresponding plurality of mechanisms 43 ... 48 each comprising a compressible resilient member operable, upon-movement of the armature when the electromagnet is energized, to transmit a driving force from the armature to the associated punch; the resilient member is so constructed that when a predetermined resistance is set up to movement of the punch during closing of the air gap of the electromagnet the energy supplied by the latter is stored at least partially by compression of the member and that when the resistance decreases at or near the end of the armature movement, due to the punch having perforated the sheet or tape, the member expands and transfers to the punch the energy stored previously during the armature movement. As shown, the resilient member comprises a spring 43 compressed between a collar 45 fast with the punch 42 and an end 47 of a hollow cylinder 44; an abutment 46 limits compression of the spring 43, and a spring 49 returns to the rest position the armature and punch upon de-energization of the electromagnet. The abutment 46 may be omitted if the spring 43 after a predetermined compression has its turns contiguous to transmit directly the armature force. In the embodiments of Figs. 4 and 6 the resilient member is instead extensible, comprising springs, 95, 100, respectively tensioned between the armature 91 and a pivoted lever 86, and two pivoted levers 102, 104; limitation of the spring's extension is provided by an armature pin 90 slidable in a slot 93 of a link 88b pivoted on the lever 86, and by engagement of a flange 114 of the lever 104 with a part 115 of the lever 102. Specifications 190,187 and 375,884 are referred to.
Patent GB-1426478-A (GB)
Title: Non-dispersive infrared fluid analyzer with compensation of absorptive and mechanical effects of ambient conditions
IPC: G01N21/37
Filed: 1973-06-28
Abstract: 1426478 Infrared gas analyzer MINE SAFETY APPLIANCES CO 28 June 1973 [29 June 1972] 30837/73 Heading G1A In a conventional infrared gas analyzer, for determining the amount of carbon monoxide presence in a gas sample 7, an extra detector D 2  and a pair of gas filter chambers 17 are employed as shown to provide, after calibration, a signal proportional to the amount of interfering water vapour present in the gas sample 7. So by subtracting the signal outputs from detectors D 1  and D 2  a signal corrected for interference from any water vapour present in the sample is obtained.
Patent GB-1112966-A (GB)
Title: Apparatus for investigation of material by vaporisation,ionisation and ion current measurement
IPC: H01J49/14
Filed: 1965-07-20
Abstract: 1,112,966. Ion source. VARIAN MAT G.m.b.H. 20 July, 1965 [30 July, 1964], No. 30853/65. Heading H1D. In an electron impact ion source for a mass spectrometer a sample vaporization cell 4 is located in a recess 5 in the ionization block 2 and is thermally insulated, windows 4b and 2b providing communication between the vaporization chamber 4a and the ionization chamber 3. The vaporization cell has a heater 7 and a cooling jacket 6 and contains a heater coil 8 into which a vessel 8 carrying a sample is introduced. The vessel 8 is pushed forward by a magnetically operated plunger 16 from a magazine 11 and the magazine can be displaced for the introduction of a different sample vessel 8 by means of a valve piston 14. Each vessel 8 has a magnet 17 for holding the vessel at the end of the plunger 16.
Patent GB-361529-A (GB)
Title: Improvements in and relating to apparatus for transmitting indications to a distant point
IPC: G01R17/08
Filed: 1930-10-15
Abstract: 361,529. Electric signalling systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Electricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 15, 1930, No. 30902. Convention date, Oct. 16, 1929. [Class 40 (i).] In a remote indicating system of the type in which an equalizing system restores the primary indicator to a zero position, the current passing through the external circuit is used to control the equalizer, an impedance network being fitted to provide a time lag in the circuit. The primary indicator 1, through its control spring 2 moves the contact 5 into engagement with the contact 6. Current from battery 13 builds up slowly in the circuit, the lag being provided by inductances 11, resistances 12 and condenser 10. Before the steady current level is reached, the equalizing instrument 3 receives sufficient energy to zeroize the pointer of indicator 1 breaking contacts 5, 6. This current is actually a little in excess of the required balancing amount and consequently the current measured by remote indicator 15, which may be an integrating instrument, is too large. The circuit being broken the current flow tends to fall and when the balancing level has been passed 5, 6 again make and the current again builds up. This action continues giving a'varying indication 15 the average of which represents the actual reading required. The equalizing system has an initial bias, provided by the spring 8, to enable small movements of 1 to be accurately measured and by increasing the strength of 8, a central zero position can be made on indicator 15, enabling variations on both sides of this zero to be measured. The spring 8 also enables faults on the line to be detected, as should the current cease, the indicator 15 would fall back to its own, instead of to the predetermined, zero position. A relay may be employed to repeat the movements of 5 over the control circuit.
Patent GB-383404-A (GB)
Title: Improvements in or relating to pneumatic machines for rivetting and like operations
IPC: B21J15/18
Filed: 1931-11-07
Abstract: 383,404. Riveting. JACKSON, C. E. and HUNT, T. J., 30, Paradise Street, Birmingham. Nov. 7, 1931, No. 30909. [Class 83 (iv).] The moving tool of a pneumatic riveting machine is operated through toggle linkage from a hydraulic cylinder, which is moved axially to bring the tool nearer the work before air under pressure is admitted thereto. The main cylinder g is moved axially by a handwheel m being guided by rods u and carrying a screw-threaded spindle v. A further preliminary movement of the tool a is then effected by introducing air into an auxiliary cylinder o to straighten toggles n, n<1>. At the end of their movement a plunger s is depressed to open a valve t and admit air to the main cylinder g to effect the working stroke through toggle levers d. In modifications the cylinder o and levers n, n<1> are dispensed with and the axial movement of the cylinder g alone provides the initial movement of the tool a. The hand-wheel m may be replaced by a further auxiliary cylinder.
Patent GB-1321367-A (GB)
Title: Latching gate for adaptive braking system
IPC: B60T8/1763
Filed: 1971-07-01
Abstract: 1321367 Antiskid braking systems BENDIX CORP 1 July 1971 [15 Sept 1970] 30916/71 Heading F2F A vehicle antiskid braking system of the type disclosed in Specification 1,208,843 and comprising means such as a generator 40 producing a D.C. voltage proportional to wheel rotational speed, a differentiating circuit 42 generating a second signal proportional to wheel acceleration, comparator 10 generating a third signal when the second signal attains a reference level, means responsive to change in at least one of the two signals for generating an error signal and a modulator 35 responsive to the latter for modulating the braking force is also provided with means responsive to the third signal, for inhibiting the error signal, in the form of a latching gate opened by the third signal but closed in its absence. As shown in Fig. 1 AND gate 25 generates an output whenever inputs 25a, 25b are energized, that is when wheel deceleration exceeds a G 1  reference level and the slip computer 22 generates an output. The AND gate output is applied via an amplifier 26 to a modulator 35 to reduce braking pressure at a controlled wheel and the amplifier output is also applied through an OR gate 20 to the slip computer 22 and to an electronic switch 12 to cause a G 2  reference level of acceleration to be applied to the comparator 10 so that the signal to modulator 35 is latched on once it is generated until the wheel accelerates to the G 2  reference level. In Fig. 2 comparator 10 is comprised of transistors 44, 45 differentially connected and a diode 51 acts as electronic switch 12.
Patent GB-629771-A (GB)
Title: Improvements relating to spring upholstery
IPC: A47C27/04
Filed: 1947-11-21
Abstract: 629,771. Spring-upholstery. JOSEPH, J. Nov. 21, 1947, No. 30937. [Class 52 (iv)] Rows of upholstery springs are inserted in elongated pockets 6 formed in the encasing fabric 3 there being recesses between adjacent rows which are filled with stuffing material 8 to maintain the springs out of contact on compression.
Patent GB-688991-A (GB)
Title: Improvements relating to electrical storage batteries
Inventor: HERSCH PAUL
IPC: H01M50/571
Filed: 1950-12-20
Abstract: 688,991. Batteries. MOND NICKEL CO., Ltd. Dec. 18,1951 [Dec. 20, 1950], No. 31050/50. Class 53. The rod 5 connecting the negative plates of an alkaline accumulator with the terminal 6 is kept from contact with the surface of the electrolyte by an insulating sleeve 12 which may be made of ebonite or polystyrene.
Patent GB-895864-A (GB)
Title: A broad spectrum antibiotic flavofungin and process for the production thereof
Filed: 1958-09-29
Abstract: <PICT:0895864/IV (b)/1> <PICT:0895864/IV (b)/2> A broad spectrum antifungal antibiotic flavofungin is obtained by cultivating a streptomyces strain streptomyces SA-IX (Debreen University) or a flavofungin-producing mutant or variant thereof, in an aqueous nutrient medium therefor under aerobic conditions. The medium is one suitable for the culture of streptomyces in general, e.g. one containing glucose, peptone, magnesium sulphate, sodium mono-hydrogen phosphate and potassium dihydrogen phosphate. The pH is 6 to 8, the temperature 25 DEG C to 29 DEG C. and duration 80-90 hours. Flavofungin is recovered from the whole broth or the separated mycelium by solvent extraction with a water-immissible solvent.  In the case of the mycelium, a water-miscible solvent such as methanol may be used.  Prior to the extraction anti-foam agent may be removed from the broth by treatment with a solvent such as chloroform which is a non-solvent for the flavofungin.  It may be purified further by recrystallising it from a water-miscible organic solvent, e.g. aqueous aliphatic alcohol having from 1 to 4 carbon atoms. p Flavofungin is a yellow substance soluble in glacial acetic acid, in pyridine, in dimethyl formamide; fairly-soluble in alcohols such as methanol and ethyl acetate, sparingly soluble in water and chloroform and practically insoluble in ether, petroleum ether, carbon disulphide, hexane and benzene; contains 64.9% carbon, 8.4% hydrogen and 26.7% oxygen; the ultraviolet absorption in ethanol shows maxima at 262 and 368 mm  and a plateau at 233 mm ; the infra red absorption characteristics are shown in Fig. I; [a ]D20= -93 to -94 (in pyridine); treated with acetic anhydride in pyridine, it forms an acetyl derivative of melting point 141 DEG C.-142 DEG C.; treated with hydrogen in the presence of a catalyst it forms a hydrogenation compound of melting point 149 DEG C.-151 DEG C. which is inactive biologically; treated with bromine in ether solution it forms a brominated compound; it is unstable in air and oxygen.
Patent GB-670476-A (GB)
Title: Improvements in and relating to methods of resolving constant boiling mixtures of chlorosilanes by reaction with a phenol
IPC: C07F7/20
Filed: 1949-12-05
Abstract: Tetra-aryl orthosilicates and trimethylaroxysilanes are obtained by reacting at an elevated temperature a constant boiling mixture of silicon tetrachloride and trimethylchlorosilane with a monohydric phenol free of substituents reactive towards the chlorosilanes.  The reaction temperature may be from 100 DEG  to 350 DEG  C.  The products may be separated by distillation.  The phenol may contain the substituted or unsubstituted phenyl, naphthyl or biphenyl radical.  Specific phenols mentioned are phenol, hydrocarbon-substituted phenols, e.g. the isomeric cresols, ethyl phenols and cyclohexyl phenols, naphthols, alkoxyphenols, e.g. methoxy, ethoxy, and butoxy phenols, aroxy phenols, e.g. phenoxy and naphthoxy phenols, alkaroxy phenols, e.g. toloxy, xyloxy, and ethylphenoxy phenols, alkaroxy phenols, e.g. benzyloxy and phenylethyloxy phenols, ketophenols, cyanphenols, nitrophenols, aldehydic phenols, guaiacol and phenols substituted with heterocyclic groups.  A number of detailed examples are given. Hexamethyldisiloxane is prepared by treating trimethylphenoxysilane with dilute aqueous alkali, or by heating trimethylphenoxysilane with dilute hydrochloric acid and adding alkali to neutralize the reaction product.  Trimethyl silicon chloride is prepared by treating trimethylphenoxysilane with an organic acid halide.ALSO:A constant boiling mixture of trimethylchlorosilane and tetrachlorosilane is resolved by reacting the chlorosilanes at an elevated temperature with a monohydric phenol free of substituents reactive towards the chlorosilanes, and separating the aroxysilanes so produced by distillation.  A list of suitable phenols is given.
Patent GB-922218-A (GB)
Title: Improvements in and relating to mechanical handling mechanism
Inventor: KENNETT JOHN ENGLAND
IPC: B66F9/16
Filed: 1958-09-30
Abstract: 922,218. Earth excavating equipment. KENNETT HANDLING EQUIPMENT Ltd. Dec. 30, 1959 [Sept. 30, 1958], No. 31245/58. Class 68 (1). [Also in Group XXX] A frame a, b, c is provided with holes d, g h, j, k, m and n which enable it to support any one of a number of different load-handling tools, and to be connected alternatively to either an hydraulically actuated parallelogram linkage extending forwardly of a tractor or, by means of a detachable mast assembly o (Fig. 3), to the three-point power lift links at the rear of a tractor. The tool may comprise a bucket or scoop (not shown) mounted on rigid arms bolted to the frame and adapted to be tipped by means of drag links connected between the bucket and hydraulically-operated drop arms. Specification 807,892 is referred to.
Patent GB-773195-A (GB)
Title: Improved wired broadcasting systems and apparatus for television
Inventor: MOULTON ERIC WALTER
IPC: H04N7/10
Filed: 1953-11-13
Abstract: 773,195. Television distribution systems. COMMUNICATIONS PATENTS, Ltd. Feb. 11, 1955 [Nov. 13, 1953], No. 31551/53. Drawings to Specification. Class 40 (4). In a television distribution system in which two programmes are distributed on adjacent cables, one cable carrying a carrier and its. upper side-band and the other cable carrying a carrier and its lower side-band, and where there is substantial overlap between sidebands, frequency discriminating circuits are inserted at suitable points to prevent mutual interference. As described, each cable includes series connected rejector circuits tuned to the frequency of the carrier on the adjacent cable. These may be connected in the "drop-in" leads or in the main distribution system. The frequency discriminating circuit may instead be of the bridged T-type and may be inserted in front of repeaters in the system. Preferably the carrier spacing is an odd multiple of half the line scan frequency. The cables may carry the audio signals in the usual manner. Two programmes per cable may be distributed, using two spaced carriers on each cable and arranging for the upper side bands of each carrier on one cable to overlap respectively the lower sidebands of each carrier on the other cable. Separation of the programmes on a single cable would then be effected by means of simple broadly-tuned filters. Specification 659,622 is referred to and Specification 723,024 is referred to in the Provisional Specification.