baber/WOPTO huggingface dataset:
Patent GB-804415-A (GB)
Title: Two-way transistor electrical transmission system
IPC: H04B1/58
Filed: 1957-02-22
Abstract: 804,415. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd. Feb. 22, 1957 [March 29, 1956], No. 6049/57. Class 40 (4). A two-way repeater for interconnecting two lines ZL1 and ZL2 comprises two hybrid transformers T1 and T2 and two transistors TR1 and TR2 connected in grounded-emitter fashion; the base of transistor TR1 is coupled to the collector of transistor TR2 through the two series windings of transformer T1, the third (isolated) winding of transformer T1 is coupled to line ZL1, end corresponding couplings are made between the base of transistor TR2, the collector of transistor TR1, transformer T2 and line ZL2; each of the transformers can be substantially matched on the line side with the help of a balancing network R1, C1 or R2, C2 connected between the junction point of its series windings and a pole of a D.C. source, and overall power gain in both directions can be secured with a loss before amplification which is high with respect to the loss after amplification. Resistances R7 and R8 provide negative feedback for transistors TR1 and TR2 respectively and this effect can be increased for TR1 by choosing values for resistance R2 and capacitance C2 greater than those required to balance transformer T2. Low-frequency signalling currents by-pass the repeater through a path including inductances L1, L2 and condensers C5, C6. Specifications 708,247 and 744,555 are referred to.
Patent GB-672831-A (GB)
Title: Improvements in and relating to high frequency variable inductive tuning devices
IPC: H01F21/12
Filed: 1950-03-10
Abstract: 672,831. Inductances. MALLORY & CO., Inc., P. R. March 10, 1950 [March 17, 1949], No. 6055/50. Class 38 (ii). A variable high frequency inductance tuning device comprises a movable contact arranged to move over one or more fixed conductive members, characterized in that one fixed member is formed as a curved tapering strip, the end having the smallest cross-section being associated with the lowest frequency band, movement of the contact causing a change in the resonant frequency of the circuit to which the device is connected. The device comprises a series of conductive segments 25-39 and a curved tapering segment 10 having connected therebetween a series of flat spiral inductance coils 20-24 and 35 so as to form a continuous electrical circuit from terminal 45 to terminal 46. A contact member 14, rotatable by means of a shaft 15, is arranged to move over the segments 10, 25-29. Also rotatable with the shaft 15 is an element 31, which may be either of conductive non-magnetic material, or of magnetic material, which, as it moves, is arranged to affect the inductance of the coils 20-24 but not that of the coil 35. When the contact 14 is at approximately the position " X " the device will be tuned to a particular band of high frequencies (i.e. channel " 13 ") and as the contact 14 is rotated clockwise continuous tuning is made down to a lower band of frequencies (i.e. channel " 7 ") when the contact 14 will be at the end 13 of the segment 10. When it is now desired to tune to a further band of frequencies (i.e. channel " 6 ") the contact 14 is first moved to bridge the air gap 30. between the segments 10, 25, i.e. position " Y ". In this transitional position the element 31 completely shades the coil 20, which acts as a lumped inductance to accommodate the so-called " dead " range of frequencies between channels " 7 " and 6," thus reducing its inductance to a minimum. Further clockwise movement of the contact 14 over the segment 25 gives a vernier tuning adjustment in the channel " 6 " of approximately plus or minus 1.5 megacycles. Even further clockwise movement of the contact 14 will give tuning over lower channels down to channel " 2 " when the contact 14 will be over the segment 29. The coil acts as an unaffected lumped inductance together with coil 20 when making the transition from channel '' 7 " to channel " 6 ". Specification 672,830 is referred to.
Patent GB-115422-A (GB)
Title: Improved Catalytic Apparatus for the Production of Oxychloride of Carbon and other Substances.
Inventor: DARRASSE JEAN LOUIS
Filed: 1918-04-09
Abstract: 115,422. Darrasse, J. L. April 23, 1917, [Convention date]. Carbonyl chloride. - Catalytic apparatus for the production of carbonyl chloride and other substances consists of a lead U-tube of at least 900 mm. length of elliptical cross-section, the major axis of the ellipse being 180 mm. and the minor axis 100 mm. Inlet and outlet tubes 5, 7 are provided. The catalyst employed may be carbon such as charcoal, breeze, or animal charcoal, prepared chemically or not.
Patent GB-1163394-A (GB)
Title: Improvements in or relating to the Forming of Tantalum or Nobium Bodies
IPC: H01G9/04
Filed: 1968-02-08
Abstract: 1,163,394. Electrolytic capacitors. SIEMENS A.G. 8 Feb., 1968 [9 Feb., 1967], No. 6340/68. Heading H1M. [Also in Division C7] An electrolytic capacitor with metal electrodes or a capacitor in which a semi-conductor such as MnO 2  forms one electrode includes as an electrode a body of Ta or Nb, e.g. produced by sintering, on which a layer of oxide has been formed by anodic oxidation at 130‹ C. in a bath consisting of a glycol-water mixture containing 5 to 10% water and containing as a conducting salt KH 2 PO 4 , preferably in a concentration to give a phosphate ion concentration of 0À02 to 0À04 mole/Kg. of solution.
Patent GB-946635-A (GB)
Title: Spreadable plug for fixing purposes
IPC: F16B33/00
Filed: 1962-02-19
Abstract: 946,635. Screw-sockets. A. FISCHER. Feb. 19, 1962 [Feb. 18, 1961], No. 6381/62. Heading F2H. A screw-socket, expandable by the shank of the countersunk-head fixing-screw 8, has a conical flange 3 for receiving the screw-head and at least one longitudinal slot 1. The circumference of the flange of the synthetic plastics socket may be serrated at 3a, and the shank formed with two or more projections 4. A tapered bore receives the screw.
Patent GB-124308-A (GB)
Title: Improvements in and relating to Crates.
Inventor: BENSON FRED FRANKLIN
IPC: B65D25/06
Filed: 1918-04-15
Abstract: 124,308. Benson, F. F. April 15, 1918. Partitioned and cellular crates; lined and covered crates; lids and covers. - A crate for eggs &c. comprises a box 10, within which are arranged tiers of longitudinal partitions 14 separated by partitions 19, an inner removable cover 21 being also provided. All of these parts are made of stiff material, such as tin or sheet metal, covered on both faces with a cushioning of cloth &c., while the box 10 may be beaded at 11 and has an outer metal casing 13. The partitions 14, which may be removable, are connected by short transverse partitions 17 of cloth &c. adapted to bend about central lines, so that the partitions 14 may be folded against one of the walls of the box. The cover 21 is held adjustably in position by bolts 23 upon it engaging in vertically alined openings in the box-walls. The upper partitions may be removed for the accommodation of butter &c., the eggs in the compartments below being protected by the partitions 14.
Patent GB-1493841-A (GB)
Title: Shearing apparatus
IPC: B26B19/24
Filed: 1975-02-14
Abstract: 1493841 Shearing apparatus W R C GEARY 14 Feb 1975 [19 Feb 1974 21 Oct 1974] 6433/75 Heading B4B [Also in Divisions F2 and F1] A shearing handpiece, particularly for shearing sheep, comprises a toothed cutter 14 mounted on an oscillatable operating arm 12 for co-operation with a comb 16 fixed to a body 10, an hydraulic motor for actuating the arm and comprising a plunger 26 slidable in a cylinder 23 which is adapted to be connected to a remote power generator operable to impart successive pressure pulses to the hydraulic fluid so as to thereby actuate the cutter. The operating arm is pivoted on a pin 22 and urged downwardly by an adjustable compression strut 20 so as to maintain the cutters in shearing contact. The hydraulic motor operates in association with a return spring 32; in modifications, the spring may be replaced by a second hydraulic motor or a single double-acting motor. The coacting surfaces of the cutter and comb are lubricated via a flexible pipe 72 and passages 71, 73 formed in the arm. A shelf member 74, e.g. of P.T.F.E. is secured to the comb in order to facilitate movement of tool over the skin of the animal. The handgrip 101 of the device may be pivotally connected to the cutting section thereof so as to avoid vibrations being transmitted to the hand of the user; alternatively, the handgrip may be covered with a foam rubber cover contained within an outer tubular handgrip. The remote power generator comprises a piston 44, Figs. 5 and 6, reciprocable in cylinder 40 by means of a rotary eccentric 46, the cylinder being connected to a reservoir 80 of hydraulic fluid via a chamber 54, valve 67 and pipe 68, and the fluid being maintained at a constant pressure. In operation of the shearing device, the valve 67 is maintained open as shown in Fig. 6 by means of a handleoperated cam 58 acting on a plunger 56 slidable in the chamber 54 thereby causing the piston 44 to be held against the continuously rotating eccentric 46. When it is required to stop the shearing device, the lever 60 is actuated to close the valve thereby allowing the piston to be moved away from the eccentric by means of a spring 70 thereby stopping the hydraulic pulses. The generator is provided with four pulseproducing units as just described for actuating their respective shearing devices.
Patent GB-115044-A (GB)
Title: Improvements in and relating to Spacing and Feeding Devices, more particularly for use in connection with Cutting or Punching Metal Sheets or Bars.
Inventor: STIENING FREDERICK CHRISTIAN
IPC: B21D28/26
Filed: 1916-05-06
Abstract: 115,044. Stiening, F. C. May 6, 1916. Metal sheet feeds; punching.-In a machine for cutting or punching metal sheets or bars, the work is fed, through a distance determined by a templet, after each operation. The work 1, Fig. 1, to be operated on by punches 2 is held by a clamp 3 which is secured to racks 5 intermittently advanced by gears on the shaft 6. The driving shaft 15 rotates the crankdisk 19, thus reciprocating the sliding head 20 on which a Peau. cellier's parallel movement 26 is mounted. Links 25 are pivoted thereto at 26<1> and also to racks 12, 13 which are thus moved apart by the downward movement of the head 20, the actual movement of each depending on the position of a rack 33 upon which racks 31, 32 are closed by reason of gears 29, 30 and 10, 11 connecting them with the racks 12, 13. The intermittent rotation of the gear 10 is transmitted through the arm 9 and pawl 8 to the ratchet wheel 7 mounted on the shaft 6, so that the work is intermittingly advanced through distances depending on the position of the rack 33. This rack may be positioned by a handlever and quadrant, but is preferably positioned before each feed by means of a spacing-bar 59 carried bv a rack 53 intermittingly advanced by a gear 55, Fig. 3, shaft 42, and ratchet wheet 56. The wheel 56 is rotated by a pawl 57 on an arm 41 which is raised by a stop 47 on a bar 45 operated by a lever 44 and cam 43, Fig. 1. The arm 41 is connected to a gear 40 which, acting through a double rack 39, gear 38, shaft 50, and gear 51, reciprocates the rack 52 carrying a spring pawl 53 adapted to engage pins 60 on the spacing- bar 59. At the limit of the upward movement of the arm 41, the pawl 53 is raised by a fixed wedge 61 so that, when parts return by reason of the weighted lever 48 on the shaft 50, the rack 52 moves back till the pawl engages the next stop, this distance determining the distance the arm 41 falls and hence the extent of the next advance movement of the arm 41, ratchet wheel 56, &c., and also determining, through the gear 38, the position of the rack 33 and hence the distance through which the work is advanced. Spacing-bars.-The bar 59 has two rows of pins 60, either row being employed by adjusting the pawl 53 laterally by means of a bolt and slot 63, or the pawl may be raised by a cam 64 when the feed is being regulated by hand.
Patent GB-965998-A (GB)
Title: Phosphorus-containing heterocyclic esters
IPC: C07F9/6541
Filed: 1963-02-19
Abstract: 965,998. Insecticidal compositions. FARBENFABRIKEN BAYER A.G. Feb. 19, 1963 [Feb. 19, 1962], No. 6647/63. Addition to 965,997. Heading A5E. [Also in Division C2] An insecticidal composition comprises a solid or liquid diluent or carrier and a phosphoruscontaining 3 - hydroxy - 1,2 - benzisothiazole derivative of the formula wherein R 1  and R 2 , which may be the same or different, are unsubstituted or substituted C 1 -C 4  alkyl or alkoxy radicals or alkylamino, dialkylamino or aryl radicals, X is an oxygen or sulphur atom and Y and Y 1 , which may be the same or different, are hydrogen, chlorine, bromine or iodine atoms or nitro, alkyl, alkoxy or alkylmercapto radicals or may, together with the benzene ring depicted represent a fused benzene nucleus (see Division C2). Specified carriers or diluents are talc, chalk, bentonite, clay, water (if necessary with an emulsifier), alcohols, ketones, liquid hydrocarbons and dimethyl formamide. Known insecticides and/or fertilizers may also be present.
Patent GB-580677-A (GB)
Title: Improvements in or relating to gas-turbine plants
IPC: F02C7/36
Filed: 1945-03-16
Abstract: 580,677. Gas turbines. SULZER FRERES SOC. ANON. March 16, 1945, No. 6687. Convention date, March 18, 1944. [Class 110 (iii)] In a gas turbine plant in which power gas is generated in a combustion chamber fed with air by a turbine-compressor combination working in a closed circuit and is led to a power turbine, which discharges to the atmosphere, the power generated by the power turbine is varied by varying the basic pressure in the closed circuit by means of one or two additional compressors driven by the power turbine. The power gas generator comprises compressors 1, 3, surface heater 8, turbine 10 and heat exchanger 4. Part of the air compressed passes to a burner 14 of the heater 8 and the products of combustion drive a power turbine 16 geared to a ship's propeller 21. This is the plant for low power and make-up air is drawn in at atmospheric pressure through a non-return valve 37. For higher powers, one or both compressors 23, 24 geared to the power turbine are brought in by means of hydraulic or other couplings 25, 26 and these deliver air at, say, four and eight atmospheres to the cooler 12 and the inlet of compressor 1. Valves 34, 35, 36 are provided for the change-over. An electric starting motor 22 is provided which can be used as a generator to take up'excess power. The power turbine may comprise two units each driving one of the compressors 23, 24.
Patent GB-710587-A (GB)
Title: Improvements relating to the sizing of textiles
IPC: D06M13/368
Filed: 1952-03-14
Abstract: A textile size comprises an aqueous solution of gelatine containing from 0.5 to 30, preferably from 2 to 6, per cent. by weight of at least one salt of a saturated aliphatic hydroxyamine, containing up to 6 carbon atoms in its molecule, with sulphuric acid, nitric acid or a lower saturated aliphatic carboxylic acid, e.g. acetic acid. The hydroxyamine may be mono-, di- or triethanolamine or dimethylaminoethanol.
Patent GB-1509691-A (GB)
Title: Silylation process and organosilicon compounds
IPC: C07F7/18
Filed: 1976-02-20
Abstract: 1509691 Disilyl hydantoins; silylation process DOW CORNING Ltd 17 Feb 1977 [20 Feb 1976] 6719/76 Heading C3S Compounds containing -OH or -NH groups attached to C or Si are silylated by reaction with a compound wherein each R is H, CH3 or C6H5 and R<1> is a C1-10 hydrocarbyl radical. The compounds of Formula I in which at least one R is not H are claimed per se. In Example 1 hydantoin is heated with hexamethyldisilazane in CH2Cl2 at 40‹ C. i.p.o. H2SO4; the product is used to silylate 2 : 6-di-sec-butyl-phenol. In Examples 2-4 dimethylhydantoin is heated with hexamethyldisilazane in toluene at 120‹C.; the product is used to silylate n-octanoic acid, 2- ethyl-hexanoic acid, and n-octanol.
Patent GB-180093-A (GB)
Title: Improvements in or relating to electric fuses and to holders for the same
IPC: H01H85/26
Filed: 1921-03-01
Abstract: 180,093. Kluijtmans, J. J. J. M. March 1,1921. Fusible cut-outs.-Relates to magazine fuses of the type in which the fuse wire is combined with a supporting flexible cord of refractory material, the reserve portion of the fuse-cord being wound on a reel. The active portion of the fuse-cord a is stretched between contact clips c upstanding from a porcelain bridge-piece d carrying a support for the reel b. A groove dx is formed in the member d to receive the cord. The reel is carried between lugs c which are secured to the member d and may be formed integrally with the adjacent clips c and terminal plates f. The clips c are preferably flared in the direction of the reel to facilitate pulling the cord through them. The fuse wire is preferably of copper and the refractory support upon which it is wound may be asbestos fibre or a wire coated with insulating enamel.
Patent GB-130106-A (GB)
Title: Improved Means for Regulating the Pressure in the Gas Mains of Coke-ovens and the like.
IPC: C10B27/06
Filed: 1918-04-23
Abstract: 130,106. Simon-Carves, Ltd., and Preston, J. T. E. April 23, 1918. Regulating exhaustion.-A valve device for maintaining a constant pressure in the gas mains of coke ovens is, according to the Provisional Specification, applicable for controlling the speed of the exhauster. As adapted for regulating pressure the device comprises a valve in the main actuated by a. pair of solenoids controlled by a switch actuated by a liquid sealed bell, diaphragm or piston so that an increase in pressure causes an increased opening of the valve. The cores j<1>, k<1> of the solenoids j, k are connected by wires j<2>, k<2> to a quadrant m held in its mid position by a spring r attached to an arm m<1> and connected by a link to an arm o on the valve p. The solenoids are connected to a battery and to switch contacts g, h adapted to work in conjunction with a switch arm c connected to the battery and actuated by a bell a dipping into an oil seal p and subject to the pressure in the main.
Patent GB-331527-A (GB)
Title: Improvements in and relating to wrapping machines and the like
IPC: B65B57/06
Filed: 1929-03-02
Abstract: 331,527. Baker Perkins, Ltd., and Booth, J. H. March 2, 1929. Packeting by wrapping-up.-Wrapping-machines, which may be of the type described in Specifications 215,902 or 326,831, are arranged so that, the presence of a wrapper in the wrapping position prevents the actuation of an electrical or pneumatic relay device adapted to cut out the machine drive. In the form shown in Figs. 1 and 5, a detector comprising a spring wire 7 is mounted immediately adjacent to the plane which a wrapper 8 should occupy before being introduced, with an article, into a pocket in a wrapping wheel by the devices described in Specification 326,831. The detector is coiled to form a hinge loop about a terminal screw 13 on an insulating block 12, and an adjusting screw 15 engages a second loop 14. The complementary part of the detector is constituted by the oscillating fingers 16, connected to a vacuum, which assist in drawing the wrapper into a pocket. If a wrapper is present, the parts 7, 16 do not contact and the machine works normally. If no.wrapper is present, contact is established as shown in Fig. 5, and a circuit is completed to energize an electromagnet 18. A hinged armature 19 is attracted into the position shown and rocks a switch-arm 21 so that contact is broken between the terminals 22, 23 and the machine drive is stopped. The detector circuit may be completed by contacts 25, 26 when the switch-arm is in the "in" position, and broken as shown in the " out " position. The switch-arm may be re-set by manually operable means. The detecting part 7 may comprise two insulated members adapted to be bridged by the member 16. In a modification, the degree of air pressure in the wrapper engaging fingers may be used to actuate the relay device through electrical or pneumatic means. A sensitive diaphragm or mercury balance is arranged to have a maximum displacement when the degree of vacuum is highest due to the effective engagement of a wrapper. If, however, the vacuum orifices are not closed by a wrapper the smaller displacement of the detecting means is used to cut out the drive and, if necessary, apply a brake.
Patent GB-231466-A (GB)
Title: New or improved process for the absorption of gases and vapours
IPC: B01D53/02
Filed: 1925-03-13
Abstract: Gases or vapours are absorbed by means of active charcoal made according to the parent Specification.  The absorbed gases may be recovered by heating the charcoal under reduced pressure or by distillation with steam.  The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the use, for absorbing gases or vapours, of any charcoal obtained by carbonization in the presence of alkaline salts, such as potassium carbonate, sulphide or polysulphide, either alone or in mixture.  This subject-matter does not appear in the Specification as accepted.
Patent GB-732117-A (GB)
Title: Improvements in the manufacture of solutions of polyacrylonitrile
IPC: D01F6/18
Filed: 1952-03-17
Abstract: Polyacrylonitrile is dissolved in perchloric acid, which is preferably used in a concentration of less than 50 per cent by weight in water, but excluding higher concentrations having a destructive effect on the polymer.  The solutions are used in the preparation of fibres and films.
Patent GB-925737-A (GB)
Title: Improvements in and relating to combustion devices for heating fluids
IPC: B60H1/22
Filed: 1962-02-22
Abstract: 925,737. Air heating apparatus. WEBASTOWERK G.m.b.H. Feb. 22, 1962 [March 30, 1961], No. 6994/62. Class 64 (1). In a fluid-fuel combustion device for heating fluids comprising a burner 13, a tubular combustion gas channel 1, an annular combustion gas channel 2, and a surrounding channel 20 in which heat transfer medium is conducted; the annular channel 2 is provided with longitudinal ribs 5, 6, 7 and 8 which form mutually parallel channel sections 9, 10, 11 and 12, the channel sections 9 and 11 having closed ends nearest the burner whilst 10 and 12 have open ends, the combustion gases thus making two passes through the annular channel 2. As shown, a fuel-air mixture is fed through pipe 14 communicating with annular inlet 15 opening into tubular combustion gas channel 1 where combustion takes place. Combustion gases then pass through the open ends of parallel channels 10 and 12 and then double back along channels 9 and 11 where they pass to central channel 18 through holes 16 and 17. The internal diameter of annular channel 2 is two-thirds inch to seven-tenths inch of the external diameter and the length is at least three times its internal diameter. The shape of casing 19 need not be cylindrical. This device is said to be suitable for heating systems in motor vehicles.
Patent GB-1495335-A (GB)
Title: Sensitive photothermographic material
IPC: G03C1/498
Filed: 1975-02-19
Abstract: 1495335 Polybromo compounds EASTMAN KODAK CO 19 Feb 1975 [19 Feb 1974] 7007/75 Heading C2C [Also in Division G2] 2 - Tribromomethyl - sulphonylbenzothiazole is prepared by reacting bromine (in NaOH solution) with a solution of 2-carboxymethylmercaptobenzothiazole and sodium bicarbonate. 2,4 - Bis(tribromomethyl) - 6 - methyltriazine is prepared by heating a mixture of 2,4,6-trimethyltriazine and sodium acetate in acetic acid at 70 degrees while adding bromine. These compounds are used as background stabilizing agents in photothermographic materials.