baber/WOPTO huggingface dataset:
Patent GB-604447-A (GB)
Title: Radio location system
IPC: G01S13/42
Filed: 1945-05-16
Abstract: 604,447. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 16, 1945, No. 12366. Convention date, Dec. 24, 1943. [Class 40 (vii)] In a radiolocation system of the pulse-echo type employing a switched-aerial system giving overlapping directive. patterns and a cathoderay tube giving a directional indication dependent upon the relative amplitudes of the echo pulses received during alternate switching periods, a sine wave derived from the echo pulses is fed to one deflection system of the tube in phase with a second sine wave which is fed to the other deflection system. As shown in Fig. 1, the antenna system is associated with the transmitter TR and comprises two pairs of antennµ, one pair U, D providing patterns overlapping in a vertical plane and the other pair R, L providing such patterns in a horizontal plane. The four antennµ U, R, D, L are connected to the transmitter TR successively by cam switches 17, 18, 19, 20 operated by a motor SM driven by a 60 c/s. A.C. supply. The energy radiated comprises a carrier modulated by pulses produced by a pulse generator KP. The receiver RE feeds the echo pulses to a detector 26, the output of which is split between parallel resistors 6 and 8 feeding condensers 34 and 37. Cam-operated switches 28, 29 closed synchronously with the switches 20, 18 are inserted between condensers 37, 34 and resistors 8, 6 so that the condensers receive charges dependent upon echoes produced by the energy radiated by the antennµ R and L respectively. A double-pole camoperated switch 38 connects the condensers 34, 37 alternately, and in synchronism with the closing of switches 29, 28, to an amplifying valve 39 whereby the anode voltage of the valve rises and falls in accordance with the difference in the values of the charges held in the condensers 34, 37, producing the square wave output 41. This output is converted into a 60 c/s. sine wave 43 by a tuned circuit TC and this sine wave is applied to the horizontal deflection system 46 of tube C.R. A 60 c/s. sine wave 49 derived from the A.C. supply is fed to the vertical deflecting system 48 through an amplifying valve 52 and a phase-shifter 53. The ratio of the amplitudes of the sine waves 43, 49 is kept constant by controlling the gain of amplifier 52 by means of an A.V.C. diode DI connected to the output of the receiver RE. Fig. 3a and Figs. 3b, 3c and 3d (not shown) illustrate the display obtained in the C.R.O., the straight-line trace 61 swinging to the left or right in accordance with the predominance of echoes obtained by means of the respective horizontal radiation lobes, and the trace being reduced -to a spot when no signal is received. The receiver switching and indicating system is duplicated to give an " up-down indication. Specifications 596,442 and 608,632 are referred to.
Patent GB-393066-A (GB)
Title: Gearing for gradual speed change between a driving shaft and a driven shaft
IPC: F16H57/10
Filed: 1932-04-29
Abstract: 393,066. Systems for transmitting mechanical power. ALLER, G. VAN, 269, Rochussenstraat, Rotterdam, Holland, and PETERSEN, T. DONS-, 4, Rue d'Aquesseau, Paris. April 29, 1932, No. 12395. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 30, 1932.] Drawings .to Specification. [Class 38 (iv).] An epicyclic variable-speed gear has the free element of the gear fitted with a brake whereby the speed of rotation of the free element and hence the speed ratio may be controlled. The Specification as open to inspection under Sect. 91 describes a modification in which the casing carrying the bevel satellite pinions is connected by bevel gearing to a dynamo connected in circuit with an adjustable resistance or a motor and adjustable resistance. This ,subject-matter does. not appear in the Specification as accepted.
Patent GB-221250-A (GB)
Title: Improvements in the process of and apparatus for gas purification
IPC: B01D53/34
Filed: 1923-05-09
Abstract: 221,250. Holmes & Co., Ltd., W. C., and Cox, K. May 9, 1923. Sulphur.-An apparatus for carrying out the gas purifying process described in Specification 185,780 comprises a chamber containing a bed of reaction material surrounding a coil through which an attemperating fluid such as oil is circulated, this chamber being superposed on a heat exchanger for the incoming and outgoing gases and a sulphur condenser supporting the heat exchanger and leading to a cooling tower for the gases. The previously heated gas passes around the tubes b<2> of the heat exchanger B to the top of a chamber C down through the reaction material in the chamber C through the tubes b<2> and into a sulphur condenser D having a steam coil d<1>. A coil h<3> is embedded in the reaction material H which is contained in a receptacle c<1> which is easily removable without interfering with the central gas pipe b<3>. A lower drum b<4> is heated by internal steam circulator. The sulphur is removed through a plug d<8>.
Patent GB-472770-A (GB)
Title: Improvements relating to electric cable systems
IPC: G01M3/28
Filed: 1936-05-01
Abstract: 472,770. Indicating leaks in pipes. OKONITE-CALLENDER CABLE CO., Inc. May 1, 1936, No. 12411. Convention date, May 8, 1935. [Class 99 (ii)] [Also in Group XXXVI] A pipe line 1 filled with oil under pressure is divided into sections by joints 5 and valves 7, the valves being normally open and byepassing the joints. The valves operate in the manner described in Specification 425,113 to isolate a leaky section of the pipe line. Each section has a pressure gauge 30 having contacts adapted to close the circuit of an indicator 33 when the oil pressure in the section falls below a predetermined value. A separate indicator is provided for each pressure gauge.
Patent GB-782059-A (GB)
Title: Anionic permselective membranes and their use in electrolysis
IPC: C08J5/22
Filed: 1955-04-29
Abstract: An anionic permselective membrane comprises discrete particles of an insoluble, infusible anion-exchange resin dispersed intimately and uniformly throughout a matrix comprising at least one solid perhalogenohydrocarbon polymer obtained by polymerizing a perfluorochloro-olefin such as trifluorochloroethylene and/or a perfluoro-olefin such as tetrafluoroethylene.  The matrix may also contain polyethylene, polyvinyl chloride or a vinyl chloride-vinylidene chloride copolymer.  The anion-exchange resins may be those referred to in Specification 721,161, preferably those described in Specification 654,706.  Specification 738,515, [Group XXXVI], also is referred to.
Patent GB-125122-A (GB)
IPC: G01S1/72
Abstract: 125,122. Chilowsky, C., and Langevin, P. May 29, 1916. Condenser telephones; magnetic instruments. -Relates to constructions of electrostatic and magnetic instruments used in methods of locating submerged bodies, such as mines or icebergs, in which vibrations of ultra-audible frequency are used. In one form the transmitter or receiver is in the form of a condenser having two plates a, b separated by points of support c such as lines or points of varnish, or thin strips of mica. The plate b is thin to allow vibration. The space between the plates may be vacuous. The plates may be coated with gold or platinum, or with insulating material such as mica or cellulose acetate. The vibrating plate may have a thickness equal to half a wave-length. Modifications are described in which layers of liquid serve as plates, one of which may be formed by the water in which the apparatus is submerged. An ebonite plate coated with metal is also described. Resonance may be utilized by interposing between the condenser and the water a layer of medium in which the product of the density into the velocity of transmission is less than the corresponding product for water, the thickness of the medium being a quarter wave length. In an alternative form, plates of magnetic material, one comparatively rigid and laminated and the other thin to serve as a diaphragm have an insulated conductor arranged in zigzag form disposed between them.
Patent GB-931727-A (GB)
Title: Improvements in or relating to drawing boards and straightedges for drawing boards
Inventor: DARGUE ERIC LEWIN
IPC: B43L13/04
Filed: 1960-04-09
Abstract: 931,727. Draughting machines. DARGUE BROS. Ltd. April 4, 1961 [April 9, 1960], No. 12730/60. Class 97 (3). A straight edge 20 is guided for parallel motion over a drawing board 10 by at least one linear ball-bearing 40 sliding axially on a straight rod 18 attached to the load 10. As shown, the straight edge 20 has at one end a carrier 36 mounting a pair of recirculating ballbushings 40, 42, slidable on the circularsectioned rod 18. There may be a similar arrangement at the other end of the straight edge 20 but in order to allow the latter to be swung clear of the board 10 about the rod 18 the other end of the straight edge 20, as shown, is provided with a carrier 52 having grooved rollers 54, 56, running on a second rod 50. The straight edge 20 may be tilted towards or away from the drawing board about an axis transverse to rods 18, 50 by providing bearings on the carriers 36, 52 co-operating with stub shafts 28, 60 on the straight edge 20. Specification 920,333 is referred to.
Patent GB-347480-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D5/30
Filed: 1930-04-25
Abstract: 347,480. Steam turbines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Doran, J. H. ; 8, Oneida Street, Schenectady, New York, U.S.A.) April 25, 1930, No. 12803. Convention date, April 25, 1929. [Class 110 (iii).] The bases 7 of blades 6 are provided with means to take up differential expansion between blades and blade disc in a circumferential direction. Recesses 8 and projections 11 machined on alternate bases allow the bases to bow slightly when heated up.
Patent GB-504159-A (GB)
Title: Improvements in and relating to a furnace of the gas producer type
Filed: 1938-04-29
Abstract: 504,159. Gas - producer furnaces. HEIJDEN, W. J. VAN DER. April 29, 1938, No. 12821. [Class 51 (i)] A gas-producer furnace for central heating boilers is provided with a grate for supporting a deep bed of fuel having a central imperforate part 4 extending from the fire door end of the combustion chamber to the opposite end thereof and lateral grates 5 formed of bars spaced apart to provide small air passages. An air compressor 8 supplies air to the ashpit, to the flue 3 leading to the boiler and to the top of the fuel magazine 6. Specification 409,198 is referred to.
Patent GB-692328-A (GB)
Title: Interlay for plywood sheets used for doors, and the like
IPC: E06B3/70
Filed: 1951-05-31
Abstract: 692,328. Wood interlays. FEUERBORN, F. May 31, 1951 [Oct. 1, 1948], No. 12821/51. Class 145 (ii). An interlay for plywood doors and the like consists of corrugated or similarly formed strips a of plywood, veneer or the like arranged to form a number of cells loosely supporting each other with their extremities bedded in pairs a' into recesses in the upper and lower cross bars b of the frame, the cross bars having grooves d for the escape of hot air produced during manufacture of the plywood slabs.
Patent GB-1445362-A (GB)
Title: Electrostatic precipitation
IPC: B03C3/41
Filed: 1973-08-15
Abstract: 1445362 Electrostatic precipitators HIGH VOLTAGE ENG CORP 15 Aug 1973 [17 Aug 1972] 12838/76 Divided out of 1445361 Heading B2J [Also in Division H2] The subject matter of this specification is substantially the same as that described in Specification 1445361, but the claims are directed to an arrangement in which the diameter of the discharge electrode wires is at least 3/64 the distance between the wires and the collector electrodes.
Patent GB-690046-A (GB)
Title: Improvements in or relating to lubricating compositions
Filed: 1950-05-23
Abstract: A lubricating composition comprises lubricating oil, an oil soluble alkaline earth metal salt of a sulphonic acid of molecular weight between 300 and 600, a water soluble alkaline earth metal salt of a carboxylic acid having not more than 6 carbon atoms, and either a water soluble alkaline earth metal 1-6 carbon atoms or a lead salt of a carboxylic acid having not more than 6 carbon atoms.  The high molecular weight sulphonates may be derived from aromatic compounds such as benzene, toluene or xylene alkylated with olefins or olefin polymers such as polypropylene or polyisobutylene; alkyl sulphonates may also be used.  Low molecular sulphonates referred to are methane, ethane and propane sulphonates.  The carboxylate and the lead salt may be salts of formic, acetic, propionic, butyric, oxalic, furoic or lactic acids.  Mineral or synthetic lubricating oils may be used.  In one example, a grease comprises 10 parts by weight strontium sulphonate, 5 parts calcium acetate, 3.5 parts ethanesulphonic acid, 1.5 parts lime and 85 parts mineral oil.  This grease was compared with a conventional grease comprising sulphurized fatty oil in a lithium base grease.  The preparation of the greases is described.
Patent GB-690826-A (GB)
Title: Improvements in or relating to electric current converters
IPC: H02M3/18
Filed: 1950-05-23
Abstract: 690,826. Converting. WIDAKOWICH, M. May 23, 1950 [July 9, 1949]; No. 12920/50. Class 38 (ii). A contact convertor has for each D.C. input pole movable contacts 1, 2; 3, 4, and four fixed contacts 5, 6, 9, 10; 7, 8, 11, 12, the end contacts 5, 9; 8, 12 being connected directly to the associated D.C. poles and the intermediate contacts 6, 11; 7, 10 being interconnected to form the single-phase A.C. output terminals, the movable contacts being connected to the associated D.C. pole through a commutation aiding condenser C<SP>3</SP>, C<SP>4</SP> and arranged to reciprocate between the fixed contacts to engage the respective D.C. and A.C. poles across the latter of which is connected a further commutating aid comprising the series combination of a condenser C<SP>1</SP> and a resistor Z. The contacts 5, 9, 8, 12 may be arranged nearer their associated moving contacts than they are the remaining fixed contacts so that they make before and break after said remaining contacts, thereby to render unnecessary the provision of charging current limiting resistors in series with the condensers C<SP>3</SP>, C<SP>4</SP>.
Patent GB-819394-A (GB)
Title: Arrangement of parallel working, self-excited synchronous generators
IPC: H02P9/38
Filed: 1957-04-24
Abstract: 819,394. Running alternators in parallel. ALLMANNA SVENSKA ELEKTRISKA A.B. April 24, 1957 [April 26, 1956], No. 13016/57. Class 38 (4). In a system comprising parallel-connected self-excited synchronous generators having load current transformers feeding the field windings through rectifiers, the current transformers are connected in parallel through additional secondary windings to achieve a desired distribution of reactive current. Two generators 2a, 2b, having current transformers 6a, 6b, have additional secondary windings 16a-18a, 16b- 18b, respectively connected together through switches 19a, 19b coupled to the main circuit breakers 3a, 3b, so that they open and close together. Current transformers 6a, 6b are also connected to voltage-influenced transformers 7a, 7b which are energized by the current drawn by reactive loads 8a, 8b. The output from transformers 7a, 7b with in-phase loads is in quadrature to transformers 6a, 6b to compensate for armature reaction due to varying power factor.
Patent GB-779859-A (GB)
Title: Improvements in and relating to seed drills
IPC: A01C7/20
Filed: 1956-04-27
Abstract: 779,859. Seed sowers. AKTIEBOLAGET WESTERASMASKINER. April 27, 1956 [April 30, 1955], No. 13034/56. Class 6(1). A seed drill comprising coulters 6 adapted to be raised and lowered by means of a hydraulic cylinder or a half revolution clutch 19 is characterized in that the coulters are adjusted independently of the raising and lowering mechanism by means of a screw 20 and nut 21, the screw 20 being connected through a universal joint 22 to a telescopic shaft 23 provided with a handle 24. The nut 21 is connected to a connecting rod 13 operated by the clutch 19 and adjustment of the nut by the screw moves the connecting rod relatively to a lifting lever 12 in which the screw is mounted. The lever 12 is attached to a lifting shaft to which is secured a lever 11 connected by a link 10<SP>1</SP> to a lever 8 on one end of which the coulter 6 is mounted.
Patent GB-673631-A (GB)
Title: Improvements in heavy-media separation process and apparatus
IPC: B03B5/36
Filed: 1946-04-30
Abstract: 673,631. Endless conveyers. AMERICAN CYANAMID CO. April 30, 1946. [June 1, 1945] No. 13063/46. Class 78 (i). [Also in Group II] In a heavy media separation apparatus the "sink" fraction is removed by a push-plate conveyer 21 in a casing and discharged above the liquid level. Additional liquid may be added to the conveyer casing through pipes 46, 47, 48. Specification 590,481, [Group II], is referred to.
Patent GB-514321-A (GB)
Title: Improvements relating to cinematograph projection apparatus
IPC: G02B1/00
Filed: 1938-05-02
Abstract: 514,321. Kinematograph projectors. BRITISH THOMSON-HOUSTON CO., Ltd., and DAVIES, B. R. May 2, 1938, No. 13085. [Class 97 (i)] An aperture plate is provided between the source of light and the film, a lens or lens system images the aperture on the film, and the usual aperture plate in the film gate is omitted. As shown, plano-convex lenses C, D condense light from a source A on a film B, and a plano-convex lens G produces on the film an image of the aperture in a plate F between the source A and lens C. The aperture plate F may be adjustable for framing.
Patent GB-856393-A (GB)
Title: A process for the manufacture of 4-amino-isoxazolidone-(3)
Filed: 1959-04-17
Abstract: 4-amino-isoxazolidone-(3) is prepared by treating a 2-alkoxycarbonyl-ethyleneimine with a strong acid (e.g. hydrochloric acid) in a solvent (which must be a poor solvent, e.g. water, in the case where the alkoxy group may be considered to have been derived from a primary alcohol), and reacting the resulting b -(strong acid anion-substituted)-a -aminocarboxylic acid ester, strong acid addition salt with hydroxylamine and a strong base in the presence of water.  2-Isopropoxycarbonyl-ethyleneinine is prepared by reacting a : b -dibromopropionic acid isopropyl ester with liquid ammonia in the presence of N-phenyl-a -naphthylamine as a stabilizer. Specification 812,830 is referred to.
Patent GB-131357-A (GB)
IPC: D01F2/28
Abstract: 131,357. Radcliffe, J. May 16, 1918. Cellulose acetates.-In making cellulose acetate, excess of acetic anhydride is hydrated, to stop the acetylation, by addition of a salt containing water of crystallization such as sodium acetate, sodium sulphate, or alum.
Patent GB-1190011-A (GB)
Title: Yarn Drafting Method and Apparatus
Inventor: TINDALL JOHN RAYMOND
IPC: D01H5/18
Filed: 1966-03-24
Abstract: 1,190,011. Twisting yarns. COURTAULDS Ltd. 23 June, 1967 [24 March, 1966], No. 13148/66. Heading D1D. A roving 7 is drawn from a package 6 by drafting rollers 8, 9 mounted in a frame 1 so that they rotated about both their own axis and the axis of the package and the yarn is then .side wound .onto a package (not shown).- Four such frames may be combined to-produce a four fold yarn.
Patent GB-170033-A (GB)
Title: Improvements in or relating to concrete building
IPC: E04G17/12
Filed: 1920-05-13
Abstract: 170,033. Hayes, W. P., and Hayes, P. G. May 13, 1920. Wall-ties. -Wallties which support shuttering during moulding are formed of wire with twisted centre portions 1 and hooked end portions 2, of sufficient width to receive the shuttering. The hooked ends may be twisted on to loops 7 formed on the centre portion and a central bend provided for use when internal shuttering is used. After moulding, the ends may be cut off or turned up to form supports for trellis work or ornamental wire.
Patent GB-561431-A (GB)
Title: Improvements in or relating to internal combustion engines of the horizontal type
IPC: F02F1/18
Filed: 1942-09-21
Abstract: 561,431. Cylinders; driving gear. SULZER FRERES SOC. ANON. Sept. 21, 1942, No. 13273. Convention date, Oct. 21, 1941. [Class 7 (ii)] To facilitate dismantling and removal of the pistons of a horizontal engine, particularly of the opposed-cylinder type, means is provided for attaching the piston 1 rigidly to the crank 5 and the cylinder liner 14 is provided with a detachable extension or bush 15 dismantled simultaneously with the piston. In dismantling, the crank 5 is barred round to the position shown in Fig. 2, the big-end bearing cap is removed and the connecting-rod 3 attached to supporting tackle by means of an eye 17. The connecting-rod then bears on the edge of the bush 16 and the crank can be moved to the position 5a and the connecting- rod drawn further out. The crank 5 is barred round to the position 5b, Fig. 5, and the piston drawn out to abut the crank-webs at 19; a divided bush 20 is secured around the,piston trunk and fixed by axial bolts to the crank-webs and to the bush 15 and an end cap 23, the connecting-rod also being attached to the crankwebs by an iron strip 21 and screws. The crank and attached piston &c. can then be barred round to the position shown in Fig. 6, and on removing the bush 20 the piston can be slid out along a dismantling rail 24.
Patent GB-938421-A (GB)
Title: Improvements in or relating to web transporting apparatus
Inventor: PHILLIPS JOHN ARNAUD
IPC: G11B15/22
Filed: 1959-04-18
Abstract: 938,421. Feeding webs. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 11, 1960 [April 18, 1959], No. 13282/59. Class 100 (1). [Also in Group XXXVIII] Web transporting apparatus for use in, e.g. a magnetic recording machine, comprises means for mounting two spools, means for winding the web from one spool to the other, brakes to stop the spools, means to keep the brakes normally inoperative and means sensitive to the direction of movement of the web, whereby on application of the brakes a larger braking force is applied to the spool from which the web is being unwound compared with the braking force applied to the winding spool. In the embodiment described the shafts 1, 2, carrying the spools have motors energized as described in Specification 933,862, which may have a D.C. braking voltage applied. Mechanical brakes have drums 4, 5 and brake bands 6, 7 anchored at one end to blocks 8, 9, and at the other end connected to slides 10, 11 guided in brackets 12, 13. Springs 14, 15 urge bands 6, 7 into engagement with drums 4 and 5. Slides 10, 11 are coupled to arms 16, 17 of bell-crank levers whose other ends are coupled to a solenoid armature 22. The capstan roller 3 is frictionally coupled to a disc 30 carrying a peripheral projection 31. When the capstan roller is rotating anticlockwise the projection is in the position shown by the full lines, and on reversal of the rotation it is in the position shown dotted. When operating the solenoid 23 is energized and the brakes are maintained OFF. When the solenoid is de-energized, the appropriate drum (according to the direction of rotation of the capstan roller) is given a greater braking force.
Patent GB-1315782-A (GB)
Title: Gland packings
IPC: F16K41/02
Filed: 1971-05-05
Abstract: 1315782 Shaft seals ETHYLENE-PLASTIQUE SA 5 May 1971 [13 May 1970] 13282/71 Heading F2B Gland packing for a pump shaft comprises an L-section carrier ring 7 having a chamber 8, a deformable washer 9, a steel spacer ring 10 engageable in a V-section recess in the washer, and a toric ring 11 of pure copper. The washer 9 is preferably made of P.T.F.E. filled with bronze and molybdenum disulphide.