baber/WOPTO huggingface dataset:
Patent GB-493574-A (GB)
Title: Improvements in or relating to radio direction finding
IPC: G01S1/02
Filed: 1937-07-28
Abstract: 493,574. Directive wireless signalling. JAEGER - AVIATION. July 28, 1937, No. 20941. Convention date, July 29, 1936. [Class 40(v)] The currents in angularly displaced directional receiving aerials are separately modulated at the same low frequency by variation of the coupling between the loops and the receiving circuit at phases corresponding to the angular positions of the aerials, the receiver comprising a phasemeter which indicates the direction of incoming signals. In one embodiment, Fig. 3, two mutually perpendicular loop aerials 1, 2 feed a common transformer TR through couplings S1, S2 and S<1>1, S<1>2 respectively which are provided with magnetic cores N the permeability of which is varied at a low frequency by electromagnets F, E respectively, the coils S3 and S<1>3 of which are supplied with currents having a phase difference of 90‹. The phase of the resultant low frequency currents in the transformer TR is indicated by the receiver R and is a measure of the angle of incidence of the incoming wave energizing the aerials 1, 2. In a modification, Fig. 2 (not shown), the two couplings are associated with a common' circular magnetic core, means being provided to produce therein a rotating field. In systems in which the aerial and secondary circuits are tuned, in order to avoid detuning due to the variation of permeability of the coupling means, each coupling, e.g. between an aerial circuit Lo, Co, Fig. 5, and a secondary circuit L4, C4, comprises a pair of inductances L1, L<11>1, coupled respectively to a further pair L2, L<11>2, the permeability of the cores N, N<11> being varied with a phase difference of 180‹ by magnetizing currents in the coils S3, S<11>3, which are supplied from a common source A, B. The couplings may be matched by adjustable steady magnetizing currents from a source D. In a further embodiment, Fig. 6, the currents in the aerials 1, 2 are modulated by low frequency currents which are 90‹ out of phase, by the inclusion in their circuits of transformers T1, T2 respectively supplied with the modulating currents, and rectifiers d1, d2 respectively. The aerials 1, 2, Fig. 7, of another embodiment are coupled to circuits S2, S<1>2, respectively, which are variably damped by the shunt connected valves V1, V<1>1 to the grids of which are applied the out-ofphase modulating potentials. The modulation may alternatively be produced by variation of the capacity of condensers with a dielectric the ionization of which is caused to vary, Fig. 8 (not shown). These condensers comprise tubes of rarefied gas containing electrodes and controlled by external solenoids carrying high frequency currents of variable amplitude. The phasemeter of the receiver R is preferably constituted by a cathode-ray tube.
Patent GB-906733-A (GB)
Title: Improvements in or relating to toys formed of sheet material
IPC: A63H33/18
Filed: 1959-06-18
Abstract: 906,733. Propeller and boomerang toys. SHAPIRO, W. J. May 20, 1960 [June 18, 1959], No. 20967/59. Class 132 (3). The identical blade members 10 of the boomerang shown in Fig. 1 are made of cardboard and have folds 11 to enable the members to be pressed into V or dihedral form. Each member has a dove-tail recess at each edge for receiving an edge of the other member, the two members thus being interlocked. In place of the central folds 11 a pair of folds spaced from the edges of each member may be provided, Fig. 2 (not shown). In further modifications, Figs. 3, 11 (not shown), one of the blade members has a central single aperture or a pair of apertures for receiving the other member. Three-armed and six-armed boomerangs are also specified. Fig. 6 shows a blade adapted to be engaged with a complementary blade to operate as a propeller, helicopter type of rotor or pin wheel. Alternatively, by using a retaining member to maintain the dihedral of the blade, a single blade propeller may be formed. The toys may alternatively be made of paperboard or synthetic resin sheet. according to the Provisional Specification the parts may be shaped or cut to form pockets or loops to receive buttons or small coins to weight the toys for correct operation. Specification 906,734 is referred to.
Patent GB-1042246-A (GB)
Title: Improvements in or relating to luminescent materials
Inventor: BURRUS HENRY LEONARD
IPC: C09K11/70
Filed: 1964-05-21
Abstract: A luminescent material comprises thorium phosphate activated by tin, optional additional activators being lithium, potassium, rubidium, copper, silver, magnesium, zinc, manganese and iron, the total activator content being less than 25 weight per cent of the thorium phosphate. The TRO2: P2O5 molar ratio is in the range 1: 1 to 5: 2, orthophosphates being preferred, and the materials have good high temperature luminescence, e.g. up to 250 DEG  C.  Specific examples are activated by: Sn (blue luminescence); Sn + Zn (blue-green); Sn + Li (green); Sn + Mn (green); Sn + Mg (green); Sn + Fe (green); Sn + Ag (red); Sn + Cu (yellow); Sn + Rb (blue); Sn + K (blue); Sn + Li + Rb (green); Sn + Cu + Rb (orange); Sn + Rb + Ag (pink).  The materials may be prepared by heating in a reducing atmosphere at 1100-1250 DEG  C.
Patent GB-376959-A (GB)
Title: A device to keep railway carriage doors locked whilst train is in motion
IPC: E05B65/36
Filed: 1931-07-24
Abstract: 376,959. Vehicle door fastenings. DAVIS, G. F., Terminus House, Tramore, Co. Waterford, Irish Free State. July 24, 1931, No. 21116. [Class 44.] The carriage doors of a train are locked from a lever in the engine cab by means of sliding bars 1, running the length of each carriage and connected up throughout the length of the train, which operate bell-crank levers 6 by chains or cables 4 passing round guide pulleys 5 to raise locking bars 7 fitted in the door frames into engagement with slots 14 in the doors 9. The sliding bars 1 are joined up by hinged connections comprising two T-bolts 12 coupled together by a screwed sleeve 13 after their T-heads 21 have been inserted in slotted members 10 pivoted on the bars 1. The locking is released on the return of the sliding bars 1 by their springs 15 when the driver returns his lever or on breaking the connection with the engine.
Patent GB-320158-A (GB)
Title: Improvements in or relating to variable speed gearing
IPC: F16D47/02
Filed: 1928-07-21
Abstract: 320,158. Rushfirth, S. July 21, 1928. Clutches, arrangements of. - In order to facilitate the operation of change-speed gearing upon a vehicle, a clutch is arranged upon the end of the cardan shaft b the normal positive engagement of which can be changed to frictional engagement by applying thrust to a collar m against a spring q. A sleeve a which slides on splines on the end of the shaft b carries a claw clutch member e and a coned friction member c. An outer sleeve f carries a claw clutch member h, a female friction cone c<1>, and lugs j forming part of the usual universal joint. During normal running, the claw members e, h are engaged and a control lever which engages collar m is not under constraint.
Patent GB-365494-A (GB)
Title: Improvements in and relating to tipping vehicles
IPC: B60P1/12
Filed: 1931-07-24
Abstract: 365,494. Tipping vehicles. PESCATORE, T., Bofferdange, Luxembourg. July 24, 1931, No. 21157. Convention date, July 24, 1930. [Class 108 (i).] In tipping vehicles in which the body is pivoted to a frame adapted to be fixed to the chassis, which frame carries the tipping mechanism and a support for the body when in normal position the fixed frame 1 is provided with an inclined rectilinear plane 2 which makes an angle with a similar plane 5 secured to the tipping body 4, the tipping of the body being accomplished by the forcing of a wedge-shaped carriage 7 into the angle formed by the planes by means of a tipping plunger 3 &c. The wedge-shaped carriage comprises three rollers 9, 10, 11, two of which 9, 10 are in contact with one another. The carriage is merely in contact with the tipping plunger 3.
Patent GB-571324-A (GB)
Title: Improvements in or relating to fluorescent materials
IPC: G21K4/00
Filed: 1943-12-17
Abstract: 571,324. X-ray sensitive material and intensifying screens. TASKER, H. S. Dec. 17, 1943, No. 21181. [Class 98 (i)] [Also in Group XL] Luminescent material is produced by firing at a temperature above 600‹ C. a mixture of substantially pure lead sulphate with substantially pure strontium sulphate and/or calcium sulphate. The preferred firing temperature is about 1000‹ C. The material may be fired in the presence of a flux, for example ammonium sulphate. In using the material for X-ray screens it may be dispersed in a carrier such as a cellulose derivative, colourless synthetic resin, gelatin, or other colloid and coating on a paper or other support. This screen may then be placed into contact with a silver halide emulsion. Alternatively the two layers may be coated on to one support. When the fluorescent layer is coated on the face of the emulsion or on the back of the support, it may be suspended in a carrier soluble in water or dilute alkali, for example fish glue or an acid resin. It can then be removed prior to processing of the emulsion. One side of the fluorescent screen may be coated with lead foil. Specification 540,252 is referred to.
Patent GB-1222127-A (GB)
Title: Improvements in or relating to fuse-containing cartridges for use for underwater acoustic signalling purposes
IPC: F42C15/20
Filed: 1968-05-03
Abstract: 1,222,127. Cartridges. DYNAMIT NOBEL A.G. 3 May, 1968 [5 May, 1967], No. 21196/68. Heading F3A. A cartridge comprises a housing 24, 34, 12 at least partly surrounded by a cartridge case 8; arranged sequentially in an axial bore in the housing a primer 18 for igniting, for example, an acoustic charge 31, and a biased firing pin 1, one of the firing pin or the primer being fixed and the other being displaceable; and locking means 2 in a radial bore in the housing for spacing the firing pin and primer apart, the locking means 2 being controlled by a second locking means 35 which is actuated in response to external pressure on a piston 10 which, prior to firing is out of communication with the surrounding medium. A third locking means comprising further means 2 is controlled by a rearwardly biased safety member 3 locked by means 7. A fourth locking means (not shown) extends transversely in a blind hole between the firing pin and primer and is movable in response to predetermined external pressure to align a bore therein with the primer and firing pin. Upon firing the cartridge, the case 8 is stripped off the housing, whereupon a plug 15 closing a passage leading to the thrust face of the piston is ejected. Meanwhile, the means 7 falls away and the safety member 8 is moved rearwardly to release the third locking means. When the external pressure reaches a predetermined valve the second locking means 35 is actuated by the piston 10. In a modification, either the fixed primer or the fixed firing pin is mounted in the bore of the fourth locking means.
Patent GB-951291-A (GB)
Title: Improvements in or relating to humidity determination
IPC: G01N21/35
Filed: 1962-06-01
Abstract: 951,291. Determining humidity. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 1, 1962 [June 1, 1961], No.21199/62. Heading G1A. The water vapour content of carbon dioxide cooling gas is determined by dividing a sample of the gas into two flows 16, 5, the first being passed through the measuring cell 23 of an infra-red absorption analyser, whilst the second has the water content reduced to hydrogen in a reagent column 7'and is then passed through the reference cell 13 of the analyser. The infra-red analyser is of known form in which infra-red at the water vapour absorption band is provided by sources 28, 29 and is measured by a capacitor detector 26, 27 actuated by a pressure difference produced in gas chambers 15, 25. The radiation is interrupted by a rotary shutter (not shown). A signal produced by the capacitance variation is indicated by a millivoltmeter and may also be used to operate an alarm device. Calcium hydride is the preferred reagent for column 7, although other materials are referred to. 4, 8 and 18 are glass-wool dust filters. 3, 16, 11 and 21 are flow regulating valves. 10 is a water bath or other means for equalizing the temperatures of the gas flows in cells 23 and 13.
Patent GB-135982-A (GB)
Title: A Connecting Device or Link for Coupling Objects Together.
Inventor: PITT SAMUEL THOMAS
IPC: F16G15/04
Filed: 1918-12-19
Abstract: 135,982. Pitt, S. T. Dec. 19, 1918. Chain ocuplings. -Consists of coupling-links of the kind comprising half-links A, B connected together by a pivot E, gaps C, D in the two parts being normally out of register, but adapted to be brought into register for the passage therethrough of a chain link or other object by turning the parts relatively on the pivot. In the construction shown in Fig. 2, the gaps are formed in collateral sides of the half-links, and the pivot is placed in the middle of the sides opposite to the gaps. In the construction shown in Fig. 4, the gaps are formed in opposite sides of the halflinks, and the pivot is situated adjacent one gap and opposite to the other.
Patent GB-460254-A (GB)
Title: Improvements in ball and socket joints and devices embodying the same
IPC: F16C11/06
Filed: 1935-07-25
Abstract: 460,254. Universal joints. FORD MOTOR CO., Ltd. July 25, 1935, No. 21212. Convention date, March 22. [Class 65 (ii)] In a ball joint, particularly for vehicle shock-absorber links, having between the ball 12 and socket 16 an insert 18 of rubber or like deformable material under relatively high compression pressure, the opening in the insert 18 through which the ball stem 14 extends is elongated, being of width equal to the thickness of the stem 14 but of greater length to allow limited swinging in one plane. The insert is preferably formed, as shown, with a collar surrounding the opening and fitting in a corresponding opening in the socket. In the form shown, the socket is formed with a large opening at the side opposite to the ball stem to permit assembly of the joint, and this opening is closed by a partspherical cap 20 which is secured by crimping or spinning over the edge of the socket opening. In a modification, the socket has only one opening and the ball stem passes through an aperture in the closing cap.
Patent GB-1422175-A (GB)
Title: Xerographic erase mechanism
IPC: G03G21/10
Filed: 1973-05-04
Abstract: 1422175 Erasing electrostatic images XEROX CORP 4 May 1973 [12 May 1972] 21259/73 Heading G2H Deposition of toner on areas of photoconductive drum 10 which are not to contact a copy sheet is prevented by flooding of them with light from a suitably masked source before development. The source may be an electroluminescent panel 26, with a sliding shade 28 which can be adjusted to vary the width of margin X. The shade may be linked to a copy sheet sensing device, and be moved according to the width of sheets to be printed on.
Patent GB-154342-A (GB)
Title: An improved apparatus for the removal of scale or rust from boilers and the like
IPC: F28G3/10
Filed: 1919-08-29
Abstract: 154,342. Martinussen, J. P. Aug. 29, 1919. Cleaning internally, rotary appliances for. -In high-speed rotary boiler-cleaners of the type in which centrifugally-acting cutters 5 are loosely mounted on pins 4 between a series of circular plates 1, the pins 4 are alternately displaced with respect to one another and one or more positively-acting cutters, Fig. 4, serrated on their outer surfaces and peripheries, are mounted on the plate at the forward end of the tool. The cutters 5 are of oval or cruciform shape with serrated edges and enlarged circular or oval central holes. The plates 1 may all be of the same diameter or of progressively smaller diameter towards the forward end of the implement.
Patent GB-1459849-A (GB)
Title: Measurement of liquid flow
IPC: G01F1/00
Filed: 1974-05-14
Abstract: 1459849 Ultrasonic doppler flowmeter AUSTRALIA COMMONWEALTH OF 14 May 1974 [15 May 1973] 21344/74 Heading GIG The Specification describes a method of ultrasonically examining a fluid carrying vessel situated within an object, e.g. an artery carrying blood, within tissue, and determining the velocity of fluidflow within the vessel using the Doppler frequency shift of ultrasonic energy which may be pulsed or continuous reflected from the vessel. A transducer, which may be the same or different to the transducer making the Doppler velocity measurement, is used in B-mode to obtain a cross-sectional display which identifies the orientation and dimensions of the vessel being examined, using pulses of ultrasonic energy at 1-30 MHz. The Doppler shift in frequency of the echoes is measured along selected line of sight 3, simultaneously with, or subsequently to, the B-mode measurement which establishes the outline 1, the diameter of the tube 2, and the angle 4 thereof to the line of sight 3. From this data, the fluid velocity and volume flow may be calculated.
Patent GB-639015-A (GB)
Title: Improvements in or relating to steel and the manufacture thereof
IPC: C21C7/00
Filed: 1947-08-06
Abstract: A rimming steel having non-ageing characteristics contains between 0.01 per cent and 0.15 per cent of vanadium.  The vanadium may be added as ferro vanadium, vanadium pentoxide or sodium or calcium vanadate.  The carbon and silicon contents should be 0.07 per cent and less than 0.01 per cent respectively.  The steel is stated, after annealing, to be suitable for deep drawing.  The Specification as open to inspection under Sect. 91 includes also the addition of 0.3 per cent chromium instead of vanadium. This subject-matter does not appear in the Specification as accepted.
Patent GB-1430293-A (GB)
Title: Cephalosporin derivatives
IPC: B23K35/36
Filed: 1973-05-04
Abstract: 1430293 Dithiocarbonyl acetylaminocephalo- Sporins E R SQUIB & SONS Inc 4 May 1973 [9 June 1972] 21369/73 Heading C2C Dithiocarbonylaminoacetylcephalosporins of the formula wherein R is hydrogen, lower alkyl, aralkyl, -CH 2 -OOCR 4  or a salt-forming ion, R 1  is hydrogen, lower alkyl, lower alkenyl, cyclolower alkyl, cyclo-lower alkenyl, cyclo-lower alkadienyl, aralkyl, monocyclic carbocyclic aryl, or thienyl, furyl, oxazolyl, isoxazolyl, thiazolyl or halo, lower alkyl, lower alkoxy or phenyl substituted thienyl, furyl, oxazolyl, isoxazolyl or thiazolyl, R 2  and R 4  are each lower alkyl, monocyclic carbocyclic aryl or aralkyl, R 3  is hydrogen, lower alkyl, monocyclic carbocyclic aryl or aralkyl, and X is hydrogen. hydroxy, lower alkanoyloxy, aroyloxy, aralkanoyloxy, lower alkylthio, lower alkoxy, the radical of a nitrogen base, a quaternary ammonium radical, or together X and R represent a bond linking carbon and oxygen in a lactone ring, have broad spectrum antibacterial activity and may be incorporated in pharmaceutical and cleansing compositions and in amine feed supplements. The lower alkyl, alkenyl and alkoxy groups have up to 8 carbon atoms. The aryl groups are monocyclic carbocyclic and are optionally substituted with one to three halogens, lower alkyl, lower alkoxy, hydroxy or carboxy groups, The aralkyl groups consists of an aryl group attached to a lower alkyl group. The alkanoyloxy, aroyloxy and aralkanoyloxy groups are derived from the alkyl, aryl and aralkyl groups defined above. The cycle-lower alkyl groups have 3 to 7 carbon atoms, and the cyclo-lower alkenyl and cyclo-lower alkadienyl groups have 4 to 6 carbon atoms. The compounds of Formula I are prepared (a) by reacting compounds of formula with a compound of formula or a reactive derivative thereof, wherein R, R 1 , R 2 , R 3  and X are as defined above, or (b) by reacting compounds of formula with CS 2  and a compound R 2 -Hal, wherein R, R 1 , R 2 , R 3  and X are as defined above and "hal" is halogen'
Patent GB-865115-A (GB)
Title: Improvements in or relating to apparatus for drying fibrous materials
IPC: F26B13/02
Filed: 1957-07-08
Abstract: 865,115. Drying threads in long lengths. SUCKER G.m.b.H. GEB. July 8, 1957 [July 24, 1956]. No 21532/57. Class 34(2) A group of parallel threads F, Fig. 1, are dried by contact with counterflow hot drying medium during roller guided passage through the ducts 11, 12, 13, 14, of an apparatus comprising superposed drying units 1, 2, each of which incorporates two sets of medium heating and circulating means 7, 3, and 8, 4, or 9, 5, and 10, 6. Ducts 12, 13, form a composite duct and medium flow is controlled by gates 15, 16, 17, 18. In another embodiment each unit 1, 2, Fig. 2, comprises single heating and circulating means 7, 3 or 9, 5, and the drying medium and threads pass along the composite duct 12, 13, in the same direction. In yet a further embodiment, in which each unit has two sets of heating and circulating means 7, 3, and 8, 4, or 9, 5, and 10, 6, Fig. 3, two control gates 19, 20, are located in the central partition walls to selectively provide either a series or parallel arrangement, in relation to the flow of the drying medium, both for the drying ducts and the circulating means. Observation gates 22, 23, are formed in the end walls of the units adjacent negative pressure zones from which any moisture evaporating therein from the threads is removed. These zones house thread dividing rods 24 and, if necessary, moisture measuring devices. In addition to the threads F a further thread group F2 is dried by passage through the composite duct 12, 13, onlyif desirable, at slower speed than that of the threads F. Figs. 4-13 (not shown) show possible combinations of four drier units in which there are two pairs of units -each similar to the pair shown in Fig. 2 -disposed in end-to-end relationship. Fig. 14 shows drying units of triangular shape having heating and circulating means 7, 3, 8, 4, 9, 5, 10, 6, 81, 41, 71, 31, 101, 61, 91, and 51. Different drying media having different specific weights, temperatures, pressures or chemical compositions may be circulated through the ducts of the respective units.
Patent GB-851626-A (GB)
Title: Improvements in or relating to low noise electron guns
Inventor: CURRIE MALCOLM RODERICK
IPC: H01J3/02
Filed: 1958-07-04
Abstract: 851,626. Electron guns. HUGHES AIRCRAFT CO. July 4, 1958, No. 21581/58. Class 39(1). A low-noise electron gun for klystrons, magnetrons or travelling- wave tubes comprises a cathode K, Fig. 4, having an emissive surface a potential profile-shaping electrode P disposed radially adjacent the cathode and being the electrode nearest so the emissive surface and an accelerating electrode A axially separated from the cathode and having a potential which is algebrically between the potentials of the cathode and electrode P, the the latter being most-positive. As shown by the equipotential plot, the arrangement gives a long region of low field between electrodes P and A and a high concentration of field at the edges of the cathode, both factors being said to conduce to low noise. In a " Christmas-tree " arrangement for producing a hollow beam a sapphire base plate 42 carries cathode 44 with heater 48 and projecting emissive flange 49. It also carries by rods 50, 58 disc-like inner and annular outer portions of electrodes 52 . . . 56, 52 being the profile-shaping electrode, 53 the first accelerating electrode and anodes 54, 55, 56 being further anodes at successively higher potentials; there need only be one further anode, Fig. 1 (not shown). The profile-shaping electrode may have a sharp bevel on its inner edge and this may be doubled as in Fig. 8 ; it may however be a torus, Fig. 7 (not shown). It may be disposed in, before or after the plane of the emissive surface. Backward wave may be utilized.
Patent GB-319683-A (GB)
Title: Improvements in and relating to aerial electric cables
IPC: H01B7/42
Filed: 1929-07-13
Abstract: 319,683. Felten & Guilleaume Carlswerk, Akt.-Ges. Sept. 26, 1928, [Convention date]. Cables with heat dissipating means.-In order to dissipate heat in an aerial cable, the surface of the cable is provided with cooling ribs. In the construction shown, the cooling ribs b are formed with surfaces which lie in planes passing through, or which are parallel to, the axis of the cable a. In a modified construction the cooling ribs are in the form of parallel discs arranged concentrically with respect to the cable.