baber/WOPTO huggingface dataset:
Patent GB-434117-A (GB)
Title: Improvements in or relating to directional radio systems suitable for use for navigation purposes
IPC: G01S1/02
Filed: 1934-01-27
Abstract: 434,117. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and MATHIEU, G. A., 3, Mayfield Gardens, Shirehall Park, Hendon, both in London. Jan. 27, 1934, No. 2867. [Class 40 (v)] A short-wave directional system for navigational purposes is characterized by the production of a clear-cut "zone of silence" formed as the result of interference between two beams of like wavelength inside a relativelybroad field of radiation. The zone may be permanent, or periodically created or rotated. It is produced by feeding currents of fixed amplitude and phase to dipole aerials, the relative polarization of the aerials being likewise fixed ; or these different factors may be varied. Various means are described for enabling the navigator to ascertain the orientation of the zone, or his position relative to it. As shown in Fig. 1, two dipoles D1, D2, backed by reflectors R1, R2, are energized in phase-opposition from a source 5 through two feed-lines, one of which comprises a halfwave retarder I. The resulting radiationfield is shown in Fig. 1<a>, the zone of silence being indicated at Z1. In Fig. 3, four dipoles D1 ... D2 are energized in the phases shown, and produce the radiation field shown in Fig. 3a, with four zones Z1 .. Z4. The system may be used to provide a landing-beam for aircraft, or a " bearing line " for ships entering a harbour. In one method of rotating the zone, a concentric two-wire feed-line between the source and the aerial is broken at X, Fig. 7, and the inner and outer conductors C2, C1 are "splayed" so as to form a capacity coupling, of graduated impedance to avoid reflection. This arrangement allows of relative rotation without any rubbing contacts. A characteristic change in the modulating frequency is effected, say when the zone passes true North. In the case of a fixed zone, an indication is given to show the navigator when he is to port or starboard by means of a rotating switch, which short-circuits each of the dipole radiators at a different frequency. Or different tone-frequencies are imposed on the aerials by means of a rotating screen interposed between toothed capacity couplings of the kind shown in Fig. 7. The zone may be swung to-and-fro, and carry different tone-frequencies on each half of the swing ; or a characteristic note may be radiated when it is in the centre of its swing. Or the zone may be created and destroyed periodically, either. by varying the phases of the aerial currents by interposing a rotating capacity coupling in the feed-lines, or by rotating one of the dipoles so as to reverse its effective plane of polarization. In some cases a distinctive note is radiated periodically, so that a navigator who is keeping to the zone receives occasional confirmation that the beacon is actually in operation. Visual or audible indicators are provided for reception.
Patent GB-1288025-A (GB)
IPC: H03K5/01
Filed: 1970-01-21
Abstract: 1288025 Transistor bi-stable circuits TEKTRONIX Inc 21 Jan 1970 [21 Jan 1969] 2945/70 Heading H3T A bi-stable circuit comprises two pairs of active elements (transistors or valves) 10, 12 and 14, 16 interconnected as shown so that the output of one element in each pair, 10 and 14, is connected to the control terminal of the other element in each pair 12 and 16. At any time, one element in each pair is conducting and change over is effected rapidly (e.g. 450 picoseconds) by a signal of appropriate polarity on input terminal 42. For example, if 14 is conducting it causes 12 to conduct also, but a positive signal at 42 turns on 10, causing 12 to turn off due to the common emitter resistor 18, and also causing 16 to turn on, which in turn turns off 14. The effect of 14 turning off is to enhance the turn off of 12. In addition, turn off of 14 is enhanced by the positive input signal applied to its control terminal. The output of this circuit appears across a resistor 28, and is a positive or negative voltage according to whether 16 or 12 is conducting. This voltage determines the conduction of a transistor 60 connected to a load resistor 68 via a switching diode 64, and this controls in turn a transistor 70 connected to a coaxial cable 80. The voltage on this thus varies between one level and another, the basic level being set by a D.C. source 84. The input may be pulses at a repetition rate of 400 to 500 MHz.
Patent GB-1087471-A (GB)
Title: Improvements in sealing arrangements for vehicle doors and like displaceable panels
IPC: B60J10/24
Filed: 1965-01-22
Abstract: 1,087,471. Car door sealing. REGIE NATIONALE DES USINES RENAULT. Jan. 22, 1965 [Jan. 24, 1964], No. 3034/65. Heading E1J. A sealing arrangement for a car door 10<SP>1</SP> comprises a rubber strip 1 having two sideby-side longitudinally extending compartments 4, 5 filled with air which communicate with one another through a throttling passage 6 and are arranged one each side of the door frame rim 8. The edges of the strip are clipped on to the rim by a clamping strip 9 and may be joined together (Fig. 4) there being sealing and fixing lips on the surfaces of the edge portions which contact the rim; and also on the surface of the strip contacted by the door 10<SP>1</SP> when closed. A perforated partition may be inserted across the passage 6, the size of the perforations controlling the damping effect produced by the passage 6.
Patent GB-367540-A (GB)
Title: Improvements relating to knicker garments
IPC: A41D1/06
Filed: 1931-01-31
Abstract: 367,540. Knicker garments. FARMER, W., 18, Stoney Street, Nottingham. Jan. 31, 1931, No. 3120. [Class 141.] In knicker garments of the type which are made of two pieces of material and are reinforced at the fork as described in Specification 291,935, [Class 141, Wearing-apparel], each piece is made with two extensions for overlapping at the front and rear. As shown, each piece A or B is identical in shape and comprises a more or less rectangular piece of material with pairs of extensions C, D and E, F. The extensions are undercut and provided with tails G. When assembled, the parts C and E overlap at the front and the parts E, F overlap at the rear, the seaming thereof being completed as well as the seaming of the upper leg portions at K, H, J, L, and the fork seam c, d. The crotch then presents the star-shaped form indicated in Fig. 4. The waistband is preferably inelastic at the front part P and elastic at the rear part Q, at which latter part the material is shirred up.
Patent GB-431530-A (GB)
Title: Improvements in or relating to mills or grinders for paints or other substances in viscous or pasty form
IPC: B02C4/22
Filed: 1934-01-31
Abstract: 431,530. Roller-and-breast mills. ANCIENS ETABLISSEMENTS LE CLEZIO, 46, Boulevard Richard Lenoir, Paris. Jan. 31, 1934, No. 3234. Convention date, Jan. 31, 1933. [Class 59] In a roller-and-breast mill a pair of parallel spaced grinding bars co-operatewith the roller and mechanical means, located in the hopper, is adapted to force the material to be treated under pressure to the space between the grinding bars. The hopper 5 is provided with a feed - screw driven from the rollershaft 7. The feed-screw forces the pasty material into the chamber 3 of the breast 2 where it is ground between the roller 1 and the double bars of the breast. The material to be ground may be conveyed to the hopper by a double screw in which the materials are mixed. Reference has been directed by the Comptroller to Specification 261,322, [Class 59].
Patent GB-983310-A (GB)
Title: Improvements in or relating to swash plate or like pumps or motors
Inventor: THOMA HANS
IPC: F16C32/06
Filed: 1962-01-29
Abstract: 983,310. Reciprocating pumps and motors. H. THOMA. Jan. 29, 1962, No. 3261/62. Drawings to Specifications. Heading FIA. In a swash plate pump or motor, the slippers contacting the swash plate have lubricating grooves in communication with a central bore in the piston which grooves throttle the hydraulic flow to reduce the pressure in the direction of flow and serve to balance the piston thrust. The grooves are spiral, radial zig-zags or radial with tangential ends. Concentric annular grooves may be used in which case communication with the central bore is established by a series of recesses in the swash plate which bridge two grooves as the slipper passes over each recess. As the pump or motor rotates the pressure wave in the liquid as the piston passes from suction to pressure strokes is sufficient to prevent metal to metal contact. The grooves are of relatively narrow width and appreciable depth to produce the desired throttling effect.
Patent GB-495180-A (GB)
Title: Improvements in road traffic control systems
IPC: G08G1/082
Filed: 1937-02-04
Abstract: 495,180. Road signals for controlling traffic. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and DOWNES, F. A. Feb. 4, 1937, No. 3335. Drawings to Specification. [Class 118 (ii)] In a progressive system, having vehicleactuated devices in the main and side roads, means are provided to ensure that at the end of the " prevent " period the right-of-way passes to the main road, irrespective of whether a demand has been received and also to increase the minimum period for the right-of-way. The invention is described as applied to a system of the type set forth in Specification 450,602, embodying vehicle-actuated controllers of the type described in Specification 408,706. An additional relay is operated from the master controller, either manually, by a time switch, or by a traffic integrator, the relay contacts short-circuiting the pads in the main road to give a continual demand for the right-of-way. In a modification, the contact is arranged in the speed timer circuit so that upon operation of the relay, this circuit is broken when the right-of-way is on the main road during the prevent, privilege and vehicle actuated periods of the main road. Consequently, when the right-of-way passes to the main road at the beginning of the privilege period due to an extra contact of the relay of the maximum timer circuit completing the speed timer circuit (or during the prevent period by vehicle actuations of the main road pads), the rightof-way cannot revert to the side road upon a demand being made during the vehicle actuated period following the privilege period of the main road, the privilege period being effectively extended through this period. The speed timer circuit is prepared at the end of this period and may be completed in the usual manner upon a demand being made from the side road.
Patent GB-750462-A (GB)
Title: An automatic stock bar feed mechanism for machine tools
IPC: B23B13/02
Filed: 1954-02-04
Abstract: 750,462. Lathes. LIDKOPINGS MEKANISKA VERKSTADS AKTIEBOLAGET. Feb. 4, 1954 [Feb. 4, 1953], No. 3350/54. Class 83 (3). [Also in Group XXIX] A feed-mechanism for a stock-bar 6 comprises a feed-cylinder 1 moved to and from a position in alignment with a passage in a machine 7, such as a lathe, a first valve 24 operable by gas-pressure to connect the cylinder 1 alternatively to a source of pressure gas and to the atmosphere, a second valve 13 to reverse the first valve and to be operated by the movement of the cylinder, and a manuallyoperable third valve 28 between the first and second valves to open a connection for adjusting the first valve into the position in which gas is supplied to the cylinder. After the stock-bar 6 has been inserted in a conical recess in a plunger 5, the cylinder 1 is swung about a pivot 2 to align the stock-bar with the passage in the machine 7, thus moving the valve 13 to the right to connect a conduit 16 to a conduit 11 which is connected to a source of compressed-air. When the valve 28 is depressed, the valve 24 is displaced to the left to permit compressed air to flow through a pressure regulator 21 (see Group XXIX), and conduits 22, 9 to the space behind the plungers to advance the stock-bar. The pressure in the cylinder 1 may be released without moving the cylinder back to its original position, by depressing a valve 34 to cause a junction-valve 36 to be displaced to the left and hence allow air to flow from the conduit 16 through conduits 33, 35 to restore the valve 24 to its original position, in which the conduit 9 is connected to atmosphere through a port 38. The valve 36 is restored to its original position when the cylinder 1 is moved back to the position shown, the valve 13 then being displaced by a spring 17 to connect the conduit 11 with a conduit 15.
Patent GB-894360-A (GB)
Title: Improvements in or relating to flow controlling devices
IPC: F16K47/06
Filed: 1959-01-30
Abstract: 894,360. Valves. ALADDIN INDUSTRIES Ltd., and BATES, S. W. Jan. 12, 1960 [Jan. 30, 1959], No. 3447/59. Class 135. A flow control valve, particularly for a liquid fuel burner, comprises a helical groove 10 formed in a portion of a stem 4 which is screwed into the valve body 2, the helically grooved portion fitting closely inside a plain bore portion of the body between inlet and outlet passages 1, 3 and formed with a closure member 8 for shutting off flow through the inlet passage. The tops of the threads forming the groove 10 are flattened so that they are in close contact with the plain bore portion.
Patent GB-393544-A (GB)
Title: Improvements in electric terminals
IPC: H01R4/32
Filed: 1933-02-04
Abstract: 393,544. Binding-posts. ALLDAY, N., Connaught Works, Regent Place, and BAIN, R., 25, Beaudesert Road, Handsworth, both in Birmingham. Feb. 4, 1933, No. 3458. [Class 38 (i).] The body 1 has a cup 4 the sides of which may be partly cut away to form gaps 5, 6, Fig. 3, or recesses 19, Fig. 4, to receive the wires to be gripped. A screw 10 carrying a washer 11 fits within the cup and grips the wire with slight bending. The washer is captive on a reduced neck 9.
Patent GB-1448550-A (GB)
Title: Process for the removal of nitrogen oxides from a gas stream
IPC: B01D53/86
Filed: 1975-01-27
Abstract: 1448550 Treating waste gases JAPAN GASOLINE CO Ltd 27 Jan 1975 [31 Jan 1974] 3482/75 Heading C1A Nitrogen oxides present in a waste gas stream, which may optionally contain sulphur oxides, oxygen and steam, are reduced to nitrogen with gaseous ammonia in the presence of a solid iron sulphate catalyst supported on a carrier at a temperature of 250‹ to 550‹ C. and at a GHSV of 1000 to 50,000 hr.<SP>-1</SP>. Catalysts exemplified are ferrous and ferric sulphates and ferrous-ferric sulphate, on carriers which may be selected from alumina, silica, alumina-silica compounds and mixtures, diatomaceous earth, active carbon, zirconia, zeolites, silica-magnesia compounds and mixtures, cordierite and mullite; the carriers preferably have a specific surface area of not less than 50 m.<SP>2</SP>/g. and a pore volume of 0À2 to 1À5 c.c./g.
Patent GB-1174003-A (GB)
Title: A method of Treating Textile Fibres
Inventor: RUDDELL JAMES NELSON
IPC: D02G1/18
Filed: 1967-01-24
Abstract: 1,174,003. Bulky yarns. LINEN INDUSTRY RESEARCH ASSOCIATION. 16 Jan., 1968 [24 Jan., 1967], No. 3507/67., Headings D1F and D1W. An assembly of textile fibres some at least of which have been produced by highly stretching and then severing continuous filaments into staple fibres having high potential shrinkage receives a heat treatment in which different parts of the assembly are subjected to different temperatures so that the highly stretched fibres have variable shrinkage characteristics and a yarn made from the assembly bulks when subjected to a shrinking process. Different parts of the assembly may be subjected to discrete temperatures-for example, room temperature and a temperature producing maximum shrinkage-or to temperatures varying within a given range. In one embodiment a sliver is passed on a lattice through an air curtain comprised of air of two temperatures mixed by a rotary valve which is rotated by a motor to vary the mixture. In a second embodiment a sliver is laid in a zigzag manner on a perforated conveyor which passes through a hot air box which is divided laterally of the conveyor into a plurality of compartments each having a fan and an electric heater-the heaters having different ratings. In a third embodiment the sliver is drawn through a fluidised bed having a variable temperature. The assembly may be heated in the presence of moisture. The fibres may be polyacrylonitrile, polyester, or modacrylic fibres.
Patent GB-354325-A (GB)
Title: Power transmission
IPC: F16D51/28
Filed: 1930-02-01
Abstract: 354,325. Brake blocks acting on drums. BAILEY, A., Rosewood, Dudley, Newcastle, New South Wales, Australia. Feb. 1, 1930, No. 3528. [Class 103 (i).] Relates to clutches and brakes employing balls or rollers for transmitting energy from a rotating member to a driven or stationary member. As applied to a brake, one or more rollers 20, 21 are revolubly carried by each of a pair of arms 16, 17 pivoted at 14, 15 respectively on the end wall of a stationary drum 13 secured to an axle housing, the rollers normally running freely on a brake drum 11 within the drum 13. The pivots 18, 19 of the rollers are coupled by a three-armed floating lever 22 having slotted connection 23 with one of them. The free arm of the lever 22 projects through a slot 13a in the drum 13 and is connected to an operating lever 25, whereby the rollers can be spread apart to apply the brake.
Patent GB-100157-A (GB)
Title: An Improved Electrolytic Condenser or Electrolytic Valve.
Inventor: GILES GEORGES
IPC: H01G9/048
Filed: 1916-03-09
Abstract: 100,157. Giles, G. March 9, 1915, [Convention date]. Resistances.-In an electrolytic valve or condenser capable of use as a lightning- discharger, spiral electrode plates e are attached to aluminium bars f embedded in a central rod c of insulating-material, such as ebonite. The rod c, which is held by a cover b of the cell, is of different diameters so that the bars f are only exposed near the electrodes and near leads g. The electrodes may be perforated. For discharge of lightning in a single-phase circuit, the mains may be connected to two spiral electordes, the cell being made of aluminium and earthed; or four spiral electrodes, two of which are earthed, may be provided. Similarly, three or six spiral electrodes may be used for three-phase circuits.
Patent GB-679016-A (GB)
Title: Method and means for spinning textile yarns
Filed: 1951-06-22
Abstract: 679,016. Spinning textile yarns. MULLER, K. June 22, 1951, No. 3555/49. Classes 120(ii) and 120(iii) Twist is inserted into yarns in two or more stages by passing the yarn through a spinning machine two or more times in opposite directions whilst imposing a greater tension during the reverse than the forward motion. The additional tension may be imposed by a swinging finger, a roller and pawl arrangement, a friction wheel, or strips of pile fabric. In one device, a member 1, rotatable at the speed of its associated spindle, carries a friction wheel 6 which runs freely when the yarn is being spun forward, but is held by a spring pawl 7 when the yarn is reversed. In another device, a similar member 1 carries a pivoted clamping finger which opposes the passage of the yarn during the reverse movement.
Patent GB-636440-A (GB)
Title: Improvements in or relating to pallets for use in conjunction with fork-trucks
IPC: B65D19/16
Filed: 1948-02-09
Abstract: 636,440. Pallets for load-handling. BOTTAMS, F. K., and B. C. B. PALLET CO., Ltd. Feb. 9, 1948, No. 3703. [Class 78 (iv)] A pallet for use with a fork truck has detachable upstanding sides adapted to form with the base of the pallet an open box-like structure. The base of the pallet comprises a flat platform 1 having a space 2 thereunder to receive the forks of a fork truck and formed of boards 1a supported by side runners 3, 31 and preferably by a third runner 5. A further set of boards 4 may form a lower deck. A pair of opposed sides 6, 61 are each formed with uprights 8, 8<SP>1</SP>, 9, 9<SP>1</SP> provided with downward projections 10 which enter slots 11 in the platform 1, each slot having an extension 12 defined by a side runner 3, 3<SP>1</SP> and a block 13. The uprights 8, 9, 81, 91 are formed with opposed guideways for receiving the remaining sides 7, 71 which may be secured in position by clips or catches 15. The sides may be panelled with plywood, wire mesh, or the like.
Patent GB-737082-A (GB)
Title: Improvements in free-piston compressors or gas generators
IPC: F02B71/06
Filed: 1951-02-16
Abstract: 737,082. Elastic fluid turbines. PERROTT, F. C. May 16, 1952 [Feb. 16, 1951], No. 3796/51. Class 110 (3). [Also in Group XXVII] - Gas turbines are supplied by a free piston compressor or gas generator (see also Group XXVII). Air and/or combustion products is or are discharged from the cylinder or cylinders at the end of the compression and/or the start of the working stroke. In Fig. 2 inlet ports 42 are supplied with scavenging air and the exhaust is discharged at 44. During or immediately prior to the injection of fuel, valves 46 are opened and air is discharged. The apparatus is mainly to deliver compressed air although combustion products may also be mixed with the air. Fig. 1 shows a plant in which a gas generator 12 is supplied with air under pressure by an axial flow rotary compressor 10. The exhaust of the generator drives low pressure turbines 14, 16 and the generator also supplies air and/or combustion products through a conduit 15a to an highpressure turbine 19. The turbine 19 may exhaust into the conduit 13 or as shown by the chain dotted line may deliver into the conduct 11. Intercoolers 25, 26 may be provided. A combustion chamber 27 may be inserted between the gas generator and the turbine 19. The inlet ports 41 may be arranged to impart a tangential movement to the air. The compressor 10 may be replaced by a reciprocating compressor driven by the reciprocating movement of the pistons of the gas generator. There may be several generators as in Fig. 2 coupled through a swash plate. There is a tendency for a port 45 to be closed by the pistons as they come together and this prevents the pistons coming into contact. Compressed air may be supplied for a combined steam and gas turbine plant. The time of opening of the valve 46 may be adjusted so that it takes place either shortly before or shortly after the instant when the pressure in the cylinder becomes equal to that beyond the valve. Adjustment may be accomplished preferably automatically in accordance with the delivery pressure in the duct 15a. Adjustment may be effected, for example, either by a pressure controlled throttle valve in the duct 15a or by regulating the amount of fuel injected into the cylinder in accordance with the pressure in the duct 15a. The valve 46 may be formed or arranged to provide a throttling effect. The throttling may be provided by the duct through which the air or combustion products are discharged. Means may be provided for adjusting the point in the stroke at which fuel injection commences.
Patent GB-947082-A (GB)
Title: Preparation of 4-aminodiphenyl amine
Inventor: GARDNER CYRIL
Filed: 1961-02-01
Abstract: 4-Aminodiphenylamine is prepared by hydrogenating in the presence of a catalyst an alkali metal derivative of 4-nitrosodiphenylamine in an alcoholic medium wherein the alcohol is an alkyl alcohol containing from 1 to 10 carbon atoms. The catalyst may be a metal of Group VIII of the Periodic Table, for example, nickel, cobalt, ruthenium, palladium or platinum, which may be mounted on a suitable inert support, e.g. carbon. Alcohols specified are ethanol, n-propanol, isopropanol, t-butanol and ethylene glycol.  The alcohol may contain up to 50% by weight of water.  The reduction may be carried out batchwise or continuously, at a temperature from room temperature to 150 DEG C. and at superatmospheric pressure. The alkali metal derivative of the nitroso compound need not be isolated before hydrogenation and it is sufficient to mix the appropriate alkali metal hydroxide with the nitroso compound and alcohol and hydrogenate the mixture obtained. Specification 835,669 is referred to.