baber/WOPTO huggingface dataset:
Patent GB-393359-A (GB)
Title: Improvements in electric telegraph and like systems
IPC: H04L25/04
Filed: 1932-02-03
Abstract: 393,359. Interrupters. JOLLEY, E. H., 5, Kenton Lane, Kenton, and MARTIN, J. A. S., 28, The Gardens, Vaughan Road, both in Harrow, Middlesex. Feb. 3, 1932, No. 3257. [Class 38 (v).] An interrupter comprises rotating segmented discs 12, 13 co-operating with brushes 14, 15 ; the discs are adjustable in relation to one another so that the duration of the interruptions can be varied. An electromagnet 5 operates a contact 7 'through an armature 11 and link 6, the link 6 being so constructed as to give rise to time-lag or lost motion in the operation of the armature.
Patent GB-841786-A (GB)
Title: Improvements in and relating to a date indicator with indication of the biological rhythms of a human being
IPC: G04B19/26
Filed: 1958-01-31
Abstract: 841,786. Date indicators. WEBER & CO., G. Jan. 31, 1958 [Feb. 27, 1957; Nov. 30, 1957], No. 3257/58. Class 106 (4). In a modification of the invention of Specification 840,044 a case 40, Fig. 1, houses a watch as well as a date indicator comprising four discs 46, 55, 57 and 59 provided respectively with series of 31, 23, 28 and 33 equispaced downward projections through which they can be rotated by a tooth on a sleeve fitted over a control stem 97 hand operated by a knob 97b. Four jumpers 83 complete the movements of the four discs and accurately locate them. A further control stem and knob is provided to advance the date disc 46 independently at the end of short mouths. In another modification five rings 55, 57, 59, 46, 95 are rotated daily in grooves in a block 41 by a key 97 whose bits 98a, 98b and 98c on the rings 59, 57, 55 and whose bit 98d engages teeth 96d and 96e on the rings 46 and 95. The date ring 46 can be turned independently of the others by withdrawing the key 97 to an outer position freeing the bits from all the teeth except for the bit 98d from a tooth 96d. The fifth ring 95 bears legends representing the day names repeated four times and carries teeth 96e. As before, jumpers complete the movements and locate the rings.
Patent GB-1043771-A (GB)
Title: Power conversion system
IPC: H02M7/537
Filed: 1964-01-24
Abstract: 1,043,771. Transistor oscillator inverter circults. GENERAL ELECTRIC CO. Jan. 24, 1964 [Feb. 21, 1963], No. 3263/64. Heading H3T. [Also in Division H2] An inverting arrangement comprises a number of inverters which are connected in series on their D.C. sides, so as to reduce the voltage on individual inverters, and have output transformers with a common core and secondary winding. In Fig. 1 a D.C. source 10 of voltage E supplies N inverters, represented diagrammatically by two switches and a transformer primary winding, connected so that the input voltage on each is E/N. The switching elements may be, for example, relays, thyratrons, transistors, or thyristors. The gating source may control the switches in phase or with a phase displacement to vary the output waveform. In another arrangement (Fig. 2, not shown) the D.C. source 18 supplies two circuits. The first inverter comprises transformer primary winding 62 and transistors 20, 30, 40 and 50. The second inverter comprises primary winding 72 and transistors 80, 90, 100 and 110. Both primary windings are wound on a common saturable core 61 which carries the A.C. output winding (not shown). Each pair of transistors 20 and 30, 40 and 50, 80 and 90 and 100 and 110 operates as a multivibrator. The common core 61 controls the frequency and maintains the four multivibrators in synchronism. The arrangement ensures equal division of the supply voltage between the separate inverters, though voltage sharing resistors and capacitors are used. D.C. loads operating on a fraction of the supply voltage may be connected as shown at 98. Reverse current diodes such as 91 to 94 enable inductive loads to be supplied.
Patent GB-1254995-A (GB)
Title: Backlobe reduction in reflector-type antennas
IPC: H01Q19/02
Filed: 1970-01-23
Abstract: 1,254,995. Aerials. ANDREW CORP. 23 Jan., 1970 [29 Jan., 1969], No. 3321/70. Heading H4A. A main reflector of a microwave aerial has on its edge an extension which departs in shape from the reflecting surface, and which comprises means for producing progressive advances and retardations of phase, within a range exceeding 180 degrees, of rearwardly diffracted radiation fields. The interaction of the variously phased fields results in wide directional diffusion of the diffracted energy. As described, a crosspolarized aerial 10 comprises a circular parabolic reflector 12 and a feed assembly 14. The periphery of the reflector 12 is provided with a welded-on rim 42 formed from angle-stpck, the radially-extending web of which constitutes a twelve-sided diffraction ring 46 around said reflector. Each side of the ring comprises a tangential portion 48 and short flat portions 50. The maximum radial extension of the ring 46 is approximately equal to the wavelength at the operating frequency of the aerial. The reflector 12 is made of aluminium and is provided with a rearwardly extending flange 38. A reinforcement ring 40 is welded to the main body of the reflector 12 and to the flange 38. A matching vertex plate 22 is provided in the centre of the reflector, and through this extend two waveguides 18, 20 to a dual-polarized horn feed 16. Said feed, which is of the kind described in Specification 1,199,226, comprises a square horn surrounded by a square sleeve, a circular intermediate vane, and a circular shielding skirt, which are mounted on a round reflector plate set back from the mouth of the horn (Figs. 5, 7, not shown).
Patent GB-982390-A (GB)
Title: Valve control apparatus in an aircraft boundary layer control systems
IPC: B64C23/00
Filed: 1963-01-28
Abstract: 982,390. Controlling aircraft BLC systems. LOCKHEED AIRCRAFT CORPORATION. Jan. 28, 1963 [Jan. 29, 1962], No. 3377/63. Heading F2R. An aircraft control surface subjected to boundary layer control has mounted on it a cam track 14 operating through a cam follower a valve 11 controlling the supply of air. As described, the cam track is of channel section, and a roller follower is mounted on a slide bar 19 to which is fixed a toothed rack driving a pinion on the shaft of a butterfly valve.
Patent GB-1425819-A (GB)
Title: Web control apparatus
IPC: D01G15/46
Filed: 1974-01-24
Abstract: 1425819 Web condensing guides W A THOMASON JR 24 Jan 1974 [31 Jan 1973] 03425/74 Headings DID and DIN An apparatus for gathering material into a strand has a guide A on each side of the material strand, the guides being movable from an outer to an inner position by a power operated device, a switching device being provided to actuate the power operated device, the resultant strand being delivered by calender rolls 16. The power operated device comprises pneumatic cylinders C e.g. under the control of a sliver 1 presence detector 47 which may also activate a stop motion. The apparatus is shown on a carding engine and the movement of the guides may be initiated by any stop motion on the engine. A suitable pneumatic circuit is illustrated in Fig. 4 (not shown).
Patent GB-305472-A (GB)
Title: Improvements in or relating to the production of stabilised hydrogen peroxide solutions containing alkali
IPC: C01B15/037
Filed: 1929-02-01
Abstract: 305,472. Naamlooze Vennootschap Electrochemische Industrie. Feb. 4, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Diacyl peroxides.-Hydrogen peroxide, particularly in alkaline solution, is stabilized by addition of protein substances such as gelatine, glue, caesin, keratin, glutenin, gliadin, albumin, &c., which may be dissolved in alkali. The stabilized solutions may be used for the preparation of diacyl peroxides.
Patent GB-189021-A (GB)
Title: Drills
IPC: E21B10/36
Filed: 1922-02-07
Abstract: 189,021. Hawkesworth, A. L. Nov. 21, 1921, [Convention date]. Percussive drills.-The end of a detachable rock-drill or like bit is formed with a number of unsymmetrical cutting edges e, e<1>, f, f<1>, h, Fig. 8. The arrangement may be varied, as shown for instance in Fig. 11. The bit is fitted into the shank by dovetail ribs as shown in Figs. 4 and 5, the ribs and grooves tapering across the shank, and being deeper on one side than the other. The passage a<1> for the clearing water is situated eccentrically, and the sides of the bit are recessed at m.
Patent GB-806966-A (GB)
Title: Improved process for the manufacture of alumina supports for catalysts and of such catalysts
Inventor: CORNELIUS EDWARD BERNARD
IPC: B01J21/04
Filed: 1957-02-04
Abstract: An alumina catalyst support is prepared by calcining alumina and thereafter treating it with dry steam and then with formic or acetic acid and finally removing the treating acid and drying the resulting product.  The calcining is preferably effected with dry air at a temperature of about 1300 DEG  F. for at least one hour and the steaming is preferably at 1250 DEG  to 1600 DEG  F. for two to twelve hours.  A 2 to 10 per cent aqueous solution of formic or acetic acid is preferably employed and the steamed alumina may be dipped repeatedly in such solutions for at least one hour for each dipping. The alumina may be prepared from natural aluminium oxide or from the precipitate obtained from treating an aluminium salt solution with an alkali or by treating alumina trihydrate with nitric acid or aluminium nitrate and subsequent extrusion and calcination as in Specification 789,572.  If desired, any alkali metal impurity present in the alumina may be leached out with an acid solution such as acetic, formic or hydrochloric acid after calcining and before the steam treatment and the subsequent treatment with formic or acetic acid.  The treated alumina particles may be impregnated with a catalytic component such as chloroplatinic acid or diamino dinitrito platinum to produce a platinum concentration of 0.1 to 1 per cent. According to an example an alumina prepared by treating alumina trihydrate with aluminium nitrate and shaped by extrusion, was air-dried and calcined at 700 DEG  F. for an hour.  The calcined material was leached with aqueous 10 per cent acetic acid to dissolve sodium contaminants and washed with distilled water.  After drying, the particles were treated at 1350 DEG  F. for four hours with 100 per cent steam and the steamed particles were dipped twice in a 10 per cent aqueous acid solution for one hour each, drained and rinsed with distilled water.  The particles were finally dried for two hours at 220 DEG  F. and calcined in air at 1050 DEG  F.  Group VIII metal catalysts on such alumina supports are particularly useful for the treatment of hydrocarbons, such as reforming naphtha.
Patent GB-1140747-A (GB)
Title: Stabilisation of 1,4-cis-polybutadiene
Inventor: HAAS FRIEDRICH
IPC: C08L7/00
Filed: 1966-01-27
Abstract: 1,140,747. 1,4 - Cis - polybutadiene compositions. FARBENFABRIKEN BAYER A.G. 27 Jan., 1966 [28 May, 1965], No. 3769/66. Heading C3P. A composition comprises a major proportion of 1,4-cis-polybutadiene and 0À1 to 5%, based on the polybutadiene, of an epoxide as stabilizer. Specified epoxides are styrene oxide, diepoxybutane, phenoxy-propylene-oxide, diglycidyl anilide, the diglycidyl ether of 4<SP>1</SP>4<SP>1</SP>-dihydroxydiphenyl-dimethyl methane and 4-tertiarybutyl - phenoxy - propylene oxide. Known rubber additives, e.g. a rubber extending oil and 2,2<SP>1</SP>-methylene-bis-(4-methyl-6-tertiary butyl phenol), 4-methyl-2,6-di-tert-butylphenol and 4 - hydroxy - 3 - 5 - di - tert - butyl - benzylmethyl ether may also be present.
Patent GB-542632-A (GB)
Title: Improvements relating to the refining of scrap iron
IPC: C21C1/00
Filed: 1939-02-04
Abstract: 542,632. Refining iron &c. JORGENSEN, M. VOGEL-. Feb. 4, 1939, Nos. 3771/39 and 474/40. [Class 72] [Also in Group XII] A continuous process for refining scrap metal of the iron group, viz. iron, nickel, chromium, manganese, or cobalt, or any alloy consisting predominantly of one of these metals consists in introducing small pieces of the metal and slag forming materials such as cement raw materials into a rotary kiln having a length substantially greater than that of the flame zone and passing the metal down the kiln in counter-current to the products of combustion, the metal and slag being discharged separately. Iron ore, lime and coke may also be fed into the kiln. Fig. 1 shews a kiln for carrying out the process. Dry raw materials for making cement and cast iron chips are fed respectively from hoppers 16, 14 to a shoot 18 and to the kiln 1. Pulverized fuel and air are supplied to the lower end of the kiln and the combustion products escape to a flue 13. Metal is tapped off at 8 and the cement clinker is delivered to a cooler 6 which may be used for heating air for combustion.
Patent GB-773910-A (GB)
Title: Carding engine for textile fibres
IPC: D01G15/78
Filed: 1955-02-09
Abstract: 773,910. Carding engines. OHNISHI, H. Feb. 9, 1955 [Jan. 25, 1955], No. 3849/55. Class 120 (1). A carding engine is provided with two sets of flats 4, 5 with worker and stripper rollers 16, 17, the stripper 17 being arranged to strip both the roller 16 and the flats 4. Each set of flats is provided with a spring-loaded tensioning device 10 and a cleaning brush 11. A further cleaning brush 15 operates against the inner faces of flats 5.
Patent GB-964446-A (GB)
Title: Improvements in gyroscopic mass flowmeter
IPC: G01F1/84
Filed: 1962-02-01
Abstract: 964,446. Gyroscopic apparatus; measuring fluid flow. W. ROTH. Feb. 1, 1962 [Feb. 13, 1961 ], No. 3884/62. Headings G1C and G1R. In a gyroscopic mass flowmeter in which fluid enters a loop 10 through inlet 15 and flexible coupling 13 and leaves through flexible coupling 14 the loop 10 is pivoted by torsion rods such as 43 about a torque axis within an oscillating frame 31-36, itself pivoted by pairs of crossed springs 37, 38 within a fixed frame 21 so that when the frame 31-36 is oscillated about the vertical axis of pivots 37, 38, the movements of loop 10 about the horizontal torque axis, as detected by pick-offs 71, 72 is a function of the mass flow of fluid through the loop 10. To drive the frame 31-36 a flat spring 63 is arranged with its width perpendicular to the vertical axis of pivots 37, 38 and one end connected to member 31 of the frame 31-36 whilst its other end is moved in a circular path by being attached by a fitting 66 to the inner race of a ball bearing eccentrically mounted within a fitting 65 attached to the shaft 64 of an electric motor 61. The bearing may be prestressed through the spring 63 by tilting the plane of attachment of the spring to the member 31 slightly out of-the horizontal or alternatively by forming the spring with an initial curvature and also by biasing the oscillating frame 31-36 about its vertical axis in one direction against the restraint of spring 63 such as by shimming the pivots 37, 38 or arranging their mounting at a slight angle about the vertical axis with respect to the rest position established by the spring. Specification 964,447 and U.S.A. Specification 2,865,201 are referred to.
Patent GB-113168-A (GB)
Title: Improvements in Tipping Mechanism for Motor or like Wagons or Lorries.
Inventor: ELLIS FRANK EVELYN
IPC: B60P1/14
Filed: 1917-03-17
Abstract: 113,168. Ellis, F. E., and Ellis, R. H. B. March 17, 1917. Tipping-wagons.-Tipping-mechanism for motor or like wagons or lorries comprises a cross-shaft d mounted in brackets c, c', c<2> on the wagon frame a and carrying a winding-drum j, to which is secured a wire, chain, &c. k passing over a pulley i and adjustably secured to the body b at l, the pulley i being carried by an upright h journaled on bosses extending from the brackets c', c<2>, so that the load is taken by these brackets. The shaft d may be rotated by a handle, either directly, for lowering the body quickly, or through. gearing e, f for raising the body. Spring jaws n prevent lateral movement of the upright h. If the wagon body is also arranged to rotate horizontally, the wire k is looped to embrace a rail on the body to allow this rotation.
Patent GB-1163454-A (GB)
Title: Improvements in the process of Manufacturing Petrous items bonded with Synthetic Resins
Inventor: PICON TOMAS COLOMER
IPC: B29C67/24
Filed: 1967-01-26
Abstract: 1,163,454. Moulding tiles. T. C. PICON. 26 Jan., 1967 [29 Jan., 1966], No. 3967/67. Heading B5A. Resin bonded petrous articles, e.g. tiles, are made by partially curing a layer of synthetic resin out of contact with air in a silicone treated mould, placing a second layer of uncured resin and petrous material on the first layer so that the petrous material penetrates into but not through the first layer and curing the layers together. The resin is preferably a polyester, the petrous material gravel or granite and the tile may also comprise a layer of cement or plaster, alone or mixed with sand as a mortar. The tile is preferably made by forming a layer of polyester resin in a silicone treated mould and allowing it to partially cure and covering with a mixture of gravel and polyester resin, both layers then being allowed to cure fully. A layer of cement, plaster or mortar which will bond to the gravel may then be added if required.
Patent GB-692248-A (GB)
Title: Improvements relating to integrating electricity meters of the induction type
IPC: G01R11/36
Filed: 1952-02-14
Abstract: 692,248. Induction type electricity meters. LANDIS & GYR AKT.-GES. Feb. 14, 1952 [Dec. 21, 1951], No. 3991/52. Class 37. The driving electromagnet assembly, Fig. 1, is provided with assembly location or keying members so that the coils on the voltage and current magnets 2, 6 may be removed and the magnets replaced in the same mounting position on a common frame 1 so as to preserve the same originally calibrated disc-rotation air gap 10. The current magnet 6 is formed with recesses 17 and the frame 1 has screws 20 adjacent these recesses. The screws 20 are provided with washers 21 having considerable play on the screw shanks. An interlocking pin and slot 14, 15 permits adjustment of the current magnet 6 to the required permanent position and this latter is marked by manipulating the washers 21 so that they abut against the lips or edges 18 of the recesses 17 and then screwing home the screws 20. In the procedure of changing a current coil the current magnet 6 is removed simply by detachment of fixing screws 16 and subsequently replaced in the position where the lips 18 abut the washers 21. The position of the voltage magnet 2 is fixed on the framework 1 by interlocking pin/ hole and pin-slot 12, 13. The pole-piece 11 is detachable from the central leg 5 at 9 and is secured to a cross-piece 23 which co-operates with spring latch members 26 on the outer legs 3. Each spring latch member 26 comprises a hole 27, Fig. 2, registering with a pin 25 at the respective ends of the cross-piece 23. In the procedure of changing the voltage coil the voltage magnet 2 is detached as a complete unit from the framework 1. The cross-piece 23 is then separated from the legs 3 by taking out screws 30 and lifting latches 26 out of engagement with pins 25. The new coil is placed on the central leg 5 and the cross-piece reinstated into exactly its former position as the latches 26 are snapped home on the pins 25.
Patent GB-596440-A (GB)
Title: Improvements in or relating to radio glide path systems for aircraft landing
IPC: G01S19/15
Filed: 1945-02-16
Abstract: 596,440. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Feb. 16, 1945, No. 4030. Convention date, May 1, 1944. [Class 40 (v)] In a glide-path landing system'similar to that described in Specification 590,491 in which two vertically-spaced aerials arranged laterally of the runway produce patterns having a lobe 16, Fig. 2, of the lower aerial pattern L coinciding with a null of the upper aerial pattern U, and in which a carrier and modulated side-bands are transmitted by the lower aerial and side-bands only by the upper aerial in such a way that the areas on either side of the course-line are characterized by different audiofrequencies, the glide-path is progressively softened towards the runway 31, Fig. 5, by arranging the horizontal distributions of the patterns L, U so that the energy level in the pattern L increases with respect to that in pattern U as the runway is approached. This may be effected by suitably modifying the directive characteristics of the aerials by associated reflectors arranged at different angles. Thus, with the horizontal distribution of the patterns L, U shown in Fig. 5, the ratios of energies received by an aeroplane 32 at successive positions B, A, PG are respectively OE/OD, OG/OF and ON/OM.
Patent GB-123748-A (GB)
Title: An Improved Axle for Aeroplane Carriages.
IPC: B64C1/06
Filed: 1919-02-18
Abstract: 123,748. Stabilimenti Biak Ing. A. Pouchain. Feb. 21, 1918, [Convention date]. Addition to 123,074. Axles. -An aeroplane axle is formed of vertically elongated I-section with the flanges bent or curved, and at the ends the two flange surfaces form arcs of a single circle to take the wheels as described in the parent Specification. Fig. 1 shows one section, but the curvature of either or both of the flanges may be reversed, or one of the flanges may be bent as shown in Fig. 5, or it may be flat. The section of the axle may be varied along its length.
Patent GB-585347-A (GB)
Title: Improvements in or relating to wireless signalling systems
IPC: G01S13/87
Filed: 1943-03-13
Abstract: 585,347. Wireless systems. WILLIAMS, F. C.. March 13, 1943, No. 4156. [Class 40 (v)] In a wireless signalling system for establishing the identity of a responder in communication with an interrogator, the interrogator is arranged to radiate a series of separated radio frequency pulses and the responder is arranged to radiate separate counterpart radio-frequency pulses in response only to certain individual pulses or groups of pulses of the interrogation pulse series, selection of the pulses in response to which counterpart radiation takes place being controllable at the responder so as to provide a characteristic coded response. Fig. 1 shows a form of responder circuit in which a common aerial circuit L3, C20 feeds incoming pulses from a radiolocation transmitter via condenser C19 to the grid g1 of a triode V2 which is supplied with quenching oscillations from a valve V1 to act as a super-regenerative' receiver. The amplified pulses are fed to the grid g2 of a second triode in V2 which acts as a self-quenching oscillator, the anode a2 being back-coupled to the grid through condenser C12 and a circuit including a rectifier V3 and a pulse amplifier V4. The output from V4 is fed to the grid g2 through condenser C13 and resistances R9, R10. The circuit continues.to oscillate until the rectified voltage from V3 blocks V4. Thus responder pulses are radiated from the common aerial. The pulses are coded by means of constantly rotating cam switches S4, S3, which respectively make and break the anode supply circuit of V2, and energize intermittently a relay S5 which serves to connect a condenser C14 in parallel with C13 to vary the width of a pulse. By means of a selector switch S1, three variations are possible. The shaft driving the switches S3, S4 also drives condenser C20 continuously to sweep the tuning frequency through a range which includes several radiolocation transmitters. The output from V4 is also fed through R13 to a monitoring meter M1 and telephone jack P4. The rosulting coded sequences of pulses are picked up at the radiolocation station and are made to appear on the same time base as the reflected echoes from the same craft. Alternatively, the apparatus may work at frequencies removed from the radiolocation frequencies. In a modification, Fig. 2 (not shown), the circuit includes means for paralysing the responder during operation of a transmitter located on the same craft. Means are provided for stabilising the gain of the super-regenerative receiver in the presence of random noise as described in Specification 585,353. The responder may be stationed on a fixed beacon so as to supply a location to a pilot using an interrogator on a mobile craft.