baber/WOPTO huggingface dataset:
Patent GB-505616-A (GB)
Title: Process for obtaining beryllium and beryllium alloys
IPC: C22B35/00
Filed: 1937-08-07
Abstract: 505,616. Beryllium; alloys. SERI HOLDING SOC. ANON. Aug. 7, 1937, No. 5029/39. Convention date, April 29, 1937. Divided out of 505,508. [A Specification was laid open to inspection under Sect., 91 of the Acts, Dec. 7, 1937.] [Class 82 (i)] The process described in the Specification 505,508, is applied to the reduction of double fluorides of beryllium and alkali metals, with or without a minor proportion of anhydrous beryllium fluoride free or substantially free from oxide, in the presence of or in admixture with a halide of another metal. The preparation of beryllium-aluminium and berylliumnickel alloys with 75 and 25 per cent of beryllium respectively, is specifically referred to.
Patent GB-317494-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F29/04
Filed: 1928-02-17
Abstract: 317,494. Gee, F. W., and Ferranti, Ltd. Feb. 17, 1928. Systems depending on the use of static transformers.-In a regulating transformer, two pairs of tapping switches are associated with the secondary windings, the switches of each pair being adapted to be moved in turn while the load current is diverted so that the load circuit is not interrupted, the pairs of switches being also adapted to be moved to such relative positions that either positive or negative boost may be obtained at will. In one arrangement, Fig. 1, two secondary windings c are associated with a primary winding a, one pair of tapping switches d being connected to one end of the primary n of a boosting transformer. The other pair of tapping switches e are connected through an autotransformer winding k to the other end of the winding n, circuit breakers f being provided so that the load current may be diverted while tap changing is in progress. Boost of one sign is reduced to zero by moving the switches e by steps in turn to the positions occupied by switches d, boost of opposite sign being obtained by moving the switches d to a position above switches e. In an alternative arrangement, Fig. 2, a single secondary winding c is employed. In this case the tapping switches are associated with two primaries n on the boosting transformer, the reactance between these windings being relied on instead of the winding k, Fig. 1, for reducing circulating current when the tapping switches of a pair occupy different positions tap changing is being effected. Fig. 5 shows a polyphase arrangement in which three pairs of secondaries c are associated with a deltaconnected primary a. These secondaries are arranged to apply variable and reversible boost obtained as described above to the secondary side of a power transformer comprising a deltaconnected primary n associated with secondary windings m connected through auto-transformers k to one set of tapping switches e, the other set of tapping switches d being connected together to form the star point of the secondary winding system. In an alternative polyphase arrangement, the auto-transformers k are dispensed with, the secondary windings m being split to provide the, necessary impedance to circulating currents occurring during tap changing.
Patent GB-1510004-A (GB)
Title: Apparatus for selectively circulating fluid through a temperature-sensitive zone
Inventor: RIEDE GERHARD
IPC: A61M1/16
Filed: 1977-02-08
Abstract: 1510004 Dialysis apparatus GAMBRO AB 8 Feb 1977 [26 Feb 1976] 05085/77 Heading B1E Apparatus for selectively circulating fluid through a temperature - sensitive treatment zone, e.g. dialysis fluid through a blood dialysis unit 1, comprises a heater 15 for heating the circulating fluid to a temperature .greater than that required for the treatment zone, a signal - generating fluid sensor 17 through which the fluid can be circulated, control means 18 responsive to the sensor signal to limit operation of the heater to when fluid is passing through the sensor and flexible fluid supply and discharge conduits 4, 5 for selective connection to the zone or sensor whereby the heater is operative when the conduits are connected to the sensor but inoperative when the conduits are connected to the treatment zone. The above apparatus permits heating of the fluid for purification or sterilization purposes without the danger of having the blood supply of a patient connected to the dialysis unit.
Patent GB-163484-A (GB)
Title: Improvements in tools especially relating to counterbores, reamers and spot-facing cutters with or without adjustable or interchangeable pilots
IPC: B23B51/10
Filed: 1920-02-19
Abstract: 163,484. Sandlin, F. F. Feb. 19, 1920. Cutters and cutter-bars. - The internal, coned part b<1> of a rounterboring, facing &c. cutter b engages and thereby closes the correspondinglybevelled, split portion a<3> of the tool shank a<1>, on to a pilot centre c.
Patent GB-1167121-A (GB)
Title: Hydraulically Activated Diaphragm Pump.
IPC: F04B43/067
Filed: 1967-02-02
Abstract: 1,167,121. Diaphragm pumps. YARWAY CORP. Feb. 2, 1967 [July 28, 1966], No. 5103/67. Heading F1A. A hydraulically-actuated diaphragm pump comprises a diaphragm 25 with an actuating chamber 28 and a pumping chamber 29, the liquid in the actuating chamber being pulsated to reciprocate the diaphragm by a reciprocating piston 46 mounted in a rotor 41 and engaging a ring 73 in a control member 55, the eccentricity of which is manually adjustable by a vernier control, Figs. 3 and 5 (not shown). Air collecting in the actuating chamber 28 is vented into passages 80 by a shaft 85 having pockets 86, the shaft being rotated in steps by a cam 95 on rotor 41 acting through follower 93, lever 91 and clutch 92. The pockets 86 transfer air and/or actuating liquid from below to above shaft 85, and actuating liquid from above to below the shaft, the actuating liquid in passage 80 being made up from casing 23 through passage 84. Loss of actuating liquid from chamber 28 is also made up automatically through valve 97, a manual control 101 being provided for draining or initially filling chamber 28. An adjustable pressure-relief valve, Fig. 6 (not shown) is provided to prevent overloading of the actuating circuit.
Patent GB-1089827-A (GB)
Title: Transistor inverter with only one transistor
IPC: H02M7/5383
Filed: 1965-02-05
Abstract: 1,089,827. Supply systems for discharge lamps. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Feb. 5, 1965 [Feb. 5, 1964; April 30, 1964], No. 5111/65. Heading H2H. [Also in Division H3] An inverter oscillator comprises a capacitor 2 which is charged through an inductor 1 in series with the primary winding 3a of a transformer and discharged through the winding and a transistor 4, the load (shown here as a discharge lamp 7) being connected in series with the secondary winding of the transformer and the base of the transistor. The circuit enables the load to be energized during both half-cycles using a single transistor. In operation the capacitor is charged resonantly through the inductor, the secondary winding voltage maintaining the transistor non-conductive until the charging current reverses whereupon the capacitor discharges through the collector circuit of the transistor. The lamp discharge path is energized during one half cycle of the base current and on the other by the current through diode 6. In Fig. 4 (not shown) the lamp is provided with a glow discharge starter switch (8) which provides a heating current path for the electrodes.
Patent GB-414591-A (GB)
Title: An improved bagatelle game board
IPC: A63F7/00
Filed: 1934-02-16
Abstract: 414,591. Table games. HOLDEN & BROOKE, Ltd., and BROOKE, G., Sirius Works, West Gorton, Manchester. Feb. 16, 1934, No. 5223. [Class 132 (ii).] An inclined bagatelle board is provided with a central runway 1, balls projected up which rebounds from a member 3 pivoted at 4, either to the right or left according to which position the member 3 is rocked through a lever 6 pivoted at 7. The runway 1 has a ball magazine 10 and a hump 11 over which the balls are moved to playing position.
Patent GB-704781-A (GB)
Title: Solvent refining of oils
Inventor: HANSON THOMAS KENNETH
IPC: C10G21/00
Filed: 1951-03-05
Abstract: In the solvent extraction of hydrocarbon oil fractions into relatively more paraffinic and more aromatic fractions the extract phase from one feed stock is employed as solvent for the extraction of a second fraction of overlapping or closely adjacent boiling range to the first.  The second fraction is preferably the higher boiling. Conventional solvents and apparatus may be used to extract gasolene, kerosene, Diesel fuel, lubricating oils, aromatic cycle stock obtained in catalytic cracking, and fractions which have been subjected to hydrogenation, hydroforming, isomerization and the like. Light or burning fractions of increasing boiling point may be extracted using SO2 when the sulphur content of the aromatic extract increases from stage to stage while that of the raffinate decreases. Make up solvent such as SO2 or a modifying solvent may be added in the later stages.  Thus, a gasoline extract is used for kerosene extraction, the kerosene extract + SO2 used for gas oil extraction, and this extract + benzol used to extract lubricating oil.  Solvents recovered from the several extracts and raffinates are treated in a common recovery system.  Specification 607,945 is referred to.
Patent GB-732501-A (GB)
Title: Improvements in and relating to withdrawable electric apparatus
Inventor: SULLY JOHN RHYS
IPC: H05K7/14
Filed: 1953-02-25
Abstract: 732,501. Mountings for electrical and electronic apparatus. ENGLISH ELECTRIC CO., Ltd. Feb. 19, 1954 [Feb. 25, 1953], No. 5253/53. Class 40 (5). In electrical apparatus, including for example an electronic amplifier, and comprising a cabinet 1 within which are mounted a number of withdrawable units 3, 4 and 5, each comprising a chassis 10 and having a rear panel 13 to which is attached one end of a flexible strip 14 bent into the form of a U and having its other end fixed with respect to the cabinet 1, the flexible strip 14 serves as a support for flexible electrical conductors leading from the corresponding chassis 10 to other units in the cabinet or to apparatus or power supplies external thereto. As shown more clearly in Fig. 2, the flexible strip 14 has a transverse curvature which is preferably preformed and this curvature is maintained in the lower leg of the U by a suitable shaping of its point of attachment to the frame of the cabinet. The strip is preferably made of spring steel although it is stated that a resilient plastic material may be used. Leads 18 from the chassis are cleated to the strip 14 as at 24 and are connected to leads 20, 21 via connecting blocks 19. The leads 20, 21 make connection with the apparatus on the chassis via plug and socket members 22 and 23.
Patent GB-1414409-A (GB)
Title: Control circuits for fuel cells
IPC: H01M8/04537
Filed: 1973-02-02
Abstract: 1414409 Automatic control of fuel cells ROBERT BOSCH GmbH 2 Feb 1973 [5 Feb 1972]  5261/73 Headings G3N and G3R The output voltage of a fuel cell is maintained by monitoring the passage of a predetermined amount of electric charge supplied to a load circuit and automatically feeding a corresponding quantity of fuel to the cell. As shown, a fuel cell 2 supplies a load 3 over a circuit 1 including a main switch 13, monitoring circuit 4 and voltage regulating transistor 17. Fuel for the cell is circulated in a closed loop 10, 11 by a pump 8 which can be driven by an electric motor 7 through a magnetic coupling 60. In operation, when switch 13 is closed, a differentiating circuit 21 supplies an enabling pulse to transistor 17 which subsequently regulates the load voltage in accordance with Zener diode 58 and differential amplifier 51. Circuit 21 also supplies a pulse to monostable multi-vibrator 12 which, through a regulating circuit 24 including a digital counter, turns on a transistor 64 which energizes the motor 7 for a predetermined time. Monitoring circuit 4 includes a current-sensing resistor 31 and integrator 32 which charges a capacitor 36 until a voltage switch 33 is actuated and supplies a pulse to multi-vibrator 12. The arrangement is such that the pump 8 is thereby caused to deliver an amount of fuel electrochemically equivalent to the electrical energy loss from the cell detected by the monitoring circuit 4. A differentiating circuit 42 supplies a pulse to monitor reset circuit 34 each time the multivibrator 12 produces an output. Regulating circuit 24 includes sets of contacts 26-28, 39-41 which are changed progressively to increase the frequency or duration of pump actuation in order to compensate for decreasing fuel concentration. Multi-vibrator 12 may also receive pulses from a voltage-sensitive switch 22 if the fuel cell output voltage, detected by line 19a, falls below a predetermined value. A further switch 23 acts to disable voltage regulating transistor 17 and thereby de-energize the whole system if the fuel cell voltage falls below a minimum safe level.
Patent GB-966478-A (GB)
Title: 4-hydroxy-3-keto-í¸-steroids
IPC: C07J75/00
Filed: 1963-02-08
Abstract: 4-Hydroxy-3-keto-D 4-steroids of the androstane and 19-nor-androstane series are obtained in a process wherein the corresponding 4-chloro-3-keto-D 4 steroid dissolved in a tertiary aliphatic alcohol is reacted with an aqueous alkali metal hydroxide under an inert gas atmosphere. Specifications 838,772, 848,288, 864,610, 864,611, 864,613, 876,721 and 888,665 are referred to.
Patent GB-621420-A (GB)
Title: Improvements in or relating to darts
IPC: F42B6/00
Filed: 1947-02-24
Abstract: 621,420. Darts. WRIGHT, W. Feb. 24, 1947, No. 5307. [Class 132 (iii)] A dart body; which is nosed towards each end and preferably supplied with nose caps, has a needle or point projecting from each end, each needle being arranged as a spine on which a flight may be mounted. The flight may be formed with an axial tubular portion to fit over the needle which is being used as the rear end of the dart, and is preferably attached to the dart. The point may have an enlarged screw portion adjacent to the end of the dart body and the end of the axial tubular portion of the flight may be threaded internally to co-operate therewith, or the nose-piece may be threaded or a bayonet attachment may be used. The points may be separate or integral (passing entirely through the body), of any suitable material and weighted if necessary.
Patent GB-937647-A (GB)
Title: Improvements in or relating to liquid pumps
IPC: F04B15/08
Filed: 1962-02-12
Abstract: 937,647. Reciprocating pumps. L. TYREE. Feb. 12, 1962, No. 5348/62. Class 102(1). A reciprocating pump comprises an intake chamber and inelt 32, a compression chamber 34 connected thereto by a passage 36, which is formed by a plunger 42 and sleeve 43 slidable therewith. The end 42V of the plunger and the lower aperture 43V in the sleeve 43 cooperates to form a valve which closes on the compression stroke. Towards the end of the compression stroke, a crosshead 28 contacts a sleeve 37 which is moved downwardly to close the inlet 32. On the return stroke, a locking sleeve 44 on the sleeve 43 is contacted by shoulders 42S on the piston rod 42 and at the end of this stroke, the sleeve 44 moves the sleeve 37 upwardly to uncover the port 32. A pivoted spring loaded lever 50, operated by a rack 37T and pinion 49, holds the sleeve 37 in position during each piston stroke. The intake port 32 may consist of a number of radially disposed ports which communicate with a manifold surrounding the cylinder 30, Fig. 5 (not shown). In an alternative method of actuating the sleeve 37, the upper end thereof is located in the crosshead housing, which is correspondingly elongated. A pin on the piston rod engages in a slot in the sleeve and, at the ends of the piston stroke, a small rotational movement is imparted to the sleeve 37 to open or close the port 32.
Patent GB-793590-A (GB)
Title: Pressure release device, particularly for gas-tight accumulators
IPC: H01M2/12
Filed: 1956-02-21
Abstract: 793,590. Pressure-relieving devices for fluids. ACCUMULATOREN FABRIK AKT.-GES. Feb. 21, 1956 [Feb. 28, 1955], No. 5399/56. Class 135. [Also in Group XXXVI] A pressure release device, particularly for an electric accumulator, comprises a membrane 2 of soft rubber and a superposed thinner membrane 3 of harder material, e.g. plastics, which are torn when the interior pressure exceeds a permissible value. One of the membranes may have a small hole or knife cut. The space between the transparent cover 7 and the membrane 3 is filled with a sound-absorbing material 6 impregnated with an indicator solution which changes colour on ejection of the electrolyte from the accumulator consequent on tearing of the membranes.
Patent GB-511585-A (GB)
Title: Process for the preparation of vitamin-enriched foodstuffs
IPC: A23L33/15
Filed: 1938-02-21
Abstract: 511,585. Vitaminized food preparations. OCEAN MAGYAR KONSERVGYAR ES KERESKEDELAU, R. T. Feb. 21, 1938, No. 5408. Convention date, Feb. 20, 1937. [Class 49] [Also in Group IV] Vitamin-enriched food products are prepared by adding to foodstuffs vitamin-rich paprika extract, packing in tins or other containers, evacuating, hermetically sealing the containers under vacuum, and sterilizing by heating. The vitamin extract may be obtained from paprika of high vitamin content, particularly of Vitamin ' C, by cutting the fruit, freed from stalks and seed capsules, into shreds so as to remove capsaicin veins, passing through crushing, trussing and filtering or straining machines, preferably with exclusion of air as by using an atmosphere of nitrogen, passing the juice obtained into air-free containers from which it is sucked into evaporators of acid-proof steel where it is evaporated under high vacuum and then filling into vessels which are sealed in nitrogen. In examples (1) a goulash is prepared by mincing and seasoning meat, the paprika extract is added with exclusion of air, and after filling into cans and sealing, sterilization is effected by heating at 121‹C. for 55 mins. (2) the fleshy part of a vegetable marrow is shredded and placed in layers in a tub and sprinkled with vinegar and salt and left under compression for 24 hours ; it is then boiled till tender, cooled and drained and dill flavouring liquor prepared by boiling fresh dill with small quantities of salt and sugar and straining is added and the mixture packed in glass jars which are evacuated, sealed and sterilized.
Patent GB-474876-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/24
Filed: 1937-02-24
Abstract: 474,876. Vacuum cleaners. JACKSON, L. MELLERSH-, (Quadrex Corporation) Feb. 24, 1937, No. 5504. [Classes 8 (i) and 8 (ii)] A motor - suction cleaner comprises an annular, coaxial unit structure, the handle and filter being arranged above a centrally - arranged updraught dirt-laden air duct and a dirt-receiving chamber which has a manually-operable, air - tight door with locking-means therefor. The motor-suction-unit 1 has a nozzle 2, an opening 6 in the casing which permits the passage of cooling- air, and an opening 9, closed by a cover, for inspection. A middle section 10 with an updraught tube 11 and dust-collector chamber may be made of transparent material, e.g. cellulose acetate. A transparent door or gate 12 is provided having a latch or lock 13. The filter and filter cover are connected to a spider 14. The cover has ventilating-ports 16. A fibre top 18, handle 19, yieldable floor wheel 24, and switch are arranged at the top. The cord inlet has a strain relief 23. The motor has cast inner and outer housings 30, 31, Fig. 2, which are extended upward to provide the tube 11 and chamber 32. The handle is fixed in a socket 35. The handle may pass out through the top 37. A fabric filter is arranged between the web 14 and a clamp ring 41 and a cap 37. An inner fabric tube 42 carries up the dirtladen air. With a covered filter the internal handle-tube is unnecessary. The motor 45 drives a doubly-truncated, cone-type blower 46. The door 12 may be slotted to hold packing. The transparent part 60 around the tube 11 may rest in grooves and the parts 14, 1 may be connected by bolts or the rods passing through slots in the transparent part. The motor, electric conductors may pass through one of these slots. A spiral deflector 65 is provided in the air - way to collect the dirt - laden air and provide a separate space between the casings through which is passed clean ventilating air by a small fan from apertures around one brush to apertures around the other. Specification 474,875 is referred to.
Patent GB-433721-A (GB)
Title: Improvements in and relating to fabrics
IPC: D03D15/00
Filed: 1934-02-20
Abstract: 433,721. Fabrics containing yarns of cellulose strips wound round cotton &c. BLEIBLER, E., 34, Rue Charles Quint, Ghent, Belgium. Feb. 20, 1934, No. 5599. [Classes 120 (iii) and 142 (iv)] A fabric for seats, cushions, wall coverings and for covering shoes, girdles, &c. has warp and/or weft threads of cotton, linen, or hemp yarns, &c. wound round with narrow strips or bands of regenerated cellulose film. The strips &c. are wound helically around the cotton, &c. threads with their edges overlapping and they may be softened by steam. When being wound they may be passed over a cloth moistened with a water soluble fat, or glycerine and may be provided with an adhesive such as gelatine, gum or waterproof glue to which plastifying agents such as glycerine and oils may be added. The films may be dyed or coloured and may have a matt, glossy, smooth, or corrugated surface.
Patent GB-875338-A (GB)
Title: Improvements in and relating to a method and device for ingotmould casting of effervescent ferrous compounds
IPC: B22D27/00
Filed: 1960-02-18
Abstract: 875,338. Casting-processes. DAUSSAN, H. J. Feb. 18, 1960 [Feb. 26, 1959], No. 5739/60. Class 83 (1). Top-pouring of an ingot is carried out in a substantially confined atmosphere so that the pressure exerted by the reducing gases evolving from the cast metal and kept thereabove rapidly rises and stops any further evolution, and at the end of pouring a vaporizable agent is applied to a peripheral portion of the upper surface of the ingot to cause it to solidify towards the centre and subsequently seal the top of the shrinkage cavity filled with a portion of the reducing gases so that it may be easily closed by rolling. The pouring jet is confined by a destructible tube G having an upper rim 17 for sealing engagement with the ladle P, and passing through an annular metal container R, which contains the cooling agent e.g. water, liquid CO 2 , carbon snow. The container R is sealed to the sheath G and to the top of the mould and tubes 14 are supported by it and carry e.g. a pressure gauge 15, an adjustable vent 16 &c. In a modification, Fig. 6, the annular container comprises passageways formed by corrugated cardboard. Specification 842,687 is referred to.