baber/WOPTO huggingface dataset:
Patent GB-594306-A (GB)
Title: Method and apparatus for burning solid fuels
IPC: F23K3/00
Filed: 1944-12-07
Abstract: 594,306. Steam-generator &c. furnaces. ANTHRACITE INDUSTRIES, Inc. Dec. 7, 1944, No. 24528. Convention date, Sept. 8. [Class 51 (i)] Apparatus for burning solid fuel comprises an imperforate tube 10 of small diameter surrounded by a jacket 32 for heating water &c. fuel being fed by worms 23, 12 to one end of the tube so as to form an elongated column and combustion air being drawn in at the opposite open end 11 by a fan 28. The fuel is ignited at the central portion of the tube and the combustion products are drawn by the fan 28 through the entering fuel which is thus preheated and also serves to filter out fly ash from the gases. The tube is not more than eight inches in diameter, the particular diameter used being so chosen, in relation to the size of fuel, that it is no larger than eight lumps lying side by side.
Patent GB-1407372-A (GB)
Title: Boot or shoe with tensioned insole member
IPC: A43B13/12
Filed: 1973-05-23
Abstract: 1407372 Boots and shoes B SCHWARTZ 23 May 1973 24575/73 Heading A3B A shoe has an outer sole 10 of leather or heavy plastics to which a rubber mid-sole 12 is attached by its ends in a prestretched condition. An insole 20 is attached to the mid-sole 12 so that the mid-sole is slidable between the insole 20 and the outer sole 10 when the shoe is flexed in use.  Between the toe portion 16 and the heel portion 14, the mid-sole 12 is formed with a number of longitudinal slits 18 so that the central portion becomes a series of rubber strands. The mid-sole may be made up from several plies of rubber.
Patent GB-1013309-A (GB)
Title: Improvements in and relating to the manufacture of aluminium organic compounds
Inventor: MARX ANNEMARIE
IPC: B22F9/00
Filed: 1963-06-20
Abstract: An activated aluminium suitable for use in the manufacture of organo-aluminium compounds is prepared by atomizing with air in e.g. a Laval nozzle an aluminium melt at e.g. about 800 DEG  C., selecting particles of preferably below 300 m , and grinding them in suspension in alkyl aluminium compound with exclusion of oxygen, e.g. under nitrogen.  A suspension of the activated aluminium in tri-isobutyl aluminium plus additional tri-isobutyl aluminium may be used to prepare diisobutyl aluminium hydride, and in a continuous process, 23 of the product may react with isobutene to reform triisobutyl aluminium. Specification 770,707 is referred to.
Patent GB-532365-A (GB)
Title: Improvements in and relating to gas valves for liquid heaters
IPC: F24H9/20
Filed: 1939-08-28
Abstract: 532,365. Fluid-actuated valves. JUNKERS & CO., GES. Aug. 28, 1939, No. 24684. Convention date, Sept. 6, 1938. [Class 135] A valve device for controlling the gas supplies to the main and lighter burners of a liquid heater actuated by the flow of water to the heater has a compressible resilient intermediate device located between the gas valves and the actuating member and has an adjustable stop for limiting the movement of the valves. The actuating diaphragm 15 is subject to the throat and full-bore pressures in a Venturi pipe 12 in the conduit 13 supplying water to a heater 10 provided with a draw-off valve 45. A valve 34 controlling the supply to a lighter burner 42 has a lost-motion connection with a main gas valve 36 urged towards its seat by a spring 37. Spindles 21, 32 operatively connected to the diaphragm and lighter valves respectively are coupled by a spring 23 arranged between abutments 30, 22 and constructed so that in the unstressed condition it is weaker than the spring 37 and in the stressed condition stronger. The stop comprises a tubular member 26 moved against the action of a spring 29 by a handle 28 moving in an inclined slot provided with a notch and adjustable stop to locate the stop in the shut-off, lighting and supply positions. In the shut-off position the spring 23 is stressed so that when the stop is moved to the lighting position the lighter valve opens. Further movement of the stop and the opening of the draw-off tap 45 permits the diaphragm to open the main gas valve.
Patent GB-1507357-A (GB)
Title: Pressure sealing arrangements for high pressure vessels
IPC: F27D3/00
Filed: 1975-06-10
Abstract: 1507357 Seals SANDO IRON WORKS CO Ltd 10 June 1975 [10 June 1974 12 June 1974 (2) 25 Dec 1974] 24733/75 Heading F2B In a sealing arrangement for fibre removal from a pressure vessel 1, the fibre passes through a passage 3 in a seal block 2 carrying a resilient member 4 having tapered lips 6 bearing on nip sealing rolls 7, 71.
Patent GB-154561-A (GB)
Title: A device for indicating the time in kinematographic entertainments
IPC: G03B15/08
Filed: 1920-08-26
Abstract: 154,561. Wõller, K. Oct. 28, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Kinematograph picture films; lantern slides.- Information as to the time is projected on to the screen in kinematograph entertainments by means of a clock with a transparent dial and non-transparent hands. The clock mechanism may be inserted in the film, or a separate projection apparatus may be employed. The clock mechanism is sufficiently flat to pass the slit of the projection apparatus. Advertisements may be arranged around the clock.
Patent GB-748017-A (GB)
Title: Improvements in and relating to automatic closing devices for doors
IPC: E05F3/04
Filed: 1952-10-03
Abstract: 748,017. Door-operating appliances. STRIKFELDT, W. STRIK-. Oct 3, 1952 [Oct. 4, 1951], No. 24805/52. Class 65 (1). A door closing device built into hinged door 1 so as to be invisible comprises a link 6 pivoted at one end to a bolt 7 secured to the fixed frame 8 at a point offset from the hinge axis and at the other end to a rod 3 slidably mounted 'in a casing 2 fixed within the door, a door-closing spring 4 being interposed between the casing and a nut 5 screwed on the end of the rod. The casing, which constitutes an oil reservoir, contains an open-ended cylinder 9 which is clamped at 10 to rod 3 and is provided in its closed end with a passage 11 controlled by a radially slidable valve 12. The cylinder contains a piston 14 anchored by straps 15 to a bolt 16 secured to the casing, the piston being provided with passages 17 controlled by a spring-biased plate valve 18. Opening the door withdraws rod 3 from the latter to compress spring 4 and move the cylinder over the piston, the oil thereby flowing freely through the passages 17 into the closed end of the cylinder. In the early part of the closing movement of the door, oil from the closed end' of the cylinder flows comparatively unchecked through passages 20 in the cylinder wall, the final part of the movement being checked by the flow of oil through the valve-controlled passage 11.
Patent GB-616045-A (GB)
Title: Improvements in and relating to distortion reducing circuits for frequency modulatedoscillation systems
IPC: H03D3/26
Filed: 1946-08-22
Abstract: 616,045. Impedance networks. PHILIPS LAMPS, Ltd. Aug. 22, 1946, No. 25081. Convention date, Nov. 13, 1942. [Class 40 (viii)] [Also in Group XL (c)] In a circuit arrangement for reducing the distortion that occurs in conducting frequency modulated oscillations through one or more tuned circuits represented as L1, C1, an inductance L2 and a capacity C2 in series are tuned to the central frequency of the oscillations and, together with a damping resistance R in series, are connected in parallel with the cirduit L1, C1, the values being adjusted so that L2=.32R<2>C1. The third harmonic, the main factor in the distortion problem is stated to be reduced to negligible proportions by this adjustment.
Patent GB-694872-A (GB)
Title: Improvements in and relating to platen printing presses
Inventor: THOMPSON FRANK SYDNEY
IPC: B41F1/26
Filed: 1950-10-13
Abstract: 694,872. Printing-machines. THOMPSON & SON, Ltd., T. C. Oct. 13, 1950, No. 25093/50. Class 100(ii) The stationary type-bed, to which the chase 12 is secured, of a movable-platen printing-machine, comprises an exactly-machined high grade metal plate 8, detachably secured to a part 6 of the machine frame, which is in the form of a casting. The plate 8 rests on a ledge 7 and is secured by screws passing into the plate from the back but not reaching to the front, being interchangeable with plates of varying depth according to the type height. The chase 12 rests on a ledge 8a on the plate and is secured by a clamp 13. The casting need not be of as high grade metal as the plate.
Patent GB-1137044-A (GB)
Title: Well pipe elevator
IPC: E21B19/06
Filed: 1967-05-31
Abstract: 1,137,044. Boring earth &c. DRESSER INDUSTRIES Inc. 31 May, 1967 [7 June, 1966], No. 25187/67. Heading E1F. A pipe elevator comprising pivoted jaws 10, 11 has a guard plate 20 which prevents the opened jaws being engaged by the pipe, and a roller 23 which prevents the pipe moving out bf the opened jaws. The jaws and plate are mounted on a hinge pin 14, and the roller is mounted on the plate and has an axle 24 which is bent to guide the jaws. A further guard which may comprise a horseshoe shaped member mounting a series of rollers may be carried above the jaws.
Patent GB-668620-A (GB)
Title: Improvements in the production of aluminium chloride
IPC: C01F7/58
Filed: 1950-10-17
Abstract: In the production of aluminium chloride by reacting pulverulent alumina with chlorine and carbon monoxide in the presence of alkali aluminium chloride, a ratio of 0.05-1 part of the latter per part alumina is employed.  Alumina prepared by calcining aluminium hydroxide at below 1000 DEG C. so that it contains 0.5-3 per cent water is preferably used.  Coarse grained material, particularly petroleum coke, is preferably added to the reaction mixture.  The vapours from the furnace, prior to condensing the aluminium chloride, may be led over surfaces heated to about 180-300 DEG C. or through say, a coke filter to separate entrained alkali aluminium chloride and impurities.  The alkilis aluminium chloride and coke discharged from the bottom of the shaft furnace used are recycled.
Patent GB-599884-A (GB)
Title: Improvements relating to automatic telephone and like selective signalling systems
IPC: H04Q1/36
Filed: 1945-09-28
Abstract: 599,884. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and VOSPER, W. T. Sept. 28, 1945, No. 25281. [Class 40 (iv)] An impulse correcting circuit contains a ! " watching " relay having respective release and operating lags equal to the required minimum durations of the make-and-break portions of the impulse and intervenes, if necessary, to ensure that an impulse repeating relay produces impulses having at least the minimum make-and-break periods. In the embodiment shown the impulses received by relay A are retransmitted by the high speed impulse repeating relay IR under control of the watching relay IC whose coils are wound differentially so that the charging current of condenser QA delays the operation of the relay and discharge of QA through its coils in series delays its release. Rectifier MRA confines the condenser discharge to the coils of IC. The respective operate and release lags of relay IC are made equal to the required minimum make- and-break periods. When A makes initially IR and IC follow, the former locking up both. When A first releases TR is short-circuited and releases but IC holds on account of its release lag. When A reoperates IR cannot reoperate until IC has fallen back and closed its operating circuit at ic1, the operating circuit for IC being closed simultaneously with that of IR. On the next release of A, relay IR cannot be released until IC has operated to complete the short circuit at ic2.
Patent GB-344768-A (GB)
Title: Improvements in means for circulating and filtering oil in internal combustion engines
IPC: B01D25/00
Filed: 1930-08-26
Abstract: 344,768. Lubricating. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. Aug. 26, 1930, No. 25465. Convention date, Aug. 31, 1929. [Class 12 (iii).] Force-feed lubricating; filtering lubricant.-In a lubricating system for an internal-combustion engine, oil drawn from a sump 3 is forced by a pump 2 through a pipe 4, passage 5, and pipe 7 into a chamber 9 wherein heavy impurities are deposited. A wire gauze or perforated disc filter 11 is mounted in the top of the chamber 9 and a perforated sleeve 15 having an outer covering consisting of a number of fabric rings 17 pressed together by a spring 19 is arranged between the chamber 9 and an enclosing casing 19a. The oil rising from the chamber 9 through the filter 11 passes downwards along the wall of the casing 19a and through the filter 17 into the interior of the sleeve 15, whence it passes to the lubricating conduit 25 through a passage 21 and a pipe 23 arranged eccentrically around the pipe 4. A spring-pressed valve 31 opens to by-pass the filter 17 if the pressure exceeds a predetermined amount. A spring-pressed relief valve 41 discharging to the sump 3 communicates with the outlet from the filters. The passages 5, 21 and the housing 29 of the valve 31 are cast integral with the cylinder block or are formed in a member 6 attached thereto.
Patent GB-462901-A (GB)
Title: Manufacture of 3-alkoxy-4-oxybenzaldehydes
IPC: C07C45/39
Filed: 1935-09-13
Abstract: 3-Alkoxy-4-oxybenzaldehydes are prepared by treating the corresponding phenyl-trichloromethyl carbinol in an aqueous alkaline medium with an inorganic metal compound as an oxidizing agent. Oxidizing agents mentioned are salts of chromic acid and peroxides, in particular, barium peroxide.  A mixture of these oxidizing agents may be used, and it is also preferred to include a small amount of copper, or a copper compound as a catalyst.  The reaction may be conducted in a copper vessel to obtain the catalytic effect of copper.  In examples: (1) guaiacyltrichloromethyl carbinol is oxidized by boiling with sodium bichromate in caustic soda solution in the presence of copper powder or a copper compound; (2) the process of example (1) is carried out at 150 DEG  C. in a copper vessel.  Specifications 219,676, [Class 2 (iii)], and 344,675 are referred to.  The Specification as open to inspection under Sect. 91 comprised quite generally the use of any oxidizing agent active in alkaline medium.  In addition to those mentioned above there were specified as oxidizing agents, nitrobenzene, salts of the sulphonic acids of nitrated aromatic hydrocarbons, and air or oxygen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-631735-A (GB)
Title: Improvements in or relating to automatic volume control circuits
IPC: H03G3/22
Filed: 1946-08-26
Abstract: 631,735. Automatic gain control. O'BRIEN, W. J. Aug. 26, 1946, No. 25489. Convention date, Aug. 27, 1945. [Classes 40 (v)and 40 (vi)] The invention relates to an amplified A.G.C. system in which a D.C. voltage obtained from the amplifier to be controlled and representing the amplitude of the signal, is applied to control the output of an auxiliary oscillator or of an amplifier to which an A.C. voltage is also fed, the output of which is rectified to produce the control voltage. In such a system the oscillator or amplifier is biassed to cut-off so that control is not effected until the amplitude of the signal exceeds a predetermined value. The Figure shows a tuned radio frequency amplifier including a first amplifying stage 58, an intermediate stage 59, a further amplifier 62 and an output stage 64. The intermediate stage is an amplifier or frequency changer biassed near to cut off by the large cathode resistance 59a which resistance thus has a rectified voltage across it representative of the amplitude of the signals. This voltage is applied together with a portion of the signal voltage which is induced in coil 75, to the grid of variable gain valve 70. The signal frequency output from the main anode of this valve is applied to its diode section producing a gain-controlling voltage across load resitor 84 which depends in magnitude on the product of the two input voltages and is therefore very sensitive to changes of signal levels. The operation of the gain control is delayed by a positive potential applied to the cathode of valve 70 to block the amplifying and rectifying sections when the input signal is small. In Fig. 2 the control voltage amplifier comprises a valve 21 having its anode and suppressor grid coupled to operate as a Hartley oscillator. The control voltage obtained from the cathode resistor 13 of frequency changer 2 is applied to the grid of valve 21 to control the amplitude of the oscillations and thus the bias voltage across . the suppressor grid-leak 33. This voltage is used as the A.V.C. voltage. A delay potential is applied to the cathode of valve 21 from the H.T. source to prevent oscillation until the signal reaches the desired level.
Patent GB-730893-A (GB)
Title: Improvements in power steering mechanisms for land vehicles
IPC: B62D5/24
Filed: 1952-10-10
Abstract: 730,893. Fluid-pressure servomotor control systems. BENDIX AVIATION CORPORATION. Oct. 10, 1952 [Oct. 20, 1951], No. 25501/52. Class 135. A power steering mechanism for a land vehicle comprises a hollow worm 16 mounted on a coaxial steering shaft 14 and rotatable in bearings 20 which prevent axial movement of the worm relative to its housing 10, the shaft engaging the interior of the worm by screw threads 18 whereby relative rotation between the worm and shaft results in axial movement of the shaft which actuates a valve 44 controlling a fluid-pressure motor 38 connected by a rack 32 to a gear sector member 24 in mesh with the worm. Member 24 is mounted on a shaft 26 operatively connected to the steerable wheels. The valve comprises a sleeve 54 fixed between bearings 56 on shaft 14 and slidable in a housing 50 to connect pressure fluid inlet 61 to either end of the motor cylinder via lines 40, 42, the end not so connected being exhausted through appropriate groove 46 and an exhaust port (not shown). Circulation of pressure fluid from the inlet to both ends of the cylinder and to exhaust occurs in the central position of the sleeve. The valve sleeve is centred in the housing by at least two precompressed springs 64 urging plungers 62 against the bearings 56 and shoulders 66, and relative rotation between the worm and shaft will not occur until the force of these springs is overcome. Movement of the motor piston 36 recentres the valve by rotating the worm and thus causing axial movement of the shaft 14. If the power fails, the steering can be effected manually by engagement of a shoulder 70 or a nut 72 with the ends of the worm. The pitch of the threads 18 is subsequently greater than that of the exterior threads on the worm.
Patent GB-1066377-A (GB)
Title: Electro-dialytic method for separating and enriching isotopes
Inventor: CORPORATION ATOMIC FUEL
IPC: B01D15/04
Filed: 1964-06-19
Abstract: Isotopes, e.g. of U, Li, H, Ca, B, N, Cl, C or K, which are ionized in solution, are separated or enriched by applying a potential gradient between a cathode and an anode electrically connected to opposite ends of cation or anion exchange resin material of large size in at least two dimensions, such as sulphonated styrene-divinyl benzene copolymer in the form of strip, rod, tube or plate, to pass D.C. therethrough, and feeding alternately at least two different solutions at least one of which contains isotope ions to be separated or enriched, e.g. the combination of uranyl and ammonium ions, uranyl and lithium ions, or chloride and sulphate ions, to the end of the resin material electrically connected to the electrode of the same polarity as these ions, to produce a plurality of alternate migration brands containing respectively ions of the different solutions, which bands migrate to the other end of the resin material where each band is divided into at least two portions each containing a different concentration of the isotope ions, the portions being collected separately. Two or more lengths of resin material connected in series with at least one intermediate compartment, may be placed between a pair of electrode compartments, e.g. containing a Ni cathode and Pt plated Ta anode respectively.  Each migration band in one cycle may be divided in the cathode or anode compartment and/or intermediate compartments into two portions to be separately collected or into three portions, the front portion of one band and rear portion of the preceding band being collected together as one fraction and the intermediate portion as another fraction.  At least one cation and one anion exchange resin may be alternately connected in series with one or more intermediate compartments interposed.  A.C. may be superposed on the D.C. passing through the resin or the polarity temporarily reversed.
Patent GB-988604-A (GB)
Title: Process for preparation of iodized lecithin
Inventor: HAYASHI SHIRO
IPC: C07F9/10
Filed: 1962-07-04
Abstract: Ionized lecithin is prepared by dissolving soya lecithin in ether, carbon tetrachloride or chloroform, adding iodine and a periodide of iron, tin or antimony and heating.  Excess free iodine may be removed with sodium thiosulphate. The product may contain over 20% of iodine and be used pharmaceutically.
Patent GB-1490680-A (GB)
Title: Preparation of d,l-panto-lactone
IPC: C07D307/33
Filed: 1976-06-21
Abstract: 1490680 D,L-Pantolactone SOC CHIMIQUE DES CHARBONNAGES 21 June 1976 [7 July 1975] 25630/76 Heading C2C D,L-Pantolactone is made by reacting, in a C 5-6  alcohol, hydroxypivaldehyde with HCN, prepared in situ by adding at 10-20 C., HCl and an alkali metal cyanide during 60-70 min., in such proportions that the pH of the reaction mixture is maintained at 8À2-9À2, the amounts added corresponding to an excess of approximately 10% HCl over the stiochiometric quantity, and thereafter hydrolysing the resulting cyanohydrin with an excess of concentrated hydrochloric acid at 100-105 C. for 20-30 min. to form the desired pantolactone.
Patent GB-309201-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B3/02
Filed: 1927-09-28
Abstract: 309,201. Dreyfus, H. Sept. 28, 1927. Yarns &c., treating with liquids.-Cellulose textile materials such as cotton, viscose silk and other regenerated cellulose materials, are subjected to the action of an acetylation or other esterification bath containing in addition to the fatty acid anhydride and a non-solvent of a cellulose acetate &c. a chloride, bromide or iodide of iron, manganese, cobalt, nickel, cobalt or copper, in association with hydrochloric, hydrobromic or hydriodic acid. The materials may be pretreated with organic acid particularly formic or acetic acid.
Patent GB-1035407-A (GB)
Title: Electrotypes
Inventor: BLACKMORE ROY CLIFFORD
IPC: B41C3/08
Filed: 1964-06-22
Abstract: 1,035,407. Electrotypes. NICKELOID Ltd. June 15, 1965 [June 22, 1964], No. 25762/64. Heading B6C. An electrotype shell 5 is backed by electrodepositing a metal or metal alloy 6 directly on the rear of the shell whilst the shell is still on the mould 3. A nickel copper shell 5 is electrodeposited on the mould 3 which has been sprayed with silver, and a first backing layer 6 of lead tin alloy containing a little copper is electro-deposited on the shell. The backed shell and mould are then rinsed and dried, and the layer 6 is shaved at the back to remove most of it adjacent to the non-printing areas 5a of the electro. A second layer 7 of backing alloy is now deposited on the layer 6. After further rinsing and drying and after removal of the mould 3, the backing 7 is shaved to a plane surface. More than two operations of backing and shaving may be employed. Finally, an aluminium sheet 8, Fig. 9 (not shown), is secured by adhesive 9 to the plane surface of backing 7.
Patent GB-1524691-A (GB)
Title: Night vision apparatus
IPC: G02B23/12
Filed: 1975-06-17
Abstract: 1524691 Goggles DEFENCE, SECRETARY OF STATE FOR 12 May 1976 [17 June 1975]  25831/75 Heading G2J A pair of goggles comprises two optical channels, one for each eye and each including an objective 2, 4, an image intensifier 1, 3 and an eye-piece 5, 6, the two systems providing intensified images of a scene, said images having the same magnification but providing different angles of view of the scene. In particular, the one eye sees only a central  portion of the scene observed by the other eye.