baber/WOPTO huggingface dataset:
Patent GB-204545-A (GB)
Title: Improvements in or relating to steam turbines and the like
IPC: F22G1/04
Filed: 1922-10-14
Abstract: 204,545. Yarrow, H. E. Oct. 14, 1922. U-tube superheaters.-An inter-stage reheating apparatus for steam turbines comprises a longitudinally divided drum A with re-heater tubes C connecting the compartments B, B<1> placed in one of a number of parallel paths G, G<1> for the furnace gases of the steam generator, the flow of which gases past the re-heater is regulated by a damper H. The separate reheaters may be traversed by the hot gases in series or parallel.
Patent GB-1000238-A (GB)
Title: Heat exchanger
IPC: F28F9/013
Filed: 1964-07-07
Abstract: 1,000,238. Tubular heat exchangers; refrigerating. TRANE CO. July 7, 1964 [Aug. 28, 1963], No. 27966/64. Headings F4H and F4S. A shell and tube heat-exchanger 10, Fig. 1 e.g. the generator of an absorption refrigeration system, comprises floating tube spacers 44 di s posed between inlet and outlet headers 25 and 2 arranged to maintain the tubes 24 in space #  apart relationship. The tubes are rigidly fixed between tube end plates 16 and 20 and held in p position by fixed tube supports 40 disposed between the floating tube spacers. Fig. 3 shows the floating tube spacer 44 resting on a horizontal plate 32 and being restricted in longitudinal movement by guides 50. The floating tube spacers and the fixed tube supports have holes 46 and 42 to contain the tubes. The heating fluid has an inlet 26 and outlet 30, and the heated fluid an inlet 34 with a liquid outlet 36 and vapour outlet 38. When the tubes 24 are heated they expand and the expansion is taken up by the lateral movement of the floating tube spacers forming a sine wave as shown. Fig. 5 (not shown) indicates a modified form of the heat exchanger wherein the spacing between adjacent fixed tube supports is progressively smaller towards the outlet end for the heating fluid.
Patent GB-942728-A (GB)
Title: Electric cables
Inventor: DUDDRIDGE GORDON KENNETH
IPC: B23K9/32
Filed: 1962-07-20
Abstract: 942,728. Making electric conductors; welding by fusion. STANDARD TELEPHONES & CABLES Ltd. July 20, 1962, No. 28060/62. Headings B3A and B3R. [Also in Division H1] In a method of manufacturing an electric cable in which a folded metal strip is welded by an inert gas shielded electric arc to form a metal tube about a cable core, an inert gas is fed into the folded strip prior to welding. In one embodiment (Fig. 1) the cable core 1 has folded around it a loose fitting tube 4, both moving in the direction of the arrow X, with an argon gas feed pipe 9 placed before an argon arc welding device 3 and a die 5 which reduces the welding tube on to the cable core. In a further embodiment (Fig. 2, not shown) the inert gas is fed through channels in a guide fin disposed between the edges of the metal strip prior to welding.
Patent GB-298087-A (GB)
Title: Improvements in the manufacture of acidyl-cellulose
IPC: C08B1/02
Filed: 1928-10-01
Abstract: 298,087. Heberlein & Co., Akt.-Ges. Sept. 30, 1927, [Convention date]. Cellulose carboxylates and processes for making filaments and films therefrom ; cellulose nitrates; preparatory treatment of cellulose for making.- Cellulose to be used in the preparation of cellulose carboxylates is pre-treated with acid or neutral swelling agents and after swelling has occurred, the excess of swelling agents is removed by pressing, centrifuging or the like. In cases in which the presence of swelling agents has an unfavourable effect upon the acidylating medium the fibrous material is further freed from the swelling agents by means which does not cause coagulation of the swollen material, e.g. it may be washed with an indifferent organic advent such as alcohol, glacial acetic acid, or acetone, in order to remove the swelling agent completely or so that only a harmless residue remains. The washing agent may be removed by pressing, centrifuging or the like but not by a drying process. As swelling agents concentrated inorganic acids such as sulphuric, phosphoric, or hydrochloric acids may be used or mixtures thereof or salts such as zinc chloride or calcium sulphocyanide. The swollen material is acidylated in known manner by means of a concentrated organic acid, an acid anhydride, or an acid chloride, and if necessary, a catalyst. The esters formed mav be converted in known manner by partial saponification into more easily soluble products, which may be dissolved in solvents such as acetone, chloroform, or pyridine to give solutions from which artificial threads, films, or varnishes may be made or alternatively the solution immediately after acidylation may be directly coagulated. In examples, bleached cotton waste is treated with cold sulphuric acid of 62 per cent strength, pressed and then acetylated in a mixture of acetic anhydride and glacial acetic acid, the product being isolated by precipitation in water; clean loose cotton is swollen with nitric acid of 70 per cent strength, pressed, washed with glacial acetic acid to remove the swelling agent, pressed again, and acetylated in a mixture of acetic anhydride and glacial acetic acid together with a small quantity of concentrated sulphuric acid, the product being isolated in the usual manner The Specification as open to inspection under Sect. 91 (3) (a) referred to the use of water for washing the swollen material. This subjectmatter does not appear in the Specification as accepted.
Patent GB-404103-A (GB)
Title: Improvements in and relating to rising hinges
IPC: E05F1/06
Filed: 1932-10-11
Abstract: 404,103. Rising-hinges. PARKES, S. R., Pretoria Works, New Road, Willenhall, Staffordshire. Oct. 11, 1932, No. 28242. [Class 65 (ii).] A rising-hinge is formed of sheet steel members with their edges curled over to form sockets for the hinge pin. One member 1 (the fixed member in the form shown) has two socket portions 5, 8, the latter having a rising cam surface 7 to engage a corresponding surface on the single socket portion 14 of the other member 2. The hinge pin 9 is secured to the member 1. In a modification, the socket portion 5 and the upper edge of the socket portion 14 are also formed with rising cam surfaces, so that the hinge can be turned over for use with a door of the opposite hand. Reference has been directed by the Comptroller to Specifications 10120/89, 8542/90, 2043/03, and 5023/03, [all in Class 65, Hinges &c.].
Patent GB-194243-A (GB)
Title: Improvements in hand tools for embroidery
IPC: D05C1/00
Filed: 1922-10-18
Abstract: 194,243. Clarke, E., Clarke, A., and Clarke, A. Oct. 18, 1922. Hand sewing-tools. - The stop 6 of a hollow tufting- needle is positioned by means of a screw 5 and a nut 4 in the handle. The upper end 10 of the stop may be engaged between two collars 8, 9 on the screw or be kept in contact with a single outer collar by means of a spring.
Patent GB-974504-A (GB)
Title: Improvements relating to electronic circuit arrangements employing transistors
Inventor: LAMBERT PETER GABRIEL
IPC: G05F1/571
Filed: 1960-08-16
Abstract: 974,504. Semi-conductor protection circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 26, 1961 [Aug. 16, 1960], No. 28311/60. Heading H3T. [Also in Division G3]  In a circuit in which a transistor is to be protected against excess voltage appearing between two electrodes, a silicon Zener diode is connected between the electrodes such that Zener current will flow if the safe voltage between the electrodes of the transistor is exceeded. The diode may be connected between the collector and emitter, Fig. 1 (not shown), or the base and emitter, Fig. 3, and in the case of a silicon transistor a rectifier D may be included in series with the Zener diode to reduce leakage. The arrangement may be applied to a series regulator, Fig. 4, in which regulation is effected by means of a pair of resistors R1 and R2, the tapping point of which is connected to an amplifier AMP where the voltage is compared with a reference source REF, and a difference voltage applied to the base of transistor T. The protection Zener diode Z is connected between collector and emitter of the transistor.
Patent GB-141634-A (GB)
Title: Improvements in electrical indicating devices
IPC: G09F9/00
Filed: 1918-07-24
Abstract: 141,634. O'Neil, R. S. July 24, 1918. Lamp signals; transparency and stencil luminous signals.-An indicator particularly suitable for use in conjunction with the device described in Specification 141,388, [Class 40 (i), Electric signalling systems &c.], for indicating rudder positions comprises a single lamp 1 in a casing with a display aperture 7, and colour screens 2, 3 which can be selectively interposed between the lamp and aperture by linkwork under control of corresponding electro-magnets 4, 5. A number of translucent disks 6 bearing numbers or other indications are arranged round the aperture and selectively operated by electro-magnete to interpose any required disk between the coloured light and aperture, the general arrangement and operation being similar to that described in Specification 141,633.
Patent GB-521841-A (GB)
Title: Improvements in or connected with advertising or display devices
IPC: A47F5/11
Filed: 1938-09-29
Abstract: 521,841. Show-cards. HILDESLEY, Ltd., H., and BEAMISH, H. R. Sept. 29, 1938, No. 28322. [Class 3 (ii)] A collapsable show - card comprises a background A creased at 1a and 1b to form a shelf C and a riser D. To the rear of the background A is secured a locking strut E having hinged side wings 2b each formed with an enlarged supporting foot 2c. To the rear of the riser D is fixed a locking member F creased at 4a, 4b and 4c for attachment to the strut E and to the riser and to form a link G parallel to the shelf C. The outer end of the member F has three prongs, the central one entering a slot 3 in the strut E and the side ones being formed with hook ends which take over the outer edges of the wings 2b when the device is erected. By bending inward the wings free of the hook ends the whole card may be collapsed. Several modifications of the arrangement are shown.
Patent GB-836932-A (GB)
Title: Arrangement for controlling an auxiliary hydraulic motor serving to augment the steering power in motor vehicles
IPC: B62D5/08
Filed: 1957-09-09
Abstract: 836,932. Vehicle power steering. MUELLER, F., and MUELLER, M., [trading as FULMINAWERK KOMMANDIT - GESELLSCHAFT, F. MUELLER]. Sept. 9, 1957 [Sept. 10, 1956; Feb. 20, 1957], No. 28334/57. Class 79(5) A servo control valve in the power steering gear of a motor vehicle comprises a pair of annular pistons 14, Fig. 1, which are axially slidable on a control member 12 and yieldingly held against stop flanges 15 by springs 16, movement of the pistons 14 increasing or decreasing gaps 19, 20 between control surfaces in supply and discharge ducts 21, 23. The control member 12 comprises a tube which is freely rotatable but relatively axially fixed between thrust bearings 10 on a steering tube 4 rotatable by the steering handwheel. A steep thread connection 8, 9 is provided between the tube 4 and the steering spindle 5 of a ball and nut gear so that resistance to the steering results in axial movement of the tube 4 with conseauent axial movement of the control member 12. The valve cylinder casing 3 has a flanged central portion 18 in which the control tube 12 is slidable on its central flange 15, and has bushings 13 at each end guiding shoulder rings 11 engaged against the ends of the tube 12 and forming race parts of the bearings 10. The annular pistons 14 are slidable in the casing 3 and are yieldingly held against the. flange 15 by the springs 16 which may be pre-stressed and are held by rings 17 engaged by the shoulder rings 11 and by a shoulder on the bushings 13. Flow between the gaps 19, 20 is provided by bores 28 in the pistons 14 and variations in the gaps 19, 20 cause pressure changes in chambers 25 connected to opposite ends of the servo motor through ports 27. The gaps 19 are smaller than the gaps 20 so that in operation a small movement of the steering tube 4 first closes one of the gaps 19 and opens the gap 20 at the same end of the valve to raise the pressure at one end of the servomotor. Further movement of the tube 4 results in the gap 20 at the other end of the valve being closed so that the full pump pressure is available at one end of the servomotor. In this position one of the pistons 14 is directly engaged with one of the bushes 13 so that in event of failure of the hydraulic system a mechanical interconnection is obtained. In a modification the control member comprises a rod 32, Fig. 2, which is movable axially by a steering tube 41 through a ball race 38 and pin-and-slot coupling 37. In this example a yielding connection of prestressed springs 35 is provided and pistons 34 are arranged at opposite ends of a sleeve 33 and engage stop flanges 45 at each end under the pressure of springs 46.
Patent GB-701587-A (GB)
Title: Improvements in potato diggers and like harvesting machines
IPC: A01D17/10
Filed: 1950-11-21
Abstract: 701,587. Potato harvesters. FERGUSON, R. B., and FERGUSON, D. B. Feb. 21, 1952 [Nov. 21, 1950], No. 28398/50. Class 6 (3) A potato harvester comprises a share S which delivers potatoes on to the upper face of the lower run of an endless conveyer M which passes at one end upwards and around a rotary drum H<SP>20</SP> provided with a conveyer L on to which the crop is deposited and which delivers the crop to the front end of a longitudinally disposed conveyer P. The conveyers which are preferably of the perforated, reticulated or grid type are driven by gearing from the tractor power shaft and slipping clutches may be incorporated. The machine frame is pivotally mounted on two beams F which are connected to the tractor. The front of the frame is adjustably attached to the beams F to vary the working depth of the share S. The beams F are attached to a transverse beam C on which are mounted castor wheels W. Plates U, X, Y are provided to retain the potatoes on the conveyers. As described in the Provisional Specification a rotating brush is used in place of the drum H<SP>20</SP> and conveyer L.
Patent GB-1187123-A (GB)
Title: Stable Aqueous Solutions of Polyelectrolytes.
Inventor: MICHAELS ALAN SHERMAN
IPC: B01J43/00
Filed: 1967-06-08
Abstract: 1,187,123. Aqueous solutions of mixed anionic and cationic polymers. AMICON CORP. 8 June, 1967, No. 28417/68. Divided out of 1,187,122. Heading C3P. A stable aq. solution contains at least 0À2% by wt. of a synthetic organic polymer having dissociable anionic groups attached to a polymeric chain which without these groups is a water-insoluble film forming resin, at least 0À5% by wt. of a synthetic organic polymer having dissociable cationic groups attached to a polymeric chain which without these groups is a water-insoluble film forming resin, each of these polymers having sufficient dissociable groups to render it water soluble in the absence of the other, the weight ratio of the polymers being from 5: 1 to 1: 5 and at least 10% by wt. of an electrolyte having a pK less than 2À0 and a volatility at least as great as that of these polymers. In the examples the polymers were poly-(sodium styrene sulphonate) and poly- (vinyl benzyl trimethyl ammonium chloride), the electrolyte was hydrobromic or hydrochloric acid and the aq. solution also contained 1,4-dioxane.
Patent GB-283681-A (GB)
Title: Improvements in and relating to thermally-actuated motive devices
IPC: F23C99/00
Filed: 1926-11-11
Abstract: 283,681. Snell, C. Scott-, and Snell, E. Scott-. Nov. 11, 1926. Raising liquids by heating in pipes.- Parafiin &c. in the tube system, Fig. 5, is heated at the lower end of the tube m, the vapour collecting at the top of the bend 17 and forcing liquid up the pipes to higher level until the vapour level is such that it creeps down until it reaches the level of the junction of the pipe o with the pipe m when it rushes up the pipe o and coming in contact with the cool paraffin in the pipe p it condenses causing a partial vacuum whereby liquid is drawn up from the supply at lower end of p. An oil lamp, Fig. 3, or heater acting on this cycle is fed with oil from a supply duct 10, the heat of the mantle 13 passing from a copper transmitter 15 to vaporize the oil in tubes m, o, the oil being thus driven up through a valve q and down a pipe s to a reservoir r, up through a jet 3 and needle valve 5 to a mixing chamber 12 to supply the mantle. The oil tubes o, m, p are so arranged and interconnected that when the vaporized oil rises in the tube o and forces oil up and meets the cool oil in the large tube p, the oil vapour suddenly contracts and causes a vacuum, so that fresh oil for the system is drawn in through the duct 8 to the chamber r, passing through the filter w, through the non-return valve x, to a conduit u whence it passes through an inlet y to refill the tubes m, o and p. The vapour pressure is equalized by a pressure buffer air vessel closed at its upper end and contained in the chamber r connected freely to the jet 3 the needle valve of which is operated by a cam on a milled head spindle.
Patent GB-921257-A (GB)
Title: Detuning interfering magnetron modes
IPC: H01J23/22
Filed: 1961-08-04
Abstract: 921,257. Magnetrons. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 4, 1961 [Aug. 22, 1960], No. 28456/61. Class 39 (1). In a double-ring strapped multi-cavity magnetron, strap breaks are provided over vanes 68, 70 disposed substantially 90 degrees around the anode from the output gap 80 in order to prevent the build-up of the predominant interfering mode during the starting of the magnetron. Similar breaks may be provided in straps provided at both ends of the anode block. The breaks may extend, instead of over the vanes only as shown, over a whole resonant cavity or over more than one cavity. Breaks may be additionally provided at points diametrically opposite from those shown at both ends of the block.
Patent GB-760939-A (GB)
Title: Improvements in or relating to personal sanitary conveniences
IPC: A61G9/00
Filed: 1953-10-15
Abstract: 760,939. Personal sanitary conveniences. GAILLARD, S. March 23, 1954 [Oct. 15, 1953], No. 28537/53. Class 26. A personal urinal comprises a urine receiver 1 of water-impermeable flexible plastic such as polyvinyl chloride and preferably 0À0025- 0À005 in. thick with its mouth detachably secured to a connecting member 4 in the form of a ring having means such as straps for ensuring close contact between the receiver and the wearer's body. A flat tubular sheath 8 is formed as an extension of the receiver and folded over at 9 to extend within it; alternatively a separate sheath may be provided. The spout 3 in the lower end of the receiver may be closed by any suitable means. Specification 669,063 is referred to.
Patent GB-739593-A (GB)
Title: Improvements in apparatus for training air pilots in shooting
IPC: F41G9/00
Filed: 1952-11-12
Abstract: 739,593. Training aircraft pilots. SOC. D'APPLICATIONS DES MACHINES MOTRICES S.A.M.M. Nov. 12, 1952 [Dec. 18, 1951], No. 28555/52. Class 4. [Also in Group XXI] Gunnery training apparatus for pilots flying aircraft with fixed guns includes means (see Group XXI) by which images of a target model and of fixed elements, such as the ground, are projected on to a screen, such images being made to move over the screen in accordance with the motion of the imaginary aircraft flown by the pupil pilot. The control which produces the effect of climbing operates a motor on the shaft of which is a tachometer dynamo, Fig. 20, associated as shown with an amplifier 130 and continuous current motor 131. The motor 131 controls a winch 132 acting through a device 134, Fig. 21, on the shoulder straps of the pilot. If vertical acceleration is excessive a spring f in the device 134 is compressed sufficiently to close a switch 135 in circuit with a bell or other warning device 136.
Patent GB-323539-A (GB)
Title: Improvements in or relating to diaphragms for loud-speakers and like instruments
IPC: H04R7/10
Filed: 1928-10-04
Abstract: 323,539. Searle, G. R. Oct. 4, 1928. Diaphragms. - A diaphragm is built up of two sheets of paper &c. spaced apart by a plurality of paper members to which the sheets are attached. The two sheets of paper 5, 6 are separated by radial paper strips 7, bent as in Fig. 4. A stiff paper tube 10, Fig. 3, passes through the centre of the diaphragm and its slit ends 11 are bent and attached to the two outer sheets 5, 6, to which other paper sheets 13 may be attached, their size decreasing outwards. The diaphragm is preferably clamped between rubber rings 14. The diaphragm may be formed of newspaper.
Patent GB-906682-A (GB)
Title: Combustion control apparatus
IPC: F23N5/22
Filed: 1960-08-17
Abstract: 906,682. Controlling burners. ELECTRONICS CORPORATION OF AMERICA. Aug. 17, 1960 [Aug. 31, 1959], No. 28565/60. Class 75 (1). [Also in Group XL (b)] A device for the automatic control of a burner comprising a pilot valve, ignition means, and a main fuel valve, comprises a detector primarily sensitive to U.V. radiation, flame relay means actuated thereby, and a timer which has a plurality of switches to turn on the ignition means and a pilot valve during a first time interval, to turn off the ignition means during a second time interval, and to then turn on the main fuel valve only if the detector has sensed a flame during the second interval. In response to the closing of a thermostatic switch 21 a relay 23 operates to switch (via its contact 87) power on to a timer motor 99 and a burner motor 11, which supplies air to the burner initially for purging and then for combustion. After ten seconds motion of the timer its contact 101 is closed to hold the supply to the burner motor and its contact 73 is opened so that relay 23 is held operated only by connection via its contact 81 and the resistive coil 41 of a thermal lockout switch 39. After a further twenty seconds, timer contact 103 is closed to energize an ignition transformer 17 and a pilot fuel valve 15 and consequent upon the sensing of U.V. radiation by the detector 33 from either the flame or ignition the flame relay 27 is caused to operate. Five seconds later timer contacts 107 and 115 are opened so that the ignition transformer is de-energized but the pilot fuel continues to be energized via contact 125 of flame relay 27. After a further five seconds timer contact 127 is closed to connect power on to a main fuel valve 13. In the event of flame relay 27 being deenergized due to failure of the pilot flame or the main flame both fuel valves are disconnected by the opening of flame relay contact 125 and the simultaneous switching of the contact 77 removes the shunt across the resistive coil 41 of the thermal lockout switch 39 which then operates to de-energize relay 23 and operate an alarm 19; manual intervention is then necessary to restore the switch 39. If, however, the cycle proceeds normally, some time after the main fuel valve 13 has been switched on timer contact 95 is operated to disconnect the timer motor. Shutdown, initiated by the opening of the thermostat switch 21, results in the main fuel valve 13 being disconnected and relay 23 being de-energized, this latter causing restoration of its contact 87 to connect power to the timer motor 99, which then rotates to restore the initial circuit conditions. The circuit is stated to fail safe in the event of power failure. .