baber/WOPTO huggingface dataset:
Patent GB-866907-A (GB)
Title: Improvements in and relating to gyrators
Inventor: SHARPE GERALD
IPC: H03H11/42
Filed: 1957-07-03
Abstract: 866,907. Two-way transmission systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. June 3, 1958 [July 3, 1957], No. 21117/57. Class 40 (4). [Also in Group XL (c)] A gyrator, i.e. a four-terminal circuit defined by transconductances of opposite sign in the two directions of transmission and substantially zero input and output admittances, comprises two amplifier stages arranged respectively in opposite directions between the two pairs of terminals of the circuit and with one arranged to effect a reversal of sign with respect to the other. Each amplifier stage, termed in the Specification a " transactor," is such that an input voltage VI applied between input terminals T1, T2 causes an output current I2 to flow between output terminals T3, T4, there being no direct connection between any of the terminals T1, T2, T3 and T4. In Fig. 4 (not shown) is illustrated a modified " transactor " comprising two push-pull stages in cascade. Fig. 7 shows the complete gyrator comprising two " transactors " P7, P8 and P9, P10 connected between pairs of terminals S1, S2 and S3, S4, there being a reversal in sign in the coupling from terminals S1 S2 to terminals S3, S4 as compared with the coupling in the reverse direction. Grid-bias for the pentode valves is derived by returning the grid-leak resistors to intermediate points in the cathode-biasing networks of the circuit; in a modified circuit, Fig. 8 (not shown), the grid leaks are returned to adjustable tappings on resistors connected between HT+ and earth. In addition, the valves are variable-mu pentodes so that the gains in the forward and reverse directions may be adjusted by adjusting the tapping points. In a further modification, Fig. 9 (not shown), cathode degeneration is introduced to make the gains in the two directions substantially independent of the valve characteristics. It is stated that such a circuit may form part of a two-terminal circuit providing power gain in two directions or may be used as an impedance inverter, e.g. to produce a variable capacitor or inductor for use in a frequency-sweep oscillator, the variation being effected by varying the gains in the gyrator circuit. Transistor amplifiers may be used instead of valve amplifiers ; to achieve the necessary high input impedance the common-emitter configuration may be used.
Patent GB-1478812-A (GB)
Title: Metal shearing
IPC: B21D1/00
Filed: 1975-05-19
Abstract: 1478812 Shearing; punching UNION CARBIDE CORP 19 May 1975 [20 May 1974] 21131/75 Heading B3W To avoid plastic deformation and the formation of burr, metals or alloys having a bodycentered cubic crystallographic structure such as iron, molybdenum and tungsten, is cooled to a cryogenic temperature, i.e. below -70‹C., for a shearing or punching operation in which a flat sheet or bar is punched, blanked, slit or sheared between two blades, the force applied to a workpiece is a vector parallel to the area to be worked. The method is particularly applicable to magnetically soft metals. Uncoiled strip or bar stock, preferably precooled by a cold vapourized gas, is passed through a tank of, e.g. liquid nitrogen to cool it to 77‹ K. before punching/shearing by tools which may themselves be cooled to a cryogenic temperature.
Patent GB-320684-A (GB)
Title: Improvements in steam boilers
IPC: F22B17/10
Filed: 1928-07-21
Abstract: 320,684. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). July 21, 1928. Water-tube boilers comprise an upper steam and water drum 10 located above front headers 11, nipples 14 connecting the drum and headers, rear headers 12 supported by the rear wall 19 of the furnace and their forward ends connected by nipples 15, which extend across the furnace outlet and may be staggered to the drum 10, and firing means 22 in the front wall of the setting for projecting a, flame into the furnace, the front and rear headers, which are connected by tubes 16 being each arranged in two rows in staggered relation. The tubes 16 comprise an upper and a lower bank between which a superheater is arranged having inlet and outlet headers 23, 24 and a co-extensive intermediate header 26 connected thereto by U-tubes 27. An air heater 30 or other form of heat exchanger is located at the outlet flue 29, with baffles 31 - - 34 preferably arranged to direct gases across the header tubes to an outlet 35. The water tubes 16 may be removed through handhole openings in the front walls of the headers 11. A firing aisle is provided between two marine boilers, tubes from either boiler being removed through the common aisle.
Patent GB-587497-A (GB)
Title: Improvements in or relating to stands for bicycles and motor bicycles
IPC: B62H1/06
Filed: 1944-11-01
Abstract: 587,497. Supports. EHRENWERTH, H., EHRENWERTH, J., and WESSELY, O. Nov. 1, 1944, No. 21339. [Class 136 (i)] A stand for a cycle consists of a telescopic rod comprising an inner tube 4 carrying the feet 13 and having a lateral pin 20 operating in a longitudinal grooves 21 in an outer tube 5. This groove is so shaped at its lower end that in the inoperative position of the stand the feet lie in a fore and aft position and in a transverse direction when extended to the operative position. The shape of the lower end of the groove also serves to hold the lower end of the tube 4 against the action of a return spring 7 until the tube has been rotated through 90 degrees to its for-and-aft position. To prevent unauthorized use of the cycle, the stand may be locked in operative position by passing the hasp of a padlock 26 through a hole in the tube 4.
Patent GB-295830-A (GB)
Title: Manufacture of dextrose
IPC: C13K1/06
Filed: 1927-08-15
Abstract: 295,830. Marks, E. C. R., (Corn Products Refining Co.). Aug. 15, 1927. Glucose.-The acid hydrolysis of starch to dextrose is carried on in the absence of catalysts tending to polymerize the dextrose. Carbons which do not contain catalytic ingredients and are capable of absorbing these are employed. Fuller's earth or silica gel may also be employed and the conversion is effected in a vessel the inner walls of which are catalytically inert to the hydrolyzing acid, for example, in a glass-enam. elled converter.
Patent GB-1286057-A (GB)
Title: Improvements in hoods for convector space heaters
Inventor: JUNG OTTO
IPC: F24D19/06
Filed: 1971-04-19
Abstract: 1286057 Convector space heaters H H HEER [trading as H HEER & CO] 19 April 1971 [10 Feb 1970] 21520/71 Heading F4S A hood of generally rectangular box shape for a convector space heater comprises side walls 1, end walls 8, Fig. 6, and an upper wall formed at least in part by a grid 17, 18 (formed e.g. of longitudinal and cross bars, of perforated sheet metal or of wire netting), the hood being open on its underside. The side walls 1 are braced apart by U-shaped members comprising limbs 5, a cross-piece 6 and extension pieces 7 formed as a continuation of the limbs 5. On assembly, the pieces 7 and the lower ends of the limbs 5 are fitted into grooves 2, 3 respectively, formed by overturning the upper and lower edges of the side walls 1. Each end wall comprises a main plate portion 8 outwardly flanged and providing cut-away portions 13, 14 which receive the end portions of the side walls 1. The side walls include a longitudinal flange 4, Figs. 1 and 5, which supports the grill and also supports the end walls (via a flange 12 thereon). The assembly is completed by plates (16, Fig. 4) at the ends of the grill which rest on horizontal flanges 10 of the side walls. The structure is intended to be assembled without the use of screws or rivets. A slot 15, Figs. 5 and 6, is for access to the heater controls and/or for the accommodation of a pipe conveying fluid to or from the heater.
Patent GB-215706-A (GB)
Abstract: 215,706. Seguin, L., and Seguin, A. May 9, 1928, [Convention date]. Adding-apparatus with operating-means.-In a differentially-set, crank-operated machine the totalizer wheels 8 provided with numerals visible through a slot 51 are frictionally rotated by their shaft 4 and the extent of their rotation at each operation is controlled by members 12 frictionally mounted on a shaft 5. After the item has been set up by means of differentially-moved levers 20, the operating handle mounted on the end of a shaft 7 is given a forward and backward swing and the movement is communicated to shafts 4, 5 by gear wheels. In the forward movement, detents 25 frictionally mounted on shaft 7 are moved clockwise to engage and lock the wheels 8 and the members 12 are driven in the same direction until they engage their respective levers 20. In the return stroke, the detents 25 release the wheels 8 which thereupon rotate with their shaft 4 until they are again engaged by the members 12. The shaft 7 may be dispensed with, the detents 25 replaced by one-way pawls, and the crank handle and levers 20 arranged on shafts 5. The members 12 might also be in the form of rectilinearly movable bars. In order to facilitate the successive setting up of an item a bail pivoted on shaft 6 may be provided to carry a spring plunger on a slide adapted to be brought over and engaged with any one of the levers 20. Multiplying-apparatus.-The totalizer wheels 8, instead of exhibiting the results directly, might gear with indicating-wheels arranged, together with a revolutions counter, on a laterally slidable carriage to facilitate multiplication by repeated additions. Transfer-mechanism.-The controlling members 12, referred to above, are toothed at 17 to engage with transfer elements each consisting of a pinion 32 and a star wheel 33. At transfer, the tooth 44 on the numeral wheel rotates the star wheel through one step and so by means of pinion 32 drives the member 12 of the next higher denomination in the clockwise direction, which has the effect of enabling the higher numeral wheel to move through one more division before being stopped by the member 12. The transfer teeth 44 might be arranged to act directly upon the members 12 thus permitting the element 32, 33 to be dispensed with. Zeroizing-mechanism.-To zeroize the totalizerwheels 8, an external button on spindle 36 is turned to disengage the members 12 from the wheels by means of fingers 38. At the same time extensions 37 of the fingers take up position to serve as zero stops in conjunction with projections 35 on the wheels. The main handle is now moved to rotate the shaft 4 and so, by friction, to turn the wheels until stopped in their zero positions. Other zeroizing arrangements are suggested; thus, the fingers 38 may be omitted and the members 12 allowed to rotate clockwise to a " tens " position to enable the wheels 8 to make a complete rotation before the members again engage with them.
Patent GB-1109047-A (GB)
Title: Means for controlling the fuel delivery in fuel injection sparkignition internal combustion engines
IPC: F02B1/02
Filed: 1966-05-16
Abstract: 1,109,047. Regulation I. C. engines. KUGELFISCHER GEORG SCHAFER & CO. May 16, 1966 [Feb.17, 1966], No.21607/66. Heading F1B. A spark-ignition I. C. engine fuel injection pump control means, in which the fuel quantity is adjusted in dependence on the weight of combustion air derived from the engine speed and the throttle setting, has the throttle preset to give an excess air condition and the fuel quantity adjusted in dependence on the engine speed corresponding to a control curve applicable only to that particular throttle valve setting whilst maintaining an excess air condition so that the increased air induction consequent on a fall in engine speed due to a load increase is accompanied by an increased fuel delivery sufficient to give a greater rise in torque with falling speed than that rise in torque due to the same fall in speed when the engine is controlled to give maximum power for each operating condition. The control method reduces or eliminates the carbon monoxide content of the exhaust gases and is described by reference to graphs which illustrate its effect compared known control methods.
Patent GB-1133469-A (GB)
Title: Cooling system
IPC: E02F9/08
Filed: 1966-05-16
Abstract: 1,133,469. Cooling systems for vehicles. JOY MFG. CO. 16 May, 1966 [29 June, 1965], No. 21639/66. Heading F4U. In a vehicle propelled by a track mounted for movement about a supporting frame, hot coolant fluid is circulated through a tank carried by the frame to be cooled by heat conduction through the frame and track to the ground. As shown, the tank comprises end walls 82, 84, top and bottom walls 74, 76 and side walls (not shown), walls 74, 76 being in contact with guide surfaces 78, 80 for the track (not shown). Coolant, e.g. oil, enters the tank at 54, flows through passages 106, 108 to the opposite end of the tank then flows in the opposite direction towards an outlet 68 around vertical baffles 122, 124, 126, 128. The oil circulates in a closed cycle (Fig. 5, not shown), through the electric motors which drive the tracks and/or through other components of the vehicle which require cooling.
Patent GB-265087-A (GB)
Title: Improvements in pneumatic tyred wheels
IPC: B60B9/20
Filed: 1926-09-02
Abstract: 265,087. Barbe, L. E. Sept. 2, 1926. Spring wheels.-A pneumatic tyre 7, formed with a ridge 8 to fit a groove 9 in an outer rigid protective rim 10, has beaded edges gripped in grooves 4, 41 formed in inner half-rims 3, 5. The half-rim 5 is detachably bolted to the half-rim 3 and the rim parts 3, 5 are formed with spaced lugs 12, between which and similar lugs 15 on the rim 10, are fitted tangential compensating springs 14, as shown in Fig. 2.
Patent GB-949162-A (GB)
Title: Improvements relating to sealing devices
Inventor: ROGINSKI ANTONI
IPC: F16J13/08
Filed: 1959-06-24
Abstract: 949,162. Pressure resisting doors. ENGLISH ELECTRIC CO. Ltd. June 22, 1960 [June 24, 1959], No. 21672/59. Heading F2P. [Also in Division G6] The nuclear reactor standpipe 10 is fitted with the plug 11 which is retained in position by the balls 16. The latter engage the pipe 10 at the groove 30 into which they are urged by the cam ring 20. Rotation of 20 through a specified angle removes the cam surface from each ball which is then free to move down the annular face 13 and the plug may be removed. When the balls are forced into 30, the plug is moved downwards against the gaskets 17a, 17b to form a seal.
Patent GB-675918-A (GB)
Title: Improvements in or relating to the gasification of solid fuels
IPC: C10J3/46
Filed: 1950-09-04
Abstract: 675,918. Gasefying powdered fuels. DRAWE, R. Sept. 4, 1950 (Sept. 7, 1949], No. 21795/50. Class 55 (i). Coal dust or other finelydivided fuel is gasefied in suspension by means of the heat obtained by burning in the producer combustible gas in the free oxygen of the gasefying agent, e.g. air and steam, the gas supply being regulated so that all the free oxygen is consumed. The combustible gas is introduced jointly with the gasefying agent separately from the fuel at a number of points on the periphery of the generator. In a cylindrical producer 1 four gas burners 5 and four coal dust feeders 6 alternate with each other in each of four superposed planes and are arranged so that the streams of gas and coal dust form tangents to imaginary circles. The gas in which the fuel is entrained may comprise the gas generated or other combustible gas with or without steam or steam alone. The combustible gas and oxygen-containing gasefying agent may be preheated and introduced respectively through annular and central inlets 7, 8. Adjustment of gasefying agent composition comprising oxygen and steam only, permits variation of the H 2 : CO ratio between 2: 1 and 1: 2. Under a pressure of several atmospheres with an outlet temperature lowered to 700-750‹ C. methane may be formed. The gases produced may be freed from dust and burnt in the producer. The gas and coal dust nozzles may be located in separate planes.
Patent GB-776713-A (GB)
Title: Improvements in or relating to a water stop connector
IPC: E04B1/684
Filed: 1955-07-28
Abstract: 776,713. Expansion joints. SERVICED PRODUCTS CORPORATION. July 28, 1955 [Oct. 1, 1954], No. 21835/55. Class 20(4) A connector 15, Fig. 3, for joining the end portions of a pair of flexible waterstops 10, 11, bridging a joint 14, Fig. 2, between construction members 12, 13, comprises a flexible hollow shell having sockets 15a to receive the end portions and provided with thin side walls overlapping relatively large areas of the waterstops. The sockets 15a which are of similar cross-section to the waterstops 10, 11, are separated by a transverse web which is moulded integrally with the remainder of the rubber connector. In joining the waterstops 10, 11 by the connector 15, the contacting surfaces are coated with a natural or synthetic rubber cement or a rubberasphalt-oil composition.
Patent GB-471954-A (GB)
Title: Improvements in or relating to flexible tubes
IPC: F16L11/00
Filed: 1936-08-08
Abstract: 471,954. Flexible tubes. FREUDENBERG GES., C. Aug. 8, 1936, No. 21896. Convention date, Oct. 30, 1935. Addition to 460,606. [Class 99 (ii)] The mechanical strength of flexible tubes, impervious to organic solvents, e.g. motor fuels, which are produced from collagenous fibrous material as described in the parent Specification, is increased by one or more layers of a reinforcing material such as woven fabric, cellulose derivative in sheet form, rubber, &c. and/or helically-coiled wire. The collagenous material is preferably drawn in the form of a tube or wound in the form of a band or flat tube over a tube of the reinforcing material and/or wire helix, the resulting tube being covered, if desired, with further alternate layers of reinforcing and collagenous material. Adhesion of the several layers is effected by the application of glue, gelatine &c. or of heat and pressure. The tubes are preferably hardened and treated with water-insoluble softeners.
Patent GB-1434060-A (GB)
Title: Constant magnification optical system
IPC: G02B27/40
Filed: 1973-05-08
Abstract: 1434060 Optical readout PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 May 1973 [11 May 1972] 21903/73 Heading G5R [Also in Division G1] A reading apparatus for a disc-shaped record carrier on which video and/or audio information is recorded in a spiral or concentric tracks by optical means includes an optical system for maintaining the size of the image of the record information in the image plane independent of variation in the distance from the record information and the optical system forming the image. The information stored on record 1 is read by light from source 3 which is amplitude or phase modulated by the optical structure 3 on the record and detected by photosensor 9 and displayed at 10. In accordance with the invention see Division G1, objective lens 8 is replaced by the system shown in Fig. 2 wherein an objective lens O forms an image B 1  of the record information V and a variable curvature reflecting diaphragm M is positioned as shown to form an image of B 1  in the plane B 2 , the position of M being in the principal focal plane F of lens O or effectively there by means of lens L 1 . If the position of the object V relative to lens O changes intermediate image B 1  also changes in position and size and the final image B 2  is formed in a different image plane and is of different size. A pair of photo-electric sensors are positioned in the plane B 2  so that if the image B 2  varies in position and size an error signal is produced indicating the sign and magnitude of the focus error which error signal is applied to mirror M to alter its curvature, e.g. to M<SP>1</SP> and thereby refocus the final image back on to plane B 2 . An imaging system as above may also be used to maintain the focus of source 5 on the record track.
Patent GB-956864-A (GB)
Title: Improvements in or relating to the damping of vibrations in gas bearings
IPC: F16C32/06
Filed: 1960-06-22
Abstract: 956,864. Fluid bearings. ESCHER WYSS A.G. June 22, 1960 [June 26, 1959], No. 21934/60. Heading F2A. In a fluid bearing vibrations are damped by at least one resonator which is provided in a bearing member 2. The resonator comprises a chamber and a channel the latter being connected to a gap S between a shaft 1 and the bearing member 2. The channel is designed to contain a gas column capable of oscillating in the longitudinal direction of the channel. In an embodiment, chambers 10-13, Figs. 1 and 2, are joined by channels 14-17 to distribution spaces 9 connecting to the gap S. Pressurized gas is supplied to the spaces 9 from an inlet 4, via a bore 5, in a member 3 supporting the member 2, and through an annular passage 6 and radial passages 7 in the member 2. Seals 18 are provided between the members 2 and 3. The Specification also describes the application of resonators to thrust bearings. The chambers and channels are of different sizes, so that according to the frequency occurring, excitation of one or the other of the various resonators is effective.
Patent GB-755477-A (GB)
Title: Improvements in or relating to method of drying improved cationic urea-formaldehyde resins
IPC: A63H5/00
Filed: 1954-07-28
Abstract: An aqueous sludge of a cationic urea-formaldehyde-polyfunctional organic nitrogen base resin is dried by first adding to the sludge a liquid, water-miscible ether, ketone or monohydric alcohol to form a dispersion of the resin and then separating the resin by drying in any known way, e.g. vacuum, vacuum drum or spray drying.  The dispersion is preferably concentrated before drying.  Examples of the liquids are methanol, ethanol, propanol, isopropanol, tert. butyl alcohol, acetone, dioxane and methoxymethane.  The resins include those prepared from urea and/or thiourea with any methylene yielding compound.  The polyfunctional modifiers are water-soluble alkylene- and polyalkylene - polyamines, guanidines, biguanides, guanylureas and their salts, condensation products of alkylenepolyamines with halohydrins, alkylolamines and their aldehyde condensation products. The sludges are obtained when aqueous solutions of the cationic resins are treated to precipitate improved resins for producing wet strength paper. Such treatment may be the addition of an anion, e.g. sulphate ion, a cation, e.g. ammonium or alkali metal ion, or a basic material, or the lowering of the temperature to about 10 DEG  C.  The amount of organic liquid added to the sludge is generally at least four times the weight of the sludge.  The dried resins are water-soluble and solution may be facilitated by a small amount of acid, e.g. formic.  Specification 663,736 is referred to.
Patent GB-986039-A (GB)
Title: Conditioning cyanide compounds
Inventor: LANCY LESLIE EMERY
IPC: C02F1/76
Filed: 1963-06-04
Abstract: Cyanide wastes which contain iron cyanides are chlorinated under alkaline conditions to convert to an intermediate iron cyanide product (ferricyanides) and producing a non-toxic iron compound by completing chlorination in a concentration in excess of 0.5 gms/litre of free chlorine and a temperature in excess of 160 DEG  F. U.S.A. Specification 2,981,682 is referred to.
Patent GB-1117316-A (GB)
Title: Improvements in or relating to the stowage of cargo in ships
Inventor: CORLETT EWAN CHRISTIAN BREW
IPC: B63B25/22
Filed: 1965-05-25
Abstract: 1,117,316. Carrying cargo without breaking bulk. BRITISH INDIA STEAM NAVIGATION CO. Ltd. 25 May, 1965 [25 May, 1964], No. 22234/65. Divided out of 1,116,592. Heading B7A. A ship 11 with horizontal cells or bays 12 to receive cargo containers or load-bearing pallets 15 has a channel 14 along the fore-and-aft centre line in which a lift 13 is arranged to travel both horizontally and vertically for loading containers or pallets 15 into cells or bays disposed at several levels outboard of the lift channel 14 on either side thereof. The lift 13 and the cells or bays 11 are equipped with rollers 16 or like anti-friction means on which the loads run.