baber/WOPTO huggingface dataset:
Patent GB-1336183-A (GB)
Title: Transit-time tube arrangements
IPC: H01J23/00
Filed: 1971-04-29
Abstract: 1336183 Transit-time tubes SIEMENS AG 29 April 1971 [30 April 19701 12123/71 Heading H1D The magnetic focusing system 3 of a transittime tube 1 is cooled by air which flows through the system transversely to the tube axis from a lateral, axially extending duct 9. As described, the arrangement is applied to a klystron, the successive focusing coils mounted along the support tube 2 being spaced apart to provide, with corresponding apertures in the tube 2, passages for the leads to the successive klystron cavities, for the flow of cooling air, and for the mounting therein of cooling fins 4 the outer rims of which are cut and bent to form axially directed tongues disposed in the annular space between the external surface of the coils and the magnetic screen casing 7. The air inlet and outlet ducts 9 and 10 extend along the length of the tube 1, and communicate with the annular space through a sequence of apertures formed in the screen 7 and having a variation of size and distribution which provides the greatest airflow at the collector end of the tube. The collector of the tube is separately provided with cooling fins upon which air from a branch of the air supply pipe 11 is directed. Reference is also made to the application of the arrangement to travelling-wave tubes.
Patent GB-233729-A (GB)
Title: Improvements in means for regulating the supply of fuel to furnaces
IPC: F23N1/02
Filed: 1925-05-09
Abstract: 233,729. Roucka, E. May 10, 1924, [Convention date]. Fuel supply, regulating.-In furnace or gas producer particularly for use with steam boilers in which the fuel supply is regulated, for example by varying the speed of a chain grate, in accordance with the flow of steam or air or the like, the controlled rate of fuel supply is corrected by some other value in connection with the running of the boiler such as the flow of air or steam, the cornposition of the flue gases or a pressure difference which changes with the fluctuating combustion. The invention is also adapted for use with furnaces burning liquid or gaseous fuel. In steamboiler furnaces it is found preferable to regulate the fuel supply in accordance with the flow of air for combustion and to correct the adjusted rate in accordance with the flow of steam from the boiler. As shown in the Figure, the shaft 2 for driving the chain grate is driven from a motor 8 through friction discs 10, 12, bevel gear 6 and worm gear 4, and the speed of the grate is varied by moving the disc 12 by a piston-rod 20 of a servo motor 22 to which fluid under pressure is supplied under control of a valve 24. The piston-rod 20 carries an arm 26 attached to a chain 33 carrying a weight 31 and passing over a pulley on a shaft 28 which also carries a cam 32 adapted to impart a reciprocating movement to the valve 24. The flow of air to the furnace or gases through the boiler flues and the flow of steam from the boiler effects through apparatus such as described in Specification 227,882 or other suitable apparatus 34, 36 respectively the movement of rods 38, 41, such movements being indicated on scales 42, 44. Upon an increase in the flow of air and a corresponding increase in the flow of steam, the rods 38, 41 move in opposite directions and the lever 52, pivoted to the rods at 48, 50 merely turns about a fulcrum 54 by which it is pivoted to one end of a lever 56. Simultaneously, lever 72 pivoted at 74 to the rod 38 is turned about the roller 76 held against the cam 32 by a spring 78 and actuates through a link 68 and lever 62, pivoted at 60 to the other end of the lever 56, the rod 63 attached to the valve 24. Fluid under pressure is thus admitted to the servo motor 22 to raise the rod 20 and varv the speed of the grate. The upward movement of the rod 20 rotates the cam 32 through the chain 33 and swings the lever 72 about the pivot 74 to return the valve 24 to zero position and stop the servo motor. In the event of a drop in the flow of steam, due for example to the use of inferior fuel. the rod 41 moves upwardly and actuates the lever 56 which turns the lever 62 about the pivot 66 to operate the rod 63 and valve 24 to admit fluid pressure to the servo motor and increase the fuel supply. Where the steam is withdrawn from the boiler through a number of pipes and where the air supply to each boiler of a range is metered separately, a number of devices 34, 36 are used and the mean valves of the flow of steam and air supply are employed to actuate the rods 38, 41.
Patent GB-366369-A (GB)
Title: An improved process for producing hydrogen from hydrocarbon gases
IPC: C01B3/38
Filed: 1931-04-24
Abstract: In the catalytic production of hydrogen from hydrocarbon gases and steam, the catalyst is periodically reactivated by the passage of a gas comprising oxygen free from hydrocarbons.  The oxygen may be diluted with inert gases such as nitrogen and carbon dioxide, and with water vapour.  A mixture of air and steam containing 5-30 per cent of air is suitable.  The invention is particularly applicable to the treatment of hydrocarbons containing unsaturated constituents, such as natural or refinery gas which has been freed from sulphur compounds.  The temperature of reaction is 1200-2000 DEG  F., and a nickel catalyst may be used. Preferably a number of reaction chambers are connected in parallel and separately reactivated in turn. Specification 364,419 is referred to.
Patent GB-1346223-A (GB)
Title: Film-forming binder
IPC: C09D127/08
Filed: 1971-04-29
Abstract: 1346223 Polymeric binders EASTMAN KODAK CO 29 April 1971 [1 May 1970] 12180/71 Heading G2C [Also in Division C3] A binder for magnetic recording layers on synthetic resin films comprises (a) cellulose nitrate and (b) a copolymer of 50-80% vinylidene chloride, 2-30% acrylonitrile and 0-60% of a lower alkyl or hydroxyalkyl acrylate or lower alkacrylate (lower alkyl is C 1  - C 6 ) which is preferably applied as a solution in a N, N - di - lower alkyl amide of a lower aliphatic acid. Suitable solvents are N, N- dimethyl-formamide and/  or -acetamide optionally with 2 - ethoxyethanol, methyl ethyl ketone, n - butanol, amyl acetate and 2 - butoxyethanol. Also present may be a maleic polyester plasticizer and sorbitan tristearate and gamma ferric oxide is used as the ferromagnetic material. The composition may be used to form the recording medium on photographic film.
Patent GB-438326-A (GB)
Title: Improvements in loop antennae
IPC: G01S3/08
Filed: 1935-04-23
Abstract: 438,326. Aerials. NAAMLOOZE VENNOOTSCHAP PHILIPS' GOLEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. April 23, 1935, No. 12220. Convention date, May 9, 1934. Drawings to Specification. [Class 40 (v)] A loop aerial, more particularly for a radio beacon transmitter, has a length which is great relative to its height the latter being small relative to the operating wavelength, and the conductor is interrupted at one or more symmetrically situated points by impedances such that radiation by the horizontal parts is substantially eliminated. In one embodiment the upper horizontal conductor is interrupted at the centre by a capacity the impedance Z of which is given by the formula Z = 2 j Ro tan. #l/# where Ro is the wave resistance of the aerial l is half the horizontal length and # the wavelength.
Patent GB-1167482-A (GB)
Title: Rockable Toy Figure
Inventor: EISEN WERNER
IPC: A63H13/18
Filed: 1968-03-13
Abstract: 1,167,482. Rockable toy figure. WERNER EISEN [trading as TROSSINGER METALLSTIMMBNFABRIK HANSEISEN]. 13 March, 1968 [9 Feb., 1968], No. 12221/68. Heading A6S. A rockable toy figure such as a doll or animal comprises an upper portion 18 and a lower .portion 16 relatively movable, the lower part being carried on a rockable support 10, and drive means 34 to move the relative portions of upper and lower parts and displace the centre of gravity so as to rock the support. As shown, the legs 16 and body 18 of the doll are joined by axle 24. The legs are preferably pivoted individually to the axle by means of friction or clutch means. An arm 26 is mounted on the axle, and the slot 28 engages the pin 30 of a crank 36 mounted on shaft 32. Motor 44 drives shaft 32 via gear and switch means, causing the arm 26 to move the upper and lower parts relative to each other, and the doll to rock the chair.
Patent GB-298875-A (GB)
Title: Improvements in vacuum regulating apparatus
IPC: G01L7/18
Filed: 1928-04-26
Abstract: 298,875. General Electric Co., Ltd., and Weintraub, E. Jan. 5, 1928, [Convention date]. Addition to 276,333. Vacuum gauges.-A manometer is connected with the compression chamber of the McLeod gauge. When a mercury manometer is used the contacts for the electrical controlling means will be arranged so that the mercury first touches the contact corresponding to the highest vacuum and in succession those corresponding to lower vacua. Corrosion of the mercury surface due to sparking is avoided by using as the atmosphere of the auxiliary manometer chamber M a high vacuum, a rare gas, or hydrogen under low pressure. The oscillations of the mercury level may be damped, e.g. by making the capillary tube of the manometer of sufficient length. The changes of level in the manometer may be increased by increasing the volume of the compression chamber V, decreasing the diameter of the capillary compression tube, or lessening the calibre of the branch M.
Patent GB-494943-A (GB)
Title: Improvements in machines for surface hardening metal articles
IPC: C21D1/08
Filed: 1937-04-29
Abstract: 494,943. Surface - hardening metal articles. SHORTER, A. E., and SHORTER PROCESS CO., Ltd. April 29, 1937, No. 12256. [Class 72] In an apparatus for surface-hardening a plurality of metal articles simultaneously, the articles are supported so that they are in axial alignment close to a plurality of heating and quenching nozzles, at least one heating and quenching nozzle being provided for each article, the heating &c. nozzles, being mounted on traversing mechanism so that the nozzles traverse the articles simultaneously. A number of gear wheels 2 are secured by bushings 3 on a rotatable shaft 1 and the teeth of the wheels are aligned by a trueing bar 4 or other device. A gas mixing chamber 5 mounted so that it can be traversed transversely to the wheels is disposed parallel to the shaft 1, and is provided with a separate burner 6 for each wheel 1. Cooling jets 9 are also mounted on the burners, and the oxygen and fuel gas is fed to the chamber 6 by flexible pipes 7. After the surface of one tooth of each wheel has been treated, the wheels are rotated to bring the next surface to be treated into position. In a modification, separate burners are mounted on a slotted plate which is adapted to be slid in a direction parallel to the surface to be treated. Two burners may be mounted on the traversing device so that either both sides of one tooth or one side of two different teeth may be treated simultaneously.
Patent GB-286124-A (GB)
Title: Improvements in and connected with means of preventing splashing of mud and other foreign matter from motor cars, motor cycles, or other wheeled vehicles
IPC: B60B7/01
Filed: 1927-05-07
Abstract: 286,124. Maclean, N., Quinn, T., and Duffy, F. May 7, 1927. Muldguards rotating with wheels; wheels with spoke - covering discs. -A side-splash guard, which may be vulcanized to the tyre or secured to a separate carrier-ring or disc, is formed with a thickened portion G so as to leave a space D between the guard and the tyre, the part A of the guard tapering to a feather edge without being outwardly splayed from the tyre. Fig. 3 shows the guard fitted to a channel ring H which is secured to the wheel F by bolts J. Fig. 5 shows a modification in which the ring H is secured by a disc K bolted to the wheel-hub F<1>. The ring H may be dispensed with by forming the disc with a grooved edge to receive the guard. In a further modification, Fig. 9, a guard is fitted at each side of the tyre, the carrier rings M being extended around the felloe F and connected by bolts N. Specification 278,575 is referred to.
Patent GB-217197-A (GB)
Title: Installation for the separation of liquids
IPC: B04B9/06
Filed: 1924-05-19
Abstract: 217,197. Karpinsky, S., and Anderson, J. S. June 7, 1923, [Convention date]. Density seporators; driving. - A separator for complex liquids, such as milk and cream, is associated with two sets of pumps 4, 21; one set 21 discharges the liquid to be separated and the other set 4 discharges a liquid at any suitable pressure to operate the turbine 13 which drives the separator. The pumps are actuated bv a common hand-lever 2 mounted on the bellchamber 8 on the base 1. The container 16 holds water for the turbine and is connected by the pipe 5 to the pumps 4. The delivery of these pumps is connected to the bell-chamber 8 and the pipe 10 which leads to the nozzle 12 of the turbine. After actuating the turbine the water is returned to the container 16 bv the pipe 15. The set of pumps 21 draws liquid from the tank 20 through the pipes 19, 18 and discharges it through the pipes 22, 23 to the separator 31. The separator is of the suspended tubular type with tapered partitions for the collection of the separated constituents. The bottom of the rotating vessel 24 has radial flanges 36 which support a cylindrical core 37 offering resistance to the flow of liquid, so that it must be supplied under pressure, which assists the centrifugal force in obtaining separation. During the separating action the valve 39 in the bell-chamber 8 is held closed by the spring 40 and the pressure in the chamber. For buttermaking the pipe 23 is closed by the cock 41 and the pipe 11 is connected to a butter-making apparatus instead of to the turbine. The suction pipe 5 is open to the atmosphere and consequently air is discharged by the pumps 4 into the bell-chamber 8, while milk is discharged by the pumps 21 through the valve 39 into the chamber 8. Milk charged with air is thus delivered from the chamber 8 through the pipes 10, 11 to the butter-making machine which may be of the kind described in Specification 214,567, [Class 84, Milking &c.].
Patent GB-673267-A (GB)
Title: Magnetic cores for electric induction apparatus
Inventor: GLOVER WILLIAM FRANK
IPC: H01F17/06
Filed: 1950-05-17
Abstract: 673,267. Making transformer &c. cores. STANDARD TELEPHONES & CABLES, Ltd. May 17, 1950, No. 12314/50. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Angular beading.-The method of manufacturing a toroidal magnetic core having adjusted permeability comprises the steps of winding a ribbon of magnetic material into a spiral having insulation between successive turns, cutting a radial slot in the core, inserting a filler of magnetic material into the slot, adjusting the width of the residual air gaps between the filler and the sides of the slots by applying inwardly directed radial pressure to the periphery of the core and holding the airgaps in the adjusted position. The wound core 1 and the filler 2 are placed in a trough 3 and put in a jig 4, pressure being applied by the screws 5. After the air-gaps have been adjusted the free space in the trough is filled with a hard setting material and, after setting, the screws are withdrawn. The trough may be of insulating or conducting material.
Patent GB-528323-A (GB)
Title: Improvements in or relating to air-space high frequency cables
IPC: H01B11/18
Filed: 1939-04-25
Abstract: 528,323. Cables. STANDARD TELEPHONES & CABLES, Ltd., WESTON, W. K., and NUNN, D. April 25, 1939, No. 12404. (Class 36] In a high-frequency air-space cable having one or more inner conductors 1 maintained in position within an outer conductor by spaced insulating discs 2, the outer conductor consists of a metallic tape 3 folded or, as shown, wound into a tube round the discs 2 and held in position by an insulating or conducting tape or tapes 5 lapped round so that each convolution of tape 5 is supported by at least one disc 2. The edges of the tape 3 may meet or overlap, one of the edges being in the latter case stepped so as to produce a smooth internal surface. Specifications 417,929 and 507,323, [Group IV], are referred to.
Patent GB-880302-A (GB)
Title: Improvements in the curing of ethoxyline resins
IPC: C08G59/40
Filed: 1959-04-13
Abstract: A heat curable composition of matter comprises an ethoxyline resin, from 0,5 to 10 weight per cent based on the resin of a BF3 complex as defined below, and from about 1 to 3 weight per cent based on the resin of a triaryl phosphite.  Ethoxyline resins are glycidyl polyethers obtained, for example, by reacting a polyhydric alcohol or phenol with epichlorhydrin in an alkaline medium.  By triaryl phosphite is intended those aromatic phosphites free of reactive groups.  Suitable are triphenyl, diphenyl 2, 4-diethylphenyl, phenyl ethylphenyl 2, 4-diethylphenyl, bis(2, 4-dimethyl phenyl) phenyl and bis-(p-ethylphenyl) naphthyl phosphites.  The BF3 complexes are those formed with phenols, ethers or organic nitrogen compounds such as amines (aliphatic, aromatic and heterocyclic) and amides which do not have a negative group attached to the nitrogen atom, a number of such compounds being listed.  To facilitate mixing the ingredients thinners such as butyl glycidyl ether may be added.  In examples the ethoxyline resin used is prepared by the reaction of 10 mols. of epichlorhydrin with one mol. of bisphenol A in the presence of two mols. of sodium hydroxide.  Portions are mixed with triphenyl phosphite and a BF3-monoethylamine complex in various amounts.  The mixtures are poured into moulds and cured by heating.  Values of the heat distortion temperature of the products, and also of those using no phosphite and 4% phosphite, respectively, are tabulated.
Patent GB-1091593-A (GB)
Title: Fatty emulsions and their preparation
Inventor: MORAN DAVID PATRICK JOSEPH
IPC: A23D7/005
Filed: 1964-03-25
Abstract: A fatty food composition which is a plastic oil and water emulsion comprising a continuous phase of semi-solid fat and a disperse phase which is a stabilized emulsion of a liquid fat in water is made by forming an aqueous solution of a colloid and a sequestering agent, dispersing the fat required in the disperse phase in said aqueous solution to form a cream, homogenizing the cream to obtain a particle size of 0.5 to 1.0 microns, blending the homogenized cream into the fat required to form the continuous phase and chilling the resulting mixture by passage through a scraped-surface heat exchanger. Suitable emulsion stabilizers are casein including milk serum, gelatine especially when used together with casein, soyabean protein, water soluble alginates and gums, and carboxymethyl cellulose. Edible emulsifiers such as mono- and di-glycerides of stearic and other higher fatty acids, fatty acid esters of polyglycerol, partial fatty acid esters of polyhydric alcohol anhydrides, and partial fatty acid polyalkylene esters of polyhydric alcohol anhydrides.  The preferred sequestering agent is sodium tripolyphosphate but trisodium citrate is also specified.  After the preparation of the aqueous phase its pH is adjusted to about 5 to 7 by the addition of citric acid.  Salt may be included.  The semi-solid fat preferably contains an edible emulsifier such as lecithin.  Oil-soluble flavourings may advantageously be incorporated in the liquid fat disperse phase. Fats exemplified are: liquid fats - palm, groundnut, sunflower and safflower oils; semi-solid fats - hardened fish oil, butter fat; a blend of palm stearin with palm kernel and sunflower oils; and a blend of lard monoglycerides with an interesterified mixture of sunflower, coconut and hardened palm oils.
Patent GB-647583-A (GB)
Title: Improvements in radio location and detection arrangements
Inventor: DAWSON LESLIE HOWARD
IPC: G01S13/34
Filed: 1947-05-09
Abstract: 647,583. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 9, 1947, No. 12668. Drawings to Specification. [Class 40 (vii)] In F.M. radar systems of the kind wherein the frequency of transmitted continuous wave energy is linearly varied during transmission (e.g. saw-tooth or triangular modulation) and received reflected energy is combined with energy then being transmitted to produce a beat-frequency which is a measure of the distance of the reflecting target, it has been found that the periodic discontinuities in frequency variation cause sharp beat note voltage and phase changes which have a high harmonic content and cause false echo indications. A further defect in such systems is the spreading of echo " blips " on the cathode-ray tube screen due to non-rectilinearity in the limits of transmitter modulation when the frequency deviation is large. The present invention overcomes these defects by providing means whereby the radar system is smoothly rendered inoperative or of substantially reduced sensitivity during the short periods of discontinuity and regions of non-rectilinearity in the variation of the transmitted frequency. This is done by the application of a control voltage (synchronized with the transmitter modulator and preferably substantially sinusoidal) in any convenient manner known per se to reduce smoothly either the transmitted amplitude or the receiver gain, or both, during the said short periods. This voltage may be derived from a separate source or directly from the transmitter modulator. Specification 541,399 is referred to and Specifications 620,568 and 621,846 are referred to in the Provisional Specification.
Patent GB-528126-A (GB)
Title: Improvements in or relating to textile printing machines
IPC: B41F13/02
Filed: 1939-04-27
Abstract: 528,126. Printing-machines; feeding webs. UNITED MERCHANTS & MANUFACTURERS, Inc. April 27, 1939, No. 12673. Convention date, Sept. 29, 1938. [Classes 100 (i) and 100 (ii)] In a fabric printing machine, the length of the engraved portion of the printing cylinder is equal to the width of the web being printed so as to avoid the use of a back grey, the web being fed to the cylinders by' a tenter frame provided with adjusting means automatically actuated to keep the edges of the web in register with the ends of the engraved portion. The tenter frame 10 feeding the web 11 is adjustable laterally by a screw 32 operated by a reversible electric motor 37 the self-centring reversible switch 54, 55 of which is actuated by one or the other of two .magnets 52, 53 controlled by photo-electric cells 50, 51 positioned at opposite edges of the web adjacent the printing cylinder. The printing cylinder is adjustable axially to initially align the engraved portion with the edges of the web by means of a screw operated sliding block engaging between collars on the cylinder shaft. Between the tenter frame and printing cylinders, the web passes through a suction box in contact with a rotary brush.
Patent GB-502518-A (GB)
Title: Improvements in and relating to methods of insulating electric conductors
IPC: H01B3/18
Filed: 1938-04-28
Abstract: 502,518. Coating wire. BRITISH THOMSON-HOUSTON CO., Ltd. April 28, 1938, No. 12724. Convention date, April 30, 1937. [Class 95] An electric conductor is insulated with a synthetic plastic material by passing it through a hot solution of the insulating-material in a water-miscible solvent, e.g. acetonyl acetone or dioxane, then through a bath of water to extract the' solvent and finally through a drying oven. In a modification, water-immiscible alcohol-soluble solvents such as fenchone are used and the coated conductor is treated with an alcohol. The plastic material may be, a cellulose derivative, e.g. nitrocellulose, cellulose acetate or ethyl cellulose, a polyvinyl halide such as polyvinyl chloride, a polyvinyl ester, or the reaction product of formaldehyde with hydrolysed polyvinyl acetate. The example describes the use of a composition comprising polyvinyl chloride, triphenyl phosphate, white lead and asbestine. The insulating material may be applied to bare wire or to wire insulated for example with rubber. Pigments may be added to the coating composition.