baber/WOPTO huggingface dataset:
Patent GB-688838-A (GB)
Title: Improvements relating to reaction motors
Inventor: MANDERILLE CHARLES
IPC: F02K9/38
Filed: 1950-02-24
Abstract: 688,838. Rocket motors. WILMOT MANSOUR & CO.. Ltd. Feb. 23, 1951 [Feb. 24, 1950], No. 4860/50. Class 9(ii) A rocket motor for model aircraft or model vehicles has a casing 1 closed at the forward end and provided with a screwthreaded cap 2 at the rear end, a washer 3 being interposed between the cap and the casing. In the cap is an eccentric nozzle 4 and two openings 11 tapped to receive valve fittings 5. The valves are closed by steel balls 6 pressed by cups 7 carried by a leaf-spring 8 held by a mounting 9 on the cap 2. The mounting 9 is of heat-insulating material and the cups 7 are lined with asbestos to minimize the amount of heat transmitted to the spring. In-an alternative arrangement, the nozzle is centrally placed in the cap and is surrounded by symmetrically arranged holes. These holes are closed by a frangible disc adapted to rupture at abnormal pressures within the casing. The disc may be of thin asbestos paper. In place of a frangible disc. the opening may be closed by a wad adapted to be blown out of the opening.
Patent GB-809671-A (GB)
Title: Improvements in or relating to nuclear fuel elements
Inventor: FINNISTON HAROLD MONTAGUE
IPC: C25D5/46
Filed: 1949-02-22
Abstract: An aluminium can for a nuclear fuel element is degreased and then immersed in five per cent caustic soda solution at 60 DEG C. for two minutes, washed, immersed in 40 to 70 per cent nitric acid solution for one minute, washed with cold and then hot water and dried in an oven.
Patent GB-1132732-A (GB)
Title: Clip hinging together adjacent units
Inventor: BARNSHAW FRANK ROBINSON
IPC: C04B35/26
Filed: 1965-02-04
Abstract: 1,132,732. Clip fastenings; hinges. ZAMBA CO. Ltd. 4 Feb., 1966 [4 Feb., 1965], No. 4905/65. Headings E2B and E2F. A clip 1 hinging together two adjacent units A, B of the kind having rods intersecting at right angles to form a grid is formed from a blank of bendable material and comprising two pairs of aligned sleeves 7 formed from the marginal portions of opposite sides of the blank, said sleeves extending from a planar central portion, the axes of both said pairs of sleeves being parallel to and on the same side of the plane of the said central portion, there being provided between the sleeves of each pair a notch 4, the said sleeves enclosing adjacent marginal rods 5 of the units and the notch accommodating the end portions of intersecting rods 6 and serving to locate the clips lengthwise of said marginal rods 5. With this arrangement the clip is prevented from moving along the rods 5. The assembly can form part of an incinerator, a fire-guard, a fence or a pen.
Patent GB-940348-A (GB)
Title: Improvements in the production of brewers' wort and apparatus therefor
Inventor: TEIGNMOUTH SHORE DAVID
IPC: C12C7/06
Filed: 1961-02-09
Abstract: <PICT:0940348/C3/1> <PICT:0940348/C3/2> In the production of brewers' wort by mashing a mixture of goods and liquid, the mixture is moved in two separate flows the first flow having a larger proportion of starch than the second flow which is rich in amylolytic enzymes, the first flow is passed as a quiescent plug through a heating zone to create a proteolytic reaction in the plug, the second flow is passed through a temperature controlled zone, and the two flows are united subsequent to the first flow moving through the proteolytic reaction zone, the temperature and proportions of the reunited flows being such as to favour the subsequent saccharification of starch.  Double decoction process (Fig. 1).  Malt and liquor supplied to a centrifugal mixer 2 are separated into a "thick" starch-rich mash and a "thin" mash rich in water-soluble amylolytic enzymes from the periphery and axis respectively of the chamber of the mixer.  The thick mash is passed in quiescent plug flow through a heater 6 for proteolysis at a temperature between 120 DEG  and 130 DEG F., through a further heater 7 wherein the starch undergoes saccharification and heater 8 to promote liquefaction of the as yet unsaccharified starch. The thin mash is passed through a temperature controlled heater 12 to rejoin the thick mash in a further centrifugal mixer 9.  Thick and thin mashes separated by the mixer 9 are further heattreated in a manner similar to that for the mashes separated from mixer 2 with complete saccharification in the thick mash; the mashes are re-united in a collector 17 and then passed to a rotary filter 20.  In an alternative procedure heaters 7 and 8 are omitted.  Two-stage infusion process (Fig. 2).  Thick mash flow from a mash mixed 22 is moved as a quiescent plug through a heater 23 in which proteolytic action occurs.  A thin mash of raw starch (amounting to between 20% and 40% of the grain feed) and liquor, which may contain a little malt or other enzyme material to assist liquefaction, is cooked to gelatinization temperature i.e. above 180 DEG F., in a heater 25. The thick and thin mashes are combined in a centrifugal mixer 24 and then further heat-treated in the manner described in connection with Fig. 1. In a practical example for brewing plant producing 2000 barrels per week by continuous production employing 336 lbs. of malt per hour, the plug flow sections will contain approximately 85% of the starch, the ratios of water to grist in the thick mash in plug flow and thin mash will be 2:1 and 4:1, respectively, the tube diameters being respectively 3 inches and 1 inch.
Patent GB-139200-A (GB)
Title: Improvements in and relating to the propulsion of submarines
IPC: B63G8/08
Filed: 1920-02-19
Abstract: 139,200. Siemens - Schuckertwerke. Oct. 24, 1914, [Convention date]. Propelling, steering, and manoeuvring submarine vessels.-In addition to the usual propelling engines, others of small power sufficient to maintain steering way when submerged are adapted to drive the main propeller shaft through gearing or separate special propellers. The motors employed may be electric, internal combustion, or heat engines. When adapted for driving main shafting the latter is declutched from the main engine shafting. In the case of internal combustion engines, the exhaust is removed by a pump and an atomizer is provided for the emerging gases.
Patent GB-576618-A (GB)
Title: Improved clockwork spring drive
IPC: G04B1/12
Filed: 1945-03-01
Abstract: 576,618. Multiple. spring motors. MADGE, R. G. March 1, 1945, No. 5091. [Class 10] In a multi-flat coil flat spring unit the increasing diameter of theworking spring trips the next spring into action, the dead spring being isolated. Each spring C, attached at one end to a bar C<2>, is mounted on a flanged sleeve B, fitted with a pawl B' and recesses B<2>. The trip lever D, pivoted at F<3>, rests against the spring, the expansion of which pushes the lever to disengage the pawl D<1> from the flanged sleeve B belonging to the next spring. The flanged sleeve B starts to revolve, engages the cam wheel A<1>, and turns the shaft A to which the cam wheel A<1> is attached. When the spring is not in use the pawl B<1> rides idly over the cam wheel A<1>. Any number of springs may be used simultaneously by tripping the requisite number of levers.
Patent GB-1354044-A (GB)
Title: Radiographic reduction methods
IPC: G02B27/00
Filed: 1972-02-03
Abstract: 1354044 Projection printing LOGETRONICS Inc 3 Feb 1972 [2 Aug 1971] 5134/72 Heading 92A and 92X A radiographic original 11 having a relatively wide total image density range between 0À0 and 4À0 is printed on a reduced scale on to a dualgradient contrast characteristic record film 14 by the moving spot of light generated in a CRT 10 to produce a copy having a linearly compressed density range. The arrangement is such that any image densities in said original in the range 0 - 2À0 are recorded on the higher contrast gradient portion of the record film and any image densities in excess of 2À0 are recorded on the lower contrast gradient portion. The apparatus is provided with photo-cell detector means 16 which monitors the exposing light beam and controls the intensity of the beam or the deflection velocity on the CRT screen to produce an effect equivalent to "unsharp masking" on the record film over the density range 0 - 2À0. The CRT may be replaced by a scanning laser-beam.
Patent GB-1009885-A (GB)
Title: Improvements in or relating to electric heating devices
IPC: H01H37/36
Filed: 1961-02-11
Abstract: 1,009,885. Temperature responsive actuating elements. J. ARCHER and J. L. OWNER. Feb. 12,1962 [Feb.11, 1961], No.5162/61. Heading G1D. A heating device having an elongated heating element 2 housed in an insulating tube 1 which tube contains a fluid in a gaseous state, for example air, the heating element 2 being wound upon a core 3 of fibrous material into which has been taken a small quantity of a second fluid in a liquid state, for example water, is provided with a bellows 13 to enable changes in the temperature of the heating device to be detected, the gaseous fluid mainly controlling movement of the bellows 13 over the normal temperature range of the device whilst for abnormally high temperatures of the device the movement of the bellows is controlled mainly by the liquid fluid by the increase of pressure which occurs in the device by the change of the liquid into a gas. The bellow is operative to cycle the heating supply by operation of contacts 18,19. Alternatively the second fluid may be contained in a reservoir in contact with the heating element. In a further embodiment one fluid only is used of which part is absorbed into a material such as charcoal which may be incorporated in the fibrous core 3, the remaining part of the fluid being contained in a gaseous state by the tube 1. During absorption the fluid is said to be in a liquid state. Specifications 1,008,311 and 1,009,886 are referred to.
Patent GB-752240-A (GB)
Title: Improvements in or relating to a process of coating propellent grains with a modifier
IPC: C06B21/00
Filed: 1954-02-23
Abstract: 752,240. Costing propellent grains. OLIN MATHIESON CHEMICAL CORPORATION. Feb. 23, 1954 [March 5, 1953], No. 5270/54. Class 9(2) Propellent powder grains are coated with a modifier of the ballistic properties of the powder grains by grinding a solid modifier to particulate form of less than 30 microns size, preferably 3-10 microns, while it is suspended in a substantially anhydrous liquid, which is a non-solvent for the modifier, and maintaining the resulting particles of modifier anhydrous and in discrete form until the powder grains having their surfaces softened by a plasticizer are coated therewith. The modifier is bound to, or embedded in, the surface of the grains. Modifiers referred to are potassium, ammonium, or barium nitrates, black powder, or potassium sulphate or bichromate. Non- solvent liquids may be those with boiling points below 100‹C., e.g. isopropyl or methyl alcohols, benzene, toluene, or ethyl ether, compatible with nitrocellulose plasticizers, which may be mixed with, or, if solid, dissolved in the non-solvent liquid, e.g. dibutyl or diphenyl phthalate, diaryl dialkyl ureas, dinitrotoluene, dimethyl sebacate, triphenyl phosphate, or triethyl glyco di-2 ethyl butyrate. The plasticizer may be used alone as the non-solvent, or may be applied separately. Preferably a minor amount of rosin, ethyl cellulose, nitrocellulose, polyvinyl chloride, polyvinyl acetate, or styrene may be dissolved in the grinding medium. A suitable mixture is 20-60 parts non-solvent liquid, 10-20 parts plasticizer, and 0.1-1.0 part rosin, &c., and the ratio of modifier to liquid may be from 3 to 1 to 1 to 4. Calcium carbonate and diphenylamine or ethyl centralite stabilizer may be added. In examples, potassium nitrate ground in a, hammer mill is ground in a ball mill with the liquid. Globular propellent grains, which may or may not have been first coated with dinitrotoluene, are tumbled in a sweetie barrel with the resultant nitrate suspension, or with the modifier separated from most of the suspending liquid by filtering. The volatile non-solvent is evaporated from the grains, which are then graphite coated. Specification 473,057 is referred to.
Patent GB-773885-A (GB)
Title: Improvements in signs
IPC: G09F7/02
Filed: 1954-02-23
Abstract: 773,885. Signs. PEARCE SIGNS, Ltd., and PEARCE, J. H. G. Feb. 23, 1955 [Feb. 23, 1954], No. 5301/54. Class 3 (2). A sign is made by simultaneously cutting characters from two superimposed panels which are contrastingly coloured or are of different translucency &c. the character cut from one panel being mounted in the corresponding opening in the other panel and retained therein by a metal surround, such as 6 or 10-see Figs. 7 and 8 respectively, which is provided with tongues 9 for mounting purposes. The characters may be thicker or thinner than the background panel and may have bevelled edges. The surround 6 or 10 may be made of lead or stainless steel or treated to render it light reflecting. The sign may be illuminated by one or more neon or fluorescent tubes or electric lamps. The panels may be composed of an opaque, translucent or transparent material and may be made of methyl-methacrylate.
Patent GB-779446-A (GB)
Title: Commercial ice-cream freezer
IPC: A23G9/20
Filed: 1956-02-21
Abstract: 779,446. Ice-cream freezers. SWENSON H. F. Feb. 21, 1956, No. 5303/56. Class 29 Relates to an ice-cream freezer comprising a refrigerated cylinder 13 from which a frozen portion is discharged through an outlet 38 by a motor-driven dasher 30 when a valve 39 is opened. According to the invention, the valve 39 is opened and the dasher motor is energized at will either manually or by electrical means including a timer which acts to close valve 39 after a predetermined time has elapsed. As shown, the dasher comprises a spiral 60, stay rods 61 and pivoted scrapers 63, and is driven through a shaft 27 having a spigot and socket connection with the rear header plate 32 of the dasher. The dasher is so constructed as to maintain the bulk of the mix in the front part of the cylinder. A pipe 46 extends from a mix tank 15 to the rear end of the cylinder and within the pipe is a tube 52 which extends above the liquid level in tank 15, has a part 51 which obturates the lower part of pipe 46 and has holes 53 just above part 51. When a frozen portion is withdrawn through outlet 38, a replacement is drawn in through pipe 46, holes 53 and tube 52, the requisite amount of air entering through the upper part of tube 52. Alternatively a valve in pipe 46 can be opened, whenever valve 39 is opened, by a solenoid. The refrigerant compressor 76 is driven by electric motor 26 which also drives the dasher 30 and the refrigerant circuit includes condenser 82 (the water supply to which is controlled by the discharge pressure), precooler 74, expansion valve 86, the evaporator jacket of cylinder 13, and a cooling coil 17 around the mix tank 15. If dasher operation, but not refrigeration, is desired, the compressor is unloaded by opening a valve 80 in a pipe joining the compressor discharge and suction. When excessive discharge pressure occurs, the machine is shut down by a pressure-operated switch 93. Valve 39 is closed by gravity and opened either by a solenoid 42 or by lifting a handle 44, and when the valve is open a switch 45 is closed to energize the motor 26. In operation, either tube 52 is raised by hand or the valve in pipe 46 is opened by actuation of a hand switch to allow a charge of mix to flow into the cylinder 13 and then the tube is lowered or the hand switch opened. Motor 26 is energized to drive the compressor and dasher, thermostat controls being by-passed to ensure quick freezing. The thermostat is then put in circuit. When a portion of frozen mix is desired, the timer dial is set to the desired time. to select the size of portion and, upon operation of a foot-switch, the timer is energized to open the valve 39 and energize the dasher motor for the predetermined time. Alternatively, a hand switch can be closed to short circuit the timer and then the valve 39 can be opened for as long as required by hand, the switch 45 energizing the dasher motor to ensure discharge of the mix. An electric circuit is described to perform the above operations.
Patent GB-1161967-A (GB)
Title: Polymerization of 1,3-Butadiene
IPC: C08F4/70
Filed: 1968-02-02
Abstract: 1,161,967. Polymerization catalyst for butadiene. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 2 Feb., 1968 [6 Feb., 1967], No. 5320/68. Heading C3P. A polymerization catalyst for butadiene comprises a nickel or cobalt perchlorate and an organometallic compound of the formula, R m MX n , where R is an alkyl, aryl, or cycloalkyl radical, M is a metal of Groups I to III of the Periodic Table, X is H or halogen, m is 1, 2 or 3, n is 0, 1 or 2, and m+n is equal to the valency of the metal M. The perchlorate may contain water of crystallization. The catalyst may be " preformed " or formed " in situ." The catalyst may be formed and the polymerization carried out in an inert solvent. Bulk polymerization is also possible. In the examples, butadiene is polymerized, and recovered by conventional techniques. The polymer has a high cis-1,4 structure and may be sulphur vulcanized.
Patent GB-525336-A (GB)
Title: Improvements relating to loading mechanism for machine guns
IPC: F41A17/38
Filed: 1939-02-17
Abstract: 525,336. Machine guns. NORTH, J. D., and BOULTON PAUL AIRCRAFT, Ltd. Feb. 17, 1939, No. 5380. [Class 92 (ii)] A box-type cartridge magazine 10 for heavy machine guns is retained on the gun by spring- loaded catches 16, 18 at each side of the loading opening and power means 48 is provided for retracting the catches to permit removal of the magazine. Flared openings 42 leading to the loading opening and inclines 38 on the catches facilitate " slamming" the magazine on the breech, the catches engaging over a rim 14 on the magazine. Two forms of catch are illustrated with separate pneumatic piston devices for releasing the catches. In a modification, a single pneumatic cylinder may be used the catches being connected by a rod for simultaneous release.
Patent GB-1098942-A (GB)
Title: Improvements in or relating to organic halides
Inventor: LONG LEONARD HAYNES
IPC: C07C17/00
Filed: 1964-02-10
Abstract: The invention comprises 4-iodobutan-1-ol and a general method for making organic halogen compounds by reacting in the liquid phase an organic compound containing an ether, epoxide, hydroxy, aldehyde or ketone group with a halogen in the presence of a hydro-boron compound to effect cleavage of the carbon-oxygen link to produce an oxygen-boron link and replacement of the oxygenated substituent by the halogen.  The term "halogen" is defined as Cl2, Br2 or I2 or interhalogen compounds. The term "hydro-boron" compound includes any compound containing at least one B-H bond.  Specified hydro-boron compounds include diborane, pentaborane, decaborane and the alkali metal and alkaline earth metal hydroborides. The reaction usually takes place readily at room temperature, but elevated temperatures can be used.  When the organic reactant is an ether, aldehyde or ketone, boron esters are obtained as by-products.  If the organic reactant is an epoxide, the halogenated product is a halogenated organic ester of boric acid which may be hydrolysed to a halogenated alcohol.  Numerous examples are provided.
Patent GB-839598-A (GB)
Title: Domestic cookers
Inventor: CARTER RONALD DAVID
IPC: F24C15/02
Filed: 1958-02-20
Abstract: 839,598. Cooker doors. REVO ELECTRIC CO. Ltd. Feb. 17, 1959 [Feb. 20, 1958], No. 5523/58. Class 126 The drop - down door 6 of a grill chamber beneath the hob (not shown) of a cooker has one e flange 8a of a sheetmetal angle bracket 8 secured to its upper edge. The other flange 8b on which is mounted a handle 9 of angle or inverted channel section extends at right-angles to the flange 8a so that the handle 9 is disposed wholly above the door 6 when the latter is closed. One or more apertures 10 at or near the bend of the bracket 8 allows hot air rising from the door 6 to pass between the flange 8b and the hob.
Patent GB-557044-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/224
Filed: 1942-04-27
Abstract: 557,044. Condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. April 27, 1942, No. 5594. [Class 37] A condenser element 1 is inserted in a tube 2 larger than the element so closed at the ends by discs 4 which are held in place by sninning over the ends 5 of a further outer tube 3. Terminals are formed by coiled wires 6 pressed on to the edges of the foils projecting from each end and the spaces are filled with sealing material preferably ionserted molten under vacuum. Specification 557,043 is referred to.
Patent GB-750843-A (GB)
Title: Improvements in heat sensitive electrical devices
Inventor: REYNOLDS EDWARD HENRY
IPC: H01B7/32
Filed: 1954-02-25
Abstract: 750,843. Fire alarm systems. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 25, 1955 [Feb. 25, 1954; May 14, 1954; May 14, 1954; May 14, 1954], Nos. 5634/54, 14263/54, 14264/54 and 14265/54. Class 118(1) [Also in Group XXXVI] A fire alarm system comprises one or more temperature-sensitive devices (see Group XXXVI), two conductors of which are connected to an electric supply by a circuit which includes a device responsive to a fall of resistance between the conductors. In one arrangement, four devices 53-56 are connected to terminals of one bank 57 of a two-bank uni-selector switch. The corresponding terminals of the other bank 58 are connected to lamps 59-62. As the switch rotates the devices 53-56 are successively connected with a D.C. supply 63 through a relay coil 64. When one of the devices 53-56 becomes conductive the relay 64 breaks the power supply to the switch so that it stops in the position in which the moving arm of bank 57 makes contact with the terminal connected to the device in question. The corresponding lamp remains alight until the switch is restarted or until the conductivity of the device in question falls.