baber/WOPTO huggingface dataset:
Patent GB-263076-A (GB)
Title: Process for the production of celluloid-like masses
IPC: C08K5/00
Filed: 1926-01-27
Abstract: 263,076. I. G. Farbenindustrie Akt.- Ges. Dec. 21, 1925, [Convention date]. Addition to 247,174. Patent abandoned on opposition. Plastic compositions containing nitrocellulose. -The celluloid-like products obtained in the parent Specification are mixed with softening agents e.g. esters of glycolic, acetic, oxalic and phthalic acids or hardening agents e.g. chloral, hexachlorethane &c.
Patent GB-675612-A (GB)
Title: New substance serving as generator for vitamin d3
IPC: A61K31/593
Filed: 1950-01-31
Abstract: The invention comprises a compound designated "previtamin D3," isomeric with vitamin D3 and convertible thereto without the action of light, and its esters with organic acids; p  the preparation of these substances by chromatography (followed, if desired, by alkaline saponification at a temperature not above 15 DEG  C.) from the mixture of esters of previtamin 3D and vitamin D3 obtained by (a) irradiating 7-dehydrocholesterol, separating unchanged 7-dehydrocholesterol and esterifying the residue, all at a temperature not above 25 DEG  C., or (b) heating an ester of vitamin D3 at a moderate temperature not substantially above 60 DEG  C. in a hydrocarbon solvent containing not more than 12 carbon atoms in the molecule (e.g. benzene); and the conversion of the products to vitamin D3 or its esters with organic acids by heating to a moderate temperature (preferably not above 80 DEG  C.) in a solvent such as benzene.  The chromatography may be effected by adsorption (e.g. from benzene solution) on neutral alumina and elution with ligroin, the previtamin D3 ester being obtained from the least strongly adsorbed fraction and, if desired, recrystallized from methyl ethyl ketone. The previtamin D3 obtained by saponification may be re-esterified by the action of acid chlorides or anhydrides. Examples describe the preparation of previtamin D3 3 : 5-dinitrobenzoate by methods (a) and (b), and its conversion to vitamin D3 3 : 5-dinitrobenzoate. Specification 668,114 is referred to.
Patent GB-576832-A (GB)
Title: Surgical splints and casts
IPC: A61F5/058
Filed: 1943-02-16
Abstract: 576,832. Surgical casts or splints. ANDERSON, R. Feb. 16, 1943, No. 2561. [Class 81 (ii)] A surgical cast or splint is made by applying about the injured member a multiplicity of solid discrete elements of "plastic" material (i.e., material such as synthetic phenol derivatives, cellulose nitrate or acetate or ethyl cellulose derivative, celluloid, a vinyl resin, a casein derivative, a polystyrene, a nylon &c.) with the elements in contacting relation and then causing the elements to adhere at their contacting portions to form a unitary structure. The elements may be helices 70 Fig. 1 interconnected or interthreaded and then caused to adhere. The elements may also be hollow structures of other kinds, or solid coated or uncoated elements may be used. As adhesive, substances of which the following are examples may be used: acetone, sec.-butyl alcohol, carbon disulphide, ethyl or n-amyl alcohol, methyl acetone, n-amyl, isobutyl, "carbitol," ethyl, methyl, amyl, or methyl amylacetate; di-ethyl cellosolve, benzyl cellosolve, acetylene dichloride, n-butylamine, methyl ethyl ketone, cellosolve, methyl cellosolve acetate.
Patent GB-768666-A (GB)
Title: Improvements relating to the production of polymeric materials
Inventor: ROBERTS ROBERT
IPC: C08F2/54
Filed: 1953-01-30
Abstract: Ethylene is polymerized or copolymerized with other substances copolymerizable therewith, such as styrene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, methyl methacrylate, acrylonitrile, propylene, butylene, isobutylene or carbon monoxide by exposing the monomers to the action of g -rays at a temperature of from 10 DEG  to 75 DEG  C. and a pressure of from 80 to 200 atmospheres.  The g -rays are preferably of energy up to 4 m.e.v. and may be derived from cobalt 60, caesium 137 or from uranium slugs or radioactive waste products from an atomic pile. Specification 768,669 is referred to.ALSO:Ethylene is polymerized or copolymerized with other substances copolymerizable therewith by exposing the monomers to the action of g -rays at a temperature of from 10 DEG C. to 75 DEG C. and a pressure of from 80 to 200 atmospheres.  The g -rays are preferably of energy up to 4 m.e.v. and may be derived from cobalt 60, caseium 137 or from uranium slugs or radioactive waste products from an atomic pile.  Specification 768,669 is referred to.
Patent GB-999618-A (GB)
Title: Method of producing deuterium-enriched or heavy water
IPC: C01B5/02
Filed: 1962-01-24
Abstract: A process for the production of deuterium-enriched or heavy water comprises isotope exchange between liquid ammonia and gaseous hydrogen in a first stage, further increasing the deuterium content of the ammonia by isotope exchange with hydrogen in an intermediate stage, converting the ammonia to water, separating at least a part of the water in a separating stage into a less highly deuterium-enriched part and a part which is either more highly deuterium-enriched or is heavy water, converting the less highly deuterium-enriched part to hydrogen, reducing the deuterium content of the thus produced hydrogen by exchange with the ammonia in the intermediate stage, combining the deuterium impoverished hydrogen from the intermediate stage with further hydrogen of substantially the same deuterium content, and introducing the thus produced hydrogen into the first stage as the said hydrogen with which the isotope exchange takes place. A part of the <PICT:0999618/C1/1> water into which the ammonia is converted may be introduced into the separating stage and the remainder may be converted to hydrogen, the deuterium content of which is reduced by isotope exchange in a further stage with ammonia which has left the intermediate stage to a value substantially equal to that of the hydrogen into which the less highly deuterium-enriched part of the water has been converted, the last-mentioned hydrogen is combined with the hydrogen which leaves the said further stage, and the thus produced hydrogen is introduced into the intermediate stage. In the Figure, hydrogen from electrolyzer 1 is mixed with hydrogen from vessel 16 and flowed in countercurrent to liquid ammonia in column 4. Ammonia from this vessel then flows in countercurrent to gaseous hydrogen in vessels 16 and 20.  After removal of catalyst, the enriched ammonia from 20 is converted to water in oxidizer 10 and part of the water produced diverted to 12, where heavy water is produced by fractional distillation.  The remainder of the water from 10 is passed to electrolyzer 22 where hydrogen is produced and fed to the bottom of column 20.
Patent GB-615640-A (GB)
Title: Improvements relating to ammunition projectile fuzes
IPC: F42C15/196
Filed: 1946-01-28
Abstract: 615,640. Ammunition projectile fuzes. AMP CORPORATION. Jan. 28, 1946, No. 2743. Convention date, May 5, 1945. [Class 9 (i)] A fuze includes a head having an axial passage in which is mounted a striker for actuating a firing mechanism which, as the projectile accelerates, maintains a centrifugally controlled rotor containing a detonating charge near the rear of the passage in an unarmed position and during deceleration releases said rotor so that the latter may move to an armed position to be struck by the firing pin when the pin is driven back by the striker upon hitting an object. In the construction shown the fuze body 1 has an axial bore 39 terminating in a counterbore 27 which is screw-threaded to receive a retainer 5. The retainer has a seating for a spherical rotor 13 which contains, in a diametrical bore, a detonating charge 20. This charge is, as shown, held out of alignment with a passage 9 leading to a booster charge by a pin 23 and a sleeve 35. The sleeve 35 engages in any one of three recesses symmetrically arranged around the axis of the bore in the rotor and is located in the bore 39 with its forward end abutting against detent slides 43. Those slides are held inwards by a spring 45 and are formed with undercut bevelled heads which between them hold the undercut head 57 of a firing pin 53. In front of the firing pin and located in the tapered part of the bore 39 is a hollow striker 65 having a closed front end and in front of the striker is an impact diaphragm 93 of a fuze cover 91. A part 99 of the cover is made thinner than the rest so that it may be readily broken by a tool for rotating a cup 75, such rotation of the cup serving to withdraw the pin 23 from the rotor. Such action sets the fuze for point detonation and in operation the slides move outwards under centrifugal force after being released by the forwardly moving firing pin when the projectile is in flight, the sleeve 35 creeps forwards as retardation of the projectile sets in, and the rotor now free, moves under centrifugal force to a position in which its charge 20 is in axial alignment with the firing pin and passage 9. At the same time the tapered bore permits the striker to spin in the conical bore and thus to bear firmly against the diaphragm, and consequently it is driven rearwardly to actuate the firing pin when the projectile strikes an object. Specification 615,625 is referred to.
Patent GB-800473-A (GB)
Title: Improvements in or relating to apparatus for use in blending or mixing operations
Inventor: PRICE WILFRED BARRIE
IPC: G01K1/02
Filed: 1955-01-29
Abstract: 800,473. Thermometers. PRICE & SONS, Ltd., W. Jan. 30, 1956 [Jan. 29, 1955], No. 2746/55. Addition to 739,374. Class 97(3) Apparatus, as in the parent Specification, for use when blending two constituents in constant or substantially constant proportions, and for measuring the temperature of one constituent and indicating the temperature required for the other constituent to give a required predetermined mixture temperature, is modified by the provision of a scale on which different values of the required mixture temperature may be set, the temperature of the other constituent being indicated accordingly. In the form shown, the temperature sensitive elements 11, 12 rotate, respectively, the pointer 13 and the scale 15. The scale 14, co-operating with the pointer 13, is rotated relatively to the scale 15 until the index 18 is aligned with the reading on the scale 15 corresponding to the mixture temperature required and then secured by the screw clamp 16 engaging the slot 17. As used for bakery purposes, the element 11 is placed in the flour and the pointer 13 indicates on the scale 14 the temperature of water required to produce the desired mixture temperature, the rotation of the scales 14. 15 produced by the element 12, providing a correction 'for changes of air temperature. In another construction, the element 11 rotates a scale of mixture temperatures relatively to which is set a pointer indicating the required temperature and co-operating with a scale of water temperatures rotated by the element 12.
Patent GB-721470-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/36
Filed: 1952-02-01
Abstract: 721,470. Fusible cut-outs. BESWICK, K. E., BESWICK, D. G. E., MELBOURN, W. F., and PYE, Ltd. April 30, 1953 [Feb. 1, 1952), No. 2800/52. Class 38 (1). A cartridge fuse comprises a high-melting-point conductor 5 and a spring 1 connected in series by a low-melting-point alloy 6, the outer ends of the conductor and spring being soldered to end caps 8. 3 of a glass casing 7 with the spring in tension. The inner end of the spring is reduced to form a container 4 for the alloy 6 so that the mass and shape of the blob of alloy can be controlled. The container may comprise a metal pot or spiral of sheet metal or wire and it may be approximately the same diameter as the main part of the spring and spaced therefrom by a spaced convolution of the spring or by a convolution of wire of larger diameter than the spring. Two helical springs or two different springs may be employed, joined together by the alloy 6.
Patent GB-999308-A (GB)
Title: Mixing apparatus
IPC: B29B7/40
Filed: 1962-01-25
Abstract: 999,308. Mixing liquids. DAYCO CORPORATION. Jan. 25, 1962, No. 2882/62. Heading B1C. An apparatus for the continuous mixing of liquids, especially the components of polyurethane resins, comprises a mixing head formed in two partly symmetrical sections 1, 1<SP>1</SP> hinged together at 2a and clamped by a bolt 26<SP>11</SP>, the halves 8a, 8<SP>1</SP>a of a mixing chamber 8 being formed in the respective meeting faces. The mixing chamber has a stirrer rod 75 possessing arcuate lands 76a and rotated by an air motor 77, Fig. 1 (not shown), carried by the mounting ring 76. In each mixing head section one of the mixture components is introduced through a fitting as at 19a and passes by a duct 17, a bore 21 in a rotatable plug cock 20, a duct 18 and a nozzle 19 to the mixing chamber ; part is also recirculated through the duct 23 and pipe 25. A heat exchange fluid such as hot oil is circulated through the pipe 53 and duct 9. Cleaning fluid is supplied through the pipe 52 and when it is desired to purge the apparatus the plug cock 20 is turned to align the bore 21 with the ducts 13, 14 and connect the bore 22 between the ducts 16, 18. The plug cocks 20, 20<SP>1</SP> may be turned further to cut off supply to the mixing chamber of both mixture components and cleaning fluid, when the mixing head may be opened for mechanical cleaning while permitting the mixture components to continue to recirculate through the pipes 25, 25<SP>1</SP>.
Patent GB-219600-A (GB)
Title: Improvements in and relating to anti-creepers for railway rails
IPC: E01B13/02
Filed: 1924-02-04
Abstract: 219,600. Wilson, W. G. Feb. 4, 1924. Creeping of rails, preventing. -Creep checks 12 have railengaging jaws 13, 14 with arcuate vertical walls 20 and upper, side, and lower serrations 22, 21, 23 engaging the rail base. An arm 16 terminates in an abutment 17 having a socket 18 in which is secured a spring 19 which engages the sleeper.
Patent GB-1423321-A (GB)
Title: Method and apparatus for producing isolated laser pulses having a fast rise time
IPC: H01S3/11
Filed: 1974-01-22
Abstract: 1423321 Lasers UNITED STATES ATOMIC ENERGY COMMISSION 22 Jan 1974 [9 Feb 1973] 2999/74 Heading H1C To terminate prematurely a giant pulse from an optically pumped Q-switched laser, a secondary laser output directed by mirrors 28, 30 triggers a spark gap 38 to de-energise an electro-optical modulator (EOM) 24, the consequential change of polarisation conditions within the laser resonator enabling the main laser output to be obtained by way of a polarising element 22. In both arrangements the resonator includes two polarisers 20, 22, which are crossed to suppress stimulated emission build-up in Fig. 1 and are arranged in Fig. 5 such that multiple reflections between mirrors 14, 42 can normally occur. The cycle of operations is started by energising the EOM. As applied to the Q- switched laser, Fig. 1, the secondary output becomes effective to trigger the spark gap only when the EOM cell voltage effectively uncrosses the polarisers and causes a giant pulse to be emitted. In the case of the laser of Fig. 5 the spark gap is triggered when the build-up of laser oscillation exceeds a finite threshold and causes the polarisers 20, 22 to become effectively crossed.
Patent GB-691764-A (GB)
Title: Improvements in and relating to footwear having cushioned soles
IPC: A43B13/18
Filed: 1951-02-08
Abstract: 691,764. Rubber soled footwear. LEMM H. Feb. 8, 1951 [Feb. 10, 1950], No. 3113/51. Class 17 (ii). A rubber edging 3 extends between a thin wearing sole of rubber and the upper 4 of a house shoe, slipper, sports shoe &c. around a cushion 2 of felt, or foam-, sponge-, moss-, or cellular rubber. The parts may be bound together by vulcanization. The edging may be of solid rubber into a groove 7 in the upper face of which the united edges of upper and inner sole may be pushed before vulcanizing. Alternatively, the edging may be the form of a rubber tube or a channel, open towards the inner part of the sole and filled with, preferably, inflated sponge &c. rubber. In manufacture, the edging in uncured condition is assembled in a mould with the other parts to be vulcanised together and the cushion sole is subjected to mechanical compression during closing of the mould. Vulcanisation occurs preferably at 130‹-140‹ C.
Patent GB-555917-A (GB)
Title: Improvements in and relating to electrical voltage regulating systems
IPC: H02P9/20
Filed: 1942-03-10
Abstract: 555,917. Automatic control systems for dynamoelectric machines. BRITISH THOMSON-HOUSTON CO., Ltd. March 10, 1942, No. 3126. Convention date, March 12, 1941. [Class 38 (iv)] Voltage.-The field coil 3 of an alternator 1 is associated with a Wheatstone bridge which is unbalanced when the action of the regulator 7 changes the exciting currents. The inductive voltage across the coil 3 is thereby caused to react upon the regulator to prevent hunting. An auxiliary winding 16 on the regulator may be connected across the points 19, 20 of the bridge, or these points may be connected in series with the regulator coil 12.
Patent GB-714418-A (GB)
Title: Improvements in or relating to methods and devices for the separation of various particles constituting a sized ore or a mixture
IPC: B07B13/10
Filed: 1951-02-09
Abstract: 714,418. Separating solid materials. DESPUJOLS, P. Feb. 9, 1951 [Feb. 24, 1950], No. 3168/51 Class 117 A mixture of particles of the same size but different specific gravities, or of the same specific gravity but different size, is separated according to specific gravity or size respectively  by passing the particles over an inclined reciprocating table 1 provided with a plurality of separate surface projections 2 mounted in rows so as to allow the particles to spread across and along the table, the projections 2 serving as obstacles from which the lighter particles rebound and move up the inclined table whilst the heavier particles gravitate toward the lower end of the table. A table 1. tilted slightly downwardly from its end 5 to its end 6, is reciprocated transversely in the direction of the arrow f. triangular section prismatic projections 2 being arranged in a series of parallel rows and each having their lower side 3 parallel to the direction of reciprocation so that the other two sides of each projection tend to deflect colliding particles into the adjacent upstream path. The table, which with the projections may be of any other suitable shape, may be reciprocated by an out of balance motor or an eccentric mechanism.
Patent GB-432641-A (GB)
Title: A new or improved method of and means for maintaining pressure in liquid-containing vessels such as are used for the storage of beer
IPC: B67D1/04
Filed: 1934-01-31
Abstract: 432,641. Delivering liquids by gas pressure. HEPWORTH, F., Summerfield, Waterloo Road, South Yardley, Birmingham. Jan. 31, 1934, No. 3214. [Class 102 (ii)] In apparatus for dispensing beer, &c. the beer is raised from the barrel 1 to the tap 3 by the pressure of the gas given off by the beer. A fitting 4 comprises a discharge pipe 2 and an outer tube 5 connected by a pipe 6 to a header 12. The latter is connected by a pipe 17 to a chamber 18 enclosing a bellows 8, which is connected by a pipe 10 to an elevated water tank 11. The gaseous pressure is maintained by the head of water and increases as the beer is drawn off, owing to the downward movement of the bellows. The header 12 is provided with a pressure gauge 13, a blow-off cock 14, a drain cock 15 and a pipe 16. for the supply of compressed gas. The Provisional Specification states that the gas pressure may be maintained by a loaded piston or bellows.
Patent GB-432962-A (GB)
Title: Improvements in miners' safety lamps
IPC: F21L23/00
Filed: 1934-01-31
Abstract: 432,962. Wick burners. HAIL WOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. Jan. 31, 1934, No. 3232. [Class 75 (i)] The wick tube T of a miner's safety lamp is surrounded by an outer tube A, Figs. 2 and 3, which is formed at its upper end with lips A<1> directing air entering the space between the tubes on to the flame. The tube A may be formed with air admission apertures A<2> and with a slot allowing the passage of the wick operating pin L. The edges of the apertures A<2> may be formed with air-directing lips or skirts A<3>, A<6>. The tube A may rest on a ledge on the wick tube T or be mounted on an adjusting screw S. The burner dome D may be permanently attached to the tube A which may be made in two parts, one sliding on the other. Figs. 5 and 6 show a modification in which a collar A on the wick tube carries a fitting Ax having inwardly turned upper edges and surrounding three sides of the wick tube. Air enters the fitting through a slot A<9> and past wings A<10> at the sides. The upper edge of the fitting and the wick tube may be inclined.
Patent GB-797209-A (GB)
Title: Improved mattresses, cushions, upholstery, heat and sound insulating coverings and the like
Inventor: HACKLAENDER KARL HERMANN
IPC: A47C27/14
Filed: 1955-02-03
Abstract: 797,209. Wall &c. linings. AGRICOLA REG. TRUST. Jan. 24, 1956 [Feb. 3, 1955], No. 3238/55. Class 20(4) [Also in Group XIV]  Heat and sound insulating linings for walls &c. are constructed from a sheet of expanded polyurethane foam which is compressed between plates and is then Welded or stitched around the edge to retain the reduced thickness so that when pressure is released the material adjacent the intended area of contact with the load is under tension in a direction transverse to the loading direction while material remote from said area is under compression transversely to the load direction. The wall covering may consist of a single sheet of material, a sandwich of materials of different resistances to tension or compression, or a sandwich of which the inner layer consists of loose granules, flakes, chips or the like or such material bound together by adhesive.
Patent GB-1527302-A (GB)
Title: Method for separating constituents of a gas mixture
IPC: B01D53/04
Filed: 1976-01-28
Abstract: 1527302 Separating gases SOC NATIONALE ELF AQUITAINE 28 Jan 1976 [13 Feb 1975] 03275/76 Headings B1H and B1L [Also in Division C5] A gas mixture is injected into a column swept by a continuous stream of inert carrier gas and containing a solid absorbent for a constituent of the mixture until the absorbent is saturated with that constituent and subsequently, while sweeping with the carrier gas is continued, small quantities of the gas mixture are injected periodically into the column in an amount for each injection less than 40% by weight of the quantity injected in the first step, to provide successively at the outlet a fraction enriched in the non-adsorbed constituent and a fraction comprising purified adsorbed constituent. Each injection may last for I to 120 seconds in a cycle lasting 10 to 800 seconds. Temperatures may range from 20 to 500C and pressures from 1 to 100 bar. The process is applied to the separation of n-paraffin-isoparaffin mixtures. Specified absorbents are activated carbon, alumina, silica gel and natural and synthetic zeolites.
Patent GB-321367-A (GB)
Title: Improvements in packages for razor blades
IPC: B65D83/10
Filed: 1929-01-31
Abstract: 321,367. Kylberg, F. Jan. 31, 1929. Packing razor blades.-Packages for channelled razor blades are formed with parts co-operating with the channels in such manner as to protect the cutting edges and preferably to allow of withdrawal of the blades only in a direction parallel to the edges. One form consists of a clip of elastic sheet metal or similar material bent as in Figs. 2 and 3 to form a channel.8 corresponding with the ridges on the blades and having spring portions 11 to retain the blades. A second form consists of two tray shaped portions integrally connected by a springy end part 10. Openings 16 are provided to facilitate removal of the blades.