baber/WOPTO huggingface dataset:
Patent GB-1477999-A (GB)
Title: Method of producing 2-substituted 1,4-benzodiazepine derivatives
IPC: C07D245/06
Filed: 1976-05-10
Abstract: Compounds of the formula I <IMAGE>  and their acid addition compounds, where     R1 is a hydrogen atom or a halogen atom, R2 is a hydrogen atom, a halogen atom or the trifluoromethyl group and   R3 is a hydrogen atom or an alkyl group with 1 to 6 carbon atoms,  are obtained by reacting acyldiamines of the formula IV <IMAGE> with an excess of phosphorus oxychloride such that the reaction remains at the boiling point of the latter throughout its course, removing the unreacted phosphorus oxychloride and the other inorganic constituents from the resulting mixture of the compounds of the general formulae II and III <IMAGE> and subsequently converting the mixture of isomers with alkali metal alkoxides in suitable solvents at elevated temperature into the compounds of the general formula I in which R3 is an alkyl group, or to prepare the compounds of the general formula I in which R3 is a hydrogen atom, reacting the mixture of isomers with alkali metal hydroxides or alkali metal carbonates in suitable solvents at elevated temperature, or reacting the mixture of isomers with alkali metal acetate and subsequently with dilute alkali metal hydroxide solution. The compounds have pharmacological activity.
Patent GB-144510-A (GB)
Title: Improvements in or relating to bag fasteners
IPC: B65D77/18
Filed: 1919-08-05
Abstract: 144,510. Almedia, J. M. d', and Silva, J. E. Aug. 5, 1919. Portable locks for bags.-A bag fastener comprises two semicircular arms 5, 8, pivoted together at 9 and adapted to encircle the neck of the bag 11, the ann 5 having an integral rod 6 which passes through apertures 12 in the bag and which is provided with a reduced end 7 to take into an aperture 10 in the arm 8 when the arms are closed. For locking the device on the bag, the free end of the arm 8 is formed with teeth 21 adapted to be engaged by a spring-pressed pivoted pawl 19 mounted within the lock 17 on the other arm 5, provided with a keyhole 22 for the reception of a key for unlocking. A handle 16 is pivoted to the arm 5.
Patent GB-1109675-A (GB)
Title: Heat exchange unit
IPC: F28D7/16
Filed: 1965-05-07
Abstract: 1,109,675. Distillation apparatus. M. W. METTENLEITER, P. BORCHARDT and W. DINDIAL. 7 May, 1965, No. 19334/65. Heading BIB. [Also in Divisions F2 and F4] Distillation apparatus comprises a condenser 10 and an evaporator 12 each having a rigid multi-tube heat exchanger flexibly mounted within a casing 14 and electro-magnetic means for imparting rapid vibrations to the headers 26 and 28 of the heat exchangers to prevent sediment, scale or air bubbles from settling or forming on the heat exchange surfaces. The flexible mountings for the heat exchanger comprise a bellows unit 30 and 32 connected between the respective headers 26 and 28 and the ends of the casing 14. As shown, a liquid to be distilled is preheated as it passes through the condenser 10 in which it serves as a coolant for condensing the vapour in the tubes 24. On reaching the evaporator 12 via conduit 74 and inlet 76 the liquid is evaporated by the heat of combustion gases flowing through the tubes 48 from the header 50 to the header 52 and outlet 84. The vapour passes to the condenser tubes 24 via outlet 78. conduit 80 and inlet 20 to be condensed 'by fresh liquid entering the condenser 10 at inlet 70. The distillate leaves the condenser 10 through an outlet 22. Outlets 112 and 114 are provided to enable sediments shaken from the heat exchanger to be removed from the casing.
Patent GB-494191-A (GB)
Title: Improvements in or relating to magnetic cores for electrical measuring instruments
IPC: G01R11/36
Filed: 1937-07-13
Abstract: 494,191. Supply meters. ENGLISH ELECTRIC CO., Ltd., and TILSTONE, G. July 13, 1937, No. 19379, [Class 37] A composite magnetic core comprises laminations formed with gapped portions so stacked as to provide a plurality of separate local zones of high reluctance and at least one additional stiffening lamination having either no air gap or only a partial gap which does not pass completely through the limb of the lamination. Laminations 1, Fig. 4, having asymmetrically disposed gaps 1a extending across their full width are stacked so as to provide staggered air gaps in the core, as described in Specification 406,486. Stiffening laminations 2 without gaps are placed at the top and bottom of the stack to stiffen the core against distortion, the whole being secured together by tubular rivets or other fastening means (not shown). The stiffening laminations 2 may alternatively be formed with partial gaps 2a, either not extending to either edge as shown in Fig. 5 or extending from the inner edge partly across the limb as shown in Fig. 6. Stiffening laminations may also be placed in intermediate positions in the stack.
Patent GB-478305-A (GB)
Title: Improvements in rubber, rubber-like substances or artificial resins
IPC: C08K11/00
Filed: 1936-07-13
Abstract: Rubber, polymerization products of olefines and synthetic resins are mixed with either the extraction products of coal made by treating coal with a solvent under pressure, or high boiling fractions of hydrogenation products of coal.  Synthetic resins such as polystyrene, polymethacrylic acid esters, polyvinyl esters or phenol formaldehyde condensation products are treated to form soft to hard rubber-like products.  In examples, (1) to a mixture of smoked rubber sheet, zinc oxide, stearic acid, sulphur, and diphenylguanidine, there is added an extract, obtained by treating coal under elevated temperature and pressure with tetrahydronaphthalene, which acts as plasticizer or filler.  The mixture is then vulcanized by heating at 127 DEG  C. for \ba1/2\be hour to form a rubber composition having improved elastic properties.  The coal extract may be replaced by a filtered hydrogenation residue of coal boiling about 300 DEG  C. Example (3) polymerized isobutylene obtained by the process described in Specification 401,297 is intimately mixed with a coal extract as in example 1.  A product similar in properties to rubber is obtained.ALSO:Rubber is mixed with either the extraction products of coal made by treating coal with a solvent under pressure, or high boiling fractions of hydrogenation products of coal.  In examples, to a mixture of smoked rubber sheet, zinc oxide, stearic acid, sulphur, and diphenyl guanidine, there is added an extract obtained by heating coal under pressure with tetrahydronaphthalene, which acts as a plasticizer or filler. The mixture is then vulcanized by heating at 127 DEG  C. for 1/2 hour to form a rubber composition having improved elastic properties.  The coal extract may be replaced by a filtered hydrogenation residue of coal boiling above 300 DEG  C.
Patent GB-596541-A (GB)
Title: Improvements in rotary sliding vane internal combustion engines
IPC: F02B53/00
Filed: 1945-07-30
Abstract: 596,541. Rotary internal-combustion engines. BAXTER, E. G. July 30, 1945, No. 19430. [Class 110 (ii)] , A rotor 9 has an odd number of radially, or tangentially, sliding vanes 8, and radial slots, acting as admission and exhaust ducts for the gases, which co-operate with arcuate inlet and outlet ports in rotary valves, 10, 11 moving at a slightly different speed from that of the.rotor. The valves are driven through gearing 13, 14, 16, 17, from the main shaft 3. When radial vanes are used, they are provided with legs co-acting with cams 7 on the stator parts 6. End packing devices may be used on the vanes. A sparking-plug or compression-ignition may be used. A water jacket or fins may be used for cooling the engine
Patent GB-882130-A (GB)
Title: Halogenated silanes and siloxanes
IPC: C07F7/18
Filed: 1959-06-08
Abstract: The invention comprises fluoro-chlorosilanes of the formula CF2ClCH2CH2Si(R)nX3-n and siloxanes of unit formula <FORM:0882130/IV (a)/1> where X is halogen or alkoxy, R is a monovalent hydrocarbon radical and n is 0, 1 or 2.  When X is halogen, the silanes can be prepared by (1) where R is a saturated aliphatic or an aromatic hydrocarbon radical, reacting 3-chloro-3,3-difluoropropene-1 with a silane RnSiHX3-n in the presence of a catalyst such as an organic peroxide, chloroplatinic acid or platinum on charcoal; (2) where some R1's are hydrogen, reacting the difluoropropene with a silane containing more than one hydrogen, or reducing the products of (1) with lithium aluminium hydride; (3) where R is unsaturated aliphatic, reacting CF2ClCH2CH2SiX3 with the corresponding Grignard reagent. When X is alkoxy, the silanes are prepared by reacting the halo-derivatives with a monohydric alcohol.  The siloxanes are prepared by conventional hydrolysis and include copolymers.  Examples of the radical R are methyl, ethyl, isobutyl, octadecyl, vinyl, allyl, hexenyl, octadecenyl, cyclopentyl, cyclohexyl, cyclohexenyl, phenyl, tolyl, naphthyl, anthracyl, benzyl and b -phenylethyl. Specified alkoxy groups are methoxy, isopropoxy and octadecyloxy. Uses: Water-repellents, dielectric fluids, lubricants.
Patent GB-475434-A (GB)
Title: Improvements in means for cooling dynamo-electric machines
IPC: H02K9/16
Filed: 1936-07-14
Abstract: 475,434. Cooling dynamo-electric machines. MOSSAY, P. A. H., and LAURENCE, SCOTT, & ELECTROMOTORS, Ltd. July 14, 1936, No. 19567. [Class 35] In an enclosed machine wherein the internal air traverses tubes past which external air flows, tubes are provided between the end shields and the stator core or yoke in addition to the openings at the ends of the machine provided for the said external air, and the tubes extending from the end shields conduct external air which flows along the periphery of the stator core or through ducts therein. In the form shown, internal air passes through the tubes 1 past which flows external air driven by the fan 18. A deflector 20 is provided for sending some of the external air through the tubes 16 from which it passes along ducts 15 in the stator core. In a modification, the ducts are not closed but are open to the main cold air duct. In the form shown in Fig. 7, the air supplied through the tubes 16 flows between ribs 30 on the periphery of the stator yoke 29. Specifications 110,269, 119,505, 232,657, [all in Class 35], 365,650*, and 416,990 are referred to.
Patent GB-1330393-A (GB)
Title: Stabilized oil extended rubber compositions
IPC: C08L23/16
Filed: 1971-06-09
Abstract: 1330393 Dihydrazides of naphthalene dicarboxylic acids SUN OIL CO 9 June 1971 [23 June 1970 (3)] 19599/71 Heading C2C [Also in Division C3] Dihydrazides of naphthalene dicarboxylic acids are prepared by reacting the corresponding dimethyl esters with hydrazine hydrate. Examples describe the preparation of the 2,6-, 2,7-, 1,4-, 1,5-, 1,6-, 1,7-, 1,8-, 2,3-, 1,2- and 1,3-dicarboxylic acid dihydrazides.
Patent GB-713388-A (GB)
Title: Improvements in and relating to electric motors
Inventor: LANE ARTHUR CLIVE
IPC: H02K23/18
Filed: 1952-08-05
Abstract: 713,388. Alternating-current commutator motors. BRITISH THOMSONHOUSTON CO., Ltd. June 15, 1953 [Aug. 5, 1952], No. 19671/52. Class 35. The brush-gear of a Schrage motor has two actuators, one controlling the brush separation and the other regulating the position of the brush-gear axis, the combined control means being adapted to select such speed-torque curves as are desired to perform a given cycle of operation either for motoring or generating. As shown, a pilot motor M drives one brush rocker F through pinion A, whilst the other rocker G is driven through helical pinions C and D. Pinion C is fixed directly to a spindle which carries pinion B, and pinion D is free to slide along spindle H which carries pinion E, but is keyed to the spindle so that members D and H rotate together. The drive from motor M to pinion C is irreversible and cannot be transmitted from the pinion C through pinions B, A to the pilot motor. Two thrustors J, K operate by link mechanism L on to the helical pinion D which is able to take up three positions. In the neutral position shown, only one thrustor is excited, and any movement of the pilot motor M moves the brush rockers F, G, in opposite directions. With the pilot motor at rest and with the brush-gear in the neutral position shown, if both thrustors are excited the helical pinion D rises. This axial sliding of the pinion D causes rotation of the spindle H and pinion E, together with a corresponding movement of the brushrocker G. Similarly, if both thrustors are de-energized, the pinion D falls and the rocker G moves in the opposite direction. This movement of the rocker G in one direction or the other about the neutral setting results in forward or backward shift of the brush axis. The Schrage motor may be used for driving a sugar centrifugal, joint operation of brush separation and brush shift producing a required cycle of operation with maximum efficiency. The brush-gear has backward shift for conditions of heavy accelerating torque, and forward shift'under condition of high retarding torque. Specifications 366,686 and 534,430 are referred to.
Patent GB-147761-A (GB)
Title: An apparatus for determining and fixing the capability of reaction of a person to unexpected impressions, whilst at the same time constantly otherwise claiming his attention
IPC: A61B5/16
Filed: 1920-07-08
Abstract: 147,761. Piorkowski, C. May 19, 1916, [Convention date]. Testing physiological functions and mental aptitude.-Relates to apparatus for testing a person's speed of reaction to unexpected impressions whilst his attention is otherwise constantly engaged, particularly for testing vehicle drivers. The apparatus comprises a series of lamps a operated at irregular intervals by means of a motor and constantly engaging the attention, and a series of lamps b of different colour or type irregularly operated by a switch g, which also controls a time-recorder d measuring to a thousandth part of a second. A steering and brake device c similar to those used on vehicles is operated by the person under test immediately thelamps b are operated, and serves to switch off the lamps b and stop the time recorder so that the period of reaction may be determined. Additional lamps e of still other colours are irregularly switched on, but are intended to be ignored by the person under test. In addition to the lamps, stimuli such as a falling hammer, a pistol, or a wire or branch brought into contact with the head, may be employed..
Patent GB-320345-A (GB)
Title: Process for the manufacture of new xanthen dyes and their use
IPC: C09B11/28
Filed: 1928-07-07
Abstract: 320,345. Imperial Chemical Industries, Ltd., Coulthard, A., and Rodd, E. H. July 7, 1928. Xanthene dyes are obtained by condensing 3 :7- tetraalkyl diaminoxanthones with secondary or tertiary aromatic amines having a free p-position to the amino group with the aid of phosphoryl chloride phosphorus chlorides, or carbonyl chloride or other reagent capable of replacing the ketone group by halogen. Basic dyes containing three substituted amino groups are obtained and may be sulphonated to give acid dyes. In examples, 3 : 7-tetramethyl diaminoxanthone is condensed with alpha-ethylnaphthylamine in the presence of phosphoryl chloride. The product dyes tanninmordanted cotton, wool and acetate silk bright magenta shades. The dye obtained from the
Patent GB-809587-A (GB)
Title: Process for improving the hot workability of titanium alloys
IPC: C22F1/18
Filed: 1957-06-24
Abstract: The hot workability of titanium alloys, particularly those containing alpha titanium crystals, e.g. alloys containing over 6 per cent of aluminium, is improved by incorporating upwards of 0.05 per cent of hydrogen in the alloys, e.g. 0.05-1.0 per cent. The hydrogen can be added by melting down the alloy in a hydrogen atmosphere, preferably at superatmospheric pressure.  When using arc melting methods a mixture of inert gas such as argon with 25-50 per cent of hydrogen may be used.  Alternatively a workpiece, after freeing its surface from oxygen, may be heated to about 900 DEG C. in a hydrogen-containing atmosphere, the temperature then being lowered slowly.  After working the hydrogen may be removed by heating to about 1000 DEG C. in a high vacuum.  Examples are given of the treatment of alloys containing 8 per cent of aluminium with 0.061 and 0.505 per cent of hydrogen, 13 per cent of aluminium with 0.05 and 0.25 per cent of hydrogen, 8 per cent of aluminium with 3 per cent of indium and 0.16 per cent of hydrogen, and 10 per cent of aluminium with 1.0 per cent of hydrogen.
Patent GB-743363-A (GB)
Title: Improvements in reciprocating steam engines
IPC: F01L29/04
Filed: 1953-07-17
Abstract: 743,363. Steam engines; valve gear. DRYSDALE & CO., Ltd., and YOUNG, J. Oct. 15, 1954 [July 17, 1953], No. 19859/53. Classes 122(2) and 122(3) A steam engine includes a valve gear actuated solely from the connecting rod 1 and a crankshaft 2 adapted to be turned end-for-end in its bearings so that its driving end may be available as required at either end of the engine. The valve gear is symmetrical about the plane containing the piston rod axis and the crank path circle and comprises a twin rocklever 8 pivotally connected at one end 9 to the connecting rod and at its other end 10 to one end of a twin lever 11 pivotally connected at its other end 12 to a bracket 13. The rock-lever 8 carries a cross-pin 14 pivotally connected to one end of a twin link 15 pivotally connected at its other end to a valve spindle 16 actuating a piston valve 17.
Patent GB-531099-A (GB)
Title: Improvements in or relating to telescopic shock absorbers
IPC: F16F9/088
Filed: 1939-07-07
Abstract: 531,099. Shock-absorbers. RIBBESFORD CO., Ltd., and THORNHILL, P. W. July 7, 1939, No. 19873. [Class 108 (iii)] In telescopic shock-absorbers, for motor vehicles and aircraft landing-gear, of the kind comprising a hollow plunger and cylinder with a resilient medium such as compressed air and oil or like damping fluid, the passage of fluid from the space between the reciprocating parts is controlled by an annular valve mounted in a groove in the piston-head of the plunger cooperating with ports connecting said space and the main working-space of the cylinder. In the form shown in Fig. 1, the plunger 11 has a piston-head 12 with packing-rings 20a, 20b fitting a cylinder 10 the lower end 15 of which is flared and fitted with packing rings 18, 19 secured by a gland-nut 16. The space 22 of the cylinder 10 and a rubber &c. bag 24 secured to the piston-head 12 are filled with oil &c., a restricted passage 21 being provided in the pistonhead. The plunger-space 27 around the bag 24 is inflated through a valve 28. The space 29 between the plunger and cylinder is connected to the cylinder-space 22 by posts 34 in the pistonhead. Fitted in a groove 31 in the latter is a rubber &c. ring 32 which closes the ports 34 in the shortening movements of the device. During the rebound stroke, excess pressure in the space 29 is avoided by the ring 32 being forced from its seat in the bottom of the groove 31. In the modification shown in Fig. 2, a packing-ring 51 in the piston-head acts as a non- return valve controlling communication between the spaces 22, 29 through ports 56. Communication between the cylinder-space 22 and the exterior of the inflated airbag 24 is controlled by an axially-adjustable valve 37 having an axial passage 42 leading to grooves 39, 40, 41 which register with cylinder-ports 44, 45, 46. Fig. 5 shows a further modification in which the plunger is arranged above the cylinder and fitted with a tubular sheath 58. The rubber bag of the previous modifications is replaced by a floating piston 60 against which oil from the space 22 is forced through a tubular stem 35 projecting from the cylinder-head 36. Restricted flow from the space 22 through a port 69 is controlled by an adjustable plug-valve 65. The cylinder 10 is shown fitted with a packing-ring 62 of the kind described in Specification 531,098, [Group XXVI].
Patent GB-201933-A (GB)
Title: Improvements in and relating to electric batteries
IPC: H01M50/147
Filed: 1923-08-03
Abstract: 201,933. Pepper, D. Aug. 7, 1922, [Convention date]. Cells; cases; electrodes supports for electrodes; amalgamating; gas collectors. - A cell having a lead containe A forming an electrode, and a tubular zinc electrode C is sealed with plastic material D, E which interlocks with openings A<1>, C<1> in the electrodes. The material passing through the openings A<1> also unites with a plastic layer I covering the exterior of the cell. The inner surface of the electrode A is covered with lead peroxide B, which is separated from the zinc tube C by the electrolyte J which may be in the form of a jelly. The lower end of the tube C is closed by a plug H which is formed with a gutter H<2> containing amalgam and is extended as shown at H<3> to the peroxide layer B. An opening C<2> in the tube C allows any gas generated to pass into the interior of the tube. In a modification the tube C is made with a closed top which extends through the seal D, the material E forming a lining within the top of the tube. The tube C may be perforated throughout its length to enable the electrolyte to have access to the interior. The Specification as open to inspection under Sect. 91 (3) (a) states that the battery also embodies other features claimed in Specification 217,004. This subject-matter does not appear in the Specification as accepted.
Patent GB-669660-A (GB)
Title: Improvements in or relating to axle mountings for model vehicles
IPC: A63H19/22
Filed: 1949-07-29
Abstract: 669,660. Toy axle mountings. STEDMAN, R. F. Oct. 27, 1950 [July 29, 1949], No. 19967/49. Class 132 (iii). An axle mounting for a model road or rail vehicle is sprung, and in Fig. 5 a casting or stamping 1 forming a rail vehicle axle guard or bracket has limbs 8 which engage grooves in an axle box member 4. A wire V spring 9 has a central loop which engages a stud 11 formed on the back of an imitation spring 16. The arms of the spring 9 bear against lugs 15 when the vehicle is loaded, and a keep 12 is provided at the lower end of the slot 3. The component parts may form a set for assembly.
Patent GB-1006100-A (GB)
Title: Electric fluorescent lamp
IPC: H01J61/72
Filed: 1962-05-24
Abstract: 1,006,100. Fluorescent discharge lamps. WESTINGHOUSE ELECTRIC CORPORATION. May 24, 1962 [June 23, 1961], No. 20057/62. Heading H1D. A fluorescent discharge lamp has an ionizable medium of mercury vapour and a filling gas of neon of a mixture of neon and argon wherein neon constitutes at least 80% of the mixture by volume at a pressure of 0.5 to 2.5 mm. in the cold condition, and has a cool region therein, the envelope having in the cool region a diameter D and length L such that the cool region has a normal operating temperature of 30‹ to 35‹ C. The filling gas can be 100% neon at a pressure of about 2 mm., or 90% neon and 10% argon at a pressure of about 2 mm. The envelope can have a diameter greater than 1.5 inches, and preferably 2# inches and a loading in excess of 16 watts per foot during normal operation. Heat deflecting shields 23 and 24 of nickel are provided.