baber/WOPTO huggingface dataset:
Patent GB-1405077-A (GB)
Title: Process for recovering thermal energy in an extractive distillation process
IPC: C07C7/08
Filed: 1973-02-22
Abstract: 1405077 Extractive distillation METALLGESELLSCHAFT AG 22 Feb 1973 [22 Feb 1972] 8856/73 Heading BIB [Also in Division C5] In the extractive distillation of a feed 18 in a plate column 13 the solvent-extract mixture is withdrawn from the lowermost plate 4 of the column and heated by indirect heat exchange at 1 with hot liquid regenerated solvent 14 which has been separated from the solvent in a separate solvent stripping column 16 and the heated solvent-extract mixture is subsequently fed to the reboiler 12 of the extractive distillation column. In Examples 1 and 2 benzene is separated from thermally cracked gasoline using N methylpyrrolidone as the extractive solvent. In Example 3 a mixture comprising benzene, toluene, xylene, non- aromatic hydrocarbons and butyrolactone and which has been obtained in a liquid-liquid extraction process is extractively distilled to provide an overhead comprising the benzene and non-aromatic components, which is recycled to the liquid-liquid extraction, and a toluene-xylene-butyrolactone extract, which is separated in a solvent stripping column,
Patent GB-655111-A (GB)
Title: Improvements in and relating to resistance units for electric circuit breakers
IPC: H01H33/16
Filed: 1948-03-25
Abstract: 655,111. Wire resistances ; casings, enclosures and mountings for resistances. BRITISH THOMSON-HOUSTON CO., Ltd. March 25, 1948, No. 8857. Convention date, March 26, 1947. [Class 37] [Also in Group XXXVII] A shunt resistor unit 9 shown as applied to the multi-break oil-blast circuit breaker disclosed in Specification 644,392, [Group XXXVII], is of thin part-cylindrical form, thereby possessing small volume, and permitting it to be secured to the cylindrical interrupters 2 without obstructing the blast ports 13. Each resistor unit 9 comprises an arcuate core 19 of strong hot-moulded insulating material and formed on both sides with parallel grooves 22, the grooves on opposite sides being relatively staggered. The resistance wire 21, of, say, 0.03 inch diameter, is first coiled into a helical spring about “ inch diameter and then one end 21a is clamped between a washer 24 and flanged tubular terminal 23 in the top end of the core 19, Fig. 6, the coiled wire then being wound round the core 19 and similarly secured at the bottom end by a tubular terminal 27. During this winding the wire beds into the grooves on the convex side of the core 19 and the portions which stretch straight across on the concave side are brought opposite their respective grooves by opening up one turn of the wire when passing from one side of the core to the other. This assembly may now be applied to an interrupter 2, the cylindrical wall of which will stretch the straight resistance portions and press them into their appointed grooves. As shown, however, the wound core 19 is sandwiched between curved insulating members 18, 20, the parts 18, 19, 20 being held together by shouldered fibre spacers 28 and screws 29. A row of spacers 28 and screws 29 are provided at each end of the resistor unit, and for long units there is an additional central row, in which case a gap 26 is provided in the winding 21 and the grooves 22 are preferably omitted from the corresponding portion of the core 19. The unit 9 is mounted on the interrupter 2 by two pairs of screws 30, 31, accessible through holes 35 in the member 20. The screws 30 extend through the tubular terminals 23, 27 and also serve to connect the resistor to metal parts 17, 16 which are connected respectively to the uppermost and lowermost contacts in the interrupter. The screws 31 extend through similar tubular members 32. Insulating spacers 33 secured to the core 19 by the tubular terminals or members such as 23 extend through holes 34 in the member 18 and thus transfer the mounting pressure to the core 19. The wire 21 is completely protected by bending the edges of the member 20, and may be insulated by filling the unit 9 with a thermosetting compound, this arrangement being suitable .for an air-blast interrupter. Specification 3561/44 (as open to inspection under Sect. 91), also is referred to.
Patent GB-403257-A (GB)
Title: Improvements in colour photography
IPC: G03C7/26
Filed: 1933-03-23
Abstract: 403,257. Colour photography; developing. FINNIGAN, W., 1, Little Essex Street, Strand, London, and RODGERS, R. A., 24B, Prince Albert Street, Brighton. March 23, 1933, No. 8863. [Class 98 (ii).] In the production of a bipack for making component colour-record negatives, comprising an ordinary blue-sensitive plate or film which may be dyed a reddish tint, superimposed on a panchromatic plate or film, the rear element is rendered panchromatic by treatment with a solution, in alcohol and water, containing dicyanine, homocol, pinaverdol, pinacyanol and ammonia. After exposure, the plates or films are developed, either in the dark or after desensitising, preferably with a pyrocatechin developer containing also an alkaline sulphite and a phosphate. Formulae for the panchromatising and developing baths are given in the Specification.
Patent GB-568700-A (GB)
Title: Improvements in and relating to destination indicators
IPC: B61D41/00
Filed: 1943-06-03
Abstract: 568,700. Indicators. GRINDROD, A. June 3, 1943, No. 8898. [Class 3 (i)] A non-endless display band carrying destination indications has means whereby it can be brought to the correct indication without direct inspection. The rollers N are geared at M to a vertical spindle h, the lower part of which is screw-threaded. On the screw rides a nut J fitted with a projecting pin P which moves up and down a slot O which prevents the nut J from rotating. Two pointer-carrying blocks f, f are slidable each on a vertical rod e, e, and can 'be positioned by handles c, c so that pins L projecting horizontally from the blocks f, f can be brought into the path of the pin P to limit the travel of the latter in the up or down direction when the spindle h is turned by a handle d, and thus locate the display band. Each handle c, c has a side projection g which can enter one of a plurality of slots arranged one above the other, each slot corresponding to a destination on a column displayed to the operator and indicated by a pointer fixed to the block f. Thus, by turning one of the handles c, the projection can be removed from its slot, the handle being then axially movable till the now upstanding pointer comes opposite any required indication, when the handle is turned back through about 90 degrees, locking the projection g in the requisite slot and bringing the pin L into the path of the pin P and the pointer back into the plane of the display column. The other handle c is operated for the return journey.
Patent GB-900859-A (GB)
Title: Improvements relating to the production of steel ingots
Inventor: WILCOCK RONALD
IPC: B22D7/00
Filed: 1960-03-14
Abstract: 900,859. Casting processes. FOX & CO. Ltd., SAMUEL. March 13, 1961 [March 14, 1960], No. 8919/60. Class 83 (1). When casting steel ingots, a synthetic solid glass-like slag is present in, or introduced into the mould, the slag having a viscosity of less than 1000 poises at 900‹ C., 100 poises at 1000 ‹ C. and 50 poises at 1100 ‹ C., and a surface tension less than 250 dynes/cm. when molten. A number of examples of suitable slags are specified. The slag may be added by suspending two or more paper bags in the mould, added during pouring, or placed on the mould bottom before pouring. Specification 717,413 and U.S.A. Specification 2,869,197 are referred to.
Patent GB-123249-A (GB)
Title: Improvements in Incandescent Electric Lamps.
IPC: H01K1/16
Filed: 1918-05-30
Abstract: 123,249. Osram - Robertson Lamp Works and Sack, T. J. May 30, 1918. Filaments, attaching; supports for. - A coiled filament is looped over spring arms c formed with hooks f and attached to the leading-in strips c. The arms c are of tungsten, molybdenum, &c. wire of about the same gauge as the filament so as to prevent loss of heat by conduction, the distance between the arms being such as to cause them to bend slightly when the filament is attached. The hooked support allows of angular movement of the filament due to temperature changes. The lamp bulb may be filled with gas such as argon.
Patent GB-673437-A (GB)
Title: Collapsible container
IPC: A45C7/00
Filed: 1950-04-13
Abstract: 673,437. Portmantaux &c. CLARKT, W. J. P. April 13, 1950, No. 9087/50. Class 133. A brief case or other container has a base 1 and lid 2 of flexible material stiffened by members in pockets 3 and a side wall 4 of which a portion 4d is non- detachably connected to the base 1 and lid 2, the remainder, forming the sides 4a, 4b, 4c, being connected to the base by a single sliding clasp fastener having strips 5a, 5b, and slide 5c and which also connects the sides 4b and 4d. The lid is secured to the sides by the action of a sliding clasp fastener having a slider 8c and a handle 9 is attached to the side 4c. The lid may be omitted to form a collapsable open tray.
Patent GB-1013229-A (GB)
Title: A process for the manufacture of benzodiazepine derivatives
IPC: A61K31/55
Filed: 1963-03-07
Abstract: The invention comprises compounds of the general formula <FORM:1013229/C2/1> (wherein R1 represents an alkanoyl, aralkanoyl, aroyl or alkyl group, R2 represents a halogen atom or trifluoromethyl group, R3 represents a halogen atom or an alkyl, alkylthio, nitro or trifluoromethyl group, R4 represents an alkyl or alkenyl group, and the broken lines denote optional substituents) and acid addition salts thereof, pharmaceutical preparations containing them, and their preparation by subjecting a compound of the formula <FORM:1013229/C2/2> to acylation with an aliphatic, araliphatic or aromatic carboxylic acid anhydride, sulphide or halide, optionally followed by (a) one or both of the steps of hydrolysis and reaction with an alkanol (consecutively or simultaneously when both steps are required), (b) introduction of the R4 group at any stage when not present in the starting material, and/or (c) acid addition salt formation at any suitable stage.  The compounds of the invention are sedatives, anticonvulsants and muscle relaxants, and may be administered enterally or parenterally in the form of pharmaceutical preparations (e.g. tablets, dragees, suppositories, capsules, solutions, emulsions and suspensions) containing them, with or without other (unspecified) active ingredients, in association with a carrier. Specification 972,968 is referred to.
Patent GB-100797-A (GB)
IPC: F01D15/02
Filed: 1916-06-28
Abstract: 100,797. Westinghouse Machine Co., (Assignees of Schmidt, H. F.). June 30, 1915, [Convention date]. Motor power plant.-Relates to marine turbine installations wherein a number of propeller shafts 8, 10 are driven by a plant comprising a highpressure turbine 4 the exhaust from which is led, according to the power required, to any or all of a number of low-pressure turbines 5, 6, 7 working in parallel, the turbines 5, 6 being connected to a condenser 12, and the turbine 7 to a condenser 13, one condenser, according to the invention, being of materially greater capacity than the other. Reduction gearing 9, 11 is provided comprising a gear-wheel on each shaft 8, 10 meshing with pinions on shafts of the turbine sections 4, 5, 6, 7, so that the shaft 8 may be driven by the highpressure section 4 and low-pressure section 5 jointly or separately, and the shaft 10 may be driven by the two low-pressure sections 6, 7 jointly or separately. The inoperative sections may be disconnected by clutches, or if run idle, the air-pump of the idle condenser may be operated to maintain a high vacuum. Ahead and astern turbine elements are provided in each section 4, 5, 6, 7, the astern turbines having connexions similar to the ahead turbines. The highpressure section 4 has a partial or variable admission ahead turbine 14 and a partial or variable admission astern turbine 15, and each low-pressure section 5, 6, 7 has a full peripheral admission ahead turbine 31 and a partial or variable admission astern turbine 33. The nozzles 17 of the turbine 14 are controlled by valves 17<a>. Highpressure steam may be delivered directly to the low-pressure sections by valves 44 for ahead driving and by inlets 45 for astern driving. The transmission gearings 9, 11 may be dispensed with, and each turbine section directly connected to the propeller shaft; or electric transmission apparatus may be employed.
Patent GB-1421787-A (GB)
Title: Substituted imidazoles
IPC: C07D405/04
Filed: 1973-02-23
Abstract: 1421787 Imidazole derivatives BEECHAM GROUP Ltd 12 Dec 1973 [1 Dec 1972 23 Feb 1973] 55506/72 and 9134/73 Heading C2C Novel imidazole derivatives of the formula wherein R 1  is acetyl or propionyl and R 2  is C 1-12  alkyl, C 2-12  alkenyl, C 3-6  cycloalkyl, C 5-6  cycloalkenyl or aromatic groups containing 1 or 2 nitrogen, sulphur or oxygen atoms, are prepared by acylating the corresponding compounds of the above formula in which R 1  is H. Pharmaceutical compositions suitable for oral or parenteral administration, contain the above novel compounds together with pharmaceutically acceptable carriers. The compounds possess anti-inflammatory activity.
Patent GB-609921-A (GB)
Title: Improved method of and apparatus for use in heat treating glass
IPC: C03B29/02
Filed: 1946-03-25
Abstract: 609,921. Heat-treating glass. BLUE RIDGE GLASS CORPORATION. March 25, 1946, No. 9166. Convention date, March 27, 1945. [Class 56] To reduce the risk of breakage of glass on heating during a heat-treatment process or preparatory to a metallising process, the margins of the glass are heated more rapidly than the central portions, whereby compressive strain instead of tension is set up in the margins. For this purpose there is provided in the furnace D a metal frame A of which the outside dimension is greater than that of the glass to be heated and the inside dimension is less than that of the glass. The glass B is placed on the frame after the latter has attained furnace temperature and, if the glass is to be metallised it is removed with the frame and is subjected to the metallising process and cooling while still remaining thereon.
Patent GB-231905-A (GB)
Title: Emergency braking system for electric vehicles
IPC: B60L3/02
Filed: 1925-04-06
Abstract: 231,905. Maschinenfabrik Oerlikon. April 5, 1924, [Convention date]. Electric braking.-Control systems for the motors of electric vehicles are provided with emergency switches operated by the driver or passengers, whereby the normal motor circuits shown in Figs. 2 and 3 for series and parallel running can be converted into electric braking circuits show in Figs. 5 and 5a. The braking effect is obtained in part rheostatically, one or both motors being closed on a braking resistance BW, and in part through track brakes Sch energized by the motors running as generators or by the line current, forward and backward braking being obtained with the same connections. The emergency switches may be combined with a " dead man's handle."
Patent GB-981534-A (GB)
Title: Improvements in and relating to a process for the preparation of cyanamide
IPC: C25B1/24
Filed: 1962-03-09
Abstract: Cyanamide is produced from cyanogen chloride or bromide and ammonia at a temperature at which the reaction proceeds in solution in an inert solvent for cyanogen halide and cyanamide, in which ammonium halide is soluble not in excess of 5 g. per litre at reaction temperature, and which inert solvent is an aliphatic ester, a sulphone, an aliphatic nitrile, a polyoxyalkylene ether having at least one oxygen per five carbon atoms, or a cyclic ether having at least one ether oxygen per five carbon atoms or dimethyl formamide or a mixture of any of these. The use of five-membered ring sulphones is preferred and especially C4 to C12 sulpholanes are desirable.  The Specification lists numerous solvents suitable for operation, and gives a large number of examples.  The cyanamide obtained in solution is separated from the precipitated ammonium halide and may be directly converted to melamine (see Division C2) by heating in the presence of ammonia.ALSO:Cyanamide produced in an inert organic solution by a novel process (see Division C1) may be converted to melamine by heating in the presence of ammonia.  A small amount of ammeline identified by infra red also is produced.
Patent GB-636603-A (GB)
Title: The preparation of acylated amines
Filed: 1947-04-05
Abstract: Acylamides are prepared by reacting an azo-compound or a hydrazone with a mixture of a metal reducing agent and an acylating agent.  In particular, compounds of the formula (Y)2CH or HCOR, where R is an alkyl radical and Y is an activating radical such as a carboxylic ester, cyano, acyl or nitro radical are prepared by reacting an azo-compound or a hydrazone of the formula (Y)2CH-N=N-R1 or (Y)2 C=N-NHR1, where R1 is aryl with a mixture of a metal reducing agent such as zinc, iron, magnesium or aluminium and an acylating agent such as an aliphatic organic acid anhydride or a mixture thereof with an organic acid, e.g. acetic acid and acetic anhydride or propionic acid and propionic anhydride.  The term "activating agent" means a radical capable of activating a methylene substituent in the alpha position with respect to the said radical.  The azo compounds or hydrazones of the formula given are prepared by adding a solution of an aryl diazonium salt to a cold aqueous alkaline solution of a compound of the formula Y-CH2-Y where -CH2- is an active methylene group and Y is an activating radical.  Compounds which may be used as starting materials include methyl and ethyl-b -keto-butyrate, benzyl-b -keto-valeriate, ethyl-b -keto-butyronitrile, benzyl-b -keto-capronitrile, malonodinitrile, diethyl malonate dimethyl malonate, diphenyl malonate, ethyl-butyl- and p  tolyl-a -cyano-acetate, acetyl acetone and 3 : 5-diketo-octane. In examples, (1) ethyl-a -(phenylazo)-b -keto-butyrate is reacted with a mixture of zinc dust, glacial acetic acid and acetic anhydride to give ethyl-a -acetamido-b -keto butyrate; (2) 3-(phenyl-azo)-2 : 4-diketo-pentane is treated as in (1) to give a -acetamido-a -acetyl acetone; (3) ethyl-a -(phenyl azo)-a -cyano-acetate is treated as in (1) to give ethyl-a -acetamido-a -cyanoacetate and (4) azo benzene is treated as in (1) to give acetanilide.
Patent GB-626769-A (GB)
Title: Improvements in and relating to hand barrows and the like
IPC: B62B1/14
Filed: 1947-04-08
Abstract: 626,769. Wheelbarrows ; rest bars. BRITISH HOIST & CRANE CO., Ltd., and EVANS, P. N. April 8, 1947, No. 9308. [Classes 108 (i) and 108 (ii)] A hand barrow of the kind used for carrying bricks is provided with a ground-engaging support 20 on each side of the central wheel 17 to provide lateral support while the barrow is being turned from a vertical position to the horizontal position in which it is wheeled. A steel frame 10, 11, 13 is joined at one end by a handle 12, and carries a metal facing 14 with projecting tines 15. Each support 20 consists of radial members 20b secured to the axle, joined by an arcuate portion 20a. A U- shaped foot-rest 21 is pivoted to the frame at 22 and connected to the supports 20 by links 23. In use, the tines 15 are inserted in the stillage and the foot-rest is pressed down to rotate the supports to the position shown in Fig. 1. The handle is pulled towards the user, during which sideways tipping is prevented by the supports 20 on which the barrow rolls until the supports are disengaged from the ground, when they are drawn back by spring 24. Several modifications are described.
Patent GB-1214421-A (GB)
Title: Improvements in ceilings
IPC: E04B9/30
Filed: 1969-02-20
Abstract: 1,214,421. False ceilings. BARRACUDAVERKEN AB. 20 Feb., 1969 [20 Feb., 1968], No. 9313/69. Addition to 1,129,635. Heading E1W. In a false ceiling as described in parent Specification the thicker flange of the U-shaped bonder tapers towards a waist portion 26 adjacent to the base of the U, and the base 27 has a triangular cross section and tapers away from the flanges.
Patent GB-526959-A (GB)
Title: Improvements in or relating to electric cables, cords and the like
IPC: C08F253/00
Filed: 1939-03-24
Abstract: 526,959. Rubber compositions. STANDARD TELEPHONES & CABLES, Ltd., and MORLEY, J. F. March 24, 1939, No. 9318. [Class 70] [Also in Groups XXXVI and IV] A method of preparing insulating material suitable for a high frequency coaxial or a screened-pair cable comprises adding rubber to monomeric styrene, polymerizing the styrene, and then mixing with the product a softener containing polyisobutylene. The material is made by adding 20 parts of rubber in small pieces to 80 parts by weight of styrene and polymerizing the styrene. To this is added a softener made by milling together 80 parts of polyisobututylene, 40 parts of pale crepe rubber, and 20 parts of paraffin wax. The proportions are 100 parts of the polystyrene-rubber mixture and between 20 and 60 parts of the softener, 40 parts of the latter being chosen if the sheaths and ribs are formed by a single extrusion. Alternatively the inner sheath and ribs may contain 32 parts, and the separately-extruded outer sheath 45 parts of softener. If a cheaper material is desired, 40 parts of talc may be added in each case. Specification 507,323, [Group IV] is referred to.
Patent GB-549467-A (GB)
Title: Windshield cleaner
IPC: B60S1/24
Filed: 1941-07-23
Abstract: 549,467. Windscreen wipers. TRICO PRODUCTS CORPORATION. July 23, 3941. No. 9335. Convention date, July 27, 1940 [Class 138 (i)] An oscillating vane motor drives the wipers through an intermediate shaft which is oscillated through 180 degrees to provide slow-down periods at the ends of the strokes. The motor 10, the vane 11 of which oscillates through an angle of less than two right angles, drives the intermediate shaft 15 through gearing 17, 18 so chosen as to effect an 180 degrees oscillation. The shaft is fitted with crank pins 19 connected by links 8 with the gearing for operating the wipers. The links have bent-ends as shown and lie in a common plane.