baber/WOPTO huggingface dataset:
Patent GB-811531-A (GB)
Title: Process for the preparation of enol esters from ketosteroid compounds
IPC: C07J5/00
Filed: 1956-10-19
Abstract: Enol esters of keto-steroids are prepared by esterifying keto-steroids with a carboxylic anhydride in the presence of an acylating catalyst and a ketene.  The ketene may or may not correspond to the carboxylic anhydride used.  Suitable acylating catalysts are hydrochloric, sulphuric, p-toluenesulphonic and perchloric acids, and sodium acetate.  The preferred carboxylic anhydride is acetic anhydride.  Keto-steroid reactants mentioned are 20-keto-steroids such as 3a  - acetoxy - 11,20 - diketo - pregnane, 3b -acetoxy - 5,6 - dichloro - 20 - keto - pregnane, 3a  - acetoxy - 20 - ketopregnane, 3b  - acetoxy-20 - keto - allopregnane, cholestanone, and coprostanone.  In the examples D 9(11),17-3a , 11,20 - triacetoxy - pregnadiene is prepared from 3a -acetoxy-11,20-diketo-pregnane, and D 17(20) - 3b ,20 - diacetoxy - 5,6 - dichloro - pregnene is prepared from 3b -acetoxy-5,6-dichloro-20-ketopregnane.  Enol acetates of cholestanone and coprostanone may be prepared in a similar manner.
Patent GB-520514-A (GB)
Title: Improvements in or relating to socks for footwear
IPC: A43B17/03
Filed: 1939-01-12
Abstract: 520,514. Boot socks. WOODS, J. F. Jan. 12, 1939, No. 31921/38. [Class 17 (ii)] The inflating tube b of a pneumatic boot sock a passes through a hole c in the back of the upper and is then passed under an elastic strap d, or is held in place by any other small attachment.
Patent GB-1173118-A (GB)
Title: Process for the Esterification of Methacrylic Acid
IPC: C07C69/54
Filed: 1968-07-04
Abstract: 1,173,118. Esterification of methacrylic acid. ROHM & HAAS G.m.b.H. 4 July, 1968 [11 July, 1967], No. 31947/68. Heading C2C. Esters of methacrylic acid e.g. methyl, ethyl and n-butyl methacylates are prepared by introducing methacrylic acid and an aliphatic alcohol in a equimolar ratio into a mixture initially comprising methacrylic acid and sulphuric acid and/or sulphonic acid in a propertion of 8 to 30% by weight; calculated as SO 3  content based on the amount of methacrylic acid initially present in said mixture, at a temperature of 70 to 170‹ C. The rate of introduction of the methacrylic acid and the alcohol into the mixture is not more than the rate of formation of the ester of methacrylic acid. The amount of methacrylic acid initially present in the mixture is 50 to 200% by weight of the amount of methacrylic acid introduced per hour into the mixture.
Patent GB-964458-A (GB)
Title: Improvements in or relating to directional acrials
IPC: H01Q13/08
Filed: 1962-08-21
Abstract: 964,458. Aerials. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 21, 1962 [Aug. 23, 1961], No. 32001/62. Heading H4A. A surface aerial comprises a narrow portion 3 to which is connected a strip line or a coaxial feeder, a bent-over portion 2 whose width gradually increases so as to maintain the characteristic impedance of the aerial constant over the operating frequency band and which terminates in a rounded-off portion as shown, or in a plurality of tapering fingers (not shown), so as to provide a reflection-less termination. The aerial is made from sheet metal or from a web of closely spaced wires. If only a single aerial element is provided it is mounted with its narrow end parallel to a conductive plane, for example the earth. Two such aerial elements may be mounted in mirror image symmetry (Figs. 2 and 3, not shown). Reduction of side lobes in the radiation pattern is achieved by the use of dielectric refracting elements. These may be mounted on the ground plane (Fig. 4, not shown), or may take the form of dielectric rods mounted in front of the bentover portion of the aerial and parallel or perpendicular to the ground plane (Figs. 5 and 6, not shown).
Patent GB-266651-A (GB)
Title: A mitre and like clamp
IPC: B25B5/14
Filed: 1926-12-17
Abstract: 266,651. Steimetz, M. Dec. 17, 1926. Clamps.-A clamp has a fixed jaw d of prismatic cross section and fitted with hard rubber faces f. The nut k is guided in a slot i of an extension arm h and carries a pivoted arm l to which the jaws m are also pivoted.
Patent GB-1272384-A (GB)
Title: Jet lift engine assemblies for v/stol aircraft
Inventor: BROLL GUNTER
IPC: B64C29/00
Filed: 1970-07-02
Abstract: 1,272,384. Jet lift engine assemblies. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 2 July, 1970 [7 July, 1969], No. 32146/70. Heading B7G. A jet lift engine assembly is arranged in a V/STOL aircraft to provide two downwardly directed jets one on each side of the aircraft for roll control and comprises: a jet engine 11 pivotally mounted on links 14 so as to discharge an efflux from the discharge end of the engine casing which thereby moves laterally; and a bifurcated duet 20 mounted on the engine and the fuselage of the aircraft, for lateral movement when in use, to receive the efflux from the engine and deliver said two downwardly directed jets. The duct 20 is mounted in the engine casing by a spherical bearing 24 and is provided with a ring 22 mounted to the fuselage of the aircraft by links 23 which constrain the duct to move only laterally when in use. Movement of the duct is caused by pivoting bell cranks 21 mounted on the engine casing. When the engine 11 is in its central vertical position, Fig. 2, the duct may be pivoted about the axis of the engine from an outer operative position (shown in chain lines) to a stowed inoperative position (shown in solid lines in Fig. 2).
Patent GB-409782-A (GB)
Title: Improvements in mechanism for controlling the numbers in rotary numbering boxes for printing machines
IPC: B41F33/04
Filed: 1932-11-14
Abstract: 409,782. Numbering machines. MARTIN, F. R., 18, Laystall Street, London. Nov. 14, 1932, No. 32192. [Class 100 (ii).] In a numbering-machine adapted for repeat numbering, the cams k for actuating the number-changing levers of the numbering heads b are mounted on arms secured to a rocking shaft m and moved into and out of operative position by a cam p actuating an arm o on the shaft m. The cam p is rotatable with and slidably mounted on the shaft h of the cylinders a carrying the heads b and is moved into and out of register with the arm o at intervals, timed in accordance with the number of repeats desired by a face cam f and doublearmed lever q. The cam r, which, as shown, is adapted to cause the numbers to be changed at every alternate revolution of the cylinders a and impression cylinder c is rotated step by step by a single-tooth wheel t on the shaft d of the cylinder c engaging pins t<1> on the cam. The cam r is secured by a screwed cap r<1> which permits ready change of the cam for another of different contour when triplicate numbering is desired. When the arm o is raised by the cam p to bring the cam K into its operative position it is locked by a notched lever v, actuated by a spring v<2>, engaging a projection on the arm. Upon the next movement of the cam p into the inoperative position, a pin w on the lever q moves the lever v against the action of its spring to release the arm o.
Patent GB-282973-A (GB)
Title: Improvements in and relating to the manufacture and production of threads, filaments and the like from viscose
IPC: D01D5/247
Filed: 1926-12-20
Abstract: 282,973. Courtaulds, Ltd., Hegan, H. J., and Hazeley, E. Dec. 20, 1926. Cellulose xanthates, processes for making filaments from. - Artificial textile threads, filaments, bands, &c. are made by projecting into a bath containing sulphuric acid and 25 per cent or more of sodium sulphate, a viscose containing 2.4 per cent of added sodium carbonate, and sufficient caustic soda, say 7 per cent or more, so that the proportion of alkali radicle is considerably greater than the proportion of carbonate radicle, say in the ratio of 4: 1. The threads &c. show little or no inflation, are less lustrous than ordinary viscose silk, and possess a certain roughness on the exterior which gives them a felting or locking property like that of wool. Specifications 8700/92, 20801/00, 7748/10, 15752/10, 1436/11, 24291/14, 143,253 and 189,973 are referred to.
Patent GB-281669-A (GB)
Title: Improvements in and relating to electric switches for adjusting ratios of transformers
IPC: H01H9/00
Filed: 1927-11-30
Abstract: 281,669. British Thomson-Houston Co., Ltd., (Assignees of Soc. d'Electricite et de MÚcanique procÚdÚs Thomson-Houston et Carels). Nov. 30, 1926, [Convention date]. Oil switches; highpotential switches.- A polyphase, transformer tapping switch is mounted as shown in Figs. 3 and 4 within a cylindrical insulating casing 14 and has pairs of fixed contacts consisting of rods 16, 17 which are adapted to be bridged by contacts 19 consiting of rollers 18 mounted on a cranked portion of the operating shaft so arranged that line contacts are formed between the fixed and movable contact members. The rollers 18 are mounted resiliently upon the operating rod 20 as shown in Figs. 5 and 6 by having spiral springs 23 connected between the rod and the internal surfaces of the rollers which have their edges returned at 24 to prevent axial displacement. The rod 20 is connected by an insulating sleeve 28 to an operating handle 21 which is provided with a pointer 25 for indicating the position of the switch and spring means for positioning the switch in its contacting positions may be provided. The complete switch 10 may, as shown in Fig. 7, be mounted within the oil tank of a transformer with the handle 21 projecting externally through the lid 13. To allow free circulation of oil around the switch contacts the insulating blocks 15 carrying the fixed contact rods and the casing 14 are provided with holes 26, 27 below the level of the insulating liquid. Where the switch is employed to control the ratio of transformation of a three-phase transformer as shown in Fig. 7 the fixed contact 17 is divided, its two sections being connected to tapping on two of the phases 30, 31 while the contact 16 s connected to a corresponding tapping on the third phase 29. similarly for any number of phases tappings from the neutral ends of the phase windings are brought to pairs of parallel rows of contact rods adapted to be bridged in the manner described. To prevent disturbance of balance during switching over the rods 16, 17 are spaced sufficiently apart to ensure that no contact can take place in intermediate positions.
Patent GB-689164-A (GB)
Title: Improvements in or relating to hard metal alloys
IPC: C22C1/05
Filed: 1948-12-14
Abstract: A sintered hard metal alloy consists of two or more carbides of metals contained in the following two groups (1) W, Ti, Zr, V and (2) Mo, Ta, Nb and also Co and Ni as binding metals and is characterized in that at least one carbide is present from each of the said groups, that Co is used as a binding metal for carbides of metals from the first group and Ni is used as binding metal for carbides of metals from the second group and that the rates between the amounts of carbides of the first and second groups does not differ by more than 10 per cent from the ratio of the amounts of Co and Ni.  In a modification of the composition the amount of Ni is increased by 15-25 per cent over that calculated directly by equating the ratio of the contents of the two binding metals and the ratio of the contents of carbides from the respective groups of carbides.  Each carbide is preferably separately ground with its own binding metal, the separate carbides with associated binding metal being then mixed and sintered.
Patent GB-286808-A (GB)
Title: Manufacture of new derivatives from ligninsulphonic acid (sulphite cellulose waste)
IPC: D21C11/00
Filed: 1926-12-21
Abstract: 286,808. British Dyestuffs Corporation, Ltd., and Hailwood, A. J. Dec. 21,1926. Tanning with special chemicals.-Ligninsulphonic acid (sulphite cellulose pitch) is treated under pressure at an elevated temperature with ammonia solution. The products obtained may be submitted to alkaline reduction. In an example sulphite cellulose pitch is mixed with concentrated aqueous ammonia and heated in an autoclave. The resulting solution freed from ammonia, may be used direct or evaporated to dryness or it may be acidified and the acid products may be filtered off and dried, or reduced by means of caustic soda and zinc dust. The products find application as tanning agents.
Patent GB-391715-A (GB)
Title: Manufacture of phenol esters of sulphonated phthalic acids
IPC: C07C309/58
Filed: 1932-11-16
Abstract: 391,715. Wetting &c. agents. SOC. OF CHEMICAL INDUSTRY IN BASLE, Basle, Switzerland. Nov. 16, 1932, No. 32401. Convention date, Dec. 18, 1931. Addition to 370,845 and 371,144. [Classes 2 (iii) and 15 (ii).] In the manufacture of esters from sulphonated phthalic acids and their derivatives and phenolic compounds according to the parent Specifications, the reaction is carried out in the presence of tertiary bases which do not yield coloured condensation products with phthalic anhydride, e.g. trimethylamine, triethylamine, pyridine, lepidine, collidine and quinoline. As starting materials may be employed on the one hand sulphonated phthalic acids, e.g. phthalic acid- #-sulphonic acid or sulpho-4-chlorophthalic acid or their anhydrides or halides, and on the other hand monohydric or polyhydric phenols or naphthols or their derivatives so far as they contain a free hydroxyl group, e.g. phenol, cresols, chlorocresols, xylenols, naphthols, resorcinol monoalkyl ethers, oxynaphthoic acid esters or other derivatives of oxynaphthoic acid. The reaction may be carried out by dissolving or suspending the sulphophthalic acids or their derivatives in the tertiary base and heating the solution or suspension with the phenolic compound. If the ester is to be obtained by way of the halide, this may be produced during the reaction by means of phosphorus oxychloride. The products are wetting, cleansing, and emulsifying agents and may be used in the textile industry alone or together with soaps, substances resembling soaps or solvents. In many cases, particularly if the phenolic residue contains halogen, they are excellent agents for the protection of animal fibres against insect and cryptogamic pests. In examples : (1) #-sulphophthalic anhydride (obtainable by heating the free acid in vacuo) is dissolved in pyridine and the solution is heated with #-naphthol and phosphorus oxychloride ; the product causes very easy wetting in water ; (2) a similar reaction is carried out using hydroquinone monoethyl ether ; the product may be employed as wetting agent in a carbonizing vat ; (3) a similar reaction is carried out using o-chlorophenol; the product has a remarkable wetting power, e.g. in a carbonizing acid ; the o-chlorophenol may be replaced by p-chlorophenol, a chlorocresol or dichlorophenol.
Patent GB-878719-A (GB)
Title: Elastomeric adhesive compositions and their use in bonding
IPC: C09J115/02
Filed: 1958-10-10
Abstract: An adhesive comprises a solution of chlorinated natural rubber, halogenated polychlorobutadiene and chlorinated styrene-butadiene copolymer rubber, the respective proportions of these ingredients being, for example, 50%-90%, 20%-3% and 30%-7%. Examples are of formulations of 76% and 65% chlorinated natural rubbers, brominated and chlorinated polychlorobutadienes, 35% chlorinated SBR, carbon black, a dibasic lead phosphite for preventing oxidative degradation of the halogenated rubbers in ultaviolet light, and xylene, coal tar and petroleum naphthas, benzene and toluene as solvents.  The adhesive is of use in bonding an elastomer, e.g. natural, a butadiene-styrene copolymer, a butadiene-acrylonitrile copolymer or a polychlorobutadiene rubber, to an elastomer or to a surface of different type, e.g. of metal or textile material, a film of the adhesive being dried on at least one of the areas concerned in the bond to be made, the elastomer in uncured condition being applied, and the assembly being then heated sufficiently to cure the elastomer and form the bond.
Patent GB-324760-A (GB)
Abstract: 324,760. Maher, J. H. Dec. 10, 1928. Nails. - Wall boards 49, 50 are secured to sheet metal studs by nails which are driven in between the spring webs 21, 22. The nails may be wedgeshaped as at 52, or separate wedgepieces 86 may be used with ribbed or scored nails 53.
Patent GB-226974-A (GB)
Title: Improvements in bulkhead fittings for ships
IPC: B63B3/68
Filed: 1923-12-29
Abstract: 226,974. Bullock, J. W. Dec. 29, 1923. Cabins.-In arrangements for dividing hold spaces &c. into temporary cabins by means of sectional partitions, a device for securing the sections to a stanchion or to each other comprises a base plate 2 secured to the partition and having a stepped projection 8 terminating in a staple 7 which is designed to pass through a slot 9 cut in the flange of the stanchion, a bolt 1 working in guides 5 on the base plate being thrust forward into engagement with the projecting part of the staple. In a modification, the staple is replaced by a stud over which the bolt is thrust. The bolt is secured in its engaged position by a gravity stud 11. In a further modification, three abutting partitions are attached to each other without the assistance of a stanchion. In this form, two aligned partitions 3, 3a, Fig. 7, are supported by a tongue 18 taking into a groove and the partition 3B at right angles to the other two is provided with a fitting 19 terminating in flanges 15 which bear against the parttons 3, 3A. The bolts 1 are thrust forward through lateral slots 17 in the fitting 19 into engagement with the staple 7. In further modifications the invention is shown applied to the case where four partitions meet. Specification 201,479 is referred to.
Patent GB-488402-A (GB)
Title: Improved safety device for use with ball float cocks to prevent flooding in the event of disconnection of the float
IPC: F16K31/18
Filed: 1937-11-25
Abstract: 488,402. Float valves. BURROWS, S. F. Nov. 25, 1937, No. 32478. [Class 135] A device for lifting the arm 2 of a floatactuated valve to close the valve and prevent flooding in the event of the ball 3 becoming detached, whilst allowing normal free movement of the float and arm, comprises a bracket 4 secured to the rim of the side of the tank and from which an arm 6 extends over the tank to carry a spring 10 connected to the float arm.
Patent GB-943157-A (GB)
Title: Aqueous solution treatment
IPC: B01D1/00
Filed: 1961-09-11
Abstract: In producing pure water by the solid-hydrate formation process the pressure at any selected temperature is correlated to the hydrate forming characteristics by the equation <FORM:0943157/C1/1> where p1 is the minimum absolute pressure exerted by the hydrate former to achieve the desired final concentration of aqueous solution, p0 is the absolute pressure with pure water, x is the mole. fraction of water at the desired final concentration, m is the number of moles. of water in 1 mole. of hydrate.  A large number of hydrate formers is given.
Patent GB-850525-A (GB)
Title: Apparatus for storing, charging and allocating granular materials
IPC: E02F3/54
Filed: 1956-10-25
Abstract: 850,525. Weighing apparatus. ARBAU BAUGERATE G.m.b.H. [formerly ARBAU HANDELSGESELLSCHAFT]. Oct. 25, 1956 [Oct. 25, 1955], No. 32632/56. Class 143 [Also in Group XXX] Material 16 (Fig. 1) piled on the outside of walls 7 surrounding a tower-like structure, is fed to gates 13 in the walls by a drag line scraper 20 hauled by a line 18 passing over a pulley 19. In the construction of Fig. 1 several grades of aggregate 16 are separated by partitions 15 and are fed through separate gates 13 to an automatic feed weigher 6, or to a device for measuring volumes, and is then mixed, in a mixer 1, with cement delivered from a hopper 8 by a worm 11, and with water admitted through a measuring device 10. The mixed concrete may then be delivered through a pneumatic conveyer 3 to a building site. The winch 17 for the drag scraper is mounted, with its axis vertical, above the walls 7 and may be controlled through cables 21 from handles on the drag shovel 20 which may have a tail rope; several shovels may be provided: Alternatively a single shovel 43 shown in plan in Fig. 8 can be carried by one run of an endless driving cable 42 passed round a tail pulley 44 carried by a carriage 57 moved along a rope track 56 by an endless driven cable 58. The tension in the cable 42 maybe adjusted by tackle 46 and its value indicated by a spring measuring device 47. The track 56 may be replaced by a series of endless cables on to any one of which the carriage 57 may be secured. The drag line winch may be controlled by limit switches operated by stops 61 on the cable 42 and the discharge gates 13 and the winch may be controlled by an electromagnetic, electropneumatic or hydraulic system. Steam pipes or an infra red radiator 27 (Fig. 1) may heat the stored material, and vibrators may reduce its angle of repose.
Patent GB-451930-A (GB)
Title: Improvements relating to a process and apparatus for producing compressed air for internal combustion engines and applicable to other purposes
Filed: 1934-11-13
Abstract: 451,930. Gas turbines. MARTINKA, M., 7, Schweizerstrasse, Duisburg, Germany. Nov. 13, 1934, No. 32708. Convention date, Nov. 14, 1933. [Class 110 (iii)] The compressed air for use in gas turbines &c. is moistened by water which is evaporated by the waste heat generated during the process of compression. The Figure shows an arrangement in which heat-exchangers 47, 46, 45 are placed between the stages of a compressor 48. Water is forced by a pump 43 through the exchangers to a sprinkler 49 in a tower 50 through which part of the compressed air is passed and is therein moistened. The supply of water to the system is controlled by a float 39 in the sump of the tower. Compressed air may be drawn off through a heat exchanger 44 for purposes other than combustion in the engine such as cooling. The waste gases of the engine may be used in a regenerator. Several arrangements of heat-exchangers are described.
Patent GB-506403-A (GB)
Title: Method of manufacturing low phosphorus steel
IPC: C21C5/04
Filed: 1937-11-26
Abstract: 506,403. Steel. ELLIS, L. S. E. (United States Steel Corporation) Nov. 26, 1937, No. 32718. [Class 72] In the manufacture of low-phosphorous steel, a melt of basic low carbon steel is produced in an open hearth furnace, the steel removed, and blown Bessemer steel charged on. to the slag left in the open hearth furnace, the steel being withdrawn after a time interval sufficient for the removal of phosphorus and other oxidized impurities from the steel. A succession of batches of Bessemer steel may be treated by the same slag, one batch of purified steel being removed before a further batch of steel is added to the slag. A small amount of pig iron may be added to the slag and steel in the furnace to accelerate the purifying reaction.
Patent GB-1309176-A (GB)
Title: Nuclear reactor of the integrated heat-exchanger type
IPC: G21C19/00
Filed: 1971-07-13
Abstract: 1309176 Reactors ELECTRICITE DE FRANCE (SERVICE NATIONAL) 13 July 1971 [5 Aug 1970] 32724/71 Heading G6C In a liquid-cooled, fast reactor, a number of separate cores are movable within the pressure vessel so as to position them, in turn, at a refuelling device. The cores, 12, are cooled by the upward flow of coolant urged from the compartment 61 by the pumps, 56. The cores are disengaged from the heat exchangers 32 by a downward displacement of the platform 10, effected by the jacks 18. Rotation of the platform, by the gearing 20, displaces the cores in turn to the refuelling position 12a beneath the fuel handling device 30. The coolant flow rate is adustable by the valves 63.