baber/WOPTO huggingface dataset:
Patent GB-1283327-A (GB)
Title: Process for the discontinuous copolymerization of conjugated dienes containing at most five carbon atoms, and vinylaromatic compounds
Inventor: AMERONGEN GERRIT JAN VAN
IPC: C08F236/10
Filed: 1971-04-19
Abstract: 1283327 Copolymerizing conjugated dienes and alkenyl aromatic compounds SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [16 April 1970] 26920/71 Heading C3P A process for the discontinuous copolymerization of at least one conjugated diene containing at most 5 carbon atoms and at least one alkenyl aromatic compound in a liquid diluent in the presence of an initiator based on lithium comprises (a) preparing a starting mixture of the diluent and a part of the total quantity of each monomer, (b) initiating copolymerization by contacting this mixture with the initiator and (c) keeping the monomer ratio in the reaction mixture constant during the copolymerization by adding the remaining part of each monomer. Specified monomers are butadiene, isoprene and piperylene; and styrene, α-methyl styrene, pmethyl styrene, #-methyl styrene, 1-vinyl naphthalene and 2-vinyl naphthalene. The initiator may be lithium or methyl, isopropyl, butyl, amyl, 2-ethylhexyl or phenyl lithium; ethylene, trimethylene or pentamethylene dilithium; 1,4-dilithiobenzene; 1,5-dilithiobenzene; 1,5-dilithionaphthalene or 1,3,5-trilithium pentane. The diluent may be an aliphatic, cycloaliphatic or aromatic hydrocarbon; and polymerization may be effected in the presence of cross-linking agents, e.g. divinylbenzene, and coupling agents, e.g. silicon tetrachloride, tin tetrachloride, hydrocarbon dihalides, ethyl acetate, ethyl acrylate, phenyl benzoate and diethyl adipate. Examples describe the copolymerization of butadiene and styrene in hexane/ cyclohexane mixtures in the presence of sec. butyl lithium and with the addition of silicon tetrachloride after the monomers.
Patent GB-1134644-A (GB)
Title: Cyclic on-off electronic timing system
Inventor: EY LAWRENCE GIRARD COR
IPC: H03K17/292
Filed: 1966-06-16
Abstract: 1,134,644. Starting prime movers. ARROW ELECTRIC SWITCHES Ltd. 16 June, 1966 No. 26921/66. Heading H2H. A circuit for timing say the on and off periods of a starter motor which circuit locks out after a determined number of starts comprises - unijunction transistor timing circuits 16, 17 determining the on and off times which operate relays 14, 15 alternately through the firing of thyristors 45, 58. Operation of relay 15 closes contacts 62, 63 which starts through a transformer 66 a counter 24, which is advanced by pulses developed by contacts 83-85 of relay 14 and a capacitor 82. After a determined number of pulses a relay 13 opens contacts 20, 21 disconnecting the motor 12. The control circuit is supplied through a voltage regulator comprising a Zener diode 25, resistor 26 and a transistor 29. Further contacts 100-102 may operate an alarm system.
Patent GB-893579-A (GB)
Title: Improvements relating to stator units for use in rotary power plants utilizing compressors or turbines
IPC: F01D9/04
Filed: 1958-08-21
Abstract: 893,579. Turbine or compressor stator blade mountings. UNITED AIRCRAFT CORPORATION. Aug. 21, 1958 [Aug. 22, 1957], No. 26924/58. Class 110 (3). In a stator unit for rotary power plants including a compressor or turbine in which each of a number of equally-spaced radially-extending vanes may be removed independently from one side only of the unit, the vanes are each provided at their outer ends with an axiallyextending platform and at their inner ends with two radially-extending flanges of different heights. The vanes are supported at their outer ends by an outer support-ring having radially-directed pins or lugs, one of which projects loosely through the platform of each vane, and are supported at their inner ends by an inner support comprising two radially-extending circular flanges of different outer diameter, of which the flange of smaller outer diameter is connected to axially-extending lugs one of which projects through one of the flanges on each vane. In Fig. 1, the stator unit 18 comprises a plurality of stator vanes 20 which are individually supported at their inner end by inner supports 22 and at their outer end by outer support 24. The outer support 24 comprises an annular axially-directed ring 26 which is supported by a one-piece outer turbine casing 28, and has a plurality of radial holes 36 spaced equally circumferentially to receive outer vane supportpins 38, which loosely engage the outer vane platform 54. The ring 26 further comprises a flange 40 against which an anti-erosion and thrust strip 42 bears, the strip being cooled by air passing through a bore 48. The inner support 22 comprises a conical casing 60 from which annular flanges 62, 64 project. The flange 62 has a plurality of holes 70 which each receive an inner vane support-pin 72. The inner end 74 of vane 20 comprises flanges 78, 80 joined by a member 82 and in the assembled position (Fig. 1) these flanges abut flanges 62, 64 respectively, each pin 72 passing through a corresponding hole in the flange 78 which is retained by locking-wires 92. The plain pins 72 may be replaced by threaded bolts. To assemble a vane 20, the inner vane end 74 is tilted axially forward or upstream of the outer vane end 76 such that connection may be made between the pin 38 and the platform 54, whereupon the vane 20 may be pivoted about pin 38 into position as shown in Fig. 1 and held therein by the pins 72 and the locking-wires 92.
Patent GB-629237-A (GB)
Title: A device for preventing the formation of brush discharges
IPC: H01T19/02
Filed: 1945-10-15
Abstract: 629,237. Protective arrangements. AKT.- GES. BROWN, BOVERI, & CIE. Oct. 15, 1945, No. 26951. Convention date, Oct. 14, 1944. [Class 38 (iv)] Electrode structures formed of evenly-spaced wires of diameter not exceeding 2 mm. surround high voltage conductor ends, supporting insulators, or the edges of casings containing electrical apparatus, to prevent corona discharges. Fig. 1 shows a conductor end a protected by radially projecting wire rings c1-c5 carried by'a collar b attached to the conductor. The separate rings may be replaced by a single toroidal winding of wire. A length of conductor may be protected either by a series of axially-spaced devices of this form or by a plurality of straight wires grouped coaxially around the conductors.
Patent GB-252784-A (GB)
Title: Improved composition for use in buildings and the like
IPC: E01C7/18
Filed: 1925-08-11
Abstract: 252,784. Leyland, A. Aug. 11, 1925. Compound bricks.-Natural clay is dried and ground and immersed in boiling tar from which the more volatile constituents have been driven by heat, for example by heating to 230‹ F. The mass may be moulded into slabs or blocks, with or without a wood base. If a concrete facing is to be applied, small stones may be heated and rubbed into the surface to provide a key. Suitable proportions are 40 parts of tar and 60 parts of clay. Specification 23271/06, [Class 20, Buildings &c.], is referred to.
Patent GB-1527782-A (GB)
Title: Tempering apparatus for glass sheets
IPC: C03B25/08
Filed: 1976-06-29
Abstract: 1527782 Tempering glass sheets TAMGLASS OY 29 June 1976 [30 June 1975] 27002/76 Heading C1M Glass sheets 1 are heated substantially to their softening point for tempering in a furnace 3, means being provided for reciprocating the sheets while heating, and are then discharged from the furnace to cool and temper them. The sheets 1 are preferably carried from feeding station 2 to furnace 3 on a roller conveyer whose motion is periodically reversed to give the reciprocation, the sheets then being carried to cooling station 4 and discharge station 5. The sheets may be reciprocated over a distance of 0À1-2 metres, enabling the heating zone to be shorter than in conventional devices.
Patent GB-152529-A (GB)
Title: Improvements in pyrotechnics
IPC: C06B43/00
Filed: 1919-11-03
Abstract: 152,529. Brock, A. Nov. 3, 1919. Pyrotechnic compositions.-Consists in the use of hexamethylenetetramine or its salts in substitution for or in addition to the whole or part of the usual combustibles in pyrotechnic compositions, such as charcoal, shellac, dextrin, sugar, and oil. Compositions containing hexamethylenetetramine are especially suitable for indoor fireworks by reason of their reduced noise and smoke.
Patent GB-893937-A (GB)
Title: Improvements in or relating to carton-closing machines
Inventor: OXBORROW BERNARD HEWLETT
IPC: B65B51/16
Filed: 1959-08-07
Abstract: 893,937. Packaging-machines; cartons. METAL BOX CO. Ltd. June 13, 1960 [Aug. 7, 1959], No. 27140/59. Classes 18 and 94(1). A filled carton having lid flaps 7, 8, 9 has the lid folded down and is thrust into a heat sealing chamber on a rotatable carrier, this operation folding and receiving the flaps against walls 2, 3, 4 of the carton. The carton then passes into a cooling chamber on the carrier. The carton may be completely wax-coated and thermoplastic material of a higher melting point than the wax may be applied to the flaps before waxing. Alternatively, the coating may be of thermoplastic resin. The cartons are fed to the carrier 18 by a conveyer 12, a bar 15 folding down the lids. The carrier comprises a series of contiguous upper and lower chambers 39, 22. The chamber 22 is electrically heated and the chamber 39 cooled by circulating liquid. Beneath each pair of chambers is a vertically movable pusher 60 operated by a fixed cam 65 to raise each carton into the lower heating chamber from the conveyer 12. After the carton has travelled about 180 degrees, the pusher rises again to transfer it to the cooling chamber 39. This movement causes a carton previously in the chamber 39 to rise above the carrier and to be guided on to a discharge conveyer 69.
Patent GB-487642-A (GB)
Title: Improvements in chlorinated aralkyl ketones
IPC: C07C45/63
Filed: 1937-10-07
Abstract: Chlorinated phenyl-, tolyl-, or xylyl-heptadecyl ketones containing one, two, or more atoms of chlorine are used as lubricants or as constituents of lubricating mixtures.  The dichlorinated derivatives of xylyl heptadecyl ketone are particularly useful as extreme pressure lubricants, a mixture of equal parts of the ketone and Pennsylvania Bright stock being specified.  Specification 481,338 is referred to.ALSO:Phenyl-, tolyl-, or xylyl-heptadecyl ketones are mono- or dichlorinated.  The starting materials are prepared by reaction of benzene, toluene, or xylene with stearyl chloride in presence of aluminium chloride.  In examples, a mixture of isomeric xylylheptadecyl ketones is chlorinated under 30 DEG  C. in presence of a trace of iodine till a monochlor body is obtained, or under 60 DEG  C. to obtain a dichlor body; three or more chlorine atoms may be introduced by more drastic chlorination.  Phenyl- and tolylheptadecyl ketones may be mono- and dichlorinated similarly.  The products are useful as lubricants or as constituents of lubricating mixtures, a mixture of equal parts of dichlorinated xylylheptadecyl ketone and Pennsylvania Bright stock being specified as a useful extreme pressure lubricant. Specification 481,338 is referred to.
Patent GB-1204177-A (GB)
Title: Process for the combustion of carbonaceous material
Inventor: MCLAREN JAMES
IPC: F23J7/00
Filed: 1967-10-10
Abstract: 1204177 Combustion in fluidized beds COAL INDUSTRY (PATENTS) Ltd 1 Oct 1968 [10 Oct 1967 7 June 1968] 46234/67 and 27239/68 Headings C5G and G10A Carbonaceous material is combusted in a fluidized bed of ash particles, having a carbon content of not more than 0.5% at a temperature between 700‹ and 900‹C, calcium carbonate, in the form of limestone or dolomite also being fed to the bed. Preferably the weight of carbonate supplied is between 2 and 14% of that of the carbonaceous material, which is in the form of coal. Both the carbonaceous material and the carbonate are in the size range 0-10 B.S.S. Ferrous oxide may also be introduced into the bed.
Patent GB-327097-A (GB)
Title: Improvements in and relating to lubricants
Inventor: PRENDERGAST RICHARD SAMUEL
IPC: C10M103/06
Filed: 1928-09-22
Abstract: 327,097. Prendergast, R. S., Prendergast, C. S., Sonsthagen, A., and Pearson, F. Sept. 22, 1928. Lubricants for machinery subject to friction and rapidly varying pressure e.g. gear wheels, friction gears, and roller bearings, contain such proportions of a metal, metal oxide, or metal compound, electropositive to the steel or other metal of the gears as to make the lubricants anodic thereto, such proportion being ascertained; by the following formula:- where A = the percentage of the electropositive component, a = the potential in volts of the electropositive component, b = the potential in volts of the metal of the gears &c., c = the percentage of water in the complete lubricant, K = 1312, 1180, or 770 according as the working conditions are ideal, normal, or bad. Electropositive substances specified are zinc, zinc oxide, and, according to the Provisional Specification, zinc carbonate, cadmium, and cadmium oxide. Pure mineral oil, fixed oil, and grease lubricants are referred to. One or more of the components may be in colloidal form. 28.5 per cent of zinc oxide is suitable when the lubricant contains 1 per cent of water, working conditions are normal, and the gears &c. are of iron or steel. Normally a coating of zinc on the steel is produced.
Patent GB-717464-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: WAHLIN FRED W
IPC: B05B1/04
Filed: 1952-10-30
Abstract: 717,464. Spray-producers. SPRAYING SYSTEMS CO. Oct. 30, 1952, No. 27288/52. Class 69 (3)  A spray nozzle includes a tip part 17 with a passage 19 leading from a cavity 18, the passage 19 having a dome shaped end with an elongated discharge orifice 21 extending across this end. The orifice may be arranged at the base of a groove 22 extending across the outer face of the nozzle tip, which groove includes sloping parts 23. The orifice width varies along its length, and is formed partly by a V-shaped cutter extending across a part 37 and intersecting the dome-shaped end of the passage 19 to form the narrow end of the orifice, and partly by a rounded end cutter extending across a part 35 and intersecting the end of the said passage to form the wide end. The nozzle tip is secured, together with a strainer 24, within a nozzle body 15, Fig. 3, and two such nozzles are secured in an angularly adjustable manner by a bolt and nut 47, 48, to a fitting 38. The two nozzles are arranged so that the spray from the narrow ends of their outlets overlap.
Patent GB-225209-A (GB)
Title: Improvements in rotary electric quick release switches
IPC: H01H19/10
Filed: 1924-11-15
Abstract: 225,209. Appareillage Gardy Soc. Anon. Nov. 22, 1923, [Convention date]. Switches, quickaction; contacts; arcrupturing devices.-A turn switch has a spindle A operated by the turn button on which is mounted loosely all insulating cylinder 0 carrying in an annular recess double moving contacts K. The shaft A carries a cam E so arranged that when the shaft A is turned the spring D is first strained after which the eccentrically mounted cam disc moves inwardly the end of a member F attached to the contact carrier so that this end is released from a fixed projecton G, the contact carrier moving quickly until the member F is arrested by the succeeding fixed projection G<1>. The movable contacts K are formed of two plates of springy metal riveted together, their contact portions being shaped to embrace fixed blade contacts L. To prevent sparking on breaking the circuit sheets of insulating material N, N<1> are superposed over the contact clips to extend rearwardly of each clip so as to engage the contact faces of the fixed blades L immediately after the clips K are withdrawn.
Patent GB-297988-A (GB)
Title: Improved means for and method of manufacturing cable cords
IPC: D01H1/00
Filed: 1927-10-15
Abstract: 297,988. Howard & Bullough, Ltd., Blackburn, J. H., and Bancroft, W. E. Oct. 15, 1927. Twisting-machines with twisting arrangements at delivery; spindle apparatus; thread guides.- In the manufacture of cable cord in one machine, plied but untwisted yarns l are twisted at delivery by ring and traveller apparatus and are twisted or cabled into a cord w by flyer or ring and traveller apparatus, a positive nip being applied during these operations by rollers k, x. The twisted ends m are passed beneath detector levers of a stop motion r and are led to a grooved guide bar u above the rollers x by a grooved guide, s and rods t.
Patent GB-748724-A (GB)
Title: Desdimethylamino-oxytetracycline
Filed: 1953-10-06
Abstract: Desdimethylamino-oxytetracycline formula <FORM:0748724/IV(a)/1> is produced by reacting oxytetracycline with zinc in a mildly acidic medium consisting of (a) an aliphatic carboxylic acid having between one and three carbon atoms, e.g. acidic or propionic acid or (b) a dilute aqueous or dilute aqueous-alcoholic solution of a mineral acid containing not more than 5 per cent of the acid, e.g. hydrochloric, hydrobromic, sulphuric or phosphoric acid.  A temperature of 0 DEG to 35 DEG  C. is preferred.  The oxytetracycline may be in the form of the amphoteric compound, the acid salt, e.g. the hydrochloride, or the metal salt, e.g. the sodium or potassium salt.  In the case of the acid salt, it is preferred to add a base such as sodium acetate to the reaction mixture.  Zinc is used in proportions of 0.5 to 3.0 on the oxytetracycline.  In the case of mineral acid reactions the desdimethylamino-oxytetracycline is extracted from the reaction mixture by organic solvents such as chloroform, methylene chloride, carbon tetrachloride, diethyl ether or aliphatic water-immescible ethers.  In the case of reactions in aliphatic acids, preferably in an inert atmosphere such as nitrogen, the residue obtained by evaporating the filtered reaction liquid to dryness is treated with water and then with ether.  The ether insoluble is dissolved in alcohol, decomposed by strong mineral acid such as hydrochloric, further alcohol added and the desdimethylamino oxytetracycline precipitated by the addition of water.  It is extracted with ether and recrystallized from acetone.  Formula C20H19NO9, bound C 57.42 per cent, H=4.62 per cent, N 3.34 per cent; crystalline, melting at 217-218 DEG  C.; [a ]25D= -137 DEG  (1 per cent methanol), =47 DEG (1 per cent acetone); pKa 6.9 and 8.8 (50 per cent aqueous methanol). May be used in veterinary or pharmaceutical preparations (see Group VI).ALSO:Desdimethylamino oxytetracycline, produced by reacting oxytetracycline with zinc in a mildly acidic medium (see Group IV(b)), is incorporated into pharmaceutical or veterinary preparations for internal or external administration e.g. suspensions, elizirs, capsules and tablets.
Patent GB-1109347-A (GB)
Title: Winding-off device for wire winding machines
Inventor: GUDER DIETER
IPC: B21C47/34
Filed: 1966-06-20
Abstract: 1,109,347. Unwinding device. SCHNELLFLECHTER BERLIN VEB. 20 June, 1966, No. 27445/66. Heading D1J. In a wire unwinding device, the wire 15 is passed through a block-and-tackle system 17, 18 which expands or contracts during the start of unwinding or braking respectively. This prevents snapping of the wire during the starting-up operation due to the inertia of the reel and takes up the length of wire that continues to be fed off the reel during braking. When the wire 15 is subjected to tension, the rollers 18 mounted on pivot 7 move toward rollers 17. Pivot lever 7 is mounted on a tension shaft 8 which also carries cam segment 12 so that as the rollers 18 move and rotate the tension shaft roller 14 is depressed. Roller 14 is mounted on brake lever 4 and this lever releases the tension in the brake band 3 when roller 14 is depressed. The unwinding reel 2 is rigidly connected to the brake disc 2 and is thus freed to rotate when wire 15 is tensioned. When the tension in wire 15 is released, the rollers 17, 18 take up any slack in the wire and reel 2 is braked. The tension of shaft 8 and lever 4 can be adjusted by worm wheel 11 and screw 6 respectively.
Patent GB-465523-A (GB)
Title: Improvements in methods of jointing, and of effecting repairs to, electric cables
IPC: H02G15/10
Filed: 1935-10-07
Abstract: 465,523. Cable joints; repairing cables. CABLON, Ltd., and CHAPLIN, S. Oct. 7, 1935, No. 27631. [Classes 36 and 38 (i)] A wiped joint between a cable sheath and a cable joint casing or the like, or a wiped repair to a damaged cable is reinforced against internal pressure by a casing that encloses the wipe and is filled with a fusible material that remains solid at the working temperature of the cable. A high-tension cable, having two sheaths 1, 2 between which is a space 8 containing gas under high pressure, is led into a joint casing 4 through a copper cylinder 3, the ends of which are sealed by wiped joints A, B to the sheaths 1, 2. The wiped joint A is reinforced by a steel cylinder 12 filled with a material such as an alloy of lead, tin, bismuth, and cadmium having a melting point below the temperature at which the wipe A softens. The wiped joint B is enclosed in a cylinder 6 which is in communication by means of a pipe 9 with the gas space 8 and by means of a longitudinal bore with the space 7. The pressure on the interior and exterior of the wipe B is thus equalized, but the wiped joint C between the cylinders 3, 6 is enclosed in a brass casting 15 with a reinforcing filling 17. A damaged cable is repaired by a wipe covering the damaged area and reinforced by a longitudinally divided sleeve enclosing the filling of fusible alloy or the like.
Patent GB-519692-A (GB)
Title: Improvements relating to domestic ranges or fireplaces
IPC: F24B1/191
Filed: 1938-09-24
Abstract: 519,692. Refuse-consuming stoves. WILSONS & MATHIESONS, Ltd., .and BOWEN, F. Sept. 24, 1938, No. 27920. [Class 126] A domestic range or fireplace is fitted with a chamber i having a grate j at the bottom to receive kitchen or other refuse to be burnt. The hot gases from fuel burning on the fire grate a are admitted to the chamber through a door k and gases escape to the chimney through an opening o at the top of the chamber. A door n hinged at one of its side edges and a grating hinged at its lower, edge allow the insertion of the refuse into the chamber. A boiler c may be provided at the back of the grate above a hot gas passage leading to a flue passage e controlled by a damper f. A second damper h is provided between the chamber and - the canopy b. In a modified construction the grating m is dispensed 'with and the door n is hinged at its lower edge [to the chamber.
Patent GB-703629-A (GB)
Title: Improvements in hand carriers, bags, satchels and the like
IPC: A45C3/04
Filed: 1950-11-15
Abstract: 703,629. Handbags. TORRANCE, W. R. L. Feb. 15, 1952 [Nov. 15, 1950], No. 27932/50. Class 133 A bag-like container having a mouth, part 3 readily closable is shrouded within an outer covering 5 of woven fabric or other flexible material and having the appearance of a kilt. A miniature sporran 7 is suspended by a chain and when the container holds a whisky bottle may contain a corkscrew. The bag is carried by loops 8 which in a modification are replaced by a drawstrirng. The top of the container may be closed and access had through an opening in the side closed by a sliding clasp fastener. In a modification, Fig. 6, the container has its top closed by a hinged lid 11.
Patent GB-348988-A (GB)
Title: Manufacture of ª‰-hydroxy-derivatives of alkyl-pyridines
Filed: 1930-09-18
Abstract: b -Hydroxy-alkylpyridines are prepared by fusing the corresponding sulphonic acids, other than a -picoline-b -sulphonic acid, with an alkali.  The starting materials may be made by the process described in Specification 335,817, [Class 2 (iii), Dyes &c.].  Examples are given of the preparation of b -hydroxy-g -picoline and b -hydroxy-b 1-ethyl-a -picoline. Both products couple in alkaline solution with diazotized p-nitraniline to give a red colour which turns yellow on addition of acid.