baber/WOPTO huggingface dataset:
Patent GB-853915-A (GB)
Title: Foamed materials containing urethane groups
IPC: C08G18/50
Filed: 1958-11-18
Abstract: In producing foamed materials containing urethane groups, a mixture comprising tetrahydrofuran, ethylene oxide and/or propylene oxide, and epichlorhydrin is copolymerized, preferably in the presence of a catalyst, to form a polyhydroxy-polyether copolymer containing at least three hydroxyl groups, which is reacted with an alcohol and an alkali or alkaline earth metal salt of a carboxylic acid or with a mono alkali metal glycolate such as sodium glycolate, then with a polyisocyanate, e.g. in the presence of benzoyl chloride, and simultaneously or subsequently with water, which may be used in conjunction with catalysts promoting foaming, emulsifiers such as sulphonated castor oil, silicone oil, fillers and dyes.  Specified polymerization catalysts are: tertiary oxonium salts of the general formula:  <FORM:0853915/IV(a)/1> in which R is a hydrogen atom or an alkyl, acyl or acid radicle and X represents an anion of a difficulty polarisable acid, etherates of non-metallic halides such as the BF3 compound of tetrahydrofuran having the formula: <FORM:0853915/IV(a)/2> and a mixture of ferric chloride and thionyl chloride, Specified polyisocyanates are triphenyl methane triisocyanate and the following diisocyanates:-ethylene, ethylidene, propylene-1, 2-butylene-1, 3-, hexylene-1, 6-, cyclohexylene-1, 2-, m-phenylene, toluylene-2, 4-, or -2, 6-, 3, 31 dimethyl-4, 41-biphenylene, 3, 31-dimethoxy-4, 41-biphenylene, 3, 31-diphenyl-4, 41-biphenylene 4, 41-biphenylene, 3, 31-dichloro-4, 41-bipheny-lene, and 1, 5-naphthalene.  Specified catalysts which promote foaming are:- g -dimethyl aminopropyl ethyl ether mixed with either triethylamine or pentamethyl diethylene triamine, dimethyl hexahydroaniline, N-methyl morpholine; bisdiethylaminoethanol adipate, the product made by reacting N, N1-diethylaminoethanol with phenyl isocyanate and organic metal compounds.  Specifications 769,680, 769,682, German Specification 883,506 and French Specification 898,269 are referred to.ALSO:In producing foamed materials containing urethane groups, a mixture comprising tetrahydrofuran, ethylene oxide and/or propylene oxide, and epichlorhydrin is copolymerised, preferably in the presence of a catalyst, to form a polyhydroxylpolyether copolymer containing at least three hydroxyl groups, which is reacted with an alcohol and an alkali or alkaline earth metal salt of a carboxylic acid or with a mono alkali metal glycolate such as sodium glycolate, then with a polyisocyanate, e.g. in the presence of benzoyl chloride, and simultaneously or subsequently with water, which may be used in conjunction with catalysts promoting foaming, emulsifiers such as sulphonated castor oil, silicone oil, fillers and dyes.  Examples of suitable polymerisation and foaming catalysts and polyisocyanates are given.  Specifications 769,680, 769,682, German Specification 883,506 and French Specification 898,269 are referred to.
Patent GB-1479458-A (GB)
Title: Cigarette holder
IPC: A24F13/22
Filed: 1974-11-04
Abstract: 1479458 Cigarette holder B SIMPSON and K J SIMPSON 4 Nov 1974 [4 Aug 1973]. 37139/73 Heading A2M A cigarette holder comprises a barrel-shaped cylinder 10 having an extending hole 11 therethrough for receiving and fitting snugly around a cigarette in such a manner as to be slidable along the length of the cigarette, the hole 11 having orifices at each end substantially equal in diameter, and the cylinder having an outer circumference which tapers towards each end of the cylinder. The barrel-shaped cylinder 10, as shown, may have a collar 12 which has a bore portion 16 of increased diameter for frictional sliding engagement on the reduced diameter portion 14 of the main body 13.
Patent GB-867585-A (GB)
Title: Improvements in machines for the manufacture of marbleized bricks, paving tiles and the like
IPC: B28B5/08
Filed: 1957-12-04
Abstract: 867,585. Removing bricks from pressing machines. GIANNELLI, G. Dec. 4, 1957 [Dec. 7, 1956], No. 37739/57. Class 87(2). A brick- or tile-making machine comprises moulds resiliently mounted on a support 2 which is mounted for rotation about a column, 1, each mould comprising a frame 4 and a separable base structure 14 and a fluid-operated cylinder-piston system 15, 12 whereby the frame and base may be separated to allow for horizontal withdrawal of the moulded article and brought together again. As shown in Fig. 2, the frame 4 is carried from the support 2 by arms 3, on which it is resiliently mounted by two pairs of springs 5, 6 acting in opposite directions, and the frame is connected to a piston 12, Fig. 4, through rods 8 pivoted to the ends of a yoke 10 which passes under the arms 3 and is pivoted at 11 to the piston. As the support 2 rotates, a cam 22 operates a distributer valve 21 and causes compressed air to be supplied from a manifold 23 through a conduit 20 to the cylinder 15, lifting the structure 14 under the mould so that the base and frame engage one another through a rubber spacer 13. Another cam 26 operates a distributer valve 25 from which compressed air operates pneumatic vibrators 27. The cylinder 15 is formed by the inner of two concentric walls at the bottom of which is a spacer 17 through which the assembly rests on a support 18 when rotated to the pressing position. In a modification, Fig. 5, the piston 32 is annular, fitting in the space between the walls 15, 16, and is connected to the mould frame 4 through brackets 33 and rods 34. The vibrator 35 in this case is electrically driven and housed in the cylinder 15. In another modification, Fig. 6, a chamber 37 is defined by an outer cylindrical wall 38 and an inner tubular body 40 which has a step that forms the movable piston wall. In a third modification, Fig. 7, there are two cylinder piston systems 61, 64 and the piston-rods 63, which are secured to the mould frame, are surrounded by protective cup elements 66. Means are provided to allow easy removal of the air distributer manifold and change of packings of the distributer valve.
Patent GB-1188555-A (GB)
Title: Improvements in or relating to ampoules and like glass containers
Inventor: COPPE JOSEPH JULES
IPC: A61J1/06
Filed: 1967-08-17
Abstract: 1,188,555. Ampoule. EPSOM GLASS INDUSTRIES Ltd. 23 July, 1968 [17 Aug., 1967], No. 38028/67. Heading C1M. An ampoule or like tubular glass container of the kind which is to be hermetically sealed after it has been filled is provided with a region of weakening which consists of a chain of thin and thick portions produced by means of a serrated tool while the glass is in a softened condition, and the serrated region is weakened by a notch, scratch or the application of a solidified fusible material which is fused to the glass and which has a coefficient of thermal expansion greater than that of the glass. The region of weakening is particularly applicable to constricted neck ampoules of which the diameters at the constriction are greater than those set forth in British Standard Specification No. 795, 1961. The position of the notch or scratch is preferably indicated by a spot or ring of coloured solidified fusible material which may or may not have a coefficient of thermal expansion greater than that of the glass.
Patent GB-1062024-A (GB)
Title: Improvements in sensitized photographic silver halide emulsions
IPC: C09B23/06
Filed: 1963-09-27
Abstract: The Specification describes dyes of the general formula <FORM:1062024/C4-C5/1> wherein R2 is an alkyl or sulpho-alkyl group of 1-4 carbon atoms, R3 is an alkyl group of 1-4 carbon atoms, n is 2 or 3, Z completes a fused-on benzene or naphthalene nucleus and X1 is an anion, and the anhydro form of such dyes.  In examples, the dyes are prepared by condensing 2 - b  - acetanilidovinyl - 3 - ethyl - benzoxazolium iodide with 3-ethyl-1,2 - trimethylenenaphth [2,3-d]- or [1,2-d]-imidazolium iodide or p-toluene sulphonate, 3-ethyl-1,2-tetramethylene - naphth [2,3-d]-imidazolium-p-toluene sulphonate, anhydro-3-(3-sulphobutyl)-1,2 - trimethylene - naphth [2,3-d]-imidazolium hydroxide or 5,6-dichloro-3-ethyl-1,2-trimethylene-benzimidazoliu iodide.  Anhydro - 1,11 - di - (b  - carboxyethyl) - 5,51, 6,61 - tetrachloro - 3,31 - diethyl - benzimidazolo-carbocyanine hydroxide is prepared by heating 5,6 - dichloro - 1 - ethyl - 2 - methyl - benzimidazole with b -iodopropionic acid, dissolving the product in sodium alcoholate and reacting it with trichloro-1-ethoxyethanol.
Patent GB-350980-A (GB)
Title: Device for taking, developing, fixing and finishing cinematographic pictures
IPC: G03B17/53
Filed: 1929-12-12
Abstract: 350,980. Drying films in long lengths. STEINBORN, G., 12, Poststrasse, Bad Neunahr, Germany. Dec. 12, 1929, No. 38155. Convention date, Dec. 12, 1928. Void [Published under Sect. 91 of the Acts]. [Class 34 (i).] Exposed kinematograph film after being conveyed through developing and fixing baths by an endless band 10<1> is removed therefrom and guided to a rotating drying drum 22. The sides of the latter carry a number of spring-urged holders 39, Fig. 5, which are pressed apart by a fixed coneshaped member 41 to allow the film to be applied to the drum. A current of hot air is drawn through the opening 27 and supplied to the drum 22 through the opening 28 by the fan 26.
Patent GB-1021296-A (GB)
Title: Improvements in yielding mine arch support structures
IPC: E21D11/18
Filed: 1963-09-30
Abstract: 1,021,296. Yielding mine arch supports. APPLICATIONS SCIENTIFIQUES TECHNIQUES INDUSTRIELLES ET COMMERCIALS. Sept. 30, 1963 [Sept. 29, 1962], No. 38335/63. Heading E1E. In a yielding mine arch support the headpiece CO has two curved branches MB each with a radius of curvation identical to that of the extremity of each of the legs P1, the two branches meeting at an angle a which is the same as the angle which the legs mate with one another in the position of maximum subsidence. In a modification, Fig. 3 (not shown), the two branches are spaced by an intermediate section whereby the two legs are spaced apart in the position of maximum yield.
Patent GB-1204507-A (GB)
Title: Folding chairs
Inventor: TURNER ALBERT EDWARD
IPC: A47C4/44
Filed: 1967-08-21
Abstract: 1,204,507. A folding chair. A. E. TURNER. 21 Nov., 1968 [21 Aug., 1967], No. 38512/67. Headings A4H and A4J. In a folding chair, the length of the rear legs 21 below the back-rest 26 is selectable, i.e. the actual length of the rear legs below the pivot is adjustable either by a sliding connection or by pivoting one of a number of rear legs into position. Each limb 22 of the rear leg frame U passes through a separate swivel clamp 19 which is pivotally mounted to the seat portion 10. The back-rest 26, which may be an inverted U tubular frame covered with canvas, is pivoted to the frame 10 at 25, the free ends 28 being inturned to provide an abutment to engage with clamps 19 and limit back pivoting of the back-rest 26. The pivotally mounted U-shaped front leg portion 16 has a cross-bar 11 which acts as an abutment to limit forward pivoting of the front legs.
Patent GB-1403474-A (GB)
Title: Nuclear fuel assembly
IPC: G21C3/324
Filed: 1973-08-15
Abstract: 1403474 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 15 Aug 1973 [22 Aug 1972] 38582/73 Addition to 1361700 Heading G6C A fuel assembly comprises at least one bundle of fuel pencils 20 housed within a casing 10 adapted to carry a flow of liquid sodium and formed of at least two sections 34, 36 disposed end to end and interconnected by means of flexural strips 77 which allow angular displacement of the sections 34, 36 relative to one another. The strips 77 are disposed in a plane perpendicular to the axis of the casing 10 and each strip has at its two ends cylindrical shoulders 78, 79 engaging in holes 84, 85 formed in adjacent male parts 80, 82 of the two sections, which male parts engage in alternating female parts 81, 83. Each male part 80 of the top section 36 has a lateral recess 86 allowing clearance of the strips 77 when the sections 34, 36 are slightly offset from one another. The male and female parts 80, 81 are formed in a ring 18, preferably of a neutron-absorbent material, and the male and female parts 82, 83 are formed in a cylindrical head 60, the ring 18 and the head 60 being integral parts of the top and bottom sections 36, 34 respectively. During handling of the fuel assembly, a rim 88 on the head 60 bears against a flange 87 on the lower end of the top section 36. With the above-described connection between the casing sections, it is possible to reduce some of the consequences of arcuate deformation of the casings as a result of their swelling during operation of the fuel assemblies in a reactor core. More particularly, the jamming of the fuel assemblies on one another and difficulties during the extraction of such assemblies on fuel discharging are obviated.
Patent GB-889370-A (GB)
Title: Method of making driving mechanism springs or similarly stressed parts
IPC: C21D9/02
Filed: 1959-11-13
Abstract: A steel having the composition 0,78%C., 0,18% Si, 0,015% P, 0,022% S, 0,12% Cr, 0,49% Mn, 0,04% Mo, 0,10% Cu is heat-treated by austenitising at 800 DEG C. and subjecting to an isothevinal transformation at 340 DEG C.
Patent GB-338039-A (GB)
Title: Improvements relating to cooking and heating stoves
IPC: F24C5/18
Filed: 1929-12-18
Abstract: 338,039. Tortarolo, O. Dec. 18, 1928, [Convention date]. Oil stoves; baffles; boilers, arrangement oJ.- An oil cooking and heating stove comprises a body 1 of tubular form, with connections 2, 3 for a burner and outlet flue, mounted on a stand, and having internal means for causing the flame to contact with the lids and rings provided in its upper surface; in the stove shown, these means comprise a ring 9 for increasing the upward velocity of the flame, and a removable baffle 10, the upper part of which is serrated. A fuel tank C is carried by supports secured to the body 1 or to the stand. A water-heater V may embrace the outlet connection. The fuel is supplied through perforations 23 in the upper end of a flexible tube carried by a float 12, thus ensuring a constant supply unaffected by the fuel level. In the event of a stoppage in the supply to the burner 22 a float 18 in a float chamber 15 rises and closes a valve 14 controlling the passage from the fuel tank. Should the supply be in excess, the fuel returns from the burner through a pipe 20 and raises an annular float 17 in a chamber concentric with the chamber 15, which closes the same valve 14. The stove may comprise more than one burner, and the lower part of the stove body may be of refractory material and the upper part of cast iron. The stand supporting the stove may be provided with a shelf or " hot-plate " beneath the stove, or with a plate .arranged in the upper part and supporting refractory bodies to prevent downward radiation of heat.
Patent GB-1337665-A (GB)
Title: Hydrostatic motor
IPC: F16H21/36
Filed: 1971-08-19
Abstract: 1337665 Hydraulic reciprocating motors BERGISCHE ACHSENFABRIK FR KOTZ & SOHNE 19 Aug 1971 [20 Aug 1970] 38910/71 Heading F1A A hydraulic motor, e.g. for driving a vehicle wheel, comprises a rotor 3 supported by bearings 13 in a casing 1, and a crankshaft 4 eccentrically mounted by bearings 14 in rotor 3 and having crankpins 9, 10 connected by piston rods 11, (12), Fig.1 (not shown), to pairs of pistons 7a, 7b, (8a), (8b), one pair arranged at right angles to the other, a pinion 19 fixed to crankshaft 4 engaging an internally toothed ring 20 fixed to casing 1, and a cam 35 formed on rotor 3 actuating slide valves 31, (32), Fig.3 (not shown), controlling supply and exhaust of working liquid to and from the respective pairs of working cylinders. A number of motors may be disposed about the input shaft of a gearbox in a vehicle wheel hub, Fig.4 (not shown) drive to the shaft being transmitted by gear teeth 21 on rotor 3.
Patent GB-389242-A (GB)
Abstract: 389,242. Matches. KNEBEL, C., 7, Silberhofstrasse, Freiberg, Saxony, Germany. Jan. 27, 1932, No. 2493. Convention date, Jan. 27, 1931. [Class 50.] Matches are made from paper, board. cardboard, &c. by splitting a band o of material on one or both sides and bending each match length b about a longitudinal centre line so that a space c is formed between adjacent matches along their whole length. The bending is effected by a punch and die to produce a semi-circular or angular form in cross-section. The shape is made permanent by the paraffining operation and the igniting head d fills up the space between the stem walls and increases resistance to bending. Instead of booklet matches as shown loose matches may be made by severing them at the base from the band.
Patent GB-931526-A (GB)
Title: Improvements in, or relating to, damper valves
Inventor: COUCH ANTHONY LIONEL
IPC: F16K1/16
Filed: 1960-11-15
Abstract: 931,526. Ventilators. J. P. SANDISON, and A. L. COUCH. Dec. 15, 1961 [Nov. 15, 1960], No. 39122/60. Class 137. [Also in Group XXIX] In a damper valve for controlling pressurized atmospheres, e.g. in a hospital operating theatre or in engineering works, a counterweighted damper blade 6 provided with two knife-edge bearings 7 is supported on two horizontally-opposed bearing supports 4 within an open-ended housing 1 so that it spans, and tends to obstruct, the airflow through the housing and is swung, against counterweight action, from its flow obstructing position by an air pressure differential of predetermined value across the blade. As shown, Fig. 1, the housing, which may be fixed in a partition 3, or a brick wall (Figs. 3 and 4, not shown), by means of an external flange 2, has the bearing supports 4 attached by screws 4a, Fig. 2, to the side walls approximately midway between the open ends of the housing to provide for the damper blade 6 a pivot axis parallel to the floor and roof of the housing, and slightly nearer to the floor than to the roof. In the top of each bearing support is a transverse groove or slot 4b with a symmetrical V-shaped floor, on which the knife edges of the blade bearings rest, having an included angle of 120 degrees, while shoulders 4c project vertically upward from the ends of the slot. A fixed internal stop projects from the roof of the housing vertically above the pivot axis. The damper blade 6, which is formed of a flat metal sheet of the same shape as, but slightly smaller than, the housing internal crosssection, carries two bearing strips 7a on its pressurized face, each having laterally projecting lug 7c on the lower edge of which is the knife edge bearing 7d coplanar with the blade face. Also on the pressurized face of the damper blade are two tubular counterweights 8, attached to the bottom edge of the blade, and 9 on parallel arms 10 at a height at which it is level with the pivot axis when the blade is in the closed position. Each counterweight may comprise an aluminium tube loaded with lead shot, and having a removable plug 12 in at least one end to allow removal or insertion of shot for balance adjustment. The damper blade may be balanced to open at or above a differential pressure of the order of 0.02 inch W.G. to 0.08 inch W.G. and may be made sensitive to a change in differential pressure of 0.005 inch W.G.
Patent GB-999001-A (GB)
Title: A method of and apparatus for ascertaining geometrical data of bodies having a curved surface
Inventor: ERBEN ALOIS
IPC: G01B11/00
Filed: 1961-11-01
Abstract: 999,001. Measuring by interferometry. CARL ZEISS JENA VEB. Nov. 1, 1961, No. 39136/61. Heading G1M. Measurement of diameters, chords and angles of bodies with curved surfaces is effected by impinging an inclined light beam on the extremities of the surface to be measured (e.g. the diametric ends of a cylindrical body) and examining the interference fringes with a microscope, a partial pencil of light being reflected from the extreme point interfering with a partial pencil direct from the source of illumination. A body 28, Fig. 2, the diameter of which is to be measured is supported in a frame 11 supported on legs 12. An illuminant source 43 is angularly adjustable so that an inclined light beam can be directed first across one edge of the body and then by linear adjustment with a screw 36 and a reversal of the inclination, across the opposite edge or diameter. A microscope 17 is adjusted vertically and horizontally to the reversal point of the interference fringes on each side of the body. A connection definding on the wave length of the light used and the angle of inclination of the light source is substracted from the amount of horizontal displacement of the microscope 17 to give the true reading of the diameter of body 28. A second microscope 18 directed on to a glass scale 27 may be arranged to move with microscopic 17 to read the displacement thereof.
Patent GB-816596-A (GB)
Title: Improvements in or relating to the production of ammonium pyrrolidone carboxylate
IPC: C07D207/28
Filed: 1957-12-17
Abstract: DL-pyrrolidone carboxylic acid ammonium salt is prepared by reacting an a -halogenoglutaric acid, a -halogenoglutaric anhydride, or a mono- or di-alkyl ester of an a -halogenoglutaric acid, with aqueous ammonia, the molar ratio of ammonia to glutaric acid derivative being at least 2 : 1, preferably at least 5 : 1, under pressure sufficient to maintain an aqueous liquid phase and at a temperature of 150-275 DEG  C., preferably 200-250 DEG  C.  The alkyl esters may contain alkyl groups of 1-4 carbon atoms.  An inert gas such as nitrogen may be used to maintain the pressure. "Halogeno" means chloro, bromo, or iodo, chloro being preferred. The resulting ammonium DL-pyrrolidone carboxylate may be hydrolysed to DL-glutamic acid, either without purification or after crystallization and purification.  a -Chloroglutaric anhydride and monomethyl a -chloroglutarate are prepared by chlorination of the simple compounds.  Dimethyl a -chloroglutarate is prepared by esterification of a -glutaric acid.