baber/WOPTO huggingface dataset:
Patent GB-893728-A (GB)
Title: Laminates and process for their manufacture
IPC: B32B27/00
Filed: 1959-07-14
Abstract: 893,728. Modified epoxy resins. DOW CHEMICAL CO. July 14, 1959 [Dec. 29, 1958(2)], No. 24208/59. Drawings to Specification. Class 2(5) [Also in Groups VIII and XL(a)] An epoxy resin containing ,as a flexibilizer, the radicals of one or more polyoxalkylene glycols having a chain length which corresponds to a molecular weight of the glycol of at least 200 chemically combined therewith is made by reacting a di- or polyfunctional epoxide with a diglycidyl ether of a polyoxyalkylene glycol or a polyepihalohydrin diepoxide. Specified epoxy resins being those made from aromatic polyhydroxy compounds and epihalohydrins, e.g. condensates of epichlorhydrin with bis-phenol-A and phenol-formaldehyde resins, 3,4-epoxy-6- methylcyclohexylmethyl-3,4-epoxy-6- methylcyclohexane carboxylate, vinyl cyclohexane carboxylate, vinyl cyclohexane dioxide and dicyclopentadiene dioxide. Specified flexibilizers are the diepoxides of polyoxyethylene, polyoxypropylene and polyoxybutylene glycols. The modified epoxy resins are used as adhesives in the preparation of laminates, being hardened in the presence of hardening agents and catalysts, e.g. polyoxyalkylene polyamines, cyanoethylated polyoxyalkylene polyamines, polyakanol polyamines, polybasic acid anhydrides, the boron trifluoride salts of monoethylamine, triethylamine and benzyl diethylamine. In the Examples:-(1) a bis-phenol-A-epichlorohydrin condensate is reacted with a diglycidyl ether of polyoxypropylene glycol, the product being cured with a mixture of monoethanolamine and diethylene triamine; (2) the diglycidyl ethers of bis-phenol-A and polyepichlorhydrin are reacted together and the product cured by diethylene triamine.
Patent GB-682562-A (GB)
Title: Fixture bolt
IPC: F16B13/06
Filed: 1950-10-04
Abstract: 682,562. Wall plugs. ROLLO, J. M. Aug. 1, 1951 [Oct. 4, 1950], No. 24229/50. Class 89 (i) Wall plugs for use with bolts 14, have an inner tubular member 1 tapped for the bolt and counterbored at 10. The main part has a slow taper 3 running without break into a quick taper 2. A series of quick pitch helical teeth 6 are rolled on the member which is preferably of steel. The plug is completed by an outer sleeve 8, preferably of lead and tapered internally to match the taper 3.
Patent GB-519522-A (GB)
Title: Improvements in the bleaching of cellulosic material
IPC: D21C9/14
Filed: 1938-08-17
Abstract: 519,522. Bleaching cellulosic materials. MATHIESON ALKALI WORKS. Aug. 17, 1938, No. 24277. Convention date, Sept. 1, 1937. [Class 15 (ii)] Cellulosic material is bleached by introducing chlorine, as gas or in aqueous solution, into an aqueous solution of a chlorite of an alkali metal or an alkaline earth metal in contact with the materials. The process may follow a partial bleaching with chlorine or a hypochlorite. In examples: (1) and (2) kraft pulp is partially bleached with chlorine, re-suspended in a solution of sodium chlorite and chlorine introduced over a period, in one case with the addition of a sodium acetate-acetic acid buffer ; (3) sulphite pulp is bleached in a bath of sodium chlorite into which chlorine is introduced and then subjected to a similar treatment in a bath, of different strength ; (4) sulphite cellulose is bleached by treatment in aqueous suspension with chlorine followed by treatment with chlorine while suspended in sodium chlorite solution; (5) to (10) cotton linters, cotton cloth and viscose rayon are bleached by treatment in a solution of sodium chlorite into which chlorine is introduced as chlorine gas or chlorine water. Specification 380,488, is referred to.
Patent GB-1477339-A (GB)
Title: Tool holding assembly for pipe cutting machines
IPC: B23D21/10
Filed: 1975-06-02
Abstract: 1477339 Cutting and bevelling pipes BRITISH GAS CORP 2 June 1975 [31 May 1974] 24282/74 Heading B3T In a pipe-cutting machine of the type having a driving ring which surrounds a stationary pipe with which it is centred and located and means for moving the drive ring around the pipe a tool carrier 1 is securely attached to the ring and which carries a slidably displaceable tool holder 2 movable radially of the pipe and ring axis, the tool holder having at least one cutting tool 4 and means in the form of a shoe or roller 6 for following the contour of the pipe and automatic feed mechanism is provided for the tool holder which is operated as the ring and tool carrier travel around the pipe. The feed mechanism is in the form of a ratchet (not shown) and wheel 17 which moves the tool holder radially incrementally as the carrier rotates around the pipe. Guide pins 14, 15 are provided between the carrier 1 and the holder 2 and the holder is urged towards the surface of the pipe by springs 10 to maintain contact between the wheel 6 and the pipe surface to ensure a constant depth of cut as the ring and carrier rotate. Using two cutting tools 4, as shown in Fig. 2, the pipe may be simultaneously grooved and bevelled. Alternatively, the pipe may merely be severed by using a single cutting off tool. The depth of cut can be gauged by the projection of the pins 14, 15 which may also have graduations thereon.
Patent GB-770777-A (GB)
Title: Improvements relating to electrical pulse generating circuit arrangements
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/53
Filed: 1954-08-20
Abstract: 770,777. Pulse generating circuits. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Aug. 16, 1955 [Aug. 20, 1954], No. 24313/54. Class 40(6) In a pulse generator' circuit a pair. of similar pulse forming networks have their output ends interconnected through a load transformer and switching means whereby a D.C. voltage is applied to the input ends of each network recurrently in turn, in each case the input ends of the opposite network being left open the pulses in the load always occurring in the same direction. The Figure shows a highvoltage pulse generator in which pulse forming networks DL1, DL2 are charged sequentially from a D.C. source across capacitor C1 by the periodic opening and closing of switches S1, S4 and S2, S3 which are rotary spark-gaps, triggered spark gaps, thyratrons or ignitrons. The switches are such that S1 and S4 are synchronized so that they are always closed or opened together and likewise S2 and S3 and when S1, S4 are closed S2, S3 are opened and vice versa. In this way a train of high voltage pulses each of the same polarity is produced across the secondary winding S of the load transformer. The possibility of "fire-through" occurring is greatly reduced as there are always two switches in series and any individual switch is only used on alternate pulses thus providing an increased period for de-ionization of the switching tubes to take place.
Patent GB-1002425-A (GB)
Title: Aqueous solutions of ammonic polymer salts
IPC: C08F22/04
Filed: 1962-06-25
Abstract: Aqueous solutions of salts of anionic group containing polymers are produced from solutions or suspensions in organic solvents immiscible with water of anionic group containing polymers or polymers which form such polymers on saponification of their hydrolysable groups, by treating the organic solvent phase with an aqueous phase containing inorganic or organic bases in the presence of 0.1-5% of surface-active agent to accelerate phase separation. The polymers may be copolymers of maleic anhydride with styrene, ethylene, a -methylstyrene, vinyl acetate, methyl vinyl ether, or copolymers of fumaric acid and styrene, or a maleic anhydride/vinyl chloride/vinyl acetate terpolymer.  The anionic group may be a carboxyl and the base may be an alkali metal or calcium hydroxide, ammonia or an amine. The organic solvent may be an aromatic or aliphatic hydrocarbon, or an ether. The surface-active agents may be C8- 20 alkyl sulphonates or sulphates, or alkylaryl sulphonates.  The polymers may be used to impregnate textiles or as thickeners.
Patent GB-1508495-A (GB)
Title: Spraying method
IPC: A01N25/04
Filed: 1975-06-06
Abstract: 1508495 Spraying crops BRITISH PETROLEUM CO Ltd 6 May 1976 [6 June 1975] 24403/75 Heading A5E Crops are sprayed using an ultra - low volume spray with a composition comprising an emulsion of water from 12-50% volume by volume of total composition of a mineral oil having a viscosity of 10-40 c.s. at 37‹C, and from 5-50% by wt. of total composition of a pesticide.
Patent GB-693581-A (GB)
Title: Packaging device
IPC: B65B13/18
Filed: 1950-10-06
Abstract: 693,581. Packaging apparatus. CELANESE CORPORATION OF AMERICA. Oct. 6, 1950 [Oct. 8, 1949], No. 24473/50. Class 94(i). Apparatus for closing cartons comprises two members adapted to engage opposite faces of a carton, the zone between said members being substantially open in all directions except towards said members so that the other faces of said carton are free from external constraint. means for forcing said members together so as to compress said carton to a closed condition, each of said members being spaced from said carton over a zone extending across the face of said carton so as to permit the passage of a securing band without releasing said members, and guide means cooperating with the compressing means for receiving the leading end of the securing band passed through one of said zones and guiding it round said carton into the other of said zones. Filled cartons, of the type comprising an inner sleeve 15 and top and bottom caps 17, 16 adapted to abut one another when the carton is closed, are fed along a roller conveyer 11 on to a conveyer section 13 where they are compressed and secured in the closed position. The section 13 comprises two spaced parallel rows of rollers 38, 41 supported on a plate 18 rotatable on supporting platforms 23 and adapted to be located thereon by a footoperated spring-pressed pin 26 engaging one of four holes 25 spaced 90 degrees apart in the periphery of the plate 18. After a carton has been delivered thereto the conveyer section 13 is rotated 90 degrees to the position shown in Fig. 1 and a hydraulically operated platen 42 is moved down to press on the top of the carton and cause the caps 16, 17 to abut. The end of a strap 56 is then introduced through a groove 57 in the under surface of the platen whence it passes through a slotted funnel guide 58 down a channelled guide 61, normally closed by a spring urged plate 62, thence down a curved lower extension 64 of the guide 61 and under the carton through a channelled guide 65 between the series of rollers on the plate 18. When completely surrounding the carton the strap is pulled tight out of the channel 61, and the ends are connected by a clip 66, the platen 42 is then raised and the section 13 rotated enabling gummed sealing tape to be applied round the carton where the caps 16, 17 abut. The section 13 is then rotated until its rollers are parallel to those of an outlet conveyer 14 along which the carton is removed.
Patent GB-1388731-A (GB)
Title: Drum for a washing machine or dryer
IPC: D06F37/04
Filed: 1972-05-24
Abstract: 1388731 Washing machines INDUSTRIE A ZANUSSI SpA 24 May 1972 [28 May 1971] 24507/72 Heading D1A [Also in Division F4] The front end wall 11, with a loading aperture 15, the rear end wall 12 and the central cylindrical part 10 of a clothes washing machine or dryer are joined together adjacent large radius deep-drawn pressed portions 16, 21 or 29 (Fig. 3) of either the end walls or cylindrical portion. The mating edges are provided with perpendicular flanges 13 or 30, 31, 33 and 35. Preferably the central portion is connected to the front wall by welding and the rear wall by rivets 25 or 34 which also hold a spider 23 or 37 secured to a support shaft 20 or 38. The lifters 14 or 39 are integrally formed in the drum parts.  The drum in Fig. 3 is intended for a dryer having apertures 26 for the ingress of heating  air.
Patent GB-375610-A (GB)
Title: Improvements in or relating to variable change speed gears
IPC: F16H37/08
Filed: 1931-09-01
Abstract: 375,610. Variable-speed gearing. WELLTON, O. G., Saltsjobaden, near Stockholm. Sept. 1, 1931, No. 24574. [Class 80 (ii).] A friction disc 12 is driven by a shaft 1 and drives sets of tiltable rollers 13, 14 which are connected through bevel gears with the sun wheels 23, 24 of a differential gear, the planet pinions 25 of which are mounted on arms 27 loose on an intermediate shaft 20, and connected through a plate clutch 29 to the driven shaft. The disc and rollers are of hard material which is elastically deformed under high pressure to give a tooth-like engagement. In a modified construction one of the sun wheels is directly connected to the shaft 1 and only one side of the disc is provided with rollers. In the construction shown the shaft 1 drives the disc 12 through spur-wheels and shafts 8. These rollers contact with each side of the disc those on the left being geared to the shaft 20 and those on the right to a sleeve 22 carrying the wheel 24. The wheel 23 is fast on the shaft 20. The rollers are caused to tilt on their spindles by means of rings 43, 46 and links 41, 44. The rings are connected to a rockable shaft 51 and hand-wheel 52 by links 47, 48, so that the rollers tilt in opposite senses and are carried by their precession in opposite radial directions across the disc 12. The wheels 23, 24 are therefore driven at different speeds and a rotation proportional to this difference is imparted to the planet wheels 25, and thence to a drum 30 and driven shaft 2. The rollers 13 are carried by a piston 31 which is forced to the right by fluid admitted to a chamber 32 by a pipe 33. The fluid is also used to operate an annular piston 36 and thus to engage the clutch 29.
Patent GB-245974-A (GB)
Abstract: 245,974. Graham, W. March 20, 1925. Washing-dollies having a metal head 1 in which tapering sockets 2, 3 are formed to receive the pegs and operating handle respectively are formed with an undulating flange 5 around the head.
Patent GB-1189255-A (GB)
Title: Process for the Preparation of the Trimer of Ruthenium Tetracarbonyl
Inventor: CHABARDES PIERRE
IPC: C07F15/00
Filed: 1968-05-23
Abstract: 1,189,255. Trimeric ruthenium tetracarbonyl. RHONE-POULENC S.A. 23 May, 1968 [24 May, 1967], No. 24731/68. Heading C1A. Trimeric ruthenium tetracarbonyl is prepared by heating carbon monoxide with a tris- (#-dionato)-ruthenium or with a carbonyl replacement compound of a tris-(#-dionato)- ruthenium to between 100‹ and 250‹ C., preferably 120‹ to 160‹ C., at normal pressure in an alcohol having a boiling point between 100‹ and 250‹ C. The tris-(#-dionato)-ruthenium may betris-(acetylacetonato )-ruthenium or tris-( 1,11- trifluoroacetylacetonato)-ruthenium. The carbonyl derivative may be the complex of the formula [(C 5 H 7 O 2 ) 2 (CO)Ru] 2 . The alcohol may be benzyl alcohol, α- or #-phenylethyl alcohol, diethylene-glycol, cyclohexylethyl alcohol or hexahydrocumic alcohol.
Patent GB-464895-A (GB)
Title: Improvement in lubricated valves
IPC: F16K5/22
Filed: 1936-09-10
Abstract: 464,895. Lubricating valves. MILLIKEN VALVE CORPORATION. Sept. 10, 1936, No. 24735. Convention date, Feb. 29. [Class 12 (iii)] In a plug valve lubricant is forced from a receptacle 28 to the surfaces of the plug through passages containing a non-return valve 34, and means is provided for releasing excessive lubricant pressure directly from the lubricant receptacle. As shown, for a valve in which a screwed plunger 30 is used for forcing lubricant from the reservoir 28, a spring-loaded relief valve 50 is provided in the plunger 30, the discharge side of the relief valve communicating by ducts 52, 54 to the outside to give a visual indication of the leakage. In a modification the screwed portion of the plunger has a groove 62, straight or helical, for the escape of lubricant which leaks past the two or three unbroken threads on its inner end. The groove 62 may be replaced by ducts inside the plunger. In another modification the plunger 76, Fig. 8, has only two or three threads, and the reservoir 70 and the passages 78, 82, leading to the plug are formed in the valve casing.
Patent GB-236427-A (GB)
Title: Improvements in steam traps
IPC: F16T1/10
Filed: 1924-10-17
Abstract: 236,427. Still & Sons, Ltd., W. M., Still E. H. and Adamson, A. G. Oct. 17, 1924. Steam-traps. - In steam-traps of the kind in which the flexible walls of capsules are adapted to serve as valves for controlling the discharge orifices, one or each flexible wall is formed with a hollow outwardly projecting marginal run having an upwardly extending flange which is fitted and soldered to a fange on the other wall. In the construction shown, the front wall d has a hollow marginal rim d<3> and the back wall d<1> a similar run d<6>, the overlapping flanges being soldered together.
Patent GB-678723-A (GB)
Title: Improvements in travelling wave tubes
IPC: H01J25/38
Filed: 1949-09-27
Abstract: 678,723. Travelling wave tubes. PHILIPS ELECTRICAL, Ltd. Sept. 27, 1949 [Sept. 30, 1948], No. 24749/49. Class 39 (i). The helix of a travelling wave tube is in two parts which are not coupled by the electron beam and the length of the first part is at least twice as long as the second part, the latter being 15 wavelengths at the most and the greater 30 wavelengths at least. The tube 1 encloses two sets of annular electrodes 5, 7 between which extend the two helices 6, 8 of lengths 35 cms. and 15 cms. respectively. U-shaped wave-guide 11 couples the ends of helix 6 and the beginning of helix 8, the wall of the tube at 16 being covered with a layer of graphite to prevent the electron beam from coupling the two helices. Input and output wave-guides 9, 10 are coupled to the extreme ends of the helix. In a modification, Fig. 2 (not shown), the two parts of the helix are in separate parallel tubes, and coupled together by a laterally extending wave-guide.
Patent GB-259376-A (GB)
Title: Improvements in and relating to dry gas meters
IPC: G01F3/22
Filed: 1925-10-06
Abstract: 259,376. Simpson, S. Oct. 6, 1925. Gas meters.-In a dry gas meter the horizontal outlet passages a leading from the centre ports band the horizontal passages d, f leading from the side ports b<1>, b<2> of the valve gratings are arranged above the valve plate h and are preferably formed of inverted trough section. The inlets e to the interiors of the diaphragms are advantageously formed by pressing out the rims g carrying the diaphragms.
Patent GB-1176476-A (GB)
Title: Rotary Cutter Heads for Mineral Mining Machines
Inventor: DAVIES BARBIE
IPC: E21C25/10
Filed: 1966-04-01
Abstract: 1,176,476. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. 31 March, 1967 [1 April, 1966; 3 June, 1966], Nos. 14639/66 and 24890/66. Heading E1F. On a rotary, mineral-mining cutter head one or more guide vanes 3 are each of such a configuration and so mounted about the hub 1 of the head as to each form with the hub a helical pocket in which mineral mined by the cutter picks of the head is received and confined radially as it is moved axially of the head to be discharged from the supported end thereof. Preferably each vane involves a strip 12a or strips 11a, 12a forming a helical vane portion spaced radial from the hub and indined towards the supported end of the hub. This vane portion may be mounted on the hub independently of the helical portion 3a as shown.
Patent GB-728429-A (GB)
Title: Improvements in mounting sparking plugs in cylinder heads
IPC: F02F1/24
Filed: 1953-09-09
Abstract: 728,429. Sparking plug mounting. BAYERISCHE MOTOREN WERKE AKT.-GES. Sept. 9, 1953 [Sept. 27, 1952], No. 24913/53. Classes 7(2) and 7(4). [Also in Group XXII] In an engine cylinder head 1 there is provided an internallythreaded sparking-plug socket 2, the head being cast around the socket and the latter having an outer surface of truncated conoidal form, the larger end of the socket being directed toward the combustion space and abutting a shoulder 4 in the head 1. An external tangential groove 6 is formed midway in the length of the socket, which groove is filled with the light alloy or soft metal of the head 1 and so prevents rotation of the socket. The smaller socket end lies flush with the outer surface of the head whilst the edge 7 of the larger end is rounded.
Patent GB-279410-A (GB)
Title: A process for hydrogenating and splitting hydrocarbons, the distillation products of various coals and their constituents, as also the coals themselves
IPC: C10G1/08
Filed: 1927-09-21
Abstract: 279,410. Spilker, A. L. H., Zerbe, C., and Ges. fur Teerverwertung. Oct. 20, 1926, [Convention date]. Addition to 277,974. Cyclic hydrocarbons.-The destructive hydrogenation of hydrocarbons, coals, and coal products is effected by the catalytic action of halogens or alkali metal (including ammonium), halogen compounds (other than iodine and iodine compounds) or of such halogens or halogen compounds in admixture with one another or with iodine or iodine compounds. Salts which facilitate the dissociation of the halogen compounds may be added. Instead of artificially prepared mixtures, crude natural mixtures or salt mixtures obtained from mother-liquors in the potash industry may be used. In an example, naphthalene is treated with hydrogen in an autoclave at 470‹ C. and 100 atmospheres pressure in presence of ammonium chloride, yielding about 70 per cent. of liquid products including degradation products down to benzene; coal tar pitch is hydrogenated in a similar manner in presence of potassium bromide and iron alum, yielding about 70 per cent. of liquid products boiling mostly between 200‹ and 360‹ C. and in part below and above that range; coal from seams of recent formation is hydrogenated in presence of potassium iodide, potassium bromide, and potassium or ammonium chloride; and a crude distillate from brown-coal tar or lowtemperature coal tar is hydrogenated in presence) of potassium iodide, ammonium chloride, and ferric chloride at 200-500‹ C., products of the benzine type being obtained. Specification 253,507. [Class 32, Distilling &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) is not limited to alkali-metal compounds. This subject-matter does not appear in the Specification as accepted.
Patent GB-615949-A (GB)
Title: Improvements in or relating to packing cases
IPC: B65D6/16
Filed: 1946-08-21
Abstract: 615,949. Boxes. BROWNLEE & CO., Ltd., and ARMSTRONG, L. Aug. 21, 1946, No. 24979. [Class 18] A collapsable packing case comprises two closed frames. 1, 2, forming the top and bottom of the case, between which erected side and end walls 3, 4 are enclosed, the frames being held together by freely mounted screws 12 in the top frame 1 engaging in screwed columns 9 attached to the bottom frame 2. The columns 9 are pivoted in brackets 7 secured to the frame 2, the brackets each having a screwed hole 8 which is in alignment with the screwed bore of the respective column 9 when this is vertical. The bases of the columns 9 are forked to clear the holes 8 when the columns are horizontal. The end walls 4 are cut away at the corners to fit in the frames and have battens 6 secured between the cut-away portions 5 to form corner posts between the frames. In collapsing the case, the screws 12 are unscrewed from the columns 9 and the walls 3, 4 laid within the bottom frame. The columns 9 are folded inwardly and the frames 1, 2 are secured together by the screws 12 being screwed into the hoies 8. The brackets 7 are accommodated in recesses in the top frame 1. The bottom or top may be reinforced by transverse battens 14. The screws 12 are not withdrawable from the top frame.