baber/WOPTO huggingface dataset:
Patent GB-994606-A (GB)
Title: Device for closing and sealing bags
IPC: B65B51/02
Filed: 1963-09-18
Abstract: 994,606. Closing filled bags. WEST VIRGINIA PULP & PAPER CO. Sept. 18, 1963 [Sept. 25, 1962], No. 36715/63. Heading B8C. A glue applying head 23, Fig. 1, biased about a pivot 26, Fig. 3, to apply glue to the flattened mouths of bags 22, Fig. 1, before they are folded over, is fed with glue only while a bag is passing the head. The bag mouths are flattened by conveyers 39, 39<SP>1</SP> moving at the same speed as the conveyer 36 carrying the bag, and are carried through a slot 12 between spaced horizontal plates 10, 10<SP>1</SP>. In the form shown the glue feed is controlled through a micro-switch and a pneumatic valve from a sensing arm 37 which is of copper tubing so that it can be adjusted by bending. The top of a bag 22 carried on the conveyer 36 passes between guides 20, 20<SP>1</SP> adjustable under the action of a spring 43, into the slot 12 and as the bag advances its leading edge contacts the arm 37 causing a valve 24 to open and permit flow of glue to the applicator head 23. When the trailing edge of the bag releases the arm 37 valve 24 is caused to close and the flow of glue ceases. A plow 38 folds part of the bag top through 180 degrees on to the glue and rolls 40, 40<SP>1</SP> press the folded portion into place and spread the glue. Further rolls 60, 60<SP>1</SP> which may be stepped or covered with an elastically compressible material to allow for differences in thickness at the bag top complete the sealing. The pressure between rolls 40 and 40<SP>1</SP>, and 60 and 60<SP>1</SP> is adjustable by nuts 62 and 56 on rods 19 and 18 respectively. The glue used is preferably polyvinyl acetate, and the bag top may be heated by rollers or infra-red heaters before entering the device to improve the effectiveness of the adhesive.
Patent GB-1389747-A (GB)
Title: Container
IPC: B65D43/10
Filed: 1972-08-07
Abstract: 1389747 Containers and lids U WAGNER 7 Aug 1972 [6 Aug 1971] 36858/72 Headings B8P and B8T A lidded container, particularly for serving food on aircraft comprises an aluminium base 10<SP>1</SP> having a peripheral rim 17<SP>1</SP> on which seats a lid 11 having clips 22<SP>1</SP> engaging over the rim. By bending up the clip as shown at 30 one end of the lid is released and the lid removed; if the two longitudinal edges of the lid have turned under flanges 33 the lid may be removed by a sliding motion after releasing one of the clips. In another embodiment, the lid may have a downwardly extending extension (25, Fig. 3,) embracing the rim of the base portion. Again, the lid may terminate at the inner side of an upwardly facing circular bead on the edge of the rim. The lid may be provided with notches 40 so that by means of the clips 22<SP>1</SP> the lid can be curved upwardly about a fold line (42, Fig. 6), across the lid and extending between the notches prior to sliding off the lid. Both the base and lid portions can be varnished or coated with a plastics and may carry instructions or stampings.
Patent GB-832639-A (GB)
Title: Process for separation of gaseous mixtures
IPC: C07C7/10
Filed: 1956-12-03
Abstract: Normally gaseous mixtures in liquid form are contacted with a selective solvent and subsequently the stream from which selected components have been removed and the solvent stream rich in said components are recovered.  The process is particularly applicable to the separation of acetylenic hydrocarbons from gaseous mixtures but amongst the components of gaseous mixtures which are treated are acetylene, methyl acetylene, ethyl acetylene, vinyl acetylene, diacetylene, methane, ethane, propane, ethylene, propylene, butylene, butadiene, and various light hydrocarbon mixtures containing olefines and paraffins.  Selective solvents exemplified are dimethyl formamide, diethyl acetamide, diethyl formamide, dimethyl sulphoxide, acetone and acetic anhydride.ALSO:Normally gaseous mixtures in liquid form are contacted with a selective solvent and subsequently the stream from which selected components have been removed and the solvent stream rich in said components are recovered.  The process is particularly applicable to the separation of acetylenic hydrocarbons from gaseous mixtures while amongst the components of gaseous mixtures which are treated are acetylene, methyl acetylene, ethyl acetylene, vinyl acetylene, diacetylene, methane, ethane, propane, ethylene, propylene, butylene, butadiene, and various light hydrocarbon mixtures containing olefines and paraffins.  Selective solvents which may be used in processes according to the invention comprise dimethyl formamide, diethyl acetamide, diethyl formamide, dimethyl sulphoxide, acetone and acetic anhydride.
Patent GB-1109657-A (GB)
Title: Magnet device for cathode ray tube
IPC: H01J29/70
Filed: 1965-08-27
Abstract: 1,109,657. Colour television tubes. RADIO CORPORATION OF AMERICA. 27 Aug., 1965 [31 Aug., 1964], No. 37002/65. Heading H1D. A colour purity magnet for a three-gun shadow-mask colour television tube comprises a ring 10 having a circular outer edge 10e and an elliptical inner edge 1Oi, the ring being magnetized in the direction of the minor axis of the ellipse. The ring is thereby readily magnetizable to produce a uniform field. The ring is supported on a non-magnetic, e.g. plastic, washer having circular inner and outer edges and crescent-shaped raised portions 16a, 16b and the ring is provided with tabs 12a, 12b for rotation, the tabs having different shapes for indexing purposes. In use a pair of ring magnet assemblies are mounted in juxtaposition on the neck of the tube.
Patent GB-1061749-A (GB)
Title: Liquid screening apparatus
Inventor: BROADBENT EDWARD THEODORE
IPC: E02B8/02
Filed: 1964-09-10
Abstract: 1,061,749. Filter. LONGWOOD ENGINEERING CO. Ltd. Sept. 8, 1965 [Sept. 10, 1964], No. 37005/64. Heading B1D. Rakes 16 for removing filter cake from filter grid 2 are transversely mounted across pairs of links 14, which pairs are pivoted with other pairs of links so that the pivots engage in notches 13 of pairs of rotating discs 12. Flexure of the links is limited by members 18, 19, 20 and 21, and scraper 22 engages the rakes to deposit the cake in the adjoining trough.
Patent GB-323352-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L33/01
Filed: 1928-12-15
Abstract: 323,352. Leyland & Birmingham Rubber Co., Ltd., and Butcher, H. J. Dec. 15, 1928. Joints with longitudinal pressure and with yielding outer part compressed.-In a connection between an armoured hose pipe C, having an unarmoured end, and a coupling member H of the kind in which the hose and coupling are drawn together by an external sleeve A, an internallyflared ring F embracing the end of the hose is provided to compress the same upon the curved base of th espigot G of the coupling member. The sleeve A is formed in two parts, held together by bolts D<1>, and is internally threaded to engage the armouring B of the hose, while longitudinal movement thereof is secured by bolts E<1> threaded through radial flanges E, J on the sleeve and coupling member respectively. The invention is also applicable to the connection of two lengths of hose, in which case the coupling member is provided with a spigot G at both ends or two interconnectible coupling members are used.
Patent GB-1506157-A (GB)
Title: Energy absorbing devices
IPC: F16F7/12
Filed: 1975-11-26
Abstract: 1506157 Absorbing energy by extrusion IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 26 Nov 1975 [27 Aug 1974] 37320/74 Heading F2S An energy absorbing device comprises a tubular container 1 with a first open end 2 and a second end 3 and containing an annular slug 9 of extrudable material, which is extruded through open end 2 by a die 7 attached to a ram 6 upon impact loading of the device in the direction of arrow 11; the material of slug 9 is such that the maximum hoop strain measured on the external surface of the container 1 is not more than the 70% of the hoop strain which would exist if the material were a Newtonian fluid under conditions of the same axial load, and the device is also characterized in that the extrusion ratio is in the range 1À1 : 1 to 1À8 to 1. The material of the slug 9 may be a hard polypropylene, a glass, a polycarbonate or a polysulphone. Prior to extrusion there is an annular space 10 between the outer surface of the slug 9 and the inner wall of container 1 which space 10 is filled by expansion of the slug 9 when the load is initially applied.
Patent GB-1055732-A (GB)
Title: Improvements in machines for freezing liquids
IPC: F25C1/04
Filed: 1963-09-23
Abstract: 1,055,732. Ice-making. CORNELIUS CO. Sept. 23, 1963 [June 13, 1963], No. 37358/63. Heading F4H. Ice-making apparatus comprises a set of annularly arranged refrigerated fins 13, a sump 15 below the fins and a pump 14 for withdrawing water from the sump and spraying it radially outwardly into contact with the fins. The upper edges of the fins are scalloped to provide good physical contact with refrigerating tubes 20 and, together with said tubes are enclosed in insulating material 21 supported on a plate 24 through which the fins 13 depend. The ice-blocks 34 formed on the fins are harvested by passing a heating medium through tubes 20 so that the blocks fall on to an annular deflector 17 which directs the blocks through the centre of an annular drip tray 16 and into a storage chamber 12. The upper edge 39 of the inner wall of drip tray 16 is spaced inwardly from and below the inner edge 39 of deflector 17 to define an annular slot 40 through which water falling on to the deflector 17 drains to drip tray 16. A conduit 42 connects the latter to an aperture 41 in the sump 15 to supply water thereto, conduit 42 also serving to support sump 15. The drip tray 16 is supplied with water at the beginning of each cycle through a connection at the rear of the tray (Fig. 2, not shown), an overflow conduit 50 being provided to limit the amount of water so supplied to a predetermined value. In a modification (Fig. 3, not shown) deflector 17 is slotted and a flexible skirt is suspended from the outer periphery 44 of the sump 15 to prevent spray from passing to the storage chamber 12 while permitting the passage of iceblocks.
Patent GB-1044610-A (GB)
Title: Improvements relating to the copolymerisation of vinyl acetate
IPC: C08F222/14
Filed: 1965-09-01
Abstract: In a modification of the process of the parent Specification, vinyl acetate is copolymerized with a fumaric, maleic or acrylic ester in water containing an anionic emulsifying agent and a peroxy catalyst wherein the total cation concentration exclusive of cations from the emulsifying agent is 15-40 millimoles/litre and the emulsifying agent concentration is 35-60 millimoles/litre.  Specified ester comonomers are dibutyl maleate, 2-ethylhexyl acrylate, butyl acrylate and dibutyl fumarate. Specified catalysts are sodium persulphate, ammonium persulphate and alkali metal perborates. Specified emulsifiurs are sodium dodecylbenzene sulphonate and sodium lauryl sulphate. Buffers such as sodium bicarbonate, sodium acetate and sodium phosphate may be used.  The monomers may be added during polymerization.  In examples vinyl acetate and dibutyl maleate are copolymerized in the presence of potassium persulphate, sodium dodecylbenzene sulphonate and sodium bicarbonate.
Patent GB-1508256-A (GB)
Title: Cold water storage tank
IPC: E03B11/02
Filed: 1976-09-09
Abstract: 1508256 Domestic water tank PROGRESS PLASTICS (WELDING & FABRICATORS) Ltd 9 Sept 1976 37494/76 Heading E1T A cylindrical domestic water cistern is higher than 1m and has an integrally formed smaller expansion tank inside it in the upper region of the cistern. The expansion tank is formed by a partition wall 22 in the cistern and has an upper opening 21 occupying part of the upper opening of the cistern. The cistern may be formed of polyethylene and may have a base provided with a separate drip tray.
Patent GB-364303-A (GB)
Title: Improvements in or relating to reversing regenerative furnaces
IPC: F23D99/00
Filed: 1930-12-12
Abstract: 364,303. Gas-fired furnaces. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd. and SOWARD, H.W., Victoria Station House, Victoria Street, London. Dec. 12, 1930, No. 37543. [Class 51 (i).] In a reversible regenerative o p e n hearth furnace gas is supplied through a central port 105 and air is admitted in the form of converging streams through ports 106, 107 arranged at the sides of the gas port and through a port 108 arranged above the gas port. The gas and air are delivered into a mixing-chamber 104 the side walls of which converge towards the hearth or they may be parallel. Specification 349,745 is referred to.
Patent GB-1080813-A (GB)
Title: Clutch
IPC: F16D13/75
Filed: 1964-09-15
Abstract: 1,080,813. Friction clutches and control. BORG-WARNER CORPORATION. Sept. 15, 1964 [Sept. 27, 1963], No. 37696/64. Headings F2C and F2L. A motor vehicle friction clutch has stationary transverse clutch-engaging springs 52 anchored at one end 54 within the clutch housing 1 and pulling a lever 60, pivoted at 70, on the clutch housing, and carrying a roller 72 engaging a transfer lever 46 pivoted on a fixed fulcrum 78 and acting on a fork lever 48, also fulcrumed at 78 and acting through a thrust bearing 40, radial levers 26 carried by the rotating clutch cover plate 22 and struts 30 to apply engaging force to the pressure plate 28. Clutch disengagement is effected by a pedal linkage 50 or cable engaging the lever 60 through a lostmotion connection 66-68. Automatic adjustment of the transfer lever 46 relative to the fork lever 48 for wear of the centre mush-plate linings 39a, 39b, is provided by limiting the disengaging movement of the fork lever 48 and sprilig-biasing a preferably stepped wedge 96 between the levers 46, 48. The fork lever 48 has an arm 102 concentric with its fulcrum 78 and carrying a curved plate 104 which is engageable with a fixed stop 106 to limit its rightward movement. A locking plate 108 and a spring (112) act to allow sliding movement between the plate 104 and the arm 102 in one relative direction only. Due to wear taking place at the friction linings, each time the clutch is engaged the arm 102 on lever 48 is moved further rightwards, thereby moving relatively to the rightward-movement-limited plate 104. The return clutch disengaging travel of the fork lever 48 is limited by abutment of the locking plate 108 with the fixed stop 106, and therefore as wear proceeds a condition of disengaging over-travel develops between the levers 46, 48. When approximately 0.010 inch lining wear occurs, the overtravel is sufficient to allow the stepped wedge 96 to be sprung further between the levers 46, 48 to restore the original relative position between the lever 60 and the linkage 50 to re-establish the original clutch pedal play. The wedge 96 may be replaced by a manually adjusted screw in lever 48 abutting lever 46 (Fig. 5, not shown). The whole assembly of levers 60-18 is preferably mounted as a package on a single base 64. The pressure plate 28 is biased to a disengaged position by resilient torque sustaining straps. The Specification includes tabulated data covering spring loads, lever movements, and comparisons with those of conventional rotating-spring clutches.
Patent GB-1161681-A (GB)
Title: Improvements in or relating to Injection Moulding Machines
Inventor: ELDRED RAYMOND DEREK EDWIN
IPC: B29C45/28
Filed: 1965-09-04
Abstract: 1,161,681. Rotary valve control of teed in injection moulding machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. 5 Sept., 1966 [4 Sept., 1965], No. 37900/65. Heading B5A. A rotary valve member mounted in a crossmember controls the flow of moulding material in an injection moulding machine. A portion 78 of a horizontal, rotatable shaft 72 comprises diametrically opposed portions of reduced area 80 connected by two opposed grooves 81 which each subtend an angle of less than 180 degrees at the axis of the shaft 72. A bore 40 in which the shaft 72 seats intersects at right-angles a portion 50 of a vertical sprue channel 38, the axial length of portion 78 equalling the diameter of the channel portion 50. The shaft 72, and particularly the portion 78 thereof, acts as a valve for the channel 38, through which plasticized P.V.C. is injected into a mould (not shown) which forms a shoe sole. P.V.C. flows into the mould when the portions 80 of the shaft are aligned with the channel portion 50, while flow of P.V.C. is prevented when the shaft is rotated through 45 degrees (Fig. 4, not shown), this rotation being effected by an hydraulic piston 92 acting on an end of the shaft 72 remote from the channel through a crosshead block (88), an arm 82 and a tapered pin 84.
Patent GB-858790-A (GB)
Title: Improvements in or relating to moulding cores
IPC: B28B21/20
Filed: 1958-11-25
Abstract: 858,790. Moulding asbestos cement pipes. MARCHIOLI, G., and GREMIGNI, G. Nov. 25, 1958 [Dec. 6, 1957(3)], No. 37910/58. Addition to 815,372. Class 87(2). The inflatable core of the parent Specification is modified by the end of the yieldable ring 8 having a closed end 11, whereby the ring completely closes the end of the inflatable member 1. The inside surface of the end may be convex, as shown, and there may be airescape grooves 12 in the inside cylindrical surface. In a modification the end 1<SP>1</SP> of the inflatable core is reduced in diameter and the outside diameter of the yieldable ring 21 is the same as that of the inflatable core 1. Another yieldable ring 8 may surround the ring 21, and may have a closed end, as in Fig. 10, which shows a core for moulding a three-branched pipe. The rings 8 and 21 may be in one unit. There may be internal strengthening ribs 25 in the member 1 in which steel wire may be embedded.
Patent GB-924645-A (GB)
Title: Improvements in the production of vinyl chloride polymers
Inventor: PERRINS LYLE EUGENE
IPC: B01D19/04
Filed: 1960-11-04
Abstract: Vinyl chloride polymers containing free carboxyl groups are prepared by copolymerizing vinyl chloride and a monoethylenically unsaturated carboxylic acid, or an anhydride or acid chloride of such an acid, or a partial ester of a monoethylenically unsaturated polycarboxylic acid, alone or together with other copolymerizable monomers in the presence of a dispersing agent and a polymerization catalyst and in an aqueous medium containing from 5 to 25% by weight of a water-miscible organic solvent or mixture of solvents based on the weight of water.  Suitable monoethylenically unsaturated carboxylic acids include maleic, fumaric, acrylic, methacrylic, crotonic, itaconic and aconitic acids and the proportion of said acid, acid anhydride, acid chloride or partial ester is preferably between 0,3% and 10% of the total weight of polymerizable compounds employed. Suitable water-miscible organic solvents are low molecular weight alcohols, glycols, esters of low molecular weight, e.g. methyl acetate, and ketones, e.g. acetone methyl ethyl ketone.  Mixtures of two or more of these solvents may be used and other organic solvents which are normally substantially immiscible with water may also be added in small quantities to the water-miscible solvent or solvents. Dispersion agents mentioned are gelatine, polyvinyl alcohol, starch, methyl cellulose, glycol cellulose and other high molecular weight water-soluble polymers such as polyalkylene oxides.  Polymerization catalysts which may be used include organic peroxides and hydroperoxides, e.g. acetyl peroxide, tertiary butyl peroxide, lauroyl peroxide and succinyl peroxide, hyponitrous esters, e.g. benzyl hyponitrile and azo compounds having molecules containing the group >C-N=N-C< in which the two carbon atoms are non-aromatic in character, e.g. a , a 1-bis-(a , g -dimethyl valeronitrile) and azo di-isobutyronitrile.  The catalyst may be added to the monomeric materials as a solution in an organic solvent.  Chain-transfer agents, e.g. chloroform and tetrachloroethylene, may be added. Small proportions of other polymerizable compounds may be included, e.g. vinyl esters of saturated monocarboxylic acids, acrylonitrile and methacrylonitrile; the proportion employed should not exceed 40% of the total weight of polymerizable compounds employed.  The products of the invention may be used as heat-sealable coatings on aluminium foil, lacquers for beer cans and for coating glass and wood surfaces.
Patent GB-381820-A (GB)
Abstract: 381,820. Interrupters. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 18, 1932, No. 4778. Convention date, June 1, 1931. [Class 38 (v).] To prevent oil reaching the contacts of an interrupter the contacts d, g are mounted in a separate compartment having a gastight flexible wall s of leather, oiled canvas or other non-resilient material through which movement is transmitted. In the form shown the end of the rocking lever f which carries the contact g is fixed to the wall s. In other forms a camoperated ram carrying the moving contact may pass through the wall. The compartment communicates with the outer air by a passage z passing through a screw h which fixes the compartment to the baseplate a and the movement of the flexible wall s causes fresh air to enter the compartment.
Patent GB-1262606-A (GB)
Title: Clips for retaining shafts in knob cavities
Inventor: LUNDERGAN ROBERT GRAHAM
IPC: F16B2/24
Filed: 1970-08-10
Abstract: 1,262,606. Securing knobs on shafts. AMP. Inc. 10 Aug., 1970 [4 Sept., 1969], No. 38410/70. Heading F2U. A knob 11 is secured on the D-shaped end of a shaft 12 by a spring clip 10, the base portion 16 of which is U-sectioned opening out into opposed D-shaped wing portions 18, the clip tapering axially so that it is deformed into frictional engagement with the shaft and knob when these members are brought into engagement. The base portion 16 is formed with a sharp locking tab 20 which penetrates the wall of the knob cavity.
Patent GB-940841-A (GB)
Title: Improvements in or relating to spray guns
IPC: B05B7/12
Filed: 1959-11-13
Abstract: 940,841. Spray-producers. B. AGOSTI, and P. ORLONDI, [trading as OMAC OFFICINE MECCANICHE AEREOGRAFI COMPRESSORI]. Nov. 13, 1959 [Dec. 5, 1958], No. 38515/59. Heading B2F. Two liquids, e.g. paint and a catalyst, are fed separately from tanks 8 and 9 to the outlet of a spray gun where they are atomized and mixed by pressure air fed to a regulator distributer 5 and flowing through channels 3b converging towards a central outlet; a part of the air from the distributer passes to passages 3a, 3a<SP>1</SP> whereby the spray cone from the outlet is widened. Paint passes through a tube 10 to a central nozzle 1 controlled by a needle valve 11, and a catalyst flows through a tube 7 and a regulator 6 to channels 1a between the nozzle 1 and a coaxial nozzle 2. The tanks are interconnected by a bayonet joint. The catalyst may be fed from a tank mounted above the gun and the paint may be fed to the gun under pressure. In a further embodiment, the pressure air is fed to the channels 1a, and the catalyst to the channels 3b.
Patent GB-1130890-A (GB)
Title: A tool on railway track machines for packing or tamping the permanent way broken stone ballast
IPC: E01B27/16
Filed: 1966-08-30
Abstract: 1,130,890. Ballast tamping tools. F. PLASSER. 30 Aug., 1966 [2 Sept., 1965], No. 38603/66. Heading E1G. The blade of a ballast tamping tool is of non-linear section at right angles to the shank. The blade may be corrugated, with the size of the undulations corresponding to the mean surface curvature of the ballast, the shank being between two convexities and on the opposite side of the blade to the direction of thrust. The blade, and shank, may be tapered towards the bottom. When used with a machine having two blades working between and packing two sleepers, the blades are staggered such that a convex part of one is opposite a concave part of the other.