baber/WOPTO huggingface dataset:
Patent GB-962699-A (GB)
Title: Polymerization process
IPC: C08F2/24
Filed: 1962-05-30
Abstract: Polymerizable compounds containing at least one CH2=C< group are polymerized by emulsifying them to form an emulsion of the water-in-oil type by means of a graft copolymer obtained by grafting a vinylidene monomer on to a polyalkylene oxide or derivative thereof containing polyethylene oxide units and having a molecular weight of at least 500, the reversed emulsion containing, based on the total amount of monomer, from 5 to 4,000% of water and from 0.1 to 5% of a free radical-forming substance, e.g. azoisobutyronitrile, benzoyl, cyclohexanone and di-tert. butyl peroxides, cumene, p-menthane and tert. butyl hydroperoxides, percarbonates and alkali metal persulphates, which may be used in combination with appropriate activators such as dimethyl-p-toluidine, diethanolamine, triethylenetetramine, triethylamine, cobalt naphthenate, pyrosulphites and formaldehyde sulphoxylate.  Polymerizable monomers specified are styrene, alkyl styrenes, divinyl benzene, trivinyl benzene, vinyl acetate and propionate, C1-C6 alkyl and cycloalkyl acrylates and methacrylates acrylonitrile, triallyl cyanurate, glycol dimethacrylate, triacrylyl-s-perhydrotriazine, half-esters of maleic and fumaric acids and polyesters derived from unsaturated acids, e.g. maleic and fumaric acids, and polyhydric alcohols, e.g. ethylene, diethylene and triethylene glycols, 1,2- and 1,3-propanediols, 2,2-dimethylpropanediol, 1,3-butanediol, 1,1,1-trimethylol propane and glycerine.  Specified graft copolymers are those obtained by polymerizing vinyl acetate on to polyethylene oxides of varying molecular weights, a polyethylene oxide modified with maleic anhydride and a tetrahydrofuran/ethylene oxide copolymer, by polymerizing ethyl acrylate or methyl methacrylate on to polyethylene oxide, and by polymerizing a mixture of vinyl acetate and propionate on to a maleic anhydride-modified polyalkylene oxide.  The products of the polymerization contain entrapped water, which may be removed, either during or after polymerization, to yield porous materials. The examples describe the polymerization of (a) styrene and mixtures thereof with divinyl benzene, monocyclohexyl maleate, a maleic acid-glycol polyester, a maleic anhydride-phthalic anhydride-butanediol-1,3-polyester and a mixture of methyl acrylate and triallyl cyanurate, (b) methyl methacrylate and mixtures thereof with glycol dimethacrylate and ethyl acrylate, (c) cyclohexyl methacrylate, (d) vinyl propionate, and (e) acrylonitrile. Specifications 922,457 and 928,621 are referred to.
Patent GB-531335-A (GB)
Title: Improvements in and relating to wary knitted fabrics provided with rubber warp threads froming meshes in spots
IPC: D04B21/00
Filed: 1939-07-18
Abstract: 531,335. Knitted fabric. SCHONFELD, P. July 18, 1939, No. 20865. Convention date, July 23, 1938. [Class 74 (ii)] Rubber threads are worked in a ground warp fabric to form spots by placing them on one needle in one course 3 and on two needles in the following course 4, in the manner shown.
Patent GB-1206885-A (GB)
Title: Improvements in chromatographic apparatus
Inventor: HALL JOSEPH EDWARD
IPC: G01N30/24
Filed: 1968-05-02
Abstract: 1,206,885. Sample introducing devices for chromatographic columns. PYE Ltd. 16 April, 1969 [2 May, 1968], No. 20921/68. Heading B1L. Samples contained in slugs 1 are introduced to column 6 by means of solenoid actuated plunger 7 which pushes the bottom slug through tube 8 so that it falls into heated region 5 through which carrier gas, introduced through inlet 11, passes continuously. On falling into region 5, the sample slug 1 comes to rest on a solenoid actuated piston (13) (see Fig. 2, not shown) at its lowest point of travel. When the sample has entirely eluted from slug 1, solenoid (12) is actuated, causing piston (13) and empty slug (1) to move sharply upwards. The piston is restrained by abutment (13a), but empty slug 1 travels along tube 15 into receiver 16. The cycle may then be repeated. Slubs 1, which are suitably of glass but may also be of a magnetic metal or glass coated metal, may be open (see Fig. 3, not shown), in which case a solid sample will be coated on the walls or solid or liquid materials introduced in a sealed plastics envelope; alternatively they may be closed in which case the slug has a weakened portion which shatters in the fall into region 5 (see Fig. 4, not shown). The system is suitable either for manual operation, or for automatic operation controlled by a control unit or a computer program.
Patent GB-843577-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B11/00
Filed: 1958-06-30
Abstract: 843,577. Agricultural implements. DALON, J. W. M. DE R. June 30, 1958, No. 20924/58. Class 6(1). A digging machine comprises a number of spades 3 mounted on a rotatable member such as a wheel or crankshaft 1 in such a manner that in operation the spade is repeatedly brought into a digging position and through a digging operation, each spade being mounted for rotation to turn over earth lifted by each spade and means for turning each spade. As shown the spades are provided with levers 4 which pass through sleeves 5 pivotally supported at 7 for movement about an axis parallel to the axis of the crankshaft 1. The means for turning each spade comprises a bearing mounted on each lever 4 which engages in a groove in the sleeve 5 the groove being partially helical to turn the spade 3. In a modification, the spades are mounted on a wheel and are turned by cams mounted on the wheel, scrapers for the spades being provided. The machine is driven by gearing from a tractor.
Patent GB-956136-A (GB)
Title: Improved low-loading road vehicle
IPC: A61G3/00
Filed: 1959-06-18
Abstract: 956,136. Adjusting vehicle height; vehicle frames. P. W. BOTHWELL. June 16, 1960 [June 18, 1959], No. 20933/59. Heading B7D. A motor road vehicle has a chassis 1 or frame which may be lowered as a whole on to the ground for loading and unloading. Inverted U-form members 2 on the chassis form top mounting points of suspension units which are connected at their lower ends to wheel supports mounted on transverse parallel wishbones 8 at the front and tailing links 7 at the rear. Alternatively, trailing links are used for both the front and rear suspensions. Each suspension unit, Fig. 2, comprises a telescoping rod 5 and tube 4, which may incorporate a telescopic shock absorber, having mountings for a helical suspension spring 3 and an hydraulic cylinder 6 the piston of which is attached to the end of tube 4. The vehicle is raised by introducing pressure fluid to the upper ends of the cylinders 6. For holding the suspension units in the fully extended position when the vehicle is in motion toggle linkages 14, 15 are provided controlled by rods 17 actuated by the driver with a hand lever which is preferably interlocked with the engine or hand brake to prevent lowering of the chassis when the vehicle is in motion. Pads 13, Fig. 2, are provided below the chassis to support the body when lowered to the ground. The cylinder 6 may be modified so that the pressure fluid above the piston provides additional damping when the vehicle is in motion.
Patent GB-1111071-A (GB)
Title: Liquid level gauge for float-controlled indicating apparatus
IPC: G01F23/34
Filed: 1965-05-19
Abstract: 1,111,071. Liquid level indication. AMPHENOL CORPORATION. May 19, 1965 [June 6, 1964], No. 21182/65. Heading G1H. In a liquid level gauge insertable into an opening in a container, such as a vehicle fuel tank, a float 18, arm 17 and pivotal spindle 16 are formed as a single-piece construction, preferably of a synthetic plastics material. The arm 17 carries a contact stud 23b which sweeps over a wire resistor 22 connected to an indicating instrument.
Patent GB-1043546-A (GB)
Title: A device for cleaning surfaces such as those of shop windows and motor vehicles
IPC: A47L1/05
Filed: 1963-05-28
Abstract: 1,043,546. Window cleaning devices; power driven reservoir cleaning devices. J. Y. YOUNG. Aug. 27, 1964 [May 28, 1963], No. 21192/63. Headings A4F and A4K. [Also in Division B7] A window cleaning device comprises a polyethylene casing 1 having a carrying handle 2 and containing an electric motor (not shown) for driving through a flexible shaft 4, extending through a tubular extension 5 of the casing 1, a disc 6 for receiving a cleaning pad or brush, and secured to the casing 1 a container 7 for cleaning liquid which is forced therefrom when required, by a finger operated pump 9, through a tube 11 on to the surface to be cleaned. The apparatus may be modified for incorporation in a windscreen wiping mechanism.
Patent GB-479058-A (GB)
Title: Improvements in or relating to ice-breaker vessels
IPC: B63H23/00
Filed: 1936-07-31
Abstract: 479,058. Propeller gear for ships. SULZER FRERES SOC. ANON. July 31, 1936, No. 21197. Convention date, Jan. 23. [Class 114] A ship particularly designed for ice-breaking is provided with a screw propeller d at the bow and two stern propellers c<1>, c<2>. These are driven from internalcombustion engines e<1>, e<2> operating through mechanical gears f<1>, f<2>, m and hydraulic couplings o<1>, o<2> and h<1>, h<2>. The arrangement is such that the power can be divided between the three propellers or applied wholly to the after propellers, whilst the forward propeller can be driven alone either for forward or reverse running.
Patent GB-925876-A (GB)
Title: Method of preparing pigments
IPC: C01G23/07
Filed: 1959-06-22
Abstract: Pigmentary titanium dioxide is prepared by reacting an oxygen-containing gas with titanium tetrachloride in the vapour phase, in the presence of white non-discolouring metal oxide solids having an average particle size below 0,15 microns. Suitable metal oxide solids include oxides of aluminium, silicon, titanium, zinc, boron, zirconium, antimony, and tin, either alone or mixed.  They may be prepared from the corresponding halides, for example by the vapour phase oxidation of the halide with excess of an oxygen-containing gas, and then introduced <PICT:0925876/III/1> <PICT:0925876/III/2> suspended in an oxygen-containing gas into the titanium dioxide reaction zone, preferably within 8 seconds, especially between 0,1 and 3 seconds, of formation.  Alternatively, the solids may be suspended in an inert atmosphere, for example nitrogen.  The suspensions may be heated prior to introduction.  The amount of metal oxide employed is generally from 0,1 to 10 mole per cent, based on the titanium tetrachloride, although up to 20 mole per cent may be employed.  Chlorine may be added to the reaction zone in an amount up to 1 mole per mole of titanium tetrachloride, preferably below 0,75 moles per mole, especially between 0,05 and 0,3 moles per mole.  The reactants may be preheated to between 500 DEG C. and 1200 DEG C., and the reaction may be carried out between 700 DEG C. and 1500 DEG C. The mole ratio of titanium tetrachloride to oxygen fed to the reaction zone may be between 2:1 and 1:10, and the reaction carried out at a pressure between 0,5 and 3,0 atmospheres.  In an example (Fig. 1), aluminium trichloride vapour is introduced via tube 3, and excess oxygen is introduced into space 9 via tube 2, to form alumina and chlorine. Titanium tetrachloride vapour is introduced via tube 1, and mixes with the oxygen containing chlorine and alumina in the reaction space 8, which is heated by heater 4.  Fig. 2 illustrates an alternative apparatus.
Patent GB-1003380-A (GB)
Title: Separation of mixtures of organic compounds
IPC: C10G73/24
Filed: 1964-05-22
Abstract: Mixtures which contain straight chain hydrocarbons, especially paraffins, in addition to other hydrocarbons, for example straight-run mineral oil fractions, in particular kerosine, gas oils, and high-boiling distillates having a high wax content and obtained by vacuum distillation, and also catalytically cracked cycle oils and raffinates obtained when such oils are treated with a solvent selective for aromatics, such as furfural, are separated by adduct formation with urea or thiourea in aqueous solution, in a process wherein the aqueous solution is atomized below the surface of the mixture which has been diluted with a diluent, the atomizer being heated to a temperature higher than the crystallization temperature of the adduct-former, and at the same time stirring the mixture. Suitable diluents include chlorinated hydrocarbons, such as dichloromethane, and light hydrocarbons, such as butane or pentane. Specification 671,457, 822,549 and 929,553 are referred to.
Patent GB-777189-A (GB)
Title: Improvements in or relating to railway chair pads
Inventor: WILSON GEORGE ARTHUR
IPC: E01B9/68
Filed: 1955-07-25
Abstract: 777,189. Stacking. FABREEKA PRODUCTS CO. July 25,1955, No. 21406/55. Class 94(1). [Also in Group XXX] A rail chair pad 10 comprises a layer 11 of resilient material, a sleeper contacting bottom layer 12 of a material having adhesive characteristics approximating those of unmodified Trinidad asphalt and a top layer 13 of material which prevents adhesion to the bottom layer 12 of the next pad above it in a stack of pads but which does not appreciably reduce the normal adhesiveness of the bottom layer 12. The upper layer 13 may be manufactured from a silicone, paraffin wax or the like.
Patent GB-1341121-A (GB)
Title: Soft gelatin capsule containing a fill of high water content
IPC: A61K9/48
Filed: 1971-04-19
Abstract: 1341121 Medical and like capsules R P SCHERER CORP 19 April 1971 [17 July 1970] 21539/71 Heading A5B [Also in Division B8]  Soft gelatin capsules are produced containing a fill which is in moisture equilibrium with the shell, and which is a macromolecular gel-lattice matrix containing an active ingredient and from 5-20% by weight of water. The fill is encapsulated whilst in the liquid, i.e. molten, state by any of the conventional methods used to fill soft gelatin capsules. In particular, a fill containing 5-58% by weight of water may be used and the final water content reduced to 5-20% by drying the formed capsules. Suitable materials for the gel-lattice matrix are water-soluble polypeptides, e.g. gelatin, casein, collagen, soya protein, albumin and soy peptone, polysaccharides, e.g. pectin, agar, tragacanth, chondrus, alginates, guar, modified starch and Icelandic moss, and synthetic polymers e.g. P.V.P., methyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, sodium cellulose sulphate, polyacrylic acid, polyethylene maleic anhydride and polyvinyl alcohol. Numerous examples are given in which the active materials are a variety of pharmaceuticals.
Patent GB-1192841-A (GB)
Title: A Pump-and-Valve Arrangement for Fuel Oil Feeding Apparatus
IPC: F23K5/04
Filed: 1968-05-07
Abstract: 1,192,841. Rotary positive displacement pumps. DANFOSS A.S. May 7, 1968 [May 18, 1967], No.21542/68. Heading F1F. A pump-and-valve unit, or arrangement, Figs. 1 and 2, for feeding a nozzle 2 with fuel-oil that is stored in a tank 4 comprises a rotary positive displacement pump 10 of the internally-meshing n and n + 1 tooth type furnished with a device 18 for removing air entrained with the oil and a combined pressure-regulating and cut-off valve 13. The device 18 is constituted by a flowrestricting passage 43, Fig. 3, in a cover plate 27 adjacent working chambers 33 between pumping gear-wheels 24, 25, said passage being connected to a passage 12 on the high-pressure side of the pump through passages 39, 40, 41 and to the tank through passages 44, 19. The passage 39 is in register with the chambers 33 on the high-pressure side of the gears and the passage 43 allows air in the said chambers to escape while permitting only a small proportion of the oil to do the same. A passage 34 in register with the chambers 33 on the low-pressure side of the gears receives oil from the tank through passages 11, 36, 37 and a chamber 30 containing a filter 31. The valve 13 includes a port 7 controlled by a body 47 fixed to an axiallymovable spring-loaded body 50 having a passage 52 and a flange 53 co-operating with an immovable bush 51 between the passage 12 and a passage 15 comprising two portions 15a, 15b and a chamber 16 for a seal 23 about a driving shaft 22, the portion 15b containing a non-return valve 17 and communicating with the chambers 33 on the lowpressure side of the pump. The bodies 47, 50 are retracted from the port 7 in accordance with the pressure-differential between the passages 12, 15, the passage 52 serving as a by-pass for the oil when said differential becomes excessive.
Patent GB-709516-A (GB)
Title: Improvements in or relating to sheet feeding machines
IPC: B65H9/14
Filed: 1950-08-31
Abstract: 709,516. Feeding sheets. BACKHOUSE, H. T. Aug. 31, 1951 [Aug. 31, 1950], No. 21553/50; Class 100 (1) In a sheet feeding machine of the kind where sheets 10 are fed in a continuous stream by conveyers 2 towards front lays 4, the grip of the conveyer on a sheet is reduced shortly before it reaches the front lays 4 to a value which continues the movement of the sheet to the lays but permits slip of the sheet relative to the conveyers 2 if movement of the front edge is resisted. and the speed of the sheet after reduction of the grip of the conveyers is controlled by abutment fingers 7 engaged by the leading edge and travelling with continuous movement towards and at least as far as the front lay position at a speed less than that at which the sheet was conveyed positively. The speed of movement of the abutments may be either constant or decreasing. The abutment fingers 7 are mounted on a shaft 5 which may be oscillated by a cam arrangement. The grip of the conveyer on the sheets is attained by use of pressure rollers 3 which grip is released when the trailing edge of the sheet passes clear of the rollers, the sheets then coming under the control of light steel balls 11 which provide the reduced grip Smoothers may be provided on either side of the fingers 7. Specifications 427,041. 674,842, 674,843, 674,844. 674,888, 693,970, 707,043 and 707,044 are referred to.
Patent GB-423443-A (GB)
Title: Improvements in or relating to the joining of articles of rubber or the like
IPC: B29B15/04
Filed: 1933-08-01
Abstract: 423,443. Jointing rubber. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and WILLSHAW, H., Fort Dunlop, Birmingham. Aug. 1, 1933, No. 21579. [Class 70] In apparatus for jointing rubber by butting together freshly cut surfaces, e.g. butt-jointed tyres or tubes, the rubber is held in clamps mounted on a saddle and is cut progressively across its width ; the cut surfaces are subsequently butted by transverse movement of the clamps across the saddle. A saddle 9 is mounted on a bed-plate 10 along which it is moved by a motor-driven screw 12. Clamps 1, 2 are mounted in transverse grooves 11 on the saddle 9 and have depending spigots with rollers 17 passing through slots 19 in the saddle and engaging grooves 18, 18<a> in the bedplate 10. The bed-plate also carries an anvil 24 with which co-operate a pair of circular knives 23. In operation, the ends x, Fig. 5, of a tyre-tube are placed on the lower members 4 of the clamps, a pawl is freed by a handle 27, and handle 28 is raised. This operates a valve 31 to admit pressure by line 31<a> to cylinders 8 to close the clamps, engages, by means of a link 34, the tip 37 of a lever 36 with a pin 38 on a trip lever 35, and operates a switch 29 to start a motor driving screw 12 to move the saddle 9 to the left. When a skid 45 on the saddle rides clear of an arm 43, a mercury switch 41 is operated to keep the motor running, and the handle 28 is released, opening switch 29. On the end 49 of the saddle reaching the surface 50 of the freelymounted anvil 24, saddle and anvil travel together and carry the rubber under the knives 23. At the end of the travel to the left, the anvil operates a cam (not shown) to lift the knives clear, and a projection 59 strikes a trip 60 to throw over a mercury switch 62 to reverse the motor, and cause the saddle to move to the right. The anvil also moves to the right under the influence of a weight until it returns to its original position where it operates the cam to lower the knives 23 on to its surface. The saddle 9 continues to the right, for the butting operation which is performed by causing the clamps to traverse the saddle as the spigots 17, Fig. 3, pass along the converging parts of the guides 18. One of the converging guides may be resiliently mounted as at 20 to exert an elastic pressure on the clamp. After jointing is complete, the saddle continues to the right and first operates the trip 35 by means of a pin 74 to close the pressure valve 31 and allow springs 7 to raise the upper clamp members 5, and then strikes a projection 76 connected by a link 63 with the switch 62, to throw this latter over and reverse the motor. The saddle then moves to the left until the skid 45 comes into contact with the arm 43 and operates the switch 41 to stop the motor. A spring blind may be mounted on the anvil 24 operated by movement of the anvil to carry away the cut ends.
Patent GB-1000108-A (GB)
Title: Apparatus and control device for forming belt loops
Inventor: METZGER LOUIS G
IPC: D05B5/00
Filed: 1963-05-30
Abstract: 1,000,108. Sewing machines. A. S. MUNCHENBERG. May 30, 1963, No. 21579/63. Heading DIG. [Also in Division F2] A sewing machine for making belt loops on a garment comprises a needle 33 reciprocally driven from an electric motor 36 through wheels 52, 45 a half-revolution clutch 56, crank 106 and plunges 110, and a thread lifter 128 biased towards an upper position by a spring 124. Each half resolution of the crank advances or retracts the needle 33. Depression of a pedal (not shown) pivots a lever 80 to engage the clutch for one-half revolution and the lever 80 also acts through a linkage including link 152 and crank 150 to turn a shaft 118 on which an arm 120 of the thread lifter is secured. The thread lifter 128 is thus lowered and held in the low position by a detent 130 whilst the needle 33 pierces a folded garment G. The end L of the thread T is then held and the pedal released to re-engage the clutch for another half revolution and thus retract the needle 33. When the needle is fully retracted a pin 116 on the plunger 110 engages a cam 138 to release the detent 130 whereupon the thread lifter 128 is raised by the spring 124. The operator may now knot the thread over a guide arm 158 and cut the thread on a knife 160 whereafter the garment may be removed and unfolded. The garment is held against a plate 24 of the machine by a spring pressed clip 26.
Patent GB-155749-A (GB)
Title: An improved hat fastener
IPC: A42B7/00
Filed: 1920-07-19
Abstract: 155,749. Henderson, F. July 19, 1920. Hats, securing to head.- A fastener for a lady's hat comprises a pair of parallel bars 3, 3<a>, and a volute spring 1 having a stem 2 which passes through one of the bars, the other of said bars, when the spring is extended, being disposed between coils thereof. In use, eyes 4 are secured inside the hat, the stem 2 carrying a detachable knob 5 outside the hat. In the position shown, the spring 1 engages the wearer's hair. On turning the knob 5 the coils are withdrawn within the bars 3, 3<a>. The end of the stem 2 has a flat sharpened end for piercing the knob 5, and is retained therein by a spring 8 secured to the knob.