baber/WOPTO huggingface dataset:
Patent GB-1101381-A (GB)
Title: Rocket propellent compositions
Inventor: SCURLOCK ARCH CHILTON
IPC: C06B33/06
Filed: 1963-08-16
Abstract: A rocket motor solid propellant is formed of an inorganic oxidizer and finely-divided alumium fuel dispersed in an organic fuel matrix in which the oxygen content is a given fraction of a quantity which is a function of the propellant atomic weight and the aluminium valency.  The organic fuel matrix may require an external source of oxygen, that is the solid inorganic oxidiser, or may incorporate its own oxygen.  Semi-solid, thixotropic, propellants may also be formed, using specified hydrocarbons, esters, alcohols, and ethers.  It is stated that the highest boost velocity is obtained with given materials, when the given fraction has a value between 0.47 and 0.60. The organic fuel used may be a polyether, polysulphide, polyurethane, polyester, polyamide or butadiene-acrylic acid or methacrylic acid copolymer, polyvinyl chloride, cellulose acetate, ethyl cellulose, asphalt, nitrocellulose, or nitroglycerine. The inorganic oxidizer may be ammonium, K, Na or Li perchlorate or nitrate, or Ca, Ba or Na peroxide.  The propellant may include specified plasticizers and other standard ingredients.
Patent GB-721524-A (GB)
Title: Improvements in or relating to magnetogram magnetic recording media
IPC: G11B5/706
Filed: 1952-12-23
Abstract: 721,524. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 23, 1952 [Dec. 31, 1951], No. 32616/52. Class 38 (2). [Also in Group XXXVIII] A fine granular ferromagnetic material used in making magnetic recording means comprises as an essential constituent non-cubic crystals of polyoxides of iron including at least one of the metals barium, strontium, and lead, not more than <SP>2</SP>/ 5  of these metals being optionally replaced by calcium, which crystals form the subject of Specification 708,127. The fine particles, which have a size less than 10 G. and preferably less than 5 G. can be orientated on the carrier in one direction, if flat, by mechanical oscillations, e.g. of ultrasonic frequency, and if exhibiting crystal anisotropy, by a magnetic field. To ensure homogeneous distribution of the particles which have high BHc and much greater IHc they may be applied to the carrier in a high-frequency magnetic field, and at a high temperature, e.g. 400‹ C. or low temperature, e.g. -200‹ C. where BHc is much reduced. The recording and erasing may be carried out at such temperatures.
Patent GB-221716-A (GB)
Title: Improved manufacture of the phosphorus-containing nuclear substance of milk casein
IPC: C12N15/10
Filed: 1923-12-31
Abstract: The organic phosphorus compound contained in milk casein is obtained free from mineral phosphates by digestion in weakly alkaline solution with pancreatic ferments, precipitating the filtered liquid by means of a heavy metal salt, dissolving the precipitated heavy metal salt in alkali carbonate solution, thereby leaving the mineral phosphate, precipitating the alkali metal salt with alcohol and re-dissolving it in water, again precipitating by means of a heavy metal salt and removing the heavy metal such as by means of hydrogen sulphide, and finally precipitating the free acid with alcohol and drying.  The alkali carbonate solution may, if desired, be subjected to a second digestion with pancreatic ferments prior to the precipitation by alcohol.  In an example, commercial milk casein is suspended in hot water and anhydrous sodium carbonate, sodium bicarbonate, trypsin or pancreas and toluene added.  The filtered liquid is precipitated with sugar of lead and basic lead acetate solution. The precipitate is dissolved in sodium carbonate until slightly alkaline to phenolphthalein and the solution separated from lead phosphate and carbonate.  A second digestion with trypsin may follow, and the phosphorus compound is further purified as described above, lead again being used as the heavy metal.  Copper acetate or a mercury salt may also be employed as a precipitant. The alkali metal or alkaline earth salts may be obtained by neutralization of the free acid, and the iron salt by acting on the sodium salt with a soluble iron salt.  Specification 210,698 is referred to.
Patent GB-879536-A (GB)
Title: Improvements relating to a valve for aerosol apparatus
IPC: B28B11/24
Filed: 1957-10-18
Abstract: 879,536. Valves. SAFCA AEROSOL MANUFACTURING Ltd. Oct. 18, 1957 [Oct. 18, 1956], No. 32667/57. Class 135. [Also in Group XXVIII] The valve of an aerosol container comprises a flexible member 11 having a shoulder engaging a head 13 on a member 14 carried by a lower member 12. The member 11 is flexed away from engagement with the head 13 by pressure applied to a cap 41.
Patent GB-730991-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H13/10
Filed: 1952-10-24
Abstract: 730,991. Retractive switches. CRABTREE & CO., Ltd., J. A., and WINTLE, T. D. G. Oct. 2, 1953 [Dec. 24, 1952], No. 32750/52. Class 38 (5). A snap-action switch has a plunger 32 carrying resilient blades 31 supporting toggle members 34, the outer ends of which pivotally engage a contact plate 35 normally bridging contacts 5a. Depression of the plunger moves the inner ends of members 34 to the left of plate 35 which thus snaps to the right to bridge contacts 5. A recess 33b in the plunger allows for flexing of blades 31. The switch is reset by a spring 38 when the plunger is released. Specification 731,036 is referred to.
Patent GB-245450-A (GB)
Title: Improvements in or relating to apparatus and processes for drawing glass
IPC: C03B15/06
Filed: 1925-12-29
Abstract: 245,450. Wessely, E., Starrach, N., and Schmied, F. Jan. 3, 1925, [Convention date]. Drawing. - Relates to the method of drawing sheet glass in which the sheet 6 is drawn from a slot 4 in a block 3 or refractory material. According to the inven tion, the glass flowing into the slot is taken from the upper part of the metal in the drawing-pot by connecting the slot with channels 5 formed in the side walls of the block. The channels may be horizontal, as shown, or their outer ends may be upturned, so that metal is taken from near the surface of the metal in the pot.
Patent GB-300030-A (GB)
Title: Improved coupling device for agricultural tractors
IPC: A01B63/04
Filed: 1927-12-05
Abstract: 300,030. Crezee, P. Dec. 5, 1927. Couplings for tractors and ploughs. -The plough beam 8 is housed in a sleeve 9 adjustably mounted on a support 7 connected by parallel links 5, 6 with a vertical bar 4 pivoted to the tractor at 1, 2. The links 5, 6 and bars 4, 7 form a parallelogram. The plough is raised and lowered by means, of a ratchet lever 27 and chain 21. The beam 8 may be adjusted angularly on its axis by means of arms 33, 34, which are connected by an adjusting screw. The pivot 2 is mounted on a pivoted bar 45 one end of which may be moved horizontally by means of screws 47. The sleeve 3 on which the sleeve 9 is mounted is capable of slight adjustment in the longitudinal plane of the machine.
Patent GB-467009-A (GB)
Title: Improved forerunner with inlaid electric conductor for electric killing of whales
IPC: H01B7/04
Filed: 1936-11-30
Abstract: 467,009. Cables combined with ropes. AKTIESELSKABET ELEKTRISK HVALSKYTNING. Nov. 30, 1936, No. 32829. Convention date, Nov. 30, 1935. [Class 36] In a forerunner with inlaid electric cable 1 for the electric killing of whales, relative movement between the cable and rope is prevented by roughening the outer insulation 2 of the cable or by forming it with ribs, projections, or edges. Ribs may be longitudinal, helical, or circular, and may be interrupted to form projections 4.
Patent GB-177204-A (GB)
Title: Process of and apparatus for the combustion of liquid fuel
IPC: F23D5/00
Filed: 1920-11-22
Abstract: 177,204. Becker, E. Nov. 22, 1920. Liquid-fuel furnaces.-A vapour burner having a downwardly directed flame is supplied with separate streams of heated air for supporting combustion, the second air stream being more highly heated than the first. Fig. 1 shows a vapour burner in which oil is supplied by pipes 1 to an annular dish 2 which is maintained at a high temperature by the flame below it. The vapour produced passes through a gap 5 between the dish 2 and its cover 4 and is burnt with air heated by passage between a hood 16 and the combustion chamber 3. Part of the air is supplied to the flame through openings 9 in a plate 7 closing a central opening on the cover 4 and the remainder through a tube 8 having a perforated lower end. The air supply through the openings 9 is regulated by means of a vertically adjustable plate 11 formed with conical projections 10. The flame is deflected inwardly by an annular plate 18. Fig. 2 shows a construction in which air heated by passage through a hood 16 is supplied through a hand or automatically adjusted valve 21 having a perforated lower portion 20. A second air supply passes to the flame through oppositely inclined slots 28, 29 in the coaxial cylindrical walls 26, 27 of the combustion chamber and through openings 30 in the flue 23. This air is heated in the jacket between the walls 26, 27 to a higher temperature than the air passage through the hood 16. The combustion may be started by igniting oil-impregnated wood shavings arranged on the plate 11, Fig. 1, or in the pocket of the valve 21, Fig. 2. In other constructions, the channel may, instead of being annular, be rectilinear and consist of a number of straight sections.
Patent GB-966756-A (GB)
Title: Process for isolating polymers from solutions thereof in organic solvents
IPC: C08J3/14
Filed: 1960-09-23
Abstract: High molecular weight non-halogenated and/or non-sulphohalogenated polymers of mono- and/or di-olefins are isolated in a granular and uniform state, from viscous solutions of the polymers in organic solvents which are immiscible with water, by mechanically fragmenting and subdividing the solutions in water which is in a state of turbulent motion, and at a temperature above the boiling point of the organic solvent, or the water/solvent azeotropic mixture, maintaining the polymer particles in a state of turbulent motion until the solvent evaporates, cooling the aqueous suspension, and separating the polymer particles.  The polymers may be made by use Ziegler-type catalysts, or free-radical catalysts such as benzoyl peroxide, azoisobutyric acid dinitrile, diacetyl peroxide. potassium persulphate, or hydrogen peroxide, Solvents mentioned are butane, pentane, hexane, heptane, cyclohexane, methyl-cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, toluene, xylene, ethylbenzene, mixtures of hydrocarbons having a boiling range of 60 to 250 DEG C., carbon tetrachloride, 1:2-dichloroethane, and chlorobenzene.  The mechanical fragmenting is preferably effected with a stirrer having multi-sharp-edged blades, and operating at a speed of 300 to 3,000 revolutions per minute. Turbulent flow is created by injecting steam or air into the mixture of the organic solvent solution and hot water.  The polymers may be copolymers or homopolymers of ethylene, propylene, butylene, butadiene, 2-chlorobutadiene, 2-methyl-butadiene, or styrene, for example polybutadiene, a copolymer of butadiene and styrene, and a copolymer of butadiene and acrylonitrile.  In the examples is described (1) the recovery of a copolymer of ethylene and propylene made by using a catalyst consisting of vanadium isobutylester and Al(C2H5)2Cl, from a 10% solution in toluene, and (2) the recovery of polyisoprene in small granules having a diameter of 5-8 mms, from a solution in gasoline of polyisoprene made by polymerization in the presence of a catalyst consisting of TiCl4 and Al(C2H5)3.  Specification 418,069 and U.S.A. Specification 2,592,814 are referred to.
Patent GB-840925-A (GB)
Title: Pressure control means for road rollers
Inventor: GREINER CARL FREDERICK
IPC: E01C19/26
Filed: 1956-10-29
Abstract: 840,925. Road rollers. KOEHRING CO. Oct. 29, 1956, No. 32911/56. Class 6(1). A road roller is provided with a hydraulic cylinder 60 for exerting pressure in a roll 30. A pressure relief valve is provided for maintaining the hydraulic pressure constant and this is incorporated in a pressure control valve 61 which is provided with a valve for adjusting the hydraulic pressure applied to the roll. The roll 30 is mounted in a kingpin which is vertically slidable in the frame and is connected to the piston 72 of the cylinder 60. A valve 77 is provided for allowing oil to flow between the bottom and top of the piston so that the roll may be free to move vertically. Vertical movement of the roll 30 may be limited by means of a locking lever 155 pivoted on a stud 152 and operated by a linkage 159. The roll 30 and roll 29 are steered by means of a hydraulic cylinder 52 connected to an arm 54 in the king- pin 48 which is also provided with an arm 50 connected by a link 51 with an arm 49 in the kingpin 47 of roll 29. The rear roll 28 is driven from a motor 33 which through a transmission 34 drives a bevel gear 35 which meshes with a ring gear 36 secured to the drive roll 28. Specification 840,923 is referred to. shaft which is adjusted in a tubular member to adjust the working height of the cultivator. The cultivator is attached to the tractor by a draw-bar 8 so that it is towed offset to the tractor.
Patent GB-1397272-A (GB)
Title: Tool carrying unit for machine tools
IPC: B23Q5/04
Filed: 1972-07-14
Abstract: 1397272 Tool carrying unit; grinding MOLLART ENG CO Ltd 29 June 1973 [14 July 1972] 33106/72 Headings B3C B3N and B3D A tool carrying unit for a machine tool consists of two separable parts, a base section 11 and a tool supporting section 12. The base section has apertures 20, 21 into one of which an input shaft 23 is fitted. A bearing unit 22 mounts the shaft therein. The shaft engages one of input shafts 43, 44 and drives tool or tools 42 via gearing and a speed dependent on which input shaft 43, 44 is engaged by shaft 23. A shaft 62 is also driven by the gearing and in turn drives cam 37 via worm shaft 31. Sections 11, 12 are held together by bolts or by pins 71 engaging in bores in section 11 and being locked therein by further pins inserted in apertures that are at right angles to and intersect said bores. Locking pins 82 are adapted to engage apertures in a steel head block forming part of an automatic head lock assembly.
Patent GB-1378058-A (GB)
Title: Panel retaining assemblies
IPC: E06B3/62
Filed: 1972-07-17
Abstract: 1378058 Glazing STANDARD PRODUCTS CO 17 July 1972 [23 Aug 1971] 33265/72 Heading E1R A panel mounting assembly comprises a resilient gasket 32 with a channel for receiving the panel edge 10, a rigid retaining. member 106 engaging the outer surface of a side wall of the channel, and a fastening member 114 extending through the retaining member. into the gasket. The gasket has a foot 50 engaged in a channel of a mullion member 30 and a locking strip (100). The retaining member 106 is secured by a screw 114. In Fig. 5 (not shown). the screw extends into a structural member (B) which has a flange (150) engaged in the gasket.
Patent GB-311832-A (GB)
Title: Improvements in or relating to the production of supply spools of strip material foruse in the manufacture of filter wads for cigarettes, cigarette holders, cigars, tobacco pipes and the like
IPC: A24D3/02
Filed: 1927-12-08
Abstract: 311,832. Aivaz, B. Dec. 8, 1927. Winding webs.-In the production of supply spools of composite strip material, for use in the manufacture of filter wads for cigarettes, cigarette holders, cigars, tobacco pipes, &c., layers of creped or corrugated paper and of absorbent material are withdrawn from supply rolls and are associated together in such a manner that layers of absorbent material are applied between layers of creped or corrugated paper and tearing or stretching of the absorbent material is prevented. The crepe or corrugated paper and the absorbent material are preferably such as are described in Specification 311,831, [Class 130, Tobacco]. Fig. 1 shows an apparatus for the production of spools of composite material comprising three layers of crepe or corrugated paper from supply rolls b, b<1>, b<7>, and two intervening layers of absorbent material from supply rolls a, a<1>. The layers b<4>, b<5> of crepe &c. paper from the rolls b, b<1> are led over the rolls a, a<1> and serve as carriers for the superposed layers a<4>, a<5> of absorbent material, a final layer b<6> of crepe &c. paper being laid on the layer a<4> from the roll b<7>. The composite strip passes over a roller c to a cutting device comprising disc cutters d co-operating with circumferential grooves in a roller e. The strip is thus cut into narrow strips which are wound on a number of ring-like formers f<1> on a spindle f. In order to keep the top of the resulting roll on a level with the top of the roller e, the arms g<1> carrying the spindle f are gradually lowered during winding by means of rods g<3> pivoted to blocks g<4> on a screw-threaded shaft g<5> driven from the shaft of the roller c. The winding spindle f is driven from the main shaft through belt and spur gear p<1>, p<2> and a lightly loaded clutch, and the cutter shaft d<1> through belt or chain gear p<4>. The rolls a, a<1>, b, b<1>, b<7> are driven from a shaft p<6> connected through a, pair of coned pulleys p<7> to a shaft p<5> driven from the shaft p by worm gearing, and the drive to the rolls a, a<1> or all the supply rolls may be transmitted through lightly loaded clutches. The completed spools are removed from the spindle f, a spring clip i, Fig. 4. being applied to each to retain its form until a coating of adhesive is applied to one side. Specifications 311,827; 311,829, [Class 130, Tobacco], and 311,830 also are referred to.
Patent GB-1120861-A (GB)
Title: Improved smoker's pipe
Inventor: GODDARD JOHN ANSELL
IPC: A24F1/16
Filed: 1964-08-14
Abstract: 1,120,861. Tobacco pipes. RONSON PRODUCTS Ltd. 12 Aug., 1965 [14 Aug., 1964], No. 33331/64. Heading A2M. The bowl receiving portion 2 of a tobacco pipe is connected to the mouthpiece by a series of tubes comprising two tubes 6, a tube 9 and a tube 13 whereby smoke travels initially towards the mouthpiece through the two tubes 6, through an insert 8 in the mouthpiece end of the stem, through the central tube 9, and finally through the tube 13 which is fitted to the mouthpiece and extends into the tube 9. In the embodiment shown the tube 9 is formed in the stem 1 and the tubes 6 are fitted in bores in shoulders 5 and 7 in the portion 2 and mouthpiece end of the stem respectively. The bowl is screwthreaded on to the portion 2 and may be strengthened in the vicinity of the screw thread by impregnating it with a synthetic resin. In a second embodiment, Figs. 3 and 4 (not shown), the tubes are formed within the stem which is made up of an outer tube and inner tube shaped to touch at two points on their circumference to form two passageways corresponding to the tubes 6. The inner tube corresponds to the tube 9 and the tube 13 is located within the inner tube.
Patent GB-844163-A (GB)
Title: Means for disconnecting shafts
IPC: F16D11/04
Filed: 1956-11-01
Abstract: 844,163. Positive clutches; gearing for stopping and starting machinery. GENERAL ELECTRIC CO. Nov. 1, 1956 [Nov. 1, 1955], No. 33395/56. Class 80 (2). [Also in Group XXXV] A disconnectable drive-mechanism between an aeroplane engine and an auxiliary unit such as a dynamo 10 comprises a driving-member 41, 38 having axial clutch teeth engaging clutch teeth 36 at one end of a flexible torque transmitting shaft 30, carrying frictionally at its other end a plate 50 secured to a nut 49 threaded upon the outside of a sleeve 18 fast with the rotor &c. of the dynamo, energization of a solenoid 60 by the pilot on the development of a fault in the dynamo causing a brake pawl 70 to be projected into the path of a radial lobe 76 on the nut 49 which is thereby prevented from rotating. The kinetic energy of the sleeve 18 &c. causes the nut 49 to be screwed leftwards of the Figure, taking with it the plate 50 and shaft 30. The clutch teeth 36 on the shaft 30 are thereby disengaged from the clutch teeth on the driving-member 38, 41 and drive to the dynamo is interrupted. The nut 49 is normally constrained to rotate the sleeve 18 by a tab washer 53, stationing of the nut 49, as described, causing the tabs of the washer to be disengaged from the nut. To re-engage the clutch, an end cover 54 of the dynamo, having air vents 56, is removed so that the shaft 30 can be slidden rightwards of the Figure to re-engage the clutch teeth, and the nut 49 then screwed back into place. The end cover 54 can be secured to the dynamo housing 12 in any one of a number of desired angular positions. The connection between the splines 36 of the shaft 30 and the coresponding splines of the driving member 38, 41 allow some angular clearance in order to take up torsional vibrations at or near the critical frequency, as described in Specification 680,274. Specification 785,268 also is referred to.
Patent GB-1388094-A (GB)
Title: Method of producing highly purified phosphatides from animal  organs
IPC: C07F9/10
Filed: 1973-07-13
Abstract: 1388094 Producing phosphatides ETAPHARM CHEM PHARM LABORATORIUM GmbH 13 July 1973 [31 July 1972] 33434/73 Heading C2P Highly-purified phosphatides are produced from animal organs by (a) taking up a total lipoid extract (obtained from the organs using organic solvents) repeatedly in an alcoholcontaining solvent and evaporating the solution each time at up to 40‹ C., mixing the dried extract with petroleum ether, allowing the mixture to stand in the presence of an inert gas at freezing cabinet temperatures thereby separating the precipitated proteins, (b) taking up the extract freed from proteins and solvents in a polar or slightly polar solvent preventing the formation of micellar structures and washing the solution with neutral aqueous sodium salt solutions and water and (c) dissolving the extract freed from water and solvents in a non-polar solvent, filtering the solution through silica gel and freeing the product from the solvent, step (c) being carried out before or after step (b). The alcohol-containing solvent in step (a) may be a mixture of methanol and chloroform or a mixture of ethanol and benzene and preferably a mixture of methanol, chloroform and water, a mixture of ethanol and benzene and a mixture of methanol and chloroform are used in succession. The solvent in step (b) may be diethyl ether, ethylacetate or chloroform and that in step (c) may be pentane, hexane, heptane or a mixture thereof including petroleum ether. An additional treatment with an alcohol-containing solvent may be included in step (a). The phosphatides produced may be used as ingredients of injectable aqueous dispersions for therapeutic purposes.