baber/WOPTO huggingface dataset:
Patent GB-848656-A (GB)
Title: Polymeric organo-boron phosphorus containing compounds and methods of making same
IPC: C08G79/14
Filed: 1959-06-08
Abstract: Phenylphosphino - phenylborane polymers having as the sole recurring structural unit the grouping (-PPh-BPh-), where Ph stands for the phenyl radical, the recurring structural units being bonded together only through B-P bonds, are prepared by condensing in a suitable medium phenyl-phosphine and phenylboron dichloride, preferably in equimolecular quantities.  In the example phenylphosphine and phenylboron dichloride are condensed in petroleum ether solvent and in the presence of triethylamine which serves to take up hydrogen chloride produced during the reaction.  The products are useful in the preparation of films and shaped objects.
Patent GB-937067-A (GB)
Title: Improvements in machines for harvesting tall row crops
IPC: A01D45/10
Filed: 1959-12-21
Abstract: 937,067. Harvesting sugar-canes; cutting-up forage crops. MASSEY-FERGUSON (AUSTRALIA) Ltd. Dec. 21, 1959 [Jan. 7, 1959], No. 19460/63. Divided out of 937,065. Classes 5(1) and 6(3). Relates to a sugar-cane or like harvester of the type comprising spaced vertical side-walls 21 defining a throat which is open in front, the walls being passed on opposite sides of a croprow so that the row enters the throat, there being means 30 for severing the butts of the stems of the crops during progress of the machine and means 81, 82 for conveying the severed crops rearwardly. According to the invention, there are means 70 for chopping the crop-stems into short lengths or " billets ", and the conveying means includes an elevator 100 for conveying the billets rearwardly and upwardly, the billet-chopping means 70 comprising a pair of rotary assemblies 70A, 70B, Fig. 5, having cutter blades 74 that co-operate to chop the crop, the assemblies being arranged so that their axis lie in a forwardly and upwardly inclined plane in order that the blades will throw the billets upwardly and rearwardly directly on to the elevator 100. The main features of the machine are described in Specifications 937,065 and 937,066 but the chopping assemblies comprise shafts 71, 72 coupled by intermeshing gears to rotate in opposite directions at the same speed, the blades 74 on opposite assemblies arriving together at the point of nearest approach. Discs 77, 78 are secured to the shafts near the ends of the blades to prevent the stalks from moving out of range of the blades. The cropfeeding means comprises belt-conveyers 81, 82 in the side-walls 21 of the crop-feeding throat, and an endless-chain slot-conveyer 50 in the base of the throat. The delivery elevator 100 comprises endless chains 101 and tine-bars 102.
Patent GB-933215-A (GB)
Title: Improvements in or relating to electrical equipments
IPC: H05K7/14
Filed: 1961-05-30
Abstract: 933,215. Mounting electrical equipment. GENERAL ELECTRIC CO. Ltd., W. J. BLIGHT, and R. L. RIDDIFORD. May 30, 1962 [May 30, 1961], No. 19466/61. Class 37. In an electrical equipment of the kind comprising a housing, a removable structural unit carrying electrical apparatus and normally mounted in the housing, and at least one multi-way connector such as a plug and socket arrangement between the housing and the structural unit, at least two attaching mechanisms of the sort described below are provided for facilitating the removal of the structural unit from'the housing. As shown, Fig. 1, a structural unit 1 is a sliding fit in a housing 2, electrical connection between apparatus (not shown), such as a radio receiver, mounted on the unit, and a cable form (not shown) on the housing, being effected by means of plugs 7, comprising spring contacts 8, on the housing, and co-operating sockets 14 on the unit, the unit being accurately located in the housing by means of two pegs 10 on the latter which engage holes (not shown) in the former. Four attaching mechanisms are provided, each comprising a slidable member 19, Fig. 2, which includes a rod 20 supported in holes in a U-shaped bracket 22 riveted to the inner face of a wall 4 of the housing. One end of rod 20 is threaded and fitted with a self-locking nut 28 which limits the axial displacement of the slidable member 19, and a helical spring 26 is located around rod 20 between the bracket 22 and a washer 27 seated against a circumferential shoulder 21 part way along the length of rod 20. A screw 32, captive at each corner of the front panel 18 of the unit 1, is screwed into a threaded hole 30 in a rectangular steel block 29 integral with rod 20 to engage and secure the unit 1 in its correct position in the housing 2. To remove the unit from the housing, three screws 32 are completely unscrewed, thus compressing the associated springs 26 so that, when the fourth screw 32 is unscrewed, said springs exert pressure of the front panel 18 to urge the plugs 7 out of engagement with the sockets 14. A plurality of housings may be secured side by side in a fixed framework, a plurality of units being mounted therein.
Patent GB-699665-A (GB)
Title: Method and composition for production of cellular thermoplastic products
Inventor: LONG CHANCEY EDWARD DE
IPC: C08J9/00
Filed: 1951-08-17
Abstract: In a method of making elongated cellular bodies, e.g. panels, planks and beams, of thermoplastic resins, particularly benzene-soluble polymers and copolymers of monoalkenyl aromatic compounds, e.g. polystyrene, a gel comprising the thermoplastic resin, 0.04 to 1 per cent of at least one of barium, calcium, lead and zinc stearates and a normally gaseous agent, e.g. methyl chloride, methyl and ethyl ethers, methyl ethyl ether or a cracked oil gas fraction rich in ethylene, propylene or butylene is formed under pressure, extruded through an orifice and, during expansion, externally pressed to a predetermined and uniform thickness.  The normally gaseous agent is present in an amount sufficient to form a flowable gel and to be vaporized completely upon release of pressure and resultant expansion and cooling to a temperature between -30 DEG  C. and 10 DEG  above the distortion temperature of the resin.  Finely divided aluminium powder, pigments, carbon black or calcium silicate may be included in the gel.  Specifications 406,267, [Group V], and 661,002 are referred to.ALSO:Elongated cellular bodies of thermoplastic resins, e.g polystyrene panels, planks and beams, are formed by extruding under pressure through an orifice a flowable gel containing a normally gaseous agent (see Group IV(a)), and externally pressing to shape during the expansion to give a predetermined and uniform thickness. In an example, an orifice, 3 1/4 inches long with a minimum width of 1/8 -inch, with rounded corners and each side bowed in at the centre, has mounted over it a flared tubular shaping member in the form of a truncated rectangular pyramid having its principal axis in horizontal alignment with the orifice, and a cross-section 4 3/8 inches long with a minimum width of 1 1/2 inches at the narrow end widening to a cross-section of 11 inches and 3 3/4 inches at the outlet end.  About 4 inches from the outlet a pair of endless belts spaced 5 inches apart at the inlet and 6 inches at the delivery end, and 50 feet long, receive the extruded material to prevent warpage in addition to shaping.  The planks are then trimmed to 4-inch thickness and 10-12 inches width.  Specifications 406,267 and 661,002, [Group IV(a)], are referred to.
Patent GB-379456-A (GB)
Title: Direct coupled double channel amplifier, employing thermionic valves
IPC: H03F3/36
Filed: 1931-07-07
Abstract: 379,456. Valve amplifying circuits. CHAMBERS, W. A., Lullingstone, Reigate Road, Ewell, Surrey. July 7, 1931, No. 19516. [Class 40 (v).] A direct coupled amplifier system of the kind described in Specification 330,956, [Class 40 (v), Wireless signalling &c.], is arranged in push-pull to eliminate the effects of common impedance coupling and parasitic noise and to provide an amplifier which will continue to function in the event of a defect occurring in one side of the system. The Figure shows an arrangement in which separate anode and cathode resistances 7, 13 are used for each valve in addition decoupling resistances 25 and condenser may be provided as shown. A single condenser between the cathodes of a pair of valves may be used, Fig. 4 (not shown). A single resistance common to the cathode circuits of a pair of valves may be used, Fig. 2 (not shown).
Patent GB-1188682-A (GB)
Title: Improvements in and relating to Spray Coating Apparatus
Inventor: FERRANT WOLFGANG
IPC: B05B7/06
Filed: 1967-04-27
Abstract: 1,188,682. Spray-producers. RANSBURG ELECTRO-COATING CORP. 27 April, 1967 [28 April, 1966 (3)], No. 19535/67. Heading B2F. An electrostatic spray gun suitable for discharging a liquid coating material comprises a narrow annular opening 30 for the emission of the spray particles. said opening being defined by the adjacent ends of a pair of coaxial electroconductive tubes 26, 27 which are connected to the opposite terminals of a voltage source, means for supplying a stream of air through the tube 26, and a cap 32 arranged so that the liquid supplied under pressure through the tube 27 is discharged through an annular gap as a thin film into the air stream. The film meets the air stream approximately at right-angles and the said gap is substantially coincident with the adjacent edge of the said opening. Both tubes 26, 27 may be earthed, an electrode 29, charged from a line 17 via a resistor 34, being mounted on the tube 26 by a ring 28 of insulating material. The spreading of the discharged spray may be prevented by air induced through openings 35 in a housing 23 by the flow of the spray particles. An earthed barrier 22 prevents the electrode 29 being reached through the openings 35. The particle deposition may be aided and dispersion prevented by an external electrode (37), Fig. 3 (not shown) which is insulated from the gun. The electrode (37) has hollow walls containing metal shavings or metal wool (41) and is charged by an air stream ionized by an electrode (45). Air may be induced through holes (46), (47) in the electrode. Alternatively the external electrode may comprise sharply pointed members (50) which are charged by the spray particles and are adjustably mounted, figs. 4 and 5 (not shown). In a further embodiment, fig. 6 (not shown) the external electrode is charged by a body of radioactive material (55), which body is adjustably mounted. A trigger controls the supply of air, liquid and voltage.
Patent GB-649848-A (GB)
Title: Improvements in or relating to lens mounts
IPC: G02B7/04
Filed: 1948-07-21
Abstract: 649,848. Lens mounts. KODAK, Ltd. July 21, 1948, No. 19578. Convention date, Aug. 28, 1947. [Classes 97 (i) and 98 (i)] In a focusing lens mount of the type comprising several lens cells of which the front one is movable axially by turning a focusing member, the latter comprises a hollow annular cap, which is supported by the movable cell and is connected therewith for focusing by means of a clamping member carried by the movable cell and means are provided for drawing the cap and the clamping member into tight frictional engagement with a flange formed on said cell between the clamping member and the cap. As shown, the mount comprises a housing 11 to which is fixed a cell 15 carrying lenses 12, 13 and in which is threaded a cell 17 carrying a lens 14. Cell 17 supports at 26 a hollow annular cap 20, the outer part 21 of which is provided with a focusing scale cooperating with a fixed index mark on the housing 11. In contact with an internal flange 25 of the cap 20 is a flange 27 on the cell and between this flange and a shoulder 29 on the cell, a clamping member 30 is mounted. When it is desired to use the mount, the lenses are focused on an object at a known distance by moving cell 17. When cell 17 has taken up its correct position, a screw 31 on the cap 30 is screwed into a hole in the member 30 so that the flange 25 on the cap and the member 30 are drawn into tight frictional engagement with the flange 27 so that cap 20, cell 17 and clamping member 30 rotate and move axially as a unit. The clamping member 30 is in the form of a horseshoe-shaped plate and has enlarged shoulders at its extremities for engagement with a projection 35 from the housing 11 to limit the rotational movement of the cell 17.
Patent GB-428654-A (GB)
Title: Improvements in automatic starting rheostats for electric motors
IPC: H02P1/36
Filed: 1934-07-03
Abstract: 428,654. Liquid controllers. PLANCHE, B. R., 3, Route de Franz, Villefranche-sur-Saone, Rhone, France. July 3, 1934, No. 19602. Convention date, July 5, 1933. [Class 38 (iii)] In an automatic starting rheostat, in which electrodes are gradually immersed in an electrolyte displaced by the motor, two pumps 8, 9 on a vertical shaft 7 are provided, the lower pump 9 operating to convey the electrolyte from a reserve tank 6 into an intermediate tank 5 and the upper pump 8 to convey it from the intermediate tank 5 to an upper tank 2 containing the electrodes 1, means also being provided whereby, when the upper tank empties into the intermediate tank after operation, any excess liquid in the latter is conveyed back into the reserve tank to maintain the proper level in the intermediate tank. This level is maintained by overflow openings 14 in the tank 5. The passage of the electrolyte to the tank 2 includes a number of wooden balls 11 of which one or more is kept depressed by an adjustable finger 12. These balls operate as valves facilitating the return of the electrolyte, but closing certain of the openings into the tank 2. A shortcircuiting contact 24 carried on a weighted diaphragm is provided with spark-preventing carbon contacts 26 co-operating with similar contacts 27 on a blade spring 38 riveted to an upper copper contact 28. The flow of air to and from the tank 5 is controlled by a wooden ball valve 20 which closes when the liquid reaches the top, and ensures the lifting of the shortcircuiting contact by the movement of the diaphragm. Stuffing boxes 33, 36, for a gearing box 35, and the adjustment screw of the finger 12, are provided. The surfaces of the tank 2 are fitted with perforated metal sheets 32, to increase the contact area of the electrolyte. Specifications 365,002 and 392,100 are referred to.
Patent GB-1127677-A (GB)
Title: Improvements in or relating to the production of unsaturated aliphatic carboxylic acids
Inventor: BALL WILLIAM JOHN
IPC: C07C57/055
Filed: 1966-05-04
Abstract: 1,127,677. Acrylic and methacrylic acids. BP. CHEMICALS (U.K.) Ltd. 21 April, 1967 [4 May, 1966], No. 19612/66. Heading C2C. [Also in Division B1] Acrylic or methacrylic acids are prepared by reacting at elevated temperature in the vapour phase acrolein or methacrolein or substances which under the reaction conditions give rise to acrolein or methacrolein, e.g. propylene and isobutene, with molecular oxygen over an oxide composition containing antimony, molybdenum and cobalt with antimony in major proportion with respect to the molybdenum and cobalt combined. The catalyst may be as a fixed or fluidized or moving bed and the oxygen may be diluted by inert gases.
Patent GB-445745-A (GB)
Title: Improvements in quick-action electric switches suitable for controlling refrigerating plants
IPC: H01H35/26
Filed: 1935-07-10
Abstract: 445,745. Thermal switches. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. July 10, 1935, No. 19663. Convention date, July 27, 1934. [Class 38 (v)] A snap-action switch for use in controlling an electric refrigerator comprises a spring blade 22 mounted in compression between studs 23 and carrying a contact 24 adapted to co-operate with a spring-mounted fixed contact 25. An operating lever 20 pivoted at 19 has riveted to its side faces blade springs 21, the upper free ends of which extend at right angles to their main parts and lie on either side of the spring blade 22. A U-shaped rider 37 which embraces the springs 21 and lever 20 is slidable up and down to vary the flexibility of the springs 21. The lever 20 is moved by a pin 27 on a rod 18 connected to a bellows 11 movable in accordance with changes of temperature and one or other of the springs 21 transmits the movement to the spring blade 22 thus causing it to snap over. A bell-crank lever 33 is normally held by engagement of its right-hand end with a hole 32 in a bimetallic strip 31 which, on overload, is heated by the current and frees the lever 33 which then moves under the action of a spring 36 so that its left-hand end engages the lever 20 to open the circuit. The bimetallic strip 31 can also be moved to the right to open the circuit by turning a knob 13 which also controls the tension of a spring 12 acting on the bellows to set the temperature at which the switch operates.
Patent GB-293432-A (GB)
Title: Improvements in or relating to automatic train control systems
IPC: B61L3/12
Filed: 1927-10-06
Abstract: 293,432. Associated Telephone & Telegraph Co., (Assignees of Hudd, A. E.). Oct. 6, 1926, [Convention date]. Drawings to Specification. Divided on 278,730. Electromagnets; magnets. - The apparatus described is identical with that described in the parent Specification. The. claims relate to the signals on the locomotive. Specifications 290,587, 290,588; and 293,431. [Class 105, Railway Signals &c.], are also referred to.
Patent GB-489808-A (GB)
Title: A process of refining hydrocarbon oils
IPC: C10G21/22
Filed: 1937-07-16
Abstract: Hydrocarbons such as petroleum or tar oils are purified or de-waxed by selective solvents consisting of compounds of the general formula R-(SO2Hal.)n, where R is alkyl, aryl in which one or more hydrogen atoms may be substituted, Hal. is chlorine, bromine, iodine or fluorine and n is 1, 2 or 3. Suitable compounds are: (CH3)SO2Cl, (CCl3)SO2Cl,(C5H11)SO2Cl, (C2H4-Cl.)SO2Cl, CH2(SO2Cl)2, CH(SO2Cl)3, (C6H5) SO2Cl, (C6H11)SO2Cl, (C10H7)SO2Cl, (C6H4NO2)-SO2Cl, (C6H3Cl. Br.)SO2Cl,C10H5 (SO2Cl)3.  Oils may be freed from asphalt by adding the solvent at a high temperature and separating the precipitated asphalt, after which the solution is cooled to form naphthenic and paraffinic layers.  In selective extraction, the oil and solvent may flow in countercurrent and auxiliary solvents which (a) increase selectivity or (b) decrease selectivity, may be added.  Examples of (a) are low boiling hydrocarbons such as butane, propane, aromatic or hydroaromatic hydrocarbons or hydrocarbons containing substituted NO2, SCN, NH2, CO or OH groups, and of (b) are chlorinated hydrocarbons.  The raffinate may be finally treated with fullers earth or sulphuric acid.  Examples, (1) a heavy lubricating oil is separated into fractions by extraction at 10 DEG  C. with 1 1/2 volumes of a mixture of ethyl sulphuryl chloride and benzene, (2) an oil is de-waxed by dissolving the oil in a mixture of benzene sulphuryl fluoride and toluene, and cooling whereupon the precipitated wax is separated in a centrifuge and washed with the solvent mixture.
Patent GB-853008-A (GB)
Title: Polymers containing phosphorus
Inventor: KENNEY CHRISTOPHER NIGEL
IPC: C08F30/02
Filed: 1958-06-20
Abstract: Polymers containing phosphorus containing the repeating group <FORM:0853008/IV(a)/1> where x is 1, 2 or 3, are prepared by reacting phosphorus oxychloride with a vinyl Grignard compound at room temperature, or lower, in a solvent, e.g. tetrahydrofuran.  In examples polymers are prepared from vinyl magnesium bromide, vinyl magnesium chloride and phosphorus oxychloride.ALSO:Uranium is extracted from a neutral solution of uranyl nitrate, or a solution of uranyl nitrate in nitric acid, by shaking with a polymer containing the repeating group <FORM:0853008/III/1> where x is 1, 2 or 3.  The uranium is subsequently removed by shaking the polymer with sodium carbonate solution.
Patent GB-758225-A (GB)
Title: Method of mixing and transporting various substances
IPC: B65G33/26
Filed: 1954-07-06
Abstract: In a method of mixing and transporting various substances which enter into chemical reaction resulting in an increase in volume of the mixture, the substances are mixed and transported by means of screw conveyer the capacity of which is increased from the inlet to the outlet by increasing continuously or in stages the pitch of the screw when it has a constant diameter or by increasing continuously or in stages the diameter of the screw when it has a constant pitch.ALSO:In a method of mixing and transporting various substances which enter into a chemical reaction resulting in an increase in volume of the mixture, the substances are mixed and transported by means of a screw conveyer the capacity of which is increased from the inlet to the outlet by increasing continuously or in stages the pitch of the screw when it has a constant diameter or by increasing continuously or in stages the diameter of the screw when it has a constant pitch.
Patent GB-1339397-A (GB)
Title: Sanitary unit
IPC: E03D11/02
Filed: 1972-04-28
Abstract: 1339397 Sanitary closet bowls H G MOLLER 28 April 1972 [12 May 1971] 19825/72 Heading E1C A sanitary closet bowl, which may be combined with a wash hand basin 11, is made from deep-drawn plastics material and comprises a back plate 10, a seat portion 13 integral with the plate 10, a separate bowl portion 16, and a centring rirg 18, which cooperates with a flange 15 of the seat portion to centre the bowl portion with respect to the seat opening 14; the parts having glass-fibre polyester coatings 12 on their back surfaces and being secured together adhesively by these coatings. The centring ring 18 may be integral with the bowl portion 16 (Fig. 3, not shown).
Patent GB-317601-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/58
Filed: 1928-07-09
Abstract: 317,601. Ruau, F. F., and Molins Machine Co., Ltd. July 9, 1928. Cigarette-making-machines.-In apparatus for applying cork or like tips to a web of cigarette paper, means are provided for lifting the pressure roller from the gumming-roller when the machine stops, and for preventing return of the pressure roller, on restarting, until the gumming-roller has rotated sufficiently to take up a fresh supply of gum, the object being to prevent the paper from adhering to the gumming-roller when stoppage of the machine occurs, and consequent fracture of the web on re-starting. The invention is particularly applicable to tipping-apparatus of the kind described in Specification 251,322, in which a gumming-roller 1 is formed with an intaglio engraved portion adapted to take up gum from a roller 2, a pressure roller 5 being moved to press the paper web 23 on to the gummed portion of the roller 1, by a spring 11 acting in conjunction with a. bell-crank 8 and cam 6. The spindle 9 of the bell-crank is connected to an arm 12<a> and rod 12 to a bell-crank 13 bearing against a rod 14 engaging a lever 16 connected to the shaft 19 of the striking-gear. When the shaft 19 is actuated to stop the machine, the lever 16 is moved against the rod 14 as shown, so as to raise the pressure roller 5 from the paper web. The bell-crank 13 is locked in this position by a catch 20 which, when the machine is restarted, is not released until a cam 22 lifts the catch 20, this being timed not to take place until the gumming-roller has rotated sufficiently for the intaglio portion to take up a fresh supply of gum.
Patent GB-1381553-A (GB)
Title: Cellulose ether thickener for latex paint
IPC: C09D7/00
Filed: 1972-04-28
Abstract: 1381553 Hydroxyethylmethyl cellulose DOW CHEMICAL CO 28 April 1972 [29 April 1971] 19970/72 Headings C3A and C3F A water soluble cellulose ether having a thermal gel point above 100‹ C., a hydroxyethyl MS of 1À0-3À5 a methoxyl DS of 0À6-1À6 and a total degree of substitution of 1À4 to 2À4 and preferably a viscosity, in a 2% aq. solution, of 4000 to 50,000 cps at 20‹ C. are made by blending alkali cellulose with methyl chloride, followed by addition of ethylene oxide, all under carefully controlled conditions of temperature and concentration of reactants. The ethers are resistant to enzymic degradation and may be used in an aqueous coating composition, in which particles of a water-insoluble polymer such as polyacrylate or polyvinyl acetate, are dispersed in a solution of the ether. Surfactants, preservatives and pigments are also present.