baber/WOPTO huggingface dataset:
Patent GB-804312-A (GB)
Title: Unsaturated diamine products and their preparation
Filed: 1957-05-20
Abstract: Products corresponding to the addition of two amino radicals to a dimer of a conjugated diene are prepared by reacting said diene with free amino radicals generated in a system known to be capable of generating such radicals, the reaction being conducted in an aqueous reaction medium containing more than 1/3 parts and preferably 1 to 2 1/2 parts by volume of an organic solvent for the diene to one part of water.  Preferred dienes are aliphatic dienes containing 4 to 8 carbon atoms, those specified being butadiene, isoprene, dimethyl butadiene, and pentadienes such as methyl-1:3-pentadienes.  The organic solvent for the diene is preferably a mutual solvent for the diene and the aqueous components of the reaction mixture, such as butanol, tert.-butanol, ethanol, isopropanol, dioxane, 2-methoxy ethanol and acetic acid.  The reaction medium is preferably acidic and is preferably maintained at a normality of at least 1.5 based on the normality of the acid in the water present in the final reaction mixture.  The free amino radicals are preferably generated in situ by the addition of hydroxylamine or the nitrate or hydrochloride thereof and a metal salt that undergoes oxidation-reduction reaction with the hydroxylamine to form free amino radicals to the solution of the diene.  The addition of the hydroxylamine and the metal salt is preferably conducted concurrently.  Preferred oxidation-reduction salts are titanous chloride, vanadous chloride and stannous chloride. The diamine product may be obtained from the aqueous phase portion of the reaction product by treatment with alkali and extraction with a non-aqueous solvent such as diethyl ether.  Alternatively the diamine may be isolated as the hydrochloride.  In the examples butadiene is converted to octadienediamine-1 : 8, which is isolated both as such and as the hydrochloride; octadienediamine-1 : 8 is hydrogenated to the corresponding octanediamine-1 : 8, which is isolated as the hydrochloride; and isoprene is converted to dimethyloctadienediamine, which is isolated as the free base.
Patent GB-296775-A (GB)
Title: Improvement in plants for washing coal and other minerals
IPC: B03B11/00
Filed: 1928-05-31
Abstract: 296,775. France, A. Sept. 9, 1927, [Convention date]. Inclined-trough apparatus; upward-current classifiers.-The discharge slot of a launder for washing coal &c. is controlled by a curved shutter c of adjustable shape mounted on a horizontal pivot a, the material discharging between the shutter and a pivoted flap u or a rotary drum or a fixed partition t. The shutter may consist of two plates adjustably inclined to one another, or of two relatively slidable sections, so that its length may be adjusted. The shutter may be actuated by a float f in the launder through a rod l<1> and a weighted lever l, the latter engaging a slot in the rod so as to allow independent movement of the shutter for the passage of large particles. The quadrant g is graduated to indicate the position of the shutter. In the form shown in Fig. 5 the discharge pocket includes a horizontal baffle m slidable in its own plane. The baffle m may be parallel to the partition t. Specification 11217/15 is referred to.
Patent GB-630389-A (GB)
Title: Improved heating stove
IPC: F24B1/26
Filed: 1947-06-17
Abstract: 630,389. Stoves. CAUCHANER, D. June 17, 1947, No. 15968. [Class 126] A stove of the type in which the furnace of the stove is entirely devoid of any conduit or opening in communication with the room in which the stove is placed, in respect of which it is tightly sealed, is characterised by comprising an ash collecting chamber L directly arranged below the furnace F and separated from this latter by means of a grate G, said chamber L being provided with an opening for the removal of the ashes; means for tightly closing the mouth or opening of the furnace, consisting of two or more doors H, I, of which one, at least, forms a tight seal, said doors being so arranged that, after closing the same, air chambers will be formed therebetween; means D for tightly closing the opening of the ash collector L; a heating coil R for the circulation of water, arranged on the walls and the roof of the furnace, and an oven formed by a chamber E transversely arranged at the base of the flue A, accessible from the sides of the stove and provided with means J for closing the entrance openings thereof. The flue A serves to supply the air for combustion which passes downwardly in countercurrent to the ascending waste gases.
Patent GB-378571-A (GB)
Title: Improved method of and means for mounting switch rails or blades for railways
IPC: B61L5/02
Filed: 1931-06-01
Abstract: 378,571. Railway switches. WILLIAMS, L. WYNN-, Haughton Bridge Works, Darlington, Co. Durham. June 1, 1931, No. 15973. [Class 104 (i).] The switch rail 1 is mounted on a stretcher bar 2, the ends 7 of which are slidably supported by yokes 10 spring mounted in brackets 13 on the running rails R. The stretcher bar is horizontally flexible and vertically rigid. In another form the surface 11 of the bar is inclined so that the rail 1 rises as it moves away from the rail 8. In another form the rail 1 is supported by a roller running on an inclined surface on the stretcher bar.
Patent GB-138381-A (GB)
Title: Improvements in elevator and the like control elements of aircraft
IPC: B64C13/30
Filed: 1918-10-02
Abstract: 138,381. Page, F. H. Oct. 2. 1918. Steering and balancing; planes, construction of.-The elevators, rudders, or ailerons 5, 6 of an aeroplane are pivoted about axes 7, 8 situated at a greater distance from the trailing edge of the adjacent fixed surface than the thickness of that edge, and are so shaped or tapered that their front edges do not project beyond the fixed plane in any position. Where twin control surfaces are used, they are provided with single king- posts 11, 12, projecting towards one another, for the attachment of control cables 13.
Patent GB-529424-A (GB)
Title: Improved protective screens, particularly for doors and windows, for use in air raids
IPC: E06B9/01
Filed: 1939-05-31
Abstract: 529,424. Window guards. HOLDEN, W. F. C., and OHUBB & SON'S LOCK & SAFE CO., Ltd. May 31, 1939, No. 16027. [Class 20 (iii)] A protective screen is built up of interlocking units each comprising a sheet of metal with its upper edge bent over and its lower edge bent up so as to form oppositely directed hooks b and c on opposite sides of the sheet, and the hooks are of such length that, when the units are assembled to form the screen by interlocking the hooks as' shown, four thicknesses of metal are provided at each point of the screen. The top element is hooked over a rod f and the lower end of the screen may swing if desired or be hooked over another rod.
Patent GB-644190-A (GB)
Title: A wheeled toy
IPC: A63H7/04
Filed: 1948-06-15
Abstract: 644,190. Wheeled toys. MILLER, A. M., and McGOWAN, R. June 15, 1948, No. 16061. [Class 132 (iii)] A wheeled toy comprises a main element which may be in the form of a parent figure cooperating with minor elements, e.g. babies of human or animal shape or dolls, so that, when the toy is pushed along, a crank and connecting rod o, p cause the minor elements to move up and down thereby causing a captive ball u or other object to be projected in turn from one minor element to the other. The legs i i of the main figure may also be actuated by the connecting rod, and the head a may be pivoted to swing from side to side. In Fig. 4 (not shown) doll type figures a<SP>1</SP> a<SP>1</SP> are mounted on either side of a main stand.
Patent GB-203766-A (GB)
Title: Improvements in or relating to means for automatically stopping the motors of automobiles and like vehicles
IPC: F01L1/00
Filed: 1922-06-10
Abstract: 203,766. Varliaud, L., and Bordes, F. June 10, 1922. Stop-gear operated by driver leaving his seat; controlling different functions by same lever.- When the driver leaves his seat or leaves the gear lever in neutral the supply of fuel to the carburettor or to a small tank placed between the main tank and the carburettor is cut off automatically, so that the engine stops when the petrol in the carburettor and the small tank, if the latter is used, is exhausted. The petrol supply to a float chamber A<1>, which may be that of the carburettor, is controlled by a needle valve D' which is normally operated by a float B'. The valve may also be closed against the action of a spring O<1> by a lever E<1> having a projection M<1> which, in the position shown, bears against a ball G' resting on a spring H' on the top of the valve. The lever E' is connected, as by flexible means F', to the driver's seat or to the gear lever, so that when the seat is empty or the gear-lever is in neutral the valve is closed. When the gear-lever is moved to its extreme gear positions, a stop P' or P<2> comes in contact with a plate R' fixed to the spring O<1> and puts this spring out of action. In a modification, the small tank between the main tank and the carburettor has no float but comprises simply a closed receptacle having an inlet valve closed by a connection to the driver's seat or the gear-lever. The connection between the tank and the gearlever &c. may comprise a lever having a removable pin maintained in position by a seal, so that when the seal is broken the pin may be removed and the tank refilled.
Patent GB-1435752-A (GB)
Title: Soil working machines
IPC: A01B63/10
Filed: 1973-06-14
Abstract: 1435752 Soil working machines KOEHRING CO 14 June 1973 [5 July 1972]16175/75 Divided out of 1435751 Heading AIB [Also in Division G3] The description is substantially the same as that appearing in Specification 1435751 but the claims are directed to the rotor depth control arrangement.
Patent GB-424604-A (GB)
Title: Improvements in means for controlling automatically the supply of air under pressureto steam generator furnaces
Filed: 1934-05-31
Abstract: 424,604. Regulating air supply to furnaces. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. May 31, 1934, No. 16235. Convention date, May 31, 1933. [Class 51 (i)] In a forced draught steam generator furnace, the blower that produces the air pressure is driven by an exhaust gas turbine and a supplementary motor the power output of which is regulated by an inertia governor driven by the main engine using the steam. As shown in Fig. 1, the blower 6 is driven by an exhaust gas turbine 7 and a continuous current motor 8 receiving current from a Leonard set comprising a generator 9 having an exciter 11 and driven by a three phase motor 10. An inertia governor 3 driven by the main engine 2 controls the pressure of oil supplied by a pipe 4 to a piston 5 connected to a regulator 12 which varies the speed of the motor 8. Fig. 2 shows a modification wherein the supplementary motor is a steam turbine 14 the supply of steam to which is controlled by a valve 13 operated by the piston 5 under the control of the governor 3. The oil pressure supplied to the piston 5 may be led from a pump driven by the main engine the pressure of the oil being controlled by the governor.
Patent GB-253363-A (GB)
Title: Improved paper trimmer
IPC: B26B27/00
Filed: 1925-06-24
Abstract: 253,363. Harding, W. S. June 24, 1925. Cutting - appliances. - An appliance for trimming the selvedge edge of wall-paper &c. by means of coacting rotary cutters 3 has a channel-shaped edge guide 6 with an extension 7 formed with rack-teeth engaging a pinion actuated by an adjusting knob 11. The extension slides in a groove in the frame 1. A plate 4 attached to the frame deflects the waste portion Specification 10515/04 is referred to.
Patent GB-981656-A (GB)
Title: Removal of carbonyl sulphide and organic combined sulphur from gases containing olefines
Inventor: SCHMIDT HANS WILHELM
IPC: C07C7/11
Filed: 1963-04-25
Abstract: <PICT:0981656/C4-C5/1> Carbonyl sulphide and organic combined sulphur are removed from olefin containing gases by washing under superatmospheric pressure with a caustic alkali solution of 2 to 6% by weight of the total weight of the solution at 50 DEG  to 110 DEG C. in one or more reaction vessels whose exchange surface is not less than 2 sq. m./cu. m. of the hourly throughput of gas.  Starting materials used may be obtained by thermal or autothermal cracking of petroleum or fractions thereof.  Preferably the process takes place at 85 DEG  to 95 DEG  C. at a pressure of 10 to 35 atmospheres. As shown, an olefin containing gas having the composition 8.7% CO, 14.3% H2, 5.1% N2, 25.3% CH4, 8.0% C2H6, 0.4% C3H8, 29.8% C2H4, 6.8% C3H6 and 1.6% C4H8 is introduced through pipe 1 and contacts in absorption tower 2 caustic soda solution supplied in countercurrent flow through pipe 6.  Tower 2 is filled with 35 mm. steel rings to a depth of 15 m., the internal diameter of the tower being 1.3 m., so that an exchange surface of about 4 sq. m./cu. m. of gas results.  Purified olefin containing gas passes out through line 3 and the caustic soda solution is recycled through retention tank 8, pump 9 and heater 5. Spent liquor may be withdrawn from the system through pipe 10 and used for a preliminary purification step and an equivalent volume of fresh caustic soda solution supplied through pipe 4.  The carbonyl sulphide and organic combined sulphur can thus be removed to the extent of 90% or more.  Columns having suitable baffles or a packing of conventional tower packing, e.g. packed columns, bubble tray columns and bubble columns are also suitable as reactors in the process of the present invention, which may be continuous or batchwise.
Patent GB-1294312-A (GB)
Title: Improvements in and relating to intruder alarm systems and apparatus therefor
Inventor: IVE GOODWIN ALFRED GEORGE
IPC: G08B13/22
Filed: 1969-03-28
Abstract: 1294312 Intruder alarms G A G IVE 17 June 1970 [28 March 1969] 16302/69 Heading G4N In an intruder alarm, a test circuit comprises a relay RL2 energizable in a TEST position 2 of switch SW1, relay RL2 being arranged to inhibit operation of the main alarm 5 but to allow an auxiliary alarm 6 to operate if intrusion conditions are applicable in the TEST position 2 of switch SW1. The intrusion detection arrangements may be of the contact-making type arranged to close contacts RL1/1 upon intrusion. When the premises are to be vacated, SW1 is set to the TEST position 2 so that RL2 will be energized if any of the intrusion detection contacts are not properly set. This energization will be detected by indicator 6. SW1 is set to its ON position 3 when the intrusion detecting contacts have been properly set. Alternatively, RL2 may be energized whenever SW1 is set to the TEST position 2 but can only be reset if the system is in a non-alarm condition.
Patent GB-283087-A (GB)
Title: Improvements in or relating to the treatment of leucite and like minerals
IPC: C01F7/66
Filed: 1926-06-29
Abstract: 283,087. Spence & Sons, Ltd., P., and Craig, T. J. I. June 29, 1926. Alkali metal compounds, obtaining from complex silicates.-A substantially neutral solution obtained from leucite or similar materials by treatment thereof with nitric acid, or a solution rendered basic by heating to drive off some free and combined nitric acid or bv treatment with potash or alumina, is cooled under regulated conditions of temperature and specific gravity to crystallize and remove potassium nitrate only; aluminium nitrate is then separated from the remaining solution by the addition of nitric acid, and the remaining liquor preferably used for the treatment of a fresh batch of mineral on the countercurrent principle whereby the process may be made cyclic. The potassium nitrate crystals are systematically washed, as with a saturated solution of potassium nitrate, and dried, and the aluminium nitrate is washed with nitric acid and either heated to produce alumina and oxides of nitrogen, or otherwise treated to form aluminium salts and nitric acid. Iron may be precipitated from the solution before or after the separation of potassium nitrate, either as a basic ferric potassium sulphate by heating in the. presence of aluminium or potassium sulphate and a suitable insoluble body such as finely ground leucite residues, or by digestion with an oxide of manganese, tin or antimony. If desired, in the first step of the process, the solution mav first be cooled sufficiently to deposit crystals of both aluminium and potassium nitrate, and be then warmed to redissolve the aluminium nitrate; or the separated mixed crystals may be treated with a saturated solution of potassium nitrate to dissolve out aluminium nitrate and leave substantially pure potassium nitrate. Specification 230,045 is referred to.
Patent GB-889664-A (GB)
Title: Electrostatic alphanumerical printer with image transfer mechanism
IPC: G03G15/32
Filed: 1958-05-21
Abstract: 889,664. Selective printing processes. RANKXEROX Ltd. May 21, 1958 [June 6, 1957], No. 16354/58. Classes 100(2) and 100(4) An electrostatic selective printer comprises a constantly rotating character drum 13 which when pulses are received by electrodes 16 from a block 17 causes electrostatic images of metallic elements 15 to be formed on an endless tape 10 of flexible material of high resistivity. If the tape is fed continuously the drum 13 is set askew so that a straight line of images is formed. The images are developed by powder falling over a roller 12 at 21 and are then transferred to a paper strip 22 by a roller 24 given a stronger charge of opposite polarity to that of powder images. After transfer the images are fused by heating elements 27 and the record strip 22 is then taken up on a roller 25. After the images have been transferred the web 10 is cleaned as by brushes 28 and is then given a preselected uniform charge at a station 20 before again reaching the drum 13. In a modification the tape 10 is replaced by a metallic band having a thin insulating layer coated thereon and the drum 13 is replaced by a drum having a series of character rings connected to commutator rings but insulated from each other. In this example the drum is set straight across the band which is fed intermittently line by line. In other modifications the tape is replaced by a metallic drum having an insulating surface and the characters are formed by a pattern of dots either by lines of five pins actuated sequentially to form characters on a continuously moving drum or by seven rows of five pins actuated simultaneously for each character. Specifications 675,398, 888,438 and 889,663 are referred to.
Patent GB-251469-A (GB)
Title: Improvements in or relating to cooking apparatus, boilers, water baths, liquid heaters and like apparatus
IPC: G05D23/12
Filed: 1925-06-25
Abstract: 251,469. Lambert, F. T., and Perrett, I. G. June 25, 1925. Safety - valves; fluid actuated fuel valves for water heaters.- In automatic means for controlling the heat supplied to cooking apparatus, boilers and the like in which liquid is heated by gaseous or liquid fuel and the burner controlled by a flexible diaphragm subjected to the pressure of the steam or vapour an air leak is provided which closes after the air has been driven out and under influence of the steam or vapour pressure. The water bath of the cooker a is heated by a gas-burner b the supply to which is regulated by a grooved plunger c actuated by a diaphragm f the lower side of which is subjected to the steam pressure by a tee piece e also connected to a cylinder h containing a safety valve i. The valve i rests on a seating h<1> and is hollowed to receive a ball j. When heating commences air escapes through the hollow stem i<1>, but when the generation of steam is too rapid to escape through an orifice i<4> the ball j is carried upwards against its heating i<3> and the steam pressure caused to act on the diaphragm until the safety valve i is raised from its seating. On cooling the ball drops and re-admits air, thus preventing a sub-atmospheric pressure from being established in the boiler.
Patent GB-862568-A (GB)
Title: Fluid moving means and propulsion device
IPC: F02K5/00
Filed: 1957-05-23
Abstract: 862,568. Propellers. QUICK, T. E. May 23, 1957, No. 16440/57. Class 114. [Also in Group XXVI] A propulsion device comprises an elongated streamline body the forward portion of which comprises a propeller having a conoidal hub, the apex of which is disposed forwardly, the rear portion of the body housing means for rotating the propeller, each propeller blade being for at least a major portion of its length a flat plate disposed parallel to the longitudinal axis of the hub, and the blades having a greater radial depth towards the forward end than towards the rear. An aircraft propeller comprises a coniodal spinner 103 carrying flat blades 104 which decrease in radial depth towards their downstream ends and each extend in a plane through the axis of rotation. The spinner 103 is connected to an inner cone 116 by means of webs 119 to provide an annular passage for the supply of air to the gas turbine jet-propulsion engine 102<SP>1</SP>. In a modification the inner cone 116 and webs 119 are omitteed, and the engine nacelle 101 is of larger diameter than the spinner and overlaps the spinner to provide an annular passage for the intake of air to the engine. In another embodiment, in which the engine is of reciprocating type, whirl-removing stator blades are mounted on the outside of the engine nacelle, and the propeller blades may be curved at their downstream ends in a direction opposite to that of rotation.
Patent GB-732839-A (GB)
Title: Decorative sheet rubber materials
Inventor: CANTOR ROBERT
IPC: B29C37/00
Filed: 1952-07-01
Abstract: Decorative sheet rubber material comprises a backing sheet of vulcanized rubber having a layer of cured crumb rubber embedded in the surface thereof with the external surface of the crumb lying in substantially the same plane as the surface of the backing sheet. The sheet material is preferably produced by pressing particles of cured crumb rubber into a surface of a backing sheet of uncured rubber and vulcanizing in a vacuum mould.  The crumb may be of different colour from the backing sheet and the ratio of the thickness of the backing sheet to the particle size of the crumb should be 1 : 3/4 to 1 : 1/2 .  In an example a car carpet is made by wiping a sheet of uncured black rubber sheet of 1.4 mm. thickness with a solvent and then depositing crumb rubber of 0.7 to 1.0 mm. to cover the sheet completely.  The sheet was then passed through pressure rolls and then the sheet laid on a foraminous vacuum moulding plate with the crumb side in contact with the plate and vacuum applied for 1 minute; vulcanization was effected for 4 minutes at 60 lbs. per sq. inch.
Patent GB-568226-A (GB)
Title: Improvements in or relating to means for stropping razor blades
IPC: B24D15/08
Filed: 1943-10-08
Abstract: 568,226. Stropping razor blades. WILKINSON SWORD CO., Ltd., RANDOLPH, H. B., and WATERS, A. Oct. 8, 1943, No. 16532. [Class 60] A device for stropping razor blades without removal thereof from the razor frame comprises a U-shaped frame b carrying, on rods f, rollers c, d, e, over which a strop a is led, as shown in Fig. 1. Slidable on the frame b is a slide o supported by studs p secured to the frame b and passing through slots o<1>, 02 in the slide ; the slide has thereon parts q, r to support a safety razor frame j carrying a blade h, a part s pivoted on the part q serving to lock the razor in position. In operation, the device is moved to and fro along the strop by means of the frame j, the blade thus moving, at each reversal of direction, to present one or other side of its edge to the strop, as shown. The rollers may be omitted, the strop being guided by the rods f; the slide may be capable of slight sideways. movement to ensure alignment of the blade with the strop.