baber/WOPTO huggingface dataset:
Patent GB-508773-A (GB)
Title: Improved apparatus for providing a current of air carrying a volatile substance
IPC: A21D2/02
Filed: 1939-01-26
Abstract: 508,773. Treating air with liquids ; nitrogen trichloride. KLEIJN, A. Jan. 26, 1939, No. 2724. [Class 55 (ii)] [Also in Group III] Apparatus for mixing an air current with a volatile substance evolved in a liquid by continuous additions of a suitable agent comprises a covered liquid tank 1 with the space above the liquid divided by a partition 2 into compartments A, B, a charging device 6 for the agent and an air inlet 5 in the cover of compartment A, a blower 8 with a suction inlet 7 and discharge outlet 9 with distributer 9<1>, transferring air from compartment A to beneath the liquid in compartment B, and an air outlet 10 in the cover of compartment B. Spent liquid and any precipitate formed by the reaction are removed through an outlet 3. Nitrogen trichloride for bleaching milling products may be generated by adding calcium hypochlorite to a solution of ammonium chloride containing sulphuric acid, and is continuously removed by the air current, calcium sulphate being periodically discharged through outlet 3.
Patent GB-982626-A (GB)
Title: Improved process for preparing lithium hypochlorite compositions
IPC: C01B11/06
Filed: 1963-01-22
Abstract: Lithium hypochlorite compositions are prepared from Li2SO4 solutions containing Na2SO4 and possibly K2SO4 by adding a stoichiometric amount of aqueous NaOH to give LiOH and additional Na2SO4, lowering the temperature, e.g. to 30-35 DEG  F. with or without dilution to crystallize out Na2SO4.10H2O, filtering, adding stoichiometric amounts of Cl2 and aqueous NaOH to form hypochlorite, and spray-drying the solution.  The starting material may be obtained by decrepitating spodumene, roasting with H2SO4, leaching the Li2SO4 formed with water, adding limestone to a pH of 6, filtering, removing Ca and Mg, and concentrating by evaporation of water. It may contain 120-270 g/l Li2SO4, 10-150 g/l Na2SO4, and 0-60 g/l K2SO4.  The NaOH solution is preferably 40-50% and in forming hypochlorite, an excess of 1/4 -\ba3/4 % is added (or LiOH may be used) to inhibit loss of Cl2. The hypochlorite solution may be fed at room temperature into a parallel flow spray drier in which inlet and outlet air temperatures are 380-420 DEG  F. and 200-240 DEG  F. respectively, and the composition is rapidly cooled to below 120 DEG  F., e.g. by separation in a cyclone and then carrying in chilled air to a second cyclone. The product may contain 35-40% available Cl2 and have compositions LiOCl, 32%; NaCl, 34%; Na2SO4 and K2SO4, 20%; water, 3-7%. Its particle size is 60-80m  and density 38-40 lbs./ft.3.  It may be mixed with up to 2% surfactants before or after spray-drying.ALSO:A lithium hypochlorite composition containing 35-40% available chlorine, a 3-7% moisture and consisting of 32% LiOCl, 35% NaCl and 20% Na2SO4 and K2SO4, is mixed with up to 2% surfactants, e.g. benzene-, toluene-, xylene-, dodecyl-, tridecyl-, tetradecyl and pantadecyl benzene sodium sulphonates; sodium sulphate, sodium phosphates and polyphosphates, abrasives, sodium silicates, and optical brighteners may also be incorporated to give products e.g. scouring powders, containing 4-8% available chlorine.ALSO:A bleaching composition containing 35-40% available chlorine is typically made up of 32% LiOCl, 35% NaCl, 20% Na2SO4 (optionally together with K2SO4) and 3-7% water.  It may be mixed with up to 2% surfactants, e.g. benzene-, toluene-, xylene-, dodecyl-, tridecyl-, tetradecyl- and pentadecyl-benzene sodium sulphonates and diluted with e.g. sodium sulphonate, sodium phosphates and polyphosphates, sodium silicates, and optical brighteners, to give products containing 4-8% available chlorine.
Patent GB-563891-A (GB)
Title: Improvements in and connected with electric regulators of the carbon pile type
IPC: G05B11/01
Filed: 1943-02-19
Abstract: 563,891. Automatic regulators. STONE & CO., Ltd., J., and NIXON, L. R. Feb. 19, 1943, No. 2773. [Class 38 (iv)] A carbon pile type regulator having a hingedly-mounted armature acting against a spring that compresses the pile and having an adjustment for the pile in relation to the armature, is fitted with a visual indicator-that shows whether the pile is correctly set. The armature a is attached to a casting d hingedly supported by resilient strips e, e<SP>1</SP> and attached by flexible links g to the pressure plate j which is mounted for linear motion on a bar m sumpported by bow springs m<SP>1</SP>. The compression spring k is attached to one hinge member d<SP>2</SP> of the casting d and the other hinge member d<SP>1</SP> carries a counterweight l on which the indicating device n is provided. This consists of a pointed plate co-operating with a curved frame member o on which a line o<SP>1</SP> is marked at the factory corresponding with the position of the arrow on the plate n when the pile is correctly set. If the setting of the pile is disturbed by wear or replacement, a screw-ring q is turned to move a pressure plate p at the rear of the pile in relation to the prate j until the indicator plate n is restored to its original position. Specification 548,388 is referred to.
Patent GB-538800-A (GB)
Title: Improvements in or relating to coke oven regulating apparatus
IPC: C10B21/10
Filed: 1940-02-14
Abstract: 538,800. Regulating fluid flow. KOPPERS CO. Feb. 14, 1940, No. 2852. Convention date, Feb. 15, 1939. [Class 135] A regulating device for adjusting the supply of fuel gas to the heating flues of underjet-fired coke ovens comprises a casing having at least three branches two 23, 24 of which are at an angle to each other and serve to convey the gas to the flue. A third branch is normally closed by a screwed plug 39 but which can be detached to give access to an orificed plug or nozzle 33 having a tapering screwed outer surface adapted to be screwed into the branch 23. The orifice is formed in a narrow partition 34 and the layer end is formed with a pentagonal socket 35 adapted to receive the similarly shaped end of a tool inserted through the branch 22. A further detachable plug 40 enables the chamber 41 to be cleaned. Specification 508,920 is referred to.
Patent GB-554393-A (GB)
Title: Improvements in gauging devices
IPC: B25H7/04
Filed: 1942-03-05
Abstract: 554,393. Surface gauges. ENGLISH ELECTRIC CO., Ltd., and BAIRSTOW, K. C. March 5, 1942, No. 2894. [Class 106 (ii)] [Also in Group XXIII] A channelled base 1 of magnetic alloy of high retentivity and permanently magnetized across its width has secured to it two upstanding members 2 through which slides a round rod 3 held in place by clamping screws 4. One end 3a of the rod is bent at right angles as shown, and the opposite end tapered to a point. The rod 3 or members 2 or both are of non-magnetic material such as brass.
Patent GB-804845-A (GB)
Title: An electro-magnetic vibratory contact rectifier
IPC: H01H50/76
Filed: 1957-01-28
Abstract: 804,845. Electromagnetic interrupters. KLEIN, A., and BACH, E. Jan. 28, 1957 [Jan. 28, 1956], No. 2908/57. Class 38 (5). In an interrupter for converting D.C. to A.C. having an armature 2 mounted on a spring 1 vibrated by a coil 3 energized through driver contacts 4 so that contacts 5 coact with counter contacts 6, each contact 6 is carried by a blade 8 riveted at 11 to a support 9 and is tensioned away from the support by an intermediate plate 7, the desired degree of tensioning being obtained by employing a plate 7 of appropriate thickness.
Patent GB-294851-A (GB)
Title: Improvements in or relating to installations for the dry cooling of coke
IPC: C10B39/14
Filed: 1928-01-31
Abstract: 294,851. Kilburn, B. E. D., (Sulzer FrÞres Soc. Anon.). Jan. 31, 1928. Cooling discharged materials. - Apparatus for the dry cooling of coke discharged from retorts a comprises a chamber d having a space into which the coke-trucks b are wheeled surrounded by vertical water-tubes e which are spaced from the walls of the chamber d and connected at their .ends to a collector g and steam drum f respectively. The chamber d is provided with entrance and exit doors h, i and with rails c having extensions k on to and from which the trucks b are moved bv means of wheeled transporting tables l. A modification is described in which the chamber d is enlarged to accommodate two trucks b side by side, additional water-tubes e being arranged in the space between the trucks.
Patent GB-456797-A (GB)
Title: An improved combined water closet and bidet
IPC: E03D9/08
Filed: 1935-05-16
Abstract: 456,797. Bidet-attachments for closets; closet-seats. SALVONI, I., 320, East 57th Street, New York, U.S.A. May 16, 1935, No. 3006/36. Divided out of 456,826. [Class 26] A bidet disposed upon a closet-basin has a forward portion 16 extending beyond the basin. In Fig. 1, the bidet rests directly upon the basin with the interposition of a rubber or like covering and is hinged on a cross-member 22 on which is also hinged a cover 23 having a catch 24 for securing to the bidet. The bidet may be supplied by pipes 27, 28 and have an emptying-plug; a closet seat 30 pivotally suspended from the side of the basin may also be provided. In Fig. 3, the bidet when lowered rests upon a closet-seat 61.
Patent GB-626051-A (GB)
Title: Improvements in or relating to gas control devices for heaters
IPC: G05D23/12
Filed: 1947-01-30
Abstract: 626,051. Fluid-pressure servomotor-control systems. BARRALETS, Ltd., BARRALET, J. R., and HENTSCH, R. A. Jan. 30, 1947, No. 3012/46. [Class 135] A gas control device for a water heater having a thermally-controlled relay valve controlling the gas supply to the main burner valve is so interconnected with an auxiliary valve controlling the gas supply to an auxiliary burner that, when the relay valve is fully open, thus resulting in the closure of the main burner valve, the auxiliary valve is partly open, and when the relay valve is moved towards closure the auxiliary valve is moved towards full opening to permit the auxiliary burner to compensate for small heat losses without the opening of the main valve. As shown, a casing 14 is divided into chambers 11, 20, by the diaphragm 12 of a diaphragm-actuated main burner valve 16 which controls the gas supply to the main burner 17 via a handcontrolled valve 18 and a thermally-controlled valve 19, the thermostat 39 of which is heated by the auxiliary burner 38. The chamber 11 is provided with a gas inlet, an outlet controlled by the valve 16 and a connection 22 to the underside of a spring-urged relay valve 25 connected to an auxiliary valve 32 and controlled by a fluid thermal unit 27, 29 responsive to temperature changes in the water supply system. The chamber 20 is provided with a bleed pipe 41 feeding a jet 40 and a connection 21 leading to the upperside of the relay valve. The auxiliary valve is disposed between passages 35, 34 interconnected by a byepass passage 51 and controls the gas supply to the auxiliary burner 38. In operation, the relay valve 25 is normally partly open to balance the pressure on the two sides of the diaphragm 12 to hold the valve 16 on its seat, whilst the auxiliary valve 32 is sufficiently open to compensate for heat losses in the system. Should a small fall in temperature occur, the auxiliary valve will move towards its full opening and the relay valve will move towards closure. Should a large fall in temperature occur by, e.g., the replacement of hot water by cold, the relay valve will close on its seat and the gas in the chamber 20 will be burnt by the jet 40 to reduce the pressure therein and permit the opening of the main valve 16, whilst the auxiliary valve closes cutting off the supply of gas to the auxiliary burner except for that passing through the byepass 51 to maintain .a pilot jet, permitting the cooling of the thermostat 39 and the opening of the valve 19 to pass gas to the main burner. Specification 629,231 is referred to.
Patent GB-1528101-A (GB)
Title: Process for the preparation of trans trans-muconic acid
IPC: C07C51/377
Filed: 1976-01-27
Abstract: 1528101 Trans,trans - muconic acid HOECHST AG 27 Jan 1976 [28 Jan 1975] 03074/76 Heading C2C Trans,trans - muconic acid is prepared by reacting a glyoxal acetal with ketene in the presence of an acid catalyst and treating the resulting dialkyl #,#<SP>1</SP>-dialkoxyadipate with an alkali. The acid may be a Lewis acid. Dimethyl #,#<SP>1</SP>-dimethozyadipate is prepared.
Patent GB-802984-A (GB)
Title: Improvements in and relating to sulfur burning
Inventor: SHIPMAN JAMES JOHNSTON
IPC: C01B17/54
Filed: 1956-01-31
Abstract: <PICT:0802984/III/1> Sulphur dioxide is prepared by feeding air and sulphur into a combustion chamber at such a rate as to establish a mass velocity in the chamber in excess of 1000 lb. per square foot cross-section per hour and burning the mixed air and sulphur while maintaining turbulent mixing by establishing a Reynolds number in excess of 5000 during burning, the mixing being maintained until the sulphur is substantially completely converted to sulphur dioxide, and the ratio by weight of air to sulphur per unit time being between 4.3 and 13.  Although not necessary at mass velocities above 2000 lb./sq. ft./hr., baffles, grids and vanes, special mixing nozzles, agitation means, and secondary air may be used in the combustion chamber to increase turbulence.  Molten sulphur and atomizing air are introduced, respectively, through 15, 17 in steam-jacketed nozzle 13 in ratio 8 : 1 into refractory-lined L-shaped cylindrical combustion chamber 21.  Air for burning is drawn through, and preheated in, jackets 25, and passes from blower 31 to ducts 27-29, which converge at 60 degrees to the chamber axis. The enlarged section 21a improves burning.  In alternative apparatus (Fig. 3, not shown), a rotary burner is connected to the combustion chamber through a mixer.  The sulphur from the rotary burner passes through the central clover leaf-shaped tube, while air, entering through controllable dampers passes round the outside, so that the mixer gives a swirling motion to the gases, while mixing the sulphur and air.  Solid sulphur can be burnt by conveying the sulphur, preferably 80 per cent of which passes a 40 mesh, in an amount of air less than that required for burning, and less than that at which explosion occurs, to the combustion chamber.  The preferred ratio of air to solid sulphur is between 1/3 and 3.
Patent GB-445971-A (GB)
Title: Improvements relating to window blinds for motor road vehicles
IPC: B60J1/20
Filed: 1935-01-31
Abstract: 445,971. Window blinds. PIPER, G. S., 27, Black Lion Lane, Hammersmith, NUTTING, J. G., Lacland Place, King's Road, Chelsea, and EDEN, G., 130, High Road, Chiswick, all in London. Jan. 31, 1935, No. 3149. [Class 52 (v)] A spring roller blind 3 for the rear window 2 of an automobile has its cord 12 secured to a projection 11 on an endless chain or band 7 driven by an electric motor 4 through a sprocket 5. The motor 4 runs in a constant direction and is energized from the car battery when a suitably situated switch 13, Fig. 3, is momentarily depressed, movement of the band 7 to move the blind 3 from one of its extreme positions causing a projection 8 on the band 7 to release contact 9a and close the motor circuit through contacts 9 until the blind reaches its other extreme position when contacts 9 are again separated by a second projection 8. The blind remains in this position until switch 13 is again depressed when it is moved to its other position.. The switch 13 may control energization of a relay coil which closes the motor circuit and which is energized through an alternative circuit when the contacts 9 are closed. According to the Provisional Specification a warning light may be energized through a contact on the chain 7 which co-operates with fixed contacts arranged near the top and bottom of the chain when the blind is in raised or lowered position.
Patent GB-1093892-A (GB)
Title: Aryloxy silicon compounds
IPC: C10M169/00
Filed: 1965-01-25
Abstract: Hydraulic fluids and lubricants comprise arloxysiloxanes of the formula <FORM:1093892/C4-C5/1> or of the formula <FORM:1093892/C4-C5/2> wherein R and R1 are each an alkyl group of 1 to 5 carbon atoms, or an aryl group of not more than 8 carbon atoms, R11 is the same as R or R1 o a hydrogen atom, and n is 1 to 10.ALSO:Silicon-containing compounds of the formula <FORM:1093892/C3/1> or of the formula <FORM:1093892/C3/2> wherein R and R1 are each an alkyl group of 1 to 5 carbon atoms, or an aryl group of not more than 8 carbon atoms, R11 is the same as R1 or R or a hydrogen atom, and n is 1 to 10, are prepared by (1) reacting a dihalosilane R2SiX2, where X is chlorine, bromine or iodine, or a dihalodisiloxane (R1)2X.Si.O.X.(R1)2 with a compound of formula <FORM:1093892/C3/3> to form an intermediate product, and reacting the intermediate with m-phenoxyphenol; or (2) reacting the dihalosilane or dihalodisiloxane with m-phenoxyphenol to form an intermediate product, and thereafter reacting the intermediate with the dihydroxy compound.  Suitable dihalosilanes include (CH3)2SiCl2, (n-C3H7)2 SiCl2, (C5H11)2SiCl2, (C6H5)2SiCl2 and the corresponding bromine and iodine derivatives. Suitable dihalodisiloxanes include Cl(CH3)2SiOSi(CH3)2Cl Cl(C2H5)2SiOSi(C2H5)2Cl Cl[(CH3)2CHCH2CH2]2SiOSi [(CH3)2CHCH2CH2]2Cl and <FORM:1093892/C3/4> and the corresponding bromine and iodine derivatives.  Suitable dihydroxy compounds are resorcinol, hydroquinone, dihydroxy toluene, dihydroxy biphenyl, and catechol.  Uses: Lubricants, hydraulic fluids, heat transfer media, transformer oils.
Patent GB-1368690-A (GB)
Title: Industrial burners
IPC: F23D14/12
Filed: 1972-01-24
Abstract: 1368690 Burners SELAS CORP OF AMERICA 24 Jan 1972 [16 Feb 1971] 3320/72 Heading F4T  A gaseous fuel burner comprises a burner block 3 for insertion in a furnace wall 1 the block 3 having a cup-shaped depression 4 with an annular recess 5 at its base in one face and an opening 6 extending from the cup base to the opposing face, and having a ridge 8 on the inner surface proximate the depression, a pair of tubes 14 and 15 having discharge ends terminating at diametrically opposed points between the ridge and the depression base for projecting fuel tangentially and normal to the axis of the opening. The opening may receive a cylindrical member 6 attached to the outer furnace wall and including the ridge 8. Two curved discharge tubes 14, 15 may extend from a central axial fuel supply pipe 12. Alternatively, the opening in the block 3 may have a cylindrical portion of reduced diameter (23), Fig. 4 (not shown), the edge of the portion forming the ridge and extending helically relative to the cylinder axis, tubes (29) running axially in grooves (25) in the inner surface of the cylindrical portion and terminating in nozzles (27). Combustion air is controlled by a shutter 17 of diameter larger than the opening, lined with sound absorbing material 21, e.g. glass wool, and arranged to slide axially relative to the opening.
Patent GB-546005-A (GB)
Title: Improvements in or relating to combined lighting, heating and ventilating systems
IPC: F24F13/078
Filed: 1941-03-13
Abstract: 546,005. Air conditioning apparatus; lamps combined with ventilating apparatus. CAMPBELL, H. G., SKINNER, G. D., and BENJAMIN ELECTRIC, Ltd. March 13, 1941, No. 3408. [Class 137] [Also in Group XI] In a combined lighting and air conditioning device the lighting is effected by electric discharge lamps which are controlled by an inductance, resistance or capacitance constituting or forming part of a device for conditioning or circulating the air. The air is conditioned by heating, cooling, ozonizing or sterilizing, and for heating an electric, water, steam or gas radiator may be employed. For sterilizing, use is made of ultraviolet rays from the lamps. In Fig. 2, the lighting unit comprises three tubular gas discharge lamps 1, 2, 3 disposed below a reflector 4 above which is a casing 5 through which air is caused to circulate by a fan 10 from inlets in the upper wall through lowered outlets 6. Heaters 7 are disposed behind the louvres, and below deflector plates 8 is an ozone generator 9 energized by a transformer 91, the whole fitting being suspended from the ceiling by rods 12. The motor 11 driving the fan is a three-phase motor whose windings are used as lamp ballasts. Part of the air from the fan is heated and passes through the louvres, and part passes over the ozonizer and through openings in the lower part of the casing 5, providing a screen of relatively cool air between the lamps and the heated air above, so that the lamps are prevented from overheating. In Fig. 4, the device is built into a ceiling a, and a portion 14 of glass or other transparent material which may have a fluorescent coating is disposed below a casing 13 in which a fan 18 draws in air through louvres 15 and delivers it past a heater 17 to outlet louvres 15. The vapour discharge lamps 20 provide ultra-violet rays which sterilize a part of the air current.
Patent GB-1465070-A (GB)
Title: Process for concentrating by flotation lead and silver in products which contain oxidised lead
IPC: B03D1/06
Filed: 1974-01-25
Abstract: 1465070 Froth flotation processes ASTURIANA DE ZINC SA 25 Jan 1974 [27 Jan 1973] 03698/74 Heading B2H A finely divided product containing lead sulphate is subjected to flotation in an acidic medium containing a sulphurising agent e.g. sodium sulphide, to concentrate the lead sulphate in the floated product. Xanthates and/or dithiophosphates may be used as collectors and ammonium sulphate may also be added. Any silver present may be floated together with the lead sulphate or it may be floated off separately together with zinc and elemental sulphur in an earlier flotation process. In the latter embodiment, the silver is floated in an acidic medium in the presence of reagents which do not collect lead and a dispersant such as sodium silicate, and the residues from the silver flotation treated with sodium sulphide before passing to the flotation cells for the flotation of the lead sulphate. Each flotation process may be carried out in several stages.
Patent GB-539203-A (GB)
Title: Improvements in or relating to drives of the two electric motor type for printing presses and other machines
IPC: H02P5/69
Filed: 1940-02-29
Abstract: 539,203. Control of two motors. IGRANIC ELECTRIC CO., Ltd. Feb. 29, 1940, No. 3794. Convention date, March 31, 1939. Drawings to Specification. [Class 38 (iii)] A main driving motor and a small starting motor are mechanically connected by an electromagnetic clutch, so that both motors can be reversed. The usual cross-lead controller in its travel first switches on the small motor with the clutched energized and at about half-travel, switches off the small motor, de-energizes the clutch and switches on the main motor.
Patent GB-248160-A (GB)
Title: Improvements in or relating to seats, benches and the like
IPC: A47C17/26
Filed: 1925-02-11
Abstract: 248,160. Harrison, J. A., and Pickford, E. H. Feb. 11, 1925. Ambulances.-In ambulances having a seat of the kind comprising a rotatable member 6 with a seating surface 7 on one side and means for attaching a mattress or stretcher 24 to the other side, a supporting lug 16 and a locking lug 17 are provided, together with bolts 19, 20 which can be moved into the path of the locking lug 17 to hold the seat firmly with either side uppermost. The supporting brackets 10, 11, which are vertically adjustable by means of bolts 12 and engaging projections and recesses 13, are provided with supports 14, 15 for the lug 16, and with a groove 18 for the passage of the lug 17, and the bolts 19, 20, which are preferably tapered, may be mounted upon a common slidable carrier 21. The axis of rotation of the seat may be eccentric, so that when the mattress side is uppermost, the ledge 27 of the ambulance or other vehicle 28 forms a continuation thereof, the ledge acting as an additional support when the seating surface is uppermost. A strecher 24 may be held in position by eyelets 25 and spring hooks 26 engaging the handles.