baber/WOPTO huggingface dataset:
Patent GB-1124547-A (GB)
Title: Production of urea
IPC: C07C273/04
Filed: 1967-04-24
Abstract: Urea is obtained by reacting CO2 with an amount of NH3 in excess of the stoichiometric amount under a urea-synthesizing temperature and pressure in a first urea-synthesis zone to form a first urea-synthesis effluent containing urea, unreacted NH3, unreacted CO2, and H2O, reducing the pressure of said first effluent to a urea-synthesizing pressure lower than the pressure in the first urea-synthesis zone in order to separate the excess NH3 contained in the said synthesis effluent, bringing the urea-synthesis effluent having the excess NH3 separated therefrom into contact with the separated excess ammonia to drive off the unreacted NH3 and CO2 as a first gaseous mixture and to leave a first aqueous solution containing urea, introducing said first gaseous mixture into a second urea-synthesis zone maintained at a urea-synthesizing temperature and pressure to form a second urea-synthesis effluent containing urea, unreacted NH3, unreacted CO2, and water, with gaseous NH3 escaping out of the said second urea synthesis effluent, reducing the pressure of the said second urea-synthesis effluent to drive off the unreacted NH3 and CO2 as a second gaseous mixture and to leave a second aqueous solution containing urea, absorbing at least a part of the said second gaseous mixture in an absorbent chosen from H2O, an aqueous solution of NH3 and an aqueous solution of urea, recirculating the resulting absorbate to the said second urea-synthesis zone, liquefying the gaseous NH3 escaping out of the second urea-synthesis zone, recirculating the resulting liquid NH3 to the first urea-synthesis zone and obtaining urea from the said first and second aqueous solutions containing urea.  A suitable form of apparatus for carrying out the process is described.
Patent GB-1419164-A (GB)
Title: Liquid coating compositions
IPC: C09D5/10
Filed: 1973-04-19
Abstract: 1419164 Coated products DIAMOND SHAMROCK CORP 19 April 1973 [21 April 1972] 18903/73 Heading B2E [Also in Division C3]  A composition comprising zinc plates of specified size, hydroxyethyl cellulose, chromic acid, a polyether wetting agent and diethylene glycol, all dissolved or suspended in water, is used to coat bolts. The bolts are cleaned by immersion in a solution of KOH and K 3 PO 4  at a temperature of 150‹ to 180‹F. The clean bolts are thus coated by dipping in the coating composition. The coating is cured by heating at 550‹F for 20 mins. The coated bolts are found to have 1500 mg/sq ft of coating.
Patent GB-789063-A (GB)
Title: Improvements in or relating to vibrating rollers
Inventor: COLLS ERIC VICTOR
IPC: E01C19/28
Filed: 1955-06-30
Abstract: 789,063. Road rollers. AVELING- BARFORD, Ltd. June 27, 1956 [June 30, 1955], No. 18918/55. Class 6(1). A vibrating roller is characterized in that the vibratory force applied to the roller body 1 is developed by substantially linear reciprocation, in a vertical plane, of a mass 27 by a motor 12. As shown, the mass 27 is pivotally suspended by links 19, 19A from eccentric portions 22, 23 of a shaft 13 on which the roller is freely mounted and which is driven from the motor 12 by belt and pulley drive 17. A guiding handle is connected to the roller frame. The mass may be divided into two parts and fitted outside the roller, the two parts being confined to reciprocation in a vertical plane by engagement with guides mounted in the roller frame.
Patent GB-855494-A (GB)
Title: Improvements in dyeing textile yarns with vat and/or sulphur dyestuffs on skein yarnor spray dyeing machines
Inventor: BLUM ADOLF
IPC: D06P1/22
Filed: 1959-06-03
Abstract: In the dyeing of textile yarns with vat or sulphur dyestuffs on skein yarn or spray dyeing machines, improved results are obtained by employing as the reducing agent (a) an alkali-metal or ammonium salt of a linear or branched hydroxyalkyl sulphinic acid with 2-4 carbon atoms in which the hydroxyl group and the sulphinic acid group are attached to the same carbon atom or (b) a derivative of ammonia which contains at least once, directly attached to the nitrogen atom, the radical of an alkali-metal or ammonium salt of a linear or branched alkylsulphinic acid with 2-4 carbon atoms in which the nitrogen atom and the sulphur atom are attached to the same carbon atom, or a mixture of the two salts. Specified derivatives of ammonia are the reaction products of the alkali-metal or ammonium salts of a hydroxyalkyl sulphinic acid with 2-4 carbon atoms with methylamine, dimethylamine, isopropylamine, nbutylamine, ethylene diamine, hydrazine or urea.  Examples describe the dyeing of yarns of cotton, mercerised cotton and regenerated cellulose staple fibres.
Patent GB-897630-A (GB)
Title: Improvements in or relating to refrigerating containers
IPC: A47F3/04
Filed: 1959-06-03
Abstract: 897,630. Refrigerators. LINDE'S EISMASCHINEN A.G. GES FUR. June 3, 1959 [March 23, 1959], No. 18980/59. Drawings to Specification. Class 29. In a refrigerated cabinet, e.g. an open topped display case made of foamed polystyrol, the surfaces liable to be traversed by water resulting from defrosting are coated as by spraying with an epoxy resin composition having polyester additions and such that it is pervious to water vapour but impervious to water. This allows the insulation material to dry out during refrigerating periods by migration of vapour through the coating to the colder interior of the cabinet. In addition the coating may have perforations of such size that water, because of its surface tension, cannot pass therethrough. The undersurface of the cabinet is coated with bitumen and then paper-backed aluminium foil. Specification 891,602 is referred to.
Patent GB-1433289-A (GB)
Title: Flux for use in submerged arc welding of steel
IPC: B23K35/362
Filed: 1974-05-01
Abstract: 1433289 Welding by fusion KOBE STEEL Ltd 1 May 1974 [1 May 1973] 19043/74 Heading B3R [Also in Division C7] A flux for submerged arc welding of steel comprises 0À01-0À5% weight of B in the form of boron oxide and/or a compound or mixture containing boron oxide, and one or more of the following (a) 1-6% weight Mn as the element, Fe-Mn, Si-Mn or mixtures of these, (b) 1À2- 5% weight as Fe-Si, Si-Mn or mixtures of these, (c) < 4À5% weight Ti and/or Al as the elements, Fe-Ti, Fe-Al or mixtures of these. Suitable B compounds added are borosilicate, borosilicon glass or borosilicate mineral anhydride such as tourmalin, danburite, kretoite 2 [Mg 2 Bo 3 ] or suanite 4 [Mg 2  B 2 O 5 ]. The metals Mo, Ni and Cr may also be added to the flux. The flux is preferably made by mixing the constituents with 18% water glass to form bonded particles -10 + 6À5 mesh Tyler. An example of the flux composition in % weight is 15 MgO clinker, 10 CaCO 3 , 4Al 2 O 3 , 4 fluorite, 5 rutile, 18 SiO 2  sand, 2 zerion sand, 28 Fe powder, 4 Fe-Si, 3 Fe-Mn, 1 Fe-Ti, 1 Fe-Mo, 5 tourmalin (7À82% B 2 O 3 ) equivalent to 0À123 B. The flux is used with a steel welding wire containing 0À06 C, 0À37 Mn, 0À01 Si, 0À008 P and 0À011 S. A 45 degrees "Y" type groove with aroot gap of 6 mm., a base metal thickness of 35mm. of a 50 Kg/mm<SP>2</SP> tensile steel is one side welded in a single run to a copper sheet using a backing flux and the following welding conditions. Three passes are overlapped by using 3 electrodes L 1  T 1  and T 2  in turn.
Patent GB-1393858-A (GB)
Title: Arrangement pivotally attaching a mast assembly to a chassis
IPC: B66F9/08
Filed: 1973-04-19
Abstract: 1393858 Masted lift trucks TOWMOTOR CORP 19 April 1973 [24 April 1972] 19081/73 Heading B8H A telescopic mast assembly 26, 28, along which forks (32) are movable is mounted on the front of a lift truck (10) for pivotal movement about a horizontal axis in a mast mounting arrangement (34) by means of an hydraulic ram (36), Fig. 1 (not shown), said arrangement (34) comprising two identical pivot assembly units, each of which comprises a hanger bracket 44 mounted on the truck chassis and having a concave bearing surface 48 and a mast bracket 58 having bifurcated arms 60 extending from the mast assembly 26, 28, each arm 60 having a bore 64 therein which bores 64 are aligned and locate a pin 50 therein, said bores 64 each having a concentric sleeve bearing 66 located therein in which the pin 50 is located so as to be rotatable relative thereto, the part of the pin 50 between the arms 60 resting on the concave bearing surface 48. Retention means on each of the hanger brackets 44 comprises a bolt 72 which has a sleeve 78 thereon so that when the bolt 72 is screw threaded into a bore 76 in the hanger bracket 44 a tapered end portion 80 of the sleeve 78 co-operates with an annular groove 82 around the pin 50 which prevents both relative axial and pivotal movement between the pin 50 and bracket 44 so that when the mast assembly is actuated by means of the ram 36 it pivots about both the pins 50 through the operation of the bearings 66. A second embodiment, Figs. 5, 6 (not shown), differs from that described in that the retention means consists of a threaded bolt (172) which extends through a bore (88) in each of the pins (150).
Patent GB-274873-A (GB)
Title: Improvements in or relating to friction draft gears for railway cars and like vehicles
IPC: B61G9/10
Filed: 1927-07-19
Abstract: 274,873. National Malleable & Steel Castings, Co., (Assignees of Schmidt, E. H.). July 24, 1926, [Convention date]. Draw-gear. - A friction draft gear for railway vehicles comprises a friction shell B and friction shoes 8 arranged to be maintained in frictional engagement with the shell, the shoes being caused to rotate relatively to the shell in frictional engagement therewith about the longitudinal axis. The shell B is provided internally with a wedge-shaped member 16 against the sides of which bear the sides of the shoes 8 so that they are rotated by the longitudinal movement of a friction wedge 10. The ends of the shoes 8 bear against a spring seat 9 which is pressed against the shoes by springs 11 contained in a housing A. A spiral groove 20, Fig. 7, is formed in each wedge which is engaged by a loose fitting lug 17, Fig. 6, projecting from the shell B so that during the initial releasing movement the shoes do not rotate. After this initial releasing action has taken place, the frictional adhesion between the parts is broken and the parts restored to their normal position by a spring 13. The lugs 17 also serve to rotate the shoes in reverse direction, causing them to assume their initial position. The clearance between one of the shoes and its guiding spiral may be made greater than that between the other shoe and its spiral, thus causing one shoe to start rotation ahead of the other both during compression and release, and while the other is still moving in a straight line
Patent GB-1018549-A (GB)
Title: Thixotropic ceramic composition
Inventor: MARTIN GEOFFREY
IPC: C04B35/14
Filed: 1964-05-08
Abstract: A thixotropic ceramic composition consists of - 20, + 50 mesh (U.S.A. Standard) fused silica, an equal quantity of - 50, + 100 mesh fused silica, both intermixed with a lesser quantity of fused silica - 200 mesh; slaked lime and a colloidal silica binder, all mixed to the consistency of wet sand.
Patent GB-169317-A (GB)
Title: Improvements in coffee making or brewing machines
IPC: A47J31/16
Filed: 1920-07-07
Abstract: 169,317. Casoletti, V. July 7, 1920. Infusing-machines.-In a coffee-making apparatus, the water and coffee are contained in a vessel mounted on trunnions and so arranged that when the water boils the vessel is inverted and the water passes through the coffee to a pot. The invention is especially described with reference to electric heating. The water-vessel 1 is surrounded by a heating-resistance 13. A copper cylinder may be interposed between the two to distribute the heat and retain heat for warming the water after the current has been cut off. The coffee is contained in a chamber 2 arranged above the vessel 1 from which it is separated by a strainer 3. The chamber 2 is closed at the top by a screwed cover 9 having a central opening 10, below which is fixed a plate 11, openings 12 being formed in the connecting portion of the metal. The thread of the screw securing the cover 9 may be formed by soldering a wire in the appropriate position. The vessels 1 and 2 are surrounded by a casing 14 mounted on trunnions 21 in such a way that when at liberty to move it turns with the chamber 2 downwards. This is prevented by an elastic stopper 15 carried on a stem 19 passing through the frame of the machine. The stopper is preferably formed as shown of a piece of rubber secured between two plates 17, 18, the upper of which is formed with a flange engaging with a V-shaped groove in the rubber. When the water boils, the stopper is blown out by the steam and is lifted clear of the casing 14 by a spring 20. The casing 14 then tilts over and the water flows out through the coffee into a pot placed to receive it. The casing is held in an inverted position by pins 40 engaging with catches 42, 43. Electric current is supplied through the trunnions 21 andblocks on which they rest, and when the vessel is inverted the current is cut off by insulating material covering the appropriate portion of thetrunnions. The lid of the coffee pot is preferably formed with a central opening provided with a strainer. An electric heater is provided to keep the pot warm. A cone 39 of wire net may be inserted in the chamber 2 to reduce its capacity.
Patent GB-683844-A (GB)
Title: Improvements in and relating to aerial arrays
IPC: H01Q19/30
Filed: 1950-08-02
Abstract: 683,844. Aerials. BELCHER (RADIO SERVICES), Ltd., and HOWELL, E. C. Aug. 1, 1951 [Aug. 2, 1950], No. 19316/50. Class 40 (vii). An attachment for an aerial system of the type having a dipole and a supporting arm at right angles thereto consists of an extension arm provided with means at one end for attaching it to the supporting arm and means at the other end for carrying an aerial system element parallel to the dipole. A common form of aerial system of the type specified comprises an H aerial consisting of a dipole 6, cross-arm 4, and reflector 7, the system being mounted on a mast 3. An attachment according to the invention may comprise a hollow tube 9 provided at one end with split-ring clamps 10 for attaching it to the cross-arm 4 and at the other end with a sleeve 11 which may carry a director element 8 secured in the sleeve by a bolt 12. In order that the elements 6, 7, and 8 shall lie in the same plane arm 9 is cranked to pass round insulator 5 supporting dipole 6. The extent of the cranking is preferably sufficient to enable the arm 9 to clear a folded dipole and to be adjustable along the arm 4 to vary the separation of elements 6 and 8. A strut 13 may be provided to give additional support to the extension arm.
Patent GB-624976-A (GB)
Title: Improvements in, or relating to transformers of high frequency electric induction furnaces
IPC: H01F30/08
Filed: 1947-07-19
Abstract: 624,976. Induction heating. BIRLEC, Ltd., and MAY, E. July 19, 1947, No. 19371. [Class 39(iii)] [Also in Group XXXV] In a transformer for a high frequency induction heater the secondary winding comprises an annular metal e.g. copper core 3 to each end of which is attached an annular metal cheek 4 interrupted at one point by a radial slit 7; and the primary winding 11 is located around the core and between the cheeks. The primary winding 11, which may be a hollow tube with ends 12 through which water or other cooling fluid may be passed, and which may be insulated by coatings of polythene or by strips, sheets or rings of insulation, is enclosed in a space completed by walls 5. The space may be filled with oil or wax or the whole transformer may be oil immersed. Annular channels 8 with covers 9 and outlets 10 form cooling ducts. Core 3 cooled with water or other fluid through channels 14 sealed by a rubber washer 17 and with outlets 15 forms the work coil. Work may be spray quenched by water passing through holes (not shown) leading from duct 14 to a flared portion 3b of the work head. In modifications a detachable work head may be bolted across the radial slit 7 either inside the core 3 or outside the transformer, Figs. 4-6 (not shown).
Patent GB-917274-A (GB)
Title: Improvements in or relating to air filters
Inventor: SEATON GEORGE BENJAMIN
IPC: F02M35/024
Filed: 1958-06-17
Abstract: 917,274. Gas filters. AUTOMOTIVE PRODUCTS CO. Ltd. June 8, 1959 [June 17, 1958], No. 19397/58. Class 8(2). An air filter comprises a casing 1 having inlet and outlet openings 7, 5 at opposite ends between which is located at least one filter unit having inner and outer walls 12, 13 between which extends a filter element 14 comprising a radially pleated paper disc; the unit being covered by a member 16 extending over one end of the walls 12, 13 and facing the air inlet 7 thereby forming an annular space 17 with the casing wall through which dustladen air passes before entering the filter unit. Preliminary separation is affected by an annular baffle 20 and a flange ring 21 which serve to deflect the larger particles through openings 22 in the casing wall. Two filter units are arranged in parallel.
Patent GB-179127-A (GB)
Title: A cup for an umbrella or the like
IPC: A45B25/28
Filed: 1921-07-19
Abstract: 179,127. Guillemin (nee Combe), M. L. April 28, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Draining. - A cup a of leather, rubberized linen fabric, waterproofed fabric, &c., is attached to the end of the stick d of an umbrella &c. near the top of the cover, to catch and hold the water draining from the cover. As shown, the cup has a spherically-shaped interior and an apertured nave b, which grips the stick. The top edge of the cup may have a flange c. If the cup is made of a rigid material, the nave may have a sheath or inner elastic and waterproof lining, and springs may assist in making it adhere to the stick.
Patent GB-440959-A (GB)
Title: Improvements in the manufacture of phenol-formaldehyde condensation products
IPC: C08G8/00
Filed: 1934-07-04
Abstract: Phenol-formaldehyde condensation products are prepared by condensing 1 mol of phenol with 2 to 2,8 mols of formaldehyde in the presence of such quantity of alkali as will prevent precipitation of the condensation product during condensation and when the condensation is complete and preferably when no free phenol is left neutralizing or acidifying the solution and cooling to separate the condensation product.  The product, if necessary, may be subjected to vacuum distillation to remove any remaining water.  In an example, phenol and formaldehyde are condensed in the presence of aqueous caustic soda and after neutralization with lactic acid the solution is cooled to precipitate the resin, and the resin, after mixing with a small amount of formaldehyde, is dehydrated in vacuo.  Specification 432,190 is referred to.
Patent GB-700669-A (GB)
Title: Method of and apparatus for drawing out the fruit-stones from cherries and the like
IPC: A23N4/06
Filed: 1952-08-05
Abstract: 700,669. Stalk and stone removing. CAVANNA. T. Aug: 5. 1952 [Aug. 3, 1951; July 22, 1952], No. 19663/52. Class 28(2) Stones are removed from cherries &c. by claws 30, 31 and 32 on a body 33, the claws lying close together like a spoon when pushed into the fruit and then two of the claws are rotated to cut around the stone by rotating the handles 36, 37 after which the stone is pulled out by the claws. Fig. 5 shows a hand-operated construction in which the body 33 is contained within relatively movable handle parts 40, 41 held apart by a leaf spring 46. When the closed claws are inserted in the fruit the handle 'parts 40, 41 are squeezed together whereby inside cross-bars 44, 45 rotate the handles 36, 37 to spread the claws around the stone before pulling the fruit away. Fig. 8 shows a machine for automatically removing the stalks and stones. A step-by-step rotated drum is provided with longitudinal rows of pockets 56, each pocket receiving a single cherry from a hopper 57 by any known form of one-at-a-time delivery device. The size and shape of the pocket 56 allows a cherry to drop in, stalk uppermost. At top position a cam-rocked lever 75 moves pincers 61 to grip and pull on the stalk and also moves a forked plate 59 over the pocket to hold the cherry in its pocket dur- - ing pulling out of the stalk. Thereafter a one-step rotation by the pawl 52 brings the cherry in front of the stone removing device 33, where the cherry is firmly gripped by cam-and-lever actuated jaws 70, Figs. 11 and 12 (not shown), inside each pocket. The claws 30 &c. acting as previously described are pushed into the cherry by a timed rocking lever 73. Stops 81, 82 act to rotate the claws around the stone which is then pulled out. Further rotation brings the cherries to bottom position where a cam 63 actuates plungers 62 to eject the stoned cherries from the recesses 56.
Patent GB-595394-A (GB)
Title: Improvements in or relating to swash or wobble-plate mechanism
IPC: F16H23/02
Filed: 1945-06-08
Abstract: 595,394. Swash-plate mechanism. WARREN, R. June 8, 1945, No. 19698/47. Divided out of Complete Specification of 595,358. [Class 80(iii)] [Also in Group XXVIII] An adjustable s w a shplate mechanism comprises a driving shaft 101 having an inclined crank pin 106 supporting a bush 109 which carries by means of bearings 111 a non-rotatable swash-plate 110. The latter may be held against rotation by a stop 112 engaging an axial guide 113 in the fixed casing 100. The bore in the bush 109 for the crank-pin 106 is inclined to the axis of the bush. Thus relative angular movement between the bush 109 and the crank-pin 106 will vary the inclination and effective throw of the swash-plate. Such adjustment may be effected by axial movement of a sleeve 126 having internal splines engaging splines 125 on shaft portion 107 and external splines engaging splines 124 in a sleeve 122 fixed to a bevel gear 121. One set or both sets of splines are helical. The gear 121 meshes a bevel gear 120 fixed to the bush 109. As shown, the swash-plate is used for reciprocating the lay-shafts 73 of a variable-speed gearing as described in Specification 595,358. The swash - plate mechanism may be used for pumps or other purposes.
Patent GB-147719-A (GB)
Title: Improvements in or relating to mixed live-steam and exhaust-steam turbines
IPC: F01D1/02
Filed: 1920-07-08
Abstract: 147,719. Frankfurter Maschinenbau- Akt.-Ges. vorm Pokorny & Wittekind, and Grun, W. May 23, 1916, [Convention date]. Regulating.-In turbines operating both with live-steam and exhaust-steam, the stage at which the exhaust steam is introduced is varied by a slide-valve e controlling ports f, g, h in accordance with the quantity of steam available, so that with a quantity less than normal the exhaust steam is admitted to an earlier stage, and with a quantity more than normal the exhaust steam is admitted to a later stage. To avoid leakage, the port h may be controlled by a separate valve which is only moved after the other ports f, g have been opened.