baber/WOPTO huggingface dataset:
Patent GB-1388782-A (GB)
Title: Method of producing a vacuum switch contact
IPC: H01H11/04
Filed: 1973-02-02
Abstract: 1388782 Making contacts; soldering SPRECHER & SCHUH AG 2 Feb 1973 [17 March 1972] 5342/73 Headings B3A and B3R [Also in Division H1] A method of making a vacuum switch contact from a support material of sheet metal having a low vapour pressure and which is coated with a material having a high vapour pressure, comprises, heat treating the support material at above 600‹ C. to degas it, vapour coating the high vapour pressure material on to the support material, arranging the coated material in a plurality of layers, pressing the layers together and heating them at a temperature above the melting point of the high vapour pressure material until diffusion of the two materials and soldering of the layers takes place, all steps of the method being performed in a vacuum tank 1. A stack of plates 10 is placed in a magazine 11, the stack being moved upwardly by an actuating rod 13 as the individual plates are fed to a furnace 6 by a roller 15. The vacuum in the tank 1 is at least 10<SP>-3</SP> Torr to assist in degassing the plates. Rollers 16 pass the plates to conventional vapour coating means 7 and into a magazine 17 with the assistance of a further roller 18. When all the plates are in the magazine, pressure is applied by a heated plate 20 and further heating is applied by a heater 23, to raise the temperature of the stack above the melting point of the deposited metal, thereby forming a contact (24), Fig. 4 (not shown). In an alternative embodiment, Fig. 1 (not shown), reels (3), (5), replace the magazines and the support material is in the form of a strip (2), the coated strip being coiled on the reel (5) to form a cylindrical contact member (9), Fig. 2 (not shown). The support material is preferably iron, copper, tungsten, tantalum or molybdenum and the coating material is preferably bismuth, tin, lead or beryllium.
Patent GB-1396627-A (GB)
Title: Unsaturated sulphones
IPC: C07C403/00
Filed: 1973-02-02
Abstract: 1396627 Unsaturated sulphones; Vitamin A RHONE-POULENC SA 2 Feb 1973 [4 Feb 1972 10 April 1972] 5386/73 Headings C2C and C2V The invention comprises compounds of the formula wherein the sulphonyl group replaces a H atom on C atom (a) or (b), R is alkyl, alkenyl, aralkyl, alkaryl or aryl each of which may be substituted by substituents which are electron donors or acceptors, E is O, a protected O atom, or CH 2 ; (i) when E is O or protected O atom, Q is H, straight or branched aliphatic hydrocarbon radical which may be substituted or is an aromatic radical; (ii) when E is CH 2 , Q is halogen, an inorganic anion with its associated cation, wherein R 1  and R 2  are alkyl or aryl or together with the N atom to which they are attached form a heterocyclic ring, or is an -OR 3  or -SR 3  group wherein R 3  is alkyl, aryl or acyl of a C 1 -C 6  carboxylic acid; A is (a) hydrocarbon radical containing 5 n+1  carbon atoms (n being an integer from 1 to 5) which may be substituted; (b) -CH 3  which may be substituted by halogen, sulphide or sulphone group; (c) -CH 2 OH, an ether or ester thereof; (d) a free or protected aldehyde group; or (e) -COOH, an ester thereof, COCl or CN. They may be obtained by reacting a compound of the formula with a compound of the formula where one of X and Y is halogen and the other is SO 2 R, in the presence of a basic agent capable of converting the compound in which X or Y is SO 2 R into an anion; (2) when the sulphone group replaces a H atom on C atom (a) by reacting a compound of the formula with a compound of the formula wherein Q<SP>1</SP>H corresponds to Q, in the presence of an alkaline agent; or (3) when the sulphone group replaces a H atom on C atom (b), by reacting a compound of the formula with a compound of the formula wherein A<SP>1</SP>H corresponds to A, in the presence of an alkaline agent. Examples are given for the production of these compounds. Compounds containing the grouping or the grouping  are obtained by desulphonating a sulphone of Formula I by treatment with a base or by reduction respectively.
Patent GB-1142264-A (GB)
Title: A sodium calcium borate
Inventor: DULAT JOSEPH
IPC: C01B35/10
Filed: 1967-02-03
Abstract: 1,142,264. Sodium calcium borate. UNITED STATES BORAX & CHEMICAL CORP. 3 Feb., 1967, No. 5417/67. Heading C1A. Sodium calcium borate of formula 3Na 2 O.2CaO.5B 2 O 3  (claimed per se) is made by forming an anhydrous melt, the analysis of which when cool would show Na 2 O, CaO and B 2 O 3 . The melt is cooled to form crystals which are separated from the melt. The preferred composition for the melt contains the components in the molecular proportions of the crystals; however other specified compositions may be used. Suitable starting materials include borax, boric oxide and calcium oxide or hydroxide, or calcium borate ores, sodium tetra- and metaborates, sodium borate ores or a sodium calcium borate ore. The melt is preferably heated to 1100 C. or higher.
Patent GB-558257-A (GB)
Title: Improvements in or relating to electric switches sensitive to small operating movements
IPC: G05D3/12
Filed: 1942-04-23
Abstract: 558,257. Snap-action switches. RUBERY OWEN MESSIER, Ltd., and Arnot, A. April 23, 1942, No. 5483. [Class 38 (v)] A switch responsive to small operating movement comprises an operating member such as a pivoted disc 12, on which a spring pressed plunger 13 bears against a pallet 17 pivoted at 16, and a movable contact 24 connected to the pallet. A bowed compression spring 22 may ensure the action of the pallet. If the actuating member moves, the spring plunger bears to one side or the other of the line of the pivot 16 and tilts the pallet and moves contact 24, for example on to one or other fixed contact 25. The base 15 may be rotatable to set the throwing point of the member 12. Specifications 553,789, [Group XXXVIII], and 558,075 are referred to.
Patent GB-564757-A (GB)
Title: Engine pressure lubrication system
IPC: F16N29/02
Filed: 1943-04-06
Abstract: 564,757. Valves. DEHN, F. B. (Continental Motors Corporation). April 6, 1943, No. 5501. [Class 135] [Also in Group XXXIV] In a pump-feed lubricating system for internalcombustion engines, the pressurerelief valve is normally urged to the closed position and is responsive solely to static oilpressure and not velocity oil - pressure. The valve consists of a unit structure inserted at the end of the system and comprises a casing 21 with inlet 22 and outlet 23, the latter being connected to the intake side of the pump. A piston valve 25 is placed within a bore 26 which traverses the outlet 23 and is pressed against a shoulder 32 by a spring 27 secured by a cap 28. The bore 26 has an opening 31 into the inlet 22 so that the static pressure to the inlet can actuate the piston 25 which has an annular groove or recess 33 registering with the outlet 23 when the valve is open. The spring chamber 40 is vented by a passage 41 leading either to the outlet 23 or the engine crank-case, whilst in a modification the piston is apertured at a relief zone which connects with the passage 41.
Patent GB-969365-A (GB)
Title: Pressure regulating valve structure
IPC: F16K17/194
Filed: 1962-02-14
Abstract: 969,365. Valves. VAREC Inc. Feb. 14, 1962 [Nov. 30, 1961], No. 5626/62. Heading F2V. A valve structure comprises a lift member or disc 24 which extends radially outwardly at 24B from a valve seat 14A and is provided with an annular diaphragm part 23B having its periphery slidably located in a groove in the part 24B, the diaphragm 23B inwardly of the seat being loosely supported by an apertured support 26 carried from the disc 24, the fluid pressure within the seat opening thus having access behind the diaphragm so that portions A and B bridging the spaces between the part 24B and the seat and between the seat and the support 26 are bowed away from the disc 24 by the fluid pressure as the valve is opened thereby, and the diaphragm adheres to the seat until the disc is lifted well clear of the seat. The diaphragm part 23B is sealed at its periphery to a second diaphragm part 23A covering the face of the disc 24. The structure is incorporated in a combined pressure and vacuum relief valve, wherein the pressure valve 18 and the vacuum valve 17 are gravity loaded. The outlet of the pressure valve is provided with a filter 33 supported by pillars 30 which also support an annular baffle 35 to which is hinged a cover 39 releasably secured to the baffle by arms 55 engaged by spring held eyes 38. The cover 39 carries an internal bifurcated arm 46 rotatably through a shaft 45 by an external counterweighted arm 48 whereby to engage and hold the valve 18 closed when required. The inlet of the vacuum valve 17 also has a filter 67, and a cover 16 of the casing in line with this valve is secured by a strap 62 secured to the cover and releasably held by screwed hand wheels 65.
Patent GB-1334662-A (GB)
Title: Catalysts and to polymerization methods using such catalysts
IPC: C08F4/22
Filed: 1972-02-08
Abstract: 1334662 Polymerization catalysts AMERICAN CAN CO and SKELLY OIL CO [trading as CHEMPLEX CO] 8 Feb 1972 [9 April 1971] 5788/72 Heading C3P [Also in Division B1] 1-Olefins are polymerized in the presence of a catalyst prepared by fluidizing, at elevated temperature, a substantially dry bed of chromium oxide supported on a difficultly reducible carrier using a substantially inert and dry gas, adding thereto while fluidizing a C 1-7  alkyl ester of Ti, B and/or V and activating the bed with a dry O 2 -containing gas. Sufficient ester which is free from non-aqueous solvents is added to give 0À5-10 wt. per cent Ti, B and/or V in the catalyst. Examples describe the polymerization of ethylene or hexene + ethylene in the presence of catalysts of the invention and isobutane at 95-227 C. and 500-550 p.s.i.g.
Patent GB-1508762-A (GB)
Title: Electrical household appliance equipped with a removable accessory such as a vegetable cutter
IPC: A47J43/04
Filed: 1977-02-11
Abstract: 1508762 Multi-purpose kitchen machine MOULINEX SA 11 Feb 1977 [12 Feb 1976] 05806/77 Heading B1C In a multi-purpose kitchen machine the accessory 14 (as shown, a vegetable cutter 20) is retained on the base 10 by toggle clamps 38, 40 articulated on the cover 18, the clamp 40 having a push-button 64 which in the fastened position of the clamp can engage a lug 70 to actuate a sliding finger 75 which can operate a motor switch 56. Another motor switch 54 in series with the switch 56 is closed by a fixed finger 62 on the accessory. The arrangement provides for the motor to be operable only when an accessory is seated on the base and the accessory cover fastened in position.
Patent GB-468940-A (GB)
Title: Improvements relating to the production of sour fodder, and particularly to the preservation of green fodder
IPC: A01F25/16
Filed: 1937-02-26
Abstract: 468,940. Preserving fodder. WENZELIDES, R. Feb. 26, 1937, No. 5826. [Class 5 (i)] Green fodder is preserved by placing it on flexible gas-tight material and then covering it completely with such material so as to permit the exit but prevent the entry of air. As shown, a pit is lined with overlapping layers 4, 5 of double paper webs united by a coat of tar, and green fodder 6 is trodden into the pit. Further green fodder 7 is then added and covered with flexible material 9, the edges 8 of which cover the edges 2 of the material 4, 5. The earth 10 used in making the pit is then applied over the covering 9. During fermentation, the mass contracts and air is forced outwardly between the superposed layers of flexible material. In some cases, the pit is dispensed with and the fodder is heaped on to flexible material laid on the ground and then covered with other flexible material on which earth is placed.
Patent GB-382178-A (GB)
Title: Water-tube steam generator
IPC: F22B29/06
Filed: 1932-02-26
Abstract: 382,178. Water-tube steam boilers. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.- (Assignees of Lucke, C. E. ; 485, West End Avenue, New York, U.S.A.) Feb. 26, 1932, No. 5862. Convention date, Feb. 27, 1931. [Class 123 (ii).] Drumless steam boilers of the " once through " type comprise tubes arranged in groups with parallel flow therein, within a continuous gas passage having a heat source at one end and made up of a series of vertical passages, feedwater entering a section disposed in a cooler part and a final superheating group being located in a downflow gas passage screened from radiant heat. The circulation both in an economizer section and a slag screen is counter to the gas flow. A boiler furnace has an upright partition 7 between upflow and downflow gas passages 9, 10 which are connected by a horizontal passage 8, the combustion products from burners 11 finally passing through a flue 13 accommodating an air heater 14. Water is supplied through a pipe 21 to an economizer section comprising serpentine coils 22 connecting headers 23, 24 in the cooler part of passage 10. A pipe 25 leads to the slag screen 27 of similar construction to the economizer and arranged in the gas passage 9, the watersteam mixture then passing through a radiantly heated section 30 comprising tubes arranged against the under-surface of the furnace roof 2 to a back wall section 34, and thence to four side wall sections 41, 44, 49, 52 which surround the first gas passage 9. Steam delivered from these sections passes through a pipe 64 to a superheater 55 at the entrance to the downward passage 10 and screened from radiant heat. The tubes of the side wall section 44 are alternately bent at portions 47, 48 to lessen resistance to the gas flow.
Patent GB-958523-A (GB)
Title: Rectifier assemblies
Inventor: HANNAN NEIL TOWNSEND
Filed: 1961-02-17
Abstract: 958,523. Rectifier stacks. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Feb. 7, 1962 [Feb. 17, 1961], No. 5879/61. Heading H1K. A rectifier assembly is provided with connector elements 10, Fig. 1, having a crossslotted aperture 11 for interconnecting the connectors by means of rods, strips or wires threaded through the slots, each connector of one polarity being aligned with all the other connectors of that polarity. To maintain the precise alignment the connectors and cooling fins have rectangular apertures 13 and 19 respectively, so that they may be mounted on insulating bushes 17 which interlock via spigots 16 and recesses 18. Fig. 4 shows a rectifier assembly in which silicon diodes 15 are mounted on cooling fins 20 which are then assembled together with connectors 10 on interlocking insulating bushes 17 which are held together by threaded studs 21 and nuts 22.
Patent GB-1064408-A (GB)
Title: Motor vehicle inching control
IPC: B66F9/22
Filed: 1966-02-10
Abstract: 1,064,408. Clutch control. ALLIS-CHALMERS MANUFACTURING CO. Feb. 10, 1966 [Feb. 17, 1965], No. 5887/66. Heading F2L.  In a vehicle inching control wherein pressure liquid is supplied through a clutch control valve 24 linked to a clutch pedal 51 and a reversing valve 23 to a forward or reverse drive clutch 14 or 16 and a lost-motion connection 53, 54 is provided between the clutch pedal 51 and a brake pedal 41 so that independent vehicle braking may be effected by depressing the pedal 41 whilst combined clutch disengagement and vehicle braking are effected by depressing the pedal 51, the linkage between the clutch pedal 51 and the control valve 24 comprises a plunger 59 having limited movement relative to a lug 52 on the pedal and urged by a spring 58 into engagement with a rod 69 of the valve spool 24 which is biased right by a weaker spring 57 so that on initial depression of the pedal 51 the spring 58 acts through the plunger 59 to hold the valve 24 in its clutchengaged position whilst the pedal 51 moves relatively to the plunger 59. This tends to prevent the driver from partially disengaging the clutch by resting his foot on the pedal 51 since initial movement of does not cause clutch disengagement and thereafter an increased spring pressure is felt since the spring 58 no longer acts to assist pedal pressure. A cap nut 71 permits adjustment of the valve spool 24 relative to the pedal 51 and a screw 53 permits adjustment of the lost-motion between the clutch and brake pedals.
Patent GB-642115-A (GB)
Title: An improved process for the treatment of solid particles in fluidised condition
IPC: C07C1/04
Filed: 1947-02-28
Abstract: In a process in which finely-divided solid (e.g. catalyst) particles are maintained in a fluidized state in a treating zone 1 and in which the buoyancy frequency distribution of the particles changes within the zone, particles of <PICT:0642115/III/1> representative buoyancy are withdrawn through line 8 and are passed to a separation zone 10 wherein the more buoyant particles are separated from the less buoyant particles, the latter particles being then recycled to the zone 1 through lines 4 and 2. As applied to the synthesis of hydrocarbons by reacting carbon monoxide and hydrogen in the presence of a finely-divided catalyst such as iron, cobalt or nickel, feed gases along with fresh catalyst from hopper 30 are passed to the zone 1 through line 2 and the reaction products leave the zone 1 through line 7.  The more buoyant particles are withdrawn from the separation zone 10 by line 11 and passed, if desired, to a regenerator.  The separation zone 10 and also, if desired, the treating zone 1 may contain non-fluidized packing elements such as balls, spheres, cylinders, U-shaped elements, saddles, Raschig rings, coils, metal turnings and helices.  The process is also applicable to catalytic cracking operations and the carbonization of finely-divided coal. Specification 600,326 is referred to.
Patent GB-368052-A (GB)
Title: Improvements in synchronised sound and picture reproducing apparatus
IPC: G03B31/00
Filed: 1931-02-25
Abstract: 368,052. Kinematograph projectors. BROYTMAN, S., 16, Rue Clauzel, Paris. Feb. 25, 1931, No. 5916. Convention date, Feb. 25, 1930. [Class 97 (i).] A projector 2 is driven by a motor 1 through the shutter shaft 4 and a chain 8, cardan, or belt. The motor also drives a gramophone turntable 23 through reduction gears 9, 15, 22, &c.
Patent GB-691283-A (GB)
Title: Filtering device and plant for air or gas, particularly for pneumatic transport
IPC: B65G53/60
Filed: 1951-03-12
Abstract: 691,283. Gas filters. ANTONELLI, L. March 12, 1951 [March 30, 1950], No. 5919/51. Class 8 (ii). A gas filtering plant comprises a plurality of filter units 1 Fig. 1 each subdivided by baffles 18 Fig. 3 into say four chambers each of which communicates through a hose 16 with a dust-laden gas inlet space 19. and through one of four conduits 5---8 with one of four pairs of valves in a valve unit 9 having suction and pressure zones 28. 29 Fig. 4 to one or other of which each filter chamber is connected according to the setting of its related valves; the latter being actuated cyclically by means e.g., cams 41, 42 driven by a motor 44 whereby each filter chamber is successively subjected to pressure and suction. The zones 28, 29 are connected to the inlet and outlet of suction and pressure fans 10, 11 respectively. In a modification the zone 29 is connected to the outlet of the suction fan 10 or to atmosphere. As shown meal-laden air from containers 3 is drawn by the fan 10 through ducts 2 to three of the four chambers of each unit 1 connected by conduits 5, 7, 8 to chambers 30, 32, 33 Fig. 5 formed between zones 28, 29 by walls 22 - - - 27. The chambers 30, 32, 33 are open to the suction zone 28 through the valves actuated by cam 41, and are closed to the pressure zone 29 by the valves 36, 38, 39 actuated by cam 42. A fourth chamber 31 connected to the conduit 6 is closed to zone 28 by the cam actuated valve 35 and is open to zone 29 through the cam actuated valve 37 resulting in pneumatic cleaning of the hoses 16 associated therewith.
Patent GB-587071-A (GB)
Title: An improved radio antenna system
IPC: H01Q21/24
Filed: 1944-03-30
Abstract: 587,071. Directive radio signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 30, 1944, No. 5920. Convention date, March 31, 1943. [Class 40 (v)] An antenna system comprises two pairs of radiator elements, the members of each pair being disposed at right angles to each other and each element of either pair being in line with one element of the other pair and means including a system of transmission lines for energizing the elements of one pair in phase and the elements of the other pair in antiphase. The radiator elements 1, 3, 5, 7 are welded to outer conductor members 9, 11, 13, 15 formed with bushings 61 connected to a shorting member 27 and fixed at their opposite ends to a plate 17. Secured to the bushings 61 are conductors 19, 21, 23, 25 of equal length connected at points 33, 35 to a loop 37, 39 having a connection point 43 to a feed line 41 and points 49, 51 joined by conductors 45, 47 of length # /4 to a point 55 at which energy is fed from a line 53. The combined lengths of lines 45, 47 may be an odd integral number of half wavelengths. The points 49, 51 are a distance A/4 nearer the radiators 3, 5 than are the points 33, 35. When energy is fed over line 41, the radiation from elements 5, 7 is 180 degrees out of phase with that radiated from the elements 1, 3 since the line 39 is ¢ # longer than the line 37. The combined lengths of lines 37, 39 may be an integral number of wavelengths. The points 49, 51 are at equal and opposite potential so that the point 55 is at zero potential. When energy is supplied over the line 53, the radiation from the elements 3, 5 is in phase and 180 degrees out of phase with that radiated from the elements 1, 7 and a potential node exists at the point 43. Circular polarization can be produced by energizing the lines 41, 53 simultaneously and the horizontally and vertically polarized fields will be in quadrature if the lines 41, 53 are of equal length. By utilizing one plane of polarization for one signal and the orthogonal plane for the other signal, the same carrier frequency may be employed, for transmitting or .receiving independent signals. The supporting members 9, 11, 13, 15 are tuned to parallel resonance by means of shorting bars 63 so that each pair of supports acts as a parallel  # line presenting a high impedance. between each pair of radiator elements.
Patent GB-233314-A (GB)
Title: Improvements in feeding mechanism for embossing and other printing presses
IPC: B65H1/28
Filed: 1925-03-04
Abstract: 233,314. Odell, H. April 30, 1924, [Convention date]. Rotary dial or table sheet-feeds; registering- devices.-A mechanism for feeding cards or the like to embossing or printing presses, of the kind described in Specification 227,835, in which the cards &c. are carried by intermittently rotated radially adjustable carriers 16 and are registered against side stops 28, and the fronts of the cards are placed under clips 41 and against bars 40 which effect the longitudinal register, is constructed with means for simultaneously adjusting the positions of the stops 28 on all the carriers 16, and separate means for simultaneously adjusting the bars 40 of all the carriers 16 angularly about pivots 42. The feed mechanism can thus be set quickly so as to register the cards accurately with respect to the die carried by the embossing-press. The carriers 16 are constructed and are adjustable radially in the same manner as described in Specification 227,835, and the stops 28 are attached to nuts which are engaged by screws 26 and are movable laterally by the rotation of the screws 26. The screws 26 are operated simultaneously by bevel gearing from an annular gear 33 mounted in an annular race in a fixed housing 34. The gear 33 is operated by a bevel gear 36 on a shaft 37 with an operating- handle 38. The gears 32 in gear with the annular gear 33 are splined to their shafts 30 to permit of the radial adjustment of the carriers 16. The adjustment of the bars 40 is effected by shafts 45, mounted so as to be incapable of longitudinal movement, and having loose threaded connections with sleeves 43 secured to the bars 40. The shafts 45 are connected by bevel gearing to spur wheels 49 which are geared to an internally toothed ring 53 mounted inside the housing 34. One of the wheels 49 is fitted with an operating- handle, and when this is operated similar motion is given to all the wheels 49 by the gear 53.