baber/WOPTO huggingface dataset:
Patent GB-725098-A (GB)
Title: Improvements in taps or cocks
IPC: F16K41/12
Filed: 1953-08-20
Abstract: 725,098. Valves. ALSINA, E. N., and MARQUET, M. G. Aug. 20, 1953 [Aug. 29, 1952], No. 23006/53. Class 135. A valve comprises a easing 18 bored longitudinally and provided with a partition 2 and an outlet 3, a rigid or elastic valve head 8 having a part spherical surface and co-operating with a rigid or elastic seat 4 and carried on one end of a longitudinally slidable stem 7, a sealing diaphragm 5 through which the stem 7 passes, and a spring 11 positioned between the partition and diaphragm to urge the valve head to the closed position. Stem 7 carries an operating knob 9 at its outer end. The spring does not act directly on the diaphragm but bears on a washer 10. The unit shown may be enclosed in a draw-off tap wherein the knob 9 is acted upon by the end of a rotary screwed operating spindle.
Patent GB-739160-A (GB)
Title: Improvements relating to the production of grey cast iron
Inventor: BUSBY ARTHUR DONALD
IPC: C21C1/08
Filed: 1952-09-12
Abstract: A method of producing spheroidal graphite in alloyed or unalloyed cast iron by the addition of magnesium to the molten metal comprises adding, despite the presence of small amounts of titanium, some, but not more than half, of the magnesium in the form of magnesium nitride.  The magnesium may be added as a partly nitrided alloy, or as partly nitrided elementary metal, or as a mixture of magnesium or magnesium alloy and magnesium nitride, the latter preferably in the powdered form.  Specifications 630,070 and 716,843 are referred to.
Patent GB-1498218-A (GB)
Title: Method and apparatus for detecting the presence of magnetic anomalies in ferromagnetic and non-ferromagnetic materials
IPC: G01R33/12
Filed: 1975-05-27
Abstract: 1498218 Magnetic flaw detectors KENNECOTT COPPER CORP 27 May 1976 [17 June 1974] 23123/75 Heading GIN In an arrangment for detecting the presence of magnetic anomolies in ferromagnetic and non- ferromagnetic materials the output is modified to take account fo the velocity of passage of the material being tested through the detector head. A rod, wire, tube or bar 6 of material to be tested is driven by a pair of rollers 15 through a guide tube 5 extending axially through a cylindrical magnet 10 producing in tube 5 substantially uniform magnetic field. A pair of closely coupled series connected sensing coils 4, 14 are positioned around tube 5 and coupled in phase opposition by transformer 15 to amplifier 8; alternatively the coils may be wound in series opposition in which case a normal step-up transformer may be used. The e.m.f. induced in the coils 4, 14 by the passage of the material 6 therethrough will be proportional in amplitude to the magnitude of magnetic dipoles included in the anomolies and to their velocity through the field of the magnet 10. In order to make the output of amplifier 8 independent of the velocity the tachometer 12 is positioned as shown and its output is applied to one input of operational amplifier 10, the output of which is connected to a photo-conductive cell 12 which modifies the feedback impedance across amplifier 8 so that the gain of the latter varies inversely with the velocity of tube 6. Thus the output of 8, which may be fed to a CRT or strip chart recorder 9, is proportional to the size of the anomoly, external field disturbances cancelling out. Magnet 10 is made to have a sufficiently long magnetic field so that the dipoles can charge to a uniform degree independent of the magnetic constant of the ferromagnetic material and any eddy currents in the tube 6 as a result of magnetic discontinuities at the entrance of the magnet 10 have time to decay before the part passes through the coils. In an alternative circuit for providing velocity compensation Fig. 4 (not shown) the amplifier 8 has a linear gain characteristic and its output is coupled via a diode to the indicator, the diode being back biased by the output voltage from the tachogenerator. The effect of the circuit is to increase the clipping of the output of the amplifier as the velocity of the speciment 6 increases.
Patent GB-755829-A (GB)
Title: Improvements in and relating to turbines and similar machines
IPC: F01D21/04
Filed: 1952-09-15
Abstract: 755,829. Turbines; centrifugal and axialflow compressors &c. AKT.-GES. FUR TECHNISCHE STUDIEN, Sept. 15, 1952 [Oct. 25, 1951], No. 23128/52. Classes 110(1) and 110(3). [Also in Group XL(b)] Relative movement between the fixed and moving parts of steam or gas turbines or centrifugal and axial flow compressors and blowers due to different thermal expansion of the parts is determined by mounting radio-active material on one of the parts and providing means on the other part which' vary the rays reaching a detector in accordance with the relative movement of the parts. As shown, a radio-active substance 6 is applied to the edge of the moving blading 2 and rays pass through the steel casting 3, insulating lining 4 and sheet metal casing 5 to a Geiger counter 7. A recess 5' is provided in the steel casing so that the output of the Geiger tube is a maximum when the blade is located directly beneath it and is reduced as the blading is moved in either direction relatively to it. In modifications (Figs. 2, 3 and 4 not shown) a flange forming a thickening on the steel casing is used to modify the path of the rays, or additional metallic screening members may be positioned in the lagging 4. The radio-active substance may be applied to a fixed guide blade disc, a projection or covering strip being provided extending laterally from the periphery of the rotor wheel. The arrangement may be employed to detect relative radial movement of parts.
Patent GB-819268-A (GB)
Title: Improvements in and relating to evaporators
Inventor: FRANKEL ADOLF
IPC: B01D3/06
Filed: 1956-07-26
Abstract: 819,268. Multi-stage evaporators; distilling water. RICHARDSON, WESTGARTH & CO. Ltd. July 26, 1957 [July 26, 1956], No. 23135/56. Class 32. A multi-stage flash-type evaporator comprising a series of heaters at least some of which include a number of tubes forming part of the liquid circulation system and arranged to be heated from the outside by the latent heat of condensation of vapour passed into the heaters from a series of flash chambers connected to the heaters for the passage of vapours thereto and having a further connection with the heaters for the supply of heated liquid from the heaters to the flash chambers, is provided with a steam heater having a number of tubes or equivalent through which heating steam can be passed and which are so disposed as to be immersed partially or completely in the liquid during normal operation of the evaporator. The steam heater is preferably arranged in the liquid space of the flash chamber operating at the highest temperature and pressure. In a preferred embodiment the evaporator comprises tubes 18 through which feed water passes on its way to a flash chamber 12a. Arranged near the bottom of the first flash chamber 12a and in the liquid space is a live steam heater 28 which comprises a number of U-tubes 30. The liquid evaporates, passes through one or more moisture separators 24 (not shown), and then condenses on the outside of tubes 18 thereby warming the feed contained therein. In a modification (not shown) the heating surface 30 may be arranged partly or wholly inside the pipe line 20 supplying liquid to the flash chamber.
Patent GB-718667-A (GB)
Title: Improvements in or relating to portable heaters and lamps
IPC: F24C5/20
Filed: 1952-09-15
Abstract: 718,667. Vapour burners, MANNING, W. O. Aug. 26. 1953, [Sept. 15, 1952.] No. 23138/52. Class 75 (1). A portable heater or lamp comprises a fuel container 14 heated by a flame 15 to vaporize the fuel therein for supply to a burner 22 and a cylindrical surrounding member 16 servas a wind shield for the flame 15 and as a support for the fuel container 14. The combined wind shield and support member 16 is arranged to conduct hot gases from the flame 15 over at least part of the side surfaces of the fuel container 14. A manually adjustable wick burner 11, a solid fuel tablet, or any other flame device may be used for the flame 15. The support member 16 rests on a support plate 13 having air ports 25 to the flame 15. The hot gases from the flame 15 pass through an annular passage 18 to heat the sides of the fuel container 14 and supply heated air to the main burner constituted by a Bunsen tube 22 and nozzle 21 screwed to the filling aperture of the container 14. A single fuel such as methylated spirits is normally used for both the wick burner 11 and the main burner 22. The shield 16 may be extended as shown in dotted lines to support cooking utensils. The burner 22 may be replaced by a flexible or other pipe extension provided with a burner at the end remote from the fuel container 14. An incandescent mantle may be fitted.
Patent GB-667047-A (GB)
Title: Improvements in driving gear for reciprocating rotary members
IPC: F16H7/02
Filed: 1949-09-07
Abstract: 667,047. Gear-cutting. CLAMEDELL, Ltd. (trading as SOUTHERN ENGINEERING & MACHINERY CO.), and CLARKSON, W. R. Sept. 18, 1950 [Sept. 7, 1949], No. 23169/49. Class 83 (iii). [Also in Group XXIV] An arrangement for driving from a motor 13 the cutter spindle 11 of a gear and sprocket cutting machine which is mounted on a carriage 10 adapted to reciprocate in a direction at right angles to the cutter axis, comprises a pivoted platform 14 for the motor 13 and associated belt and toothed gearing and a belt drive 29 from a pulley 28 on a final driving shaft on this platform to a pulley 30 on a shaft on the cutter carriage 10 geared to the spindle 11. The belts 29 are tensioned and the centre distance between the shafts of pulleys 28 and 30 maintained by an adjustable link 39, 40, 41 pivotally mounted about the two shaft centres. Thus on reciprocatory movement of the carriage 10 the platform 14 oscillates about its pivot 36 to allow for the movement of the link 39, 40, 41.
Patent GB-627936-A (GB)
Title: Improved working fluid for refrigeration systems
IPC: C10M171/00
Filed: 1947-08-21
Abstract: 627,936. Refrigerating. GENERAL MOTORS CORPORATION. Aug. 21, 1947, No. 23180. Convention date, Sept. 21, 1946. [Class 29] A working fluid for refrigerating systems comprises as a major constituent a halogenated aliphatic hydrocarbon and a lubricant, and as a minor constituent an organic oxide in which an oxygen atom is linked to two adjacent carbon atoms acting as a corrosion inhibitor. A preferred refrigerant is difluorodichloromethane and a preferred oxide propylene oxide 1.2 in an amount ranging from ¢ per cent to 5 per cent of the refrigerant. Other oxides suitable which may include phenyl groups are mentioned. An alcohol may be added as an antifreeze agent.
Patent GB-155383-A (GB)
Title: Improvements in power transmission gearing
IPC: F16H9/24
Filed: 1919-09-20
Abstract: 155,383. Benda, D., and Whittle, R. Sept. 20, 1919. Variable-speed belt or chain gearing operated by clutches connects parallel driving and driven shafts and is combined with friction reversing-gear. In the arrangement shown in Figs. 1 and 2, sprockets &c. S, 9 loose on the driven axle 10 of a motor-vehicle are geared to sprockets 3, 4, which, with a friction drum 5, are secured to a parallel driving- shaft 1. A pulley 11 secured to the shaft 10 is connected by a belt 15 to a drum 16 mounted on a movable arm 17. For forward speeds, the gears 8, 9 are alternatively pressed against the pulley 11 so as to be driven therefrom by friction clutch action. For reversed driving, the drum 16 is pressed against the drum 5. The friction surfaces may comprise leather or " Ferodo." In the arrangement shown in Fig. 3, a fly-wheel 25 is slid on feathers on a driving-shaft 20 so as to bring clutch surfaces 26 alternatively into engagement with surfaces 24 upon loose sprockets 22, 23. Reversed driving is effected by connecting driving and driven discs 30, 31 through a perpendicular shaft 32, which carries rollers 33, 34, and is movable, into and out of engagement.
Patent GB-875219-A (GB)
Title: Improvements in or relating to methods of producing encapsulated capacitors
Inventor: COTTON JAMES HENRY
IPC: H01G13/00
Filed: 1959-07-07
Abstract: 875,219. Capacitors. DUBILIER CONDENSER CO. (1925) Ltd. June 2, 1960 [July 7, 1959], No. 23293/59. Class 37. In a method of making a rolled interleaved encapsulated capacitor each element A1, A2, &c. is positioned between parallel wires D, Fig. 1, the terminals of each being soldered by iron C to the wires to form a ladder-like structure. The capacitors are severed by a blade E2, Fig. 2, and after covering with a slotted sleeve F are located in the mould E, E3 and therein encapsulated with a thermoplastic material of the same kind as the sleeve. A plurality of ladder-like structures may be fed simultaneously to the clamping, cutting and moulding means, and may be sleeved in an elongated slotted sleeve G, Fig. 5, prior to encapsulation.
Patent GB-910552-A (GB)
Title: Polymerization of conjugated dienes
IPC: C08F36/04
Filed: 1961-06-28
Abstract: In a continuous process for the polymerization of a conjugated diene alone, or in admixture with another monomer containing a CH2=C< group, in a reaction zone in the presence of a catalyst comprising an organometallic compound or a metal hydride of Group I, II, or III of the Periodic System with the subsequent recovery of polymer, and unreacted conjugated diene by vaporization from the reaction zone effluent, the recovery process is modified by adding to the effluent to inactivate the catalyst prior to the recovery step, a material having active hydrogen groups and which is non-volatile under the conditions employed for the recovery steps.  The inactivating material may be a substance which modifies the properties of the polymer, and it may be added to the effluent in an amount in excess of that required to inactivate the catalyst.  The polymerization may be carried out in a plurality of reaction zones connected in series and the inactivating material may be added to the effluent from the last of the zones.  In the vaporization step, a portion of the vapour stream containing diluents used in the reaction zone and unreacted conjugated dienes may be returned to the polymerization process. The material containing active hydrogen groups may be bedroquinone, pyrogallol, catechol, guaiacol, hynzoquinone, tetraphenylhydrazine, aniline, quinoline, nitrobenzene, benzyl mercaptan, stearic acid, glycols, glycerol monoesters, alkyl gallates, xanthogen polysulphide, N-substituted dithiocarbamates, glycerol, alkyl polysulphides, furfural, or a rosin acid.  The conjugated diene may be butadiene-1,3, isoprene, 2,3-dimethyl-1,3-butadiene, 2,3-dimethyl-1,3-pentadiene, 2-methyl-3-ethyl-1,3-pentadiene, 2-methoxybutadiene, or 2-phenylbutadiene.  The other monomer may be ethylene, propylene, 1-butene, isobutylene, 1-hexene, 1-octene, butene-2, pentene-2, hexene-2, heptene-2, 2-methylbutene-1, 2-methylhexene, 2-ethylheptene-1, 1,5-hexadiene, 1,4-pentadiene, 1,4,7-octatriene, cyclohexene, styrene, divinyl benzene, 3-vinyl toluene, 1-vinyl naphthalene, 3-methyl styrene, acrylonitrile, methacrylonitrile, methyl acrylate, methyl methacrylate, vinyl acetate, vinyl chloride, 2-methyl-5-vinyl-pyridene, 2-vinylpyridine, or 4-vinylpyridine.  The Specification contains many examples of catalyst components.  Preferred catalysts are mixtures of titanium tetraiodide and triethylaluminium, or tripropylaluminium, or tributylaluminium, titanium tetrachloride and triethylaluminium, or zirconium tetrachloride and triethylaluminium, or triisobutylaluminium and titanium tetrachloride, and iodine, or ethylaluminium dichloride and cobaltous chloride and pyridine. The diluents used are conventional hydrocarbons.  A flow diagram shows a continuous process of polymerization, and recovery of solvent, and monomer.  Specification 845,200 is referred to.
Patent GB-681846-A (GB)
Title: Improvements in expanders for fabric webs
IPC: D06C3/00
Filed: 1949-09-10
Abstract: 681,846. Feeding webs. SLATER, F. Dec. 11, 1950 [Sept. 10, 1949], No. 23451/49. Class 100 (i). Stretching webs transversely. - A cloth expander for use in jigs for treating or dyeing fabric, comprises an expander roller A having pinions b at each end which engage racks B at either side of the jig. The roller A may comprise a convex roller freely mounted on a shaft, or a curved bar comprising bushes covered with a flexible tube and freely mounted on a curved shaft. The position of the roller A along the rack may be adjusted by a hand-wheel on the end of the shaft, while the roller may be locked in position along the rack by a sprocket wheel D engaged by a chain d' secured to a spring d. The spring d is fixed to the jig frame C, while the chain d' carries a weight d<SP>2</SP>. A similar locking arrangement is provided at the opposite end of the rack B for use when the fabric is being passed in the reverse direction through the jig. In a modification, the roller may be locked by a pin carried by a rotatable collar mounted on the roller shaft, such that the pin can be brought between. the teeth of the pinion and the rack. Alternatively, a separate pin may be passed through one of a number of holes in a flange member carrying the rack B, the lower end of the pin engaging between the teeth of the rack.
Patent GB-891708-A (GB)
Title: Improvements in and relating to nuclear reactor charge chutes
Inventor: COMMANDER WILLIAM
IPC: G21C19/16
Filed: 1957-07-25
Abstract: 891,708. Handling nuclear fuel elements. ENGLISH ELECTRIC CO. Ltd. July 23, 1958 [July 25, 1957], No. 23665 /57. Class 39(4) A charge shoot 18 for re-fuelling the fuel element channels 20 in a reactor core 10 is arranged to be inserted in any one of a number of charge tubes 16 which are normally closed by long plugs 17 and comprises a central guide tube 22 and an outer tube 23 depending from an actuating head 21. To permit the shoot to serve a number of channels 20 the lower end of the tube 22 is pivotally connected to an articulated tube 22b through a tube 22c the tube 22b being controlled by a parallel motion linkage 24 and the tube 23 having an aperture at its lower end to permit this radial motion of the tube 22b. The tube 22b is sufficiently long to contain a fuel element 19 and its radial movement with respect to the shoot axis is controlled by a linkage 21a connected to mechanism in the head 21. Further mechanism in the head 21 permits rotational movement of the tubes 22, 23 together. A part of the tube 22 is surrounded by a radiation shield 29 and a further shield 30 surrounds the tube 23. In use, a first machine which accommodates the shoot 18, is sealed to the selected tube 16 and the plug 17 is withdrawn, the shoot closed by shielding plugs 27, 28 then being lowered so that the end 25 of the tube 23 engages in a pivot cup in the core 10. The first machine is withdrawn and replaced by a fuelling machine having a fuel element magazine and a grab, the grab being lowered to lift the plugs 27, 28 into empty chambers in the magazine. The grab is then used to remove spent fuel elements and insert new elements and finally to replace the plugs 27, 28, the plug 17 then being replaced by the first machine. The fuelling machine cools the shoot when in use by withdrawing coolant gas from the pressure vessel 12, the gas being passed to a heat exchanger and returned through helical gas ducts 31 in the shield 29.
Patent GB-1441854-A (GB)
Title: Printers matrices
IPC: C08L21/00
Filed: 1974-05-29
Abstract: 1441854 Printers' matrices SEMPERIT AG 29 May 1974 [15 May 1973] 23733/74 Heading C3P A printer's matrix is made from a composition comprising a rubber, an ethylenically unsaturated polymerizable compound that acts as a softener for the rubber in the monomeric state, and a peroxide to act as curing agent and polymerization initiator. The composition may also contain a filler and plasticizer. The preferred softener is a diacrylate ester.
Patent GB-592507-A (GB)
Title: Improvements in the control of hopper type ventilators
IPC: E06B7/03
Filed: 1944-11-29
Abstract: 592,507. Ventilators. DRIFFIELD, J. Nov. 29, 1944, No. 23809. [Class 137] Ventilators for admitting air through an opening in a wall or roof or as shown through an unglazed portion of a window comprise a hopper formed of a back panel E which may be glazed and triangular ends B screwed to or integral with the window frame and with edges D forming a ledge to support the back panel. The top of the hopper is arranged above the level of the top of the inlet and a shutter G is rotatably mounted on an axle J passing through the hopper ends. An arm M secured to one end of the axle has a threaded projection at the other end passing through a slot in a quadrant N the arm being locked in any position by a threaded knob O.
Patent GB-659475-A (GB)
Title: Improvements relating to the fusion of highly reactive and refractory metals
IPC: C04B35/48
Filed: 1949-09-15
Abstract: Comminuted refractory metals of Group IV of the Periodic System, and their alloys, are fused in an inert atmospheric environment in a container formed from a fused mixture of zirconium oxide and one or more of the oxides of the alkaline earth metals, including magnesium and beryllium, in proportions corresponding to the respective meta-zirconate compound or compounds.
Patent GB-997516-A (GB)
Title: Disposable tissue sock and one-piece tissue paper blank for same
IPC: A43B3/10
Filed: 1964-06-09
Abstract: 997,516. Socks. M. TIBBITTS. June 9, 1964, No. 23831/64. Heading A3B. A disposable sock comprises a V-shaped tissue paper blank as shown. As shown the edges 21, 23 of a front notch are sewn together to provide a toe piece, the ends 36 to provide a heel and the sides 32 to lie under the foot. An elastic band 18 is sewn to the top 24. The sock may be used to protect the foot from infection.
Patent GB-841189-A (GB)
Title: Bis-triazinylamino-stilbene compounds
Filed: 1958-07-25
Abstract: Bis-triazinylamino-stilbene compounds of the formula <FORM:0841189/IV(a)/1> wherein X is hydrogen or a cation such as an alkali metal, ammonium, C1-4 alkyl ammonium or C1-4 alkylol ammonium ion, are used to improve the whiteness of spinning masses composed of polyesters, polyamides and polyacylonitrile; plastics and resins.ALSO:The invention comprises bis-triazinylamino-stilbene compounds of the formula <FORM:0841189/IV(b)/1> wherein X is hydrogen or a cation such as an alkali metal, ammonium, C1-4 alkyl ammonium or C1-4 alkylol ammonium ion.  The compounds are prepared by reacting cyanuric chloride successively in either order with 4:41-diaminostilbene - 2:21 - disulphonic acid, metanilic acid and diethanolamine, followed if desired by neutralization with the appropriate base.  The compounds are used to improve the whiteness of unbleached calico; textiles or spinning masses composed of polyesters, polyamides and polyacrylonitrile; plastics, resins, lacquers, soaps, leather and natural or regenerated cellulose for production of paper.ALSO:Bis-triazinylamino-stilbene compounds of the formula:  <FORM:0841189/IV (c)/1> wherein X is hydrogen or a cation such as an alkali metal, ammonium, C1-4 alkyl ammonium or C1-4 alkylol ammonium ion, are used to improve the whiteness of unbleached calico, textiles composed of polyesters, polyamides and polyacylonitriles, leather, and natural or regenerated cellulose for the production of paper.ALSO:Bis - triazinylamino - stilbene compounds of the formula <FORM:0841189/III/1> wherein X is hydrogen, alkali metal, ammonium, C1-4 alkyl ammonium, or C1-4 alkylol ammonium, are used to improve the whiteness of soaps.