baber/WOPTO huggingface dataset:
Patent GB-172858-A (GB)
Title: Improvements in the manufacture of sodium thiosulphate
IPC: C01B17/64
Filed: 1920-12-01
Abstract: 172,858. Hargreaves, L., and Dunning- ham, A. E. Dec. 1, 1920. Sodium thiosulphate. - The production of strong solutions of thiosulphate from which the salt is crystallized without any evaporation as described in Specification 12599/15 is carried out by simultaneously forming sodium sulphite from sodium carbonate and sulphur dioxide, and digesting the sulphite with sulphur, sodium carbonate being preferably maintained in small excess throughout. Sulphur dioxide from a burner d is admitted by a pipe c to the top of a tower a having shelves v down which flows sodium thiosulphate solution which contains some sodium carbonate or bicarbonate. Sodium carbonate and sulphur are charged in at b where carbon dioxide and nitrogen escape. The reaction mixture passes by a pipe f carrying a froth-destroying device g into a digester e which may be jacketed for heating or cooling, and is provided with a stirrer n, Fig. 2. Liquor from the digester e is raised by a pump h and supplied by a pipe i to the top of the tower a. From the pipe i a portion of the liquor may be withdrawn by a pipe o and fed through a froth-destroying device p to a filter tank j, but normally the liquor in the digester e is circulated to and from the tank j through pipes m, k, Fig. 2, under the action of the stirrer n. In the tank j a number of vacuum filterplates 5 of known form hang, clear solution being withdrawn from the interior of the plates and led to a store tank t. The vacuum pump is connected with a pipe u. The liquor may be withdrawn from the apparatus by a pipe q to an auxiliary filter tank r when it is desired to remove accumulated impurities such as sodium sulphate which are insoluble in the thiosulphate solution, but alternatively a proportion of the solid materials separated on the filter plates 5 may be continually withdrawn and rejected. The frothdestroying devices consist of a tubular part g containing a spindle 2 carrying discs 3 which are perforated and carry downwardly-directed vanes 4 to direct the liquid particles downwards.
Patent GB-620131-A (GB)
Title: Improvements in or relating to automatic tuning systems
IPC: H03L7/02
Filed: 1945-12-14
Abstract: 620,131. Phase measurement. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and STOKES, V. O. Dec. 14, 1945, No. 33964. [Class 37] [Also in Group XXXV] Fig. 1 shows an automatic control system for the tuned circuit L1, Cl of an H.F. amplifying tube V1 of a radio frequency transmitter in which a voltage derived from the drive input is shifted 90 degrees in phase by condenser C4 and fed to the grids of control tubes V3, V4, whose cathodes are earthed through differentially variable resistances R2, R3, and the coils of a differential relay RY1 which controls the direction of rotation of a motor M driving the variable condenser C1. The control tube anodes are respectively fed with equal and opposite voltages derived from the amplifier output. When L1, C1 is correctly tuned to the drive frequency, the respective anode and grid voltages of the control valves, are in quadrature, cathode currents are equal, and the relay is inoperative, balance being adjustable by resistances R2 and R3. Mistuning changes the phase of the control valve anode voltages, the cathode currents become unbalanced, and the relay operates; driving the motor in the appropriate sense to re-adjust the tuned circuit to the drive frequency. In Fig. 2 (not shown), the tuning of a push-pull H.F. amplifier is similarly controlled.
Patent GB-1044460-A (GB)
Title: Novel anticoccidial compositions and a process for the manufacture thereof
IPC: A23K20/137
Filed: 1965-08-09
Abstract: Anticoccidial compositions comprise a carrier e.g. a poultry feed or drink or a premix therefor, 4-sulphanilamido-2,6-dimethoxy-pyrimidine or a salt thereof and 2,4-diamino-5-(3,4-dimethoxy-benzyl)-pyrimidine or a salt thereof. The treatment of poultry with such compositions is also claimed.
Patent GB-1536119-A (GB)
Title: Carpet stretcher having means for adjusting shank length
IPC: A47G27/04
Filed: 1977-08-12
Abstract: 1536119 Carpet stretchers UNITED STATES GYPSUM CO 12 Aug 1977 [13 Aug 1976] 34014/77 Heading A4X A carpet stretcher comprises a housing 10 including a head 12 having adjustably mounted carpet-engaging pins and a handle 13 having internal grooves (26, 27) spaced longitudinally to provide therebetween spaced laterally disposed stops (28, 29), and also comprises a shank 16 telescopically received within the handle 13 and having a knee pad 18, fixed detents 60 for selective engagement with the stops (28, 29) and spring-loaded ballbearings 75 for selective engagement with groups of depressions (37, 49) disposed at spaced locations along the inside of the housing to locate the shank 16 in its selected longitudinal position, the shank being rotatable through 90 degrees to disengage the detents 60 from the stops (28, 29) to permit longitudinal adjustment of the shank. The housing consists of inter-connected integral upper and  lower aluminium die castings and the pins are adjusted by a knob 21, and a guard plate (22)  prevents accidental engagement with the pins when  they are withdrawn within the head.
Patent GB-808786-A (GB)
Title: Improvements in thrust bearings
IPC: F16C17/04
Filed: 1956-11-07
Abstract: 808,786. Bearings. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Nov. 7, 1956 [Nov. 18, 1955], No. 34026/56. Class 12 (1). A thrust bearing which allows of lateral, rotational and tilting movement of a load 4 with respect to a supporting surface 3 comprises a cylinder 1 containing a piston 2, having a barrelled periphery, the space 5 in the cylinder 1 between the piston 2 and supporting surface 3 being filled with a fluid. The cylinder 1 is stepped. Sealing rings 6, 7 are provided at the lower ends of the piston 2 and cylinder 1 respectively. The fluid may be grease or oil. In a modification, the inner periphery of the cylinder is convex and the piston is cylindrical.
Patent GB-323609-A (GB)
Title: Improvements connected with bottle washing machines
IPC: B08B9/32
Filed: 1928-11-21
Abstract: 323,609. Chignell, J. Nov. 21, 1928. Bottles, washing. - Bottles 16 are inverted in carriers 18 over nozzles 17 adapted to be supplied with liquid under pressure, the carriers being mounted, as shown, on a rotating platform 3 located within a tank 9. The carriers are provided with toothed gearing and are geared together in pairs, the outer ring of carriers being engaged by a toothed annulus 23. The nozzles are connected by pipes 12 to a distributing chamber 13 communicating through a pipe 14 with a pump 15, the chamber being provided with ports arranged so that liquid is cut off from the bottles as they reach the loading and unloading position.
Patent GB-1168145-A (GB)
Title: Method of Sealing Tubular Members
IPC: H01J9/40
Filed: 1967-07-25
Abstract: 1,168,145. Making discharge tubes; pipe end closing; seaming; welding by fusion or pressure. WESTINGHOUSE ELECTRIC CORP. 25 July, 1967 [28 Sept., 1966], No. 34158/67. Headings B3A, B3J, B3H, B3R and B3W. [Also in Division H1] The metal tubing 16, e.g. of an electric discharge lamp or an electronic power tube, is vacuum sealed by deforming a portion of the tubing, pinch sealing the deformed portion, separating the tubing along the pinch seal and arc welding the edges formed by the separation. The deforming is performed by a pair of cooperating hydraulic rams 22 which move together and have jaws 26 releasably mounted thereon by springs 28. After the deforming the rams are withdrawn, the jaws removed, and the tubing nipped to effect a cold weld between a pair of tungsten carbide dowels 24. The nipping preferably separates the tubing, but separate cutters may be used. The tubing end is then housed in a spring holder 30 in a plastics enclosure 34 containing helium or argon and tungsten inert gas arc welded along the seam. The tubing is preferably niobium or tantalum but copper and copper alloys may be used. A coiled tungsten electrode 18 is secured to each piece of tubing 16 and the lamp filled with argon, mercury or sodium before sealing.
Patent GB-872540-A (GB)
Title: Method for making a leather shoe sole and/or heel provided with rubber inserts
IPC: A43B13/26
Filed: 1957-11-01
Abstract: 872,540. Moulding soles. ODERMATT, A. Nov. 1, 1957, No. 34237/57. Class 87(2). [Also in Group VII] A method of moulding rubber inserts 3 into a leather sole 1 which has holes 2 opening into recesses 5 on the tread face comprises placing the sole 1 into a mould, having cavities defined by upstanding walls which engage the recesses 5, filling the holes and cavities with unvulcanised rubber and then vulcanising by heat. The dimensions of the cavities and walls are such that the head of the insert 3 is larger than the hole 2 but smaller than the recess 5. In view 'if the heat applied the leather sole is preferably of chrome sole leather, vegetable chrome tanned leather or chamois leather. A layer 6 of rubber may be formed on the inner surface of the sole and the holes may be of circular, oval or rectangular cross-section.
Patent GB-1028932-A (GB)
Title: Production of cadmium sulphide crystals
Inventor: FIRTH FRANK
IPC: C01G11/00
Filed: 1961-09-25
Abstract: Hollow cadmium sulphide crystals are produced by vaporization and condensation of cadmium sulphide containing a minor proportion of an alkali metal compound; preferably the compound is sodium chloride, sulphate or sulphide in an amount to provide 0.004 to 0.04% by weight of sodium in the mixture.  The mixture is vaporized in a high temperature zone of a tube, e.g. a silica tube at 1100-1150 DEG  C. into a stream of inert gas, e.g. nitrogen and deposited in a lower temperature zone at 950-1050 DEG  C. downstream in the form of crystals, a proportion of which are hollow.  The crystals may be annealed by progressive reduction of the temperature of the lower temperature region to below 200 DEG  C.
Patent GB-1399447-A (GB)
Title: Support device for suspension files
IPC: F16B21/09
Filed: 1972-05-01
Abstract: 1399447 Suspension filing SWINGLINE Inc 1 May 1972 [7 May 1971] 34381/74 Divided out of 1395411 Heading B6E A filing folder suspension device comprises a first member 15B provided with a groove 40B in which is received slidably a second member 26B carrying the filing folder 42B. The second member is formed by a perforate web portion 20B and a cross-piece 36B whose depending flanges 29B are received slidably in the groove 40B. Cross-piece 36B and web 16B of the members are provided with index label holders in the form of grooves 27B, 22B in which the labels are located by ribs 28B, 23B.
Patent GB-1012366-A (GB)
Title: Improvements in or relating to methods of manufacturing curved gas discharge lamps
IPC: H01J9/38
Filed: 1963-09-02
Abstract: A method of manufacturing a curved, e.g. circular, discharge lamp, in which the gas pressure at room temperature is lower than atmospheric pressure, by bending in the hot state a straight glass tube provided at both ends with a closure member connected in a gas-tight manner to the wall of the tube, at least one of these members having an opening through which the interior of the tube communicates with the space outside the tube, which straight tube is subjected to a heat treatment during which unwanted gases are removed from the interior of the tube, is characterized in that during the last stage of the heat treatment so great a quantity of rare gas is introduced into the tube that the pressure in the tube becomes substantially equal to atmospheric pressure, the tube is subsequently bent, the bent tube is then pumped to the desired pressure and, if desired, is provided with other filling constituents,e.g. mercury or sodium, and finally is closed.  The unwanted gases may be removed by flushing with mercury or an inert gas.  The heat treatment is effected at a temperature lying just below the softening point of the glass tube.
Patent GB-824922-A (GB)
Title: Connecting device
Inventor: BARHAM LESLIE JAMES
IPC: B62D33/077
Filed: 1954-11-30
Abstract: 824,922. Road-vehicle undercarriages. BARHAM BROS. (COACHBUILDERS) Ltd. Feb. 10, 1956 [Nov. 30, 1954], No. 34601/54. Class 108(2) A bracket connecting a longitudinal beam L and a cross beam C has a side portion 2 attached to the beam C, and a base portion 1 attached to the beam L by a clamp 8 intermediate the ends of the base 1. The base portion 1 is preferably channel-shaped. The clamp 8 is preferably a U-shaped rod 8 encircling the beam L and terminating in threaded portions passing through bosses 5, 6 on the side portion 2 and secured therein by nuts. A wood block B may be interposed between the base portion 1 and the beam L, and a metal bearing plate may be inserted between the block B and the beam C.
Patent GB-929837-A (GB)
Title: Improvements in testing devices for large structural parts, especially aircraft wings
IPC: G01M5/00
Filed: 1959-10-13
Abstract: 929,837. Testing physical qualities of materiats. LOSENHAUSENWERK, DUSSELDORFER MASCHINENBAU A.G. Oct. 13, 1959 [Nov. 14, 1958], No. 34615/59. Class 106 (2). [Also in Group XXXIII] In apparatus for testing aircraft wings a number of points of which are to be loaded concurrently by different forces which are produced in hydraulic testing cylinders each associated with a pressure regulating device, each pressure regulating device is constructed as a pressureconverter 6 and is adjusted to a desired rated value and the pressure-converters 6 of all the testing cylinders are connected to a common controlling-pressure conduit 12. A pressure pipe 12 is connected to the cylinders 11 of each pressure converter 6. In each converter, a piston 10 acts on a balance beam 8 pivoted at 9 and the beam in turn acts on a valve 13 and thus controls the pressure of the fluid supplied from a pressure pipe 14 to a pipe 4<SP>1</SP> leading to the testing cylinder (not shown). By displacing the various pivots 9. the pressures supplied to the pipes 4<SP>1</SP> may be varied. If the controlling pressure in the pipe 12 varies, the ratios of the pressures in the pipes 4<SP>1</SP> remain constant although the actual values vary. Additional loading weights are attached to the beam to balance constant forces.
Patent GB-1114641-A (GB)
Title: Two-way amplifier for telephone systems
IPC: H04M9/08
Filed: 1965-08-13
Abstract: 1,114,641. Automatic gain control. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 13 Aug., 1965 [14 Aug., 1964], No. 34726/65. Heading H4R. A continuous control of the gain of go and return channel amplifiers of a two-way transmission system is made in dependence upon the signal level of both channels in a manner which discriminates against noise in a channel. Gain control signals are produced by rectifying a signal representative of a channel energy, then removing the D.C. level from the resulting signal, which renders an alternating signal for further rectification to remove the noise component and leave only speech components. The time constant characteristic of rectifiers making the second rectification is such as to retain the adjusted degree of gain between syllables of a spoken word. In the arrangement shown in Fig. 2 the total quiescent amplification of the amplifiers VF1 and VF2 exceeds the total acoustic attenuation D 1  and D 2  at the terminating stations M 1 -H 2 , M 2 -H 1 . A control voltage U 1  or U 11  comprising a noise and speech signals after rectification at L 1  passes through circuit DF to remove the direct voltage components and through fullwave rectifier L, where the noise component is removed to provide one input U 4  to the summing circuit S 1  or S 2 , which input acts to adjust the gain upwards. The other input U 7  which is dependent upon the signal strength in the other channel is always greater than U 4  and acts to adjust the gain downwards. The sum U 5  or U 6  of these voltages is then fed to the amplifier gain control. Any self-commencing oscillation in the loop reduces the gain of both amplifiers. In another arrangement (Fig. 1, not shown) where the total quiescent amplification is less than the total attenuation, the voltage U 7  is omitted and the voltages U 5  and U6 are the mean of voltages U 4  and U 41  but so oppositely poled as to provide a greater gain in the active channel than the passive one.
Patent GB-653404-A (GB)
Title: Improvements in or relating to rotary drum electric driving gears for whale boilers or the like
IPC: F16H57/025
Filed: 1947-12-30
Abstract: 653,404. Digesters. AKTIESELSKAB KVAERNER BRUG. Dec. 30, 1947, No. 34849. Convention date, Sept. 7, 1945. [Class 64(i)] A whale boiler has an outer casing 1 with an end closure 2 to which is secured a structure 3 supporting the driving gear for the rotary drum within the casing. In a casing 5 is a worm gear driven by an electric motor 9 coaxially coupled to the worm shafts and supported on a bracket 10 integral with or secured to the structure 3. The worm wheel shaft carries a pinion 6 engaging a spur wheel 8 keyed to the shaft 7 of the drum. The common axis of the motor and worm and the line joining the centre of the pinion 6 with the shaft 7 are inclined at an acute angle to reduce the size of the bracket 10, the motor being thus located within the end contour of the boiler.
Patent GB-773769-A (GB)
Title: Improvements in or relating to spacers for steel inserts in reinforced concrete
IPC: E04C5/18
Filed: 1955-12-07
Abstract: 773,769. Reinforced concrete. SPATZ, F. and SPATZ, W. Dec. 7, 1955 [Dec. 8, 1954. Sept. 14, 1955], No. 35050/55. Class 20(4) A spacer for steel inserts in reinforced concrete consists of a highly elastic disc 1, made e.g. of sheet steel which can be hardened, and having a central hole 3 whose diameter corresponds approximately to the outer diameter of the round steel serving as reinforcement. The disc has radial corrugations 4 whose amplitudes progressively decrease from a maximum at the centre, to a minimum at the periphery of the disc. A slot 2 is preferably provided to facilitate attachment to a reinforcing rod. In a modification, Fig. 3, the disc, intended for double-rod type of armourings has a sectorshaped cut out 7, 8 to accommodate one rod 10, the other rod 9 being received in the hole 3 in the disc. The disc can be made by bending a strip of steel into an annular shape and simultaneously corrugating it by means of profiled .rollers, or the like.
Patent GB-1463346-A (GB)
Title: Power unit including a supercharged water-cooled internal combustion engind
IPC: F02B29/04
Filed: 1974-08-08
Abstract: 1463346 Cooling IC engines; cooling charge KLOCKNER-HUMBOLDT-DEUTZ AG 8 Aug 1974 [28 Aug 1973] 35051/74 Heading FIB [Also in Division F4] A water-cooled supercharged internal combustion engine 1, Fig. 1, is provided with a cooling system comprising air-cooled radiators 8 for cooling the engine's coolant water and air-cooled coolers 4 for cooling the engine's charging air, cooling air being supplied to the radiators 8 and coolers 4 by a fan (13), Fig. 2 (not shown), located at one end of the engine, means, including guide-plates 20a, being provided to prevent the cooling air which exhausts from the coolers 4 from entering the cooling air intake sides of the radiators 8. The engine 1 comprises two rows of cylinders which are arranged in V-formation and which are supplied with charging air from manifolds 3 communicating with the coolers 4. The charging air is supplied to the coolers 4 by a combustion-exhaust gas turbocharger 7. The fan (13), Fig. 2 (not shown), supplying the cooling air is driven from the engine crank-shaft through a hydraulic regulator (16) and bevel gears (14, 15). The cooling air flows vertically through the radiators 8 and coolers 4 in the embodiment of Fig. 1. In the modified embodiment of Fig. 3, the cooling air flows horizontally through the radiators 8 and coolers 4. In the further modified embodiment of Fig. 6, the engine 1 comprises a single row of cylinders, and cooling air flows vertically upwards through the radiator 8 and obliquely upwards through the cooler 4. In the embodiment of Fig. 6, the cooling air fan 13 is driven through a V-belt 21.
Patent GB-1427596-A (GB)
Title: Device for sampling molten metal
IPC: G01N1/14
Filed: 1973-07-23
Abstract: 1427596 Apparatus for sampling molten metal R A FALK and W R FALK 23 July 1973 [11 Aug 1972] 35064/73 Heading B3F [Also in Division G1] A device for sampling molten metal comprises a sample cartridge 16 including a mould cavity 32 having an entry port and an air vent, a lance 10, means for securing the sample cartridge to the lance, and means for reducing the pressure within the mould cavity. The mould consists of two halves 26 and 28 welded to a spacer 35 which provides a gap (34) forming an air vent. Pin sample moulds 84 in the form of glass tubes provided with air vents 85 may project from the main mould cavity 32. The mould is supported in a chamber 12 at the end of the hollow lance 10 by means of a refractory disc 18 and a sealing gasket 42. When the pressure in the chamber 12 is reduced, molten metal flows into the mould through a quartz tube 30 surrounded by a paperboard sleeve 36. The sample cartridge 16 may be ejected from the chamber 12 by a rod 83. In the embodiment shown, the pressure in the chamber 12 is reduced by means of a piston 54 which can be held down against the action of a spring 60 by means 70. On releasing the holding means 70, the piston is urged upwards by the spring 60 and this causes a reduction in pressure in the chamber 12 and mould cavity 32. In other embodiments the pressure is reduced by directing a stream of air transversely across the end of a tube communicating with the lance, or by a squeeze bulb at the end of the lance.
Patent GB-882702-A (GB)
Title: Improvements in or relating to combined water-closet basin and cistern units
Inventor: DURDY ARNOLD
IPC: E03D1/26
Filed: 1958-10-31
Abstract: 882,702. Sanitary closets. IDEAL BOILERS & RADIATORS Ltd. Aug. 25, 1959 [Oct. 31, 1958], No. 35077 /58. Class 26. A combined water-closet basin and cistern unit of the kind in which the cistern 1 is directly attached to, or mounted upon, the water-closet basin 2 having a siphonic discharge passage with traps 9, 10, wherein a siphon 15 within the cistern 1 has a downcomer leg 16 to convey flushing liquid to the basin 2, which is fitted with a transverse tube 33 formed in its underside with an opening 40 and communicating with a space 14 between the traps 9, 10 so that, when flushing, air is extracted therefrom. Below the tube 33 the leg 16 may be integral with a tubular extension 17, (protruding through the cistern bottom 18 in to a flushing chamber 6 around the bowl 7 of the basin 2), with both of which the siphon 15 may be formed in one piece of vitreous china or ceramic material, sealing rings 28, 29 over the extension 17, being interposed between a flange 19 and the bottom 18 and between the bottom 18 and the platform 4 of the basin 2, respectively. The extension 17 may be integral with the flange 19, engaged by bolts 20 to secure together the siphon 15, the cistern 1 and the platform 4 in conjunction with nuts 22 and wing nuts 27, washers 21, 23, 26 and a rubber sealing element 24. The tube 33 is connected to a tube 38 extending through aligned holes in the flange 19 and the bottom 18, to communicate with the space 14 and engaging in a duct 13 formed in the basin 2, passing through the chamber 6 and the tube 33 extends across an enlarged part 31 of the leg 16, towards which the bore 30 of the leg 16 converges and from which the bore 32 of the extension 17 diverges.
Patent GB-1237404-A (GB)
Title: Improvements in and relating to electrical circuits
Inventor: DIACHKOV VLADIMIR NIKOLAEVICH
IPC: H04M19/00
Filed: 1968-07-23
Abstract: 1,237,404. Telephone exchange apparatus. V. N. DIACHKOV, V. V. MAKAROV, and G. I. KARASEV. 23 July, 1968 [27 July, 1967], No. 35084/68. Heading H4K. A feedbridge for a cord circuit connects battery to each leg of the A and B loops over inductive windings 1, 2, 3, 4, on a common magnetic core, capacitors 6 and 7 isolating the loops and the windings being such that magnetization due to D.C. in the loops cancels out while magnetization due to A.C. transmitted across the bridge is additive.