baber/WOPTO huggingface dataset:
Patent GB-852142-A (GB)
Title: Improvements in or relating to the treatment of steel in the manufacture thereof
Inventor: ATTERTON DAVID VALENTINE
IPC: C21C7/00
Filed: 1958-03-21
Abstract: A process for degassing molten steel comprises bubbling carbon monoxide and/or carbon dioxide having a moisture content of not more than 1% through the molten metal, the gas being introduced as such from an external source.  The gas may be passed through a metal or metal and ceramic lance which may end in a porous plug, or may be passed through a porous plug in the bottom of the vessel holding the metal, or may be blown across the surface of the metal help in a furnace or ladle.  The process is preferably carried out immediately prior to casting.
Patent GB-1076507-A (GB)
Title: Improvements in or relating to the testing of electrical circuits
Inventor: PIERRET JEAN-MARC
IPC: H04Q1/24
Filed: 1966-03-03
Abstract: 1076507 Protective arrangements INTERNATIONAL BUSINESS MACHINES CORPORATION 3 March 1966 [26 March 1965] 9262/66 Heading H4K 1A2 K1A8 K1L3 K1W K1U1 In an electric circuit having a plurality of circuit elements each connected in series with a respective current sensitive cut-out device, a testing circuit operable independently of the condition of the elements is used to apply a test signal of sufficient magnitude to the circuit such that if any of the elements is in a low impedance state, sufficient current flows to operate the associated cut-out device. As applied to a matrix switching circuit each of the row and column drivers comprises a pair of controllable impedance elements, e.g. transistors T<SP>1</SP> 1j, T<SP>1</SP>2j and T1i and T2i respectively, each element being connected in series with a fuse F<SP>1</SP> 1j, F<SP>1</SP> 2j, F1i or F2i. A row testing circuit, e.g. including a silicon-controlled rectifier Tx, is effective to apply a test signal to all the rows in parallel and a column testing circuit, e.g. including a silicon-controlled rectifier Ty, is effective to apply a test signal to all the columns in parallel. These test signals applied individually will blow the fuse associated with any element having a low impedance fault. The diode switch at each cross point of the matrix comprises a pair of parallel diodes #1ij and #2ij in series with fuses. Coincident application of test signals to the tows and columns is effective to blow the fuse in series with a defective diode.
Patent GB-927584-A (GB)
Title: Improvements in or relating to a machine for milling grooves in masonry or the like
IPC: B28D1/18
Filed: 1962-03-09
Abstract: 927,584. Grooving masonry. O. BAIER. March 9, 1962 [March 25, 1961], No. 9272/62. Class 124. A machine for cutting grooves in masonry walls comprises a cutter 16 mounted on a shaft 5 which is provided with such a degree of resilience in its bearings that it is adapted to be deflected radially of the axis of the shaft and provided with means 12, 13, 14 for producing radial vibrations of the shaft during rotation thereof. The machine is operated by an electric motor which drives the shaft 5 via a gear-box 2 and a gear 4 secured to one end of the shaft. The shaft is mounted in a self-aligning bearing 6 and bearing 7 which is itself mounted in a resilient bush 8 secured in the machine housing. A ratchet-type wheel 12 is fixed to the shaft which engages with a roller 14 mounted in a block 13 abutting a rod 17. In operation, when the electric motor is started via a switch 24 actuated by a pivoted handle 22, the shaft 5 rotates and, due to the pivoting action of the shaft about the ball-bearing 6 and the resilience of the bush 8, the shaft vibrates. The vibrating action may be stopped by rotating the rod 17 by a handle 19 so that a recess 20 is aligned with the block 13 and thereby permits the disengagement of the roller 14 with the wheel 12. A second handle 21 is provided and, to prevent inadvertent operation of the machine a locking latch 26 may be arranged to abut the handle 22.
Patent GB-557764-A (GB)
Title: New or improved pressure-regulating means for controlling the flow of fluids
IPC: G05D16/06
Filed: 1942-07-06
Abstract: 557,764. Pressure regulating valves. OGDEN, A. L., and KIMBER, H. July 6, 1942, No. 9320. [Class 135] A diaphragm-actuated pressure regulator has the easing formed in two parts, a base portion 1 with a central inlet port 2 and radial outlet passages 5 connected to ports in the upper face of the base and a dished and flanged cover 6 bolted to the base. The diaphragm 13 is clamped between a ring 14 resting on a packing 9 and: a dished part of the cover. The diaphragm is adjustably loaded by a spring 11 housed in a cup 10 formed integrally with the cover and arranged between a backing plate 16 for the diaphragm and an abutment 20 located by a boss 21 on a screwed adjusting spindle 12. The valve member 19 is hinged to member 17 attached to the diaphragm and co-operates with a seat detachably secured in a shoulder 3 at the upper end of the inlet passage.
Patent GB-759075-A (GB)
Title: Improvements in or relating to devices for reversibly folding endless paper strips
IPC: B65H45/20
Filed: 1954-03-30
Abstract: 759,075. Folding paper. PERINE-GUYOT & CIE-C. SUPLIGEAU. March 30, 1954 [April 13, 1953], No. 9322/54. Class 100 (1). A device for reversibly folding an endless strip of paper 3 in zig-zag form comprises two rotary cylinders 1, 2, in contact with one another to drive the paper, apertures 4 being provided on the periphery of each cylinder in communication with a vacuum pump to cause the paper to adhere to the cylinders alternately, rollers 5, 6 operating in conjunction with each cylinder to bring about the folding of the paper, safety scrapers and guides 8, 9 at the level of each roller to ensure the disengagement of the paper after the formation of the fold, and a regulating device 7 to bring the suction apertures 4 alternatively into communication with the vacuum pump and atmospheric pressure. The device 7 consists of a rotary valve connecting the apertures 4 to either the suction inlet 13 or the atmospheric vent 12, rotation of the valve being controlled by stationary cams C<SP>1</SP>, C<SP>2</SP> and cam followers M<SP>1</SP>, M<SP>2</SP> on cylinders 1 and 2 respectively. A suitable blade 16 for making a score line on the paper may be mounted on each cylinder to assist in the formation of the folds.
Patent GB-994015-A (GB)
Title: Improved observation device
IPC: G21F7/02
Filed: 1964-03-05
Abstract: 994,015. Viewing equipment for radioactive environment. S. CLAVE, and M. CLAVE. March 5, 1964 [March 5, 1963], No. 9412/64. Heading B4Q. [Also in Division G2] A device for observing the interior of an enclosure subjected to dangerous radiation comprises an afocal optical field reducing assembly 16b, 15b and an afocal field enlarging assembly 14b, 13b, optically aligned, each assembly comprising a planoconvex lens and a planoconcave lens separated by a transparent body of material ld or 1c affording protection against the radiation, the lenses being cylindrical with their generatrices parallel. To provide a periscope in which the viewing axis is offset, the bodies 1d, 1c have inclined surfaces, Fig. 2, not shown, so that total internal reflection of the light occurs. Specification 931,474 is referred to.
Patent GB-927344-A (GB)
Title: Improved feedback control apparatus
IPC: G05B19/06
Filed: 1962-03-12
Abstract: 927,344. Automatic control. HUTTENWERK OBERHAUSEN A.G. March 12, 1962 [Jan. 22, 1962], No. 9416/62. Class 38 (4). In a system for automatically controlling a variable subject to periodic variation, a control signal is stored for a period equal to one cycle of the variation less the delay time of the system, by a device comprising longitudinally movable rods arranged on a rotating member. The invention is applied to a system in which the depth of immersion of injection nozzles in molten metal of a rotary refining furnace is automatically controlled to eliminate variations in the analysis of the exhaust gases, which have a cyclic component due to irregularities in the furnace as it revolves, by delaying the control signal for a time corresponding to one furnace revolution less the time taken for correction to be effective. In Fig. 2, the control signal is applied to a servomotor 4 which adjusts means 5 in a vertical direction to set the position of rods 2 frictionally held by bending between holes in discs 7, so that, as discs 7 are rotated by a motor 21 at twice the speed of the furnace, the ends of the rods trace out the variation of the control signal. Inductive pick-off 14 provides follow-up signals for servomotor 4. Means 6, which follow the variations in position of the rods during rotation of discs 7, are movable on an arm, attached to an indicator 17a about the axis of discs 7 to a position which provides the necessary delay, and the delayed signal is derived from an inductive pick-off 20 operated by vertical movement of means 6. Potentiometer pick-offs may be substituted for the inductive pick-offs.
Patent GB-993886-A (GB)
Title: Improvements in or relating to methods for centrifugally casting metal objects and objects obtained thereby
IPC: F16C13/00
Filed: 1962-03-12
Abstract: 993,886. Moulds. ACIERIES D'HIRSON. March 12, 1962 [March 13, 1961], No. 9465/62. Heading B3F. Articles having a wear-resistant rim, a hub and a part interconnecting said rim and hub such as live rollers for travelling cranes, telpher pulleys, gears and the like, are made by centrifugally casting in a mould cavity whose shape is such that the cross-section of the part connecting the rim 2 and hub 1, i.e. spokes 6 decreases outwardly from the hub and additionally decreases abruptly at the junction 7 with the rim. The metal is introduced at a temperature as close as possible to but above the solidification temperature and at a speed to produce laminar flow.
Patent GB-582618-A (GB)
Title: Improvements in thermionic valves
IPC: H01J19/00
Filed: 1941-07-26
Abstract: 582,618. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. July 26, 1941, No. 9519. [Class 39 (i)] To reduce hum in a thermionic valve having a cathode heated by alternating current, the wires of the filament (or filamentary heater in an indirectly heated cathode) are arranged parallel or substantially parallel to the wires of the grid or grids. It is shown that the deflection of the electrons by the alternating magnetic field of the heating current takes place between the grid wires rather than across them, so that the grids do not collect hum components. Both control and screen grids may be parallel to the cathode, which may comprise four filaments F, Fig. 6, each between two grid wires G, and all parallel to the axis of cylindrical anode P. In Fig. 9, the filament F is a rectangular zig-zag, and the grid G is formed from parallel wires stretched between insulating plates Q, R ; a similar arrangement with a double hairpin filament substantially inclined to the grid wires is stated to be known. In a further modification, the filament and grid may both be coaxial helices, but this is disclaimed for indirectly heated cathodes. The wires may be replaced by strips or tapes and either across or parallel to the electron stream. Specification 301,514, [Class 39 (i)], is referred to.
Patent GB-147271-A (GB)
Title: Improvements in gyroscopic turn-indicators for aircraft
IPC: G01C19/42
Filed: 1919-04-14
Abstract: 147,271. Smith, W. S., and Lindemann, F. A. April 14, 1919. Gyroscopic apparatus. - Relates to turn-indicators for aircraft, of the kind in which the ratc of turning is measured bv the restrained precession of a gyroscope, the rotor of which is rotated by air flowing past the craft, and consists in constructing the rotor in the form of a windmill with a heavy rim and with spokes acting as an air-screw. As shown in Fig. 1, the windmill rotor 13 is mounted in the forked end of a frame 16 rotatable about its axial line, which is parallel to the transverse axis of the aircraft. The frame carries at its inner end a gear segment 24 gearing with a pinion 26 which turns a pointer 28. The segment 24 carries a bifurcated controlling-spring 31, Fig. 2, bearing against an abutment 32 on an adjustable screw 33. In a modification, the spokes of the rotor 13 are replaced by a solid web through which suitably inclined holes are bored. The rotor and its frame may be enclosed in a tubular shield.
Patent GB-268552-A (GB)
Title: Improvements in the manufacture of cellulose derivatives
IPC: C08B13/00
Filed: 1926-04-10
Abstract: 268,552. Courtaulds, Ltd., Glover, W. H., and Diamond, C. April 10, 1926. Cellulose acetates, and processes for making filaments and films therefrom; cellulose ethers.- Cellulose acetates suitable for the manufacture of filaments, films, &c. are prepared by treating with acetic anhydride an ethyl cellulose which is insoluble in water, dilute alkali and the common organic solvents, and contains not more than one ethyl group to each molecule cf cellulose (C<6>H<10>O<5>), but not less than 4 per cent of ethyl. Such an ethyl cellulose is prepared by treating alkali cellulose with a restricted quantity of diethyl sulphate at a temperature not substantially exceeding the normal temperature, the product being finally washed and dried. The process is particularly applicable with the use of wood pulp as the starting material, but other forms of cellulose such as cotton linters may be employed. In examples, the ethyl cellulose is prepared from sulphite wood pulp by the following sequence of operations :-treatment with caustic soda solution, pressing, milling, the addition of a restricted quantity of diethyl sulphate with continued milling or mixing, storage for 3-5 days preferably in an inert atmosphere such as nitrogen, washing, and finally drying until the moisture content is not more than 3 per cent. Acetylation is effected: by employing, with every 100 parts of the cellulose ether, 200 or 225 parts of acetic anhydride, 500 parts of acetic acid, and 2 or 2.5 parts of sulphuric acid, the acetate being precipitated at once by the addition of water, or being treated before its precipitation in order to vary its solubility. Specification 241,679 is referred to.
Patent GB-289619-A (GB)
Title: Improvements in or relating to light-reflecting devices or units
IPC: G09F13/16
Filed: 1927-04-07
Abstract: 289,619. Murray, R. H. April 7, 1927. Reflectors.-Light reflecting devices or units 7<a> are provided with abutments 9 to enable them to be readily positioned in apertures 10<a> in the frame or holder of an indicator or advertising sign. The abutment is formed by a flange 9 on the base 7, which acts as a protector to the reflector. Rubber washers 11 render the joints watertight; and similar washers 13 act as packing between the base and base plate 12 of the device. Specifications 194,034 and 256,475 are referred to.
Patent GB-705885-A (GB)
Title: Improvements in or relating to delay lines suitable for use in travelling wave discharge tube arrangements
IPC: H01J23/28
Filed: 1952-04-16
Abstract: 705,885. High-frequency transmission lines. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 16, 1952 [April 23, 1951], No. 9585/52. Class 40 (8) A high frequency transmission line consists of two combs 3 and 4 with interleaved teeth 5 and 6 carried on a common plate 7, which is spaced from the teeth by a distance which is very short compared with the operating wave length. In the arrangement shown the teeth 6 are broken away for the sake of clarity. The teeth may be tapered as shown touching the plate 7 at their bases or they may be of uniform cross section, their spacing from the plate not exceeding 0.5 per cent of the wave length. In a further construction, the teeth can be of uniform cross section for part of their length and tapered for the remainder. The line is intended for use as a delay line in a travelling wave tube. Specification 699,893, [Group XL (a)], is referred to.
Patent GB-269187-A (GB)
Title: Improvements in or relating to automatic boiler control apparatus
IPC: F22B35/00
Filed: 1927-04-07
Abstract: 269,187. British Thomson-Houston Co., Ltd., (Assignees of Thompson, L. W.). April 10, 1926, [Convention date]. Air supply, regulating; stoking. - To regulate automatically the air and fuel supply of a steam boiler in accordance with the boiler steam pressure, the boiler head 40 communicates with a pressure gauge 39, 36 which by varying the height of mercury in a vessel 38, varies impedance in an electric circuit 23. The circuit 23 supplies one field component of a split-field alternating-current electric motor 20, the other component, normally balancing the first, being adjusted to the required strength by a resistance 26. As the boiler pressure changes, the motor 20 drives a rheostat 10 to increase or decrease the excitation and thus the speed of two directcurrent electric motors 7, 9, of which one works a mechanical stoker and the other an air blower.
Patent GB-250621-A (GB)
Title: Improvements in or relating to foundry flasks
IPC: B22C21/10
Filed: 1926-04-12
Abstract: 250,621. Hines, J. F. April 10. 1925, [Convention date]. Guiding flasks.-The cope and drag members are aligned by a pair of dowels 17 on each side secured to brackets cast on the drag. The cope has open brackets to which a.re bolted lugs 19 that embrace about half the circumference of the pins. The lugs are preferably formed by making an integral member 21. Fig. 5, and dividing it. Pattern plates for use with the flasks may be similarly fitted.
Patent GB-1133899-A (GB)
Title: Process and device for mercerising cotton yarn
IPC: D06B7/04
Filed: 1967-03-01
Abstract: 1,133,899. Mercerising cotton yarn; textile treating apparatus. VEPA A.G. 1 March, 1967 [1 April, 1966], No. 9682/67. Headings D1L and DIP. Cotton yarn is mercerised by continuously moving a continuous hank of the yarn through a series of locations in which it is first contacted with hot and/or cold water impregnated under tension with caustic soda at a temperature below 20‹C and then washed, steamed, neutralised and dried, the hank being squeezed at least after each wet-treatment. The yarn may be rinsed after steaming and may be finished with oily or oil containing agents prior to drying. Before finishing and/or drying the yarn may be bleached, e.g. with hydrogen peroxide, steamed and rinsed. In Fig. 1 several hanks of yarn 1 are wetted and washed in two sieve drum baths 2 each comprising a trough 3 which is filled with liquor, a sieve drum 4 subjected to suction by means of pump 7, guide roller 5 and squeeze rollers 6, optionally fitted with a heating unit, the liquid being discharged through duct 8 and returned into the bath. The yarns are then impregnated with caustic soda in bath 9 which is generally provided with a cooling device so that the caustic soda is kept at a temperature below 20‹C and in which is arranged a lower row of rollers 10 for guiding the yarn and above which is a row of rollers 10' each correlated with a squeeze roller 11, and are reimpregnated in a further bath 12. The yarns are then washed in sieve drum wash baths 13 and 14, steamed in steamer 15 comprising sieve drums 16 subjected to suction, rinsed, acidified and/or neutralised and finished in sieve drum baths 17, 18 and 19 and dried on sieve drum dryer 20 comprising sieve drums 21 subjected to suction. The sieve drum bath 13 may be replaced by a washing bath of a similar design to baths 9 and 12 and the steamer 15 may be replaced by a J-box in which the hanks of yarn are arranged in folds in the steam atmosphere. If the yarn is also to be bleached at least one bath with bleaching liquor and a sieve drum subjected to suction, a steaming chamber which may be a J-box, and at least one wash bath with a sieve drum subjected to suction may be provided in front of the finishing bath or dryer. To prevent tension on the yarn during drying the dryer intake may be sealed by means of a pair of rollers made of soft rubber driven at a higher speed than the subsequent sieve drum, one intake roller preferably the upper roller, being forced hydraulically against the other one. To eliminate the necessity of synchronizing the speeds of the individual units according to the respective material shrinkage values a material store may be provided at least behind one individual unit or compensating rollers may be provided.
Patent GB-776803-A (GB)
Title: Liquid phase oxidation of cyclohexane
Filed: 1955-04-04
Abstract: Partial oxidation products of cyclohexane, suitable for further oxidation to adipic acid, and including cyclohexanol and cyclohexanone, are prepared by reacting cyclohexane in the liquid phase with gaseous oxygen at a temperature of 75 DEG  to 200 DEG  C. under a pressure of 50 to 500 pounds per square inch in the presence of a hydrocarbon-soluble cobalt compound as catalyst, at least part of the oxidation mixture being extracted with water prior to completing the oxidation, continuing the oxidation while separating water from the oxidation mixture substantially as rapidly as it is formed by the oxidation reaction, until the overall percentage of cyclohexane which has become oxidized is from 3 per cent to 30 per cent, admixing water with the resulting oxidation mixture and separating cyclohexane therefrom.  The water formed in the reaction may be removed by azeotropic distillation. The oxidation may be conducted in successive stages with water extraction of the oxidation mixture between stages or alternatively the oxidation may be carried out in a single oxidizer with the extraction being performed on a side stream which is returned to the oxidizer.  The final product is treated for recovery of unused cyclohexane by direct fractionation or, if a petroleum cyclohexane containing benzene is oxidized, steam distillation may be used.  The working-up method described in Specification 767,348 is preferred.  In a Figure (not shown), an apparatus is described wherein cyclohexane is oxidized in three stages with two intermediate water extractions, water being continuously removed from the oxidation stages by azeotropic distillation.  The effluent from the third stage is united with the water used in the extractions and obtained from the oxidation and is then either (a) passed to a still for the recovery of cyclohexane, or (b) the aqueous phase is separated from the hydrocarbon phase, distilled to give a steam-distillable oil which is united with the hydrocarbon phase, the whole being distilled for recovery of cyclohexane, the residue being a mixture of products suitable for nitric acid oxidation to adipic acid.  In an example, cyclohexane is oxidized in three stages with intervening water extractions and the result in terms of conversion of cyclohexane and yields of cyclohexanone, cyclohexanol, peroxides (calculated as cyclohexyl hydroperoxide) and adipic acid, is tabulated and compared with similar oxidations wherein water extraction is omitted. Specification 633,354 also is referred to.