baber/WOPTO huggingface dataset:
Patent GB-1269455-A (GB)
Title: Improvements in or relating to ferrite-core data stores and their manufacture
IPC: G11C5/04
Filed: 1970-05-20
Abstract: 1,269,455. Magnetic storage apparatus. SIEMENS A.G. 20 May, 1970 [21 May, 1969], No. 24373/70. Heading H3B. A ferrite core data store comprises a stack of flat base-plate assemblies stuck together with an adhesive 4 each base-plate assembly including a flat base-plate 2 having a plurality of ring storage cores 3 stuck on edge with an adhesive thereto. The storage cores 3 are arranged on edge matrix fashion in a jig and an adhesive 4 coated base-plate 2 of insulating material or metal is brought into contact with the cores and the adhesive is hardened. After threading the cores the assembly is tested, and the testing drive x and/or y wires removed. After testing of the individual base-plates 2 they are coated on their opposite faces to the cores 3 with adhesive 4 and stacked as shown. The final x and/ or y drive wires 5, 6 are then threaded through all the cores of the levels and soldered to connectors 7 on base-plate 1. The stack may finally be potted. In an alternative arrangement after threading the cores with the x and y drive wires the assembly is folded to form a stack of matrix planes which are stuck together by adhesive.
Patent GB-501609-A (GB)
Title: Improvements in and relating to plug sockets for electric connectors and switches
IPC: H01R13/453
Filed: 1937-09-08
Abstract: 501,609. Two-part couplings. WATSON, A. Sept. 8, 1937, No. 24455. [Class 38 (i)] The live sockets of a wall fitting are covered by a shutter pivoted between them and opened by engagement of the contact pins with oblique surfaces thereon, the pivot allowing also of pivotal movement so that if one plug only is inserted the shutter is rocked and coacts with a locking device. The shutter C has a conical hole for the pivot F and projections D on its under surface to enter, the socket E and lock the shutter if one pin B only is inserted. The spring I restores the shutter to its closed position. In a modification the shutter is raised by the spring to lock it by engagement with a T-head on the pivot F so that it must be depressed symmetrically before it can be turned. In other modifications the shutter may be mounted on a rounded boss, in which case the spring itself may form the pivots or it may be made in two parts one pivoted and the other rocking thereon.
Patent GB-414227-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/28
Filed: 1933-09-04
Abstract: 414,227. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Herold, E. W. ; 165, Franklin Street, Bloomfield, New Jersey, U.S.A.) Sept. 4, 1933, No. 24489. Convention date, Sept. 9, 1932. [Class 39 (i).] A valve has a cathode, a control grid, a screen grid, and an anode consisting of a plate and a thin metal strip wound to and fro across the plate with the edge fastened to the strip, the arrangement being such that the strip prevents the emission of secondary electrons produced by impact or primary electrons. As shown in Fig. 3, the strip is bent in zig-zag shape and the end is turned around and secured to the short sections 5. The sections 3 are of length equal to the plate. Two such structures are fastened to the opposing faces of trough-shaped plate members 1, Fig. 4, which enclose a screen grid 19, a control grid 15 and a cathode 13. The control grid is wound around rods 18 of heavy copper carrying a circular sleeve 17 acting as a heat radiator. The strips may be parallel with the grid wires or at right angles to them. Two insulating spacers 20, 21 are secured to the anode by metal bands 22. The anode may be carbonized or otherwise blackened to prevent secondary emission.
Patent GB-1352221-A (GB)
Title: Web handling apparatus
IPC: G03B1/54
Filed: 1971-04-19
Abstract: 1352221 Tensioning webs EASTMAN KODAK CO 19 April 1971 [18 March 1970] 24553/71 Heading B8R [Also in Division G2] In a web handling apparatus, e.g. a cine projector, a tension isolator includes a driven member 11, around which the web passes, driven by a drive member, e.g. a pulley 14. The drive and driven member have a degree of contact determined by the web tension forces T 1 , T 2  and the drive member is driven at such a speed that slippage occurs between the members. As shown the members are pulleys 11, 14 and the area of contact is on the outside of the member 11. Variation in contact between the pulleys 11, 14 is permitted by pivoting arm 12. In other embodiments (not shown) the drive member may contact the inner surface of a hollow driven pulley or the drive member may be a belt wrapped around the driven pulley but axially separated from the web. Such tension isolators may be employed on either side of the picture gate of a projection in a manner similar to that disclosed in Specification 1,341,758.
Patent GB-406712-A (GB)
Title: Improvements in or relating to yarn winding machines
IPC: B65H54/74
Filed: 1932-09-02
Abstract: 406,712. Spindle driving arrangements for yarn-winding machines. WILDT & CO., Ltd., COLEY, J., and LEEDHAM, L. H., Adelaide Works, Leicester. Sept. 2, 1932, No. 24563. [Class 120 (ii).] In a yarn-winding machine having a bobbinspindle driven by a power-shaft through a slipping-clutch and a positive clutch, clutchoperating means acting positively are so arranged that sufficient pressure is first applied to actuate the slipping-clutch and thereafter to engage the positive clutch when starting-up, and to release the positive clutch and thereafter release the actuating pressure from the slipping- clutch when stopping. A power-shaft 1 drives, by friction or otherwise, a disc 3, which is provided with teeth 11, forming with teeth 112 on a cover 12 the positive clutch, and with a boss 5 carrying friction discs 6, 7, 8, forming the slipping-clutch. A cup 9, splined to the cover 12, is pressed by a spring 10 against the friction discs. The cover 12 constitutes the clutchoperating means and is connected through detents 15, 16 to a collar fast on the spindle, and operated by a part 20, actuated by a handle 28 and suitable gearing.
Patent GB-1150328-A (GB)
Title: Improvements in or relating to Hearing Aid Amplifiers.
IPC: H03G3/10
Filed: 1967-05-26
Abstract: 1,150,328. Nonlinear amplifiers. BOMMER A.G. 26 May, 1967 [6 July, 1966], No. 24606/67. Heading C4G. [Also in Division H4] A nonlinear amplifier for hearing aids comprises tandem resistance coupled amplifying transistors T 1 , T 3  with interposed gain control 13 energized from a microphone 1 to drive an output transistor T 3  energizing an electroacoustical transducer 2 in its collector circuit; there being provided a capacitance coupled feedback path from output to input of T 3  comprising antiparallel germanium peaking diodes D 1 , D 2  in series with fixed and preset resistors 20, 21, such that the gain characteristic asymptotically approaches the maximum output level of the transducer. In a modification (Fig. 2, not shown) the feedback circuit is inserted between the output of a further transistor amplifier identical with that driving the transducer, and the common input thereof.
Patent GB-221095-A (GB)
Title: Improvements in or relating to apparatus for screening, sifting or grading materials
IPC: B07B13/05
Filed: 1923-10-03
Abstract: 221,095. Strachen & Henshaw, Ltd., Sargent, T., Gressmith, G. W., and Beasley, H. H. Oct. 3, 1923. Endless moving sieves; fixed sieves.-Apparatus for screening coal, stones, friable material such as coke and the like, comprises an endless conveyer consisting of bars k carried by chains l and arranged either as a sieve or as a device for traversing the material over a fixed sieve or series of sieves 5. 6, in combination with devices for agitating and delaying the material in its passage. The retarding and agitating devices may consist of chains 10, Fig. 2, hanging from the fixed framework, or a number of plates 15, Fig. 5, set at an angle to. the direction of motion of the conveyer, or a number of bars 16 depending from transverse rods 14. In the construction shown, the apparatus consists of a series of graduated sieves 5, 6 formed of longitudinal bars, the upper edges of the bars being enlarged, and the conveyer consists of widely-spaced bars k guided in slots in the sides of the framework f, and driven by sprocket wheels m on a shaft n geared to the main shaft o. The bars k may be disposed obliquely and alternately in opposite directions across the path of movement so as to move the material from side to side of the sieves. The material is fed from a hopper z by a hinged door y opened intermittently by a link wand arm v on an oscillating shaft s driven from the rear shaft n of the conveyer device.
Patent GB-460429-A (GB)
Title: Improvements in machines for securing together sheets of paper and the like by crimping
IPC: B31F5/02
Filed: 1936-09-10
Abstract: 460,429. Uniting sheets of paper &c. by crimping &c. WERTHEIMER, F. K., and FERMA, Ltd. Sept. 10, 1936, No. 24705. [Class 141] [Also in Groups VIII and XV] In a machine for uniting sheets of paper &c. by crimping &c. between superposed wheels or rollers e, f, the rim of one or both of which yields radially, as by rubber collars on bolts &c. bridging cheeks n on the boss, resiliently supporting the rim, the machine is clamped at b to a support, the lower wheel e being rotated, e.g. by a handle i and the upper being under adjustable screw pressure.
Patent GB-223590-A (GB)
Title: Improvements in spray carburetters for internal combustion engines
IPC: F02M17/02
Filed: 1924-10-17
Abstract: 223,590. Nicolardot, A., (Representative of Nicolardot, H.). Oct. 19, 1923, [Convention date].. Spray carburettors.-The fuel supply from the inlet 3 to the nozzle 6 is controlled by a ball or other valve 5 which is actuated by suction transmitted from the interior 11 of the nozzle through a branch conduit 10 opening into the valve chamber 12. The valve may close by its own weight, or mav be loaded by a spring 14 attached to a rod 16 sliding freely in an adjustable sleeve 18, a spring 20, stronger than the spring 14, being positioned between the base of the sleeve 18 and the head 15 of the rod 16. The fuel nozzle 6 is provided with a calibrated inlet orifice 7, and with two outlet orifices, one 8 for slow-running situated on the axis of an iris throttle valve 2, and the other 9 situated out of the centre; when the throttle is fully open both orifices 8, 9 discharge fuel, but when the throttle is nearly closed fuel is supplied by the orifice 8 only, this fuel being emulsified by air drawn in through the orifice 9. The throttle 2 is operated by an arm 23 loaded by a spring 25. Specifications 15524/15 and 157,779 are referred to.
Patent GB-235073-A (GB)
Title: Switch arrangement for electric flat irons
IPC: D06F79/02
Filed: 1924-10-18
Abstract: 235,073. Berchtold, E. Oct. 18, 1924. Electric hand-irons; hand-irons, heating by electricity before use.-A switch in the handle of an iron may be closed by gripping the handle or by placing the iron on a stand and when on the stand is automatically opened should the temperature become too high. The switch comprises a contact 9 adapted to engage contacts 10 when a lever 4 is pressed down against the action of a spring 8. When the iron is placed on a stand 13 a projecting rod 15 on the stand engages a sliding member 17 connected to the lever 4 and closes the switch. The rod 15 is connected to a lever 36, 37 which is normally prevented from turning by a supporting member which for example may be an adjustable screw 34 on a lever 31 pivoted at 30, Figs. 1 and 2, the other arm 29 of the lever 31 engaging the last of a series of expandable rods 23<a> .. 23<d> connected by levers 28 so that their expansions are added together. As the temperature rises, the rods 23<a> . .23<d> expand and rotate the lever 29, 31 so that eventually the stop 34 is withdrawn from the lever 36, 37, and, the rod 15 being no longer supported, the spring 8 opens the switch. If the iron is taken from the stand, a weak spring 16 raises the rod 15 into its original position, where it will be again supported when the temperature falls. In a modification, Fig. 3, the lever 36, 37 is held against rotation by a piece of fusible material 41 which is adapted to engage the bottom of the iron.
Patent GB-666103-A (GB)
Title: Improvements in and relating to automatic frequency control circuits
IPC: H03L7/06
Filed: 1949-09-27
Abstract: 666,103. Automatic frequency control systems. CALVERT, R., and WAYNE KERR LABORATORIES, Ltd. Dec. 27, 1950 [Sept. 27, 1949], No. 24801/49. Class 38 (iv). An oscillation generator 24, Fig. 2, is synchronized with a reference signal by mixing them at 21 to produce a first beat signal, by mixing them at 23 after a phase displacement of one of them at 22 to produce a second beat signal, the generator 24 being frequency-controlled in response to the sense of the phasedifference between the two beat signals. The reference signal frequency is a sub-multiple of the desired oscillator frequency and is converted into short pulses at 20, these pulses being delayed at 22 for a period of about a quarter cycle of the oscillator 24. The two beat signals are amplified at 25, 26 to produce output pulses during a portion of the beat cycle, these pulses operating a relay device 27 for controlling a motor 28 by which the frequency of the oscillator 24 is adjusted in a corrective sense. The pulse outputs from the amplifiers 25, 26 are fed to relays 30, 31, Fig. 3. If the pulse from amplifier 25 recurs first, relay 30 closes its contact 32 to energize a relay 34 which throws its contact to a position in which the following pulse from amplifier 26 by closing its contact 33 makes a circuit from battery 40 through stepping-magnet 39 to earth. If the pulse from amplifier 26 occurs first, the reverse stepping- magnet 38 is operated so that in either case the tuning of the oscillator is stepped towards synchronism. In a modified frequency -correct - ing system, the phase-displaced beats are fed through amplifiers to the two field coils of a reversible two-phase motor. The phase-shift or delay network 22 may be placed in the lead from the oscillator 24 to one of the mixers 21, 23, Fig. 4 (not shown).
Patent GB-620505-A (GB)
Title: An improved alkylation process
IPC: C10G29/20
Filed: 1946-08-20
Abstract: Aviation safety fuels are prepared by alkylating normally gaseous isoparaffins and olefines at -20 DEG  to +20 DEG  F., preferably about 0 DEG  F., in the presence of a mixture of 96-98 per cent sulphuric acid and a minor proportion of a diluent comprising an alkyl sulphate or a compound forming the same with the acid without weakening the acid by formation of water or mixtures thereof. Suitable diluents are ethylene, ethyl sulphate, and dimethyl ether. The alkyl group should contain fewer carbon atoms than the hydrocarbon reactants.  Thus, methyl, ethyl or propyl sulphate is suitable with C4 reactants.  Preferably 0.1-0.5 mol. of diluent per mol. of acid is used to maintain the titratable acidity of the solution above 70 per cent while preventing freezing at the low reaction temperatures.  Fuels containing above 15 volume per cent of isobutene based on total olefine give good yields of safety fuel alkylates of B.R. 300-420 DEG  F., and O.N. above 88.
Patent GB-386919-A (GB)
Title: Improvements in filaments and electrodes for electric lamps and discharge devices
IPC: H01J1/14
Filed: 1932-09-06
Abstract: 386,919. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London. - (Assignees of Patent-Treuhand Ges. f³r Elektrische Gliihlampen; 11, Ehrenbergstrasse, Berlin.) Sept. 6, 1932, No. 24844. Convention date, Oct. 31, 1931. [Class 39 (i).] Incandescent bodies for use in electric lamps or electric discharge devices consist of a core of either silicon carbide or silicon boride coated with a layer of the oxide of a refractory metal such as thorium, zirconium, or titanium, or mixtures of these. In addition a coating of electron-emitting substances, such as alkalineearth metals or their compounds, may be applied to the oxide layer. In one method of making the incandescent body a stream of gas containing oxygen, together with the vapours of halogen compounds of the metal constituents of the oxide coating to be manufactured are employed. For example, cores of silicon carbide or silicon boride are heated in equal parts of air and the tetrachloride of thorium, zirconium, or titanium, whereupon the halogen compounds together with the oxygen are changed into an oxide which is deposited on the heated cores, the requisite temperature being about 1400‹ C.
Patent GB-970943-A (GB)
Title: Manufacture of ammonium chloride
Inventor: MCLACHLAN PETER MCALPINE
IPC: C01D7/18
Filed: 1961-07-10
Abstract: Ammonium chloride is made from tower liquors of an ammonia-soda process by passing dry gaseous ammonia and carbon dioxide into said liquors in such amounts that at 35-40 DEG  C. the ammonia concentration does not exceed 4.5% by weight and the carbon dioxide concentration does not exceed 5.4% by weight, saturating the resulting liquors with sodium chloride at 35-40 DEG  C., cooling to - 11 DEG  C., and separating crystallized ammonium chloride. The tower liquors, i.e. those remaining after sodium bicarbonate removal, are a solution of ammonium chloride and sodium chloride saturated with sodium bicarbonate, and containing small amounts of ammonium carbonate/bicarbonate complexes.  An increase in yield of ammonium chloride from 15 to 20% is achieved over a process in which tower liquors are treated using 25% by weight aqueous ammonia solution instead of gaseous ammonia and carbon dioxide.
Patent GB-660525-A (GB)
Title: Improvements in rotary-valve, multi-cylinder internal combustion engines
IPC: F01L7/02
Filed: 1949-09-29
Abstract: 660,525. Valves. SUDWERKE GES. Sept. 29, 1949 [Oct. 1, 1948], No. 25048/49. Classes 7(ii) and 7(vi)  In, an air-cooled multicylinder engine, each cylinder is provided with a separate rotary valve housing 5, the valves 6 therein being connected together by short splined driving shafts 7, and longitudinal cooling ribs 20 on the cylinder barrels direct a cooling air stream through the spaces 21 between the valve housings. Each valve is provided with ports 10, 12 controlling the supply of combustible moisture or air from an intake port 11 through the hollow interior of the valve to the combustion chamber 13, and a tube 14 through which the exhaust gases pass to the exhaust port 15. The tube 14 is formed of a material, such as steel, of high thermal conductivity and is cooled by the.incoming mixture or air.
Patent GB-885720-A (GB)
Title: Cross-linked aromatic vinyl co-polymers
IPC: B01J41/14
Filed: 1958-03-06
Abstract: 885,720. Aromatic vinyl copolymers of spongy structure. FARBENFABRIKEN BAYER A.G. March 6, 1958 [March 9, 1957], No. 25143/61. Divided out of 885,719. Class 87(2). [Also in Group IV(a)] A cross-linked aromatic vinyl copolymer of spongy structure suitable for use as an intermediate in the production of ion-exchange resins is produced by copolymerising in the liquid phase a monovinyl aromatic compound and a polyethylenically unsaturated compound in the presence of at least 20%, based on the combined weight of the monomers, of an inert organic solvent for the monomers which does not dissolve aromatic vinyl polymers. The copolymer may be prepared from styrene, α-methyl styrene, vinyl toluene, vinyl anisole or vinyl naphthalene or mixtures thereof and as crosslinking agent divinyl benzene, brivinyl benzene, ethylene glycol diacrylate or dimethacrylate, diallyl maleate, divinyl ether, divinyl ketone or esters of maleic or fumaric acids and dihydric alcohols such as ethylene glycol dimaleate. Particularly suitable organic solvents are benzine, white spirit, dodecane, cyclohexanol, methanol, amyl alcohol, dodecanol, olein alcohol, nitromethane, nitropropane, nitrohexane, diethyl ether, dibutyl ether and diamyl ether. For the production of bead-shaped polymers, the solutions of the monomers are suspended in an aqueous medium and then polymerised. Catalysts may be used and disclosed are benzoyl peroxide, cumene hydroperoxide, t-butyl peroxide, sodium persulphate, azodiisobutyric acid dinitrile and unspecified Redox systems. In the examples, the aqueous polymerisation media contain methyl cellulose or gelatin, and further organic liquid is added during polymerisation Specifications 654,706, 679,852, 697,851, 700,470, and 779,994 also are referred to.
Patent GB-501258-A (GB)
Title: Coil-protecting system for indicating leakages between windings or to earth
IPC: H02H3/16
Filed: 1938-08-26
Abstract: 501,258. Indicating faults ; protective cut-out systems. MASCHINENFABRIK OERLIKON. Aug. 26, 1938, No. 25167. Convention date, Sept. 16, 1937. [Class 37] [Also in Group XXXVII] An arrangement for indicating leakage faults between generator windings, and leakage to earth; wherein an auxiliary choke-coil is connected in parallel with the generator terminals, comprises the series connection of the generator and choke-coil neutral points through two transformer coils having their centre point earthed, the resistance to one fault current being larger than that of the other so that both types of fault are indicated by means of a single choke-coil. A three phase choke 2 in parallel with the generator windings I have their neutral points connected through transformer coils 3 ... 5, the midpoint of coils 4, 5 being earthed. For the same current, coils 4, 5 are connected so that no magnetization of the transformer occurs, and a winding leakage causes the small current ia to operate relay 7 through current transformer 6. An earth leakage R sets up a current in coil 4 and a smaller current io in coil 5, the increase in current im thereupon operating relay 8. A winding leakage thus operates relay 7 only, while an earth leakage operates both relays 7 and 8. The chokecoil 2 may be provided with a delta-connected secondary from which the auxiliary voltage Eo can be taken for indicating earth leakage at the neutral point. If such indication is not desired, the coil 3 can be dispensed with but in this case no discrimination between earth leakages and winding leakages is possible.