baber/WOPTO huggingface dataset:
Patent GB-1243271-A (GB)
Title: Picture display device
IPC: H04N3/24
Filed: 1969-07-10
Abstract: 1,243,271. Cathode - ray tube circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 July, 1969 [13 July, 1968], No. 34757/69. Heading H4T. A beam concentrating electrode 5 (e.g. a convergence or focusing electrode) is connected to a potential divider including a valve 11 and cathode resistor 13 connected across the EHT supply source, the grid of the valve being biased by the potential drop across the resistor. With this arrangement the ratio between the voltage at the electrode 5 and that at the EHT terminal substantially equal to 1/Á+1 (where Á is the   amplification factor of the valve) which is independent of the value R k  of resistor 13 so that variation in the voltage at electrode 5 due to temperature effects in the resistor are eliminated Additionally, the resistance between the anode and the cathode of the valve is substantially-equal to R t /Á+1 (where R i  is the internal   resistance of the valve), which is very small in comparison with the resistor value required, i.e. ÁR k , in the absence of the valve, so that the voltage at electrode 5 is substantially independent of variations in the current drawn by this electrode. When electrode 5 is a focusing electrode point 15 may be connected directly to the EHT zero potential line; when electrode 5 is a convergence electrode (e.g. in a tri-gun colour display tube) point 15 is returned to the zero line via a second valve 17 to the grid of which a convergence correction waveform is supplied, the peaks of the waveform being at substantially cathode potential (i.e. EHT zero) due to the charging of capacitor 23 by grid current flow. With this arrangement a portion Á/Á+1 of the input convergence correction   waveform. (Á= amplification factor of valve 17) and which is independent of the value R k  is effective at electrode 5. When a focusing electrode is present in addition to the convergence electrode 5 (e.g. in a three-beam colour television display tube) it may be connected to a tapping on a potential divider connected between the cathode of valve 11 and the grid of valve 17, the tapping being adjusted to a position at which the A.C. (convergence correction waveform) voltage is substantially zero and the magnitude of the D.C. voltage of which may be adjusted by adjustment of resistor 21. In order to accommodate different display tubes the ratio of the voltage at point 15 (substantially zero) to that at the EHT electrode is made adjustable by provided a bias at the anode of valve 17, e.g. by clamping the A.C. voltage at the grid at different levels or by adjustment of anode resistor 19. The voltage at electrode 5 may be adjusted by connecting the control grid of valve 11 to a variable tapping on register 13 or by adjustment of the anode voltage 17, e.g. by adjustment of resistors 19 or 21. The triode 11 may be replaced by a multi-grid valve and if desired, all valves may be replaced by transistors.
Patent GB-391721-A (GB)
Title: Improvements in or relating to matrix-setting and type-line-casting machines
IPC: F16T1/26
Filed: 1932-12-08
Abstract: 391,721. Type-bar-making machines. TYPOGRAPH GES., 17, Huttenstrasse, Berlin. Dec. 8, 1932, No. 34838. Convention date, Jan. 27, 1932. [Class 100 (iii).] Assembling matrices.-In machines having circulating matrices, which are guided on wires, and, when released from the magazine, slide down inclined portions of the wires on to horizontal assembly portions, a feed device is provided for engaging each matrix at two points as far apart as possible, in order to forward it on to the horizontal portions of the wires. The feed device comprises two vertical rotating shafts 4, 5, Fig. 2, each carrying radial ledges 6 of vulcanized fibre &c., which are adapted to engage the upper parts of the matrices on opposite sides. The shaft 4 is extended downwards, and carries a star-wheel 11, which engages the matrices adjacent to their charactercavities. The matrices run at their lower ends on a rail 19, and are guided by lateral rails 20. The shafts 4, 5 can be disconnected from their driving mechanism by means of a hand-operated clutch.
Patent GB-818775-A (GB)
Title: Improvements in or relating to coupling electrical elements
IPC: H01G4/35
Filed: 1955-12-06
Abstract: 818,775. Interference filters. SIEMENS & HALSKE A.G. Dec. 6, 1955 [Dec. 15, 1954], No. 34950/55. Addition to 809,126. Class 40 (8). In order to prevent changes of series impedance with current at low frequencies in the feedthrough device of the parent Specification, the magnetic body p surrounding the feedthrough conductor d is provided with a gap r which may be filled with a dielectric substance. The gap extends for the full length of the magnetic body which is shown in cross-section. The gap reduces the effective permeability of the body at low frequencies but does not affect its high-frequency permeability. The invention is applicable to both the constructions described in the parent Specification.
Patent GB-400011-A (GB)
Title: Improvements in or relating to electric heating and cooking apparatus
IPC: F24C7/00
Filed: 1932-12-09
Abstract: 400,011. Steam cooking-apparatus. HOLLASCH, G., 19, K÷lnerstrasse, L³denscheid, Westphalia, Germany. Dec. 9, 1932, No. 35005. Convention date, Dec. 9, 1931. [Class 28 (i).] In apparatus comprising a cooking- vessel d surrounded by the steam space c of a water chamber a fitted with electrodes b and connected to an expansion chamber f, the expansion chamber is fitted with an adjustable pressureregulating valve k. In a modification the chamber f is a coil surrounding the space c. A safety valve o, a manometer n, a filling funnel m, and an air escape valve p are fitted to a pipe l opening into the steam chamber. The Specification as open to inspection under Sect. 91 describes modifications wherein the chamber f is a riser pipe terminating in a filling funnel. In one arrangement the steam space of the electrode boiler is connected by pipes to the jackets of a plurality of cooking vessels separate from one another and from the boiler. This subject-matter does not appear in the Specification as accepted.
Patent GB-1246666-A (GB)
Title: Control of reducing mills
Inventor: LARKINSON ROGER BRIAN
IPC: B21B37/16
Filed: 1968-07-23
Abstract: 1,246,666. Automatic size control. ENGLISH ELECTRIC CO., Ltd. July 22, 1969 [July 23, 1968], No.35013/68. Heading G3R. To produce rolled or drawn material of constant thickness, a signal dependent on the difference between the force exerted by rolls or dies and the force exerted when the material first entered them and a signal dependent on change in the spacing of the rolls or dies during working are combined in suitable proportions to control the spacing. In Fig. 1, as the leading edge of material 14 to be rolled enters each roll stand 10-13 signals from corresponding load cells 27 are applied to a switch 33 which is in the opposite position to that shown so that a signal corresponding to the initial total roll force is stored in a memory 31. As the material passes on switch 33 is returned to the position shown so that the current roll force is compared with the initial roll force at 30. Any difference is applied to a mixer 26 the output of which controls electric screwdown motors 21. Signal generators 22 apply pulses, corresponding in number to the extent of screwdown adjustment from an initial position, to a digital-analogue converter 25 the output of which is applied to mixer 26 which so proportions the signals applied to it that the thickness of material issuing from the stand is maintained constant. A signal from an X-ray gauge 35, corresponding to the final thickness of the rolled material, is compared at 34 with a desired thickness signal 36 so that any difference is integrated and serves to correct the error by automatically adjusting the screwdown positions to extents proportional to the settings of potentiometers 39. For setting the roll gaps before rolling commences, further inputs (not shown) are applied to mixers 26 to operate motors 21. X-ray gauges between stands may apply further correction signals. Application to drawing material through dies is referred to.
Patent GB-841883-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J21/02
Filed: 1956-11-19
Abstract: 841,883. Thermionic valves. GENERAL ELECTRIC CO. Nov. 19, 1956 [Nov. 21, 1955], No. 35292/56. Class 39(1). A discharge tube comprises a tubular anode 3 into which extend a pair of support rods 10, 11 of unequal lengths, between the ends of which is secured the cathode filament 15; attached to the shorter rod 11 is a rod 16, disposed on the opposite side of the cathode from rod 10. Rod 16 acts as a shield between anode and cathode, to prevent the latter from being bowed outwards by the electrostatic field. The device shown is a diode rectifier intended for high-voltage work.
Patent GB-1492194-A (GB)
Title: Coating surfaces with epoxide resins
IPC: C08G59/68
Filed: 1975-08-27
Abstract: 1492194 Epoxy resin coatings CIBA-GEIGY AG 27 Aug 1975 [28 Aug 1974] 35412/75 Heading C3B Epoxy resin coatings are obtained by applying to a surface and subsequently curing a mixture of a liquid component (A) comprising at least one epoxy resin with a liquid component (B) containing a curing agent which comprises (by wt.) 1À7-15À5% Zn(BF 4 ) 2 , 7À0-65À0% of a cyclic(thio)ether wherein R 1  to R 7  denote H or monovalent organic radicals, R 8  is a monovalent organic radical and Z is O or S, or a cyclic thio(ether) which contains per molecule at least two monovalent radicals in which R 1  to R 7  are H or monovalent organic radicals and Z is O or S; 10-90% of an acid ester of phosphoric or pyrophosphoric acid or of a phosphonic acid ester which contains at least one cyclic phosphonate group with 5 or 6 ring atoms; and 1À0-9À0% of water. (A) and (B) are mixed in a proportion to provide 0À5-2À5 parts by wt. per 100 parts by wt. epoxy resin(s). The epoxy resin may comprise or consist of cycloaliphatic diepoxide, e.g. a diglycidyl ether of a hydrogenated bis-phenol. Preferred curing agents contain (by wt.) 8À5-13À5% Zn(BF 4 ) 2 , 36À0-58À0% tetrahydrofurfuryl alcohol, 20-50% of a mixture of mono- and di-n-butyl phosphate and/or of a mixture of mono- and di-methyl pyrophosphate and 2À0-5À5% water.
Patent GB-176898-A (GB)
Title: Improvements in and relating to thermionic valves for wireless telegraphy and telephony
IPC: H01J1/18
Filed: 1920-12-16
Abstract: 176,898. Preston, L. G., Hodgson, B., and Goldup, T. E. Dec. 16, 1920. Vacuum tubes.-A structure for supporting a grid and cathode filament, so that they can be relatively adjusted before mounting in a bulb, comprises insulating pieces with. corrugations. In one construction, supports S, Fig. 1, for a grid G are secured by means of the corrugations to the insulating pieces A, B which support the ends of the filament F and a spring engaging its apex. In an alternative construction, the grid supports S, Fig. 4, are lashed or otherwise attached to an insulating piece CD of the form shown, having secured within it a tube or guide traversed by the tensioning device RH. Fig. 4 also shows an alternative arrangement for the other end of the supporting structure, in which the filament conductors are lashed on opposite sides and in different corrugations of the insulating tube T, and insulated from the lashing where necessary. Attached to the insulating tube T is an insulating piece R with corrugations for securing the grid supports. The structure may be supported from the insulating pieces or the grid or filament supports. In the arrangement shown in Fig. 4, the tube T is fused to the envelope and the other end is held by springing the grid supports into a tubular extension of the envelope. By cutting a flange M of the envelope, access may be had to the grid and filament. The anode P may be supported by spring arms.
Patent GB-411870-A (GB)
Title: Improvements relating to coke ovens
IPC: C10B21/10
Filed: 1932-12-14
Abstract: 411,870. Coke ovens. DIDIER-KOGAG KOKSOFENBAU UND GASVERWERTUNG AKT.-GES., (formerly KOKSOFEN UND GASVERWERTUNG AKT.-GES.), 1, Am Handelshof, Essen, Germany. Dec. 14, 1932, No. 35473. Convention date, Dec. 15, 1931. Addition to 266,996, [Class 51 (ii)]. [Class 51 (ii).] In an horizontal coke oven having beneath each oven a pair of end to end regenerators 4 each with an horizontal partition 2 so arranged that air is delivered to the sole flues 5 at their outer ends, the end flues 3 or end pairs of flues, of each heating-wall have gas and air supply arrangements independent of those of the remaining flues 3, the air being drawn direct from the atmosphere, e.g. through the dampered duct 14. The air passing through the duct is preheated by conduction from the regenerator. A modification is described (Fig. 5, not shown) in which the duct 14 is in the form of a small regenerator in the outer end wall of the main regenerator.
Patent GB-1484213-A (GB)
Title: Contact apparatus for a high voltage isolator or disconnector
IPC: H01H31/02
Filed: 1975-08-28
Abstract: 1484213 Contact arrangements for isolating switches BROWN BOVERI & CIE AG 28 Aug 1975 [28 Aug 1974] 35548/75 Heading H1N Contacts for an isolator comprise two members 4, 5 movable toward each other to insert a cruciform member 8 on the end of the member 4 between coated spring steel fingers 1 which are mounted on the member 5 so that their free ends incline slightly toward each other. The cruciform member engages each rod 1 at two places and the ends of the rods are bent outward at 6 to guide the member 8. Each steel rod 1 has an outer copper conductive coating. The members 4, 5 may be mounted on insulators and form parts of a rotary disconnecting isolator.
Patent GB-1532609-A (GB)
Title: Data processing apparatus
IPC: G06F12/06
Filed: 1977-08-24
Abstract: 1532609 Data processing INTERNATIONAL BUSINESS MACHINES CORP 24 Aug 1977 [4 Oct 1976] 35559/77 Heading G4A Addresses are supplied by a processing unit to address decoders 250-253, Fig. 7, which address a memory address space divided into zones 0-3, Fig. 8; address decoders 250, 251, 252 decode only certain of the address bits so that they simultaneously access all four zones 0-3, address decoders 250, 251, 252 respectively accessing diagnostic space, input/output registers, and nonvolatile storage which are repeated in all four zones 0-3; address decoder 253 decodes all the address bits and addresses work registers which are distributed between the zones 0-3 and also a read-only store containing microstructions. References to the diagnostic space, input/output registers and nonvolatile storage may thus be made in the same zone as the currently used work register. There may be additional work registers in a non-zoned part of memory address space.  This arrangement may control a xerographic copier and may be connected via a multiprocessor connector (65, Fig. 9, not shown) to a text processor (62) controlled by microinstructions in a further read-only store (63). The text processor (62) may also address the diagnostic space, input/output registers and nonvolatile storage of Fig. 8.
Patent GB-1482510-A (GB)
Title: Nuts
IPC: F16B41/00
Filed: 1976-12-23
Abstract: 1482510 Nuts D CHART 23 Dec 1976 35629/76 Heading F2H A nut comprises a castellated cylindrical body 10 including an annular portion 10B of circular cross-section radially inside the castellations 11, and a shroud 12 surrounding the body 10 and rotatable relative thereto, the portion 10B and the shroud 12 both extending axially at least the full extent of, and preferably beyond the tops of the castellations 11. As shown the body has a flange 10A and the shroud 12 is deformed into a circumferential groove in the body to retain the shroud. Alternatively the shroud may have an internal flange or one or more inwardly extending projections engaging the body. The castellations 11 may differ in axial and/or circumferential extent. The nut can be turned with a specially-shaped mating tool, the application of a conventional driving tool to the nut being prevented by the portion 10B and the shroud 12.
Patent GB-1117923-A (GB)
Title: Musical instruments
IPC: G10H1/46
Filed: 1965-08-19
Abstract: 1,117,923. Electrophonic musical instruments. MATTH. HOHNER A.G., and G. JENNY. 19 Aug., 1965 [19 Aug., 1964 (2)], No. 35637/65. Heading G5J. The volume of the output of an electrophonic musical instrument is controlled by a device responsive to the rate of flow of an air stream under the control of the player. As shown, the oscillation generator 83 is keyed by individual keys in a board 10, and its output is passed through a tetrode amplifier 85 to a load-speaker 87. The screen grid potential is supplied by battery 92 and varied by a microphone 93 which is subjected to a stream of air produced by the mouth of the player. The chamber 99 in which the microphone is situated is normally closed by spring-loaded check valves 97 and 98. The tonal characteristics of the instrument are varied by the reactive components in the microphone circuit by altering the microphone chamber size by screw plug 101. In a further arrangement (Fig. 3, not shown), the flow of air positions a shutter between a light source and photo-electric cell to control the output of the instrument. In a still further arrangement (Fig. 2, not shown), the in-and-out movement of an accordion produces the controlling air flowing over a microphone mounted in the end of the instrument.
Patent GB-349477-A (GB)
Title: Improvements in processes of reducing iron ore
IPC: C21B13/08
Filed: 1929-11-21
Abstract: 349,477. Extracting iron. MUSSO, A., 149, Church Street, and DEPPE, W. P., 151, Church Street, New York, U.S.A. Nov. 21, 1929, No. 35679. [Class 72.] In a process for reducing iron ore the ore mixed with carbonaceous material is heated at a temperature not exceeding 950‹ C. in a closed externally heated retort, the gases produced being withdrawn continuously so as to produce a decreased pressure in the retort and to prevent gaseous reduction and secondary gaseous reactions, the metal produced. being treated to separate the gangue therefrom. The coal and ore from supplies 1, 2 pass through bins 3, 4, crushers 5, 6, scales 7, 8 respectively into a mixer 9 and thence into one end of a closed rotary retort 10 which is heated electrically or by burners A .. D. The retort is divided by transverse walls I .. IV into compartments and the gases produced in each compartment are withdrawn separately through a washer 16 by pumps 17 and thence pass through a washer 19, a condenser 20, a bye-products collector 21, a second condenser 22 and a gas tank 23, which is connected to a valve-control and gas distributing room 24. Gas passes by a pipe 26 to one pump 18 of a series and is then conducted to the burners A .. D. A second pump 18 provides the air for the burners and a third pump 18 supplies water to a cooler 11 through which the reduced metal passes from the retort 10. The metal passes through a pulverizer 12 and a separator 13, the pure metal then passing into a bin 14 from whence it may be led to furnaces 34, 35 where it may be melted and converted into carbon or alloy steels. The supply of gas to the burners is controlled so that the temperature in the retort ranges from 250‹ C. at the inlet to about 950‹ C. at the exit and the pumps 17 are operated so as to decrease the pressure in the same direction. A single stage process may be used and a retort which is heated along its length by burners. Specifications 284,040 and 301,011, [both in Class 72, Iron &c.], are referred to.
Patent GB-862008-A (GB)
Title: Improvements in or relating to transistors
IPC: H01L21/00
Filed: 1957-11-15
Abstract: 862,008. Transistors. SIEMENS & HALSKE A.G. Nov. 15, 1957 [Nov. 16, 1956], No. 35689/57. Class 37. In a transistor comprising a base zone of one conductivity type sandwiched between first and second zones of the opposite conductivity type, said first zone is divided by an incision into two part zones, first and second electrodes are in contact with said second zone and one of the two part zones respectively, and a base electrode which passes through the other part zone is in non-rectifying contact with the base zone. The transistor shown in Fig. 3 is made by the following method. Acceptor and donor impurities e.g. aluminium and antimony are diffused together into a monocrystalline wafer of N-type silicon in such a way as to form a pair of closely spaced PN junctions beneath the surface. The wafer is then cut up into a series of slabs as shown in Fig. 1 comprising a P-type layer 2.8 microns thick and an N-type surface layer 1.6 microns thick. Emitter and collector connections 4, 5 of gold antimony alloy are then evaporated on or alloyed to the N-type zones 1 and 3 and a base connection in the form of a rod 6 of aluminium provided which makes ohmic connection to the P-type zone 2 and rectifying connection to the N-type zones 1 and 3 or to zone 1 only. The resistance of the current path through the zone 1 from the emitter connection 4 to the base connection 6 is then increased.by means of a cut 7 which narrows the current path. Preferably the cut extends right through zone 1 and may be made by sawing, by means of a sharply focused electron beam or simply by moistening the surface along the line of the cut with a suitable etchant. Boron, gallium or indium may be used instead of aluminium for the base connection 6 and donor doped germanium, silicon, tin or lead, e.g. an alloy of lead with 5-10% by weight antimony or arsenic used for the emitter and collector connections. The transistor has an improved amplification factor compared with a transistor in which the cut is not provided in which part of the emitter current passes direct to the base connection through the emitter zone.
Patent GB-1008424-A (GB)
Title: Improvements in or relating to cranes
IPC: E04H12/34
Filed: 1962-09-19
Abstract: 1,008,424. Tower cranes. W. BOEZEK, [trading as MARKUS SCHMIDT-TYCHSEN DERRICK-KRANBAU]. Sept. 19, 1962 [Sept. 19, 1961], No. 35735/62. Heading B8B. Additional sections may be added to the tower 5, Fig. 1, of a jib crane by raising a cage 9, which carries a head unit 13 and the jib, by means of racks 11, attached to a member 7, and pinions 12. The pinions are rotated in the direction of the arrows in Fig. 1, thus raising the cage 9 to the position shown in Fig. 2. After locking the cage in this raised position the pinions are rotated in the opposite direction to pull the member 7 and racks 11 into a position similar to that shown in Fig. 1. An additional tower section may now be inserted by conventional methods and subsequent slight lowering of the cage 9 by the racks 11 and member 7 restores the parts to the position shown in Fig. 1, the tower being one section taller. The hoisting motor may drive the pinions 12 or alternatively an auxiliary drive system comprising an electric motor having a belt or chain drive may be releasably attached to the outside of the cage. A rope or chain hoisting gear may be substituted for the racks and pinions. The cage may be used to raise the crane bodily between successive floors of a building.
Patent GB-500670-A (GB)
Title: Improvements in electric time switches
IPC: G04C23/10
Filed: 1937-12-24
Abstract: 500,670. Actuation of switches. STEVENSON, S. H., and HORSTMANN GEAR CO., Ltd. Dec. 24, 1937, No. 35737. [Class 38 (v)] In a time switch of a known type such as is described in Specifications 329,633, 331,083, [both in Class 38 (v)], and 373,554, a bell crank 17 is operated by a push button 18 against a spring 19 to move the spring contact member 5 to close the contacts. This arrangement allows manual operation of the switch for testing without changing the setting of the switch.