baber/WOPTO huggingface dataset:
Patent GB-791032-A (GB)
Title: Improvements relating to electronic circuits
Inventor: STOKES JOHN ARTHUR
IPC: H03C1/54
Filed: 1954-07-20
Abstract: 791,032. Phase-sensitive circuits. BRITISH THOMSON-HOUSTON CO., Ltd. July 19, 1955 [July 20, 1954], No. 21142/54. Class 38(4). A low-frequency balanced modulator is provided with negative feed-back. An A.C. reference is applied in phase opposition from transformer winding T2/S1 to the grids of a double triode V1a, V1b and similarly to the grids of a double triode V2a, V2b. The cathodes of one triode pair are modulated together in one phase sense and the cathodes of the other triode pair are modulated together in opposite phase sense to the first pair by a long-tailed pair V3, V4 acting as a phase-splitter and coupled to the modulation source at DC1, DC2. Opposite anodes of the double triodes V1a, V1b, V2a, V2b are connected in parallel to the primary of a push-pull output transformer T1/P from which the modulated output is. obtained at a secondary T1/S1. The output is also fed back by an auxiliary secondary T1/S2; demodulated by synchronous demodulators RB1, RB2 (to which the original A.C. reference is supplied by windings T2/S2, T2/S3) and the resulting signal after filtering opposes the modulating input. Specifications 725,640, [Group XL. (c)], and 791,031, [Group XXXVIII], are referred to.
Patent GB-258409-A (GB)
Title: Firing device for pulverised fuel furnaces
IPC: F27B3/20
Filed: 1925-08-24
Abstract: 258,409. Witkowitzer Bergbau-und Eisenh³tten - Gewerkschaft, and Salat, C. Aug. 24, 1925. Reverberatory and metal-heating furnaces.-A furnace in which the front part of the hearth m is combined with a superposed combustion chamber c, is provided with a coal dust firing device a, which directs the upper stream of fuel and air to wards an ash or slag pit g, in which the ash &c. is deposited on reversal of the flame to sweep over the material b to be treated. The ash &c. is removed through openings h, and openings l, d permit manipulation of the blocks b to be treated. In the case of a smelting furnace a recess for the molten material is arranged in the hearth m. Manholes f are provided for repair of the walls e of the combustion chamber.
Patent GB-1445055-A (GB)
Title: Electric socket connectors
IPC: H01R29/00
Filed: 1974-05-14
Abstract: 1445055 Two-part couplings GENERAL ELECTRIC CO Ltd 14 March 1975 [14 May 1974] 21255/74 Heading H2E A two pin connector, e.g. of the shaver outlet type, comprises a pair of sockets 2, which contain contact members 7 connected to the secondary winding of a transformer which forms part of the connector. Blanking shutters 24 normally cover the contact members but on insertion of a plug 3, the pins 6 act on the shutter, sliding it against the pressure of a spring 29. This action may also block a second socket, having a different outlet voltage, against connection, by inhibiting the movement of its shutter. Movement of the shutter also effects the making of a switch. In the embodiment shown as the shutter slides, a contact 31 held in place by the spring 29 approaches a pair of contacts 32 in the circuit of the primary winding and effects closure of the circuit, thereby energizing the outlet. The spacing and shape of the sockets 5 may be arranged to accommodate a variety of 2 pin plugs 9, 10, 11 and 12 contact pressure being maintained by the biasing spring 29 acting through the shutter 24. The connector comprises a housing 8 secured to the back of a face plate 4 which may be wall mounted.
Patent GB-860928-A (GB)
Title: Improvements in and relating to indexible tool-holders or work-holders for a machine-tool
Inventor: JUNGELING FRIEDHELM GERRIT
IPC: B23Q16/04
Filed: 1959-06-22
Abstract: 860,928. Machine-tool details. STAATSBEDRIJF ARTILLERIE-INRICHTINGEN. June 22, 1959, No. 21280/59. Class 83 (3). An indexible - tool or work-holder for machinetools comprises an axiallymovable and rotatable locating-bolt 10, Figs. 1 and 6, which is supported in a stationary part of the frame 5 and co-operates with a series of abutment-pins 12 on the indexible part 1, the pins being provided with an abutment-face and also rotatable to a limited extent about their axes. The holder 1 has a shaft 2 rotatable in the housing 5 in bearings 3, 4, and a friction-brake 6, 7, prevents unrequired movement of the shaft 2. A hub 17 with ratchet-teeth 32 forms part of the holder 1, and ring 18 is freely rotatable on the hub. This ring carries a double pawl 25 and a spring- plunger 27 which acts as a tumbler-device to engage alternate ends of the pawl with the ratchet. The periphery of the ring 18 is toothed to engage a rack 20, which is reciprocated by an hydraulic piston and cylinder arrangement 21, Fig. 2. The locating-bolt 10 is also withdrawn by an hydraulic cylinder 11, Fig. 1, prior to the indexing-movement by the ratchet- and pawl mechanism. The pins 12, Fig. 6, are arranged at an inclination to the radial, and are adjustable axially by a shouldered screw 40, the head of which is reached through an aperture 15 in the casing 5. The index-positions may thus be adjusted through a small amount. Pneumatic or mechanical operating-elements may be used in lieu of the hydraulic arrangement described.
Patent GB-410645-A (GB)
Title: Improvements in or relating to the electro-plating of articles with chromium
IPC: C25D3/04
Filed: 1933-07-28
Abstract: Chromium deposited at high current-densities from an electroplating bath of chromic acid containing a considerable proportion of sodium tetrachromate is of a yellowish colour and is readily alloyed with the foundation metal, e.g. aluminium, iron, nickel or zinc by heating below the fusion point of either metal.
Patent GB-380892-A (GB)
Title: Improvements in or relating to hedge, tree or lawn trimmers
IPC: A01G3/053
Filed: 1932-02-02
Abstract: 380,892. Hedge-cutting machines ; lawn-mowers. HINTON, J. C., Town Hall Garage, Dalton Square, Lancaster. Feb. 2, 1932, No. 21310/31. [Class 6 (ii).] Tn hedge, tree or lawn trimmers comprising two relatively y reciprocating cutters 2, 3 mounted on a support 21 and having serrations or teeth and a driving element mounted on the same support and driven from an electric motor 16, the cutters are rotatable on the support so as to be adjustable for operation as desired on a horizontal, inclined or vertical surface without altering the position of the driving element or disconnecting it from the reciprocating cutter 3. The latter is guided by slots and pins on the fixed cutter 2 which is mounted on an extension 11 of a handle 12. The handle is pivotally mounted with a bolt and wing nut 25 on a vertical extension 24 of the cutter support 21 which is attached by a coupling 22 to an extension 20 of the motor casing. The motor spindle 28 engages, as by a dog-clutch 28a, with the driving element which consists in a short shaft 27 mounted in a cylindrical boss 26 on the cutter support. The shaft 27 carries a disc 29 clamped by bolts and springs 33 between two clutch discs 30, 31. The cutter 3 is connected to the clutch disc 31 by a connecting-rod 36 having a ball-cup 37 at one end fitting around a ball-pin 35 eccentrically mounted on the clutch disc, and a ball 38 at the other end engaging a socket in a member 39 riveted to the cutter 3. The cutters may thus be adjusted in position by the bolt 25 without affecting the position or connection of the shaft 27. The extension 11 may be provided with a handle 12a. The motor may be connected direct to the shaft 27 or through a flexible shaft. The cutter support may be clamped on a pole for cutting high hedges and the motor may then be mounted at the bottom of the pole or independently thereof. Coupling members such as 22 may be provided for a flexible shaft so that such connection and a direct drive may be interchangeable. The cutters may be curved. Cleats may be provided on the motor for a strap attachment.
Patent GB-154343-A (GB)
Title: Improvements in and connected with electric storage batteries
IPC: H01M10/04
Filed: 1919-08-30
Abstract: 154,343. Royston, E. R., (Federal Storage Battery Co.). Aug. 30, 1919. Electrodes; separators; cells; gas exits.-The electrode plates of a storage battery are arranged radially, one set 12 being connected together at the bottom by a plug 13 and at the top by the terminal post 14. The plates 19 of the other electrode are provided with lugs 20 which are connected to a ring 21 carrying the terminal post 22. The inner edges of the plates 19 fit into grooves in separators 25 as shown in plan in Fig. 4. The ring 21 is formed with an opening 23 below the filling-plug and gas exit 17. The cover consists of two plates 15, 15a sealed together and to the jar by a rubber or other fusible compound 15b.
Patent GB-1408526-A (GB)
Title: Toy
IPC: G10K3/00
Filed: 1973-05-04
Abstract: 1408526 Percussive musical instuments R A P QUAYE 26 April 1974 [4 May 1973] 21334/73 Heading G5J [Also in Division A6] A sound-producing manipulative toy comprises a body I from which extend two oppositely-directed wooden rods E each having at its end a hollow cone F1, F2, respectively, and a two-armed lever pivoted at J on a slide A in the body and having at its ends wooden rods in turn each having at its end a further cone F3 F4, respectively, the slide A being biased in wards of the body I by a spring B. The cones F3, F4 &c. are rocked by the fingers back-andforth to snap against the cones F2, F3 and make a cracking noise.
Patent GB-618263-A (GB)
Title: Improvements in or connected with automatic weighing apparatus
IPC: G01G13/00
Filed: 1946-07-17
Abstract: 618,263. Automatic - feed weighers. AVERY, Ltd., W. & T., and TERRY, F. S. July 17, 1946, No. 21357. [Class 143] The cut-off gate 2 of the feed hopper 1 of an automatic-feed weigher is controlled by a pair of counterweighted trigger catches 4, 8, which are tripped in succession by the weigh-beam 5 to effect respectively an initial partial closure and a final complete closure of the gate, the catch 4 co-operating with an arm 6 rigid with the pivot axis 3 of the gate, whilst the other catch 8 co-operates with an arm 7 loose on the axis 3 and engaging the arm 6 to prevent full closure of the gate when the catch 4 is tripped and until the second catch 8 is tripped. In the form shown the catches engage their respective arms by means of anti-friction rollers. The arm 6 has an arcuate extension 6b onto which the catch 4 passes when tripped, and such extension carries an adjustable screw 6c for engagement with an abutment 7c on a similar arcuate extension of the loose arm 7 engaged by the catch 8. When the gate 2 is fully open, arm 6 overlies arm 7 and both are engaged over their respective catches 4, 8. When the weigh-beam 5 first moves, a pin 5b on an extension 5a trips the catch 4 and the gate drops to the partially closed position shown, determined by engagement of the screw 6c with the abutment 7c of the arm 7 which is still held by its catch 8.. A dribble feed ensues until the full weight is made up when a shorter pin 5c on the weigh-beam trips the catch 8 so allowing the gate to drop to the fullyclosed position. Adjustment of the screw 6c determines the dribble-feed rate, whilst adjustment of the pins 5b and 5c determines the moment of partial and final cutoff and enables compensation to be made for the material in suspension at the moment of cut-off.
Patent GB-568880-A (GB)
Title: Improvements in or relating to guide roller carriages for gasholders and like containers
IPC: F17B1/00
Filed: 1943-12-21
Abstract: 568,880. Gas - holders. OXLEY ENGINEERING CO., Ltd., and HOLLIS, H. H. Dec. 21, 1943, No. 21392. [Class 54] The roller spindle for a guide roller carriage is carried by one or more stems which slide in an adjustable element against spring pressure. As shown, the spindle 7 is carried by a stirrup 14 with a stem sliding in the hollow screwed sleeve 11, spring discs 13 being mounted on the stem between the sleeve 11 and stirrup 14. The spindle passes through slots 6 in frame members 2. In another form, each end of the spindle is supported by a stem similarly fitted with a spring and adjusting means.
Patent GB-1141891-A (GB)
Title: Cartons
IPC: B65D5/06
Filed: 1966-05-13
Abstract: 1,141,891. Gable-top cartons. PHILLIPS PETROLEUM CO. 13 May, 1966 [14 May, 1965; 9 Aug., 1965; 10 Jan., 1966], No. 21426/66. Heading B8P. In a gable-top carton each of the ridge panels 56, 57, 70, 71 surmounting a fold-back panel 51, 52, 64, 65, has a length greater than half that of the ridge panels 102, 103; 73, 75 surmounting respectively the front roof panel 107, 108, and the rear roof panel 109, 110, 72, so that when the carton is closed folds 69, 55 either overlap or are forced together preventing leakage. A line of weakness 180 normally covered by a heat sealable tape (93), Fig. 6 (not shown), can be broken to form a spout, folds (190), Fig. 1 (not shown), (comprising parts 191 . . . 195) and 200 being segmented to provide a snap action when acting as fulcra for forming the spout. Chevron scores 210, 211 act as stress-relievers when a loaded carton is dropped.
Patent GB-690222-A (GB)
Title: Chemotherapeutically active salts
IPC: A61K31/64
Filed: 1949-08-18
Abstract: Therapeutically active salts are manufactured by producing salts from acid and basic components one of which is a thiosemicarbazide derivative and the other a thiosemicarbazide derivative or sulphonamide known to be therapeutically active. The salt formation may be effected by reacting the acid and basic reacting components together in a solvent, or by reacting a soluble salt of the acid component (e.g. an alkali metal or ammonium salt) with a soluble salt of the basic component (e.g. a hydrochloride, nitrate or methanesulphonate) in a solvent (e.g. water or diluted alcohol). Examples describe the interaction of: (1) a solution of 21-(4-aminobenzenesulphonamido)-51-ethylthiodiazole in aqueous caustic soda with a solution of 1-(41-methoxybenzyl)-thiosemicarbazide in dilute hydrochloric acid; (2) a solution of benzaldehyde-thiosemicarbazone-4 carboxylic acid in aqueous ammonia with an aqueous solution of 4-aminomethylbenzene-sulphonamide hydrochloride; (3) a solution of 1 - (41 - methoxybenzyl) - thiosemicarbazide in dilute hydrochloric acid with an aqueous solution of the sodium salt of benzaldehydethiosemicarbazone-4-carboxylic acid; (4) an aqueous solution of 4-(b -diethylaminoethyl)-aminobenzaldehyde-thiosemicarbazone hydrochloride with a solution of 4-aminobenzenesulphonylthiourea in aqueous caustic soda; the first component may be replaced by 4-dimethylaminobenzaldehyde-thiosemicarbazone.  The Specification as open to inspection under Sect. 91 comprises also a reference to the reaction of benzaldehyde-thiosemicarbazone-4-acetic acid with 4-aminomethylbenzenesulphonamide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1426432-A (GB)
Title: Respirators
IPC: A62B18/04
Filed: 1972-05-09
Abstract: 1426432 Respirators NATIONAL RESEARCH DEVELOPMENT CORP 8 May 1973 [9 May 1972] 21584/72 Heading A5T A respirator comprises a hood 10 to fit the head of the wearer and having an inner skin 12 and an outer skin 11 with a space between, a filter 16 arranged in said space, and an air-displacing device 14 to propel air 22 through the filter to the wearer's face. The filter comprises a bag 16 of large surface area, of conventional material such as resinbonded wool felt, occupying the major portion of the space between the inner and outer skins. The air-displacing device may be an electrically-driven fan 14, powered by a cap lamp battery and placed at the rear of the hood. The hood may have a visor 18 which is openable and is attached to a flexible skirt 19 which rests on the shoulders 20 of the wearer. The outer skin 11 may be a helmet to protect the wearer, and the inner skin 12 may be flexible to conform to the wearer's head 21. The hood 10 may be supported by a conventional harness 25. The filter 16 may be made sound absorptive to reduce the fannoise, and extra sound-absorptive material may be incorporated in a lining.
Patent GB-801991-A (GB)
Title: Improvements in the production of substituted acid amides
IPC: C07C233/00
Filed: 1955-07-27
Abstract: The invention comprises compounds of the formul  <FORM:0801991/IV (b)/1> and <FORM:0801991/IV (b)/2> wherein R is hydrogen or a non-polymerisable alkyl, cycloalkyl, aryl, alkoxy, cycloalkoxy or aryloxy radical, and R1 and R11 are hydrogen or non-polymerisable organic radicals. Compounds having the formula I are prepared by reacting 1 mol. of a 1 : 2-dicarbonyl compound of the formula R1-CO-CO-R11 with two mols. of a carboxylic acid amide or carbamic acid ester of the formula RCONH2 in a neutral or weak alkaline solution.  Compounds having the formula II are prepared by reacting 1 mol. of a 1 : 2-dicarbonyl compound R1-CO-CO-R11 with three mols. of a carboxylic acid amide or carbamic acid ester of the formula RCONH2 in a weak acid solution, or by reacting 1 mol. of a compound having the formula I with 1 mol. of a carboxylic acid amide or carbamic acid ester of the formula RCONH2 in a weak acid solution. Specified 1 : 2-dicarbonyl compounds are glyoxal, trichlorophenylglyoxal and diacetyl.  The examples describe the preparation of glyoxal diurethane, glyoxal triurethane, trichlorophenylglyoxal triurethane, glyoxal dibenzamide and glyoxal diacetamide.
Patent GB-341493-A (GB)
Title: Apparatus for electro-therapeutic treatment by means of electron valves for connection to alternating current mains
IPC: A61N1/20
Filed: 1929-07-15
Abstract: 341,493. Converting. SCHEEL, J. E, 7, S³dendstrasse, Karlsruhe, and BULL, W. H., 6, Bergbahnstrasse, Durlach, near Karlsruhe, Baden, Germany. July 15, 1929, No. 21722. [Class 38 (ii).] Vacuum or low-pressure apparatus, arrangements of.-Apparatus for the production of direct current for therapeutic use from alternating current by means of incandescent cathode valves comprises in combination, a controlling device acting directly or indirectly on the temperature of incandescent cathode or cathodes, thus adjusting the treating current and means such as a potentiometer, for adjusting the rectified and smoothed output voltage, these means being connected to and operated simultaneously with the current controlling device. The valves employed are such that the distance between anode and cathode is sufficient to prevent burnt out portions of the cathode bridging this space, or valves with grid electrodes between anode and cathode are used, these grids being either unconnected or connected in the circuit so that their circuit is independent of the treating circuit. In the modification shown in Fig. 1, a transformer 17 has two secondary windings 19 and 20, the winding 20 supplying the heating current for cathode 16 of a double wave rectifying valve 13 which has grids 14 connected through a portion of the secondary winding 20. The two sections of the centre-tapped secondary winding 19 supplying anode 15 are bridged by condensers 19<a> serving for phase compensation. The smoothing circuit comprises condensers 21, 22, 23, chokes 24, 25 and resistances 26, 27. The cathode temperature is controlled by a variable resistance 18 and the output voltage by a potentiometer 28, these being mechanically coupled together. According to another modification, the voltages of both secondary windings are simultaneously controlled by a potentiometer in the primary circuit.
Patent GB-741996-A (GB)
Title: Threading device for loom shuttles
IPC: D03J5/00
Filed: 1952-08-29
Abstract: 741,996. Loom shuttles. KEAY, Ltd., T. C., and WALLS, R. N. Aug. 31, 1953 [Aug. 29, 1952], No. 21738/52. Class 142 (2). A self-threading device for a shuttle comprises a plate formed with an eye 2 and has a slot 3 extending tangentially from the eye to the periphery of the plate, and a member 5 supporting the plate and having a wall 7 co-operating with the plate to form an extension of slot 3, and a wall 6 which with the adjacent edge of the plate forms a channel 6A. On the first pick the weft drops into the channel 6A, being guided by a bevelled portion 11 of the plate, and enters a notch 9 in the member 5, continued pull in the weft causing the weft to pass further down the notch and to pass be-. neath a lug 4 formed on the plate. On the return flight of the shuttle the weft slides along slot 3 and enters the eye 2. Specification 670,713 is referred to.
Patent GB-931076-A (GB)
Title: Thermonuclear reactor and process
Inventor: POST RICHARD FREEMAN
IPC: H05H1/14
Filed: 1957-07-10
Abstract: 931,076. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. July 10, 1957, No. 21825/57. Class 39 (4). A thermonuclear reactor comprises means for establishing an axially symmetric magnetic field having intensified reflector field regions in an evacuated space thereby defining a plasma containment zone, and means for introducing and trapping energetic fuel ions in the zone. In Fig. 21 a cylindrical container 41 is connected at one end to a vacuum pump and cold trap 43 and is surrounded by a solenoid 44 and by mirror coils 48 and 49. Ion sources 61 inject fuel ions into the container, the central field produced by solenoid 44 is intensified, and the magnetic mirrors are moved from the ends of the container towards the centre to compress the fuel axially; energy may be abstracted from the plasma by allowing it to expand and push the coils back to the ends of the container. The volumes indicated at 62 and 63 may be filled with material for utilizing neutron emission from the reaction space; this material may be lithium, for producing tritium, or a radiation adsorption material or a fissile material. The apparatus shown in Fig. 22 comprises three zones bounded by coils 77, 79, 81 and 78. The magnetic fields of coils 79 and 81 are less than those of coils 77 and 78, so that if a reaction is proceeding in zone 71 charged particles will escape preferentially through coil 79, rather than through coil 77, and will accumulate in zone 73. Subsequently coil 81 is translated to drive the fuel from zone 73 into a second section zone 72, and so on. Ion sources 61 supply the fuel to zones 71 and 72, and electron or gas sources (not shown) may be provided in zone 73 to neutralize the charge. The reaction zone may have a smaller diameter than the accumulator zone, Figs. 23 and 24 (not shown). A three-zone apparatus may be arranged in the form of an equilateral triangle, Fig. 25 (not shown), with toroidal segments joining the sides of the triangle.
Patent GB-1066118-A (GB)
Title: Arrangement for measuring television antenna voltages
IPC: H04N17/04
Filed: 1965-05-24
Abstract: 1,066,118. Signal strength meters. LOEWE OPTA A.G. May 24, 1965 [June 10, 1964], No. 21843/65. Heading H3Q. [Also in Division G1] In a system for adapting a standard portable transistor television receiver so that it may be used for measuring television antenna voltages, an accessory unit is plugged into a socket in the receiver casing when a measurement is to be made and connected electrically to the IF voltage outputs of the receiver VHF and UHF channel selectors, and the normal AGC feedback to the channel selectors is disconnected by selector switches.  A television receiver incorporating UHF channel selector 1, VHF channel selector 3 and image and sound reproduction facilities 5 is connected to UHF and VHF antennas 2 and 4. A point A on the output IF lines from the channel selectors is connectable to an amplifier 6, peak voltage rectifier 7 and meter 8 contained in an accessory unit, which plugs into the receiver. The meter will indicate the strength of the IF signal, proportional to the received signal strength. In order to calibrate the system the AGC feedback in the receiver to the channel selectors is disconnected by means of the switches 11 and 12 and a known voltage from a source 15 also contained in the accessory unit is supplied to inputs of the channel selectors 1 or 3.