baber/WOPTO huggingface dataset:
Patent GB-1483874-A (GB)
Title: Gas jet plug assembly for conveyor pipe line
IPC: B05B1/00
Filed: 1975-06-26
Abstract: 1483874 Spray-producers COALTEK ASSOCIATES 26 June 1975 [1 July 1974] 27164/75 Heading B2F A gas jet plug assembly for introducing gas into_a pipe for conveying granular particles, for example, for introducing steam during the conversion of coal to coke, comprises a sleeve 6 mounted around a hole in the pipe wall 14, a gas jet plug 4 extending through the sleeve and having a longitudinally extending bore 18 and a gas jet nozzle .72 extending from the downstream end of the bore to the end surface of the plug, and a cap 8 which engages with both the plug and the sleeve to hold them together in a predetermined position relative to the interior surface of the pipe. The cap has a shoulder 86 which abuts against an exterior flange 90 on the plug, thereby holding the plug in the sleeve. An interior shoulder 42 in the sleeve abuts against an exterior shoulder 40 on the plug, the positions of the shoulders being such that the end surface 12 of the plug is in precise linear alignment with the adjacent interior surface 36 of the pipe. Rotation of the plug is prevented by the engagement of a pin 70 projecting from the outer surface of the plug in a slot 60 in the sleeve, the position of the pin being such that the gas jet nozzle 72 points in the direction of movement A of granular particles in the pipe. Figure 5 shows a plug having three gas jet nozzles 72a, b and c with orifices 104 on the surface of the end of the plug; Figures 6 and 7 (not shown) show similar arrangements of two and four gas jet nozzles respectively. Each of the gas jet nozzles 72 has a Venturi shape and the orifices 104 are elongated to produce fan-like jets of steam.
Patent GB-162012-A (GB)
Title: Improved electric heat-producing element and applications thereof to apparatus or articles
IPC: H05B3/14
Filed: 1919-11-05
Abstract: 162,012. Roddis, C. H. Nov. 5, 1919. Drawings to Specification. Soldering-irons. - In an electrically-heated soldering-iron the heating substance is enclosed in an asbestos lining in the 'bore of a copper. bit. The, lining is closed by a bush through which the conductors pass, the ends of which are buried in the heating substance. The bit is fitted with a metal connecting box lined with a mica tube into which the leads pass. A brass tube may form the middle part of the tool to which a handle in halves is fitted enclosing the leads and connections. The heating element consists of a single solid block of carborundum, in crystal condition, arranged between two conductors which can be set up automatically or by hand to the carborundum to maintain good contact. According to the Provisional Specification, the heating element may consist of silicon, iron pyrites, copper pyrites, molybdenite, bomite, zincite, or ferron.
Patent GB-1534027-A (GB)
Title: Electro-optical modulator device
IPC: G02F1/05
Filed: 1976-06-30
Abstract: 1534027 Controlling light BATTELLE MEMORIAL INSTITUTE 30 June 1976 [3 July 1975] 27214/76 Heading G2F An electro-optical modulator device for providing controlled transmission of light, comprises a linear array of individual modulator elements each constituting a shutter and consisting of an optical ferroelectric material disposed between a polarizer and an analyzer and electrodes for applying an electric field to said material, and electrical control circuitry connected to the electrodes and adapted selectively to energize and de-energize said electrodes in dependence on electrical control signals, the said material being bi-refringent when subjected to an electric field. The electro-optical medium may consist of a substrate of Perovskite ceramic material, such as PLZT ceramic, common to the individual modulator elements, the said circuitry being of integrated circuit construction. Each modulator element has a switching electrode connected to the control circuit, individual modulator elements being defined by passive electrodes which are connected to earth and are disposed on said ceramic substrate. If the polarization planes of the analyzer and the polarizer are crossed and the electrodes are arranged such that they produce an electric field in each modulator element having a field vector which includes an angle of 45 degrees with the polarization planes of the polarizer and the analyzer, in the presence of such a field a modulator element allows the passage of light therethrough while in the absence of such a field light is blocked. As shown in Fig. 14, the modulator device M 1-N  may be used to control reading of a specimen BV, a line of which is illuminated by a parallel light beam 11. An image BL1 of the illuminated line is reflected from a surface 16 on to the modulator device. The modulator elements of the device are sequentially actuated by the control circuitry whereby a sequence of electrical signals corresponding to the illuminated line of the specimen are produced by a photodetector 18 which receives the light transmitted through the modulator device. The specimen BV is advanced line by line by a transport mechanism. Alternatively, as shown in Fig. 13, the modulator device may be used for controlling a writing process. The modulator elements of the device M 1-N  are then uniformly illuminated and switched to light transmission in dependence upon incoming control signals. The light passing through the device impinges on a light-sensitive element 14 where the image is recorded. The control circuitry may include a shift register having a register cell for each modulator element, and a driver circuit including thin film transistors. Alternatively the control circuitry may comprise an active electronic element which produces an artificial voltage threshold so that the modulator elements can be individually selectively controlled by means of a de-coder.
Patent GB-1240412-A (GB)
Title: Process for the production of azo pigments
IPC: C09B41/00
Filed: 1969-05-29
Abstract: 1,240,412. Preparation of azo pigments. J. R. GEIGY A.G. 29 May, 1969 [30 May, 1968], No. 27219/69. Heading C4P. A process for the production of metal-free azo pigments, free of S0 3 H groups, by diazotizing and coupling in organic solvents wherein the diazotization is carried out without isolation of the diazo compound and the coupling is performed in heterogeneous phase, the diazo and/or coupling components being present in suspension in organic solvents containing not more than 10% H a O. The pigments obtained may be conditioned by heating in the organic solvent medium. If the products contain free COOH groups, they may be further reacted without isolation in the solvent medium to form acid chloride groups which are then reacted with amines or alcohols to give amides and esters. The preparation of mono- and disazo dyes is described.
Patent GB-1505399-A (GB)
Title: Lawn mower grass clipping collection apparatus
IPC: A01D34/63
Filed: 1975-06-27
Abstract: 1505399 Lawn mower OUTBOARD MARINE CORP 27 June 1975 [5 Sept 1974] 27225/75 Heading A1F A lawn mower comprises a wheeled structure 15 housing a rotary cutter blade 21 communicating through an offset discharge chute 53 with a grass clipping collection apparatus 13 which includes a supporting frame 31 supported on the wheeled structure 15, the frame comprising a lower frame portion 61 supporting an air impervious grass clipping disposable collection bag 63 and an upper frame portion 47 supporting a cover 71 and a porous outer bag 65 with a rear flap 67 which is independently and releasably secured to the portion 47 and possibly the remainder of bag 65 to facilitate removal of the bag 63. The frame portions are preferably rectangular. The cover 71 has a downwardly and for wardly concave rear wall 73 with a vertical portion 75 and a vertical forward wall 77 which communicates with the discharge chute, the rear wall guiding clippings into the bag 63. The cover has an outwardly directed flange 83 and a depending skirt 85 around its peri-. phery and is releasably secured to the frame 31. Bristles 91 extend between the cover and bag 63 to guide clippings but allow air to escape through the bag 65. The frame 31 has a bracket 35 of inverted U-shape, the two legs 43 and the cross bar connecting the legs being channel-shaped such that two upright posts 37 and a connecting cross beam 37 on the wheeled structure are releasably received in the bracket. The lawn mower may be a ride-on or walk-behind type, the latter (Fig. 6) having a handle 130 and a supporting frame with vertical rods 143 and V-shaped side portions 145 supporting the collection apparatus 113 on the wheeled structure.
Patent GB-496710-A (GB)
Title: Improvements in thermionic valves
IPC: H01J21/08
Filed: 1937-10-07
Abstract: 496,710. Thermionic valves. M-O VALVE CO., Ltd., LE ROSSIGNOL, R., and DUKE, S. M. Oct. 7, 1937, No. 27238. [Class 39 (i)] In thermionic valves of the type operating with an inter-electrode voltage of 10,000 or more, and a power of considerably more than a kilo watt, and in which, during operation some or all of the internal electrodes are located relatively to the envelope or each other by gravity, means are provided either acting automatically or operated from outside the envelope for locking these electrodes in determinable positions apart from each other or the envelope while the valve is out of use. The valve comprises a filament 2, grid 4 and external anode 1, all supported from the glass part 9 of the envelope. When the valve is inverted a locking link 10, Fig. 1, falls and positions the grid assembly with respect to the anode, and a link 7 positions the filament assembly relative to the grid. Alternatively a locking pin 14, Fig. 2a, projects from an asymmetrical armature 15 mounted in an extension of the valve envelope. The armature may be moved longitudinally to locking position by a magnet 17, and then turned to engage a key 19 with a notch 18. In a further modification two bimetallic strips, arranged cross-wise on the filament assembly, engage spring catches on the grid when cold, but leave the assembly free when hot. A similar arrangement may interlock grid and anode. Or catches inside the valve may be operated by a handle mounted in a metal bellows extension of the envelope.
Patent GB-500342-A (GB)
Title: Improvements relating to dry surface-contact electric rectifiers
IPC: H01L21/108
Filed: 1938-09-19
Abstract: 500,342. Asymmetrically - conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 19, 1938, No. 27279. Convention date, Sept: 18, 1937. [Class 37J In an electric valve of the dry rectifier type, the grid or grids embedded in the barrier layer are provided with a coating of semiconductor to prevent grid-emission. In a preferred example, the various layers are vaporized or sprayed on to a base plate Et of iron in a neutral atmosphere or a vacuum,and comprise a layer H of selenium, layers J<SP>1</SP>, J<SP>2</SP>, of quartz and between them a control grid G formed by a thin coherent layer of gold or graphite, having on each side a layer H<SP>1</SP>, H<SP>2</SP> of selenium, and finally a layer Eg of readily fusible metal.
Patent GB-243155-A (GB)
Title: An improvement in or relating to electrically operated valves
IPC: F16K31/05
Filed: 1924-11-17
Abstract: 243,155. Ashley, W. E., Broadhead, J. B., Tart, H., and Lindsay, J. Nov. 17, 1924. Electrically-actuated valves. - Driving means for an electric motor operated valve comprise a pinion 3 movable along the motor shaft 1 by means of a clutch fork 5 and hand lever 6 to mesh with a gear wheel 10 forming one member of a slipping clutch the other member 11 of which is connected with a pinion 13 meshing with a gear wheel 14 on the valve spindle or on a shaft geared to the valve spindle. The action of the slip clutch is adjustable by varying the pressure of springs 21 by means of nuts 19. For manual operation of the valve, the pinion 3 is moved out of mesh by the hand lever 6.
Patent GB-314472-A (GB)
Title: Improvements in actuating means for pumps
IPC: F02M37/04
Filed: 1928-09-24
Abstract: 314,472. A. C. Spark Plug Co., (Assignees of Babitch, A. M.). June 28,1928, [Convention date]. Spring- and cam-actuated pumps; diaphragm pumps; mountings.-The invention relates to pumping apparatus in which a pump element is reciprocated under the combined action of a pair of springs and a moving element. A diaphragm pump has a spring member to effect the discharge stroke and is connected by thrust-refusing means to a reciprocating member actuated for the intake stroke under the combined action of a cam member and a second spring which surrounds the reciprocating member, both springs having fixed abutments. A pumping element is actuated under the combined action of a moving element and differentially acting springs, one spring affecting the intake and the other the discharge stroke. A diaphragm pump is shown actuated by a sliding rod 35 which is maintained constantly in contact with a rotary cam 36<1> by a compression spring 38 and has a lost-motion connection with a stem 29 on to which the diaphragm 14 is secured between oppositely dished discs 28. The intake stroke is effected by the compression spring 38, while the delivery stroke, which varies depending on the pressure in the pump chamber, is effected by a second compression spring 46 which acts on the diaphragm 14. The lost-motion connection may comprise pivoted links, or an inclined cam surface on the sliding rod engaging a roller on the diaphragm-stem which is in this case arranged at right angles, or, as shown, a head on a reduced portion 41 of the sliding rod 35 extending into a hollow chamber of the diaphragm stem 29. The pump is secured to a horizontal or vertical wall 11 of an engine casing or the like by an attachment plate or by a screw-threaded part 31 of the pump casting 12. A number of pumps may be driven from the single cam 36<1>. Valve seating members 16 screwed into the pump cover 13 are adapted to take filter screen and air vessel fittings 20, 26 in addition to the pipe connections to the fuel tank and carburetter. Specification 274,421 is referred to.
Patent GB-339941-A (GB)
Title: Improvements in and relating to electrical synchronising systems
IPC: H02P5/48
Filed: 1929-09-09
Abstract: 339,941. Blum, C. R. Sept. 9, 1929. Motors with unwound iron armatures.-The stator of the secondary machine of a synchronous system which comprises two coaxial pole rings arranged so that adjacent poles in each ring as well as in the direction of the axis are of opposite polarity, the exciting current being allowed to flow for a certain period in one group after the energization of the next group. A plurality of contacting devices may be arranged to vary the ratio of the speeds of the two machine. The twenty-four poles of the driven machine 2, Fig. 1, twelve of which are shown, are arranged in three groups a<1>, b<1>, c<1> each consisting of eight poles, the groups being energized successively from mains 15, 16, either through a distributor 4 mounted on the shaft of the machine 1, or a distributor 57 mounted on a shaft driven by the hand-crank 56, selection being made by the switch 55. The distributors 4, 57 have twelve segments arranged in three groups a, b, c and the brushes 14, 58, in passing from one segment to the next connect to both for a short period, and give the armature 19 an intermediate position between the groups of poles. The armature 19 comprises four pole-shoes 24 of very soft iron carried on non-magnetic shanks 25 mounted on a shaft 20. Specification 125,454 is referred to.
Patent GB-1155012-A (GB)
Title: A device for Preventing Unauthorised use of Spark Ignition Type Internal Combustion Engines
Inventor: GOODWIN JOSEPH TREVOR
IPC: B60R25/00
Filed: 1965-06-29
Abstract: 1,155,012. Preventing unauthorised use; stop gear. JOHN M. PERKINS & SMITH Ltd. Aug.18, 1966 [June 29, 1965], No.27435/65. Headings F1B and F1K. [Also in Division G4] An anti-theft device comprises a normally open switch 16 in the circuit of a relay 25 which when energized closes a normally open switch A<SP>1</SP> in the ignition circuit. To start the engine it is necessary in addition to closing ignition switch 13 to operate switch 16 manually to connect contact 24 to the relay 25. Prior to starting the switch 16 is earthed through line 26 containing a switch 15 which is opened during normal running by oil pressure. After starting the switch 16 is released and relay 25 is then energized through the line 26, the switch 15 having opened. In a modification the relay is held energized during normal running by the current from the generator which is connected to relay 25 through switch 16.
Patent GB-174402-A (GB)
Title: An improved axle bearing for the trams or wagons used in collieries, quarries and other works
IPC: B61D11/00
Filed: 1920-09-28
Abstract: 174,402. Blasdale, A. Sept. 28, 1920. Corve-axle bearings.-A hollow pedestal A, Fig. 1, is bolted to the truck sole, the lower portion A<1> serving as the lower half of the bearing, and a hollow grease-containing casing E drops into the pedestal and has an open upper end and a lower end E<1> which forms the upper half of the bearing. Ducts H formed in each side of the part E<1> convey grease to the bearing. The casing E is formed with extensions F fitting in recesses D in the pedestal. In the form shown in Fig. 5, the casing E is dispensed with, a part L being cast in the pedestal A to form the upper half of the bearings, and grease is contained in the hollow pedestal. A renewable bush M is employed, or a roller bearing may be used. According to the Provisional Specification, the pedestal A, Fig. 1, may be in two parts hinged together at the outer end of the bearing A<1>. Reference has been directed by the Comptroller to Specifications 19271/98, 14320/01, [Class 103, Railway &c. vehicles], 13489/07, 25038/07, 25874/08 and 7913/13.
Patent GB-158116-A (GB)
Title: Improvements in and relating to saddle mountings for cycles or motor cycles
IPC: B62J1/04
Filed: 1919-11-07
Abstract: 158,116. Downes, G. A., and Derricott, E. H. Nov. 7, 1919. Spring, devices.-The saddle of a motor or other cycle is mounted by means of a bifurcated lug on a flexible member, for example, a plate spring 1 secured to the rear of the tube 11 by plates 5, 6, 7 and bolts 8.
Patent GB-648972-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/50
Filed: 1947-10-14
Abstract: 648,972. Glass-to-metal seals. M-O VALVE CO., Ltd., HAYES, A. G., and MOORE, R. C. Oct. 14, 1947, No. 2751.9. [Class 36] [Also in Group XL (a)] The glass envelope of a thermionic valve is fabricated from at least two separate parts, each providing a substantial area of the envelope, the surfaces which are sealed together during assembly having a metallic coating which provides a conductive path through the glass wall. The parts may be a bell-shaped portion and a flat base, the former having conductive strips of silver or platinum extending from the outer surface across the open edge and on to the inner surface, these forming connections through the glass after the base has been sealed thereto. The metallic coating may be painted on as a suspension, and may be thickened by further deposition before sealing.
Patent GB-722028-A (GB)
Title: Improvements relating to internal combustion engines fitted with charging compressors
IPC: F02B33/00
Filed: 1951-11-26
Abstract: 722,028. Pumps. DAIMLER-BENZ AKT.- GES. Nov. 26, 1951 [Nov. 25, 1950], No. 27672/51. Class 7 (2). The passage leading from the charging compressor to the admission valve seating in the cylinder head is inclined downwardly towards the axis of the cylinder between the compressor and seating at least throughout any section of such passage which approaches towards the axis, the compressor being disposed in or immediately in advance of the cylinder head. A supercharger 12 which may be a Roots blower as shown or a centrifugal or other compressor is located immediately in front of an inlet port 13. A carburetter 15 as shown may be arranged at the supercharger inlet or in a modification the carburetter may be replaced by an axially directed fuel injector which may be suitable for petrol injection. In a modification comprising a multi-cylinder engine the supercharger may be integral with the engine cylinder head and deliver into a manifold from which inlet ports such as 13 branch off. The previously referred to constructions could be similarly adapted for a multi-cylinder engine by providing a manifold in the cylinder head. The supercharger may be driven from the engine or from a separate source of power such as an electric or other motor. In the case of an overhead cam shaft engine the supercharger may be driven by a toothed wheel or chain and sprocket gearing from the cam shaft. When a carburetter is used it may be of updraught or downdraught type instead of the horizontal type shown. The compressor may be installed as a separate structural unit in a recess in the cylinder head.
Patent GB-1372982-A (GB)
Title: Double-twisting machine having a hand knotter
IPC: B65H69/04
Filed: 1973-06-11
Abstract: 1372982 Two for one twisters with hand knotter PALITEX PROJECT-CO GmbH 11 June 1973 [12 July 1972] 27685/73 Heading DID A two for one twister has a stationary holder 25 for releasably mounting a hand knotter 21 infront of each spindle at a position suitable for a thread knotting operation. A transmitter 30 may be provided whose plunger 31 is engaged by the clamping part 28 of the knotter 21 when it is in its holder 25. The transmitter is arranged to stop rotation of the spindle and the subsequent winding device and activate a pneumatic threading up device when the knotter is in position. Each spindle station may be provided with sliding tension members 34 mounted on vertical guides 33 to maintain tension in the yarn ends 4', 4" during knotting, grippers 35 being provided to hold the extremities of the yarn. Reference is made to Specifications 1339211, 1251296 and 1309210 which relate to spindle controls, winder controls and pneumatic threaders respectively.