baber/WOPTO huggingface dataset:
Patent GB-598840-A (GB)
Title: A new or improved machine for blending or mixing by continuous operation
IPC: B01F29/64
Filed: 1945-09-20
Abstract: 598,840. Mixing-machines. BLENDING MACHINE CO., Ltd., TYLER, S., BOX, W. E., and CLARIDGE, J. T. Sept. 20, 1945, No. 24354. [Class 86] Powdered materials to be mixed are fed continuously through a hopper 6 and a perforated cylindrical screen 7 into the innermost cylinder A of three concentric rotatable drums A, B, C. The screen 7 is rotatable with the drum A and incorporates spiral feed vanes 7a. Spiral vanes A2, B2, C2. on the inner walls of the drums A, Band C, respectively, convey the material through the drums in succession ; and baffle plates A3, B3, C3, respectively, cause the materials to travel in stepped undulatory motion through each drum. From the outer drum C the mixture is fed by vanes C4 through an outlet 17 comprising a conical flow regulating member 18. The inner end of the drum A is mounted on rollers 8 carried in brackets on the drum B, the inner end of which is mounted on rollers 10 carried in brackets on the drum C. The latter is mounted on rollers 12, and the three drums are rotated by an electric motor 15 through interconnected spur gearing and a driving pinion 14, so that either the drums A, C rotate in a direction opposite to that of the drum B or all three drums rotate in the same direction. In an alternative construction the inner drums do not rotate independently, and the three drums are fixed to a common end plate.
Patent GB-1432174-A (GB)
Title: Method of shaping ductile sheet material and apparatus therefor
IPC: B21D5/01
Filed: 1973-05-22
Abstract: 1432174 Bending material to three dimensional shapes J P KRUGER 22 May 1973 [5 June 1972] 24451/73 Heading B3E A method of shaping ductile sheet material 38 to three dimensional shapes having curved surfaces, comprises bending the sheet to form a curved surface 50 and then bending the material to form a further curved surface 52 which intersects the first surface along a bend zone 54 in which the radii of curvature of the surfaces are equal to each other. An apparatus 10 for forming the shaped articles comprises a former 12 and an anvil 14. The former 12 is fixed to a former holder 18 by nuts and studs 20, 22, the holder being pivotable about an axis 24. A curved clamping surface 28 is provided on the holder and the former is correspondingly curved. Further curved surfaces 32, 32.1 are provided on the former to intersect the first curved surface 30 in bend zones 34, 34.1. The anvil presents a curved surface 36 complementary to surfaces 32, 32.1. The material 38 is clamped between surface 28, 30 to bend the material to a first curved surface with a predetermined portion 38.1 of the material projecting beyond the bend zone 34. Upon displacement of the frame 18 in the direction 40 the portion 38.1 is progressively bent to present a further curved surface intersecting the first surface.
Patent GB-912391-A (GB)
Title: Improvements in or relating to electrostatic precipitator installations
IPC: B03C3/01
Filed: 1960-07-13
Abstract: 912,391. Electrostatic precipitation. METALLGESELLSCHAFT A.G. July 13, 1960 [Aug. 12, 1959], No. 24466/60. Class 39 (1). [Also in Group XII] In an electrostatic precipitator installation the electrostatic precipitator 11, a pre-washing Venturi 4 and after-washing Venturis 19 are all contained in a cylindrical pressure-tight vessel 3 provided with curved end covers to permit the gases to be washed as well as electrically filtered at pressures above atmospheric, the inlet end of the pre-washing Venturi, or the inlet ends of more than one such Venturi is provided, projecting through the wall of the pressure-tight vessel. The Venturis are short to allow the gases to discharge into expansion chambers 9. Sumps for the washing water are provided by partition walls below the after-washing Venturis which are situated on each side of the electrostatic precipitator. The water is re-circulated from the sumps. The sludge water drains through pipes 12 and 16 to the tank 13. A gas decompression chamber at the outlet of the pressuretight vessel includes throttle pipes 24, 24a, Fig. 4, of different cross-sectional areas for delivering the gases into a common duct 25. The installation may be used for purifying blast furnace gases. Probes for measuring the rate of gas flow may be introducd into the throats of the Venturis. Specification 840,707 is referred to.
Patent GB-501847-A (GB)
Title: Electrical apparatus in solid compound filled chambers
IPC: H01F27/22
Filed: 1937-09-09
Abstract: 501,847. Couplings ; transformers. ENGLISH ELECTRIC CO., Ltd., and SENHENN, W. E. Sept: 9,1937, No. 24575. [Class 38 (i)] [Also in Group XXXV] A chamber containing electrical apparatus embedded in solidified insulating compound, such as a current transformer 2 associated with metal-clad switchgear, is fitted with means for heating the compound when the chamber is to be drained. An electric heater 4 may be located in the chamber 1 so as to be embedded in the compound, or in a jacket 7 surrounding the chamber 1. A drain cock 5 may be provided. According to the Provisional Specification the invention may be applied to cable boxes.
Patent GB-290886-A (GB)
Title: Composition for use in substitution for asphalt and bituminous materials and for electrical insulation
IPC: C08L95/00
Filed: 1927-09-20
Abstract: 290,886. Fuery, G. T., (Australian Bituminous Compounds, Ltd.). Sept. 20, 1927. Compositions containing bituminous materials. -A composition suitable as a substitute for bitumen in road making and paving compositions, electric insulating materials, damp courses for buildings &c., comprises oil shale and tar. Suitable proportions are oil shale 2 parts and tar 3 parts. The composition may be mixed with filling materials such as ironstone, hµmatite, carborundum, coal, lignite, coke, slag, oil shale residues, shale coke, infusorial earth, magnesite, limestone, lime, asbestos, cement, pumice stone, firestone, fireclay, metal filings, chopped rubber, residual oil bitumen, ground glass, silicate of soda, silicate of lime, potash, sawdust, cork, broken stone, sand, gravel, bauxite and baryta.
Patent GB-277811-A (GB)
Title: A detachable safety apparatus for doorways, windows and the like
IPC: E06B9/06
Filed: 1926-10-06
Abstract: 277,811. Mulford, W. C. Oct. 6. 1926. Window guards.-A guard to prevent children falling downstairs or out of windows consists of a flexible network secured to pillars B which are adapted to be attached to the windows or other frame posts A by means of eye-bolts in the posts and spring hooks D swivelled to rings on the pillars. By undoing one upper hook, the guard may be sufficiently displaced to permit the passage of an adult.
Patent GB-1379888-A (GB)
Title: Charging systems for batteries
IPC: H01M50/204
Filed: 1972-05-25
Abstract: 1379888 Battery charging systems ACOUMULATORENFABRIK SONNENSCHEIN GmbH 25 May 1972 [8 June 1971] 24792/72 Heading H2H  A battery charging system of the type which comprises a voltage regulator 9 for limiting the charging voltage to a value depending on the temperature of the battery during a charging operation comprises a temperature sensor 10 connected to the voltage regulator 9, the sensor being located outside the battery 2 but not attached thereto and being held in heat transmitting contact therewith by resilient means 11. The temperature sensor may be a thermistor and the resilient means are preferably springs. The thermistor may be held in contact with the bottom or a side wall of the battery and housed in a space 8 in the battery support 1. To render the sensor insensitive to ambient conditions, heat insulating material 9<SP>1</SP> may be placed around the assembly 9, 10 or around the inside surface of the space 8. If desired the regulator 9 may be placed outside of the space 8.
Patent GB-1263784-A (GB)
Title: Process for the production of mixtures of a synthetic rubber-like elastomer and a wet-precipitated silica filler
Inventor: SCHUYT ABRAHAM VAN DER
IPC: C08K3/36
Filed: 1969-05-15
Abstract: 1,263,784. Synthetic rubbers. KONINKLIJKE ZWAVELZUURFABRIEKEN V/H KETJEN N.V. 15 May, 1969, No. 24806/69. Heading C3P. Synthetic rubber vulcanizates are prepared by mixing a vulcanizable synthetic rubber polymer or copolymer having a Mooney viscosity below 100 or a vulcanizable ethylene/ propylene/diene-monomer copolymer with a reinforcing, finely-divided, wet-precipitated spray dried silica and a vulcanizing agent and vulcanizing the mixture. The synthetic rubber may be a butadiene polymer, a styrene/butadiene copolymer or a mixture thereof. The silica is preferably obtained by spray-drying an aqueous suspension of freshly prepared, wetprecipitated silica containing 1-20 wt. per cent of SiO 2  in a direct-current type spray drier at an inlet temperature of 300-600‹ C. and an outlet temperature of 100-140‹ C., the proportion of the amount of silica suspension to the amount of hot drying gases fed to the spraydrier being such that a dry product having a loss on ignition of about 10 wt. per cent and an average agglomerate size of 20-150 microns is obtained. The mixtures may also contain active zinc oxide, stearic acid, triethanolamine, mercaptobenzothiazole, tetramethylthiuramdisulphide, sulphur, diphenylguanidine and known tackifiers and softeners, such as petroleum distillates.
Patent GB-400756-A (GB)
Title: Improvements in electric lamps
IPC: H01J61/18
Filed: 1932-09-06
Abstract: 400,756. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Sept. 6, 1932, No. 24845. Convention date, Nov. 6, 1931. [Class 39 (i).] Lamps giving light, including infra-red rays, approximating to daylight are filled with a mixture of rare gas and caesium or rubidium vapour and are so operated that the vapour pressure rises above À02 mm. corresponding to a temperature of 150 C. Caesium and rubidium vapours giving the same pressure at the same temperature may be used together. The rare gas may be argon or neon at a pressure of a few mms. Oxide cathodes as described in Specification 344,497 are used ; the electrodes in the tube shown each comprise a bar 3 of alkaline earth oxide in a heater winding 2 with two leads 4, 5, the operating current being applied to both leads after the electrodes have been heated. The glass of the envelope 1 is a borosilicate softening above 500 C. and containing alumina and less than 50 per cent of silica as described in Specification 351,245. Heat losses are reduced by sheaths 8 near the electrodes or over the whole tube as described in Specification 341,601. The envelope 1 may be surrounded by an outer glass envelope with the intermediate space evacuated. Caesium or rubidium is introduced as a body or coating 7. Details of a tube filled with neon at 10 mm. and operating with a vapour pressure of 50- 100 mm. corresponding to 450-500 C. are specified. Tube temperatures of 400 C. are also specified. Specifications 5545/03, [Class 39, Electric lamps &c.], 175,032, 269,161, and 306,831, [all in Class 39 (i), Electric lamps, Arc &c.], also are referred to.
Patent GB-1056697-A (GB)
Title: Improvements in decorative plastics extrusions
Inventor: ANSLEM ANTHONY CESAR
IPC: B29C48/06
Filed: 1964-06-16
Abstract: 1,056,697. Surface coatings. CREATORS Ltd. June 15, 1965 [June 16, 1964], No. 24927/ 64. Heading B2E. [Also in Divisions B5 and B6] A composite decorative strip, e.g. for use as edge trimmings on motor car bodies and generally as a substitute for chromium plated strips, is produced by bonding a metal-plastics foil 1 to an extruded core 2, e.g. of P.V.C., either during or after extrusion of the core, and feeding both the core and foil through an extruder crosshead to form a transparent or translucent layer 13 of plastics material, e.g. crystal clear P.V.C., over the foil 1. The foil 1 may comprise metal foil laminated to one, or sandwiched between two plastics foils, or a metallized plastics foil, e.g. polyester film having aluminium sprayed or vacuum deposited on one surface thereof, with or without the metallized surface being laminated to a plastics foil, e.g. of P.V.C.
Patent GB-144941-A (GB)
Title: Knee pads
IPC: A61F13/06
Filed: 1919-10-13
Abstract: 144,941. Walsh, R. Oct. 13, 1919 Knee-caps; pads.-Pads, which, it is stated, will keep the feet warm are placed at the rear part of the knee and .are composed of a casing F of silk or other textile material containing non- conducting material E such as asbestos, indiarubber or gutta percha with means of attachments in the form of tapes H with graduated loops L to engage buttons G. Alternatively, the casing may be soaked in a solution of the non- conducting material. Fig. 1 shows the pad in position.
Patent GB-205108-A (GB)
Title: Improvements relating to tanks
IPC: H01F27/14
Filed: 1923-10-08
Abstract: 205,108. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Eschholz, O. H.). Oct. 6, 1922, [Convention date]. Transformers. - A layer of inert gas is produced and maintained above liquid in a tank, especially a tank for oil-immersed electrical apparatus such as transformers or circuit-breakers, by means of a deoxidizing agent 7 placed in a receptacle 6. The agent is preferably one, such as phosphorus, having a hygroscopic oxide.
Patent GB-742290-A (GB)
Title: Improvements in or relating to registering and translating circuits for use in telecommunication systems
Inventor: THREADGOLD RONALD
IPC: H04Q3/42
Filed: 1952-07-09
Abstract: 742,290. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. July 9, 1953 [July 9, 1952], No. 25042/54. Divided out of 742,249. Drawings to Specification. Class 40 (4). The system described is the same as that in Specification 742,249 wherein an arrangement for operatively connecting a control apparatus such as a translator with any one of a number of equipments such as registers, has control apparatus arranged periodically to transmit a conditioning signal to all the equipments to initiate a hunting operation thereover and equipments requiring to be operatively connected with the control apparatus respond in such a manner that the first of the conditioned equipments reached is operatively connected exclusively with the control apparatus, but the claims are directed to telephone system circuit arrangements comprising an electronic translator and a number of electronic-register-senders in which digits are transferred in coded form from the register-sender to the translating circuit wherein the digits are converted into decimal form to enable their translation into different digits to be effected and the translated digits are converted to coded form for transfer to the register-sender. Specification 742,289 also is referred to.
Patent GB-1002744-A (GB)
Title: Data transmission system
IPC: H04N1/00
Filed: 1964-06-19
Abstract: 1,002,744. Telegraphy. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1964 [July 3, 1963], No. 25384/64. Heading H4P. In a data transmission system adjacent 1 bits are transmitted as pulses which have different polarity, and each such pulse is followed by an additional pulse having the opposite polarity. At the transmitter, data A is converted to the form B by passing it to a toggle, and, by differentiation, waveform C is Obtainedadjacent pulses represent adjacent 1 bits and have opposite polarity. By delaying this waveform as at D and adding it to the inverted waveform C, i.e. to E, a resultant waveform F is derived, which has the characteristics referred to above. The signal on the transmission channel is as G. The receiver includes a logic arrangement for operating an output toggle which gives a waveform similar to that at B. The logic is such that the output toggle is connected to the receiver only when 1 bits are being received.
Patent GB-657128-A (GB)
Title: Improvements in or relating to infra-red heat generators
IPC: A61N5/06
Filed: 1948-09-29
Abstract: An infra-red radiation device comprises a radiation generator mounted in a reflector body, the rim of which is heat-insulated and is intended for direct application to the body.  The heat generator is selected to have a power of between 0.75 and 1.5 watts per cubic inch of the volume of air in the reflector body.
Patent GB-702144-A (GB)
Title: Improvements in or relating to apparatus for transforming thin-walled, flexible tubes into a form suitable for transport
Inventor: BERRY WILLIAM
IPC: B65H45/20
Filed: 1950-10-18
Abstract: 702,144. Pleating. BRITISH CELLOPHANE, Ltd. Oct. 16, 1951 [Oct. 18. 1950]. No. 25414/50. Class 141 Apparatus for transforming a thinwalled flexible tube into a form suitable for transport by gathering the tube in transverse pleats, comprises means for advancing the tube over a mandrel to the pleating station, pleating means comprising sets of straight-edged blades operated in regular succession to gather the tube into pleats in two series over the mandrel, the pleats of each series forming a regular nolygon and means for compressing the tube to a small fraction of its original length on the mandrel. As shown apparatus for producing two triangular series of pleats comprises a mandrel 3, Fig. 3, in the form of six separate plates arranged hexagonally, over which the tube 1 is drawn by means of six boards 4 each carried on an elbow 5. The elbows are mounted on spring-controlled slides 6 and springs 9 from the elbows pass through a ring 11 and are secured alternately to beams 12, 14 depressed by cams 13, 15 respectively, the cams being 180 degrees out of phase. Depression of the beam 14 causes the associated boards 4 to contact the tube and then travel downwards forming a series of pleats, then the other boards 4 operate in the same way to form further pleats which build up on a platform 16. The accumulated pleats are subsequently compressed and withdrawn over the mandrel 3. In an alternative form, Fig. 5, the mandrel comprises an opener portion 22 and an octagonal pillar 23 around which are mounted eight cam - boxes 24 each containing a spring - controlled sliding block and piston carrying a knife-edge 27 constrained to execute a trapezoidal motion. The cam-boxes 24 are driven by a chain 29 and alternate ones are 180 degrees out of phase so that the knife edges 27 operate in alternate sets of four to produce the pleats which are compressed against the platform 31. The second portion of the mandrel may, alternatively, comprise a shell of paper &c. so that the shell and pleated tube may be removed together. The tube may be made of paper, plastic &c. and the end may be closed after pleating to form a collapsed bag. In a further construction, the sets of pleating bodies may be mounted at separate pleating stations in staggered relation along the length of the tube.
Patent GB-779513-A (GB)
Title: Improvements in and relating to parallel guiding contrivances particularly for drafting devices
IPC: F16H35/00
Filed: 1955-09-06
Abstract: 779,513. Mathematical drawing appliances. KRISTIANSEN, S H. Sept. 6, 1955, No. 25533/55. Class 97(3) A device for ensuring parallel motion of a member, particularly a drafting machine, over a plane surface, comprising at least two freely rotatable balls mounted in the device so as to roll on the surface and two interconnected rotatable rollers engaging the balls to cause them to rotate with equal peripheral velocities. Thus, Fig. 9 is a plan view' of a drawing polygon 42 supported on three balls 122, 123, 124 the lower periphery of each of which projects through a hole in the polygon, while the upper part is supported in an inverted cup 50 containing ball-bearings 56. A shaft 132 in bearings 58 carries rollers 128, 130 in frictional engagement with the balls. A similar shaft 232 carries rollers 228, 230 the latter of which also engages the ball 124, the balls 123, 124 being further engaged by rollers 328, 330 on a shaft 332. Movement of the device may be limited to one direction by the application of a brake 74 or 76 which bears on a disc 70 or 72. Such movement is indicated on one of the graduated discs 66 co-operating with indices 68. In simpler embodiments two balls are used and are engaged either by a single roller between them at different axial positions thereof, or by a single, pair of separate rollers on a common shaft. In Fig. 15 the three balls are disposed at the vertices of an equilateral triangle and driving interconnection is provided by pairs of rollers 528, 530 on shafts 532. There may also be a further central ball in frictional engagement with the other three and disposed either with its centre at the same height as that of the others or, being larger than the others, above them as shown at 586. Thus it may be mounted on an inverted-cup 550, with ball bearings 556, vertically adjustable by a screw 594 carried by legs 592. The central ball then provides the vertical location for the other three. In a slightly different embodiment shown in section in Fig. 16 each ball 622 engages the ends of two rollers 632 in ball bearings 658 and is located vertically by a ball 614 carried by ball bearings 656 in a housing formed partly on a member 610 and partly in a member 650. An enclosing housing 620 is rotatable on a bearing 602. Movement of the device may be arrested by a brake 674 brought into engagement with the drawing surface by depressing a spring loaded plunger 675.
Patent GB-937717-A (GB)
Title: Improvements in and relating to means for producing alternatively a variable driving torque and a constant frequency current
Inventor: WRIGHT OWEN EDGAR
IPC: H02P9/42
Filed: 1961-07-14
Abstract: 937,717. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1962 [July 14, 1961], No. 25626/61. Class 38 (3). [Also in Group XXXV] A polyphase dynamo-electric machine 1 operates as a motor to start gas turbine 2, and as a generator driven by the turbine to supply current to a load network operating at constant frequency. When the machine 1 is motoring, power is drawn from network 7 through frequency changer 6 comprising semi-conductor converters. A three-phase reference voltage is supplied to the frequency changer from a local oscillator 8, and a control voltage through switch 9s. During the initial starting period, the machine 1 operates as an induction motor at low frequency and low voltage. When the machine has accelerated to a speed corresponding to the frequency of oscillator 8, the oscillator is disconnected and the reference voltage for the frequency changer is now taken from tachometer generator 3, such voltage being phase-advanced with respect to the E.M.F. generated in machine 1. The field of the machine 1 is now excited with direct-current through terminals 4, 5, and the machine acts as a synchronous motor for further acceleration. Thereafter, the turbine drives the machine as an alternator, the frequency of which is reduced by the frequency changer to the value required by the network 7. Direct-current excitation is supplied through terminals 4, 5. Control signals for the frequency changer are now supplied from generator output line 11. Reference signals whose frequency corresponds with that of the network 7 are supplied to the frequency changer from a local oscillator. When several units are individually coupled each to a turbine, the reference signals of supply frequency can be derived from a frequency changer associated with a turbine which has already run up.