baber/WOPTO huggingface dataset:
Patent GB-152175-A (GB)
Abstract: 152,175. Lawrence, J. Aug. 28, 1919. Taking up refuse for removal; snow melters other than cauldrons.- Relates to automobiles fitted with endless-band elevators for removing snow or refuse from roads, the snow being melted by heat derived from the propelling engine. According to the invention, the trough of the elevator has a hollow base within which circulate exhaust gases, steam, or hot water from the propelling engine, thereby melting the snow as it is being elevated. In the form shown, the elevator belt d is fitted with paddles d<1> working in a trough c trunnioned at e to the chassis a of a motor-vehicle and adjustable by a spring-controlled screw gear g, f. The base of the trough is in the form of a tank p into which exhaust gases are led by a pipe q by way of the hollow trunnion e, the gases escaping through a pipe s. The cooling water of the engine or a separate circulatory system heated by the exhaust gases may be employed to heat the tank p, a return pipe being provid'ed. If the vehicle is driven by a steam engine, the exhaust steam may be circulated in the tank p.
Patent GB-1353541-A (GB)
Title: Information transmission and recording system
IPC: H04L21/00
Filed: 1971-05-17
Abstract: 1353541 Printers XEROX CORP 17 May 1971 [20 May 1970 28 Jan 1971] 15330/71 Heading G4H In a system where a central transmitter transmits to a selected one or more of a number of receiving print-out stations, such as a computer peripheral unit or mobile teleprinter, all stations respond to an initial call signal from the transmitter by switching on low power to a message or data handling and decoding circuit, which enables them to decode the address subsequently transmitted, any station with the corresponding address responds by switching on full power to its printer to be thereby ready to print out the message and data when transmitted. The print out stations may be selected singly, or in groups or all stations together. The data characters are transmitted as a 5 Î 7 dot matrix in serial form column by column, character by character. The printer has a line of print stylii corresponding to a column, which are swept across the recording medium to print a line. The stylii may be electrodes or point sources of light discharging a light sensitive precharged paper. The printer is maintained energized in response to a signal sent before each line. A received signal from the transmitter, via a line or radio link, is demodulated (14) and fed to a serial/parallel converter 20, whose multi-line output is fed both to a register 30 and to a decoder 24. The bits of the incoming data generate a bit-synchronizing signal in generator 18, which is divided at 22 to give a column synchronization signal to clear the store register after every column. The mark and space bits are represented by two frequencies. An alternating burst of these two frequencies provides the call signal which is detected by a resonant circuit 16 to turn on the low power supply 28 to the above logic circuit. Decoder 24 decodes a frame synchronization signal which zeroes the column counter divider 22 and then decodes an address, which may be a 16-bit individual address on 8- bit group or all stations address. At a station whose address corresponds to the decoded station address, the further frame synchronization signal and a beginning of line signal, preceding a line of data, result in the main power unit being switched on to drive motor 54 and the print recording stylii, only for 1À5 seconds which is sufficient to print a line of data. The printer is maintained energized by receiving further beginning of line or frame synchronization signals. In the decoding circuit, Fig. 8 (not shown) the address must be received correctly at least twice and the frame signal and beginning of line signals at least three times before the decoder responds to them.
Patent GB-277432-A (GB)
Title: Method of manufacturing of electrical stove discs
IPC: H05B3/68
Filed: 1926-06-18
Abstract: 277,432. W³thrich, F. C. June 18. 1926. Electric hot-plates.-The grooves in the underside of a cast iron disc which is to form a hotplate are covered with refractory insulating material in the form of a paste, which is then pressed into contact with the grooves under high pressure bv a mould adapted to fit the grooves. The disc is then dried under a rising temperature. Resistance wires are placed in the grooves and covered with the same refractory material and the disc 'is finally pressed and dried under increasing pressure and temperature to remove all air bubbles and moisture. A layer of powdered soapstone may be dusted over the disc to prevent the disc adhering to the press-mould. A suitable refractory material is a mixture of ordinary clay, fireclay and quartz sand.
Patent GB-329169-A (GB)
Title: Improvements in or relating to seats
IPC: A47C7/40
Filed: 1929-05-16
Abstract: 329,169. Johnson, E. E., and Nesta, Ltd. May 16, 1929. Reversible seats; bottoms and backs.-In a reversible seat, the seat proper is slotted between its ends, as at 12, and the pivoted back-supporting lever or levers 2 pass through the slots, while the back B is removably fitted on to the lever or levers. The levers 2 may be formed as narrow bars, Fig. 3, fitting within tubular members 1, or they may pass through sleeves 8 and into sockets 9, Fig. 4. A single central lever and slot may be used.
Patent GB-434291-A (GB)
Title: Elastic draught, dust, and weather excluding strip
IPC: E06B7/232
Filed: 1934-05-23
Abstract: An elastic metal draught-excluding strip consists of an alloy of 88,32 per cent copper, 10,30 per cent zinc and 1,16 per cent tin.
Patent GB-1189085-A (GB)
Title: Improvements in and relating to Submerged Models
Inventor: TONG DUNCAN
IPC: A63H23/04
Filed: 1968-04-01
Abstract: 1,189,085. Submerged models. D. TONG. 26 Sept., 1968 [1 April, 1968], No. 15488/68. Heading A6S. A power-driven model, e.g. a submarine 2, has a depth control device comprising a float 14 mounted on arm 16, which is pivotally mounted at 18 to the body of the submarine so as to allow vertical movement of the float within the conning tower 10, which arm is connected via a pin 30 located in slot 22 to an arm 28, on which arm is a shaft on which are mounted, outside the body, elevators 24. The end 32 of arm 28 constitutes a counterweight. In operation, the body is flooded with water via holes 6 (not shown) and 8. When the submarine tends to rise or fall relative to the float, the arm 16 operates the elevators so as to counteract the rise or fall, under the drive of the power unit. A slidable weight 38 may be provided, located in slot 36 on arm 16 to allow adjustment of the depth of travel. When the weight is in its extreme position away from 18, the upward force exerted by float 14 is small; hence the diving of the submarine is corrected only slowly, and the submarine may be made to dive and surface continuously. With the weight in the other extreme position nearest to 18, the submarine remains on the surface. The arm can be held in this position by engaging sliding bar 46 in notch 44 on the weight, or by contacting a similar bar with a cam surface on the weight (see Fig. 5, not shown).
Patent GB-489405-A (GB)
Title: Improvements in or relating to automatic sheet-feeding machinery
IPC: B65H3/34
Filed: 1937-06-05
Abstract: 489,405. Feeding sheets. BACKHOUSE, H. T. June 5, 1937, No. 15632. Addition to 427,041. [Class 100 (i)] The sheet-feeding apparatus described in the parent Specification in which separation of sheets from a pile is effected by combing devices 22 which act at each side of a pile to produce humps 21 in the pile upon which lifting suckers 11 act to lift the top sheet into contact with forwarding suckers 23 is modified by employing stops 1, to assist the formation of the humps, which are mounted for movement independently of the lifting suckers, and an air blast device 9 is arranged to direct a blast of air against the rear edge of the pile during the initial separation of the sheets. The stop 1 is carried by an arm 2 arranged for independent oscillation about a fixed pivot 3 by means of a cam 4, follower 5, and link 6 coupled to the arm 2. A slot 7 in the link 6 engages the shaft 8 of the cam 4. The blast nozzle 9 is preferably carried by the arm 2, or the nozzles may be mounted and operated independently as described in Specification 475,892, and controlled by valve mechanism as described in Specification 438,480.
Patent GB-675511-A (GB)
Title: Improvements in the manufacture of stable suspensions of particles of solid material in liquid media
IPC: C09D7/45
Filed: 1949-06-13
Abstract: A stable suspension of particles of solid material in a liquid medium is obtained by preparing a suspension of 15-25 per cent by weight of the solid particles, of size not greater than 0.5m , in the liquid and thereupon adding larger particles of the solid, of size greater than 0.5m  but not greater than 200 mesh, until the total amount of the solid in the suspension is 30-60 per cent. The liquid medium chosen is one capable of producing Brownian movement with the solid particles and after the suspension of the smaller particles has been prepared, the Brownian movement is allowed to become sufficiently intense to sustain the larger particles before these are intimately dispersed throughout the mixture.  The process is applicable to the preparation of suspensions of coal in fuel oil, of pigment in drying oil, of graphite in oil, or of ore in oil.  After the stable dispersion has been prepared, it may be subjected to grinding to reduce all the large size particles to less than 64m  in diameter.
Patent GB-969456-A (GB)
Title: Composition and method for blackening the surfaces of cadmium or zinc or alloys thereof
IPC: C23C22/33
Filed: 1963-04-22
Abstract: A bath for forming a black adherent film on zinc and cadmium and their alloy surfaces comprises hexavalent chromium, phosphate radical, sulphate radical and silver ion, said bath having a pH of 0.5-3.0, and is formed by adding a mixture of the above formula of water-soluble compounds, as a dry powder to water.  The preferred formulations additionally contain a soluble nitrate compound in excess of the molar equivalent of silver. The powder composition preferred contains 40-55% by weight hexavalent Cr compound (calculated as CrO3), 35-55% by weight soluble sulphate compound (calculated as NaHSO4), 3-11% by weight soluble phosphate compound (calculated as NaH2PO4) and 0.5-2.5% by weight soluble silver compound; preferably 43-50%, 38-45%, 5-9% and 0.8-1.5% respectively. Sodium nitrate is added in amounts from 1.0-6.0% by weight, preferably 2.5-4.5%. Silver may be added as fluoride or soluble complex salts but preferably as nitrate.  Hexavalent chromium may be added as chromate or dichromate salt, but preferably as chromic acid anhydride.  The powder composition is added to water in amounts of 20-450 grams/litre, preferably 30-50 grams/litre. Some silver precipitates as chromate salt but solubility of silver in the aqueous acid bath of above anions ensures continuing solution of silver from the chromate precipitate to maintain the silver ion equilibrium and effective concentration thereof.  The pH of zinc baths should preferably be below 2.5, and baths for use with both cadmium and zinc and alloys thereof should preferably be 0.6-1.3, and for cadmium a second optimum range is 2.25-3.0. Ambient bath temperatures are preferably e.g. 65-95  DEG F. The process may be applied to steel sheet plated with cadmium or zinc.  U.S.A. Specifications 2,483,510 and 2,524,577 are referred to.
Patent GB-119134-A (GB)
Title: Improved Roof-covering for Railway Carriages and other Vehicles.
Inventor: SEFTON-JONES HERBERT
IPC: B61D39/00
Filed: 1917-10-29
Abstract: 119,134. Jones, H. Sefton-, (Addis, F. H.) Oct. 29, 1917. Fibrous plastic compositions.-A non-conducting covering for the roofs of railway carriages or like vehicles in hot climates consists of a composition containing ground cork, wood fibre, ozidized oil (preferably linseed) and mineral matter, such as kieselguhr, chalk, or baryta, applied to a fibrous backing, such as canvas. Suitable proportions for the composition are 75 per cent of ground cork or woody fibre, 16 per cent of oxidized oil, and 9 per cent of mineral matter. Reference has been directed by the Comptroller to Specifications 7354/90, [Class 22, Cements &c.], and 267/02, [Class 140, Waterproof &c. fabrics].
Patent GB-749160-A (GB)
Title: Improvements in or relating to haulage pulleys
Inventor: REID WILLIAM
IPC: B66D3/04
Filed: 1954-05-28
Abstract: 749,160. Pulley blocks. STEEL & SONS, Ltd., A. Dec. 17, 1954 [May 28, 1954], No. 15781/54. Class 78 (5). A pulley block comprises a hanger 11 with solid arms, a grooved pulley unit consisting of the pulley 16, a tubular shaft 21 with a central distance-piece 24, and ball-bearings 18 located in the bore of the pulley by cap 22 and spaced by the distance-piece, and a bolt 14 to fasten the parts together. The pulley may be flamehardened. The bearings may be self-sealing.
Patent GB-1224375-A (GB)
Title: Improvements in or relating to battery chargers.
Inventor: JUNGHEINRICH FRIEDRICH
IPC: H02J7/00
Filed: 1968-04-02
Abstract: 1,224,375. Automatic current and voltage control. F. JUNGHEINRICH. April 2, 1968 [April 5, 1967], No.15793/68. Heading G3R. A battery charger circuit comprises a D.C. supply constructed with controllable semiconductor devices, and includes means for measuring the battery voltage and adjusting the charging current accordingly by feeding a signal to a phase control circuit. A battery to be charged is connected at terminals 12, 13 to the output from a full wave rectifier 4 which includes thyristors 5, 6 triggered from a phase control circuit 16. The rectifier output is smoothed by a condenser 9. The circuit shown is suitable for charging both 6 volt and 12 volt batteries, and the appropriate charging procedure is selected by relays 23, 24, 25. Thus a 6 volt battery will be sufficient to energize only the relay 23, so closing the circuit 20, a 12 volt battery will operate relay 24 and close circuit 19, whilst a battery of 16 volts or more will operate relay 25, opening a contact 28 and thus preventing any charging from taking place. The circuits 19 and 20 are connected to a regulating device 18, and this device also receives information from either circuit 39 or circuit 40, depending on whether the battery is 6 volt or 12 volt, and these circuits contain preset reference voltage units set to indicate the relevant gassing voltage and final charge voltage of the battery. The charging current is sampled by a tap 53 and compared with a preset maximum current derived from a unit 57. In operation the regulator 18 feeds a signal to the control circuit 16 in such a way that the maximum current is supplied to the battery until the gassing voltage is reached. The current is then gradually reduced until, when the final voltage is obtained, only a very low constant current. is supplied. In a modification, the charging is stopped when the gassing voltage is first reached, and current is again supplied only when the battery voltage has fallen to a preset value. This cycle may be followed a number of times before charging up to the final voltage is allowed to proceed.
Patent GB-764919-A (GB)
Title: Improvements in or relating to process for recovery of oil from minerals
IPC: C10G1/00
Filed: 1954-05-28
Abstract: <PICT:0764919/III/1> Hydrocarbon oils are recovered from minerals containing liquid hydrocarbons, e.g. shale, and oil bearing sands, by mixing the shale &c. with a partially hydrogenated condensed-ring aromatic hydrocarbon fraction of boiling range 500-700 DEG F. which acts as a hydrogen donor, heating the mixture at 500-950 DEG F. for upwards of 10 hours until the hydrocarbon contents of the mineral are extracted, separating the extracted oil from the mineral residues and recovering valuable hydrocarbon fractions therefrom, stripping the mineral residues with steam and finally mixing the residues with air and burning the mixture to convert residual carbon to carbon monoxide which is reacted with steam.  The hydrogen thus produced is used to hydrogenate partially a gas oil fraction which is recycled as the hydrogen donor.  As described with reference to the treatment of shale, powdered shale is mixed to a slurry in tank 11 with the partially hydrogenated oil fraction recycled through line 13.  The mixture is fed through a heater 17 to an extractor 19 from which vapours pass to a fractionator 41 from which gas, gasoline light and heavy oil fractions and diluent are recovered, while the extracted shale passes through line 21 to a fluidized stripper 25 supplied with steam through line 27, the stripped vapours passing through a heat exchanger 35 separator 37 and line 39 to the tower 41.  The stripped shale passes to a burner 29 where it is mixed with oxygen and burnt to give carbon monoxide which is fed to the producer gas plant 71. The producer gas is passed through a scrubber 77 to remove CO2 and the hydrogen passed to a hydrogenator 55 where it is used to partially hydrogenate the diluent fraction from the tower 41 to produce the highly aromatic hydrogen donor fraction which is recycled through line 87 to the extractor 19.
Patent GB-1064696-A (GB)
Title: Improvements in or relating to rotary actuators
IPC: F15B15/20
Filed: 1964-04-16
Abstract: 1,064,696. Powered hinges; door operating mechanisms. HOUDAILLE INDUSTRIES Inc. April 16, 1964 [July 10, 1963], No. 15851/64. Headings E2F and E2M. [Also in Division F1] A power hinge assembly for heavy doors or folding hatch covers comprises two power driven shafts in their respective housings either the shafts or housings being coupled together and their respective housings or shafts secured to the hinged structures. Fig. 2 shows two rotary actuators 21 secured together by plate members 22, the shafts 23 being attached to the hatch cover 15 and deck 18 through brackets 24. In an alternative arrangement the housings 31' are attached to the hinged structures and the shafts 33' are coupled against relative rotation by a plate 32. The power drive for rotation of the shaft is supplied by an oscillating vane unit and control circuit as dipicted diagramatically in Fig. 7, 8 (not shown). The assembly may also be used for operating doors in a wall or bulkhead.
Patent GB-812544-A (GB)
Title: Atomic piles
IPC: G21C11/06
Filed: 1950-06-26
Abstract: 812,544. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 26, 1950 [June 29, 1949], No. 15862/50. Drawings to Specification. Class 39(4). A nuclear reactor is characterized in that a reflector structure is provided inside the reactor core. Preferably there is also a reflector structure surrounding the core. It is explained that the use of an internal reflector increases the average heat which may be extracted over the area of the core. The reflector structures may comprise a moderator material such as graphite, heavy water, beryllium or beryllia or may comprise a moderator having a lattice of fertile material such as uranium depleted of fissile material, or thorium, or the reflector structure may comprise portions of each of these types. For the internal reflector the central part may be of moderator material and the outer part a lattice structure, whereas the external reflector has an inner part of a lattice structure and the outer part of moderator material.
Patent GB-1356652-A (GB)
Title: Method for producing a crimped yarn and the yarn produced thereby
IPC: D02G1/20
Filed: 1971-05-20
Abstract: 1356652 Crimping yarns FIBER INDUSTRIES INC 20 May 1971 [20 May 1970] 16004/ 71 Headings D1F and D1W A process for producing a crimped yarn having latent bulking characteristics comprises drawing a multi-filament yarn, heating the yam to between 80 and 160‹C, crimping the yarn, withdrawing the yarn from the crimping zone under constant tension and at uniform speed, cooling the yarn, increasing yarn tension to a constant tension between 0.003 and 0.5 grams per denier to reduce crimp amplitude, and compacting the yarn. The yarn may be heated by a draw roll, preferably being wrapped a number of times around the roll. The yarn may be stretched between drawing and crimping by 0.01 to 10 per cent. The yarn is preferably crimped by a stuffer box crimper which extrudes the yarn under a tension of 0 to 0.05 grams per denier. The yarn may alternatively be crimped by knife edge, false twist or gear crimping. The yarn may be cooled by a gas jet which also tensions the' yarn to 0.004 to 0.07 grams per denier. The yarn may be compacted, to facilitate further processing by entanglement by gas jets, by twisting or by the application of adhesive. The yarn produced may comprise continuous, synthetic, polymeric filaments each. having 5 to 32 crimps per inch, an uncrimped frequency of 4 to 16, and a per cent crimp of 22 to 50, and may have a total shrinkage of 20 to 50 per cent. The yarn crimp configuration may be sinusoidal, with 22 to 45 per cent crimp, or helical, with 22 to 50 per cent crimp, or saw tooth with 25 to 32 per cent crimp. The yarn may have a denier per filament of 8 to 40, a total denier of 500 to 5,000, and may be made of a polyamide. The uncrimped frequency is defined as the number of crimps in a crimped length divided by the extended length of the same crimped length. The per cent crimp is calculated by measuring the difference in filament length under loads of 0.07 and 0.0001 grams per denier, and expressing the difference as a percentage of the length under the larger load. The total yarn shrinkage is calculated by measuring the difference in length of a loaded yarn before and after steaming and drying, and expressing the difference as a percentage of the first measured length.