baber/WOPTO huggingface dataset:
Patent GB-163793-A (GB)
Title: Improvements relating to evaporation or distilling apparatus
IPC: B01D1/22
Filed: 1920-02-24
Abstract: 163,793. Testrup, N., and Techno- Chemical Laboratories, Ltd. Feb. 24, 1920. Film evaporators; vapours, utilizing for effecting further evaporation.-In evaporating liquids, such as sulphite lyes, the liquid is applied as a film on a moving surface, for example, on the outside of a hollow rotating drum a which dips into a bath of liquid in a closed casing b or contacts with a feed-roller dipping into the bath. The vapours evolved are compressed by a pump d to raise the temperature slightly and passed to the inside of the drum to serve as heating-agent. The outside of the drum is kept clean by contact with a revolving brush j or a rubber or like scraper. The scale which is removed may drop into a part of the bath separated by a perforated partition, and may be continuously removed. The surface of the drum may be rough or polished and may be covered with wire gauze or absorbent material. The liquid condensed in the drum is withdrawn by a siphon pipe g and passed through a heat-exchanger i to heat the incoming liquid, which is supplied to the bath through a float-controlled valve h. Concentrated liquid is withdrawn through a valve m<1> operated, according to the specific gravity, by a float m. A scraper may be fitted inside the drum. Specifications 22670/11, 149,055, 150,068, and 150,807 are referred to.
Patent GB-368957-A (GB)
Title: Improvements in or relating to rotary earth boring tools
IPC: E21B4/02
Filed: 1931-02-23
Abstract: 368,957. Hydraulic turbines. LEMBCKE, H., 7, Hedwigstrasse, and SCHMIDT, P., 10, Arcostrasse, both in Munich, Germany. Feb. 23, 1931, No. 5648. Convention date, Feb. 24, 1930. [Class 110 (iii).] An earth boring drill is driven directly by a slow - running hydraulic turbine in which the driving fluid moves at high speed compared with the circumferential speed of the turbine blades and passes through a number of guide and rotor wheels. In Fig. 1, the turbine 2 is slidably connected to the fluid supply pipe 1 by a pipe 4 and comprises a rotor with a number of rings of external blades 7 supported on upper and lower bearings 13, 17, which are continuously flushed by the driving fluid ; the fluid leaving the turbine passes through ports 11, 12 to the drill to remove sludge. The fluid acts on an apertured wall 18 in the rotor to apply pressure to the drill ; the aperture may be conical, and a spring-pressed valve 27, Fig. 4, controlled by a centrifugal member 33 to adjust the pressure on the drill. Means may be provided to byepass the driving fluid through the rotor so as to direct it in a jet on the bottom of the hole to release a stuck drill. In Fig. 2, within the rotor are reverse blades 19, cooperating with guides 21 on a stationary rod 23 ; a valve 25, operated by rods 26, directs the fluid either outside or inside the rotor whereby the drive is reversible. Alternatively, separate main and reverse turbines may be provided one above the other. The Specification as open to inspection under Sect. 91 (3) (a) states also that lifting of the liquid supply or discharge pipe may act through cams &c. to cut off the supply to the turbine ; this subject-matter does not appear in the Specification as accepted.
Patent GB-146559-A (GB)
Title: Improvements in and relating to liquid raising apparatus
IPC: F04B19/16
Filed: 1919-03-07
Abstract: 146,559. Grant, J. C. March 7, 1919. Chain pumps.-Consists in forming chains for use in apparatus such as described in Specifications 21844/14 and 23735/14 of transverse helices wound right and left handedly alternately. Figs. 1 and 2 show a part of a chain composed of helices 1 of similar cross-section, alternately of opposite hand, arranged to overlap and be secured by transverse pins 2 secured at their ends which may project to engage sprocket-wheels or other driving- means. Fig. 3 shows a modification in which smaller helices 3 are placed within and parallel or inclined to the main helices to give an increased liquid-raising surface. Instead of small helices, straight or curved wires may be used. Fig. 4 shows a further modification in which small helices are connected to side plates 4 tied together by pins 5 and pivoted on pins 2. In other modifications, rings replace the helices.
Patent GB-762127-A (GB)
Title: Improvements in or relating to the production of coiled steel strip
IPC: C21D8/06
Filed: 1954-02-26
Abstract: In a process for the production of coiled steel strip the rolled stock is quenched, directly after issuing from the last roll pass and before being coiled, to an external temperature lying between Ar3 and the lowest external temperature at which coiling of the stock is possible, and is then coiled while being further cooled.  The quenching may be performed in a quenching tube, through which water flows continuously, in which case the degree of quenching may be adjusted by altering the inclination of the tube when it contains a fixed amount of water, by using a tube having a fixed inclination which is provided with a number of discharge outlets for the water, the distance in the water through which the stock passes being determined by the position of the operative discharge outlet, or by varying the rolling speed: the latter method may be used alone or in combination with one of the former methods.  Alternatively, the quenching may be effected by running the stock over metal surfaces which are kept cool, e.g. by internal or external cooling with water: this may be used in combination with the quenching tube. After quenching, the stock is passed to a reel subjected to cooling, e.g. by being submerged in, or sprayed with, water, or dry cooled by a blast of cold air, and may then be immediately subjected to an equalizing heat treatment at a temperature of 250 DEG -550 DEG C. for at least 20 minutes.
Patent GB-1387566-A (GB)
Title: Processing continuous filament tow
IPC: D02G1/00
Filed: 1971-03-02
Abstract: 1387566 Treating fibres COURTAULDS Ltd 30 March 1972 [2 March 1971] 5750/71 Heading D1F A tow of synthetic or regenerated e.g. acrylic or viscose, continuous filaments, is filled, opened or separated and perhaps crimped in preparation for stapling and/or spinning or formation into a fleece. It is produced by suspending a running tow in the form of a spread band in a flowing liquid e.g. water, which may contain a fibre finishing material, passing through a divergent passage or channel, overfeeding the spread tow onto a moving foraminous support e.g. a wire mesh screen, to separate it from the liquid and form a coherent web which is dried and then stretched to restore it to tow form. Suction may be applied underneath the support where the tow is first deposited.
Patent GB-682846-A (GB)
Title: Improvements in wood cases for electric fuse units
IPC: B65D43/12
Filed: 1949-03-03
Abstract: 682,846. Fuse-beards. SHOOTER, J. A. May 30, 1950 [March 3, 1949], No. 5785/49. Class 38 (i). A box - like cover is attached to a fuse-board in a readily - detachable manner by providing guide-pieces B on the interior of opposite sides of the cover which engage in grooves C in the sides of the fuse-board, the guides and grooves sloping downwards from the front to the back of the board, whereby the cover is held in place by its own weight.
Patent GB-872830-A (GB)
Title: Improvements in and relating to power presses for pressing tiles and the like from clay dust
Inventor: WARRILLOW HORACE
IPC: B28B3/02
Filed: 1959-02-20
Abstract: 872,830. Moulding presses. RICHARDS TILES Ltd., and BRAYWOOD ENGINEERING CO. Ltd. Feb. 16, 1960 [Feb. 20, 1959], No. 5849/59. Class 87(2). A press for pressing tiles or any form of ceramic workpiece capable of being pressed between dies as provided with a primary pressing mechanism which moves a top die into contact with clay dust in a mould and maintains it in contact while a secondary pressing mechanism is made to descend with impact upon the top die to effect a tamping action. As shown, Fig. 2, clay dust is deposited into a mould 70 by means of a frame 47, which is reciprocated by a ram 46. Subsequently a ram 44 lowers the bottom die 41, and the frame 47 is withdrawn to be recharged from a storage hopper 53. Thereupon the top dies 40 are lowered by means of a pair of rams 39 to compress the clay dust in the mould 70. A rotating disc 15 is brought into contact with, and rotates the flywheel 14, Fig. 1, the disc and the shaft 16 being moved axially by means of a balanced linkage system 18, 22, 23, 25, which is actuated by a ram 61. The rotating flywheel descends rapidly by means of its screwed shaft 13, which engages in a crosshead 12, and strikes the top of the die 40 to impart a tamping action to the clay. When the flywheel is at its lowest point, the rod 25 is lowered by means of the ram 61 so that the linkage system 22, 18, allows the return spring 32 to move the disc 15a into engagement with the flywheel 14 thereby rotating it in an opposite direction and elevating it to its original position where it is braked by means of a shoe 27 which is moved upwardly. The movement of this shoe actuates the linkage system which disengage the disc from the flywheel. The tile is then raised to the level of the charging hopper by the bottom dies 41 which are in turn raised by the ram 45 so that the tile can be discharged to a conveyer by the reciprocation of the charging hopper 47. These successive actions are controlled by trip operated pilot valves which may be of the hydraulic, electric or mechanical, type.
Patent GB-101668-A (GB)
Title: Improvements in or relating to Carburetting Systems of Internal Combustion Engines.
Inventor: KING CHARLES FREDERICK LAWRENC
IPC: F02M1/00
Filed: 1916-04-25
Abstract: 101,668. King, C. F. L. April 25, 1916. Spray carburettors; vaporizers, external.-In a bi-fuel carburettor having several jets which are brought into action in succession by a suctionactuated valve, some of the jets are supplied with petrol and are in action at starting, and the remainder are supplied with paraffin and are brought into action in succession as a gravity valve is raised by suction. The fuel and air to the carburettor and the mixture therefrom are heated by the exhaust. The petrol jets may be cut out automatically after starting. The carburettor 1, Fig. 4. comprises one or more petrol jets 7-and paraffin jets 11 supplied from two float chambers. The petrol jet 7 delivers into a choke-tube 27 always open to the induction pipe, and the paraffin jets 11 into choke-tubes 28 which are brought into action in succession by a suction-actuated gravity valve 2, which slides over the choke-tube 27. The chamber 17 surrounding the jets is supplied with hot air from a muff or sleeve 15, Fig. 1, around the exhaust pipe 13. In a modification, the choketube 27 delivers into the induction pipe through lateral apertures. which are closed by the valve 2 after it has risen sufficiently to uncover one of the choke-tubes 28. The pipe 19, Fig. 5, connecting the carburettor to the cylinders is enclosed in a jacket 20, to which exhaust gases are led by a pipe 21, so that the flame therefrom may impinge on the bend of the pipe 19, the gases escaping at 22. The paraffin on its way to the float chamber is heated in a pipe 14, Fig. 1, closely coiled around the exhaust pipe 13; or it may be heated by circulating in a jacket surrounding a short piece of pipe interposed, with flanged joints, in the exhaust pipe.
Patent GB-588888-A (GB)
Title: Solvents and plasticizers for polyvinyl chloride resins
Inventor: DELORME JEAN
IPC: C08K5/07
Filed: 1945-03-09
Abstract: Polyvinyl chloride is dissolved in or plasticised by admixture with benzaldehyde.  The composition may be used in the preparation of varnishes, glues and films.  A preferred composition, containing 10-15 per cent by weight of polyvinyl chloride, may be used to unite polyvinyl chloride sheets to metal surfaces.
Patent GB-1364756-A (GB)
Title: Apparatus for continuously casting a tubular metal billet
IPC: B22D11/10
Filed: 1972-02-09
Abstract: 1364756 Continuous casting UNIVERSAL OIL PRODUCTS CO 9 Feb 1972 [19 April 1971] 5977/72 Heading B3F A mandrel M of circular cross-section is supported in an open-ended mould 10 while molten metal, such as Cu from a pan 40, is fed in, e.g. through a spout 42, to maintain a constant level L in the mould as a hollow billet is withdrawn. A fuzed-silica float 44 bears a valve 60 for closing the feed spout 42 and straddles both.a bridge 18 (which supports the mandrel M) and a top, fuzed-silica, sleeve 24 of the mandrel. This sleeve 24 for resisting oxide slag, and a lower, graphite sleeve 26 (tapered below a shoulder 36) are threaded on a long bolt 22 suspended from the bridge 18. Molten metal passes from an upper reservoir of the float through bottom passages 62 into the mould 10 which has a water jacket 11.
Patent GB-629464-A (GB)
Title: Improvements in or relating to apparatus for induction heating and hardening of toothed members
IPC: H05B6/02
Filed: 1944-03-31
Abstract: 629,464. Induction heating. STANDARD TELEPHONES & CABLES, Ltd. March 31, 1944, No. 6006. Convention date, April 5, 1943. [Class 39(iii)] [Also in Group II]  An apparatus for progressive induction heating of the teeth of a toothed workpiece comprises an inductor element 2, Figs. 1, 2, 4 formed for closely spaced registration with the teeth of a work-piece 4, Figs. 1 and 2, and driving-means for causing relative movement of the workpiece and inductor element such that the teeth register in turn with successive convolutions of the inductor element. The work-piece is rotatably mounted in a support 5 which travels on rails 8 beneath the inductor element. An idler 16 engages a toothed rack 12 and the work-piece to rotate the latter during the travel of the support 5, which is effected by a finger 22 on a driven endless chain 20 engaging a latch 24 mounted on the support 5. The support moves clear of the inductor element at each end of its travel to enable the work-piece to be mounted on and removed from the support 5, the latch 24 being moved to an inoperative position during this operation. The rate of speed of the drive chain 20 is governed to determine the duration of exposure of the gear teeth to the inductive heating.
Patent GB-573473-A (GB)
Title: Improvements in or relating to plastic sheets convertible to dichloric polarizers and image carriers
IPC: G02B5/30
Filed: 1943-04-15
Abstract: 573,473. Polarizing-apparatus. INTERNATIONAL POLAROID CORPORATION. April 15, 1943, Nos. 6081 and 6082. Convention dates, May 22, 1942. [Class 97 (i)] Sheet material for conversion into a dichroic polarizer or light filter, or for carrying dichroic images, is formed from a sheet of a derivative of polyvinyl alcohol by partially or entirely converting, in situ, a layer of'the material, on one or both surfaces, to polyvinyl alcohol and orienting the molecules of such layer into substantial parallelism. The sheet may consist of an organic acid ester of polyvinyl alcohol, a copolymer of polyvinyl acetate and polyvinyl chloride, a cyclic ether of polyvinyl alcohol, &c. Its surface may be treated with a hydrolyzing agent, for example with a dilute solution of hydrochloric or sulphuric acid if the sheet is a polyvinyl acetal, and apparatus in which the sheet passes, in air, over the absorbent surface of a drum dipping into such agent is described. The orientation may be effected by stretching the material or by friction on the surface layers. Sheets treated on one surface only may be united, with the treated surfaces together or away from one another, by means of an adhesive or a solvent, and the directions of orientation may be the same in the two sheets, if the combination is to form a polarizer, at various angles to one another, up to 90 degrees, in accordance with the desired density, if the combination is to serve as a filter transmitting infra-red rays, and at 90 degrees to one another if the sheet is to bear stereoscopic pairs or other images. Sheets treated on both surfaces may first be treated on one surface, stretched to about four times its original length to orient the surface molecules, treated on the second surface, and then stretched to about twice the original width to orient the molecules of the second surface ; the ratio of the stretches ensures that the final molecular orientation of the first treated surface remains adequate. The surfaces may, alternatively, be treated simultaneously by passing the sheet beneath a roller immersed in the hydrolyzing agent, the orientations being then effected by friction on the two surfaces. The Figure shows a stereoscopic pair of images 28, 29 in treated surface layers 24, 25 of two sheets 20, 22 united by adhesive, the orientations of the molecules in the surfaces being respectively in the directions of the arrows 26, 27. The images may be produced by simultaneous imbibition of a dichroic dye from colloid reliefs. Specifications 549,698 and 552,866 are referred to.
Patent GB-476327-A (GB)
Title: Improvements in impregnated fibre-board and method of making the same
IPC: D21J1/08
Filed: 1936-03-02
Abstract: An adhesive for cementing together sheets of impregnated paper is made of nearly equal parts of rubber latex and starch paste containing water as a solvent: 2--3 per cent of soft asphalte emulsified with silicate of soda or clay may be added.
Patent GB-198745-A (GB)
Title: Improvements in or connected with colour photography
IPC: G03C7/20
Filed: 1922-03-02
Abstract: 198,745. Forbes, Sir C. S. March 2, 1922. Colour photography. - Two-colour photographs are produced by superposing two single-coloured positives or prints one of which is prepared from a colour record negative by a carbon printing process and the other by a bromide printing process. The negatives are produced at a single exposure by using two glass plates, two celluloid film, or one glass plate and one celluloid film placed one behind the other, the emulsion being sensitive to red and green respectively and the dye in the first plate preferably serving as a colour filter to the second plate. A red carbon positive is prepared from the green sensitive plate in the usual manner, or by ising the substances " Carbro," " Ozobrome," or "Radex," preferably an ordinary single transfer paper. A green bromide positive is prepared from the red sensitive plate on " Kerotype " or Kodak " Transfero " paper, and this print is superposed by double transfer on the red print. In preparing the red carbon print a bromide print from the green sensitive plate may be used instead of the negative itself. Paper negatives, which may be enlargements, may be prepared from the original negative and used in the preparation of the positives.
Patent GB-104783-A (GB)
Title: An Improved Water Closet Basin.
Inventor: HIGGINBOTHAM JOHN
IPC: E03D11/02
Filed: 1916-03-20
Abstract: 104,783. Higginbotham, J. March 20, 1916. Closet basins and pans.-A water-closet, of the type in which the water is directed by a deflecting- plate f into a flushing-rim provided with holes h, is formed with sides extending downwards in straight lines to a trap part, which is rectangular in cross-section at the water-line m. The crosssectional area of the trap passage is maintained approximately constant as far as the outflow pipe by cutting back the lower portion n.
Patent GB-905356-A (GB)
Title: Electromagnetic latching relay
Inventor: DISTIN LIONEL SPARKE
IPC: H01H51/08
Filed: 1960-02-26
Abstract: 905,356. Electromagnetic switches. ERICSSON TELEPHONES Ltd. Feb. 1, 1961 [Feb. 23, 1960], No. 6261/60. Class 38 (5). A latched stepping relay includes a disc with a number of equally spaced projections around one face thereof and a hook-shaped member attached to the armature to engage a projection when the armature is moved on relay energization, a reverse prevention pawl and a latch secured to the armature. As shown, the armature 4 is pivoted at 6 and is biased anticlockwise by a spring (not shown) and carries at its end 5 a hook 20 engageable with studs 19 on a disc 8 attached to the shaft 7 so as to rotate the latter each time the electromagnet 3 is energized to attract the armature 4. The disc 8 has slots 25 corresponding to the studs 19 and the slots are engaged by pawl 21 preventing reverse rotation and, when the armature is in its unattracted position, by a latch 24 on the armature end 5 so as to prevent any movement of the shaft due to vibration or acceleration. A contact disc 9 on the shaft 7 has printed circuit contacts (Fig. 4, not shown) co-operating with fixed contact springs 12. In certain switch positions the shaft 7 may be stepped around due to manual operation of a push-button 16 on a rod 13 which can be moved if a projection 26 can enter a slot in an indicator disc 17 on the shaft 7. The rod 13 rotates an arm 14 to move the armature 4 in the same manner as the electromagnet. The disc 17 is prevented from rotating by the projection 26 but when the button 16 is released a spring 29 restores the disc 17 to a position where its stop 27 engages a stop 28 on the shaft 7. In this position the button 16 cannot be operated since the projection 26 will engage the disc 17. The printed circuit contacts may be deposited on the disc 8.
Patent GB-847621-A (GB)
Title: Process for the manufacture of aliphatic dicarboxylic acids
Inventor: VOSS WALTER
IPC: C07C51/347
Filed: 1957-02-25
Abstract: Aliphatic dicarboxylic acids are obtained by treating an aqueous solution or suspension of an alkali metal salt or alkaline earth metal salt of an aliphatic a -hydroxy- or a , a 1-dihydroxy dicarboxylic acid with hydrogen at an elevated temperature under superatmospheric pressure in the presence of a hydrogenation catalyst, e.g., Raney nickel or Raney cobalt.  In the preferred procedure the catalyst is added to an aqueous solution or suspension of the alkali metal or alkaline earth metal salt and the mixture is treated with hydrogen at above 240 DEG  C. and under a pressure of 100 to 300 atmospheres until no more hydrogen is absorbed.  The catalyst is then filtered off and the filtrate acidified with sulphuric acid until a weakly acid reaction to Congo red is obtained and the whole is then extracted with ether. The lower fatty acids formed as by-products are removed from the ethereal extract and the dicarboxylic acids obtained in relatively pure state.  Examples are given for the production of adipic acid from the calcium and sodium salts respectively of a , a 1-dihydroxyadipic acid and of glutaric acid from the sodium salt of a -hydroxy glutaric acid.  Some valeric acid and tetrahydrofuran 2, 5-dicarboxylic acid are obtained as by-product in the example in which the calcium salt of a , a 1-dihydroxyadipic acid is used.