baber/WOPTO huggingface dataset:
Patent GB-773940-A (GB)
Title: Process and apparatus for the production of alkali metals and magnesium
IPC: C22B26/22
Filed: 1955-09-02
Abstract: 773,940. Production of alkali metals and magnesium; alloys. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALI,URGIQUES. Sept. 2, 1955 [Sept. 3, 1954], No. 25320/55 Class 82(1) Alkali metals and magnesium are prepared by passing the vapours of their chlorides in vacuo over solid calcium carbide which is maintained at a high temperature, preferably between 800 ‹C. and 1100‹C., and condensing the vapour of the metal which is produced. In the apparatus shown in the drawing calcium carbide which may be in granulated form mixed with carbon Raschiz rings is fed from hopper 3 into column 1 in which it is pressed downwards by plunger 2. Molten metal chloride in container 6 is vaporized and the vapour passes through orifices 7 into the column 1 where it reacts with the carbide to form metal vapour which passes via swan neck 10 to an oil containing receptacle 9 in which it condenses. The pasty mass formed by the products of reaction are forced down the column to a seal 5 from which they are removed through pipe 6. Heating means such as resistors 11, 12 and 13 are provided for maintaining the correct temperatures in various parts of the apparatus. Alloys of the metals may be formed by using mixtures of the corresponding chlorides.
Patent GB-1464615-A (GB)
Title: House-exchange telephone system
IPC: H04M9/00
Filed: 1974-05-30
Abstract: 1464615 Automatic exchange systems PLESSEY CO Ltd 2 May 1975 [30 May 1974] 25369/74 Heading H4K The PABX disclosed in Specification 1,437,031 is modified by the addition of:- (a) A number of "long-line" extension units 1 and (b) An operator position 4. A long-line extension is one which, owing to its distance from the central control and switch block, is provided with only a single conductor pair 5 for both speech and signalling as opposed to a "normal" extension 10 having separate conductor pairs for speech and signalling. Long-line extension units.-Each is equipped with either a dial or a push button keypad. This means that the "named" keys, depression of which effects a connection to the "named" extension, of a "normal" extension 10 are dispensed with. Dialled digits are translated into the system signalling format in a line interface unit 3. To seize an exchange line the prefatory digit 9 is dialled. External calls cannot be received directly but may be transferred from a "normal" unit 10 to which the call was originally routed.  Operator position.-Any "normal" unit 10 may be converted to an operator position by the addition of a monitor panel, Fig. 6 (not shown), which indicates the status of each line, and accompanying circuitry, Figs. 7 and 8 (not shown). The signalling format of the unmodified system is retained, and all the conventional operator functions are available. The system outlined above is a 4+16 line system (4 exchange lines, 16 extensions). It may be expanded to an 8+32 line system. The extra time slots required for scanning the 16 extra extensions are provided by dividing the extensions into two groups, A and B. Group A would be scanned in time slots 1-16 while control of Group B is inhibited, and Group B would be scanned in time slots 17-32, while control of Group A is inhibited.
Patent GB-397309-A (GB)
Title: A process for dehydrating or wetting aqueous substances with organic liquids
IPC: C08B5/04
Filed: 1932-09-12
Abstract: Nitrated substances such as cellulose nitrate, nitrostarch, nitropentaerythrite and tetranitromethylaniline are dehydrated and wetted with organic liquids by adding an organic liquid and heating until all the water and part of the organic liquid are removed by distillation.  The remainder of the organic liquid may then be completely or partly removed, for example, by evaporation or by pressing.  Suitable organic liquids are benzine (b.p. 140-200 DEG C.), carbon tetrachloride, ethylene trichloride, benzene chloride, xylol, and secondary or tertiary amyl alcohols.  Lower boiling liquids such as hexane, benzol, toluene, ethylene chloride, and tertiary amyl chloride may be used as dehydrating agents, but it is preferred to replace them in the dehydrated material by a liquid of higher flash point.  In examples, (1) wet nitrocellulose is mixed with benzine (b.p. 140-220 DEG  C.) and heated until the water has distilled over.  The nitrocellulose is then pressed to a benzine content of 20 per cent.  (2) Wet nitrocellulose is mixed with benzine (b.p. 134-147 DEG  C.), subjected to distillation until water is removed, and pressed to a benzine content of 20 per cent.  (3) Wet nitrocellulose is mixed with benzine (b.p. 80-126 DEG  C.), and treated as in (1).  The benzine in the product is displaced by a benzine of higher flash point and pressed to a liquid content of 20 per cent.  A mixture of wet nitrocellulose and benzine may be subjected to distillation by passing through it an inert gas or the vapours of an organic liquid of low boiling point, e.g. petroleum ether, or ethylene chloride.  (4) Wet nitrocellulose is mixed with benzine (initial b.p. 140 DEG  C.) and heated to 70 DEG  C. Petroleum ether is introduced drop by drop, whereupon a mixture of petroleum ether and water distils over.  The remainder of the petroleum ether is removed by raising the temperature to 100 DEG  C.
Patent GB-472868-A (GB)
Title: Improvements in cuff links
IPC: A44B5/00
Filed: 1936-09-18
Abstract: 472,868. Sleevelinks. JARRETT, RAINSFORD, & LAUGHTON, Ltd., and LAUGHTON, G. A. Sept. 18, 1936, No. 25399. [Class 43] In a sleevelink of the kind in which a chain connecting the buttons is extensible against the action of a spring contained within the button a, the chain is made longer than can be taken up by the spring and is passed through a plate d forming part of the button b, being secured by means such as a pin f concealed by the front of the button. Specification 243,189, [Class 43], is referred to.
Patent GB-1215299-A (GB)
Title: Improvements relating to safety equipment for overhead workmen
Inventor: WISE JOHN FREDERICK
IPC: A62B35/04
Filed: 1967-06-01
Abstract: 1,215,299. Safety harness. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 31 May, 1968 [1 June, 1967], No. 25399/67. Heading A3V. [Also in Division F2]  A workman's lifeline is suspended from a jib via an automatic clamp having a pulley wheel which incorporates a centrifugal clutch so that when the velocity of the line through the clamp exceeds a certain value a plate 33 is locked to the pulley. This plate carries means (not shown) for engaging a slide 34 when the plate is rotated, forcing the slide down, and hence also a member 36 carrying three balls which engage the line. The jib can pivot in a horizontal plane.
Patent GB-654554-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R11/10
Filed: 1948-09-29
Abstract: 654,554. Current and voltage measuring. SANGAMO WESTON, Ltd. Sept. 29, 1948, No. 25418. Convention date, April 15. [Class 37] A D.C. measuring instrument, e.g. of the moving-coil type, is damped by a network, consisting of resistances and capacities only, tuned to the natural resonant frequency of the moving system, and connected to the input so as to suppress this frequency in the circuit.
Patent GB-368230-A (GB)
Title: Improvements in the production of fine threads of artificial silk
IPC: D01F2/30
Filed: 1930-08-26
Abstract: <PICT:0368230/IV/1> <PICT:0368230/IV/2> Artificial threads are spun by the dry spinning method in the usual manner but before they have become completely solidified they are allowed to issue from the spinning chamber and are subjected in this plastic condition to the action of a swelling agent which does not dissolve the substance of the thread, and then stretched.  As swelling agents there may be used water, benzene hydrocarbons, alcohols, chlorinated hydrocarbons, or other single or mixed liquid which does not dissolve cellulose esters or ethers.  Softening agents which remain in the fibre are excluded. Sizing agents may be added to the swelling agent.  The latter may be used in gaseous or liquid form.  The threads may thus be stretched by 30 per cent or more, and at the same time the strength is increased. In an example threads of acetyl cellulose from a nozzle a, Fig. 1, in the cell b, issue from the cell while still plastic and pass into a stretching chamber c into which steam is introduced.  In another example the threads after leaving the spinning chamber pass through a bath containing benzene and an oily size and are then stretched on the way to a winding spool. In a further example, the thread on issuing from the spinning chamber b, Fig. 3, is sprinkled with alcohol issuing from a jet m and is then passed through the bath i also containing alcohol. The thread passes over guide k and the curved lip n of the bath i and is wound on the spool h, the stretching occurring between this spool and the guide.
Patent GB-1346097-A (GB)
Title: Process for the resistance of opal glass to chemical attack
IPC: C03C23/00
Filed: 1971-04-19
Abstract: 1346097 Process for improving the corrosion resistance of opal glass SOC DES VERRERIES INDUSTRIELLES REUNIES DU LOING 19 April 1971 [27 March 1970] 25521/71 Heading C1M A process for improving the resistance of opal glass articles to chemical attack comprises forming or moulding a glass having a phase miscible with the glass at a temperature above a given temperature, below which temperature the phase is immiscible, bringing said glass to a temperature above said given temperature and rapidly cooling a superficial layer of the glass from above the given temperature to below the given temperature so that the superficial layer contains fewer and smaller crystallites than in the underlying body of the glass, and the separated phase is of a size no more than 1/5th of the size of the separated phase in said body of the glass (Fig. 2). The glass which may be a borosilicate glass of composition SiO 2  75%, B 2 O 3  13%, ZnO 9%, Na 2 O 3% is formed or moulded into the desired shape by the application of a forming or moulding tool above the given temperature. The superficial layer of the glass article may be cooled in numerous ways. The cooled parts of the forming or moulding tool may be maintained in intimate contact with the article; a stream of cold fluid, e.g. air, may be passed over the surface of the article; a cooled object, e.g. a water sleeve, may be brought into contact or close proximity with the surface of the article. Any method of cooling must achieve a cooling rate of at least five times that usually used to preserve the shape of the glass article and to allow its subsequent removal from the mould. To partially redissolve the immiscible phase in the superficial layer the article is reheated. The temperature of the layer is maintained above the temperature for miscibility of the two phases of the glass for such time as upon removal of the heat source there is rapid cooling of the layer. The superficial layer may be reheated by placing the article for several seconds at approximately 1800 C. either in a furnace of in a bath of molten metal, or by passing an oxy-hydrogen flame over its surface at a speed of 2 cm. per second.
Patent GB-389502-A (GB)
Title: Improvements in or relating to coking retort ovens
IPC: C10B5/02
Filed: 1931-09-11
Abstract: 389,502. Coke ovens. KOPPERS CO. OF DELAWARE, Koppers Building, Pittsburg, U.S.A.-(Assignees of Ackeren, J. van ; Koppers Building, Pittsburg, U.S.A.) Sept. 11, 1931, No. 25540. Convention date, Sept. 11, 1930. [Classes 51 (i) and 51 (ii).] In a twin-flued regenerative coke oven having beneath each heating-wall a transverse series of regenerator units some of which operate for inflow and others for outflow, leakage of gas into the outflow regenerators is prevented by providing passages, in communication with the atmosphere, in the partitions between units conveying fuel gas and waste gases. In the oven shown, in which the two flues of a pair are connected at both top and bottom to allow recirculation of a proportion of the waste gases, each regenerator unit 26 (with the exception of the end half-size units) is connected through ports 46 to two flues 23 of two adjacent parts, and each flue is connected to two regenerator units. Adjacent series of regenerator units are separated by transverse walls 29, Fig. 3, and in these walls are passages 30 in communication with the atmosphere. Similar passages 33, 35 are provided in the walls 32 between units conveying gas and waste gases, and between the rich gas ducts 15 and the regenerators. The passages 30, 33, 35 are connected and the passages 30 are extended both upwards and downwards by expansion joints 36 which are packed with rock wool. The end bracings of the oven comprise pairs of buck-stays 38 between the ovens, and more widely-spaced stays 42 at the regenerator portion of the structure. Specification 349,604 is referred to.
Patent GB-1039347-A (GB)
Title: Aluminum flux compositions
IPC: B23K35/36
Filed: 1963-06-27
Abstract: A flux composition for melting or fluxing with aluminium or an alloy containing at least 70% Al to prevent dross or slag formation comprises either (a) 20 - 35% NaCl, 50 - 70% CaCl2, 4 - 10% BaCl2 and 3 - 10% CaF2; or (b) 10 - 20% KCl, 55 - 75% CaCl2, 5 - 16% BaCl2 and 5 - 12% CaF2. A charge to a melt vessel preferably consists of 70 - 98% of chips of aluminium material and 2 - 30% of the above flux, being heated at temperatures up to 980 DEG C.
Patent GB-719119-A (GB)
Title: Improvements relating to windscreens and windows of vehicles
IPC: B60J1/06
Filed: 1952-10-14
Abstract: 719,119. Windscreens. AUSTER, Ltd., and SMALL, W. W. July 31, 1953 [Oct. 14, 1952], No. 25656/52. Class 20 (3) In a vehicle windscreen comprising a transparent panel 2 curved in a vertical direction with the concavity presented rearwardly and mounted in seatings or supports on a pan 6 to form a self-contained unit, the front edge of the pan fits substantially flush with the front surface of the vehicle body and the upper portion of the curved panel diverges rearwardly from said front edge. The panel does not project from the front of the pan. Specification 477,087, [Group XXV], is referred to.
Patent GB-172414-A (GB)
Title: Improvements in auto-tractors
IPC: B60P3/42
Filed: 1920-09-07
Abstract: 172,414. Schofield, G. L. Sept. 7, 1920. Frame components, applying and combining.- Apparatus for converting a pleasure vehicle into a tractor comprises a wheeled frame on which the vehicle is elevated, means being provided for driving the frame wheels from the wheels of the vehicle. The frame is made of angle members forming run-ways for the motor vehicle wheels connected to transverse members 8, 9 by single bolts only, to impart flexibility.
Patent GB-517107-A (GB)
Title: An improved method of and means for securing together the frame members of iron or steel erections, such as scaffolding, shuttering supports and the like
IPC: E04G7/26
Filed: 1938-09-03
Abstract: 517,107. Structural metal joints. MUIR, A. R. Sept. 3, 1938, No. 25834. [Class 20 (ii)] Structural members are joined together by opposed brokers which embrace the flanges of the members and are secured thereto by grub screws passing through the brackets, which are drawn together for clamping by a cross bolt, for connecting members end to end as shown in Figs. 1 and 3. The brackets 1 are provided with channels to receive the flanges 2 of the abutting structural members, and grub screws 3 pass through the brackets and press upon these flanges. Opposed brackets are connected by cross bolts 1b passing through flanges la on the brackets. The brackets may be of angle formation for connecting members at right angles, Fig. 4, each angle having a channel groove to receive the flanges of the members 8, 9 and grub screws 7; clamping plates 40 embrace the flanges of the member 9 and are clamped to the angle members by cross bolts. In a modification for this purpose as shown in Fig. 7 angle shaped brackets 15 and cross bolts 16 only are used. Joints for four and six structural members meeting together are also shown and described. In a further modification, Fig. 23, the brackets are provided with lips 60 which engage over the flange of one member and channel recesses 61 receive the flanges of the abutting bar, cross bolts 63 being used to draw the brackets together. For joining members obliquely the bracket portions 34, 35, Fig. 15, are pivoted and are provided with a bolt and slot connection and opposed brackets are joined together by cross bolts.
Patent GB-532625-A (GB)
Title: Multiple element magnetite electrode for electrolysis
IPC: C25B11/02
Filed: 1939-09-14
Abstract: 532,625. Electrodes. ALEMANNO, A. Sept. 14, 1939, No. 25850. Convention date, Sept. 9, 1938. [Class 41] A magnetite electrode consists of a number of superposed spaced tubular elements 1 mounted upon threaded rods 6 the upper and lower ends of which are respectively held in a porcelain cap 14 and a porcelain socket 8. The elements, the larger faces 2 of which are of concave form, are separated from one another and from the cap 14 and the socket by resilient packing rings 5 and are clamped in position by plates 12 and nuts 13 which are also employed to secure the cap in position, the socket being attached to the rods by a clamping plate 9 held by nuts 11. A copper connection strip 16, extending through a sleeve 15 cemented to the cap, is in contact with conducting rods 17 to which conducting strips 4, engaged between the inner surfaces of the elements 1 and copper lining layers 3 electrolytically deposited thereon, are welded.
Patent GB-904273-A (GB)
Title: Improvements in apparatus for conveying work through a series of treating receptacles
Inventor: CHILL CHARLES WILLIAM
IPC: B65G49/04
Filed: 1960-07-25
Abstract: 904,273. Step-by-step conveyers. UDYLITE RESEARCH CORPORATION. July 25, 1960, No. 25864/60. Class 78 (1). Article carriers 36 are traversed through a succession of treatment tanks 14 by a conveyer comprising stationary rails 38, rail sections 40 mounted on a vertically-movable chassis 16, delayed immersion rail section 42 adapted to be lowered independently of the chassis 16, main reciprocating dogs 51, 52a mounted on chassis 16 and arranged to move the carriers step-bystep along rails 38 and on to section 40 when it is lowered, and an auxiliary reciprocating dog 52b which transfers carriers from section 40 to section 42 when these sections are in their upper position and which is retractable to a position clear of section 42. Dog 52b is carried by the piston-rod 104 of a thrustor 96 supported through brackets 98 and slidable bearing 110, 112 on one of the bars 48 which carry dogs 51, 52a. Bars 48, 48a (Fig. 3) are reciprocated by connecting-rods 64, 86 connected to cranks 78, 82 secured to a shaft 66 which is oscillated by a thrustor 58 and crank 70, and members 92 secured to cranks 78, 82 transfer the carriers around the curved end portions of rails 38.
Patent GB-699187-A (GB)
Title: Improvements in or relating to teat cups for milking machines
IPC: A01J5/08
Filed: 1950-10-24
Abstract: 699,187. Cow-milkers. ALFA-LAVAL CO.. Ltd.. and CLARK. T. L. Oct. 24.1951 [Oct. 24, 1950], No. 25874/50. Class 84 The lower end of a flexible tubular liner 3 is detachably secured on to the upper end of the milk tube 6 by turning the lower end of the liner back on itself to form an internal constriction which prevents an enlarged head 5 formed integrally on the milk-tube from being , pulled out from the liner so that the assembly can be positioned in the shell of a teat-cup and tensioned by pulling on the milk tube. A projection 7 on the milk tube engages the teat-cup to retain the liner in a stretched condition. A rigid ring 10 prevents the milk tube head from contracting. If desired, the liner can be turned back on itself twice. Specification 669,489 is referred to.
Patent GB-697939-A (GB)
Title: Improvements in and relating to building structures
Inventor: BRUNTON BERNARD
IPC: E04B1/61
Filed: 1951-11-05
Abstract: 697,939. Wall panels; carpenter's joints, UNI-SECO. Ltd. Nov. 5, 1951, No. 25881/51. Classes 20(ii), 20(iv) and 87(i) Wall panels, comprising a core of wood wool and cement 1, a peripheral wooden frame 2, and asbestos facing sheets 3, are provided along at least one edge with projections 4 offset from the centre line of the frame, adjacent panels being secured together, in halving joint relation, by screws 5. Cover strips 6 are nailed on each face of the joint. Each flange 4 is chamfered at 8 to provide channels 9 which, in the case of external wall surfaces, can be filled with a sealing compound 10, e.g. mastic. When a panel 11, Fig. 2 is secured e.g. to a door post 15, the joint is formed between. the projection 4 and a fillet 13, the latter being either formed as an integral part of the post or, as a separate piece screwed on to it. The latter type of construction is used when joining panels to uprights of L, T or X cross-section.
Patent GB-504380-A (GB)
Title: A new or improved means for joining and securing together two articles such as armour-plates, machine-gun and other framework and parts of mechanical devices
IPC: F16B5/00
Filed: 1937-09-24
Abstract: 504,380. Dowels; armour. HUMPHRIS, F. Sept. 24, 1937, No. 25886. [Class 89 (ii)] [Also in Group XXXIII] Two articles a, b such as two sections of armour plate, are joined by connectors c, with bevelled faces e<1>, forced over corresponding faces d<1> by wedges g. In modifications more than one bevelled face is provided on each connector. In a further modification, Fig. 16, the connector c is formed with a stem c<2> this being provided with notches to receive wedges g. In other modifications, Fig. 18, the connector c has a slight taper along its length and is tightened by driving it axially.
Patent GB-242259-A (GB)
Title: An improved evaporating process and apparatus therefor
IPC: B01D3/34
Filed: 1925-10-16
Abstract: 242,259. Soc. GÚnÚrale d'Evaporation ProcÚdÚs Prache et Bouillon. Oct. 31, 1924, [Convention date]. Evaporating and distilling plant and processes. - In evaporating liquid, air or gas is circulated through the heated liquid, and through a condenser, the hot condensate from which is used to heat the liquid. As shown in Fig. 1, the liquid to be evaporated is circulated by a pump 15 through a tubular heat exchanger 18 and a steam hot gas or electric heater 20 to the upper end of a column 1 containing coke, metal rings, metal spirals, iron shavings &c., and is returned from the base of the column to the pump 15. Fresh liquid may be supplied from a tank 12 by a pipe 13 and concentrated liquid may be removed by a pipe 30. Air drawn by a pump 4 passes upwards through the column 1, through a pipe 7 and upwards through a second column 9 and returns by a pipe 11 to the pipe 4. The hot condensate from the base of the column 9 is pumped by a pump 24 through the heat-exchanger 18, and passes into the top of the column 9 by a pipe 10. Surplus condensate may be withdrawn through a pipe 28. In a modification, the hot condensate may be used to evaporate a secondary fluid, such as ammonia, sulphur dioxide, &c., the vapour from which is compressed into a coil immersed in the liquid to be evaporated. The vapour becomes liquefied and is returned to the first coil. In place of the column 1, a flat evaporating- vessel through which liquid flows in,one direction, and air or gas passes over its surface in the opposite direction may be used. Alternately the evaporation may be effected in a circular vessel having a conical bottom over which rotary blades pass to sweep crystals into a side pocket. The vessel is closed by a cover having depending baffles to form a circuitous course for the air. The liquid may be heated by immersion of a coil which receives compressed vapours from a secondary fluid used for transferring heat from the condensate. In drying pasty materials, they are spread on a rotary drum contained in a casing through which air or gas circulates, and heated by the compressed secondary vapours admitted to its interior.