baber/WOPTO huggingface dataset:
Patent GB-323196-A (GB)
Title: Improvements in or relating to air heating devices utilising exhaust gases from internal combustion engines
IPC: F01N5/00
Filed: 1928-09-21
Abstract: 323,196. Schlawe, M., Hornkohl, T.,and Meyer, K. Sept. 21, 1928. Heating charge. - Air-heating apparatus of the type in which the heating is effected by the exhaust gases, comprises a chamber a of larger diameter than, and inserted between sections f, g of the exhaust pipe proper. Within the chamber is a device adapted to cause the exhaust gases to flow in a helical path and to sweep over the interior surface of the chamber. The device may take the form of (1) a rotating worm, (2) two fixed worms b, Fig. 1, of opposite hand separated by constricting cones n, (3) semi-circular discs displaced relatively to one another, (4) apertured discs with the apertures therein of various shapes, Figs. 5 - - 8 (not shown), and displaced relatively to one another, and (5) two or more perforated intersecting longitudinal plates, Figs. 10-12 (not shown), the resulting sectors of which are divided by transverse unperforated plates so disposed as to produce the helical path. The baffling devices together with perforated discs d<1> at each end of the chamber a, are mounted on a tube s and may be withdrawn as a unit. The air is heated in a chamber c surrounding the chamber. a and subdivided by heat-conducting partitions into a number of triangular compartments, Fig. 2. Thechamber c is surrounded by heat-insulating material r enclosed in a sheet metal jacket w. Air enters at p, flows in the direction of the arrows and leaves at q. Welded joints are so arranged that, if fractured, the exhaust escapes into the atmosphere. The forward joint Is protected against cold air currents by a shield v. The helical baffle may be screwed into the chamber a. Moisture may be removed by inclining the chamber a and providing a valve at the lowest point thereof.
Patent GB-1426360-A (GB)
Title: Apparatus for producing corrugated boards
IPC: B31F1/30
Filed: 1973-06-07
Abstract: 1426360 Papermaking apparatus; corrugating paper ELDA AG 7 June 1973 [8 June 1972] 27257/73 Headings D1S and D2A Apparatus for corrugating cardboard sheets 2, e.g. fed from a cylinder machine (not shown) while still wet by a transverse delivery 5, roller train 3 and idler rollers 6, comprises a tunnel drier 10 and intermeshing conveyor and moulding belts 8, 9, each belt comprising a series of interconnected rollers preferably driven by chains (not shown), the conveyor belt 8 forming corrugations in the sheets upstream of the drier 10 and the sheets being fed to the apparatus such that the corrugations run in the main fibre direction of the sheets. The speed of the sheets between the belts 8, 9 is preferably lower than the speed at which the sheets are fed to the corrugating apparatus.
Patent GB-1385730-A (GB)
Title: Apparatus for diffusing dopants into semiconductor wafers
IPC: H01L21/00
Filed: 1972-06-12
Abstract: 1385730 Manufacture of semi-conductor devices SIEMENS AG 12 June 1972 [7 July 1971 (3)] 27301/72 Heading H1K A fixture for holding a number of semiconductor wafers in a furnace during a diffusion or surface oxidation process has separate semiconductor members in which facing aligned sets of slots and/or grooves are formed to hold the edges of the wafers. A typical fixture consists of a U-section quartz channel member with spaced recesses in its upper edges in which are located the ends of support members having confronting slots in their edges overlying grooves formed in a base-plate disposed in the bottom of the channel. Alternatively a series of separate base-plates may be used which are positively located between lateral ridges on the channel bottom. Another fixture consists of two grooved plates fitted into grooves in a base-plate or in a pair of spaced base-plates to form a channel with grooved side walls. The plates may be flat or inwardly or outwardly curved and may be so arranged with appropriately varying groove depths to give a tapered channel to improve gas flow. A further fixture comprises slotted parttubular members 93 (Fig. 8) the edges of which engage grooves in the base 92. In all cases at least the parts of the fixture which contact the wafers and preferably the entire fixture are of silicon, germanium, silicon carbide, boron nitride or an AIIIBV or AIIBVI compound, and preferably of the same material as the wafers to be treated. Curved parts are fabricated out of hollow cylinders formed by deposition on a graphite rod by pyrolytic reaction of hydrogen and a compound of the semi-conductor. In use, in which the fixture is disposed in a radiation or induction heated tube, e.g. of quartz or semiconductor, the wafers are so dimensioned that the slots or grooves hold them at or above their centres of gravity to reduce bending stresses.
Patent GB-189303-A (GB)
Title: An improved photographic printing frame
IPC: G03B27/02
Filed: 1921-10-15
Abstract: 189,303. McClean, H., and Morley, W. H. U. Oct. 15, 1921. Contact printing frames. - A printing frame, more especially for toy negatives, consists of a sheet of glass 1 having a fixed pocket and a movable flap 3 on one side to hold the negative and paper 6, 5 against the glass. A clip may be slipped over the upper edge to hold the flap 3 down. The pocket may be formed of a sheet of paper 2, with a framed opening 8 on the front of the glass plate, the cardboard flap being attached to the paper at the other end, and the pocket reinforced by the cardboard piece 4.
Patent GB-406400-A (GB)
Title: Improvements in or relating to dart boards
IPC: F41J3/00
Filed: 1932-10-03
Abstract: 406,400. Dart boards. BROWN, M. DAVIS-, 26, Richmond Park Road, Kingstonon-Thames. Oct. 3, 1932, Nos. 27397 and 28327. [Class 132 (iii).] In a dart board, the zone marking wires 2 are of triangular, square or diamond shaped cross section, and mounted on the board (a) by cementing, (b) by pins 3, Figs. 1, 3, rigid with the wires, (c) by pins 5, Fig. 2, passing through the wires and so shaped as to form continuous surfaces with the exposed faces of the wires 2, (d) by projections 6, Fig. 4, and (e) by sliding the wires in undercut grooves 7, Fig. 5. Water or absorbent material is housed in holes 9, Fig. 8, around the periphery of the board to prevent shrinking thereof. Specification 381,844 is referred to.
Patent GB-1433636-A (GB)
Title: Extendible rail eg for curtains
IPC: A47H1/022
Filed: 1973-06-08
Abstract: 1433636 Adjustable curtain rails GELSON INDUSTRIES (UK) Ltd 7 June 1974 [8 June 1973] 27398/73 Heading E1E A telescopic curtain rail 1, 2 adapted to be jammed between opposed surfaces and readily extended in length but not contracted comprises a locking mechanism including a cam lift 6 pivoted relative to the inner member 2 so that it can engage against the inner surface of the outer member 1. The cam lift 6 is pivoted at 7 to a locking member 4 which is connected by a helical spring to the member 2; the cam lift being biassed by a hair spring 8.
Patent GB-838490-A (GB)
Title: Improvements relating to the ignition of gas-generating charges in small reaction motors
Inventor: MANSOUR JOSEPH MAIME
IPC: F02K9/95
Filed: 1955-03-23
Abstract: 838,490. Rocket motors for model aircraft and other jet-propelled devices. WILMOT MANSOUR & CO. Ltd. June 22, 1956 [March 23, 1955], No. 27552/54. Class 9(2) A rocket motor comprises a casing 1 on to which is screwed a cap 3 having a jet orifice 4, the gas-producing charge 5 being ignited by a coiled fuze 8 when the fuze 8 is ignited by heat transmitted through the wall of the casing 1. The free end of the fuze 8 is led through a gauze disc 9 into a hollow [projection 10 closed by a thin disc 11 held by a collar 12, which with a packing ring 13 forms a gas-tight seal. A stay 14 holds the fuze 8 against the disc 11 which is in contact with an external fuze 15 extending out of a tube 16 fitted over the collar 12. A spring clip 17 having frictional engagement in the tube 16 holds the fuze 15 against the disc, which is of high thermal conductivity, e.g. nickel chromium alloy. The gases are filtered by a gauze disc 6 between the charge and the orifice 4. Fuze 8 may be copper wire with a highly inflammable plastic coating. Fig. 3 shows a motor having two jet orifices 19, 20 in caps screwed on exhaust pipes 23, 24 leading from the combustion chamber 25. The coiled fuze 28 held in place by gauze disc 29 extends through the disc 29 and a compression spring 34 holding the fuze in contact with a heat-transmitting disc 31 against the outer face of which a fuze 35 is packed. In another modification the jet orifice is placed eccentrically in an end cap which has a portion of reduced thickness providing the heat-transmitting means for the fuze. The heat-transmitting discs also provide a safety device, which can rupture if excessive pressure occurs in the motor. In Fig. 5, a collar 45 holds in position an end plate 50 with an eccentric orifice 53 aligned with a hollow boss 52 surmounted by a fine gauge filter 55. A tube 61 of high thermal conductivity and thermally insulated is mounted in the plate 50, the coiled fuze 48 having an end 49 packed into the tube 61. The external fuze 65 is wound around the tube 61 and secured by a gauze sleeve 66 and a rupture disc 67 closes the tube 61. Specifications 642,689, 688,838 and 712,551 are referred to.
Patent GB-172171-A (GB)
Title: Improved manufacture of reinforced concrete bodies such as columns or the like
IPC: E04C3/34
Filed: 1920-09-28
Abstract: 172,171. Bõrlin, W. E. Sept. 28, 1920. Columns or the like are formed by casting concrete 3 in a perforated metal cylinder or prism 1 so that the concrete exudes from the perforations 2. An external coating 5 of cement, concrete piping, or artificial stone may be applied before or after casting.
Patent GB-284769-A (GB)
Title: Improvements in and relating to photographic washing apparatus
IPC: G03D3/02
Filed: 1926-11-03
Abstract: 284,769. Wood, R. Nov. 3, 1926. Washing tanks.-A portable washing apparatus comprises a tank for the plates or prints and a self-contained reservoir supported immediately above the tank the outlet from the tank being at the bottom and the supply from the reservoir to the top of the tank being just sufficient to keep the tank full as long as the supply lasts. The tank b may be integral with the reservoir a as in Fig. 1, or it may be independent, and a water seal may be provided to stop the flow from the reservoir if the water in the tank rises above a prescribed level. In one such arrangement the feed fom the closed reservoir a, Fig. 7, comprises a tube f<1> passing through a plug f, and dipping sufficiently into the tank b to maintain the required level.
Patent GB-983326-A (GB)
Title: Improvements in or relating to apparatus for filling containers
IPC: B67C3/26
Filed: 1962-07-18
Abstract: 983,326. Filling containers. A. NAECKER, E. ORTMANN, A.-L. SEEMANN, and N. BALTES, [trading as ORTMANN & HERBST]. July 18, 1962 [July 20, 1961; Dec. 23, 1961], No. 27671/62. Heading B8T. A counter-pressure filling-head comprises an outlet tube 8 enabling air to be discharged from a bottle 5, a tube 9 secured to the tube 8, a tube 11 having a flange 12 slidable on the tube 8 and provided with openings 16, and an aperture 14 in a bottom member 13 which may be closed by a ball 10. A valve element 4a is operated mechanically to admit liquid through a passage 3 into the bottle from a vessel 2. A venting valve 3b enables the interior of the bottle to be connected to atmosphere. A gas valve is provided at 7a, and a filter at 2a. Operation.-After a bottle is applied to the filling head, valve 7a is opened to equalize pressure in the vessel 2 and container 5. The aperture 14 being closed by the ball 10, the gas pressure forces down the valve members 11-13 against the action of a spring 15, thereby forming a gap at 18, Fig. 3. Gas enters the bottle through the openings 16. The spring 15 returns the valve members 11-13 when pressure in the bottle equals that in the vessel 2, thereby closing the gap at 18. Valve element 4a is opened to fill liquid into the bottle, the displaced gas unseating the ball 10 sufficiently to escape via the tube 8 as shown in Fig. 1. As the liquid reaches the level of the aperture 14, a gas cushion is formed in the bottle neck, and liquid enters the aperture 14, so accelerating the escaping gas and blowing the ball 10 to a position, Fig. 2 (not shown), where it closes the lower end of the tube 8. The gas escape being blocked, the liquid supply to the bottle stops. Valve element 4a is raised to close the passage 3 and the ball 10 falls on to the aperture 14. The valve 3b is opened, thereby venting the bottle. The higher pressure in the tube 8 causes the valve members 11-13 to be lowered and clear the valve of gas and residual liquid through the apertures 16. The bottle may then be replaced. Modifications.-Two modifications of the lower valve elements, Figs. 4-7 and Figs. 8- 11, respectively (not shown), are described.
Patent GB-616645-A (GB)
Title: Synthetic rubber
IPC: C08F236/04
Filed: 1946-09-16
Abstract: Synthetic rubber is produced by polymerizing a mixture of 60-80 per cent by weight of butadiene-1,3, 5-25 per cent of styrene and 5-25 per cent of acrylonitrile in aqueous emulsion in the presence of a stabilizer such as sodium stearate, sodium lauryl sulphate, sulphonated hydrocarbons or other compounds containing both hydrophilic and hydrophobic radicals.  Catalysts, e.g. peroxides, perborates, persulphates, and modifiers such as acetaldehyde, carbon tetrachloride and hydrocyanic acid salts may be present.  The mass is heated preferably between 20 DEG  and 60 DEG  C. and the latex may be coagulated in the usual way.  Vulcanizers, accelerators, antioxidants and other modifying agents, e.g. lauryl mercaptan, may be mixed with the copolymer which may be fabricated, e.g. into sheets, and cured.
Patent GB-1197015-A (GB)
Title: A Rotary Mechanical Oscillator particularly for use in a Timepiece
IPC: G04B17/04
Filed: 1968-06-11
Abstract: 1,197,015. Clocks and watches. FABRIQUES MOVADO. June 11, 1968 [June 27, 1967; May 3, 1968], No.27702/68. Heading G3T. An electro-magnetically energized rotary mechanical oscillator for driving a timepiece comprises an oscillating body 2 mounted on an outward extension 14 of a support 3 by means of curved springs 4<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP>, 7<SP>1</SP> each having a width large compared with its thickness. A further oscillating body 1 Fig. 1 (not shown) is similarly mounted on the extension 14 and the two oscillate in phase opposition. Each body carries magnets 17 forming part of a known electromagnetic device for maintaining oscillations, and a pawl 10 on the spring 7<SP>1</SP> drives a ratchet wheel (not shown). In a further embodiment two oscillating bodies are supported by springs, each formed with a double bend, and mounted on a resilient member which may have a bimetallic structure to compensate few changes of the oscillation frequency with temperature.
Patent GB-481492-A (GB)
Title: Improvements in or relating to the valve mechanism of two-stroke internal combustion engines
IPC: F01L5/04
Filed: 1937-10-13
Abstract: 481,492. Valve gear. MICKELSEN, V., and REBBECK, F. E. Oct. 13, 1937, No. 27805. [Class 7 (vi)] A piston valve 2 controlling exhaust ports 3 in an extension 11 of the cylinder of a twostroke engine is held in its innermost position as shown, during the latter part of the compression stroke and the first part of the working stroke, by a slide 6 actuated by a grooved cam 5, the cylinder pressure acting on the valve being taken up by guides 9 for the slide. At a certain point on the working stroke, when the cylinder pressure has considerably diminished, the valve is forced outwards by the cylinder pressure into a recess 8 in the slide 6.
Patent GB-823893-A (GB)
Title: Apparatus for use with trawling nets
IPC: A01K75/00
Filed: 1957-09-03
Abstract: 823,893. Trawl fishing gear. BULMAHN, A. Sept. 3, 1957 [Sept. 3, 1956], No. 27825/57. Class 48. [Also in Groups XXV and XXX] Apparatus for use when trawling comprises a centrally marked line 9 connected to symmetrical points on both sides of the trawling gear and a marker clamp 10 slidable on the line 9 and provided with a delay action device preventing the clamp from gripping the line for a predetermined period. The marker clamp 10 is attached to a float 23 which due to flow resistance drags the marker clamp 10 to the rearmost part of the line 9 and the delay action device ensures that the clamp does not grip the line until trawling has commenced. When at the end of a trawling operation the net is raised on to the trawler the position of the marker clamp 10 relative to the central mark on the line indicates whether the net had been towed with its mouth at right angles or oblique to the direction of towing. The line 9 may be attached to the headline 7 or to the otter-boards 3, 4. The clamp consists of a coil spring 12 having arms 13, 14 provided with clamping jaws 15, 16 and bent portions 17, 18 preventing escape of the line 9 when the jaws are open. The lower jaw 16 supports a cylinder 19 into which a piece of rock salt 24 is inserted and the upper jaw 15 has a small plate 22 which is adapted to enter the cylinder to abut against the rock salt. As the rock salt dissolves the plate 22 moves into the cylinder until the jaws grip the line 9. In a modified clamp the jaws are held apart by a bolt which is gradually drawn back by clockwork. In a further modified clamp one of the jaws is moved through reduction gear by a propeller driven by the water. The reduction gear may be braked by a rotating vane.
Patent GB-1032725-A (GB)
Title: Improvements in or relating to a process for separating liquid mixtures into liquid and slimy components
IPC: C02F1/52
Filed: 1963-07-15
Abstract: Slimes and emulsions are flocculated by the addition of 5 to 25% solution of ferrous sulphate in hydrochloric acid followed by adjustment of the pH to 7.5 to 9 with sodium hydroxide.  Nonionic flocculating agents such as polyacrylamide may be added as may be binders and fillers such as gypsum, cement, lime and wood flour.
Patent GB-661152-A (GB)
Title: Improvements in electric warming or heating elements
IPC: H05B3/78
Filed: 1949-11-01
Abstract: An electric heating element, having a resistivity lower than 103 ohms per cm.3 is made by mixing plasticized polyvinyl chloride or a plasticized copolymer containing vinyl chloride, with carbon black of the type which is substantially not wetted by the material but forms a coherent skeleton therewithin of such a nature that upon deformation the coherence between the carbon black particles is not lost so that the resistivity of the material remains unaltered.  The carbon black comprises "conductive channel black," "very fine furnace black," or "conductive furnace black" in contradistinction to ordinary carbon black.  Pigments, for example, common carbon black or aluminium powder may be added to the material for the purposes of colouring or heat radiation control.
Patent GB-1236646-A (GB)
Title: Working-up of gaseous reaction mixtures resulting from a chlorination of methyl chloride
IPC: C07C19/01
Filed: 1968-06-12
Abstract: 1,236,646. Separating gaseous chlorinated hydrocarbon mixtures. FARBWERKE HOECHST A.G. 12 June, 1968 [15 June, 1967], No. 27937/68. Addition to 1,172,009. Heading B1L. [Also in Division C2] The gaseous reaction mixture from the chlorination of methyl chloride which comprises unreacted methyl chloride, hydrogen chloride and higher chlorinated hydrocarbons e.g. methylene chloride, chloroform and carbon tetrachloride, is diluted with an inert gas having a boiling point not greater than that of hydrogen chloride, e.g. nitrogen, and is then separated by washing the mixture with liquid methyl chloride to obtain a liquid phase containing the higher chlorinated products. As shown, the gaseous reaction mixture containing nitrogen from reactor A passes by line 1 to column C where it ascends in counterflow to methyl chloride wash fluid entering by line 8. Generally, column C is maintained at 1-35 atoms. gauge and -50 to 20‹C. The bottom product containing methyl chloride and higher chlorinated hydrocarbons passes by line 3 to column F where it is frictionated. Overhead gas from column C passes by line 2 to column D where it ascends in counterflow to HCI-free methyl chloride fed by line 7. The overhead of HC1, N 2  and methyl chloride is recycled to reactor A by line 4. Bottom product of HCl-containing methyl chloride from column D is partly returned by line 8 to column C, but most passes by line 9 to column E where it is separated into an overhead of pure HCI gas and a bottom product of pure methyl chloride which is recycled by line 7 to column D; part may be fed by line 10 to line 3. In a modification, the inert gas may comprise only the HCI gas necessarily present in the effluent from reactor A.
Patent GB-1191114-A (GB)
Title: Cold Rolling of Copper and Copper Alloys
Inventor: BHARUCHA NANABHAI RUSTOMJI
IPC: C10M173/00
Filed: 1967-06-16
Abstract: 1,191,114. Lubricant for cold-rolling copper. BRITISH NON-FERROUS METALS RESEARCH ASSOCIATION. 13 June, 1968 [16 June, 1967], No. 27986/67. Heading C5F. A lubricant for cold-rolling copper comprises a one-phase aqueous solution of an ampholytic surface-active compound of the formula or an alkali metal or ammonium salt thereof, wherein R is H or C 1 -C 5  alkyl and R<SP>1</SP> is a C 8 -C 22  aliphatic radical which may contain one or more ethylenic double bonds. A preferred surface-active compound is N-coco beta-amino butyric acid (where coco represents the mixture of aliphatic radicals in the fatty acids of coconut oil) which may be used in amount 0À1-1À0% by wt. The water used is preferably deionized or soft water. The solution may contain corrosion inhibitors, e.g. NaNO 2  or an antifoaming agent, e.g. an organo-silicone polymer.
Patent GB-883537-A (GB)
Title: Modulating gas flow regulator
IPC: G05D23/24
Filed: 1959-08-17
Abstract: 883,537. Automatic temperature-control systems. MAXITROL CO. Aug. 17, 1959 [Aug. 21, 1958; July 22, 1959], No. 28011/59. Class 38 (4). [Also in Group XXIX] A gas-regulating valve 13 for a furnace 16 heating a room 15 has the loading at 24 on a valve operating diaphragm 25 exposed to outlet pressure at 27 varied by an armature 29 energized by coil 28, the current in which is reponsive to room temperature detected by thermistor 59 acting through an amplifier having transistors 38, 43. On reopening of valve 13, a short, initial full gas flow may be permitted by resistance 69 reducing the current in coil 28, resistance 69 then being by-passed by thermostatic switch 71 heated by resistance 72. A thyratron replaces the transistors in another embodiment. Bi-metal switch 21 in the room closes a gas cut-off valve 19 should the temperature rise unduly.