baber/WOPTO huggingface dataset:
Patent GB-1062263-A (GB)
Title: Improvements in apparatus for mixing liquids
Inventor: PAGDIN BRIAN COLIN
IPC: B01F15/02
Filed: 1963-05-29
Abstract: 1,062,263. Mixing liquids in flow. LAYCOCK ENGINEERING Ltd. May 26, 1964 [May 29, 1963], No. 21564/63. Heading B1C. [Also in Division F1] A venturi mixing apparatus for liquids incorporates between the inlet 16 and the throat 19 of the venturi a device for maintaining constant the rate of flow of the primary liquid irrespective of its supply pressure. As shown in Fig. 1 the device is that of Specification 804,705 comprising a resilient valve member 36 cooperating with a grooved seat 34; increase of pressure deforms the member 36 to fit more closely to the seat. Secondary liquid is supplied to the venturi throat by passages 27, 24, 23, 21, 18; it is regulated by a needle valve 28 and controlled by a shut-off slide valve 22 which in the closed position shown in Fig. 2 vents the passage 18 to atmosphere through a clearance 42 so that any residual liquid in the passage 18 is immediately discharged. A non-return ball valve 37 vents the apparatus to atmosphere when the primary flow ceases, to prevent backflow into the mains. The apparatus may be secured to a faucet by the resilient collar and clip 12, 14, 15.
Patent GB-983383-A (GB)
Title: Night latches and like spring locks
IPC: E05C1/16
Filed: 1963-05-30
Abstract: 983,383. Latches. J. LEGGE & CO. Ltd., B. PENNINGS, and D. B. LEGGE. Dec. 31, 1963 [May 30, 1963], No. 21624/63. Heading E2A. In a night latch, the followers which are mounted for rotation about the same axis and on opposite ends of the bolt lath, are adapted to operate upon the latter in the same plane and the bolt lath is adapted to present the same abutment or abutments to both followers. As shown the bolt 12 is loaded by a spring 17, and is provided with a plate lath 13 which affords a bar portion 22 constituting abutments for flanges 23, 24 of a pair of concentrically arranged followers 25, 26, operable respectively to withdraw the bolt by a lever handle 27 or by a key-operated cylinder lock (not shown).
Patent GB-1038793-A (GB)
Title: Hammer toe correction device
IPC: A61F5/01
Filed: 1964-05-26
Abstract: 1,038,793. Toe pads. SCHOLL MFG. CO. Ltd. May 26,1964 [June 6, 1963], No. 21764/64. Heading A5R. A correcting device for hammer toes comprises upper and lower pads 1, 5 to be spaced apart about the toe and each being wedge shaped, and means, such as a band 9, to hold the pads in position. As described the lower pad of sponge rubber, felt, or a synthetic foam, is covered with a leather or a plastics sheet 4, and the upper pad 5 is covered in soft leather 6. The band 9 on the pad 5 is initially separate from the pad 1 and may be provided on the inside with a protected pressuresensitive adhesive, the pad 1 being stuck to the band after adjustment to the desired position on the toe.
Patent GB-300934-A (GB)
Title: Improvements in or relating to sleeve valve internal combustion engines
IPC: F01L5/10
Filed: 1927-08-18
Abstract: 300,934. Ricardo, H. R. Aug. 18, 1927. Cylinders, combustion chambers of.-In engines provided with sleeve valves having combined oscillating and reciprocating move. ment, rotation of the incoming charge is impeded by forming the combustion chamber of non-circular cross-section. When the combustion chamber is located below the cylinder head E, Fig. 1, one or more projections H<1> may be formed on the piston, or cylinder head, or both. The projections stop short of the sides of the piston, so as to leave small spaces. When the combustion chamber is located within the cvlinder head, it may be made lobed in cross-section, for example as shown at E<1>, Fig. 4, or polygonal. In some cases, a combustion chamber of the later type may be used in conjunction with a piston having one or more projections.
Patent GB-330170-A (GB)
Title: Improved method of and device for grinding files
IPC: B24B3/60
Filed: 1929-07-16
Abstract: 330,170. Lindner, H. July 16, 1929. File cutting.-Files have the teeth formed thereon by a grinding-wheel 3 having thereon cutting-profiles 4 corresponding to' the shape of the teeth. The wheel may be of the same length as the file blank 1, which is passed beneath the wheel; the number of profiles on the wheel may be such as to cut all of the teeth on one passage of the blank, or to cut alternate teeth on one passage. The wheel may be of conical form to produce undercut teeth, Fig. 6, or may be of concave form with a straight portion and a curved portion so as to cut bowed or tapered files. The plane surface of the profiled parts of the wheel may be inclined to the direction of movement of the blank during grinding. The wheels are trued by a profiled roller 6 of tungsten, cobalt alloy, &c., and in the case of the conical wheel, the trueing roller is conical and is in several independently rotatable sections.
Patent GB-953486-A (GB)
Title: Process for the microbiological oxidation of steroids
IPC: C12P33/08
Filed: 1962-06-06
Abstract: 11-Unsubstituted D  4-3, 20-dioxo-16a -alkyl-pregnene compounds are 11b -hydroxylated by the action of enzymes from fungi of the species Mucor griseocyanus.  The starting steroid preferably has the formula: <FORM:0953486/C2/1> (wherein X is chlorine or fluorine, R1 is hydrogen or halogen and R2 is a free or functionally converted hydroxyl group) or is a corresponding 1, 2-dehydro compound, although general reference is also made to starting materials containing free or functionally converted hydroxyl, oxo or carboxyl groups, more especially hydroxyl groups in positions 17 or 21, halogen atoms, particularly at position 6, and hydrocarbon residues, such as methyl groups at positions 1, 2 or 6.  As functional derivatives, reference is made to ethers, esters, ketals, enol ethers, enol esters, enamines, hydrazones, oximes and semicarbazones. Reference is also made to oxo and carboxyl groups at position 18.  The process is effected under aerobic conditions with a growing culture of the mould, either in a surface culture or submersed, e.g. the deep-tank method.  Alternatively the active enzymes are isolated from the growing culture before use.  An example is given.
Patent GB-1246202-A (GB)
Title: Improvements relating to the modulation of light
Inventor: COURTENS ERIC-LEON
IPC: G02F1/35
Filed: 1969-04-30
Abstract: 1,246,202. Modulating light. INTERNATIONAL BUSINESS MACHINES CORP. 30 April, 1969 [22 May, 1968], No. 21913/69. Heading H4F. The plane of polarization of coherent light from a source 3 is variably rotated by passing the light through an optically resonant medium 5 to cause self induced transparency, i.e. the phenomenon whereby a normally opaque medium becomes transparent to coherent light pulses having an electrical field strength above a threshold value, and causing a varying axial magnetic field to act on the light within the medium by way of an anomalously large Faraday effect. In the preferred embodiment, light pulsed by a modulator 4, e.g. a Pockels cell, and microwave pulses from a generator 2 are supplied synchronously to the medium 5 by means of a master oscillator 1. The group velocity of the microwave pulses is matched to the propagation rate of the light pulses through the medium, e.g. by feeding them to a slow wave helical structure. P.C.M. information is supplied to generator 2 and a polarization analyser may be placed after the medium 5 to intensity modulate the light. The source 3 may be, e.g. a solid state or gas laser, a parametric light oscillator or a giant pulse laser and may produce plane polarized light inherently, e.g. using Brewster windows, or incorporate a polarizing plate. Examples given are of a CO 2  laser with SF 6  as the medium 5, and a ruby laser 3 at liquid nitrogen temperatures with a ruby medium 5 at liquid helium temperatures.
Patent GB-929153-A (GB)
Title: Improvements in or relating to magnetic tape reading and writing apparatus
IPC: G11B15/58
Filed: 1961-06-16
Abstract: 929,153. Control of several A.C. motors. COMPAGNIE DES MACHINES BULL. June 16, 1961 [June 22, 1960], No. 21931/61. Class 38 (3). [Also in Groups XXXV and XXXVIII] A magnetic tape 2 is driven by capstans 3, 4, to pass under a magnetic head 5 from a supply reel 6 to a take-up reel 7 each coupled to an electric motor. The tape is formed into loops lodged in depression columns 10, 11, having apertures 12 for the removal of air. The head is mounted on a rocker linked with an electromagnetic plunger for retracting the head from the tape. A partial vacuum is formed under the tape at the capstans 3 or 4 under the control of spring-biased valves which are actuated electromagnetically. Light sources RL1, RL2, co-operate with photo-cells RC1, RC2, for sensing the position of the tape during recording, reproducing and re-winding operations. Cells C1, C2 associated with sources L1, L2, sense the tape-position during automatic downward movement at low speed, whilst cell C3 cooperates with source L3 for sensing the tapeposition during automatic low-speed upward movement. Each of the reel motors have twophase windings 75, 76, and 77, 78 and, for normal operation, the windings 76, 78 are controlled from terminals 67, 68 by the cells RC1, RC2 to maintain the loop-lengths constant. For low-speed operations the reels are driven in opposite directions to one another, the relays 71, 72 being de-energized and relay 55 energized so that windings 75, 77 receive reduced voltage from terminals 48, 49. During descent of the tape, windings 76, 78 receive reduced voltage from terminals 64, 65 the takeup motor rotating clockwise and the supply motor anticlockwise. During automatic upward movement of the tape, the relay 79 is energized so that the supply-reel rotates clockwise and the take-up reel anticlockwise. Relay 63 controls the positioning of the head which is retracted during the automatic downward and upward movements of the tape.
Patent GB-1523087-A (GB)
Title: Electrolyte-cathode assembly for a fuel cell
IPC: H01M8/12
Filed: 1977-05-24
Abstract: 1523087 Solid electrolyte-cathode assemblies for fuel cells COMPAGNIE FRANCAISE DE RAFFINAGE 24 May 1977 [28 May 1976] 21939/77 Heading H1B A solid electrolyte-cathode assembly for a fuel cell comprises a layer of electrolyte, e.g. ZrO 2 , coated with a layer of a mixture of doped In 2 O 3  and ceramic, e.g. 90 mole per cent ZrO 2  and 10 mole per cent Yb 2 O 3 , coated with a layer of ceramic material, e.g. ZrO 2  with Yb 2 O 3  and UO 2 .
Patent GB-934237-A (GB)
Title: Improvements relating to cutter picks for mining coal and other minerals and to holders and securing means for such picks
Inventor: LLOYD JOHN DALE
IPC: E21C35/19
Filed: 1961-06-17
Abstract: 934,237. Mineral-mining picks. MAVOR & COULSON Ltd. June 15, 1962 [June 17, 1961], No. 21970/61. Class 68 (1). To improve of the securing of a pick 21 in a pick box 10, the box 10 is provided with a pick and wedge-receiving opening having a pair of opposed, upwardly convergent walls 11, 12 that allow of, when the pick 21 has been positioned in the box for the front surface 23 thereof to abut against the front wall 11 of the opening, clamping of the pick in the box when a wedge 31 is driven down into the opening to the rear of the pick, the inter-bearing faces 11, 23, 34, 25, 32 of the pick, opening and wedge being suitably inclined with respect to each other to ensure of a satisfactory wedging action in the box.
Patent GB-805359-A (GB)
Title: Improvements in or relating to circuit arrangements embodying transistors
IPC: H03F1/30
Filed: 1957-07-11
Abstract: 805,359. Transistor circuits. TELEFUNKEN G.m.b.H. July 11, 1957 [July 12, 1956], No. 22006/57. Class 40 (6). A transistor has the bias for one electrode (e.g. the base) obtained from a potentiometer 9, 10 and variations in the bias voltage are reduced by connecting a rechargeable battery 13 in parallel with one arm of the potentiometer and arranging that over at least part of the range of variation the battery is charged by the potentiometer. The same battery may be used for stabilizing the bias of other transistors and a switch 14, preferably controlled by the main on-off switch for the circuit, may be provided for disconnecting the battery.
Patent GB-1352775-A (GB)
Title: Chemical reaction processes involving metallic elements
IPC: C04B37/02
Filed: 1971-04-19
Abstract: 1352775 Ceramic-metal seals COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION and FLINDERS UNIVERSITY 19 April 1971 [20 Feb 1970] 22140/71 Heading B3V [Also in Division C1] A ceramic-metal seal is formed by chemical reaction between a refractory oxide ceramic and a metal of the Transition Series at a temperature below the melting point of either component, the bond between the surfaces being characterized by a sharply defined metal-ceramic interface and very small depth of diffusion of the metal into the ceramic. The heating is carried out in air or inert gas, e.g. argon at normal pressure or under vacuum. The ceramic oxide may be BeO, MgO, CaO, BaO, Al 2 O 3 , Yb 2 O 3 , a rare earth or actinide oxides, SiO 2 , ZrO 2 , TiO 2 , the oxides of iron, cobalt, nickel and ruthenium or mixtures thereof. Other ceramics mentioned are spinels, piezo-electric and magneto ceramics, gem materials, silicon dioxide, pure or with varying amounts of other oxides, e.g. quartz, fused silica, glasses and metal oxides, e.g. zirconium dioxide. The metal may be Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag or Au.
Patent GB-1075662-A (GB)
Title: Improvements relating to gas-cushion vehicles
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1964-05-28
Abstract: 1,075,662. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. May 25, 1965 [May 28, 1964], No. 22203/64. Heading B7K. A plenum chamber air cushion vehicle has flexible sidewalls 7 for enclosing the cushion 3, such walls being bounded by further flexible walls 10 which, in association with fixed structure 13, form upwardly extending ducts 12 which communicate at their upper ends with atmosphere. The walls 10 extend below walls 7 so that air escaping from the cushion is directed up into duct 12 whereby any entrained water or dust is able to fall and be discharged from the base of the duct. The duct 12 may be provided with baffle plates to facilitate separation of water or dust and the walls 7 may be constructed in the manner described in Specification 1,043,351.
Patent GB-509281-A (GB)
Title: Improvements in the mounting and cleaning devices for the rolls of roller mills
IPC: B02C4/40
Filed: 1938-07-27
Abstract: 509,281. Roller mills. HOBBS. E. M., and NOVADEL, Ltd. July 27. 1938, No. 22337. [Class 59] A brush holder 2 is adapted to slide longitudinally on a supporting bracket 1 for adjustment relatively to a roller 8 and to rotate about a trunnion 3 for removal of the brush when the holder is retracted sufficiently to permit registration of a groove 13 in the holder with lugs 10 on the bracket. As shown, the stock of a brush, scraper, &c. is mounted in V- shaped recess 12 of the holder plate 2 slidable toward or away from the roller 8 by a screw 7 threaded through the trunnion 3 rotatably mounted in the bracket plate 1. The bracket plate 1 has lugs 10 which form guides for the sides of the holder plate and when the holder plate is retracted for the removal of the stock of the brush &c. a recess 13 in the holder plate aligns with the lugs 10, whereby the holder plate may be rotated for the removal of the brush. The lugs and recess may be formed on the holder and bracket respectively and the screw need not be carried by the holder. Alternative adjustment means may be used.
Patent GB-206925-A (GB)
Title: Improvements relating to bronchitis kettles or vaporizers used in sick rooms
IPC: A61M11/04
Filed: 1922-08-17
Abstract: 206,925. Davies, A. O. Aug. 17, 1922. Bronchitis kettles.-Relates to lids fitted with steam outlet pipes and filling funnels for converting ordinary saucepans or kettles into bronchitis kettles, and consists in a lid fitted with vertically adjustable radial arms whereby it may be secured to any utensil having a mouth of less diameter than that of the interior of the utensil. For converting an ordinary saucepan, a disc 5 serving as a lid is fitted with an annular asbestos gasket 9 held by metal tongues 10, and is secured in place by means of a port 11 having three radial arms and adapted to be drawn up by means of a screw spindle 12 and nut 14 so as to engage the inwardly sloping wall of the saucepan. The disc 5 is fitted with a spout 8 terminating in an expanded mouth 8<a> closed by a hinged or fixed perforated plate 8<b>. A filling funnel passing through the lid has a conical portion 16<a> the lower part of which indicates the upper level to which the saucepan should be filled, and a tubular part 16 extending downwardly so that steam will escapethrough the funnel when the liquid level falls and the saucepan requires replenishing.
Patent GB-480108-A (GB)
Title: Improvements in or relating to carriers for photographic sensitised material
IPC: G03B17/26
Filed: 1936-08-13
Abstract: 480,108. Photographic film carriers. BILLING, N. P., TAPPER, A. H., and WILLIS, A. G. Aug. 13, 1936, Nos. 22371 and 22781. [Class 98 (i)] In carriers for photographic sensitized material of the type comprising inner and outer envelopes separable for exposure, such as described in Specifications 445,611 and 452,013, one of the envelopes carries a flexible tongue which slides in a slot on the other envelope when separated for exposure. As shown in Figs. 1 and 5, the outer envelope is formed from the blank shown in Fig. 1 by folding. The blank comprises panels 24 ... 27, the panel 25 having a mask aperture 28 for exposure. In assembly, the sensitive paper 29 is attached to the panel 27, the inner envelope 20, Fig. 5, is then passed over the panel which is then folded along the line 34 to lie against the panel 25. The panel 26 is then folded along the line 41 and a tongue 30 is passed through a slot 23, Fig. 5, in the lower end of the inner envelope 20, the end of the tongue being secured to the panel 24 by a label 63. On exposure, the inner envelope is drawn upwards and the slot 23, sliding on the tongue 30, prevents complete separation of the envelopes. In a modification, the panels 24, 26 may both have central slots, the outer portions of the panels, when folded, forming the tongue on which the inner envelope slides. In the form shown in Fig. 15, the tongue 60 is carried on the inner envelope 20 and slides in a slot 62 in the outer envelope.
Patent GB-715880-A (GB)
Title: Hydrofoil assemblies and jet propulsion means for boats
IPC: B63H11/00
Filed: 1951-03-20
Abstract: 715,880. Propelling ships. COOKE, W. D. Jan. 11, 1952 [March 20, 1951], No. 22410/53. Divided out of 6705/51. Class 114 The hull of a boat is supported at speed on three sets of hydrofoils 56, each in the form of a nozzle bent downwardly and provided with a steam nozzle 57 to give an injector action, and so cause water flow through the hydrofoils. Steam for the nozzles is supplied from the boiler 58.
Patent GB-336959-A (GB)
Title: Improvements in spray carburetters for internal combustion engines
IPC: F02M19/035
Filed: 1929-07-22
Abstract: 336,959. Hutchison, H. July 22, 1929. Addition to 240,392. Spray carburettors.-The parent Specification describes a carburettor having a mixing chamber around the fuel nozzle, an inner deflector in said mixing chamber for the main current passing to the fuel nozzle to gyrate the said air and bring it into intimate contact with the fuel, and an outer deflector for supplementary air on the outside of the mixing chamber to gyrate said supplementary air in a direction opposite to that of the primary air. According to the invention, the lower part 5 of the carburettor is separate from the upper part 1, and adapted to be secured thereto by a bolt 6 and a screwed pilot nozzle 10. to facilitate assembling and dismantling. The main nozzle 9 is screwed into the lower part, and is adapted to carry the boss 15 of the mixing chamber 25 which has inner gyrating blades 16 and outer 17 of opposite hand. Similar blades extend from the pilot nozzle 11 in passage 4 to which air may be admitted through a device comprising a motatable ported sleeve controlling a port in a tubular member 19. In a modification, the mixing chamber is of comparatively small depth.
Patent GB-532471-A (GB)
Title: Improvements in shoe filler composition and method of making same
IPC: A43B13/42
Filed: 1939-08-02
Abstract: 532,471. Plastic compositions. CLARK, D. M. (North American Holding Corporation, and Parshad Holding Corporation). Aug. 2, 1939, No. 22417. [Class 70] A shoe-filler composition consists of a granular body material such as granular cork, a thermoplastic water insoluble adhesive such as rosin or resinous material softened by addition of petroleum, castor oil, factice, wax tailings &c. bentonite and water. The composition may contain an emulsifying agent such as soap and cork dust. In an example, rosin and wax tailings are melted together and mixed while hot with oleic acid, caustic soda solution and a paste of bentonite and water. The mixture is poured into granular cork. The benonite may be added dry and the mixture treated with steam or water.
Patent GB-272726-A (GB)
Title: Improved hollow reinforced firebars
IPC: F23H17/12
Filed: 1926-09-13
Abstract: 272,726. Thomas, B. A. Sept. 13, 1926. Firebars.-Hollow firebars are produced without the use of cores and are formed with one of more rows of downwardly-tapering ribs f run. ning longitudinally of the bar and intersected at intervals by brackets g projecting laterally from the hollow body j. The latter is of inverted V shape, the bottom being closed by a separate bar h held in position by clips i which are slipped on the bar at its front end. This front end is constituted by continuations of the ribs f tied together at the top so as to leave spaces through which air, entering at b from the ashpit, may pass to the central hollow j and thence to a hollow firebridge c. Specification 4756/96 is referred to in the Provisional Specification.
Patent GB-1436753-A (GB)
Title: Seal for pressure vessels
IPC: F16J15/00
Filed: 1973-05-11
Abstract: 1436753 Seals; pressure vessels ATOMENERGI AB 11 May 1973 [26 May 1972] 22545/73 Headings F2B and F2P A seal arrangement between a reactor vessel body 1 and lid 2 comprises annular flanges 5, 6 joined by a toroid 4 clamped to lid and body respectively by a support ring 3 for legs 7 of the lid and radially adjustable clamping dogs 10. A spring plate 8 secured to the flange 5 only may be fitted to seal off the inside of the toroid and 0-rings 15, 17 with leakage drain or detection passages 16, 18 may be arranged beneath the flanges 6, 5 respectively.
Patent GB-265876-A (GB)
Title: Improvements in boxes and lids therefor
IPC: B65D55/02
Filed: 1926-09-15
Abstract: 265,876. Walter, A. K. Sept. 15, 1926. Lids.-The lid A of a box is formed with pins a at the ends of its side edges slidably engaging clips b, b<1> attached to the sides A<1> of the box, the clip b<1> at the end of the box having springs c which engage the corresponding pins and press the other set of pins into their clips b to hold the lid closed; the lid is opened by sliding it longitudinally against the action of the springs until the pins in the clips not provided with springs are free from such clips when the lid can be swung upon the other pins.