baber/WOPTO huggingface dataset:
Patent GB-727264-A (GB)
Title: Improvements relating to casting by the lost wax process
Inventor: NICHOLAS RICHARD GLYN
IPC: B22C7/02
Filed: 1952-07-04
Abstract: The invention, the object of which is to provide easily removable cores for wax patterns for use in precision casting by the lost wax process, consists in forming a wax pattern conforming to the external shape of the article to be cast by investing with wax, known as pattern wax, a core which conforms to the internal shape of the article and is constituted by a wax which is soluble in a medium in which the pattern wax is substantially insoluble, preferably in intimate mixture with a filler such as fine sand, and removing the core from the solidified investment of pattern wax by solvent treatment.  One part by weight of polyethylene glycol 1,000, a water-soluble wax with a melting point of 35 DEG -40 DEG C., is melted and into it are thoroughly mixed three parts by weight of crushed firebrick of 60-mesh grain size.  The mixture is slowly poured into a core-box which is vibrated until the mixture has set. The core so formed is removed, placed in a die and invested with pattern wax.  When the wax pattern has set it is removed from the die and placed in water to dissolve out the soluble core, which may have ports for the solvent.  With pattern wax having an injection temperature of 60 DEG -80 DEG  C., a suitable temperature for the water is 40 DEG  C.  Specifications 704,004 and 722,816, [both in Group XXII], are referred to.
Patent GB-1334945-A (GB)
Title: Thiepin derivatives and compositions containing same
IPC: C07D513/04
Filed: 1971-05-25
Abstract: 1334945 Dibenzothiepinopyrrole derivatives CIBA-GEIGY AG 25 May 1971 [26 May 1970] 16904/71 Heading C2C Novel compounds of the Formula I wherein R is hydrogen, C 1-6  straight chain alkyl, isopropyl or allyl and pharmaceutically acceptable salts thereof may be prepared either by cyclizing the dibenzothiepin II  with RNH 2  or when R is hydrogen hydrolysing a compound IV wherein Z is an acyl radical of an organic acid, an alkoxy carbonyl group or a cyano group. The intermediate 10,11-bis-(bromoethyl)-2- (trifluoromethyl)-dibenzo[b,f]thiepin may be prepared by N-bromosuccinimide bromination of 10,11 - dimethyl - 2 - trifluoromethyl - dibenzo- [b,f]thiepin which is prepared by dehydration of 10,11-dihydro-10,11-dimethyl-8-trifluoromethyldibenzo[b,f]thiepin-10-ol. which in turn is prepared by treating 11-methyl-8-trifluoromethyldibenzo[b,f]thiepin-10(11H)-one. The dibenzothiepinone may be prepared by cyclizing o- (α,α,α-trifluoro-p-tolylthio)-hydratropic acid which may be prepared by methylation followed by hydrolysis of [o-(α,α,α-trifluoro-p-tolylthio)-phenyl]-malonic acid diethyl ester which in turn is prepared by the action of ethyl carbonate on the sodio derivative, formed in situ, of ethyl[o-(α,α,α- trifluoro-p-tolylthio)phenyl] acetate. which is formed by esterification of the free acid.  The intermediate 2-ethoxycarbonyl-2,3-dihydro 5-trifluoromethyl-1H-dibenzo[2,3: 6,7] thiepino [4,5c]pyrrole may be prepared by action of ethyl chloroformate on the 2-allyl compound I. Pharmaceutical compositions of the compounds I show central depressant activity when administered orally, parenterally or rectally with the usual excipients.
Patent GB-954136-A (GB)
Title: A device for fixing an immersion heater in a container
IPC: H05B3/04
Filed: 1962-05-02
Abstract: 954,136. Mounting electric immersion heaters. MANUFACTURE PYROR S.A. May 2, 1962 -[May 3, 1961], No. 16915/62. Heading H5H. An immersion heater passes through and is supported by a plate which may be placed over an opening in the wall of a container for mounting the heater therein, at least one flanged member being mounted on the plate such that it may be displaced in, or into, an inclined direction relative to the plane of the plate, to allow it to pass through the opening and thereafter extend behind the edge of the opening. The U-shaped heater 1 is welded to plate 4 which is provided with a groove for an elastic sealing- ring 5, and housings 9, of square cross-section, each with its innermost wall 10 slanted to permit angular displacement of a square section flanged member 8 against the ring 10. Nuts on the threaded portions 11 enable the plate to be clamped against the container wall. In a modification (Figs. 2 and 3, not shown) which employs only a single flanged member, the latter is axially displaceable in an inclined housing positioned between the two legs of the heater.
Patent GB-705161-A (GB)
Title: Improvements in and relating to adhesive dressings and the like
Inventor: ANDERTON EDWARD
IPC: A61L15/26
Filed: 1950-07-06
Abstract: The protective layer for a dressing having a rubber adhesive is comprised of paper coated or impregnated with low molecular weight polysiloxane applied as a solution or emulsion and subsequently dried.  The resin may be applied in solution in a chlorinated solvent, an aliphatic or aromatic hydrocarbon or a ketone and may be emulsified before use.  The protective paper layer may be applied to individual dressings or to a rolled strip or may be formed into envelopes each containing a separate dressing.
Patent GB-706128-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: LOVE PHIL PRINCE
IPC: F16C33/14
Filed: 1951-07-17
Abstract: A method for the production of continuous strip material from which bearing liners, thrust washers or the like may be formed comprises electro-depositing on a continuous steel backing strip an adherent coating of metal, e.g. copper, silver, capable of being wetted by the molten soft metal which forms the bearing surface layer, said coating extending up to or short of the edges of the packing strip so that said edges and the marginal parts of the strip are left uncoated, applying on the coated surface an evenly distributed layer of a soft bearing metal, e.g. lead. tin or babbit metal, which will not readily wet steel and heating the strip in a neutral or reducing atmosphere to melt the bearing metal and bond it to the coated surface of the backing.  The uncoated steel edges and marginal parts of the strip confine the molten bearing metal to the coated surface and means for preventing the molten metal from flowing over the edges of the strip are not required.  The coating may be electrodeposited on the steel backing and the coating removed from the edges and marginal parts by cutting means.  The soft metal bearing surface may be of graded thickness transversely of the strip so that the marginal parts are thinner than the middle part to compensate for localised thickening of cut blanks when they are pressed into bearing liners.  In an embodiment the strip is electro-plated with copper to a thickness of 0.0008 inch and the copper coating is removed along the edges of the strip to provide uncoated marginal parts of 1/8 inch wide.  Lead is applied in the form of powder or thin strip or foil and the compound strip is passed through a furnace and heated in a neutral or reducing atmosphere to a temperature between 400 DEG C. and 700 DEG C.  A lead alloy containing 12.5 per cent. antimony, 3 per cent. arsenic and 0.5 per cent. tin may be used.
Patent GB-164252-A (GB)
Title: A contrivance for facilitating the simultaneous entering of identical items in two books
IPC: B41L3/20
Filed: 1920-06-23
Abstract: 164,252. Kitson, A. J. D., (Hubert, E). June 23, 1920. Block and sheet holders; multiple blocks, pads, and the like for manifolding; book-keeping. - To facilitate the simultaneous entry of items in two books, the pages are provided with headings alternately at the top and bottom, and means are provided to facilitate the registration of the lines and columns on the pages. The books a, b, Fig. 1, are provided with dove-tailed members c and d respectively, and the books are moved until the left-hand page of one book exactly covers the right-hand page of the other. In the modification shown in Fig. 2, the left-hand book is mounted upon a slide f adapted to receive endwise movement through worm-gearing, by the operation of a handle y, while the right-hand book is mounted upon a slide g connected to a rocking-bar m from which it receives a lateral movement. The bar m is operated by a handle r through a segmental rack and a pinion.
Patent GB-1020517-A (GB)
Title: Improvements in corrosion-resistant high-strength alloy steels
Inventor: ALLEN GEOFFREY BERTRAM
IPC: C21D6/00
Filed: 1963-04-30
Abstract: An alloy steel consists of: .C.up to 0.03% .Cr.8.0-16.0% .Ni.2.0-9.0% .Mo.1.0-5.0% .Ti.0.2-0.7% .Co.8.0-15.0% the balance, apart from impurities and incidental elements, being iron.  The alloy is heated to 850 DEG  C., air cooled and hardened at 420-550 DEG  C. Impurities disclosed are: .Si.up to 0.1% .Mn.up to 0.2% .S.up to 0.01% .P.up to 0.01% and incidental elements are: .Al.up to 0.15% .Nb.up to 0.2% .V.up to 0.15% .B.up to 0.02% .Zr.up to 0.02% The ingots are soaked at 1230  DEG C. and hot worked in the range 1200-1000  DEG C., after reheating to 1100  DEG C. they are worked in the range 1000-850  DEG C.  The steel may require refrigeration to -80  DEG C. after the 850  DEG C. anneal prior to the 420-550  DEG C. hardening.
Patent GB-638431-A (GB)
Title: Improvements in thermo-couple devices
IPC: G01K7/04
Filed: 1948-06-15
Abstract: 638,431. Thermo-electric batteries. SPEED DEVELOPMENT CO., Ltd., and RUFFLE, W. H. June 15, 1948, No. 17067/47. [Class 53] A thermocouple particularly for use in a fire alarm installation comprises hot and cold junctions which are freely exposed to the atmosphere but which are shielded one from the other. As shown in Fig. 2, leads 1, 2 carrying terminals at their lower ends are connected by a wire 6 of a different metal to form a hot junction 5 and cold junction 4. The wires are surrounded by a sleeve 7 which leaves the junction 5 exposed at its upper end but protected by projecting ears 14. The junction 4 is within the sleeve and is shielded from heat reaching the junction 5 by insulating thimbles 15, 16 threaded on the wires 6, 2. The lower part 8 of the sleeve 7 is formed with slots 13 to allow the atmosphere to have free access to the interior of the sleeve while preventing the entrance of flame.
Patent GB-1440036-A (GB)
Title: Fluorescence gas analyzer
IPC: G01N21/64
Filed: 1974-04-10
Abstract: 1440036 Fluorescence gas analyzers MASSACHUSETTS INSTITUTE OF TECHNOLOGY 10 April 1974 [12 April 1973] 17176/75 Divided out of 1440035 Heading G1A The description is the same as Specification 1440035, but the claims relate to the method of calibrating a gas analyzer and to an analyzer which may be so calibrated.
Patent GB-975890-A (GB)
Title: Improvements in or relating to soil cultivating implements
IPC: A01B73/04
Filed: 1962-06-29
Abstract: 975,890. Agricultural implements. C. VAN DER LELY N.V. June 29, 1962, No. 17193/64. Divided out of 966,126. Heading A1B. To reduce the width of a harrow for transport purposes harrow frames 2, 3 are tilted into a vertical position. The frames 2, 3 are pivotally mounted on a frame 7 which is connected by links 20, 24 to a coupling device attached to the linkage of a tractor 17. Locking pins 12 are provided so that the frames 2, 3 may be locked in the working and transport position.
Patent GB-850714-A (GB)
Title: Improvements in aircraft having wings provided with flaps
IPC: B64C23/00
Filed: 1958-05-30
Abstract: 850,714. Controlling aircraft. SOC. DE BREVETS H. D. May 30, 1958 [June 4, 1957], No. 17282/58. Class 4. A flap or aileron 2 is mounted on the trailing edge of an aircraft wing 1 by means of a pivot 6 on the flap which engages a slotted guide rod 5 fast with the wing and also by a linkage comprising an arm 10 fast with the flap and pivotally connected at 9 to an arm 7 pivoted at 8 to the wing. The common pivot 9 of the linkage is connected to a rod 13 which is operated by a lever 12 and jack 11 for the purpose of swinging the flap from the inoperative position shown, first to an intermediate position in which the flap forms a slot with the trailing edge of the wing and then to a fully deflected position in which the slot becomes closed. In this latter position of the flap air is blown over its upper surface from a spanwise slot 4 in the trailing edge of the wing, though this may be rendered inoperative when the flap is used for braking purposes during a landing run. The supply of air to slot 4 may be obtained from a blower driven separately or by the aircraft power plant, the air passing through a conduit S for control by a valve V operated by solenoid M energised by switch C which is closed when lever 12 switch C which is closed when lever 12 is moved to the dotted line position in the Figure. During a landing run the blower, if driven separately is rendered inoperative by a switch operated by a telescopic member of the undercarriage.
Patent GB-166440-A (GB)
Title: Improvements in valve gear for prime movers, particularly applicable to steam engines and the like
IPC: F01L25/06
Filed: 1920-06-25
Abstract: 166,440. Ruperti, H. H. J. June 25, 1920. Fluid-actuated gears.-In an engine, pump, or compressor operated by steam, the distributing- valve E of the power cylinder is reciprocated by steam supplied from the cylinder through pistoncontrolled ports f, f<1> opened before the end of the stroke to the ends of the valve-chest through passages k, k<1> in the valve. The steam supply to the main cylinder is controlled by the central part of the valve, and the exhaust therefrom by the ends of the valve passing over ports g, g which also act as exhausts for the valve-chamber ends. Rotation of the valve is prevented by pins and slots. The casing is provided with a lubricant branch opposite the steam inlet.
Patent GB-806775-A (GB)
Title: An improved device for distributing finely divided materials
IPC: A01C17/00
Filed: 1957-05-31
Abstract: 806,775. Powder distributers. GANLEY, B. F., and GANLEY, M. R. May 31, 1957, No. 17308/57. Class 6(1). A machine for distributing finely divided materials comprises a hopper 2 divided into two bins by a central compartment 20 an endless conveyer 18 movable across the bottom of each bin to feed material through adjustable openings to a worm 10 rotatable in a lower trough 9 forming the bottom of the central compartment 20, the worm 10 feeding the material to a fan distributer 26 at the rear of the machine; an upper trough positioned within the central compartment and provided with a worm 7 which feeds material through an adjustable aperture 24 to the worm 10. The distributer comprises a fan 25 mounted in a tranverse shroud which is open at its ends and along its under surface. A deflecter is mounted within the housing of the fan and may be moved to divert the flow of material thrown radially by the fan through either one of the lateral sections of the shroud. The worm 10 and fan 25 are driven from the power shaft of the tractor touring the machine and worm 7 and conveyers are driven from a land wheel 5.
Patent GB-1147884-A (GB)
Title: Furnace for making high abrasion furnace black or intermediate super abrasion furnace black and process of operating same
IPC: C09C1/50
Filed: 1966-04-20
Abstract: 1,147,884. Carbon black furnace. PHILLIPS PETROLEUM CO. 20 April, 1966 [23 April, 1965], No. 17331/66. Heading C1A. A carbon black furnace comprises a cylindrical combustion section (13) having an axial hydrocarbon feed inlet (59) and a preferably tangential fuel inlet (24), and two cylindrical reaction sections (14 and 16) with quench inlets (17 and 18) at their ends, the diameters of the respective sections being at least 2d, d, and (1 1/6-1 2/3)d, and the lengths of the reaction sections being 4¢-5¢ ft., and 8-11 ft., respectively. Suitable diameters for the three sections are 3 ft., 1 ft. and 1 ft., respectively. In Fig. 6, hydrocarbon feed from line 43 is preheated at 42 and passed via line 52 to nozzle 59, optionally with additives, e.g. aqueous KCI, from tank 61. Fuel hydrocarbon is passed from line 64 to nozzles 31 in inlets 24; alternatively, the hydrocarbon feed may be used as fuel by opening valve 32. Compressed air from line 39 is preheated at 38 and passed via line 53 to nozzles 29 to burn with the fuel. Some air may be passed via 63 to annular space 12 round nozzle 59. In furnace 11, the hydrocarbon feed is enveloped in an annular stream of hot combustion gas, and yields ISAF black if quenched with water at 17, or HAF black if quenched at 18. The quenches 17 and 18 may have 2 and 4 radial inlets respectively. The product stream is passed through indirect heat exchangers 37 and 41 (to preheat feed and air) and thence to bag filter 46. The hydrocarbon feed is preferably a light oil, e.g. petroleum, coal tar or synthetic gas oil or cracked residue, of specified properties. Particle size and surface area of the product are given.
Patent GB-376469-A (GB)
Title: Improvements in or relating to four-wheeled motor-propelled lorries and the like
IPC: B60G5/047
Filed: 1931-06-16
Abstract: 376,469. Vehicle suspension systems. ASSOCIATED ENGINEERING INDUSTRIES, Ltd. and HAYTHORN, J., Kendal Street, Preston. June 16, 1931, No. 17416. [Class 108 (ii).] In six-wheeled vehicles in which the two rear axles are each provided with semi-elliptical springs e connected by equalizing levers n, the two axles are spaced a fixed distance apart by rods p so that the expanding brakes q may be simultaneously operated through tle connecting link s pivoted to the operating levers r, t.
Patent GB-109168-A (GB)
Title: Improvement in Scissors, Forceps and the like.
Inventor: VICKERS JOHN HENRY
IPC: B26B13/28
Filed: 1916-12-05
Abstract: 109,168. Vickers, J. H. Dec. 5, 1916. Hinges readily separable about hinge pin.-In scissors, forceps, &c., with separable members, the pivot screw is fixed to the member B, Fig. 3, and is surrounded by an inclined recess F, adapted to receive, the other member A, Fig. 4, when the scissors &c. are opened widely. The member A has a keyhole slot E, which is recessed at the end C to receive the head of the pivot screw.
Patent GB-952959-A (GB)
Title: Improvements in or relating to magnetic tape recorders
IPC: G11B15/10
Filed: 1962-05-07
Abstract: 952,959. Magnetic tape recorders; autostops. AKAI ELECTRIC CO. Ltd. May 7, 1962 [Aug. 10, 1961], No. 17494/62. Heading G5R. A feeler pin 13 urged resiliently against a tape 14, whether transducing or fast winding is taking place, moves clockwise if the tape breaks, runs out or unreasonably slackens to trigger off automatic stopping means. The capstan 20 has a pinion 21 on its shaft which normally idles in a cut-out 17 in an eccentric gear 18 pivoted at 19 to a swing-link 16; when feeler pin 13, attached to a sickle-form member 12,pivoted at 11 moves, a striker 47 engages a pin 48b on the gear 18 to move its periphery into engagement with the capstan pinion 21. In the process of making one complete turn, the link 16 swings to the left and back, applying brakes (not detailed), releasing from engagement idlers 37, 38, providing reel-drives, and, should a pinch-roller 50 have been engaged with the capstan 20 by cam means 49 associated with a record/playback switch-shaft 30, decouples this drive also. The movement of the link 16 may also operate a motor switch (not detailed) in the latter part of its movement.
Patent GB-146227-A (GB)
Title: An improved process for obtaining oxides of nitrogen from ammonia
IPC: C01B21/26
Filed: 1920-06-28
Abstract: In the oxidation of ammonia, in order to recover the ammonium nitrate and nitrite and ammonia carried over with the products of the combustion, the latter are treated with sulphuric acid, before passing to the absorption apparatus.  Ammonium sulphate and nitric and nitrous acids are formed and the ammonia is prevented from reacting with the oxides of nitrogen to give nitrogen.  Other acids such as phosphoric acid, and also acid salts such as bisulphates, may be used in place of sulphuric.  In another method, loss is prevented by subjecting the products from the combustion of ammonia to the action of excess of alkalies or alkaline earths, when the ammonium nitrate and nitrite are decomposed, and free ammonia passes on to the absorption apparatus.ALSO:In the oxidation of ammonia, in order to recover the ammonium salts and ammonia carried over with the products of the combustion, the latter are treated with excess of alkalies or alkaline earths, when the ammonium nitrate and nitrite are decomposed, and free ammonia passes on to an absorption apparatus.
Patent GB-543664-A (GB)
Title: Improvements relating to illumination
IPC: F23D14/12
Filed: 1940-12-11
Abstract: 543,664. Luminescent illuminating device. INSTITUTION OF GAS ENGINEERS, and SMITH, E. C. W. Dec. 11, 1940, No. 17530. [Class 39 (i)] In a luminescent illuminating device using combustible gas, a refractory luminescent material containing a small proportion of an activating substance is carried on a support so as to be in contact with a large proportion of the outer surface of the gas flame, the support being adapted to dissipate the heat sufficiently to maintain the luminescent material below the temperature of incipient incandescence, above which temperature the luminescence fades. As shown, the luminescent material 3 is coated on to the surface of a block 2 of porous refractory material arranged in a casing 1 to which hydrogen or other combustible gas is supplied, the gas diffusing through the block and burning in a large number of very small flames at the coated surface. The block dissipates the heat sufficiently rapidly to prevent heating of the luminescent material to incandescence. The intensity of illumination may be increased by burning the gas under reduced pressure, for which purpose the device may be enclosed in a glass globe connected to a suction pump. The luminescent material may be coated on the block 2 in the form of a liquid suspension with or without a binding agent, which is allowed to dry, or by rubbing on the powdered material. The material may be prepared by precipitation from a solution containing a small proportion of a compound of the activating element, preferably as carbonates, which are then ignited to form oxides. The luminescent material may consist of calcium or other alkaline metal earth oxide, such as barium or strontium oxide, or of magnesium or beryllium oxide. The activating material, which may be present to the extent of about 1 per cent, may consist of manganese, bismuth, antimony, praseodymium, tin, lead, or a rare earth metal. A mixture of luminescent materials may be used to obtain light of a desired spectral distribution. Thus, a light approximating to daylight may be obtained from a mixture of calcium oxide activated with antimony, and calcium oxide activated with praseodymium, which have respectively blue and pink luminescences.
Patent GB-1137920-A (GB)
Title: Improvements in or relating to solar heaters
IPC: F24S10/60
Filed: 1965-04-26
Abstract: 1,137,920. Utilizing polar heat. P. P. HACKETT. 26 April, 1966 [26 April, 1965], No. 17559/65. Heading F4U. In a solar heater comprising a water container 11 mounted in a box 12 having an open side covered by a glass pane 31, a plurality of open-ended pipes 34 extend through container 11 to increase the surface area thereof and to allow greater air circulation within the box. Pipes 34 have flared ends which are secured to the opposite surfaces of the container to strengthen the latter. That part of the interior of the box which is overlaid by the container is covered by a reflectant paint, the remainder of the box, the container and the interior of pipes 34 being painted black. The container is connected to a hot-water storage tank (Fig. 1, not shown). Preferred dimensions are given.