baber/WOPTO huggingface dataset:
Patent GB-625731-A (GB)
Title: Improvements relating to smoke detecting and similar systems
IPC: G01N21/53
Filed: 1946-04-25
Abstract: 625,731. Smoke detecting photo-electrically. KIDDE CO., Ltd., W., and BARBER, F. April 25, 1946, No. 12509. [Class 40 (iii)] In apparatus for detecting smoke and other suspensions in a fluid two or more light sensitive devices are provided arranged in a normally balanced network and not directly illuminated by a light source. Dispersed light, due to the presence of smoke upsets the balance to produce an indicating effect. As shown, the output of five barrier-layer type cells B12 screened from the direct light of a source L of a mask M2 is normally balanced against the output of a single cell B11 screened by an adjustable mask M1. The air flow under examination enters at a4 and leaves at a5. The presence of smoke causes uneven illumination, upsetting the electrical balance to operate an indicator. In other embodiments selenium resistance cells are used arranged in a Wheatstone bridge. An amplifying circuit using two pentodes with one of the coils of differential relay connected in each anode circuit is described (Fig. 4, not shown). In further embodiments (Figs. 5 and 7, not shown), difference of output of one cell or group of cells compared with another cell or group is used to operate a directional relay to close one of two alarm circuits indicating which of the cells has been illuminated.
Patent GB-197684-A (GB)
Title: An improved vacuum producing device
IPC: F04F5/42
Filed: 1923-05-10
Abstract: 197,684. Kobiolke, A. M. May 10, 1922, [Convention date]. Aspirating apparatus, ejector.-The nozzle 2 of a steam- or water-operated ejector for producing a vacuum in a chamber connected, through a pipe 4, to a chamber into which the nozzle discharges, is provided with a spiral baffle 5 or with internal spiral ribs, not shown, so as to impart a rotary motion to the inducing fluid and to cause it to issue from the nozzle as a spherical wall 9 enclosing a space 10 into which the air from the chamber to be evacuated is sucked. The chamber 3 comprises an upper portion of uniform cross-section and a lower portion, bolted thereto, having a converging-diverging bore 8 axially in line with the inducing nozzle 2. The height of the delivery pipe may exceed that of the water barometer so as to assist the inducing action.
Patent GB-514125-A (GB)
Title: Improvements in or relating to method of manufacturing refractories
IPC: C04B35/42
Filed: 1938-04-27
Abstract: 514,125. Refractory compositions. OESTERREICHISCH AMERIKANISCHE MAGNESIT AKT.-GES. April 27, 1938, No. 12636. Convention date, April 28, 1937. Drawings to Specification. [Class 22] Chromite-magnesia refractory bricks are made from a mixture of 50-80 per cent. of ground chromite material from which the finest fraction, comprising grain sizes up to 0.1 mm. at least, but stopping short of 0.5 mm., has been removed, and 50-20 per cent. of finely sub-divided magnesia. The chromite may be pre-burned or not, and fused magnesia, or dead-burned magnesite may be used. The mixture is moulded after the addition of water and, if desired, a binder such as sulphite waste liquor, molasses, dextrine, waterglass, or magnesium sulphate. Baked, or non-baked, coldset bricks may be produced. Specifications 409,130 and 435,448, U.S.A. Specification 2,053,146, and French Specification 800,522 arereferred to. The Specification as open to inspection under Sect. 91 describes also the removal from the ground chromite of a fraction comprising grain sizes up to 0.8 mm. This subjectmatter does not appear in the Specification as accepted.
Patent GB-882704-A (GB)
Title: Improved hydraulically operable bar or rod stock bending means
Inventor: MILLER DONALD
IPC: B21D7/06
Filed: 1957-04-18
Abstract: 882,704. Angular bending. WHITELEYREAD ENGINEERS Ltd. April 18, 1958 [April 18, 1957], No. 12644/57. Class 83 (4). Bar bending machine comprises toggle means operated by an hydraulic press in a vertical plane to operate at one movable end on stock disposed horizontally perpendicular to that end, the force of the press being applied diagonally downwards through one of the toggle links to an angular member engaging one side and over the stock in a manner to impart to the stock horizontal thrust for bending it and downwards thrust for holding it down during the bending operation. A bar S on a table 2 is bent between abutments 14, 15 by a member 10 pushed forward by toggle means 8, 9 the hinge pin 7 of which is guided in a horizontal slot 6 in a head 3 attached to an hydraulic ram 1 depressed to effect the bending stroke. The member 10 has an extension 10b extending over the bar S to hold it down during bending.
Patent GB-1043127-A (GB)
Title: Fuel cells
IPC: H01M8/08
Filed: 1964-03-25
Abstract: 1,043,127. Fuel cells. GENERAL ELECTRIC CO. March 25, 1964 [April 8, 1963], No. 12657/64. Heading H1B. A fuel cell consuming a fluid hydrocarbon fuel has an aqueous electrolyte of phosphoric acid (54-76% P 2 O 5 ) and operates at a temperature of 130-250 C. and within the range from boiling point to 100 C. below boiling point of the electrolyte.
Patent GB-1212861-A (GB)
Title: Cooling apparatus
Inventor: HOWARD DAVID ROBERT
IPC: B21B45/02
Filed: 1967-03-17
Abstract: 1,212,861. Rolling. DAVY & UNITED ENG. CO. Ltd. 11 March, 1968 [17 March, 1967], No. 12787/67. Heading B3M. An elongated slab 1 is cooled before rolling in a mill 4, the cooling being controlled in response to the measured temperature contour of the slab across its width, in order to present the slab to the mill with a desired temperature contour. Water sprays 6 and 7 cool the slab, a valve 11 controlling the volume of water supplied to the sprays by,a pump 12. The valve is in turn controlled by pyrometers 8, 10 and 15 and by a revolution counter 16. The pyrometer 8 detects the presence of the slab and measures its temperature, while the pyrometers 10 and 15 respectively detect the presence of the leading and trailing edges of the slab. Pyrometers and corresponding jets spaced across the width of the slab may be employed. The cooling can be controlled to provide a slab having a uniform temperature along its length, or can provide a temperature distribution which results in a slab of constant thickness after rolling.
Patent GB-1102840-A (GB)
Title: Production of 3,4-diethylpyridine
IPC: C07D213/127
Filed: 1966-03-23
Abstract: 3,4-Diethyl pyridine is prepared by reacting an alkali metal with liquid ammonia containing an alkylation catalyst to produce an alkali metal amide, adding 3-ethyl-4-methyl pyridine to the resulting slurry and then adding a methyl halide to the resultant mixture.  The product is suitably isolated by evaporating the ammonia, adding water dropwise, extracting the resultant solution with a water-immiscible organic solvent washing and drying the organic extract and removing the organic solvent.  Ferric nitrate is the preferred alkylation catalyst and ether is a suitable organic solvent.
Patent GB-1382919-A (GB)
Title: Making sliding clasp fasteners
IPC: A44B19/54
Filed: 1972-03-20
Abstract: 1382919 Weaving stringer tapes WILLIAM PRYM-WERKE KG 20 March 1972 [25 March 1971 10 April 1971 22 May 1971] 12834/72 Addition to 1341266 Headings DIE and D1K Coupling links are formed in a stringer tape during weaving by a rotor 47 having an eccentric aperture 56 through which a thread 15 passes so that as the rotor rotates loops of the thread are formed about a mandrel 16 at one side of the shed and supported at one end in the centre of the rotor 47. The loops slide off the free end 33 of the mandrel as the fabric is taken up. Loops of weft 12 are inserted by a needle 17 and the rotor is dimensioned and positioned so that thread 15 is reciprocated a vertical distance equal to twice the height of the shed at the axis of the rotor, and so that the mandrel 16 is coplanar with the bottom warp sheet. A supporting thread 60 may be woven into the loops 16, the thread 60 being taken from a bobbin 67 through which thread 15 passes, and which rotates synchronously with rotor 47 to prevent threads 15 and 60 from looping around each other, and then passes through a stationary bush 55 to the fell 57. The thread is shed above the level of the weft inserter 17 on alternate picks by a notched rod 62 Fig. 3, or it may pass through an eccentric aperture (59) Fig. 5 (not shown) in bush 55 so that as bush 55 is oscillated thread 60 passes alternately above and below the level of the weft inserter 17. Alternatively, the weft inserter 17 may enter the shed at different vertical levels respectively above and below the thread 60 on alternate picks (Fig. 5). Stringer tapes (Fig. 7b not shown). Additional warp threads 37 may be incorporated above and below the main sheet to form a channel section into which the internal bights 39 of the coupling loops fit. The thread 15 may be a plastics or metal filament.
Patent GB-698677-A (GB)
Title: Improvements in and relating to the stabilisation of organic compounds
Inventor: ROBERTSON ALAN
IPC: C07C45/86
Filed: 1950-05-23
Abstract: Aldehydes, esters of unsaturated carboxylic acids and ethers liable to deterioration arising from peroxide formation are stabilized by adding a small amount of 2,5 - di - (dimethylaminomethyl) - hydroquinone, e.g. between 0.001 and 1.0 per cent by weight. Examples are given of the stabilization of nonaldehyde and methyl methacrylate.  According to the Provisional Specification, there may be used as stabilizer a dihydroxybenzene substituted in the ring by the group -CH2NR1R2, where R1 and R2 are H or an alkyl or substituted alkyl group but not both are H, and which may have any other hydrogen atom in the ring substituted by a phenyl group or alkyl group containing up to 8 carbon atoms. Specification 681,993 is referred to.ALSO:Petrols are stabilized by adding a small amount of 2, 5-di(dimethylaminomethyl)-hydroquinone, e.g. between 0.001 and 1.0 per cent by weight.  An example is given of the stabilization of a cracked petrol.  According to the Provisional Specification there may be used as stabilizer a dihydroxybenzene substituted in the ring by the group -CH2NR1R2, where R1 and R2 are H or an alkyl or substituted alkyl group but not both are H, and which may have any other hydrogen atom in the ring substituted by a phenyl group or alkyl group containing up to 8 carbon atoms.  Specification 681,993, [Group IV (b)], is referred to.
Patent GB-1091361-A (GB)
Title: Improvements in or relating to the making of concrete
IPC: B28C7/00
Filed: 1964-03-26
Abstract: Concreting is made possible in cold weather by mixing the concrete with water heated to a temperature of at least 100 DEG F in an electrical resistance heater having a continuous flow capacity of 3 1/2 gpm.
Patent GB-628033-A (GB)
Title: Improvements in or relating to loud-speaking telephone equipment
IPC: H04M9/08
Filed: 1947-01-23
Abstract: 628,033. Loudspeaker systems. AUTOMATIC TELEPHONE .& ELECTRIC CO., Ltd., ROSEBY, P. N., and RICKABY, A. Jan. 23, 1947, No. 12917/49. Divided out of 628,008. Drawings to Specification. [Class 40 (iv)] A loud-speaking telephone equipment is the same as that described in Specification 628,008, the claims being directed to the use of a thermistor across the output to the loudspeaker for the reduction of the tendency to howl.
Patent GB-271106-A (GB)
Title: Improvements in or relating to electromagnetic bodies
IPC: H01F1/20
Filed: 1927-05-13
Abstract: 271,106. Siemens & Halshe Akt.-Ges. May 17, 1926, [Convention date]. Transformers. - An electromagnetic body for transformers &c., particularly with a subdivided core consists of a magnetic substance in monocrystalling form or consisting partly of monocrystalline and partly of polycrystalline crystals. Such substance is stated to have negligible hysteresis loss. The mono-crystals may be in the form of rods or rings for repeaters, loading-coils, &c., or the size of the crystals may be reduced to such an extent that the ferromagnetic substance is obtained in the form of powder to which may be added an insulating material, the mixture being moulded under low pressure to prevent conversion of the crystals into the polycrystalline form. In the manufacture of rods &c. a more or less extensive conversion to the polycrystalline form may be permitted. Iron, nickel, cobalt, or other pure metals may be employed as the ferromagnetic materials or alloys such as iron-nickel alloys, or iron alloyed with silicon, aluminium, copper, chromium, &c. Heussler alloys may also be employed. Monocrystalline ferro-magnetic bodies in powdered form may be produced by the decomposition of nickel or iron carbonyls at a suitably chosen temperature and pressure, or by electrolysis of metal salts under suitable conditions of current strength, concentration, temperature, compound state, and surface nature of the electrodes.
Patent GB-973562-A (GB)
Title: An improved means for securing panels to a base member
Inventor: ARMSTRONG EDWARD
IPC: G21C11/08
Filed: 1960-04-12
Abstract: 973,562. Bolting; washers; covers for nuts. DARCHEM ENGINEERING Ltd. April 12, 1961 [April 12, 1960], No. 13026/60. Heading F2H. [Also in Divisions B3 and G6] In order to secure a metal insulating panel 3 on a nuclear reactor shell A, panel apertures 2 for receiving studs 1 fixed to the shell surface are made large to overcome discrepancies caused by mislocation of the studs and the space around each stud is filled by an eccentricallyholed ring 4 whose hole is filled by a further eccentrically-holed ring 5 encircling the stud 1; the rings 4, 5 each comprise a casing containing insulation and are angularly adjusted into position. Flanges on the ring casings, at the edge of each ring remote from the shell A, hold the rings in position and they are secured by a nut 6. A cover panel 13 with a large hole 14 may be held over the insulating panel 3 by rings 7, 8, similar to the rings 4, 5 in being eccentrically holed, and secured by a nut 15 shielded by an insulating pad 16 in a casing 17.
Patent GB-707833-A (GB)
Title: Metallic bellows particularly for pipe expansion joints
IPC: F16L51/02
Filed: 1952-05-22
Abstract: 707,833. Stuffing-box substitutes. TITEFLEX, Inc. May 22, 1952 [July 12, 1951], No. 13052/52. Class 122(5) [Also in Group XXVIII] A sealing bellows comprises terminal plates 12, 13 and a number of diaphragm elements each comprising a pair of apertured, dished discs 2, 3 of equal external diameter and unequal apertures. The outer margins of each member of a pair are united to the outer margins of each member of an adjacent pair, and the inner margin of each member of a pair is united respectively to the inner margin of the corresponding member of an adjacent pair. An air space 14 is enclosed by the discs 2, 3.
Patent GB-1497933-A (GB)
Title: Burners
IPC: F23D11/00
Filed: 1975-03-27
Abstract: 1497933 Burners RESEARCH INSTITUUT "SESTO" BV 27 March 1975 [11 April 1974] 13072/75 Heading F4T  A burner comprises a body with steps 3, 4, supporting partitions 17, 18, the partitions being curved towards the burner axis to define flame openings 20, 21, an evaporating chamber 1 at the burner base, and a burner mouth 13. Air is supplied through apertures 9, 10, 11, 15, 16 and liquid fuel is supplied at 23. The mouth of the burner is wider than chamber 1, and the burner may be elongated (as shown), or it may be circular or elliptical in plan view. The vapour pressure is relieved by providing equalizing slots 24.
Patent GB-1171103-A (GB)
Title: Hydrogenation of Hydrocarbons.
Inventor: GIBSON GREVILLE HEDLEY
IPC: C01B21/02
Filed: 1966-03-24
Abstract: 1,171,103. Hydrogen separation. GAS COUNCIL. 14 March, 1967 [24 March, 1966], No. 13123/66. Heading B1L. [Also in Division C5] In a process for hydrogenating a hydrocarbon feedstock to produce combustible gas containing substantial proportions of methane and ethane, the gas leaving the hydrogenator is contacted with an absorbent for the methane and ethane, and unabsorbed hydrogen is recovered and recycled to the hydrogenator. In the apparatus shown, vaporized light distillate feedstock at 1 divides into a main stream 2 and a minor stream 3. The minor stream is reformed into a hydrogenating gas in a catalytic steam reformer 4. After passage through a CO shift-reactor 5 and CO 2  remover 6, this gas is mixed with the recycled hydrogen-rich stream 7 and the stream of distillate 2, and the mixture is heated to 430‹C in heat exchanger 8 and passed to a gas recycle hydrogenator 9 e.g. as described in Specification 1,031,717. The product gas passes via the heat exchanger to a waste heat boiler 10, quench 11 and benzole removal system 12 and is then introduced into pressure absorber 14 at a temperature of 30‹C. The liquid absorbent may be e.g. pentane, hexane or octane, or a light petroleum distillate consisting predominantly of aliphatic hydrocarbons, or it may be a predominantly aromatic oil. It may have a 95% by volume b.p. of not more than 170‹C. Hydrogen-rich gas leaves the top of the absorber to be recycled and the absorbent with dissolved methane, ethane and other constituents is passed via heat exchanger 18 to a stripping column 16 in which the absorbed gases are recovered and pass via absorbent condenser 21 to line 23. The absorbent is regenerated and returned to the absorber via line 24 and cooler 25. If the absorbent is the same as the feedstock at 1, some of the regenerated absorbent can be fed back via line 27 and vaporizer 28; further, the feedstock, instead of being supplied at 1, may be fed in at 26 to the top of the absorber.
Patent GB-1203875-A (GB)
Title: Unsaturated polyester resin/monomer moulding compositions
Inventor: CROWE ALAN
IPC: C08K7/22
Filed: 1968-03-19
Abstract: 1,203,875. Unsaturated polyester compositions. BRITISH RESIN PRODUCTS Ltd. 26 Feb., 1969, No. 13163/68. Heading C3P. A free flowing unsaturated polyester moulding composition comprises a solid, particulate, free flowing mixture of a liquid unsaturated polyester resin/copolymerizable monomer system and a primary absorbent filler for the liquid system which absorbs sufficient of the liquid system to give a solid, particulate, free flowing mixture and which releases absorbed liquid under pressure or shear during moulding conditions. Suitable absorbent fillers are diatomites, bentonite and absorbent silicas. The compositions of the examples comprise an unsaturated polyester prepared from propylene glycol, diethylene glycol, phthalic anhydride, isophthalic acid and maleic anhydride dissolved in styrene and containing hydroquinone, benzoyl peroxide paste, zinc stearate, stearine, polypropylene adipate, polystyrene, calcium carbonate, corn flusk, diatomite, polypropylene sebacate, polyvinyl chloride and milled glass fibres.
Patent GB-455996-A (GB)
Title: Improvements connected with wheels of tractors of the agricultural type
IPC: B60B15/00
Filed: 1935-05-03
Abstract: 455,996. Vehicle wheels. GOODWIN, H., and ADAMS, G. H., Chapel Lawn, Bucknell, Shropshire. May 3, 1935, No. 13165. [Class 144 (i)] A detachable cleat, adapted to be fitted to the cross-strake 4 of a tractor wheel, is formed with a projecting lug 7, a bifurcated portion 9 for rigidly engaging the strake 4, and a flange 6 by which the cleat is bolted to the wheelrim 1. In the construction shown, the cleat is formed from a length of mild steel with a weld at 8 to produce the solid lug 7.
Patent GB-1056053-A (GB)
Title: Polycyclic organic compounds
IPC: C07C13/605
Filed: 1965-03-29
Abstract: Novel bicyclo-[4,2,1]-nonanes and mono-, di- or tri-olefinic derivatives and hydrocarbyl derivatives thereof are represented by the formula <FORM:1056053/C4-C5/1> in which the dotted lines represent optional olefinic linkages, each R represents a C1-C10 hydrocarbon group having no non-aromatic unsaturation and m is 0 or an integer from 1-8. The di- or tri-olefins are prepared by thermal isomerization of a tricyclo-[4,2,1,02,5] nonene or nonadiene, see Specification 1,056,054 at 200-500 DEG  C., according to the equation <FORM:1056053/C4-C5/2> Alternatively, the triolefins are formed together with tricyclononadienes by the pyrolysis at 200-500 DEG  C. of a bicycloheptadiene dimer (see Specification 979,778) according to the equation <FORM:1056053/C4-C5/3> More or fully saturated derivatives are obtained by partial or complete hydrogenation of the olefins.
Patent GB-1149594-A (GB)
Title: Remotely controllable valves
Inventor: CLARK RICHARD JOHN
IPC: F15B21/08
Filed: 1967-03-21
Abstract: 1,149,594. Fluid-pressure servomotor systems. RACINE HYDRAULICS & MACHINERY Inc. March 21, 1967 [April 26, 1966], No.13277/67. Heading G3P. The degree of communication between a fluidpressure line 20 and a tank or exhaust 21 is determined by the position of a hollow relief valve spool 23 grooved at 25 and biased by a spring 24 to a position in which such communication is broken. Pressure in the inlet 20 is transmitted, via channels formed in the valve body 10, to the left-hand side of the spool, (as seen in the drawing) and also to a line 36. From the interior of the spool, the pressure is transmitted, via an orifice 33, to a chamber 35 having a passage 65 leading to an exhaust port 43 and controlled by a valve 40, the valve being biased on to its seat by a ram 50 which has a cross-sectional area ten times greater than that of valve 40 and its uppermost side in fluid communication with a second chamber, (54, Fig.2, not shown), into which fluid-pressure is applied from line 36. The second chamber is provided with a passage (56, Fig.2), which leads to a second exhaust and is controlled by a second valve member (57) biased on to its seat by a solenoid 75. The current supplied to the solenoid determines the maximum pressure sustainable within the second chamber, before the second valve unseats, and hence the maximum pressure acting downwardly on the ram which inturn determines the pressure at which valve 40 unseats to relieve pressure within chamber 35 and so permit the spool to move to the right.
Patent GB-1457809-A (GB)
Title: Composite printed circuit board fas
IPC: H05K7/20
Filed: 1974-03-26
Abstract: 1457809 Printed circuit component assemblies RCA CORPORATION 26 March 1974 [28 March 1973] 13381/74 Heading H1R A printed circuit comprises an insulant board 2 of e.g. fibreglass-epoxy to which is laminated and riveted a sheet metal e.g. sheet or aluminium board 6 having a laminar portion 8 and periphery 10 upturned into mounting flange 24 with an opening 12 therein exposing an area 14 of the insulant board. The latter is perforated at 6 for the lead wires of e.g. resistors, capacitors, transistors or transformers and at 8 to receive sockets of plug in modules or circuit boards. The underside 20 has a network of printed conductors 22 to which the leads are soldered, and metallized ground plane and screen areas 23. The upper side may have conductors 25 interconnecting the holes 16 and may be insulatedly located on metal board 6. The latter is also upset into a metal screen 26 adjacent the opening 12, and may have standoffs 28 mounting e.g. power transistors for cooling. Openings 30 surround perforations 16 to prevent shortcircuiting of the leads. Other standoffs 32 for heat generating units may be formed adjacent the edges of the metal board for heat generating components with an adjacent upset shield 34. In a modification (Figs. 4, 5 not shown) the metal board may cover a laterally disposed portion of the insulant board with upset shield flanges also serving to mount heat generating components on brackets. Lead openings may be provided and slots e.g. for canned electrolytic capacitors may be provided in the insulant board. A rectangular opening through the superimposed insulant and metal boards may have adjacent upset metal flanges to mount and ventilate high dissipation resistors. A modified mount for heat dissipating components comprises (Fig. 6 not shown) a Z shaped upset of the metal board, the horizontal leg of which supports a resistor with leads extending downwardly to engage apertures of the insulant board.