baber/WOPTO huggingface dataset:
Patent GB-245282-A (GB)
Title: Improvements in furnaces
IPC: F23H11/10
Filed: 1925-01-21
Abstract: 245,282. Parker, T. R. Jan. 21, 1925. Grates.-In a travelling grate comprising groups of firebars linked together, the outer bars 29 of each group, Figs. 4 and 6, are each formed with a central portion of triangular cross-section and are arranged with their apices. oppositely disposed, while the intermediate bars 28 have their central portions triangular in cross-section and so arranged as to provide upwardly-tapering spaces 31 for the admission of steam and air between the bars. The bars of each group are provided at the ends with projections 26 and recesses 27 to receive pins 25. Spaces for the admission of air are also provided at 32, 33. Transverse air channels 14, Figs. 7 and 8, are arranged beneath the upper run of the grate, the sides of the channels being provided at their upper edges with cupped extensions 15 for the reception of rollers 16 forming bearings for the grate-bars. Air is supplied to the channels through detachable tubes 19 by inducing-jets of steam or air from nozzles 20. The grate is supported on multi-sided drums carried by a removable frame.
Patent GB-161713-A (GB)
Title: Improvements in conveyors
IPC: B65G17/06
Filed: 1920-01-21
Abstract: 161,713. Clough, H. Jan. 21, 1920. Endless-chain conveyers with slat and lath carriers; driving-gear; guiding. - An endless conveyer is composed of steel plates A mounted on a chain B provided with rollers C which run in a central channel D. The return run is supported by wooden rollers E. The conveyer is preferably made in sections of six feet length connected by pins F or by means enabling it to be run in a non-straight face. The conveyer is coupled to the motor by a universally jointed shaft.
Patent GB-1382251-A (GB)
Title: Methods and apparatus for shaping solid materials and shaped struc tures
IPC: B26D1/00
Filed: 1971-01-14
Abstract: 1382251 Cutting plastic materials G K SWEET 27 March 1972 [14 Jan 1971 29 Jan 1971 1 April 1971] 1892/71 3435/71 and 8450/70 Heading B5A In a method of producing a shaped body from a block of solid material, e.g. of foamed polystyrene, the block 15 is conveyed on rollers 14 past an electrically heated cutter wire 35 shaped to a desired profile and mounted in bearings 36 secured to rods 38 reciprocable vertically in guides 40 and driven by a variable speed motor 60 via crank wheels 46 and links 44. The motor also drives, through adjustable gearing, wheels 22, 23 which convey the block which is guided by spring-loaded wheels 16, 17. The cutter wire is pivotally mounted in its bearings and swings about the bearing axes during its vertical reciprocation; for this purpose a rod 52 is attached to the wire and carries a weight 52 causing the rod to rest on an adjustably positioned pin 54 during such reciprocation. In modified constructions the wire (i) is given an independent rotary movement, which may be continuous, about a horizontal axis, (ii) rotates or oscillates about a vertical axis, (iii) oscillates about a horizontal axis, (iv) is reciprocated horizontally by a motor-driven cam, (v) is stationary and the block is of circular cross-section and rotated about its axis whilst being fed past the cutter.
Patent GB-467117-A (GB)
Title: Process for the destructive hydrogenation of solid carbonaceous materials
IPC: C10G1/08
Filed: 1936-01-21
Abstract: The destructive hydrogenation of solid carbonaceous materials is carried out in the presence of catalysts comprising solutions of molybdenum and/or tungsten compounds obtained by treating with sulphuric acid substances containing molybdenum and/or tungsten in a form insoluble in water.  Sulphidic tungsten and molybdenum compounds, e.g. sulphidic ores, are particularly suitable and the carbonaceous materials are preferably impregnated with the sulphuric acid solution containing sufficient free acid to neutralize the basic constituents of the coal.  A small amount of nitric acid may be added to the sulphuric acid and the impregnation may be aided by the use of wetting agents, e.g. isopropylnaphthalenesulphonic acid.  Residues of the destructive hydrogenation of brown coal with a molybdenum catalyst are extracted with ammonium carbonate the solution obtained treated with ammonium sulphide and precipitated with acid as described in Specification 459,554.  The molybdenumsulphide obtained is treated for three hours with sulphuric acid and the solution diluted with water is used to impregnate brown coal in a mixing worm. The coal is dried and destructively hydrogenated in the form of a paste.  A 95 per cent conversion to liquid products is obtained. Molybdenite may be treated similarly.
Patent GB-1037841-A (GB)
Title: Nuclear reactor
Inventor: COOKE BRIAN FREDERICK
IPC: G21C17/04
Filed: 1964-01-16
Abstract: 1,037,841. Reactor pressure vessels. NUCLEAR POWER PLANT CO. Ltd., and A.E.I. JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., [trading as NUCLEAR POWER GROUP]. Nov. 3, 1964 [Jan. 16, 1963], No. 1946/64. Heading G6C. A gas-cooled graphite-moderated nuclear reactor is housed in the concrete pressure vessel 1 having access passages 2 in the upper wall 1a. The charge machine 5 is movable over the wall 4a to connect with the standpipe 3. The wall 4a is formed of a metal grid 4a, and slabs 4a3 of radiation absorber. Burst fuel element detector pipes 7 are supported by the grid and the interlock door 8 permits access to the space between 4a and 1a. Thermocouple leads may also be supported by the grid.
Patent GB-672332-A (GB)
Title: Improvements in or relating to negative feedback amplifiers
IPC: H03F1/36
Filed: 1950-01-25
Abstract: 672,332. Valve amplifying circuits. WESTERN ELECTRIC CO., Inc. Jan. 25, 1950 [Jan. 26, 1949], No. 1961/50. Class 40 (vi). In a negative feed-back amplifier the loop gain, over the larger part of the useful passband, decreases with increase of frequency substantially at a rate of 6 db. per octave and in addition is substantially equal to the secant of the corresponding phase-shift. The arrangement is more particularly applicable to obtaining a high degree of gain stability in wideband amplifiers, in which it is difficult to apply more than a limited amount of feed-back. The Specification gives an exposition of the theoretical considerations upon which the invention is based, referring to Specification 514,567 and U.S.A. Specification 2,102,671 and describes its application to a three-stage amplifier of low-pass type, Fig. 1. Loop gain and phase-shift characteristics are chosen, Figs. 2, 3, respectively, such that at high frequencies the gain falls at 18 db. per octave, the corresponding phase-shift being compensated by a horizontal gain-step at - 8 db. extending from f/fo= 2 to f/fo = 3. The gain at f/fo = 1 is made 4 db. to satisfy stability requirements and, in accordance with the invention, rises at lower frequencies at 6 db. per octave, being made also to equal the secant of the corresponding phase-shift. Networks N1, N2, N3, Fig. 1, which fulfil these requirements are shown in Figs. 7, 9 and 5, respectively. The intervalve coupling network of Fig. 7 comprises parasitic circuit capacity C3 shunted by a high-value anode feed resistance R3, while the network of Fig. 9 comprises parasitic capacity C4 in shunt with series-connected elements L2, R4, R5, respectively, comprising inductance and resistances, the resistance R5 being shunted by a further capacity C5. The feed-back network, Fig. 5, which is of constant impedance within the pass-band of the amplifier, comprises in shunt resistance-capacity and resistanceinductance arms R1, C2 and R2, L2 respectively, together with the parasitic capacity C1. The invention may also be applied to. amplifiers of the band-pass type by utilizing the known transformations.
Patent GB-1022632-A (GB)
Title: N-methyl 3-methyl-5-ethyl phenyl carbamate
Inventor: BROOKER PETER JOHN
IPC: C07C271/06
Filed: 1962-01-22
Abstract: The invention relates to N-methyl-3-methyl-5-ethyl phenyl carbamate. This compound may be prepared (1) by reacting 3-methyl-5-ethylphenol with methyl isocyanate, preferably under anhydrous conditions, or (2) by reacting 3 - methyl - 5 - ethylphenyl chloroformate (from 3-methyl-5-ethylphenol and phosgene) with methylamine.  An example of each of these methods is given.  The compound is useful as an insecticide (see Division A5).ALSO:N-methyl 3-methyl-5-ethyl phenyl carbamate (see Division C2) is used as an insecticide.  For this purpose, the compound may be mixed with solid diluents and (or) wetting agents and formulated as solid compositions, wettable powders, aqueous dispersions or organic solutions.  A number of solid diluents and dispersing agents are specified.  The compositions may be mixed with other agricultural chemicals, e.g. with other insecticides or with fungicides such as copper oxychloride, thiuram or ethylene-1, 2-bis-dithiocarbamate salts.  In examples of compositions containing the compound, (1) an aqueous concentrate containing the compound and an octylcresol polyethylene oxide condensation product is prepared, and (2) a water-dispersible solid composition is prepared by grinding the compound with china clay and sodium dodecylbenzene sulphonate.  Particulars of the use of the products of the examples are also given.
Patent GB-960562-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G4/015
Filed: 1963-01-18
Abstract: 960,562. Capacitors. TELEGRAPH CONDENSER CO. Ltd. (Sprague Electric Co.). Jan. 18, 1963, No. 2221/63. Heading H1M. A round or flat self-heating capacitor comprises two electrodes separated by a non- porous plastic film, at least one such electrode being of porous material metallized on both faces and the combination being impregnated with a dielectric resin material subsequently solidified in situ. In Fig. 1, the electrodes each comprise a porous base 1, e.g. kraft or other paper, metallized on both sides and one end at 2, with an un-metallized margin 3 on each side at the other end and arranged with the metallized ends alternating in position to be separated by films 4 of porous plastic dielectric material. Metal plate or deposit electrodes 5 at each end, contacting the corresponding metallized electrodes provide terminals. The assembly may be flat or rolled, alternate electrodes only may be porous based, or the porous electrode bases may be metallized over their entire surfaces; the electrodes being staggered in location to extend alternately for connection on each side of the assembly. Thereafter the structure is impregnated with a dielectric material e.g. a polymerizable resin subsequently setting to a solid, in situ. In a modification (Fig. 4) an electrode of lamellar construction comprises a porous base 1 covered by a metallized layer 2, while the opposed electrode 10 is of conventional foil separated by a plastic dielectric film 11; tabs 12, 13 being inserted in the assembly for connection. The porous electrode base may also be reconstituted mica paper, glass cloth, asbestos, or a porous resin film e.g. porous P.T.F.E. The dielectric film may be of polyethylene terephthalate, polystyrene, cellulosic esters and ethers e.g. cellulose acetate, sorbate polyamide, or polyesters e.g. 1.4 cyclohexylene bimethylene terephthalate, polycarbonate. The metallized layer may be zinc, aluminium, silver, tin, lead, or nickel deposited by condensation, chemical deposition, or gas decomposition. The impregnant may be a polymerizable resin e.g. polyvinyl carbazole, polystyrene, or a thermosetting resin e.g. copolymerized polyvinyl toluene, polybutadiene, divinyl benzene, or alternatively mineral oil, mineral wax, silicone oil, castor oil, chlorinated diphenyl, or other chlorinated aromatic hydrocarbons.
Patent GB-1418504-A (GB)
Title: Water-stops
IPC: E04B1/684
Filed: 1973-01-16
Abstract: 1418504 Waterstops K E FALEIJ 16 Jan 1973 [24 Jan 1972] 2228/73 Heading E1B Rubber or plastics sealing strips 1 for bridging gaps between adjacent cast concrete sections are held in shape during casting by wire clips 9 engaging holes 8. In a modification tubular portions 5 are omitted and the upper edge of the strip is beaded and the lower edge flanged.
Patent GB-234745-A (GB)
Title: Means for use in transporting artillery
IPC: F41A23/26
Filed: 1925-01-26
Abstract: 234,745. Fornaca, G. Jan. 26, 1925. Field carriages.-A two-wheeled carriage 1 for rapidly transporting a field gun has a resilient suspension which is attached to the gun trail 6, as by bolts 3, when the trail is raised. On canting the trail downwards, the field gun is supported clear of the ground and the gun barrel can then be moved to the recoil position to bring its weight over the axle of the transport carriage. The eye 8 is coupled to another gun or to a tractor in the usual way.
Patent GB-1298245-A (GB)
Title: Micro-adsorption detectors
Inventor: MUNK MINER NELSON
IPC: G01N30/62
Filed: 1970-01-16
Abstract: 1298245 Measuring temperature electrically VARIAN ASSOCIATES 16 Jan 1970 [27 Jan 1969] 2317/70 Heading G1N Apparatus for analyzing the constituents of the fluid-flow 4 from a chromotograph column 3 comprises three detector cells serially disposed along the fluid-flow path, each cell including a thermistor 7. Sample cells Si, S 2  contain different selective adsorbents 5 while a reference cell R contains an inert material. The sample cells may be each connected in a separate Wheatstone bridge with a reference cell selectively connectable by a switching network 17. Output signals E 1 , E 2  are synchronously detected and fed to a differential comparator (19), Fig.4 (not shown) or to galvanometer recorders (21, 22), Fig.5 (not shown). Alternatively the switching network and synchronons detector may be dispensed with by adding a fourth (reference) cell (R 2 ), Fig. 6 (not shown) when the thermistors are connected into two separate bridges Fig.7 (not shown). An arrangement which compensates variations in fluid-flow rate, Fig.9, uses four cells of which three are reference cells. A section through a four-cell detector Fig.12 shows a metal disc 41 to isolate thermally the downstream pair of detector cells from the upstream pair.
Patent GB-1473062-A (GB)
Title: Colouration process
IPC: D06P1/38
Filed: 1975-01-20
Abstract: The textile material is printed with a mixture comprising   a) a dye capable of forming a covalent bond with the fibres of the textile material or of covalent incorporation into the product of curing a curable completely methylol-alkylated precondensate of amino-containing compounds and formaldehyde, b) a curable completely methylol-alkylated precondensate of amino-containing compounds and formaldehyde,   c) a macromolecular material with acidic groups, and d) a volatile basic substance present in such an amount that the pH of the mixture is at least 8. Then the printed textile material is heated to volatilise the basic substance and to cure the completely methylol-alkylated precondensate of amino-containing compounds and formaldehyde.   The process is notable for a high degree of dye fixation, so that the printed textile material has to be washed less, if at all, pre-sale.
Patent GB-1502195-A (GB)
Title: Windshield wiper assembly
IPC: B60S1/40
Filed: 1976-01-21
Abstract: 1502195 Windscreen wipers TRIDON Ltd 21 Jan 1976 [21 Jan 1975] 02385/76 Heading A4F  To prevent a windshield wiper blade lifting from the windshield due to wind effects, the primary and secondary yokes 14, 16 are each provided with a triangular cross-section with the apex 32, 32a of the triangle pointing away from the squeegee 20 and its backing element 18 so that wind pressure acting in the direction A (Fig. 4) tends to press the blade against the windshield, the yokes 14, 16 also having flat bottom surfaces 34, 39 which, together with the flat surface of the backing element 18, define a smooth-sided gap through which air can pass without turbulence. The yokes 14, 16, which are desirably all made of a plastics material such as polycarbonate, are pivotally attached together by pins 50 of the primary yoke 14 engaging in bores 48 in openings 44 of the secondary yokes 16. Claws 150 of the secondary yokes embrace the backing element 18 which has a dimple 154 and deformed portions 144, 148, Fig. 7 which act as end stops. A notch (158) in the backing element 18, (Fig. 5 not shown) allows its assembly with the secondary yokes. The primary yoke 16 has a rectangular opening 28 whose side walls have bores 68 for receiving pivot pins 62 of a connector Fig. 8 for a wiper arm 76. The connector shown in Fig. 8 is for a J-bend arm. Connectors for bayonet type arms and wrist action type arms are also disclosed (Figs. 9-11 not shown).
Patent GB-174631-A (GB)
Title: Change speed gear for motor cars and the like
IPC: F16H15/56
Filed: 1922-01-26
Abstract: 174,631. Matteucci, R. Jan. 27, 1921, [Convention date]. Void [Published under Sect. 91 of the Act] Variable-speed toothed or chain gearing of countershaft type is modified by the use of a friction epicyclic train which slides as a whole to effect a direct or clutch drive and the next lower speed, other speeds and reversed driving being effected as usual. The countershaft 3., through which and through gearing such is 6, 7, 8 the lower speeds are effected, is driven by a pinion 4 secured to the driving-shaft 1. The epicyclic train comprises friction planet gears 11 engaging a sun gear 17 and a split annulus 12. The gears 11 are mounted upon a carrier 9 splined on the driven shaft 2. The annulus 12 is carried by a disc 13 sliding on splines or dogs 16 on the shaft 1. In the configuration shown in Fig. 1, the sun gear rotates idly with reversed direction and there is no drive. The train is moved bodily by a fork &c. engaging a groove in a sleeve 19 secured to the sun gear. When the train is moved to the left, clutch teeth 15 upon the carrier 9 engage the dogs 16, and the shaft 2 is driven directly. When the train is moved to the right, teeth 21 upon the sleeve 19 engage a brake or stopping-device the effect of which is to cause the shaft 2 to be driven at reduced speed by the planet gears rolling on the fixed sun gear. This stopping-device comprises a fixed disc 23 with teeth 22 and a loose disc 34, Fig. 3, with like teeth 32. The revolving teeth 21 are first picked up by the teeth 32, causing the disc 34 to yield or turn. Fluid is then admitted through a duct 35 into a disc-shaped space A causing friction upon cone surfaces B to arrest the turning of the disc 34 until the teeth 21 can be made to engage the teeth 22 also.
Patent GB-1109331-A (GB)
Title: Method of manufacturing electrical socket contacts
Inventor: HEATH CLARENCE WILLIAM
IPC: H01R13/11
Filed: 1966-01-19
Abstract: 1,109,331. Connector contacts. CARR FASTENTER CO. Ltd. 8 Nov., 1966 [19 Jan., 1966], No. 2486/66. Heading. H2E. [Also in Division B3] An electrical socket contact comprises a set of curved resilient fingers 3, 4 nesting within a set of resilient fingers 1, 2 both sets of fingers being integral with a folded over spine 5. The free ends of the fingers are slightly spaced apart and the gaps therebetween define a longitudinal slot for receiving a plug contact.
Patent GB-683141-A (GB)
Title: Improvements in or relating to substituted piperazines
IPC: C07D295/215
Filed: 1950-01-31
Abstract: The invention comprises substituted piperazines:  <FORM:0683141/IV (b)/1> where A is <FORM:0683141/IV (b)/2> R is hydrogen or methyl, R1 is an alkyl group having not more than four carbon atoms, R11 is hydrogen or an alkyl group having not more than four carbon atoms, X is halogen, R11 being an alkyl group when A is <FORM:0683141/IV (b)/3> and the hydrohalide salts thereof.  The compounds may be prepared by treating a piperazine derivative:  <FORM:0683141/IV (b)/4> with a dialkylthiocarbamyl halide NR12.CS.X in a solvent, followed if desired by treatment with an alkyl halide, R1X.  In the examples: (1) thiophosgene is treated with diethylamine to give N-diethylthiocarbamyl chloride, which is treated with 1-methylpiperazine to give 1-diethylthiocarbamyl-4-methylpiperazine hydrochloride.  In a similar way to the last step there is prepared 1-diethylthiocarbamylpiperazine, 1-dimethylthiocarbamyl-, 1-di-n-propylthiocarbamyl-, 1-di-isopropylthiocarbamyl-4-methylpiperazines, and 1-diethylthiocarbamyl-2 : 4 : 5 - trimethylpiperazine. 1-Diethylthiocarbamyl-4-methylpiperazine is treated with methyl chloride in ether to give the quaternary salt.  N-Di-n-propyl- and N-di-isopropylthiocarbamyl chloride is prepared as above.
Patent GB-1079514-A (GB)
Title: Improvements in or relating to the treatment of hides or skins
IPC: C14C3/00
Filed: 1965-01-20
Abstract: In treating hides or skins, they are subjected to light pre-tanning, e.g. drumming or paddling, for 10 to 45 minutes, in an aqueous 0.1 to 0.5% solution of formaldehyde, then frozen, e.g. at 10 DEG F., for a substantial time, e.g. 12 hours, then thawed and partially dehydrated, as by squeezing them in a mangle or spinning them in a spin-dryer, and drying them at 30 DEG C., until they contain 20%, by weight, of water.  The hides or skins, thus prepared, may be impregnated with an impregnant comprising one or more than one of the following: waterproofing compounds; tanning materials; oils; fats, greases or waxes; dyes; natural gums or resins; synthetic polymers; active monomers as defined and inert fillers. The impregnant may be in the form of an aqueous solution, a solution in a solvent or an aqueous emulsion.  Impregnation may be effected by dipping or drumming the prepared hides or skins in the impregnant, or by means of a pad-type mangle or roller system operating in a bath of the impregnant.  Prepared hide, impregnated with 40% by weight of styrene-butadiene polymer and dried, is rubber-like, waterproof and wear-resistant. Prepared light skins, impregnated with an aqueous 10% emulsion of cod oil, then dried and degreased, may be used as wash leathers.