baber/WOPTO huggingface dataset:
Patent GB-1284510-A (GB)
Title: Acceleration enrichment circuit for electronic fuel control systems
IPC: F02D41/10
Filed: 1971-01-15
Abstract: 1284510 Fuel injection systems BENDIX CORP 15 Jan 1971 [17 Feb 1970] 2135/71 Heading G1N In an I. C. engine fuel injection control system fuel enrichment is provided during acceleration by a series of opening pulses applied to the injectors in addition to the main opening pulses. As shown, selected injectors are energized when a transistor 20 is conductive. Each main opening pulse is composed of two pulses, a first of which is provided by a multivibrator 28, 30 at a frequency dependent upon engine speed and having a duration dependent upon intake pressure (sensor 12). The second pulse occurs immediately after the first and has a duration dependent upon engine temperature (sensor 14). The two pulses are applied via resistors 22, 24 respectively to render transistor 20 conductive. Upon sensing a need for acceleration at 82, Fig.2, e.g. by a switch connecting point 82 to ground, the voltage jump on the collector of transistor 84 is applied to point C for a duration dependent upon the limiting voltage set by Zener diode 88. The pulse at point C renders transistor 20 conductive and thus causes additional fuel to be supplied by the most recently actuated injectors. Also the sensed need for acceleration at point 82 allows the trailing edge of the second pulse received at point B to render a transistor 94 non- conductive for a period determined by the charging of capacitors 98, the resulting pulse on the collector of transistor 94 rendering transistor 20 conductive thereby increasing the amount of fuel. The sequence of pulses produced by transistor 94 lasts for as long as the sensed need for accleration lasts.
Patent GB-634488-A (GB)
Title: Process for the preparation of metallisable ª¤-hydroxymonoazo dyestuffs
IPC: C09B45/14
Filed: 1948-01-23
Abstract: Metallizable o-hydroxymonoazo dyestuffs are manufactured by esterifying or etherifying the hydroxy group in p-position to the azo group in metal (e.g. copper, cobalt, nickel, magnesium, iron, chromium, aluminium, zinc, cadmium or lead) complexes of o-hydroxymonoazo dyestuffs from o-diazophenols or o-diazonaphthols and resorcinol or b -resorcyclic acid, and then removing the metal by the action of acids or salts (e.g. mineral or organic acids such as hydrochloric or oxalic acid, acid salts such as acid sodium oxalate, or alkali cyanides or sulphides).  Suitable diazo components for making the starting materials are 2-aminophenol-4-sulphonic acid and its amide and o-carboxyanilide, 6 - chloro - 2 - aminophenol - 4 - sulphonic acid, 4 - chloro - 2 - aminophenol - 5 - sulphonic acid,4 - methyl- and 4-nitro-2-aminophenol-6-sulphonic acid, 4-nitro-2-aminophenol-6-carboxylic acid, 4-nitro-, 4-chloro-, 4 : 6-dichloro- and 4-chloro-6 - nitro - 2 - aminophenol, and 1 - amino - 2 - naphthol-4-sulphonic acid and its 6-nitro derivative.  Suitable reagents for the esterification or etherification (which may, if desired, be effected simultaneously with the metallization) are: aliphatic, araliphatic and aromatic sulphonyl halides, e.g. methane- and ethanesulphonyl chlorides, benzylsulphonyl chloride, naphthalene - a  - and b  - sulphonyl chloride, benzenesulphonyl chloride, p-toluenesulphonyl chloride, and p-chloro-, m-nitro-, m-nitro-p-chloro - and m - carboxy - benzenesulphonyl chlorides; halides of carboxylic acids, e.g. benzoyl chloride and its substitution products; alkyl, alkenyl and aryl halides, e.g. allyl bromide, butyl bromide and benzyl chloride; and alkyl sulphates and arylsulphonic esters, e.g. dimethyl sulphate and ethyl toluenesulphonate.  The products dye wool by the after-chroming process in red-brown, red, bordeaux or violet tints, and many of them are suitable for the neutral single bath chroming process.  Examples and a table illustrate the use of certain of the reagents specified above.
Patent GB-1222091-A (GB)
Title: Improvements in or relating to air separators for grain and similar material
Inventor: LAINCHBURY ERNEST JOHN
IPC: B07B4/02
Filed: 1968-01-15
Abstract: 1,222,091. Pneumatic separator. LAINCHBURY & SONS Ltd. 14 Jan., 1969 [15 Jan., 1968], No. 2229/68. Heading B2H. In an air separator for removing light impurities from grain, the mixture of grain and impurities is fed via a tube 9 and an adjustable nozzle 10 on to a platform 5 mounted within an air duct 1, 2, the nozzle being so adjustable on the tube 9 as to guide the mixture to fall on the platform at a location resulting in a substantially uniform flow of the grain over the edge of the platform around its periphery while an upward flow of air carries the impurities up the duct. The air is sucked in from below the platform by a fan (not shown) connected to the top of the duct. The platform 5 may be fixedly mounted on a post 6 carried by a spider 7 fixed to the duct and may be provided with vanes that impart a swirling motion to the rising air. Alternatively, the platform may be mounted to spin about its central axis due to the reaction of the air stream on the vanes. The nozzle 10 extends from a sleeve 12 telescopically fitted on the end of the tube 9 and axially and rotatably adjustable relative to the tube 9 by means of a rod 13.
Patent GB-112536-A (GB)
Title: Improvements in Hydraulic Clutches for Motor Vehicles.
Inventor: HEALY JOHN
Filed: 1917-02-16
Abstract: 112,536. Healy, J., and Carter, A. E. Feb. 16, 1917. Clutches and speed - varying mechanism.- In a n hydraulic clutch, cylinders are formed in a fly-wheel b on the driving-shaft a, and pistons d are connected to a crank-pin on the driven shaft, the speed being controlled by sliding sleeves g provided with spirally arranged ports i.
Patent GB-912212-A (GB)
Title: Diversity radio receiving systems
IPC: H04B7/08
Filed: 1960-01-22
Abstract: 912,212. Radio receiving systems. STANDARD TELEPHONES & CABLES Ltd. Jan. 22, 1960 [Jan. 27, 1959], No. 2395/60. Class 40 (5). In a diversity receiving system for two signals having different centre frequencies, the two signals are amplified by a common amplifier and subsequently combined in a linear addition circuit. As shown, in a system which may operate on space or frequency diversity, incoming signals in the respective channels are converted to intermediate frequencies F1, F2, and supplied to the common amplifier 3. The output of the amplifier is supplied to filters 5, 6, which select the signals F1, F2, and supply them either to a predetection adding circuit 18, or post-detection adding circuit 29, according to the position of switches 16, 17. In the position shown, the two signals are supplied to respective mixers 21, 24, converted to a common frequency F, a phase comparator 28 providing a control signal to bring the two signals into phase coincidence, and added in a network 19 for subsequent detection. In the alternative position the frequencies F1, F2, are supplied via respective amplifiers 40, 40a, to limiters 32, 33. The limiters include a time constant 43 biasing the diodes 41, 42, so that rapid variations of signal do not affect the limiting level but the limiting is adjusted automatically to long-term signal changes. The outputs of the limiters are supplied to discriminators 36, 37, respectively, and the demodulated signals added in network 38.
Patent GB-1402533-A (GB)
Title: Method of providing a fluid inlet or oultet in the wall of a  container
IPC: F16L41/08
Filed: 1971-07-09
Abstract: 1402533 Pipe joints D C TISSINGTON 6 July 1972 [9 July 1971] 2417/75 Divided out of 1402532 Heading F2G A flanged plastics spigot 49 is secured in the wall 48 of a plastics container by the inclined inward barbs on a metal disc 51. Preferably, a resilient washer 53 is interposed between the flange and the container wall. A plastics tube can be attached to the spigot.
Patent GB-1357713-A (GB)
Title: Cooled rotor blades for gas turbines
IPC: F01D5/20
Filed: 1973-01-17
Abstract: 1357713 Turbine blades BROWN BOVERISULZER TURBOMACHINERY Ltd 17 Jan 1973 [18 Jan 1972] 2480/73 Heading FIT A gas turbine rotor blade has a cooling air duct 9 extending along leading edge 10, terminating in a trough 11 formed in the blade tip and having an air outlet on the convex side adjacent trailing edge 17. Additional ducts 15, 16 separated by partition 18 direct cooling air from root chamber 8 to exits 19, 20 respectively either immediately at trailing edge 17 or on one or other side thereof. Exits 19, 20 are provided with restrictors and guides 21, 22. Ducts 15, 16 may be finned. In a modification, Figs. 5 to 7 (not shown) duct 16 is not provided but duct 15 incorporates a reversal through 180 degrees at the blade tip to form a second part (25) which extends back towards the root and has trailing edge exits 19.
Patent GB-416827-A (GB)
Title: Improvements in and relating to reciprocating steam engine plants with exhaust steam turbines
IPC: F01D15/02
Filed: 1934-01-24
Abstract: 416,827. Motor power plant. BAUER, G., 82, Mittelweg, Hamburg, Germany. Jan. 24, 1934, No. 2499. [Class 110 (iii).] In steam power plant for ship propulsion comprising a reciprocating engine and one or more geared exhaust turbines, the turbine or turbines are divided into several blade groups or turbines so that, by varying the path of flow through the groups, their output at low loads or small admission to the reciprocating engine can be correspondingly reduced. Several arrangements are described. In Fig. 1, the exhaust of the L.P. cylinder N of the reciprocator K is controlled by a valve V which passes it either to the condenser branch B, or to a turbine A having a group of blades a and a doubleended group b. A branch pipe d is arranged in the space leading to the condenser, and is provided with valves f, g, which enable the path of flow of steam through the different blade groups to be altered as desired. The groups in the double-ended flow section may be arranged face-to-face, the valve arrangement being suitably modified. Fig. 6 shows an arrangement of straight flow turbine having blade groups p, q, r, and byepass valves ql, r<1>, s', t<1>, which enable one or other of four steam paths 1-4 to be selected. When doubleended turbines are used, the two parts, which are used selectively, may have different characteristics. In a modification, three exhaust turbines working, normally, in parallel and geared to the main shaft, are provided, the valves being arranged so that one or more may be cut out of operation. In a multi-shaft ship in which each shaft is driven normally by a reciprocator and an exhaust turbine, at low loads one or more turbines may be cut out, the steam being diverted to a turbine still in operation, and the corresponding condenser being closed down.
Patent GB-1435271-A (GB)
Title: Device for mounting a pane panel or the like in a corresponding opening in a wall door or the li
IPC: E06B3/58
Filed: 1974-01-18
Abstract: 1435271 Glazing ELECTROLUX AB 18 Jan 1974 [22 Jan 1973] 02513/74 Heading E1R A pane 11 is secured in an aperture by means of pairs of co-operating L-sectioned frames, each having one planar limb, e.g. 23a, and one U-sectioned limb, .e.g. 23b, the planar limb 23a of one frame being retentively engaged in the U-sectioned limb 22b of the other frame so that the other two limbs 22a, 23b define a channel receiving the pane 11. The U-sectioned limb 23b of said one frame engages over the edge of the aperture. A plastics moulding 24 is disposed in the channel.
Patent GB-542868-A (GB)
Title: Improvements in or relating to sound producing toys
IPC: A63H5/00
Filed: 1941-02-25
Abstract: 542,868. Sound producing toys. CHAR, Y. Feb. 25, 1941, No. 2543. [Class 132 (iii)] A sound-producing bean bag comprises a flexible outer casing 5, a normally outwardly expanded flexible body 7 within said casing and spaced from the walls thereof, said body provided with an air chamber, an air operated sound producing unit 10 in one wall of the body and operated by the passage of air there through into the body, and movable globular elements filling the space between the outer casing and the flexible body. The flexible body 7 is positioned by cords 9 as shown. Pressure and subsequent release causes deflation and subsequent inflation of the air chamber 7, the whistle 10 or other sound producing body being operated either on the intake or expulsion of air. The bean bag may have a number of air chambers 7, each of which may have a number of sound producing units 10.
Patent GB-725949-A (GB)
Title: Improvements in or relating to electrical liquid heater
IPC: F24H1/10
Filed: 1953-01-29
Abstract: 725,949. Heating liquids by electricity. RAINBOWS, Inc. Jan. 29, 1953 [April 12, 1952], No. 2578/53. Class 39 (3). An electric liquid heater comprises a series of drum and sleeve electrode units and means, e.g. manual switches, for connecting the units in parallel. A unit comprises a metal drum electrode 72 having hub-like extensions 73 on to which are screwed coupler members 90 thus clamping an outer metallic sleeve electrode 80 between sealing rings 86 and discs 82. Holes 76, 78 in the electrode 72 provide passageways for the liquid which is heated in the annular space 81, the liquid then passing to an adjacent axially aligned hub-like extension and passing through each of the said electrode units in turn (Fig. 4 not shown). The drum electrodes may be of different external diameters, and the sleeve electrodes may be of different. surface areas. The heater may be embodied in a hot coffee vending machine (Fig. 1 not shown).
Patent GB-777625-A (GB)
Title: Process for the manufacture of improved yarns
Inventor: SPEAKMAN RAYMOND HOLDEN
IPC: D02G1/02
Filed: 1955-01-28
Abstract: 777,625. Finishing yarns. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 11, 1956 [Jan. 28, 1955], No. 2608/55. Class 120 (3). In producing potentially bulky yarn composed of potentially crimpable continuous filaments of a synthetic linear polymer e.g. polyamides such as polyhexamethylene adipamide or polyesters such as polyethylene terephthalate, twisting (by a false-twisting device), heat setting, and untwisting steps all occur during the drawing of the filaments to several e.g. four, times their length as spun. As shown, undrawn melt spun yarn unwound from a bobbin 1 is led through a guide 2 to nipping feed rolls 3 rotating at a peripheral speed of 300 feet per minute and wrapped round a snubbing pin 4 heated to 80‹C. from which it is passed over a plate 5 heated to 150‹C., quenched in contact with a dressing- or size-applicator roll 6, and passed'through a false-twisting device 9, rotating at 88,000 revs. per minute, by which a temporary twist of 80 turns per inch, running back to the pin 4, is imparted : the yarn is drawn by a roll 7, rotating at a peripheral speed of 920 feet per minute, around which and a separator roll 8 the yarn is wrapped three times, taken round an idler roll 10 and a guide 11 and a ring spindle 12 to a bobbin 13 rotating at 7,000 revs. per minute. The yarn, as it is allowed to relax may be heated, as by steam, to enhance the " crimp " and the bulk may be increased by a rubbing motion to displace the filaments in relation to each other e.g. the yarn is passed between two moving leather belts, or by subjecting the yarn to the action of a stream of fluid, such as air, under pressure passing through a tube.
Patent GB-1030832-A (GB)
Title: Process for the extraction of aromatic hydrocarbons from mixtures of liquid hydrocarbons containing them
Inventor: LAUTIER JACQUES
IPC: C10G21/22
Filed: 1965-01-21
Abstract: Aromatic hydrocarbons are recovered from mixtures containing them by solvent extraction with a dialkyl sulphoxide and recovering the aromatics by contacting the extract in countercurrent with a solvent for aromatic hydrocarbons immiscible with dialkyl sulphoxide to obtain a second extract which is distilled to separate aromatics from the second solvent. The first extraction preferably includes the use of a reflux which may be a recycle of the final aromatic concentrate. The second solvent may be a paraffinic hydrocarbon fraction boiling above or below the aromatics.  Olefins are removed from the product by treatment with attapulgite or sulphuric acid.
Patent GB-177909-A (GB)
Title: Improvements in and relating to casting machines
IPC: B22D5/02
Filed: 1921-01-21
Abstract: 177,909. Alexander, A. E., (American Radiator Co.). Jan. 21, 1921. Plants; casting-machines; moulding-machines; treating mould and core materials.-The rotating carrier 15 of a casting plant is geared to a brake drum 30 under the control of a hand-lever 41<a> and supports a number of platforms 19 by means of brackets 18. These platforms are leaded with moulds at the position 19<c>, metal is poured at the position 19a, and the castings are removed at 19<e>, the flasks being replaced. At this station, used sand falls into a riddle 49, thence into a well 58, and is carried therefrom by buckets up to a shoot 66 to be used again in preparing moulds at the station 19<c>. As each platform reaches the position 19<a> in turn, the brake is applied to hold the carrier at rest whilst the different operations are performed; on releasing the brake, gravity revolves the carrier again. The platforms 19 are inclined to the horizontal, to facilitate filling the moulds with metal.
Patent GB-207430-A (GB)
Title: Improvements in or relating to window-lifting mechanisms
IPC: E05F11/38
Filed: 1923-01-30
Abstract: 207,430. Watkinson, A., Beckett, Laycock, & Watkinson, Ltd., and Harrison, C. E. Jan. 30, 1923. Sliding - window opening and closing apparatus of t h e kind which comprises a rotating screw and a nut engaging lazy - tongs connected with the window has the fixed pivot 27 of the system of links connected to the frame at one side of the screw 14 and the pivot 30 connected to the window bracket 31 at the opposite side. The nut 19 which carries the pivot 22 has an unscrewed extension 20 which is a sliding fit on the screw. The screw has a ball bearing at the base and is rotated by screw gearing 16, 17 and a handle. The spindle 30 may be housed in a slot 33 and have a shock-absorbing spring bearing 34, Fig. 4. In a modification for wide windows, two similar systems of links may be used, one on each side of the screw, the nut being provided with a yoke &c. carrying at each side a pivot for the links.
Patent GB-570206-A (GB)
Title: Improvements in chromium recovery
IPC: C22B34/32
Filed: 1942-03-03
Abstract: 570,206. Treating chromium ores. UDY, M. J. March 3, 1942, No. 2817. Convention date, July 5, 1941. Addition to 548,831. [Class 1 (iii)] Chromium-bearing material containing ferrous chromite, alumina, and silica is sintered or fused with lime or magnesia or both and the resulting product digested with a solution of an alkali metal compound under oxidizing conditions to extract a part of the chromium as chromate with or without extraction of alumina as aluminate. The sintering or fusion step may be carried out under neutral, oxidizing or reducing conditions ; by adding coke for example a portion of the iron content may be reduced and separated in the metallic form, silica may also be added to obtain a self-disintegrating product. When treating ores with a high alumina content aluminate may be recovered by using a 25 per cent. or stronger solution of caustic soda or sodium carbonate for the digestion ; otherwise a 10-20 per cent. solution may be used. The solution obtained may be treated for recovery of chromate and aluminate, if desired after continued use in the process to bring it to the required strength. The residue from the digestion step may be (1) roasted with lime with or without soda ash to produce chromate ; if in the fusion step sufficient lime has been used to provide more than 2 mols CaO to each mol or chromium oxide, iron oxide, alumina, and silica, no further lime need be added, (2) subjected to a gravity or floatation concentration treatment to obtain a concentrate high in chromium which may be roasted, or (3) treated with 10-30 per cent. hydrochloric or sulphuric acid to obtain a concentrate for roasting ; when using sulphuric acid the residue may be fused or roasted to assist extraction of unwanted values. The final chromate roast may be regulated to obtain exclusively calcium chromate or a mixture of sodium and calcium chromates. Specification 540,364 is referred to. The Specification as open to inspection under Sect. 91 comprises also subjecting the product of the fusion step to heat treatment with an alkali metal compound at a temperature above the fusion point of the latter and digesting the product with water. This subject-matter does not appear in the Specification as accepted
Patent GB-742937-A (GB)
Title: Improved educational device for demonstrating geographical contours
IPC: G09B25/06
Filed: 1953-02-02
Abstract: 742,937. Relief maps. JONES, T. J. Feb. 15, 1954 [Feb. 2, 1953], No. 2921/53. Class 146(2) [Also in Grcup V] A relief model comprises a shaped moulding of thin thermoplastic material of approximately uniform thickness with a flat flange 1 surrounding the map 2 and connected thereto by a step 3, both flange and step being integral with the moulding. Preferably, the material is transparent, and the model may then be placed over a corresponding contour map and markings made if required. Contour lines, &c., may be printed or marked on the model. The model may be formed by vacuum moulding by mounting the mould in a recess in a flat surface, placing the sheet of plastic material over the recess in an airtight manner by clamping round the edges, heating the sheet to the required temperature, and connecting a source of vacuum to perfora.- tions in the mould, so that external air pressure shapes the sheet to the mould. The sheet may be previously marked with distorted markings which given the required marking when the sheet is moulded, or the markings may be imparted by grooves or ridges in the mould.
Patent GB-370092-A (GB)
Title: Improvements in electric cut-outs
IPC: H01H85/044
Filed: 1931-01-31
Abstract: 370,092. Fusible cut-outs. APPAREILLAGE GARDY SOC. ANON., La Jonction, Geneva, Switzerland.-(Assignees of Soc. Francaise Gardy ; 23, Rue de la Voie des Bancs, Argenteuil, France.) Jan. 31., 1931, No. 3142. Convention date, Jan. 31, 1930. [Class 38 (i).] A cartridge fuse has a tubular insulating body A, as shown in the Figure, fitted with double end caps C, D and G, H. The bore B is filled with vitreous pulverulent material such as globules of glass for damping the arc or spark on fusion and has pads N of asbestos to lessen explosive shock on the end caps. The inner pair of caps C, D are provided with holes E, F and have attached to them the fuse wires I. The outer pair G, H have hemispherical surfaces to form contacts ; contact H also having an extension P the diameter of which is dependent on the amperage of the fuse so that insertion of a wrong fuse is prevented. A spring-pressed plunger L held with the spring in compression by an auxiliary fuse wire J acts as a tell-tale to indicate the condition of the fuse.
Patent GB-1023931-A (GB)
Title: A process for improving the stability of polyolefines
IPC: C08K5/55
Filed: 1965-01-25
Abstract: The stability of a polyolefin is improved by dispersing the purified polyolefin powder in an inert medium admixing with a boron compound (R1R2BH)2 (wherein R1 and R2 are H, or C2 to C18 aliphatic, or cycloaliphatic, aromatic or araliphatic radicals), heating, separating and then washing the polyolefin. In examples, the boron compounds used are diborane, dilauryldiborane, tetralauryldiborane and tetraphenyldiborane; and the media are hexane, heptane and chloroform.  The stability of the treated polyolefins are tested in compositions containing dilauryl thiodipropionate and 4,41 - thio - bis - (3 - methyl - 6 - t - butyl phenol).