baber/WOPTO huggingface dataset:
Patent GB-1215201-A (GB)
Title: Improvements in or relating to deflection circuit arrangements for cathode ray tubes
IPC: H03K6/04
Filed: 1968-01-15
Abstract: 1,215,201. Transistor sawtooth circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 15 Jan., 1968 [14 Jan., 1967], No. 2102/68. Heading H3T. In a push-pull output circuit for the deflection coil of a wide angle cathode-ray tube, tangential correction is provided by a voltage proportional to the deflection current and a further voltage derived from one half of the push-pull amplifier. As shown in Fig. 1, a capacitor 7 in connected in a feedback path around the push-pull amplifier comprising transistors 1, 2, 6 so as to simulate a much larger Miller capacitance 7, shown in broken lines. Capacitance 7 is charged via resistors 10, 11 during each sweep then discharged by a switching device 15. Tangential or S-correction is provided by superimposing on the emitter of the driver transistor 6 a voltage dependent only on the collector current of transistor 2 and a further voltage proportional to the deflection current in coils 5. Linearity and amplitude controls 9, 10 are provided. In Fig. 5, the circuit is made self-oscillating by feedback via 22, 23 to the base of the switching transistor 15. RC circuit 24 ensures that driver transistor 6 is non-conductive during the flyback period. In Fig. 6 (not shown) output transistors 1, 2 are of the same conductivity type and are respectively driven from the emitter and collector of transistor 6. Transistor 2 is provided with a diode/resistor biasing circuit. In Fig. 7 (not shown) resistors 16, 17 are included in the collector circuit of transistor 1.
Patent GB-388183-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/38
Filed: 1932-01-25
Abstract: 388,183. Transformers. ZOPP, A., 17, Achsenaugasse, M÷dling, near Vienna. Jan. 25, 1932, No. 2212. [Class 38 (ii).] The limbs and yokes of transformer cores are built up from laminations 1, Fig. 1, bent to involute form, the laminations being held together by a tube 3 closely surrounding them. Fig. 5 shows a transformer in which the windings 8, 9 are located in the annular space formed between two hollow core parts 2, 4 constructed as indicated in Fig. 1 and bridged at their ends by yokes 5, 6 similarly formed as indicated in plan in Fig. 6. The laminations forming the yokes may, however, be spaced as shown to provide for circulation of a cooling medium such as oil. In the case of high reactance transformers, the magnetic shunt 17 between the windings may also be formed of coiled sheet iron. A base member 15 having ventilating openings formed therein may be secured to the core by flanges formed on a tubular member extending through the centre of the core. In a polyphase transformer, Figs. 7 and 8 (not shown), three core limbs similar to the part 2 are clamped between modified yokes. Reference has been directed by the Comptroller to Specification 163,090, [Class 38 (ii), Electric currents, Converting &c.].
Patent GB-142189-A (GB)
Title: Improvements in and relating to weighing scales
IPC: G01G1/00
Filed: 1919-01-29
Abstract: 142,189. Barrett, J. C., and Ohnell, E. J. Jan. 29, 1919. Pendulum-weight apparatus.-Relates to a weighing-scale, and consists in mounting the pivots 9, Fig. 4, of a pendulum lever upon members 10 supported on knife-edges 12 and balanced by means of weights 10<b>. The scale pan or platform is connected by a hook 5, Fig. 3, to one or more pendulum levers 8, two being shown. Each pendulum lever has a slot 8<c>, wherein is secured the pivot shaft 9, each end of the shaft being supported upon two of the movable members 10. The pivot shaft 9 and the movable members 10 are each provided with intermeshing teeth 15, 16 for maintaining the moving parts in correct operative relation. The teeth 16 on the members 10 may be secured thereto by resilient means such as a blade spring a, or by the spring-controlled slot and screw connexion f, e, Fig. 5. The intermeshing teeth are constructed so as to clear one another when the pivots 9 and the movable members 10 are in their correct relative positions. The pendulum levers may be removed from the pivot shafts 9 for transport of the machine. The indicating-pointer is actuated by a cam attached to one of the pendulum levers 8.
Patent GB-784531-A (GB)
Title: The combination of a helicoptor-supporting rotor and a two-stroke fuel-injection compression-ignition engine serving as a gas generator
Inventor: RAINBOW HORACE SINCLAIR
IPC: B64C27/14
Filed: 1955-01-26
Abstract: 784,531. Internal combustion engine gas generators. ARMSTRONG SIDDELEY MOTORS, Ltd. Feb. 27, 1956 [Jan. 26, 1955], No. 2288/55. Class 7(1) [Also in Group XXXIII] The invention comprises in combination a helicopter - supporting rotor and a twostroke fuel-injection compressionignition engine serving mainly to drive a centrifugal axial or diagonal flow compressor from the output of which the engine is supplied with its charge of air, the engine and compressor serving as a gas generator the exhaust gases of which .are delivered as motive fluid for driving the supporting rotor and the engine including means for automatically varying the compression ratio of the engine for limiting the maximum cylinder pressure to a safe value. In Figs. 1 and 2 a centrifugal air compressor 13 supplies air to the twostroke fuel-injection compression-ignition engine 12. The exhaust gases of the engine are supplied through the pipe 25 and through the hollow blades 27 of the rotor to propelling nozzles 28. In Figs. 3 and 4 the engine supplies exhaust gases to a turbine 41 which drives the rotor 26a, 27a through a reduction gear. The compression ratio is preferably varied respectively to the pressure of the compressor output for example as disclosed in Specifications 752,895 and 757,639.
Patent GB-947111-A (GB)
Title: Purification and polymerization processes
IPC: C08F10/00
Filed: 1961-01-20
Abstract: The purification of hydrocarbons for use and/or which have been used as diluents in the polymerization of a -olefins is effected by distilling with an alkali metal hydroxide or alkoxide and passing the distillate through an adsorbent. The hydrocarbon may be pentane, hexane, heptane, n- or iso-octane, high molecular weight liquid paraffin mixtures, naphtha, mineral spirits, cyclohexane, methyl cyclohexane, tetra- or deca-hydronaphthalene, benzene, toluene, xylene, ethylbenzene, n- or iso-propylbenzene, ethyl-toluene, diethylbenzene or mono- or di-alkyl naphthalenes. The purification can be applied to diluents used in polymerization processes using a Group 6a metal oxide catalyst or to Ziegler-type catalyst comprising a mixture of a transition metal compound and a metal or metal hydride, or organometallic compound.  The olefins polymerized may be ethylene, propylene, 1-butene, isobutylene, 1-pentene, 1-hexene, 1-octene, 1-decene, or styrene. The copolymerization of ethylene and propylene, and ethylene and 1-hexene are exemplified.ALSO:The purification of hydrocarbons for use and/or which have been used as diluents in the polymerization of a -olefins is effected by distilling with an alkali metal hydroxide or alkoxide and passing the distillate through an adsorbent. The hydrocarbon may be pentane, hexane, heptane, n- or iso-octane, high molecular weight liquid paraffin mixtures, naphtha, mineral spirits, cyclohexane, methyl cyclohexane, tetra- or deca-hydronaphthalene, benzene, toluene, xylene, ethylbenzene, n- or iso-propylbenzene, ethyltoluene, diethylbenzene or mono- or di-alkyl naphthalenes. The purification can be applied to diluents used in polymerization processes using a Group 6A metal oxide catalyst or an ionic catalyst comprising a mixture of a transition metal compound and a metal or organometallic compound.  The alkali metal compound is preferably sodium hydroxide methoxide, ethoxide, propoxide, isopropoxide, butoxide or isobutoxide or a similar compound of potassium or lithium used in an amount of 0.4-5 pounds per 1000 gallons of diluent and the mixture is preferably refluxed for 0.5-15 hours before distilling.  The distillate is then contacted with silica gel, activated carbon, activated alumina, fuller's earth, bauxite, acid-treated clays or magnesia using a space velocity of about 1 vol./vol./hr.  The adsorbent is regenerated, whenever carbonyl compounds appear in the effluent by blowing through it a hot inert gas, e.g. methane, preferably containing 10-25% of steam at 150-250 DEG  C. and preferably at or above the boiling point of the diluent.
Patent GB-562086-A (GB)
Title: Improvements in or relating to mechanism for supplying yarn or unspun fibres
IPC: D04H11/04
Filed: 1942-07-16
Abstract: 562,086. Pile fabrics. STRODE, M. (legal representative of Allen, R. S.). July 16, 1942, No. 2326/44. Divided out of 560,290. [Class 142 (iv)] A warp A of yarns is supplied to the pleating mechanism of a machine for making cemented pile fabrics by apparatus comprising a clamping device 91, 93, a loop-forming device 112, 129 on each side of the clamping device and camoperated means for operating the loop-forming and clamping devices in timed relation. The cams 107, 118 for the clamping device and the loop-forming arm 112 are so related that the arm 112 draws a length of the warp while the movable member 93 is held closed, and the cam operating the arm 129 is arranged to actuate the arm to draw the warp through the opened clamp. A spring 95 tends to hold the movable jaw 93 in contact with the fixed jaw 91, and the movable jaw has a bar 96 covered with material 98 such as emery cloth fixed to it to form a gripping surface. Tension rolls are provided for operating upon the warp before it reaches the arm 112, and a guiding roll is provided for the warp leaving the arm 129.
Patent GB-1480993-A (GB)
Title: Electrolytic wire treatment
IPC: H01B13/06
Filed: 1976-01-21
Abstract: 1480993 Anodizing aluminium SOC DE VENTE DE L'ALUMINIUM PECHINEY 21 Jan 1976 [22 Jan 1975] 2348/76 Heading C7B [ Also in Division H1] Al or Al alloy wire, useful as an electric conductor having low contact resistance, is anodized in a bath containing 50-400 g/l H 3 PO 4 , and 0À5-30g/l of a non-foaming, emulsifying additive using AC for 3-10 sec. A voltage of 4-45 V at 2-20 A/dm<SP>2</SP> and a wire travel speed of 100 m/min are specified. The wire may be first pickled, and after anodizing be electrolytically coloured in a metal salt bath. As additive various detergent/surfactant mixtures are referred to, e.g. a blend in H 2 SO 4  of C 6 F 13 -(CH 2 ) 2 -O-(CH 2 CH 2 O) 10-16 H, ethylene oxide/C 13-15  fatty alcohol condensate and a polyethylene glycol of MW 400.
Patent GB-118123-A (GB)
Title: Improvements in or relating to Engines or Motors.
Inventor: HARRIS HERBERT STOCKER
IPC: F02K5/02
Filed: 1917-08-16
Abstract: 118,123. Harris, H. S. Aug. 16, 1917. Propelling.-A motor producing a gaseous stream for propelling aircraft, vessels or vehicles by direct reaction or for driving a turbine, comprises a combustion chamber from which the combustion products issue in the form of a non-expanding stream into an open-ended discharging tube so that air is drawn in as the stream cools to augment the mass of the stream. Petrol, parafin, or coal dust may be used as fuel. Fig. 1 shows two petrol jets C supplied from a tank A and arranged in tubular portions H of a fan casing F. The fan E is driven by a small petrol motor D and delivers air at low pressure to combustion chambers L which are enlarged to permit expansion of the combustion products, the ends of the chambers being contracted to increase the velocity of the jets. Rearwardly tapering tubes K open at both ends surround the chambers L. Additional air may be introduced at several points along the tubes K. A series of nozzles or burners may be used in any convenient arrangement, or one or more nozzles may discharge into a single tube of large cross-section which may acommodate the pilot, tank, and engine D at its forward end. Instead of supplying air for combustion from a fan it may be supplied through a collector during forward motion. The air current may induce petrol into the burner or vice versa. For starting the engine, a fan may be provided in the tube for drawing in air and petrol and the discharging end partially closed by a valve. A tan driven by the stream in the tube K may also drive the fan E. The tube or tubes K may be angularly movable for steering purposes. The tube or tubes K may be reversed for retarding the speed of the aircraft when landing, or the rear end may be temporarily closed so that gas is discharged from the front end.
Patent GB-377105-A (GB)
Title: Improvements in holders for toilet-paper rolls
IPC: A47K10/38
Filed: 1932-01-26
Abstract: 377,105. Roll holders. PIND, C. W., 34, Sonderottinggade, Haderslev, Denmark. Jan. 26, 1932, No. 2375. [Class 18.] In a holder for rolls of toilet paper of the kind comprising a U-shaped wire frame having one arm formed with an eyelet d to which one end of a bar f carrying a core and the roll of paper is hingedly attached and the other arm formed with a hook e to take the free end of the bar, the hinge end of the bar is provided with a finger i which, when the free end of the bar is detached from the hook e, abuts against the eyelet d and supports the bar in an inclined position ; and the free end of the bar has an offset portion k serving to retain the core on the bar when the latter is inclined. The U-shaped frame is attached to a baseplate by a wood strip b or other fastening.
Patent GB-476209-A (GB)
Title: Improvements in turbine plants
IPC: F01D15/04
Filed: 1937-01-27
Abstract: 476,209. Steam turbine plant. KRUPP GERMANIAWERFT AKT.-GES., F. Jan. 27, 1937, Nos. 2385 and 2386. Convention dates, Feb. 3, 1936 and Feb. 12, 1936. Addition to 412,147. [Class 110 (iii)] In a steam turbine plant according to the parent Specification which comprises a highpressure double-flow unit 9, 10, through which steam may be passed either in parallel or in series under the control of valves 5, 20, 21, 27, one high-pressure stage 10e is housed in a casing 2 separate from that of the high-pressure turbine. In a modification four geared turbines are employed.
Patent GB-345738-A (GB)
Title: Improvements in the purification of mineral oils, tars, their distillation products and the like
IPC: C10C1/20
Filed: 1930-01-23
Abstract: Mineral oils, tars, synthetic oils, and the like are refined by first removing, by polymerization, adsorption, or decomposition, those constituents which resinify or decompose when heated to 400 DEG  C. in the presence of hydrogen, and then treating the resulting products with hydrogen at elevated temperatures in the presence of catalysts immune from poisoning by sulphur, if desired under pressure, so as to convert unsaturated compounds and compounds containing sulphur, oxygen, nitrogen, or halogens into hydrocarbons without substantial cracking.  The removal of the injurious constituents in the first stage may be effected by stirring with dilute or weak acids such as 40 per cent sulphuric acid, or acetic, oxalic, or malonic acid; or by the addition of polymerizing catalysts such as sulphur, potassium hydrosulphide, zinc chloride, or aluminium chloride; or by heating in the liquid or vapour state under normal or elevated pressure with bleaching earth, silica gel, pumice, bauxite, and the like.  In the latter treatment in the vapour state, gases such as hydrogen, water vapour, or air may be added.  High boiling materials are preferably diluted with middle oils which are distilled off later. The second stage treatment with hydrogen is preferably carried out at 200-450 DEG  C. with catalysts containing oxides or sulphides of the metals of groups 2-7, preferably in conjunction with metals of group 8 or with heavy metals of groups 1 and 2, or the oxides and sulphides thereof.  The catalysts are preferably deposited on charcoal, Florida earth, silica gel and the like.  In examples (1) benzol is passed with hydrogen over Florida earth at 250 DEG  C., and then over nickel oxide and tungsten oxide on active carbon at 300 DEG  C.; (2) solvent benzol of B.P. 140-200 DEG  C. is passed with hydrogen at 200 atmospheres and 250 DEG  C. through bleaching earth, and is then passed at the same pressure at 350 DEG  C. over nickel sulphide and chromium oxide on fuller's earth; (3) a coal-tar middle oil of B.P. 120-350 DEG  C. is washed with 40 per cent sulphuric acid, distilled, and treated in the liquid phase with hydrogen at 200 atmospheres and 350 DEG  C. with a catalyst of cobalt and molybdenum sulphides, with or without zinc oxide, on Florida earth. Specifications 249,309, [Class 91, Oils &c.], 267,165, 325,862, and 332,336, [all in Class 32, Distilling &c.], are referred to.
Patent GB-1281812-A (GB)
Title: Free standing appliance with break-open door
IPC: A47L15/42
Filed: 1970-01-19
Abstract: 1281812 Dish washing machines WESTINGHOUSE ELECTRIC CORP 19 Jan 1970 [3 Feb 1969] 2416/70 Heading A4F [Also in Division E2] The swing-down door of a dishwasher cabinet is mounted for swing-down movement beyond the horizontal normal open position and has anti-tip means operable, when a face greater than a predetermined normal face is applied, to open the door beyond the normal open position. The antitip means comprises "yieldable resistance means" which may be partly formed by counterbalancing means. In the figures, door 22 secured to cabinet 10 by hinge 24 normally opens to a horizontal position and is held there by detent means 38. On application of an abnormal force, shoulder 52, Fig. 4, comes out of engagement with the lower edge of guide block 54 permitting catch member 46 to slide upwardly to allow the door to open futher.
Patent GB-557209-A (GB)
Title: Improvements in or relating to hitch means for connecting trailed devices to tractive vehicles
IPC: B60D1/14
Filed: 1942-02-27
Abstract: 557,209. Hitch means. FERGUSON (MOTORS), Ltd., H., SANDS, W. J., and GREER, A. Feb. 27, 1942, No. 2587. [Class 103 (v)] In a construction in accordance with Specification 536,882 as shown in Fig. 3 the upper link, which in normal use is under compressive stress, would come under tensile stress (which might cause the tractor to rear backwardsly) if the connection 1 of the lower link gives way and the trailer front is obstructed by striking the ground; in order to avoid this the upper link is made incapable of tensile stress by being made of telescoping members 4, 5, the latter member coming against the closed end 6 of member 4 to allow the compressive stress of normal working to be produced. In modifications the link members have universal connections to the tractor and trailer, the linkage permitting up-and-down movement between the trailer and tractor, lateral swinging movement of the trailer, and also relative rocking movement between the tractor and trailer. Specification 510,352, [Group XXXI], also is referred to.
Patent GB-1206032-A (GB)
Title: Tetrahydroxylated compounds and processes for their production
IPC: C08G63/66
Filed: 1968-01-17
Abstract: 1,206,032. Tetrahydroxylated compounds. UGINE KUHLMANN. 17 Jan., 1968 [20 Jan., 1967], No. 2592/68. Heading C2C. [Also in Division C3] Novel 1 - (hydroxyalkyleneoxy) - 2 - hydroxymethyl-2,6-hexanediols having the Formula (I) in which n is an integer between 1 and 40, R and R<SP>1</SP> each represent an atom of hydrogen or an alkyl radical having from 1 to 6 atoms of carbon, or together forming a ring constituted by an alkylene radical having 3 to 6 atoms of carbon are produced by the simultaneous hydrolysis and catalytic hydrogenation, in a non-alkaline medium, of a 1 -(hydroxy-alkylene. oxy)-6,8-dioxa bicyclo 3.2.1. octane having the Formula (II) Conventional hydrogenation catalysts are used. The above intermediate, in the case of 1- hydroxypropyleneoxymethyl-6,8-dioxa bicyelo (3.2.1) octane was formed by the addition of 1 molecule of propylene oxide to 1-hydroxymethyl-6,8-dioxa bicyclo (3.2.1) octane. Similarly 1-hydroxy-dipropyleneoxymethyl-6,8-dioxa bicyclo (3.2.1) octane was formed by the addition of 2 molecules of 1-hydroxymethyl 6,8-dioxa bicyclo (3.2.1) octane.
Patent GB-853522-A (GB)
Title: Nickel coatings and method of applying
IPC: C25D5/46
Filed: 1946-01-25
Abstract: Uranium articles are protected by plating or otherwise coating with nickel.  Further coatings of Cu, Cr, Al-Si alloy may be applied to the nickel, and then heated to alloy the nickel with the uranium, and also with the overcoat-metal e.g. copper to form a cupro-nickel alloy.  Heating may be effected by dipping in a bath of a mixture of alkali metal chlorides in molten state at 700 DEG  to 800 DEG C., or by inductive or radiant heating in vacuo or in an inert gas.  Coating by hot-dipping in molten zinc, lead and tin are referred to, when a thick nickel under coating should be used; also in a brazing alloy of 88% Al and 12% Si, the coated nickel plated uranium rod being then brazed to an aluminium sheath.  The uranium rod may be pre-treated by light sand blasting, and etching with HCl, HNO3, trichlor-acetic acid or molten ferric chloride.  Specification 853,521 is referred to.
Patent GB-974946-A (GB)
Title: Improvements in or relating to apparatus for transferring articles from travelling conveyors on to receiving platforms
Inventor: ARBER ROWLAND SACKVILLE PRESTO
IPC: B65G47/82
Filed: 1962-01-24
Abstract: 974,946. Endless conveyers. U.D. ENGINEERING CO. Ltd. Feb. 18, 1963 [Jan. 24, 1962], No. 2746/62. Heading B8A. An apparatus for transferring crates from a travelling conveyer having two laterally spaced endless chains 8, on to a receiving platform 18 comprises an elevating platform disposed below the upper run of the chains adjacent one end of the conveyer and which under pneumatic operation projects above the chains 8 to elevate the crates, a support structure 17 to one side of the conveyer adjacent the elevating means and adapted to locate the receiving platform 18 substantially level with the top of the elevating platform in its elevated position, and a pusher 20, 21 arranged adjacent the elevating means on the opposite side of the conveyer to the platform 18 and adapted to push the conveyed crates on to the platform 18. The elevating platform is pivotally mounted on parallel links which are actuated through a toggle linkage by means of a pneumatic ram 30 Fig. 3 (not shown). The pusher 20, 21 is formed by the superstructure of a carriage 19 which is provided with rollers 38 and 39 to travel along horizontally and vertically disposed guide tracks. The motion of the carriage 19 is controlled by another pneumatic ram 23. The conveyer which is driven from a motor through a reduction gear and chain and sprocket transmission, is provided with a fixed stop at its downstream end adjacent the elevating means and with a swinging stop just upstream of the elevating means. The swinging stop is operated by means of a third pneumatic ram 37, Fig. 2 (not shown). In operation crates being conveyed towards the fixed stop firstly operate a valve which actuates the stop ram 37 to swing its stop across the conveyer, and then operates a valve which actuates the elevating ram 30. Upon elevation, the elevating platform operates a valve which actuates the carriage ram 32 which causes the crates to be pushed on to the receiving platform 18 and a valve to be operated which reverses the direction of actuation of both the elevating ram and the carriage ram. The stop ram 37 is reversed by means of a hand control or the swinging stop may be mechanically withdrawn by the return motion of ram 23. A re-setting valve is provided in case of obstruction of the pusher mechanism.