baber/WOPTO huggingface dataset:
Patent GB-517587-A (GB)
Title: Improvements in or relating to gyroscopic instruments
IPC: G01C19/44
Filed: 1938-07-30
Abstract: 517,587. Gyroscopic apparatus. ASKANIAWERKE AKT.-GES. July 30, 1938, No. 22768. Convention date, Aug. 2, 1937. [Class 97 (iii)] In a gyro - vertical normally erected by air jets created by the rotation of the electrically driven rotor, additional erecting means are provided for setting the spin axis iri the vertical when starting up the rotor at an inclined altitude of the supporting aircraft, e.g., the take-off position. As shown the rotor is normally erected by air jets controlled by pendulous shutters 6. The additional erecting means comprises a piece of soft iron 9' on the rotor casing 4 cooperating with an electromagnet 8, 9 carried by a pivoted bail 10 having an extension 10<1>. The latter carries a spring plunger 11 adapted to engage one or other of a pair of bores 13, 13' according to whether the aircraft is in the normal flight position or the take-off position when it is desired to initially erect the gyroscope. The position of the bore 13<1> may be adjustable. In a modification the bail 10 hangs pendulously and is damped by a dash pot. The circuit for the winding 8 of the electromagnet may be broken when the rotor 3 is rotating at full speed either manually or automatically by a relay operated by the air pressure within the rotor casing 4.
Patent GB-879229-A (GB)
Title: Lounge chair with leg rest
IPC: A47C1/034
Filed: 1959-07-02
Abstract: 879,229. Reclining chairs. CALIQUILT FURNITURE CORPORATION. July 2, 1959, No. 22805/59. Class 52(2). A reclining chair has a baseframe 11 on posts 22 of which is pivoted a seat frame 26 and back frame 27, a leg rest 50 being hinged connected to the front of frame 26 at 71 and links 85, 88 pivoted to the frame 11 and leg rest 50 respectively being connected by a bell crank 80 pivotally mounted in seat frame 26 so that tilting of the latter causes expulsion of the leg rest. The leg rest member 50 includes a rear frame 51 hinged to the seat frame and a forward frame 52 mounted on rods 62 telescopically received in tubes 64 on frame 51 so as to be slidable with respect to frame 51. Levers 104 pivoted to frame 51 and connected to links 88 cause sliding of frame 52 in response to tilting of the seat frame 26. A vibrator 49 may be mounted on the back frame 27. Extensions of links 85 act as stops to limit the forward tilting of the seat.
Patent GB-462898-A (GB)
Title: Improvements in or relating to governing means for fuel injection pumps of internal combustion engines
IPC: F02D1/00
Filed: 1935-08-13
Abstract: 462,898. Fuel-injection pumps. AUTOMOTIVE PRODUCTS CO., Ltd., and TRAPP, G. J. Aug. 13,1935, No. 22818. [Class 102 (i)] [Also in Group XXVI] The rack Q for varying the quantity of fuel delivered by a fuel-injection pump is connected by a pin 27 to a lever 20 pivoted on a pin 25 adjustable by hand. The rack T for varying the time of injection is connected by a pin 32 operating in a slot 31 to a lever 29 pivoted on the pin 15. Both levers 20, 29 are connected to a rod 11 operated by a speed responsive member. Fig. 3 shows the rack T connected to a lever 35 mounted on an eccentric 34 carried by a shaft 15 which also carries the pivot pin 25 of the lever 33 which is connected to the rack Q. The shaft 15 is rotated by hand to vary the quantity and timing of the injection. Levers 33, 35 are connected to the speed responsive member 11. The relative position of the pivots 34, 15 can be arranged so that the rate of change of the angle of advance relative to the speed may be varied as well as or instead of altering the angular position of the range. Specification 461,667 is referred to.
Patent GB-652353-A (GB)
Title: Improvements in and relating to circuits for generating electric pulses
IPC: H03K5/07
Filed: 1946-07-31
Abstract: 652,353. Pulse generating circuits. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. July 31, 1946, No. 22824. [Class 40 (vi)] A series of tuned circuits of progressively increasing resonance frequencies are employed as couplings between valves, an input voltage shock exciting the first tuned circuit and the first peak only of each resulting damped wavetrain being applied to the succeeding valve. The tuned circuits may conveniently take the form of inductors L, L1, L2, L3 tuned by their associated stray capacities, the valves being biassed to anode current cut-off by grid resistors and capacitors. The initiating waveform may be produced by feeding a sine wave through a push-pull transformer to the grids of a valve pair, one of which is fed over a delay network, Fig. 12 (not shown), the output being obtained from a common anode load. This circuit allows the occurrence frequency to be changed without affecting the pulse length. Alternatively, Fig. 11 (not shown), a single valve may be employed fed from an A.C. source through a resistor, the grid cathode capacity causing the output pulse to have a sloping trailing edge thereby reducing the amplitude of the shock excitation caused thereby.
Patent GB-1484653-A (GB)
Title: Method of coating a substrate
IPC: C09D167/08
Filed: 1975-05-23
Abstract: 1484653 Polymer coatings on cellulosic substrates AKZO NV 23 May 1975 [30 May 1974] 22859/75 Heading B2E A substrate consisting entirely or partly of cellulosic material is coated with an adherent coat of film-forming polymer by applying to the substrate a coat of a coagulent for the polymer, then applying an aqueous dispersion comprising an oxidatively drying binder and a polymer of an ethylenically unsaturated ester in a weight ratio of 10:90 to 50:50, and drying the coating. The substrate may be paper, wood, chipboard, cardboard or fibreboard and may be in the form of a board, film or web. Suitable polymers of unsaturated esters are polymers of acrylate and/or methacrylate esters and/or vinyl esters, optionally together with polymers of styrene, vinyl and vinylidene chloride, ethylene and crotonic acid. The preferred esters are vinyl acetate, propionate, versatate and laurate, methyl and butyl acrylate, methyl methacrylate and 2-ethylhexyl acrylate. The binder is preferably an oxidatively drying alkyd resin of oil length in the range of 25-70%. It is prepared from a diol and/or a polyol and a di- and/or polycarboxylic acid, optionally together with mono-alcohol and/or monocarboxylic acid. The alkyd resin may also be prepared from glycerides, e.g. castor oil, dehydrated castor oil, coconut oil, linseed oil, soyabean oil or tung oil, or may be an unsaturated fatty acid ester of a polyol such as glycerol, trimethylol propane, or an allyl ether of a polyol. The alkyd resins may be modified with an aliphatic or aromatic mono- or diisocyanate. The emulsion may be stabilised with an anionic or non-ionic emulsifying agent. It may contain thickening agents e.g. hydroxyethyl cellulose, pigments e.g. titanium dioxide, fillers e.g. calcium carbonate, anti-foaming agent, co-solvents e.g. toluene or xylene, metal naphthenate siccatives, ammonia and resins. The coagulent for the polymer may be an aqueous or organic solvent solution or dispersion of an acid e.g. sulphuric, hydrochloric, nitric, phosphoric, formic, acetic, propionic and p-toluene sulphonic acid, or a salt preferably of a multivalent cation, e.g. Ca<SP>2+</SP>, Mg<SP>2+</SP>, Be<SP>2+</SP>, B<SP>3+</SP>, Al<SP>3+</SP>, Ga<SP>3+</SP> or ammonia, and the solution may contain a wood-preservative. It may be applied by rolling, spraying, brushing, flow coating or dipping optionally under pressure. The coagulent coating is preferably partially dried before applying the polymer/ binder emulsion, which may be effected by dipping. The substrate is preferably lightly sandpapered before applying the coagulent, and the polymer/binder coated article may be given a top-coat of paint or varnish. A comparative example is given wherein the coagulent-coated article (a wooden window frame) is coated with an aqueous dispersion of a polyurethane or a polytetrafluoroethane as the film-forming polymer.
Patent GB-273640-A (GB)
Title: Steering wheel and its swivel axle holder for automobile vehicles
IPC: B62D7/18
Filed: 1926-09-16
Abstract: 273,640. Buscaglia, B. June 29, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Deflectable a x l eends; swivelling wheelhubs and the like. - The wheel spindle a rotates in a casing g pivoted at h in the central plane of the wheel to the front axle i, the casing being closed by a cap q at the inner side of the wheel, the outer side of the wheel having no part projecting beyond the outer plane x of the tyre. In the construction shown, the steering pivot h is in front of the wheel spindle so that the wheel has a castor action. An oil retaining plate is provided between the outer end r of the casing and a plate b forming the centre part of the wheel. The plate b is formed with a bearing surface or shoulder c and the disc wheel is secured to the plate by bolts u and nuts v having centring cones.
Patent GB-598714-A (GB)
Title: Improvements in and relating to pipe joints or couplings
IPC: F16L23/028
Filed: 1945-09-06
Abstract: 598,714. Tube expanders. ROSS, Ltd., S. G., and AUGUST, F. C. Sept. 6, 1945, No. 23023. [Class 83 (iv)] [Also in Group XXVIII] A drifting-tool for expanding the end of a pipe 7 to the shape of a collar 16 comprises an outer stem portion 22 having a flange 23 which presents a radial face to the pipe end, a body portion 24 of diameter equal to the required bore of the pipe end, and a coned part 25 corresponding to the coned part of the collar. A terminating guide part 26 of the same diameter as the pipe bore may be fitted. In use, the collar is placed flush with the pipe end and the tool inserted and hammered home.
Patent GB-171150-A (GB)
Title: Improvements in or relating to life guards for use in connection with motor road vehicles
IPC: B60R21/34
Filed: 1920-08-04
Abstract: 171,150. Turner, W. J., Collen, J. W., and Rolfe, A. J. Aug. 4, 1920. Wheel-guards, obstruction-removers, and safety appliances.-In a front wheel-guard for a vehicle, a substantially horizontal centre guard is supported by brackets from the chassis and has its transverse slats hinged to side guards, the whole guard being arranged to move with the steering and to be raised or lowered by the driver. The supports d are attached to the chassis by brackets e, the lower ends at g<1>, g<2>, serving as bearings for a transverse bar between the front wheels, to which bar the side guards are hinged at g, g. The top end of each support d is connected to the top framing of each side guard through an eye j. Each transverse slot a of the centre guard is hinged to the lower framing a<2> of the side guard, the lower framing a<2> on one side being extended to the rear to engage a clip attached to the transverse steering-rod i so that, when the guard turns with the steering of the vehicle, the centre guard takes the form of a rhombus. Hand operating-gear is connected to the top framework c of the side guard, so that the whole guard may be raised by the driver drawing the side framing c through the eye i by means of a wire l, the centre guard turning about the pivots g<1>, g<2>.
Patent GB-653250-A (GB)
Title: Improvements in or relating to methods of producing sound recording material
IPC: G11B5/702
Filed: 1947-08-20
Abstract: A composition for coating a flexible moisture-proof cellulosic material comprises finely-divided magnetic iron oxide, nitrocellulose in a solvent mixture of benzol, alcohol, and acetone, polymerized castor oil, and a small quantity of white mineral oil and an antirancidity agent.
Patent GB-1468214-A (GB)
Title: Fluid inflation process for container formed of superplastic alloy
IPC: B21D26/055
Filed: 1974-05-23
Abstract: 1468214 Fluid inflation; stamping; working at specified temperatures ALTER LICENSING ESTABLISHMENT 23 May 1974 [2 Oct 1973] 23113/74 Headings B3A B3Q and B3V A method of making a container from a superplastic alloy by fluid inflation comprises forming a bottomed cylinder from the alloy, mechanically finishing the surface of the cylinder, preheating the cylinder to a temperature of 200 to 300 C. and holding it at the temperature for at least two minutes, placing the cylinder in a metal die assembly heated to a temperature below 600 C. and fluid inflating the cylinder at an initial pressure of at least 8 atmospheres and then increasing the pressure to between 10 and 20 atmospheres, and cooling the die assembly prior to removing the inflated container. The alloy material may be Zn-Al, Al-Cu, Al-Si, Mg-Al, Mg-Cu, and Mg-Ni alloys. The cylinder may be smoothened on its outer surface by polishing, ironing, drawing, or machining and the preheating may be performed at 260 C.  10 C. for 10 to 15 minutes. In an embodiment, a disc (1), Fig. 1 (not shown), which may be formed by slicing an extruded bar, is formed into a bottomed cylinder 2, Fig. 2, having a lug 15 for co-operation with a depression 16, Fig. 7 in a bottom die 6. After initial working of the cylinder to form a smooth surface, the cylinder is placed between dies 4 which include heaters 7. A nozzle 13 is engaged with the neck portion 9 and the cylinder is inflated to form a container (10), Fig. 8 (not shown), having a threaded neck portion (11). The cylinder may also be formed from an extruded tube to which a bottom portion may be welded, or the tube may be nipped at one end.
Patent GB-217873-A (GB)
Title: A process of preparing liquid fuels for internal combustion engines
IPC: C10L1/02
Filed: 1923-09-17
Abstract: Fuels for internal-combustion engines of all kinds are obtained by mixing a series of ingredients having gradually diminishing volatilities and higher boiling points so as to form a complete chain.  The maximum difference in the boiling points of consecutive ingredients is about 40 DEG  F.  In an example of a motor spirit there are mixed together 20 cc. of ether, 25 cc. of alcohol or benzol, 14 cc. of heptane, 8 cc. of toluol, 4 cc. of fusel oil, 3 cc. of xylol, 2.5 cc. of hydrogenated cresol, and 2.5 cc. of decahydro-naphthalene.  A fuel suitable for a Diesel engine or for a motor using preheated fuel consists of petroleum naptha with a boiling range of 410-700 DEG  F., 15 per cent by volume of tetrahydronaphthalene (B.P. 400 DEG  F.), and 10 per cent by volume of tar oils with a boiling range of 400-520 DEG  F.  Fractions of natural oils, e.g. the 302-482 DEG  F. fraction of petroleum, may also be used as part of the chains.
Patent GB-1072544-A (GB)
Title: Improvements relating to the manufacture of semiconductor devices
Inventor: NUTTALL ROY
IPC: H01L21/762
Filed: 1965-06-01
Abstract: 1,072,544. Semi-conductor devices. FERRANTI Ltd. May 27, 1966 [June 1,1965], No. 23264/65. Heading H1K. Discrete portions of single crystal semiconductor material on a supporting substrate are produced by (i) oxidizing both faces of a semi-conductor slice (ii) removing discrete areas of oxide on one side (iii) placing the slice on a support and vapour etching right through to the other oxide layer in the unmasked areas (iv) coating remaining portions with insulating material such as silicon dioxide (v) depositing thereover a supporting substrate of heat-conducting material 7 such as polycrystalline silicon, which thus fills the intervening gaps provided by the etching process and provides a support for a plurality of discrete semi-conductor bodies 5. In the processes described, the semi-conductor is silicon and the vapour etching is carried out using hydrogen and hydrogen chloride, or argon and silicon tetrachloride or argon and chlorine; the silicon oxide coating is provided by using hydrogen, carbon dioxide or water vapour, and silicon tetra-bromide or silicon tetrachloride; the poly-crystalline support layer is provided by using hydrogen and silicon tetrachloride or by the pyrolysis of silane. Silicon nitride may be used in place of silicon oxide as the insulating coating. A conducting layer may be provided by treatment with hydrogen and molybdenum pentachloride before the provision of the oxide insulating layer.
Patent GB-1436285-A (GB)
Title: Current source
IPC: G05F3/30
Filed: 1974-05-24
Abstract: 1436285 Automatic current regulation PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 May 1974 [28 May 1973] 23349/74 Heading G3X [Also in Division H3] The invention relates to a current source comprising two parallel paths, each comprising first and second transistors, Tl, T2 and T3, T4, Fig. 2, respectively of opposite conductivity types, wherein one of the transistors T2 is either connected as a diode or replaced by a diode, and wherein a resistor R is connected in one of the paths, between one of the semi-conductor devices and one of the supply terminals. The control electrode of the transistor T1 is connected to that of the transistor T2 or to the replacement diode, and the control electrodes of the transistors T3, T4 are inter-connected so that currents flow in both paths in a fixed ratio and which have an absolute value  determined by this ratio and the value of the  resistor R. A negative feedback path is provided from the commoned electrodes of the transistors T1, T3 to the bases of the transistors T3, T4; according to the invention this path consists of a direct current transistor amplifier including transistors only of the same conductivity type as the first transistors T1, T2 and having a signal delay substantially equal to that of the or a single constituent amplifying transistor of the amplifier. In the embodiment of Fig. 2, in which resistor R may alternatively be located in the emitter circuit of the transistor T4, the amplifier comprises the longtailed pair T5, T6. In a second embodiment, the amplifier comprises a single transistor T9, Fig. 3; in this case the resistor R is in the emitter circuit of either transistor T2 or T3. A capacitor C may Be provided to improve stability at high frequencies, or a diode D2 to reduce the loop again. In this embodiment a starter circuit is necessary and comprises a transistor T10 in shunt with transistor T9: on switching on, transistor T10 is immediately conductive, rendering the transistors T3, T4 conductive so that the circuit takes up its proper working conditions. When transistor T9 becomes conductive, the voltage drop produced across resistor R4 biases transistor T10 non-conductive. In  both embodiments, predetermined currents are obtained from the collectors of transistors T01- T03 having base-emitter paths in parallel with those of transistors T3, T4.
Patent GB-837289-A (GB)
Title: Rotary filter provided with tilting filter pans
IPC: B01D33/19
Filed: 1956-07-30
Abstract: 837,289. Rotary filters. DORR-OLIVER Inc. July 30, 1956 [Aug. 15, 1955], No. 23423 /56. Class 46. A rotary filter comprises filter pans 29, Fig. 3, provided with a suitable filter material, which are mounted on trucks and rotated about a vertical axis of a hub 9. A filtrate outlet pipe 45 at the leading edge of the pan extends into an elbow pipe 15 whose other end contacts a fixed valve plate 18 to supply pressure and vacuum to the pan. A flexible sleeve 48 is sealed at either end to the pipes 45, 15 to allow relative rotation between the pipes. A roller 20 mounted on the inner rear end of the pan moves on a rail 4 while the outer rear end of the pan carries a roller 37, Fig. 2, and moves on a rail 5. The rails 4, 5 are interrupted to allow the pans to rotate about the axis of the pipe 45, the outer leading edge carrying a pipe 44 coaxial with the pipe 45, to allow discharge of the residue in the pans to a shoot 7. The pans are rotated by a sprocket and chain 58 and after discharging the residue the pans rotate to their normal position by engaging a cam shaped part 56 of the rail 5. Plates 57 are provided to prevent the feed of liquid passing between the trays.
Patent GB-1334180-A (GB)
Title: Tread ring for a tyre of the replaceable treat type
IPC: B60C11/02
Filed: 1971-04-19
Abstract: 1334180 Replaceable tread ring INDUSTRIE PIRELLI SpA 19 April 1971 [12 March 1970] 23484/71 Heading B7C In order to improve the fatigue resistance of the reinforcement of a replaceable tread ring for a pneumatic tyre, the tread ring 1 comprises a circumferentially inextensible cincture 3 formed by a helically wound metal cord whose convolutions are substantially parallel to the mid circumferential plane and two additional layers 4, 5 of parallel metal cords arranged so that the cords extend in two directions which cross the mid circumferential plane, the ratio of the breaking load, measured in a direction along the length of the cords, per unit width of each of said two additional layers to the breaking load of the cincture being greater than 0À3 and less than 1 and preferably falling within the range 0À4 to 0À75. The layers 4, 5 may be positioned as shown or radially outwardly or inwardly of the cincture. In the preferred embodiment the cords of the layers 4, 5 are inclined at an angle of 20 degrees to the midcircumferential plane, are formed of seven strands each of three wires each of diameter 0À18 mm, are disposed in each layer at a density of six cords/cm., and the cord of the cincture 3 is formed of seven strands each of four wires each of diameter 0À22 mm and wound to a density of five cords/cm. The respective breaking loads are 732 kg/cm. and 1400 kg/cm. to give a ratio of 0À523.
Patent GB-1059690-A (GB)
Title: Sprayer
IPC: B05B7/12
Filed: 1965-06-02
Abstract: 1,059,690. Spray-producers. SOC. INDUSTRIELLE ET COMMERCIALE DE MATERIEL ET D'OUTILLAGE (SICMO). June 2, 1965 [June 2, 1964], No. 23575/65. Heading B2F. Apparatus suitable for spraying paint etc. comprises a needle valve 3 adapted to control the flow of paint supplied through a conduit 2, a piston 5 mounted on the shank of the needle valve and acted upon by high pressure compressed air supplied through a conduit 8, and a nozzle 10 supplied with air from the said conduit 8 and leading into a venturi passage 13-16, the resultant low pressure air stream serving to atomize the paint at its outlet. Atmospheric air is entrained into the venturi passage adjacent the nozzle 10 through a passage 17. The apparatus may be suspended by a member 18. A spring 6 normally maintains the needle valve of the inoperative apparatus closed.
Patent GB-1139264-A (GB)
Title: Method of manufacturing refractory conduits
IPC: B22D41/50
Filed: 1967-05-22
Abstract: 1,139,264. Pipes. INSTITUT de RECHERCHES DE LA SIDERURGIE FRANCATSE. 22 May, 1967 [27 May, 1966], No. 23616/67. Heading F2P. A method of manufacturing a refractory conduit for transporting molten materials, such as molten steel, comprises fitting an external refractory tube 2 concentrically on an inner refractory tube 1 to define an annular space therebetween, inserting a foil 4 into said space about the inner tube, the melting point of the foil material being lower than the intended working temperature of the conduit, and filling the annular space with granular insulating material 4. The tubes may be of sintered alumina and the insulating material may be alumingranules. Other ceramics such as zirconium oxide or zirconia may be used for the tubes and the granular material. The foil may be of aluminium, tin, zinc or plastics material. Expansion of the granular material is accommodated by fusion of the foil during use, the molten material of the foil spreading into the interstices of the granular material.