baber/WOPTO huggingface dataset:
Patent GB-615451-A (GB)
Title: Improvements relating to the control of aircraft
IPC: F02D35/00
Filed: 1946-01-14
Abstract: 615,451. Fluid-pressure servomotor-control systems. HOOKER, S. G., ENGLISH ELECTRIC CO., Ltd., and PAGE, F. W. Jan. 14, 1946, Nos. 1299 and 10633. [Class 135] [Also in Group XXVI] The maximum indicated airspeed of an air. craft in powered level flight is limited by a device which is responsive to the Mach number and/or to a function of pitot and static air pressures and which reduces the fuel supply to the power plant of the aircraft when a selected maximum airspeed is attained. As applied to the control of a gas turbine powered or jet propelled aircraft, the pitot tube pressure and the ambient atmospheric pressure are applied to the opposite sides of a spring-loaded diaphragm 13, Fig. 1, and when the desired maximum air-speed is attained a lever 18 fulcrummed in a diaphragm 19 is raised from an abutment 21 and contacts and actuates a lever 32. A further control device which also actuates lever 32 when a desired value of the Mach number is attained is similar to the device shown in Fig. 1 except that an evacuated capsule is situated in the chamber connected to the pitot tube and is compressed between the diaphragm and an adjustable abutment. Lever 32 carries a valve 36, Fig. 3, which, when raised, vents a chamber 52 on one side of a spring-pressed piston 47, the piston being connected to the swash plate 42 of a pump, supplying fuel past a throttle 40 to the nozzles 39 of a jet engine. The output pressure of the pump is applied through a restriction 49 to the chamber 52 and the unrestricted output pressure is applied to the other side of the piston. When valve 36 is operated to vent chamber 52, the swash plate will be moved to reduce the output of the pump. The output of the pump is also controlled by an engine overspeed governor constituted by a further valve 51 which is subject to the centrifugal head due to the speed of the pump rotor and which also vents chamber 52. Specification 577,016 is referred to.
Patent GB-691458-A (GB)
Title: An arrangement for facilitating the remounting of counting and like mechanisms in measuring apparatus, especially in electricity meters
IPC: G06M1/02
Filed: 1952-01-18
Abstract: 691,458. Counting-apparatus. LANDIS & GYR AKT.-GES. Jan. 18, 1952 [Nov. 22, 1951], No. 1537/52. Class 106 (i). An arrangement facilitating the remounting of a counter &c. in measuring apparatus (e.g. an electricity meter) includes a leaf-spring 9 secured at one end by screws 8 to the supporting structure 2 of the measuring apparatus, and at the other end by interlocking means 7 to a bracket 5 supporting the counter (not shown) in predetermined relation to the structure 2, and adapted to be connected to the structure 2 by screws 15 extending through the bracket 5, in such a manner that, after the counter has once been mounted in the measuring apparatus it can be removed as necessary upon loosening the screws 15 and disengaging the interlocking means 7, and on remounting can be fixed in the original position by engagement of the interlocking means 7, finally being secured by the screws 15.
Patent GB-161325-A (GB)
Title: Improvements in brushes for brushing of wearing apparel in the process of manufacture
IPC: A46B11/08
Filed: 1920-01-20
Abstract: 161,325. Wilkie, W. Jan. 20, 1920. Self-feeding brushes. - A steam-brush for brushing wearing-apparel in process of manufacture comprises an internal container B heated by an electric coil C the leads of which pass through the handle D, and an external container A, water being fed through a valve G to the space between the containers, and steam passing out through holes H to the brush I.
Patent GB-844489-A (GB)
Title: Improvements relating to vacuum brake cylinders for railway vacuum braking systems
IPC: B60T13/46
Filed: 1958-01-20
Abstract: 844,489. Vacuum brake cylinders. GRESHAM & CRAVEN Ltd., MARSH, G. C., GIRLING Ltd., and JACKSON, G. C. Jan. 20, 1959 [Jan. 20, 1958], No. 1829/58. Class 103 (1). In a vacuum brake cylinder for railway vehicle vacuum braking apparatus, two axiallyaligned movable abutments formed by flexible diaphragms 23, 17 are each operable in the brake-applying direction on a common operating-rod 14, the movable abutments 23, 17 separating upper (26, 19) and lower (27, 20) chambers respectively. A valve means (not shown) is provided for selectively placing one or both of the lower chambers 27, 20 in open communication with the vacuum train pipe of the apparatus according to whether the vehicle is empty or loaded, whereby the force exerted on the common operating-rod during a brake application is due to a single one of the movable abutments 23, 17 when the vehicle is empty and to the two movable abutments together when the vehicle is loaded.
Patent GB-1388913-A (GB)
Title: Manufacture of porous ceramic materials
IPC: C04B38/10
Filed: 1972-01-14
Abstract: 1388913 Cellular ceramics FOSECO INTERNATIONAL Ltd 3 Jan 1973 [14 Jan 1972] 1930/72 Heading C1J A permeable ceramic is obtained by impregnating an organic foam with a ceramic slurry containing at least 0À1% of an anti-foamant, drying and firing. Specified anti-foamants are silicones and high M.W. alcohols, whilst ceramics are kaolin, mullite, sejenite, petalite and Al 2 O 3 . Dextrin is used as a temporary binder.
Patent GB-767833-A (GB)
Title: Synthetic resin and process of making same
IPC: C08G12/40
Filed: 1954-01-22
Abstract: A thermosetting resin may be made by partially condensing formaldehyde with melamine, dicyandiamide, urea, thiourea or aniline, e.g. in a molar ratio between 3:1 and 6:1, in the presence or absence of methanol, ethanol, n-propanol, n-butanol, ethylene glycol or 1:4-dioxane, until a clear homogeneous liquid is obtained and then reacting the partial condensate with a silane derivative, which is a silane containing at least one hydrolysable radical or is the product of reaction, in the presence or absence of a solvent, of a silane containing at least one silicon-bonded halogen atom with another silane having at least one ethoxy group in the proportion, e.g., of from 1:4 to 4:1.  The final product is a clear, nontacky solid and may be disintegrated, mixed with metal salt catalysts, e.g. naphthenates, and fillers, e.g. diatomaceous earth and silica in amount of 65 parts by weight to 35 parts of resin, and moulded.  In examples: (1) the reaction product of methyltriethoxy-silane and diphenyldichlorosilane in butyl alcohol was co-condensed with the partial condensate of melamine, formalin and butyl alcohol; (2) the partial condensate of (1) was replaced by a partial condensate of formaldehyde with dicyandiamide, urea, thiourea or aniline; (3) the siloxane of (1) was replaced by a siloxane made by reacting tetraethoxysilane, dimethyl-diethoxysilane, trimethylethoxysilane, ethyltriethoxysilane or amyltriethoxysilane with silicon tetrachloride, dimethyldichlorosilane, trimethylchlorosilane, ethyltrichlorosilane, diethyldichlorosilane or phenyltrichlorosilane; (4) the solvent used in (1) was replaced by n-propanol, ethanol, ethylene glycol or 1:4-dioxane.
Patent GB-904291-A (GB)
Title: Hollow needle for surgical or medical purposes
IPC: A61M5/32
Filed: 1961-01-19
Abstract: 904,291. Hypodermic needles. MANUFACTURING PROCESS LABORATORIES Inc. Jan. 19, 1961 [Jan. 27, 1960], No. 2142/61. Class 81 (2). A hypodermic needle has a bevelled front face and a lumen of uniform cross-section, the surface of the heel of the needle and the portion of the needle surface directly behind it being dished externally and merging with a smooth rounded rear edge portion of the lumen opening. The front face of the lumen of the needle has side bevels 13 which define a point 14 and which merge into a rounded edge 18 at the end of the lumen opposite the point. Adjacent to and merging with the rounded edge a recess 17 extends rearwardly and merges smoothly with the cylindrical outer surface of the needle. The recess and the rounded edge are formed by etching so that there are no corresponding projections into the lumen.
Patent GB-193627-A (GB)
Title: Improvements in sizing and quenching annular metal articles such as cups and cones for roller bearings
IPC: B21D53/10
Filed: 1922-01-24
Abstract: 193,627. Imray, O. V., (Timken Roller Bearing Co.). Jan. 24, 1922. Bearings; hoops and rings. -Annular metal articles with circular or non- circular bores and preferably of steel, such as the cones and cups of roller bearings, are first formed approximately to shape and size in the ordinary manner and, after heating, are then sized by stretching circumferentially and then quenched immediately afterwards while in stretched condition. so as to prevent distortion and so avoid or minimize the necessity for grinding after quenching. A heated bearing cone A, Fig. 1, having a bore slightly smaller than that required in the finished article is placed on a seating 1 over a tapered wedge block 4, and is expanded by a plug 6 consisting of a series of slotted internally-tapered segments carried by the press plunger 3. The bore is expanded to a diameter slightly larger than required in the finished article in order to allow for contraction when the cone is stripped from the plug. In order to allow for the variable shrinkage due to the variation in the thickness of the wall of the cone, the plug is of such a taper as to enlarge the bore slightly more at the thick end than at the thin end, unless the cone is made of alloys which shrink very little. The cone is quenched after expansion by liquid passing from a supply pipe 13 through passages 10 and jet openings 14 in the wall 9 surrounding the seating 1, which is also furnished with exit passages 15. The supply of liquid is normally cut off by a valve 16 provided with a stem 18 which is engaged by a rod 17 on the plunger to open the valve as soon as the cone is expanded. Withdrawal of the plug from the cone after quenching tends to planish or polish the surface of the cone. In Fig. 4 a bearing cup B is shown as expanded by a solid tapered plug 5<a> having helical grooves 19 which communicate with the passage 12, so that the quenching liquid may be directed against both the inner and outer surfaces of the cup. In the form shown in Fig. 5, the cup is expanded by a plug 5a against a helically grooved perforated annular wall so that it is restrained both externally and internally during quenching. In a modification the grooved and perforated wall may consist of a detachable segmental piece the inner surface of which is tapered to fit a tapered seat on the wall 9. For quenching a cup having tapered inner and outer surfaces, the inner face of the wall 9 shown in Fig. 5 is tapered.
Patent GB-555329-A (GB)
Title: Improvements in road gritting machines
IPC: E01C19/20
Filed: 1942-02-18
Abstract: 555,329. Road grit distributers. INGHAM K. R. Feb. 18, 1942, No. 2151. [Class 6 (i)] Road gritting machines are fitted with alternate y usable sets of wheels, the pneumatic or solid rubbertyred wheels b being for use during transport only and the roller or steel-tyred wheels g for use during grit distribution. The change-over may be effected by leverage on the draw-bar i which is for the purpose swung upwardly and detained by a pin engaging the upper part of the frame j. A castor-wheel e, used with the wheels b also has upper and lower positions as shown.
Patent GB-1534762-A (GB)
Title: Base material for artificial leather
IPC: D04H1/4334
Filed: 1976-01-21
Abstract: 1534762 Non-woven fabric BAYER AG 21 Jan 1976 [23 Jan 1975 (2)] 02296/76 Heading D1R A base material for artificial leather comprises a fibre fleece impregnated with a rubber latex and has a water vapour absorption capacity of 2 to 8% by weight, a tensile strength of 30 to 250 kp/cm<SP>2</SP> and an elongation at break of 30 to 150%. The fleece may be a needled and shrunk fleece of polyamide, polyester, polypropylene, viscose rayon. It is impregnated with a latex comprising rubber, a heat sensitiser, a vulcanisation paste and an inert expanding agent, the mixture coagulated at 25 to 80C and vulcanised with steam at 100 to 200C and the impregnated fleece dried, split and provided with a thin microporous polyurethane layer. The rubber may be natural rubber or a carboxylated or non carboxylated synthetic rubber based on a copolymer of butadiene with acrylonitrile, styrene or an acrylic ester or chloroprene, isoprene or copolymers thereof. The polymer may contain amide groups or N-methylol acrylamide. The heat sensitiser may be polyvinyl methyl ether, polyethylene and polypropylene oxide adducts and/or their co-adducts, a polyalkyl or polyaryl substituted polyether siloxane or an ethylene diamine polyether adduct. The vulcanisation paste preferably comprises 0.5 to 10 parts (by weight) zinc oxide, 0.2 to 10 parts sulphur, 0.2 to 3 parts water-soluble accelerator, 0.2 to 3 parts water insoluble accelerator, 2 to 15 parts titanium dioxide (as filler), 0.1 to 5 parts dispersing agent and 10 to 50 parts water. 10 to 100 parts paste are mixed with 100 parts rubber (based on the weight of dry substance). The water soluble (and therefore quick acting) accelerator is the ammonium, alkali or alkaline earth salt of dimethyl, diethyl, diisopropyl or dibutyl dithiocarbamic acid, optionally combined with a salt of mercaptobenzothiazole. The water insoluble accelerator is selected from the zinc salts of the above mentioned dithiocarbamic acids, zinc mercaptobenzothiazole and bis (dimethylthiocarbamyl) disulphide. The expanding agent may be selected from silicone oil, stearyl isocyanate, perfluorinated stearic acid, polyvinyl methyl ether, a mixture of a polyether siloxane with polyethylene or an expoxide resin or a condensate of a N-methylolated melamine, urea or cyclic urea with a fatty acid, amide, alcohol or amine, e.g. the condensate of hexamethylolated melamine with behemic acid.
Patent GB-495244-A (GB)
Title: Improvements in or relating to air-raid and like shelters
IPC: E04H9/10
Filed: 1938-01-24
Abstract: 495,244. Air-raid shelters. CHELMA, Ltd., LUTIN-OLOMOUC. Jan. 24, 1938, No. 2325. Convention date, Jan. 26, 1937. [Class 20 (i)] An air-raid or like shelter comprises a plurality of iron sections 10 of arcuate form which are rigidly secured to a concrete or masonry foundation and are covered by sheets 15 of non-corrosive metal, the structure being covered by a layer of earth or the like. The sheets may contain a large copper content or may be of zinc, and are riveted or welded to the sections 10. The lower ends of the sheets and sections are embedded in the legs 2, 3 of the concrete foundation.. The transverse edges of the sheets are bent over to engage with angleiron bars 25 which thus interconnect adjacent sheets. The shelter may be built on ground level or it may be partially or wholly arranged underground.
Patent GB-265367-A (GB)
Title: Improvements in or relating to brakes for cycles
IPC: B62K19/38
Filed: 1926-01-27
Abstract: 265,367. Birmingham Small Arms Co., Ltd., and Baylay, W. L. Jan. 27, 1926. Brake mechanism. - In cycle brakes of the type having a flexible transmission formed of a rod, chain, wire, &c., a grooved guide-pulley or roller 2, rotatably mounted on the underside of the bottom bracket &c. 1 of the cycle frame around which the flexible transmitting-member 6 is required to pass, is formed with a gapped or cutaway part, 3 forming shoulders 7 adapted to limit the backward and forward rotary movement of the roller by engagement with a slotted supporting-lug 4 secured to, or former integral with, the bottom bracket &c.
Patent GB-489181-A (GB)
Title: Improved means for fixing and securing lavatory basins and holders and supports for toilet articles to walls and like surfaces
IPC: A47K5/02
Filed: 1937-01-27
Abstract: 489,181. Brackets. JOHNS & CO., Ltd., E., and CORN, E. R. Jan. 27, 1937, No. 2350. [Class 52 (v)] In brackets for attaching lavatory basins and holders for toilet requisites to walls and the like of the kind wherein the back of the article has a tapering dovetailed recess 8 to engage slidably a wall bracket 4 of corresponding shape, the wall bracket is provided with a resilient tongue 6 and the article with an abutment 12 which engages the tongue in a ratchet-like manner to prevent displacement of the article after it has been slid downwardly on to the bracket. The recess 8 entirely encloses the wall bracket, and the upper section of its rim may have a cement or earthenware insertion which can be removed to enable a tool to be inserted to depress the tongue 6 for authorized removal.
Patent GB-240349-A (GB)
Title: Window blinds
IPC: E06B9/58
Filed: 1925-01-27
Abstract: 240,349. Norton, H. Jan. 27, 1925. Roller blinds. - The free end of a blind 10, wound upon a spring roller 11, is provided with a hollow weighted rod 25 having sleeves 21 secured in the ends thereof and through each of which a spindle 18 is adapted to slide, a carrier plate 13 being pivoted to each spindle and provided with two grooved rollers 15 engaging a guiding rail 12, of substantially T-section, secured to the window frame. A compression spring 24 is arranged on each spindle 18 between the sleeve 21 and an end enlargement 23 on the spindle.
Patent GB-951517-A (GB)
Title: Elastomer compositions
IPC: C08K5/32
Filed: 1962-01-23
Abstract: A composition comprises an elastomer and 2-4-dinitroso-resorcinol made by heating together at 200 to 400 DEG F. in the absence of sufficient vulcanizing agent to cause vulcanization.  The elastomer is selected from natural rubber, aliphatic conjugated diolefin homopolymers, or copolymers containing at least 50% thereof and butyl rubber.  The 2-4-dinitrosoresorcinol may be present in amount from 0.1 to 5 parts per 100 elastomer.  The usual vulcanizing ingredients may be present.
Patent GB-1424162-A (GB)
Title: Elektroconductive material
IPC: C04B28/26
Filed: 1974-01-18
Abstract: 1424162 Conductive cement compositions SIBIRSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT ENERGETIKI 18 Jan 1974 02491/74 Heading C1H [Also in Division C3] An electroconductive material comprises in per cent b.v. dispersed carbon max. size 3 Á 6À75-85; dielectric filler 1-60; and silicate binder 7-85. The binder can be cement ŒNa water glass or Na water glass and Na silicofluoride. Quartz, Al 2 O 3 , MgO and slag pellets are used as fillers optionally with rubble marble crumb or metal reinforcements. Carbon larger than 3 Á can also be included.
Patent GB-214352-A (GB)
Title: Improvements in and relating to sparking plugs for internal combustion engines
IPC: H01T13/16
Filed: 1923-01-29
Abstract: 214,352. Turpin, T. K. Jan. 29, 1923. Sparking-plugs. - Plugs with valve-controlled hollow electrodes are provided with a cup 20 close to the spark gap, for holding a quantity of starting fluid. Translucent insulation may be used. Reference has been directed by the Comptroller to Specifications 15880/05, 102,260, 142,396, and 171,279.
Patent GB-1497082-A (GB)
Title: Ion exchange process and apparatus
IPC: B01D15/04
Filed: 1975-01-21
Abstract: 1497082 Ion-exchange HAGER & ELSASSER 21 Jan 1975 [24 Jan 1974] 2590/75 Heading B1J In a process for cyclic operation of an ion exchange mixed bed installation, the ion exchange masses through which the untreated water flows are batchwise and cyclically fed to a back-rinsing column, then to a system in which regeneration and washing is effected and thence returned to a treatment container, the drainage in the back-rinsing column occurring by means of drainage pipes which extend downwardly in the back-rinsing column from the upper end thereof separating the ion exchange masses in the back rinse column into a cation exchanger mass, a mixture of cation and anion exchanger masses, and an anion exchanger mass respectively along and simultaneously with contaminations being rinsed out, the cation and anion exchanger masses then being separately drawn off, through said pipes, conveyed into separate containers for washing and regeneration purposes and then again admixed prior to re-use, and said drainage pipes have their ion exchange mass entry openings set at such a spacing from one another that the exchanger mass present between the levels of said openings amounts to a multiple of the respectively cyclically conveyed ion exchanger masses. As shown, 26 indicates the back-rinse column; the denser resin, usually the cation exchanger, is removed by pipe 30; the whole bed descends and the less dense resin usually the anionexchanger, is then withdrawn by pipe 28. 18 represents a measuring column the volume of which-one "charge"-is the volume of resin moved at one time. In a preferred embodiment the back-rinse column has a volume of 10 charges and normally holds 5 charges of resin; the volume between the ends of the pipes 28 and 30 is three charges. After regeneration the resins are introduced into column 41 to be thoroughly re-mixed before admission to column 10 in which the ionexchange process takes place.
Patent GB-545921-A (GB)
Title: An improved mirror
IPC: A45D42/04
Filed: 1941-02-26
Abstract: 545,921. Mirrors. LAWRENCE, W. Feb. 26, 1941. No. 2618. [Class 52 (iv)] A portable mirror 17 normally enclosed in a sheath 10, has side pins sliding in grooves which limit its withdrawal but permit the mirror to be turned up into the sloping position shown where it is supported by the forward edge of the top surface of the sheath.
Patent GB-503882-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/42
Filed: 1938-01-27
Abstract: 503,882. Screw propellers. STEVENS, A. H. (Aviation Manufacturing Corporation) Jan. 27, 1938, No. 2622. [Class 114] Pitch change mechanism of a variable pitch screw propeller includes coaxial driving and driven elements surrounding the propeller shaft, which are provided with confronting annular divergent friction faces, and there is a coacting idler disc provided with friction faces adapted to be brought into engagement with the faces of the driving and driven elements at different radii for the purpose of producing rotation of the pitch mechanism. Each blade c is provided with a bevel wheel c<1> at its root which engages bevel d mounted upon the-hub and having internal teeth on an extension d<1>. Mounted upon an eccentric ring 38 is a member f having two sets of teeth differing in number by one, one set engaging the teeth on the sleeve d<1> and the other engaging the teeth on a fixed ring c. The eccentric ring 38 is continued as a sleeve and has an enlarged end l with a friction face l<1>. Opposite thereto is the friction face k' of a ring k fixed to the propeller shaft. Between these two faces is an idler disc m universally mounted upon a pin 45 which is carried by a straddle support 46 self-pivotally mounted, so that the idler may be moved to and fro, whereupon it tilts to different engagement with the two disc faces l<1> and k<1> whereby the pitch changing mechanism is rotated, The to-and-fro motion of the idler is effected by a lever 51 which is under the restraint of a spring 50 and also under control by hydraulic pressure on the piston 49 in the cylinder 48. The pressure may be controlled manually or automatically. So that the idler is removed from contact with the faces when not required the pivot of support 46 is eccentrically mounted in a further pivoted arm under the control of a second spring and hydraulic piston. In order that the mechanism may be used, when the driving engine cuts out, to rotate the blade into the feathering position, a brake shoe 62 may be applied to the two faces at their upper position so that the mechanism is rotated rapidly, and when the blade is stopped in that position, the brake acts to hold the propeller shaft fixed, Normally the brake is held off by a latching device 73 under the operation of a solenoid 68, the latch being freed when the engine circuit is open, that is when the ignition of the driving engine fails. There is also provided a hand operated switch for opening the engine circuit and releasing the latch. The brake shoe is applied by liquid pressure on the piston 80 which is under spring restraint 67.