baber/WOPTO huggingface dataset:
Patent GB-416701-A (GB)
Title: Improvements in tyre deflation indicators
IPC: B60C23/08
Filed: 1933-07-15
Abstract: 416,701. Wheel tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, HARDEMAN, W. E., and DAW, R. F., Fort Dunlop, Birmingham. July 15, 1933, Nos. 20065 and 24029. [Class 144 (i).] A device for indicating tyredeflation comprises a flexible inextensiblemember in a resilient casing which is supported from a spring or like part of the vehicle and fitted with means adapted to engage the road when the wheel drops, the pull on the flexible member being utilized to close an electrical signalling - circuit. As shown, an inextensible cable 22 is secured at its lower end to a plug 21 in a bracket 13 which is fitted with an adjustable bolt &c. 15 normally clear of the road surface. The upper end of the cable is connected to a washer 34 carrying a spring 30 which is normally clear of spaced terminals 31 in the signalling-circuit 32. The cable passes through a casing 25 surrounded by a rubber sleeve 27 around which a closely-coiled helical spring 12 is fitted, the ends of the spring being secured to the plug 21 and a box 7 carried by the attachment-bracket 1. In operation, distortion of the spring 12 (due to the drag of the bolt 15 on the road) exerts a pull on the upper end of the cable 22 causing the spring 30 to bridge the terminals 31 and actuate a visible or audible signal.
Patent GB-651844-A (GB)
Title: Improvements in or relating to the deflection of a cathode-ray beam in synchronism with a scanned beam of radiant energy
IPC: G01S13/42
Filed: 1947-07-25
Abstract: 651,844. Cathode-ray oscillographs. SPERRY GYROSCOPE CO., Inc. July 25, 1947, No. 20095. Convention date, July 27, 1946. [Class 37] [Also in Group XL (c)] Cathode - ray tube apparatus for indicating the instantaneous angular position of a radar antenna exciting a spiral scan (see Group XL (c)) comprises two alternating current generators 1, 2 driven in dependence of the spin and nod motions of the antenna to generate currents the frequencies of which are the sum and difference, respectively of the frequencies of spin and nod. The generators are of a permanent magnet type and each has two phases displaced by 90 degrees, the corresponding phases being connected in series to the plates of the cathode-ray tube 3 to cause the beam to image the spiral motion of the antenna.
Patent GB-730885-A (GB)
Title: Improvements in kiln bottom floors and blocks therefor
Inventor: SALISBURY JOHN
IPC: F27D1/04
Filed: 1952-10-09
Abstract: 730,885. Kiln floors. HEMEL HEMPSTEAD PATENT BRICK CO., Ltd. Aug. 25 1953 [Oct. 9, 1952], No. 20097/52. Class 51 (2) A kiln for firing ceramic goods has a floor comprising a series of narrow rectangular blocks 1 formed with vertical slots 6 and inter-engaging tongues 4 and grooves 5, the said blocks being supported at each end by upwardly tapering blocks 3 resting on pillars 2. In a modification, Fig. 2 (not shown), the sides of the blocks 1 are fluted or grooved so that adjacent blocks form vertical slots similar to the slots 6. The arrangement gives a readily laid, stable floor with even unimpeded air distribution, the total crosssectional area of the slots being approximately 19 per cent of the floor area.
Patent GB-942867-A (GB)
Title: Improvements in or relating to the electrodeposition of nickel
IPC: C25D3/18
Filed: 1960-06-09
Abstract: Nickel plating baths are improved by adding a coumarin compound of formula <FORM:0942867/C3/1> where n is 1 or 2, X represents a hydrogen, chlorine, or bromine atom, the NH-group being attached to the adjacent benzene ring in the 5, 6, 7 or 8 position, and when n is 1, Y represents a hydrogen atom, a phenyl group, or a monovalent aliphatic group containing 1 to 4 carbon atoms, and when n is 2, Y represents a phenylene group, a divalent aliphatic group containing 1 to 4 carbon atoms or a covalent bond. These compounds which are of high m.pt. can be used alone or with (a) sulphonic acids, sulphonimides, and sulphonamides, e.g. dibenzene sulphonamide, (b) chloral hydrate, bromal hydrate, or formaldehyde, (c) anti-foaming agents e.g. sodium 2-ethyl hexyl sulphate.  A small amount of fluoboric acid may be added to suppress the precipitation of iron. The nickel salt used in the plating bath can be sulphate, chloride, fluoborate, sulphamate, or in the form of a Watts bath. In the examples, baths containing nickel sulphate or chloride have added thereto 6-acetamino coumarin, 6-acetamino 3-bromo coumarin, and oxalyl 6.61-diamino dicoumarin, together with formaldehyde, 2-butane 1.4-disulphonic acid, allyl sulphonic acid, or allyl quinaldinium bromide.  The plating may be effected with air agitation.
Patent GB-811423-A (GB)
Title: Method of, and apparatus for, the pulverization of thermoplastic materials
IPC: B02C13/00
Filed: 1955-07-14
Abstract: 811,423. Pulverizing thermoplastic materials. ENGEL, T. July 14, 1955 [Aug. 31, 1954], No. 20429/55. Class 59 A plant for pulverizing thermoplastic materials, e.g. polyethylene comprises a high-speed rotor 1 provided with jaws 2 which co-operate with the rasp-like internal surface of a metal screen 3, and means, preferably an exhauster, for continuously passing a current of cool air through the plant.
Patent GB-714389-A (GB)
Title: Improvements in ventilating arrangements for motor vehicles
IPC: B60H1/26
Filed: 1952-08-18
Abstract: 714,389. Vehicle bodies. PORSCHE, F. Aug. 18, 1952 [Nov. 20, 1951], No. 20687/52. Class 108(1) A motor vehicle having a door 13 pivoted at 18 to the door post 4 is provided with a space 20 which accommodates the forward part of the door when open and which is used as a collecting space for ventilating air which enters through the door chink 17 situated in a pressure region of the air flow. Air may be admitted through the valve 24 to the interior of the vehicle or through valve 28 to the interior of the door post 4 where it mixes with heated air conveyed from the rear-engine space via the longitudinals 1.
Patent GB-499819-A (GB)
Title: Improvements in linear measuring devices more especially for use in the game of bowls
IPC: G01B3/10
Filed: 1937-07-27
Abstract: 499,819. Measuring-tapes. TAYLOR, J. W. July 27, 1937. No. 20695. [Class 106 (ii)] A steel tape for use in the game of bowls is of arc-shaped cross-section and normally coiled in a casing adapted to stand on the ground, the casing being provided with a rib or arm adapted to contact with the wood while the end of the tape is provided with a finger adapted to contact with the jack. The casing B is rectangular with a flat base, the opening for the tape A being near the base. The tape A which is of steel and of arc-shape section is either wound on a drum in the casing or coiled in an interior circular casing B<1>. When the tape is wound on a drum, the latter is fitted with a spring which is wound up by withdrawal of the tape, and when used with casing B<1>, the tape is attached to a spring at the inner end which spring is attached to a central point in the casing. The rear end of the casing B is provided with a pivoted finger D, the rib D<1> of which is square to the base and when raised may be placed to engage the wood Q. It may be turned down when not in use. The free end of the tape A is fitted with a finger E which is always square to the tape when the latter is drawn out and is adapted to engage the jack R a foot F preventing rocking. A spring operated clamp H adapted to be released by a pivoted finger piece M grips the tape against a fixed piece G. A guard N protects the finger E when the tape is returned to the casing.
Patent GB-662385-A (GB)
Title: An improved drip-feed device
IPC: B65D51/24
Filed: 1949-08-09
Abstract: 662,385. Drop delivery apparatus; lubricating cans &c. MAREK, A. J. Aug. 9, 1949, No. 20708/49. Classes 66 and 125(iii) A drip-feed device for a bottle, can or the like comprises an elongated metal strip 1 of trough section which is slidably mounted in a round axial hole 2 in a bung 3 fitting into the neck of the container 5, so that the strip, which is normally housed in the container, can be extended therefrom when required to be used, the tilting of the container then causing the liquid therein to flow along the strip to fall from its shaped end 6 in the form of drops or in a thin stream, air passing back into the container through the upper half of opening 2. To prevent transverse movement of the strip, flanges 8 are formed thereon and engage in grooves in the bung 3, as shown in Fig. 6, whilst a flange 7 formed on the inner end of the strip prevents it from being pulled right out of the container. When not in use the strip is pushed back into the container and a cap, formed with a pocket to receive the protruding end of the strip is screwed on to the container neck.
Patent GB-1067732-A (GB)
Title: Improvements in corneal contact lenses
IPC: G02C7/04
Filed: 1964-05-20
Abstract: 1,067,732. Contact lenses. CORNEAL LENS CORPORATION PTY. Ltd. May 20, 1964 [May 20, 1963], No. 20873/64. Heading G2J. A corneal contact lens comprises an optic section 2 for correcting vision and a peripheral band 3, the inner surface of which forms a frustum of a cone having its apex on the axis of the optic section, said frustum being tangential to the inner surface of the optic section at the line of intersection therewith. The peripheral edge of the lens is rounded so that it clears the surface of the eye when the lens is placed on the cornea.
Patent GB-1314727-A (GB)
Title: Web cutting and feeding apparatus
IPC: B65H20/04
Filed: 1970-04-30
Abstract: 1314727 Cutting webs XEROX CORP 30 April 1970 [2 May 1969] 20902/70 Heading B4B A method of cutting a sheet from a web of material while continuously feeding the leading portion of the sheet to an electrostatographic copier comprises, continuously feeding the leading portion of the web through a cutting station towards the copier, forming a buckle in the web between its leading portion and the cutting station, stopping the portion of the web in the cutting station after the desired length of web has passed therethrough, and cutting the web to form a sheet of the desired length. In apparatus described for performing the method, Fig. 2, a web 71 of paper or plastic is fed from a reel by a first pair of feed rollers 79, 83 through a cutting station 100 and then by a second pair of feed rollers 78, 80 to the drum of a xerographic apparatus. The rollers 78, 80 are driven more slowly than the rollers 79, 83 so that a buckle is formed in the web between the rollers 78, 80 and the station 100.  At the cutting station 100, Fig. 3, is provided a fixed blade 82, and a blade 81 mounted on a pivoted arm 114 which is rotated clockwise, to cause the web to be cut, by engagement of a pusher 155 with a toggle latch 115 connected to the arm 114. The pusher 155 is operated by a cam mechanism which also controls a clutch in the drive to the feed rollers 79, 83, so that the feed rollers are stopped to hold the adjacent portion of the web stationary whilst the cutter blade operates. The feed rollers 78, 80 continue to rotate during cutting of the web, the buckle of excess web acting as the source of web for such feed. The cam mechanism controls the lengths of the sheets cut. A manually operable guide 126 may be pivoted to the position shown in dashed lines when it is desired that the sheet cut, e.g. the first sheet of a roll, is not fed to the xerographic apparatus.
Patent GB-220804-A (GB)
Title: Improvements relating to means for transmitting rotary motion
IPC: F16H49/00
Filed: 1923-08-17
Abstract: 220,804. Gardner, C. S. Aug. 17, 1923. Spigot-and-socket joints. - Tubes N are connected to bored bosses M on a sprocket wheel casing C by being fitted into junction sleeves M<2> bearing against springs M<3> and secured by union nuts V.
Patent GB-404734-A (GB)
Title: Improvements relating to rotary transformers for direct electric currents
IPC: H02K47/16
Filed: 1932-07-25
Abstract: 404,734. Rotary transformers. PESTARINI, G. M., 4, Tapton House Road, Sheffield. July 25, 1932, No. 20990. [Class 35.] The invention relates to a machine transforming continuous current at a fixed voltage and variable current into a substantially constant current at variable voltage or into a current which is related to the voltage in accordance with a desired law. The rotor consists of a normal continuous current armature 1 with primary and secondary brushes 5, 6 and 10, 11 respectively and the stator has a regulator winding 2 to maintain the speed constant. According to the invention, the regulator winding is supplied with continuouscurrent from two shunt excited machines 12, 13 connected in opposition and driven by the transformer, the machine 12 having a normally saturated field and the other 13 an unsaturated field ; the voltages of the two machines are equal at the desired transformer speed but when the speed departs from the normal, current flows in the appropriate direction through the winding 2, to correct the deviation. The secondary circuit instead of being connected across the secondary brushes 10, 11 may be in two parts, one part being connected across a primary brush and a secondary brush and the other part across the remaining brushes. The machine 12 may supply other circuits.
Patent GB-618885-A (GB)
Title: Improvements relating to the moulding of articles made of or comprising synthetic resin
IPC: B29C33/52
Filed: 1946-07-13
Abstract: 618,885. Moulding pipes and other hollow articles. MIESZKIS, K. W. July 13, 1946, Nos. 20997 and 21064. [Class 87 (ii)] The inside of a moulded hollow plastic article 11, Fig. 2, is formed by one or more solid preformed cores 10 of a metal alloy fusible at a temperature below the moulding temperature and, after melting, the core takes an active part as a medium transmitting pressure to the interior of the moulded article from an external source. The core, which may be an assembly of several parts to give it the required shape, is covered with the material to be moulded, e.g., cloth impregnated with resin, and placed in a two-part mould 14, 15, which is subjected to hydraulic pressure and is maintained at the required temperature. Molten alloy is contained in a vessel 16 which, with the pipework &c., is kept at a temperature above the melting point of the alloy. The valves 18 and 19 are closed and the alloy is forced up the pipe 21 through the open valve 20 and into the bottom of the mould by compressed gas admitted through the valve 25. The alloy reaches the top of the mould through the ducts 22 and 23, air escaping through the valve 24. When all the spaces are full of the alloy the valves 20 and 24 are closed and the valves 19 and 26 are opened, so connecting the pipes leading to the mould with a hydraulic pump (not shown) through the vessel 17 which is partly filled with alloy and partly with a hydraulic liquid. Pressure (shown on the manometer 27) can thus be applied to the molten core. After a time the valve 19 is closed and the valve 24 opened to allow gases from the resin to escape. When moulding is complete the valve 19 is closed and the pressure is released by opening the valves 20 and 24, and the alloy returns to the vessel 16. To guard against spoiling the shape of the article by the core 10 melting, when put in the hot mould, before the mould is closed, an intermediate mould may be used of a suitable metal, e.g., stainless steel, as shown in Fig. 4, in which the plastic material 30 and fusible core 31 in the intermediate mould 32, 33, 34 are placed in a moulding chamber 38 and the intermediate mould is supported by blocks 40, 42 leaving a free space 41 for the flow of the molten alloy. The alloy 31 melts and connects with the molten alloy 41 through holes 35 in the intermediate mould, so equalising the pressure inside and outside the intermediate mould and preventing it from bursting. In a simpler arrangement, the walls of the intermediate mould are supported by the wall of the main mould, which has the same internal dimensions as the external dimensions of the intermediate mould. Specification 605,820 is referred to.
Patent GB-586616-A (GB)
Title: Production of television mosaic screens
IPC: H01J29/43
Filed: 1944-10-27
Abstract: 586,616. Cathode - ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FAGAN, C. P. Oct. 27, 1944, No. 21009. [Class 39 (i)] The production of a mosaic electrode for a television camera tube involves the initial step of printing the mosaic pattern on one side of an insulating sheet 'by means of an etched metal plate, using a silver oxide ink. A coating of colloidal graphite or liquid bright silver on the other side of the insulating sheet forms the signal plate. A silver oxide ink is made by adding 40 grams of the oxide to 100 c.c. of a 1 per cent solution of pyroxylin in amyl acetate and ball-milling the whole to a smooth consistency. The oxide on the printed mosaic is reduced to silver by heating.
Patent GB-656099-A (GB)
Title: Machine for the automatic applying of unpierced bearing stones to carrier members
IPC: B24B9/16
Filed: 1948-08-10
Abstract: 656,099. Hopper discharge. BRUGGER, R., and SCHNYDRIG, A. Aug. 10, 1948, No. 21069. [Class 78 (i)] [Also in Groups XXII and XXIV] A machine for applying bearing stones, e.g. watch bearings, to carrier pins for the purpose of facilitating their subsequent drilling (see Group XXII) includes a magazine 75 from which the bearings are extracted one at a time by a suction nozzle 53, Fig. 19. The magazine comprises a cup-shaped part 75 and a relativelyrotatable closure 75a mounted on a shaft 74 and held in normal relation by a spring 80 ; at one side the part 75 is formed with a channel 86 leading to an outlet channel 87 which is normally closed by the part 75a. The shaft 74 is driven from a cam 18, Fig. 20, on the main drive shaft 19 through a rack-and-pinion device 91, 92 so that the magazine as a whole is first rotated clockwise to permit bearings to be fed forward in the channel 87 and then returned to a position in which the channel is horizontal and disposed opposite the suction nozzle 53 ; in the latter part of the return movement of the magazine, extensions 75a<1>, 75a<11> on the two parts successively strike stops 89, 90 so that the parts move relatively to each other to an extent sufficient for the endmost bearing in the channel 87 to be exposed. At this stage, a cam on the shaft 19 opens a valve in the suction line and the exposed bearing is then drawn on to the nozzle which is moved rearwardly with the bearing. Cam means then move the nozzle away from the magazine, and advance it first to a position in which the bearing is centred and then to a position in which the bearing is pressed on to the adhesive-coated end of a carrier pin. The part 75a of the magazine has a window opening 83 closed by a transparent disc 75b.
Patent GB-1375461-A (GB)
IPC: G03F7/021
Filed: 1972-05-05
Abstract: 1375461 Photo-curing vinyl/phenol polymers OCE-VAN DER GRINTEN NV 13 April 1973 [5 May 1972] 21191/72 Heading C3P [Also in Division G2] A photosensitive material preferably for the production of printing plates comprises a lightsensitive compound and a homo- or co-polymer of a vinyl phenol. Specified light-sensitive compounds are azides, quinone diazides, diazonium compounds, polymers containing azide, quinone diazide and diazonium groups, and organic halogens admixed with polyethylene oxides. In the examples a condensation product of naphthoquinone-1,2-diazide-5-sulphochloride and 3,5-dimethylphenol, 1-azido-2,5-dimethoxy- 4-(p-tolythio)benzene, an iminoquinonediazide, a benzoquinone diazide sulphonamide or a diazodiphenylamine/formaldehyde condensate is admixed with a polymer of o- or p-vinylphenol, coated on a support, image wise exposed and developed with alkali or a solution containing sulphuric acid and an organic solvent to produce a positive printing plate if a naphthoquinone diazide is used; otherwise a negative plate is produced. The light-senstive layer may also contain a novolak.
Patent GB-182350-A (GB)
Title: Improvements in stair and the like treads
IPC: E04F11/16
Filed: 1921-08-10
Abstract: 182,350. Assirati, C. Aug. 10, 1921. Treads and wearing-surfaces.-A tread for stairs and the like consists of a series of corrugated-metal strips A set on edge within a frame C which is held together by long bolts D passing through the filling blocks B and apertures in the strips. Specification 17324/07 is referred to.
Patent GB-757505-A (GB)
Title: Improvements in and relating to the production of dicarboxylic acids
Inventor: BERNEIS KURT HELMUT
IPC: C07C51/265
Filed: 1953-07-31
Abstract: Aromatic dicarboxylic acids are produced by treating an alkyl-substituted aromatic hydrocarbon having a structure <FORM:0757505/IV(a)/1> where R1 and R11 are alkyl groups, having tertiary carbon atoms adjacent to the benzene ring, with a gas containing free oxygen, in the presence of an inert liquid diluent, the reaction mixture being maintained at a temperature within the range of 130 DEG  to 230 DEG  C. and containing a catalyst comprising a manganese salt soluble in the reaction mixture under the conditions of operation but being free from compounds of any metals other than manganese.  Specified starting materials are the di-isopropyl and di-sec. butyl benzenes.  The gas containing free oxygen may be air, oxygen itself, or oxygen admixed with inert gaseous diluents such as nitrogen.  The inert liquid diluent is an organic liquid which is substantially inert under the reaction conditions and has a boiling point higher than the temperature of operation.  Specified inert diluents are acetic, propionic and butyric acids, tert.-butyl benzene, tetrachloroethane, o-dichlorobenzene, mixtures of dichlorobenzenes, or polychlorobenzenes obtained as by-products in the monochlorination of benzene.  Suitable catalysts are the manganese salts of carboxylic acids such as the acetate, cumates, naphthenate or stearate.  In examples: (1) a mixture of m- and p-diisopropylbenzenes dissolved in tetrachloroethane and with manganese acetate as catalyst, was treated with oxygen and the reaction product separated into a benzene insoluble portion, i.e. iso- and tere-phthalicacids and a benzene soluble portion, i.e. m- and p-cumic acids; (2), (3) and (4) mixtures of dissopropyl benzenes in o-dichloro benzene were treated with oxygen under various conditions to elucidate the optimum values of volume ratio of hydrocarbon: diluent, temperature of operation and amount of manganese acetate catalyst; (5) a mixture of dissopropyl benzenes was treated as in (1) but using o-dichlorobenzene as inert diluent and recycling the benzene soluble material.
Patent GB-300159-A (GB)
Title: Improvements in and relating to cutters for recessing the gudgeon-pin holes of pistons
IPC: B25B27/00
Filed: 1927-09-01
Abstract: 300,159. Turnbull, H. Sept. 1, 1927. Drilling - machines ; cutters.-In a device for recessing the interior of the gudgeon pin holes in reciprocating-engine pistons for the purpose of receiving a spring ring to hold the gudgeon pin in position, a cutter a formed from sheet metal has a projecting tooth b and an eccentric rectangular hole c. A mandrel d provided with an operating handle e has a tapered stem f of rectangular section, and in use is passed through the hole in the cutter and into the interior of the hollow gudgeon pin g, pressure on the handle causing the cutting tooth b to be forced radially outwards so as to cut a recess h on rotation of the mandrel. A collar j secured by a set screw on the gudgeon pin secures the latter in position during cutting. The device may be used in an old piston where the gudgeon pin holes have become enlarged and the pin has been shortened.