baber/WOPTO huggingface dataset:
Patent GB-1132889-A (GB)
Title: Screw and nut mechanism
Inventor: CAIRNS STUART JAMES
IPC: F16H25/22
Filed: 1966-07-11
Abstract: 1,132,889. Screw-and-nut gearing; disc brakes. ROTAX Ltd. 11 July, 1966, No. 31020/66. Headings F2E and F2Q. In a recirculating ball type screw-and-nut mechanism (Fig. 1, not shown) having an efficiency greater than 50%, one member of which is driven from an input shaft 19 through a worm 18 and wormwheel 12, also with an efficiency greater than 50%, to move a load applied to one of the members, on removal of the driving effort on the shaft 19 the axial thrust thereon due to the load on the screw-and-nut gearing actuates a braking device associated with the shaft 19 to prevent rotation of the gearing. The shaft 19 runs in thrust bearings 25 housed in rotatable collars 24 connected to the shaft 19 by one-way clutches 27. Fixed annular friction pads 26 are engageable by the outer end faces of the collars 24 for braking. When the shaft 19 is driven in one direction, the axial thrust on the worm 18 will cause one collar 24 to engage its pad 26, so that the collar remains stationary, the associated one-way clutch allowing rotation of the shaft. On removal of the drive, the thrust on the worm remains in the same direction, but the shaft 19 will be urged to rotate in the opposite sense by the load, the one-way clutch engaging to prevent such reverse rotation. To allow the load to move in the return direction, the shaft 19 must be driven to overcome the friction torque due to the collar 24 and pad 26. The second collar/pad assembly is effective for a load in the opposite direction. The worm-wheel 12 may be secured between two nut members (16), rotatable but axially located, with the screw (14) axially movable (Fig. 1, not shown), or alternatively the wormwheel may drive the screw, and the nut member be connected to the load.
Patent GB-282548-A (GB)
Title: New azo dyestuffs and their application
IPC: C09B35/46
Filed: 1926-12-07
Abstract: 282,548. British Dyestuffs Corporation, Ltd., and Moss, H. W. Dec. 7, 1926. Trisazo dyes dyeing cotton in bluish black shades which can be diazotized on the fibre and developed with the usual components, e.g. #-naphthol or m-toluylenediamine are made by coupling a diazotized nitramine or acidyldiamine of the benzene series, with or without other substituents, with a peri-aminonaphtholsulphonic acid in an acid medium, further coupling in an alkaline medium with a tetrazotized diamine of the benzidine series, and again coupling the resulting diazodisazo body with a-naphthylamine or its 6- or 7-sulphonic acids (or their technical mixture), the nitro group being reduced or the acidyl group removed by hydrolysis at any stage after the first coupling. In examples, (1) pnitraniline is diazotized and coupled with H-acid, the monoazo dye obtained is coupled with tetrazotized benzidine, and the product is coupled with a-naphthylamine, the nitro-group being finally reduced by sodium sulphide, (2) p-nitraniline is diazotized and coupled with H-acid, the nitro group is reduced, and the product is coupled with tetrazotized benzidine and a-naphthylamine, and (3) p-aminoacetanilide is diazotized and coupled with H acid, and the product is coupled with tetrazotized benzidine and a-naphthylamine, the acetyl group being finally removed by alkaline hydrolysis. In an example of the dyeing process, cotton is dyed with the dyestuff obtained in the examples, which is then diazotized on the fibre and developed with m-toluylendediamine, a deep black shade very fast to washing and to light is obtained. Dyestuffs from the following components are also specified :-p-nitraniline-o-sulphonic acid, 5-nitro- 2-anisidine, o-chlor-p-nitraniline, or m-nitraniline, H-acid, benzidine, and a-naphthylamine; pnitraniline, H-acid, dianisidine and a-naphthylamine; p-nitraniline, H-acid, benzidine and Cleve's acid; and p-nitraniline, 1: 8-aminonaphthol-4-sulphonic acid, benzidine and a-naphthylamine. Specification 15725/91 is referred to.
Patent GB-417084-A (GB)
Title: Improvements in or relating to the production of compositions and goods of rubber orsimilar material
IPC: C08L7/02
Filed: 1933-11-08
Abstract: Goods having a high degree of hardness and low extensibility are prepared from aqueous dispersions of rubber and the like which contain an admixture of flocculent precipitants of the type which are produced from dilute aqueous dispersions of rubber and the like by the formation of compounding ingredients in situ, such as by the process described in Specification 373,262.  Aqueous p  dispersions such as are produced according to Specifications 219,635 and 290,313, [both in Class 70], are particularly suitable.  In an example a paste like mass containing 12 1/2 per cent total solids and produced by the precipitation of aluminium silicate in 65 parts of 60 per cent latex diluted with 1500 parts of water is added to 308 parts of a 60 per cent latex containing 12 parts of casein solution, and well mixed by stirring.  The product is ready for use for the production of goods by any of the known methods.
Patent GB-799868-A (GB)
Title: Improvements in and relating to blocks, sheets and other articles of foam rubber and the like
IPC: A47C27/15
Filed: 1955-10-31
Abstract: 799,868. Cushions &c. WELCH, L. July 24, 1956 [Oct. 31, 1955], No. 31059/55. Drawings to Specification. Class 52(4) In a squab or sheet of aerated or foamed rubber or plastics material the density of the material is progressively and gradually varied throughout its thickness preferably by vibrating the mould containing the mix prior to curing.
Patent GB-174745-A (GB)
Title: Improvements in connectors for pipes, and the like
IPC: F16N21/04
Filed: 1920-11-03
Abstract: 174,745. Trier, F. H. Nov. 3, 1920. Couplings, disconnectible; spigot joints with slotted sleeve.-A ready connection for pipes, nozzles, &c., applied to grease guns for bearings &c., comprises a tube A, Fig. 4, fixed to the end of a pipe F and adapted to fit closely over or within a nipple, Fig. 2, mounted on the bearing, temporary connection being effected by a split sleeve B shaped to engage a rib P on, or a recess in, the nipple and retained by a sliding ring C. A resilient washer D serves as a packing between the nipple and the pipe F, and a spring-pressed ball or other valve in the nipple and a cap K, Fig. 9, to exclude dust, may be provided.
Patent GB-1001998-A (GB)
Title: Improvements relating to spraying and scraping devices
IPC: A47J17/02
Filed: 1963-08-07
Abstract: 1,001,998. Scraping and washing vegetables. P. MARTIN. Aug. 7, 1964 [Aug. 7, 1963], No. 31107/63. Heading A4C. A spray rose 2 having a perforated flat surface 3 on to which is releasably spigoted a disc 6 provided on at least its outer surface with cutting or abrading edges whereby vegetables are simultaneously washed and scraped. A projection 5 may be provided on the flat surface to receive the annular disc 6. Alternatively a spigot, which may be screw-threaded, is provided on the rear face of the scraping disc. The water inlet tube 1 portion of the rose 2 may be internally threaded for attachment to the water supply. With the abrading disc 6 removed the device may be used as a hair spray for example.
Patent GB-218236-A (GB)
Title: Improvements in carburetters
IPC: F02M9/08
Filed: 1923-12-11
Abstract: 218,236. Bugatti, E. June 25, 1923, [Convention date]. Addition to 205,088. Void [Published under Sect. 91 of the Act]. Spray carburettors.-The parent Specification describes a carburettor in which a tubular valve c rotates over a fixed internal core a containing a Venturi shaped passage a<1> into which discharges the fuel nozzle g. The invention consists in combining with the tubular valve a cam, eccentric or like member D mounted on a spindle f and so arranged as to control the fuel delivery from and the velocity of the air past the nozzle g. The member D is independently adjustable, and the air stream is tangential to its surface opposite. the nozzle, orifice.
Patent GB-1383177-A (GB)
Title: Slag forming agent for steel making
IPC: C21C5/28
Filed: 1972-07-04
Abstract: 1383177 Slag former for steel production AIKOH CO Ltd 4 July 1972 [10 July 1971]  31185/72 Heading C7M A slag forming composition for a steel making process comprises in wt per cent 54-90 Al ash containing >30 Al 2 O 3 , 5-20 hydraulic cement, 2-10 Ca compound e.g. CaCO 3  or Ca(OH) 2 , 1-15 chloride e.g. NaCl or MgCl 2  and 1-7 water. The cement is preferably Portland or Al 2 O 3  cement but iron Portland cement or Portland blast furnace cement can also be used.
Patent GB-282034-A (GB)
Title: Improvements in or relating to apparatus for making carburetted water gas
IPC: C10J1/213
Filed: 1927-11-21
Abstract: 282,034. Humphreys & Glasgow, Ltd., (Assignees of Chrisman, C. S.). Dec. 10, 1926, [Convention date]. Water gas plant.-In a carburetted water gas set, a regenerator adapted to store the heat of the carburetted water gas is provided between the superheater and the wash box, and is used for preheating the blast. During the " blow " air is supplied by pipe 7 to the generator 1, and the blast gas passes by pipe 10 to the carburettor 2 and by pipe 11 to the superheater 3 entering by pipe 12 the waste heat boiler 5 and passing to the stack 6. During a " down-run " steam is admitted at 9 and the water gas after passing through and heating the clinker in the generator passes by pipe 14 to the wash box 4 and by pipe 15 to storage. During the " up-run " steam is introduced by pipe 8 and the water gas passes by pipe 10 to the carburettor and by pipe 11 through the superheater 3 and through an outlet 17 to a regenerator 18 which is filled with heat absorbing material 19. The cooled gas passes through a reversing valve 21 to the wash box 4 and by pipe 15 to storage. Air from pipe 22 is heated in the regenerator 18 and passes by pipe 23 to the generator inlet 7 and to the secondary air supply 13, and steam for the " down-run '' may be introduced by pipe 24 and after being superheated is passed by pipes 23 and 13 to the top of the generator in which case the steam supply 9 is not used. Water may be supplied by a pipe 25 to the regenerator. In a modified apparatus both the " up- " and " down-run " water gas are passed through the carburettor and superheater and thence through the regenerator which may have a chequer brick filling.
Patent GB-289727-A (GB)
Title: Improvements in or relating to ash trays
IPC: A24F19/00
Filed: 1927-11-22
Abstract: 289,727. Harman, D. L. Nov. 22, 1927. Ash-trays; cigar and cigarette rests.-The domed central portion 2 of the receptacle 1 allows ash &c. to slide to the part 3 through a narrow space 10 between the dome and the inclined annular cover 9. Grooves 11 constitute cigarette rests. A bayonet joint secures the cover and base together.
Patent GB-1474810-A (GB)
Title: Contact screen and method for non-linear transformations and filtering in coherent optical systems
IPC: G02B27/00
Filed: 1974-07-16
Abstract: 1474810 Half-tone contact screens spacial filtering FUJI PHOTO FILM CO Ltd 16 July 1974 [1 Aug 1973] 31344/74 Headings G2J and G2M A nonlinear half-tone contact screen for realizing nonlinear transformations in a coherent optical processing system comprises an array of dots on a screen such that the amplitude transmittance tA is proportional to the specific non- linear function F of exposure E within. The exposure range E 1  # E # E 2 , said nonlinear  function being expressed as tA = F(E), where E is the normalized exposure in the range 1 # E # E m , E = E/E 1  and E m  =E 2 /E 1 , the amplitude transmittance tA and the fractional area A of a half-tone dot being expressed as t<SP>2</SP> A  = T w -A (T w -T B ), where T w  is the intensity transmittance of the transparent area of a half-tone transparency and TB is the intensity transmittance of the opaque area of a half-tone transparency, and each dot in the array of dots has a light transmittance profile D s  (A) where D s  (A) = log E which is the density of the half-tone screen dot at the edge of the area A. The non-linear function F may be a logarithmic function where tA = log E/log E m  when D s  (A) = #1-A log E m , or a square-law function where tA = E/E m  when D s  (A) = log (#1-A.E m ), or an exponential function where tA = K<SP>E</SP> where K is a constant and when D s  (A) =  log (log#1-A/log K). The screen is made by fabricating a single dot having a density profile corresponding to the required light transmittance profile and photographically reproducing the dot to produce a periodic dot structure on a screen, e.g. by using a step and repeat camera, by using a pinhole array camera or by making a multiple exposure of different sized solid dots in register to make a stop approximation to the dot profile.
Patent GB-660077-A (GB)
Title: Improvements in and relating to the thermal control for heating devices
IPC: H05B1/02
Filed: 1949-12-07
Abstract: 660,077. Pressure cookers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 7, 1949 [Dec. 17, 1948], No. 31425/49. Class 28 (i). [Also in Group XXXV] A thermal control for a metallic vessel 1 of the type having an electric heating element 4 in thermal contact with a wall thereof has a first thermostat 13 mounted in thermally conductive relation with the wall 9 of the vessel at a point displaced from the heating element, and a second thermostat 19, included in the heater circuit 26, 27, having a heater 22 adapted to be energized by the first thermostat for operating the second thermostat to interrupt the flow of current through the circuit. The invention is shown applied to a pressure cooker the second thermostat being located in the handle of the vessel.
Patent GB-1078035-A (GB)
Title: Ferrite manufacturing process, whereby shrinkage of the initial mixture is avoided
IPC: H01F1/03
Filed: 1964-08-04
Abstract: 1,078,035. Magnetic compositions. C.O.- F.E.L.E.C. - COMPAGNIE DES FERRITES ELECTRONIQUES. Aug. 4, 1964 [Aug. 2, 1963], No. 31464/64. Heading H1H. A mixed ferrite is made by inclusion of a metal to replace, wholly or partly, one or more of the metal oxides in order to prevent shrinkage on sintering. The metal gains the required oxygen during sintering in an oxidizing atmosphere, and presintering is not required. A specified starting composition is 17.3 mol. per cent F 2 O 3 ,37.7 mol. per cent Fe, 30 mol. per cent MnO and 15 mol. per cent ZnO. The powder is formed into particles of 30-300 microns in size with an organic binder and sintered at a temperature between 1200‹ and 1500‹ C.
Patent GB-964190-A (GB)
Title: A pressure regulator
Inventor: MOSKOW EUGENE DONALD
IPC: G05D16/06
Filed: 1962-08-17
Abstract: 964,190. Valves. BENBOW MANUFACTURING CORPORATION. Aug. 17, 1962, No. 31618/62. Heading F2V. A combined pressure regulator and relief valve is provided with means whereby the relief valve can be opened manually without varying the loading of the regulator. A housing 11 is provided with an inlet 12, an outlet 14 and a chamber 17 bounded by a diaphragm 22. A valve member 40 is loaded by a spring 45 towards the closed position and has a stem 50 with a head 52 which normally engages a relief valve member 63. The valve member 40 is normally opened by a spring 30 acting on a diaphragm 22 to provide a constant outlet pressure in a known manner. If the outlet pressure exceeds a predetermined value, the valve 40 closes and the diaphragm lifts the member 63 to open a relief passage 64, 71. The member 63 is slidable in a housing 60 carried by the diaphragm and is normally held in the position shown by a rod 70 forcing balls 75 into a groove in the member 60. When the rod is raised, the balls move into a groove 68 of the rod and the member 63 is then moved with the rod 70 to open the relief passage thus draining the outlet side.
Patent GB-858581-A (GB)
Title: Polymerisation of conjugated polyenes
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F10/00
Filed: 1956-10-18
Abstract: Conjugated polyenes are polymerized by contact with a catalyst system formed by contacting a reducing component with preformed metastable titanium trichloride.  The polyenes, of which many are specified, may be aliphatic or cycloaliphatic, e.g. butadiene-1, 3, isoprene, chloroprene, piperylene, 4-methyl-hexadiene-1, 3 and 2, 3-diphenyl-butadiene and may be polymerized alone or inter se or in admixture with monoolifinic or non-conjugated polyolefinic compounds of which many are specified.  The reducing components are those which can be used for carrying out the process of Belgian Specification 543,292, e.g. the alkyl and aryl compounds of lithium, sodium, magnesium, zinc, cadmium, aluminium, tin and lead.  The polymerization is preferably effected with the reaction components dispersed in an inert liquid, e.g. aliphatic, cycloaliphatic, hydrogenated aromatic and halogenated aromatic hydrocarbons and in the absence of oxygen, carbon dioxide or water.  The examples describe the preparation of polymers from butadiene-1, 3, isoprene and mixtures of chloroprene with ethylene, butylene or isoprene in the presence of catalysts made from titanium trichloride and triethylaluminium, lead tetraethyl, tin tetraethyl, phenyl sodium, phenyl lithium, n-butyl lithium, n-butyl sodium, diethyl cadmium, phenyl calcium iodide, barium phenyl iodide, diethyl aluminium chloride, tri-isobutyl aluminium and di-iosbutyl aluminium hydride.ALSO:Finely divided metastable titanium trichloride which can be irreversibly converted to the stable form by the action of heat, e.g. at temperatures above 200 DEG C., is produced by passing titanium tetrachloride vapour and hydrogen free from oxygen through a silent electric discharge, preferably at a temperature between 0 DEG C. and 100 DEG C.  Any form of silent electric discharge may be used. Catalysts for the polymerization of conjugated polyenes are produced by mixing, preferably in an inert liquid vehicle, e.g. aliphatic, aromatic, cycloaliphatic, hydrogenated aromatic and halogenated aromatic hydrocarbons, metastable titanium trichloride and a reducing component as defined in Belgian Specification 543,292.  Specified reducing components are the alkyl and aryl compounds of lithium, sodium, magnesium, zinc, cadmium, aluminium, tin and lead; specific examples being lead tetraethyl, tin tetraethyl, phenyl sodium, phenyl lithium, n-butyl lithium, n-butyl sodium, diethyl cadmium, phenyl calcium iodide, phenyl barium iodide, triethyl aluminium, triisobutyl aluminium, tri-n-octyl aluminium, dimethyl aluminium methoxide, di-isobutyl aluminium hydride and diethyl aluminium halides.  In the example a catalyst is made by mixing triethyl aluminium and metastable titanium trichloride in the presence of toluene.
Patent GB-262658-A (GB)
Title: Improvements in devices for modifying the recoil of firearms
IPC: F41A21/36
Filed: 1926-05-31
Abstract: 262,658. Cutts, R. M. May 31, 1926, Machine guns; ordnance design.-A device for reducing recoil and counteracting upward or lateral movement of the muzzle on firing comprises a tubular muzzle attachment of larger bore than the bore of the barrel, having a restricted forward end and having one or more apertures asymmetrically arranged in its walls. As shown in Figs. 3 and 4, the attachment 1 is screwed on to the muzzle of the barrel 3 and comprises a cylindrical part forming an expansion chamber 6, and a front conical part forming a compression chamber 10. Two series of fared apertures 15, 16 are formed in the upper part of the front conical portion. The attachment is angularly adjustable so that the reaction of the gases is either vertical or at an angle. Various shapes may be given to the openings. In the construction shown in Fig. 14, the top openings are in the form of transverse slots 65 and side openings 75 are also provided in the rear portion 6.
Patent GB-958505-A (GB)
Title: Improvements in and relating to rotary fluid-conveying unions
IPC: F16L39/04
Filed: 1960-09-15
Abstract: 958,505. Rotary joints. W. MURRAY. Sept. 15, 1960, No. 31866/60. Addition to 858,507. Heading F2G. In the rotary union described in the parent Specification and comprising relatively rotatable hollow shaft 5 and casing member 1, the shaft being carried in bearings 6 and a rotary sliding contact seal consisting of a floating member 18 sealed to a bellows 19 fixed to the casing 1 or the shaft 5 the co-operating member 16 of the seal being carried by the shaft 5 or the casing 1, the floating member 18 provides a ring area a radially inwardly of the inner periphery of the bellows on which the fluid will exert axial pressure towards the member 16 to counterbalance tendency for the member 18 to break or reduce contact pressure with increase in fluid pressure.
Patent GB-860732-A (GB)
Title: Improvements relating to immersion heaters
Inventor: HACKETT LOUIS ALFRED
IPC: H05B3/06
Filed: 1958-10-09
Abstract: 860,732. Electric immersion heaters. A.E.I. HOTPOINT Ltd. Sept. 23, 1959 [Oct. 9, 1958], No, 32291/58. Class 39 (3). In an immersion heater of the kind comprising a sheathed wire heating element carried in a heater, the leader 4, Fig. 1 is attached to the rim of the wall 2 of a tank surrounding an aperture therein by means of a split washer 7 which is introduced into the tank through the aperture to lie against the inner surface of the rim and bolts or screwed studs 8 which are passed through aligned bars in header 4 and washer 7, an annular gasket 10 of deformable material being located between the leader and the rim of the aperture in the tank wall 2, the object is to enable the angular position of the heater element within the tank to be determined during insertion, the thermostat being located above the heating element. The gasket 10 is of plastic such as polymerised plastic, e.g. nylon or polythene or of silicone rubber. It has a shoulder 2 and one or more annular projections or corrugations 13 and 14 on both its faces. The washer 7 has a single split Fig. 2 (not shown) or diametrically opposite splits or more than two splits and is bent to introduce it through the tank aperture. The sheathed heater 5 and thermostat 6 are brazed welded or soldered to header 4 which is a brass cup pressing or casting. There may be more than one heating element; the heating element need not be but preferably is of U-shape. The bolts may have internal grooves having sealing rings of deformable material, Fig 3 (not shown). The aperture in the tank wall may be in a separate mounting flange to allow angular adjustments of the header in the tank before the parts are finally secured in place.
Patent GB-1152490-A (GB)
Title: Hand-Held Pump-Type Dispenser
Inventor: LEHMANN HERBERT GIBNER
IPC: B05B11/00
Filed: 1966-07-19
Abstract: 1,152,490. Reciprocating pumps. AEROSOL INVENTIONS & DEVELOPMENT S.A. July 19, 1966, No.32370/66. Heading F1A. An actuating assembly for a hand-actuated dispensing pump in a container 10, comprises a cap 18 mounted on container 10, an operating button 14 slidable in cap 18 and mounted on the pump operating rod 12, and a discharge spout comprising a portion 26 fixed to button 14 and a portion 30 slidable over portion 26 and having a rollar 32 which, in the retracted position of portion 30, prevents downward movement of button 14. The pump delivery passes through rod 12 and button passage 22 to spout 26, 30. Cap 18 has a fingerreceiving recess 20.
Patent GB-394368-A (GB)
Title: Improvements in or relating to cooking utensils
IPC: A47J27/13
Filed: 1931-11-24
Abstract: 394,368. Cooking-vessels. BEL L ' S HEAT APPLIANCES, Ltd. and SCOTT, C. L., 157, Queen Victoria Street, London. Nov. 24, 1931, No. 32547. [Class 66.] A fish kettle, ham cooker, or other vessel for cooking by steaming, which may be generally of oval shape, comprises a lower part 3, preferably of cast iron, having the undersurface of the circular base portion 2 machined flat for hot plate cooking, and a body part 5 of thinner metal, formed with a flange 11 to support a perforated grid or wire tray 9, and with a shoulder 7 to receive the edge of the lid 8. The body part may be attached to the lower portion by welding, riveting &c. The grid may also be permanently secured to the body part. The parts are all provided with pairs of handles 12, 13, 14.