baber/WOPTO huggingface dataset:
Patent GB-302470-A (GB)
Title: Improvements in tidal and other liquid level indicating or signalling apparatus
IPC: G01C13/00
Filed: 1927-11-17
Abstract: 302,470. Richmond, J. H., and Defrates, H. F. Nov. 17, 1927. Indicating, optical devices for.-The variation in level of tidal or other water is transmitbed by a float to a transparent slide, and a magnified indication is produced on a screen by an optical projector. A housing 5, Fig. 2, mounted on a platform 6 contains a pulley 14 over which passes a cord, A, B attached to a float and counterweight. A smaller pulley 13 on the same spindle operates a cord 11 passing over a fixed pulley 12 and carrying a transparent slide 10a. A source of light 8 and an optical projector 7 produce a magnified indication of the water level on a screen 9 which is visible at a considerable distance. Alternatively, the slide 10<a> may carry a rack engaging with a toothed wheel on the same spindle as the pulley 14. More than one screen 9 may be provided, illuminated by reflectors or by separate slides and projectors. In another alternative, Fig. 3, the projector may be omitted, and the magnified indications appear on a transparent screen 19<a> wound on an upper roller 20, and a float-operated roller 21. The housing is provided with a skylight 24 and for daylight working a mirror 25 is placed in the dotted position, while for night working the mirror 25 is raised and a source of light 26 is employed. Alternatively, the mirror 25 may remain in its day position, and be illuminated by lamps above it for night working.
Patent GB-648255-A (GB)
Title: Improvements in and relating to gummed tape distributors
IPC: B65H35/00
Filed: 1946-10-18
Abstract: 648,255. Tape dispensers. REID, Z. M. (formerly RAHT, Z. M.). Oct. 18, 1946, No. 31014. [Class 18] Tape from one or two rolls is withdrawn vertically through an opening 4 or 5 in a housing 1 enclosing the rolls, and engages the edges of the opening to prevent further withdrawal when the tape is extended horizontally to engage a severing device 6, 7. An intermediate member 31 of Z-section may be positioned between the walls 20, 21 of the opening so that withdrawal of the tape, in the vertical direction, raises the member 31, and extension of the tape, in the horizontal direction causes the bottom edge of the member 31 to press the tape against one of the walls 21 of the opening to prevent further withdrawal. A device may be associated with the housing for moistening an adhesive side of the tape and the housing may be provided with a fountain pen holder as well as a base 2 shaped to hold pencils and like articles.
Patent GB-667150-A (GB)
Title: Improvements in or relating to a mechanism for operating a slidable door
IPC: B66B13/06
Filed: 1949-12-05
Abstract: 667,150. Operating lift doors. ROLLINSON, E. W. (Guilbert, Inc.). Dec. 5, 1949. No. 31149/49. Class 78 (iii). [Also in Group XXV] The oppositely sliding leaves 10, 11 of a counterbalanced lift-shaft door are operated by means of a friction element 41 adapted to embrace a plate 55 fixed to the lower leaf, means being provided for projecting the friction element into engagement with the plate, reciprocating it to open and close the door and finally retracting it. The friction element, which is mounted on a frame 15 carried by the lift cage and is slidable along guide rails 17 by means of a motor-driven chain 22, comprises a pair of shoes, one of which is fixed to arms 36, 37 slidably mounted in the frame, while the other is fixed to arms 43, 44 pivotally mounted on brackets projecting from the arms 36, 37 and biassed towards the latter by means of springs 46, 47. The arms 36, 37 carry a roller 61 which co-operates with a cam guide 62 to project the friction shoes into the path of the plate at the commencement of the downward travel of the frame, a limit switch halting the frame when the, door is fully open. Subsequently, after the door has reached its fully open position, the frame continues its upward travel until the roller co-operates with a cam guide 63 to retract the friction shoes, the plate slipping between the latter during the final movement of the frame.
Patent GB-1468942-A (GB)
Title: Process and apparatus for electrolysis
IPC: C25B9/19
Filed: 1974-07-15
Abstract: 1468942 Electrolytic diaphragm cells HOOKER CHEMICALS & PLASTICS CORP 15 July 1974 [19 July 1973 15 Aug 1973]  31179/74 Heading C7B An electrolytic cell, for electrolyzing aqueous solutions of alkali metal halides e.g. NaCl to produce alkali metal hydroxides and halogen e.g. NaOH and Cl 2 , of HCl to produce H 2  and Cl 2 , of ammonium sulphate to produce persulphate and of borax to produce perborates, comprises a housing 1, an anode compartment 3 and a cathode compartment 7 containing anode 5 and cathode 9 and at least one buffer compartment 11 therebetween, at least the anode compartment and the adjacent buffer compartment being separated from each other by a permselective barrier 13, impervious to liquids and gases and comprising a hydrolyzed copolymer of a perfluorinated hydrocarbon, e.g. tetrafluoroethylene or hexafluoropropylene, and a fluorosulphonated perfluorovinyl ether, e.g. FSO 2 CF 2 CF 2 OCF(CF 3 )CF 2 OCF = CF 2  (as disclosed in Specification 1431733), in which some of the sulphonic acid groups may be replaced or modified, or sulphostyrenated perfluorinated ethylene propylene polymer. All compartments may be separated by the barrier. When at least two buffer compartments are used Figs. 2, 3 (not shown) at least the anode compartment and the adjacent buffer compartment are separated from each other by the permselective barrier and at least the cathode compartment and its adjacent buffer compartment may be separated by a porous diaphragm e.g. of asbestos or polypropylene. Dilute NaOH solution removed for example from the buffer compartment(s) may be introduced into the cathode compartment. The anode may be of RuO 2  coated Ti and the cathode may be of steel.
Patent GB-438913-A (GB)
Title: Improvements in or relating to thimble-tube boilers
IPC: F22B13/02
Filed: 1934-10-31
Abstract: 438,913. Water-tube steam boilers or water heaters. ELDERTON, A. J., 133, Shepherds Lane, Dartford, Kent. Oct. 31, 1934, No. 31222. [Class 123 (ii)] The furnace C of a vertical boiler has access to an axially arranged secondary chamber D, containing thimble tubes F fitted radially into the marginal plate of the chamber, through a water-cooled neck or restriction E which need not be axially disposed. The space between the inner periphery of the tube ends may be partially closed by a deflector J or by straight or curved water tubes. A superheater, feedwater heater, or air heater may be located between the tubes and an outlet flue H. The thimble and curved tubes may be of varying lengths and diameters. Hot waste gases may be admitted to the primary chamber C. Secondary air may be admitted to chamber D through a tube K when the boiler is fuel-fired and is working at a high rate of evaporation. Access to the chamber for soot-blowing is provided by a tube L.
Patent GB-261203-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: B41N1/24
Filed: 1925-12-10
Abstract: 261,203. Horii, S. Dec. 10, 1925. Pulp, adding special substances to; paper, treating with special materials.-A coating-composition for stencil sheets for use in duplicating is added to the paper pulp in a mixing hollander. The composition comprises esters of poly saccharides, such as starch acetate, cellulose acetate, cellulose nitrate, or cellulose xanthrate, in suitable solvents, together with napthenic acids and, if desired, fatty oils, fats, or waxes, such as castor oil, Japan wax, or ceresin. Proportions of a suitable composition are given including pyroxyline, naphthenic acids, Japan wax, methanol, acetone, and amyl alcohol.
Patent GB-1080890-A (GB)
Title: Sample measuring and diluting method and apparatus
IPC: G01N1/38
Filed: 1966-07-12
Abstract: 1,080,890. Sampling liquids. GILFORD INSTRUMENT LABORATORIES Inc. July 12, 1966 [July 15, 1965], No. 31327/66. Heading B8N. [Also in Division B1] A method of measuring and diluting a predetermined quantity of a sample comprises entraining the sample in the bore of a capillary tube or pipette 10 of known cross-sectional area and severing the tube into at least two segments, one of the segments being a remanent segment of predetermined length entrapping a precise quantity of the sample. The tube 10 is provided with scores 30, 32 and, in use, is dipped into a container of the liquid, such as blood, to be sampled, a suction tube 14 being connected to the sample tube in order to draw a sample therein. The tube is then severed at the scores 30, 32, the portion (34, Fig. 2) containing the measured sample being dropped into a vessel containing a reagent and the remaining segments discarded. In the apparatus shown in Fig. 5, the end tube 88 of a supply of tubes 86 is clamped to a rotatable table 80 and then carried around to a station 82 wherein the tube is connected to a suction device and a conveyer 98 is raised so as to bring the liquid to be sampled in a container 96 into contact with the sample tube. When the liquid reaches a certain level in the tube as determined by photo-electric cells 102, 104, the conveyer is lowered and the table rotated so that the tube then passes by scoring rollers 106 and a severing station 84. The portion 94 containing the sample is then carried by the table to a station 84 where the portion is dropped into a reagent in a container 118 carried on a conveyer 120.
Patent GB-364710-A (GB)
Title: Improvements in electric cables
IPC: H01B7/02
Filed: 1930-10-20
Abstract: 364,710. Cables. BRITISH INSULATED CABLES, Ltd. and PACKER, J. L., Prescot, Lancashire. Oct. 20,1930, No. 31387. [Class 36.] In order to reduce free compound to a minimum in the insulating layers of a cable such as a mine shaft cable where hydrostatic pressure due to free compound may burst the lead sheath, the conductor of the cable is wound with layers or wormings of preimpregnated paper having interspersed layers or wormings of dried but unimpregnated paper.
Patent GB-393482-A (GB)
Title: Improvements in or relating to flying machines
IPC: B64C39/00
Filed: 1932-11-08
Abstract: 393,482. Propelling and supporting aircraft. PROSDOCIMI, G. A., 11, Via San Carlo, Bologna, Italy. Nov. 8, 1932, No. 31522. [Class 4.] A machine is supported and propelled by louvered wings I .. IV rotated in opposite directions about a longitudinal axis and having flexible rear edges. A fixed supporting plane 37 is provided having valves 3 which open when the machine is ascending. The wings I .. IV can be clamped in a horizontal position for gliding. The wings comprise vanes 3 pivoted about rods extending at right-angles to frames 1. The vanes are linked together by rods 6 having rollers 5 engaging the edge of a non-rotary cam 4 within which a sleeve 13 carrying the frame 1 rotates. The cams on each of the four wings can be moved axially by electromagnets out of engagement with the rollers 5 when the wings are to be clamped in the horizontal position so as to ensure all of the vanes being closed. The planes I, IV are driven in opposite directions by shafts extending through fixed sleeves, and the planes II, III are driven from the sleeves carrying the frames of the planes I, IV by sun and planet bevel gear with the planet pinions on fixed spiders.
Patent GB-1399915-A (GB)
Title: Plaster compositions
IPC: C04B26/28
Filed: 1972-07-05
Abstract: 1399915 Plaster or spackle compound INTERNATIONAL COATING PRODUCTS KB 5 July 1972 31543/72 Heading C1H A plastic or spackle compound comprises water, a water-insoluble inorganic filler of varying grain size, a fine granular mineral filler which may also constitute the insoluble inorganic filler or a part thereof, an organic binder and resilient fibres of a material which does not dissolve substantially in water, does not absorb water and does not swell in the presence of water. The fibres may be glass, polyacrylate, polyamide, polyacrylonitrile, polyester, polyurethane, metal or alloy (e.g. brass, aluminium-bronze or stainless steel). Cellulose keratin or asbestos fibres may also be present. The organic binder may be a mixture of watersoluble cellulose derivatives and a waterinsoluble organic mixture containing an oil/ water or water/oil emulsion. The waterinsoluble inorganic filler may be sand, crushed marble, crushed glass, crushed gypsum and/or crushed pumice. The fine granular mineral filler may be talcum, kaolin, bentonite, whiting, kieselguhr and/or slaked lime. Exemplified compositions comprise by weight 20-27À4% water, 0À2-1À0% water-soluble cellulose derivative, 0À5-8% emulsion which contains a waterinsoluble binder (50%), 40-55% granular mineral filler, 0À4% cellulose fibres and 0À05- 0À4% resilient fibres.
Patent GB-844884-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: WOOD WILLIAM GEORGE EDGAR
IPC: G21C5/04
Filed: 1957-10-09
Abstract: 844,884. Nuclear reactors. A.E.I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. Oct. 3, 1958 [Oct. 9, 1957], No. 31575/57. Drawings to Specification. Class 39(4). The graphite core of a reactor is formed in zones which have different amounts of Wigner growth compensation in accordance with the zone neutron flux and temperature. The core is formed of columns built from blocks, and the horizontal Wigner gaps between blocks are largest in the zones having the highest neutron density and lowest temperature. The latter are near the core base while the lower Wigner growth and compensation is provided in the upper zones. Those columns which provide compensation are formed of blocks with the grain direction vertical and separated by plates, at their upper and lower surfaces, having their grain directions horizontal and which engage the corresponding plates of adjacent columns. The overall Wigner growth in core horizontal dimensions increases uniformly towards the base, thus preventing misalignment of the fuel rod channels.
Patent GB-1113203-A (GB)
Title: Fabrication of image display screens
IPC: H01J29/22
Filed: 1965-07-23
Abstract: 1,113,203. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS Inc. 23 July, 1965 [23 July, 1964 (2)], No. 31580/65. Heading H1D. [Also in Division G2] A cathodoluminescent screen having phosphor particles adhered thereto in a predetermined pattern, e.g. a colour television screen, is made by forming on the screen a uniform layer of the phosphor particles carried in or on a resist layer of a clear photo-sensitized polymeric substance containing one or more alkane diols as photopolymerization accelerator, drying the resist layer and photographically exposing it through a negative to form in the layer a photopolymerized image consisting of phosphor particles bonded to the screen by the hardened resist in the said predetermined pattern, and developing the image by removing from the screen, e.g. by washing, the unexposed, unpolymerized resist material and the phosphor particles associated with it. The resist composition may also contain a trihydric alcohol to retard polymerization of the resist material in the unexposed areas of the resist. The process may be repeated and a cathode-ray screen having green, blue and red phosphors may be built up. The resist material may comprise photographic gelatine or polyvinyl alcohol sensitized with ammonium, potassium or sodium dichromate. The alkane diol may be 1:2- ethanediol, 1: 3 - propanediol, 1: 3 - and 1: 4- butanediol, 1: 4 - and 1: 5 - pentanediol and 1: 6-hexanediol, and the trihydric alcohol used as retarder may be glycerol and/or 1:2:4- butanetriol. The phosphors may be sulphides, oxides, tungstates, aluminates, borates,. selenides or silicates of zinc, cadmium, beryllium, magnesium, manganese, calcium or strontium and may be activated by silver, copper and manganese.
Patent GB-946814-A (GB)
Title: Method of and device for detonating rim-fire cartridges
IPC: B25C1/16
Filed: 1961-09-04
Abstract: 946,814. Firing rim-fire cartridges. ANSTALT FUR MONTAGE-TECHNIK. Sept. 4, 1961 [Sept. 7, 1960], No. 31645/61. Heading F3C. A rim-fire cartridge is detonated by causing deformation of that annular front surface of the base rim which faces the cartridge case opening and which bears against a projection or projections provided on an annular surface of the cartridge housing. In one form, an abutment 17, Fig. 2, engages the head of a cartridge located in a recess 12 in the end face 6 of the cartridge housing 1, the end face 6 being formed with one or more diametric grooves 9 so as to provide lands 11, Fig. 3, acting as projections or striker pins and engaging the annular under surface of the base rim of the cartridge for detonation purposes. Eight such projections or projections of other form may be provided, Figs. 4, 5 and 6 (not shown).
Patent GB-394228-A (GB)
Title: Improvements in or relating to fuel injection apparatus for internal combustion engines
IPC: F02M59/18
Filed: 1932-11-10
Abstract: 394,228. Fuel-injection pumps. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Nov. 10, 1932, No. 31783. Convention date, Nov. 16, 1931. [Class 102 (i).] In fuel - injection pumps of the kind ir which there is a loaded counter - piston and main piston coacting with a fuel-injectior valve, there are pro vided a slide valve controlling the opening of the delivery port to the delivery pipe and a fuel valve controlling the commence. ment of injection tc the engine. The main piston may be arranged to act as the slide valve. The main piston 6 is actuated by a cam 9 and is provided with an axial bore 11, circumferential groove 12 and an upper face which is cut in V-form 21. Above the main piston is a counter-piston 13 under spring restraint 15, the spring being adjustable by means of a setscrew 14. The inlet pipe 4 communicates with the cylinder through a port 5, the time at which the piston 6 uncovers this port being determined by a rotational setting of the piston 6 through the gearing 24. Movement of the piston past the outlet port 17 results in delivery of fuel to the pipe 2 when the injection valve 20 lifts and fuel is supplied to the engine until the pressure in the pipe line drops sufficiently for the spring 19 to exert a closing action. As a result of a wave impulse along the pipe line, the pressure on the valve is greater than the pump delivery pressure. Specification 375,151 is referred to.
Patent GB-1115941-A (GB)
Title: Process for separating titanium tetrachloride from gases produced by chlorination oftitaniferous materials
IPC: C22B34/12
Filed: 1965-07-26
Abstract: Titanium tetrachloride is separated from gases resulting from the chlorination of titaniferous materials by passing the gases into a solution of hydrochloric or sulphuric acid to form, respectively, hexachlorotitanic acid or titanyl sulphate.  The temperature at which the gas enters the acid is preferably 140-250 DEG  C. and the acid solution is preferably maintained at 5-50 DEG  C.  Solutions of 20-33% HCl and 20-98% H2SO4 are preferably used.  The process may be applied to the separation of remaining titanium tetrachloride from waste gases after the bulk has been separated by condensation.
Patent GB-211569-A (GB)
Title: An improved holder or handle for mops, pads and like cleaning devices
IPC: A47L13/46
Filed: 1922-11-21
Abstract: 211,569. Tudor, I. Nov. 21, 1922. Holders with clamping-devices for mops and the like; fixing by chuck - grip sockets.- A handle with means for gripping mops, pads and like cleaning devices 12 comprises pairs of hooked jaws 10 slidable in a handle 5, each pair being formed from a single piece of wire bent to form the loop or shank portion 11. In Fig. 3, the shank portions 16 of the jaws project from the upper end of the handle 13 which is formed with the bore 14 conical at 15 for contracting the jaws when the shank portions are drawn up. The loop shank portions 11, or 16 cross each other at the upper ends. The loops 11 may be attached to a sliding part 8, Fig. 1, spring-pressed upwardly in the part 5 of the handle by a spring 9, so as to contract the hooked jaws 10 when released.
Patent GB-1014762-A (GB)
Title: Improvements in and relating to apparatus for testing surface quality of material
Inventor: BURNS CHARLES
IPC: G01N21/89
Filed: 1961-09-05
Abstract: 1,014,762. Optical apparatus. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 24, 1962 [Sept. 5, 1961], No. 31846/61., Heading G2J. Apparatus for testing the surface quality of moving elongate material comprises means for illuminating the surface to be tested, means for receiving light from the illuminating means by reflection from the surface to form an image of the surface, means for moving the image-forming means to neutralize optically image movement, and means for storing representations of the image. As described, the apparatus is designed for observing by non-specular reflection imperfections in bright tinplate, defects being visible as light patches on a dark ground. Typically an arrangement may be as in Fig. 3, the strip T illuminated by light source S is observed by a television camera C which is oscillated as indicated by the arrow, being shielded by mask M against specular reflection. More exact image arrest may be obtained by the Fig. 5 system. Alternatively optical compensators such as a rotating plane mirror or polygonal mirror may be employed receiving light from the strip through a slit extending across its width. Such a system is shown in Fig. 13 wherein light from the strip T is reflected by a fixed inclined mirror O 1  on to the segments SM of a mirror drum D 1  and an arrested image is relayed by them through a right angled prism P 1 . to the television camera C 1 . With a closed end drum as shown two cameras may be employed while with a drum open at both ends four cameras may be used. Provision may be made for (1) observing at different angles of off-specular reflection according to the kind of defect sought e.g. "wood grain" effects; (2) observing systematic variations due to tilt of the strip or to irregularities in the tinplate mill feeding rolls; (3) varying degrees of sampling up to 100%, e.g. by using one or more cameras as in Fig. 3, one being operative during the flyback of the other; (4) using long persistence monitor tubes so that several frames are superposed; and (5) making a cinÚ film of the tube display using short persistence display tubes.
Patent GB-1330816-A (GB)
Title: Ball assembly of an indexing device for a machine tool
IPC: F16D71/04
Filed: 1972-07-07
Abstract: 1330816 Ball assembly of an indexing device SHINPO INDUSTRIAL CO Ltd 7 July 1972 [8 July 1971] 31888/72 Heading B3B A ball assembly for an indexing device wherein steel balls 5 are used as indexing elements, comprising a ring member 3 of one hardness, a ring member 4 of another lower hardness and a row of balls force-fitted between said ring members, basic surfaces 6, 7 for determining the accurate positioning of the balls being provided on the first mentioned ring member, and indentations 12 due to said force fitting of the balls being created on the second mentioned ring member of lower hardness only. The ring members can be assembled by means of screws 10 or an hydraulic press. In use, one ball assembly could be fixed to an indexing table with a second ball assembly fixed to a bed. Preferably, the hardness of ring member 3 is RC60 and that of ring member 4 RC22.
Patent GB-967765-A (GB)
Title: Improvements in hand tools
IPC: B25B23/18
Filed: 1962-08-20
Abstract: 967,765. Lamps combined with hand tools. LO HUNG HING. Aug. 20, 1962, No. 31914/62. Heading F4R. [Also in Division B4] A hand tool comprises a hollow handle 1 formed of translucent material and having a blind bore therein for housing an electric bulb 3a and battery 4, the end of the handle remote from the screw cap 2 which closes the end of the aforesaid bore being formed with a blind opening 8 which receives a sleeve 9 for mounting a detachable tool. The sleeve is embedded in the handle and has two, three or four radiallyextending grooves which co-operate with ribs provided on the shanks of tools which are plugged selectively into the sleeve.