baber/WOPTO huggingface dataset:
Patent GB-674474-A (GB)
Title: Improvements in or relating to view-finders for photographic cameras
IPC: G03B13/02
Filed: 1950-06-07
Abstract: 674,474. View-finders for photographic cameras. PAILLARD SOC. ANON. June 7, 1950 [July 27, 1949], No. 14198/50. Class 98 (i). A view-finder having a tubular body 1 with an eye-piece 3 at one end thereof, has a window 11 in its wall opposite which moves at least one member 8 bearing signs, the member 8 being opaque except at the sign-bearing portions, and a reflecting surface 13 mounted inside the body opposite the window 11 so as to form an image of the sign opposite the window outside the field of view as viewed through the eyepiece 3. Member 8 may be a disc pivoted to the wall of the view-finder, and fast with a gear-wheel 7 engaging a rack 5 slidable on the wall and carrying a lens 4 co-operating with an objective 2 and the eyepiece 3 to vary the field of view. The edge of the disc 8 projects through a slot in the body 1 so that it can be turned by a finger. The signs on disc 8 may indicate the focal length of an objective having the same field of view as the view-finder at a particular setting, or may indicate other data. The signs may be formed in two layers of paint on a transparent disc, or as raised characters on a transparent disc, the remainder of which is painted, or as stencils formed in an opaque layer applied to a transparent disc, or an apertured opaque disc, or in an opaque disc. The signs can thus be read through window 11 from the outside of the view-finder. Alternatively, the sign-bearing member may be carried by the rack 7, actuated by a gear-wheel, one edge of which projects through a slot in the body 1.
Patent GB-910007-A (GB)
Title: Improvements in or relating to electric thermostats
Inventor: MOSS ERIC TOM
IPC: G01K1/14
Filed: 1960-04-22
Abstract: 910,007. Mercury switches. DAIRY SUPPLY CO. Ltd. May 23, 1961 [April 22, 1960], No. 14225/60. Class 38 (5). [Also in Group XXXVI] A thermostat unit comprises a flexible tube 1 containing at one end a thermostat 2, e.g. of the mercury contact type, and carrying at its other end a plug 3 (see Group XXXVI) connected to the thermostat by leads 4 in the tube 1, the latter being received in a rigid tube 5. The tube 5 is secured to a carrier 8 in which is threaded a gland nut 9 arranged to compress a gland ring 7. The tube 5 may be adjustably mounted in apparatus to be controlled by passing it through resilient ring 20 in a block 19, the ring 20 being compressed to grip the tube 5 by a ring 22 and pressure plate 21, Fig. 2.
Patent GB-437432-A (GB)
Title: Improvements in and relating to apparatus for imparting reciprocatory movement to pump-pistons and the like
IPC: F04B47/02
Filed: 1935-05-16
Abstract: 437,432. Reciprocating pumps. WAINFORD, R. H., 22, Woodlands Terrace, Darlington. May 16, 1935, No. 14292. [Class 102 (i)] A pump plunger 4 is attached to a cylindrical crosshead 66 containing lubricant. A connecting rod 81 connects the crank 64 to a rocker arm 79 pivoted at 78 to the crosshead. A beam 75 is also pivoted at 78 and at the other end has a rod 72 attached. This rod is guided in a bush 73 pivoted to the crosshead and has a tapered piston 71 attached to it which enters a tapered cylinder 70. The plunger 4 is actuated on its downward stroke by the weight of the crosshead and the length of the stroke is determined by the pressure on the plunger. The upstroke is effected by the crank through engagement of the levers 75, 79. The piston 71 provides a cushioning effect when the crank takes up the drive.
Patent GB-1300577-A (GB)
Title: Improvements in or relating to carburetters
Inventor: LAWRENCE GEOFFREY LLOYD
IPC: A47J42/26
Filed: 1970-03-24
Abstract: 1300577 Spray carburetters; heating intake air ZENITH CARBURETTER CO Ltd 10 July 1970 [22 July 1969 24 March 1970] 36844/69 and 14302/70 Heading F1B In a constant suction type carburetter having the profiled needle 20 movable with the air valve 15 to control the effective area of the jet orifice 33, two or more passage 36, Fig.3, are provided in the jet 18, to admit air to the jet orifice. The air is supplied to the passages 36 through a tube 39 or a static head pick-up. The needle 20 is biased to engage the orifice wall on the downstream side with respect to induction passage air flow and the axial position of the jet 18 is adjustable by a screw 28. The flow of unheated air and heated air, e.g. from the region of an engine exhaust manifold, to the carburetter (47), Fig.4 (not shown), may be controlled by a flap valve (55) at the junction between unheated and heated air ducts (51, 52 and 54) upstream of the air intake filter (49). The flap valve is variably biased by a bi-metal coil (56) to a position closing the unheated air inlet (52).
Patent GB-865270-A (GB)
Title: Improvements in or relating to the production of compounds of trivalent uranium
IPC: C01G43/00
Filed: 1959-04-27
Abstract: Trivalent uranium compounds are obtained by dissolving a compound of uranium of valency above 3 in an acidic aqueous solution of hydrogen ion concentration from 0.5 to 2.0 molar to form a solution of uranium concentration less than 0.2 molar, and reducing the resulting uranium compound in the solution by means of zinc amalgam in the absence of oxygen and anions which form complexes with tetravalent uranium. Uranium trifluoride is prepared by adding the solution resulting from the reduction to an aqueous solution of a soluble fluoride.  In examples uranyl chloride in hydrochloric acid is reduced and reacted with ammonium fluoride and with sodium fluoride; uranyl acetate in perchloric acid solutions and in hydrochloric acid solutions is reduced; and ammonium diuranate and uranium tritaoctoxide in hydrochloric acid solutions are reduced.  Other starting materials mentioned are uranium dioxide and trioxide, and sodium and potassium uranates.
Patent GB-965123-A (GB)
Title: Process for the production of fluid compositions containing silica
Inventor: PRESTON WILLIAM JOHN
IPC: C01B33/145
Filed: 1962-04-13
Abstract: A fluid composition containing silica colloidally dispersed in an organic liquid is produced by removing water by means of a film evaporator from an emulsion of a silica organosol containing up to 50% by weight of silica) and an organic liquid immiscible with the aquasol. The organic liquid may be a textile oil, a mineral oil, or an oil used in paints, as described in the parent Specification.  The emulsion of the silica aquasol and the organic liquid is preferably obtained by mixing the aquasol with good agitation with the organic liquid containing an emulsifying agent of the oil-soluble type. The emulsifying agent may be non-ionic, e.g. an organic ester, or a condensation product of ethylene oxide with a carboxylic acid, an alcohol, a phenol, an amine, or a mercaptan, or anionic e.g. a soap or petroleum sulphonate.  The evaporator may be a wiped-film evaporator, a falling film evaporator, or preferably a climbing film evaporator.  The climbing film evaporator may employ a tube having a bore 3/8 to 1 1/2 inches, and a length between 80 and 200 X the bore. The tube may be heated by steam or by electrical heating.  A tube having an annular cross-section may be achieved by placing a rod centrally inside the tube.  The operating pressure is preferably chosen so that the temperature of the emulsion does not rise above 80-85 DEG  C. before all the water has been evaporated. Examples are given.ALSO:A film evaporator, e.g. a wiped-film evaporator, a falling-film evaporator or a climbing film evaporator, is used to evaporate water from an emulsion of a silica aquasol containing up to 50% by weight of silica and an organic liquid, e.g. a mineral oil, immiscible with the aquasol.  In an example a climbing film evaporator consists of a vertically mounted 11 feet 6 inches long, 3/4 inch nominal bore mild steel tube provided with a heating jacket for 10 feet of its length.  The upper end of the tube communicates with a glass separator, a glass condenser and a vacuum pump.  In another example, a round steel rod 3/8 inch diameter is suspended centrally inside the evaporator.
Patent GB-1199505-A (GB)
Title: Lubricant Containing Colloidal Asbestos
Inventor: MORWAY ARNOLD JESSE
Filed: 1968-03-26
Abstract: 1,199,505. Greases. ESSO RESEARCH & ENG. CO. 26 March, 1968 [3 April, 1967; 20 April, 1967; 17 Jan., 1968], No. 14448/68. Heading C5F. Greases comprise a lubricating oil and 1-40 wt. per cent of chrysotile asbestos having particle outer diameters of 1-80 millimicrons and particle lengths of 2000-30,000 millimicrons. The grease may also contain a C 12- C 30  fatty acid or a dimer or trimer thereof, e.g. 12- hydroxystearic acid or a trimer of linoleic acid, an alkali metal salt of a C 8 -C 30  fatty acid or a mixture thereof with an alkaline earth metal salt, alkali and alkaline earth metal salts of C 6 -C 12  dicarboxylic acids, tricarboxylic acids of formula R(COOH) 3  where R is C 18- C 60  hydrocarbon radical, alkaline earth metal salts of C 2- C 6  and C 7- C 30  fatty acids, phenylalpha-naphthylamine, sorbitan mono-oleate, phosphosulphurized polyolefins and salts thereof, sulphurized sperm oil, lead naphthenate, polyisobutenyl succinic anhydride and salts and polyamine reaction products thereof and alkali metal halides, carbonates and phosphates. The oil may be mineral or synthetic, e.g. polyphenyl ethers, silicones, di-esters, complex esters, halocarbon oils, alkyl silicates, sulphate esters, mercaptals, formals and polyglycols.
Patent GB-554974-A (GB)
Title: An improved process for the isomerisation of paraffin hydrocarbons
IPC: C07C5/27
Filed: 1941-11-12
Abstract: 554,974. Branched chain hydrocarbons. STANDARD OIL DEVELOPMENT CO. Nov. 12,1941, No. 14551. Convention date, Nov. 30, 1940. [Class 2 (iii)] Paraffinic hydrocarbons containing, at least four carbon atoms in the molecule are isomerised to branched chain hydrocarbons by heating in the presence of hydrogen and a clay which has been treated with a hydrogen halide and which has been impregnated with iron, cobalt or nickel. The process may be continuous and pressure may be applied. Temperatures of 450-900‹F. are suitable. In examples npentane and n-heptane are isomerised by treatment in an autoclave in the presence of hydrogen and a catalyst prepared by treating "Super Filtrol" (Registered Trade Mark) with hydrogenfluoride, impregnating with nickel nitrate and reducing. The use of bentonite, montmorillonite and marsil is mentioned. Field butanes, straight run naphthas and refinery C 4 -C 5 -cuts may be used as well as the substantially pure normal paraffins.
Patent GB-634287-A (GB)
Title: Plate clutches
IPC: F16D13/64
Filed: 1947-06-23
Abstract: 634,287. Clutches. STANLEY, G. E. June 23, 1947, Nos. 14568/48 (divided out of 634,409) and 32237/47. [Class 80 (ii)] A clutch disc having a plurality of circumferential ly spaced flexible sectors, some of which have portions kinked out of the plane of the disc has friction linings secured to the opposite faces of the sectors by flexible rivets. The arms 14 of a spider secured to a hub 12 support arcuate sectors 16 having portions 17 kinked in the same direction. Two friction linings 21, 23 are riveted to the sectors by cork rivets 20, 25 having their heads in clearing holes in one of the linings, such that lining 21 is secured by the rivets 20 and lining 23 by the rivets 25. Specification 409,346 is referred to.
Patent GB-362325-A (GB)
Title: Advertising machine
IPC: G09F11/29
Filed: 1931-05-16
Abstract: 362,325. Changing signs. SHAH, S. V., 134, Mortimer Road, Kensal Rise, London. May 16, 1931, No. 14572. [Class 3 (i).] In display bands which are wound intermittently on and off two rollers with automatic lighting and extinguishing of lamps. the actuating means comprising lateral extensions at spaced intervals on the band, the extensions rotate a star wheel 9 which controls the power and lighting switch. The extensions are attached at their ends to two steel ribbons, and may act as - supports for separate sections forming the band. The switch barrel 19 is rotated by a toothed wheel engaged by a segment 17 which is rocked by pins 18, 21 on the plunger 15 of a dashpot 16, the plunger being raised by a spring retracted incline 13 forced outward by the star wheel 9. The dashpot timing is adjustable by obstruction of its plunger orifices, or by positioning a counterweight on the extension of the segment 17. The direction of winding is reversed at any point by providing on each band extension an enlargement which can be slid laterally to engage a finger 33 carrying a toothed segment which rotates a switch barrel 36 reversing the current through the motor. The motor drive is to the middle element of a dog clutch which transfers the direct drive to the roller which is winding on. A friction pad may bear on each roller 24, 25 to keep the band taut. A reflector may be placed behind the lamps and a translucent mirror in front of the band, or the band may be illuminated from the front. A second motor may be energized simultaneously with coloured lamps mounted on a frame rotated by the motor. A clock on the casing may control a time switch.
Patent GB-1037945-A (GB)
Title: Pharmaceutical compositions for reducing blood pressure and/or pulse rate
IPC: A61K31/475
Filed: 1963-04-11
Abstract: Compositions for oral administration for reducing blood pressure and/or pulse rate comprise L-tryptophan, reserpine and a non-toxic phenothiazine compound, e.g. trifluoperazine, chlorpromazine, thioridazine hydrochloride, fluphenazine dihydrochloride and promethazine hydrochloride.  The compositions may also include (a) a monamine oxidase inhibitor, e.g. isocarboxazid, iproniazid, nialamid, phenelzine and b -phenyl isopropyl hydrazine hydrochloride; (b) pyridoxine (including pyridoxal, pyridoxamine and the hydrochloride salts and phosphate esters of these compounds); (c) a source of magnesium cations, e.g. a magnesium compound such as the chloride, oxide, sulphate, formate, acetate, citrate, phosphate, bromide, iodide or trisilicate.  The compositions may be administered in the form of tablets, capsules, powders or liquids.  Reference has been directed by the Comptroller to Specification 737,310.
Patent GB-1146142-A (GB)
Title: Electrophotography
IPC: G03G5/06
Filed: 1966-04-01
Abstract: 1,146,142. Electrophotography. RANK XEROX Ltd. 1 April, 1966 [2 April, 1965], No. 14612/66. Heading H1K. An electrophotographic material comprises a substituted 2-phenylazo-4-alkoxy- 1 -naphthol of formula wherein X is alkoxy, and Y is alkyl, alkoxy, carboxy, nitro, cyano, halo or sulphonamide and n is 1 to 4. In the examples the substituents are Y = p-tolyl, p-ethylphenyl, m-tolyl, p-carboxyphenyl, m-xylyl and mesityl and X = i-propoxy, methoxy, ethoxy and npropoxy. The photosensitive material may be mixed with polyvinyl carbazole, polyethylmethacrylate, chlorinated polyphenyl, and P.V.C. as binders whilst sensitizing dyestuffs as specified in Specification 1,146,019 may also be used. Baryta paper, tin oxide coated glass or aluminium may be used as a support. A layer of P.V.C. may be applied to the photoconductive layer. The image formed on the phot6conductive layer may be developed electrophoretically, using toner particles or by heat deformation to give a relief or frost image. Mixtures of the naphthols may be used.
Patent GB-1179631-A (GB)
Title: A Sandwich Structure and Method of Making It
IPC: B29C70/00
Filed: 1967-03-30
Abstract: 1,179,631. Foamed plastics laminate. W. R. GRACE & CO. 30 March, 1967 [13 May, 1966], No. 14612/67. Heading B5N. A sandwich structure comprises two sheets secured by adhesive to a polystyrene foam core; at least one of the sheets comprising a thermoplastic resin composition having therein a fibrous filler consisting of asbestos and/or glass fibres, organic fibres, or a mixture of asbestos and cellulosic fibres, the fibres being less than 2 inches long and comprising from 20% to 60% by weight of the sheet. The outer sheets may both be of the filled thermoplastic resin composition or one of them may be of plywood, metal, wallboard, ceramics, fibreglass or plastics. The foam core is preferably produced from preexpanded particles, i.e. particles formed by mixing particles of polystyrene and a blowing agent and partially evaporating the blowing agent by heat, e.g. hot water, steam or infrared, the core being produced by heating the preexpanded particles together in a mould, or between continuous belts, to form a preformed core, which may have tongue and groove or strip lap edges, or by expanding the particles between the outer adhesive-coated sheets either in a mould, or continuously, heat being applied to effect the foaming in situ e.g. dielectric heating. The foam may include fire-resistant additives e.g. antimony oxide or alkyl acid phosphate, fillers, e.g. clay, calcium sulphate or ammonium phosphate, dyes, and glass, asbestos or synthetic fibres. The outer sheet comprising the thermoplastic composition is preferably rigid and the thermoplastic is preferably PVC although it may be a polymer of one or more of styrene, methylmethacrylate, acrylonitrile, and vinyl chloride, or a copolymer or terpolymer e.g. of styrene and butadiene, or A.B.S., or a mixture of polystyrene with a styrene/butadiene copolymer or with a styrene/maleate ester copolymer. The fibres present in the outer sheet may be of glass, asbestos, wood, paper, cellulosic material, or textile fibres of vegetable or animal origin e.g. leather. The sheet may be produced from a slurry of the fibres and a dispersion of plastics particles by mixing these and using a paper-making machine to produce sheets of filled resin. The sheet may comprise one or more of these sheets welded by heat and pressure. Alternative layers of a dough-like material composed of a plastisol and the fibres are laid up on a calender comprising hot and cold bowls. The layers may be reheated and pressed hydraulically or between hot and cold rolls to consolidate them into a sheet. The sandwich structure is formed by sticking the sheets to the core by an epoxy resin adhesive or by an adhesive set by hot air, or is formed by continuously producing foam between two continuous sheets, or, as above, by expanding the foam in situ between the sheets. The outer sheets may be transparent, weather-resistant or fire-resistant. The sandwich structures may be used as building panels.
Patent GB-271653-A (GB)
Title: Improvements in or connected with wire and other mattresses and the like
IPC: A47C23/28
Filed: 1926-06-10
Abstract: 271,653. Wicksteed, A. June 10, 1926. Mattresses.-A bolt and nut tensioning device is mounted on the end faces of the fixed and moving bars of a wire mattress. The moving bar carries a plate with a threaded tubular socket 14 and flanged extensions 15, 16, while on the fixed bar is mounted an angle plate 4 having a recessed portion to accommodate and retain the tensioning bolt 10.
Patent GB-276459-A (GB)
Title: Improvements in or relating to means for packing and displaying yarns, cards and like goods
IPC: B65D85/04
Filed: 1926-06-10
Abstract: 276,459. Storey, A. A. June 10, 1926. Cards for displaying.-To facilitate the display and packing in boxes &c. of articles such as cards of mending yarn, opposed pairs of inclined or arcuate slits, &c. are provided on the carrier cards so that the display cards can be mounted on the carrier cards preferably with an overlap so that a portion of each yarn sample &c. is exposed to view. The carrier card 1, Fig. 1, has terminal strips 4 or loops &c. to facilitate handling and is provided with opposed sets of slits 2 &c. which are spaced apart so that the projectings parts of the sample cards 3, Fig. 2, can be inserted therein, the cards overlapping but displaying a portion of each yarn sample.
Patent GB-218083-A (GB)
Title: Improvements in letter-sheets & letter-cards
IPC: B42D15/08
Filed: 1923-06-05
Abstract: 218,083. Armstrong, J. J. V., (Shurick, E. P., and Belsinger, S. P.). June 5, 1923. Letter - sheets. - A letter-sheet or lettercard is formed from a blank 1 having integral extensions 5, 9 along two edges, of less length than the edges, and folding inwards along the edges so that the extension 9 lies under the extension 5, covering a portion 4 of the blank tinted or otherwise made distinctive, or isolated by rules lines or spaces from the main portion, and bearing advertising or like matter. The extension 9 provides a reply postcard. Additional leaves 6 may be attached to the extension 5 to form a booklet. The extensions 5, 9 and the leaves 6 may be shaped in the outline of the article advertised. The portion 4 may be divided from the main portion of the blank by perforations, so that it can be detached.
Patent GB-860480-A (GB)
Title: Improvements in or relating to self-propelled combine harvesters
IPC: A01D41/02
Filed: 1959-04-30
Abstract: 860,480. Combine harvesters. CLAAS, H. April 30, 1959 [May 12, 1958], No. 14701/59. Class 6(3). In a self-propelled combine-harvester, the driving motor 14 is mounted above one of the front driving-wheels 4 and is supported on the front axle 2 so as to form a counterweight for a filling platform 13 on the other side of the harvester body. The motor is mounted on a horizontal framework 22 carried by a strut 24 and by a leg 25 which is supported by the wheel 4. The wheels 4 are driven by a belt 15 and gearbox 18, and a drive is also taken to the beater 8 and other moving parts of the threshing mechanism.
Patent GB-273080-A (GB)
Title: Improvements in galvanic batteries
IPC: H01M6/06
Filed: 1926-06-14
Abstract: 273,080. Lloyd, A. Ford-. June 14. 1926. Electrodes, positioning.-A cell particularly of the Leclanche type is provided with discs c, c<1> having apertures to receive the carbon electrode d and a porous tube b containing the zinc electrode. The whole arrangement shown in Fig. 2 is placed in an outer container which may be provided with a screw top. The Provisional Specification states that the lower disc c may be dispensed with, the tube b and carbon d being cemented to the bottom of the cell. Specification 108,482 is referred to.
Patent GB-1066385-A (GB)
Title: Decorative embossed foil articles and method and apparatus for making same
Inventor: CHIESA ANTHONY
IPC: B44C3/08
Filed: 1965-04-08
Abstract: 1,066,385. Decorative articles. PARK ELECTROCHEMICAL CORPORATION. April 8, 1965, No. 14944/65. Heading B6G. [Also in Division B8] A decorative article such as a name plate comprises a metal casting preferably chromium plated to which a heavy sheet of pre-embossed and decorated aluminium foil is adhesively attached. The adhesive is preferably thermosetting such as a rubber and high carbon phenolic base adhesive effective between 50‹ and 150‹ C. The foil is preferably attached to the casting in a hand-operated heated press.
Patent GB-226484-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B81/00
Filed: 1924-06-20
Abstract: 226,484. Graaf, C., and Brase (nÚe Kruger), E. Dec. 18, 1923, [Convention date]. Multiple - needle machines. - In a straightseam multiple - needle machine having the needles arranged in the line of feed, the feed of the cloth is made greater than the sum of the distances between the needles. In the case of two needles the feed is made double the distance between the needles. The leading needle a has a greater length between the eye and the point than the needle b so that when turning corners the former needle may remain in the work.
Patent GB-329823-A (GB)
Title: Improved direction and movement indicator for motor vehicles
IPC: B60Q1/34
Filed: 1929-05-14
Abstract: 329,823. Williams, W. F. May 14, 1929 Poad-traffic signals on vehicles.-Front and rear direction-signalling arrows 17, 20 on roadvehicles are actuated by a lever 11 controlling two pairs of Bowden wires linked to the ends of chains 24 engaging each a sprocket wheel 25 on the horizontal spindle of the arrow. A switch 30 operated by the foot-brake lights " stop " lamps in the arrows in any position thereof, while an extension of the hand lever 11, when turned to the left or right, engages contacts 33, 34 to light the arrow lamps when the arrows are in the signalling positions. A switch 37 cuts out the latter circuits in daylight.