baber/WOPTO huggingface dataset:
Patent GB-562151-A (GB)
Title: An improved baling-press
IPC: B30B9/30
Filed: 1942-12-18
Abstract: 562,151. Baling presses. GIBSON & SON, Ltd., J., GIBSON, G. T., and RAMSAY, W. W. Dec. 18, 1942, No. 18000. [Class 94 (i)] A self-contained baling press, particularly for compressing metal cans and boxes, comprises a motor unit mounted on a frame or bedplate, a pump or compressor driven by the power unit and arranged to supply pressure fluid to a hydraulic cylinder mounted on the bedplate, the piston of the cylinder being connected to the plunger of the press. The power unit preferably comprises an internal combustion engine 8, Fig. 1, and it pumps oil from a reservoir 11 to the cylinder 14 which is mounted horizontally in axial alinement with the press chamber 16. The top 18 of the press chamber is hinged at 19 to form a lid, and a spring 30 is provided for balancing the weight of the lid when it is open. The pressing plunger 36, Fig. 3, is provided with hinged flaps or wings 42 which are urged outwards by springs 45 into contact with the sides of the press chamber. The forward end of the chamber has converging sides 46 which force the flaps 42 inwards at the end of the pressing stroke so as to form the compressed material into a rectangular block.
Patent GB-1462414-A (GB)
Title: Method of producing cadmium sulphide
IPC: C01G11/00
Filed: 1974-04-24
Abstract: 1462414 Cadmium sulphide GTE SYLVANIA Inc 24 April 1974 [2 May 1973] 18007/74 Heading C1A [Also in Division C4] Cadmium sulphide is produced by reacting together, in water, cadmium sulphate, aqueous ammonia and carbon disulphide at 39 to 45‹ C. for 22 to 40 hours, preferably at pH 11À0-11À5. Carbonyl sulphide is formed as a gaseous byproduct. The product may be luminescent grade CdS.
Patent GB-168725-A (GB)
Title: Improved absorbent sock, pad or protector
IPC: A43B17/10
Filed: 1920-07-02
Abstract: 168,725. James, S. H. F., and Bowen, W. A. July 2, 1920. Pads; dress shields.-In an absorbent pad or dress protector charcoal or a substance of similar properties is contained in numerous holes a<2> in a layer of material a, preferably cork, secured between two or more outer layers of fabric c. d, e by binding g and lines of stitching.
Patent GB-584306-A (GB)
Title: Improvements relating to machines for use in the froth flotation of minerals
IPC: B03D1/16
Filed: 1940-12-23
Abstract: In a froth-flotation apparatus of the type using one or more impellers working within a container for producing the froth, the ratio of froth-liberation surface to the pulp volume multiplied by the square root of the surface is greater than 3.5 and the ratio of the height of the froth level above the bottom of the machine to the distance, measured along the froth surface, between the outer circumference of an impeller and the container wall is nowhere less than 0.3.  In one form of apparatus, the container wall or part of it slopes to reduce the area of the bottom of the machine, and in a preferred form the container is in the form of an inverted frusto-pyramid or frusto-cone.  One or more re-circulation ports, surrounding the impeller, may be provided in addition to a central opening in the bottom of the machine. Specifications 537,538 and 537,881 are referred to.
Patent GB-321948-A (GB)
Title: Improved coloured bituminous compositions
IPC: C08L95/00
Filed: 1928-06-22
Abstract: 321,948. Grimshaw, C. H. June 22, 1928. Colouring plastic compositions; fibrous compositions.-Coloured bituminous compositions are made by mixing cold argilliferous material and colouring matter with a cold preformed aqueous bituminous emulsion. Bentonite may be incorporated with the mixture. In an example, a bituminous oil or other bituminous material is emulsified at about 200‹ F with an alkaline solution of soap and is allowed to cool; in another tank, a creamy suspension of potters clay in water is formed and bentonite is added until the mixture is thick; white base colouring matter such as paris white, titanium oxide or antimony oxide is incorporated in the clay mixture together with a dye or other colour, e.g. Monolite Fast Scarlet, Monolite Yellow G, Brunswick Green, etc.; the bituminous emulsion is added slowly to the clay mixture with constant stirring; loading materials such as slate flour, lime stone dust. powdered cork, leather dust and asbestos may also be incorporated. For paints, the emulsion is of thick consistency, approximately 75 per cent bitumen and 25 per cent water, and for plastic compositions, a thinner emulsion of approximately 60 per cent bitumen is used. Suitable proportions for a pink composition are 125 parts of potters clay, 25 parts of bentonite, 100 parts of titanium oxide, 20 parts of Monolite Fast Scarlet. 260 parts of bituminous emulsion and 80 parts of water. Specifications 11028/03. [Class 95. Paints, &c.], and 312,467 [Class 22, Cements &c.], are referred to.
Patent GB-884370-A (GB)
Title: A ceramic dielectric capacitor
IPC: H01G4/228
Filed: 1958-06-06
Abstract: 884,370. Capacitors. N.S.F. NURNBERGER SCHRAUBENFABRIK UND ELEKTROWERK G.m.b.H. June 6, 1958 [June 8, 1957; July 31, 1957], No. 18160/58. Class 37. A ceramic dielectric cylindrical capacitor comprises a ceramic tube 1 coated inside and out with silver layers having substantially the same axial length and extending over the same axial length of the tube, fitted with an end cap and axial connecting wires 7, 9 soldered to the outer layer, and a helical spring and axial connecting wire 11 fitted within the bore and soldered to the inner layer. Cap 7 is replaceable by a helical spring gripping the outer layer, or spring 11 by an internal cup.
Patent GB-983318-A (GB)
Title: Method of, and apparatus for, measuring the output voltage of an a.c. bridge
Inventor: CLAMP DAVID WARWICK LLOYD
IPC: G01R17/00
Filed: 1962-05-11
Abstract: 983, 318. Measuring bridges. JOSEPH LUCAS (INDUSTRIES) Ltd. May 3,1963 [May 11, 1962], No. 18164/62. Heading G1U. A strain gauge bridge 7 is energized from an A.C. source 6 also energizing a transformer 8 having a variably tapped secondary energizing a fixed resistive potential divider 12; the outputs of the bridge and divider being applied in phase or antiphase depending on direction of bridge unbalance to a difference amplifier 9 whose output energizes a phase detector excited from the A.C. source to operate a control device 10 adjusting the secondary tapping for equality between the bridge and potential divider outputs, and operating an indicator for the measured strain gauge load. The secondary tapping may be selected by one or more uniselectors. Specification 983,317 is referred to.
Patent GB-489747-A (GB)
Title: Improvements in and relating to resinous compositions
Filed: 1937-06-30
Abstract: Electrical insulating material is made by applying to textile or other fibrous material, e.g. cloth or paper in tape or sheet form, a composition comprising an oil-soluble phenolaldehyde resin, resin comprising oxidized abietic acid or similar rosin acid, drying oil (e.g. tung oil with or without heat-polymerized linseed oil, or raw or heat-polymerized soya bean oil or perilla oil), a volatile solvent and preferably, a drier, e.g. calcium or lead resinate or lead naphthenate.  Solvents specified are turpentine, coal-tar solvents, and petroleum hydrocarbon solvents, e.g. naphtha or gasoline.
Patent GB-570317-A (GB)
Title: Improvements in or relating to taps or valves
IPC: F16K1/48
Filed: 1943-11-04
Abstract: 570,317. Double-beat valves. WINN & CO., Ltd., C., and MOUSLEY, N. K. Nov. 4, 1943, No. 18286. [Class 135] A valve of the double-beat type in which an axially movable spindle carries a valve head having a face or washer at each end or two spaced heads adapted to engage respectively with one of two axiallyspaced seatings, is pro. vided with two valve heads s, t, freely mounted on a spindle m between a collar u and nut v and adapted to engage respectively with seatings f, e to control the flow of fluid from the passage d to either of the passages b, c or by placing the valve heads in an intermediate position to allow fluid to pass from the passage d to both of the passages b, c. A compressible washer z is arranged between the valve heads so that when either valve head is urged against its seating by axial movement of the spindle the thrust is applied through one of the collars u, v bearing against the other valve head and is transmitted through the washer which is pressed around the spindle to seal the space between the spindle and valve heads. The axial length of the valve heads and washer is less than the distance between the collars u, v so that when neither valve head is in contact with its seating both heads are rotatable on the spindle.
Patent GB-204421-A (GB)
Title: An improved ship-log connector
IPC: G01P5/06
Filed: 1922-07-05
Abstract: 204,421. Gillie, J. W. July 5, 1922. Logs.-To transmit the motion of the rotator at an angle to the register on the bridge a coiled spring S is used attached at its ends to spindles mounted in ball bearings in casings C, C<1>, and overstretching of the spring is prevented by links E, F pivoted together at T and secured respectively to the casings C and C<1>. One spindle is formed with an eye D<1> for attachment of the line leading to the register, and the other with an eye D for attachment to the log line. The case C is pivoted in a support H fixed to a spar extending from the ship's side, and when the bridge is very high the link E may be fixed to a ring pivoted to the case C. Specification 9945/90 is referred to.
Patent GB-516363-A (GB)
Title: Improvements relating to laminated moulds or dies particularly for use in moulding pulp and method of making same
IPC: D21J7/00
Filed: 1938-06-22
Abstract: 516,363. Filters. SHEFFIELD, W. M. June 22, 1938, No. 18527. [Class 46] [Also in Groups V and XXII] A laminated mould or die for moulding pulp &c. and stated to be applicable as a filter, comprises a continuous strip wound into a spiral with. spaced convolutions 15, providing axial passages 16 through the die or filter, the edges of the strip at one or both ends being contoured to constitute moulding surface 17, while the convolutions are spaced by one or more members extending transversely through the coiled strip, such as by pins 13<1>, 14<1> passing through aligned holes drilled through the strip.
Patent GB-1255227-A (GB)
Title: Improvements in or relating to cellular vinyl halide polymer compositions
IPC: C08K5/138
Filed: 1969-04-10
Abstract: 1,255,227. Cellular vinyl and vinylidine halide polymers. TENNECO CHEMICALS Inc. 10 April, 1969 [13 May, 1968], No. 18548/69. Headings C3C and C3P. Cellular vinyl and vinylidine halide polymers are made by forming a plastisol containing the polymer and 1-10% by wt. azodicarbonamide, and heating the plastisol to 300-400‹ F. to fuse the polymer and decompose the azodicarbonamide, the mixture containing before heating 0.1-2% by wt. of an activator for the azodicarbonamide which is a mixture of 1-10 parts by wt. of a lead or zinc salt of a C 8-24  organic monocarboxylic acid, phenol or an alkylphenol and 1 part by wt. of a barium, calcium or magnesium salt of a C 8-24  organic monocarboxylic acid, phenol or an alkylphenol. In the examples the compositions used to form the cellular polymers comprised polyvinyl chloride, dioctyl and butyl benzyl phthalates, TiO 2 , azodicarbonamide, and lead or zinc and barium 2.ethylhexoates.
Patent GB-602266-A (GB)
Title: Improvements in or relating to dental flasks
IPC: A61C13/16
Filed: 1945-07-20
Abstract: 602,266. Dental flasks. GLICK, L. L. July 20, 1945, No. 18584. [Class 87(ii)] The body of the flask is a ring formed in two separate halves 7, 8 which abut at 9 and have tongues 10, 11. The tongues 10 fit into notches 6 in the base plate 5, and the tongues 11 fit into notches 4 in the top of the flask. The top comprises a plate 1 having projections 3 fitting into the notches 4 which are formed in a continuous wall part 2. The tongues 10, 11 and notches 4, 6 differ in length so that the ring can only be assembled one way up. Notches 12 allow the insertion of a prising instrument to separate the parts. When the flask is dismantled, the halves 8 can readily be separated from the plaster cast, and the cast broken away from the investment. To facilitate breaking away, the cast may be cut with a saw. According to the Provisional Specification (a) the top and bottom plates may have countersunk holes to key them to the plaster, (b) the halves may be held together not by tongue-and-notch means but by pin-andhole means, and (c) the flask may be semicircular in plan view.
Patent GB-201549-A (GB)
Title: Improvements in and relating to fluorescent screens for x-rays
IPC: G21K4/00
Filed: 1923-07-19
Abstract: A process is described for making zinc sulphide, alone or mixed with sulphides or other heavy metals, for use in producing fluorescent screens for Röntgen rays.  The zinc sulphide is prepared by treating zinc (crude, purified or refuse) with an acid so as to leave an excess of undissolved zinc and converting the dissolved zinc into zinc sulphide.  The sulphide is preferably calcined at a temperature of 1000 to 1200 DEG  C., preferably without access of air, (e.g. in an inert gas or vacuum).  The calcined zinc sulphide is preferably washed and sludged, and the more effective portions are sorted out by X-ray examination.  Instead of dissolving zinc in acid, a solution of commercial zinc salt, (e.g. zinc chloride) can be used.  A solution of this kind is first treated with some commercial (crude or impure) zinc and some acid added, the metallic zinc in all cases being in excess.  In making the zinc sulphide from the acid solution, the zinc salt solution is separated by filtration or decantation and preferably after treatment with an oxidizing agent (as bromine or potassium permanganate), and any iron impurity is removed by precipitation with a basic substance such as an alkaline earth oxide or hydroxide or carbonate.  After filtration a small quantity of one or more heavy metals in the form of a salt may be added (e.g. .0015 part of bismuth in the form of nitrate or .0001 part of silver in the form of ammoniacal silver chloride to 1 part of zinc).  Tungsten, uranium, copper or mixtures of these metals in the form of salts can be added.  The conversion to sulphide is made by boiling the above solution and precipitating with clear barium or strontium sulphide solution.  Hydrogen sulphide or alkali metal sulphide or ammonium sulphide can alternatively be used, but when alkali metal sulphides are used, iron must be avoided as an impurity.  The precipitation should preferably be incomplete and the filtrate show decided traces of zinc.
Patent GB-1420678-A (GB)
Title: Degradable glass suitable for containers
IPC: C03C23/00
Filed: 1973-04-18
Abstract: 1420678 Coated glass CORNING GLASS WORKS 18 April 1973 [1 May 1972] 18740/73 Heading B2E [Also in Division C1] An article comprising a glass, which glass is self-degrading under predetermined conditions, is made by: shaping an article from a glass consisting essentially of, by weight, 10-30% Na 2 O and/or K 2 O, 65-90% SiO 2 , and 0-20% of one or more of: CaO ZnO, MgO, B 2 O 3 , ZrO 2 , Al 2 O 3 , SrO, PbO, BaO, Fe 2 O 3 , NiO, TiO 2 , MnO, CuO, CoO and FeO; subjecting the article to an environment containing at least 50% by weight H 2 O at at least 50‹C to hydrate the glass on at least a portion of the surface, the hydrated surface glass having 5-35% by weight H 2 O within its volume; and simultaneously or subsequently providing a weathering-resistant skin coating layer to protect the hydrated surface, the hydrated portion being subject to self-degradation upon exposure to the ambient atmosphere by penetration or removal of at least a portion of the skin coating layer. The skin layer may be a coating of silicon polymer, or of vinylidene chloride polymer or copolymer (applied as a 20% by weight solution in butyl acetate). The surface hydration may be carried out using a liquid or gas (e.g. steam), and preferably at at least one atmosphere for “-24 hours at 50-300‹C. The liquid, if used, may be a dilute aqueous solution either of neutral salts of Li, Na, or K; or of acid salts of Al, B, Ca, Mg or P; or of an acid. If the article is a container, the outside alone may be contacted with the hydration medium, or the inside may be protected against hydration. This protection may be by an initial treatment, at above the annealing temperature of the glass, with SO 3 , CuCl_ or fluorine vapour or with a molten salt of Li<SP>+</SP> and/or Cu<SP>+</SP>, or by filling the container with a hydration-preventing liquid which is a concentrated aqueous solution of a Li<SP>+</SP> or Cr<SP>+++</SP> salt, an acid salt, or an acid.
Patent GB-1502348-A (GB)
Title: Water soluble acetylated bacterial extracts containing diaminopimelic acid obtained from corynebacteria
IPC: A61K35/74
Filed: 1975-05-05
Abstract: 1502348 Bacterial extracts from corynebacteria AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 5 May 1975 [6 May 1974] 18752/75 Heading A5B Acetylated water soluble extracts of molecular weight in the range 1000 + 200 to 8000  200 and containing diaminopimelic acid (DAP) are obtained from corynebacteria cells, e.g. corynebacterium parvum, by acetylating delipidated bacterial residues of the cells containing DAP, e.g. with a mixture of acetic anhydride and pyridene, and isolating the water soluble extracts e.g. by ethanol/water extraction. The acetylated water soluble extracts may be further purified and separated by filtering on a polyacrylamide gel or by chromatography on an adsorbent. The purified acetylated extracts obtained are essentially mixtures of acetylated water soluble fragments of the cell wall comprising disaccharide tetrapeptide, tetrasaccharide heptapeptide and its dimer, trimer and tetramer. The extracts in combination with a diluent can be used as a pharmaceutical composition for promoting resistance to viral or bacterial infections.
Patent GB-250449-A (GB)
Title: Improvements in ironing machines
IPC: D06F65/06
Filed: 1925-07-24
Abstract: 250,449. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). July 24, 1925. Ironing-machines with rollers rotating against concave surfaces. - In a pressing and ironing machine comprising a relatively stationary roll 6, Fig. 1, adapted to be rotated continuously or step by step, and a co-operating heated chest or platen 12 movable toward and from the roll, means are provided for preventing roll-rotation while the chest is moving, said means being so arranged that when the roll is rotating the production of chest movement stops the roll while roll-rotation is produced only when the chest is stationary. Alternatively, movement of the chest away from the roll is adapted to start step-by-step rotation of the roll. The roll shaft 4 is driven from the shaft 11 through gearing 7 - - 10. The chest 12 is mounted on the lever 13 pivoted at 14, and is operated from a crank 20 on a shaft 21 by toggle members 16, 17, a compression spring 27 through which the pressure is transmitted being fitted on the upper member 16 between an adjustable nut 26 and the swivel-block of the trunnions 29 on the arm 13. An adjustable nut 31 is provided on the upper end of the member 16 and is adapted to operate a switch 35 in the motor circuit to terminate the closing of the press. A similar switch 37 operated by the arm 13 is provided to terminate the opening of the press. The machine is driven bv an electric motor 42 on a shaft 43, motion being transmitted to the shaft 11 through worm-gearing 45, 46, a clutch 47, 48, Fig. 2, operated by an electromagnet 50 being adapted to drive a sleeve 51 having a brake-band 54 and coupled to the gear 10. The lever 13 is driven from the shaft 43 by clutch gear 60, 61 controlled by an electromagnet 65 while a treadle 73 and link 72 is provided to operate switches in a casing 68 which control the roll-rotation. An insulating block 75, Fig. 7, carrying a bridging- contact 76 is mounted on the hub of the crank 20 and co-operates with contacts 77 to produce automatic step-by-step rotation of the roll in timed relation with the opening movement of the head. The step-by-step rotation is controlled by contact segments in a casing 80. A feeding-belt 86 is arranged over the roll 6 and over an idle roll 87 mounted in arms 88, and upon each of the latteris mounted a casing 92 containing a safety-switch adapted to stop the machine if the operator's fingers pass in with the work and raise either rod 95, the said safety device being a particular application of that described in Specification 251,566.
Patent GB-707308-A (GB)
Title: Improvements in or relating to apparatus for transmitting and amplifying motion of aknown frequency of oscillation and suppressing superimposed motions of other frequencies of oscillation
IPC: F16H35/00
Filed: 1951-08-11
Abstract: 707,308. Vibration dampers. PILKING- TON BROS., Ltd., SMITH, R. BARRADELL-, and DAVISON, R. July 22, 1952 [Aug. 11, 1951], No. 18958/51. Class 108(3) Apparatus for transmitting oscillatory motion of a desired frequency and for filtering out motions of higher and lower frequencies, comprises a first and second resiliient bellows 3, 5 containing liquid and communicating with each other through a passage 6 having a bleed 7, an input member 1 connected to the bellows 3, the bellows 5 being coupled to a transmitting element 15 through a lost motion device 14, 16 and being spring-balanced at 10, 11 into a neutral position. The bleed 7 is connected with a reservoir 8 open to the atmosphere and is adjustable at 12 to absorb oscillatory motions below the desired frequency. The lost motion device is adjustable by screws 17 to absorb motions of constant amplitude above the desired frequency. Due to the difference in diameter of the bellows, the amplitude of.the desired motion is amplified. The invention may be used for transmitting the eccentric motion of a slowly rotating, distorted, or bowed, water-cooled casting roll, in continuous plate-glass processes. Slow changes, due to alterations in positions of the bearings of the Toll, and high frequency vibrations, due to roughness in the roll surface and vibration in the roll drive, are filtered out. The invention may also be used to transmit the deflections of a railway bridge under traffic, suppressing the slow change of position caused by temperature changes, and the vibrations due to traffic wheels and out of balance forces of locomotives.
Patent GB-1382914-A (GB)
Title: Bottle for storage of liquefied gas
IPC: F17C1/16
Filed: 1972-04-24
Abstract: 1382914 Blow-moulding SOC NATIONALE INDUSTRIELLE AEROSPATIALE 24 April 1972 18973/72 Heading B5A [Also in Division F4] A liquefied-gas storage vessel (see Division F4), comprising a wall of plastics material lined internally with a fabric liner may be formed by injection moulding an undersized vessel, inserting a liner in a folded state and blowing the vessel to its final state, the liner simultaneously unfolding. The folded liner may be placed on a die and the undersized vessel injection-moulded over the die prior to blowing. The liner may also be in the form of a plurality of strips of fabric initially overlapping but opening out during blowing.