baber/WOPTO huggingface dataset:
Patent GB-694820-A (GB)
Title: Improvements in or relating to tyre vulcanizing presses
IPC: B29D30/06
Filed: 1951-03-05
Abstract: 694,820. Tyre vulcanizing presses. ZANGL, K. March 5, 1951. No. 5215/51. Class 87 (ii). In a tyre vulcanizing press of the type having a pressure cylinder mounted underneath the press body for operating, a double lever pivotably connected to the lower part of the press and carrying the upper part of the press suspended thereon in such manner that it can, with freedom of movement, be pressed onto or raised from a tyre which is lying horizontally on the lower press part, the point of suspension d<SP>2</SP> of the upper part of the press and the pivotal connection e of the double lever with the lower part of the press lie in an approximately horizontal plane when the upper part of the press is pressed onto a tyre in the lower part thereof. The tyre, when placed in the lower part b, rests on projections in the mould and is thus slightly elevated, and to prevent pinching of the tyre when it is being pressed home by the closing of the upper part a the parts a and b first meet obliquely, e.g. the closing upper part has an inclination from front to rear, Fig. 2. This inclination may be achieved by mounting the upper part a unsymmetrically on the lever d, d', as shown, or by symmetrical suspension with a weight or spring applied to the front of the upper part. The free movement of the part a is limited by an angular stop f which encounters, in extreme positions, a pin g on the arm d<SP>1</SP>, preferably rubber-coated. To accommodate tyres of large width an intermediate ring may be used, screwed or pinned to the part b. High stresses may be caused by the press opening suddenly after the vulcanizing process, due to the tyre sticking to the part a, and to achieve a smooth opening action an additional pressure cylinder m may be mounted under the operating pressure cylinder c', communicating with it through a reduction valve at m'. The pressure medium in the cylinder m is oil, supplied from a control valve through m<SP>2</SP>, and the pressure medium in the cylinder c is compressed air supplied from a control valve through c'. The press is closed by compressed air forced into the cylinder c directly through c', but is opened by oil pressure from the cylinder m entering the opposite end of the cylinder c through the reduction valve, opening thus taking place under controlled pressure conditions.
Patent GB-346100-A (GB)
Title: Improvements in hoisting gear
IPC: B66D3/00
Filed: 1930-02-17
Abstract: 346,100. Lowering loads. KNIGHT, J. S., 67, Conway Road, Southgate, London. Feb. 17, 1930, No. 5249. [Classes 78 (ii) and 78 (v).] Relates to means for controlling the speed of lowering a partly-counterpoised load by acting upon the tail-rope U, Figs. 5 and 6, of a hoisting- winch, or upon the balancing rope W, Fig. 7, of a suspended load W<1>. In each arrangement, a weight Z is attached to the tail-rope or balance rope, the load descends freely until the weight Z meets a fixed stop Y, Figs. 5 and 7, or a stop R, Fig. 6, on the control cylinder F, B, and further lowering raises the control cylinder in fixed guides. The control cylinder comprises a reservoir F and hydraulic cylinder B working over a fixed ram A. The reservoir and ram cylinder communicate freely through a non-return valve 6 whilst the ram cylinder is descending during hoisting, but during lowering of the load the return of the liquid from the ram cylinder to the reservoir is retarded by a ported piston valve H, H<1>, which is moved by a link and lever connection with a roller N working along a cam-bar S mounted on the guides. The cam-bar is made in sections adjustable laterally, and can be set so as to give any desired control of the resistance against lowering.
Patent GB-228367-A (GB)
Title: Improvements in electromagnetic track brakes for railway and tramway vehicles and the like
IPC: B61H7/08
Filed: 1924-02-29
Abstract: 228,367. North, N. E., Ferguson, A. D., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 29, 1924. Electric and magnetic.-An electromagnetic track brake has renewable metallic brake shoes 3, 4 of rectangular cross-section longitudinally secured by the upper portions only to the lower portions of poles 1. 2 of the brake electromagnet so that no part of the poles extends substantially below the lower half of the shoes. The shoes are secured to the poles by vertical, horizontal or inclined bolts.
Patent GB-525328-A (GB)
Title: Improvements in and relating to actuating means for brake shoes
IPC: F16D65/14
Filed: 1939-02-17
Abstract: 525,328. Internal-expanding brakes. TAYLOR. A. G., and TAYLOR-JEFFREYS PATENTS HOLDING CO., Ltd. Feb. 17, 1939, No. 5373. [Class 103 (i)] In a brake-actuating device, a pair of bellcrank levers or equivalent members directly or indirectly engaging the brake shoes are pivoted to a slidable compensating carriage, such that the levers or equivalent members and the carriage may move freely independently of a movable member engaging the bell-crank levers &c. so as to rock them to apply the brakes. In the construction shown in Figs. 1 and 3, a casing 1 is provided with a carriage comprising two metal plates 5, 6 having limited sliding movement within the casing. Bell-crank levers 7, 8 are pivoted to the carriage on pins 9, 10, respectively, and are recesssed to receive the ends of thrust pins 20. The thrust pins at their other ends engage pistons 19 adapted to engage directly or indirectly the ends of the brake shoes (not shown). The bell-crank levers 7, 8 are actuated by means of a piston 14 with an extension 15, the piston being arranged in a casing 13 adapted to be connected to a source of fluid pressure. In a modification the bell-crank levers are actuated by a pull exerted due to suction or mechanical effort. In a further modification shown in Fig. 6, the bell-crank levers are replaced by members 27, 28 formed with curved surfaces 27<SP>2</SP>, 28<SP>2</SP> respectively which engage correspondingly-curved rods of pistons 29. Each piston is engaged by a screw 30 which can be adjusted for wear of brake linings.
Patent GB-252465-A (GB)
Title: Improvements in and connected with the manufacture of concrete beams, columns, blocks, and the like
IPC: E04C3/29
Filed: 1925-02-28
Abstract: 252,465. Alwyn, L. Feb. 28, 1925. Moulding beams and columns.-Faced beams, columns, blocks, and like members are moulded centrifugally in a mould of the type described in Specification 198,783. The facing layer 4 is laid in the mould first and allowed to set sufficiently to withstand the centrifugal action without displacement. The back of this layer is roughened or serrated while still plastic. The material for the main body of the member is afterwards placed in the mould and the latter rotated on a horizontal axis to form the completed member.
Patent GB-1133897-A (GB)
Title: New substituted hydroquinone compounds and process for their manufacture
IPC: C07D203/14
Filed: 1967-02-06
Abstract: 1,133,897. Ethyleneimino hydroquinones. CIBA Ltd. 6 Feb., 1967 [25 Feb., 1966], No. 5589/67. Heading C2C. Novel 2, 5-bis ethyleneimino-hydroquinones and salts, whose ethylene radicals each contain at the least one C 1-6  alkyl radical, particularly a methyl radical, and which contain in the 3- and 6-positions C 1-6  alkoxy or C 1-6  alkylmercapto groups are prepared by reducing the corresponding para-benzoquinone with, for example, hydrogen in the presence of a nickel catalyst, a metal hydride, or sodium dithionite in alkaline solution. 2,5-Bismethylethyleneimino-3,6-diethoxy (and dimethlymercapto-para-benzoquinone are prepared by reacting the corresponding 3,6- dichloro compound with sodium and alcohol or sodium and methyl mercaptan respectively. Therapeutic compositions, suitable for parenteral, enteral or topical application, contain the above novel compounds as the active ingredients. The compositions have a tumourinhibiting and antiflammatory activity; in addition, they display bactericidal properties and are effective against amoebµ.
Patent GB-980388-A (GB)
Title: N-substituted derivatives of aminoalkylsiloxanes
Inventor: MOREHOUSE EDWARD LEWIS
IPC: C08G77/388
Filed: 1962-02-14
Abstract: A siloxane having units of the formula <FORM:0980388/C1/1> wherein R1 is a monovalent hydrocarbon radical, Z is an ethylene or a hydrocarbon-substituted ethylene group, HO is interconnected to N through 2 C atoms, a is 0 or 1, n is an integer of from 3 to 15, b is 0, 1 or 2, R is H, a monovalent hydrocarbon radical or a unit of the formula <FORM:0980388/C1/2> and the N atom is separated from Si by at least 3 C atoms of each CnH2n group (see Division C3), is used as a flocculating agent for aqueous dispersions of clay.  Comparative tests given in Example (5) show the superiority of the siloxane of Example (1) over other aminoalkylorganosilicon compounds in flocculating aqueous dispersions of clay.ALSO:A siloxane comprising units of the formula <FORM:0980388/C3/1> wherein R1 is a monovalent hydrocarbon radical, Z is an ethylene or a hydrocarbon-substituted ethylene group, HO is interconnected to N through 2 C atoms, a is 0 or 1, n is an integer of from 3 to 15, b is 0, 1 or 2, R is H, a monovalent hydrocarbon radical or a unit of the formula <FORM:0980388/C3/2> and the N atom is separated from Si by at least 3 C atoms of each Cn\H2n group, can be made by reacting a siloxane comprising aminoalkylsiloxane units of the formula <FORM:0980388/C3/3> with a mono-epoxide, preferably in the presence of a lower aliphatic alcohol or water as catalyst. Suitable epoxides are olefin oxides, epoxy alcohols and glycidyl ethers and esters, examples of which are given.  The siloxanes may be co-polymerized with conventional siloxanes containing Si-bonded saturated or unsaturated hydrocarbon radicals.  In a typical example (1) ethylene oxide was passed into an ethanol solution of a liquid delta aminobutylmethylsiloxane -dimethylsiloxane copolymer to yield an oil of the formula <FORM:0980388/C3/4> wherein Me=methyl; the cyclic tetramers <FORM:0980388/C3/5> were similarly prepared in Examples (2) and (3) respectively.  Uses:  As flocculating agents for aqueous dispersions of clay; and as complexing or co-ordinating agents for removing metal ions, particularly cupric and ferric ions, from aqueous solution.
Patent GB-1334509-A (GB)
Title: Pipe forming apparatus
IPC: B21C37/12
Filed: 1972-02-07
Abstract: 1334509 Helically wound pipe; seaming SPIR-L-OK INDUSTRIES Ltd 7 Feb 1972 [29 June 1971] 5671/72 Headings B3A and B3J Pipe-forming apparatus 10, Fig. 2, comprises a tubular mandrel 15, means 50 at one end of the mandrel for swingably mounting said mandrel on a support 11, adjusting means 62, 63 for setting the mandrel in different angular positions relative to the support, pipe-seaming means 105, 135, mounting means 116 for securing the seaming means in the mandrel positioned to seam together overlapped edges (35), 36, Fig. 4 (not shown) of convolutions of pipe-forming strip 25 directed to and wound helically around the mandrel. Boxes 18-20 include rolls 21, 22 for forming the strip edges and may include corrugating rolls (not shown) all driven by motor (27), Fig. 1 (not shown). In operation strip 25 passes from the forming rolls 21, 22 and is fed over or under mandrel 15. Strip edge 98, Fig. 5, engages guide 82, which may include a roller (101,) Fig. 6 (not shown), so that tne strip is inclined longitudinally of the mandrel and the strip is wound helically around the mandrel. Adjacent edges (35), 36 of adjacent strip convolutions interlock and are pressed together as the overlapped edges move between the seaming rolls 105, 135, upper roll 135 being able to apply pressure through fluid-operated cylinder 144. Specifically, support roll 72 carries strip 25 over the top of the mandrel where there is likely to be maximum friction. In order to produce pipe 185 using strip of varying width, bolts 63 are adjusted to alter the mandrel angle relative to support 11 and therefore relative to the direction of strip feed, thus changing the pitch of the helical pipe seam. the angle of seaming rolls 105, 135 can also be altered relative to the longitudinal axis of the mandrel by rotating supports 115, 172 to enable pipe of different strip widths to be formed.
Patent GB-820308-A (GB)
Title: Improvements in or relating to controlling the supply of carbon dioxide and like coolants to cutting tools
Inventor: HOLLIS WILLIAM STEPHEN
IPC: B23Q1/00
Filed: 1955-02-25
Abstract: 820,308. Cooling cutting tools. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 27, 1956 [Feb. 25, 1955], No. 5681/55. Class 83 (3). The cutting-edges of tools such as lathe-tools, drills and milling-cutters are cooled by supplying a liquid coolant, such as carbon dioxide, intermittently through a tube or bore, or through the interstices of a sintered metal plug, the tube or bore and the grain-size of the sintered particles being such that the liquid coolant does not freeze and prevent the intermittent passage of coolant therethrough. A lathe-tool 1, Fig. 2, may have a hard-metal tip 2a and a plug 11 of sintered material at the end of a bore 2. A tube 7 within the bore delivers carbon dioxide to pass through the interstices of the plug and out through passages 3, 4, to the tool-faces. The tube 7 may have a reduced end, and the sintered plug is then omitted. An intermittent feed of coolant to the tool is provided in a lathe by arranging a cam on the end of the work-spindle to operate a lever and a flexible cable to open and close a valve in the coolant supply line intermittently as the spindle rotates. Drilling.-A drill 21, Fig. 3, is provided with orifices 22, 23, 25 for supplying carbon dioxide to the cutting-point. The drill is carried in a check 15 secured to the machine-spindle, which has a central coolant delivery passage 19 connecting with the drill passage 21 through a packing-ring 43. Carbon dioxide is led in through a non-rotating member 38 and slipring arrangement to the face of the spindle head 26. As the latter rotates, a ball-valve 30 passes under a cam-portion 42 on the stationary parts and is thus depressed intermittently against the pressure of a spring 31 to allow liquid carbon dioxide to flow along passages 27, 32, 19 to the drill. Milling.-A milling-cutter with four arms 45, Fig. 4, and cutting-edges 46, has passages 47 in the arms supplied with liquid carbon dioxide from a tube in a hollow supporting arbor. Ball-valves 49 are provided behind each cutting-tip, and when these contact the work, the valves are opened to allow the escape of the coolant through a porous-sintered plug 48 adjacent the cutting-tip. Suitable bore diameters for passing coolant are from 0.007 inch to 0.012 inch and sintered plugs allowing a flow-rate of 0.5 to 4 lbs. per hour of carbon dioxide are said to be satisfactory.
Patent GB-1122774-A (GB)
Title: Purification of propylene oxide by distillation
IPC: C07D301/32
Filed: 1966-02-09
Abstract: Propylene oxide is separated from water and organic impurities by introducing the crude liquid through line 10 into a fractional distillation column 14 which is supplied with steam through line 16; water and some of the impurities are withdrawn from the base of column 14, and a sidestream is withdrawn from the upper section of the column through line 28 and introduced into stripping column 30, from the base of which the desired purified propylene oxide is withdrawn through line 32. An example relates to the purification of propylene <PICT:1122774/C2/1> oxide containing 5.7% of propylene dichloride and ether, 5.4% of water, and minor proportions of propylene, propionaldehyde and carbon dioxide.  Propylene dichloride is eliminated, together with water, from the base of column 14.  The vapours withdrawn from the top of stripper 30 are united with the vapours from the top of column 14, and the mixture is passed to condenser 48.  The condensate is collected in reflux drum 50, which is provided with vent condenser 70, and the gases are vented through line 66.  Part of the condensate is refluxed from drum 50 to the head of column 14 via line 56 and flow-control 58. Circuit 60 controls the valve in line 28 in response to the liquid-level in drum 50.
Patent GB-479392-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/22
Filed: 1937-02-26
Abstract: 479,392. Condensers. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.) Feb. 26, 1937, No. 5820. [Class 37] The compound used to surround a condenser, which has been impregnated with a halogenated hydrocarbon, in a casing comprises a mixture of asphaltic material with at least 5 per cent of a vegetable wax such as Carnauba wax, Japan wax or Candelilla wax. The open end of the casing may be covered with cellulose acetate and the exterior subsequently sprayed with a solution of cellulose acetate.
Patent GB-1477414-A (GB)
Title: Printing ink binding agents
IPC: C09D11/00
Filed: 1975-02-11
Abstract: 1477414 Printing ink binder resins HOECHST AG 11 Feb 1975 [12 Feb 1974] 5843/75 Headings C3P and C3R Resins having a melting point of 130-225‹ C., and useful as printing ink binders, are prepared by reacting together in a single stage, and in the absence of olefinically unsaturated dicarboxylic acid or derivatives thereof, (1) a hydrocarbon resin having a bromine number of 50-200 and predominating in units of cyclopentadiene or derivatives thereof (2) a phenolaldehyde condensate and/or the precursors therefor, the phenol content consisting predominantly of at least one phenol substituted by a hydrocarbon group and (3) a natural resinic acid or an ester or metal salt thereof. The reaction mixture may also include one or more of an olefinically unsaturated monomer, an inert solvent, an alkaline catalyst and a di- or poly-functional alcohol to esterify the resinic acid during the reaction. Alternatively, the latter esterification may take place subsequent to the main reaction. The phenol-aldehyde condensate may be one which has been modified by reaction with an olefinically unsaturated monomer. In examples the following materials are used: hydrocarbon resin: polycyclopentadiene or the same containing units of styrene and vinyl toluene; phenol aldehyde component: p-tert-butyl phenyl/formaldehyde condensate, a mixture thereof with nonyl phenol and paraformaldehyde, p-tertbutyl phenol and paraformaldehyde, a p-tertbutyl phenol/nonyl phenol/formaldehyde condensate or a p-tert-butyl phenol/formaldehyde condensate modified with styrene; resinic acid: colophony, wood resin or tall oil resinic acid; catalyst (when present): zinc acetate, zinc carbonate calcium acetate or magnesium oxide; solvent (when present): xylene or mineral oil. In some cases, esterification of the resinic acid component is also affected, either simultaneously by pentaerythritol (Example 3) or glycerol (Example 17), or subsequently by glycerol (Example 2) or a glycerol/pentaerythritol mixture (Example 4).
Patent GB-119412-A (GB)
Title: Improvements in Runner Devices applicable to Sliding Doors, Monkey Carriages, Trolleys, Turntables, Skids and like Apparatus and Appliances.
Inventor: WOODCOCK CHARLES
IPC: E05D15/06
Filed: 1918-04-09
Abstract: 119,412. Woodcock, C. April 9, 1918. Frame rollers.-Rollers for sliding doors, monkey carriages, trollies, turn-tables, skids, &c comprise a pair of concave divided rollers a, a mounted on spindles in a casing d and engaging a ball c which protrudes slightly from the casing. When the roller runs on a rail, the ball c is formed with a groove c<1> which is engaged by a set-screw e. If the appliance is inverted it may be used for facilitating the moving of heavy metal plates &c.
Patent GB-391813-A (GB)
Title: An improved process for the production of granular mixed fertilisers containing ammonium phosphates
IPC: C05B7/00
Filed: 1931-09-25
Abstract: Granular mixed fertilizers containing ammonium phosphates are obtained by moistening a mixture containing phosphoric acid and other fertilizing substances with such an amount of water that on heating to 70-80 DEG  C. a fused mass is obtained which will solidify on cooling, granulating the mass, before or after cooling, and treating the granulated product with gaseous ammonia.  The fertilizing substances may be potassium salts, e.g. potassium sulphate, ammonium salts, e.g. ammonium sulphate, nitrates or phosphates, e.g. calcium phosphate.  Specifications 375,965; and 376,934, [Group I], are referred to.ALSO:Granular mixed fertilizers containing ammonium phosphates are obtained by moistening a mixture containing phosphoric acid and other fertilizing substances with such an amount of water that on heating to 70-80 DEG  C. a fused mass is obtained which will solidify on cooling, granulating the mass, before or after cooling, and treating the granulated product with gaseous ammonia.  The fertilizing substances may be potassium, e.g. potassium sulphate, ammonium salts, e.g. ammonium sulphate, nitrates, or phosphates, e.g. calcium phosphate.  Specifications 375,965 and 376,934 are referred to.
Patent GB-976382-A (GB)
Title: Improvements in or relating to foamed products
Inventor: FROWDE STANLEY CHARLES
IPC: C08J5/12
Filed: 1961-02-20
Abstract: A process for improving the adhesion between a surface and a polyurethane foam formed on that surface consists in pretreating the surface with a prepolymer which contains the reaction product and/or mixture of a hydroxyl-group-containing polymer with more than the equivalent amount of an organic polyisocyanate before the polyurethane foamforming mixture is placed on the surface and allowed to react.  The surface to which the polyurethane is applied may be textiles of wool, cotton, silk, rayon, polyethylene terephthalate, polyacrylonitrile, nylon or polypropylene; wood; plastic; leather; asbestos; aluminium; steel; natural rubber; or synthetic polymers such as butadiene-acrylonitrile copolymers, vinyl polymers and copolymers such as those of vinyl chloride and vinyl acetate, nylon, or polyethylene terephthalate; it may be roughened before coating. The prepolymer and the foam-forming mixture may each contain an organic polyisocyanate and a polyester, polyesteramide or polyether of which many examples are given; the prepolymer may also contain a substance such as b -trichloroethyl phosphate, dioctyl phthalate or tricresyl phosphate which has a slight solvent effect on the substrate to be coated.  The prepolymer may be applied by spreading, by brushing or by spray gun and the foam-forming mixture then poured on, even while the prepolymer is still fluid.  Examples are given of coating steel and aluminium sheets, and surface-sheet of polyvinyl chloride and of mixed polyvinyl chloride and acrylonitrile-butadiene-styrene copolymer.
Patent GB-803227-A (GB)
Title: Improvements in air filter units
Inventor: BARKER DEREK RICHARD
IPC: B01D46/12
Filed: 1956-02-28
Abstract: 803,227. Air filters. SUPERVENTS, Ltd. May 24, 1957 [Feb. 20, 1956], No. 6148/56. Class 8(2). In an air filter unit comprising sheet media 9 e.g., paper supported on spaced foraminous sides 2 of a frame 3 the edges of each sheet 9 are seated on resilient strips 8 secured to the frame 3 and are releasably clamped thereon by a frame 10. As shown the frame 3 is of truncated triangular cross-section closed at the narrow end 7 and open at the other end 4 through which filtered air is drawn. The clamping frames 10 are hinged at one end 11 and are secured by a toggle fastener at the other and the wide end of the frame 3 is held against a rubber gasket 16 by a cross bar 18 secured to a longitudinally extending rod 19 having a wing nut 23 and an adjusting knob 20. A plurality of such units are arranged in parallel in a casing 6.
Patent GB-431923-A (GB)
Title: Improvements in or relating to artificially cooled mercury vapour discharge tubes
IPC: C03C27/04
Filed: 1935-02-26
Abstract: 431,923. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 26, 1935, No. 6183. Convention date, Nov. 5, 1934. Drawings to Specification. [Class 56] [See also Groups XL and XI] Tungsten leading-in wires are covered with insulating material and are sealed into a quartz high-pressure discharge tube by intermediate members consisting of 88À3 per cent of SiO2, 8À4 per cent of B2O3, 2À9 per cent of Al2O3, and 0À4 per cent of CaO.