baber/WOPTO huggingface dataset:
Patent GB-1013814-A (GB)
Title: Piston-type internal combustion engine
IPC: F01N3/26
Filed: 1962-06-25
Abstract: 1,013,814. Exhaust systems; valves; turbo-chargers. R. POUIT. June 25, 1962 [June 27, 1961], No. 24354/62. Headings F1B and FIG. Return of exhaust gas into the cylinder immediately following the high pressure pulse of the initial exhaust phase is prevented by a nozzle dc, da, in the exhaust pipe, Fig. 1, through which the initial phase exhaust gases pass at supersonic velocity and are deviated by shock waves produced at the edges 6, 7, Fig. 2, the member dc having a reflecting surface 8 which produces eddies in the return current 10 1 , 10 2 , which prevent at least the main part of the return current passing through the nozzle. The nozzle flow section is annular and inclined vanes 9 may be provided on the surface 8, the return flows 10 1 , being deflected to meet the stream 10 2  headon producing turbulence which prevents return flow through the nozzle thereby allowing the depression produced in the cylinder by the initial exhaust pulse to be maintained all through the inlet period. In Fig. 1, the initial phase gases flow through the nozzle and through blades 25 of a turbo-blower, a passage 15 for the second exhaust phase being initially closed by a valve 13 carried by the exhaust valve C and opened when the initial phase is terminated to permit the lower pressure second phase gases to pass through passages 15, 16, to a second turbine stage 18 where they mix with the gases from the first stage 25. A cooling air nozzle 28, which may be supplied by a blower, directs cooling air on to the exhaust valve C through a jacket 30 during the suction phase following the initial exhaust pulse. In Fig. 4 the gases of both the initial and second exhaust stages pass through the nozzle dc into an expansion chamber 15a containing guide vanes 32 and 34 by which gas in the chamber is set into motion by the exhaust pulse. Cooling air for the valve is supplied through a jacket 30.
Patent GB-508749-A (GB)
Title: Improved packing means, particularly intended for valve spindles, shafts and the like
IPC: F16K41/02
Filed: 1938-08-18
Abstract: 508,749. Stuffing-box packing. THUNHOLM, K. L. E. Aug. 18, 1938, No. 24357. Convention date, Sept. 6, 1937. [Class 122 (v)] Closed packing-rings 4 of U cross-section having cylindrical bearing surfaces are deformed by axial pressure acting at a radial distance from the bearing surface. The rings may move radially in the box. The flanges of the rings may be inclined outwardly or may have axial extensions. Alternatively, the flanges may be at right angles to the rod, intermediate rings being provided to transmit pressure to the outer edges thereof. A film of anti-friction metal may be. provided on the ring bearing surfaces and soft packing 5 may be provided between the rings. Lubricating oil is retained in the box by packing 10.
Patent GB-1174472-A (GB)
Title: Photographic Materials.
Inventor: AUDRAN ROGER GASTON LOUIS
IPC: G03C1/74
Filed: 1967-05-26
Abstract: 1,174,472. Silver halide materials. EASTMAN KODAK CO. May 26, 1967 [May 31, 1966], No. 24561/67. Heading G2C. Silver halide emulsion layers having a high concentration of silver halide at one surface thereof contain mucochloric acid or glyoxal to prevent "contamination" fog. The surface concentration of silver halide may be formed by a centrifuging or sedimentation method.
Patent GB-817346-A (GB)
Title: A clip for fixing a tee-section member to tubular members
Inventor: GIFFORD LOUIS RONALD
IPC: E04B1/58
Filed: 1956-08-13
Abstract: 817,346. Roofs; ceiling coverings. STRAMIT BOARDS Ltd Nov. 12, 1957 [Aug. 13, 1956], No. 24700/56. Class 20(4) A clip for fixing a tee-section member 6 to a pair of parallel tubular members 3 spaced slightly apart comprises a plate like portion 1 having semi-circular recesses 2 on each side which are engaged by the tubular members 3. At one end and at right angles to the portion 1 is a rectangular part 5 having ears 7 which are bent over to secure thereon the flanges of the member 6. The other edge of the plate is strengthened by bending it at right angles to form a rib 4.
Patent GB-1528406-A (GB)
Title: Converter-regulator circuit arrangement
IPC: H02M3/338
Filed: 1976-06-15
Abstract: 1528406 Automatic voltage control WESTINGHOUSE AIR BRAKE CO 15 June 1976 24777/76 Heading G3R [Also in Division H2] A regulated D.C. voltage supply circuit, for use in a train speed control system, includes an amplifier connected at its output to an inverter and a rectifier. The operation of the amplifier is controlled by a feedback signal supplied to the input of the amplifier from the output of the rectifier. As shown, a differential operational amplifier 1 receives a reference voltage V ref  at its inverting input and a supply voltage V in  together with a feedback signal at its non-inverting input. When the output voltage at terminals 9, 10 is below a desired level, the amplifier 1 produces a positive output voltage so that an inverter 2 produces an output voltage which is fed through a transformer T to an output rectifier bridge 3. When the desired voltage level is reached, the amplifier 1 changes state and its output terminal assumes ground potential, turning off transistors Q1, Q2 in the inverter 2. The output voltage decreases until the amplifier changes state again and the inverter begins further operation, thus maintaining the output voltage close to the desired value.
Patent GB-632417-A (GB)
Title: Improvements in and relating to toys adapted to simulate a figure in the action of walking or running
IPC: A63H7/02
Filed: 1947-09-10
Abstract: 632,417. Walking toy. GROSSE, M. Sept. 10, 1947, No. 24888. [Class 132 (iii)] A toy has resiliently flexible legs formed by helical or leaf springs or made of rubber with a foot or shoe piece the under surface of which, from front to rear, is convex or includes at least one convex part so that, when the toy is pulled along, it appears to walk or run. As shown, the body is formed by a rectangular piece 1 of wood or the like with a head 2. Helical springs 3 are secured in sockets drilled one in each corner of the rectangle and a foot 4 is attached to each spring. The undersides of the feet may be circular and convex or may be elongated with convex ends. Suitable dimensions for a typical toy are specified. As the toy is pulled along, the legs are deflected rearwardly until their resilience overcomes the friction between the feet and the floor, whereupon the legs flick forwards.
Patent GB-503391-A (GB)
Title: Improvements in and relating to methods of and apparatus for scanning in television systems
IPC: H04N3/38
Filed: 1937-09-29
Abstract: 503,391. Television. CLOTHIER, S. L., and HOGENCAMP, H. C. Sept. 29, 1937, No. 24890/38. Convention date, Oct. 6, 1936. Divided out of 503,327. [Class 40 (iii)] In a system for analyzing a motion picture film into elemental areas, an image of an elongated aperture 19 is focused transversely on the film 12 by a cylindrical lens 17 to form a transverse image. An image J of the illuminated area of the film is focused by a lens 18 on a screen 24 having a vertical slit 20, the image being traversed laterally across this slit by a rotating mirror wheel 21. The use of a vertical slit 20 perpendicular to the image J compensates for any vibration or mechanical errors in the apparatus. Specification 475,000 is referred to.
Patent GB-1284677-A (GB)
Title: Improvements in or relating to chromium electro plating
IPC: C25D3/10
Filed: 1970-05-22
Abstract: 1284677 Chromium electroplating M & T CHEMICALS Inc 22 May 1970 [26 May 1969] 24921/70 Heading C7B Iridescent chromium is electro-deposited from an aqueous bath containing (a) hexavalent chromium ions; (b) a (halo) alkyl sulphonic acid or (halo) alkyl phosphonic acid or salt thereof; and (c) an acid having the general formula wherein C is 1 to 3, and Z is a hydrogen atom or an organic group having 1-3 carbon atoms; or a salt or ester thereof. The chromium may be present as chromic acid; and in part as sodium chromate or dichromate, potassium chromate or dichromate, strontium chromate, magnesium dichromate or lanthanum chromate or dichromate. As catalysts the bath may include sulphate, fluoride or complex fluoride ions, e.g. as fluosilicate, fluoborate, fluoaluminate, fluotitanate or fluozirconate. As neutralizers or buffers phosphates, borates, sulphonates may be present. The (halo) alkyl acids of (2) above may be present as Na, K, Li, Cs, NH 4 , Ca, Sr or Mg salts or as esters. The surface to be coated may be of iron, steel, bronze, copper, zinc, aluminium, magnesium, nickel or brass; brass, steel or zinc plated with copper bronze or semi-bright nickel and thereafter plated with bright nickel, or plastics material, e.g. having a nickel coating. The iridescent coating may subsequently be coated with a further metal coating, e.g. of Ni, Cu or Cr, or of an organic or inorganic coating.
Patent GB-1424104-A (GB)
Title: Tools
IPC: B23B31/08
Filed: 1973-05-24
Abstract: 1424104 Tap drivers VALERON CORP 24 May 1973 [25 May 1972] 24938/73 Heading B3N A tap driver, the embodiment of Figs. 1 and 3, has a driving member 10 and a driven member 18. Member 18 has a cylindrical portion 34 engaging in a bore 32 in the driving member. Portion 34 has a race 66 formed therein which co-operates with channels 70 in bore 32. Rollers 72 engage in the race and channels and engage one side only of the channels during rotation. Spring 54 biases the two parts together and also allows for axial displacement of member 18 to ensure proper initial engagement. In a modification, Figs. 4 and 5, balls 172 are used instead of rollers and there are two springs 154, 155 which are housed in portion 134. Shank portion 109 is detachable so the driver can be adapted for use with different spindles.
Patent GB-764975-A (GB)
Title: Improvements in or relating to a method of unreeling wire from a coil and to apparatus for carrying out the same
Inventor: RICHARDSON WILLIAM HADDON
IPC: B65H57/18
Filed: 1954-08-28
Abstract: 764,975. Unwinding wire. CONTINENTAL CAN CO., Inc. Aug. 28, 1954, No. 25053/54. Classes 120 (2) and 120 (3). Apparatus for supporting a coil of wire &c. 16 during unreeling comprises a container having an outer wall 11, a bottom wall 10, a cylindrical core member comprising two telescopically related parts 17, 18, the part 17 being fixed to the wall 10, the core part 18 having a lateral flange 20 and being adjustable with reference to the part 17 so that the flange 20 may be raised above the top of the outer wall 11. Detachably attached to a dove-tailed slot in a bracket 24 on the wall 11, is a rod 27 carrying an adjustable sleeve-like guide 28 for the wire 32 from the coil 16 as it unwinds about the smooth edge 21 of the flange 20. In some cases, where the wire tends to kink, a disc 34 with a central hole 35 is positioned above the top 19 of the member 18. The wire then travels over the edge 21, under the disc 34 and then upwards through the hole 35 and guide 28. When packed for transport, the container top is closed by an outer cover 12 whose edge 13 is sealed by a ring 14 to the wall 11.
Patent GB-988355-A (GB)
Title: Improvements in or relating to envelopes especially for gramophone records
Inventor: VERNON PHILIP PERCEVAL
IPC: B65D85/57
Filed: 1960-07-20
Abstract: 988,355. Envelopes. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 20, 1961 [July 20, 1960], No. 25221/60. Heading B6A. An envelope comprises a rigid cover and a soft, pliable protective coating of synthetic plastic provided in the interior thereof with the coating adhering superficially to the surface of a paper support secured to said cover. The cover of cardboard or chipboard may comprise two separate or integral squares A, B and a rectangular sheet 1 of protective coating, composed of polyethylene formed as an adhering layer on paper or polyethylene extruded on to the paper in liquid or plastic form, laid over the squares of cardboard A, B, whereby the envelope is formed by folding the composite laminate upon itself along lines 7 and 8 so that the polyethylene coating on one folded portion faces the polyethylene on the other folded portion. The coated paper 1 is provided with overlapping portions 2 and 3, which serve to secure the coated paper to the rigid cover. An art or decorative cover having flaps on three of its sides together with the overlapping portions of the protective coating are folded over the front or rear of the envelope and secured by an adhesive so as to close three sides of the envelope. The protective coating may be secured to the cover over the whole surface of the latter or only along the edges thereof, whereby a cushion of air may be retained between the cover and coating to increase the protection.
Patent GB-806912-A (GB)
Title: Improvements in or relating to the production of tracing or reproduction cloths and the like
Inventor: DUNBAR CHARLES
IPC: D06M15/39
Filed: 1954-09-01
Abstract: 806,912. Tracing and reproduction cloths. WINTERBOTTOM BOOK CLOTH CO. Ltd. Sept. 2, 1955 [Sept. 1, 1954], No. 25349/54. Drawings to Specification. Class 140. A tracing or reproduction cloth comprises a dimensionally stable sheet-like material of a cured addition polymer having embedded therein a filling sheet of fabric, said addition polymer being formed by curing a polyester composition as defined, the sheet-like material having been also rendered capable of receiving pencil and/or ink marks by coating with gelatine or nitrocellulose in known manner or rendered light-sensitive by coating in a known manner with a light-sensitive layer. The polyester composition is defined as a polymerizable liquid which on curing forms an addition polymer and sets on curing to a clear transparent sheet and which comprises a condensation product of a dibasic acid and a dihydric alcohol at least one of which is unsaturated, and a monomerie vinyl compound. Fabrics used for reinforcing the resin sheet include pulp, paper, woven or knitted fabrics, fibres, glass fabrics, woven nylon, rayon or " Terylene " (Registered Trade Mark). To avoid the danger of crease marking or otherwise damaging the surface of the finished reproduction cloth, the filling fabric may be first impregnated with a formaldehyde condensation product prior to impregnation with the polyester composition. This is particularly useful when the filling sheet is made of cotton.
Patent GB-481886-A (GB)
Title: Improvements in or relating to the storage of liquids or other materials
IPC: B65D88/76
Filed: 1936-09-18
Abstract: 481,886. Discharging liquids by pressure of air or water. HUMPHREYS, E. W. A., and HUMPHREYS, P. H. I. Sept. 18, 1936, No. 25415. [Class 21] [Also in Group XXIX] Liquids stored in steel piling tubes 12 driven into the ground are forced out through a pipe 19 by compressed air delivered through a valve 21. A draining-pipe 22 extends through the pipe 19. Alternatively, liquids such as oil may be discharged by water forced into the lower part of the tubes from a similar tube in which it is stored, and to which it is returned by air pressure applied to the tube from which the oil &c. has been discharged.
Patent GB-763864-A (GB)
Title: Multi-purpose derrick barge and method of use in oil well drilling and servicing
IPC: E21B35/00
Filed: 1954-09-02
Abstract: 763,864. Drilling earth and rock ; artificial islands. LUCAS, J. E. Sept. 2, 1954 [May, 26, 1954], No. 25486/54. Classes 68 (2) and 85. Apparatus for use in drilling and servicing under water wells comprises a barge having means to raise it above the water and carrying a derrick structure which, in its working position, has the major part of its weight supported on an independent platform spaced from the barge and raised above the water. The barge 1 has pilings or caissons 6 which are driven by hydraulic jacks 7 or by jetting into the ground below the water and then the barge raised clear of the water on the pilings. A platform 10 is suspended a suitable distance from the barge 1 by arms 51 and then pilings 63 are passed through holes 64 in the platform 10 and driven into the ground using a rotatable crane structure 11 mounted on the barge and forming part 15 of the derrick structure. The platform 10 is secured to the pilings 63. A bridge member 66 is supported on the platform 10 and barge 1. A leg 73 is pivoted to each side of the upper end of the boom 15 to form the derrick structure, these legs being lowered until the ends 75 engage releasable hooks 76 on the bridge members 66. The ends 77 of the legs 73 and the upper end of the boom 15 are adjustable in length by hydraulic rams 87 in order to position a crown block 22 vertically above a hole 72 in the platform 10. A hook 25 supports a drill string passing through the hole 72 and rotated by a turntable 71 in the usual manner. Drill pipes 96 may be stacked vertically on the bridge member 66 ready for use. When drilling is completed, or in the case of fire, the legs 73 are folded back to the boom 15, the bridge 66 drawn back on to the barge 1 which is lowered into the water, the pilings 6 drawn up, and the barge towed away (Fig. 9), the platform 10 being left as a permanent structure. In a modification Fig. 16 there is a single leg 73b and cables 110 are used to steady the derrick. When servicing the well the barge approaches tc within a short distance of the platform 10 drops two anchors 100, 101, and then approaches the platform 10 .  by paying out lines 102, 103 from winches 104, 105 while it is nudged by a tug 106. When the barge is a suitable distance from the platform it is raised &c. as before.
Patent GB-863159-A (GB)
Title: Vulcanizable mixtures
IPC: C08K5/205
Filed: 1957-08-13
Abstract: Compounds of the formula \sSYH2N.R.NHCOO-, where Y is hydrogen or an alkyl or aryl radical (which may be substituted with chlorine and/or fluorine) and R is an acyclic alkylene radical of 4-19 carbon atoms, which may be substituted with amino, alkyl or aryl radicals or fluorine or chlorine, are prepared by reacting the corresponding polyamine in a nonpolar solvent with carbon dioxide under anhydrous conditions at 20-100 DEG C.
Patent GB-338857-A (GB)
Title: Improvements in or relating to fluid circulatory heating systems
IPC: F16K11/00
Filed: 1929-08-22
Abstract: 338,857. Brown, A. G. Aug. 22, 1929. Heating by circulation of fluids.-The conduits A, A<1> connected in parallel and arranged in the circulation pipes of a circulatory fluid heating system allow a restricted flow of heating fluid through one of the conduits A<1> when the normal degree of heating is not required, and the flow of heating fluid through the other conduit A is cut off by a valve B<1>. The valve B<1> may be operated electrically under the control of a clock. The valve B in the conduit A may be so controlled thermostatically as to regulate the fluid flow to maintain a desired minimum temperature in the heated room or chamber.
Patent GB-1026369-A (GB)
Title: Improvements in or relating to the preparation of 2,4,6-trichloro-2,4,6-triphenyltriphosphonitrile
IPC: C07F9/6593
Filed: 1964-06-22
Abstract: 2,4,6 - Trichloro - 2,4,6 - triphenyltriphosphonitriles are prepared by reacting a solution of phenyltetrachlorophosphorane (#fPCl4) in an inert solvent, with solid NH4Cl, the concentration of #fPCl4 in the solvent being maintained during the course of the reaction at a value not exceeding 10-4 moles per litre of solvent. Suitable solvents are halogenated benzenes such as chlorobenzene, bromobenzene, 1,2-dichlorobenzene and 1,2,4-trichlorobenzene and aliphatic hydrocarbons such as nonane, hexane, heptane and isohexanes.  The ammonium chloride preferably has a particle size of less than 10 microns and may be prepared by passing gaseous HCl and gaseous ammonia into the inert solvent. A suitable temperature range is between 60 DEG  and 150 DEG  C.  The 2,4,6-trichloro-2,4,6-triphenyltriphosphonitrile may be recovered from the reaction mixture by first removing excess ammonium chloride by filtration or by adding water and heating at 80 DEG  to 100 DEG C., evaporating the reaction mixture to obtain a residue and extracting the residue with an aliphatic hydrocarbon solvent selectively to separate the 2,4,6-trichloro-2,4,6-triphenyltriphosphonitriles.
Patent GB-1236211-A (GB)
Title: Aromatic amide-imine polymers, n-aryl polybenzimidazoles derived therefrom, and processes for preparation thereof
IPC: C08G73/18
Filed: 1968-05-29
Abstract: 1,236,211. Coatings. TEIJIN Ltd. 29 May, 1968 [31 May, 1967; 11 Sept., 1967; 14 Sept., 1967; 21 Nov., 1967; 2 April, 1968], No. 25755/68. Heading B2E. [Also in Division C3] Polyamide benzimidazoles having recurring units of formula: in which: represents a trivalent aromatic residue, Y represents an aromatic radical and A represents an aromatic group having the carbonyl groups bonded to it other than in the ortho or peri configuration may be used as coating materials. In Example 129 terephthaloyl chloride is reacted with 2, 4-diamino-diphenylamine, in the presence of benzoyl chloride as chain terminator and sodium carbonate as acid acceptor to produce a polyamide-imine. This is converted to the polyamide-benzimidazole by heating, dissolved in N-methyl pyrrolidone and applied to steel sheet. The coating is cured by further heating. In Example 130 the polyamide-imine is preferred from terephthaloyl chloride, isophthaloyl chloride, and 2, 4-diamino-diphenylamine in a mixture of methyl ethyl ketone and aqueous sodium carbonate. The polyamide benzimidazole is dissolved in a mixture of N-methyl pyrrolidone and dimethyl acetamide and applied to copper sheet and a glass rod.
Patent GB-470050-A (GB)
Title: Improvements in and relating to screw fans
IPC: F04D29/38
Filed: 1936-09-22
Abstract: 470,050. Screw fans. SAMSON UNITED CORPORATION. Sept. 22, 1936, No. 25777. Convention date, Oct. 2, 1935. [Class 110 (i)] A fan blade consists of a relatively wide flexible sheet member secured to the hub in such a way as to make it rigid for the displacement of air. The blade is flat and uniform and has a shoulder 4 which is locked into a curved slot 2 in the hub 1, the slot having an enlarged entrance 2A. A resilient sound - absorbing material such as rubber is preferred.
Patent GB-668718-A (GB)
Title: Improvements in and relating to bicycle-stands
IPC: B62H3/08
Filed: 1950-10-23
Abstract: 668,718. Cycle stands. NAAMLOOZE VENNOOTSCHAP BETONFABRIEK DE METEBOOR. Oct. 23, 1950 [Dec. 28, 1949], No. 25778/50. Class 100 (i). A bicycle-stand consists of a block 1 having one or more slots 2 for the reception of a bicycle wheel, the slots having substantially parallel vertical sides and tapered ends 3, the width of the central lower portion of the slot being reduced by means of opposite upwardly tapered ribs 4 extending from the sides of the slot. The ribs 4 are of segmental cross section and are connected to each other at their lower ends by a bridge 5 extending transversely cross the slot. Specifications 425,265 and 501,912 are referred to.
Patent GB-904261-A (GB)
Title: Unsaturated esters of perfluoroalkyl alcohols
IPC: D06M15/277
Filed: 1958-08-11
Abstract: The invention comprises polymers and vulcanized polymers containing recurring units of the formula <FORM:0904261/IV(a)/1> where Rf is a perfluoroalkyl radical having 3-12 carbon atoms, R is hydrogen or methyl and m is 3-12.  They are prepared by polymerization of the acrylic or methacrylic esters Rf (CH2)m OCOCR=CH2 (see Group IV(b)) by bulk, solution or emulsion polymerization using benzoyl peroxide or other free radical polymerization initiators.  Homopolymers and copolymers with for example vinyl chloride, vinyl stearate, styrene and butadiene are referred to.  The polymers are used for rendering fibrous materials hydrophobic and oleophobic (see Group VIII). Specification 904,263 is referred to.ALSO:The invention comprises compounds of the formula Rf(CH2)mOCOCR=CH2, where Rf is a perfluoroalkyl radical having 3-12 carbon atoms, R is hydrogen or methyl, and m is 3-12.  These are prepared by esterification of acrylic or methacrylic acid or reaction of the acid chloride with an appropriate perfluoroalkyl alkanol (see Specification 904,263) and are polymerizable (see Group IV(a)).