baber/WOPTO huggingface dataset:
Patent GB-199880-A (GB)
Title: Improvements in two cycle internal combustion engines for motor cycles and the like
IPC: F02B25/00
Filed: 1922-04-27
Abstract: 199,880. Cross, J. D. April 27, 1922. Two-stroke-cycle engines; cylinders, ports of; exhaust silencers.-In engines having a pump piston B working oppositely to the power piston A to assist in the compression of the charge in the crank case, the exhaust is effected in two parts. The first passes to a silencer d, and the second direct to the atmosphere; the first part issues through a port D before the transfer port a<2> opens and the second is driven out by the incoming charge through a set of ports D<1>.
Patent GB-253325-A (GB)
Title: Improvements in and relating to flushing valve devices and the like
IPC: E03D3/04
Filed: 1925-05-06
Abstract: 253,325. Lewis, T. May 6, 1925. Valves controlled by pilot or relay valves. - Relates to flushing valves which are opened by a reduction of water pressure on one side through the medium of a secondary valve, and are returned by a gradual restoration of pressure. The valve piston 3 moves in a cylinder 4 which is normally filled with water above the piston. When the secondary valve 11 is opened, this water escapes through radial ducts 12 and a by-pass conduit 6 to the discharge pipe, and the pressure of water from the supply pipe 7 raises the piston and opens the flushing valve 2. Water re-enters the cylinder by the vent 5 and gradually restores the pressure on the upper side of the piston. The spindle 11<a> of the secondary valve is secured to a plunger 19, which bears against a spring 20, and packing 17 is provided to form a sealed gland round the spindle. The cap 9 is integral with the valve seating 10, and an extension 21 screwed thereto is apertured to take a tilting lever 24 or a push button for operating the secondary valve. The flushing valve may also be used in connection with a pressure tank, in which case a manually-operated air valve may be provided for replenishing the air in the tank.
Patent GB-242534-A (GB)
Title: Improvements in homogenizing valves
IPC: B01F5/06
Filed: 1925-05-06
Abstract: 242,534. Marks, E. C. R., (Maskinfabriken Rannje). May 6, 1925. Emulsions, making. -A valve for homogenizing cream &c. comprises a smooth conical plug A which fits within a casing B and is provided throughout its length with a supply channel C. Liquid supplied under pressure through the channel C traverses the expansion chamber H and is homogenized by passage between the parts A, B.
Patent GB-494289-A (GB)
Title: Improvements relating to mercury or other conducting-liquid switches
IPC: H01H29/18
Filed: 1937-04-16
Abstract: 494,289. Mercury switches. CIANCHI, A. April 16, 1937, No. 11816/38. Divided out of 494,155 and addition to 453,229. [Class 38 (v)] In a switch of the kind described in the parent Specification having a plunger 3 with a valve 5 and a byepass 6, the electrode 8 is normally out of the mercury. Energization of the solenoid 9 attracts the armature 4 and lowers the plunger. The valve 5 remains closed but mercury then slowly passes through the hole 6 till the levels are the same outside and inside the plunger. The electrode 8 will then engage the mercury and complete a circuit to the electrode 7. On de-energizing the coil 9, the plunger will float upwards, the valve 5 opening to allow a quick movement. In a modification, Figs. 4-6 (not shown), the vessel has a side limb containing a third electrode.
Patent GB-1016266-A (GB)
Title: Improvements in prefabricated building structures
IPC: E04B7/10
Filed: 1963-03-26
Abstract: 1,016,266. Portable buildings. K. TONOUCHI. March 26, 1963 [Sept. 5, 1962; Dec. 1, 1962], No. 11875/63. Heading E1A. A building such as a garage is constructed from a single sheet of metal bent and shaped into a unitary structure having opposed corrugated walls A, A<SP>1</SP> and an arcuate roof of relatively inclined diamond-shaped panels see also Figs. 2 and 3 (not shown). A number of such units may be connected together end to end by a bolted flange connection, see Fig. 8 (not shown). The unit or units are mounted on suitable foundations and provided with end folding doors.
Patent GB-568399-A (GB)
Title: Improvements relating to photographic materials
IPC: G03C1/04
Filed: 1943-07-23
Abstract: Photographic material comprises a support bearing a layer of a sensitive or processed emulsion, preferably a silver halide emulsion, or bichromated colloid, containing as binder polyvinyl alcohol hardened with 2 to 10 per cent of a water soluble condensation product of formaldehyde and melamine calculated as the weight of reaction formaldehyde compared with the weight of polyvinyl alcohol in the emulsion.  The material may be hot ferrotyped.  The binder may be a polyvinyl compound, having a polyvinyl alcohol content sufficient for the compound to be water-soluble, e.g. partially hydrolyzed polyvinyl acetate having a content of 45 per cent or more polyvinyl alcohol.  The hardener may have an appreciable desensitizing action on the emulsion.  The pH of the emulsion should not exceed 7, and the pH of the hardener solution may be adjusted by adding acetic acid.  Dilute hardener solutions are more stable.  In an example, the pH of a polyvinyl alcohol-silver halide emulsion is adjusted to 4.8 and a quantity of hardener solution such that the reacted formaldehyde introduced was 4 per cent by weight of the polyvinyl alcohol. After coating and drying, the emulsion is allowed to stand for 8 days.  In a further example, the pH is adjusted to 5.2, and to form samples, quantities of hardener solution such that the reacted formaldehyde was 0.5, 1.0, 2.0, and 4.0 per cent by weight of the polyvinyl alcohol were added.  In another example, the pH of such samples is adjusted to 3.7, 4.0, 4.3, 4.6, 4.9, and 5.2, and hardener solution added.  Methylolmelamines are obtained by reacting melamine with aqueous formaldehyde solution.  Melamine may be dissolved in aqueous formaldehyde (e.g. of 20 per cent strength) at about 75 to 85 DEG  C. and a pH of 6 to 8; preferably 7.  The molecular ratio of formaldehyde to melamine may be from 1 : 1 to 10 : 1 or higher, and the concentration of the formaldehyde solution from 4 to 40 per cent.  The reaction is stopped by cooling after the melamine has dissolved or shortly afterwards.  Monoto hexa-methylolmelamines are formed.  Specification 560,173 is referred to.
Patent GB-880903-A (GB)
Title: Improvements in or relating to turbines
Inventor: LOYNES ALFRED HERBERT WALTER
IPC: F01D17/16
Filed: 1957-04-15
Abstract: 880,903. Turbines. DOWTY ROTOL Ltd. March 10, 1958 [April 15, 1957], No. 12199/57. Class 110 (3). A ring of pivoted and simultaneously adjustable guide vanes 32, project across a passageway defined by walls 33a, 33b, their free ends engaging a flat ring 46, held in sealing engagement with the blades by means of a spring washer 51, which forms a seal between the wall 33b and the flat ring. The spring washer is frusto-conical in form, one end being received under a lip 50 of the flat ring and the other end as a push-fit in a recess 47 in the wall 33b. The guide vanes have circular root parts 34 mounted in a ring of equally-spaced bores 22 in an annular member 21. Integral with each of the root parts is a stem 36 mounted in bearings and connected to a ring 43 by means of a forked lever 41 dowelled to the stem. The incidence of the guide vanes is adjusted by the ring 43 which may be actuated by a speed governor. Holes 52 in the member 21 communicate the inlet pressure to the chamber 27, and an annular labyrinth packing 29 prevents the leakage of air radially inwards between the rotor and casing. The spring washer may be replaced by more than one ring member retained in grooves in the flat ring 46 and the recess 47, and the inlet pressure communicated to the rear face of the flat ring through passages in the main casing.
Patent GB-248963-A (GB)
Title: Machine for making sand moulds
IPC: B22C15/20
Filed: 1925-05-11
Abstract: 248,963. Beardsley, E. O., and Piper, W. F. May 11, 1925. Moulding-machines. - A sand projector for filling flasks is carried by an arm adapted to be swung horizontally about a pivot, to be moved longitudinally, and preferably to be rocked transversely in order to vary the angle of projection. The projector 39, Fig. 3, is driven by a shaft 41 and motor 42 and fed with sand by a belt 46 driven by enclosed gearing 55 from the shaft 41. All these parts are carried by a hollow arm 37 which is supported by a bearing 64 and roller 80 in arcuate track 81 of a bracket 65 which is suspended by parallel arms 66 from uprights 68 of a bracket 11 which in turn is mounted by a ball bearing 14 on a fixed pillar 10. The flasks 97, Fig. 1, are placed on stands 96 of a table 90 which is supported on balls 91 and rollers 92, and driven by a motor 100 and enclosed gearing 103., Specification 177,131 is referred to.
Patent GB-1467555-A (GB)
Title: Antilock sensor assembly and method of installing same
IPC: B60T8/32
Filed: 1975-03-25
Abstract: 1467555 Tachogenerators WAGNER ELECTRIC CORP 25 March 1975 [17 May 1974] 12321/75 Heading G1N The stator 30 Fig. 1 of a tachogenerator for use with an anti-skid system comprises a non-magnetic mounting ring 32 provided with flat steel members 78, 80 with circumferential teeth 78a, 80a, spaced by a toroidal coil 82 and a plurality of permanent magnets 84. The ring is mounted on a fixed, hollow axle 12 carrying a wheel 14 on a bearing 16. The rotor 28 comprises a ladder 76 of ferrous sheets mounted on the inner surface of the hub cap 22 which is screwed on to the wheel 14 and filled with lubricant. Mechanical assembly details are given.
Patent GB-1255266-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: MARRIOTT ERIC WALTER
IPC: D04B11/04
Filed: 1969-03-08
Abstract: 1,255,266. Knitting-machine. WILLIAM COTTON Ltd. 27 Feb., 1970 [8 March, 1969], No. 12362/69. Heading D1C. The starting course or courses of rib fabric knit on a straight-bar machine is knitted tighter than any of the succeeding plain courses by adjusting the bearded frame needles further than usual away from the presser edge. The sinkers are retracted as the needles move to the presser to avoid straining the yarn. Horizontal movement of the needle bar is controlled by a follower lever (11 figure 6 not shown) bearing on a cam disc (13) on the main shaft (14) and also connected to a quality arm (15) on the quality shaft 16. Also fixed to the shaft is a lever 17 having pivoted on it a lever 18 following cam 19 to continuously raise and lower a manually preset screw 20. The screw is normally ineffective on lever 17, but when a finger 25 is pivoted below it, the quality shaft is turned. The sinkers are retracted as required when the upper cam shaft is shogged so that the catch bar follower lever (33, Figure 8 not shown) engages an additional cam (43) having an appropriate fall.
Patent GB-271073-A (GB)
Title: Process for the production of a binding medium
IPC: C08J11/20
Filed: 1927-05-09
Abstract: 271,073. Tengler, J. May 9, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 12, 1927.] Devulcanizing rubber. - Old rubber is pulverized and heated under pressure with hydrogenated hydrocarbons such as tetrahydronaphthalene whereby sulphur is removed as hydrogen sulphide. The naphthalene formed is removed, for example, by freezing. A solvent such as benzene, benzol, is added and solution obtained by heat and pressure. The mass is vulcanized by heating with sulphur to produce a binder for paints, varnishes, cements and the like.
Patent GB-198656-A (GB)
Title: Liquid-tight coating on porous bodies, particularly applicable on the porous bodies of electrodes of batteries or electrolysing apparatus
IPC: H01M12/06
Filed: 1923-05-08
Abstract: 198,656. Soc. Anon. le Carbone. June 1, 1922, [Convention date]. Waterproofing. - Porous bodies, particularly electrodes of galvanic batteries and electrolytic apparatus, are protected against the entry of liquids by a covering of pectised non-metallic colloid which is applied by immersing the body in a suspension of the colloid of such concentration that the simple immersion suffices to produce the pectised film. A solution of arrowroot heated to 80‹ C. may be employed, the porous body, such as carbon, being immersed in the solution when its temperature has fallen to 70‹ C. The porous body is immersed for about forty-five minutes and then removed and dried. Instead of arrowroot an aqueous solution of silica, fish glue, or an emulsion of potato flour and water may be used. In the latter case glycerine may be added to retard pectisation. Specifications 10177/87, 18494/88, and 196,878, [all in Class 53, Galvanicbatteries], are referred to.
Patent GB-1223702-A (GB)
Title: Electrophotographic materials
Inventor: FOX CHARLES JUNIUS
IPC: G03G5/09
Filed: 1968-03-14
Abstract: 1,223,702. Electrophotographic material. EASTMAN KODAK CO. 14 March, 1968 [20 March, 1968], No. 12469/68. Heading HlK. An electrophotographic material comprises a conductive support or a supported conductive layer bearing at least one photoconductive layer comprising a binder and 10 to 60 wt. per cent of an imide photoconductor of specified formula. The specific embodiments use phthalimides, succinimides, maleimides, dicarboximides, a maleimide-styrene copolymer, a maleimideethylene copolymer, napthalimides and a dibenzoyl diphenylenediamine as photoconductors. The photoconductors are mixed with a polyester and a sensitizer such as Crystal violet, Rhodamine B, 2,4,7-trinitrofluorenone or a pyrylium or thiapyrylium perchlorate or fluoroborate and coated on Al, Zn, Cu or brass plates or foils, a galvanized plate, vapour deposited Al, paper or Al-paper laminate. Multiple photoconductive layers having intermediate insulating layers may be made. The exposed or coated face of the photoconductor may be coated with a conductive layer.
Patent GB-418386-A (GB)
Title: Improvements in vaporizers for internal combustion engines
IPC: F02M31/18
Filed: 1933-04-29
Abstract: 418,386. Vaporizers. HURLBUTT, T. K., 35, Pearson Street, South Shields. April 29, 1933, No. 12474. [Class 7 (iii).] To convert an existing petrol engine to a heavy-oil engine without renewing the exhaust manifold, a vaporizing chamber is sunk into and welded to the exhaust pipe 2. The chamber is closed at the ends and has a division bar 7 extending to near each end to cause the heavy-fuel mixture entering at 5 to flow the whole length of the chamber before being discharged through pipe 8 to the intake manifold 3. The division bar may be hoisted at a point midway between the inlet and outlet ports. Starting is effected by a petrol carburetter connected to the opening 6. Specifications 176,860, 244,378, and 253,904, [all in Class 7 (iii)], are referred to.
Patent GB-1184837-A (GB)
Title: Method of and apparatus for Constructing Substantially Circular Cross Section Bodies by Deposition of Weld Metal
IPC: G05B19/42
Filed: 1967-03-16
Abstract: 1,184,837. Continuous casting; making helically - jointed vessels. MITSUBISHI JUKOGYO K.K. 16 March, 1967 [4 April, 1966], No. 12476/67. Headings B3A and B3F. For making a thick-walled pressure vessel, a hollow body 10 (43) of circular cross-section is formed by progressively depositing molten weld metal from a U-shaped water-cooled mould 22 (38) to form a continuous helical strip with adjacent convolutions joined, the fresh molten metal being deposited on the previously solidified metal to heat treat the latter and being force-cooled by a cooler 23. Vessels such as petroleum and other chemical reactors, nuclear piles and steam generator drums are mentioned. As shown, the body 10 is formed on a vertical table 9 on a rotated horizontal shaft 8 supported from a pedestal 7 moved away progressively from the mould 22 by a wheeled carriage 1. Steel-strip electrodes 14 are heated then fed by way of electric contacts 20 to the mould 22 and melted in deoxidizing and de-sulphurizing slag. The radially inner and outer faces of the deposited convolutions are trimmed by a cutter (24), Fig. 1 (not shown), to determine the inner and outer diameters of the body 10. By relative movement of the carriage 1, the welding apparatus bodies such as corrugated cylinders or hemispherical caps may be produced. Instead of the molten weld metal being produced by an electro-slag process, an inert gas shielded process (MIG or TIG) or a submerged arc process may be used. A MIG welding process is used in apparatus with a horizontal turntable (33) Figs. 3, 4 (not shown), which, apart from rotating, remains stationary while the mould (38), welding nozzles and cutter (42) are progressively raised as the helix forms.
Patent GB-1467003-A (GB)
Title: Siliceous materials
IPC: D21H19/38
Filed: 1973-03-15
Abstract: 1467003 Synthetic siliceous material; pressure sensitive copying paper UNILEVER Ltd 13 March 1974 [15 March 1973] 12514/73 Heading C4A A synthetic siliceous material, for use in paper coating compositions, comprises an amorphous silica/alumina mixture in which the proportion of Al 2 O 3  is between 7À5% and 28% on a dried weight basis, the surface area being in the range 300 to 800 m<SP>2</SP>/g., the mean pore diameter being in the range 40 to 100Š, the pore volume being in the range 0À5 to 1 c.c./g. and the average particle size as measured by a Coulter counter (R.T.M.), being in the range 15 to 3 microns. The material may be provided by milling certain silica/alumina materials which are available as petroleum cracking catalysts to reduce their particle size. The preferred milling technique is water wet milling. The material may contain small amounts of zinc oxide or magnesium oxide. Pressure-sensitive copying paper is coated with a composition comprising the material and a binder, e.g. a butadiene/styrene latex. The material may be used to replace all or part of the silton clay or phenolic resin in conventional coating systems.
Patent GB-289783-A (GB)
Title: Improvements in telephone systems comprising automatic telephone exchanges of different systems
IPC: B24B3/24
Filed: 1928-04-28
Abstract: 289,783. Telefonaktiebolaget L. M. Ericsson. April 30, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Automatic exchange systems.-Wben a call is made from an exchange of the revertive control type to an exchange of the forward impulse type, a device in the outgoing junction sends loop impulses back over one leg to the revertive-type register-controller, which controls the device over the other leg. The system in which the invention is illustrated is the same as that shown in Specification 289,782.
Patent GB-559999-A (GB)
Title: Improved self-inking hand stamp
IPC: B41K1/42
Filed: 1942-09-09
Abstract: 559,999. Hand stamps. MORTIMER, R. Sept. 9, 1942, No. 12698. [Class 100 (ii)] An inking attachment for a hand stamp comprises an ink pad in a container B carried by a frame A pivoted to a bracket D secured by a clip F to the body E of the stamp. A spring on the pivot C of the frame A normally holds the pad in contact with the die. A rack H on a plunger J slidable through a guide K on the bracket D is provided with a finger piece L and engages a gear segment G on the pivot C. Upon pressure being applied to the plunger, the pad is turned to the inoperative position in which it may be held until the die requires reinking. The attachment may be made of metal or a plastic.
Patent GB-1002928-A (GB)
Title: Concrete to mold bond release coating material
IPC: E02D7/30
Filed: 1963-04-01
Abstract: Aqueous coating compositions comprise the reaction product in boiling water of polyvinyl alcohol and lignitic waste material from the sulphite paper process, in the proportions of 5 to 20 parts by weight of alcohol, 5 to 50 parts by weight of lignitic waste per 100 parts by weight of water.  The lignitic waste may be sulphonated lignin or calcium ligno sulphonate. The compositions may be used as release agents for moulds for concrete, e.g. in preparing tubular concrete pile shells in situ.ALSO:Moulds for casting concrete are coated with a release agent comprising the reaction product in boiling water of polyvinyl alcohol and lignitic waste from the sulphite paper process. The lignitic waste may be sulphonated lignin or calcium lignosulphonate.  In an example, the agent is applied to a mandrel which is to be centrally located in a hole in the earth to leave an annular space for the casting of concrete pile shells in situ.
Patent GB-495077-A (GB)
Title: Improvements in and relating to flap gates for closing the entrances and divisions of dry and wet docks
IPC: B63B9/00
Filed: 1937-05-05
Abstract: 495,077. Sluice gates. BOX, E. May 5, 1937, No. 12789. [Class 68 (ii)] In a flap gate for docks, hinged about a horizontal axis, as described in Specifications 13235/08, [Class 68], and 417,076, the lower edge is provided along some parts of its length with cylindrical supporting members and along other parts with arcuate members adapted to resist only horizontal thrusts. Towards the ends of the lower edge of the gate 10, Fig. 4, may be provided a cylindrical member 11 resting in a bearing 13 extending through an angle of more than 180‹. The remainder of the lower edge has an arcuate thrust member 12, Fig. 5, bearing against a support 15. The lower or supporting part 13c, Fig. 6, of the main bearing may be slidable to permit displacement should the gate .be fouled by an obstruction when being closed.
Patent GB-182622-A (GB)
Title: Improvements relating to violins, violon-cellos and similar stringed instruments
IPC: G10D3/04
Filed: 1921-05-04
Abstract: 182,622. Wareham, H. F. J. May 4, 1921. Violin &c. bridges.- The upper edge is divided into a number of separate parts b ; a central aperture d and lateral slots e are provided.
Patent GB-371612-A (GB)
Title: Improvements in television
IPC: H04N7/14
Filed: 1931-05-01
Abstract: 371,612. Television. COMMUNICATION PATENTS, Inc., 60, Broadway, New York, U.S.A. May 1, 1931, No. 12866. Convention date, Oct. 1, 1930. [Classes 39 (i) and 40 (iii).] In a television system, a light source is adapted to analyse an object and coincidently to reconstitute an image, which may be an image of the object analysed. The object is scanned by light passing through a pinhole 4 in a screen 8 from an electric arc moving along an electrode system 6, 7. A light-sensitive cell 25, or a number of cells in parallel, receives light reflected from the object and the picture currents are amplified at 26, 27 and transmitted from an aerial 33. An aerial 34 receives picture signals which are amplified at 39 and superimposed on the scanning arc. The circuits 27, 39 contain transformers 30, 41 whose third windings are connected inversely in parallel to an oscillator 43 so that the thermionic valves 29, 40 are alternately biased to an inoperative condition. The frequency of alternation is sufficiently high to produce apparent continuity of the received image. The light source is thus alternately modulated by the incoming picture signals while the transmitting apparatus is inoperative, and of constant intensity while the receiving apparatus is inoperative. For monitoring purposes the switch 48 may connect the circuit, through a delay device 47, with the electric arc so that an image of the object being analysed is reconstituted. The screen 8 is of translucent material, such as quartz, so that an observer may see the reconstituted image and that the analysing beam projected through the pinhole 4 shall be substantially the only illuminating beam while the transmitting apparatus is modulated. The system is synchronized as described in Specifications 360,470 and 360,941.
Patent GB-541946-A (GB)
Title: A dryer of long or short grass or other fodder
IPC: F26B21/00
Filed: 1940-08-13
Abstract: 541,946. Drying fodder. AINSWORTH, C. M. Aug. 13, 1940, No. 12914. [Class 34 (ii)] Grass or other fodder is dried in a chamber A having a perforated bottom C by hot gases and air drawn from a furnace by a fan D and supplied to a passage B beneath the chamber. The material is supported upon a perforated plate or screen c<1> arranged above the perforated bottom. Several chambers may be supplied in turn with hot gases from a distributing duct connected to the furnace.