baber/WOPTO huggingface dataset:
Patent GB-1183807-A (GB)
Title: Improvements in Casting Machine.
IPC: B29C39/00
Filed: 1969-02-03
Abstract: 1,183,807. Plate casting apparatus. REICHHOLD CHEMICALS Inc. 3 Feb., 1969 [27 March, 1968], No. 5701/69. Heading B5A. [Also in Division B6] A machine for casting plates e.g. printing plates from liquid thermosetting plastics material comprises a heated lower platen 3, a ring 6 for clamping a matrix to this platen and to provide a coffer dam for containing liquid plastics material, a heated upper platen 2 hinged at its rear end to the lower platen, means for closing the platens by movement about the hinge 5, a cutter bar 8 positioned on the rear of the lower face of the upper platen and second and third cutter bars 9 and 10 along the sides of the lower face of the upper platen, said bars engaging the matrix within the area bounded by the ring 6 when the platens are closed so that flask is cut off from a plate east therein. Deflashing before the plastics material has set prevents cracks which form in the thicker mass of the flask from extending into the moulding. The cutter bars preferably each comprise a knife edge and may be chrome plated to facilitate release from the plastics material.
Patent GB-741882-A (GB)
Title: Bored concrete piles
IPC: E02D15/04
Filed: 1953-03-02
Abstract: 741,882. Piles. SOIL MECHANICS, Ltd., and LEONARD, M. W. May 25,1954 [March 2, 1953], No. 5773/53. Class 68(2) A cap for use in making bored cast-insitu concrete piles comprising a lower hopper 1, attached by fitting 8 to the end of a casing tube 9, having a conical valve 2 whereby concrete can be discharged from the hopper 1 into the tube 9, an upper hopper 4 attached to the lower one 1, and having a conical valve 5 so that concrete can be discharged from the upper hopper 4 into the lower hopper 1 and an arrangement whereby compressed air can be admitted to the tube 9 and to the hopper 1. After the tube 9 has been inserted into the ground the fitting 8 is screwed thereon, the fitting 8 being in two parts bolted together so that it may readily be adapted for attachment to different sizes of tube 9. A source of compressed air is connected topipe 17 controlled by cock 14 and may pass via cock 13 and inlet 12 to hopper 1 or via excess pressure valve 16 and inlet 10 to the fitting 8. A connection 11 on fitting 8 has a gland through which a hose 18 passes to the bottom of tube 9. A compressed air supply is connected through cock 20 to the hose 18 and any fine material in the tube 9 is agitated into suspension in the water. The compressed air supply is disconnected and cock 20 left open whilst cock 13 is closed and cock 14 opened. Compressed air then passes into tube 9 and expels the water and suspended material out through hose 18. Cock 20 is next closed and a cock, connected to a connection 15 communicating with the exterior, is opened. The upper hopper 4 is charged with concrete and subsequently lever 6 is operated to open valve 5 and discharge the concrete into hopper 1. Cock 13 is now opened and the cock connected to connection 15 is closed so that hopper 1 is now at the same pressure as tube 9. Conical valve 2 is opened by lever 3 so that concrete passes through grid 22 into the tube 9. After closing valve 2, cock 3 is closed, connection 15 is opened to the atmosphere and the cycle recommenced.
Patent GB-127340-A (GB)
Title: Improvements in Ignition Plugs for Grenades.
Inventor: HIRSCH ALFRED JACQUES
IPC: F42C14/02
Filed: 1917-04-25
Abstract: 127,340. Hirsch, A. J. Aug. 4, 1916, [Convention date]. Addition to 127,333. Projectile fuses. - Re. lates to grenade-fuse igniting devices of the kind described in the parent Specification, and consists in modifications wherein the expulsion of the disk normally locking the striker and closing the communication of the fuse with the atmosphere is effected by a spring, so as to ensure the functioning of the striker spring, which in this case acts directly on one or more laterally-arranged caps. In the construction shown in Fig. 1, the spring h<3>, which expels the disk k when the lever i' is released, is in one with the striker spring h<2>, which is held cooked by engagement with a projection r on the disk. In another arrangement, an independent spring acts upon the disk k, and the external safety lever i is attached to the disk instead of merely pressing resiliently on it.
Patent GB-647431-A (GB)
Title: Improvements in or relating to mountings for piezo-electric crystals
IPC: H03H9/05
Filed: 1948-02-26
Abstract: 647,431. Piezo-electric crystal mountings. BIRT, A. W., RICHARDSON, J. W., and PIEZO CRYSTALS, Ltd. Feb. 26, 1948, No. 5849. [Class 40 (viii)] A mounting for a plate-like piezo-electric crystal comprises an open rectangular frame which is made of insulating material and has spaced apart, within its thickness two abutments receiving between them a compression spring, a crystal-plate, and an interposed contact-plate which engages the crystal-plate at its nodes. As shown in Figs. 1 and 2 each crystal 10 is provided with metallic electrodes 11, 12 on its major surfaces and is clamped between two square metallic contact plates 13 having offset tongues 14 at each corner to engage the corners of the crystal. The crystal and contact plates are inserted into a square frame 15 of insulating material which is open at one transverse face but at the opposite face has an inturned flange 16 against which one of the contact plates abuts a pair of holes 17 being provided in opposite walls for conductors to be led to the contact plates 13. A pair of slots 18 are situated in the remaining two walls of the frame, which receive the ends of a leaf-spring 19 engaging one of the contact-plates 13 so that the crystal is firmly clamped. The frame 15 is provided with axial holes 20 at each corner and a projection 21 adjacent the flange 16, so that by threading lengths of studding through the holes 20 a number of crystal-plates, each mounted in its separate frame 15, may be mounted as a stack, a cover-plate being provided at each end.
Patent GB-404484-A (GB)
Title: Pneumatic shock absorber with preliminary compression, especially for motor vehicles
IPC: F16F9/28
Filed: 1933-02-27
Abstract: 404,484. Shock-absorbers. KUNZE, E. L., 27, Reichsstrasse, Chemnitz, Germany. Feb. 27, 1933, No. 5937. Convention date, March 4, 1932. [Class 108 (iii).] A shock-absorber particularly for use on motor vehicles includes a piston e reciprocated in a cylinder c by a lever m and a piston f for supplying air to the cylinder c reciprocated in a cylinder d by a lever p, q operated by the lever m. In one form, the air is supplied to the cylinder c which is provided with a relief valve s through a non-return valve h. In a modification, a link i between the piston e and the lever m, and a link o between the lever p and the piston f, are omitted, a compression spring being interposed under the piston f. The cylinder d may be provided with an air-inlet g, alternatively, an air-inlet fitted with a non-return valve is provided in the piston f.
Patent GB-803341-A (GB)
Title: Improvements in saturable core reactance devices
Inventor: BELSEY FREDERICK HAROLD
IPC: H03F9/02
Filed: 1954-03-01
Abstract: 803,341. Magnetic amplifiers. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. March 1, 1955 [March 1, 1954], No. 5952/54. Addition to 659,762. Class 40 (9). A voltage derived from the direct current output circuit is introduced as a negative feedback into the control circuit of a magnetic amplifier described in the parent Specification. The negative feed-back enables a linear characteristic a high amplification and a low time constant to be obtained together. Rectifiers 6 in the circuits of pairs of cores 1A, 2A and 1B, 2B are connected in opposition to a load resistor 7 across which an output voltage may be derived. The control windings 15 are connected in series with limiting resistors 2 to tapping points 17, 18 on the load resistor 7 so that the voltage in the control winding is the difference between the voltage across terminals 16, 19 and the voltage between the points 17, 18. The windings 9 and 11 are equal so that there are more ampere-turns in the boost windings 9 and 10 together than in the back windings 11 when the amplifier is balanced and has no output. Windings 12 are bias windings.
Patent GB-581825-A (GB)
Title: Improvements in and relating to liquid level control systems
IPC: G05D9/12
Filed: 1944-03-31
Abstract: 581,825. Non-metal resistances. BRITISH THOMSONHOUSTON CO., Ltd. March 31, 1944, No. 5971. Convention date, April 2, 1943. [Class 37] [Also in Group XXXV] A resistance detector unit for a liquid level control system [see Group XXXV] consists of a negative temperature coefficient resistance 22 of sintered oxide, such as manganese oxide and nickel oxide with a binder fixed between two non-corrosive metal plates 23 and 24.
Patent GB-194533-A (GB)
Title: Improvements in and relating to cigar banding machines
IPC: A24D1/16
Filed: 1922-03-01
Abstract: 194,533. White, A. E., (International Banding Machine Co.). March 1, 1922. Coating-machines. - Adhesive is applied to bands for cigars by an adhesive tape which picks the bands,off a pile and presents them to the .applying device. The tape 106 passes over a damping-roller 105 and a block 112 carried adjustably on a longitudinally-reciprocating rod 92, which brings the block 112 into position to form an abutment for the pile of bands 64, which is carried on a vertically-sliding platform. As the rod 92 returns, the tape 106 moves on, carrying the topmost band with it. A spring finger 130 presses on the tape as the rod 92 moves to the left thus causing the tape to be drawn out, but is raised by a cam 123 as the rod returns, allowing the used tape to pass on.
Patent GB-105946-A (GB)
Title: Improvements connected with Electrical Resistances.
Inventor: CURTIS ARTHUR HERBERT
IPC: H01C3/00
Filed: 1916-04-28
Abstract: 105,946. Curtis, A. H. April 28, 1916. Resistances.-A casing for a number of coiled resistances consists of a metal sheet 1 bent to form cylindrical chambers 2 separated by necks 4. The sheet 1 may be folded into a cylindrical form with the chambers on the inside or outside. The necks 4 may be sufficiently long to allow of bolts being passed through them to tighten the casing upon the resistances. Fig. 5 shows a modification in which two plates 6, each provided with semi-cylindrical recesses, are clamped together. The resistances are separated from the casings by mica layers and may be wound on insulated metal rods or porcelain, glass, or other tubes. The internal support may however be dispensed with. Tappings may be taken through the necks 4 or through the centre of the casings, and the chambers-may be provided with end caps.
Patent GB-105948-A (GB)
Title: Improvements in and relating to Flying Machines.
Inventor: HOLROYD THOMAS HOWARD
IPC: B64C23/00
Filed: 1916-04-29
Abstract: 105,948. Holroyd, T. H. April 29, 1916. Aerial machines without aerostats; propelling; steering.-A flying-machine comprises a body a having gilding planes b mounted on longitudinal pivots d, a number of lifting-screws e arranged beneath the planes, propellers h mounted at both ends of the machine above and below the centre line, and elevating and depressing planes i. The planes b serve to carry the main weight of the machine and can be moved to any angle by control ropes or wires. The lifting-screws, propellers, &c. may be operated by independent turbines or electric motors n supplied with power from power generators m.
Patent GB-572920-A (GB)
Title: Improvements relating to pipe lines for the conveyance of liquids
IPC: F16L11/10
Filed: 1942-05-07
Abstract: 572,920. Flexible pipes. ANGLO-IRANIAN OIL CO., Ltd., and HARTLEY, A. C. May 7, 1942, No. 6193. [Class 99 (ii)] A flexible conduit for conveying fuel or, other liquid under pressure for long distances comprises an inner tube a of lead, copper, or other ductile metal surrounded by a covering through which the ductile metal cannot be extruded by the liquid pressure, and comprising helically wound tape c of steel or other hightensile material. There may be several layers of tape c with staggered gaps d between the coils. Unwinding of the tapes is resisted by an armouring f composed of steel &c. wires wound at a very steep pitch and in opposite hand to the tapes. Paper &c. b impregnated with bitumen may be wound on the inner tube before the tapes, and strips of tarred jute e compounded with bitumen may be wound between the tapes, and the wires f, similar tarred jute winding g being applied on the outside. Specification 572,932 is referred to.
Patent GB-179718-A (GB)
Title: Improvements in or relating to punching and perforating mechanisms
IPC: B26D7/18
Filed: 1921-02-25
Abstract: 179,718. Timson, A. R. Feb. 25, 1921. Punching-apparatus on revolving drum. - The punches are given a subsequent movement into the dies in order to eject the "pips." The invention as applied to a machine for perforating the edge of a web is shown in Fig. 2, in which a slotted rotating carrier 5 on a shaft carries longitudinal bars 3, oscillated by rollers 10 engaging a fixed cam 12, bearing a punch bracket 9 and a die-plate 2. Punches 1 carried in slides 7 are oscillated within the brackets 9 by projections 14 which engage cam-plates 13 adjustably fixed on bars 15. In operation, the web to be perforated travels over a roller 16 and between the punches 1 and die-plates 2 carried by the rotating carrier 5. The web is perforated by the punch in the position A, and the punch and die-plate are then moved to the edge of the web by the cam 12, where the " pip " is ejected by a subsequent movement of the punch into the die-plate caused by another fixed cam 13 in position B. The punches and their carrier 5 and the cams 11 are adjustable on the shaft 6 and locked in position by nuts 18.
Patent GB-889799-A (GB)
Title: A rainwater gutter
IPC: E04D13/064
Filed: 1958-02-27
Abstract: 889,799. Rainwater gutters. CONCRETE UTILITIES Ltd., and MARQUES, C.V.L. May 27, 1959 [Feb. 27, 1958], No. 6460/58. Class 20(4) A rainwater gutter of channel section is provided with one wall a higher than the other wall e, the higher wall being provided with overflow ducts c which open into the channel below the level of the top of the lower wall. The gutter may be provided with ends d whose height lies between the lower wall and the bottom of the openings of the ducts c. The gutter is fitted to a building with the wall a outermost and can be used as a lintel over a doorway.
Patent GB-303055-A (GB)
Title: Process of and apparatus for calcining zinc blende and the like
IPC: C22B19/02
Filed: 1928-03-01
Abstract: 303,055. Balz-Erzrostung Ges., (formerly Erzrostung Ges.). Dec. 27, 1927, [Convention date]. Ore-roasting furnaces.-In the roasting of zinc blende and other sulphur containing ores in a superposed hearth furnace, through which the air moves in counter-current to the ore, the air is given such direction and velocity that it penetrates the ore layers completely, and at the same time cooling is applied to the principal reaction zone and heat to the zone of subsequent desulphuration. Baffles screens, etc., are provided to direct the roasting air when the chambers are low, or fans in the case of higher chambers, In the six-hearth furnace shown each hearth is formed with a cooling space 4 connected on the one hand to an air supply conduit 6 by a valve-controlled pipe 5, and on the other to a collector 8, from which the heated air can be passed either to the atmosphere or to a pipe 11 for delivery to the furnace. The spaces 4 may be connected in series instead of in parallel, and arrangements may be provided by which hot instead of cold air may be passed through them. The partition 14 separating the spaces 4 from the ore chambers, and forming the roof of the latter, may be made of metal plates.
Patent GB-1389006-A (GB)
Title: Production of articles having a plurality of sides and a base
IPC: A47B96/20
Filed: 1971-03-11
Abstract: 1389006 Making wooden articles; making open containers COMMUNICATIONS PATENTS Ltd 10 March 1972 [11 March 1971] 6538/71 Headings B5L and B5D [Also in Divisions B8 and H3]  A method of making an article comprising a base and a plurality of sides comprises cutting in a laminated sheet including a layer of chipboard, across the full extent thereof at least three veegrooves so as to establish between the grooves parts of the sheet which are destined to form said base and said sides, removing from the sheet those parts if any which are not required to form the article, forming the article by folding those parts of the sheet which are to form the sides on the line of the vee-grooves which separate them from that part which is to form the base and securing the sides in position after folding. A described, a television receiver cabinet is formed by cutting into a sheet of wood-veneered chipboard two pairs of vee-grooves 5, 6, and 7, 8. Apertures 1-4 are cut in the central portion of the sheet for receiving parts of the television, and the areas 14-17 of the sheet are cut or sawn away. Adhesive is applied to the walls of the remaining vee-grooves and the sides 11-14 are folded about the grooves to form the cabinet. Strengthening blocks may be added if desired.  The sheet of material to be folded may consist of a chipboard layer and either a flexible or a non-flexible layer. In the former case the veegrooves lie in the chipboard layer only, but in the latter case they penetrate the non-flexible layer also. The grooves may have rectangular channels at their bottoms so that the material forms a radiused surface on folding. In another embodiment, for making a tank, the laminated sheet comprises a fluid-proof layer. The fluid-proof layer forms the inside of the tank after folding and the adhesive used is selected to react with this layer to form a unitary inner lining for the tank.
Patent GB-1458551-A (GB)
Title: Pulse eddy current testing apparatus
IPC: G01N27/90
Filed: 1974-02-13
Abstract: 1458551 Eddy-current testing systems MAGNETIC ANALYSIS CORP 13 Feb 1974 [15 Feb 1973] 6551/74 Heading G1N The invention relates to the pulse-eddy-current testing system of Specification 1405686 but the claims feature the detector circuitry. An alternative arrangement for generating gating pulses for the phase-sensitive detectors is described, which comprises a push-pull-type phase-splitter circuit driven from the pulses applied to the test coil.
Patent GB-290148-A (GB)
Title: Improvements in bearings of boxes for holding rolls of fabric
IPC: B65H75/16
Filed: 1927-01-29
Abstract: 290,148. Barnes, W. T. Jan. 29, 1927. Divided on 289,923. Roll holders.-A bearing for a box holding a roll of fabric consists of one-piece sheet metal stamping a formed with guide ribs b, b<1> standing out from the body and a pocketlike embossing c, the portion e of the stamping being bent outwards so that the end of the spindle can be sprung past it and rest on the pocket, or the flexibility of the box end may be utilized for inserting the spindle. Specification 289.923 is referred to.
Patent GB-730425-A (GB)
Title: Improvements in the production of acrylonitrile
Filed: 1953-03-11
Abstract: Acrylonitrile is produced from hydrogen cyanide and gas mixtures containing acetylene and at least 10 per cent by volume of carbon monoxide by leading the reactants through solutions of cuprous salts of strong inorganic acids, preferably containing ammonium salts and/or alkali metal salts and strong inorganic acids, the solutions also containing salts of rare earth metals. The catalyst may be dissolved in water or in inert organic solvents such as glycols, formamide and acetamide and the reaction may be carried out at superatmospheric pressure.  Ceric or lanthanum salts are suitable rare earth metal salts.  In the examples, hydrogen cyanide and a mixture of acetylene, hydrogen, carbon monoxide, carbon dioxide, methane and nitrogen are passed over an aqueous catalyst solution containing (4) cuprous chloride, ammonium chloride, sodium chloride, hydrochloric acid and ceric chloride, and (b) cuprous chloride, lanthanum acetate, ammonium chloride, sodium chloride and hydrochloric acid, to give acrylonitrile.ALSO:Catalysts, for the production of acrylonitrile from hydrogen cyanide and gas mixtures containing acetylene and carbon monoxide, consist of solutions of cuprous salts containing salts of rare earth metals and preferably also containing ammonium salts and/or alkali metal salts and strong inorganic acids.  Suitable solvents for the catalysts are, for example, water, glycols, formamide and acetamide.  In the examples hydrogen cyanide and gas mixtures containing acetylene and carbon monoxide react to give acrylonitrile in the presence of aqueous solutions of (a) cuprous chloride, ammonium chloride, sodium chloride, hydrochloric acid and ceric chloride; and (b) cuprous chloride, lanthanum acetate, ammonium chloride, sodium chloride and hydrochloric acid.
Patent GB-476658-A (GB)
Title: Improvements in or relating to the production of titanium pigments
IPC: C01G23/08
Filed: 1936-03-05
Abstract: Titanium dioxide or hydrated titanium compounds or composite pigments comprising titanium dioxide mixed with extenders such as barium or calcium sulphates, or titanates &c., are calcined in the presence of a fluorine, compound which will not volatilize during the early stages of calcination.  Suitable fluorine compounds are soluble or insoluble fluorides, oxyfluorides and fluortitanates. The fluorine compound is added to the slurry of the titanium compound in amount such that the fluorine content is less than 5 per cent of the titanium reckoned as TiO2.  If a volatile fluorine compound, e.g. hydrofluoric acid or ammonium fluoride, is used, time is allowed prior to calcination for the titanium or other material present to react with and fix the fluorine. Examples relate to the addition of hydrofluoric acid, titanium fluoride solution, fluortitanic acid, calcium, zinc, sodium, potassium and ammonium fluorides and magnesium and barium fluortitanates.  Reference is also made to the use of titanium oxyfluoride.  A small quantity of potassium permanganate may also be added to the mixture to be calcined to yield a whiter product. Calcination temperatures of from 850 to 1050 DEG  C. are specified. Where soluble fluorine compounds are added to the slurry, it should be calcined without filtering.  If the fluorine is added in combination with an element whose oxide or sulphate is insoluble, no washing of the calcined product is necessary.  For the preparation of the titanium oxide slurry, sulphate or chloride solutions prepared from ilmenite may be employed.  Solutions prepared by heating rutile with sodium hydrate to 280--650 DEG  C., removing the sodium by leaching and dissolving the residue of titanium oxide in 50 per cent sulphuric acid may also be employed.
Patent GB-540417-A (GB)
Title: Improved liquid flow indicator
IPC: G01F1/28
Filed: 1940-04-13
Abstract: 540,417. Flow indicator. LIGHT PRODUCTION CO., Ltd., and HUTCHINGS, P. J. April 13, 1940, No. 6732. [Class 69 (i)] A liquid-flow indicator comprises a body a, Figs. 2 and 3, of substantially rectangular section adapted for insertion in the flow line and containing an unbalanced vane c connected by a spindle e to a weight g, a spring or other stabilizing means in a separate chamber d; a further chamber h contains an indicator disc &c. i with coloured parts adapted to show through windows in a metal &c. disc l and driven directly from the spindle e or by co-operating magnet o and armature p, which may be interchanged. When flow ceases, an audible or visual alarm may be operated, as by a magnet or armature on the weight acting through an armature or magnet to actuate a pivoted mercury switch, or by a pin s Fig. 5, rocking a pivoted, bifurcated arm r<SP>1</SP> carrying a mercury switch r. Specification 512,330 is referred to.