baber/WOPTO huggingface dataset:
Patent GB-1174037-A (GB)
Title: Method and Apparatus for Measuring the Fullness of Trawl-Nets
IPC: G01F17/00
Filed: 1968-06-21
Abstract: 1,174,037. Trawling. FRIED. KRUPP G.m.b.H. 21 June, 1968 [24 June, 1967], No. 29757/68. Heading A1A. [Also in Divisions Gl and G4] ' The degree of filling of a trawl net is indicated from a measure of the rate of flow of water at a specific point in its interior. The trawl net is provided with seven flow meters arranged down the centre of the net, 1, 3, 5, 7, Fig. 1, to sense axial water flow rate, and at the side of the net, 2, 4, 6, to sense water flow perpendicular to the side of the net. Turbine flowmeters, Fig 3 (not shown), may be used, the frequency or amplitude of whose output signal is indicative of flow rate. Alternatively the flowmeters may be d.c. generators, or differential pressure flowmeters, or the speed of a fan wheel may be transmitted mechanically by flexible shafts. As the fish in the net comes level with a central flow meter its output drops from a constant level indicative of the overall flow rate to zero as the fish cover it. Conversely as the level of fish approaches a side flowmeter its output increases from a low level to a maximum when the fish is level with it to a minimum when it is covered. The flowmeters are connected sequentially via switch 14 to a circuit sensitive to an intermediate voltage or frequency, such that when the signal from a flow meter is above this level a respective lamp (Li)-(L?), Fig. 4 (not shown) is lit and below this level the lamp is extinguished. To correct for changes of overall flow rate the outputs from meters 1-6 may be subtracted from that of meter 7 which senses overall flow rate.
Patent GB-250633-A (GB)
Title: Improvements in and connected with the construction of buildings
IPC: E04B2/42
Filed: 1924-12-12
Abstract: 250,633. McDonald, J. Dec. 12, 1924. Walls are formed of blocks A, each having a central cavity A<1> and a vertical groove A<2> at each end for the reception of liquid mortar, and are provided with an inner lining B of wood pulp secured either directly by means of an adhesive and damp-proof material, as in Fig. 5, or to wood standards C fixed to the inner side of the wall, as in Fig. 3.
Patent GB-223427-A (GB)
Title: Improvements in grease guns
IPC: F16N3/12
Filed: 1923-11-27
Abstract: 223,427. Elliot, G. Nov. 27, 1923. Piston apparatus for discharging receptacles. -The cylinder 1 of a grease gun is provided with a liner 4 which may be removed and filled by plunging it in the grease. The end of the liner has a strip 6 fcr severing the grease in the liner from t'he main supply. One or more openings 5 are provided for the escape of air during filling, and the liner has a ring 8 with a bayonet joint 10 for fixing it to the cylinder 1. Specifications 3841/10, 25857/11, 8294/13, and 137,763 are referred to.
Patent GB-1268153-A (GB)
Title: Method of preparing 2,3-dibromofuran
IPC: C07D307/56
Filed: 1970-06-19
Abstract: 1,268,153. 2,3-Dibromofuran. SOC. DE RECHERCHES INDUSTRIELLES. 19 June, 1970 [23 June, 1969], No. 29956/70. Heading C2C. 2,3-Dibromofuran is prepared by bromination of an ester of furoic acid, followed by saponification and decarboxylation. Decarboxylation is preferably effected by copper powder in quinoline at elevated temperatures. 2-Bromo-furan and 2,3,4-tribromofuran are obtained as by-products. Furoic acid ester starting materials are obtained by oxidation of furfural with potassium permanganate, followed by esterification. 3-Bromo-furan is prepared from 2,3-dibromofuran by reaction with methyl lithium.
Patent GB-966709-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B17/00
Filed: 1962-08-03
Abstract: <PICT:0966709/C1/1> <PICT:0966709/C1/2> In a method of manufacturing flat glass in which the glass contacts a molten metal, the molten metal is caused to well upwardly underneath the glass so that a continuously renewed metal surface is presented to the glass.  In a preferred embodiment in which the molten metal in contact with the glass has all the characteristics of that described in Specification 769,692, a ribbon of glass 30, 36 is floated on a bath 12 of molten tin or tin alloy and withdrawn through an outlet 23, the molten metal 12 being caused to flow around a loop 31, 32, 33 at a point near where the glass ribbon is withdrawn from the bath, the molten metal welling upwardly (see arrows 35, Fig. 2), under the glass ribbon and then flowing transversely of the direction of movement of the ribbon. By this means any contaminants in the molten metal are removed, and a fresh surface continuously presented to the glass ribbon.
Patent GB-831718-A (GB)
Title: Anchoring device for a plough installation in semi-steep measures in coal mining
IPC: E21C29/08
Filed: 1958-09-19
Abstract: 831,718. Mineral-mining apparatus. GEWERKSCHAFT EISENHUTTE WESTFALIA. Sept. 19, 1958 [Oct. 3, 1957], No. 30100/58. Class 68(1) The upper end of the cable haulage 23 of a plough installation in a semi-steep measure is secured to a carriage 25 that can be propelled along a beam 10 anchored in an upper roadway and extending at right angles to the face. The beam 10 in turn can be advanced along the or the parallel runs 12, 16 of a tensioned chain also in the roadway, at right angles to the face and of at least twice the length of the beam. During operation of the plough installation the beam is anchored by the setting of jacks 19. 20 at the upper ends of floor-engaging skids 17, 18 coupled to the beam. At the end of the advance of the carriage 25 along the beam 10 the carriage is lifted up from the beam 10 by attaching and actuating a jack 27 secured to a roof-supporting jack 28. The jacks 19, 20 are released and the beam advanced along the cable. When the beam has been moved the jacks 19, 20 are set, the beam levelled by jacks 21, 22 between the skids and the beam, and the carriage 10 lowered on to the beam for a further cycle of operations in the mining of the face. The cable 12, which passes through one or more passageways in the beam is then repositioned.
Patent GB-160894-A (GB)
Title: Improvements in induction motors
IPC: H02P1/32
Filed: 1919-12-02
Abstract: 160,894. C÷lner Elektromotorenfabrik J. Bruncken. Dec. 2, 1919. Addition to 136,156. Drawings to Specification. Alternating-current motors.-Induction motors of the kind described in the parent Specification are adapted for operation on supply circuits of lower voltage by suitably changing the connections of the stator windings at starting so as to increase the flux step by step. In the first step, the two stator windings are connected in series in mesh; in the second step, they are connected in parallel in star; in the third, they are connected in parallel, one in star and the other in mesh; in the fourth, they are connected in parallel, both in mesh; in the fifth and last step, they are again connected in parallel, but the one field is reversed relatively to the other.
Patent GB-918853-A (GB)
Title: Process and apparatus for producing smeltable briquettes consisting of ore and a fuel carbonizable at low temperature
IPC: C22B1/245
Filed: 1959-09-03
Abstract: 918,853. Briquetting. DEMAG-HUMBOLDTNIEDERSCHACHTOFEN G.m.b.H., and OFU OFENBAU-UNIONSGESELLSCHAFT. Sept. 3, 1959 [Sept. 3, 1958], No. 30142/59. Class 82 (1). [Also in Group XII] In a process for producing smeltable briquettes moulded from ore and fuel suitable for low-temperature carbonization, and containing, if required, a binder and a flux or fluxes, the briquettes are conveyed on a conveyer 4 through a furnace, are preheated in a primary chamber 1 thereof, subjected to a low temperature carbonization in a main chamber 2 heated by fuel burners 9, 10 (preferably to below the ignition temperature of the fuel) and cooled in a chamber 3 before leaving the furnace, and a reducing temperature is maintained in all the chambers by oxygen-poor combustion of the fuel supplied to the chamber 2. The waste gases and carbonization vapours from the main chamber 2 are withdrawn from the primary chamber 1 near where the briquettes enter, a part thereof being fed through the burners 9, 10 with the fuel and air or oxygen. The carbonization is preferably done under a pressure slightly in excess of atmospheric pressure. The gases and vapours produced in the furnace, the chamber 2 of which comprises two parts 7, 8, have access to the briquettes on the conveyer 4 and the sum of the direct and indirect radiation on to the briquettes is substantially constant over the width of the conveyer 4, which is guided on rails 18, 19 on beams 28 and is made of boxes 20. A conduit 13 leads from the chamber 1 near the entry opening to the chamber 2, a fan 14 in the conduit 13 withdrawing gas from the chamber 1 for supply to the chamber 2, through the burners 9, 10 or through mouths surrounding them. In a modified furnace the conveyer is of an endless form having two parallel runs moving in a horizontal plane and is enclosed by the furnace except for loading and unloading stations which may be adjacent each other in the region of one of the runs, the main chamber being arranged in the region of the other run. The conveyer belt is made of plates, superposed at their ends and connected by a chain, and is held at each side by a horizontal guide rail.
Patent GB-243542-A (GB)
Title: Improvements in furniture fittings
IPC: A47B91/06
Filed: 1924-12-15
Abstract: 243,542. Beaumont, W. W. Dec. 15, 1924. Ferrules or tips.-A dome-shaped fitting for the legs of chairs, tables, and other articles of furniture is made in three parts, A, B, C, the cup-shaped part A being secured by a screw &c. to the chair leg and the knob-like part B, which contains a flat metal plate or disc C, forced over the cup A so that the circumferential edge or lip of the cup is spread or expanded and caused to enter the annulus between the piece C and the in-turned edge of the dome B. The dome B is preferably made of phosphor bronze or similar non-ferrous metal, the disc C of the same or of a brass or other metal of suitable hardness, and the cup A of a suitable brass such as cartridge metal or the like. The fitting may be applied to boxes, caskets, the bases of wooden clock-cases, &c.
Patent GB-363745-A (GB)
Title: Improvements in and relating to inking mechanism for rotary printing presses
IPC: B41F31/06
Filed: 1930-10-08
Abstract: 363,745. Printing-machines. CRABTREE & SONS, Ltd., R. W., Victoria Works, Water Lane, Leeds, and PHYTHIAN, T. E., 25, Headingley Mount, Headingley, both in Leeds. Oct. 8, 1930, No. 30176. [Class 100 (ii).] In inking-apparatus for rotary printing machines, means are provided for. moving the fountain roller a<1> or the fountain a and the roller a<1> to and from the position in which the roller co-operates with an ink drum, in coincidence with the movement of the inking rollers towards and away from the ink drums. The fountain a is pivoted at b and supported at its opposite side by a rod c connected to an eccentric d on the shaft e which operates the printing rollers. Movement of the lever f raises the inking rollers and lowers the fountain a. Alternatively the rod c may be connected to the fountain roller a<1> which is slidable relatively to the fountain a. Specification 331,570, [Class 100 (ii), Printing processes &c.], is referred to.
Patent GB-727826-A (GB)
Title: Manufacture of anthraquinone vat dyestuffs
IPC: C09B1/48
Filed: 1952-11-28
Abstract: The invention comprises (1) linear tetranthrimides in which the two end residues are anthraquinone-1(N).2-aryl-acridone residues linked to the -NH- bridges in a -position; and the two central anthraquinone nuclei are linked to the -NH- bridges in 1,4-position; and (2) carbazoles obtainable therefrom.  The products are made by forming -NH-linkages in the usual way from halogen and amino compounds, viz. from two dianthrimides or from a trianthrimide and an anthraquinone compound, or from two anthraquinone-aryl acridone molecules containing an a -amino or a -halogen atom with a dihalogen or diamino dianthrimide.  The tetranthrimides may be carbazolized in the usual way.  The products dye or print wool, silk, cotton, linen, artificial silk, regenerated cellulose.  In examples 4.41-dibromo-1.11-dianthrimide is condensed with two mols. of (1) 4-amino - 2.1(N)11.21(N) - anthraquinone - benzacridone; (2) 4-amino-1(N)2.11.21(N)-anthraquinone - naphthacridone; (3) 4 - amino-1(N).2.21(N) .11-31-phenoxy-anthraquinone-benzacridone; (4) 51 - chloro - 4 - amino - 1(N).2.21 (N).11-anthraquinone-benzacridone or the corresponding 31.51-dichloro body; (5) 5- or 8-amino - 1(N).2.21(N) : 11 - anthraquinone benzacridone, followed by carbazolization with aluminium chloride, mixed with sodium chloride or b - and g -picoline.
Patent GB-731654-A (GB)
Title: Improvements in apparatus for heating powdered or granular materials by means of gases
Inventor: SYLVEST KARL JENS
IPC: F27B7/20
Filed: 1953-11-03
Abstract: 731,654. Preheating furnace charges. SMIDTH & CO., AKTIESELSKAB, F. L. Nov. 3, 1953, No. 30361/53. Class 51 (2). Apparatus for feeding preheated cement raw material to a rotary furnace 1 comprises cyclone separators 4 and 6 and a fan 7 traversed in turn by waste gases from the furnace, devices 15 and 12 feeding the material into the said waste gases in the flue pipes 3 and 5 leading to the separators 4 and 6 respectively, and a device 18 feeding material into the furnace through a pipe 17, the charge material in or on each of the devices 12, 15 and 18 forming a gas seal which is preserved while the material is wholly or partly fluidized to facilitate its flow into the next lower stage. The device 12, Fig. 2, comprises a casing 24 enclosing a gas-permeable bowl 23 fed with raw material through a pipe 11, and a valve controlled air pipe 25 admitting fluidizing air whereby material in the bowl 23 is caused to overflow into the pipe 13. The device 15, Fig. 6 (not shown), comprises a stand pipe 14 terminating in a funnel disposed over a disc with gas-permeable edges on which the material collects. The device 18, Fig. 3, comprises a casing 32 enclosing a gaspermeable surface 33 from which fluidized material is pushed by pressure of further material in the pipe 16. In a modification, Fig. 4 (not shown), the air chamber below the gas-permeable surface is divided into two compartments, and in another modification, Fig. 5 (not shown), a vertical stand pipe feeds a horizontal disc with gas-permeable edges.
Patent GB-602969-A (GB)
Title: Improvements in or relating to multi-channel signalling systems
IPC: H04J3/16
Filed: 1945-11-13
Abstract: 602,969. Thermionic distributers. McDERMOTT, T. J., and COOP, E. Nov. 13, 1945, No.. 30384. [Class 40 (iii)] [Also in Group XL (c)] In a multi-channel signalling system each channel circuit is rendered operative in turn for a predetermined period by an initiating pulse and a common terminating pulse is applied to all the circuits to terminate the operation of that channel circuit which is operative at the time. The invention is described with reference to a system having nine channels eight of which carry pulse modulated signals and the ninth a synchronizing signal which may comprise three equally spaced pulses of equal duration. At the transmitter a control oscillator 1, Fig. 1, produces positive-going pulses at a frequency of 81 Kc /s. These are inverted at 2 and applied to a counter 3 which at every ninth pulse delivers an initiating pulse to the first channel circuit 5, to render it operative to pass the modulated channel pulse from lead 6 to the modulator 7 of the transmitter 9. The next positive pulse from generator 1, applied to circuit 5, renders it inoperative and, in ceasing to operate, the channel circuit generates a negative pulse applied through lead 10 to form the initiating pulse for .the next channel circuit 11. This circuit is then operative until closed down by the next positive pulse from generator 1, and so on. The eighth pulse of each series of nine pulses counted by circuit 3, triggers the synchronizing signal generator 4 to modulate the transmitter 9. A similar chain of channel circuits is used at the co-operating receiver, Fig. 2 (not shown). The time relationship between the received synchronizing signal and the eighth pulse in each group of nine counted by the local counting circuit, controls a correcting voltage applied to the local control oscillator. A form of channel circuit such as 5, 11, Fig. 1, comprises a cathode-coupled relaxation oscillator, Fig. 3, having valves 41, 42 with a common cathode resistor 50. The channel is operative when valve 42 is made conducting and signals from lead 44 on its suppressor grid 43 are passed to its anode circuit. The negative initiating pulse is applied through lead 49 to the suppressor grid 48 of valve 41. Anode current is cut off and a positive impulse fed to the control grid of valve 42 which becomes conducting to maintain 41 in the cut-off condition. The positive terminating pulse, applied through condenser 47 to the control grid of valve 41 restores the circuit to the quiescent state in which 41 is conducting and 42 is non-conducting. The negative-going initiating pulse for the next channel circuit is derived, by differentiation, from the trailing edge of the positive-going square pulse across resistor 50 which occurs while valve 42 is conducting. Specifications 588,416, 588,417, 590,215 and 592,804 are referred to.
Patent GB-1048629-A (GB)
Title: Improvements in or relating to paper machines
IPC: D21F3/02
Filed: 1963-07-31
Abstract: 1,048,629. Wet presses. BELOIT CORPORATION. July 31, 1963 [Aug. 3, 1962; Feb. 14, 1963], No. 30430/63. Heading D2A. [Also in Division F4] A press-section of a paper-making machine comprises two rolls 12, 13 forming a first nip through which a paper web W-1 on a felt 11 passes, and two rolls 14, 15 forming a second nip in which the felt is dewatered. Roll 15 is a grooved roll and has water jet 15d, scraper 15e which has fingers engaging in the grooves, brush 15h, and air doctor 15i. Rolls 12 and 14 are plain rolls, while roll 13 is similar to roll 15.
Patent GB-1274516-A (GB)
Title: Process for making moulded resin articles provided with a relief pattern
Inventor: KURASHIMA YUTAKA
IPC: B29C39/00
Filed: 1969-06-16
Abstract: 1,274,516. Casting articles with relief patterns. Y. KURASHIMA. 16 June, 1969 [18 June, 1968; 13 Aug., 1968], No. 30453/69. Heading B5A. [Also in Division B6] Synthetic resin articles, having a decorative surface in relief, are moulded by casting a resin prepolymer into a cavity provided with a surface over which a film is applied and which is either deformed by the resin against one or more inserts on the surface, or wrinkles during the heat curing of the prepolymer, the film either comprising part of the article and optionally including a coloured pattern printed thereon or being stripped therefrom when the film may also have printed thereon a coloured design which is transferred to the article. The casting resins may comprise thermoplastic polymethyl methacrylate or thermosetting polyester, and may be coloured, and after curing, e.g. at 30‹ to 60‹ C., the article, e.g. a plate, tube or rod, is annealed, e.g. at 90‹ C., and cooled before removal from the mould. Examples are given in which the moulding cavity is defined between a pair of plane glass plates surrounded by a frame and in which; (1), a methyl methacrylate prepolymer is cast against a nylon film laid over a hexagonally latticed wire netting matrix, the film being stripped from the article; (2), a cardboard sheet matrix provided with a plurality of circular openings and a polyvinyl alcohol film are alternatively employed in example (1); (3), a plurality of phenol-formaldehyde resin discs, iron rods, wire configured as flowers, and polyethylene resin cubes are alternatively employed as matrices in example (2), secured to the mould surface by adhesive tape or gum arabic; (4), a polypropylene film was used which wrinkled during heat curing of polymethyl methacrylate; (5), the film of example (4) was replaced by a polyvinyl chloride film which was photogravure colour printed and wrinkled during the casting process, and was incorporated into the cast article. The moulds may also comprise metal, and the matrices may also comprise glass, wood, stone or cement, and may also be of hemispheric, or truncated conic shape, or may comprise wire configured in the shape of a bird. The matrices may be embedded in the article to comprise part thereof together with the film. The film may also comprise polycarbonate, cellulose acetate, or polyvinylidene chloride. The cast articles may also comprise doors, screens, furnishings and lamp shades.
Patent GB-763750-A (GB)
Title: Gyroscopic apparatus
Inventor: BRADDON FREDERICK D
IPC: G01C19/38
Filed: 1954-10-22
Abstract: 763,750. Automatic control systems. SPERRY CORPORATION. Oct. 22, 1954, No. 30491/54. Class 38 (4). To derive signals indicative of the heading, pitch and roll attitudes of a dirigible craft, directional gyroscopes 18 and 24, Fig. 1, are suspended, with their spin axes horizontal and perpendicular to each other, on wires 23 and 29 in fluid-filled chambers 9 and 8 carried by a frame 16 mounted in the craft on gimbal rings 12 and 14 to permit movement about three perpendicular axes. Gyroscopic error due to the earth's rotation is automatically corrected by conductive fluid-type level gauges 63 and 171, mounted on the gyro rotor cases, producing electrical signals, linearly proportional to the error up to a limit of ¢ degree, for application through amplifiers 75 and 169 to A.C. inductiontype precession torque motors 72 and 168 for the gyros. To maintain frame 16 fixed in azimuth, an electromagnetic E-type pick-off 56 associated with gyro 18 controls through an amplifier 58 a servomotor 60 rotating the frame. An electrical signal generator 62 driven by servomotor 60 then produces a signal indicative of craft heading. The spin axis of gyro 24 is maintained at right angles to that of gyro 18 by an electromagnetic pick-off 163, associated with gyro 24, controlling through an amplifier 166 a precession torque motor 164 for gyro 24. To maintain frame 16 fixed relative to a horizontal plane signals from electromagnetic pickoffs 30, 33 associated with gyros 18 and 24, respectively, are applied to an electrical resolver unit 42, the rotor of which is coupled to frame 16 so that output signals, properly apportioned according to the heading of the craft, are applied through amplifiers 46 and 47 to servomotors 36 and 39 adjusting gimbal rings 12 and 14. Electrical signal generators 52 and 54 driven by motors 36 and 39 respectively produce signals indicative of roll and pitch attitude. To obtain a suitably damped period of gyro 18 a portion of the signal from level gauge 63 is applied through an amplifier 158 to control another torque motor 155 for gyro 18. In a modification, the gyro rotor cases are mounted on vertical instead of horizontal axes. Specifications 545,284, [Group XX], and 643,749 are referred to.
Patent GB-306185-A (GB)
Abstract: 306,185. Bost, G. W., and Electroflo Meters Co., Ltd. Aug. 29, 1927. Pressure gauges.-To indicate the correct input quantities required in a process in order to produce, or maintain, correct relationship with an independently variable output or input quantity, a pointer controlled by the independent variable co-operates with a scale graduated in terms of the input quantity. Thus as applied to the efficient working of a boiler plant the steam pressure affects gauges 6, 7, 8, the dials' of which are graduated to show respectively the corresponding input of fuel, the amount of air supply and the actual steam pressure. The gauge 6 may be of the form shown in Fig. 1 wherein the pressure gauge pointer 2 co-operates with various concentric scales graduated in terms of equivalent depths of fuel bed for different stoker speeds. To vary the indications of the gauges 6, 7 in accordance with changes in quality of the input substance and as applied to the electrical system shown wherein the steam pressure affects a resistance 4 in a circuit through all the instruments, variable resistances 9, 11 are included in the circuits of the potential coils, the scale 10, 12 being graduated according to the possible changes in the fuel and air supplies.