baber/WOPTO huggingface dataset:
Patent GB-1102606-A (GB)
Title: Improvements in and relating to nuclear reactors
IPC: G21C1/00
Filed: 1965-08-12
Abstract: 1,102,606. Reactors. SOCIETE ANGLOBELGE VULCAIN S.A. 12 Aug., 1965 [28 Aug., 1964], No. 34519/65. Heading G6C. A pressurized water reactor comprises a core 8 consisting of fuel element assemblies 12 mounted between plates 16, 20 and moderator tube assemblies 13 for receiving absorbing rods 14. The main coolant flow enters the bottom of the core through holes 18, passes through the assemblies 12 and over the upstream section 10 of a heat exchanger located between a shell 23 and baffle 24. The coolant passes to a plenum 37 defined between the wall 26 of a pressurizer 33 and a baffle 27 and is withdrawn from the plenum by three pumps 3 having rotors 4 (only one shown) into the space between the baffle 27 and the underside of the lid 2 of the pressure vessel 1. The coolant then flows downwards over the downstream section 11 of the heat exchanger in a space defined between the baffle 24 and the wall of the pressure vessel. The rods 14 are controlled by the coolant pressure by means of two-way valves 39 whereby the upper ends of the rods may be alternatively subjected to the pressure existing in a conduit 38 or a conduit 7. When the valve is connected to conduit 38 the pressure at the upper end of the rod is lower than that at the lower end and the coolant flows upwardly through the tube assemblies 13 tending to move the rods upwards. When the valve is connected to conduit 7 the pressure at the upper end of the rods 14 is that of the delivery side of the pumps 3 and is greater than that at the lower end whereupon the rods are moved rapidly down into the core. Coolant enters the pressurizer 33 through a conduit 34 and is atomized by a device 35, the lower part of the pressurizer containing the liquid coolant and the upper part containing the liquid in vapour form together with one or more gases. The liquid leaves the pressurizer through an annular space 36 leading to the plenum 37.
Patent GB-1513979-A (GB)
Title: Calendar
IPC: G09D3/02
Filed: 1976-08-19
Abstract: 1513979 Calendars C J BOURBOUR 19 Aug 1976 34574/76 Heading G3T For building up a calendar for any year a set of eighteen cards, plates or the like are provided, some of single width and bearing the calendar of a single month and some of double width and bearing the calendar of two consecutive months, the months containing different numbers of days and starting on different days in the week so that by selecting eight of the cards etc. and arranging them under appropriate month headings the desired yearly calendar can be built up. Some cards bear monthly or two-monthly calendars on both sides, the design being such that both sides are never required for display at the same time.
Patent GB-1440596-A (GB)
Title: Electrically operated handling apparatus for a load
IPC: B66C23/00
Filed: 1973-07-19
Abstract: 1440596 Counterbalancing HITACHI Ltd 19 July 1973 34596/73 Heading B8B A load handling device has an electric motor for lifting a load, means for controlling the moving speed of the load, and means for controlling the force applied to the load by the motor, the speed control means being deactivatable so as to enable manual manipulation of the load which is supported by the motor under the control of the force control means. As shown the device comprises a parallelogram linkage 1-4, the link 2 carrying the load and the link 1 being connected to a chain wound round a sprocket 13 on the shaft of a motor 16. The end of the link 1 also carries rollers 11 engaged in guides 15 of a member 17 supported on rollers 18 engaged in a guide 19. The guide 19 and a post 20 supporting the linkage 1-4 are pivotally supported on a stand 22, 23. The motor 16 is controlled by the circuit shown in Fig. 3, in which closure of a switch 303 allows the output of a summing point 302, receiving inputs from a speed setting circuit 301, and a speed detector 311, to be applied to an amplifier 304. The output of the amplifier 304 and the output of a motor current detector 307 are fed to a second amplifier 305 the output of which is fed to a current converter 306 controlling the motor. In operation, closure of the switch 303 causes the motor to raise the load at a speed determined by the selection circuit, the detector 307 recording the torque required to raise the load. The selection circuit is then adjusted to zero-speed to stop the load and the switch 303 is opened. The amplifier 305, the detector 307, and the converter 306 then generate a current sufficient to balance the load and, since the switch 303 is open, the load can be raised or lowered manually.
Patent GB-369647-A (GB)
Title: Improvements in and relating to insulating materials for submarine cables
IPC: H01B3/28
Filed: 1930-11-17
Abstract: An insulating composition for submarine signalling cables and the like consists of deresinated gutta or balata, pure synthetic caoutchouc, and hydrogenated synthetic or natural caoutchouc from which albumen has been removed, suitable proportions being 35-45 per cent deresinated balata, 35-45 per cent synthetic caoutchouc, and 10-30 per cent hydrocaoutchouc.  Hydrocaoutchouc may be obtained by treatment of rubber with hydrogen at 200-300 DEG  C. and a pressure of 30-60 atmospheres in the presence of catalysts such as platinum, palladium or nickel.
Patent GB-1500228-A (GB)
Title: Electrical precipitators
IPC: B03C3/68
Filed: 1976-08-19
Abstract: 1500228 Control systems for electrical precipitators SIEMENS AG and METALLGESELLSCHAFT AG 19 Aug 1976 [9 Sept 1975] 34671/76 Heading H2H An electrical precipitator comprises a device for sensing successive electrical characteristics at the precipitator and comparing these characteristics whereby a breakdown between the electrodes of the precipitator is indicated by the comparison being different by a predetermined figure. An electrical precipitator 5 is supplied from an A.C. source 1 by way of reversely connected thyristors 2, a step-up transformer 3, a rectifier 4 and an inductor 6. The thyristors 2 are driven by signals from a control unit 9 to which are fed signals I 1  representing the actual value of the precipitator current and I 5  representing the desired value of the precipitator current. The control unit 9 is further supplied with a further signal U D  representing the compared difference between two sensed successive characteristics at the precipitator. As shown in Fig. 3 the sensed characteristics are successive values of U A , namely the voltage applied to the preciporator 5. The voltage U A  applied to the precipitator 5 is fed to a unit 8 by way of resistors 7 wherein the voltage U A  is fed to a timing unit 81, and to two storage amplifiers 82, 83; the timing unit 81 being operative to permit the amplifiers 82, 83 to receive the voltage U A  at desired instants. At a successive instant after the amplifier 82 has received a signal the value present therein is compared, in a comparator 84 with the value of the voltage U A  at the successive instant. Should the difference in the comparison exceed a predetermined figure, indicating a flashover between the precipitator electrodes, a triggerunit 87 is actuated by way of a gate 86 to apply a signal U D  to the control unit 9 whereby the thyristors 2 are controlled to reduce the voltage U A  applied to the precipitator. The amplifier 83, comparator 85, gate 86 and trigger unit 87 form a second channel, operative similarly as described above but at other timing instants. In another embodiment, the minimum values of the precipitator voltage U A  are sensed, the thyristors 2 being controlled to reduce the voltage V A  should the value of the voltage V A  fall below the minimum by more than a predetermined amount.
Patent GB-191714-A (GB)
Title: Improvements relating to elastic fluid turbines
IPC: F01D5/04
Filed: 1922-12-20
Abstract: 191,714. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Allen, R. C.). Jan. 13, 1922, [Convention date]. Combined-flow type; axial-flow type; blades.- In an elastic fluid turbine the blade space between the rotor and casing is shaped to change the mean direction of fluid flow gradually from an axial to a radial direction. The fluid passes through a velocity stage 14 and an axial-flow stage 12 having blades of gradually increasing length to an axial radial stage comprising wide rotor blades 19, 21 of substantially triangular form separated by stator blades 20 also of triangular form. The exit edges 23, 24 of the rotor blades are normal to the mean direction of flow of the fluid. Guiding-ribs 31 assist in changing the direction of flow of the fluid and prevent eddies.
Patent GB-1086929-A (GB)
Title: Improvements in electrically-controllable microwave switches
IPC: H01P1/15
Filed: 1965-08-13
Abstract: 1,086,929. Microwave switches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 13, 1965 [Aug. 17, 1964], No. 34737/65. Heading H1W. An electrically-controllable microwave switch comprises a number of voltage-dependent capacitative elements, e.g. ferro-electric capacitors, in series with the inner conductor of a coaxial line. As shown, elements 4a, 4b, 4c, 4d are arranged between sections 11, 1b, 1c, 1d, 11 of inner conductor which are supported by insulators 6, 7 and are connected alternately to the outer conductor and to a source of potential +V. In one form, the elements may consist mainly of an ordinary dielectric substance having a thin layer of ferro-electric substance in single-crystal or polycrystalline form on one or more surfaces.
Patent GB-1017403-A (GB)
Title: Improvements in or relating to fluid flow-control valves
IPC: G05D7/01
Filed: 1962-09-13
Abstract: 1,017,403. Valves. PHILMAC Ltd. Sept. 13, 1962 [Sept. 18, 1961], No. 34909/62. Heading F2V. A pressure-reducing valve for maintaining a constant ratio between the inlet and outlet pressures comprises a differential hollow piston 14, 15, Fig. 1 (not shown), co-operating at its smaller end with a valve seat 34 to control the flow from inlet 32 to outlet 45 through a space on the downstream side of the seat and thence through the hollow piston. The end of the smaller diameter piston is recessed to provide an annular closure rim 27. The seat is a resilient washer held by an inlet fitting 31. The piston is sealed by 0-rings, or in a modification, by U-section packings of which one is stationary and carried by the valve body.
Patent GB-458709-A (GB)
Title: Improved apparatus for delivering portions of relatively mobile material such as paste, oil or the like and preferably adapted for filling collapsible tubes therewith
IPC: B65B3/16
Filed: 1935-12-17
Abstract: 458,709. Pumps for viscous liquids. JOHNSON, B. A. E., and AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD, 20, Alstr÷mergatan, Stockholm. Dec. 17, 1935, No. 35007. [Class 102 (i)] [See also Group XVII] An extrusion apparatus for delivering portions of paste, oil, &c., comprises a spout 1 provided with one or more lateral discharge openings 13 which are covered by a delivery valve, e.g. a sleeve 12 having a central narrowed discharge opening 28 adapted to turn or move axially relatively to the spout to shut and open the discharge openings 13. The tapered end of the spout 1 forms a conical valve seat 14 the mouth of the sleeve 12 being correspondingly tapered at 17. The spout 1 is secured to the pump housing 16 the piston 3 being reciprocated in the pump cylinder 2 by a lever 5 pivoted at 6 and actuated by a cam 7 on the shaft 8. A second cam disc 9 on the shaft 8 actuates a lever 11 the forked end 18 of which engages a flange 29 on the sleeve 12. The pump cylinder 2 is provided with a toothed flange 19 engaging a rack 20 which is reciprocated by a cam 23 on the shaft 8 so that the inlet and outlet openings 24, 25 are alternately brought into register with the inlet and outlet openings 26, 27 in the housing 16. In operation, a tube A is threaded on to the sleeve 12 and with the piston moving to the left the discharge openings 25, 27 are in register and paste is forced out of the valve opening 28. The tube A is lowered during filling. On the return movement of the piston a small quantity of paste is sucked back into the spout, then the sleeve 12 shuts the openings 13 and the cylinder 2 is turned so that the openings 24, 26 are in register and fresh paste is drawn into the pump cylinder. The opening 15 in the tapered end 14 ensures that the string of paste B formed on the return stroke is situated centrally.
Patent GB-1278413-A (GB)
Title: Direct filling composition for teeth and novel filler for use therein
Inventor: SHADBOLT LAWRENCE EDWARD
IPC: C09C3/00
Filed: 1968-07-23
Abstract: 1278413 Coated particles DENTAL FILLINGS Ltd 18 July 1969 [23 July 1968] 35020/ 68 Heading B2E [Also in Divisions Cl and C3] A finely divided silica or silicate filler for use in dental fillings (see Division C3) is coated first with a vinyl-silane primer and then with an acrylic polymer. Suitable fillers include quartz, fused siliceous materials such as dental porcelain and silicate glasses, e.g. beta-eucryptite and pyrocerams, and dental silicate cement powders, particularly those obtained using a metal fluoride flux and having a composition (by weight): silica 32-42%; alumina 21-36%; trisodium or tricalcium phosphate 6-16%; and calcium fluoride, sodium fluoride or sodium, aluminofluoride 13-35%. The vinylsilane primer used is one capable of copolymerising with an acrylate or methacrylate monomer and is suitably a compound of the formula where R<SP>1</SP> is an acrylyl, methacrylyl or crotonyl group, R 2  is an alkylene group having up to 4 C atoms, and R<SP>3</SP> is an alkyl group having up to 4 C atoms. The acrylic polymer is then coated on the filler; the polymer may be preformed and applied from solution or an acrylic monomer may be polymerised in situ on the filler. The preferred acrylic polymer is polymethyl methacrylate.
Patent GB-1162369-A (GB)
Title: Ferrous Welding Electrode
IPC: B23K35/30
Filed: 1966-08-04
Abstract: 1,162,369. Welding by fusion. McKAY CO. 4 Aug., 1966 [10 Aug., 1965], No. 35076/66. Heading B3R. A ferrous welding electrode comprises in percentages based on the weight of metal plus carbon in the electrode 1-22% titanium and carbon within the range “ x per cent titanium + 1% to “ Î per cent titanium + 9%, the electrode being in the form of a ferrous tube filled with a core containing up to 22% titanium and coated with a coating consisting of carbon, up to 1.6% titanium, alloys (e.g. Fe-Mn or Fe-Cr), up to 10% slag forming ingredients and a binder. The core is 20-50% of the electrode by weight. The coating is 10-30% of the electrode by weight.
Patent GB-761956-A (GB)
Title: Improved device for conveying coal-dust fuel from bunker to burner
Inventor: WENDLER HANS
IPC: F23K3/00
Filed: 1954-12-03
Abstract: 761,956. Pneumatic conveyers. DEUTSCHE REICHSBAHN TECHNISCHES ZENTRALAMT. Dec. 3, 1954, No. 35084/54. Class 78 (1). Coal dust, or pulverized solid fuel, stored in a bunker 19 is fed from its bottom to the firebox 3 by compressed-air supplied through nozzles 4 which directs it to distributers 6 connected by pipes 9 to injection devices 10 disposed in a pipe 13 leading to the fire-box. Air for combustion also is supplied through the pipe 13. Compressed-air is supplied to the top of the bunker through pipes 5. Exhaust steam is used to assist the conveying of the fuel through the pipe 13.
Patent GB-302504-A (GB)
Title: Improved trap for sinks, sanitary basins, baths and the like
IPC: E03C1/29
Filed: 1927-12-28
Abstract: 302,504. Vose, E. H. Dec. 28, 1927. Addition to 273,060. Traps.-In a modification of the sanitary trap for sinks &c. described in the parent Specification, the outer vessel 1 is provided with an upturned flange 3 to fit into a recess in the sink or the like and the inner tubular member 10 with a flange 11 to rest on the flange 3 level with the surface of the sink. A perforated curved disc 13 is removably fitted into a recess 15 in the flange 11, which is at right angles to the tubular member 10. The trap may be made of brass, iron, aluminium, earthenware &c.
Patent GB-1493916-A (GB)
Title: Railway track tamping tool unit with a device for limiting the opening width of the pairs of tamping tools
IPC: E01B27/16
Filed: 1976-08-24
Abstract: The track-tamping tool unit (3) is provided with tamping tools (5, 6, 7, 8) mounted pivotably on a height-adjustable tamping-tool support (4). Via swivel and vibration drives (13, 14, 15), the tools can be displaced in opposite directions and set in vibration and are intended for plunging with their lower ends into the ballast bed on both sides of a sleeper. Each tamping-tool pair is connected to a device for limiting a maximum and a minimum opening width. This device is designed for fixing at least three or more different opening widths (O, I, II, III) and connected to a remote-controllable three-stage or multi-stage adjusting drive (9). <IMAGE>
Patent GB-977411-A (GB)
Title: A system for automatically controlling the operation of a forging press and manipulator
Inventor: GREGSON WILLIAM
IPC: G05B19/04
Filed: 1959-10-16
Abstract: 977,411. Valves. ELECTRAULIC PRESSES Ltd. Jan. 16, 1961 [Oct. 16, 1959], No. 35183/59. Heading F2V. [Also in Divisions B3 and G4] An electrically operated piston valve, Fig. 17, for use in a forging press control system, is centred by a spring 17f and is actuated by a coil 17c between the poles 17a, 17j of a magnet so that in dependence upon the direction of the current through the coil the piston is moved either up-closing ports 17v and 17t-or downclosing ports 17s and 17v.
Patent GB-1103159-A (GB)
Title: Flask of flexible material with supporting base
IPC: A61J1/00
Filed: 1966-08-05
Abstract: 1,103,159. Surgical infusion containers. SOCIETE FRANCAISE DES LABORATOIRES LABAZ. 5 Aug., 1966 [11 Aug., 1965], No. 35252/66. Heading A5R. A flask to contain a medical product to be administered by injection is formed in one piece from a synthetic plastics material and includes an integral handle 13 by which, in use, the flask may be suspended upside down, the base 12 of the flask being formed with a recess 17 into which the handle can be folded when not in use. The recess 17 is provided with a catch 19 to retain the handle and the recess may extend only around one half of the base of the flask, or, as shown, completely around the base. The recess may be wholly or partly shaped to the configuration of the handle. The material of the flask is thermosterilizable and the flask may be provided with an air-intake recessed into the base 12.
Patent GB-392112-A (GB)
Title: Improvements in or relating to fittings or mountings for securing or supporting louvres or louvre plates or sheets for skylights, lantern windows or similar structures
IPC: E04D13/03
Filed: 1932-12-13
Abstract: 392,112. Louvre frames. PITTAR, G. F. and HAYWARDS, Ltd., 187, Union Street, Borough, London. Dec. 13, 1932, No. 35291. [Classes 20 (iii) and 137.] Means for supporting louvre plates or sheets in skylights, casement, and other windows or like structures, comprises two bars having inclined ribs A<1>, with forward stops A<2> on which the plates rest, and integral stops or shoulders A<3>, A<4> to position the plate on the upper side. The bars are screwed to the sides of the window or other frame.
Patent GB-741797-A (GB)
Title: Rotors for centrifugal pumps, blowers and compressors
IPC: F04D29/22
Filed: 1953-12-21
Abstract: 741,797. Centrifugal pumps &c. SULZER FRERES SOC. ANON. Dec. 21, 1953, No. 25446/53. Class 110(1) In an impeller for a centrifugal pump, blower or compressor, each blade has an inner section 3 and an outer section 4, both approximately straight and of approximately equal length and inclined to each other at an obtuse angle with a smooth transition curve at the junction 5, and the outer section 4 of one blade S forms with the inner section 3 of the next following blade T a backwardly directed divergent diffuser channel 6 with a straight axis 7. The angle of divergence is about 10 degrees. The inlet channel 12 formed by the surface 11 of blade S and the inner end 10 of blade T is convergent. The surface 14 is preferably convex, while the surfaces, 8, 9, 11 are flat. At the outlet from the diffuser 6, the fluid stream divides into a front branch 17 and a rear branch 18, separated by an eddy space 20 which supports the branch 17 and tends to keep it parallel to the surface 8. Beyond the trailing edge 15, the branch 17 impinges against and deflects the branch 18 from the preceding blade channel and the combined stream has an outlet angle # which is between the outlet angles of the two branches. It is stated to be known to provide rotor blades which are continuously curved from the leading edge to the trailing edge, the curve being an involute or a logarithmic spiral.
Patent GB-1042139-A (GB)
Title: Pallets for use with fork lift trucks
Inventor: BOOTH GEORGE RANDOLPH
IPC: B65D19/00
Filed: 1962-09-18
Abstract: 1,042,139. Load-handling pallets. COAL INDUSTRY (PATENTS) Ltd. Sept. 18, 1963 [Sept. 18, 1962], No. 35469/62. Heading B8H. A pallet has a guide member 5 on each of two opposite sides to facilitate its insertion into racking consisting of vertical posts fitted with pallet supporting members in the form of pegs 11 (Figs. 3 and 4, not shown) which pass through, but protrude only slightly beyond the surface of, the posts. The guides 5 are at the trailing end of the pallet as it is inserted in the direction of the arrow A between a set of four posts 7, and serve to centre it between the rear pair of posts. The guides have dependent portions 5a (Fig. 2) so that they also serve to guide the pallet into a positive location on the pegs. When fully inserted the pallet is supported on four pegs, one on each post 7, the portions 5a resting on two of the pegs and like dependent portions 6a of stops 6 fitted at the leading end of the pallet resting on the other two pegs. For more positive location the portions 5a and 6a may be slotted, the pegs dropping into the slots when the pallet is fully inserted into the racking.
Patent GB-1021349-A (GB)
Title: Improvements relating to sheet monitoring means for printing presses
IPC: B41F3/80
Filed: 1963-03-01
Abstract: 1,021,349. Feeding sheets. MASCHINENFABKIK JOHANNISBERG G.m.b.H. March 1, 1963 [March 6, 1962], No. 35491/65. Divided out of 1,021,348. Heading B6B. The subject-matter of the parent Specification is disclosed in Specification 1,021,348 but the claims are directed to the sheet-feeding apparatus.
Patent GB-994790-A (GB)
Title: An improvement in harvesters
IPC: A01D43/08
Filed: 1961-10-02
Abstract: 994,790. Harvesting machines. A. B. GRONBERG. Oct. 2, 1961 [Oct. 3, 1960], No. 35510/61. Heading A1F. A machine for harvesting corn comprises a rotary flail cutter 11 which cuts the corn and directs it up through a conduit 29 to a rotary cutter 22 having knives 35 which co-operate with stationary knives 36 to chop the corn. The chopped corn then passes through a flexible tube 30 into a cyclone separator 26 where the grain passes through the outlets 40 into collecting sacks whilst the straw is drawn upwardly by a fan 25 through a tube extending vertically through the separator and discharged through an outlet 44 on to the ground of a separate collecting vehicle. A mower knife 13 may be located in front of the flail cutter. The cutters 11, 22 and fan 25 are driven by belt and pulley drive from a tractor drawing the harvester. The machine may also be used for harvesting peas, beans or the like. The machine may be used as a thresher when stationary in which case the cut crop is fed to the flail cutter through a funnel 51 or into the top of the separator. The flail cutter 11, conduit 29 and knife cutter 22 may be formed as a separate unit in which case the conduit 29 is provided with a mouth piece 56 for conveying the chopped crop such as green fodder to a collecting vehicle.