baber/WOPTO huggingface dataset:
Patent GB-1040910-A (GB)
Title: Casting mould for the alumino-thermic welding of steel rods
Inventor: PROSCHEK FRIEDRICH
IPC: B22C9/22
Filed: 1963-10-10
Abstract: 1,040,910. Moulds; thermo-aluminic processes. ELEKTROCHEMISCHES WERK AMMENDORF. VEB. Oct. 10, 1963, No. 40007/63. Headings B3F and B3V. A casting mould for alumino-thermic welding of reinforcing rods, Figs. 1 and 2 (not shown), comprises a reaction chamber 1 with an outlet 4 in its inclined base 3. The outlet connects with the casting space 5 and has located therein a fusible separating plate 7. The casting space 5 consists of entry portions 8 of a cross-section corresponding to that of the rods to be welded and a hollow portion 9 which serves as a riser and sloping means for the weld bead and which has a widened portion under the outlet 4 forming a cavity 10. At the opposite end to the inlet 4 and on the other side of the casting space is a passage 11 which connects a channel 13 in the casting space with a trap chamber 12. In the welding process the welding compound reacts in the chamber 1, the separating plate 7 melts and the weld metal runs into the space 5 around the ends of the rods which are melted and into the trap chamber 12. The bulk of material collects in the portion 9 and thus funnels, voids and other defects occur outside the weld proper essentially within the cavity 10.
Patent GB-982889-A (GB)
Title: Improvements in or relating to methods of inserting inserts through solid bodies
Inventor: PRESTIGE HARRY THOMAS
IPC: H01R43/20
Filed: 1961-10-20
Abstract: 982,889. Inserting elastomeric members in sheet material. J. & S. ENGINEERS Ltd. Jan. 18, 1963 [Oct. 20, 1961], No. 40253/62. Divided out of 967,630. Heading F2S. A method of inserting a rubber or like elastomeric insert 12 into an imperforate sheet of material 20 the insert having at least one cavity or projection formed therein or thereon comprising the steps of plugging the cavity or padding the projection before insertion of the insert into the sheet, placing the insert 12 within the bore 27 of a shrouding member 25 located between a split die 17 supporting the sheet 20 and a ram 16 the punch 21 of which is a sliding fit within the bore 27, and supplying a pressure first between the shroud 25 and the die 17 to produce a sealing contact between the shroud and the sheet 20 and then between the ram 16 and the die 17 to separate the insert within the bore 27 so that the elastoma of the insert acts temporarily as an hydraulic fluid to press out a slug from the sheet into the die 17. The resilient body of the insert is then forced into the die aperture 31, which is smaller than the bore 27, so that the insert is gripped within the opening punched out of the sheet 20. As shown in Fig. 1, the ram 16, which is supported at its ends and urged away from a shank 22 by a pair of connecting-rod and spring units 24, 26 has a longitudinal groove 30 in its punch 21 into which the one or more terminals of the insert project a dummy plug 33, made of a material, e.g. brass, which is harder than the sheet 20, being inserted into the socket of each terminal in order to prevent the cavity walls on walls from collapsing due to the high surrounding pressure during the insertion operation. A terminal plug 70, Fig. 6, to be inserted in an imperforate panel 71 by means of a punch 72, shroud 73 and die 74, has upwardly and downwardly-projecting pins 75, 76, the lower ones of which are protected by a rectangular nylon padding member 77, the punch being provided with recesses 82 to receive the upper set of pins 75. Specification 931,875 also is referred to.
Patent GB-952797-A (GB)
Title: Gas turbine fuel system
IPC: F02C9/16
Filed: 1962-10-25
Abstract: 952,797. Gas turbine plant. GENERAL MOTORS, CORPORATION. Oct. 25, 1962 [Oct. 27, 1961], No. 40439/62. Heading FIG. [Also in Divisions F2 and G3] In a gas turbine fuel control system which comprises a valve for metering fuel, a variable speed governor controlling the valve, and a variable volume reservoir to take fuel from or add fuel to the metered flow, the arrangement is such that the reservoir is enlarged in response to an increase in governor speed setting. Fuel, as from a boost pump or reservoir (not shown), passes through line 13 to a positive displacement pump 14 and thence through line 17, an annular port 24 of a metering valve 18, and a delivery line 12, to the fuel nozzle 11 of a gas turbine engine E. A by-pass valve 19, responsive to the pressure drop across the metering valve 18, maintains a constant metering head across the latter. A governor 29 the speed setting of which is adjusted by manual operation of a lever 36 to vary the compression of a spring 28, controls the position of the metering valve spool 23 and thereby the degree of opening of the port 24. A reservoir chamber 67, provided with an inlet having an optional ball check valve 72 and an outlet having a similar optional valve 76, stores fuel, the volume of which is governed by the position of a piston 49. Above the piston 49 is a chamber 68 containing fuel supplied from the line 17 through a valve 87 and vented to the pump delivery line 13 through a conduit 94 provided with a restrictor 96. The valve 87 is so controlled by a diaphragm 83 as to allow sufficient fuel to flow to the chamber 68 to replace the leakage through restrictor 96 and thereby provide pressure balance between the chambers 67 and 68. The pressure balance may instead be achieved by a three-way valve controlled by the diaphragm 83. When the lever 36 is raised abruptly to accelerate the engine, a rod 62, connected at 69 to the lever 36 and slidably engaged over a spindle 61 screwed into a hub 51 of the piston 49, is correspondingly raised, whereby springs 64 and 66, in chambers 68 and 67 respectively, provide a differential loading on the piston 49. This differential loading causes the spring 66 to raise the piston 49 at a rate governed by the fuel flow through the restrictor 96, the valve 87 being closed, and fuel, approximately equal in volume to the fuel in excess of that required for tolerable acceleration, is drawn into the reservoir chamber 67. Abrupt downward movement of the lever 36, which movement causes the governor initially to shut off the fuel flow through the port 24, lowers the piston 49 to force some fuel into the delivery line 12 to avoid the engine stopping before steady state conditions are reached after deceleration. The size of the orifice 96 and the size of the hole in spring retainer 98 respectively govern the rate of fuel withdrawal from, and delivery to, the line 12.
Patent GB-1534898-A (GB)
Title: Printers
IPC: B41J19/20
Filed: 1976-09-30
Abstract: 1534898 Selective printing TREND COMMUNICATIONS Ltd 20 Sept 1977 [30 Sept 1976] 40569/76 Heading B6F A printer comprises a print head 15 which is moved in the print direction by a first servomotor 17 while a second servo-motor 18 acts as a brake and in the return direction by the second motor 18 while the first motor 17 idles. The two motors 17, 18 may be used for "on the fly" printing or for stationary printing. Optical sensors 25, 26 monitor the position of head 15.
Patent GB-1497105-A (GB)
Title: Transfer of a compressible fluid to a relatively incompressible fluent material
IPC: C02F3/20
Filed: 1975-10-04
Abstract: 1497105 Aerating liquids R E SPEECE 4 Oct 1975 40739/75 Heading BIC In a method and apparatus for dispersing a gas in a liquid under pressure a liquid circulation is established (Fig. 2a) by pump 46 round a closed circuit comprising aerating device 10, flow circulating device 50 (e.g. an injector device); valve 54, chamber 32 and valve 44, while a separate liquid flow takes place from inlet conduit 26 through inlet valve 34, chamber 30 and outlet valve 38 to outlet conduit 28. The valves are periodically changed over in a sequence arranged to avoid loss of pressure so that an alternative circuit is established through the aerating device 10 and chamber 30, while the aerated liquid in chamber 32 is discharged to conduit 28, see Fig. 2b (not shown). The aeration device 10, Fig. 1, has a top liquid inlet; the liquid enters at a rate faster and leaves at a rate slower, than the rate at which the gas bubbles from the diffuser 18 rise, resulting in an accumulation of bubbles in zone 22, whence unenriched gas may be discharged from vent 24.  Fermentation apparatus. A fermentation vessel (64, Fig. 4 not shown) may be connected across the conduits 26, 28 so that the fermentation broth is circulated through the apparatus where oxygen is supplied to it while extraneous gas (e.g. CO 2 ) is stripped from the froth by injection of air into the vessel (64). There may be a by-pass (70) for the vessel (64). Other applications-The liquid may be supersalinated so that effervescence occurs when it is depressurized, which may be useful in flotation separation of solids. Other uses are in the aeration of industrial waste water, and the production of an oxygen-enriched gas by dissolving air in a liquid (e.g. a fluorocarbon) which preferentially absorbs oxygen, and thereafter depressurizing the liquid.
Patent GB-934500-A (GB)
Title: Improvements in or relating to a rotary pump for liquids
IPC: F04C2/344
Filed: 1960-11-29
Abstract: 934,500. Rotary pumps. SOC. HYDROMECA. Nov. 29, 1960 [Dec. 4, 1959], No. 40998/60. Class 110 (2). In an outwardly-sliding vane-pump the rotor 10 is surrounded by a stator sleeve 11 abutting a fixed cheek plate 12 and a movable cheek plate 20, the latter being pressed lightly against the rotor by a spring 21. The space 26 communicates with the pressure side of the pump and the rotor is compressed between the cheek plates by fluid pressure acting on the cheek 20. The slots in the rotor, in which the vanes slide, may similarly be pressurized, causing the vanes to be pressed against the stator 11 with a force dependent on the supply pressure.
Patent GB-1460935-A (GB)
Title: Polymerization of ehtylenically unsaturated hydrocarbons
IPC: C08F4/16
Filed: 1974-09-23
Abstract: 1460935 Polymerization of olefins SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 23 Sept 1974 [25 Sept 1973] 41309/74 Heading C3P Ethylenically unsaturated hydrocarbons are polymerized in the presence of a catalyst comprising (a) a dialkyl aluminium halide and (b) γ-TiCl 3  obtained by reducing TiCl 4  with an organoaluminium compound at below -25‹ C., heating the resultant TiCl 3  to between 80‹ C. and 300‹ C., pretreating the TiCl 3  with a solution of a dialkyl aluminium halide in a hydrocarbon and separating the TiCl 3  from the solution. Specified unsaturated hydrocarbons are ethylene, propylene, butene-1, pentene-1, styrene and butadiene. A prepolymerization may be carried out during the pretreatment or after the separation of the hydrocarbon solution at below 62‹ C. in an inert hydrocarbon. In the examples propylene is polymerized in isooctane in the presence of hydrogen using (a) AlEt 2 Cl and (b) γ-TiCl 3  obtained by reducing TiCl 4  with AlEt 3  in pentane at -100‹ C. or AlEt 2 Cl in isooctane at -30‹ C., heating to 155‹ C. to give γTiCl 3  and pretreating with AlEt 2 Cl in isooctane in the presence of propylene or in the absence of propylene with or without a subsequent treatment with propylene.  Reference has been directed by the Comptroller to Specification 1,372,440.
Patent GB-1435262-A (GB)
Title: Fluorocarbon polymer coating compositions containing mica particles
IPC: A47J36/02
Filed: 1974-09-24
Abstract: 1435262 Fluorocarbon polymer coating compositions E I DU PONT DE NEMOURS & CO 24 Sept 1974 [24 Sept 1973] 41496/74 Heading C3P An aqueous coating composition comprises (a) fluorocarbon polymer, i.e. polymer derived from monomer containing only carbon, fluorine and, optionally, other halogen, (b) colloidalsize particulate silica stabilized with sodium ions, optionally together with water-soluble alkali metal silicate, (c) particulate mica, optionally coated with pigment, and (d) water as a carrier, the components (a), (b) and (c) constituting, respectively, 40-93, 5-35 and 2-25 weight per cent of components (a), (b) and (c). The polymer may be polymonochlorotrifluoroethylene, polytetrafluoroethylene or a copolymer of tetrafluoroethylene and hexafluoropropylene; the alkali metal silicate may be lithium polysilicate, sodium silicate or potassium silicate. Preferably more than 80% of the particles of mica have a particle size of 4-50 micron; the pigment of pigment-coated mica particles may be titanium dioxide, zirconium dioxide, vanadium oxide, chromium dioxide or iron oxide. The composition additionally may contain pigment derived from the use of a pigment dispersion in the preparation of the composition and (unspecified) flow agents, coalescing aids, anti-cratering agents and antimudcracking agents.' The composition may be applied by spraying, dipping, brushing or rollercoating to a substrate which thereafter may be air-dried and baked to form "non-stick" coatings. A metallic substrate preferably is pretreated by flame-spraying with metal or metal oxide, grit blasting or frit coating although the composition may be applied to non-grit blasted phosphated and chromated metals; a glass substrate preferably is pre-treated by grit blasting or frit coating.
Patent GB-1192925-A (GB)
Title: Control Systems for Automatically Controlling the Steering of a Mineral Mining Machine
Inventor: WEBB RONALD ESMOND
IPC: E21C35/24
Filed: 1966-09-16
Abstract: 1,192,925. Automatic steering control. COAL INDUSTRY (PATENTS) Ltd. Sept. 15, 1967 [Sept. 16, 1966], No.41498/66. Addition to 1,123,374. Heading G3R. In a system for automatically steering a mineral mining machine within a mineral seam under the control of the angular orientation of the machine and electromagnetic radiation back-scattered by material adjacent the machine, as claimed in Specification 1,123,374, means are provided for reducing or eliminating the control effect of the radiation when such control would be unreliable. Under these conditions the position relative to the seam is selected by steering manually and the direction to be maintained thereafter is selected by adjusting the mounting angle or electrical characteristics of the orientation detector.
Patent GB-935690-A (GB)
Title: Improvements relating to pit props
IPC: E21D15/52
Filed: 1959-12-07
Abstract: 935,690. Pit props. GUTEHOFFNUNG SHUTTE STERKRADE A.G. Dec. 7, 1959 [Dec. 6, 1958], No. 41539/59. Class 20 (2). A telescopic pit prop is provided with a head comprising a tube 6 enclosing the top of the upper part 1 of the prop and a guide 8 welded to the part 1 for a wedge 7 which projects at both sides through apertures in the tube 6 and the ends of which have stops to engage the tube. The wedge is adapted to raise the head against the mine roof and the wedge and guide have interengaging ribs and grooves 11, 13 which prevent vertical movement of the wedge.
Patent GB-973102-A (GB)
Title: Tape spool drive for magnetic recorder
Inventor: HILL-VENNING JOHN
IPC: G11B15/43
Filed: 1961-11-21
Abstract: 973,102. Reverse gear and control; disc brakes. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. Dec. 5, 1962 [Nov. 21, 1961], No. 41650/61. Headings F2D and F2E. [Also in Division G5] Each of a mirrorimage pair of magnetic tape spool drive units comprises a pair of gears 26, 27 forming friction clutch member driven in opposite directions by a unidirectional motor 22 and gears 23-25, either gear 26, 27 being selectively engageable with a third clutch member 30 to transmit torque to the reel in either direction to a degree dependent on compliance arm means 45 sensing the tape tension so as to maintain it constant. The member 30 is carried by an arm 32, effectively pivoted in a casing slot at 33 and rockable by a multi-start screw 35 turned by the member 53 linked to the compliance arm 45 by means 47, 49, 50-52. Spring and cable means 54, 56 (58), adjustable at 55 connect each of the links 50 to a swing-arm means 57 which is moved by one or other of two solenoids 64, 65 to apply initial torques to the spools according to the selected tape-feed direction. The means 55 provide differential adjustments and adjusting screw means 62 (Figs. 6, 7, not shown) provides a common adjustment. An accelerating/braking facility is provided by solenoids 71 and an inter-unit linkage 76. Energization of the take-up solenoid increases take-up torque and the linkage 76 reverses the feed torque. Energization of the feed solenoid simultaneously with turning off the drive motors 22 provides braking, backward rotation of either motor being prevented by pawls 42 wedging into a V-groove 41 in a motor-shaft pulley.
Patent GB-1506988-A (GB)
Title: Colour video signal recording and/or reproducing system
IPC: G11B20/02
Filed: 1976-10-07
Abstract: 1506988 Television systems NIPPON VICTOR KK 7 Oct 1976 [13 Oct 1975] 41696/76 Heading H4F A video signal recording system includes a circuit 16, Fig. 1, which modifies the chroma signal by increasing the amplitude of the colour burst signal relative to that of the chrominance component to increase the S/N ratio of the burst. As disclosed the circuit 16, in response to a burst duration pulse (17) generated in response to the video sync. signal, increases the burst amplitude by 6 dB (or decreases the amplitude of the chrominance component) so that the amplitude of the modified burst is at least as great as the maximum amplitude of the chrominance component. The modified chroma signal passes via an a.g.c. 20 to a mixer 14 where it is mixed with a luminance component consisting of the frequency modulated (12) low frequency portion of the normal video signal (10). The mixer feeds a recording head 25. In the reproducer, Fig. 3, the level of the modified chroma signal is controlled by an a.g.c. 53, the resultant signal being frequency converted (44) using an oscillator 48 phase controlled (47) by the modified burst signal. The burst amplitude is then decreased (49) by 6 dB relative to the chrominance component to provide the normal chroma signal which is fed via a colour killer 51 to a mixer 35 where it is mixed with the frequency demodulated (33) luminance component to provide the normal video signal output (37).
Patent GB-1484148-A (GB)
Title: Apparatus for determining the transverse position of a surface defect in a sheet material moving longitudinally
IPC: G01N21/89
Filed: 1974-09-25
Abstract: 1484148 Determining defect position photo-electrically KAWASAKI STEEL CORP AND TOEI DENSHI KOGYO K K 25 Sept 1974 [28 Sept 1973(2) 41739/74 Heading G1A The presence of a defect in a moving sheet is found by scanning a light beam across the sheet and noting changes in reflected or transmitted light using a photo-detector; the defect position is found by an array of detectors spaced across the path scanned, so as to determine by the beam position when the defect is detected. A source 1 emits light which is scanned across sheet 3 by a mirror drum 2. The reflected light is incident on a detector at 4, while the scanned light is incident on detectors 5a-5d. By gating the detector signals together, Fig. 3 (not shown), an output is obtained indicating within which quarter of the sheet width the defect is located. The number of detectors 5 may be increased, and there may be more adjacent the sheet edge than its centre.
Patent GB-1444138-A (GB)
Title: Device for use in removing cust from dressed skins or hides
IPC: D06G1/00
Filed: 1973-09-08
Abstract: 1444138 Suction cleaning apparatus CORIARII EST 8 Sept 1973 42356/73 Heading A4F Apparatus for removing dust from dressed skins comprises a suction chamber 6 having a suction orifice adjacent which is an assembly of idler rollers 21 preventing undue flexing of an air permeable conveyer belt 3 having a face engaging a skin to be treated, and adjacent which face is a nozzle 20 for supplying a jet of air and a suction aperture 18. In the illustrated embodiment, skins are fed to the belt 3 by an air permeable belt 2 passing over idler rollers 21 adjacent a suction orifice in a suction chamber 5. On leaving the belt 6, the skins are conveyed by a further air permeable belt 4 over a suction orifice in a suction chamber 7 and beneath a further air nozzle 20. Jets from the nozzles 20 remove dust from opposite faces of the skins which dust is drawn by suction through apertures 18, 19 at the sides of each nozzle to be evacuated via tubes 24. After passing the second aperture 19 the skins are brushed by a brush 25.
Patent GB-1240881-A (GB)
Title: Improvements in or relating to cartridges
IPC: F42B8/20
Filed: 1968-09-05
Abstract: 1,240.881. Cartridges; recoilless weapon. DYNAMIT NOBEL A.G. 5 Sept., 1968 [6 Sept., 1967], No. 42365/68. Headings F3A and F3C. A cartridge for firing from a sub-calibre barrel 21, Fig. 2, inserted in the barrel 20 of a recoilless weapon, comprises a cartridge case 1, Fig. 1, a propellant charge 5 located between the head 2 and stabilizing fins 4 of a projectile, and a rearward extension 8 of the cartridge case including an igniter 12. On ignition of the igniter, an igniting jet passes along a bore 10 in the extension and a bore 6 in the projectile tail to ignite the propellant charge through radial bores 7. Part of the propellant gases thereby produced pass rearwardly out of the cartridge case via the bore 10. The igniter can comprise an ejectable damming means for the bore 10, or, alternatively, radial bores 11 may be closed by a frangible band 13. The head of the projectile carries an insert 19 for adjusting the centre of gravity, and a marking charge 15, the igniting means 16 and 17 of which are locked by an ejectable element 18. A tracer element (not shown) fitted in the forward end of the bore 6 is adapted to be slid against an abutment at the rear end of the bore by air flowing through bores 7. In another embodiment (Fig. 3, not shown), the igniter (30) is carried in a hollow bolt (27) fitted in the rearward extension of the cartridge.
Patent GB-1007603-A (GB)
Title: Pumps suitable for windscreen washers
IPC: B60S1/48
Filed: 1961-11-28
Abstract: 1,007,603. Reciprocating pumps. TRICO PRODUCTS CORPORATION. Nov. 28, 1961 [Nov. 29, 1960], No. 42504/61. Heading F1A. A suction-operated windscreen washer pump comprises a piston 25 connected to a spring- loaded diaphragm 56 which defines a suction chamber 38 which is alternately connected to a source of suction and to atmosphere by a valve 52 which oscillates about an axis parallel to the piston axis. The piston is reciprocated to the left, Fig. 3, by suction from the engine intake manifold when the valve 52, which oscillates about a pivot 51, is in the position of Fig. 2 in which the suction inlet 48 is connected through the valve 52 to ports 54 leading to chamber 38 and is moved to the right on its pumping stroke by the spring 33 when the valve 52 is rotated to open the ports 54 to the chamber 85 connected to atmosphere through a filter 86. The piston 25 has spiral grooves 66 which cause oscillation of a shaft 67 connected to an arm 72 which co-operates with a toggle device 74 to oscillate the valve 52 at the end of each piston stroke. The pump has flap type inlet and outlet valves and the suction connection 48 is controlled by a manually operated valve on the vehicle dashboard. The piston is sealed by a sealing ring 30 and the pump is mounted on the vehicle by a mounting plate 91 closing the valve chamber 85. In a modification the manual valve in the pipe 48 is dispensed with and the pump reciprocation is stopped by a detent device which holds the member 52 in inoperative position.