baber/WOPTO huggingface dataset:
Patent GB-884811-A (GB)
Title: Solutions of titanium and aluminium sulphuric acid salts
Inventor: EVANS ARTHUR WALLACE
IPC: C09C3/06
Filed: 1957-02-08
Abstract: An aqueous solution containing water-soluble sulphuric acid salts of aluminium and titanium which may be employed for coating pigments is prepared by dissolving titanium dioxide in excess sulphuric acid of at least 75% H2SO4 concentration and thereafter adding hydrated alumina to the solution at a temperature of at least 100 DEG  C. to reduce the excess acidity.  The excess acid employed is at least 90% in excess of the amount required to form titanyl sulphate and the alumina addition is such that the amount of such excess is reduced to 0 to 80%.  The titanium/aluminium ration, on an oxide basis, is preferably from 1:0,5 to 1:4.  Thus titanium dioxide in the form of the finished pigment or as a pigment intermediate product may be dissolved in 95-97% sulphuric acid in the proportion from 2-13 mols. of sulphuric acid per mol of titanium dioxide at a temperature of 140-150 DEG  C., the temperature being maintained by steam heating. Hydrated alumina may then be added at a 100-160 DEG  C., after which the reaction medium is diluted with water to a concentration of 20-100 grams/litre of TiO2 and the solids residue separated by decanting or filtering.  The final solution obtained may be employed to coat other pigments such as titanium dioxide, or titanates, or composite pigments such as titanium dioxide in admixture with barium sulphate or carbonate, or in admixture with zinc oxide.  In such a case, after the solution has been mixed with the pigment, an acid binding substance such as the alkali, metal alkaline earth metal, magnesium and ammonium hydroxides, oxides or carbonate or organic bases are added.  Alternatively the addition of the solution to the pigment to be treated may be effected in the presence of the acid binding agent.
Patent GB-456950-A (GB)
Title: Composite grinding wheels and methods of making the same
IPC: B24D5/00
Filed: 1936-02-14
Abstract: 456,950. Grinding-wheels ; moulding. NORTON GRINDING WHEEL CO., Ltd., Welwyn Garden City. Feb. 14, 1936, No. 4484. Convention date, Feb. 14, 1935. [Class 60] [See also Group V] An abrasive wheel comprises a non-abrasive central body of fibrous sheet-material associated with a resinoid forming a support for an annular rim formed of resinoid-bonded abrasive grains which is integrally secured to it. The invention is applicable to the manufacture of very thin cutting-off wheels in which the abrasive consists of diamond dust, but other abrasives such as silicon carbide, crystalline alumina or boron carbide, united by a resinoid bond, may be employed. The central support may consist of a number of thin sheets 24 of fibrous material, such as paper or cloth impregnated with synthetic resin, which in manufacturing the wheel are assembled in a mould around a central arbor 22. The annular space between the sheets and the wall 10 of the mould is filled with the mixture 28 of abrasive and resin bond and the mould is compressed between the platens 16, 18 of a hot press, the resinoid in the central and abrasive portions of the wheel being converted to the infusible state and integrally uniting the whole. To strengthen the wheel, a perforated metal disc may be interposed at the centre of the fibrous sheets 25. Thicker sheets, or a single thick sheet, of resinoidimpregnated fibrous material may be substituted for the thin sheets 24. A cup wheel may be formed by securing the abrasive annulus to the end face of the central support. U.S.A. Specification 1,981,970 is referred to.
Patent GB-740315-A (GB)
Title: Improvements in or relating to flashlight lamps
IPC: F21K5/08
Filed: 1954-02-16
Abstract: 740,315. Flashlight lamps. PHILIPS ELECTRICAL INDUSTRIES. Ltd. Feb. 16. 1954 [Feb 17, 1953], No. 4517/54. Class9(2) Flashlight lamp having a bulb 1 filled with oxygen under pressure and containing actinically-burning material, e.g. aluminium wire, to be electrically ignited so provided with a leakage indicator changing colour in the presence of water vapour and having a white background. The indicator may be a small quantity of pulverulent cobalt-cobalticyanide and is placed on a non-conducting body 7 of white glass mounted on the lead wires 4, 4<SP>1</SP>, which are connected by a bridge wire 6, ignition paste 5, 5<SP>1</SP> being applied to the junctions of the wires. Specification 436,047, [Group XI], is referred to
Patent GB-1404273-A (GB)
Title: Film frame counter
IPC: G09B9/30
Filed: 1973-01-30
Abstract: 1404273 Cinematography SINGER CO 30 Jan 1973 [15 Feb 1972] 4560/73 Heading G2E [Also in Division G4] A film frame counter has an encoder 13 which generates a pulse 41 in response to movement of the film drive motor 11. A monostable multivibrator (mmv) 35 responds to the leading edge of pulse 45 and mmv 37 responds to the trailing edge of pulse 49. AND gate 39 is disabled when the pulse 47 is received (this corresponds to the period of film movement). The pulse 50, when received, is forwarded, provided the pulse 47 is absent. Pulse 50 corresponds to a film frame being stationary in the picture gate. The pulse 50 is forwarded to a binary counter 71. Numerals 41-51 indicate the state of the pulse in various parts of the circuit. As shown an inverter 21 is included which only forwards a pulse 43 if pulse 41 is sufficiently pronounced. This, the mmv 35, 37 and AND gate 39 ensure that circuit noise does not alter the reading of the counter 71. To provide a directional count a tachometer 73, which provides an output while even the film moves, provides an input to motion detector 61. The output 93 will be positive when no film motion is sensed and at ground regardless of the direction of any sensed film movement. Switch 53 issues a film direction command on line 54. Only when there is no film movement (positive output 93) will one of the AND gates 55, 59 forward an output indicative of the film direction command to bi-stable multivibrator (bmv) 63 whose output gates pulses 51 to counter 71 along the "up" or "down" lines. The counter 71 outputs to a register which in turn outputs to the computer. Both these occur on receipt of an input on line 110, this being generated by pulse 51 passing through mmv 97, 99 and bmv 101 to AND gate 105 whose output is controlled by the computer 106 via line 107. The output of AND gate 105 is also used to reset bmv 101. A direct command to clear the counter 71 can be issued by the computer on line 117.
Patent GB-548424-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F1/08
Filed: 1941-04-07
Abstract: 548,424. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. April 7, 1941, No. 4613. [Class 40 (v) ] The loss at high frequencies due to the anode to earth capacity of a pentode valve is reduced by reducing the effect of the part of this capacity contributed by the suppressor grid by connecting the suppressor grid to a point in the amplifier at approximately the anode alternating potential. Fig. 3 shows a pentode V1 in which the effect of the inherent capacity C1 is compensated by connecting the suppressor grid to the point P1 or P2 which is of requisite potential and connected to earth through an impedance which is low relative to that of the inherent capacity C3. If the point P1 is of higher potential than the anode overcompensation may be effected so that part of the capacity C2 is compensated and by adjustment of the phase the impedance may be made of any kind and either positive or negative. Fig. 5 shows an arrangement in which the suppressor grid of the valve V1 is connected to the cathode of V2 which is connected as a cathodefollower. The coupling of the suppressor grid of the valve V2 to the cathode of V3 includes the resistance condenser combination RS, KS, as shown, or may include a transformer. In an amplifier using feedback the necessary potential from this circuit may be applied to the suppressor grid. The valves may operate on non-linear portion of their characteristics when used for amplifying impulses.
Patent GB-100305-A (GB)
Title: Improvements in Starting Devices for Internal Combustion Engines.
IPC: F02N9/02
Filed: 1916-03-29
Abstract: 100,305. Ljusne-Woxna Aktiebolag. April 16, 1915, [Convention date]. Starting -In engines in which ignition is effected normally by the heat of compression or other non- electric means, starting is effected by electricallyignited mixture produced by forcing an approximately constant quantity of petrol from a receptacle attached to the scavenging-air passage or directly to the combustion chamber, by the air pressure in such passage or chamber. The receptacle 1, of a size sufficient to hold enough carburetting-liquid for starting, is screwed into the scavenging-air passage 2, and is provided with a filling-plug 3, a passage 5, a U-shaped channel 6, 7 and a chamber 8, which communicates with the main fuel space through an orifice 9. Upon an increase of pressure in the passage 2, due to the down-stroke of the piston, the liquid is forced back into the receptacle 1, compressing the air above it. When, on the inlet port opening, the pressure in the passage 2 falls, the compressed air above the liquid expands; a portion passes down the conduit 7 and carries along with it into the passage 2 fuel that has remained in the chamber 8, or is just issuing through the orifice 9. If the carburettor opens directly into the combustion chamber, ignition does not take place before the pressure in the combustion chamber has commenced to decrease.
Patent GB-1001262-A (GB)
Title: Apparatus for feeding printed and like webs and cutting blanks therefrom
IPC: B26D1/38
Filed: 1961-02-08
Abstract: 1,001,262. Feeding webs. MOLINS ORGANISATION Ltd., and J. W. CHALMERS. Feb. 7, 1962 [Feb. 8, 1961], No. 4698/61. Heading B6B. Web 1 is fed along an arcuate guide 6 by pawls 13 engaging the edges of slits in the web, such engagement being ensured by rollers 43 attached to the pawls 13 which depress the edges to be engaged on the non-feeding stroke of the pawls. The pawls 13 draw web from a slack loop accumulated by feed rollers 3, 4, the roller 3 having a flat 5 which permits a spring- pressed roller 2 to withdraw web from the loop to avoid an undue accumulation of slack. A spring- pressed clamp 35 holds the web during cutting by a knife 8 co-operating with a fixed knife 9.
Patent GB-627629-A (GB)
Title: Ship stabilizer
IPC: B63B39/06
Filed: 1947-02-18
Abstract: 627,629. Stabilizing ships. LASSETER, H. P. Feb. 18, 1947, No. 4714. Convention date, Feb. 27, 1946. [Class 113 (i)] In a stabilizer for water-borne vessels comprising rockable vanes spaced outwardly from the hull of the vessel, the vanes are actuable other than by the forces of water agitation acting thereon to open or closed position so that when open they will provide baffles for dissipating the forces of water agitation and when closed will offer substantially no resistance to' the said forces of agitation. The stabilizer consists of rearwardly extending vertical plates 59 spaced outwardly from the sides of the vessel and extending below the waterline, vertical rockable vanes 32 carried by the bow of the vessel, horizontal rockable vanes 31 extending along the sides of the vessel, a vertically slidable grill 73 fixed to the rear of the vessel, rack and gear means for rocking the vanes, means for sliding the grill and supporting it in a raised position, and apertured plates 47 fixed to the side of the vessel and extending rearwardly and downwardly. The vertical vanes 32 are supported outwardly of the vessel by channel beams 33, and the horizontal vanes 31 are supported on channel beams 42 which are supported outwardly from the sides of the vessel by tubular supports 44 secured to the port holes. The grill 73 is fixed to the stern by a support 61 extending rearwardly from the deck of the vessel.
Patent GB-1486993-A (GB)
Title: Mixer valve for hot and cold medium
IPC: F16K11/20
Filed: 1975-02-04
Abstract: 1486993 Valves A H ANDERSSON & CO AB 4 Feb 1975 [28 Feb 1974] 4719/75 Heading F2V In a hot and cold water mixing valve the temperature of the mixed water in the outlet 58 is controlled by valves 56<SP>1</SP>, 56<SP>11</SP> actuated by a thermostat 57 and the rate of flow of the hot and cold water is controlled by valves 42. The latter valves are opened by operating a push button 51 to unseat a pilot valve 50 to allow inlet fluid pressure into chamber 47. Thereafter the inlet fluid pressure acts on the piston 44 against the action of spring 48 to regulate the flow. The valve 42 is closed by pulling the button 51 to the right.
Patent GB-1181957-A (GB)
Title: Housings for Electrical Connectors
IPC: H01R13/115
Filed: 1969-01-28
Abstract: 1,181,957. Two part couplings. AMP Inc. 29 Jan., 1969 [15 Feb., 1968], No. 4742/69. Heading H2E. A connector housing 11 of resilient insulating material comprises an open-ended tubular body having flexible side walls 13 each comprising an outwardly curved portion, stop means 18 extending from a wall at/adjacent an open end of the body and a projection 16 extending inwardly from the upper/lower wall at a location intermediate the ends of the body. To insert a connector in the housing, the walls 13 are pressed towards each other under finger pressure causing the walls 13 to unbow and the walls 12a, 12b to move apart. The connector is inserted (Fig. 4, not shown) until its leading end engages the stops 18, the connector walls (8, Fig. 1, not shown) freely passing the projection 16. On releasing the pressure on the walls 13, the walls 12a, 12b move towards their original positions, the projection 16 enters a space in the connector which is thus locked in position and a rib 14 extending centrally of the wall 12a and terminating in the transverse projection 16 maintains the connecter longitudinally aligned with the housing. To remove the connector, finger pressure is applied laterally to walls 13 to cause the walls 12a, 12b to move apart so that the rib 14 and projection 16 are lifted free of the connector which is then free to be withdrawn. The side walls 13 may be longitudinally corrugated to increase their flexibility. The curved portion may extend over only part of the width of the wall and the wall may have two or more such curved portions.
Patent GB-686884-A (GB)
Title: Liquid-dispensing closure
IPC: B65D47/14
Filed: 1951-02-27
Abstract: 686,884. Dispensing-stoppers. SAVARY, A. Feb. 27, 1951 [Feb. 28, 1950], No. 4777/51. Class 125(iii) Liquids are dispensed from a container, e.g. in drops, by means of a closure comprising a single member of flexible material having a deformable wall and a tubular discharge duct which is closed by a closure connected to the single member by a flexible connection. In Fig. 1, a screw part 2 is fitted with a resilient top 3 having an outlet duct or nipple 5, the tip 6 of which can be cut off and closed by a peg 7 attached to the top 3 by a flexible member 8. Alternatively, a closure cap may be attached to the member 8. The top 3 may fit outside the part 2 or the parts 2, 3 may be integral. The peg 7 or the closure cap and the nipple 5 may be formed with appropriate enlarged parts or constrictions to improve the seal. As shown in Fig. 4, a resilient part 12 is secured to a container by a crimped foil capsule 13 and carries the nipple 5. As shown in Fig. 5, the resilient part 3 is secured to the container, by an encircling ring 14.
Patent GB-890596-A (GB)
Title: Improvements in or relating to bottle inspection systems
IPC: B07C5/34
Filed: 1960-02-10
Abstract: 890,596. Photo-electric inspection of bottles. MEYER MANUFACTURING CO., GEO. J. Feb. 10, 1960, No. 4779/60. Class 40(3). In a system for detecting the presence of dirt in a bottle, light is passed through the bottle and via a rotating reticule to a photocell. The photo-cell output is direct current if the bottle has no dirt particles present but inclues an alternating component if particles are present. Bistable circuits are used to control reject mechanism which rejects a bottle which contains dirt particles or a bottle which is generally dirty so that the direct component of current lies below a certain value. Light from a lamp 20 passes through the bottle to a photo-cell 24. A rotatable disc 30 is interposed in the light pathbetween the top of the bottle and the photo-cell, the disc comprising a number of alternate translucent and opaque areas, Fig. 2. As the disc is rotated the photo-cell output will be steady at a level dependent on the cleanliness of the bottle. A bottle entering the inspection area operates a micro-switch. 42 which sets a bistable circuit 44 to a state indicative of a dirty bottle, i.e. to its reject state. The photocell output feeds through a direct-coupled amplifier and if the output exceeds a certain level the circuit 44 is changed to its other, acceptance, state. If the output lies below that level the circuit 44 remains in its reject state, and when the bottle leaves the inspection area a solenoid 56 causes the bottle to be rejected. If dirt particles are present in the bottle the photo-cell output has an alternating component because a speck of dirt 40, when under a translucent area, reduces the amount of light falling on the cell relative to that when the dirt speck is under an opaque area: Should the bottle inspected be fairly clean yet contain some dirt particles it may be that the photo-cell output has a D.C. level below the acceptance level but which, when combined with the A.C. component due to the dirt particles, is just sufficient to change circuit 44 to is acceptance state. To counter such a condition a gating circuit 48 passes the A.C. component when the D.C. level is below the acceptance level. The signal passes to an amplifier 50, which may be tuned to a frequency equal to the speed of rotation of the disc 30 times the number of opaque segments. A circuit 52 gives an output proportional to the amplitude of the A.C. signal fed to it and this output triggers a bistable circuit 54 to a reject position in which it operates the reject solenoid 56 as the bottle leaves the inspection area.
Patent GB-1114347-A (GB)
Title: Process for gelling latex-coated fabrics
IPC: C08J9/30
Filed: 1966-02-03
Abstract: 1,114,347. Coated sheet material. TEXTILE RUBBER & CHEMICAL CO. Inc. 3 Feb., 1966 .[3 Feb., l965], No. 4779/66. Heading B2E. A method of preparing a gelled latex-coated fibrous laminate sheet material comprises applying a layer of a heat-gellable latex composition onto one surface of a steam-porous fibrous sheet material, and applying steam directly against the other surface of the latexcoated fibrous sheet material, the steam being under sufficient pressure to pass through the sheet material, in order to gel the latex composition. The latex composition may be in the form of a foam. A design may be embossed into the gelled foamed latex layer which may then be cured and dried. The latex composition may comprise an elastomeric latex e.g. a natural or synthetic elastomer such as butadiene-styrene which may be carboxylated, acrylonitrile-butadiene, acrylonitrilebutadiene-styrene, polybutadiene polyisoprene, chloroprene, butyl rubber, natural rubber, polyolefins, acrylates, and carboxylated BUNA rubber (TM); a gelling agent and a polymeric thickening agent, e.g. polyvinyl acetate, polyvinyl pyrrolidone, polyvinyl . alcohol, and polyacrylates. The composition may be applied by knife, bar or roller coated. The fibrous sheet material may be a tufted carpet having a fibrous backing fabric, then foamed latex being applied to the non-tufted surface. As shown in Figure 2, the material 12 carrying latex layer 16 is passed over the open top of a steam box 22 constructed to direct steam upwardly into contact with the uncoated lower surface of the coated sheet material, e.g. the tufted face of a carpet or rug, the steam being under sufficient pressure to bow the coated sheet material slightly upwardly as it passes over the box. Radiant heat from heater panel 26 may be directed downwardly onto the coated surface of the latex-coated fibrous sheet material. The outer surface of the latex layer may be heated in a warm air oven or by directing steam onto it, whilst applying steam directly against the outer surface of the fibrous sheet material. A desired design e.g. grid design 32, 34, may be embossed into the gelled foamed latex layer by passage through a pair of embossing rolls 28, 30 and the coated sheet material then dried and cured. The fibrous sheet material may be a woven or nonwoven fabric of, for example, cotton, asbestos, rayon, and wool, glass fibre mats, mineral wool webs, canvas, and paper.
Patent GB-1201740-A (GB)
Title: Hydraulically operated power steering circuit
IPC: B62D5/09
Filed: 1969-01-29
Abstract: 1,201,740. Power steering arrangements. GENERAL SIGNAL CORP. 29 Jan., 1969 [7 Feb., 1968], No. 4839/69. Heading B7H. In an hydraulic circuit including opencentre metering valve 12 and a lock-out valve 13 responsive to the pressures in inlet and exhaust passages 23, 26 to open and close flow paths between two delivery passages 12a, 12b and respective motor passages 16a, 16b, means 41 to 46 are provided for restricting return flow from the motor passages 16a, 16b to the exhaust passage 26 through the valves 13, 12 while permitting substantially free flows from the delivery passages 12a, 12b to the motor passages 16a, 16b. The means 41-46 comprises check valves 41, 42, which open at e.g. between 100 and 200 p.s.i., between the passages 16a, 12a and 16b, 12b and, for each check valve 41, 42, a by-pass line 43, 44 containing a check valve 45, 46 which opens at e.g. 5 p.s.i. Closing of the look-out valve 13 is delayed by a restriction 39. The means 41-46 and the restriction 39 eliminate shocks in the system due to closing of the lock-out valve. The steering system further comprises a feed back linkage 17 to the metering valve control input device 11a, and a pair of fixed displacement pumps 18, 19 the output of the latter being partly by-passed to an implement circuit to provide a substantially constant output to the valve 12 over a wide engine speed range. In modifications (Figs. 2-4, not shown) the valves 41, 42 are provided between the valves 12, 13 and the lines 43, 44 by-pass the valve 13 in addition to the valves 41, 42.
Patent GB-988713-A (GB)
Title: Copper base alloys
IPC: C22C9/05
Filed: 1962-02-08
Abstract: A workable, creep-resisting alloy has the following percentage composition by weight:- .Mn.8-14 .Al.0.5-less than 3.5 .Fe.0.5-3 .Cu.the balance The alloy may contain Ni up to 2, Sn up to 2 and/or Zn up to 5
Patent GB-225430-A (GB)
Title: Drainer (for household purposes)
IPC: A47L19/04
Filed: 1924-02-27
Abstract: 225,430. Sharp, T. Feb. 27, 1924. Plate, dish, &c. racks.-A domestic drainer comprises side members b, spaced bars e, a rest consisting of members a connected by a lath n and pivoted on an extended bar k, an extended bar m forming stops d for the rest, and a loose tin tray f. Nails g, g<1> retain the sides b in position.
Patent GB-597570-A (GB)
Title: Boats and ships
IPC: B63B1/24
Filed: 1944-03-17
Abstract: 597,570. Hydroplane vessels. PERSSON, H. March 17, 1944, No. 4990. [Class 113 (ii)] A hydroplane vessel, suitable for cargo and/or passengers or as an aircraft carrier, comprises a relatively shallow hull 2 of substantially rectangular cross-section carrying relativelydeep spaced longitudinal keels 4 extending substantially the whole length of the hull, carrying rudders 10 and screw-propellers 12, and provided between and outside them with laterally-extending under-water planes 6, 7, a part 6<1>, 7<1> or the whole of each of which is angularly adjustable to vary its angle of incidence. The keels 4 are integral with the hull 2 and are unapertured except where they accommodate the propellers 12. The driving units for the propellers may be accommodated within the keels. A, B represent, respectively, the water line when the vessel is at rest and under way.