baber/WOPTO huggingface dataset:
Patent GB-117726-A (GB)
IPC: F02D9/00
Abstract: 117,726. Torrens, J. A. Sept. 18, 1917. Charge, moisteni n g ; cylinders, ders, pipes for. - Means for admitting air and, at times, water to the induction p i p e comprise a casing b, a shoulder f on which supports a diaphragm e which has a restricted aperture g and supports a suction-actuated valve o. The valve works in an enlargement d of the casing b, carries a plate s with flanged aperture t and secured by a split ring v, and has holes x in its lower edge to ensure a gradual opening. Air is admitted to the chamber d through ports just above the diaphragm c and through a port j controlled by a shutter 12. Combustible mixture enters at w. Water may be admitted to the casing b by the valve shown in Fig. 4. Water enters at 3 and is controlled by a needle valve 7 carrying a flange 8 the lift of which is adjustable by a split screw 9. Holes 10 admit air and drain away surplus water. Air may also be admitted through an aperture controlled by a shutter 12. The outlet passage 4 is controlled by a sliding plug 14 actuated by the driver through a Bowden or like mechanism. The Provisional Specification describes a construction in which the aperture in the plate s is not flanged and in which there is no water-admission means.
Patent GB-650937-A (GB)
Title: Improved radio detecting apparatus
IPC: G01S7/34
Filed: 1947-05-02
Abstract: 650,937. Radio receiving circuits ; radiolocation. BRITISH THOMSON-HOUSTON CO., Ltd. May 2, 1947, No. 11889. Convention date, May 3, 1946. [Classes 40 (v) and 40 (vii)] A receiver, for use in a pulse radar system and having a gain which increases with lapse of time after the transmission of an exploring pulse, comprises a source of positive pulses synchronized with the transmitted pulses arranged in series with two condensers one of which is connected across the control grid and cathode of one of the amplifying valves in the receiver, the arrangement being such that on the application of a positive pulse grid-current flows thus providing a negative bias voltage on the grid of the valve and reducing the gain thereof, this bias voltage gradually leaking away and restoring the sensitivity of the amplifier. Source 4 which synchronizes the transmission of pulses from the transmitter 1 also applies positive pulses via condenser 39 to the grids of the I.F. amplifying valves 13 and 23 to which received signals are applied via T-R switch 2 and preliminary receiver stages 5. The passage of grid current, during the application of the pulses, charges condensers 22 and 32 negatively, thus reducing the gain of the amplifiers 13 and 23. The charge on these condensers gradually leaks away through the resistance networks shown. The grid-bias of the valves 13 and 23 is adjusted initially by means of potentiometer 37. The output of the receiver is applied to the intensitymodulating grid of a cathode-ray tube having a rotatable deflecting yoke 11 coupled to the aerial 3 to rotate therewith so that P.P.I. display is produced. On account of the increased gain at large ranges, indications of distant objects may be presented on the cathode-ray tube screen without an excessive amount of " clutter " at the centre of the screen obscuring the indications from close objects.
Patent GB-428500-A (GB)
Title: Improvements in or relating to milling machines
IPC: B23C1/027
Filed: 1934-04-21
Abstract: 428,500. Milling-machines. HOPPE, F. E. O., Rorschacherberg, Switzerland.-(Assignee of Schmidtmann, F. W. ; 3, Kastanienweg, Degerloch, Stuttgart, Germany) April 21, 1934, No. 12034. Convention date, April 22, 1933. [Class 83 (iii)] A universal milling - machine having a vertically adjustable headstock, a rotary worktable, and an end support for the arbor, is characterized by the column having a bevelled portion on one side to give the table greater angular travel, the reduction in strength of the column due to bevelling being compensated by an auxiliary pillar placed on the other side, which also serves as an additional guide for the headstock. The column 2, arranged to slide in the axial direction of the arbor 15, is cut away on one side 29<1>, Fig. 5, to permit the work-table 7 to be set at an angle to the arbor without being placed at a great distance from the column. A pillar 20 compensates for the strength reduction of the column and also serves as a guide for the headstock 8 which moves on slideways 9 at the side of the column. The headstock carries overarms 11 to which are attached the arbor supports 12, 13, 14; an adjustable pillar-back 18 being provided to support the end of the overarm and arbor.
Patent GB-1429264-A (GB)
Title: Process for purifying reducing waste waters containing thiocyana tes and thiosulphates
IPC: C02F3/34
Filed: 1973-03-13
Abstract: 1429264 Treating waste water TOKYO GAS CO Ltd 13 March 1973 [13 March 1972] 12071/73 Heading C1C A process for purifying a reducing waste water containing thiocyanate and thiosulphate ions comprises: (i) treating a sewage sludge with an ammoniacal nutritious medium and aerating the mixture to obtain an activated sludge; (ii) acclimatizing the activated sludge with a reducing waste water containing thiocyanate and thiosulphate ions by successively contacting the sludge with portions of the reducing waste water, each of which portions has a higher concentration of thiocyanate and thiosulphate ions than the portion used in the preceding step, each elevation of concentration being carried out after the sludge has become capable of decomposing thiocyanate and thiosulphate ions at the preceding concentration, step (ii) being carried out in the presence of ammoniacal nutritious medium and with aeration; (iii) contacting the acclimatized activated sludge obtained in step (ii) with the reducing waste water to be purified and with further ammoniacal nutritious medium and with non- reducing water (i.e. free from thiocyanate and thiosulphate ions) in an aeration tank and aerating the mixture; and (iv) recovering purified waste water from the aeration tank.
Patent GB-481833-A (GB)
Title: Improvements in power hammers
IPC: B21J7/34
Filed: 1937-04-28
Abstract: 481,833. Power hammers. EUMUCO AKT.-GES. FUR MASCHINENBAU, and SCHNEIDER, A. April 28, 1937, No. 12083. Convention date, May 2, 1936. [Class 83 (iv)] The movement communicated, e.g. by a fluid pressed piston 5 to a trip 1, is transmitted by leverage to a second trip 8 working in an opposite direction the linkage being arranged wholly on one side of the trips. A lever 12 is pivoted at 13 intermediately of its ends and is connected by a link 11, to a lever 10. The latter is pivoted at one end and at the other is connected to a member 14, which transmits movement to the trip 8, through the medium of springs 16. Similar springs 2 are used for the upper trip.
Patent GB-984646-A (GB)
Title: Improvements in or relating to devices for dispensing liquid in measured quantities
Inventor: BERWICK ALBERT GEORGE
IPC: G01F11/32
Filed: 1963-03-27
Abstract: 984,646. Delivering measured quantities of liquid. GASKELL & CHAMBERS (NON- DRIPMEASURE) Ltd. Heading B8N. A device for dispensing measured quantities of liquid from a storage tank 1 comprises a measuring chamber 6 having an inlet 7 communicating with the tank, an axially movable plunger 13 adapted, when lifted, to close the inlet and then uncover an outlet passage 16, 17 in the plunger, and air venting means 23 carried by the plunger and extending through the inlet to the space above the liquid in the storage vessel. The air vent comprises a tube 23 leading into a bore 24 in the plunger, the bore communicating with a right-angled tube 26, 27; the upper end of the tube 27 is arranged, with the plunger in the position shown, to be level with a boss 28 defining an annular channel 29. When liquid flows from the tank into the measuring chamber 6 the air in the latter passes through the pipes 26, 27, 23 to the space above 180 the liquid in the storage tank. When the liquid reaches the top of the tube 27, the air in the channel 29 cannot escape thereby stopping further flow into the chamber. Upon lifting the plunger by means of a container acting against a bar 20, the liquid in the chamber flow therefrom through the outlet 16, 17. In order to vary the quantity dispensed, the length of the tube 27 may be varied.
Patent GB-803427-A (GB)
Title: Improvements in or relating to a process of preparing an alkali metal-titanium fluoride
IPC: C01G23/00
Filed: 1955-04-27
Abstract: Alkali-metal-titanium fluorides are prepared by reacting titanium tetrachloride as a frozen solid with an aqueous solution of alkali metal fluoride.  The reaction product, alkali metal titanium fluoride and alkali metal chloride, may, after dehydration, be used as such as an electrolyte in the electrolytic production of metallic titanium, in which case the amount of alkali metal chloride in the product may be adjusted by effecting the reaction in the presence of alkali metal chloride which need not be the same as that produced in the reaction; alternatively the alkali metal titanium fluoride may be separated from the alkali metal chloride formed.  The amount of titanium tetrachloride supplied at any time should not be more than the stoichiometric amount in relation to alkali metal fluoride present. It is preferred to supply the titanium tetrachloride into the solution from one or more points below the surface thereof.  The amount of water employed for the solution of the alkali metal fluoride should be kept at a minimum in order that the alkali metal titanium fluoride may be crystallized out, if desired, at the termination of the reaction.  According to examples: (I) potassium fluoride was dissolved in water, the solution cooled to about 10 DEG C. and a frozen block of titanium tetrachloride at - 30 DEG  C. placed in the bottom of the reactor and held below the surface of the solution.  A slurry of potassium titanium fluoride and potassium chloride was obtained and the precipitated pure potassium titanium fluoride was removed from the salt solution.  (II) A mixed salt containing potassium titanium fluoride and potassium chloride was obtained as in (I) above except that the aqueous solution initially contained potassium chloride and that the reaction slurry was evaporated to dryness at 115-120 DEG  C. to produce a solid crystalline mixture of potassium titanium fluoride and potassium chloride in a weight ratio of 1 to 2.35.  A further example relates to sodium titanium fluoride production.
Patent GB-1382375-A (GB)
Title: Device for sealing a high-temperature conduit in a wall
IPC: F16L51/03
Filed: 1973-03-13
Abstract: 1382375 Sealing pipes to walls N N ZADEREI A S NIKIFOROV and E P USHANKOV 13 March 1973 12133/73 Heading F2G In order to prevent fluid from leaking from one side of wall 5 to the other, on the failure of only a single bellows, a pair of bellows 8, 12 and their rigid connecting sleeves 1 and 10 nest together to form a sealed annular space 13. The failure of either bellows leaves the other intact to prevent leakage and can be detected on monitoring the fluid pressure in space 13. Conduit 6 is intended for intermittent high temperature use and has thermal insulation 7. It is connected to a wall 17 by an attachment means 18. In another form, a back-to-back arrangement seals a conduit extending through two walls (4 and 5, Fig. 2, not shown).
Patent GB-1473017-A (GB)
Title: Single photo epipolar scan instrument
IPC: G01N21/59
Filed: 1975-03-24
Abstract: 1473017 Photogrammetry BENDIX CORP 24 March 1975 [12 April 1974] 12141/75 Heading H4D In photogrammetric apparatus of the kind wherein the scans of the stereo pair of photographs are along epipolar lines (see Specification 1,363,207), the necessity for scanning the two photographs simultaneously, is obviated by scanning one photograph at a time along predetermined epipolar lines, with the video signal resulting from the first photograph being stored for subsequent correlation comparison with the video signal resulting from the corresponding epipolar scanning of the second photograph. The photograph 64 may be supported on a servo (62, Fig. 1) or hand (60) moved X motion carriage 20 in turn mounted on a servo (42) or hand (40) moved Y motion carriage 16, in turn mounted on a base 14. A light source 202 is fixedly mounted below the photograph with a detector head 204 mounted above and sending the video signals to a memory 70. The servo's are controlled to give the epipolar scanning by a scan control unit 68. To make the required scanning signals less complex, the photograph may be further mounted on a rotatable carriage (78, Fig. 3, not shown) the photograph being thereby rotated such that a single X scan produces the required epipolar scan. A microscope 300 may be incorporated in the base 14 having a viewing  axis coincident with that of the light source and detector to initially position the photograph, the light source for the microscope being in the detector head (Fig. 4, not shown). By making the light source case a line image (Fig. 5, not shown) on the photograph along the Y axis and making the detector multielemented, several parallel tracks either side of as well as the epipolar track can be simultaneously scanned. The resultant several video signals being electronically converted to their epipolar equivalents. By making the lens projecting the line image on to the detector or telephoto lens of variable magnification and varying the magnification as the scan proceeds, the several lines can be made convergent or divergent to be all epipolar, no conversion then being needed (Fig. 6, not shown).
Patent GB-684906-A (GB)
Title: Cushion mounting device
Inventor: FERNSTRUM ROBERT W
IPC: F16F1/50
Filed: 1951-05-24
Abstract: 684,906. Resilient supports. GRAY MARINE MOTOR CO. May 24, 1951, No. 12146/61. Class 108 (iii). A cushion mounting device comprises a support having an upstanding member, an inverted approximately U- shaped channel member having its flanges extending downwardly on opposite sides of the upstanding member with its web extending thereover, means on the channel member for connecting the supported article thereto, an inverted approximately U-shaped member of resilient material disposed between and bonded to the facing surfaces of the members and extending over the top of the upstanding member and a stop member on the support disposed longitudinally of the channel member at the opposite ends thereof and in spaced relationship therewith. In the arrangement shown, as applied to an engine mounting, a base 11 having end fixing portions 14 includes an upstanding bridge portion 24 over which extends an inverted U-shaped channel member 29 having fastening means 32 attached thereto. The ends 30 of the channel-member are spaced from abutment surfaces 18 on the fixing portions 14 and bottom edges 31 of the channel member are spaced above the bottom surfaces of the portions 14, the surfaces extending beneath the bridge portion 24 in substantially the same plane. A U-shaped resilient member 27 is enclosed by the member 29 and is bonded to the latter and to the portion 24. Side walls 26 of the resilient member may be independent and interconnected by a portion having holes therethrough for heads 33 of the fastening means 32.
Patent GB-770449-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1954-04-27
Abstract: 770,449. Magnetrons. M-O VALVE CO., Ltd. GOSS, T. M. and ROBERTSHAW, R. G. April 27, 1955 [April 27, 1954], No. 12243/54. Class 39(1). The cathode supports 19, 20 extending through apertures in the pole-pieces 5, 6 of a multicavity magnetron, are prevented from vibrating by insulators 48, 49 extending from radial slots 46, 47 in the pole-pieces. The insulators 48, 49 may bear at their outer ends against extensions of the anode block 1, or against a deformable part of the envelope so that they may also be used for centering the cathode. The cathode may, however, be centered by screws 30, 31 bearing against envelope sleeves 24, 25.
Patent GB-339918-A (GB)
Title: Improvements in cinematographic cameras
IPC: G03B15/08
Filed: 1930-04-17
Abstract: 339,918. Schabet, L. April 17, 1930. Addition to 314,991. Kinematograph apparatus.-In camera casings constructed as described in the parent Specification, the part b of the casing having holes d through which shafts project is made separable from the main casing a.
Patent GB-648425-A (GB)
Title: Change-speed gear for cycles
IPC: B62M11/06
Filed: 1948-05-05
Abstract: 648,425. Variable-speed gearing. DACIE R. J. BERNADOU, May 5, 1948, No. 12311. Convention date, May 7, 1947. [Class 80(ii)] In an epicyclic variable-speed  gear arranged in the hub 3 of a cycle comprising wheels 5, 6, 6<SP>1</SP> rigid with a countershaft 7 journalled in the hub, the wheel 5 meshing with a wheel 1 secured to the sprocket wheel 4 while the wheels 6, 6<SP>1</SP> co-operate with a double non-rotatable wheel 9, 9<SP>1</SP> slidable on the fixed spindle 10 under the control of a cable 11 sc as to mesh with either of the wheels 6, 6<SP>1</SP>, a disc 12, slidable or the spindle 10 and having peri pheral notches guided on the shaft 7 and on a pair of rods 16 secured in the hub, has holes 14 adapted to be engaged by claws 13 on the gear 1 to give direct drive. The disc is  pushed to the right by the wheel 9<SP>1</SP> and is returned by springs 17 encircling the rods.
Patent GB-527957-A (GB)
Title: Improvements in frequency reducing arrangements
IPC: H03B19/03
Filed: 1939-04-24
Abstract: 527,957. Frequency changing. ASSOCIATED ELECTRIC LABORATORIES, Inc. April 24, 1939, No. 12325. Convention date, May 2, 1938. [Class 38 (ii)] A frequency reducing arrangement having a sustained oscillation at a low frequency when supplied with current from a source of harmonic frequency has a series inductance 13, Fig. 1, connected by means of a relay 22 to a tapping of transformer 23, one end of which is connected to condenser 20 by way of relay coil 2,1. A source of harmonic A.C. 12 charges condenser 20 which operates relay 21 allowing condenser 20 to discharge through transformer primary 24 and inductance 13, the low frequency winding 25 of the transformer supplying the load through a condenser 27. Tappings are provided on the inductance to accommodate variations in supply voltages, and the core is provided with sufficient flux leakage to prevent the generation of unwanted sub-multiple frequencies. The desired flux leakage being obtained by interleaving core laminations in groups rather than singly or by a magnetic shunt operating in a closed magnetic circuit between two series windings. A further modification comprising a combined transformer .and choke arrangement having the transformer winding on the centre limb of the core and two choke windings on the two outer limbs, may have magnetic shunts between the limbs the purpose of which is the limitation of the total power that can be withdrawn from the circuit arrangement and the prevention of sub-multiple frequencies being generated. As a further alternative precaution against overload a transformer having a long magnetic path or a separate leakage transformer in the secondary load circuit may be used. A further circuit arrangement (not shown) provides for back-coupling the condenser 20 to the inductance 13 in order to reduce the harmonic frequency component in the condenser circuit thus giving increased stability.
Patent GB-1397344-A (GB)
Title: Hydraulic piezometers
IPC: G01N33/24
Filed: 1973-03-14
Abstract: 1397344 Measuring pore water pressure in soil SOIL INSTRUMENTS Ltd 13 March 1974 [14 March 1973] 12352/73 Heading G1S A Piezo-meter system for the measurement of pore water pressure in soil and rock has manifolds 3, 4, each with an inlet at one end and an outlet at the other, a number of heads 1 each having two tubes 2, 3 connected to the manifolds via valves 5, 6, a pressure sensing transducer 12 connected to both manifold outlets 7, 8 via valves 9, 10, 11, the inlet and outlet of each manifold being connected to a de-aired water supply via valves A and C for flushing the manifolds and Piezo-meters. In operation, valves 9, 11 are open and the pressure reading from either tube 2 or tube 3 of a Piezo-meter 1 is taken by opening valve 5 or 6. If the reading differs then air must be driven from the system by flushing with de-aired water. Each Piezo-meter is flushed by closing valves 9, opening valves 5, 6 of the meter to be flushed and feeding in de-aired water via valve A and removing it through valve C. Each section of a manifold can be circulated with water independently through valve A and outlet B or valve C and outlet D. The valves on the manifolds may be electrically or pneumatically and remotely operated.
Patent GB-467367-A (GB)
Title: Means and method of producing incandescent images in cathode ray tubes
IPC: H01J29/16
Filed: 1936-05-01
Abstract: 467,367. Cathode-ray tubes. FARNSWORTH TELEVISION, Inc. May 1, 1936, No. 12398. Convention date, May 7, 1935. [Class 39 (i)] In a cathode-ray tube in which an image is produced by raising an open mesh screen to incandescence by bombardment with a stream of electrons, both sides of the screen are so bombarded. In the form shown, cathode 17, modulating electrode 4, and anode 5 produce a modulated electron beam which is deflected by coils 26, 27 so as to scan the incandescent screen 6 which is an open mesh screen preferably of woven or knitted refractory material as described in Specification 467,366. The screen is backed by a glass plate 11 carrying a transparent nickel layer 10 which is maintained slightly negative, e.g. at 75 volts, with respect to the screen 6. Electrons passing through the screen produce secondary electrons at the nickel layer, which are drawn back to the screen at a velocity sufficient to aid in the production of incandescence. In a modification, the layer 10 is maintained highly negative with respect to the cathode, so that the primary electrons passing the screen are caused to return to it. The incandescent image passes through the layer 10 to a projection lens 32 ; alternatively the screen may be inclined so that the image is viewed directly on the other side. The Specification as open to inspection under Sect. 91 includes constructions of knitted and woven refractory screens described in Specification 467,366, and states that the electrode 10 may be omitted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-602469-A (GB)
Title: Improvements in and relating to automatic pilot turn rate control
IPC: G05D1/04
Filed: 1945-05-17
Abstract: 602,469. Electric control systems. JACK & HEINTZ, Inc. May 17, 1945, No. 12458. Convention date, Dec. 15, 1943. [Class 38 (iv)] In a system for turning an aircraft at a constant rate, the direction and rate of turn set into an automatic pilot is controlled from a remote station provided with means for indicating the rate of turn set in. Figs. 1 and 2 show an arrangement in which motor 4, driving turn control 3 of automatic pilot 2, is governed by governor 5. The contacts 20, 21 which are connected in the motor armature circuit through earth and slip ring 16, open if the speed exceeds a predetermined value, i.e. if the centrifugal force on armature 18 exceeds the attraction of solenoid 14. The predetermined speed being set by varying the current supplied through slip ring 8 and variable resistor 36, Fig. 4, in series with ammeter 35, which is calibrated to read rate of turn. This control is mounted in a box 45, together with a motor reversing switch 32 for determining the sense of turn. The control unit 45 may be duplicated in various parts of the aircraft. The actual controlling unit being selected by the pilot, by means of switch 37. Connections to the motor unit are made through junction box 40. A contact protection circuit 33 is provided.