baber/WOPTO huggingface dataset:
Patent GB-176969-A (GB)
Title: Improvements in ventilating apparatus
IPC: F23L17/10
Filed: 1921-01-21
Abstract: 176,969. Hayward, F. E. Jan. 21, 1921. Chimney and ventilating-shaft tops. - A smoke - extractor or draught - producer for application to a chimney pot or the like comprises a skeleton framework of bars f within which is a spindle a carrying wind-vanes band fanblades d, and below the wind-vanes b is a dished deflector c which prevents downdraught. The spindle a has oil bearings e at each end.
Patent GB-363193-A (GB)
Title: Process for producing rubber poor in albumen
IPC: C08C1/04
Filed: 1931-01-28
Abstract: Rubber poor in nitrogen, suitable for the insulation of submarine cables is obtained by heating latex with dilute alkali, e.g. for 3-10 hours, at temperatures below boiling point, preferably 90-100 DEG  C. at ordinary pressure, coagulating the rubber, and washing out the coagulant and the nitrogenous material which has been rendered soluble by the heating.  A suitable quantity of alkali is 3 per cent sodium hydroxide on the rubber content.  Preferred coagulants are those which yield finely flocculent coagula, such as zinc salts. Rubber so heated contains less than 0,05 per cent of nitrogen.
Patent GB-472945-A (GB)
Title: Improvements in resilient sockets or clips for electrical connections
IPC: H01R13/18
Filed: 1937-01-30
Abstract: 472,945. Plug-and-socket couplings. GIROUD, A. Jan. 30, 1937, No. 2779. Convention date, Jan. 31, 1936. [Class 38 (i)] A socket to receive a pin g is built up of two half sleeves a, a<1> having flat extensions b, b<1> which are soldered together and through which passes a spring d adapted to press the sleeves a, a<1> together and retained on them by projections f. A conductor i is attached to the socket by means of a screw and clamp h.
Patent GB-243200-A (GB)
Title: Improvements in electron discharge devices
IPC: H01J7/18
Filed: 1925-01-31
Abstract: 243,200. Western Electric Co., Ltd., (Western Electric Co., Inc.). Jan. 31, 1925. Vacuum tubes.-A device for cleaning-up the vacuum of a thermionic valve consists of a wire or ribbon of metal having a high vaporizing point, such as aluminium, coiled on a ring of refractory metal, such as nickel or molybdenum, and vaporized by means of high-frequency induction heating. The device is particularly intended for use with valves having coated filaments, and the ring 25 on which the getter is coiled has a stem 23 which is secured to the plate of the valve. The arrangement is such that the coil is remote from the electrodes and the vaporized metal is deposited around the exhaust tubulure of the bulb. With valves of low power, magnesium or calcium may be used as. the getter instead of aluminium.
Patent GB-1141981-A (GB)
Title: Iridescent bodies and coating compositions and composite structures comprising them
Inventor: SCHRENK WALTER JOHN
IPC: B44F9/08
Filed: 1966-01-21
Abstract: 1,141,981. Iridescent thermoplastic laminates. DOW CHEMICAL CO. 21 Jan., 1966, No. 2848/66. Headings B5B and B5N. [Also in Division B6] A synthetic resinous thermoplastic body has a thickness of up to 10 mils. and is composed of at least 10 generally parallel layers of transparent thermoplastic resinous material, at least 20% of the layers having a thickness between 0À05 micron and 5 microns and adjacent layers differing in refractive index from each other by at least 0À03. As described a plurality of the bodies is produced either by simultaneous extrusion of a plurality of layers from a single die and stretching of the extrude at thermoplastic temperatures to form a film, or by depositing thin layers of thermoplastic material on a substrate and subsequently stretching the layers from the substrate to form a film, the film in either case being subsequently cut up to form the bodies, which may take the form of elongated strips, rectangles, circles or random shapes. The bodies preferably include at least 50 layers of 0À05 to 1 micron thickness, and a table of thermoplastic materials which can be used for the layers, together with their refractive indices, is given. The bodies are secured by a binder 11 to a substrate 16 of e.g. glass, wood, metal, or polystyrene, to produce an iridescent coating on the substrate. The binder may be a synthetic film forming latex, e.g. white or black latex paint, a lacquer, a drying oil, or a varnish, and is preferably an aqueous dispersion of a polymer of 67 parts by weight ethyl acrylate and 33 parts by weight methyl methacrylate. The bodies are secured to the substrate either by mixing the bodies with the binder and then coating the substrate with the mixture, or by first coating the substrate with the binder and then applying the bodies. The binder or mixture is applied to the substrate by spraying, brushing, dipping, or rolling. Preferably the bodies are applied by an air stream to a coated substrate. The bodies may be pressed into the binder by a felt or non- adherent covered roll. In a further embodiment the substrate is a pressure-sensitive adhesive tape into the adhesive of which the bodies are pressed by a roller.
Patent GB-1091353-A (GB)
Title: Improvements in or relating to primary cells or similar devices
IPC: H01M2/34
Filed: 1966-01-21
Abstract: 1,091,353. Batteries. SOCIETE DES ACCUMULATEURS FIXES ET DE TRACTION. Jan. 21, 1966 [Jan. 22, 1965], No. 2946/66. Heading H1B. A primary cell has a protective seal 8 of polyethylene having a planar portion 9 covering the terminal cap 4 of electrode 3 and a flange portion 10 tightly fitted in opening 6 of the cap 4. The seal 8 is provided by injection moulding (Fig. 2, not shown). Access to electrode 3 is provided by removing seal 8 with the finger nail. Carbon rod 3 is centrally positioned in a zinc cup 1 surrounded by a plastics envelope 2.
Patent GB-705003-A (GB)
Title: Vacuum tight joints
IPC: H01J5/20
Filed: 1952-02-05
Abstract: 705,003. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FILS. Feb. 5, 1952 [Feb. 22, 1951], No. 3055/52 Drawings to Specification. Class 39(1) [Also in Group XXXVI] A joint between metal envelope parts, or ceramic parts, or between either of these and a glass part, is made by coating the non-glass part with a thin film of glass or vitreous enamel, polishing to an optical finish the surfaces to be joined, pressing them together, and heating sufficiently for molecular diffusion to occur without melting. The pressure may be applied mechanically, or by evacuating the envelope. The surfaces to be joined may be planar or curved; the invention may be applied to both butt and lap joints in radio-tubes, photocells, or cathode-ray tubes. Two metal envelope parts joined by an insulating layer according to the invention may be used as a condenser. Specifications 611,649, [Group XXIII], and 699,651 are referred to.
Patent GB-270006-A (GB)
Title: Improvements in and relating to gyroscopic-directional instruments
IPC: G01C19/34
Filed: 1926-02-03
Abstract: 270,006. Brown, S. G. Feb. 3, 1926. Gyroscopic apparatus.-Directional apparatus for use on a ship &c. comprises two azimuthindicating instruments having different error laws, the readings of which are simultaneously indicated or recorded in such a manner that the departure of the instruments from each other is determinable independently of the movements of the vessel. The apparatus shown consists of a North-seeking compass A, having an error in the form of an oscillation on each side of a mean position, and a static azimuth-instrument B, having an error in the form of a progressive departure from the position to which it is initially set. The two instruments have their mountings in rigid relation and their lubber lines oriented similarly or at a given angle. The deviations of the instruments A, B respectively operate motors a, b driving screwed spindles b<1>, c. A slidable frame e carries a gear wheel d gearing with both the spindles so that a pen f on the frame traces on a drum h a curve representing the difference between the deviations of the instruments A, B, and consisting of an undulating line i, Fig. 2, the general direction of which is inclined to a datum line k parallel to the direction of movement of the paper. A mean position line l drawn through the. line i will indicate the rate of azimuth movement of the instrument B while the undulations of the line i about the line l show the departure of the compass A about the true north. The rate of wander of the instrument B may be compensated, either by rotating its lubber line at a rate equal to the rate of wander, or applying torque about the horizontal axis of its gyroscope. In the latter case a. magnet m is mounted on the end of the knife edge bearing of the gyro-casing between coils o on the vertical ring n, the relative currents through the coils being controlled by a contact r<1> on the carriage e. In this case the record consists of an undulating line disposed about a straight line parallel to the direction of movement of the paper.
Patent GB-255742-A (GB)
Title: Improvements in or relating to domestic coal cabinets
IPC: F24B15/04
Filed: 1926-02-03
Abstract: 255,742. Chester, P. Feb. 3, 1926. Coal boxes.-The coal emptied into the top of a coal box is graded by a plurality of transverse grids 3, 8 and may be withdrawn through separate doors 9, 10. To prevent the escape of dust, sector-shaped wings 12 are provided beneath the lid 2. The grid preferably slopes downwardly from both the back and front edges as shown at 8 in Fig. 1.
Patent GB-810166-A (GB)
Title: Improvements in and relating to priming systems for centrifugal pumps
Inventor: HATHAWAY LAWRENCE
IPC: F04D9/04
Filed: 1957-01-30
Abstract: 810,166. Centrifugal pumps; gear pumps. HATHAWAY Ltd., L. March 29, 1957 [Jan. 30, 1957], No. 3235/57. Classes 110 (1) and 110 (2). The inlet of a centrifugal pump is connected to the inlet of a priming pump through a non- return valve and a float-operated valve for preventing liquid from entering the priming pump, and a thrust-transmitting means is arranged between the valves so that when one valve is seated the other valve is held off its seat whereby to prevent the development of a pressure depression between them that would hold them undesirably against their seats. The priming pump is a gear pump 26 which draws gas from the inlet of a centrifugal pump (not shown) through a duct 24, a spring-loaded non-return valve 23, a float chamber 11 and a pair of parallel pipes 13, 14. The use of two pipes 13, 14 instead of one prevents air locks. The priming pump 26 is put into operation by pulling a knob 33 to bring a valve 32 into the position shown in which it restricts a by-pass 31 connecting the inlet and outlet of the pump 26. When the priming is completed, liquid enters the float chamber 11 and lifts a float 16 to close a needle valve 17. An extension 18 on the valve 17 then engages the non-return valve 23 to prevent both valves from being closed at the same time. The priming pump 26 is filled with lubricant which circulates through the pump and by-pass 31 in both positions of valve 32, to lubricate and seal the gear teeth. A vent 35 is provided for the gas drawn from the centrifugal pump during priming.
Patent GB-579277-A (GB)
Title: Regulating device for pressure liquid controlled prime movers
IPC: G05D13/00
Filed: 1943-02-27
Abstract: 579,277. Fluid-pressure servomotorcontrol systems. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 27, 1943, No. 3253. Convention date, Feb. 3, 1942. [Class 135] The pressure-operated steam &c. inlet valves of a turbine coupled to an electric generator are controlled by a regulating device including a valve acted on oppositely by liquid pressures, one of which is controlled by a frequency or speed meter and the other by a wattmeter, a straight-line characteristic between the frequency and the power of the generator thereby resulting. As shown, the device includes a piston valve 7, the oil pressures on the ends I, II<1> of which correspond to the pressures developed in the spaces I, II by the piston valves 5 under the influence of the frequency meter 1 and the wattmeter 3. In order that the valve 7 may function correctly, the pressure in the space I should become effective before that in the space II<1>, and in order to ensure this, a throttle valve 10 is disposed between the spaces II, II<1>. When the load on the generator increases, the meters 1, 3 increase the pressures in the spaces I, II and the valve 7 is first moved downwards so that oil under pressure flows past the,edge 8 into the space III and then to the means controlling the admission of steam to the turbine to increase this supply. The pressure in the space II<1> builds up gradually and assists in the return of the valve 7 to its normal position. To ensure that the valve 7 returns to its normal position at the proper time, the spaces II<1> and III are connected by the spring-loaded pistons 11. The Specification as open to inspection under Sect. 91 comprises also (1) means for varying the inclination of the characteristic ; (2) a valve in the connection to the turbine inlet valves which is adjustable and can serve also as a non-return valve ; (3) an adjustable turbine fly-ball governor ; (4) a manometer; and (5) directions for the procedure necessary for changing over the turbine control from the fly-ball governor to the regulating device. This subject-matter does not appear in the Specification as accepted.
Patent GB-955384-A (GB)
Title: Cathodic protection equipment
Inventor: HUDSON ERNEST GEORGE
IPC: C23F13/04
Filed: 1963-01-25
Abstract: 955,384. Transistor circuits. STANDARD TELEPHONES & CABLES Ltd. Jan. 25, 1963, No. 3255/63. Heading H3T. [Also in Division G3] A transistor amplifier 2 for use in an automatic control system (see Division G3) is controlled by the higher of two inputs, one of which is applied to terminals P, RC1 for amplification by transistors X4, X5, the other being applied to terminals P, RC2 for amplification by transistors X6, X7. The transistors X5 and X7 are connected in series so that the one with the higher impedance over-rides the other to control the amplifier output which is derived from transistor X8. The output from the amplifier may be limited by applying a signal to the base of transistor X10 which is thereby progressively rendered conductive to switch off a normally conductive transistor X9 in series with transistor X8.
Patent GB-468463-A (GB)
Title: Improved powder distributor for horticultural and like purposes
IPC: B65D83/06
Filed: 1936-02-04
Abstract: 468,463. Powder distributers for horticultural and like purposes. COOPER, McDOUGALL, & ROBERTSON, Ltd., and BENNETT, A. W. Feb. 4, 1936, No. 3321. [Class 18] A powder distributer for horticultural and like purposes consists of a metal &c. container a, of circular, rectangular or other shape, with a perforated bottom e, which is resiliently suspended by a spring (not shown), from a handle c so that it can be oscillated, by shaking the apparatus, within an outer casing or frame b. More than one spring may be used, or an elastic band or elastic bands, or one or more compression springs may be interposed between the container and the framework. The bottom e may be a wire mesh screen or a perforated plate and may be removably held by a bar secured to the central rod shown. An additional mesh or additional meshes f may be provided. Movement in one or both directions is limited by stops g, h which may be resilient, e.g. formed of or covered with rubber i. The abutment h is shown in the form of a ring which may have perforations, but spaced buffers may alternatively be used. The springs may be adjustable and trigger mechanism or the like means may be used for moving the container against the action of the springs. The handle may be in any convenient position and may be secured by look-nuts. Container b may be corrugated and be cut away for lightness. A filling opening k may have a screw cap closure or a hinged closure retained by a mouse trap or other spring. Either container may have a closure to cover the mesh e. Legs may also be fitted, and the mesh may be made adjustable.
Patent GB-822887-A (GB)
Title: Calcium trimethylolphenate
Filed: 1958-01-31
Abstract: The invention comprises calcium 2 : 4 : 6-trimethylolphenate which may be prepared by reacting calcium phenate, substantially free of phenol, with a least a stoichiometric amount of formaldehyde at 20-70 DEG  C.  It is possible to prepare the calcium phenate in situ from phenol and calcium oxide or hydroxide and the preferred conditions are to heat a mixture containing at least 3 mols. of formaldehyde per mol. of phenol and not more than 2 mols. of phenol per mol. of calcium oxide or hydroxide at 25-55 DEG  C. The product may be precipitated by adding to the reaction mixture a water-soluble solvent in which the product is insoluble such as methanol, ethanol, isopropanol, acetone, methyl ethyl ketone, ethylene glycol, diethylene glycol, ethylene glycol diethyl ether, p  diethylene glycol diethyl ether, ethylene glycol dibutyl ether, dioxan, morpholine or alkylene polyamines.  The reaction time may range from about 5 to 25 hours, depending on the temperature.  The formaldehyde used may be in anhydrous form, in polymerized form e.g. paraldehyde or as an aqueous solution e.g. formalin, the presence of water is not found to be detrimental to the reaction although an excess may make difficult the recovery of the product. In Examples: (1) 1 mol. calcium oxide is added to a cooled mixture of 2 mols. phenol, 4 mols. 37% formalin and 3 mols. paraldehyde such that the temperature does not exceed 35 DEG  C.; water is added and the solution allowed to stand for 16 hours at 25-30 DEG  C.; it is poured into a 2 : 1 mixture of acetone and isopropanol and the precipitated product collected and dried; (2) a similar reaction is carried out on a larger scale using 10 mols. phenol, 30 mols. formaldehyde and 5 mols. calcium oxide; 2 : 4 : 6-trimethylolphenol and sodium 2 : 4 : 6-trimethylolphenate monohydrate are prepared from this product. Specification 822,886 and U.S.A.  Specification 2,579,329 are referred to.
Patent GB-450818-A (GB)
Title: Improvements in or relating to the adjustment of circuit controlling devices particularly for electric refrigerators
IPC: F25B49/02
Filed: 1936-02-04
Abstract: 450,818. Thermal switches ; automatic circuit-breakers. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London. -(Assignees of Kuhn, C. W. ; 315, North 12th Street, Milwaukee, Wisconsin, U.S.A.) Feb. 4, 1936, No. 3334. Convention date, Feb. 7, 1935. Addition to 434,064. [Class 38 (v)] In a circuit-controlling device suitable for use with an electric refrigerator of the kind described in the parent Specification, the movable contacts 5 are operated through a rod 21 and lever 12 by a bellows 10 acting against an adjustable spring 15. The outer end of the spring 15 rests against a nut 22 screwed on a sleeve 23 loose on a spindle 24 having an operating knob 29. The sleeve 23 is prevented from rotation by the engagement of a slot (not shown), in a flange 25 with a rib 26 on the casing. A pin (not shown), projecting inwardly from sleeve 23 engages a spiral cam slot 35 in spindle 24 so that by rotating the knob 29 the sleeve 23 can be moved axially to vary the loading of the spring 15, the factory setting being effected by moving nut 22. The cam spiral is formed of two parts, a major part of small pitch for controlling the degree of refrigeration by a large movement of knob 29, and a small part of steep pitch so that a short movement of knob 29 in the other direction produces defrosting.
Patent GB-524567-A (GB)
Title: Improvements in the production of metal components by grinding
IPC: B24B5/04
Filed: 1939-02-01
Abstract: 524,567. Grinding. BRISTOL AEROPLANE CO., Ltd., WHITEHEAD, F. W., COVENTRY GAUGE & TOOL CO., Ltd., and HARLEY, S. J. Feb. 1, 1939, No. 3338. [Class 60] Screw threads are ground on a number of blanks simultaneously by bringing them whilst rotating at equal speeds in the same direction into simultaneous and equal contact with a grinding-wheel. A headstock 2 and adjustable tailstock 3 are bolted to a slide 4 movable on ways across the wheel 6. The headstock carries four spindles 25 driven from a pinion 28 through idler 31, these being carried by pivoted links to allow for adjustment of the outer spindles by screw-operated and clamped slides 9. The tailstock spindles are similarly adjustable, may be retracted by knobs 20 against springs 19, and are individually clamped at 23. In modifications the spindles are driven by worm gearing, and the inner pair may be adjustable either instead of, or in addition to, the outer pair.
Patent GB-472520-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03J3/14
Filed: 1937-02-04
Abstract: 472,520. Wireless receiving circuits. MARCONI'S, WIRELESS TELEGRAPH CO., Ltd. Feb. 4, 1937, No. 3344. Convention date, Sept. 23, 1936. [Class 40 (v)] The tuning indicator of a wireless receiver is operated by potentials which vary with departure from exact tune and also with variations in received signal strength, the indicator showing both extent and direction of detuning. Fig. 1 shows a band-pass filter in the I.F. stage of a superheterodyne receiver, which is employed as a source of control voltage for a tuning indicator by applying the primary and secondary potentials to a rectifier bridge GG. At exact resonance the direct-current potentials across the arms AO and BO are equal and opposite; detuning causes the primary and secondary voltage phase relations to vary, and the resulting potential across AB varies in polarity and magnitude with the extent and direction of detuning. The dry rectifiers may be replaced by diodes, Fig. 3 (not shown). Fig. 4 shows the application of such a control circuit to a pair of discharge tubes in a common envelope. The rectifiers G also serve as signal detectors, the audio-frequency signal being taken in parallel from the anode circuits of a pair of triodes, mounted in a single envelope, through condensers C2. The difference in length of the two luminous columns of the discharge tubes is a measure of the detuning ; their mean length is a measure of signal amplitude. Instead of the discharge tube a cathoderay tube may be fed from the double triode, Fig. 5 (not shown), the tube having three deflecting electrodes whereby the position of the ray indicates magnitude and direction of detuning and also carrier wave amplitude. Specifications 456,928 and 472,739 are referred to.
Patent GB-266118-A (GB)
Title: Improvements in rails for supporting garments or the like
IPC: A47B61/02
Filed: 1926-02-06
Abstract: 266,118. Heath, H. M. Feb. 6, 1926. Garment racks.-An extensible device for supporting garments in a wardrobe &c. comprises a sheet metal attachment plate 1 with integral lugs 4 to slidably receive a flat member 5 with downturned ends carrying a rod 7. The forward end of the sliding member is provided with a handle 8 and sheet metal runners 10, slidably arranged. on the rod 7, are provided with eyelets 11 to receive the garment hangers.
Patent GB-844547-A (GB)
Title: Improvements in earth banking devices
IPC: A01G1/12
Filed: 1958-02-03
Abstract: 844,547. Hand tools for banking earth. BOURAIZE, W. Feb. 2, 1959 [Feb. 3, 1958], No. 3420/58. Class 6(2). A hand tool for banking earth, particularly for subdividing trenches in which, for example, tomatoes are to be grown comprises a box-like member 12, open at the top and bottom and having at least one side extended to form a blade 13 for insertion into the ground, and a ram 25 mounted at the lower end of a rod 22 slidable in a tube 20 fixed to the frame 16 of the tool. In use, the blade or blades 13 are inserted in the ground to an extent limited by stops 15, additional soil is fed into the box 12 and is compressed by the ram to form a bank. Catches 27 and a cooperating detent 28 serve to retain the ram in its raised position if necessary.