baber/WOPTO huggingface dataset:
Patent GB-1042768-A (GB)
Title: Structural element of layered construction
IPC: E04C2/288
Filed: 1963-06-18
Abstract: 1,042,768. Laminates. E. GROHMANN. June 18, 1963 [Oct. 23, 1962]. No. 24192/63. Heading B5N. <SP>/</SP> " A structural element comprises rigid external layers 10a, 10b and alternate flexible 12a, 12b and rigid 11 internal layers, the layers being connected together by flexible ligatures 14, such as chains, textile threads, spun glass threads, plastics threads or looped wire rods, the connecting elements passing through the layers and being anchored in the rigid layers 10a, 10b, 11. The rigid layers 10a, 10b, 11 may be plaster or cement and may be reinforced with steel rod, grid or mesh and the flexible layers may be glass wool or foamed plastics material such as polystyrene, polyurethane or polyesters. Loose fabric layers 13a, 13b of jute, textile fabric, wire or spun glass may be interposed between the outer layers 10a, 10b and the flexible layers 12a, 12b. The connecting elements 14 may extend across all the layers as shown in Fig. 1, or separate elements may be used to connect adjacent pairs of rigid layers 10a, 11 and 11. 10b (Fig. 3, not shown).
Patent GB-408142-A (GB)
Title: Improvements in and relating to marine steam power plants
IPC: B63H23/00
Filed: 1933-09-01
Abstract: 408,142. Ships' power plant. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Sept. 1, 1933, No. 24279. Convention date, Sept. 6, 1932. [Class 114.] A marine power plant composed of a number of complete units each comprising steam generator propeller driving mechanism with condenser and axial auxiliaries, is in each case housed by itself as an associated group in a compartment. For ships with single propellers there are provided two independent sets in two separate compartments. Each set comprises steam generators 1, power units, such as turbines, 2, auxiliary units 3 and condensers. The two sets are housed respectively in compartments A, B separated by a transverse bulkhead 5. For twin-screw installations, the unit in compartment A drives one propeller and the unit in compartment B drives the other. Where a number of screw propellers exceeds two, the drives for each propeller are obtained from their own units and in this case in addition to transverse bulkheads certain of the compartments are divided by longitudinal bulkheads. Specification 401,194 is referred to.
Patent GB-1021007-A (GB)
Title: Hardening of photographic protein-containing layers
IPC: G03C1/053
Filed: 1964-06-11
Abstract: An aqueous protein composition comprises a solution of a protein, preferably gelatine, in water containing in dissolved form an acrolein copolymer, said copolymer being (a) a copolymer of 50 to 95 parts by weight of acrolein and 5 to 50 parts by weigh of a vinyl compound containing in the a -position to the double bond at least one carboxyl group or (b) a copolymer having recurring units of the general formula <FORM:1021007/C3/1> wherein X has a value of 10 and Y is an integer of between 1 and 50.  Copolymers (b) are obtained by reaction of strong alkalies with polyacrolein. The copolymers are used in amounts of 0.5 to 4% by weight based on dry gelatine. Copolymers of acrolein with acrylic, methacrylic and maleic acids are exemplified.  The compositions may also contain silver halide emulsions.
Patent GB-934610-A (GB)
Title: Improvements in or relating to means for controlling the amplitude of a signal in anamplifier
IPC: H03G3/24
Filed: 1961-07-06
Abstract: 934,610. Photo-electric control systems. E. K. COLE Ltd., and J. A. JACKSON. June 21, 1962, No. 24398/61. Class 40 (3). [Also in Group XL (c)] The gain of an amplifier is controlled by a light sensitive cell used as a variable resistor in the input circuit, the light affecting the cell being obtained from a lamp energized by electric impulses derived from the ignition circuit of a motor car or the like. Lamp LP2, Fig. 1, shunted by resistor R1, is coupled to the distributer contacts of the car over capacitor C1, auxiliary lamp LP1, and an R.F. suppressor circuit comprising choke CH 1 and shunt capacitor C2. In a car radio receiver light sensitive cell P, Fig. 2, forms with the volume control R2 a potentiometer between the output of the diode detector and the input of audio amplifier V1. Resistor R4 applies a positive bias to the cell P in order to prevent distortion which occurs if the voltage across the cell becomes zero. Lamp LP2 and cell P are placed at either end of an opaque tube in order to exclude extraneous light, a green filter being interposed so that the cell is not affected by red light. The arrangement is such that as the speed of the engine increases, the number of differentiated pulses from capacitor C1 increases and so the brightness of the lamp LP2; this reduces the resistance of the cell P and so increases the volume with receiver. Lamp LP1 acts as a voltage variable resistor, increasing its resistance as the number of impulses increases, and so prevents the rate of increase of illumination of the lamp LP2 being too rapid; this effect may also be produced by replacing resistor R1 by a Zener diode.
Patent GB-161118-A (GB)
Title: Improvements in automatic sprinklers for fire extinguishing
IPC: A62C37/12
Filed: 1920-08-24
Abstract: 161,118. Marshall, W. A. Aug. 24, 1920. Fusible sprinkler heads. -In. a fusible sprinkler head of the type described in Specification 25541/04, comprising two togglelevers E, F and a trip plate G. an eye H on the lever F passes through a bevelled notch in the end of the plate G, some of the fusible solder being wedged into the bevelled notch so as tc engage the eye II and form a, joint between the thickness of the plate G.
Patent GB-1307653-A (GB)
Title: Television systems
IPC: H04N7/087
Filed: 1971-04-19
Abstract: 1307653 Multiplex radio signalling INTERNATIONAL STANDARD ELECTRIC CORP 19 April 1971 [25 March 1970] 24508/71 Addition to 1306467Heading H4L In a television transmission system of the type disclosed in the parent Specification, the transmitter includes a storage device to store during n frame periods where n is greater than 1, a plurality of audio signals occurring during those periods and is arranged to transmit the stored signals during normally unused line sweeps between the end of said n frame periods and the start of the next frame, a line identification signal being derived from the transmitted signal at the receiver to select a desired one of the audio signals. As described, Fig. 1 (not shown), two different signals are transmitted, each signal being stored in separate stores over two frame periods, (n= 2) so that the two signals are interlaced frame-by-frame, but more than two frame periods may be used. When storage extends over two frame periods in systems employing line interlacing the phase relationship between the line sync. pulses and the frame sync. pulse may be used to provide an identification signal of half the frame frequency, Fig. 2 (not shown). When the storage of a signal extends over more than two frames special line identification signals must be transmitted. As described, where the storage extends over n frames, a high frequency sinusoidal identification signal is transmitted between two of the equalizing pulses of the frame sync. signal. At the receiver, Fig. 3 (not shown), a tuned circuit responsive to the identification signal is gated by the frame sync. signal and the output rectified to produce a D.C. identification signal. Fig. 4 shows a transmitter circuit where n=2. With switches 37, 38, 41, 42 as shown audio signals on lines 32, 33 are supplied to stores 35, 36 respectively, at a low rate f T  supplied via terminal 39. During this period the video signals from line 34 are supplied to the output 43. A counter 44 counts line sync. pulses applied at 48 and is reset by frame sync. pulses applied at 47. Oppositely polarized identification signals are supplied via terminals 49, 50 to AND gates 45, 46 respectively. Gate 45 transmits a control signal to change over the switches 37, 42 during line one of the "first" frame blanking interval and the samples stored at 35 are read out in timecompressed form at a high frequency F T  applied to terminal 40 after which switches 37, 42 return to their original position. During line two of the second frame blanking interval, gate 46 transmits a signal to change over the switches 38, 41 so that store 36 is read out at high frequency F T . Other sound channels may be transmitted by using further AND gates and outputs of the counter. A similar arrangement is used at the receiver, Fig. 5 (not shown), for two audio channels and, Fig. 6 (not shown), for more than two audio channels. These circuits are controlled by the above mentioned identification circuits, Fig. 2 or 3 (not shown). The storage devices may be of the type disclosed in Specification 1,307,652.
Patent GB-188454-A (GB)
Title: Process for obtaining alkali salts from felspar and like minerals
IPC: C22B26/10
Filed: 1921-09-16
Abstract: Alkali-metal compounds, obtaining from complex silicates Insoluble minerals containing alkali-metals, such as felspar, are heated with fusible salts at a temperature not higher than about 650 DEG  C., or less if the heating is effected under pressure.  The reaction-mixture is extracted with water and the soluble alkali salts separated in known manner.  Suitable fusible salts mentioned are the chlorides of calcium, barium, iron, zinc, manganese, and aluminium; magnesium sulphate and barium nitrate.  Mixtures of these salts may be employed.  In an example, 100 parts of ground felspar are heated with about 200 parts of calcium chloride at a temperature of 650 DEG  C., and the resultant mass extracted. Hydrated calcium chloride may be used if the heating is effected under pressure.
Patent GB-1089292-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: WOODBRIDGE LEONARD ALBERT
IPC: H01J29/18
Filed: 1963-06-21
Abstract: 1,089,292. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 10, 1964 [June 21, 1963], No. 24786/63. Heading H1D. A cathode - ray tube with an electrostatic deflection system has a target having a straight boundary or marker line which can be rotated in a plane orthogonal to the axis of the beam to bring the target into register with the raster. A rectangular screen 3 is mounted on a thin transparent, e.g. glass or support 4 which carries members 6 running in a grooved member 5. The support also carries a magnetic member 7 by which the support can be rotated by means of an external permanent magnet. The members 5 and 6 may be coated with solder and so secured together by heating. The grooved member 5 may be replaced by a groove formed in the tube envelope and the support 4 may be rectangular with the members 6 mounted at the corners. The screen may be aluminized or the phosphor deposited over a grid of marker lines constituting a graticule deposited on the support.
Patent GB-961966-A (GB)
Title: Improvements relating to power presses and clutch devices therefor
Inventor: DEYKIN RONALD FREDERICK
IPC: F16D25/065
Filed: 1959-07-21
Abstract: 961,966. Friction clutches. HORDERN MASON & EDWARDS Ltd. Oct. 21, 1960 [July 21, 1959], No. 24994/59. Heading F2C. A clutch actuating unit consists of a radial cylinder 11 housing a piston 22, 27, 28 and friction pad 20, the arcuate end face 21 of which is projected beyond the open end of the cylinder upon the admission of pressure fluid through an inlet port 41, the piston being connected to a ring 29 frictionally engaging the interior wall of cylinder 11 through a spring washer 40 which, in the event of wear of pad 20, is flattened upon the admission of the pressure fluid so that ring 29 advances into the cylinder with the pad. The unit may be incorporated in the clutch-brake assembly for a power press as described in Specifications 941,306 and 941, 307.
Patent GB-1156222-A (GB)
Title: Polycarbonates
IPC: C08G64/02
Filed: 1966-06-06
Abstract: 1,156,222. Polycarbonates. UNION CARBIDE CORP. 6 June, 1966 [7 June, 1965], No. 25047/66. Heading C3R. Polycarbonates are made by reacting phosgene with a cyclobutanediol or an alkyl substituted cyclobutanediol at 10‹ to 150‹ C. in the presence of 2 to 20 parts per part of diol of a liquid organic compound containing a sterically unhindered heterocyclic, tertiary nitrogen atom, at least the ultimate 1% of the stoichiometric amount of phosgene being added at a rate not to exceed 1% of the stoichiometric quantity per 4 minutes. Up to 50 mol. per cent of the cyclobutanediol may be replaced by other diols, e.g. C 3-10  alkylene glycols, di- or tri-ethylene glycol, cyclopentanediols, cyclohexanediols, furanediols, cyclohexanedimethanols, cyclohexane - diethanols, bis - (hydroxyethoxy) cyclohexanes and dipropylcyclohexane - diols. The heterocyclic organic compound may be a substituted or unsubstituted pyrimidine, pyridine, N-alkyimidazole or quinoline. The reaction medium may also include an inert solvent or diluent, e.g. a hydrocarbon or chlorinated hydrocarbon. The phosgenation may be effected (i) by a continuously slow rate of addition of phosgene at 50‹ to 130‹ C., the polycarbonate being heated at 80‹ to 130‹ C. when reaction is effected below 60‹ C.; (ii) first at a rapid rate at 10‹ to 60‹ C. and then at a slow rate at 100‹ to 110‹ C., the latter preferably being during the addition of the last 1 to 10% of the stoichiometric amount of phosgene; or (iii) first at a fast rate at 10‹ to 40‹ C. during which 30 to 49% of the stoichiometric amount of phosgene is added, secondly at a further fast rate at 60‹ to 75‹ C. during which 50 to 69% of the stoichiometric amount of phosgene is added, and thirdly at a slow rate at 100‹ to 130‹ C. during which 1 to 10% of the stoichiometric amount of phosgene is added. Examples describe the preparation of a polycarbonate of 2,2,4,4 - tetramethyl - 1,3 - cyclobutanediol or a mixture thereof with 1,4-cyclohexanedimethanol. Reference has been directed by the Comptroller to Specifications 925,139, 962,913, 1,011,283.
Patent GB-1317596-A (GB)
Title: Convertible pushbutton
IPC: G05G/
Filed: 1970-05-26
Abstract: 1317596 Hand actuating devices for switches; latching switches TELEMECCANICA ELETTRICA OFFICINE MECCANICHE RIUNITE SpA 26 May 1970 [28 May 1969] 25068/70 Heading H1N A push-button operating device which can be readily converted for retractive or latching function comprises a body 10 in which a shaft (12, Figure 2, not shown), is slidable by pressure F on a head 11 (shown fully depressed), said shaft having a transmission member 13 on its other end appropriately shaped to engage releasably with a resilient element 14 removably located between a base flange 15 of body 10 and a retractive contact unit not shown. As shown, the member 13 is a disc and element 14 is annular with slots 18, 19, 20, 21 defining two resilient portions 16 and 17 which are formed with internally projecting ribs (23, 24, Figs. 3 and 4, not shown) which overlap and retain the disc 13 in the operated condition. The head 11 has an edge 25 by which it can be gripped for manual retraction. To render the device non- latching the resilient element 14 is merely omitted.
Patent GB-425230-A (GB)
Title: Improvements in or relating to the manufacture of hydroxybenzenes
IPC: C07C37/02
Filed: 1933-09-11
Abstract: o-Dihydroxybenzenes are obtained by the hydrolysis of an o-dihalogenobenzene by heating with barium or strontium hydroxide, water and preferably a copper catalyst such as cuprous oxide at superatmospheric pressure.  Preferably oxygen is excluded, e.g. by the addition of a reducing agent such as sodium formate, sodium hydrosulphite or sodium formaldehyde sulphoxylate to the reaction mixture.  Suitable starting mixtures include o-dichloro-, o-dibromo and o-diiodobenzenes and their alkyl, alkoxyl, hydroxyl and nitro derivatives.  The barium or strontium hydroxides may be used as such or obtained by double decomposition of soluble barium or strontium salts such as chlorides, bromides, iododides or acetates, with alkali hydroxides such as potassium, sodium or lithium hydroxides.  In examples, o-dichlorobenzene is heated with barium or strontium hydroxide octahydrate, water and cuprous hydroxide in the presence or absence of sodium formate to yield o-dihydroxy benzene.  The Specification as open to inspection under Sect. 91 also referred to the use of catalysts which promoted the removal of halides from organic compounds or the Ullman reaction such as chlorine, bromine and iodine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-244225-A (GB)
Title: Improvements in means for affixing letters and the like for advertising and like purposes
IPC: G09F7/16
Filed: 1924-10-22
Abstract: 244,225. Bale, H. M. Oct. 22, 1924. Signs, supporting and securing.-In a sign in which letters or like elements are attached to a backing plate by members attached to the rear of the letter or the like so as not to disturb the front surface thereof, each letter 1, Fig. 3, has formed on its back one or more depressions 3 in each of which is secured the head 5 of a pin 4 by upsetting the edge of the depression as shown at 6, Fig. 4, by means of a punch or like tool. The letter is secured to a backing 2 by passing the pins through apertures 7 in the backing and bending their points over washers 8. Solder or other soft metal is then applied to the washers to cover the bent ends of the pins.
Patent GB-443247-A (GB)
Title: Washing screw stoppers of bottles
IPC: B67B1/03
Filed: 1934-09-01
Abstract: 443,247. Washing bottle-stoppers. FLOWER, A. L., Union Place, Marshall Street, Leeds. Sept. 1, 1934, No. 25239. [Class 138 (i)] Screw-threaded bottle-stoppers are supported in wire cages in a pan which is rotated and thereby uncovers and closes ports in a centrallydisposed valve body so that at least two different liquids successively flow through the ports to outlets located externally of the cages whereby the stoppers are exposed to successive sprays of these liquids. In the construction shown, a rotatably-mounted pan 1 is provided with a toothed rack 2 meshing with a driven toothed wheel 3. The pan is divided into four sections, each with two wire cages 18<1> containing stoppers 13. The cages are located between two rows of spray nozzles 8, the inner row being connected to a passage 12 communicating with ports 10, and the outer row being connected to a passage 17 communicating with ports 15. The ports 10, 15 are adapted, during rotation of the pan 1, to register with ports 9, 14, respectively, formed in a central stationary tap 4, and in communication with three channels in the tap connected respectively to a supply of caustic soda solution, hot water, and cold water. Near the base of the pan is a plate 21 formed with an elongated slot 22 through which the lowermost stopper of each cage falls when opposite the slot, the other stoppers meanwhile being held in place by a spring 23. Means may be provided for returning sprayed liquid to its respective supply pump or to waste.
Patent GB-481807-A (GB)
Title: Improvements in fuel injection pumps for internal combustion engines
IPC: F02M59/46
Filed: 1936-09-18
Abstract: 481,807. Fuel - injection pumps. BOSCH AKT.GES., R. Sept. 18, 1936, No. 25401. Convention date, Oct. 17, 1935. Addition to 460,196. [Class 102 (i)] A modification of the delivery valve of fuelinjection pump described in the parent Specification wherein the maximum amount of fuel delivered rises or keeps constant from low to medium engine speeds and falls from medium to high speeds. The valve has an annular groove 16 between the seat 12 and the grooves 17 so that during the initial opening the fuel passes through a throttled opening of constant cross-section until the area of the passage is controlled by the groovesÀ 17. In a modification, a piston 18 is arranged between the seat 12 and the groove 16. In further modifications, the surfaces and grooves controlling the cross-section of the passage for the fuel are arranged in the valve guide.
Patent GB-845491-A (GB)
Title: Copper-contanining disazo dyestuffs
IPC: C09B35/14
Filed: 1958-08-07
Abstract: The invention comprises the copper complexes of disazo dyes of formula:  <FORM:0845491/IV (c)/1> wherein R is a naphthol-monosulphonic acid radical having the hydroxyl group in orthoposition to the azo group and being free of other substituents, and "alkyl" is an alkyl radical containing 1-4 carbon atoms.  They are prepared by coupling 1 mol of a tetrazotised 3 : 31-dialkoxy -ordihydroxy -ordichloro -4 : 41-diaminodiphenyl with 1 mol of a 1-alkoxy -8-naphthol -3 : 6- disulphonic acid and 1 mol of a naphthol-sulphonic acid and coppering the resultant disazo dye. If the tetrazo compound contains 3 : 31-alkoxy groups the coppering is conducted under de-alkylating conditions, and if it contains 3 : 31- chloro substituents, with exchange of the chlorine atoms for hydroxyl groups as described in Specification 388,332.  The dyes give blue shades on cotton and regenerated cellulose.  In examples 4 : 41- diamino -3 : 31- dimethoxy-diphenyl is tetrazotised, coupled with 8-ethoxy -1- naphthol -3 : 6- disulphonic acid, then with 2-naphthol -4-, -6- or -7- sulphonic acid or 1-naphthol -4- or -5- sulphonic acid and the disazo dye so obtained coppered.
Patent GB-440750-A (GB)
Title: Improvements in fuel burning methods and apparatus
IPC: F23D11/08
Filed: 1934-09-04
Abstract: 440,750. Spray burners. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Timken Silent Automatic Co. ; 100, Clark Avenue, Detroit, Michigan, U.S.A.) Sept. 4, 1934, No. 25434. [Class 75 (i)] [See also Group XIII] A method and apparatus for the combustion of liquid fuel shown in Fig. 8 as applied to a converted coal-fired boiler and in Fig. 9 as applied to an oil-fired boiler consists in distributing the fuel in unatomized form on to vaporizing surfaces of special construction arranged adjacent to but spaced from the boiler wall where it is ignited and met by streams of air which sweep over the hearth of the combustion chamber. Oil is supplied by a pipe 5 to the cup 90 of a rotary burner 3 and is delivered through radial tubes 6 in the form of unatomized droplets towards the periphery of the hearth 16. Air for combustion passes through a conical shutter 8 and is delivered towards the periphery of the hearth by fan blades 10. The fuel and air are projected against metal segments 25 clamped end to end to form a continuous combustion ring spaced from the wall of the furnace. Each segment, as shown in Fig. 4, has a gutter 27, an oil impact wall 28 and an air directing wall 29. The segments are connected by clamps 31 formed of sheet metal and consisting of a strip 32 shaped to the contour of the segment 25 and provided with ends 33, 34 engaging upper and lower portions of adjacent segments. A vertical supporting plate 31 is provided with lugs 37, 38 spot welded to the strip 32 and with a flange 40 having a finger 41 adapted to rest on the hearth. Light metal grills of the form shown in Fig. 5 may be supported on the impact walls 28 of the segments 25. Each grill comprises a rectangular structure 47 provided with passages 48 and supporting members 50, 51. In the modification shown in Fig. 9 the fan blades 87 are secured to the dish-shape cover 9a which terminates in a flange 88 below which are the impelling portions 10a of the blades. Apertures 89 are provided adjacent the oil tubes 6. The hearth structure comprises a plate 60, heat-insulating material 63 and a hearth plate 67 supported by U-shape members 65 and provided with a peripheral flange 70 arranged beneath a depending portion 73 of the wall 72. Ignition devices described in Specification 440,751 are associated with the segments 25. U.S.A. Specifications 1,655,016, 1,707,474, 1,856,720, 1,882,694, 1,886,675, 1,888,693, 1,909,007, 1,965,054, and Reissue Serial 17991 are referred to.