baber/WOPTO huggingface dataset:
Patent GB-1552588-A (GB)
Title: Circuit arrangement for developing a twice-line frequency signal from a chrominance sub-carrier in a colour televisiion system
IPC: H04N9/45
Filed: 1978-02-23
Abstract: With the circuit arrangement, the double line frequency which is used as the reference quantity for picture auxiliary signals can be derived from a colour TV signal according to the CCIR PAL standard by coupling the colour carrier frequency with the horizontal frequency via a so-called quarter-line offset, and by using a signal derived from the colour carrier by frequency division and multiplication. The signal (2f<!>H) derived from the colour carrier (F) is fed to the trigger input (A) of a monostable multi-vibrator (15). The vertical frequency (fV), which is divided in the ratio 2:1, is fed directly to the control inputs (J, H) of the multi-vibrator (15), as a 25Hz exponential voltage, via a pulse former (12), an integration stage (13) and a time-specifying resistor (14). On the other hand, it is fed to the control inputs with the interposition of a capacitor (16). The time-specifying resistor (14) and capacitor (16) are dimensioned so that exactly double the line frequency (2fH), in the form of the positive or negative edges of the output pulses (c) of the monostable multi-vibrator (15), is available at the output (Q, Q) of the monostable multi-vibrator (15), under the influence of the vertical frequency (fV) and the frequency (2f<!>H) which is fed to the trigger input (A) of the monostable multi-vibrator (15), and which differs from the double line frequency (2fH). <IMAGE>
Patent GB-197124-A (GB)
Title: Improvements in portable structures
IPC: E04B1/344
Filed: 1922-03-13
Abstract: 197,124. Wylie, H. N. March 13. 1922. Roofs and girders.-The framework of portable roofs and girders is formed from a number of triangular units comprising two rigid sides hinged together and hinged or removably connected to the third side which may be rigid or flexible, all the members lying substantially in one plane, and when disconnected and folded, lying parallel to each other. The members b, d, e, c, a are jointed together at the points B, D, C, A respectively so that on disconnecting the pin or bolt at E they can be folded together. The members a, b, may be flexible or jointed at the centre in which case no disconnection is necessary before folding. The frame units are adapted to be connected together at the points F, G and additional members f, f<1> are provided as shown in Fig. 3.
Patent GB-827586-A (GB)
Title: Improvements in or relating to the treatment of water
Inventor: PUGH NORMAN JOHN
IPC: C02F1/52
Filed: 1955-03-15
Abstract: A sol for use in the purification of an aqueous liquid is produced by admixing separate aqueous streams of sodium silicate and a metal salt, e.g. aluminium sulphate, ferrous sulphate, or ferric chloride by means of rotary paddles, or a pump or impeller. The pH of the sol produced may be 5.5-8.5, and is preferably 7-8.  The apparatus (not shown) comprises means for adjusting the flow of each solution to a desired value and for adjusting the retention time of the sol before use.  The sol may contain 0.8-1.2% of silica.  An example is given.ALSO:A sol produced by admixing separate aqueous streams of sodium silicate and a metal salt, e.g. aluminium sulphate, ferrous sulphate, or ferric chloride (see Group III) is added to an aqueous liquid as a coagulant aid.  0,4-2,6 parts of SiO2 per million parts of water may be employed.  The sol may be added between two successive additions of coagulant.
Patent GB-773704-A (GB)
Title: Closure construction
IPC: B65D41/12
Filed: 1955-03-15
Abstract: 773,704. Closure caps. OWENS-ILLINOIS GLASS CO. March 15, 1955 [Sept. 23, 1954], No. 7493/55. Class 125(3). A closure cap 20 with skirt 20b the lower end of which is curved to hold a gasket 11 has the terminal portion 20g of the skirt curled inwardly and upwardly and then outwardly to be perpendicular to the inclined portion 20e of the skirt so that the gasket fills the curled portion 20f and lies beneath the retaining rib 12a of the container when assembled thereon.
Patent GB-699763-A (GB)
Title: Tank constructions for air-break electric circuit breakers
Inventor: ELLISON GEORGE
IPC: H01H33/10
Filed: 1951-04-02
Abstract: 699,763. Air-break switches, arc rupturing in switches. ELLISON, Ltd., G. March. 28, 1952 [April 2, 1951 No. 7549/51. Class 38 (v) A tank construction for an air-break switch having its contacts within a tank and its operating mechanism outside the tank, comprises a tank a, a cell or cells of insulating material for containing the contacts b, c, and a plurality of metal bodies g attached to the walls e or base of the cell or cells, the bodies having sufficient thermal capacity to effect by cooling the extinction of the arcs formed on separation of the contacts and the cell or cells and the tank being arranged to provide air passages open to the atmosphere. In the Figure the bodies g are attached to the walls e which are perforated and spaced from the walls of the tank to provide passages i.
Patent GB-251071-A (GB)
Title: Improvements in electric switches
IPC: H01H21/12
Filed: 1925-03-21
Abstract: 251,071. Edmonds, Ltd., G., and Edmonds, H. March 21, 1925. Contacts.-The fixed contacts 11 and the fittings 12 carrying the movable contacts such as the blades 13 of a knife switch are mounted on an insulating base 1 by means of depending extensions 20 adapted for sliding or spring engagement with correspondingly shaped projections 2, 3, 4 formed on the base 1. Displacement of the contacts or fittings after engagement with the base is prevented by bending over ears 23, 24 formed on the extensions 20. In the case of a knife switch the pivotal mounting for the blades 13 comprises tubular pins 27 journaled in a U-shaped member 25 clipped at 26 to the inwardly turned walls of the fittings 12, and the fixed contacts are provided with integrally formed stops 18 for the blades. Binding screws 22 are provided on the contacts 11 and fittings 12, and correspondingly located holes for the leads are provided in the base.
Patent GB-1205896-A (GB)
Title: A method of producing foamed silicate minerals
IPC: C03B19/08
Filed: 1968-02-16
Abstract: 1,205,896. Foamed silicates. GRUNZWEIG & HARTMANN A.G. 16 Feb., 1968 [18 Feb., 1967], No. 7667/68. Headings C1J and C1M. Foamed silicates are produced by heating a mixture of pulverized silicate mineral which contains a metal oxide capable of assuming at least one lower stage of oxidation and a propellant, e.g. carbon, to a temperature above the softening point but below the melting range of the silicate, so that the foam is formed by the reduction of the metal oxide, e.g. Fe 2 O 3  in the case of basalt, by the propellant which is thereby oxidized to a gaseous reaction product, e.g. CO and CO 2 . The silicate mineral can be volcanic rock such as basalt, diabase, diorite. The carbon propellant can be in finely dispersed elementary or combined form such as soot, graphite, oil, powdered coke, brown coal or hydrocarbon. The sintering and foaming preferably proceeds at a temperature in the range 1000‹ to 1200‹ C. for volcanic rocks. The silicates may be foamed in the form of spherical or beadlike bodies or as shaped bodies, e.g. plates or cylindrical shells.
Patent GB-1445320-A (GB)
Title: Phenylbutanol derivatives processes for their preparation and compositions containing them
IPC: C07C29/14
Filed: 1975-02-24
Abstract: 1445320 Phenylalkanol derivatives MERCK PATENT GmbH 24 Feb 1975 [1 March 1974 14 June 1974 3 July 1974 26 July 1974] 7682/75 Heading C2C Novel phenylalkanol derivatives of the general formula wherein Z is 4-biphenylyl or wherein Y is -COOR<SP>2</SP> or -CH 2 OR<SP>3</SP>, R<SP>1</SP> is H, F, Cl or Br, R<SP>2</SP> is H or A, R<SP>3</SP> is H or C 1-6  alkanoyl and A is C 1-6  alkyl, and, when Y is -COOH, physiologically acceptable salts thereof are prepared (a) by treating Z-Q, where Q is -C(CH 3 )(OH)-CH 2 -W or in which W is a functionally modified -COOH or -CH 2 OH group, but is different from Y, and X is Hal or a functionally modified hydroxyl group (Hal is Cl, Br or I), with a solvolysing agent; (b) by reducing a compound of the general formula wherein E is a free or functionally modified - COOH or -CHO group or a benzyloxymethyl group, but is different from Y in the desired product; (c) by oxidizing (d) when Z is other than 4-biphenylyl, by reacting a compound of the general formula or a salt thereof with a compound of the general formula or a salt thereof, wherein one of Q<SP>1</SP> and Q<SP>2</SP> is OH and the other is X; and (e) when Z is other than 4-biphenylyl, by diazotizing and halogenating ArC(OH)CH 3 )-CH 2 -Y, wherein Ar is and optionally treating the product with a reducing, oxidizing, solvolysing, esterifying or transesterifying agent to convert Y to a different value and/or, when R<SP>1</SP> is H in the product, chlorinating or brominating it to give a product in which R<SP>1</SP> is Cl or Br and/or when the product contains a free carboxyl group, treating it with a base to form a physiologically acceptable salt. 3 - Acetoxy - 3 - p - biphenylyl - 1 - butanol is prepared by reacting 3-bromo-3-p-biphenylyl-1- butanol with potassium acetate. Pharmaceutical compositions having antiinflammatory activity comprise, as active ingredient, a phenylalkanol derivative of the first general formula above or a physiologically acceptable salt thereof, and an inert, physiologically acceptable carrier.
Patent GB-813333-A (GB)
Title: Improvements in keto-steroids
IPC: C07J75/00
Filed: 1956-03-12
Abstract: The invention comprises cyclopentanophenanthrene compounds of the general formula: <FORM:0813333/IV (b)/1> wherein R1 represents hydrogen or a methyl, ethyl, benzyl, ethinyl, cyclopentyl, propyl, butyl, amyl, isoamyl, vinyl, acetyl, propionyl, butyryl, benzoyl, palmityl or cyclopentylpropionyl group, and a process for the preparation of 16-keto-steroids by reacting an aryl sulphonyl halide, e.g. p-toluene-sulphonyl chloride with a 17 - hydroxy - 16 - keto - steroid of the general formula: <FORM:0813333/IV (b)/2> wherein the A ring may contain no double bond or one, two or three double bonds, the B ring may contain no double bonds or one or two double bonds, Y represents hydrogen or the methyl group when C10 carbon is not joined by a double bond to another carbon atom, and X represents an hydroxy, acyloxy or ether group, to form the corresponding 17-aromatic sulphonate-16-keto-steroid, reducing this aromatic sulphonate with an alkali metal aluminium hydride, e.g. sodium borohydride or lithium aluminium hydride, to form the corresponding 17 - aromatic sulphonate - 16 - hydroxy - steroid and then treating with an alkali metal hydroxide, e.g. alcoholic potassium hydroxide, to split off the 17-aromatic sulphonate group and form the 16-keto group.  The above process may be modified by any of the following ways: (a) in the case where the 17-hydroxy-16-keto steroid has a free hydroxy group at the 3-position, the aromatic sulphonate ester group formed at the 3-position as the result of the reaction with the aryl sulphonyl halide may be selectively hydrolysed with dilute sulphuric acid to a hydroxy group; (b) the hydroxy group at the 16-position may be acylated prior to the step of splitting off the 17-aromatic sulphonate group; (c) in the case where the 16-keto steroid final product has a free hydroxy group in the 3-position, the free hydroxy group may be etherified or esterified; and (d) the 16-keto steroid product may be treated with hydroxylamine hydrochloride, semicarbazide or methoxylamine hydrochloride to form the corresponding 16-oxime, -semicarbazone or -methoxime steroid. In the examples, 1,3,5(10)-estratrien-3-ol-16-one and the corresponding 3-methoxy compound, and 5-androsten-3-ol-16-one and the corresponding 3-methoxy, 3-acetoxy and 3-benzoyloxy derivatives and the corresponding 16-oxime, 16-semicarbazone and 16-methoxime derivatives are prepared.  Other 3-ether groups in D 5-androsten-16-one may be the ethoxy, propoxy, butoxy, ethinyloxy, cyclopentyloxy and benzyloxy groups, and other 3-acyloxy groups present in D 5-androsten-16-one may be the propionoxy, butyroxy, palmitoyloxy and cyclopentylpropionoxy groups Specifications 813,334 and 813,335 are referred to.
Patent GB-1147833-A (GB)
Title: Instrument for measuring activity per unit length of elongated radiation emitting body
Inventor: DUVALET GILBERT CHARLES THEOPH
IPC: G01T7/08
Filed: 1967-02-17
Abstract: 1,147,833. Measuring radio-activity. G. C.T. DUVALET. Feb.17, 1967 April 27, 1966], No. 7729/67. Heading G1A. Apparatus for measuring the activity per unit length of an elongated radio-active source comprises a block of radiation absorbing material having a passage 4 for the elongated source and a Geiger-Miller tube 6. A passageway 1 communicating between the source and the tube serves to collimate radiation from the source and is closed by a screw 2. The output of tube 6 is fed to a cathode follower 7 and thereto a clipper 8 for producing pulses of uniform amplitude. The pulses are integrated in an integrating circuit 9 to give an output proportional to the repetition rate of the pulses. This D. C. signal is amplified at 10 and displayed on a micro-ammeter 11. Pluralities of resistors in the integrating circuit and in the circuit of the micro-ammeter 11 are selectable by ganged switches 33 and 33a to select different sensitivity ranges for the apparatus.
Patent GB-953360-A (GB)
Title: Improvements relating to electrical circuit arrangements
Inventor: BIRNSTINGL DAVID WILDEN
IPC: G06G7/16
Filed: 1960-03-04
Abstract: 953,360. Determining physical dimensions. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1961 [March 4, 1960], No. 7794/60. Heading G1N. [Also in Division G4] An input voltage V 1  corresponding to 1/k-x is converted to an output mean current I m  through a meter M corresponding to x by the transistor circuit shown. The arrangement is such that with the polarity of the A.C. from a transformer TR as shown transistor T 5  is cut off, current will flow from transistor T 4  and through rectifier x 2  to the collector of T 1  so that C charges up to a reference voltage V 2 . T 5  now conducts and a constant current Ic flows through resistor R 2 , T 2  and meter M. The current ceases at the end of each half cycle due to reversal of the polarity of the A.C. and capacitor C is short circuited by T 3  and discharged. A mathematical proof is included in the Specification. One application of the invention is in conjunction with the electric gauging apparatus of Specification 904, 689, which relates to measuring the gap between two magnetic elements. The output voltage of such apparatus is in the form of a voltage proportional to the reciprocal of the gap and the present circuit can be used to convert such voltage to one proportional to the gap.
Patent GB-1391605-A (GB)
Title: Alarm annuniator circuits
IPC: G08B23/00
Filed: 1971-03-25
Abstract: 1391605 Alarm systems INDUSTRIAL CONTROL SERVICES Ltd 22 March 1972 [25 March 1971] 7802/71 Heading G4N In an alarm annunciator system one or more alarm circuits comprise a pair of thyristors TH1, TH2 in series, TH1 being turned on in response to a detected condition so as to provide a pulsed indication from a pulsed supply (FLASHER); TH2 being turned on (e.g. by a manual switch AB) to provide a steady indication. As shown each normally-closed field alarm sensor is connected to respective terminals XY so as to trigger thyristor TH1 when the sensor contacts are open. This action energizes lamp L from a FLASHER via diode D1 and provides a square wave via D2 to a common ALARM line so as to energize an alarm-initiating relay (Fig. 3, not shown). When the acknowledge button AB is operated, thyristor TH2 is made conductive so that lamp L is energized continuously from the + 24V supply and the acoustic alarm is inhibited. A Zener diode DZ 1 and capacitor C1 prevent previous triggering by interference pulses. TEST and REST buttons TB and RB are provided. Fig. 2 (not shown) relates to a transistorized multivibrator and three further transistors which energize the FLASHER line.
Patent GB-679606-A (GB)
Title: Vibratory electric motor
Inventor: MESH THEODORE JULIUS
IPC: H02K33/12
Filed: 1951-04-06
Abstract: 679,606. Reciprocating machines. GILBERT & BARKER MANUFACTURING CO. April 6, 1951, No. 8016/51. Class 35. A vibratory motor has a coil 7 mounted on a hollowed core 6 of a first casing 1, an armature 10 which slides in a hole 12 formed in a second casing 2 which abuts the first casing 1 to complete the coil enclosure, and a rod 9 which is fixed to the armature and which extends axially through the core 6 so as to operate mechanism; in this case the rod 9 acts as a pump piston. Fig. 2 shows an arrangement in which the armature 10<SP>1</SP> is moved in both directions by two coils 7<SP>1</SP>, 30 which are enclosed by a 3-section casing. The apparatus is fed from A.C. supply with half-wave rectifier 18<SP>1</SP> in the case of 1-coil motor or rectifiers 18<SP>1</SP>, 42 for the 2-coil motor. In order to eliminate residual magnetism the rectifiers are shunted by resistances as shown in Figs. 5, 6, 7.
Patent GB-337714-A (GB)
Title: Improvements in or relating to automatic vehicle couplings
IPC: B61G5/04
Filed: 1930-03-12
Abstract: 337,714. Scharfenbergkupplung Akt.- Ges., (Assignees of Heimerle, F.). March 13, 1929, [Convention date]. Draw - gear. - An automatic coupling a for railway &c. vehicles that can readily be moved from an operative to an inoperative position is supported on an ordinary coupling- hook g by means of lazy-tong mechanisms associated with springs i. In the construction shown two lazy-tongs each comprising four links b, b<1>, c, c<1> are connected to each other and to the coupler-head a and hook g by bolts k, m, n, while the lower ends of the two springs i are anchored to a bolt h passing through cranked extensions of the links c<1>. At their upper ends the springs are secured to a cross beam d formed at its centre with a pocket t adapted to rest on the point s of the hook g. The beam d is provided with a handle f so that it can easily be displaced from the hook, and the coupler-head and lazy-tongs allowed to drop to the inoperative position.
Patent GB-346938-A (GB)
Title: Manufacture of substituted phenol-carboxylic-acids
IPC: C07C65/05
Filed: 1930-03-12
Abstract: 1 : 4-Dichlor-2-hydroxybenzene carboxylic acid, 1-chlor-4-methyl-2-hydroxybenzene carboxylic acid and 1-methyl-4-chlor-2-hydroxybenzene carboxylic acid are made by treating the dry alkali metal salt of the parent hydroxy-compound with carbon dioxide under pressure.  In examples, 1 : 4-dichlor-2-hydroxybenzene, 1-chlor-4-methyl-2-hydroxybenzene or 1-methyl-4-chlor-2-hydroxybenzene are dissolved in caustic soda or potash and evaporated; the cold dry powder is then treated with carbon dioxide under pressure in an autoclave and the temperature is increased; after cooling the mass is dissolved in hot water and filtered, the acid precipitated by hydrochloric acid and filtered off.  It can be further purified by dissolving it in sodium carbonate or acetate and reprecipitation by acid.  As the resultant acids all give a violet colouration with ferric chloride they are presumed to have the carboxylic group in the 3-position.
Patent GB-398555-A (GB)
Title: Improvements in stuffing box packing
IPC: F16J15/20
Filed: 1932-03-18
Abstract: 398,555. Stuffing-boxes. COOK, G. H., Lion Works, Woking, Surrey. March 18,1932, No. 8171. [Class 122 (v).] Packing-rings a of U-section are provided with closure packing-rings b provided with channels c for the passage of pressure medium to the cavities of the rings a. The rings a, b may be of helical form.
Patent GB-1437210-A (GB)
Title: Process for preparing imidazole-4,5-dicarboxamide
IPC: C07D233/90
Filed: 1974-02-22
Abstract: 1437210 Imidazole - 4,5 - dicarboxamide SAGAMI CHEMICAL RESEARCH CENTER 22 Feb 1974 [26 Feb 1973] 8281/74 Heading C2C Imidazole-4,5-dicarboxamide is obtained by heating at 150-220‹ C. in formamide as a reaction medium either (a) diaminomaleonitrile and formic acid or (b) monoformyldiaminomaleonitrile. The heating is generally carried out for from 10 minutes to 10 hours and the concentration of reactant or reactants in the formamide is preferably from 1 to 8 wt. per cent. 1 to 4 Moles of formic acid are preferably used per mole of diaminomaleonitrile in (a).
Patent GB-523190-A (GB)
Title: Process for saccharifying cellulose for obtaining from wood substances sugar solutions adapted to produce industrial alcohol
IPC: C13K1/02
Filed: 1939-03-15
Abstract: 523,190. Saccharifying cellulose ; cement. GIORDANI, M., and LEONE, P. March 15, 1939, Nos. 8356 and 8357. Convention dates, March 16, 1938, and Dec. 26, 1938. [Class 127]' [Also in Group V] Cellulosic material, such as wood dust, shavings or straw is given a preliminary saccharification by dilute sulphuric acid (0.5-5 per cent. strength) at 135-150‹C. and the undissolved residue is saccharified by means of sulphuric acid of concentration about 72 per cent. in the cold. Diluted acid from the second treatment may be used for the preliminary saccharification. Volatile impurities are allowed to escape during the preliminary treatment. The residue from the final saccharification may be neutralized with lime, and the mixture of gypsum and lignin may be burnt to recover lime and sulphuric acid or if clay is added to recover the acid and produce a cement. The lignin contained in the residues may act as part or the whole of the combustible necessary for the burning or may be filtered off and replaced by carbon &c. The sugar solutions obtained may be fermented to obtain alcohol.
Patent GB-649993-A (GB)
Title: Improvements in or relating to acoustic devices
IPC: G10H1/36
Filed: 1948-03-22
Abstract: 649,993. Musical instruments. FURBER, J. March 22, 1948, No. 8386. [Class 88 (ii)] [Also in Group XXXIX] A number of acoustic devices F, G, H, auxiliary to the loud-speaker providing the main part of the music, are normally operative but as the current to the loud-speaker increases, marginal relays M, N, P operate to cut-out F, G, H in turn. Alternatively (Fig. 2, not shown), F, G, H are normally inoperative and are put into circuit by the marginal relays.
Patent GB-472284-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/82
Filed: 1936-03-20
Abstract: 472,284. Cathode-ray tubes. NICOLL, F. H. March 20,1936, No. 8442. [Class 39 (i)] The deflecting-plates are supported by metal rods attached to the re-entrant stem of the tube and passing through flanges on the plates. The Figures show an arrangement in which the rods also support the electrodes of the electron gun as described in Specification 437,594. A collar 2 surrounding the reentrant stem of the tube carries a plate 8 on which are mounted four metal rods, two of which, 4, 5, are shown in Fig. 1 passing through flanges on the grid 10, first anode 11, second anode 12, and deflecting plates 14, 15, 16. The rods 4, 6, Fig. 2, are secured to flanges 14a, 14c on the deflecting plates, e.g. 14, Fig. 2, by pieces of mica 19 riveted to the flanges and secured to the rods by metal eyelets 22. A screen electrode 23 may be mounted on the rods between the two pairs of deflecting plates and be in metallic contact with one of the rods which also serves as a lead to the anode 12.