baber/WOPTO huggingface dataset:
Patent GB-1083178-A (GB)
Title: Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same
Inventor: ALDERSON GEOFFREY WINTON
IPC: C08F10/00
Filed: 1965-08-18
Abstract: High molecular weight polymers are prepared by polymerizing a -olefins in the presence of a catalyst obtained by mixing molten lithium or sodium with an anhydrous potassium compound and contacting the resulting mixture with a composition comprising an oxide of chromium, at least part of which is in the hexavalent form, supported on silica and/or alumina. Specified olefins are ethylene, propylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1 and decene-1. Specified potassium compounds are the hydroxide, silicate, sulphate, halides and carbonate, which may be mixed with the alkali metal at 250 DEG  to 500 DEG  C. Polymerization may be effected in the presence of inert diluents, e.g. pentane, hexane, heptane, octane, benzene, xylene and cyclohexane.  In examples ethylene is polymerized in the presence of cyclohexane and a catalyst comprising chromium trioxide on a silica/alumina support and a sodium/potassium carbonate cocatalyst.
Patent GB-453586-A (GB)
Title: Improvements in the manufacture of blocked toes and stiffeners for footwear and their assembly
IPC: A43B23/08
Filed: 1934-12-10
Abstract: 453,586. Stiffeners for boots and shoes. AMOS & CIE, La Neuveville Les Raon, Vosges, France. Dec. 10; 1934, No. 35404. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 11, 1935]. [Class 17 (ii)] [See also Group VIII] Blocked toes and stiffeners for shoes which may be softened by heat or by denaturated alcohol are prepared from felt or tissue which is treated in the piece for mineralization, which is stated to be done by treatment with (a) a solution of calcium chlorate, (b) a solution of sodium sulphate. The felt or tissue thus mineralized is impregnated with " colophane or products having the same characteristics dissolved in denaturated alcohol." After expressing the solution between two rollers the felt is dried ready for cutting into pieces intended for blocked toes and stiffeners.
Patent GB-780403-A (GB)
Title: Fountain pens
Inventor: HACKMYER SAUL A
IPC: B43K5/14
Filed: 1955-12-09
Abstract: 780,403. Reservoir pens. ANSOL CO., Inc. Dec. 9, 1955, No. 35411/55. Class 1146 (3) A reservoir drawing pen has a replaceable ink cartridge 23, the cartridge having a spring-pressed plunger 30 that forces ink through a feed tube 19 to nibs 6, 6<SP>1</SP>. The cartridge has a self-sealing disc 24, e.g. of rubber, that is punctured by the sharpened end 20 of the feed tube 19 during the insertion of the cartridge into the barrel 15. The nibs 6, 6<SP>1</SP> are formed integrally with a head 7 and are adjustable towards each other by a screw 9 and nut 8, the screw having a diametral aperture 22 for the passage of the tube 19. The feed tube 19, which is preferably of stainless steel, is held in position by a collar 21 on the tube being engaged between the head 7 and a threaded extension 14 of the barrel, a knurled nut 11 holds the extension 14 and head 7 together.
Patent GB-315181-A (GB)
Title: Improvements in neck ties for personal wear
IPC: A41D25/16
Filed: 1928-12-03
Abstract: 315,181. Frank, H. Dec. 3, 1928. Neckties.-In neckties which have a rubber lining, the rubber is slit, slotted, or otherwise mutilated to facilitate the formation of the knot. As shown in Fig. 4, the rubber lining has its edges slit at 4 and is also provided with slots 5. One or more inextensible tapes 3 may be provided to limit the extension of the rubber lining, said tapes being normally slightly longer than the lining.
Patent GB-1511036-A (GB)
Title: Outboard motor units
IPC: F02B61/04
Filed: 1975-08-28
Abstract: 1511036 Outboard motors BRUNSWICK CORP 28 Aug 1975 [29 Aug 1974] 35574/75 Heading B7V An outboard motor comprises an engine support housing 14, 15 and a propeller unit housing 5, a steering support 31 joined to a transom bracket 8, and vibration isolating elements 32, 33 disposed between the housing 14, and the steering support 31. The elements 32, 33 include slots 34, 35, 41, 42 which interlock with projections, e.g. 42, 43 on a split sleeve 44 which locates bearing 58 of the support 31. The Specification also describes an idle exhaust system 23, 66 described in Specification 1,511,037.
Patent GB-858231-A (GB)
Title: Improvements in and relating to an automatic sprinkler device or fire isolating device
Inventor: VENISON DOUGLAS
IPC: A62C37/16
Filed: 1956-11-21
Abstract: 858,231. Fire extinguishing sprinklers; operating fireproof doors &c. HALL & CO. Ltd., M. Feb. 21, 1958 [Nov. 21, 1956], No. 35586/56. Class 47. An automatic sprinkler device or fire isolating device wherein the valve 6 is normally held in its closed position by means of two links 9, 10 mounted within a yoke 3 and having a common point of contact 12 for operation as a toggle, the links 9, 10 being supported, by means of a temperature responsive element 19, in a stable position where the axes of the links are in a straight line and the point of contact is to one side of the line of the axes, whereby expansion of the element 19 upon a sufficient rise in ambient temperature renders the position of the links unstable and thereby releases the valve. As described, the temperature responsive element 19 consists of a liquid filled bellows. The invention is applicable to the control valves of fire proof doors, shutters &c.
Patent GB-758740-A (GB)
Title: Improvements in or relating to electronic switching arrangements
Inventor: CLARKE CLIFFORD
IPC: H03K17/54
Filed: 1953-12-22
Abstract: 758,740. Gating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 19, 1954 [Dec. 22,1953], No. 35645/53. Class 40 (6), A gating circuit comprises an electric discharge tube normally biased to be non-conductive and to which a high-frequency input voltage is applied, the tube being rendered conductive by a control signal independent of the input signal applied to remove the bias which remains removed during the time in which an output signal is produced by the tube even when the control signal has ceased. The Figure shows a gating circuit for H.F. signals which are applied at the input 3 to the third grid of a gating tube 1 which is normally cut-off at its first grid by a voltage derived directly from tube 6 which is normally conductive. When tube 6 is cut-off by a control pulse applied to terminal 14 tube 1 conducts and remains conducting due to the H.F. signals produced at the output of tube 1 being rectified in voltage doubler circuit 12, 13 to maintain tube 6 cut-off even when the control pulse ceases. The H.F. output from tube 1 renders thyratron 26, which is normally conductive, cut-off during the next negative half-cycle of the A.C. supply across terminals 28 so that relay 30 is released. On failure of the H.F. voltage at input 3 tube 6 returns to its conductive state and tube 1 is cut-off, remaining thus until a further control pulse is applied at input 14. Capacitors 16, 20 act as pulse lengtheners so that operation is ensured even with extremely short control pulses, switch 21 enables manual re-setting to be effected.
Patent GB-1122693-A (GB)
Title: Rotary broaching machine
IPC: B23G9/00
Filed: 1966-08-09
Abstract: 1,122,693. Screw-slotting. SUNDSTRAND CORP. 9 Aug., 1966 [19 Oct., 1965], No. 35685/66. Addition to 965,946. Headings B3L and B3T. A broaching machine as claimed in Specification 965,946 comprises means H for carrying blanks past a broach blade T and a channelled broach holder F for directing lubricant on to the blade. As the holder H rotates, a feeler 20 on a lever 17 enters the slot in the head of each screw S in turn to sense its presence and to prevent the screw from rotating as a deburring blade 15 is swung across the end of the slot. If no slot is present in the screw head, or a slot is of insufficient depth, a switch 30 is operated to illuminate a warning light or stop the machine.
Patent GB-901273-A (GB)
Title: The new organic compound tylosin, its hydrolysis product desmycosin and methods for preparing same
IPC: C12P19/62
Filed: 1959-10-21
Abstract: A new antibiotic designated Tylosin is produced by cultivating a Tylosin-producing strain of Streptomyces fradiae in an aqueous culture medium containing assimilable sources of carbon, nitrogen and inorganic salts preferably under submerged aerobic conditions. The Tylosin produced gives Desmycosin and mycarose on acid hydrolysis with e.g. dilute hydrochloric acid.  Specified strains of Streptomyces fradiae are S. Fradiae NRRL 2702 and S. Fradiae NRRL 2703.  Specified sources of carbon are glucose, sucrose, fructose, starch, <PICT:0901273/IV (b)/1> <PICT:0901273/IV (b)/2> glycerin, molasses, dextrin, brown agar or corn steep solids. Specified sources of nitrogen are linseed meal, tankage, fish meal, cotton seed meal, oatmeal, ground wheat, soyabean meal, beef extract, peptones (meat or soy), casein or amino acid mixtures. Specified inorganic salts are those containing, sodium, potassium, ammonium, calcium, magnesium, cobalt, sulphate, chloride, phosphate, carbonate, acetate or nitrate ions.  The aqueous nutrient medium may also contain growth factors e.g. distillers' solubles or yeast extract.  Cultivation between 25 to 32 DEG C. for 2 to 5 days at an initial pH 5.5 to 8 is preferred. The antibiotic Tylosin is isolated from the clarified broth by extraction with a water-immiscible polar organis solvent such as chloroform or amyl acetate, or by adsorption on carbon, silica gel, alumina or acidic ion exchange resins such as "Dowex 50" (Registered Trade Mark) from chloroform benzene or acetone solution and elution with a low molecular weight alcohol e.g. methanol or a low molecular weight alcohol containing up to 50% of a low molecular weight ketone e.g. acetone.  The Tylosin is further purified by concentrating the organic extract, decolorizing with carbon and precipitating with a non polar solvent e.g. petroleum ether or by adsorption chromatography of the organic extract.  Both Tylosin and Desmycosin form acid addition salts with organic and inorganic acids and are readily acylated, (the acyl group containing 2-6 carbon atoms); they are soluble in polar organic solvents and relatively insoluble in non-polar solvents of the aliphatic hydrocarbon class and are white solids.  They have a U.V. maxima at 288 mm , decolorize potassium permanganate, give positive Molisch and anthrone tests and negative Ninhydrin, biuret, Sakaguchi, ferric chloride and maltol tests.  They have the following distinguishing properties:-  <TABS:0901273/IV (b)/1> and I.R. spectrums as shown in Figs. I and II.  The antibiotics Tylosin, Desmycosin, their salts and acylated derivatives, are active against gram positive and gram negative bacteria, they can be used as sterilizing agents and in veterinary medicines for the treatment of Turkey sinusitis.
Patent GB-419011-A (GB)
Title: Improvements in or relating to floors
IPC: E04F15/04
Filed: 1933-12-20
Abstract: 419,011. Dowels. STORM, R. W., 2500, Park Avenue, New York, U.S.A. Dec. 20, 1933, No. 35809. [Class 89 (ii).] A metal spline or dowel 12 for use in connecting wood flooring elements 10 is adapted to engage in grooves in the end faces of a plurality of elements and is provided with teeth 13, which are inclined to the surface of the spline and are so arranged that a plurality of teeth engages each element. One course of elements 10, which may be in tongued and grooved engagement, is first positioned on the floor, and a spline 12 is driven into the aligned grooves in the ends of the elements, and the next course of elements is then laid so that the grooved end faces of these elements may be driven on to the spline. The teeth 13 may be provided on one or both faces of the spline. Alternate teeth or groups of teeth may be inclined in opposite directions, and oppositely-inclined teeth may be provided on both faces of the spline. The spline may be of T-cross-section with the teeth provided on the horizontal flange, and such a spline is positioned with the vertical web extending either upwardly or downwardly. The teeth may be provided only towards each side of the spline so as to leave a central portion adapted to support a brass angle member 24 disposed in the joint as shown in Fig. 4. Alternatively, the joint may be fitted above the spline with a flat brass strip or a member of T-section having its horizontal flange disposed in the surface of the floor.
Patent GB-324753-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K3/12
Filed: 1928-12-05
Abstract: 324,753. British Thomson-Houston Co., Ltd., and Pollock, A. A. Dec. 5, 1928. Armatures, cooling; coils. -For cooling a dynamo electric machine having a wound rotor, stampings are provided each having a portion acting as a fan blade or radiating fin and two limbs extending therefrom which are adapted to be secured to the sides of the rotor end windings. The stamping which may be of copper, aluminium &c. has a rectangular portion 1 formed with two parallel extensions 2, 3 which are bent in opposite directions. The extensions are secured to the coil as shown in Fig. 3 either by taping before assembly of the coils in the slots, or they may be inserted between the coils when they are assembled on the rotor.
Patent GB-1036569-A (GB)
Title: Connection of a multi-phase induction motor to three-phase mains
IPC: H02P27/02
Filed: 1964-09-02
Abstract: 1,036,569. Control of A.C. motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Sept. 2, 1964 [Sept. 3, 1963], No. 35910/64. Heading H2J. At least one phase of an electric motor is connected to each of the three phases of a supply through thyristor. As shown, thyristors 1 ... 18 can be appropriately switched to provide speed control, reversal, and direct or reverse current braking. One form of speed control consists in firing thyristors 1, 2; 7, 8; 13, 14 only, all connected to a single supply phase R, at a variable rate, thus producing a rotating field of variable speed. A neutral impedance r, comprising a resistor, inductor or capacitor, may also be varied by mechanical or electronic switching. Three alternative arrangements (Figs. 2, 3, 4, not shown), are described which have fewer thyristors but provide less comprehensive control. Provision is made for varying the firing angle of the thyristors.
Patent GB-1081557-A (GB)
Title: Water control apparatus for crossflow cooling tower
IPC: F28F25/02
Filed: 1965-08-23
Abstract: 1,081,557. Cooling towers. MARLEY CO. Aug. 23, 1965 [Sept. 8, 1964], No. 36017/65. Heading F4K. In a cooling tower in which hot water is distributed through orifices in the base of a trough 36 on to slats or like fill material (28a, Fig. 3), where it is cooled by contact with a cross-flow stream of ambient air, the trough is divided into radially inner and outer sections by a central portion 52. Water supply from a duct 34 to the inner and outer trough sections individually is controlled by valves 62, 64. In use, the valves are operated to ensure under adverse draught conditions, an excess or at least a full supply of hot water to the outermost trough section, and under such conditions this excess hot water may overflow the front wall 40 of the outer trough section and run down over the air inlet louvres 32 thereby preventing ice build-up on these louvres and on the outermost portions of the fill material. The trough 36 may also be divided into sectors by radial partitions (Figs. 6, 7, not shown). Each sector has its own valve-controlled feed pipe 58 enabling excess hot water to be supplied to any sector as may become necessary, e.g. under violent wind conditions, to prevent ice formation. The water supply to the trough sections may be manually controlled, or automatically varied with ambient temperature changes.
Patent GB-1426741-A (GB)
Title: Azo dyestuffs
IPC: C09B29/42
Filed: 1972-08-02
Abstract: 1426741 Azo dyestuffs from pyridone coupling components IMPERIAL CHEMICAL INDUSTRIES Ltd 11 July 1973 [2 Aug 1972] 36017/72 Heading C4P Novel dyestuffs which contain no SO 3 H groups and have the Formula I where A is an optionally substituted aryl or heterocyolic radical which can contain an arylazo radical, Z is hydrogen or an optionally substituted amino, alkyl, cycloalkyl, aralkyl, aryl or heterocyclic radical, X is H, CN, optionally substituted alkyl, acylamino, -SO 2 R<SP>1</SP>, -SO 2 NR<SP>1</SP>R<SP>2</SP>, -COR<SP>1</SP>, -CONR<SP>1</SP>R<SP>2</SP> or -COOR<SP>3</SP> where R<SP>1</SP> and R<SP>2</SP> are H or optionally substituted alkyl, cycloalkyl, aralkyl or aryl and R<SP>3</SP> is optionally substituted alkyl, cycloalkyl, aralkyl or aryl, n is 1 or 2, and each of the COOH groups is attached to a C atom present in A, Z or X, may be prepared by azo coupling. The dyestuffs of Formula I may be used to dye aromatic polyester, cellulose acetate and triacetate, synthetic polyamide, polyacrylonitrile, and polyurethane textile materials and blends thereof with natural fibres in yellow or greenishyellow shades.
Patent GB-171322-A (GB)
Title: Improvements in vehicle horns and the like
IPC: G10K9/22
Filed: 1920-12-23
Abstract: 171,322. Clayton-Wright, Ltd., and Reynolds, J. E. Dec. 23, 1920. Clips.-In a vehicle horn, the gauze 2 of a removable dust cap is carried by a metal ring 3 slotted as shown at 4 and a clip 5 is carried in each of the slots 4. Each clip has a hook member 6 for engaging the bead at the mouth of the horn, and two lugs 7 which engage a resilient member 8 which may consist of a length of spring wire bent as shown. The ends of the member 8 may pass through the ring 3 and may be bent backward to secure them.
Patent GB-1496803-A (GB)
Title: Control arrangements for burner equipment
IPC: F23N5/24
Filed: 1975-09-02
Abstract: 1496803 Burner control systems LGZ LANDIS & GYR ZUG AG 2 Sept 1975 [10 Sept 1974] 36116/75 Heading F4T [Also in Division G1] A flame monitoring means, such as a photoresistor 21, in a burner control circuit is provided with apparatus for checking its operation, the apparatus comprising a liquid crystal cell 26 which is disposed between a flame position of the burner and the monitoring means and is controlled by pulses (1) from a generator 25. The two connections of the cell 26 are fed with pulses (5) derived from the mains frequency by generator 31, one side directly and one side via anti-coincidence circuit 30 which also has an input from the generator 25, so that the two sides of the cell receive in-phase pulses and it is thus unaffected, except when pulses (1) (of lower frequency than the pulses (5) and of a mark/ space ratio of about 1 : 15) are supplied from the generator 25, when the cell will modulate the light received by the photoresistor 21 and thus the signal (8) produced from the voltage divider constituted by the photoresistor 21 and resistor 22. This signal (8) is fed directly to one input of AND gate 23 and is also amplified, rectified and inverted to give signal (10), fed to the other input of the AND gate 23; this gate produces no signal while the cell 26 is merely modulating extraneous light but produces pulses (3) (out-of-phase with the pulses (1)) when the flame is lit (signal (12), Fig. 6). The pulses (3) are passed to one input of anticoincidence circuit 28, the other input being signal (2) from OR gate 27 which is fed with the pulses (1) and with a signal (11) representing fuel discharge. The output of the circuit 28, signal (4), is a train of pulses in phase with signal (1) during preparatory time t v  which ceases when a positive fuel signal (11) is received and is resumed when a positive flame signal (12) is received (time t b ); unless these pulses are resumed within a predetermined safety time t s  a flame failure or a fault in the flame monitoring means is presumed and the fuel supply is cut-off; the absence of signal (11) causes signal (4) to be inverted, actuating blocking relays to render the burner equipment inoperative. A fault in the monitoring system during the preparatory time t v , resulting in a spurious signal (12) in the absence of a signal (11) also stops the pulses and shuts down the burner. In a modification, Fig. 7 (not shown), a single pulse generator (31) is provided which feeds pulse divider (35), the divided pulses of opposite sense being fed together with the pulses direct from the generator (31) to AND gates (36), (37) thereby generating low mark/ space pulses of low frequency which act on the liquid crystal cell 26.
Patent GB-1395127-A (GB)
Title: Process for the quantitative photometric determination of uric acid
IPC: G01N21/77
Filed: 1973-07-30
Abstract: 1395127 Determination of uric acid BOEHRINGER MANNHEIM GmbH 30 July 1973 [2 Aug 1972 25 May 1973] 36157/73 Heading G1B In a process for the quantitative determination of uric acid, uricase and catalase act upon a uric acid-containing sample in the presence of ethanol and air to form acetaldehyde, which is reduced back again to ethanol by the action of alcohol dehydrogenase with reduced nicotinamideadenine-dinucleotide (NADH), the decrease of the NADH concentration being measured spectrophotometrically, the process being carried out at a pH of 6.3 to 7.1 and such an amount of ethanol is added to the reaction mixture that the concentration thereof is within the limits of 0.3 to 0.7 vol %.
Patent GB-884109-A (GB)
Title: Door control mechanism
IPC: E05B65/32
Filed: 1959-10-26
Abstract: 884,109. Latches. MENZIMER, L. W. Oct. 26, 1959 [Nov. 10, 1958], No. 36211/59. Class 44. Door control mechanism for use between a door frame and a vehicle door comprises a latch device having a latch member 16 which is received in a recess in a keeper 17, a tooth 16a of the latch member being received by a locking pocket 44 such that in the latched position the centre line of the pocket passes through the axis of rotation of the latch member. The keeper contains an insert member 31 which contains the pocket 44, and a spring loaded wedge block 46 mounted on a pin 47. The latch member 16 is mounted on a pivot shaft 58 which has as many apices as as there are teeth on the member, a ratchet wheel 60 which has twice the number of teeth as the latch member being mounted on the same shaft. A plastic wheel member 60b is mounted on the ratchet wheel so that portions 60c project into the spaces between the teeth to act as sound deadeners when in contact with a detent 81. The latch is released by rotating a detent actuating lever 83 about its pivot 77 thereby rotating detent lever 81 by means of a lug 80, the release being effected either by a pushbutton 88 acting on a flange 86 of lever 83 or by inside operating means through lever 95 (Fig. 3) and portion 99 of lever 83. The locking lever 91 must first be moved from its locked position as shown, by means of lever 95 or key actuated cam lever 93, both of which cause clockwise rotation of lever 91 about its pivot 92, a spring 112 urging the lever 91 to one of its two rest positions. On closing the automobile door the latch is automatically put in an unlatched position by means of a kick out portion 81 on the detent, this portion being lifted, due to co-operation with cam edge 113 of slot 115 in the lever, to cause locking lever 91 to rotate.