baber/WOPTO huggingface dataset:
Patent GB-1468984-A (GB)
Title: Amplifier circuits for flame monitors
IPC: F23N5/08
Filed: 1974-11-19
Abstract: 1468984 Photo-electric flame monitors LGZ LANDIS & GYR ZUG AG 19 Nov 1974 [26 Nov 1973 50148/74 Heading G1A [Also in Division F4] A circuit for a flame monitor comprises a relay connected across the collector-emitter path of a transistor; a photo-resistor controlling the transistor base current; two resistors connected respectively between the collector and a first power-input terminal and between the emitter and a second power-input terminal; and a diode connected across, and poled in the opposite sense to, the base-emitter path. A transistor T Fig. 3, arranged to shunt a flame relay FR, has emitter and collector supply resistors R3, R2 arranged for direct connection across an A.C. supply R, Mp. A photo-resistor RF, in series with a chain including resistors R1, R5, controls the bias at a junction a applied to the base B in such a way that, during power half-cycles when R is positive to Mp, the sensing of a flame causes the base B to be cut-off, so open-circuiting the transistor T to allow current to energize the relay FR. A diode D 1 across the base-emitter path, but oppositely poled, ensures that when R goes negative to Mp, the collector-base junction in series with the diode D1 constitutes a low-resistance shunt across the relay FR, so retarding the decay of coil current and avoiding reverse-voltage surges across the baseemitter junction. A Zener diode ZD may be connected across the collector-base path to avoid excess collector voltages due, e.g. to power-line surges. If a flame is not sensed by the photo-resistor RF, the transistor T presents a low shunt resistance to the relay FR throughout the power cycle. A switch S arranged upon closure to turn on a fuel valve V also switches a resistance R4 across part of the bias chain to raise the threshold of illumination of the photo-resistor RF required to energize the relay coil FR. In a modification to avoid undesired switching that might be caused by stray capacitances C1, C3 in the photo-resistor leads, a balancing circuit comprises a resistor R6 inserted between Rl and the bias point a and a capacitor C2 shunting R1. In a further modification, the energizing of the flame relay FR may be delayed by a capacitor C4 across the base-emitter path, a diode D2 being included in series with C4 to avoid delay when the relay is to be switched off. A resistor R7 across the diode D2 provides a slow discharge path for C4.
Patent GB-1087253-A (GB)
Title: Improvements in or relating to reactive dyes, their processes of production and their applications
Inventor: BENZ JAKOB
IPC: C09B62/02
Filed: 1964-12-10
Abstract: Water-soluble or insoluble reactive dyes which contain at least one group of formula <FORM:1087253/C4-C5/1> in which hal is chlorine or bromine, R is hydrogen, or alkyl of 1-5 carbon atoms and in which the benzene ring Q may be substituted are prepared by conventional acylation and coupling processes.  The dyes include, azo, metallized azo, anthraquinone and phthalocyanine dyes and provide a full range of colours.  In acylation processes a dye or dye intermediate is acylated with a halide or anhydride of a compound of formula <FORM:1087253/C4-C5/2> in which hal and Q are as above, the process being in aqueous, aqueous-organic or organic solution, preferably at a pH of 7-3 in presence of an acid binding agent.
Patent GB-1099935-A (GB)
Title: Improvements in or relating to yarn winding
Inventor: HORWOOD JOHN MAURICE
IPC: B65H54/46
Filed: 1964-12-10
Abstract: 1,099,935. Winding yarns. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 5, 1966 [Dec. 10, 1964], No. 50347/64. Heading D1J. A method for winding yarn onto a rotating container 4 wherein a driving element 1 has circumferential bands 2, 3 fitted on the surface thereof, which bands have a high coefficient of friction with the container 4 and are spaced apart by a distance greater than the length of the yarn package to be wound onto the container, the container 4 being driven by frictional contact with said bands 2, 3 during the initial winding of yarn onto the container 4 and is subsequently driven by frictional contact between the yarn package being formed and the driving element 1 in known manner.
Patent GB-1502466-A (GB)
Title: Rotary printing machine having an auxiliary drive
IPC: B41F13/00
Filed: 1975-12-09
Abstract: In an inking unit, which is driven by an auxiliary motor for washing, besides washing plate exchange is also to be made possible without loss of paper and with register-maintaining running-on. For this purpose, the train of driving gears (22, 23, 25) is provided on one side of the machine, the driving gear for the plate cylinder is constructed from two cylindrical gears (23, 25) which can be connected by an electromagnetic tooth coupling (31) provided with a register search pin (33), and the driving gear (23) for the rubber-covered cylinder is arranged loosely on the plate cylinder shaft (24) and the driving gear (25) for the inking unit is arranged fixedly against rotation on said plate cylinder shaft. <IMAGE>
Patent GB-1213533-A (GB)
Title: A method of purifying n,n-di(carboxymethyl)-aminomethyl sulphonephthalein derivatives
IPC: C09B11/08
Filed: 1968-10-25
Abstract: 1,213,533. Purifiying sulphonephthaleins. CESKOSLOVENSKA AKADEMIE VED. 25 Oct., 1968 [25 Oct., 1967], No. 50840/68. Heading C4P. N,N - Di(carboxymethyl) - aminomethyl derivatives of sulphonephthaleins are purified by precipitating the derivative from aq. soln. with a water-sol. Ba, Ca or Sr compound, separating the ppt. from the soln., decomposing the ppt. with H 2 SO 4 , separating the insol. metal sulphate produced by the decomposition and precipitating the sulphonephthalein as an alkali metal salt by means of a water-miscible solvent in which the alkali metal salt is insoluble. The sulphonephthalein derivative is preferably the crude condensation product of a sulphonephthalein with iminodiacetic acid and formaldehyde. The preferred water-miscible solvent is ethanol. In examples the condensation products of iminodiacetic acid and formaldehyde with o-cresol sulphonephthalein or thymol blue are purified by the process.
Patent GB-1134099-A (GB)
Title: Inflatable internal core for the formation of concrete ducts or pipes of curved non-circular cross-sections
Inventor: LUCA VASILE
IPC: B28B7/32
Filed: 1965-12-01
Abstract: 1,134,099. Moulding concrete ducts or pipes. RUMANIA, MINISTRY OF MACHINE BUILDING INDUSTRY. 1 Dec., 1965, No. 51057/65. Heading B5A. [Also in Division E1] An inflatable flexible core 1 for use in casting concrete ducts or pipes, includes internal flexible transversely extending tie elements 2 which ensure that the core expands into a non-circular cross-sectional shape.
Patent GB-1093867-A (GB)
Title: Catheter
IPC: A61M27/00
Filed: 1966-11-15
Abstract: 1,093,867. Catheters. CORDIS CORPORATION. Nov. 15, 1966 [Jan. 17, 1966], No. 51106/66. Heading A5R. A catheter for surgical drainage has a flexible tip portion curved in the shape of a hook, the portion of the wall of the tip portion lying on the inside of the hook being perforated. The catheter may be formed of silicone rubber and the perforations 8 on the inside of the hook may be circular or oval in crosssection. The end 4 of the catheter may be closed as shown, or open. During insertion in the body the catheter may be temporarily straightened with a stainless steel stylet 12 (Figure 2, not shown) having a diameter slightly smaller than the lumen of the catheter so as to allow fluid flow. The stylet may have a roughened surface to prevent its sticking to the catheter. The catheter may be used for drainage of the bladder &c., or may be imptanted for the continuous drainage of cerebrospinal fluid from a cerebral ventricle via a jugular vein to the atrium of the heart.
Patent GB-1171645-A (GB)
Title: Signal Translating Circuit
IPC: H03F3/343
Filed: 1966-11-17
Abstract: 1,171,645. Gain control. RADIO CORPORATION OF AMERICA. 17 Nov., 1966 [29 Nov., 1965], No. 51635/66. Heading H3T. In an arrangement in which the gain of a first amplifier stage is controlled, by a gain control signal applied to the same input terminal as input signals are applied causing a change in the direct current flow through its load impedance, a second amplifier stage is arranged so that its current flows through the load, and the two stages are so controlled that the current from the second stage changes in such a manner as to balance out the change in current from the first stage. Signal is applied over the transformer 32 to transistor 14, in an emitter-coupled pair 14, 16 in which the collector of the second transistor 16 is direct-coupled to an emitterfollower output stage 18. An automatic gain control signal is applied to the base of transistor 14 via terminal 12 and resistor 58; it is also applied to the base of transistor 52 in an emittercoupled pair 52, 54, in which the collector of transistor 54 is fed directly from the positive supply line and that of transistor 52 is connected to the collector of transistor 16. The resistors 34, 36, 22, 56 are so chosen that the change in collector current of transistor 52 is equal and opposite to that of transistor 16. Transistor 54 may be omitted (Fig. 2, not shown). Alternatively, transistor 16 may be omitted and transistor 14 comprise a commonemitter stage, in which case the collector connections of transistors 52, 54 are interchanged (Fig. 3, not shown).
Patent GB-1300584-A (GB)
Title: Ignition distributors
Inventor: TOLLEY LESLIE
IPC: F02P7/063
Filed: 1969-10-24
Abstract: 1300584 Mechanical interrupters JOSEPH LUCAS (INDUSTRIES) Ltd 23 Sept 1970 [24 Oct 1969] 52148/69 Heading H1N An ignition distributer for a road vehicle has an aperture formed between part of the periphery of the base-plate 12 and part of the inner wall of casing 11, a closure plate 13 closing the aperture and having a slot 28 to guide a pin 27 fixed to a carrier plate 24 carrying a contact breaker assembly 25, carrier plate 24 being adjustable relative to base-plate 12 and guided during adjustment by slot 28. Carrier plate 24 is pivotally engaged with a post 23 upstanding from a plate 18 which has an upstanding tag 19 through which is threaded a bolt 21. Adjustment of carrier plate 24 is by turning bolt 21 which moves plate 18 which moves post 23 and carrier plate 24. Since post 23, cam follower 29 and slot 28 are all on a diameter of the camshaft 10, adjusting carrier plate 24 moves cam follower 29 directly towards or away from camshaft 10 and does not alter the ignition timing. Adjustment of carrier plate 24 is to adjust the maximum operating gap between contact breaker 25 contacts. Closure plate 13 is fitted when a vacuum advance mechanism, the push rod of which would be connected to post 27, is not fitted.
Patent GB-1274509-A (GB)
Title: Anion exchange resins
IPC: C08F8/44
Filed: 1969-10-24
Abstract: 1,274,509. Aminating and iminating styrene/ divinylbenzene copolymers. OCTROOIEN MAATSCHAPPIJ ACTIVIT N.V. 24 Oct., 1969 [25 Oct., 1968], No. 52197/69. Headings C3C and C3P. Vinyl aromatic hydrocarbon homopolymers and oopolymers are made into ion exchange resins by introducing amine groups into the aromatic nucleii of the polymer, and reacting the resulting modified polymer with ethylene imine. The amine groups are preferably introduced by nitrating with nitric acid or a nitric/sulphuric acid mixture, and then reducing in aqueous medium e.g. with stannous or ferrous salts and dilute HCl, or with alkali metal or ammonium sulphides. The reaction with ethylene imine is carried out in an aqueous, or organic solvent, or without a solvent by heating between 20‹ C. and 90‹ C., optionally under pressure. The ethylene imine reacts with the amine groups of the polymer as below. Longer amine chains can be formed by condensation of further imine. The product may be quatemized e.g., with CH 3 l. Examples 1 and 2 relate to the treatment of porous styrene/divinyl benzene copolymer pearls, prepared in aqueous media with a benzoyl peroxide catalyst, and in the presence of hexane, gelatin, NaCl and bentonite, at 75‹ C., the pearls being washed with water and dried before the after-treatment.
Patent GB-1436567-A (GB)
Title: Use of coumarilic acid amides as herbicides
IPC: C07D307/86
Filed: 1973-11-12
Abstract: 1436567 Coumarilic acid amides CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GmbH 12 Nov 1973 [21 Nov 1972] 52394/73 Heading C2C Coumarilic acid amides of the formula wherein R 1  is hydrogen, (C 1 -C 3 ) alkyl or -OCH 3 ; R 2  is hydrogen or (C 1 -C 3 ) alkyl; R 3  is hydrogen or methyl and R 4 , R 5 , R 6  and R 7  denote hydrogen, halogen, (C 1 -C 3 ) alkyl or -OCH 3 , provided that at least three of R 4 -R 7  represent hydrogen, are prepared by reacting the corresponding coumarilic acid chloride with ammonia or a primary or secondary amine. The amides, some of which are novel, possess herbicidal properties.
Patent GB-1105088-A (GB)
Title: Improvements in microwave heating apparatus
Inventor: TAYLOR HARRY BURN
IPC: H05B6/80
Filed: 1965-12-10
Abstract: 1,105,088. Blanching vegetables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 Dec., 1966 [10 Dec., 1965], No. 52514/65. Heading A2D. [Also in Division H5] Organic substances to be heated are passed through an elongate section 2 of waveguide on a conveyer 14, moving in a direction parallel to the length of the waveguide, and are heated by microwave radiation transmitted along the waveguide without resonance. Food, such as diced vegetables for blanching or cooking, is fed to conveyer 14 via a feeder 22 and is carried along the waveguide up to a shoot 12. The waveguide is coated with an epoxide resin resistant to vegetable juices. The radiation enters the open end 4 of the waveguide and terminates in a load 8.
Patent GB-1479155-A (GB)
Title: Lubricant
IPC: C10N30/00
Filed: 1974-12-06
Abstract: 1479155 Sulphated polyoxyalkylene compounds SANYO CHEMICAL INDUSTRIES Ltd 6 Dec 1974 [7 Dec 1973] 52975/74 Heading C2C [Also in Divisions C3 and C5] The sodium, morpholine and triethanolamine salts of pentaerythritol dioleate-10EO-SO 3 H and the triethanolamine salts of pentaerythritol - 20EO - dioleate - SO 3 H, pentaerythritol dilaurate - 10EO-SO 3 H, pentaerythritol distearyl ether - 10EO-SO 3 H, sucrose- 20EO - dioleate - S0 3 H, tetraethylenepentamine dioleic amide - 20EO-SO 3 H and sorbitan monooleate-6-9EO-SO 3 H are prepared by reacting the first named component with the specified amount of ethylene oxide (EO), esterifying where appropriate, sulphating with chlorosulphonic acid and converting to the salt. The products are used in aqueous lubricating compositions.
Patent GB-1450102-A (GB)
Title: Fork for a hoookes-type universal joint
IPC: F16D3/26
Filed: 1973-11-16
Abstract: 1450102 Universal joints A EHRENREICH & CIE 16 Nov 1973 [18 Nov 1972] 53319/73 Heading F2U A fork member for a Hooke's type joint, formed from a single portion of tube, has transverse holes 5 to receive a clamp bolt (not shown) for securing the fork to a shaft (not shown) and the metal deformation resulting from this clamping action is accommodated by a slot 4, and therefore does not distort the geometry of the joint pivot arms 2, 3. The concave curved faces 7, 8, shaped to receive the shaft, may be provided with internally threaded portions 9, or with axial grooves, to improve the clamping grip on the shaft.
Patent GB-1417430-A (GB)
Title: Screw threaded nuts with security device
IPC: F16B39/36
Filed: 1972-11-24
Abstract: 1417430 Locknuts LACREX-BREVETTI SA 24 Nov 1972 [7 Dec 1971] 54471/72 Heading F2H A locknut comprises an annular coil spring on its side facing the workpiece, the spring exerting radial pressure on the bolt &c. and axial pressure on the workpiece when the nut is screwed down. The spring 3 which may be in one or more parts may be housed within the thread or in a recess cut at one end of the thread. It may be accommodated in a separate cap 4 secured to the nut for forcing on to a bevel surface of the latter when screwed down.
Patent GB-1073700-A (GB)
Title: Automatic record player
IPC: G11B17/28
Filed: 1963-12-13
Abstract: 1,073,700. Juke boxes. J. FOUFOUNIS. Dec. 13, 1963 [Dec. 13, 1962], No. 54685/66. Divided out of 1,073,695. Heading G5R. The description is substantially the same as that of Specification 1,073,695 but the claims differ.
Patent GB-1145110-A (GB)
Title: Microwave shutter
IPC: H01P1/12
Filed: 1966-12-07
Abstract: 1,145,110. Waveguide switches. VARIAN ASSOCIATES. 7 Dec., 1966 [27 Dec., 1965], No. 54839/66. Heading H1W. A waveguide shutter is constituted by a nickel-coated soft iron rod 9 having mounted on its end a dielectric plug 13 which, when the shutter is closed-as shown-contacts the lower wall 12 of the waveguide 6, to form a series resonant circuit, whereby the waveguide is effectively short-circuited. The shutter is opened by causing the rod to retract within a gold-plated bronze sleeve 14 against the action of a spring 16 by energizing an electromagnet mounted about the sleeve. To provide minimum insertion loss and effective short-circuiting in the open and the closed positions, respectively, the sleeve and rod are arranged to constitute a # /2 choke in the open position, while in the closed position, the portion of the rod retained in the sleeve is a multiple of #/4. Dimensional data are given.
Patent GB-1448527-A (GB)
Title: Variable capacitor
IPC: H01G/
Filed: 1974-12-19
Abstract: 1448527 Variable capacitors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Dec 1974 [22 Dec 1973] 54895/74 Heading H1M A variable capacitor comprises an endless belt 15 movable around drums 7, 11 and having a metal coating on its inside surface to provide one of the electrodes, the other being constituted by the drum 7 or a conductive portion of its surface, there being interposed dielectric material, the belt being formed from metal-coated plastics strip by securing an end A thereof to an intermediate portion B, leaving a tail portion to provide a flexible connection to the belt. As shown in Fig. 2, separate electrodes 17<SP>1</SP> with lead portions 1711 are supported on the belt, and rotation of drum 5 moves portions 17<SP>1</SP> into or out of capacitive relationship with the second electrode. The dielectric may be polyparaxylylene deposited on the inside surface of the belt or on drum 5. The axis of drum 11 is adjustable whereby springs 23 can act to keep the belt taut.
Patent GB-1174401-A (GB)
Title: Improvements in or relating to Electrical Connectors.
Inventor: WILLIAMSON HAROLD WALTER
IPC: H01R11/14
Filed: 1965-12-29
Abstract: 1,174,401. Clamps, hooks. P. & B. ENG. CO. Ltd. and H. W. WILLIAMSON. 22 Dec., 1966 [29 Dec., 1965]. No. 55028/65. Headings E2A and E2B. [Also in Division H2] An electrical connector comprises a body 1 having two portions 2, 3 which hook over a conductor 14, Fig. 6, from opposite sides, and a clamping member 4 in threaded engagement with the body 1 such that the member may be screwed upwards to press the conductor against hooked portions 2, 3. A pin 6 on shank 5 co-operates with a slot in a mounting member 8, the latter having a second slot which engages with a rib 11 on the body 1. A cable lug. is connected to the connector with a nut and bolt passing through holes 12, 13. In mounting the connector over the conductor, the device is first placed near the conductor as shown in Fig. 2, and the mounting member 8 is turned through 90‹, Fig. 3 (not shown), this rotation causing the hooked portion to hook over the conductor. The member 8 is then pulled downwards Fig. 4 (not shown) so that the second slot in mounting member 8 and the rib 11 on the body 1 disengage, the pin 6 slides to the top of the slot 7 and the hooked portions are pressed against the conductor. Member 8 is then rotated clockwise Fig. 5 (not shown) to screw threaded shank 5 upwards and so cause the clamping member to press the conductor against the hooked portions.
Patent GB-1284243-A (GB)
Title: Multi-detection system
IPC: G01R31/00
Filed: 1970-11-23
Abstract: 1284243 Indicator device BENDIX CORP 23 Nov 1970 [22 Dec 1969] 55607/70 Heading B7H [Also in Divisions F2 G4 and G5] In a multi-detection system a plurality of detection sensors 18, 20, 22, 24, 26, 28, 124 indicate an out of tolerance condition of respective parameters, such as brake lining wear or fluid level in a vehicle braking system and the sensors are coupled by encoding logic 14 to light emitting diodes 16 constituting a single visual indicator for each out of tolerance condition. The outputs L, P, S, A, F and B of the sensors are connected to NOR gates 42, 44, 46, 48, 50, 52 and 54 containing the encoding logic 14. Each NOR gate and diode combination is used to form one segment of a seven-segment character a, b, c, d, e, f, g, Fig. 3. Therefore the output L, for example, is fed into the NOR gates that control segments d, e and f, and output P is fed into segments a, b, e, f and g. The test sensor 124 is formed by a connection from the starter of the vehicle to form the voltage B which also represents a vacuum loss. Voltage B controls the NOR gate-light emitting diode combination of all segments a, b, c, d, e, f and g and can therefore be used as the test sensor 124 to determine if all the diodes 16 are functioning properly. The individual segments of the diodes can be reshaped by the use of fibre optic techniques to provide better character representation.
Patent GB-1261957-A (GB)
Title: Improvements in or relating to corner reflectors
Inventor: BURGESS JAMES WILLIAM
IPC: H01Q15/18
Filed: 1969-11-17
Abstract: 1,261,957. Radio reflectors. CHEMRING Ltd. 12 Aug., 1970 [17 Nov., 1969], No. 56133/69. Heading H4A. A radar corner reflector is made up of rigid panels each of which has an inner lamina of reflecting material, such as metallic or metallized mesh, sandwiched between outer laminal of dielectric material, such as resin-bonded glass fibres. A light alloy mounting bracket may be provided, so that the corner reflector may be mounted, for example, on the mast of a boat, or on the superstructure of a marker buoy.
Patent GB-1162737-A (GB)
Title: Vapor Condensing Apparatus
IPC: F26B5/06
Filed: 1967-12-12
Abstract: 1,162,737. Surface condensers; defrosting. HULL CORP. 12 Dec., 1967 [16 Dec., 1966], No. 56490/67. Headings F4H and F4S. A vapour condenser for use at sub-atmospheric pressure comprises a tubular condenser unit 30 contained within and spaced from a hollow outer housing defining inner and outer chambers 54, 56. The vapour to be condensed, e.g. water vapour from a freeze drying process, on entering via inlet 70, passes through an apertured tube. 78 which uniformly distributes the vapour over the inner surface of the condenser unit 30, said vapour then passing countercurrently through the outer chamber 56 along the outer surface of the condenser unit 30. The arrangement is such that the vapour condensate is deposited as a layer of ice on both surfaces of the condenser unit and the non-condensable gases e.g. air &c. are withdrawn by a vacuum pump through outlet conduit 74. The condenser unit comprises four arcuate sections (30<SP>1</SP>, Fig. 2), each section comprising a pair of plates 32, each stamped with a plurality of channels and which when welded together define a continuous serpentine passageway 34 between fluid inlet and outlet connections (36, Fig. 3). Refrigerant fluid is supplied to each section through tubing 38 from a common header 58, said fluid being returned through tubing 40 to a header 64 and then via pipe 66 to a refrigerant source (not shown) for recirculation. A viewing window 28 is provided in the front 14 of the outer housing. To remove the layer of ice which has collected on the surface of the condenser unit, the pressure inside the housing is increased to atmospheric and hot water or steam is introduced through one or more conduits 84, the melted ice being drained off through a valve-controlled drain pipe 86.