baber/WOPTO huggingface dataset:
Patent GB-1039196-A (GB)
Title: Repeater amplifier
Inventor: LAURENT MARCEL VITAL ARTHUR CH
IPC: H04M1/74
Filed: 1964-09-14
Abstract: 1,039,196. Repeaters. STANDARD TELEPHONES & CABLES Ltd. Sept. 14, 1964, No. 37422/64. Heading H4R. In a repeater amplifier A, Fig. 3, fed with power over a line C via power separating filters F1 and F2 and a Zener diode Z a voltage surge protecting device, e.g. gas discharge tube, G is provided in shunt with the amplifier and in series with an inductance, e.g. L2 of filter F2. The transformer T, provided to increase the voltage applied to the surge limiting device when the surge is of the same polarity as the D.C. supply voltage, may be omitted, Fig. 1 (not shown), The transformer may be replaced by an inductance I, Fig. 2 (not shown), in series with the Zener diode. In alternative forms the surge limiter G is connected in series with the inductors of both power separating filters, Figs. 4 and 5 (not shown).
Patent GB-622962-A (GB)
Title: Improvements in or relating to circuits for operating detecting and/or locating devices
IPC: G01V3/10
Filed: 1946-12-19
Abstract: 622,962. Indicating proximity of bodies. CINEMA - TELEVISION, Ltd., and SOWERBY, J. M. Dec. 19, 1946, No. 37438. [Class 37] [Also in Group XL (c)] A circuit for detecting and/or locating magnetic or electrically conducting bodies comprises coils having a minimum degree of coupling which is increased. by the proximity of the body and means for nullifying changes in the coupling which do not result from the body. As described, coils C are positioned to have minimum coupling which is increased by the passage of a conducting or magnetic object between them ; the signals are amplified at A and applied to a rectifier R which includes smoothing circuits of time constant short compared with the time normally required for the coupling to be increased by an object, but long compared with the period of the A.C. energizing the coil C1 ; as a consequence, any relatively small or long term variation in coupling will merely vary the level of the D.C. output of R. A sudden change of coupling will produce a sudden change of level; the pulse -passed by the coupling condenser is applied to a phase-splitter 1 to give out-ofphase potentials on the grids of valve 2 which is normally nearly cut-off ; the negative pulse on one grid cuts-off one triode, and the other triode acts as a cathode follower to trigger flip-flop 3 to actuate relay 6.
Patent GB-1272408-A (GB)
Title: Single-phase pesticidal liquid compositions and methods of controlling pests by means of the same
IPC: A01N25/32
Filed: 1969-07-25
Abstract: 1,272,408. Pesticide solutions containing waxes. PHILIPS GLOEILAMPENFABRIEKEN N.V. 25 July, 1969 [30 July, 1968; 3 Jan., 1969], No. 37574/69. Heading A5E. A single phase pesticidal liquid composition comprises a pesticide, at least one vegetable or animal wax which consists of more than 25% by weight of an ester or esters formed from an aliphatic alcohol containing more than 10 carbon atoms and an aliphatic carboxylic acid containing more than 10 carbon atoms, and a low volatile organic solvent for said pesticide. The pesticide may be a chlorinated hydrocarbon, an organophosphorus compound, or a carbonate of which pesticides many examples are given or are of the following acaricides:-tetradifon, tetrasul, 2, 2, 2-trichloro-1, 1-di (4-chlorophenyl) ethanol, para-dichloro benzene, fenson, chlorofenson and binapacryl or a mixture of an organophosphorus compound and tetradifon. Examples refer to the use of (I) DDT, (II) endrin, (III) a mixture of tetradifon and S-(1, 2-dicarbethoxyethyl) O, O-dimethyldithiophosphate, and (IV) tetrasul. The wax may be carnauba wax, candelilla wax, flax wax, bees wax, ouricuny wax, cotton wax, sunflower wax or esparto wax. The low volatile solvent is restricted to xylene, cyclohexanone, naphtha, high boiling-point ketones, highboiling point high-aromatic hydrocarbons, terpenes, high boiling-point alcohols and hydrogenated aromatic hydrocarbons preferably in an amount 0.5-5% wt./vol. of wax. The single-phase liquid composition may also contain a mixture of lipophilic and hydrophilic emulsifiers. The liquid composition may be sprayed onto crops such as cucumbers, beans or cotton in amounts from 0.5 to 20 litres per hectane. Alternatively an aqueous emulsion may be used containing 0.1-20% by weight/ vol of a pesticidal liquid composition according to the invention.
Patent GB-362172-A (GB)
Title: Improvements in methods of preserving rubber and products obtained thereby
IPC: C08K5/18
Filed: 1930-12-13
Abstract: Cyclohexylnaphthylamine is prepared by heating together in an autoclave cyclohexylamine and a -or b - naphthol.  Impurities may be removed from the product by washing with dilute sodium hydroxide, water, and dilute hydrochloric acid, and finally water, excess moisture being removed by vacuum distillation.  The product is an anti-oxidant for rubber.  Specification 281,616, [Class 2 (iii), Dyes &c.], is referred to.ALSO:Rubber is vulcanized in the presence of p cyclohexyl-a -or-b -naphthylamine which acts as an antioxidant. In an example a mixing comprises acetone-extracted rubber, zinc oxide, sulphur, stearic acid, hexamethylenetetramine and the anti-oxidant. Specification 281,616, [Class 70, India-rubber &c.], is referred to. The cyclohexylnaphthylamine is prepared by autoclaving cyclohexylamine with a - or b -naphthol.
Patent GB-369922-A (GB)
Title: Improvements relating to bracket-like fittings for use in connection with rods or tubes
IPC: A47H1/142
Filed: 1930-12-15
Abstract: 369,922. Brackets. WALES, Ltd. and ADIE, B., Atlas Works, Oozells Street, Birmingham. Dec. 15, 1930, No. 37701. [Class 52 (v).] A bracket of the kind having a rod-encircling clip or socket and employed, e.g. for supporting and guiding the sliding rails of a dropside cot is formed with doubly convex bulges 7c in the webs 7b which connect the socket 7, in which the rod 8 slides, to the flanges 7a. The bulges 7c are convex in both horizontal and vertical sections. The bracket is formed from a blank of the shape shown in Fig. 3.
Patent GB-375268-A (GB)
Title: Nail
IPC: F16B15/02
Filed: 1930-12-17
Abstract: 375,268. Nails. GROB, A., 28, Dienerstrasse, Z³rich, Switzerland. Dec. 17, 1930, No. 38044. Convention date, May 5. Void [Published under Sect. 91 of the Acts]. [Class 89 (ii).] For the purpose of countersinking, the head of a nail is provided with one or more recesses of any suitable shape. Examples are shown of tapered, cruciform, and undercut recesses.
Patent GB-619824-A (GB)
Title: Improvements relating to friction lighters
IPC: F23Q2/06
Filed: 1946-12-30
Abstract: 619,824. Frictional lighters. BENEY (1938), Ltd., and LEWIN, P. W. Dec. 30, 1946, No. 38059. [Class 75 (iii)] In a frictional lighter the friction wheel, flint and means for urging the flint into contact with the friction wheel are pivotally mounted as a unit on the lighter body about an axis at right angles to the rotational axis of the friction wheel so that when pressure is applied to the friction wheel or an operating member associated therewith the spark producing unit is rocked to release a spring- actioned cover. A friction wheel 22 and a serrated operating roll 23 are rotatably mounted in a recess 21 in a member 18 which is shaped as an inverted L and contains a bore in its horizontal part 25 housing a spring-urged flint. The member 18 is pivoted in a recess 17 in the lighter body by means of a pivot pin 19, a spring-pressed plunger 20 urging it to rotate clockwise so that a hook on the member 18 is held in engagement with an aperture in the cover 14. The cover 14 is unlatched bv rocking the member 18 and is rotated into the open position by a spring- pressed plunger. Movement of the member 18 is limited by a pin thereon engaging the wick nipple.
Patent GB-1126087-A (GB)
Title: Motor vehicle headlamp systems
Inventor: STEVENS DEREK NORMAN
IPC: B60Q1/06
Filed: 1966-08-25
Abstract: 1,126,087. Retractable vehicle lamps. GENERAL MOTORS Ltd. 24 Aug., 1967 [25 Aug., 1966], No. 38123/66. Heading F4R. The headlamps L of a motor vehicle are mounted on pivot shafts 1 carrying pulleys 2 for a cable 3, the ends of which are secured to a member, e.g. a rack 6, engaging a gear 7 driven by a reversible electric motor 8 so that rotation of the motor in one direction elevates the headlamps into operative position and in the other direction retracts them. The rack 6 moves in a channel 9, the ends of which limit the movement in either direction and is pressed into engagement with the gear 7 by a spring pressed block 24 in the wall of the housing 10 of the channel. The cable 3 is kept under tension by a spring 17. The movement of the cable 3 is in excess of that required to pivot either of the shafts 1, a friction coupling sleeve 22 between the pulley 2 and the shaft 1 allowing the cable to slip when the lamp reaches its end positions which are defined by limit stops which may incorporate pressure switches to switch the lamps on or off. The motor is controlled by a switch having two operative positions, for elevating and retracting respectively, and which may also serve to switch the lamps on and off.
Patent GB-1206990-A (GB)
Title: Testing water activated primary cells
Inventor: INKERSOLE DENIS
IPC: H01M6/50
Filed: 1968-08-09
Abstract: 1,206,990. Testing primary cells. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. July 28, 1969, [Aug.9, 1968], No.38200/68. Heading G1U. To test a water activated primary cell without destructively activating it the cell is connected to an electric circuit for generating an A.C. signal the frequency of which is variable over a range of frequencies and it is ascertained whether or not the capacitance of the plates of the cell resonates with a given inductance within a given frequency band of the A.C. signal. The inductance may comprise the filament of a lamp to which the cell is normally connected which in use lights to indicate the presence of water in the cell. The cell-lamp system is for use e.g. in providing warning signals in rescue and life saving equipment, the cell having plates of silver chloride and magnesium suitably spaced to permit the passage of sea water. The test is conducted by applying a sweep frequency from an oscillator 2 controlled by a ramp voltage generator 1, after frequency multiplication, to the terminals 8, 9 of the cell. The signal across these terminals is applied to the y plates of a CRO. If the cell is satisfactory it should have a capacitance which with the lamp inductance results in a resonant frequency in the sweep range of the oscillator-frequency multiplier and this will be indicated by the appearance of a blip in the trace on the CRO. To check the firmness of connections &c. within the cell, the resilient casing of the cell is subjected to pressure from a pneumatic system 12. The position of the blip on the trace should not alter significantly.
Patent GB-369994-A (GB)
Title: Manufacture of solutions of anaesthetics
IPC: A61K31/16
Filed: 1930-12-19
Abstract: Aqueous solutions of an sthetics are prepared with a pH value about that of blood or tissue, i.e. about pH = 7,3, by agitating an aqueous solution of an an sthetic salt with at least the quantity of an an sthetic base which is capable of dissolving in the solution, and separating any excess.  Examples describe the preparation of solutions in which the salt component may be either a salt of cocaine or of para-amino-benzoyl-diethyl-amino-ethanol and the base component may be either of these bases.
Patent GB-369931-A (GB)
Title: Improvements in and relating to furnaces
IPC: F27B1/08
Filed: 1930-12-22
Abstract: In a process of operating for melting and refining steel &c. a non-oxidizing is passed in a closed circuit upwards through a shaft furnace and downwards through a gas-heating stove containing incandescent solid fuel.  The furnace may be associated with two stoves, which are blown hot, and used for heating the circulating gas alternately, and where a single stove is used the gases produced during the hot blowing stage are passed to the furnace, in which they are burnt with pure or nearly pure oxygen.  The metal melted in the shaft may be refined in a coal-dust fired open-hearth furnace, the products of combustion from which are passed to the shaft.  When the process is used for the production of steel from scrap the refining may be effected by oxygen, or by a coal-dust oxygen flame.
Patent GB-1347611-A (GB)
Title: Fluid pump
IPC: F04C2/30
Filed: 1972-08-21
Abstract: 1347611 Rotary positive displacement pumps FORD MOTOR CO Ltd 21 Aug 1972 [22 Sept 1971] 38863/72 Heading F1F A pump of the type in which a rotor 24 and cam 34 co-operate to form two pumping chambers with respective inlets and outlets, the pumping elements being in the form of spring-biased slippers, comprises a first housing part 18 and a second housing part 70 which is cup-shaped and has its open end attached to part 18 such that it surrounds the cam and rotor, a combined flow control and pressure relief valve 88 being provided in the first housing part 18 to control outlet flow and pressure. Valve 88 comprises a valve member 90 with lands 94, 96 slidable in chamber 92 and urged by spring 106 against a fitting 108 screwed into chamber 92. One-way valve member 130 is located inside valve member 90, the interior of valve 90 communicating with the annular space between lands 94, 96 via ports 132. Valve member 90 has a metering pin 116 which is tapered such that, when member 90 moves leftwards away from fitting 108, a port 118 in the fitting has its flow section progressively diminished. The outlets from the pumping chambers communicate with an annular chamber 104 to the right of member 90. Port 118 leads to a passage 110 in fitting 108, this passage leading to an outlet line to some device such as a power steering system. Radial by-pass ports 112 lead from passage 110 to an annular space 114 which communicates with chamber 92 to the left of valve member 90 via passage 120 in housing portion 18, openings 122, 124 in pressure plate 60 connected by a groove 126 in a port plate 36, and a passage 128 in housing 18. Outlet pressure in annular space 104 acts on the right end of valve member 90 to move it leftwards thus permitting flow through orifice 118 into passage 110. Increase in pressure moves the member 90 further left, progressively restricting orifice 118 to reduce flow. If the pressure in outlet passage 110 increases to a predetermined value then such pressure is transmitted via passages 120, 122, 126, 124 and 128 to the chamber to the left of member 90 thus opening valve 130 and by-passing the flow to the annular chamber between the lands and back to the low pressure side of the pump.
Patent GB-897970-A (GB)
Title: Improvements in or relating to draught excluders for attachment to doors and the like
IPC: E06B7/20
Filed: 1959-11-17
Abstract: 897,970. Draught excluders. JARVIS, H. July 1, 1960 [Nov. 17, 1959], No. 38903/59. Class 20(3) The vertically movable excluder strip 3 operable under the control of a spring-loaded slidable bar 2 on contact with the door jamb, is independently urged in a downward direction by springs 15 acting on levers 8 pivoted at 9 to the housing 1 and coupled to the strip 3 by a pin and slot coupling 12, 11 and the loading on the bar 2, by springs 5 pivoted at 6 to the housing and acting on the bar through the projection 7, is such that when the bar is free, the spring 5 pushes the bar to its inoperative position (i.e., to the left, as shown), and effects the lifting of the strip 3 against the pressure of springs 15. The coupling between the bar 1 and the strip 3 has a lost motion effected by the projection 7 riding along the flat surface 16 of the lever 8 during the initial stages of operating movement of bar 2, at the end of which the projection 7 comes opposite a recess 17a in the lever 8 and enables the lever 8 to rotate and lower the strip. The spring 5 may be replaced by a helical spring connected between the bar 2 and the housing 1. In another modification the levers 8 may be replaced by the spring arm 15 being coupled directly to the strip 3 by a pin and slot coupling, the lost motion being then effected between a thrust transmitting member to the spring 5 and the bar 2. Specification 847, 812 is referred to.
Patent GB-349061-A (GB)
Title: Improved process of recovering carbon disulphide
IPC: C01B31/26
Filed: 1929-12-19
Abstract: Carbon disulphide is absorbed from gas mixtures such as the exit gases obtained in the process described in Specification 331,734, [Class 1 (ii), Inorganic compounds, other than &c.], by scrubbing with a solvent mixture consisting of a stripping oil suitable for benzol recovery i.e. a coal tar distillate such as creosote oil and heavy liquid paraffin, boiling at or above 300 DEG  C.  The carbon disulphide is then recovered from the solvent e.g. by steam distillation.  The solvent mixture may contain from 10 per cent up to 90 per cent of liquid paraffin, a preferred mixture consisting of equal parts by volume of the two components. Specification 336,319, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-1030685-A (GB)
Title: Improvements relating to the electrodeposition of nickel coatings followed by a chromium coating
Inventor: FLINT GEORGE NORMAN
IPC: C25D5/14
Filed: 1962-10-15
Abstract: A metal surface is electroplated successively with semi-bright Ni from a sulphur-free bath, bright Ni from a sulphur-containing bath, bright Ni-Co from a bath at least substantially free from sulphur, and finally a Cr flash layer.  Typically the base metal is ferrous and the alloy contains 5 to 16% Co, the remainder being Ni, with the total thickness of the Ni layer being about 0.0012 inch the bright Ni layer being 0.0001 to 0.0005 inch, the alloy layer being 0.00005 to 0.0005 inch, and the ratio of the thickness of the alloy, bright Ni and semi-bright Ni layers being 1:1:2. The brightener for the alloy layer bath may be sodium formate, the bath being continuously filtered, e.g. by pumping through activated carbon, to remove sulphur brightener introduced by carry over from the bright Ni bath.
Patent GB-1115052-A (GB)
Title: Method of purifying monomeric precursors of organo-polysiloxanes
Inventor: BURZYNSKI ALFRED JOHN
IPC: C07F7/20
Filed: 1965-09-13
Abstract: A preformed, isolated, impure alkoxy silane is purified to an essentially zero acid content (less than 5 parts of acid, calculated as HCl, per million parts of alkoxysilane) by distillation from admixture with a reagent which will convert acidic or potentially acidic species present in the impure alkoxysilane to non-acidic non-volatile compounds.  Alkoxy silanes used in the examples are methylmethoxysilane, methyltrimethoxysilane, dimethyldimethoxysilane and phenyltriethoxysilane.  The reagent is preferably used in amount from 0.001 to 5% by weight of the alkoxysilane.  Suitable reagents are: alkali or alkaline earth metal hydroxides, alkali metal salts of organic acids and weak inorganic acids (e.g. carbonates), alkali metal alkoxides and metal hydrides, e.g. lithium aluminium hydride. In the examples are used LiAlH4, Na2CO3, NaOH, NaOC2H5 and NaOCH3.
Patent GB-906303-A (GB)
Title: Centrifugal apparatus for conveying liquid or gasiform fluids and removing the solid particles suspended therein
IPC: B01D21/00
Filed: 1959-11-18
Abstract: 906,303. Centrifugal separators. PRECISION MECANIQUE LABINAL. Nov. 18, 1959 [Nov. 19, 1958 ; Dec. 9, 1958], No. 39078/59. Class 23. [Also in Groups I and XXVI] Apparatus for moving a fluid and separating particles therefrom comprises a rotor having a bladed part rotating the fluid to remove coarse particles by density separation, and an annular filtering screen downstream of the bladed part for the removal of fine particles. The screen has vertical pleats as shown in Fig. 5. The rotor of Fig. 1 is adapted to be immersed in liquid within a container having a lid on which is mounted a motor driving the rotor shaft 1, the container having baffles preventing rotation of all the liquid. Liquid drawn in through the aperture 6 passes between blades 4 into a chamber 9 where coarse solids are deposited. From the chamber liquid passes through the screen 8 and a perforated cylinder 7 to remove fine solids, and is finally discharged from the rotor through blades 12. The rotor may be dismantled for cleaning by removing a nut 2. In a modification (Fig. 3, not shown) for removing solids from air, the rotor has a short shaft driven from a motor which depends from springs, and the chamber 9 is extended downwardly past the blades 4 to form a removable annular collecting pocket. The apparatus shown in Fig. 6 is adapted to remove solid and liquid particles from air, the collecting chamber 45 downstream of the blades 46 having a plug 45b removable for discharge of liquid. The rotor has an additional screen 49a below the screen 49, liquid thrown from the screen 49 passing through ports 53a into a chamber 54 having a plug 54a. Blades 51 are attached to the screen 49. In the water purifying plant shown in Fig. 7 the rotor is housed in a pit 55. Water is continuously supplied to the top of the pit through a duct 76 and passes into the rotor 56 through blades 66 to deposit solids in the chamber 63. The water passes through the screen 65 and turbine blades 64 into a volute chamber 74 to discharge from the pit. Specification 838,524 is referred to.
Patent GB-1243775-A (GB)
Title: Cleaning device
Inventor: BROWN GORDON F
IPC: B60S3/04
Filed: 1967-08-24
Abstract: 1,243,775. Valves. STEWART-WARNER Ltd. 21 Aug., 1968 [24 Aug., 1967], No. 39088/67. Heading F2V. [Also in Division A4] In a washing device, e.g. a hose-brush for washing cars, a gravity-operated valve 15, is arranged to close a duct leading to one outlet for the brush 16 and open a duct leading to a nozzle 17, when the latter is pointing downwardly. On turning handle 13 and arm 12, about its rotary connection to handle 14, so that the brush 16 faces downwardly, a ball (19) falls from one end of a passage (18) to the other, to unblock the first duct and block the second. The handle 14 may be connected, by a flexible hose, to a wheel-mounted container for water and detergent associated with an electric pump, controlled by a coin-freed timer. A selector switch enables the pump to deliver water or a water/detergent mixture.
Patent GB-933762-A (GB)
Title: Improvements in or relating to magnetic recording media
Inventor: DUTTON GILBERT FARADAY
IPC: G11B5/845
Filed: 1958-12-04
Abstract: 933,762. Magnetic structures. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 3, 1959 [Dec. 4, 1958], No. 39110/58. Class 38 (2). In a method of manufacturing a magnetic tape similar to that disclosed in Specification 789,613 the anistropic magnetic particles are oriented at least partially transversely to the length of the tape by a magnetic pole disposed obliquely to the tape. The forward end of the magnetic pole extends beyond the tape at 3 to avoid a fringing field at the edge of the tape. The tape may travel on an aluminium support above the magnetic pole.