baber/WOPTO huggingface dataset:
Patent GB-1064491-A (GB)
Title: Improvements in and relating to the production of unsaturated esters
Inventor: COTTERILL COLIN BERTIE
IPC: C07C69/01
Filed: 1963-04-09
Abstract: A mixture containing an unsaturated ester of a saturated aliphatic or aromatic mono- or dicarboxylic acid, e.g. vinyl or allyl acetate, produced by contacting an olefinic hydrocarbon and molecular oxygen with a solution comprising a saturated aliphatic or aromatic mono- or dicarboxylic acid, an ionizable saturated aliphatic or aromatic mono- or dicarboxylate, a palladium salt, a redox system and halide ions is distilled in the presence of a saturated aliphatic or aromatic mono- or dicarboxylate of an alkali metal, of an alkaline earth metal or of magnesium.  The carboxylate may be prepared in situ by adding the corresponding base, e.g. a hydroxide or carbonate.
Patent GB-696999-A (GB)
Title: Improvements in and relating to connections for rigid tubes
Inventor: LAMARRE ROGER ROLAND
IPC: F16L19/10
Filed: 1952-06-05
Abstract: 696,999. Tube couplings. AEROQUIP CORPORATION. June 5, 1952. No. 14269/52. Class 99 (i). A sleeve 12 which is deformed by the axially applied pressure of a nut 14 screwed onto a nipple 32 to which a rigid tube 10 is coupled, has an inward flange 20 abutting the end of the tube, and an annular knife edge 16 which bites into the surface of the tube and is axially-spaced, e.g. by a concave portion 26, from a tube-engaging end portion 24. The nut may have an extension 36 to support the tube against vibration, and an inner surface 34 inclined at an angle of 20‹ to 30‹ to the axis of the coupling and contacting a rounded exterior surface of the sleeve. Preferably, the diameter of the end 24 is greater than that of the edge 16. There may be an interior surface portion 22 of the sleeve in sliding engagement with the tube..
Patent GB-865275-A (GB)
Title: Improvements in devices for controlling the admission of liquid into a container
Inventor: WEIR HENRY JOHN
IPC: D06F39/08
Filed: 1957-11-18
Abstract: 865,275. Regulating liquid levels. WEIR ECONAMATICS Ltd. Nov. 18, 1957, No. 14304/59. Divided out of 865,274. Class 123(1) A device for initiating the admission of liquid to a container, especially the industrial washing machine described in the original Specification, and for stopping the admission when the liquid has reached a preset level comprises a metering vessel 6 connected to the container by a flexible pipe 5 and suspended from a fixed point by a spring 7. The vessel 6 is connected by a system of levers 8 ... 12 to a member 13 supporting a switch 4 adjacent a ball crank lever 2 which bears on a control cam 1. In operation liquid is admitted to the container by electrical means when the cam acts on the lever 2 to raise it off the switch 4. As the levels in the container and interconnected metering vessel increase the latter falls and the levers move the switch 4 towards the lever 2. When the preset level is reached, corresponding to a position of the lever 2 determined by the height of the cam 1, the lever 2 trips the switch 4 and the admission of liquid is stopped.
Patent GB-234296-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/08
Filed: 1924-06-13
Abstract: 234,296. Siemens Bros. & Co., Ltd., Petithory, E. A., and Baker, F. June 13, 1924. Addition to 113,565. Supporting. - In devices as described in the parent Specification in which the unintentional operation of the switch, controlled by the weight of a handset, is prevented by the employment of a lost motion device between the operating set and the switch contacts, a freely pivoted member 12 is operated in either direction after due lost motion by abutments 14, 15 on the switch arm 1, and is positioned and controlled by a bulge 13 on a spring member 9 which operates the instrument contacts 6, 7, 8.
Patent GB-745450-A (GB)
Title: Furniture cream which will remove hot water marks
IPC: C09G1/08
Filed: 1953-05-21
Abstract: A furniture cream is made by melting beeswax, adding soft soap, hot water and turpentine, stirring continuously, and, after the mixture has thickened, adding a small proportion of vinegar.
Patent GB-717166-A (GB)
Title: Improvements in or relating to the manufacture of foraminated metal screens
Inventor: HOLMAN HERBERT EDWARD
IPC: H01J9/14
Filed: 1951-06-19
Abstract: 717,166. Etching. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 10, 1952 [June 19, 1951], No. 14473/51. Class 100 (2). [Also in Group XXII] In a method of making perforated metal screens a member 1, Fig 1, having ribs 3 continuous with thinner areas 4 is intermittently etched until the thinner areas 4 are perforated. A silver screen is made by e'ectrodepositing a member 1 on a grooved copper matrix 2 and repeatedly etching the member 1 in a mixture of concentrated sulphuric and nitric acid, followed by repeated washing and drying. In another method the member 1 is made the cathode in an etching solution of nitric acid which renders the surface passive, the passivity being removed by passing intermittent pulses of electric current. In another method the member 1 is etched by electrolysis in a silver cyanide bath containing excess cyanide. Intermittent passage of electric current automatical'y results from the member becoming alternately inhibited and uninhibited.
Patent GB-1063638-A (GB)
Title: Improvements in or relating to carpet sweepers and brushes therefor
IPC: A47L11/33
Filed: 1964-04-08
Abstract: 1,063,638. Rotary brushes. BISSELL A.G. April 8, 1964 [Dec. 19, 1963], No. 14493/64. Heading A4K. In order to prevent a carpet sweeper from being electrostatically charged by its rotary brush revolving in contact with a nap surface, the brush bristles are made of materials which develop charges of opposite polarity. In one form of the brush, bristles of nylon and polypropylene are mixed in the same tuft. Alternatively, individual bristles are formed from a mixture of these materials.
Patent GB-1399846-A (GB)
Title: Artificial reverberation device
IPC: G10K15/10
Filed: 1973-03-26
Abstract: 1399846 Reverberation systems AKG AKUSTISCHE U KINO-GERATE GmbH 26 March 1973 [29 March 1972] 14500/73 Heading H4R Two identical electromechanical transducers coupled via a delay element having a non-uniform propagation property are arranged in a differential circuit to which an input signal is applied and from which an output signal is taken which is equal to the difference between the electromotive forces arising in the transducers, each transducer acting as both a transmitter and receiver, thereby producing a non- periodic reverberation effect. In a first embodiment two moving coil or rotary magnetic type transducers R, R<SP>1</SP> having matched impedances are coupled by a non-uniform torsional spring 2 and the transducers are arranged in a bridge circuit with two identical resistors R1, R2. The difference output signal U2 is obtained across one diagonal of the bridge and the input U1 is applied to the other diagonal. A similar alternative bridge arrangement is illustrated in Fig. 2 (not shown) and an arrangement using a differential transformer in Fig. 3 (not shown). In place of the torsional spring arrangement a two dimensional delay element such as a thin plate 4 may be used on which the driving transducers are mounted symmetrically or alternatively a three dimensional enclosed air space having two transducers each acting as microphones/loud-speakers, mounted therein may be used, the circuitry being as for the torsional spring embodiment.
Patent GB-1081581-A (GB)
Title: Conveyors
Inventor: SHEARN JOHN UNDERWOOD
IPC: B21C47/24
Filed: 1965-04-06
Abstract: 1,081,581. Winding and reeling. DAVY & UNITED ENGINEERING CO. Ltd. March 18, 1966 [April 6, 1965], No. 14576/66. Heading B3E. [Also in Division B8] An arrangement for conveying coils having coil spools to an uncoiler or from a coiler, comprises a coil car 23 which can move along rails 22, in the direction of an expandable mandrel 16 of the uncoiler and which has first and second surfaces 34, 37 on a bracket 32 for receiving a coil 35 and an empty spool 38, and means for raising and lowering the bracket 32 to bring either the coil or the empty spool into alignment with the mandrel. The bracket 32 is raised and lowered by a cylinder 28. Coils are fed to the car by means of a walking beam bed comprising stationary saddles fixed to a pair of parallel fixed beams 42, 43 between Which is a moving beam 45 having further saddles fixed to it. The beam 45 rests on rollers (46), Fig. 2 (not shown), attached to mountings (47) which are pivoted at the upper left-hand comers to fixed points and at the bottom to another moving beam (48). The coils are conveyed by first moving the beam (48) towards the car 23 and then the beam 45, the end coil 35 being moved over the surface 34 on the carriage 23. The beam 45 is then lowered by retracting the beam 48. The carriage is then run along the rails 22 up to the mandrel 16 and the bracket 32 raised until the surface 37 is aligned with the mandrel to receive an empty spool pushed from the mandrel by a stripper plate 17. The bracket 32 is then lowered bringing the axis of the coil 35 into line with the mandrel and the car 23 is moved further along the rails to fit the spool on to the mandrel. As the car moves back, stops engage the empty spool to flip it on to a ramp 41 along which it runs to a location. 51 where it may be picked up by a similar car and placed on the mandrel 21 of a coiler on the other side of the rolling mill 12 from the uncoiler. The carriage is equally suitable for use with coilers or uncoilers. The surfaces 34, 37 may both be in the form of V-shaped saddles as shown, or the upper surface 34 may comprise motor-driven rollers to support and rotate the supported coil.
Patent GB-1430036-A (GB)
Title: Elastic covering  on a balance bearm for gymnastic purposes
IPC: A63B4/00
Filed: 1974-04-02
Abstract: 1430036 Balance beams R REUTHER 2 April 1974 [6 April 1973] 14624/74 Heading A6M A balance beam for gymnastic purposes is provided on the upper surface with an elastic layer 11 covered with a coating 17 wherein between the coating and the elastic layer an intermediate layer 14 is provided, having a greater flexual rigidity than the elastic layer and the coating. In a preferred embodiment, the intermediate layer 14 is made of wood or plastics material, the edge zones 12, 13 of the layer 11 are provided by a harder material than the central part, the sides of the beam are provided with a layer of elastic material 15, 16 and the beam is encased in carpet or plastics material 17; the various layers being fixed together by adhesive. The intermediate layer 14 may be formed by a leaf-type spring with a length corresponding to the length of the beam.
Patent GB-281222-A (GB)
Title: Clothes press
IPC: D06F71/02
Filed: 1927-05-31
Abstract: 281,222. Mathiasen, G. E. Nov. 27, 1926, [Convention date]. Ironing-machines with pressing action only. -The press head 8 is pivoted at 10 to the lower member of a pair of toggle links 14, 11 which member is in the form of a bell-crank the forward end of which is provided with a handle 22 and a stop 20 co-acting with the head to limit the movement of the links to a position slightly past dead centre. The upper link is pivoted in a lever 16 the rearward portion of which carries a. screw 18 for adjusting the distance between the head and buck in pressure-applying position. The head is guided in its movement by a spring-controlled arm 25. Opening movement of the press is limited by a strap 28. The buck is yieldingly and tiltably mounted by means of the spring-encircled spindle 6.
Patent GB-529398-A (GB)
Title: Improvements in or relating to the electro-deposition of manganese
IPC: C25C1/10
Filed: 1939-05-17
Abstract: 529,398. Electrodeposition of manganese, CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. May 17, 1939, No. 14748. Convention date, July 14, 1838. [Class 41] Manganese is deposited, electrolytically from sulphate or chloride solutions containing hydroxy amines such as hydroxylamine, mono-, di-, or tri-ethanolamine or diethylaminoethanol, which form complex ions with manganese. The electrolysis may be carried out in a non- diaphragm cell with circulation of the electrolyte or in a diaphragm cell in which case sulphur dioxide or other reducing agent may be added to the catholyte. The manganese content of the electrolyte may be replenished by treatment with manganous oxide or carbonate and impurities such as copper, zinc, iron, arsenic, cobalt and nickel are removed by treatment with powdered manganese.
Patent GB-450043-A (GB)
Title: Improvements in rotary electric switches
IPC: H01H25/06
Filed: 1935-05-21
Abstract: 450,043. Actuation of switches. MARR, J., 53, Victoria Street, Westminster. May 21, 1935, No. 14802. [Class 38 (v)] A multiple switch suitable for controlling the ignition and starter circuits of a motor vehicle comprises a barrel 1 carrying cams 3 which can be rotated by a knob 9 into several positions selectively to move contact springs 4 into engagement with fixed contact springs 5. The switch is held in its operative position by a spring catch 12 engaging notches in a metal disc 10 rotatable with the barrel 1. If the knob 9 is pulled to the right against a spring 13 the disc 10 engages springs 15 to close the starter circuit without affecting the operation of the contacts 4, 5. If the knob 9 is pushed to the left the barrel slides so that the cams 3 are out of alignment with the springs 4 and the switch cannot be operated by rotation. In this neutral position, cam discs 7 close certain of the contacts 4, 5 in all rotational positions of the barrel 1. Key operated locking means (not shown), may be provided for preventing movement from the neutral position. Also a pawl may be provided engaging disc 10 to prevent movement back into any position without going into the neutral position first. Also a catch may engage disc 10 to prevent the starter switch being operated except in certain rotational positions. In a modification the cams may be replaced by projections on a metal barrel 1 which engages single contact springs in certain positions and constitutes a common return for all the springs.
Patent GB-1206862-A (GB)
Title: Method and apparatus for determining the pour point of liquids
IPC: F25B19/00
Filed: 1968-03-27
Abstract: 1,206,862. Determining pour points. GULF RESEARCH AND DEVELOPMENT CO. March 27, 1968 [April 4, 1967], No.14829/68. Heading G1D. A method of determining the pour point or melting point of a liquid e. g. an oil, comprises the steps of supplying a flow of the liquid to a vertically disposed, conduit 62, 56 having a freeze chamber 50, the conduit having a cross-sectional area larger than the freeze chamber below the chamber 50, blocking the flow of liquid through the freeze chamber by closing a valve (not shown) in the conduit 56 below the freeze chamber to create a stationary column of liquid through the freeze chamber 50, freezing a slug of the liquid in the chamber 50, releasing the liquid below the frozen slug by opening the valve, permitting the slug to thaw, and detecting the temperature at which the slug and the column of liquid above it falls into the space below the freeze chamber 50. The freeze chamber 50 preferably comprises a cylinder of stainless steel held between thermally insulating fittings 60, 52 in the vertical conduit. The chamber 50 is surrounded by a porous-walled chamber 72 to which a refrigerant e. g. carbon dioxide from a cylinder may be supplied through a pipe 36. This chamber 50 is surrounded by a jacket 42 to which air which has been cooled by passage through a vortex cooler may be supplied. In use for measuring the pour point of oils, oil from a line in the refinery is led down the conduit 62, 56 and will be normally hot e. g. at 99C. The valve in the conduit 56 is closed and air supplied to the jacket 42. When the oil has been cooled to a desired temperature e.g. plus 4C. as sensed by a thermocouple 138 in the conduit refrigerant is supplied to the chamber 72 to freeze a slug of the oil in the chamber 50 after which the oil below the chamber 50 is drained away. The refrigerant supply is cut off and the slug allowed to thaw slowly by the effects of heat from the oil supply pipe until finally the slug falls from the chamber 50, the accompanying flow of oil down the conduit 62 giving a sudden rise of temperature of the thermocouple 138. The temperature of the slug at the point at which it falls from the chamber 50 is sensed by a thermocouple 168 coupled to a chart recorder. This actually measures the melting point of the sample but the pour point can be formed by calculation using known tables.
Patent GB-1032609-A (GB)
Title: Improvements in or relating to ionizing radiation measuring apparatus
IPC: H01J17/26
Filed: 1963-04-16
Abstract: 1,032,609. Ionization chambers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 16, 1963 [April 19, 1962], No. 14847/63. Heading H1D. [Also in Division F2] Ionizing radiation measuring apparatus comprises a radiation-sensitive gas-filled measuring chamber 1 (Figure not shown), an inlet aperture and outlet aperture for maintaining a flow of gas through the chamber, the cross-sectional area of one aperture being constant and that of the other being variable by an automatically adjustable regulating member 9 in such a manner that a pressure variation in the measuring system produces a different rate of gas flow so as to counteract the pressure variation, wherein the pressure of the gas in the measuring system is compared with the pressure of gas contained in an enclosed space 4 having the same temperature as the measuring system, wherein the position of the regulating member is determined by the pressure difference between the gas in the enclosed space and the gas in the system, the arrangement being such that on variation of the temperature, the pressure of the gas in the enclosed space causes the rate of gas flowing through the system to change such that the density of the gas in the measuring system remains substantially constant.
Patent GB-463225-A (GB)
Title: Improvements in or relating to letter scales
IPC: G01G19/00
Filed: 1936-05-26
Abstract: 463,225. Weighing apparatus. WEINTRAUD & CO. GES. May 26, 1936, No. 14881. Convention date, April 6. [Class 143] Pendulum-weight apparatus.-A letter-scale or like weighing device of the kind having a weighted and pivoted pendulum member 51 formed with an arcuate portion 5 concentric with the pivot 10 and terminating in a weight 11 is characterized by the feature that the mechanism is enclosed in a casing 1 provided with an opening through which the arcuate portion projects. An auxiliary weight 12, supported in a recess 15 when out of use, may be added to the weight 11 to increase the weighing capacity. The lower end of the pan support 4 is connected to a link 6 rigid with a pointer 7 indicating upon an arcuate portion 2 of the casing. The device is supported at one end on two bosses 18, and at the other end on a wide hinged plate 20 adjusted by a screw 19.
Patent GB-314010-A (GB)
Title: Improvements in and connected with primary and secondary electric batteries
IPC: H01M2/16
Filed: 1930-02-27
Abstract: 314,010. Holbrook, (nÚe Nocenzo), M. May 13, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 22, 1929]. Separators; absorbents.-Separators or filling means for batteries comprise sheets of wood paste or pulp obtained by treating pieces of wood the size of the fist, for example, to transform them into a porous wood paste. Resins and other organic substances are eliminated as in the manufacture of cellulose. The sheets are placed between the electrodes or between the electrodes and the walls of the cell, or all spaces may be filled with the sheets to form a dry battery.
Patent GB-894997-A (GB)
Title: Multi-signal colour picture pickup tube
Inventor: HOLY BOHUMIL
IPC: H04N9/07
Filed: 1960-04-28
Abstract: 894,997. Colour television pick-up tubes. TESLA, NARODNI PODNIK. April 28, 1960, No. 14922/60. Class 39 (1) [Also in Group XL (b)] In a multi-signal colour picture pick-up tube employing a bombardment - induced - conductive target, light is passed to the photocathode 6 through a strip filter 3 in which the individual colour strips are separated from one another by neutral-gray to black strips, i.e. strips having the same absorption throughout the spectrum, and absorbing a substantial proportion of the light. As shown, the groups of three colour strips 14; 15, 16 are separated by opaque strips 18 twice as wide as the opaque strips 17 between the individual colour strips of each group. The target comprises strip 9 of bombardment-inducedconductive material opposite each group of 3 colour strips. In the gaps 19 opposite the opaque strips 18 the slow or fast scanning beam 10 impinges either directly on the signal electrode 8, or on suitable material filling these gaps; to derive indexing signals for controlling the progressive opening of the amplifiers of the individual signal components.
Patent GB-108404-A (GB)
Title: Luminous Jewellery.
Inventor: HORNE WILLIAM CULLEN
IPC: A44C15/00
Filed: 1916-10-21
Abstract: 108,404. Horne, W. C. Oct. 21, 1916. Making jewellery. - Luminous jewellery is formed by treating a part of the article with a luminous material and protecting the same by a covering of varnish, gelatine, celluloid, glass &c. A perforated metal cover may be provided, and the luminous material, which may comprise an under-layer of metallic sulphide coated with a radio-active substance, may be spread upon a card, held in position by metal clips, or may be placed in indentations in the metal itself. Specification 100,546 is referred to.
Patent GB-1520628-A (GB)
Title: Discharge lamp
IPC: H01J61/56
Filed: 1977-04-12
Abstract: 1520628 Discharge lamps PHILIPS GLOEILAMPENFABRIEKEN NV 12 April 1977 [15 April 1976] 15037/77 Heading H1D A discharge lamp comprises a main discharge tube 1 within an envelope 2, the envelope also containing a capacitor 5 and a starter discharge tube 4.
Patent GB-1206202-A (GB)
Title: Junction transistors
IPC: H01L29/73
Filed: 1968-03-28
Abstract: 1,206,202. Semi-conductor devices. ITT INDUSTRIES Inc. 28 March, 1968 [4 April, 1967], No. 15062/63. Heading H1K. A junction transistor having a high breakdown voltage and low saturation voltage has a high-resistivity semi-conductor layer 4 between its collector 5 and base 2 of such thickness and resistivity that the space charge zone of the collector-base junction penetrates right through through this layer and partly into the adjacent low-resistivity semi-conductor layer of the same conductivity type when there is zero external voltage between the collector and the base. The high resistivity layer 4 and the base 2 are thicker where they meet the peripheral surface of the wafer than they are beneath the emitter, the junctions meeting the surface perpendicularly. The wafer is made of silicon into which boron and phosphorus are diffused as impurities. In one embodiment of the device, Fig. 4, not shown, the collector zone 5 is a solder mass in a cavity etched in the wafer to give the same collector configuration as Fig. 2. In this case a thin layer (5) of high conductivity is diffused into the wafer surface in which the cavity lies prior to the application of the solder.
Patent GB-578771-A (GB)
Title: Improvements in or relating to explosive missiles suitable for use against armour plate
IPC: F42B12/10
Filed: 1942-10-28
Abstract: 578,771. Ammunition projectiles. MORRIS, G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 28, 1942, No. 15105. [Class 9 (i)] The perforating or disrupting effect of a hollowcharge projectile is enhanced by forming the hollow - nose member 1 with, an annular knifeedge 5, adapted to "bite" into the armour-plate attacked, the internal diameter of the knife-edge being not less than half the maximum diameter of the cavity in the explosive charge 6. The knife-edge may be moulded into a member 1 of synthetic resinous or like plastic composition, and the member may be closed by a light integral diaphragm 7. Specification 28,030/11, [Class 9 (i)], is referred to.