baber/WOPTO huggingface dataset:
Patent GB-1461699-A (GB)
Title: Circuit arrangement for monitoring an electrical signal in an  electrical power installation
IPC: H02H7/16
Filed: 1974-02-13
Abstract: 1461699 Protective devices ERO-STARKSTROM KONDENSATOREN GmbH 13 Feb 1974 [16 Feb 1973] 6582/74 Heading H2K In a protective arrangement for batteries of star connected power capacitors 2 the star points are interconnected via a transducer 3 which when fault current flows in this interconnection transmits a radiated signal to a second transducer 5 which is electrically isolated from the first transducer and which controls an indicator 8 and a relay 10 via amplifier 6 and rectifier 7. The transducer 3 may be an electrooptical element, a radio transmitter, an electromagnet or an ultrasonic transmitter and the second transducer 5 may be respectively an electro-optical element, a radio receiver, a magneto-resistive element or an ultrasonic receiver. The transducer 3 may transmit pulse signals, which via transducer 5 modulate a constant frequency supply 4, the amplifier 6 being tuned to this constant frequency to reduce the effect of external interference.
Patent GB-1259927-A (GB)
Title: Gas cooled fast nuclear reactor
Inventor: HOOPER ALAN THOMAS
IPC: G21C1/00
Filed: 1970-02-11
Abstract: 1,259,927. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 19 April, 1971 [11 Feb., 1970], No. 6622/70. Heading G6C. In a gas cooled fast nuclear reactor, the prestressed concrete pressure vessel is penetrated by ducts connecting the interior and exterior of the vessel which are provided with a double set of seals to prevent the ejection of reactor components in the event of a large pressure surge within the vessel. The ferrile core, 1, and the surrounding fertile blanket, 2, are mounted, together with the heat exchangers 5, in the concrete pressure vessel 4. The exchangers are separated from the core by the shield wall 6 and the coolant gas is circulated between the core and the exchangers by the pumps 14. Ceramic coolant filters, 10, are mounted at the top of shield wall. The coolant duct 12 is accessible from the vessel outer surface through the seal 16, passage 15 and the support structure 35, which provides a second seal at the mouth of duct 12.
Patent GB-805853-A (GB)
Title: A process for removing acidic or basic vapours from gases
Inventor: RICHTER ADOLF
IPC: B01J41/04
Filed: 1955-03-07
Abstract: Polar gases are removed from gas mixtures containing them by passing the mixture through a layer of an ion-exchange resin which has a moisture content of 50 to 70 per cent by weight.
Patent GB-118574-A (GB)
Title: Improvements in and relating to Self-locking Pivoted Joints.
Inventor: WINDSOR CECIL STANLEY
IPC: F16B1/04
Filed: 1918-04-22
Abstract: 118,574. Windsor, C. S., (trading as Btrtle & Co., J.). April 22, 1918. Pivot adjustments.-Relates to self-locking pivot joints in which the unlocking-device can be used to operate also the pivoted member. The pivoted member b carries a cam-plate e which, with a rim of the housing-member c, forms a channel for receiving rollers f and cooperating spring-pressed segments g which automatically lock the member b in any set position. An unlocking-device comprises a handle member a pivoted on a stem d of the housing and provided with lugs q which enter between the rollers f. By a slight movement of the handle a, one of the rollers of each pair is pressed back, and a radial shoulder b<1>, shown dotted, becomes engaged with the corresponding shoulder of the handle member. Further movement causes the operation of the pivoted member b. The unlocking device may be removable to prevent unauthorized operation. The cam-block e may be fixed to the pivoted member b by pins l entering corresponding holes. The arrangement may be such that only one pair of rollers f is employed, or such that three pairs are used. The invention is specially applicable for motor vehicle hoods and wind screens, but it may be applied to other instruments or apparatus.
Patent GB-266911-A (GB)
Title: An improved sack holder for trucks
IPC: B62B1/14
Filed: 1926-03-13
Abstract: 266,911. Kent, H. C. March 13, 1926. Hand-trucks. - A sack-holding device 2 is secured to a hand-truck by a stem bracket 3 adapted to pass through guides 4 on the truck and to be clamped in position, by a locking screw 6. The heel 9 of the truck preferably projects at right angles to the truck sides so that the truck can stand upright on this heel and the wheels 10.
Patent GB-1493973-A (GB)
Title: Writing desk
IPC: A47B13/10
Filed: 1975-02-19
Abstract: 1493973 Desks GISPEN BV 19 Feb 1975 7013/75 Heading A4H A desk has a top comprising a main portion (1) having an outer boundary in the shape of part of a regular octagon and an inner boundary with a bight (10), and a subsidiary portion (2) having an outer boundary which includes an extension (8) of one of the sides of the main portion by a distance at least the side length of the octagon. The side (3) of the main portion opposite the extended side (7, 8) is shorter than the side length of the octagon. A plurality of such desks may have their sides in contact with one another.
Patent GB-830866-A (GB)
Title: A process for the manufacture of tetrahydrofurfuryl-ammonium compounds
IPC: C07D307/00
Filed: 1958-03-05
Abstract: Compounds of the general formula <FORM:0830866/IV (b)/1> (wherein the fragment -CH2-N(R1)(R2)(R3) in association with the anion A- represents a quaternized amino-methyl group) are prepared by (in either order) reducing the 3-oxo-group of a 2-methyl-3-oxo-tetrahydrofuran-(5)-carboxylic acid ester to a hydroxyl group and converting the esterified carboxyl group therein to a quaternized amino-methyl group while protecting the keto group (if present) by temporary ketalization, if desired.  Preferred methods for converting the esterified carboxyl group to a quaternized amino methyl group are by (a) reacting the ester group with a dialkyl amine to form the dialkyl amide group, reducing this to the dialkylamino-methyl group and treating this with a quaternizing agent, and (b) reducing the ester group into a carbinol group, halogenating this to form a halogeno-methyl group and treating this with a tertiary amine. The keto group may be protected by ketalization with methyl ortho-formate when the esterified carboxylic group is being converted to a quaternized aminomethyl group.  The products of p  the invention may be resolved into their stereoisomeric forms by conventional means, e.g. fractional crystallization.  2 - Methyl - 3 - oxo - tetrahydrofuran - (5) - carboxylic acid methyl ester (a dinitrophenyl hydrazone is also described) is prepared by the addition of ethyl lactate to ethyl fumarate (or maleate), separating the copper salt of the product which, decomposed with dilute sulphuric acid, gives 2-methyl-3-oxo-4,5-di-(ethoxy-carbonyl)-tetrahydrofurn; the last-named compound on decarboxylation gives 2-methyl-3-oxo - tetrahydrofurn - (5) - carboxylic acid which is esterified.  The dinitrophenylhydrazone of 2-methyl-3-oxo-5 - dimethylaminocarbonyl - tetrahydrofuran is also described.
Patent GB-226142-A (GB)
Title: Process for the purification or dehydration of cellullose esters and ethers used alone or in admixture with organic or inorganic substances
IPC: C08B3/22
Filed: 1924-03-19
Abstract: Cellulose esters and ethers, particularly nitrocellulose and acetylcellulose are treated with absolute alcohol for the purpose of removing water absorbed in the ester or ether, or for its purification, the alcohol extracting, particularly in the case of nitrocellulose, the lower esters.  The product that remains is more homogeneous, has an improved stability, is free from water, and is suitable for the manufacture of artificial silk, plates, films, smokeless powders and dynamites, and for such uses the product may be mixed with other organic or inorganic substances. Solutions of the purified products when applied to metal surfaces show no coloration. From the solution obtained in the preliminary extraction, the lower esters may be precipitated by water and these esters may be worked up into spinning solutions, varnishes, &c.  Absolute alcohol may also be used in the preparation of solutions of nitrocellulose or acetylcellulose to be used for spinning artificial silk.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) refers to the addition of absolute alcohol during the etherification of alcohols and the esterification of alcohol for the purpose of dissolving, and so removing from the sphere of action, the by-products such as ethyl sulphates and mono esters that are formed during the reaction.  By such removal, the speed of the reaction is increased, the yield improved, and it is possible to reduce the proportion of dehydrating-agent.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) refers to the purification of edible fats by extraction with absolute alcohol.  This subject-matter does not appear in the Specification as accepted.
Patent GB-800806-A (GB)
Title: Improvements in and relating to walking beam conveyors
IPC: F27D99/00
Filed: 1957-03-04
Abstract: 800,806. Walking-beam conveyers. SVENSKA METALLVERKENS UGUS AKTIEBOLAG. March 4, 1957 [March 19, 1956], No. 7100/57. Class 51 (2). In a furnace having a walking-beam conveyer with sealing baffles depending into troughs of liquid, means are provided for scraping scale from the trough in co-operation with the walking-beam. A furnace for heating steel billets has a conveyer, Fig. 3, comprising two fixed beam surfaces 5, 6 and a walking beam 7. Baffles 27, 28 depend from the fixed and walking beams respectively into water-filled sealing troughs 26. Scraper fins 31 on the sealing baffles 28 of the walking beam 7 move with beam to remove scale collecting in the trough. Sumps 29, 30, Fig. 2, at the charging and discharge ends of the furnace collect the scale scraped from the troughs. The spacing of the fins 31 is less than the length of stroke of the beam. A sloping baffle 33 at the discharge end of the conveyer forms a frame with the baffles 28 and a baffle 34 at the charging end. The walking beam is operated by two hydraulic pistons, one producing the up-and-down movement and the second, operating in a pivoted cylinder, producing the to-and-fro movement. The cylinders for both pistons are supplied from a single pump through two co-ordinated four-way valves to produce the required movement.
Patent GB-555862-A (GB)
Title: Improvements in the type bar operating mechanism of typewriters
IPC: B41J25/24
Filed: 1942-05-27
Abstract: 555,862. Typewriters. JARDINE, Ltd., J., and THYER, P. J. May 27, 1942, No. 7159. [Class 100 (iv)] In typewriters with type-bars A pivoted on a segment B which is raised or lowered to change the type case, the key levers F are connected to the typebar links D by sub-levers E which are maintained in substantially the same position relative to the levers F during the movement of the latter. In one form, Fig. I, each sub-lever E has a tail G engaging a bar or roller H moved with the segment B, the tail G being so shaped as to maintain the relative position of the sub-lever. The links D may have projections D<SP>1</SP> engaging the bail K whilst the key-levers F have extensions F<SP>2</SP> engaging the universal bar L of the ribbon feed. In a modification, Fig. 2, the sublevers E have extensions E<SP>1</SP> connected by links E<SP>2</SP> to a bar E3 which is carried at each end by a bellcrank lever E<SP>4</SP> pivoted at E<SP>5</SP> to the machine framework, the other arm of lever E<SP>4</SP> being connected to the segment B. In this form, the extensions E<SP>1</SP> vary in length to obtain the correct movement of different type-bars.
Patent GB-1082342-A (GB)
Title: Improvements in or relating to the surface aeration of liquids
Inventor: CLOUGH GEORGE FRANCIS GILBERT
IPC: B01F3/04
Filed: 1963-02-22
Abstract: A method of aerating an effluent or other liquid comprises the use of a rotatable surface aerator member in which the efficiency of aeration is dependent on its level relative to the surface of the liquid (as described, the aerator of Specification 919,467), the aerator being moved along its axis of rotation during operation by power means under the control of a hand lever (see Divisions B1-2 and F2).
Patent GB-1205378-A (GB)
Title: Method of cracking concrete
Inventor: HAMASAKI MASAFUMI
IPC: E04G23/08
Filed: 1969-02-10
Abstract: 1,205,378. Breaking concrete. ASAHI KASEI KOGYO K.K. 10 Feb., 1969, No. 7173/69. Heading B5E. [Also in Divisions C1 and F3] A method of cracking concrete comprises drilling a bore hole in concrete to be cracked, placing in the hole a combustible composition comprising a metallic reducing agent and an oxidizer, there being 10-60 parts by weight of metallic reducing agent per 90-40 parts by weight of oxidizer, and means for firing the composition, filling the remainder of the hole with sufficient sealing material to prevent blow out occurring when the composition is fired, and firing the combustible composition. The reducing agent may consist of zirconium, magnesium, silicon, aluminium, aluminiummagnesium alloy and boron, and the oxidizer may consist of potassium perchlorate, potassium chloride, potassium nitrate, barium nitrate, barium peroxide, lead tetroxide and lead menooxide. The composition is granulated using a binder consisting of 1-10 parts by weight of rubber, synthetic rubber or synthetic resin per 100 parts by weight of the sum of the reducing agent and oxidizer. In carrying out the method, a cartridge consisting of a plastic body 1, which is filled with the combustible composition 4 and is closed at one end 3 and fitted with an electric squib 5 at the other, is placed in the bore hole and the remainder of the hole is filled with a cement paste, mortar cement is concrete mixed with a quick-setting agent, or a quick-setting cement. The quick-setting cement or agent may comprise calcium chloride, water glass, sodium carbonate, hydrosilicofluorate plastic or resin concrete, an epoxy or alkali-amide plastics, or other inorganic high molecular weight materials. Sand 9 may be used for partly filling long holes. A plurality of cartridges may be used in rows of holes, the rows being fixed in sequence. The bore holes may be inclined when cracking concrete pillars.
Patent GB-115878-A (GB)
Title: Improvements relating to Clutches.
Inventor: LUCAS HARRY
IPC: F16D41/069
Filed: 1917-05-19
Abstract: 115,878. Lucas, H., and Turner, W. C. May 19, 1917. Clutches, ratchet.- Friction - ratchet clutches for use with engine turning-gear &c. have the pawls c weighted on one side so that, when the engine and driven part a overrun, the pawls are removed from action centrifugally. The engaging parts of the surfaces of the pawls are struck with the pivots as centres in order to obviate the effect of wear.
Patent GB-917909-A (GB)
Title: Improvements in and relating to heat recuperators
IPC: F23M20/00
Filed: 1961-02-28
Abstract: 917,909. Thermal recuperators. INDUSTRIE-COMPANIE KLUNEWEFERS KONSTRUKTIONSUND HANDELSGESELLSCHAFT. Feb. 28, 1961 [March 4, 1960], No. 7251/61. Class 64 (3). A steel tube recuperator has bent tubes, of elliptic or otherwise flattened cross-section, between two distribution headers, the tubes being bent in planes lying transversely to the direction of flow of flue gases which heat the fluid in the tubes. The fluid to be heated passes from header 1 via the steel tubes to header 2 and then to header 4. The tubes 13 are placed in cross-rows 14, 14a, 14b, &c., and are bent alternately towards different sides in planes lying perpendicular to the direction of flow 8 of the flue gases. The tubes are bent in an arched or S-shaped manner with the longer axis of the tube section extending in the direction of flow of the flue gases.
Patent GB-595467-A (GB)
Title: Improvements in and relating to small-ware looms
IPC: D03D35/00
Filed: 1945-03-23
Abstract: 595,467. Smallware looms. CAWTHORN, L. S. March 23, 1945, No. 7337. [Class 142 (ii)] A smallware loom batten having more than one row of shuttles, the shuttles in each row being supported and actuated from underneath is characterised in that the shuttles in all the rows are of the same construction so that a standardpattern shuttle can be used in all the rows. As shown, the shuttles 24 in the upper of two rows of shuttles are provided with teeth on their undersides and are actuated by pinion wheels 23 and a sliding rack 21 in the same way as the shuttles 13 in the lower row. The shuttles may be aligned, or staggered, vertically. Specifications 393,166 and 556,792 are referred to.
Patent GB-759764-A (GB)
Title: Improvements in and relating to the suspension of motor road vehicles
Inventor: MUELLER ALFRED
IPC: B60G11/36
Filed: 1953-03-17
Abstract: 759,764. Spring suspensions; preventing lateral canting; springs. LEYLAND MOTORS, Ltd. June 17, 1954 [March 17, 1953], No. 7363/53. Classes 108 (2) and 108 (3). In a rear axle suspension for a motor road vehicle in which the wheel is driven through a reduction gear within the axle casing 3, a leaf-spring 4 is attached at its middle to the top of the axle casing and at its ends to columns 6, 7 erected upon the chassis frame, and a coil spring 13 resting on the middle of the leaf-spring, supports a structural part of the chassis frame. As shown, the leaf-spring is pivoted to the axle casing which is of the form disclosed in Specification 759,761, forwardly of the central plane thereof, the columns 6, 7 supporting the ends of the spring being attached to an arched longitudinal frame member 8. The upper end of the coil spring 13 abuts against a channel member 12 which connects the arch of the member 8 with an outer girder secured to the member 8 by outriggers as disclosed in Specification 759,762, [Group XXXI]. A radius rod 14 for each wheel is secured to the end of a transverse torsion rod stabilizer. Specification 759,760, [Group XXXI], also is referred to.
Patent GB-168924-A (GB)
Title: Improvements in parachute apparatus for controlling the descent of mail bags, parcels and the like dropped from aircraft
IPC: B64D1/02
Filed: 1920-03-12
Abstract: 168,924. Holt, H. E. S. March 12, 1920. Hooks, automatic-release. .-In an apparatus for controlling the descent of articles from aircraft, the load is suspended from a casing by ropes v, v<1> attached to the outer ends of hooked levers u, u<1> pivoted at, u<2> to the casing. A trip lever u<5> on the inner hooked end of the lever u engages a loop on the parachute rope. When the load touches the ground, the pull on the ropes v, v<1> is relaxed and the parachute released from the casing.
Patent GB-581725-A (GB)
Title: Improvements in or relating to electromagnetic wave radiators
IPC: H01Q13/06
Filed: 1941-06-13
Abstract: 581,725. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., and WILLOUGHBY, E. O. June 13, 1941. No. 7494. [Class 40 (v)] An antenna arrangement for plane polarized waves comprises a wave guide, the open end or mouth of which is arranged obliquely to the axis of the guide at such an angle that the field distribution in space from the end of the guide simulates the field distribution of a parabolic cylindrical reflector. The guide may be of rectangular cross-section, or of circular crosssection, Figs. 7 and 8 (not shown), and may have two sides tapered, Figs. 5 and 6 (not shown).
Patent GB-471912-A (GB)
Title: Improvements in or relating to a process for the electrolysis of sodium sulphate
IPC: C01B17/74
Filed: 1936-03-12
Abstract: 471,912. Electrolytic production of caustic soda and sulphuric acid. March 12, 1936, No. 7515. Convention date, June 27, 1935. Drawings to Specification. [Class 41] In the electrolysis of sodium sulphate solutions with a mercury cathode, a diaphragm is employed of such low permeability that at 40‹ C. and a pressure of 35 cm. water gauge, it allows not more than 10 cc. and preferably less than 5 cc. of water per sq. dcm. to pass through it per minute. The mercury is disposed at the bottom of a nonconducting cell with the diaphragm above it, the diaphragm being slightly inclined to the horizontal to permit escape of small quantities of hydrogen; an anode of lead or a non-oxidizing lead alloy is located above the diaphragm. Electrolyte is withdrawn from the cathode chamber, replenishedwith sodium sulphate and restored to the cell. The amalgam formed is removed and decomposed for production of caustic soda. An anode liquor containing 28 per cent by weight of sulphuric acid may be obtained.. The diaphragm may consist of a number of interlocking sections forming a shallow V, the limbs of which are at an inclination of 1 in 25. The diaphragm material may consist of 53 per cent silica and 47 per cent alumina having a pore volume of 39 per cent and an average pore diameter of 4À3 Á.
Patent GB-1366953-A (GB)
Title: Prisms
IPC: H01H9/18
Filed: 1971-03-20
Abstract: 1366953 Indicators for switches JOSEPH LUCAS (INDUSTRIES) Ltd 25 Jan 1972 [20 March 1971] 7541/71 Heading H1N [Also in Division G2] An electrical switch comprises a casing 11, an operating member 14 carried by the casing for movement relative thereto between a pair of spaced positions corresponding to a pair of operative positions of the switch, a prism 15 mounted for movement with the operating member, a pair of "legends" associated with the operating member and indicating the operative state of the switch, the prism comprising a transparent body having first, second and third surfaces, the second surface 17 being adjacent the "legends", the third surface 18, in use, reflecting light from the second surface to the first surface 22a. The third surface 18 has two mutually inclined portions arranged so that, in use, when the operating member is in one of its two positions, an image of one of the "legends" is reflected by one of the mutually inclined portions to a predetermined area, e.g. the centre, of the first surface, and, when the operating member is in its other position, the other "legend" is reflected in the other mutually inclined portion to the same predetermined area of the first surface. The term "legend" includes any visible device, e.g. a word, symbol, or merely an area of colour. The first surface 22a, and the area around it, may be serrated, as shown, to uniformly illuminate this surface. The third surface may have a groove across both portions which forms a convex surface in the prism (Fig. 3, not shown), to the same end. The light source may be provided by an optical cable held in aperture 24, the other end of which is adjacent a light bulb. The actual switch may be formed by co-operation of a moving contact (not shown) carried by the operating member with printed circuit board 12 supported in the moulded synthetic resin casing 11.
Patent GB-1143701-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/66
Filed: 1966-02-21
Abstract: 1,143,701. Mowing machines. P. W. ZWEEGERS. 21 Feb., 1966 [18 June, 1965; 24 Nov., 1965], No. 7593/66. Addition to 1,119,648. Heading A1F. A mowing machine similar to that described in Specification 1,119,648 includes at least one pair of drums rotatable in opposite directions about substantially vertical axes, each drum having a flange at its lower end with one or more cutters adjacent thereto. Each drum is of generally circular section and is provided with at least one longitudinally extending flattened portion having a longitudinally extending crop engaging ledge projecting therefrom with the outer edge of the ledge not projecting substantially beyond the circle coincident with the cylindrical periphery of the drum. As illustrated each has two ledges 41, and additional strips 42 adjustably held by screws on the ledgers may be provided. The ledges may be made of plastics, rubber or hardboard, and may be rearwardly inclined with respect to the direction of rotation of the associated drum. The drums may be made of rubber or plastics.