baber/WOPTO huggingface dataset:
Patent GB-501361-A (GB)
Title: Improvements in or relating to repeater stations for electric signal transmission systems
IPC: H03F1/54
Filed: 1937-08-27
Abstract: 501,361. Repeating systems. STANDARD TELEPHONES & CABLES, Ltd. (Pulles, C. A. J.) Aug. 27, 1937, No. 23538. [Class 40 (iv)] [Also in Group XL] In a repeater, a spare amplifier Z becomes operative in place of the main amplifier Y should the plate current of the latter rise above a certain maximum value or fall below a certain minimum value. Current for the amplifiers. is obtained over the line and heating current is normally supplied to the spare amplifier to hold it in readiness for operation. The supply X is fed to the main amplifier Y through transformer T1, the plate current and grid tension being obtained through a rectifier 3 and choke V. The plate circuits include pairs of relays A1, A2 and B1, B2, of which A1, B1 are normally operative and fall back when the current is too low, while A2, B2 pull up when the current is too high In either case, a circuit is closed for relay D, current being obtained over transformer T3 and rectifier S, and this relay locks under the control of a thermal relay R, disconnects transformer T1 and connects up transformer T2 to supply plate current and grid tension to the spare amplifier Z, which is already fed with heating current through transformer T3. Relays C switch the line over to the spare amplifier. An alarm is given by the opening of wire M, a lamp O lights and a dummy load resistance 2 is imposed on the supply. The amplifiers are housed in casings 10, 11 which fit into the central casing 12 and connections are made through plugs and sockets, When a new amplifier is inserted in place of the amplifier Y, a key P is actuated to operate relay E, which connects the heating circuit of the new amplifier to transformer T2 and closes a circuit for thermal relay R. The latter pulls up after a time sufficient for the filaments to become heated, disconnecting D, E and thereby switching in the new main amplifier. After a current breakdown, the current is reapplied gradually so that E; which operates on a smaller current than D, pulls up first (A1, B1 being back) and therefore ensures that the main amplifier Y is switched in. The pair of relays A1, A2 and B1, B2 may be replaced by two-step relays'which are normally partially operative.
Patent GB-688178-A (GB)
Title: Improvements in or relating to organo-silicon compounds
IPC: C07F7/08
Filed: 1951-10-10
Abstract: Polyamides containing silicon are obtained by reacting trialkylsilyladipic acids of the general formula R3SiCH(CH2CH2COOH)(CH2COOH), where R is an alkyl radical, with diamines, e.g. hexamethylenediamine.ALSO:The invention comprises an organosilicon compound of the general formula R3SiCH(CH2CH2COOH)(CH2COOH), wherein R represents an alkyl radical. The R radical may be the methyl, ethyl, propyl or octadecyl radical. The organosilicon compounds may be prepared by oxidizing trialkylsilylcyclohexanols, preferably with nitric acid.  Thus trimethylsilyladipic acid is obtained from trimethylsilylcyclohexanol, ethyldimethylsilyladipic acid is obtained from ethyldimethylsilylcyclohexanol, triethylsilyladipic acid is obtained from triethylsilylcyclohexanol and octadecyldimethylsilyladipic acid is obtained from octadecyldimethylsilylcyclohexanol.  In the example trimethylsilyladipic acid is prepared from a mixture of the cis- and transisomers of p-trimethylsilylcyclohexanol. Specifications 685,540 and 688,177 are referred to.
Patent GB-943677-A (GB)
Title: Quick setting silicate cement
IPC: C04B28/34
Filed: 1962-06-19
Abstract: A quick setting cement comprises a dehydrated metal dihydrogen phosphate and a metal silicate having a metal oxide/silica ratio of at least one, where the metal is calcium, magnesium, barium, zinc, aluminium, iron, cadmium, or strontium, in admixture with water. Dehydration is preferably effected at 200-250 DEG C.  The dihydrogen phosphate and silicate preferably have a particle size of 5-20 microns.  The ratio of silicate to dihydrogen phosphate may be 1-5 to 1.  11-20 cc of water per 100 gm of dihydrogen phosphate plus silicate may be employed.  Calcium dihydrogen phosphate-zinc silicate and -aluminium silicate compositions are illustrated.
Patent GB-186511-A (GB)
Title: Improvements in and relating to gudgeon pins
IPC: F16J1/18
Filed: 1921-09-05
Abstract: 186,511. Fullington, J. H. Sept. 5, 1921. Connecting-rods.-In an internal-combustion or other engine, the gudgeon pin consists of inner and outer parts 20, 22, which are secured together by pins or other means 32 inserted through aligned holes in the two parts, the inner part having a series of holes to permit adjustment. The pins 32 serve also to position the connecting-rod end. The parts 20, 22 are inserted from opposite sides of the piston and are formed with flanges 26, 28 seated in recesses in the piston. The gudgeon pin may be secured in the piston bosses, or, as shown, the bosses may be provided with bushes 24, the connecting- rod end being clamped on to the gudgeon pin by a screw 38.
Patent GB-236498-A (GB)
Title: Improvements in safety devices for electric cubicle switchgear
IPC: H02B11/24
Filed: 1925-03-27
Abstract: 236,498. Crompton & Co., Ltd., and Jones, W. F. March 27, 1925. Sliding switch-carriage arrangements.-A safety screen device for protecting the fixed contacts in a cubicle when the cubicle truck is withdrawn comprises two apertured sheets D, E capable of lateral movement on guide rods K, G, each carrying a horn J engaged on their inner edges by pins M and on their outer edges by pins N mounted on the truck. When the truck is withdrawn the horns and consequently the sheets are brought together by the action of the pins N so that the apertures are out of register, as shown, and when the truck is pushed in the horns are separated and the apertures 0, P, brought into register so as to give access to the fixed contacts. In order to maintain the contacts normally covered by a spring W is arranged between the horns.
Patent GB-787688-A (GB)
Title: Process and apparatus for the evaporation of heterogeneous liquid mixtures
IPC: B01D1/00
Filed: 1955-08-17
Abstract: <PICT:0787688/III/1> In a process for the evaporation of heterogeneous liquid mixtures, the various liquid phases are drawn from a container individually or together and are passed in admixture through an evaporator.  Two phases 4 and 5 in the sump of a distillation column 2 are drawn off by pipes 6 and 8 and passed through a pump 11 to an evaporator 12, the mixture of liquids and vapours in the evaporator being returned by pipe 13 to the distillation column. In modifications, the two phases are mixed in the evaporator; the two phases are pumped separately, mixed in a nozzle mixer, and fed to the evaporator; the two phases are withdrawn by a single pipe at the level of the interface between the phases, and pumped to the evaporator; the phases are withdrawn by a series of pipes at different levels of the phases, fed to a single pipe and pumped to the evaporator, the sump has such small dimensions that separate layers are unable to form, and a single pipe conveys the mixture of liquids to a heater; the liquids from the sump are fed to an agitator, and the mixture of phases is pumped to the evaporator. In another modification, the evaporator is arranged inside the sump so that liquids enter the evaporator at the level of the interface. An arrangement is also described to control the levels of the phases in the sump.  In examples, acetone is separated from a mixture of acetone, water and toluene, and benzol is separated from a mixture of benzol, phenol, water and a naphthalene fraction.
Patent GB-1247364-A (GB)
Title: Production of components
Inventor: BEDNALL DAVID MAURICE
IPC: B21C23/03
Filed: 1968-05-18
Abstract: 1,247,364. Making wheel hubs. RALEIGH INDUSTRIES Ltd. 28 March, 1969 [18 May, 1968], No. 23751/68. Heading B3A. A method of making a component, e.g. a bicycle gear hub, includes casting a steel blank to a shape related to that of the finished component, and subsequently bringing the blank to its final shape by cold extrusion. The cast blank is subjected to annealing and lubrication prior to extrusion, which may be performed in a single step and the finished blank may be subsequently machined.
Patent GB-389738-A (GB)
Title: Improvements in or relating to electric accumulators
IPC: H01M10/08
Filed: 1932-08-25
Abstract: 389,738. Galvanic batteries. NEDERLANDSCHE ELECTROLYT MAATSCHAPPIJ (LIGHTNING MIJ) NAAMLOOZE VENNOOTSCHAP, Utrecht, Holland. Aug. 25, 1932, No. 23840. Convention date, July 23. [Class 53.] An electrolyte or forming solution for the plates of accumulators contains one or more of the alkali metals, one or more of the divalent metals magnesium, beryllium, zinc or cadmium, also aluminium and an organic substance. Glycerine and a dyestuff such as cochineal or an azo-dye or Turkey red and an organic nitro-compound such as nitrobenzene or an aniline sulphonic acid may also be added. In an example the solution contains magnesium sulphate and carbonate, sodium sulphate, alum, potassium sodium bitartrate, glycerine, cochineal and nitrobenzene. Zinc sulphate may be used instead of magnesium sulphate and lithium sulphate may replace the sodium sulphate. With the addition of sulphuric acid the solution may be used as the electrolyte in the cell. The materials may also be incorporated in the active material of the positive plates so that they become dissolved when the cell is filled with acid.
Patent GB-855559-A (GB)
Title: Production of butadiene and dichlorbutenes
Inventor: BELLRINGER FREDERICK JAMES
IPC: C07C1/30
Filed: 1958-07-25
Abstract: In the production of butadiene by pyrolysis of a monochlorbutene and/or a dichlorbutane followed by separating butadiene and hydrogen chloride, the unreacted monochlorbutene and/or dichlorbutane is separated from higher boiling materials and recycled to the pyrolysis.  The process may be employed in the preparation of dichlorbutenes by the process described in Specification 798,394 in which n-butene and butadiene possibly mixed with butane are chlorinated, monochlorbutenes and/or dichlorbutanes separated and pyrolysed and the butadiene separated and returned to the chlorination, dichlorbutenes being recovered from the chlorination product.  In one embodiment, the chlorination product, after removal of unreacted butadiene butane and butene and hydrogen chloride, is fractionated in a first still to separate monochlorbutenes and dichlorbutanes overhead and crude dichlorbutenes as bottoms.  The overhead is pyrolysed and fractionated in a second still to take butadiene and hydrogen chloride overhead, the former being returned to the chlorination. The bottoms are fractionated in a third still to obtain monochlorbutenes and dichlorbutanes overhead for recycle to the pyrolysis or the bottoms are recycled to the first still.  In another embodiment, the pyrolysis and chlorination products are mixed and distilled to take hydrocarbons overhead for recycle to the chlorination while the bottoms are separated into monochlorbutenes and dichlorbutanes overhead for pyrolysis and dichlorbutenes and higher boiling material as bottoms.
Patent GB-808424-A (GB)
Title: Improvements in or relating to guide channels for sliding doors
Inventor: ALDAM DONALD GEORGE
IPC: E06B3/46
Filed: 1955-08-19
Abstract: 808,424. Guide rails for sliding doors. HILL ALDAM & CO., Ltd., E. July 20, 1956 [Aug. 19, 1955], No. 23954/55. Class 104 (2). A guide channel for a sliding door comprises spaced, parallel, angleirons 1, 2 set in concrete 9 in which is a channel registering with the space between the angleirons and sloping to a sump with a removable filter. The angle irons are supported by anchoring members 5 set in the concrete. The channel is formed by placing an oiled and papered tapered former between the angle-irons and securing it to bearers 7, a block-like former is used to produce the pit for the sump. After applying the concrete 9 the bearers and former are removed, together .with spacing-plates for the angle-irons.
Patent GB-141609-A (GB)
Title: Improvements in furnace fronts
IPC: F23M7/00
Filed: 1919-09-30
Abstract: 141,609. Reid, J. Sept. 30, 1919. Furnace fronts.-The air valves 11, 12 controlling the air supply to the ash-pit in a forced draught furnace front seat against the vertical side walls of the air chamber 1 and the ash-pit flare 6 at points near the lower and upper ends respectively of these walls. They remain a permanent fixture in converting the front for liquidfuel burning. The ends 13, 14 of the valves are offset to meet the vertical walls.
Patent GB-820682-A (GB)
Title: Thermally-operated snap-action electric switch
IPC: H01H37/70
Filed: 1957-07-29
Abstract: 820,682. Thermal switches; switches held set and freed mechanically. LANDIS & GYR A.G. July 29, 1957 [July 30, 1956], No. 23983/57. Class 38 (5). A diaphragm 11, operated by a liquid temperature-sensing device 10, carries a rotatable threaded spindle 23 having a travelling nut 24 which supports a setting-lever 12 pivoted on two lugs 17, 18. A leaf-spring 14 connects the free end of lever 12 to a lever 13 pivoted on lugs 15, 16 and carrying an insulating member 27 with a contact 26 normally bridging contacts 28, as shown. When the diaphragm 11 is lifted the lever 13 moves the member 27 with a snapaction against back-stop 29 and opens the circuit between contacts 28. A spring-loaded crank 30 also moves downwards and locks the lever 13 against upward movement when the temperature (and diaphragm 11) falls. The operating temperature is set by adjustment of the nut 24 by rotation of the spindle 23 from outside the case in a manner not described. The switch is reset manually by depression of button 37 which causes a leaf-spring 36 to engage an arm 33 on crank 30, which is thus restored to the position shown. The switch may be manually opened by depression of a button 39 acting on the lever 13 via a leaf-spring 38.
Patent GB-444790-A (GB)
Title: Improvements in or relating to motor-driven vehicles
IPC: B60K17/36
Filed: 1935-08-27
Abstract: 444,790. Motor vehicles. WAGGONFABRIK AKT. - GES., Uerdingen, and AHRENS, R., 39, Schutzenstrasse, Uerdingen, Germany. Aug. 27, 1935, No. 23996. [Classes 79 (ii) and 79 (iii)] [Sec also Group XXXII] In electric and other motor vehicles, whether running on rails or roads, of the kind in which each wheel is independently driven and is carried by a swinging arm disposed parallel to the direction of travel, each motor is rigidly connected with its swinging arm and the motor shaft is coaxial with the pivotal axis of the arm. In the construction shown in Figs. 1 and 2, two electric motors 1, 2 are fixed to arms 4, 5 and each motor and arm unit is provided with pins 8, 9 mounted in bearings 10 on the frame or body. These bearings may be rubber-lined. The road wheels 6 are mounted on the free ends of the arms 4, 5, and are driven from the motor shafts 3 through bevel gearing 11, 12 and shafts 13 which are made from spring steel and yield under torsion so as to protect the motors from shocks. The shaft and gearing are enclosed in the arms 4, 5, which are controlled by helical or other springs 15. In the construction shown in Fig. 3, two wheels 17 at each side of the vehicle are mounted on independent arms 20, the two arms being controlled by a single spring 19. Each wheel is driven by its own motor 18 arranged as in Figs. 1 and 2. All four motors may be situated outside the wheels as shown, but, where space permits, two motors and their arm pivots may be between the wheels. For use on rails the road wheels are replaced by rail wheels or rims which may surround rubber tyres.
Patent GB-809800-A (GB)
Title: Improvements in tapes for building
IPC: C09J7/21
Filed: 1956-08-03
Abstract: 809,800. Water-resistant adhesive tapes. WINN & COALES Ltd., and COALES, F. B. July 22, 1957 [Aug. 3, 1956], No. 24024/56. Class 140. A water-resistant adhesive tape comprises a textile backing coated with a composition including a neutral greasy medium having alumimium stearate uniformly dispersed therein, the aluminium stearate being present in a proportion of 1 to 5 per cent by weight of the total coating composition The " neutral greasy medium " is defined as a greasy medium being neither acid or alkaline ; it may be petrolatum, lanoline or a dispersion of wax in oil but not wax alone. Such medium may form 40 to 75 per cent of the total weight of the composition. The backing may be woven, felted, or roved into a cord from cotton, jute, sisal, glass or synthetic fibre. Fillers such as talc, china clay, slate powder and fuller's earth may be included. The preferred aluminium stearate is one in which the aluminium and stearate group are not present in stoichiometric proportions. Colouring matters such as titanium dioxide may also be included. In an example petrolatum and pale oil (sp. gr. 0.892) is gelled by means of aluminium stearate, and petrolatum, titanium dioxide, talc and china clay added. The so-formed composition is applied to a textile backing by conventional means.
Patent GB-626819-A (GB)
Title: Improvements in footwear
IPC: A43B13/32
Filed: 1947-08-30
Abstract: A shoe has an upper of any suitable material made in a conventional manner and a sole formed of a synthetic plastic.  The upper has the portion to be attached to the sole pretreated with a binding agent and introduced into a mould containing the unformed sole material. The sole is moulded and welded to the upper by pressure and/or heat in a single operation and the mould is cooled before opening if necessary.  The plastic of the sole is of the synthetic resin type as distinct from natural or mineral substances, and may contain colouring agents and is formed from sheet, granular, or powder material.  The bonding agent is a suitable plastic, either the same as that used for the sole or compatible with it, and is preferably a liquid of thin paste type, e.g. a latex emulsion, dispersion or solution of polyvinyl chloride, polyisobutylene or polyvinyl acetate either alone, in combination or as co-polymers, suitably plasticized if necessary. To increase penetration, the upper may be roughened, cut, or if of leather, the grain may be removed or holes made so that plastic rivets form.  After applying the bonding substance, drying to remove a solvent and/or heating for polymerization may be necessary.
Patent GB-1192013-A (GB)
Title: Electric Heating
Inventor: EISLER PAUL
IPC: H05B3/26
Filed: 1966-05-31
Abstract: 1,192,013. Bundled packages. P. EISLER. 26 May, 1967 [31 May, 1966], No. 24069/66. Heading B8C. [Also in Division H5] To facilitate mechanical handling during transport a plurality of packages 11 are assembled together to form a large block 13, the packages being secured together by layers of a substance whose cohesive forces are sufficient to maintain the block intact under ambient conditions, but which are reduced to enable the packages 11 to be removed by electric resistance heating films 12 which are so positioned in the block 13 that they heat the layers whilst leaving the portions of the block adjacent the layers substantially intact. The films 12 have projecting terminals 14 by which they may be connected to a convenient supply. The packages 11 may be slabs of frozen food, e.g. fish, secured together by freezing. Chemicals which are normally conveyed as hot liquids, may be made into blocks of solid slabs which can subsequently be detached by intervening heating films. Packages of goods, e.g. food for pharmaceuticals, may be coated with a hot melt adhesive and secured together by heat and pressure to form a large block which may subsequently be " sliced up " by intervening heating films. Alternatively, the intervening heating films may have a hot melt adhesive by means of which packages are secured together in a block. The shape of the individual packages is limited only by the requirement that the co-operating faces of packages must be capable of development into a plane. Carcasses of meat may be interfitted with one another, spaced by heating film and frozen into a block of ice, gelatine, pitch, wax or asphalt. The large block may be transported over land by providing it with wheels or over water by wrapping it in a foamed waterproof envelope which will enable it to float.
Patent GB-415887-A (GB)
Title: Improvements in and relating to the moulding of packing strips
IPC: B31D3/04
Filed: 1933-08-30
Abstract: 415,887. Moulding packing strips. INDUSTRY ISSUE & FINANCE CO., Ltd., 329, High Holborn, London. Aug. 30, 1933, No. 24098. Convention date, Aug. 31, 1932. [Class 87 (ii).] Packing-material for fragile articles is formed with depressions corresponding to the general shape of the articles and with protuberances in each of the depressions to cushion the articles, the protuberances and depressions being produced simultaneously by passing the material while in mouldable condition between forming rolls. The material may consist of pasteboard &c. or may be produced by superposing webs supplied from rolls 4, 5, 6 the middle web being passed through a bath 7 containing an aqueous solution of water glass or sodium silicate. The middle web is preferably narrower than the outside webs and the three webs are passed between rolls 8, 8<1> and a heating chamber 60 and the composite strip so formed is guided by rollers 9, 10, to be operated on by rollers 11, 12 carrying the appropriate moulds. The upper roll is yieldingly pressed by a handwheel 13<a> and springs 17. The rollers 11 are hollow and may rotate about their own axes as well as about the shaft 46, which shaft is used to convey steam, hot air, gas, or electricity to the roller 11. The roller 12 is also heated by way of its shaft 48. The material after being shaped is removed from the roller 12 by a wheel 50 and fixed member 51 after which the material is cut into lengths on a bench 52 by knives 53 actuated by hand or power. The above subject-matter is also described in Specification 415,888 but the claims in the present case are directed only to the method of producing the packing strip and to the product of this method.
Patent GB-388802-A (GB)
Title: Improvements in or relating to concrete mixers
IPC: B28C5/42
Filed: 1931-08-27
Abstract: 388,802. Mixing-machines. JAEGER, G., 642, Wilson Avenue, and EGGERT, J., 304, South Central Avenue, both in Columbus, Ohio, U.S.A. Aug. 27, 1931, No. 24146. [Class 86.] The drums of concrete-mixers are provided with discharge doors which are slidably supported and are held resiliently against the rim of the discharge opening. The drum 17 may be mounted on a chassis, and the discharge door 22 is fitted with a collar 23 having a tubular extension 24 sliding on an axial tube 20 : the tube may form means for feeding water to the drum. The tube is threaded to engage a screwed rod 27 on which a collar 30 is loosely mounted, being engaged by a handwheel 29 splined to the shaft and under the influence of a spring 32. The collar 30 lies between the collar 23 on the lid and projections 31 thereon.