baber/WOPTO huggingface dataset:
Patent GB-694329-A (GB)
Title: Improvements in or relating to stop motions of weaving looms
Inventor: PORTER IAN STEPHEN
IPC: D03D51/34
Filed: 1950-10-18
Abstract: 694,329. Loom stop-motions. WILSON & LONGBOTTOM, Ltd. Oct. 17, 1951 [Oct. 18, 1950], No. 25341/50. Class 142(i) An electrical stop-motion for a loom comprises a circuit in which contacts A<SP>1</SP>, A<SP>2</SP> are actuated by weft forks on opposite sides of the loom, a contact being broken by the action of its associated weft fork when a shuttle is in its appropriate shuttle box and the weft is unbroken. The contact is made at all other times. A cam operated switch C is included in the circuit, the timing being such that switch C is open except when one of the contacts A<SP>1</SP>, A<SP>2</SP> is normally open. In the event of failure of weft, and the shuttle being in a shuttle box, the appropriate contact A<SP>1</SP>, A<SP>2</SP> is closed and a circuit completed. A relay coil d is thus energized and its associated contacts D closed; this closes a circuit which energizes a relay coil E actuating the stop-motion, and lights a signal lamp F.
Patent GB-1530037-A (GB)
Title: Unmanned submersible vessel
IPC: F42B19/00
Filed: 1976-06-18
Abstract: 1530037 Sectional submarine vessels FORENDE FABRIKSVERKEN 18 June 1976 [19 June 1975] 25363/76 Heading B7A An unmanned submersible vessel, e.g. for laying mines or sonar surveillance devices, comprises a propulsion and steering section and one or more releasable sections arranged fore and aft with respect to each other, the or each releasable section being arranged to sink upon release from the vessel. In one embodiment the vessel has two sections 2, 3 with explosive filled compartments 27a, 27, and upper gas-filled compartments 28a, 28 which are mutually releasable and are located abaft a propulsion and steering section 1. The sections 1, 2, 3 are connected together by explosive bolts 47 which are exploded by signals from a control unit 26 connected to a rev-counter 23 of a drive motor 21 and to a control wire 32 stowed initially in a tail magazine 31 and connected to a firing position. The compartments 28, 28a are charged with carbon dioxide gas from a bottle 50 via ducts 63, 57 and bulkhead apertures 54a, 55a, 54, 55. Upon release of either section 2 or 3 the upper compartment 28a, 28 fills with water and the section sinks to the bottom to there acts as a mine, the gas dissolving in the sea water. In an alternative embodiment the propulsion and steering section is located at the stern of the vessel. Reference has been directed by the Comptroller to Specification 1,447,619.
Patent GB-190264-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M9/08
Filed: 1921-09-26
Abstract: 190,264. Burnett, J. B. Sept. 26, 1921. Spray carburettors.-Air enters at a, Fig. 1, through a removable gauze filter a<2> and the mixture passes to the engine at a<3>, the passage a', a' being controlled by a central transversely-arranged rotatable throttle valve b, which is cut away so as to leave wings b', Fig. 4, in one of which fuel orifices b<3> are formed which communicate with an axial bore b<2> in the throttle. A tube b<4>, fitting this axial bore extends to below the normal fuel level i and is coaxial with the float chamber c which is secured by a flange e<3> on a part e, screwed to a tubular part d which contains the fuel orifice d' and is itself screwed into a spigot portion a<6> of the body a. A box g secured by a cap nut g<4> has a fuel inlet g<3>, a filter g<1> and a sediment trap g<2>. The fuel level is maintained constant by a float c<2> actuating a valve c' through a transverse pin c<3>. The float chamber is open to the air inlet a<1> through a duct a<10>. The fuel orifice d' is controlled by a needle valve f loaded by a spring f<1> and provided with an arm f<3> riding over an inclined edge b<9> of a sleeve b<7> which fits over and moves with an extension b<6> of the throttle valve actuated by an arm b<8>. The arm f<3> is, after adjustment, held against rotation so that, upon movement of the throttle, the needle valve moves axially. Hot air is admitted by a pipe a<8> to the space a<7> between the tubes d, b<4>. In the closed position of the throttle valve, a passage a<5>, Fig. 4, in the body a allows air only to pass to the engine, the fuel being cut off. In a modification, the needle valve is replaced by a sleeve or thimble with inclined edge working over a groove in a reduced end of the tube d, the rod f being screwed into a spring-pressed block adapted to rotate with, and slide axially within the extension b<6> of the throttle and bearing against a screw on the arm f<3>. In a further modification, shown in Fig. 8, the passage a<1>, a<3> is vertical and the float chamber c cast with the body a at one side thereof. A sleeve f<4> on the rod f fits the tube d which has a fuel inlet d<2>. The sleeve f<4> has a slotted hole k and radial slots l and fits tightly over the tube b<4>, which is a sliding fit in the throttle valve. Control is effected by a valve in the hot air passage a<8>. The fuel level is shown at i. With the throttle set for slow running the hole k is barely submerged, but rotation of the throttle to increase the speed will bring the hole below the fuel level. In certain positions of the throttle valve, supplementary air ports in the upper portion thereof may be brought into action. The several orifices b<3> may be replaced by a slit and an ordinary barrel throttle may be used having a ring of ports round the choke bore.
Patent GB-1298018-A (GB)
Title: High voltage testing arrangement
Inventor: BACHMANN HERBERT
IPC: G01R15/06
Filed: 1970-05-27
Abstract: 1298018 Measuring voltages TRANSFORMATOREN-UND RÍNTGENWERK DRESDEN VEB 27 May 1970 25502/70 Heading G1U The output of a source 1, 10 providing a high D.C. voltage (1) with a superimposed A.C. voltage (10) is measured using a potential divider comprising a choke 11 connected in series with parallel-connected ohmic and capacitive voltage dividing branches 2, 4. The reactance of capacitive branch 4 is small relative to the impedance of choke 11 so that most of the A.C. voltage is dropped across the choke. This enables screening electrodes 8 for the branches 2 and 4 to be connected directly to respective smoothing capacitors 9 in the voltage multiplier 1 providing the D.C. component of the source voltage. The D.C. component may be measured by an ammeter in series with the choke 11, or by a voltmeter 13 connected across an R.C. network 12. The A.C. component may be determined by a peak voltage detector 14 connected to a tapping on the choke 11 or to a tapping on a further capacitive potential divider connected in parallel with the choke, Fig. 6 (not shown). The choke 11 may be shunted by an over-voltage by pass (17), (Fig. 6) and may comprise several series-connected coils each shunted by a capacitor. In a modification, Fig. 5 (not shown), for use when the transformer 10 for providing the A.C. voltage component is connected at the high potential end of voltage multiplier 1, the positions of choke 11 and dividers 2, 4 are interchanged.
Patent GB-1475951-A (GB)
Title: Polyethylene terephthalate monofilaments
IPC: D01F6/62
Filed: 1975-06-16
Abstract: 1475951 Polyethylene terephthalate monofils E I DU PONT DE NEMOURS & CO 16 June 1975 [17 June 1974] 25579/75 Heading B5B Monofils of denier at least 1000, composed of a polyester which is at least 95 mol per cent polyethylene terephthalate and which has an intrinsic viscosity of at least 0-6, have a straight tenacity of 6 to 10 grams per denier, a loop tenacity of 3 to 7 gpd, an average birefringence of at least 0À190 an average difference factor (#) (as herein defined) of at least 90 and, when # is greater than 200 an integrated average birefringence (as herein defined) of at least 0À186. They may be produced by melt-spinning, quenching by passage through an air-gap and a water bath and then drawing in two stages to a total draw ratio of at least 6. In the first stage the draw ratio is from 3À5 to 4, the temperature being at least 550 C. when the air gap is 16 inches or more and at least 750 C. when it is less than 16 inches. The second stage drawing temperature is at least 500 C.
Patent GB-1474221-A (GB)
Title: Process for manufacturing partially clad blocks or slabs
IPC: B22D23/04
Filed: 1974-06-10
Abstract: 1474221 Casting composite articles KLOCKNER-WERKE AG 10 June 1974 [30 June 1973] 25633/74 Heading B3F  A process for the manufacture of partially clad blocks or slabs comprises arranging cladding plates 2 in a casting mould 1 close to the interior of the mould wall and with a clearance between the edge faces 5 of each plate and adjacent parts of the interior wall of the mould, and subsequently pouring molten base material 3 into the mould. The cladding material may have corrosion-resistant and/or wear-resistant properties. During solidification and cooling, the base material contracts over the edge faces 5 to effect sealing to prevent the penetration of oxidising gases into the gaps which form between the base material and cladding plates and which would prevent bonding therebetween during subsequent rolling operations. In addition, the surfaces may be protected from oxidation by a protective coating. Thermally insulating layers 7, such as asbestos sheets, may be disposed between the cladding plates and the mould wall. The edges 5 of the plates may be normal to the plates or chamfered. Metal strips, which may be of the same material as the cladding plates or the base material, may be fitted to the plates and partially dissolve in the molten base material during casting to prevent a gap forming at the edges 5. The strips may have recesses or perforations (10, Fig. 4, not shown). The cladding plates may be provided on one, two or all four sides of the mould.
Patent GB-1472302-A (GB)
Title: Installation for the rearing of plants
IPC: A01G33/02
Filed: 1974-06-10
Abstract: 1472302 Treating plants O RUTHNER 10 June 1974 [6 May 1974] 25692/74 Heading A1E An installation for rearing plants comprises an elongate enclosure with longitudinal walls mounted on spaced apart identical frames, transverse walls at each end of the enclosure and, intermediate the ends, transverse walls which divide the enclosure into culture chambers, and a circulating system for carrying plants through the culture chambers. In the embodiment of Fig. 1, the transverse walls 4, enclosed by frames 5, divide an enclosure into three culture chambers 1, 2, 3 with interspaces 8. In each culture chamber, a track or chain 6, Fig. 4, carries plants on support rods 20, and is driven by rollers 7 or by rollers and sprockets. The plants may be cultivated either in cubes or plugs 17, or in slotted pipes filled with pressed material, Fig. 5 (not shown). Air can be supplied to the culture chambers, through vents 14, from a supply source 12 connected via pipes 13 to an interspace 8, whilst air is removed through vents 15 via pipes 16 connected to a treatment unit 11 by pipe 10. Other supply pipes for various gases, such as CO 2 , CN, C 2 H 4 , NH 3 , and also supply pipes for nutritious solutions, may be laid in the ground beneath or adjacent to the installation. The rods 20 may be transferred between culture chambers by a rotatable and retractable gripping arm 21, Fig. 2. In an alternative transfer device, Fig. 3 (not shown), the rods 20 are transferred between air locks below walls 4, using an intermediate conveyor belt. The lighting conditions on the plants may be controlled by positioning aluminium films on the culture chamber walls; and also by varying the separation between the rising and descending parts of track 6.
Patent GB-198280-A (GB)
Title: Improvements in or relating to charge moistening devices for internal-combustion engines
IPC: F02M1/00
Filed: 1922-09-25
Abstract: 198,280. Pickard, W. Sept. 25, 1922. Separators. - A steam separator comprises a casing a into which the steam is lead by a nozzle b situated immediately below a recess b formed in the bottom of a second chamber c or a partition, the deflected steam passing out through minute perforations e, the chamber c, and a pipe g. In a modification, layers of gauze are provided between the chamber c and the nozzle b, which are spaced apart.
Patent GB-973517-A (GB)
Title: Improvements relating to dry cells
IPC: H01M6/08
Filed: 1962-07-05
Abstract: 973,517. Batteries. COMPAGNIE INDUSTRIELLE DES PILES ELECTRIQUES, CIPEL. July 5, 1962 [July 6, 1961], No. 25851/62. Heading H1B. A dry cell 1 has a coating 2 of synthetic plastics material 2 the latter being provided with an electrically conductive porous material 6 (a frit impregnated with polyethylene) which is porous to gases but impermeable to liquids. The porous material must have a pore size of 30 to 200 microns. The projecting casing 2 is fixed under the frit. Instead of a frit a porous layer of metal (copper or bronze) may be used.
Patent GB-264564-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H19/24
Filed: 1925-10-16
Abstract: 264,564. Crabtree, J. A. Oct. 16, 1925. Switches, quick-action. -A rotary step-by-step turn switch with quickmake and quick-break action at each step has a turn knob a transmitting a torque in either direction to the contactmember b through the helical spring i, and the contact-member is retained, until the spring is adequately strained, by a radially-moving member d rotating with the contact-member and engaging one of a number of concentric detents c mounted in the base so as to be capable of some axial movement under the control of the springs g. The member d is formed with a projection h which, when the member is moved radially by the action of an eccentric e on the operating spindle engaging a slot f in the member, passes radially outwards into engagement with a cam formation k on the detent. Under the action of the strained spring the projection h rides upon the detent which is depressed, and the member d rotating upon the eccentric engages with the effective inner portion of the next detent.
Patent GB-1479206-A (GB)
Title: Developer units for electrostatographic copiers and lids for such developer units
IPC: G03G15/08
Filed: 1974-06-11
Abstract: 1479206 Hopper lids GESTETNER Ltd 10 June 1975 [11 June 1974] 25930/74 Heading B8S A developer unit for an electrostatographic copier comprises a hopper (not shown) for containing toner powder, the hopper being provided with the lid shown which comprises holes 9 in a part 2 thereof for fixing the lid to the hopper, the part 2 being hinged at 10 to a part 1 of the lid which is actually disposed over the hopper in the closed condition of the lid, the lid further comprising portions 3 and 4 disposed below the part 1 and an aperture 11 extends through the parts 1, 3 and 4 and is closed by a valve member 6 comprising a rubber diaphragm bonded to an aluminium shim (7), Fig. 1, not shown, the diaphragm being slitted at 8 to provide four flaps 13. In use, the lid part 1 is folded back from the top of the hopper so that the diaphragm 6 is uppermost and the neck of a toner container is inserted upwards into the aperture 11, after which the lid part 1 is folded back to its closed position so that the container is inverted, and then the container is pushed downwardly so that its neck pushes the flaps 13 open and the toner then empties into the hopper.
Patent GB-804448-A (GB)
Title: Polymerisation of vinyl halides
IPC: C08F263/04
Filed: 1956-08-24
Abstract: Polymers and copolymers of vinyl halides containing a halogen having an atomic number not exceeding 35, are made by polymerization in aqueous dispersion in the presence of (1) an interpolymer of ethylene and maleic anhydride of specific viscosity at least 1.1, determined in 1 per cent dimethylformamide solution at 25 DEG  C.; or (2) an interpolymer of ethylene and maleic acid obtainable by hydrolysis of an interpolymer under (1); or (3) a partial ester of an interpolymer under (1) or (2) having up to 15 mol. per cent of the carboxyl and/or anhydride groups esterified with a monohydric acyclic, carbocyclic or heterocyclic alcohol or a monohydric phenol containing up to 10 carbon atoms which is free from groups, other than hydroxyl groups, which will react with a carboxyl or carboxylic anhydride group and does not constitute more than 20 per cent by weight of the molecule of the partial ester, all of said interpolymers being free from salt groups.  The vinyl halide may be vinyl fluoride, chloride or bromide and copolymers may be made with vinyl acetate, propionate, butyrate or benzoate or methyl, ethyl, butyl or allyl acrylates or methacrylates or acrylamide, acrylanilide, acrylonitrile, vinylidene chloride, trichloroethylene or the methyl, ethyl, propyl, butyl, amyl, hexyl, heptyl, octyl, allyl or methallyl esters of maleic, citraconic, itaconic or fumaric acids.  The ethylenemaleic interpolymers may be made by heating maleic acid or anhydride in an aromatic solvent, e.g. benzene, with ethylene under pressure and in the presence of a catalyst.  The maleic interpolymer may be partially esterified after polymerization or partially esterified maleic acid or anhydride may be used in the polymerization or the esterification may take place simultaneously with the polymerization.  The interpolymers usually contain substantially equimolar proportions of ethylene and the maleic constituent.  The monohydric alcohol may be methanol, ethanol, isopropanol, n-propanol, methoxyethanol, n-butanol, n-hexanol, octanol, n-decanol, cyclopentanol, cyclohexanol, phenol, cresol, xylenol or tetrahydrofurfuryl alcohol. In the vinyl halide polymerization there may be present in addition to the maleic-ethylene interpolymers particle size reducing agents such as unsaturated aliphatic carboxylic acids having 10 to 20 carbon atoms or their halogen-substituted derivatives, hydroxyl-substituted aliphatic carboxylic acids having 10 to 20 carbon atoms or partial esters of polyhydric alcohols having 2 to 8 carbon atoms with aliphatic carboxylic acids having 10 to 20 carbon atoms, e.g. glyceryl mono-octadecanoate.  There may also be present during the polymerization plasticizers such as dialkyl phthalates in which the alkyl groups contain 2 to 10 carbon atoms, e.g. dibutyl phthalate, esters of glycols containing not more than 10 carbon atoms with fatty acids containing 2 to 9 carbon atoms or phosphoric acid esters of phenol, the cresols and the xylenols and there may be used as catalysts benzoyl, lauroyl, ditertiary butyl, oleyl or toluyl peroxides.
Patent GB-321495-A (GB)
Title: Improvements relating to reservoirs and like liquid containers
IPC: E04B1/68
Filed: 1928-09-10
Abstract: 321,495. Oden, E. R. Sept. 10, 1928. Reservoirs.-In a reservoir of the kind consisting of concrete or other slabs, the joints or crevices in or between the slabs are rendered watertight by a non-hardening filler 15 such as hot asphalt or asbestos paste adapted to expand when the blocks 16 contract. The joint is completed by a flexible covering 19. As shown, the jointing edges are shaped so as to form wedgeshaped joints, and are supported on a concrete slab 17. The bottom of the joint is filled with rammed oakum 18 saturated with a preservative and waterproofing material such as coal tar, and the remainder of the joint is filled with a combination of coal tar, paint, and long-fibre asbestos, forming a plastic non-hardening substance 18<a>. The covering 19 shown consists of three sheets of burlap, cotton fabric, felt, or other soft pliable material secured by a gummy substance such as asphalt or pitch. Cracks in slabs may be similarly proofed. They should be enlarged a little, filled with the substance 18a, and covered by one or more membranes 19.
Patent GB-810211-A (GB)
Title: Improvements in gas turbine installations, particularly for locomotive drives
IPC: B61C5/00
Filed: 1955-09-12
Abstract: 810,211. Gas turbine plant. HENSCHEL & SOHN G.m.b.H. Sept. 12, 1955 [Sept. 10, 1954], No. 26016/55. Class 110 (3). [Also in Group XII] A gas turbine plant comprising a turbine driving a compressor and a separate turbine supplying effective power having the turbines arranged in parallel with respect to the compressor and two exhaust gas heat exchangers has the two heat exchangers arranged above the turbines and behind one another in such manner that the two air inlet drums are disposed adjacent each other and the long axis of the heat exchanger tubes lie at right angles to the air drums and parallel to the turbine compressor set. A compressor 1 driven by a turbine 2 supplies air through a Y-shaped branch 4 to the inlet drums 5, 6 of two heat exchangers. The air from the drum 6 passes through the tubes 7 to an outlet drum 8 in which is incorporated a combustion chamber. The combustion gases from this chamber are fed to the turbine which discharges over the tubes 7 to atmosphere. The air from the drum 5 passes through the tubes 13 to the outlet drum 14 which also incorporates a combustion chamber. This combustion chamber feeds a useful power turbine 17 which exhausts over the tube 13 to atmosphere. The compressor inlet 3 and turbine exhaust 11 of the turbo-compressor set are arranged adjacent one another. The air supply from the compressor 1 to the drum 5 may be provided with means to regulate or cut off the air supply.
Patent GB-338615-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64D27/02
Filed: 1929-08-27
Abstract: 338,615. Chillingworth, R. Aug. 27, 1929. Controlling.-Means for controlling aircraft in flight comprise one or more auxiliary lifting surfaces or planes s mounted on the fuselage F or other part of an aircraft and angularly adjustable about a horizontal hinge i by means of a string c controlled by the pilot. The hinge i is carried by a support j which can swing freely about a vertical pivot b under the control of a fin or fins f. A spring k tends to tilt the plane s about the hinge i against the pull of the string c which is guided in the pivot b and attached at e to a bracket h fixed to plane s.
Patent GB-1097806-A (GB)
Title: Method and apparatus for crucible-free zone melting
IPC: C30B13/00
Filed: 1966-06-10
Abstract: In the floating zone-melting of a silicon rod, the supply and recrystallized rods are arranged at an angle to one another (acute, obtuse or right-angle).  Both rod holders are rotatable and axially displaceable.  The diameter of the recrystallized rod may be greater or smaller than that of the supply rod.  Heating may be by induction coil, electrically heated radiation body, electron gun, or electric arc.  A planar or conical induction coil may be placed adjacent to the outer surface of the "elbow" joining supply and recrystallized rods.  An auxiliary induction coil may be employed to assist support of the molten zone. Pre- and afterheating devices may also be employed.  A plurality of supply rods may be employed, one or more of which may be doped, e.g. with antimony.