baber/WOPTO huggingface dataset:
Patent GB-991790-A (GB)
Title: On-load tap-changing equipment for an electrical transformer
Inventor: BONIWELL COLIN IVOR JENKS
IPC: H01F29/04
Filed: 1961-11-15
Abstract: 991,790. Transformers. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Nov. 15, 1962 [Nov. 15, 1961], No. 40807/61. Addition to 924,130. Heading H1T. An on load tap changing equipment in which the connection and disconnection of each tapping is effected by a vacuum switch or switches of a type employing solid contacts as in the parent Specification, has independently operable tap selectors X, Y connected to the non-tapped portion 21 of the two-part phase winding, one via one such vacuum switch A, and the other via two such switches B, C, switch B having a resistor 24 connected across it and being adapted to open momentarily when a tapping change is to be made. The inter-tap current is thus reduced by resistor 24 when the selectors X, Y contact adjacent tappings during tap-changing and is started by switch C when the change has been completed.
Patent GB-1311173-A (GB)
Title: Electron beam welding process and apparatus
IPC: B23K15/00
Filed: 1970-08-25
Abstract: 1311173 Welding by pressure; welding by fusion; weld trimming A D SMITH CORP 25 Aug 1970 [25 Aug 1969] 40892/70 Headings B3L and B3R Apparatus for welding abutting metal edges 3, 4, especially longitudinal seam edges of a pipe blank 1 emerging from a forming mill, comprises a resistance welding unit 5 for performing an initial weld and an electron beam welding unit 6 for refining and completing the weld.  Resistance welding unit.-This is supported  from a rail 14, and includes an HF power unit 15 connected via cables 16, surrounded by depending shield 17, to contact electrodes 11. The latter are arranged to slide relative to the blank 1 and to feed current to respective edges upstream of an apex point 8 (Fig. 2) where the edges are pressed into contact by pinch rolls 7. Spacing of the edges upstream of apex 8 is achieved by a spacer 12 mounted on a blank guide shoe 13. Plastic working of the heated edges 3, 4 causes material to be upset along the external and internal pipe surfaces along the seam (Fig. 3, not shown). Electron beam welding unit.-Located downstream of the resistance wealding unit 5, the electron beam welding unit 6 directs a beam 23 through an orifice 20 to perform the final weld while the seam is still hot and, preferably, plastic. Thus any undercutting occurs in the upset material, while any occluded impurities can escape from the weld. In the unit shown the pipe is welded in an ambient atmosphere environment, though for other applications medium a high vacua may be used. In a modification (Fig. 5, not shown), a filler wire feed mechanism (31) is provided for feeding filler wire to the electron beam weld area. The cold wire can include a deoxidizer agent. A shield (42) into which argon or helium can be supplied to provide an inert gas atmosphere in the weld area is also provided. Alternatively, air can be blown into the enclosure to blow scraps of foreign matter away from the weld. In another modification (Fig. 6, not shown), means are provided to overcome any lateral  deviations of the beam 23 from the centre of the weld seam. A sensor transducer (38) and servo control (39) provide this function. The latter control may control a lens to deflect the beam a desired amount but preferably the electron gun is itself moved laterally to reposition the beam. For this purpose the gun is laterally movable on tracks (40). The sensor may be a probe or infrared device. Hot weld flash removal is performed by a trimming device (Fig. 1) comprising tools 29, 30.
Patent GB-1349176-A (GB)
Title: Process for improving the wet fastness properties of dyeings on polyamide fibre material
IPC: D06P5/04
Filed: 1971-09-02
Abstract: 1349176 Treating polyamide fibre material CIBA-GEIGY AG 2 Sept 1971 [3 Sept 1970] 40988/71 Heading D1B The wet-fastness properties of dyeings on synthetic polyamide fibre materials are improved by applying either simultaneously with the dyestuff in an organic solvent or as a separate after-treatment of dyeing produced in an organic solvent or an aqueous liquor, a preparation which contains a water-soluble fixing agent with affinity for the fibre, an organic solvent or solvent mixture and up to 10% of water, and optionally an organo soluble dispersing agent, at temperatures of 20-120C. Suitable fixing agents are anionic polycondensation products of diaryl sulphones with formaldehyde. Suitable solvents are petrol hydrocarbons, benzene, halogenated benzenes, alicyclic compounds or halogenated aliphatic hydrocarbons. Surface active agents, particularly those obtained by the addition of ethylene oxide to long chain amines, alcohols, phenols and fatty acid esters may be used as dispersing agents.
Patent GB-1401818-A (GB)
Title: Catalyst assembly
IPC: H01M10/52
Filed: 1972-09-06
Abstract: 1401818 Noble metal catalysts; catalyst assemblies ACCUMULATORENWERK HOPPECKE CARL ZOELLNER & SOHN 6 Sept 1972 [18 March 1972] 41261/72 Headings BIE and BIF [Also in Division H1] A catalyst assembly for catalysing the reaction of hydrogen with oxygen to form water comprises a substantially cylindrical, porous, coherent carrier body 1 having a core 3 of a material of high thermal conductivity, and a platinum group metal therein and/or thereon. The assembly may be made by extruding a paste of a granular carrier (e.g. alumina) and quartz into a cylindrical body, calcining the shaped body, impregnating with a solution of a platinum group metal (e.g. Pd) compound, reducing with hydrogen, and inserting the core 3 (e.g. a copper rod) into a bore 2 in the body 1. A device for recombining gases in a lead-acid battery comprises a plastics housing 4 holding the assembly in flanges 8, 9, the aperture 6 being closed by porous ceramic plug 7 which has been rendered hydrophobic. Housing 4 has sloping portions leading down to a central opening which terminates in stub connection 5.
Patent GB-1360675-A (GB)
Title: Liquid cooled internal combustion engines
IPC: F01P5/14
Filed: 1971-09-03
Abstract: 1360675 Cooling IC engine valve cages; stopping engines MASCHINENFABRIK AUGSBURG-NURNBERG AG 3 Sept 1971 [8 Sept 1970] 41298/71 Headings F1B and F1K [Also in Division F2] The liquid-coolant inlet and outlet conduits 9 and 10 of an exhaust valve cage which is removable from the cylinder head of a liquidcooled engine without removing the head are provided with a valve 2 or respective valves for shutting off coolant flow therethrough. The fusto-conical or cylindrical rotatable valve 2 has inlet and outlet chambers 6 and 7 with apertures 8 and 11 movable into and out of register with the conduits 9 and 10. A by-pass conduit 19 may be provided between the chambers 6 and 7 or between the cylinder head coolant passages upstream of the valve 2 and a conduit downstream of the valve 3. The conduit 19 may have a high flow resistance relative to the conduits 9 and 10 if open when the valve 2 is either open or closed or a small flow resistance if open only when the valve is closed. A static pressure responsive switch 17 may be connected by a conduit 16 and a valve aperture 15 to the coolant supply when the valve 2 is closed. The switch 17 operates a visual or audible alarm when the engine is running and the valve is closed. A nozzle 18 in the conduit 16 provides for relief of pressure in the conduit. A dynamic pressure responsive switch 22 may be provided in the conduit 19 or a switch responsive to static pressure may be provided on a blind branch from the conduit. The switches 17 or 22 may act on the control of the engine fuel pumps through a time delay relay to prevent fuel delivery and stop the engine after engine starting with the valve 2 closed. The inlet and outlet conduits of a plurality of exhaust valve cages may have a single shut-off valve.
Patent GB-1151540-A (GB)
Title: Improvements in or relating to Automatic Weighing Arrangments
IPC: G01G13/00
Filed: 1966-09-16
Abstract: 1,151,540. Weighing apparatus, electrical. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept.16, 1966 [Sept.21, 1965], No.41425/66. Heading G1N. A programmed weighing apparatus comprises a container A Fig.1 for material to be weighed out and from which material must continuously flow at a controlled rate through an outlet controlled by a control member 2 and a slide 1, and a container B from which container A is refilled when the material in A has reduced to a predetermined minimum weight. The instantaneous weight of material in A is to be in accordance with a predetermined programme which operates a motor 5 to drive a wiper of a desired weight reference potentiometer SP, a voltage at which is compared, in a bridge circuit 4, with an actual weight representative voltage GA at a potentiometer PA, the wiper position of which is determined by a load responsive device 3 at the container A. With a switch S in position S 1  a comparator 6 produces a signal in accordance with the difference value, which signal is applied to the control member 2 to control the emptying rate of container A. The bridge circuit has an extra branch including a potentiometer SP o  set to a minimum weight value SP o  for container A, which is compared in a comparator 7 with the actual weight value G A . When G A  has decreased until G A = SP o , the comparator 7 operates a relay 8, and the potentiometer SP wiper will have been driven by motor 5 to its zero position. The relay 8 sets switch S to position S 2  whereat the pot voltage G A  is added to a voltage G B  representative of the load in container B and determined by the wiper position of a potentiometer PB controlled by a load responsive device 9. G A  + G B  is compared in comparator 6 with the voltage at the wiper of SP. The actual position of SP wiper is then adjusted (e.g. by a mechanical coupling) to a positional value which corresponds to G A  + G B . If weight value G B  is usually constant when changing over then it may be set up on SP by the motor 5. Now the outlet of container B is opened and material is emptied into A without interfering with the flow discharge from A. The total weight value remains G A  +G B , G A  increasing and G B  decreasing, the combined weight signal being continuously compared in comparator 6 with the voltage at pot SP. When B is empty, outlet 10 is closed by means not described, and switch S is returned to the normal S 1  position. The container B may then be filled from a store (not shown). Compensation for material adhering to container B after emptying may be provided by an additional potentiometer Fig. 2 (not shown).
Patent GB-1537210-A (GB)
Title: Lamina valve and lamina therefor
IPC: F16K15/16
Filed: 1977-10-05
Abstract: 1537210 Valves ENFO GRUNDLAGEN FORSCHUNGS AG 5 Oct 1977 [6 Oct 1976] 41462/77 Heading F2V A lamina 12 for use as a closure in a valve has resiliently yieldable projections 20 on one face. As shown the lamina is clamped between a cylinder 1 and a seating plate 8 of an air compressor, a gasket 6 having recesses (18), Fig. 2 (not shown) to receive the lamina in the region of the projections which, on compression of the gasket in assembly, resiliently yield between the cylinder and seating plate.
Patent GB-963785-A (GB)
Title: Process for the isomerization of hydrocarbons
IPC: C07C5/27
Filed: 1962-11-06
Abstract: In the isomerization of hydrocarbons in the presence of a liquid Friedel-Crafts catalyst, a portion of the hydrocarbons in the reaction zone is evaporated to remove at least part of the heat evolved by the reaction. The highest pressure in the reaction zone is preferably equal to the bubble point pressure of the hydrocarbon feed at the inlet temperature and in the range 1-22 atmospheres. If introduced at reaction temperature 5-35% wt. of the feed may be vaporized; if introduced at above reaction temperature, preferably not more than 17 DEG  C. above, up to 50% may be vaporized. Isomerization of C4-C6 paraffins is effected in the presence of aluminium halide at 20-120 DEG  C., preferably in the presence of hydrogen and hydrogen halide and antimony trichloride. The catalyst sludge is extracted with feed hydrocarbons to recover active components.
Patent GB-1448438-A (GB)
Title: Thermally operated electrical switches
IPC: H01H61/013
Filed: 1972-09-11
Abstract: 1448438 Thermal switches SANGAMO WESTON Ltd 10 Sept 1973 [11 Sept 1972] 42110/72 Heading H1N A switching arrangement comprises a thermal element which expands or contracts upon a change in its temperature to actuate a first switch, and then a second switch which causes a change in the temperature of the thermal element in a sense to cause a contraction or expansion of the thermal element but not by an amount sufficient to effect the first switch. As shown, thermal element 10 is heated by heater 14 to cause it to expand and first close main switch 18 and then open auxiliary contacts 24 to cut off the supply to heater 14 thereby allowing element 10 to cool and contract to close contacts 24, but not by an amount sufficient to close switch 18, thereby restoring the supply to heater 14 to cause it to heat up element 10 again, contacts 24 thereby cycling on and off whilst switch 18 is maintained closed. Element 10 comprises a capsule filled with wax which melts and in doing so expands when it is heated.
Patent GB-1513033-A (GB)
Title: Mixed complexes of methine dyes
IPC: C08J3/20
Filed: 1975-10-16
Abstract: 1513033 Metallized methine dyes CIBAGEIGY AG 16 Oct 1975 [17 Oct 1974] 42375/75 Heading C4P Mixed metal complexes of methin dyes are of formula:  (in which M, is Zn, Cd, Pb or Mn; M 2  is Co, Cu or Ni; R is CN, CH 3 , C 6 H 5 , -CO 2 CH 3  or benzoxazoyl; Z 1  is O, S or imino; X, and Y 1  each independently represents H, halogen, a 1-6 C alkoxy, alkoxycarbonyl, alkylsulphonyl or alkylcarbamoyl group, or a nitro, carbamoyl, CH, CF 3  or aryl-carbamoyl group; or X 1  and Y 1  together form a fused benzene ring; X is H; Y is halogen or -CO 2 CH 3 ; Z is NO 2  or R 1 Y 2 -; R, is H or 1-6 C alkyl or cycloalkyl, aralkyl or aryl; Y is O or S; m is 0-4; n is 0-4; p is 0-3; m+n+p=4; the atomic ratio of M 1 :M 2  is between 5:95 and 95:5. The complexes are formed by the metallization of the corresponding component monomethine dye of formula: In exemplified dyes R is CN, CH 3 , -CO 2 CH 3 , C 6 H 5  or benzoxazol-2-yl; X, and Y 1  are H, CH 3  or Cl; Z, is O, S or NH; Y is Cl, Br or I; Z is CH 3  orpchlorophenoxy. The complexes are used to colour high m.wt. materials (e.g. polyvinylchloride, acrylic resin, polyethylene terephthalate polypropylene or a mixture of alkyd and melamine/ HCHO resin.
Patent GB-1483367-A (GB)
Title: Colour toner for electrophotography
IPC: G03G9/087
Filed: 1974-09-30
Abstract: 1483367 Polyester electrophotographic toner CANON KK 30 Sept 1974 [2 Oct 1973 8 Oct 1973 22 Aug 1974] 42454/74 Heading C3R [Also in Division G2] A. toner for electrophotography comprises a saturated or unsaturated polyester resin (R) of softening point 80-150‹ C. and a pigment (P) being a quinacridone magenta. There may be 1-15% wt. (P) based on (R). (R) is derived from a diol and a dicarboxylic acid. Also present may be a carrier, e.g. iron powder or glass beads. The toner may be used in conjunction with other, similar, toners which, instead of (P), contain phthalocyanine cyan, or benzidine yellow pigments. Specifications 1,483,368 and 1,483,369 are referred to.
Patent GB-1481058-A (GB)
Title: Baler with double-acting plunger
IPC: A01F15/06
Filed: 1974-10-01
Abstract: 1481058 Hay balers H SCHMITT 1 Oct 1974 [25 Oct 1973] 42520/74 Heading B5F A baler for hay or straw has a pair of bale chambers 7 and a linearly guided plunger 6 which enters the chambers alternately. The plunger is guided by parallel rods (25), Fig. 3 (not shown), fixed thereto and engaged with rollers (26). The plunger reciprocation is produced by a crank 8 connected by a rod 11 to the plunger. The crank 8 is driven by an input shaft 9 on a tractor and the shaft 9 also drives a pick-up 1, augers 2 and packers 3 to supply material to the duct 4 between the chambers. Each chamber has bale measuring rollers 21, ball compressing bars with screw adjusters 24 and bale tying apparatus 15. The plunger 6 may be driven by a pair of cranks (8), (28), Figs. 4 and 5 (not shown), arranged one on each side of the baling chambers. In an alternative embodiment, Fig. 6, the plunger 31 reciprocation is produced by a crank arm 45 on a gear-box 47 which progresses around a pivot 35. In the above balers only one of the chambers may be used, for instance, when at the edge of a field.
Patent GB-985501-A (GB)
Title: Protective coating for metal and method of making and applying it
IPC: B05D7/14
Filed: 1962-11-12
Abstract: Free flowing powder compositions for coating metals comprise thermoplastic vinyl chloride polymer resin particles smaller than 40 mesh, plasticized with 5 to 40% by weight of the resin of a liquid plasticizer and stabilized with 1 to 10% by weight of the resin of a liquid stabilizer. Preferred resins are vinyl chloride-vinyl acetate copolymers.  Specified plasticizers are esters of benzoic, adipic, azelaic, phthalic, sebacic and phosphoric acids, expoxidized soya bean oil and epoxidized tall oil.  Specified stabilizers are epichlorhydrin-Bisphenol A condensates, dibutyl tin laurate and mixtures thereof. The powders may be prepared by mixing and heating to cause absorption of the plasticizer and stabilizer by the resin, and the product comminuted, preferably after the addition of a fine flour, e.g. of resin, titanium dioxide or calcium carbonate, to prevent cohesion of the particles.  The compositions may also comprise inert fillers and pigments, and may be used for coating metal articles by spraying the powder on to heated, preferably primed, metal articles.ALSO:Metal articles are coated by spraying the heated articles with free flowing powder compositions comprising thermoplastic vinyl chloride polymer resin particles smaller than 40 mesh, plasticized with 5-40% by weight of the resin of a liquid plasticizer and stabilized with 1-40% by weight of the resin of a liquid stabilizer.  The preferred resins are vinyl chloride-vinyl acetate copolymers.  Specified plasticizers are esters of benzoic, adipic, azaleic, phthalic, sebacic and phosphoric acids, epoxidized soya bean oil and epoxidized tall oil.  Specified stabilizers are epichlorhydrin-Bisphenol A condensates, dibutyl tin dilaurate and mixtures thereof.  The compositions may also comprise a fine flour, e.g. of resin, titanium dioxide or calcium carbonate, to prevent cohesion of the particles, inert fillers and pigments. The metal articles may be cleaned by blasting and primed with organic solvent solutions of synthetic resins, e.g. comprising polyvinyl chloride phenol-formaldehyde resin, tricresyl phosphate, maleic anhydride, pigment, toluene, xylene, methyl isobutyl ketone and isophorone.
Patent GB-1129813-A (GB)
Title: Improvements in snow ploughs
Inventor: HOWIE JAMES BRYSON
IPC: E01H5/06
Filed: 1964-10-20
Abstract: 1,129,813. Snow ploughs. J. B. HOWIE Ltd. 19 Jan., 1966 [20 Oct., 1964], No. 42686/ 64. Heading E1G. A snow plough blade of substantially rectangular elevation and curved forwardly and upwardly has the top and at least one side edge joined by an inclined edge to eliminate the normal right angled corner. A plate may be moveably mounted behind the corner to produce a right-angled corner or to prevent snow flowing back over the pushing vehicle.
Patent GB-1033134-A (GB)
Title: Improvements in or relating to the manufacture of table jellies or the like moulded tablets or blocks
Inventor: FINN FRANK JOHN
IPC: A23G3/02
Filed: 1962-11-14
Abstract: 1,033,134. Extracting table Jellies &c. from moulds. OAKDENE ENGINEERING CO. Ltd., and L. A. GLASS. Feb. 13, 1964 [Nov. 14, 1962; April 19, 1963], Nos. 43012/62 and 15436/63. Heading B5A. In a machine for extracting tablets or blocks from inverted moulds 10, disposed within carriers conveyed by endless continuously moving conveyer chains 17, the extraction is achieved by inserting hollow needles, displaced horizontally in unison with the moulds, into the moulded blocks, injecting compressed air through the needles between the blocks and the bases of the associated moulds and extracting the needles with the blocks held thereon by means of barbs. The extracted blocks are removed from the needles by a plurality of endless belts 48, driven in synchronism with the chains 17, which support the blocks as the needles are drawn downwardly therethrough and discharge the blocks on to a further conveyer or other collecting means. The needles 29, Fig. 4 (not shown), are resiliently mounted on a manifold 20 supplied with compressed air and displaceable vertically on levers 22 operable by a pneumatic cylinder 37 and horizontally on brackets 24, operable periodically by a rod and lever mechanism 44, 27 controlled by a cam 28. The mechanism is returned to the starting position by a pneumatic assembly 50. Compressed air passes through the needles 29 when they are depressed relative to the manifold 20 by engagement with the bases of the moulds 10 to bring ducts within each stem, Fig. 4, into communication with the manifold. The moulds 10, preferably of flexible plastic material, are supported within the carriers on bars 14, Fig. 3 (not shown), which extend across the carriers and are engaged by mould lugs 12, 13. The outer edges of a group of moulds may be held in grooves (not shown) in the respective carrier. To form table jellies having readily detachable portions the moulds are divided by partitions 16, Fig. 3, which are cut away at the corners between adjacent compartments.
Patent GB-1414554-A (GB)
Title: Methods for making a rubber-covered tyre valve
IPC: B29C70/68
Filed: 1973-09-13
Abstract: 1414554 Moulding tyre valve coverings SCOVIL MFG CO 13 Sept 1973 [13 Oct 1972] 43170/73 Heading B5A In a process of moulding a rubber covering 48, Fig. 3, about a tyre valve body 22, the body is located in a mould cavity 14, Fig. 1, with the cylindrical top end 44 in an annular rubber slug S. The mould is then closed so that the tip of a pin 36 carried by the upper mould half, enters the valve body and as the mould continues to close and conical part 38 of the pin 36 flares the body part 44 outwardly and the rubber is moulded to bond to the body and form a cover with a flat surfaced flange. Flash is accumulated in the groove 28.
Patent GB-1181409-A (GB)
Title: Smokers' Lighters
IPC: F23Q2/167
Filed: 1967-09-25
Abstract: 1,181,409. Smokers lighters. HEINRICH MALTNER G.m.b.H. 25 Sept., 1967 [28 Sept., 1966], No. 43611/67. Heading F4F. A smoker's lighter with a pressure member 8 connected by a pin 9 to a pivoted rocker 5 and by a pin 10 to the closing cap lever 7 has a tension spring retained at one end 12 by a mounting 13 whilst the other end 14 engages the rocker 5 by means of a roller 17 movable in a guideslot 16 so that as the cap is opened the roller moves towards the pivot 4 of the rocker. In a modification, Fig. 3, the end of the spring engages a recess 19 on the rocker.
Patent GB-1510187-A (GB)
Title: Laser
IPC: H01S3/03
Filed: 1975-10-24
Abstract: 1510187 Lasers MASSACHUSETTS INSTITUTE OF TECHNOLOGY 24 Oct 1975 [24 Oct 1974] 43867/75 Addition to 1443974 Heading H1C In a laser as described in the parent Specification in which a gas comprising a lasing constituent and a seed gas is pumped by the combination of a photoionizing light source and an electrical discharge, the seed gas comprises an amine having the structure:- where R1, R2 and R3 represent alkyl groups and in which R2 and R3 may together form a cycloalkyl group. The seed gas has an ionization potential below that of the lasing constituent, and its photoionization may involve either a single step or a multiple step process. The gas may be a CO2-N2-Ne mixture, with a seed gas consisting of tripropylamine, tripentylamine, tributylamine, triethylamine or trimethylamine for single step operation. For multiple step operation the seed gas may be triethylamine or trimethylamine. The use of tri-n-propyl amine, tributylamine and tripentylamine in a multiple step photoionization process as disclosed in the parent Specification is disclaimed.