baber/WOPTO huggingface dataset:
Patent GB-950848-A (GB)
Title: A transformer or reactor having a winding composed of disc-shaped coils
IPC: H01F27/34
Filed: 1960-10-07
Abstract: 950,848. Transformers and inductors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Oct. 7, 1960 [Oct. 8, 1959], No. 34473/60. Heading H1T. A winding of disc coils, for transformers or reactors having screen members arranged at the end of the windings and axially along the end coils, is further screened by an additional member situated between the second and third coils from the end of the winding connected to the line and maintained at the same potential as this end. In one arrangement (Fig. 3) comprising double disc coils 1-24 and 25-50 &c., the additional screen member 53, electrically connected to the screen members 51, 52 and to the line is provided between the second and third discs 13-24, 25-38. In an alternative arrangement (Fig. 4) the turns 1-5, 6-10 form one screen as described in Specification 950,847. The effect of the screens is to reduce the steepness of the surge wave front in the winding.
Patent GB-1105533-A (GB)
Title: Improvements in flash evaporators
Inventor: BERT FREDERICK WALTER GIL
IPC: B01D3/06
Filed: 1965-04-05
Abstract: 1,105,533. Evaporators, multi-stage flash type; desalination of water. AMERICAN MACHINE & FOUNDRY CO. 29 March, 1966 [5 April, 1965], No. 34611/67. Divided out of 1,105,532. Heading B1B. Liquid, e.g. salt water, is distilled by passing it through a series of communicating flash chambers each of which discharges flashed vapour directly into a common condenser chamber. As shown, the flash chambers are assembled in two stacks on either side of a common condenser chamber 42 which is traversed by cooled tubes 44. Each chamber has a vapour-outlet 32 leading directly into the common condenser chamber 42. The flash chambers are disposed in six sections 40, and the vapour-outlets 32 discharge into the common condenser chamber 42 at three different levels. Liquid may be passed independently through each section.
Patent GB-988274-A (GB)
Title: Improvements in or relating to radar systems
Inventor: MARK JOHN RICHARD
IPC: H01Q3/26
Filed: 1962-09-11
Abstract: 988,274. Waveguide switching circuits. MARCONI CO. Ltd. July 24, 1963 [Sept. 11, 1962], No. 34671/62. Heading H1W. [Also in Divisions H3 and H4] In an elevation - finding pulse radar (see Divisions H3 and H4) the transmitter output is fed to a plurality of horn aerials via sets of power dividers, one type of which, Fig. 5, is a common H-plane junction, the powers fed to individual aerials being determined by the choice of dimensions x, y. In another type, Fig. 6, a circular waveguide is closed at one end and open end a encloses a succession of gas discharge tubes CDT; between ports b and c there are metal posts MP parallel to the axis of the guide leading to port b. During pulse transmission, power from port c is prevented from reaching port b and is transmitted toward port a causing tubes CDT to fire and the plane of polarization to be rotated through 45 degrees, the energy being led to an aerial. On reception tubes CDT are quiescent and received energy from port a is divided equally between ports b and c.
Patent GB-446083-A (GB)
Title: Improvements relating to the attachment of luggage receptacles to cycles
IPC: B62J9/00
Filed: 1935-12-14
Abstract: 446,083. Luggage attachments. BRUCKMANN, H., 65, Birkenstrasse, Dusseldorf, Germany. Dec. 14, 1935, No. 34779. Convention date, March 19. [Class 136 (i)] Means for attaching a luggage-receptacle to a cycle comprises one or more pockets in the receptacle to receive one or more attachment members secured to the cycle, the pockets and attachment members being readily separable for removal of the receptacle, and being adapted to hold the receptacle firmly in position on the cycle without straps or like fastenings. In one form, Fig. 1, receptacles a of the type adapted to be mounted on both sides of the wheel are each provided with a flat, narrow, vertical pocket b, open at the bottom, and formed by the attachment of a strip of leather &c. to the outer wall of the receptacle, and the attachment member consists of a strip, wire, &c. prong c which is secured to the wheel spindle and is adapted to slide into the pocket. The attachment member may have two or more prongs adapted to engage corresponding pockets. In the form shown in Fig. 5, prongs c on each side of the wheel are connected by a bridge member adapted to fit over and be secured to the usual carrier. The pockets and prongs may be arranged obliquely instead of vertically.
Patent GB-1176773-A (GB)
Title: Process for Purifying Yellow Phosphorus.
IPC: C01B25/047
Filed: 1968-07-22
Abstract: 1,176,773. Yellow phosphorus. KNAPSACK A.G. 22 July, 1968 [22 July, 1967], No. 34874/68. Heading C1A. Yellow phosphorus is treated with gaseous SO2Cl2 at temperatures between the melting point of phosphorus and 150‹ C., thereby reducing any arsenic and/or organic contaminants. The temperature is such that it ensures partial condensation of SO2Cl2 while it is passed through the phosphorus. The reaction mixture separates into two layers, the lower being phosphorus, whilst the reaction products accumulate mostly in the SO2Cl2 and can be removed continuously by distillation. Any traces of contaminants remaining in the phosphorus can be removed either by excess SO2Cl2 or distillation in a SO2Cl2 stream. Minor amounts of PCl3 may occur in the phosphorus after reaction; these can be removed by hydrolysis.
Patent GB-1192567-A (GB)
Title: Improvements in or relating to Condensers
Inventor: MACKAY IAIN ANDREW
IPC: F28F13/04
Filed: 1967-07-28
Abstract: 1,192,567. Condensation of vapours. BRITISH NON-FERROUS METALS RESEARCH ASSOCIATION. 19 June, 1968 [28 July, 1967], No. 34929/67. Heading B1B. [Also in Division F4] Vapours are condensed in the form of liquid droplets in a surface condenser by treating the metal surface which contacts the vapour with an organic compound which forms a complex with the metal, which complex is not wetted by the condensate. In order to condense steam using a condenser made of copper or a copper alloy, the condensation surface is treated with 2, 5-dimercaptothiadiazole dissolved in acetone or ethyl alcohol. Prior to the formation of the complex on the condensation surface, it is preferable 20 remove the oxide film thereon by treatment with a solution of hydrochloric acid in dimethyl formamide or dimethylsulphoxide.
Patent GB-890643-A (GB)
Title: Tar acid fractions
IPC: C10C1/00
Filed: 1957-03-14
Abstract: Cresol and xylenol fractions free from orthocresol, ortho-ethylphenol and ortho-propylphenol are produced by the careful fractionation of tar acids.  In Example 1, a commercial metacresol fraction, obtained from the tar acids produced in the low-temperature carbonization of coal, is fractionated in a column having an efficiency of at least 50 plates, in order to remove the ortho-cresol present.  The bottoms product is then fractionally distilled with water in order to remove ortho-ethylphenol.  The composition of the product is 48% meta-cresol, 35% paracresol and 17% 2, 4/2 ,5-dimethylphenol.  In Example 2, a crude tar acid fraction is fractionated in columns containing 45 to 60 trays, and a 220 DEG -232,5 DEG C. fraction is separated.  This fraction comprises xylenols, 2-methyl-5-ethylphenol and meta/para-ethylphenol, but is free from ortho-ethylphenol, ortho-cresol and orthopropylphenol.  After removal of all basic substances, the fraction is re-distilled, and then reacted with phosphorus oxychloride.  The mixture of phosphate esters is twice-distilled at an absolute pressure of 3 mm. Hg., and the final product is treated with steam in order to remove any odour.
Patent GB-1456765-A (GB)
Title: Abrasive compacts
IPC: B24D3/00
Filed: 1974-08-08
Abstract: 1456765 Bonded abrasive compacts DE BEERS INDUSTRIAL DIAMOND DIVISION Ltd 8 Aug 1974 [10 Aug 1973 19 Oct 1973 29 March 1974] 34954/74 Heading C4V An abrasive compact comprises, as abrasive particles, cubic boron nitride, diamond or mixtures of these, bonded by a matrix comprising a refractory substance and a solvent capable of dissolving the abrasive particles at least to a limited extent. The solvent substance may also be capable of reacting with the refractory substance to form a hard material. The refractory substance may be a boride, nitride or silicide and a particularly preferred material is α-silicon nitride. Also suitable are magnesium oxide, spinel and alumina either alone or mixed with the nitride, silicide or boride. Several mixtures are listed. Suitable solvent substances are low melting metals or alloys such as aluminium, lead, tin, magnesium and lithium and alloys containing one or more of these. The abrasive particles are preferably present in a mixture in an amount at least 70% by volume and a ratio of the solvent substance to the refractory substance may be from 1 : 2 to 2 : 1. The various ingredients are preferably in finely powdered form preferably of average particle size less than 40 microns. To produce the compact the mixture of the ingredients is subjected to conditions of temperature and pressure at which the abrasive particles crystallographically stable and the solvent substance acts as a solvent. Pressures will normally be in the range 40 to 65 kilobars and temperatures in the range 1200 to 1300 C.
Patent GB-745118-A (GB)
Title: Improvements in or relating to rigid shock-resistant vinyl halide polymer compositions
IPC: C08L9/00
Filed: 1953-12-16
Abstract: A thermoplastic composition comprises an intimate mixture of (1) a rigid vinyl halide polymer or a rigid polymer of a monomer mixture comprised predominantly of a vinyl halide and lesser amounts of other mono-olefinic monomers; (2) a hard, tough, resinous polymer of a mixture comprising 50 to 90 weight per cent of a styrene and 10 to 50 weight per cent of an acrylonitrile copolymerizable with the styrene monomer and (3) a rubbery interpolymer of a monomer mixture comprising 50 to 90 weight per cent of a 1,3-butadiene hydrocarbon, 5 to 30 weight per cent of an acrylonitrile and 5 to 30 weight per cent of at least one other monoolefinic monomer copolymerizable with the 1,3-butadiene hydrocarbon and an acrylonitrile, the composition containing essentially from 1 to 40 weight parts of (2) based on 100 weight parts of (1) and 1 to 25 weight parts of (3) based on 100 weight parts of (1) and (2).  The polymer (1) may be polyvinyl chloride, fluoride, or bromide or a copolymer of vinyl chloride, fluoride or bromide with vinylidene chloride, vinyl acetate, butyrate or benzoate, acrylic or ethacrylic acid, ethyl or octyl acrylate, methyl methacrylate, butyl ethacrylate, acrylamide, acrylonitrile, styrene, chlorostyrene, ethyl styrene, vinyl naphthalene, diethyl maleate, vinyl pyridine or isobutylene.  The polymer (2) may be a copolymer of styrene, methyl or ethyl styrene or monochloro- or dichlorostyrene and acrylonitrile, methacrylonitrile, ethacrylonitrile or chloroacrylonitrile.  The rubbery interpolymer (3) may be an interpolymer of 1,3-butadiene or isoprene, acrylonitrile or chloroacrylonitrile and one or more of styrene, dichlorostyrene, ethyl, butyl and hexyl acrylate, methyl, butyl and octyl methacrylate, vinyl methyl ketone, vinyl ethyl ether, vinyl pyridine and vinyl naphthalene.  The composition may be made by mixing the polymers as dry powders, in solution or as aqueous dispersions.  Specification 705,021 is referred to.
Patent GB-1125524-A (GB)
Title: A reciprocating piston engine
Inventor: CLARKE MICHAEL EDWARD
IPC: F16C29/02
Filed: 1966-08-04
Abstract: 1,125,524. Pistons. BRITISH OXYGEN CO. Ltd. 12 July, 1967 [4 Aug., 1966], No. 35045/66. Heading F2T. A cylinder, e.g. of a gas expansion engine, is provided with three or more equi-spaced grooves 14 fed with gas for centralizing the piston 7, the axial length of the grooves being such that they do not become uncovered by the piston where low pressure conditions exist. Compressed gas to be expanded passes through inlet ports 9 and passages 11, 12 in the piston to the expansion chamber 13 where it moves the piston to uncover exhaust ports 10 but not the grooves 14. Gas is fed to the grooves from either the ports 9 or an external source. The grooves may be inclined to the cylinder axis and formed by etching.
Patent GB-1272264-A (GB)
Title: 4-alkyl-nitomycin derivatives
IPC: C07D487/04
Filed: 1969-07-11
Abstract: 1,272,264. 4-Alkyl-mitomycin derivatives. KYOWA HAKKO KOGYO K.K. 11 July, 1969 [12 July, 1968; 16 July, 1968; 19 July, 1968; 24 July, 1968], No.. 35164/69. Heading C2A. Novel. 4-alkyl mitomycin derivatives having the Formula I: wherein R 1  is hydrogen, -CONH 2 , -COR 5  or -SO 2 R 5 , R 5  being an optionally substituted alkyl group with 1 to 9 carbon atoms or an aryl group; R 2  is C 1  to C 3  alkyl; and X is CH 3 O- or R 3 R 4 N-, wherein R 3 -and R 4  are the same or different and are hydrogen or the same as R 5  above, are prepared by alkylating the amino-ketone form (VI) of mitomycin B whichis. said to be in equilibrium with the conventional structure (V) of mitomycin B, thus: with an alkylating agent in the presence of alkali metal hydride to give 4 alkyl mitomycin B of Formula VII: which compound may then be subjected to one or more of (1) decarbamoylation at the 10 position, (2) acylation or sulphonation at the10- position and/or (3) reaction with NHR 3 R 4  (where R 3  and R 4  are as above) at the 7 position, to give. compounds of Formula- I wherein respectively (1) R 1  is H, (2) R 1  is COR 5  or SO 2 R 5 , and (3) X is R 3 R 4 NThe alkylation creaction may be effected by adding a C 1  to C 3  alkyl halide or dialkyl sulphate to a reaction-inert solvent solution of the mitomycin B and alkali metal (e.g. Na, K. or Li) hydride. The decarbamoylation is effected by subjecting the 4-alkyl mitomycin B to a partial hydrolysis with. an alkali metal alcoholate, preferably of a C 1 -C 4  primary, secondary or, tertiary alcohol, using a corresponding alcohol optionally together with benzene or toluene, as a reaction medium. The resulting 10-decarbamoyl-4-alkyl-mitomycin may be acylated or sulphonated at the 10-position with an appropriate acid anhydride or acyl halide, or a sulphonyl halide, in an aromatic hydrocarbon solvent in the presence of an acid-binding agent, e.g. pyridine, picoline or triethylamine. Re action of the 4-alkyl mitomycin derivatives with NHR 3 R 4 , i.e. ammonia or a primary or secondary amine, is suitably carried out in a polar solvent using at least an equimolar amount of the amine.
Patent GB-173423-A (GB)
Title: Improvements relating to means for controlling the exhaust of internal combustion engines
IPC: F02D15/00
Filed: 1920-12-16
Abstract: 173,423. Atsumi, B. Dec. 16, 1920. Regulating; valve-gear.-The time of opening of the exhaust valve is varied automatically according to the engine speed by means of a centrifugal governor which adjusts the pivot of an auxiliary rocker arm 12, Fig. 2, co-operating with the main exhaust rocker 13 and its cam 15. The governor comprises weights 6, Fig. 5, connected by links 5 to collars 3, 4 on an engine-driven shaft 2, the latter collar being movable along the shaft and connected by an arm 8 to a shaft 9, which is geared to another shaft 10, on which the rocker 12 is mounted eccentrically and the rocker 13 concentrically. The rocker 13 overlaps the rocker 12, and both engage the cam 15. Fig. 2 shows the position of the rockers for high speeds. As the speed decreases, the pivot of the rocker 12 is moved over towards the left, so that its engagement with the cam 15, and the consequent opening of the exhaust valve, occur later in the stroke. A pointer 20 on the shaft 9 moves over a scale 19 showing the angle during which the exhaust valve is open. The pointer is adjusted, to show the correct angle, by means of a spring 23 connected by an adjustable screw 22 to the arm 8.
Patent GB-927762-A (GB)
Title: Heat-transfer liquids
Inventor: COATES HAROLD
IPC: C09K5/00
Filed: 1960-10-14
Abstract: A heat transfer fluid partially or wholly comprising a mixture of diphenyl and diphenyl ether contains also one or more trialkyl or triaryl phosphines or phosphites in an amount from 0,05 to 10% by weight.  Suitable compounds include tri-phenyl phosphine, and trioctyl, trilauryl, triphenyl, and tris-(nonyl phenyl) phosphites. Specification 803,557 is referred to.
Patent GB-1075200-A (GB)
Title: A clamping device for temporarily securing a wall panel in an upright position
IPC: E04B2/88
Filed: 1965-08-20
Abstract: 1,075,200. Clamps. S. JAKOBSEN. Aug. 20, 1965 [Aug. 20, 1964], No. 35796/65. Heading E2B. The subject matter of this specification is similar to that of Specification 999,678, but differs in that the bush 6 is of non-circular cross-section and the bores in the end plates and the bush for the spindle 2 lie on a common axis coincident with the bush axis. In arrangements according to Figs. 4-7 (not shown), the cross-section of the bush and plate of the smaller end are triangular, square and of figure 8 configuration. the clamping jaw 3 being similarly shaped in each case to overlie the respective plate in the operative position of the jaw.
Patent GB-980939-A (GB)
Title: Improvements in or relating to electro-mechanical oscillators
IPC: G04C3/08
Filed: 1962-09-20
Abstract: 980,939. Electric clocks. TOKO RADIO COIL KENKYUSHO KABUSHIKI KAISHA. Sept. 20, 1962 [March 28,1962], No. 35884/62. Heading G3T. [Also in Divisions H2 and H3]  An electro-mechanical oscillator e.g. for use in a timepiece, is electromagnetically coupled to the input of an amplifier the output of which is fed back to the oscillator via an electrostatic coupling. In one example Fig. 3 the oscillator is a tuning fork one tine of which carries a magnetic member M which co-operates with a coil L connected to the base of a transistor T the collector circuit of which includes two electrodes E, Ea between which are located piezo-electric elements B bonded to the other tine of the tuning fork which tine carries a click 2 which drives an index wheel 1. In another example, Fig. 4, the oscillator comprises two elements Ac, Ad of electrostrictive material separated at their ends by spacers C and D and connected as before to a transistor amplifier.
Patent GB-1162812-A (GB)
Title: Improvements in or relating to Presses
Inventor: SHARMAN JOHN CHARLES
IPC: B30B1/26
Filed: 1965-08-21
Abstract: 1,162,812. Mechanical presses. PRECISION FORGINGS Ltd. 21 Nov., 1966 [21 Aug., 1965], No. 35967/65. Heading B5F. [Also in Division B3] Means for guiding a press ram 10 for straight line movement between two press frames 12, 13 comprises a pair of primary links 18 pivoted to the ram 10 at points spaced axially of the ram, a pair of links 19, 20 pivoted to one of the links 18 at 21, 23 and to the press frames 12, 13, and a second pair of links 24, 25 pivoted to the other link 18 and to the press frames. Extensions 26, 27 of the links 24, 25 are pivoted to the pistons 28 of counterbalance cylinders 29 themselves pivoted to the press frames at 30. The ram 10 is driven by an electric motor 37 through gearing 36 and a crank-shaft 35. The drive motor &c. are mounted on a sub-frame 38 pivoted at 39 and biased toward its operative position by an hydraulic KC ram. A second set of primary and secondary links may be provided to prevent fore and aft tilting. The press may be arranged horizontally instead of vertically, e.g. for use as an upsetting press.
Patent GB-1534732-A (GB)
Title: Multi-cylinder water cooled internal combustion engine
IPC: F02F1/14
Filed: 1976-09-02
Abstract: 1534732 Cooling cylinder heads H LIST 2 Sept 1976 [4 Sept 1975] 36287/76 Heading F1B To improving cooling of an multi-cylinder water cooled I.C. engine, the inlet coolant distribution channel 18, extends longitudinally of the integrally cast head and block 1 forming a common wall 19 with each exhaust passage 9, there being a bore 21, which may include a tubular insert 22, associated with each cylinder to direct coolant into the cylinder head coolant space 14 between the inlet and exhaust valve and, in the case of a fuel injection type engine, into the region of the fuel injector mounting bore 25. The channel 18 may be rectangular and the cylinder bores 15 are cooled by spaces 16 in communication with the spaces 14 for each cylinder. The inlet passages 8 are cooled only on their lower surfaces.
Patent GB-344782-A (GB)
Title: Improvements relating to stoves, ovens and other heating apparatus
IPC: A21B1/04
Filed: 1929-11-27
Abstract: 344,782. Air-heating stoves. PROCTOR, E., 83, St. Paul's Churchyard, London. Nov. 27, 1929, No. 36368. [Class 126.] Air supply for combustion.-A stove for supplying heating gases to baking ovens and other heating apparatus, more especially of the type in which the gases are recirculated, comprises a metal firebox a in which is a relatively small fire-basket e with ample air space between the two, the air supply for the stove being conducted round the firebox and then into it and round the fire-basket; the air and combustion products pass by a flue d to the tubes or other conduits of the circulating or other system. The arrangement allows a comparatively low temperature to be maintained in the firebox. In the construction shown, the firebox a is surrounded by a heat non-conducting casing i and air entering at k passes to the back of the firebox between baffles m, whence it returns to the front and, after passing through grids l, enters the box, in part through inlets g and in part through an inlet with a flap closure b controlled by a thermostat h. As shown in Fig. 5, the inlets may comprise tubes g<1> extending to any depth required, and the outside ends of which may be furnished with dampers. In some cases the tubes may enter the firebox from the bottom.
Patent GB-365405-A (GB)
Abstract: 365,405. Heating by circulation of fluids; heating water. SCHMIDT, K., 40, Bayreutherstrasse, Dresden, Germany. March 21, 1931, No. 8790. Convention date, March 22, 1930. [Classes 64 (i) and 64 (ii).] In a flow regulator for hot water circulating systems, and low pressure fluid circulating systems, the rising main b and the down main c are offset above the boiler a by bends f disposed in the valve housings of the regulator. The bends may be S-shaped as shown in Fig. 2. The threaded member m with which the valve spindle l engages may be within the conduit of. the valve housing as shown in Fig. 5 to enable the controlling hand-wheel e to be set nearer the housing.
Patent GB-1369328-A (GB)
Title: Measurement of local neutron density distribution in the interior of a nuclear reactor
IPC: G01T3/00
Filed: 1972-08-04
Abstract: 1369328 Monitoring reactors SIEMENS AG 4 Aug 1972 [5 Aug 1971] 36618/72 Heading G6C The neutron flux density in the interior of a nuclear reactor vessel is measured by means of a pulse in the form of a helical spring 1. The latter can be moved through a pipe extending into the vessel by pneumatic means. End-caps in the form of hemispheres 2a, 2b complete the probe, the interior 3 of which may contain a lubricant which can leak out from between the coils. By virtue of the nature of the spring, the probe can negotiate curves in the pipe.
Patent GB-365261-A (GB)
Title: Drain pipe cleaners
IPC: E03C1/302
Filed: 1930-12-08
Abstract: 365,261. Cleaning drain pipes. MILLER, J. C., 3336, Southport Avenue, Chicago, U.S.A. Dec. 8, 1930, No. 36920. [Class 99 (ii).] A device for cleaning drain pipes comprises a long flexible rod or coil of wire 10 of relatively small diameter having at one end an enlarged oval-shaped coiled head 11 the adjacent turns of which are normally substantially in contact. The outer end of the head is preferably provided with a hook 13, and a brush 12 may be fitted on the rod adjacent said head. The rod is preferably provided with an external guiding tube 17 and an extension 21 in the form of a twisted rod ; the latter passes through a square opening in the upper end of the tube 17 or in a handle 23 secured thereto so that when it is forced into or out of the said tube it will rotate and cause the rod to be rotated. For use with flushing bowls the lower end of the tube 17 is formed with a rubber-covered bend 18 to hook on to a portion 19 of the bowl, and the tube is secured in this position by a cam lever 37 mounted on the tube and adapted to be pressed against a plate 35 disposed upon the top of the bowl.