baber/WOPTO huggingface dataset:
Patent GB-1124733-A (GB)
Title: Improvements in or relating to a machine tool with automatic tool change arrangements
Inventor: UHLIG CHRISTIAN
IPC: B23Q3/157
Filed: 1966-07-14
Abstract: 1,124,733. Tool-changing. WERKZEUGMASCHINENFABRIK SAALFELD VEB. 14 July, 1966, No. 31603/66. Heading B3B. A machine tool comprises a headstock 1 having two tool spindles 2, 3 spaced angularly by 45 to 135 degrees and two tool-magazines 5, 6 positioned so that the headstock can be moved to pick up a tool from either magazine. In operation, a used tool 7 in the spindle 3 is swung towards its appropriate magazine 5 and a wedge bar 22 is released to allow a spring 23 to operate tool-gripping arms 17.1 to clamp the tool in the magazine. The magazine 5 is then moved axially, together with the magazine 6, to. withdraw the tool 7 from the headstock spindle. The magazine 5 is indexed by a Geneva mechanism 10, 13, 16 and the magazines are then moved to place a new tool in the spindle 7. In a modification, the magazines 5, 6, Fig. 4, are displaced individually along guides 28. The spindles need not be co-planar.
Patent GB-233743-A (GB)
Title: A new or improved apparatus for charging liquids with carbon dioxide gas
IPC: B01F3/04
Filed: 1923-12-18
Abstract: 233,743. Sugden, G. F. Dec. 18, 1923. Combined aerating and bottling apparatus; valves, arrangement and disposition of.-Relates to apparatus of the type in which a frame for holding the bottle and an aerating chamber rotate about a fixed plug forming a gas inlet and snift valve, the liquid running from the bottle to the aerating chamber when the bottle is inverted, gas being admitted at the same time, and running back when the bottle is returned, surplus gas then escaping, and consists in the arrangement of parts described. The aerating chamber q is carried on a sleeve, i surrounding the plug a and carries through rods 2 and springs 7 a platform x for the bottle. The bottle can be pressed against a rubber washer u surrounding the orifice of a chamber q by a toggle lever 3 to which the rods 2 are pivoted. A passage g in the plug a is connected to a gas-bottle d through a reducing valve e, and when the bottle is inverted admits gas to the chamber q through a nozzle o. The chamber q is large enough to receive practically the whole contents of the bottle. When the bottle is returned to position below the, plug a, the nozzle o communicates with a vent h. A hinged or sliding guard 10 is provided.
Patent GB-712595-A (GB)
Title: New pyrimidines and processes for their production
Filed: 1952-12-15
Abstract: The invention comprises pyrimidine derivatives, having amoebicidal activity, of the general formula <FORM:0712595/IV (b)/1> and their salts, wherein Z represents a monovalent primary, secondary or tertiary amino radical, and X and X1 are the same or different and are hydrogen or chlorine or a methoxy, amino, nitro or cyano radical. Z is preferably a dialkyl amino radical in which the alkyl group contains from 1 to 5 carbon atoms, a piperidino, hexamethyleneimino or pyrrolidino radical. The compounds may be obtained (a) by reacting ammonia or a primary or secondary amine with a derivative of the formula <FORM:0712595/IV (b)/2> where Hal is halogen and R is hydrogen or an acyl radical; (b) by reacting ammonia with a derivative of the formula <FORM:0712595/IV (b)/3> (c) when Z represents -NH2, by reacting ammonia with the correspondingly 5-substituted 2,4,6-trihalogeno-pyrimidine or 2-amino- or 2-acetamido-4,6-dihalogenopyrimidine; or (d) by introducing one or more substituents at X and X1 of a 2,4,6-triamino-5-phenylpyrimidine. In methods (a) and (b), the reaction is effected above 150 DEG  C. in the presence of a solvent such as ethanol.  In the examples: (1) 2,4-diamino-5 - (41 - chlorophenyl) - 6 - di - n - butylamino - pyrimidine is prepared by heating di-n-butyl-amine with 2,4-diamino-5-(41-chlorophenyl)-6-chloropyrimidine in ethanol in an autoclave: by similar methods are prepared:-(2) the 6-dimethylamino, (3) the 6-diethylamino, (4) the 6-di-n-propylamino, (5) the 6-n-butylamino, (6) the 6-piperidino, (7) the 6-hexamethylene-imino, (8) the 6-pyrrolidino and (9) the 6-di-n-pentylamino derivatives and (10) 2,4-diamino-5-(31,41 - dichlorophenyl) - 6 - di - n - butylamino-pyrimidine: (11) 2,4,6-triamino-5-(41-chlorophenyl)-pyrimidine is prepared from ammonia and 2 - acetamido - 4,6 - dichloro - 5 - (41 - chlorophenyl)-pyrimidine: (12) 2,4,6-triamino-5-phenyl-pyrimidine is prepared from ammonia and 2,4-diamino-5-phenyl-6-chloropyrimidine and is converted into the 5-(41-nitrophenyl) derivative by the action of potassium nitrate in conc. sulphuric acid; by reduction of this nitro derivative with Adams platinum catalyst, 2,4,6 - triamino - 5 - (41-aminophenyl) - pyrimidine is formed and may be converted into the 5-(41-cyanophenyl) derivative by Sandmeyer's reaction: (13) the monohydrochloride of 2,4-diamino - 5 - phenyl - 6 - di - n - butylamino pyrimidine is prepared by adding to dry HCl in ether the product obtained by heating di-n-butylamine with 2,4-diamino-5-phenyl-6-chloropyrimidine; nitrating as in (12) yields the 5-(41-nitrophenyl) derivative: (14) the product of example (1) is obtained by heating ammonia with 2 - amino - 4 - chloro - 5 - (41 - chlorophenyl) - 6 - di - n - butylamino-pyrimidine, which itself is obtained by heating excess di-n-butylamine with 2-acetamido-4,6-dichloro-5-(41 - chlorophenyl) - pyrimidine. Specification 710,070 is referred to.
Patent GB-1503159-A (GB)
Title: Installation comprising a pre-calcination chamber for use in the manufacture of cement by a dry process
IPC: C04B7/43
Filed: 1975-07-29
Abstract: 1503159 Cement manufacturing plant; preheating and cooling charges FIVES-CAIL BABCOCK 29 July 1975 [1 Aug 1974 11 June 1975] 31752/75 Heading F4B In a plant for the manufacture of cement, comprising a preheater 14, a precalcination furnace 12, a kiln 10 and a cooler 16, the hot air from the cooler 16 is used to provide secondary air for the kiln and to heat combustion air for the precalcination chamber in an indirect heat exchanger. Hot air from the cooler may be passed through a dust extractor 26, and the hot circuits of heat exchangers 22, 24 before being returned by a fan 20 through the cold circuit of exchanger 22 to the precalcination chamber, Fig. 1. In another embodiment, the air from the cooler is returned to the cooler, and fresh air, heated in an exchanger by the hot air from the cooler, is fed to the precalciner. In a third arrangement, the hot air from the cooler passes through a dust extractor 26, the hot side of heat exchanger 22, and a preheating cyclone 36 with part of the raw meal before being driven by fan 20 through the hot side of exchanger 22 to the precalciner 12, Fig. 2. The hot air from the cooler may be cooled by passage through a waste heat boiler, or by a water spray after the hot circuit of a heat exchanger before reaching a fan which feeds it to the precalciner through the cold circuit of the heat exchanger. The cooling of the part of the hot air from the cooler not required in the kiln enables it to be passed through a fan so that the proportion flowing to the kiln and the calciner may be more readily controlled.
Patent GB-533884-A (GB)
Title: Improvements in or relating to the production of polyhydric alcohols by electrolytic reduction of reducible saccharides
IPC: C25B3/25
Filed: 1939-12-08
Abstract: 533,884. Electrolytic reduction of saccharides. ATLAS POWDER CO. Dec. 8, 1939, No. 31842. Convention date, Dec. 17, 1938. [Class 41] Polyhydric alcohols are produced by electrolytic reduction of saccharides contained in a catholyte the surface of which is protected from contact with oxygen during the reduction, e.g., by a gasimpervious float of cellular flexible plastic, cellular rubber, paraffin sheets or blocks, wood coated with paraffin or rubber, paraffin coated cloth on a wooden frame, hollow metal floats, liquids such as paraffin oil, immiscible &c. with the catholyte, or by a layer of nitrogen, hydrogen or other inert gas, e.g., formed by collecting the hydrogen liberated by the electrolysis beneath an inverted hollow metal shell. If an open storage reservoir is used for the catholyte similar protection against oxidation may be there provided. As illustrated 5 is the anolyte, 6 the catholyte, 3 the cathodes, 1 the anodes, 4 the diaphragms, and 2 floating paraffin blocks. In an example glucose was electrolytically reduced to sorbitol syrup at 68 F. using smooth amalgamated zinc cathodes and lead anodes, the catholyte including sodium sulphate and the anolyte sulphuric acid, the catholyte being agitated and maintained at an alkalinity of 20 gms. of sodium hydroxide by periodic additions of sulphuric acid.
Patent GB-136846-A (GB)
Title: Improved Method and Apparatus for Determining the Exact Location of a Source of Continuous Vibratory Impulses.
Inventor: HENRY JEWETT FURBER
IPC: G01S3/14
Filed: 1919-12-19
Abstract: 136,846. Furber, H. J. Sept. 19, 1918 [Convention date]. Addition to 9007/15. Void [Published under Sect. 91 of the Act]. Locating sounds.-The method described in the parent Specification of locating a source of sound by measuring the time interval between its receipt at a number of stations spaced known distances apart, is modified in a way stated to make it applicable to continuous sounds, such as those emitted by a submarine or machine-gun. Four (or more) receiving instruments are used, and the wave-length of the sound is estimated from a record made by the sound. Three (or more) series of hyperbolic curves are then constructed, the point of intersection X, Fig. 5, common to three (or more) curves, one from each series, gives the position of the sound source. A, B, C, D represent the positions of the sound receivers. Each series of hyperbolas is constructed by determining the difference between the distances of the source from two receivers, say at A, B, the first hyperbola of the series having this constant distance-difference from the points A, B, the remaining members of the series having this distancedifference plus once, twice, &c. the estimated wave-length. The apparatus for recording the sounds and measuring the frequency and timeintervals has a record strip 5, Fig. 7, moving over two rollers, geared together by a chain 4 and driven by a motor 3. A chronometer 13 records known time-intervals on the strip. The received sounds are recorded by pens 8 on levers 7 moved by solenoid-operated diaphragms, the operating currents being controlled by the corresponding sound receivers 12.
Patent GB-267056-A (GB)
Title: Improvements in or relating to electric glow-discharge lamps
IPC: H01J17/06
Filed: 1925-09-01
Abstract: 267,056. Television, Ltd., and Baird, J. L. Sept. 1, 1925. Vacuum tubes.-A glow-discharge lamp adapted to provide intermittently an illumination of high intensity for use in television apparatus, comprises electrodes which have a large heat-capacity so that the additional heating effect during periods of high intensity of illumination does not raise the temperature of the electrodes proportionately to the intensity of the illumination. Preferably the ratio of the mass of the electrodes to their area is large, and the discharge may be concentrated by covering part of the electrodes with insulating material. A large bulb may be used.
Patent GB-948048-A (GB)
Title: Voltage regulating system
IPC: H02J7/24
Filed: 1962-08-20
Abstract: 948,048. Automatic voltage control. MOTOROLA Inc. Aug. 20, 1962 [Oct. 20, 1961], No. 31943/62. Heading G3R. In a vehicular electrical system comprising a generator, a voltage regulator associated with the field winding of the generator and a load, a resistor carrying the field current is inserted between an output terminal of the generator and the voltage regulator so that the regulator responds to the output voltage varied as a function of field winding current. As shown, the rectified output voltage of an alternator 10 is controlled by a regulator 60 comprising a transistor 65 in series with the field winding 35 of the alternator, the transistor 65 being itself controlled by a circuit which senses output voltage variations and which includes a further transistor 70, a reference Zener diode 80, and a voltage divider 73, 74, 75 and 76. The regulator 60, which is connected over a resistor 64 to an output terminal 27 of the alternator 10, acts in known manner to average the current through the field winding 35, and thus provides a regulated output voltage. The entire current through a regulator, which includes the field current for the alternator, produces a voltage drop across resistor 64 such that the voltage at output terminal 27 is higher than that to which the regulator responds at lead 67. Thus this voltage drop causes the regulator to operate at a differentially higher level which is proportional to the load on the system, and this operation is sufficient to compensate for any inherent drop in the regulation loop. A temperature dependent resistor 82, selected to take account of the charging voltage requirements of a battery 40 at different temperatures, is connected across resistor 76.
Patent GB-1474795-A (GB)
Title: Circuit boards
IPC: H05K3/32
Filed: 1974-07-19
Abstract: 1474795 Printed circuits SIEMENS AG 19 July 1974 [19 Sept 1973] 32002/74 Heading H1R A printed circuit base material 1 coated with a metal layer 2, 3 e.g. copper on each of the two opposed sides thereof is apertured by punching or boring at required positions and the apertures are under-etched (Fig. 2) to leave annular overlaps of the metal layers. The etchant may be H 2 SO 4  for polyester and epoxy resins or NaOH solution for polyamide resins. Thereafter the overlaps are deformed by compression into mutual contact simultaneously with processing to produce the required conductor paths of the printed circuit, in which resistant coatings 4, 5 are deposited on coatings 2, 3 to leave the deformed regions exposed for electrolytic coating with copper 6 (Fig. 4) overlain by tin 7. Coatings 4, 5 are removed and the unwanted parts of copper coatings 2, 3 are etched off leaving the contact aperture and conductive paths protected by the tin layer (Fig. 5). In a modification (Figs. 6, 7 not shown) after deformation of the copper layers lacquer coatings are applied to these to expose the deformed portions and a copper layer is electrolytically applied. After removal of the lacquer and printing on of a negative conductor pattern a tin layer is electrolytically applied to the conductor paths and through contacts, and the unrequired portions of the copper coatings are etched off with the tin layer as protection. In a further modification (Fig. 8, not shown) after deformation of the copper coatings a positive conductor pattern is applied and undesired regions etched out, and components are soldered into position with connecting wires through the deformed portions, whereby the solder and wires interconnect the deformed coatings.
Patent GB-1248739-A (GB)
Title: Lightweight aggregate composition for thermal and sound insulation of roofs, floors and other surfaces
Inventor: GEDDES GEORGE CHARLES
IPC: E04B1/74
Filed: 1968-07-05
Abstract: 1,248,739. Bituminous composition. G. C. GEDDES, and W. D. CHISHOLM. 3 July, 1969 [5 July, 1968], No. 32101/68. Headings C3C and C3N. An aggregate composition primarily for thermal and sound insulation of roofs, floors and other surfaces consists of a dry lightweight aggregate which will compact into a mass of open texture and which in a first stage, is partly coated with a bituminous primary binder and subsequently, in a separate second stage, is partly coated with a resinous secondary binder which consists of a cold solution of resin or resins in a highly volatile solvent in which the primary binder is insoluble or not readily soluble, the resin in said secondary binder being thermoplastic and said secondary binder having flexible and highly adhesive properties. The dry aggregate may be pumice, expanded perlite, expanded slate, expanded shale, expanded clay, foamed slag or sintered pulverized fuel ash or a mixture of two or more of these materials. The size range of the aggregate is preferably in the range ¥ to # inch. The aggregate, previously heated, may be mixed with a penetration grade bitumen, which may be either molten or cutback in the first stage. Alternatively cold aggregate may be admixed with a cut-back penetration grade bitumen in the first stage. In the second stage the resin may be natural or synthetic and may be plasticized with vegetable oils, petroleum aromatic extracts, and natural or synthetic rubber. In an example the specific resinous material used in the second stage is based on a petroleum hydrocarbon resin and a petroleum extract.
Patent GB-1187107-A (GB)
Title: Transistor Circuit for Supplying a Constant Current.
IPC: G05F3/22
Filed: 1967-07-12
Abstract: 1,187,107. Automatic current control. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. July 12, 1967 [July 26, 1966], No.32103/67. Heading G3X. A circuit arrangement for maintaining constant the current through a variable load V comprises resistors R21, R22 connected in series with the load and a transistor T1 which has its base connected to the junction between resistor R21 and load V, its emitter connected to the junction between resistors R21, R22, and its collector connected to an auxiliary voltage source U21. The Specification shows that the load current is maintained constant if the values for R21, R22 and U21 are suitably chosen, and explains that the arrangement is of particular value in integrated circuits since the adverse effect of the unavoidable capacitance C between the collector of the transistor and earth in such circuits is nullified. Applications of the arrangement to a temperaturecompensating circuit and to a transistor switching circuit are described with reference to Figs.4a and 6 (not shown).
Patent GB-363055-A (GB)
Title: Improvements in chairs, settees and the like
IPC: A47C5/14
Filed: 1930-10-27
Abstract: 363,055. Seats. STEPHENS, N. E., 3253, 53rd Place, Boulevard Gardens, Woodside, New York, U.S.A. Oct. 27, 1930, No. 32200. [Class 52 (ii).] A chair, settee or the like comprises inner and outer sheets 1, 2, 5 of plywood, each formed to a predetermined contour and constituting an integral back and sides, disposed in spaced relation, strips 8 of cork or other suitable light-weight material being disposed between the exposed edge portions of the sheets, the space between the body portions thereof being free from braces or filling material. The seat proper 9 may be of plywood having lugs 10 extending through slots in the inner plywood sheet 5 and being secured by wedges 12 driven into holes 13 in the lugs 10.
Patent GB-1278174-A (GB)
Title: Catalyst for use in polymersising heterocyclic compounds
IPC: C08G75/08
Filed: 1970-07-02
Abstract: 1278174 Oxirane / thiirane polymerisation catalysts TOKUYAMA SODA KK 2 July 1970 [7 July 1970] 32239/70 Heading B1E [Also in Division C3] Catalysts for the polymerisation of oxiranes or thiiranes comprise organozinc compound with at least one C-Zn bond and a compound M(S-#C-Y) 2  wherein M is Ni or S Co, Y is -NR<SP>2</SP>R<SP>3</SP> or -OR<SP>2</SP> in which R<SP>2</SP> and R<SP>3</SP> each represent a monovalent C 1 _ 8  hydrocarbyl group. The catalysts may be dissolved or dispersed in an ether or hydrocarbon. Many Ni and Co N,N-dihydrocarbyl-dithiocarbamates and hydrocarbylxanthates, dialkylzines and alkyl zinc halides, alkoxides and hydrides which may be used are specified. In a typical example mixtures of Et 2 Zn+nickel N,N-dimethyl-dithiocarbamate or i-propylxanthate are used and compared with mixtures of Et 2 Zn with zinc, copper, bismuth, ferric and selenium N,N-dialkyldithiocarbamates, sodium i-propylxanthate and bis-2-acetoacetylvinyl-nickel.
Patent GB-784372-A (GB)
Title: Wide band radio-frequency transformer
IPC: H03H7/42
Filed: 1955-11-11
Abstract: 784,372. Transformers. STANDARD TELEPHONES & CABLES, Ltd. Nov. 11, 1955 [Nov. 11, 1954; Sept. 7, 1955; Oct. 19, 1955], No. 32285/55. Class 38 (2). A wide-band radio frequency transformer comprises a first balanced winding P consisting of two substantially symmetrical parts, a second balanced winding S also consisting of two symmetrical parts, the two balanced windings being spirally wound from metal strips or the like so as to be closely coupled, a balanced circuit being connected across one of the windings whilst an unbalanced circuit Z2 is connected across one part only of the other winding. The transformer windings are constructed of strips P, S having the requisite dimensions as determined by the transforma. tion ratio, the strips being provided with terminals A, B, M, D, E and being laid one above the other together with insulating members K. The assembly is then wound around a suitable magnetic core of high frequency material in a spiral manner as shown in Fig. 3. Since one section of each of the windings P, S is closer to the magnetic core than the other section, the differences in leakage inductances and selfcapacitances are compensated for by changing the thickness of the insulation K along the strip, by variation in the widths of the metal strips or by differences in the lengths of the two sections in each winding. When a greater transformation ratio is required one or more of the turns of the strip may be replaced by a plurality of serially-connected turns as shown in Fig. 9.
Patent GB-209094-A (GB)
Title: Improvements in basic dyes
IPC: D06P1/42
Filed: 1923-12-27
Abstract: Solutions of lakes of basic dyestuffs are prepared, for use in dyeing, by boiling together solutions of the dyestuff and an "active agent," for example tannic acid.  The solutions may be evaporated, the dried residue being soluble in organic acids such as formic, acetic or lactic acid.  Aliphatic acids such as oxalic, citric or tartaric acids or aromatic acids such as benzoic, phthalic or chlorophthalic acids may be employed for brightening the colours, the aromatic acids being preferably incorporated with the lake solution, and the aliphatic acids with the thickener in the case of printing pastes or with a diluting liquid in the case of dye solutions.ALSO:Materials such as cotton, linen, wool and silk are dyed and printed with basic dyestuffs without steaming by employing the dyestuff in the form of a solution of a lake with, for example, tannic acid.  The lake solution is prepared by boiling together solutions of the dyestuff and of tannic acid.  The solutions may be evaporated, the dried residue being soluble in organic acids such as formic acetate or lactic acid.  Aliphatic acids such as oxalic, citric or tartaric acids or aromatic acids such as benzoic, phthalic or chlorophthalic acids may be employed for brightening the colours, the aromatic acids being preferably incorporated with the lake solution, and the aliphatic acids with the thickener in the case of printing pastes or with a diluting liquid in the case of dye solutions.  Examples show the preparation of printing pastes and dye solutions consisting of a basic dyestuff-Rhodamine, Auramine O, Setocyanine and Methyl Violet-, lactic acid, glycerine, tannic acid, with formic or acetic acid and one of the above mentioned aromatic acids.  The pastes are prepared with, for example, starch thickening containing acetic acid, and the dye solutions by dilution with aqueous acetic, formic or lactic acid.  The preparations are applied and the fabric subsequently passed through a mordant bath, for example, tartar emetic.  The processes are adapted for continuous working.
Patent GB-1353201-A (GB)
Title: Method of longitudinally waterproofing electric cables
IPC: H01B13/32
Filed: 1971-07-09
Abstract: 1353201 Cables JEUMONT-SCHNEIDER 9 July 1971 [30 July 1970] 32380/71 Heading H1A During the manufacture of a cable having synthetic insulation and designed to prevent migration of moisture along its length, a waterproofing material containing aluminium silicate is introduced which expands when wet. The example given is a material containing aluminium silicate, industrial petrolatum and industrial oil.