baber/WOPTO huggingface dataset:
Patent GB-633486-A (GB)
Title: Manufacture of new dyestuffs of the anthraquinone series
IPC: C09B9/02
Filed: 1946-11-25
Abstract: Leuco-sulphuric esters of 1 : 11-di-anthraquinonylamides of dicarboxylic acids are made by treating the vat dye in presence of a metal, or treating a metal salt of a leuco-derivative of a vat dye, with a sulphating agent such as sulphur trioxide in presence of an amide derived from a secondary amine.  Amides specified are dimethylformamide, diethylformamide, dimethylacetamide, tetramethylurea, N : N - diethyl - p - toluenesulphonamide.  Acetone and acetonitrile are specified diluents.  In examples: (1) terephthal-4 : 41-dibenzoylamino - 1 : 11 - dianthraquinonylamide is reacted with zinc dust and sodium-b -naphthalene sulphonate in dimethylformamide, and then with the addition product of dimethylformamide and methyl chlorsulphonate or sulphur trioxide; (2) terephthal-5 : 51-dibenzoylamino - 1 : 11 - dianthraquinonylamide is reacted with zinc dust, tetraethylammonium iodide and dimethylformamide, and then with dimethylformamide and methyl chlorsulphonate; (3) terephthal-1 : 11-dianthraquinonylamide is reacted with N-formomorpholide, acetone, zinc, and methyltriethylammonium chloride and then with methyl chlorsulphonate and more N-formomorpholide; (4) oxal-5 : 51-dibenzoylamino - 1 : 11 - dianthraquinonylamide is reacted with zinc, sodium b -naphthalene sulphonate, methyltriethylammonium chloride, and dimethylformamide, and then with dimethylformamide and sulphur trioxide.  Specifications 274,156, [Class 2 (iii)], 476,255, 610,117, 633,481 and 633,513.
Patent GB-928580-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
IPC: F16F9/32
Filed: 1961-09-28
Abstract: 928,580. Hydraulic shock absorbers. GOETZEWERKE FRIEDRICH GOETZE A.G. Sept. 28, 1961 [Oct. 10, 1960], No. 34905/61. Class 108(3). An hydraulic shock absorber comprises a cylinder 1 provided with an elastic piston the central portion 5 of which, connected to a piston rod 2, is axially displaceable with respect to the outer peripheral surface 4 in such a way that the cross-sectional area of at least part of at least one passage, provided for the flow of hydraulic fluid from one side of the piston to the other, alters in dependence upon the displacement. As shown in Fig. 1 the elastic middle portion of the piston 3, made e.g. of rubber, is bonded to hard inner and outer rings 5, 4 the latter sliding within the cylinder 1 and the ring 5 being connected to the piston rod 2. A constant flow orifice 7 is provided in the piston rod 2. In a modification, Fig. 2, a resilient piston 8 is clamped, when the piston rod is fitted, between dished metal plates 12, 13 which, during displacements of the piston, alter the cross-sectional size of the passages 11 on the arrangement shown in Fig. 3 annular lips 14, 15 serve to close the openings 11a to a greater or lesser extent depending upon the deformation of the piston. In a further modification, Fig. 4 not shown, a stiffening ring extends around the outer edge of the lower half of the piston. The edge of the upper half being provided with a number of circumferentially-spaced, wedgeshaped, slots the deepest ends of which open into the upper face of the piston. Another piston described has a through opening the cross-section of which progressively decreases towards an upper lipped end. A stiff U-shaped ring, which accommodates four sealing rings, being recessed into the outer edge of the piston. The through passage may, alternatively, be of constant oval cross-sections, the U-shaped ring being interrupted at its middle part so that portions of the piston can project through and provide a boundary between upper and lower piston rings.
Patent GB-335440-A (GB)
Title: Improvements in guillotine machines for cutting paper or fabrics
IPC: B26D1/08
Filed: 1929-11-16
Abstract: 335,440. Furnival, F. S., Furnival, H., and Lee, H. Nov. 16, 1929. Combinations of clutches with positive stops.- In guillotine machines for paper or fabrics, the mechanism is positively stopped and the knife held in a raised position after each stroke. A lever G, pivotally mounted at g on a fixed part of the machine, is connected by a link g<1> to a connecting-rod e<2> which connects a stop lever e' to a clutch lever. When the stop lever e<1> is moved by a member d on the cam D to stop the machine, the lever G is rocked into the path of a stop H on the cam, rotation thus being prevented until the clutch lever is again moved into operative position. In modifications, the stop H may be carried by a gear wheel on the cam shaft, by the knife holder, or by a disc mounted on the cam shaft.
Patent GB-755627-A (GB)
Title: Improvements in or relating to mounting arrangements for electrical components connected to a terminal field
Inventor: CANNON JAMES ROWAN
IPC: H05K7/14
Filed: 1953-12-17
Abstract: 755,627. Mounting apparatus on racks. AUTOMATIC TELEPHONE & ELECTRIC CO. Sept. 14, 1954 [Dec. 17, 1953]. No. 35125/53. Class 40 (4). In an arrangement for mounting an assembly of electrical components connected to a terminal field such as an attenuator or equalizer for use in carrier telephone equipment, the terminal field and components are mounted on a card 25, which is housed in a frame 20, for mounting by clips 24 on a rack panel, and the frame is arranged to be withdrawn from the front of the panel to provide easy access to the terminal field.
Patent GB-317276-A (GB)
Title: New or improved apparatus for heating liquids
IPC: F24H1/18
Filed: 1928-11-29
Abstract: 317,276. Darby, E. Nov. 29, 1928. Heating water.-A heating unit for application to a tank 2 or a supply pipe comprises a boiler with inlet 5 and outlet 6, a dished base portion 8 under which a heating means 14 can be placed for example in a shield 15, and a flue 11 extending upward through the top and one or more subsidiary flues 13 connecting the underside of the box 8 with the central flue.
Patent GB-343974-A (GB)
Title: Improvements in driving mechanisms for rotary vessels or containers particularly applicable to drying-cylinders
IPC: F26B11/02
Filed: 1929-11-18
Abstract: 343,974. Driving mechanism for drying cylinders &c. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 18, 1929, No. 35229. Convention date, Nov. 22, 1928. [Class 34 (i).] Drying materials in long lengths.-Rotary heating or cooling vessels, particularly the steam-heated drying cylinders of paper-making machines, are each driven by a motor combined with a spurwheel gear to form a unit adapted to be secured either to the vessel or its support. The supply or discharge ducts or both for the substances to be treated in or passed through the vessel extend through the hub of a gear wheel forming a part of the spur gear or gearing therewith, and means are provided for permitting axial movement of the driving trunnion of the vessel. The supply duct 15 of a steam-heated drying cylinder 20 extends through the wheel 12 of the spur gear which is combined with the motor 10, the gear-case to which the motor is secured being mounted on a bracket attached to the cylinder support. In a modification, the cylinder is driven through helical gearing 41, 42, Fig. 3, connected by a coupling 43 permitting axial movement of the cylinder trunnion to the motor and gear unit 40. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a drive consisting of a motor and gear unit in which no provision is made for the passage of the supply or discharge ducts through the gear-wheel hub. This subject-matter does not appear in the Specification as accepted.
Patent GB-1476007-A (GB)
Title: Ledger stop
IPC: A01K91/06
Filed: 1975-11-04
Abstract: 1476007 Fishing ledger stop L J PROUTEN 4 Nov 1975 [27 Aug 1975] 35304/75 Heading A1A A short unbroken plastics tube with a tapered bore cooperates with a tapered plastics pin of longer length than the tube to clamp a fishing line therebetween to restrict the movement of a ledger weight along the line. The pin protrudes through the tube to a distance approximately half the length of the tube so that it can be pressed against an object to release the clamp.
Patent GB-1443367-A (GB)
Title: Friction clutches
IPC: F16D13/58
Filed: 1973-07-25
Abstract: 1443367 Friction clutches AUTOMOTIVE PRODUCTS Ltd 3 July 1974 [25 July 1973] 35413/73 Heading F2C In a diaphragm-spring friction clutch the diaphragm-spring 17 has an annular corrugation defining a groove 28 on one side and a rib 29 on the other, at the fulcrum for the spring, a reaction member in the form of clutch cover 12 having an annular surface 22 on one side of the corrugation, a further annular surface being on the opposite side of the corrugation and comprising a ring 32 as shown, which prevents a surface of convex cross-section which engages in the groove 28. The ring 32 is supported by tabs bent out from the radially inner edge of cover 12 and passing through apertures 27 of the spring 17, formed by enlarged radially outer ends of the slits between the spring fingers 25. Alternative embodiments can have the ring 32 omitted, the clutch cover having shaped surfaces (or a surface) to engage in the groove 28, or the ring 32 may be supported by rivets rather than the tabs shown, or the diaphragm spring may be on the outside of the cover 12 and engage the presser plate through projections of the plate which pass through apertures of the cover. The presser plate 14 shown rotates with the cover 12 through projections 18 engaged in apertures 19, but this arrangement may be replaced by flexible straps.
Patent GB-1365201-A (GB)
Title: 2 4 thiazoledimethanol carbamates and 2 4-thiazoledimethanol
IPC: C07D277/30
Filed: 1972-07-28
Abstract: 1365201 Thiazole derivatives BANYU PHARMACEUTICAL CO Ltd and H HIDAKA 28 July 1972 [30 July 1971 (3)] 35514/72 Heading C2C Novel thiazole derivatives of the formula wherein R is C 1-4  alkyl or phenyl are prepared by reacting isocyanates of the formula RNCO with 2,4-thiazoledimethanol, which is obtained by reducing diesters of 2,4-thiazoledicarboxylic acid or by hydrolysing 2,4-diacetoxymethylthiazole resulting from the reaction between 1-acetoxy-3-chloroacetone and 2-acetoxythioacetamide, obtained by reacting 2-acetoxyacetonitrile with hydrogen sulphide. Ethyl 2-hydroxymethyl-4-thiazolecarboxylate is obtained by reducing diethyl 2,4-thiazoledicarboxylate. Pharmaceutical compositions contain the above novel carbamates in admixture with pharma. ceutically acceptable carriers or diluents. The compositions are used in the treatment of diseases of the circulatory, cardiovascular and central nervous systems.
Patent GB-1069192-A (GB)
Title: Antibiotic and method of production thereof
Inventor: SAWADA JIRO
IPC: C12P1/04
Filed: 1964-08-31
Abstract: A new antibiotic polcillin effective against various yeasts and fungi is produced by culturing Bacillus subtilis TPR-2201 (ATCC 15549) recovering the polcillin-containing mixture and separating polcillin. The culture medium may be solid e.g. 100 grams of wheat bran per 200 grams of distilled water at 30 DEG  C. for 72 hours or liquid e.g. an aqueous medium containing 1% of glucose and 2% of peptone for 48-72 hours at 30 DEG  C.  To obtain polcillin from the culture broth, use can be made of cellulose ion-exchangers, cross-linked dextran or organic solvents e.g. alcohols or wet acetone, followed by precipitation using organic solvents e.g. ether, or adjusting the pH of its aqueous solution with alkali or acid.  Polcillin, a white amorphous powder is soluble in alcohols, wet acetone and pyridine; insoluble in ether, anhydrous acetone, ethyl acetate, butyl acetate, carbon tetrachloride, chloroform, benzene, dioxane and petroleum ether; it loses activity at about 120 DEG  C. and melts at 148 DEG C. with decomposition; it gives positive biuret, millon, xanthoprotein, diazo and Folin-phenol tests and negative Ehrlich, ferric chloride, Molisch, ninhydrin, Nylander, Benedict and Fehling tests; it comprises (as shown by two-dimensional paper chromatography) an acidic polypeptide of mol. wt. about 73,000 which contains aspartic acid, glutamic acid, serine proline, and tyrosine moieties with a predominance of aspartic acid; it has a U.V. spectrum in methanol with maximum absorption at 275- <FORM:1069192/C2/1> KBr characterized by absorption peaks at the following frequencies: 3350, 2940, 2860, 1660, 1530, 1440, 1230 and 1065 cm.-1 and Rf values of 0.84 and 0.85 by using aqueous solutions containing 50% acetone and 75% ethanol respectively.
Patent GB-1343410-A (GB)
Title: Preparation of l-alpha-hydrazino-beta-phenylpropionic acid  compounds
Filed: 1970-07-23
Abstract: 1343410 L-α-hydrazino-#-phenylpropionic acid compounds MERCK & CO Inc 17 Dec 1970 [25 March 1970] 35694/73 Divided out of 1343407 Heading C2C L-Compounds containing not more than 10% of the D-form and having the Formula I (in which each of R<SP>1</SP> and R<SP>2</SP> is H, OH, C 1-6  alkoxy, phenoxy or benzyloxy, each of R<SP>3</SP> and B<SP>4</SP> is H or C i - e  alkyl and R<SP>6</SP> is H, C 1-6 alkyl, a metal atom or, in the case of a multivalent metal, an equivalent of the metal) are prepared by reacting an L-compound containing not more than 10% of the D-form and having the Formula II (in which X‹ is halogen, arylsulphonyl or alkylsulphonyl) with hydrazine, an acyl hydrazine or an alkali metal salt of hydrazine, followed, when an acyl hydrazine is used, by hydrolysis. Compounds I are useful as decarboxylase inhibitors and antihistaminics.
Patent GB-1535402-A (GB)
Title: Heat-curable resin compositions for powder paints
IPC: C08G59/00
Filed: 1976-08-27
Abstract: 1535402 Powder paint compositions; depolymerized polyesters NIPPON ESTER CO Ltd 27 Aug 1976 [27 Aug 1975] 35700/76 Headings C3B and C3R A heat curable resin composition for use in powder paints has m.p. 40-150‹ C. It comprises: (I) a polyester having an average degree of polymerization of 3-50, softening point 40-150‹ C. and a carboxyl group content of 250-3500 gram equivalents per 10<SP>6</SP> g.; I is obtained by depolymerization of a higher M.W. polyester (intrinsic viscosity of 0À4-2À0 in 1 : 1 (by wt.) phenol : tetrachloroethane at 20‹ C.) at 180-300‹ C. by reaction with a compound containing 2-12 carboxyl groups; and (II) a compound containing 2-100 epoxy groups per molecule and which contains 300- 9600 gram equivalents of epoxy groups per 10<SP>6</SP> gram and which has a m.p. #150‹ C. I and II are present in amounts which satisfy the equation where O represents the epoxy content of II and C the carboxyl content of I. A specific example of I is obtained by first preparing a polyester of intrinsic viscosity 0À67 from (by wt.) 80 parts of dimethyl terephthalate, 20 parts of dimethyl isophthalate, 140 parts of ethylene glycol and 40 parts of neopentyl glycol. This polyester (100 parts) is then reacted with 10 parts of trimellitic acid to obtain a product with an average degree of polymerization of 10À3 and a carboxyl content of 1325 equivalents per 10<SP>6</SP> gram. II may be a diglycidyl ether of (hydrogenated) bisphenol A, a diglycidyl ester/ ether of p-hydroxybenzoic acid, triglycidyl isocyanurate, a diglycidyl hydantoin or a copolymer of a glycidyl-(meth)acrylate. The composition may additionally contain as catalyst a salt of a Group II metal, e.g. Mg, Ca, Zn, Ba and a C 2-20  aliphatic monocarboxylic acid, e.g. stearic acid.
Patent GB-944003-A (GB)
Title: Improvements in or relating to the manufacture of helical seam pipes
IPC: B21C37/12
Filed: 1962-09-19
Abstract: 944,003. Making helically seamed tubing; coiling. DRIAM S.A. Sept. 19, 1962 [Sept: 20, 1961], No. 35704/62. Headings B3A and B3E. A method of adjusting the welding gap width during the manufacture of a helical seam pipe made from a metal strip which is fed to a forming tool at an adjustable and variable angle, is shaped, and has its edges welded to form a pipe, said pipe being led off over a guide, the angle between the pipe axis and the tool axis being also variable while the pipe is being manufactured, comprises constantly measuring the pressure exerted by the helical seam pipe on the pipe guide in the feed plane of the unshaped strip and using the pressure variations as a measure for changing the angle formed between the pipe axis and the tool axis. Helicallyseamed pipe 1 passes from a coiling tool, against which strip to form the pipe is fed, over guide rolls 3, 4, 5, each angularly adjustable in accordance with the pitch angle of the helical seam. The roll 3 carries the weight of the pipe 1, the roll 5 prevents possible straying of the pipe and the roll 4 absorbs the pressure of the pipe and is carried by a lever 6 linked to a piston in a cylinder 8. Pressure in the cylinder 8 is read off on a manometer 9 and if pressure changes controls are actuated to alter the angle between the pipe and tool axes, this may be done automatically. The cylinder 8 is supplied with liquid by a pump 10 having a relief valve 11 and shut-off valve 12.
Patent GB-1117235-A (GB)
Title: Improvements in inking devices for printing apparatus
IPC: B41F31/08
Filed: 1964-09-01
Abstract: 1,117,235. Inking apparatus. MOLINS ORGANISATION Ltd., J. A. RAKOWICZ, and G. A. WARK. 31 Aug., 1965 [1 Sept., 1964], No. 35783/64. Heading B6C. In a web-fed letterpress printing machine in which a printing cylinder 3 carrying four letterpress plates 4 is inked by a forme roller 5 from a transfer drum 6, the ink is ejected from a syringe 9 into the nip between the drum and a coacting roller 17. The piston of the syringe is continuously advanced by screw gearing 13, 14, 15 driven by an electric motor 16. The ink is spread on the transfer drum 6 either by axial reciprocation of the drum or like reciprocation of coacting distributer rollers 7. In a further embodiment, the piston of the syringe is advanced intermittently through an adjustable clutch arrangement driven from the machine drive.
Patent GB-357982-A (GB)
Abstract: 357,982. Calculating -machines. SQUIRE, F. E., 52, Chancery Lane, London. -(Monroe Calculating Machine Co. ; 555, Mitchell Street, Orange, New Jersey, U.S.A.) June 30, 1930, No. 19810. [Class 106 (i).] Transfer mechanism.-In a machine employing echeloned transfer operating members effective in both directions of rotation up to and beyond home position of the actuating shaft, the machine is motor driven and automatically stopped and restored to normal position. Fig. 5 shows the machine with the clutch and stop gear constructed substantially as described in Specification 216,174, [Class 106 (i), Calculating &c.], with the further provision of lever 200 for positively holding the link 21 in normal position, as described in Specification 334,045, [Class 106 (i), Calculating &c.]. The transfer operating teeth 8, Fig. 4, extend about the shaft 154 in two opposed spirals and the trip member 25 and projection 27, Fig. 5, are so arranged that the machine is not stopped until later in the movement, thus enabling further transfers to take place beyond the home or median position of the actuating shaft 4. To lock the carriage down throughout the effective portion of the cycle a loose disc 36 is mounted on shaft 4 adjacent a fast disc 37. At the beginning of the cycle lost-motion of the disc occurs before it drives disc 36 whereupon recess 361 is removed from tooth 35 of lever 32 to prevent rise of the carriage 13 during the remainder of the cycle, including the additional transfer portion thereof. Specification 192,433, [Class 106 (i), Calculating &c.], also is referred to.
Patent GB-488111-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03J7/04
Filed: 1936-12-31
Abstract: 488,111. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, O. E. Dec. 31, 1936, No. 35885. [Class 40 (v)] In an automatic frequency control system of the kind in which the anode-cathode space of a control valve acts as a variable reactance in a resonant circuit, the quadrature voltage for application to the grids of the control valve 4 is obtained from a portion of a phasesplitting network of constant impedance, energized from the resonant circuit. The local oscillator 1 of a superheterodyne receiver has coupled to its tuned circuit 2, 3, by means of a coil 8 a valve 9 in whose anode circuit is connected the phase-splitting circuit, cornprising between points 14, 16, two parallel paths consisting of inductance 10 and resistance 11, and condenser 12 and resistance 13, the junction points 22, 23 being connected by screened transformer 5, 21 to the grid circuit of valve 4. Resistances 11, 13 are each equal to the square root of the quotient obtained by dividing the inductance by the capacity, and under these conditions valve 4 acts as a pure reactance whose sign depends upon the sense of coupling with the local oscillator, and whose magnitude is controlled by the bias of valves 9 and /or 4. By departing from the quadrature relation of voltage on the control valve grid a positive, or negative resistance which latter may be advantageous in the case of short wave frequency changers, may be thrown across the tuned circuit, the value of which may be controlled by the condenser 12. Interlinking of the condenser 12 with the tuning-condenser may be employed to control the oscillator amplitude over the tuning range. In modifications the valve 9 is not employed and the phase-splitting circuit, with a series condenser and resistance, is connected across the tuned circuit, the quadrature voltage being taken from points 22, 23, or across inductance 10 only by means of an auto-transformer.
Patent GB-666843-A (GB)
Title: Improvements in electrical coupling circuits
IPC: H03J5/24
Filed: 1946-12-04
Abstract: 666,843. impedance networks. RADIO CORPORATION OF AMERICA. Dec. 4, 1946 [Dec. 4, 1945], No. 35895/46. Class 40 (viii). [Also in Group XL (c)] A network comprising an inductance L1 and capacitance C1 in parallel, shunted by an inductance L2 and capacitance C2 in series, so that it is parallel resonant at spaced frequencies, is utilized, after modification, to overcome practical difficulties, as a tuned coupling circuit in the R.F. and mixer stages of a radio receiver designed for the reception of both A.M. and F.M. signals. The impedance-frequency characteristic, Fig. 2, shows parallel resonance at frequencies M2 and M3 and series resonance at M1. The latter, by proper selection of components, can be made to occur at the frequency of the unwanted image frequency, thus improving the receiver image ratio. In Fig. 3, condenser C2 of Fig. 1 is replaced by two separate condensers C2 and C3, suitable for the ranges of F.M. and A.M. respectively and switched by a switch S. The application of the above circuits to the R.F. and mixer stage of an A.M., F.M. radio receiver is described with reference to Fig. 4 (not shown). The Specification as open to inspection under Sect. 91 comprises also modified circuits in which the inductances are relocated to reduce A.M. breakthrough during F.M. reception and to prevent intermodulation. This subject-matter does not appear in the Specification as accepted.