baber/WOPTO huggingface dataset:
Patent GB-780871-A (GB)
Title: Improvements in or relating to mechanical guiding devices
Inventor: LOXHAM JOHN
IPC: B23Q1/36
Filed: 1955-01-18
Abstract: 780,871. Linkwork. SIGMA INSTRUMENT CO., Ltd. Jan. 6, 1956 [Jan. 18, 1955], No. 1545/55. Class 80 (3). In a device for guiding a plate 2 for movement relatively to a fixed plate 1, particularly for transmitting motion from a gauging anvil in a comparator, the plates are interconnected by upper and lower spring strip arrangements 11, 4, each of which comprises a central strip clamped between two longer strips so that the outer strips are curved as shown and maintain. the central strip in tension. The strip arrangements 4, 11 are bolted to the plates 1, 2, the upper bolts passing through brackets 14, 15. The bracket 15 carries a bolt 18 forming a stop limiting upward movement of the plate 2 under the action of a spring 22 extending between blocks 20, 21 located respectively on the plates 1, 2.
Patent GB-391266-A (GB)
Title: Method of and means for safeguarding or preserving the endless carriers used in the production of linoleum and such like
IPC: D06N7/00
Filed: 1932-01-19
Abstract: 391,266. Making linoleum. RED D A W A Y, F., Cheltenham Street, Pendleton, Lancashire. Jan. 19, 1932, No. 1549. Drawings to Specification. [Class 140.] To protect the rubber surface of the endless &c. bands used in the manufacture of linoleum, oilcloths, &c., for supporting the foundation fabric &c., while applying thereto the linoleum sections or mass &c., there is interposed as a shield between the supporting band and the foundation fabric an independent flexible sheet or band having a facing of celluloid or such like material as is impervious to the oils, gums, resins, pigments &c. contained in the linoleum &c. masses. The protecting sheet or band is preferably composed of a number of layers of thin fabric suitably united, and to this coatings or layers of celluloid are applied ; and the fabric layers may be treated with or secured together by rubber, or a thin layer of rubber may be interposed between them. The protecting band is supported on independent rollers, stretchers or supports.
Patent GB-783397-A (GB)
Title: Vacuum-tight flange joint between high-vacuum pipes
IPC: F16L23/22
Filed: 1956-01-17
Abstract: 783,397. Pipe joints. DUNKEL, Dr. M., [trading as LEYBOLD'S NACHFOLGER, E.]. Jan. 17, 1956 [Jan. 17, 1955], No. 1561/56. Class 99(1). In a vacuum-tight joint between pipes 10, 11 a distance ring 16 disposed between the opposed end faces of flanges 12, 13 of the pipes is provided with a projection 17, extending into the bore of the pipe 11, and a resilient sealing ring 19 located externally of the ring 16 has, in the unstressed state thereof, a height greater than that of the ring. When the flanges are drawn towards each other, e.g.-by bolts or a clamping ring 20, the ring 19 is compressed to a height h equal to that of the ring 16 but is free to expand in the radial direction. As shown in Fig. 1, the ring 16 has a groove 18 for reception of the ring 19 which is circular in cross-section. In a modification, the ring 16, Fig. 2, has a peripheral rib 21 of rectangular cross-section on to which the ring 19a is moulded.
Patent GB-566758-A (GB)
Title: Improvements in or relating to containers for liquid
IPC: B65D25/04
Filed: 1943-01-30
Abstract: 566,758. Liquid containers. FIREPROOF TANKS, Ltd., and DANIELS, L. S. Jan. 30, 1943, No. 1615. [Class 66] To prevent loss of the contents on the vessel being punctured, a liquid container such as a petrol can is filled or nearly filled with a number of substantially vertical tubes 2 of square or other section, closed at the lower ends but open at the top. The tubes may be moulded from synthetic resin or formed of impregnated fabric. The invention may be applied to containers of flexible material,
Patent GB-595327-A (GB)
Title: Improvements in and relating to wash-drying machines
IPC: D06F58/22
Filed: 1945-01-22
Abstract: 595,327. Wash-drying machines. ROTZ, A. VON. Jan. 22, 1945, No. 1707. Convention date, May 1, 1944. Addition to 595,305. [Class 34 (ii)] In the wash-drying machine described in the parent Specification the stationary filter is replaced by one in the form of an endless travelling band 5 of fine mesh metallic fabric which is mounted on driving rolls 3, also a tensioning roll 4, located below the drying drum 2. Associated with the band 5 is a flock extractor 7 to which suction is applied by a fan 8 exhausting into a flock separator 9 where the flock is sprayed with water and discharged through a drain. The rolls 3 are driven, through reduction gearing, by the motor 10 of the main blower 6 and fan 8.
Patent GB-702539-A (GB)
Title: Improvements in or relating to carcase sawing devices
Inventor: DIMOND LEONARD HOWARD
IPC: A22B5/20
Filed: 1951-01-23
Abstract: 702,539. Reciprocating saws. VICTORIA & ALBERT ENGINEERING CO. (BRISTOL), Ltd. Dec. 13, 1951 [Jan. 23, 1951], No. 1729/51. Class 145 (2) A reciprocating saw for sawing carcases comprises a sealed housing acting as an oil bath and containing the reciprocating mechanism of the saw, a motor mounted on the housing, a reciprocating arm projecting from the housing to carry the saw blade, a guide device mounted on the housing to guide the blade, and handles on the housing. The housing 11 is closed by a heavy cover plate 44 having a projection 45 thereon. This functions to damp vibrations in the saw. The saw is balanced about a pivot point 31 from which the saw is suspended, the suspension means being counterbalanced. The saw guide 19 has an opening 32 with a wedge-shaped edge 33 which opens the cut made by the saw. The guide 19 is carried by brackets 39 which are coupled to the housing by anti-vibration means. The saw shaft 14 is hollow to reduce vibration and is provided with an oil seal where it penetrates the housing.
Patent GB-1151031-A (GB)
Title: Process for the Polymerization of Butadiene
IPC: C08F136/06
Filed: 1967-01-12
Abstract: 1,151,031. Polymerizing butadiene. JAPAN SYNTHETIC RUBBER CO. Ltd. 12 Jan., 1967 [22 Jan., 1966], No. 1777/67. Heading C3P. Butadiene is polymerized to cis-polybutadiene in a hydrocarbon solvent in the presence of a catalyst prepared from (A) an organic complex of nickel, (B) a halide or oxyhalide of a Group IVA or VA metal, or a boron halide or complex thereof and (C) an organo-metallic (including boron) compound of a Group I, II or III metal, and, when the polymerization has proceeded to a pre-determined conversion, adding (D) an organometallic (including boron) compound of a Group I, II, or III metal which does not contain a halogen atom. In the examples, the solvent used is toluene, and the polymerization catalyst is inactivated with isopropylalcohol and 2,6-di-t-butyl.4-methylphenol. Exemplified components (A) are nickel naphththenate, acetylacetonate, and benzoate, (B) are BF 3 , etherate, TiCl4, and vanadium oxychloride, (C) triethylaluminium, n-butyl lithium, and diethyl zinc, and (D) triethyl aluminium, diethyl aluminium ethoxide, diethyl zinc, nbutyl lithium, and diisobutyl aluminium hydride. The components (D) are referred to as "Mooney viscosity jump agents". In comparative examples, butadiene is polymerized using (1) nickel naphhthenate/BF 3  etherate/(C 2 H 5 ) 8 Al, and TiCl 4 /thionyl chloride as a jump agent, (2) bis(triphenylphosphine) cobaltous bromide/aniline/ethyl aluminium sesquichloride, and (C 2 - H 5 ) 3 Al as jump agent, and (3) TiCl 4 /I 2 /(C 2 H 5 ) 3 - Al, with (C 2 H 5 ) 3 Al as jump agent.
Patent GB-777155-A (GB)
Title: Improvements relating to the treatment of polymeric materials
Inventor: WADDINGTON FRED BERRY
IPC: B29C71/04
Filed: 1955-01-20
Abstract: The heat distortion temperature of commercially available polymethacrylates is raised by subjecting the polymer to a small amount, preferably not greater than 10 Mrads., of high energy radiation, the amount of radiation being limited so as to avoid appreciable degradation of the polymer.  The effect is believed to be due to the polymerization of residual monomer.  The polymer may be polymethyl or polyethyl methacrylate, and the radiation is preferably an electron beam derived from a travelling wave linear accelerator. Specification 764,337, [Group XL (a)], is referred to.ALSO:The heat distortion temperature of commercially available polymethacrylates is raised by subjecting the polymer to a small amount, preferably not greater than 10 Trads, of high energy radiation, the amount of radiation being limited so as to avoid appreciable degradation of the polymer.  The effect is believed to be due to the polymerization of residual monomer.  The polymer may be polymethyl or polyethyl methacrylate, and the radiation is preferably an electron beam derived from a travelling wave linear accelerator.  Specification 764,337 [Group XL(a)] is referred to.
Patent GB-413749-A (GB)
Title: Improvements in and relating to excess voltage protective electric discharge devices
IPC: H01T4/20
Filed: 1933-01-19
Abstract: 413,749. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of McEachron, K. B. ; 23, Waverly Street, and Wade, E. J. ; East Acres, both in Pittsfield, Massachusetts, U.S.A.) Jan. 19, 1933, No. 1840. Convention date, Jan. 20, 1932. [Class 38 (iv).] An excess-voltage protective-device comprises an insulating casing 10, a plurality of spark-gap assemblies 17 in the casing mounted on a support 13 constituted by a strip of resistance material to which the gap assemblies are electrically connected in parallel by conducting bolts and clips 15, 16, 18 so as to distribute the normal voltage over all the gaps, springs 14 between the support 13 and the inner surface of the casing each electrically connected by studs 15 to a separate gap assembly, a conductive member 19 between each spring 14 and the inner surface of the casing 10, and a conductive member 20 on the outside of the casing extending opposite all the inner conducting members 19 so as to provide a capacitance with each of them for disturbing the voltage distribution when an abnormal or high frequency voltage is applied to the device to cause the gaps to break down. A cover 11 may be secured to the casing by a bolt 25 with the interposition of a gasket 12. Each gap assembly is a self-contained readily removable and interchangeable spark-gap element having one or more gap units; it may consist of two such units comprised by four metal electrodes mounted in a porcelain cylinder, one electrode of each unit having a central metal plug which is adjustable to vary the gap length. The conducting strip 20 and the low voltage end of the resistance support 13 are connected to earth, preferably through a resistance, whilst the other end of the resistance is connected to the line or the like to be protected. The resistance 13 determines the voltage distribution for voltages of normal frequency, whereas the values of the capacities between the conducting members 19 and 20 determine the voltage distribution for highfrequency voltages.
Patent GB-763795-A (GB)
Title: Slope or bank protection system
IPC: E02B3/14
Filed: 1955-01-21
Abstract: 763,795. Revetments. BEVEREN, P. W. VAN. Jan. 21, 1955 [Feb. 17, 1954], No. 1931/55. Class 68 (2). A revetment comprises blocks 1 having raised triangular portions 2 forming between them collecting basins 3 for the receding water, the basins communicating with each other through narrower passages 4.
Patent GB-1241153-A (GB)
Title: A circuit or converting a direct current potential to an alternating current potential
IPC: H02M7/5381
Filed: 1970-01-15
Abstract: 1,241,153. D.C.-A.C. conversion. GENERAL MOTORS CORP. 15 Jan., 1970 [27 May, 1969], No. 1978/70. Heading H2F. In a D.C.-A.C. converter, a pair of fieldeffect transistors (FET) 40, 50 are connected in parallel between one side of the D.C. input 10 and an output circuit, the FET's being biased by a D.C. source so as to be conductive and having a further pair of transistors 80, 90 connected across their control circuits and controlled by an A.C. signal so that the FET's become non-conductive alternately. The frequency is determined by a 400 Hz. source 24 which is rectified at 30, 31 so as to provide bias for the gates 43, 53 of the FET's 40, 50. The bias is short-circuited by transistors 80, 90 at a time depending on the setting of phase shifters 34, 35; 36, 37, so that the phase of the output is a function of the setting of resistors 34, 36.
Patent GB-178530-A (GB)
Title: Electric current regulator for automobile headlights
IPC: H02J7/14
Filed: 1921-01-13
Abstract: 178,530. Wallace, H. E. Jan. 13, 1921. Lighting systems; regulation, automatic systems and apparatus for.-An alternating-current lighting system for automobiles comprises an automatic induction regulator and a switching- device which inserts a resistance automatically when a lamp fails. A generator 21, Fig. 4, is connected to the lamps 27, 29 through an induction regulator, the coils 19, 19<a>, Figs. 2 and 4, of which are mounted upon U-shaped cones 16, 16a respectively. The members 15, 15a of the cores are connected by parallel links 13 and a spring 13<a>, and the links are supported on pins 12 carried by a bracket 1. An increase of current in the coils 19, 19<a> gives the cores 16, 16<a> a parallel motion to decrease the magnetic reluctance of the regulator, thereby causing a decrease in the current supplied to the lamps. The lead 25 is connected to the middle point of a coil 5 and under normal conditions, with the lamps 27, 29 in order, the two halves of the coil 5 produce no energization of the core 4. When one of the lamps fails, the armature 7 of the core 4 is attracted to engage a contact 11, thereby inserting a resistance 32 for the faulty lamp.
Patent GB-551270-A (GB)
Title: Improvements in or relating to a device for holding a safety razor blade during re-sharpening
IPC: B24D15/10
Filed: 1942-02-16
Abstract: 551,270. Sharpening safety-razor blades; hand tool &c. handles. GINSBURG, L. Feb. 16, 1942, Nos. 2051 and 2052. [Classes 60 and 61 (i)] [Also in Group XIV] A device for holding a safety razor blade 3 during resharpening comprises a hollow handle 1, Figs. 1 and 5, containing an axially rotatable member 2 adapted at its outer end for gripping the blade and provided with studs 6 or the like for engaging the edge of the curved sharpening surface. The blade is gripped between the limbs of a spring steel strip 11 the ends of which are secured in a slot in the member 2. When using a flat strop the handle 1 and member 2 are secured together by a locking ring 15, by screw devices or by the engagement of a finger or thumb in co-operating depressions in the parts 1, 4. The studs 6 may be screwed for the attachment of a shaving brush, a shaving- soap holder or a support 18 for a razor blade holder 19, 21, Fig. 8.
Patent GB-763914-A (GB)
Title: Improvements relating to the preparation of oximes from cyclo-aliphatic nitro-compounds
Filed: 1955-01-24
Abstract: Oximes are prepared by contacting a cycloaliphatic nitro compound in vapour phase with a solid salt at 150-350 DEG  C., which salt has a pH value greater than 7 in aqueous solution.  An inert carrier gas may be mixed with the nitro compound, e.g. water vapour, carbon dioxide, hydrogen, or nitrogen, the preferred temperature range is 225-275 DEG  C., and salts specified are the carbonates, borates, or aluminates of alkali metals or alkaline earths, e.g. the carbonates of sodium, potassium, rubidium, calcium, barium, zinc, magnesium, thallium, cadmium, and manganese, sodium aluminate, sodium and potassium borates.  The salts may be fixed on a solid carrier, e.g. calcium carbonate, and zinc, manganic or cadmium oxide.  The catalyst may be of coarse particles or fluidized, and may be regenerated by treatment with an oxygen-containing gas.  Unsaturated oximes in the product may be hydrogenated to increase the yield of saturated oximes.  In examples, a mixture of nitrocyclohexane, water vapour, and nitrogen is passed over (1) zinc oxide carrying potassium, rubidium, sodium, or calcium carbonates; (2) potassium metaborate or zinc oxide, (3) potassium carbonate or cadmium or manganic oxide, on activated coal or on aluminium silicate.ALSO:Catalysts for the conversion of nitro compounds to oximes (see Group IV(b)) comprise a solid salt which has a pH value greater than 7 in aqueous solution which may be deposited on a carrier such as one of the said salts, e.g. calcium carbonate, or a metal oxide.  Examples describe the impregnation of freshly precipitated zinc carbonate with potassium bicarbonate solution, and heating to give potassium carbonate on zinc oxide, and refer to the analogous preparations of catalysts comprising (1) rubidium, sodium, and calcium carbonates on zinc oxides, (2) potassium metaborate on zinc oxide, (3) potassium carbonate on cadmium oxide, manganic oxide, activated coal, or aluminium silicate.  Other salts mentioned are the carbonates of barium, zinc, magnesium, thallium, cadmium or manganese, sodium aluminate. sodium and potassium borate.
Patent GB-628631-A (GB)
Title: Process for the recrystallisation of melamine
Filed: 1947-01-23
Abstract: Crude melamine is dissolved in water in a closed vessel at above 100 DEG  C. and melamine isolated by cooling to crystallize. Suitable temperatures are 140-220, especially 150-180 DEG  C., at which melamine has enhanced solubility and suffers little decomposition if time is regulated and, if desired, substances counteracting decomposition, such as ammonia, are present.  Crude melamine may be heated with water in a pressure vessel while stirring, the solution filtered under pressure, for example with the aid of diatomaceous earth or charcoal, and cooled with or without stirring.  The process may also be made continuous or combined with such methods of purification as washing with water, aqueous alkali, weak hydroxy acids such as tartaric, citric, and gluconic, for example as their alkali salts, or polyhydroxy compounds such as glycerine and mannitol.  The treatment may be effected in the same vessel as that in which the melamine is produced.  It removes iron giving a product which may have an iron content of less than 0.5 per mil.  In examples, melamine is heated with between 2 and 6 times its weight of water at 150-180 DEG  C. for times between 12 minutes and 1 hour.ALSO:Crude melamine is dissolved in water in a closed vessel at above 100 DEG  C. and melamine isolated by cooling to crystallize. Suitable temperatures are 140-220 DEG  C., especially 150-180 DEG C., at which melamine has enhanced solubility and suffers little decomposition if time is regulated and, if desired, substances counteracting decomposition, such as ammonia, are present.  Crude melamine may be heated with water in a pressure vessel while stirring, the solution filtered under pressure, for example with the aid of diatomaceous earth or charcoal, and cooled with or without stirring.  The process may also be made continuous or combined with such methods of purification as washing with water, aqueous alkali, weak hydroxy acids such as tartaric, citric, and glucuronic, for example as their alkali salts, or polyhydroxy compounds such as glycerine and mannitol.  The treatment may be effected in the same vessel as that in which the melamine is produced.  It removes iron, giving a product which may have an iron content of less than 0.05 per mil.  In examples, melamine is heated with between 2 and 6 times its weight of water at 150-180 DEG  C., for times between 12 minutes and 1 hour.
Patent GB-1178432-A (GB)
Title: Process for Preparing Phosphorus-Tri-Isocyanate and Phosphoryl-Tri-Isocyanate.
IPC: A01N59/26
Filed: 1967-01-16
Abstract: 1,178,432. Phosphorus and phosphoryl triisocyanate. FARBWERKE HOECHST A.G. 16 Jan., 1967 [15 Jan., 1966], No. 2138/67. Heading C1A. Phosphorus tri-isocyanate is prepared by reacting phosphorus trichloride with an inorganic cyanate at an elevated temperature of 40‹ to 180‹ C. in a chlorohydrocarbon solvent having a flash point above 30‹ C. and a boiling point in the range of 40‹ to 180‹ C., with the addition of an organic nitrile as a catalyst. The solvent may be a perchlorohydrocarbon such as carbon tetrachloride or perchloroethylene. The catalyst is preferably an aliphatic nitrile. The phosphorus tri-isocyanate may be oxidized to phosphoryl tri-isocyanate and this is achieved by removing inorganic chloride, formed during the reaction, from the reaction product and oxidizing the reaction product with sulphur trioxide at - 30‹ to 10‹ C. In an example, phosphorus trichloride and sodium cyanate are reacted in the presence of acetonitrile, in carbon tetrachloride. On completion of tins reaction, sodium chloride is removed from the reaction products and the solution of phosphorus tri-isocyanate is then oxidized with sulphur trioxide to phosphoryl tri-isocyanate.
Patent GB-759394-A (GB)
Title: Improvements in or relating to gramophone pick-up arms
Inventor: GIBSON JOHN BROWN
IPC: G11B3/08
Filed: 1954-01-25
Abstract: 759,394. Supporting gramophone pickups. COLLARO, Ltd. Jan. 21, 1955 [Jan. 25, 1954], No. 2192/54. Class 40(2) A gramophone pick-up arm 3 is hinged about a supporting member 6 therefor by one, or a number of strips side by side in the same plane, of a flexible and resilient thermoplastic synthetic resin material, e.g. nylon, opposite edges of the or of each strip being fixed respectively to the arm 3 and to the supporting member 6 to permit vertical movement of the arm. The strip 7 may comprise two pieces separate from each other or joined by 'one or two bridge pieces to form U-shaped or perforated rectangular members respectively. The part 4 to which the arm is fixed has a counterbalance weight 5 and to limit upward and and downward vertical movement respectively, an integral stop 18 and a stop 19 mounted on an adjustable screw 21 which extends through a slot 20 in the supporting member 6.
Patent GB-1133281-A (GB)
Title: Ventilating and circulating air system
IPC: F24F11/00
Filed: 1967-01-16
Abstract: 1,133,281. Ventilation. ACME ENG. & MFG. CORP. 16 Jan., 1967 [10 Feb., 1966]' No. 2202/67. Heading F4V. A ventilation and air circulation system for a greenhouse comprises a motorized shutter assembly 16 in a wall 14 of the greenhouse, a distribution fan 10 spaced therefrom, a tube 20 attached to the discharge end of the fan 10 and having a plurality of openings 22 along its length, and an exhaust fan 26 in a further wall 28 at the other end of the building to the first wall 14. The exhaust fan 26 is switched on and the shutters 16 are open for ventilation, and the fan is switched off and the shutters closed for circulation, the two being operated simultaneously by a humidistat 48 and/or a thermostat 46. The distribution fan 10 may incorporate stationary vanes to reduce turbulence. The tube 20 may be formed of flexible plastics material which is held in shape by the flow of air. The openings 22 are located within 30 degrees of the horizontal diameter of the tube 20.
Patent GB-753652-A (GB)
Title: A method of compressing a fluid
IPC: F02C3/067
Filed: 1951-11-09
Abstract: 753,652. Axial-flow compressors. PAVLECKA, V. H. Nov. 9,1951 [May 25,1951], No. 2228/55. Divided out of 753,561. Drawings to Specification. Class 110(1) A method of compressing a fluid in a dynamic compressor comprises the steps of accelerating the fluid in a stationary contra-prerotation stage prior to compression, compressing the fluid in a first compression stage by creating at least an oblique supersonic compression within the fluid, the shock being made by the inclination of the channel wall belonging to the pressure side of a blade with respect to the original direction of flow, and then turning the fluid subsonically in the remaining portion of the first stage on the downstream side of the shock. The subjectmatter of this Specification is substantially the same as that described in Specification 753,561 but the claims differ. Specification 743,475 also is referred to.