baber/WOPTO huggingface dataset:
Patent GB-816212-A (GB)
Title: Fluid-flow control means
Inventor: BOTTOMS CHARLES HERBERT
IPC: G05D7/01
Filed: 1954-10-25
Abstract: 816,212. Pistons. LUCAS (INDUSTRIES) Ltd., J. Oct. 7, 1955 [Oct. 25, 1954], No. 30634/54. Class 122 (1). [Also in Group XXIX] A fluid-flow control means in which a spring- loaded, flexible, non-elastic diaphragm f separates inlet and outlet chambers b, c, and the tapered end of a plug d secured to the casing extends through a hole in a rigid disc secured to the diaphragm for controlling flow through the hole with movement of the diaphragm, and the annular portion of diaphragm between the disc and casing assumes a U-form, has a hollow, rigid, cylindrical trunk e attached to the diaphragm in the outlet chamber which seats at h on a seating i around the outlet when inlet pressure deflects the diaphragm sufficiently whereby fluid is trapped in the annular space between the trunk and casing to prevent rupture of the diaphragm.
Patent GB-1109055-A (GB)
Title: Transport mechanism for the recording medium of a magnetic recorder
Inventor: BALSILLIE HARRY
IPC: G11B15/43
Filed: 1965-07-19
Abstract: 1,109,055. Tape drive. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. 14 July, 1966 [19 July, 1965], No. 30656/65. Heading G5R. Tension is maintained in a tape 25, which is movable in either direction past a record/playback head (not shown) by capstan 26, by means of a tensator spring arrangement associated with each spool 24, 24a which acts to wind tape on to its respective spool. Each spool shaft 11, 12 is geared to a further shaft 16, 21 to which one end of spring 19, 23 is connected. The other end of the spring is connected to a freely rotatable spindle 17, 22, and tends to wind itself on to the spindle hence applying an anticlockwise torque to spool 24 and a clockwise torque to spool 24a.
Patent GB-151863-A (GB)
Title: Improvements in router tools such as are used for removing surplus metal from the surface of stereo type block or the like
IPC: B41B5/08
Filed: 1919-12-08
Abstract: 151,863. Ure, W. A., and Smith, V. S. Dec. 8, 1919. Milling - cutters. -A tool for a routing-machine for stereotype plates &c. is formed with the cutting portion outside the axis of rotation so that no part of the surface being operated upon is constantly obscured. The cylindrical shank portion 1 is adapted to fit the rotating head of the machine, and the cutting-portion 2 is ground of formed completely outside the axis a. Fig. 4 shows a section on the line A - - B, Fig. 2. The end 5 is ground at an angle for cutting.
Patent GB-1341444-A (GB)
Title: Preparation of polyisocyanates which have urea groups and their use in cellular and non-cellular polyurethane resins
Inventor: DIETRICH WERNER
IPC: C07C275/28
Filed: 1971-07-01
Abstract: 1341444 Polyurethanes BAYER AG 1 July 1971 [1 July 1970] 30787/71 Heading C3R [Also in Division C2] In a process for the production of polyurethane resins by means of the isocyanate polyaddition process, the isocyanate component is a liquid di- or poly-isocyanate containing urea groups prepared by reacting a polyisocyanate at from - 20‹ to + 80‹ C. with a polyamine which contains only secondary amine groups in an NCO : NH group ratio of 2 : 1 to 100 : 1. In the examples (1) an isocyanate of formula is reacted with a polyester derived from phthalic acid and trimethylolpropane and containing titanium dioxide and a polyvinylmethyl ether; (2) an isocyanate of the formula dissolved in ethyl acetate containing tin-II- acetate is cross-linked to form a lacquer; (3) an isocyanate of the formula and the corresponding isocyanates prepared from m- or p-xylylene diisocyanates or isophorone diisocyanate instead of hexamethylene diisocyanate are reacted with a polyester prepared from adipic acid and ethylene glycol; (4) an isocyanate derived from N,N<SP>1</SP>-dimethyl-4,4'- diamino-diphenylmethane and a mixture of 2,4- and 2,6-toluylene diisocyanate is reacted with (i) a mixture of a propylene oxide polyether, endoethylene piperazine, silicon stabilizer and monofluorotrichloromethane, (ii) an ethylene oxide polyether mixture as in (i); and (5) an isocyanate derived from N,N<SP>1</SP>-diethyl-diaminodiphenylmethane and 4,4<SP>1</SP> - diisocyanatediphenylmethane is reacted with a mixture of a propylene oxide started on sucrose, endoethylene piperazine, water, silicon stabilizer and monofluorotrichloromethane.
Patent GB-858759-A (GB)
Title: Improvements in or relating to the polymerisation of acrylonitrile
IPC: C08F20/44
Filed: 1957-10-03
Abstract: Acrylonitrile is polymerized with the aid of a catalyst which comprises a mixture of (1) an organo-metallic compound of Group I, II or III of the Periodic Table and (2) a transition metal compound of Group IV, V or VI of the Periodic Table in the molecule of which at least one organic group is bound to the metal by an oxygen atom. Compounds of type (1) specified are diethyl and dibutyl zinc and triethyl aluminium; compounds of type (2) specified are chromium acetonylacetonate and triethoxy vanadium. Polymerization may be carried out in bulk, in a solvent for the monomer or a solvent for the polymer, e.g. dimethyl formamide. The polyacrylonitrile produced may be purified by treatment with alcohols and dilute hydrochloric acid followed by dissolving in dimethyl formamide and coagulation with acetone or methanol.
Patent GB-954838-A (GB)
Title: Improvements in or relating to the treatment of molten steel in vacuum degasification
IPC: C21C7/10
Filed: 1960-09-08
Abstract: <P\1> A method of adding deoxidizing agents and/or alloying elements to molten steel in a vacuum degassing process comprises placing the additions in a tube which is held in a position outside the melt by a device which is rendered inoperative when immersed in the melt and subsequently lowering the tube into the melt. As shown, a tube 5 supported by a piston 7 and a wire 10 in a casing 4 attached to a vacuum vessel 1 is filled with the desired additions. Compressed air may be supplied above the piston 7 and a hand winch 11 provided to lower the tube 5 into the melt in a position the intake pipe 2 of the vacuum chamber, the wire 10 is rapidly melted and the compressed air quickly moves the tube into the desired position.
Patent GB-155236-A (GB)
Title: Improvements in valveless pumps
IPC: F04B3/00
Filed: 1920-11-03
Abstract: 155,236. Saussard, L. Dec. 10, 1919, [Convention date]. Addition to 142,097. [Class 102 (i), Pumps &c.]. Radial-cylinder and revolving-cylinder pumps. -In a pump of the kind described in the parent Specification, the shaft 7 carrying the actuating eccentric 17 is hollow and divided by an oblique partition 27 into two chambers 8, 11, communicating respectively with the inlet 9 and delivery 6, and also with the pump chambers through ports 19, 20 in the shaft. The inlet end of the shaft may be packed and lubricated by oil in a chamber 29 in the bottom of the casing 1. The oil is forced by the pumped gas through a duct 30 to the bearing of the shaft and returns through a. chamber 14 and passage 32. The shaft may be stationary and the casing 1 revolve, or the shaft and casing may revolve in opposite directions.
Patent GB-850482-A (GB)
Title: Improvements in or relating to photographic desensitised emulsions
Inventor: DUFFIN GEORGE FRANK
IPC: C09B23/10
Filed: 1957-10-04
Abstract: Dimethine dyes of the general formula:-  <FORM:0850482/IV (c)/1> wherein D completes a 5- or 6-membered nucleus X is an anion and R is an alkyl, hydroxyalkyl or aralkyl group, are prepared by reacting a cyclammonium quaternary salt having a reactive a -methyl group with a pyridine -4-aldehyde.  Examples are given of the preparation of compounds wherein R is a methyl or ethyl group and D completes a 3-methyl- or 3-methyl-thio-pyridazine, benzthiazole, indoline, pyridine or quinoline nucleus.  According to the Provisional Specifications, the pyridyl group may carry one to four alkyl, aralkyl or aryl substituents.
Patent GB-185679-A (GB)
Title: Tool for the removal and replacement of knives for mowing machines
IPC: A01D75/12
Filed: 1921-11-22
Abstract: 185,679. Brettell, F. G., (Greensfelder, E. S.). March 22, 1921. Rigid-jaw wrenches.-A tool for removing and replacing of the knife-bar of a mowing-machine comprises a handle a provided at one end with a fork b and a forked hook e, and at the other with a notch k to form a spanner opening, and a flat shoulder g which may be used as a hammer.
Patent GB-1395782-A (GB)
Title: Emulsifier compositions for creaseproofing textile materials containing cellulose and or regenerated cellulose
IPC: D06M15/29
Filed: 1972-07-04
Abstract: 1395782 Creaseproofing composition for textiles BADISCHE ANILIN-& SODA-FABRIK AG 4 July 1972 [5 July 1971] 31235/72 Heading DIP [Also in Division C3] Textile materials containing cellulose or regenerated cellulose are creaseproofed by a process using an aqueous liquor which liquor contains a methylolated amino-resin forming substance or a methylolated amino-resin forming substance which has been etherified at the methylol group, a curing catalyst optionally an organic solvent, and an emulsifier composition which comprises A 5 to 70 parts by weight of a copolymer containing (1) 1 to 10% by weight of units of an α, # ethylenically unsaturated carboxylic acid containing 3 to 10 carbon atoms which may or may not be substituted by one or more hetero atoms or groups containing hetero atoms or of a mixture of 2 or more such acids (b) 99 to 70% by weight of units of an ester of a C 1 -C 8  saturated alcohol with an acid defined in (a) or of a mixture of 2 or more -such esters and (c) 0 to 20% by weight of units of another copolymerisable ethylenically unsaturated compound which may or may not be capable of providing cross linking or of a mixture of 2 or more such unsaturated compounds; B 30 to 80 parts by weight of a cationic, anionic or non ionic surface active compound and C 30 to 87 parts by weight of water. The aqueous liquor may contain protective colloids e.g. polyvinyl alcohol or methyl cellulose. In the examples an emulsifier composition in which A is a copolymer of ethylacrylate, n butyl acrylate, acrylic acid and either methylmethacrylate or methacrylamide and B is a mixture of sodium paraffinsulphonate and an adduct of ethylene oxide and oleyl alcohol is mixed with one of trichloroethane, perchloroethylene or trichloroethylene one of NN' dimethylol 4, 5 dihydroxy (or dimethoxy) ethylene urea, NN' dimethylol propylene (or ethylene) urea, NN' di (methoxymethyl) propylene urea or NN' di (methoxymethyl) urone, further water and one of monochloroacetic acid, zinc nitrate and paratoluenesulphonic acid and the resultant composition is used in an aqueous finishing bath to treat cotton.
Patent GB-618113-A (GB)
Title: Method of preparing photographic positive transparencies and intaglio printing surfaces
IPC: G03F5/20
Filed: 1946-10-21
Abstract: 618,113. Photo-mechanical printing surfaces. CROWELL - COLLIER PUBLISHING CO. Oct. 21, 1946, No. 31258. Convention date, Nov. 20, 1945. [Class 98 (ii)] A screened positive transparency which has discrete silver dots of varying sizes, formed as by use of a reduced screen distance and exposure time, is subjected to the action of a bleaching medium to completely or partially bleach the dots and is then redeveloped in a colour developer to impart colour to the bleached dots or bleached portions of the dots, and such is used for preparation of an intaglio printing surface by known photographic and etching methods. The screened positive may be made from an ordinary photographic negative of a subject, or from a separation negative of one of the colours of a coloured subject; and is bleached as by use of a potassium bromidepotassium ferricyanide solution for a time sufficient to permit only the peripheries of the larger dots to be bleached; redeveloped as by a solution containing p-amino-diethylaniline monohydrochloride as colour developer and p-nitrophenylacetonitrile as colour coupler which produces magenta in the bleached areas; and cleared as by Farmer's Reducer for a time insufficient to reduce the size and opacity of the centres of the larger dots; all of these operations being carried out under observation in bright light and requiring times of treatment such as 20 to 100 seconds. In the drawing, Fig. 1 represents the subject, Fig. 2 a screened positive transparency of such, Fig. 3 this positive as modified by the invention and indicating coloured areas of dots by hatched lines; and Figs. 4 and 5 plan and section views respectively of an intaglio printing surface produced from the modified positive of Fig. 3.
Patent GB-947025-A (GB)
Title: Expansion turbine with a braking device driven thereby
IPC: F16C32/06
Filed: 1962-08-15
Abstract: 947,025. Automatic speed control. SULZER FRERES S. A. Aug. 15, 1962 [Aug. 15, 1961], No. 31353/62. Heading G3R. [Also in Divisions F1, F2 and F4] In a system for controlling the fluid pressure in the bearing of a turbine-generator combination in accordance with speed, an A. C. signal is produced as a result of the periodically varying gap between two flats on the generator shaft 70 and the magnetic core of a pick-up 71, the frequency of the voltage being a function of speed. The A. C. is converted into a D. C. voltage in a transducer 72 controlling an electro-pneumatic transducer 73 to which are connected compressed air supply and discharge pipes 74, 75. The bearing throttle valve 64 is adjusted by way of signal line 76.
Patent GB-992276-A (GB)
Title: Compounds related to fusidic acid and dihydrofusidic acid
Inventor: GADTFREDSEN WAGN OLE
IPC: C07J13/00
Filed: 1962-08-15
Abstract: The invention comprises derivatives of fusidic acid wherein one or both of the hydroxy groups at the 3- and 11-positions are replaced by keto-groups, salts thereof, and their preparation by either (a) cultivation of Fusidium coccineum Fuck K. Tubaki or one of its mutants under aerolic conditions in a carbohydrate-containing medium, or (b) oxidizing one or both of the above-mentioned hydroxy groups, followed if desired, by selective reduction of one of the keto-groups to a hydroxy group, with protection of the 3-keto group by ketal formation if an 11-keto-group is reduced, and with epinerization at the 3-position if necessary.  The compounds of the invention have antibiotic activity and may be administered orally or parenterally, for example as tablets, capsules or suspensions.  Specification 963,499 is referred to.
Patent GB-1134238-A (GB)
Title: A method of and means for attaching cover plates to trunking for fluorescent electric lighting systems
Inventor: PARTRIDGE ANTHONY ROY
IPC: F21V17/12
Filed: 1966-07-13
Abstract: 1,134,238. Trunking. LEWIS SPRING PRODUCTS Ltd. 10 July, 1967 [13 July, 1966], No. 31387/66. Heading H2C. A cover 12 for trunking 10, for fluorescent lighting systems, is screwed to a bridge member 11 having outwardly projecting wing pieces (111) on its side limbs 112, engaging slots 102 in the base 101 of the trunking. Resilient tongues 113 prevent further downward movement of the bridge member.
Patent GB-1313345-A (GB)
Title: Memory apparatus and a method of use
IPC: H01L29/792
Filed: 1970-06-29
Abstract: 1313345 Photo-electric arrangements SPERRY RAND CORP 28 June 1970 [1 July 1969] 31387/70 Heading G1A [Also in Divisions H1 and H3] An analogue or digital store uses a field effect transistor which has a conduction threshold which may be varied, while source and drain are disconnected and the gate energized by illumination representing an input signal, read-out of this information being effected by energizing sourcedrain and gate. The F.E.T. shown is of M.N.S. type having a transparent or opaque gate (e.g. of gold or tin-oxide) insulated from the substrate by two layers of dielectric of different conductivity. If the gate is energized while source and drain are "floating" a space charge region forms in the substrate but this decays progressively when the transistor is illuminated so that an increasing portion of the gate voltage appears at the dielectric interface and this changes the threshold of conduction. The information thus derived from the illumination may be read out by applying a predetermined voltage to the gate when the source and drain are energized, fluid flows in the source-drain path in dependence upon whether the threshold is above or below this voltage. Analogue signals may be read out by sweeping the gate voltage until current flows. Erase is effected by applying a positive voltage to the gate.
Patent GB-288928-A (GB)
Title: Improvements in or relating to epicyclic variable-speed and reversing gearing
IPC: F16H29/04
Filed: 1927-11-22
Abstract: 288,928. Postel, E. Nov. 22, 1927. Variable-speed epicyclic gearing comprises two epicyclic gears mounted side by side the planets d, m of which are connected in pairs, each pair by a slider-crank motion. The planets d mesh with a fixed sun e and are carried by a casing a with a toothed periphery driven from a pinion o or a driving-shaft r. The planets m mesh with a driven sun gear n and are carried in a casing h with a toothed periphery driven from a pinion p on the shaft r. Each planet d carries a crank pin c engaging a radial slot in a guide g fast upon the spindle k of the companion planet m. Each spindle k, as it revolves, turns on its own axis with a cyclically varying speed, and, through a ratchet clutch l, drives its pinion m. The sun n is thus driven by each planet m in turn. The speed ratio is varied by changing the relative eccentricity of the planets d, m by displacing the casing a, h angularly relatively to one another. This may be effected by forming the pinion o with helical teeth and sliding the driving-shaft r axially. Reversed driving is obtained if the pinions m are larger than the pinions d.
Patent GB-430796-A (GB)
Title: Improvements relating to levers for operating cables
IPC: B62L3/02
Filed: 1934-11-02
Abstract: 430,796. Making levers. RADNALL, E. A., Vauxhall Works, Dartmouth Street, Birmingham. Nov. 2, 1934, No. 31458. [Class 83 (ii)] [See also Group XXXI] A brake or other lever for a bicycle or motor-bicycle is formed from a substantially T - shaped blank 1, Fig. 2, which is folded along a line or lines situated at, or adjacent to, the longitudinal centre line of the blank, and 'then bending the folded blank about a transverse line or axis to bring the edges 10, 5 into alignment, and the pivot holes 9 out of alignment with the handle, as shown in Fig. 5. The edges 10 of the blank are bent inwardly to form a substantially tubular handle, and the edges 5 are retained in spaced relationship to permit the cable end to be inserted into the opening 7, 8. The handle 10 is bent into a curve, and the abutting edges in the handle may be secured together, e.g. by welding.
Patent GB-277208-A (GB)
Title: Method of and means for supplementing carburetted air for internal combustion engines
IPC: F02M25/022
Filed: 1926-12-13
Abstract: 277,208. Bradbury, J. A., and Uebergang, G. Dec. 13, 1926. Charge, moistening and treating; materials, actuating; waste heat, utilizing; crank chambers.-Means for introducing into the combustible mixture, steam from the radiator or a separate generator and vapours from the crank-case comprise two pipes 2a, 2b which lead from the top of the radiator or the separate generator and the filler cap 24, or breather pipe 8 of the crank-case, respectively, and unite to form a pipe 2 leading to the induction pipe. This pipe has a rose like end in a fitting 11 mounted between the flanges of the carburettor and the indication pipe; a valve 18 is provided to regulate the flow through the pipe 2. The steam may, alternately, be formed in a generator 26, Fig. 5, which is mounted saddle-fashion on the exhaust pipe 27 and contains perforated anti-splash baffles 33 and an overflow pipe 34 which may be bent in zigzag fashion to prevent too free on escape of steam.
Patent GB-1005090-A (GB)
Title: Electric pulse generating means
IPC: H02K21/38
Filed: 1964-08-04
Abstract: 1,005,090. Magnetizing. BENDIX CORPOKATION. Aug. 4, 1964 [Aug. 13, 1963], No. 31553/64. Heading H1P. [Also in Division H2] The magnet of an inductor pulse generator (see Division H2) is magnetized by energizing, e.g. by capacity discharge, the output coil 22 with a cone 9 around the generator to complete the magnetic flux path.
Patent GB-1044312-A (GB)
Title: Improved zeolitic catalysts
IPC: C10G11/00
Filed: 1963-08-09
Abstract: A hydrocarbon feed may be hydrocracked, cracked or hydroisomerized using a catalyst composition comprising a crystalline alumino silicate zeolite suspended in a siliceous matrix, the zeolite having pore openings of between 6A and 15A, a silica to alumina mole ratio above 3 and a sodium content below 10 weight per cent.  The zeolite may be cation exchanged with hydrogen, ammonia or cations of metals of Groups II, III, IV, V, VIB, VIIB or VIII or rare earth metals, and may be subsequently impregnated with another metal.  For cracking a hydrocarbon oil a fluidized bed of catalyst having a particle size of 20 to 80 microns may be used; cracking conditions may be 875 DEG  to 980 DEG  F., and 0-20 p.s.i.g.ALSO:A catalyst composition comprises a crystalline alumino-silicate zeolite suspended in a siliceous matrix, the zeolite having pore openings between 6A and 15A, a silica to alumina mole ratio above 3 and a sodium content below 10 weight per cent.  The composition may contain 1 to 99 weight per cent zeolite. The zeolite may be faujasite, mordenite or type [13Y] zeolite, and may be suspended in silica or silica-slumina.  Before or after the zeolite is embedded in the matrix it may be cation exchanged with hydrogen or ammonium ions or with cations of metals of Groups II, III, IV, V, VIB, VIIB, VIII or rare earth metals, e.g. Ca, Al, Ba, Cd, Ce, Pr, La, Nd, Sa, Cr, Co, Cu, Fe, Pb, Li, Mn, Ni, Ag, Sr, Zn, Sn, Pt, Pd, Mo, V, Rh, Zr, and may then contain 1 to 20 weight per cent of these metals.  The composite may be spray-dried at a temperature of 220 DEG F. to 650 DEG F. and calcined at 500 DEG F. to 1500 DEG F. and optionally steam treated at 850 DEG F. to 1200 DEG F. The spray-dried particles are predominantly 20 to 80 microns diameter and have pore volume of 0.04 to 0.80 cc/gm. The base-exchanged embedded zeolite may be impregnated with another metal, e.g. Pd, Pt, Rh, Mo, Cr, V, Co, Ni, Cu, Ag, Mn. Examples relate to synthetic zeolite which is (1) base-exchanged with Mg, and subsequently embedded in SiO2-[Al]2O3 (2) or in SiO2 (3); (8) embedded in SiO2-Al2O3 then base exchanged with Mg; (11) embedded in SiO2 then base-exchanged with Mg; (13) base-exchanged with Ni then embedded in SiO2; (14) base-exchanged with NH4Cl then with Pd and embedded in SiO2.