baber/WOPTO huggingface dataset:
Patent GB-1306847-A (GB)
Title: Dual mode deflection amplifier
IPC: H03K6/02
Filed: 1970-03-26
Abstract: 1306847 Amplifiers; cathode-ray tube deflection current circuits SANDERS ASSOCIATES Inc 26 March 1970 [27 March 1969] 14945/70 Heading H3T  An amplifier is adapted linearly to control the current in the deflection coil, for example for character tracing, and also to provide a rapid change of current for the flyback in a raster mode of operation, a capacitor being connected into the output circuit during flyback to absorb the coil current. The capacitor may provide so-called "resonant return". The amplifier shown comprises a common emitter input stage 11, 12, a common base stage 21, 22 and emitter follower cascade connected output stages. The emitter circuits of stages 21, 22 are formed as constant current circuits which in the absence of an input signal supply most of their current to transistors 11 and 12. Positive and negative input signals to divert more or less to the common base stages 21, 22 and so linearly control the current in the deflection coils 4. Negative current feedback is provided from a resistor 6 in series with the coils, to a comparator C. To produce a raster flyback the output transistors 45 are driven to cut-off. The voltage across the coils accordingly swings negatively and when it passes a - 10V. level the clamping diode 77 cuts off and diode 78 becomes conducting connecting capacitors 79, 75 and 59 across the coil to form a resonant circuit. Resonant reversal of the current takes place after which the amplifier again takes control. During the flyback the base of transistor 41 is discharged through transistor 22 and is subsequently held cut-off by the - 100V. supply diode, diode 37 becoming non-conducting and a further conduction in the base-collector path of transistor 42 being prevented by diode 58.
Patent GB-1031710-A (GB)
Title: Improvements in or relating to the polymerisation of monomeric formaldehyde
Inventor: GIBB ALEXANDER RAMSEY MAUND
IPC: C08G2/00
Filed: 1962-04-17
Abstract: Formaldehyde is polymerized using a catalyst or organo silicon compound which shows an alkaline reaction to litmus paper moistened with distilled water.  The catalyst may have the formula <FORM:1031710/C3/1> where M is an alkali metal, a quaternary ammonium group or a phosphonium group, R1 and R2 are hydrocarbon radicals and R3 is a hydrocarbon radical or a polysiloxane chain or of formula <FORM:1031710/C3/2> where M, R1, R2 and R3 have the same meanings, or of formulae (R4)yN-[Si(R5)3]x or [(R4)yN]4- 2 Si(R5)2 or [(R4)N-Si(R5)2]n where R4 is hydrogen, a monovalent silyl radical, a monovalent hydrocarbon radical, a substituted monovalent hydrocarbon radical, a divalent hydrocarbon chain or such chain in which one or more carbon atoms is replaced by a different atom, the two valencies forming a cyclic structure with the nitrogen, or a substituted derivative of such a chain; R5 is hydrogen, a monovalent hydrocarbon radical, or a monovalent siloxane radical or a substituted derivative of any of these radicals, x and y are 1 or 2, z is 1, 2 or 3 and n is an integer greater than 1.  Specified catalysts include potassium trimethyl silanolate, tetramethyl ammonium trimethyl silanolate, triphenylsilyl lithium, heptamethyldisilazane, N-allyltrimethylsilyl - amine, n - propyl-tris-(methylamino) silane, dimethyl bis-(methylamino) silane, hexamethylcyclotrisilazane and octamethylcyclotetrasilazane.  The formaldehyde may be polymerized in the presence of a polymerizable cyclic siloxane, e.g. hexamethyl-cyclotrisiloxane in an inert liquid reaction medium or in the presence of ethylene oxide.  The products may be acylated.
Patent GB-329163-A (GB)
Title: Improved method of and means for securing mats, rugs and the like in position
IPC: A47G27/04
Filed: 1929-05-14
Abstract: 329,163. Appleyard, W. May 14, 1929. Securing mats, rugs, &c. to floors. - The device comprises a strip of spring steel or wood fibre &c. a having end slots b to engage headed screws or nails in the floor and short vertical spiked studs for penetrating the mat &c. Specification 24740/09, [Class 44, Fastenings, Lock &c.], is referred to.
Patent GB-669591-A (GB)
Title: Improvements in or relating to diaryl pyrazolines
Inventor: KENDALL JOHN DAVID
IPC: C07D231/06
Filed: 1949-06-03
Abstract: 1 : 3-Diarylpyrazolines (which may also contain a substituent in the 5-position) are manufactured by reacting in a basic medium (e.g. aqueous pyridine or alcoholic alkali) a 1-arylpyrazoline or 5-substitution product thereof with a diazonium salt prepared from a primary arylamine.  The aryl groups may be phenyl or naphthyl groups which may carry alkyl, aralkyl, aryl, nitro, alkoxy, hydroxy, hydroxyalkyl, carboxylic or sulphonic groups or halogen atoms, or, in the case of the aryl group in the 1-position, amino or substituted amino groups.  Examples describe the preparation of 1 : 3-diphenyl-, 1 : 3-di-(m-tolyl)-, 1-(m-tolyl)-3-phenyl-, and 1-phenyl-3-(m-tolyl, p-bromophenyl and p - sulphophenyl) - pyrazoline.  Additional products specified are 1 : 3 : 5-triphenyl-, 1 : 3-diphenyl - 5 - methyl -, 1 : 5 - diphenyl - 3 - (p - tolyl)-and -3-(p-methoxy, p-ethoxy, p-phenoxy, p-phenyl and p-ethoxy-m-methyl)-phenyl-, 1-phenyl - 3 : 5 - di - (p - chloro and p - methoxy) - phenyl -, 1 : 3 - diphenyl - 5 - (p - methoxy) - phenyl -, 1 - phenyl - 3 - (p - methoxy) - phenyl - 5 - (p - tolyl) - and 1 - phenyl - 3 - (p - tolyl) - 5-(p - methoxy) - phenyl - pyrazoline, and 1 : 4 - di - (11 : 31 - diphenylpyrazolinyl - 51) - benzene.  Specification 669,590 is referred to.
Patent GB-144309-A (GB)
Title: Pipe and cigar lighting device
IPC: F23Q7/00
Filed: 1920-06-03
Abstract: 144,309. Ullmann, J. P. March 27, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Lighting pipes, cigars, and the like by electric devices.-The insulating casing of a pipe, cigar, &c. igniter is provided with an end-piece h comprising a resistance wire embedded in refractory material. The refrac tory material preferably consists o a mixture of sodium silicate and powdered asbestos, e.g. in the pro portion of 2 to 3, which mixture is dried, coated with chalk, and baked When a nickel resistance wire is employed, its resistance is increased by the passage of an electric curren of sufficient duration and voltage to produce oxidation. In one form, the helically wound resistance wire d is carried by a cross-shaped insulating piece c fitted in a hollow socket b and is covered by refractory material The apparatus is enclosed in an in sulating-casing m provided with a spring tongue o and an operating-button p for connecting one of the terminals with a contact k connected to one end of the resistance wire by a lead passing through a tubular extension a on the socket b, the other end of the resistance wire being connected through a metal ring q, a metal tube i and a strip j with the other terminal. The end-piece h is provided with a suitable cover or may be sunk in the interior of a suitable case, and an additional resistance may be arranged within the end-piece. In a modification, the end-piece may be protruded or withdrawn by means of pressure on an axially arranged button and, during its movement, closes or opens the circuit through the resistance wire.
Patent GB-265841-A (GB)
Title: A new and improved-means of pulverizing and separating all kinds of cereals, minerals, and the like
IPC: B02C13/13
Filed: 1926-06-17
Abstract: 265,841. Carline, J. C. June 17, 1926. Addition to 244,146. Impact pulverizers.-In a modification of the pulverizing and separating machine of the parent Specification, a single circular pulverizing-chamber provided with an opening for feeding and returning materials and an outlet fitted with a grating is used, the driving-shaft carrying rigid arms with adjustable hinged beaters and serrated steel plates that come in contact with an adjustable spring-pressed and hinged beater-block. The chamber A has a partitioned feed-hopper A2, and the steel &c. beater-block E is hinged at X2 and acted upon by an adjustable spring K, a rod B1 with a hand-wheel or nuts B2 being provided for adjusting the block. The arms C which carry the hinged beaters C1 and rigid beaters G2 are dovetailed into the shaft B and secured by side discs and bolts B4. The beaters C1 are hinged at C3 and adjustable by means of bolts F1, and the steel plates G2 are secured in jaws in the arms C by means of bolts C4. The pulverized material passes through the grated outlet K1 and upwards through a spout I fitted with a deflector plate N1, trap door U, and adjustable deflector plates W, W1 to direct the coarser material down a spout J into the chamber A for further treatment. Ventilating ports V are provided in the top of the spout J, and the plates W, W1 are operated by means of spindles P with handwheels S. The fine material is carried up the spout I past the plate W1 into a chamber M lined with a wire lining or attrition surface N and containing a revolving brush M. A spout L2 delivers the material from the chamber M into a chamber O having a fabric lining H supported by stays P1. Air outlets H2 are provided on the outer casing of the chamber O, and the pulverized and graded material is delivered through the spout Q, fitted with slides R, into bags &.c.
Patent GB-697136-A (GB)
Title: Manufacture of disazo- and polyazo-dyestuffs
IPC: C09B35/04
Filed: 1951-06-27
Abstract: The invention comprises the disazo and polyazo dyestuffs which are obtainable by coupling diazotized <FORM:0697136/IV (c)/1> (which may be substituted in the quinoline ring) (1) in an alkaline medium with a 1-naphthol-3-sulphonic acid containing a substituted amino group (e.g. arylamino or acylamino) in the 6- or 7-position; or (2) in an alkaline medium with a compound containing two residues of the type of (1) linked by a common amino group or by a bridge such as a urea or cyanuric residue, the second coupling position being occupied by the same or a different azo residue; or (3) in an acid medium with J acid, the product being coupled alkaline with a further diazo component.  The aminoazo compounds of the above formula are made by coupling diazotized 5-amino-2-nitrobenzoic acid or 5-amino-2-acylaminobenzoic acid with the appropriate quinolinol and converting the 2-substituent into an amino group.  The further diazo component in (3) may be a diazotized aniline-azo-salicylic acid.  The disazo and polyazo dyestuffs may be used on animal p  fibres such as wool, silk and leather.  Those derived from J acid and its derivatives are suitable for dyeing and printing cotton, linen and regenerated cellulose.  The dyestuffs may be metallized in the dyebath or on the fibre, e.g. by the methods of Specifications 455,274 and 619,969.  In the examples the following dyestuffs are prepared: (1) 8 - quinolinol \sM 5 - amino - 2 - nitro - benzoic acid (reduced) --> N - phenyl - J acid, N - p - anisyl - J acid, N - (p - acetylamino - benzoyl) - J acid or N - phenyl - g  - acid; 5 - amino - 2 - acetylaminobenzoic acid may also be used as diazo component, the acetylamino group being hydrolysed; (2) the monoazo intermediate of (1)-->(acid) J acid (alkaline)\sM cresidine\sM5-aminosalicylic acid; (3) the monoazo intermediate of (1)-->5 : 51-dihydroxy - 2 : 21 - dinaphthylamine - 7 : 71 - di - sulphonic acid\sMcresidine\sM5 - amino - salicylic acid; 8 : 81 - dihydroxy - 2 : 2 - di - naphthylamine-6 : 61-disulphonic acid or J acid urea may be used instead.  In a further example cotton is dyed reddish blue with the product of (1) from N-phenyl-J acid, coppered in the dyebath or on the fibre. 8-Quinolinol-7-sulphonic acid and N-benzoyl-g -acid are also specified as components.
Patent GB-772611-A (GB)
Title: Improvements in or relating to aerodynamic and like instruments
Inventor: SAUNDERS PETER SIDNEY
IPC: G01P13/02
Filed: 1954-05-25
Abstract: 772,611. Electric fluid-flow direction indicators. KELVIN & HUGHES, Ltd. May 17, 1955 [May 25, 1954], No. 15373/54. Class 40 (1). [Also in Groups XX and XXXIII] A device for detecting the direction of a fluid flow comprises a cylinder 11 having a hole 13 and slot 14 communicating with opposite sides of a skirted piston 12, the latter through a helical slot 23 in the skirt, so that if the piston moves as a result of a pressure difference between the pressures at the holes 13 and the slot intersection when the cylinder is located with its axis perpendicular to the direction of fluid flow, the slot intersection is moved circumferentially of the cylinder and relatively to the direction of fluid incidence to equalize the pressure difference by axial movement of the piston 12. In the form shown, the piston rod 15 moves in jewel bearings 16, 17. Rotation is prevented by a projection 20 engaging an axial slot 21. The piston rod carries a contact arm 24 moving over a resistance or inductance potentiometer 25. In a modification the piston has skirts on both sides and communication with each side is through crossing slots in skirt and cylinder.
Patent GB-536202-A (GB)
Title: Improvements in and relating to cups and handles therefor
IPC: A47G19/23
Filed: 1940-10-17
Abstract: 536,202. Cups. GREEN & CO., Ltd., T. G., and CROSS, A. J. Oct. 17, 1940, No. 15383. [Class 128] To facilitate the firing of cups in nested arrangement, and also to enable them to be more readily stored, a recess or opening 11 is afforded between an extension or projection provided at the lower part of the handle and the wall 12 of the cup.
Patent GB-751051-A (GB)
Title: Buckle
Inventor: ELSNER EDWIN CARL
IPC: A44B11/06
Filed: 1954-05-25
Abstract: 751,051. Buckles. GENERAL LOGISTICS. May 25, 1954, No. 15410/54. Class 43. A buckle for connecting together two strap ends comprises a frame to which one end is fastened and a cylindrical member spanning between two opposite frame sides and having means to deform, under tension, from the cylindrical form the bight portion of the other strap end, e.g. of nylon web, trained over the said cylindrical member and means to clamp releasably the free end of the trained-over portion to resist pull between said strap ends. As shown, one strap end 5 is looped over a roller 19 on a shaft 15 mounted between the frame sides 7. The other end 6, of pliable and readily deformable woven web is passed over a roller 18 and trained upwardly around a cylindrical member 9 provided with a set of peripheral grooves 22 separated by ribs 23 and non-rotationally secured in the sides 7 of the frame as by flat faces 26 in the reduced ends fitted into correspondingly-shaped holes in the sides 7. The free end 11 of the strap end 6 passes over and is clamped against a plate 17 spanning the sides 7, by the roughened cam face 28 of a lever 29 pivoted at 16 on the sides 7, the lever arm 29 terminating between the cylinder 9 and plate 17 so that tension on the strap 6 urges the lever arm upwards to bring down cam-face 28 into gripping engagement with the strap end 11 and the pliable web in the bight 10 is deformed inwardly into the grooves 22 creating a frictional resistance to slipping of the bight 10 and with increasing tension being drawn against the knurled bottoms 24 of the grooves 22 increasing further that frictional resistance. In another embodiment retractable projections are provided on the cylindrical member provided with a hollow core for entrance of a member for releasably holding the projections projected. In another embodiment the cylindrical member comprises a plurality of annular non-rotatable elements with peripheral serrations alternating with annular rotatable members encircled by resilient hoops and of the same overall diameter as the non-rotational elements.
Patent GB-950445-A (GB)
Title: Improvements in hydraulic fluids
IPC: C10M169/00
Filed: 1960-05-03
Abstract: An hydraulic fluid for automatic transmissions comprises (a) a paraffinic oil having a viscosity at 210 DEG  F. of at least 49 S.U.S. and at 0 DEG  F. of at most 7000 seconds, a flash point of 320 DEG  F. and a fire point of 350 DEG  F., and (b) less than 10%, preferably 1-3%, of a triaryl phosphate, suitably one containing a total of 18-30 carbon atoms and having a viscosity of about 90-1000 S.U.S. at 100 DEG  F.; the fluid being substantially free from halogenated phenols or other corrosive halogenated compounds.  (b) is most preferably a phosphoric acid ester of a cresylic acid or a mixture of phosphate esters which include phenyl as well as alkylphenyl groups, which mixture has a viscosity of 200-230 S.U.S. at 100 DEG  F.  The fluid may also contain oxidation inhibitors, e.g. tert.-butyl cresol, detergents, e.g. barium petroleum sulphonates, oiliness agents, e.g. sperm oil, and viscosity improvers, e.g. polymerized lauryl methacrylate. The fluids are said to exhibit reduced leakage from flexible seals of synthetic rubber.
Patent GB-1491764-A (GB)
Title: Transfer moulding insulation unit
IPC: B29C45/00
Filed: 1975-03-27
Abstract: 1491764 Thermal insulation plate UNIROYAL AG 27 March 1975 [29 April 1974 (2)] 15554/76 Divided out of 1491763 Heading B5A An apertured insulation unit 18 is disposed between a transfer moulding unit 10 and mould cavity 50 and includes an aperture 20 having a divergent portion 28 to compensate for slight misalignment with the corresponding sprue plate aperture 48 of the mould. The aperture may be lined with p.t.f.e. (Fig. 3), may have a cylindrical portion 32 and an upper divergent portion 34, 34A. The unit 18 may comprise a metal reinforcing plate 26, an insulation plate of asbestos/resin 18 and a liner 24 of asbestos/resin. The unit 18 may be provided with a blind recess for collection of gas during moulding (Fig. 4).
Patent GB-1194622-A (GB)
Title: A Method of Zone-Refining
Inventor: MELNIKOV MIKHAIL VASILIEVICH
IPC: C30B13/06
Filed: 1968-04-02
Abstract: 1,194,622. Zone-melting. M. V. MELNIKOV and A. K. KAKABADZE. 2 April, 1968, No. 15762/68. Heading B1S. The diameter of an already zone-melted ingot 1 is increased by forming an annular coating layer 2 on the ingot and passing an annular molten zone 3 through the annular layer and an adjoining annular portion of the ingot. A plurality of annular molten zones may be passed simultaneously. The process of coating and zone-melting may be repeated to build up the diamater of an ingot gradually. Coating may be by application of dispersed powder, vacuum spraying, electrolytic deposition, vacuum spraying, or winding.
Patent GB-422828-A (GB)
Title: Improvements in or relating to electric radiators or heaters and hot water or steam radiators or pipes
IPC: F24H3/00
Filed: 1934-05-28
Abstract: 422,828. Radiators for heating buildings; surface apparatus. WAUGH A. K., 18, Boreland Drive, Glasgow May 28, 1934, No. 15794. [Classes 64 (ii) and 64 (iii)] [See also Group XXXVI] In a horizontal tubular radiator the tubes are of rhombus cross section with the major diagona vertical.
Patent GB-439243-A (GB)
Title: An improved method of evacuating vessels, more particularly lamp bulbs
IPC: H01K3/22
Filed: 1934-05-28
Abstract: 439,243. Obtaining high vacua. ASTRON AKT.-GES., Krierns, near Lucerne, Switzerland, and TRENZEN, C., Venlo, Holland. May 28, 1934, No. 15847. Convention date, Dec. 4, 1933. [Class 8 (i)] [See also Group XI] A metal carbonyl is introduced into a partially evacuated lamp bulb or other vessel, and the vessel is heated, decomposing the carbonyl, which combines with residual gases and enables them to be extracted by the vacuum pump. The metal of the carbonyl may be deposited as a mirror in the vessel. Carbonyl of iron, nickel, molybdenum or tungsten, or a mixture of them may be employed. Phosphorus solution may be used in conjunction with the carbonyl as a getter. The lamp may have a double spiral filament forming a surface for the getter.
Patent GB-1236598-A (GB)
Title: Treatment of deep-drawing steel
Inventor: HUGHES IAN FRANK
IPC: C21D8/04
Filed: 1968-04-02
Abstract: 1,236,598. Heat-treating steel sheet; alloys. RICHARD THOMAS & BALDWINS Ltd. March 27, 1969 [April 2, 1968], No. 15855/68. Heading C7A. [Also in Divisions B3] Deep-drawing steel containing 0À01% to 0À1% carbon, 0 to 0À5% manganese, and 0À02% to 0À5% niobium is solution-treated at 900‹ to 1400‹ C., treated to precipitate niobium carbide as particles not exceeding 2000 Angstroms in average size, cold rolled and annealed. The desired particle size may be achieved by control of the cooling conditions after hot rolling (e.g. by finishing at 800‹-1000‹C., coiling at 400‹-800‹C. and cooling in the coil) or by cooling from the rolling temperature at such a rate that niobium carbide is retained in solution followed by reheating e.g. to 600‹ to 950‹C.
Patent GB-1424543-A (GB)
Title: Apparatus and method for refining magnesium
IPC: C22B26/22
Filed: 1973-04-03
Abstract: 1424543 Refining Mg and Mg alloys DOW CHEMICAL CO 3 April 1973 [4 April 1972] 15928/73 Heading BID [Also in Divisions C7 and F4] Magnesium and alloys thereof are melted and filtered through screen 20 under a protective atmosphere of gas delivered through 26. In Fig. 1 the filtered metal is received in vessel 11 and withdrawn by pump 18, an electric immersion heater or other heating means being provided in or outside vessel 11. Fig. 2 (not shown) illustrates a hollow screen 20 and Fig. 3 (not shown) an alternative hollow screen with side and floor openings in a vessel with oil or gas-fired heating.
Patent GB-822273-A (GB)
Title: Method of removing lead borate sealing glasses
IPC: C03C15/00
Filed: 1957-05-20
Abstract: Lead-borate sealing glass is removed from the edges of two glass parts sealed together therewith by immersion in a bath of 0.5N to 2.5N nitric acid, preferably at 70 DEG  to 80 DEG  C., whereby the lead borate glass is rapidly dissolved.  Tables and graphs are given showing the rate of solution against concentration and temperature. The acid bath is regularly topped up with water to compensate for evaporation, and when it is saturated with the nitrates formed it is cooled to room temperature, or below, whereupon most of the lead nitrate crystallizes or precipitates out.  Specifications 613,896 and 822,272, [both in Group XXIII], are referred to.
Patent GB-1030566-A (GB)
Title: Improvements in and relating to dithiocarbamic ester derivatives
IPC: C07C335/12
Filed: 1965-04-14
Abstract: A modification of the process of the parent Specification, wherein before or during the alkaline fission step, there is added a stoichiometric amount of a halogen compound which reacts with mercaptide groups present in undesired by-products to form thioethers, e.g. ethylene chlorhydrin, glycerol a -chlorhydrin, glycerol a ,g -dichlorhydrin, and salts of chloroethanesulphonic, chloropropanesulphonic and a -chlorinated aliphatic carboxylic acids.
Patent GB-502165-A (GB)
Title: Ball game device
IPC: A63F7/06
Filed: 1937-06-09
Abstract: 502,165. Table games. HASEMAN, W. June 9, 1937, No. 16055. Void. Convention date, Dec. 18, 1936. [Class 132 (ii)] A ball game device comprises a glass-topped casing 5 containing one or more rackets 22 journalled in the sides for universal manipulation from the outside. The game maybe in the form shown or in forms simulating cricket, tennis, or football, in which case two pairs of opposed rackets may be used. The device preferably comprises a known coin-freed device for withholding balls from play after a certain time interval.
Patent GB-141567-A (GB)
Title: Improvements in the lubrication of motor vehicles
IPC: B60R17/00
Filed: 1919-06-26
Abstract: 141,567. Guy, S. S. June 26, 1919. Capillary - action lubricating.-Certain hollow parts of the mechanism of a motor-vehicle, such as the tubular steering-rod and cross-bar, are utilized as reservoirs from which oil is conveyed to the bearing surfaces by wicks. Fig. 2 shows a steering cross-bar provided with a filling-opening 8 and with a wick 6 conveying oil to the bearing at its end. A felt ring 11<a> prevents leakage of oil. Fig. 4 shows a spring shackle having a hole 13 bored in one side plate 12 to form an oil chamber, from which ducts 15 plugged with wick lead to the surfaces of the pins 14. The chamber 13 may be kept full of oil by a supply pipe.