baber/WOPTO huggingface dataset:
Patent GB-612262-A (GB)
Title: Improvements in and relating to electric resistances
IPC: H01C10/32
Filed: 1946-05-22
Abstract: 612,262. Variable contact resistances. BAYLISS, H. E. May 22, 1946, No. 15468. [Class 37] A method of assembling a variable electric resistance, potentiometer or the like, comprises locating a flattened wire-wound resistance 13, as described in Specifications 566,950 and 566,971, in an annular, angular-section former 11, 12, with one edge of the resistance proud of the edge of the former, and subsequently clamping the resistance between soft strips of paper 14 and 15, or other suitable material, against at least one face of the former. The former comprises two upstanding rings 11 and 12 on a plate 10 of synthetic resinous material, the clamping being effected by a ring 17 of similar material, which is tapered as shown. A rigid strip 16 is interposed between the paper 15 and the ring 17. A rotatable contact arm 22 is provided. In one modification, the inner ring 12 or the outer ring 11 is dispensed with, the clamping being carried out as before, while in a second embodiment, the former is aluminium and channel-shaped, the rigid ring 16 and clamping ring 17 not being used. The clamping in this case is effected by collapsing the walls of the former inwards to grip the resistance, suitable insulation being provided.
Patent GB-954009-A (GB)
Title: Clamping device
Inventor: DICK THOMAS RODGERS
IPC: B30B1/00
Filed: 1959-05-07
Abstract: 954,009. Welding by fusion. VACUUM INDUSTRIAL APPLICATIONS Ltd. May 9, 1960 [May 7, 1959; May 14, 1959], Nos. 15673/59 and 16552/59. Heading B3R. [Also in Division E2] A device for holding a stiffening member in contact with a plate during tack-welding comprises two sucker pads 3 joined by a frame consisting of side members 2 and a bridge piece 1 upon which is mounted between the sucker pads a jack 4, 5. There is a vacuum line 7 with control valve 8 for the sucker pads and a fluid pressure line 9 for the jack. The device as shown is intended for use on vertical or overhead surfaces. Another embodiment intended for use on horizontal surfaces and comprising a transportable wheeled frame carrying sucker pads, jack, vacuum and fluid pressure pumps and their driving motor, is described with reference to Figs. 2, 3 and 4 (not shown).
Patent GB-1378119-A (GB)
Title: Process for the manufacture of monovinylacetylene
IPC: H01F10/06
Filed: 1973-04-02
Abstract: 1378119 Dimerisation catalysts KNAPSACK AG 2 April 1973 [27 April 1972 14 Oct 1972 (2)] 15719/73 Heading BIE [Also in Division C5] A catalyst for dimerising acetylene comprises an aqueous solution of HCl, CuCl and an alkali metal salt of a compound having at least one acid and at least one basic nitrogencontaining group. Suitable third components are alkali metal salts of nitrilo triacetic acid, ethylene diamine tetracetic acid, taurine, glycine, α or #-alanine and aminobenzoic acid. An immiscible aromatic solvent containing at least 40% indons may be dispersed in the solution to form a homogeneous catalyst emulsion.
Patent GB-591863-A (GB)
Title: Improvements in or relating to the production of vinylidene chloride copolymers
IPC: C08F214/08
Filed: 1944-08-18
Abstract: Copolymers are made by subjecting a mixture of (a) vinylidene chloride, (b) isobutene and (c) a functional derivative of acrylic acid or of an a -substituted acrylic acid, a vinyl ester or an alkyl vinyl ketone to the action of heat and/or actinic light in the presence of one or more catalytic per-compounds, e.g. crotonyl peroxide and ammonium persulphate.  Compounds specified are acrylonitrile, methacrylonitrile, ethyl acrylate, methyl methacrylate, ethyl and butyl a -chloroacrylates, vinyl acetate, methyl vinyl ketone and methyl isopropenyl ketone.  The polymerization may be conducted in aqueous emulsion.  There may also be present sodium sulphite, glacial acetic acid and the sodium salt of sulphated lauryl alcohol.  Plasticizers, e.g. tricresyl phosphate may be incorporated in the copolymer, which may be extruded into threads which may be stretched whilst hot. Specifications 532,697, 570,711, and 590,322 are referred to.  Reference has been directed by the Comptroller to Specification 570,711.
Patent GB-405640-A (GB)
Title: Improvements relating to electric discharge devices and the use thereof
IPC: H01J61/16
Filed: 1932-06-04
Abstract: 405,640. Discharge apparatus. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., Caxton House, Tothill Street, London, ALDINGTON, J. N., and OAKLEY, P. D., c/o Siemens Electric Lamps & Supplies, Ltd., Dock Road, Preston. June 4, 1932, No. 15821. Drawings to Specification. [Class 39 (i).] A cathode glow discharge tube having only two electrodes, without the presence of an alkali metal or alkaline earth metal, and adapted for use with electric regulating devices, has a filling of neon with or without traces of other gases and concentric electrodes with their active faces adjacent giving a normal glow, the product of the gas pressure and electrode spacing being not less than that value which gives the minimum striking voltage. The spacing of the electrodes lies between 0.25 and 0.7 cms., and the gas pressure between 15 and 40 mm., the preferred pressure being 20-25 mm. Commercially pure neon (containing 0.5 per cent helium) may be employed. Before assembly the electrodes, which are of iron or nickel, are treated in pure hydrogen for fifteen minutes at 1000‹ C. and the tube is subjected to a cold exhaust. An ageing treatment comprises one hour on continuous-current of 50 m.a. followed by 75 hours on unsmoothed rectified current at 220 volts a.c. using a series resistance of 4000 ohms. The cathode fall is reduced to about 95 volts by the above processes. According to the Provisional Specification, a filling of neon saturated with mercury vapour is employed, the electrode spacing being 1-2 mm. and gas pressure 15 mm. Further dimensions comprising pressures of 20 mm. and 40 mm. with an electrode spacing of 7 mm are given. Dimensions of the electrodes themselves and of the tube are also stated.
Patent GB-357563-A (GB)
Title: Improvements in or relating to the stowage of spare wheels on motor road vehicles
IPC: B62D43/08
Filed: 1930-05-22
Abstract: 357,563. Doors for passenger vehicles. BURNEY, SIR C. D., 8, Broadway, Westminster. May 22, 1930, No. 15829. [Class 103 (ii).] One or more of the doors A of a motor vehicle has attached to its lower portion a metal casing a<1> forming a compartment a2 in which a spare wheel or tyre a<3> is accommodated, and to which access is obtained from the outside of the vehicle by means of a removable or hinged panel B. Specification 320,725, [Class 108 (i), Road vehicles, Body details &c. of], is referred to.
Patent GB-820262-A (GB)
Title: Improved rubber derivatives and the manufacture thereof
Inventor: CUNNEEN JOHN IVAN
IPC: C08K5/37
Filed: 1954-08-27
Abstract: A method of manufacturing rubber derivatives of high durability and crystallization resistance at low temperature includes the step of adding to stabilized latex a small proportion of a substance containing a thiol acid group.  The stabilized latex is preferably acidified with mineral acid and the substance containing the thiol acid group added in the presence of a peroxide or hydroperoxide catalyst, e.g. ascoridole, in benzene or in an aqueous emulsion of benzene, the mixture being heated to 60 DEG  C. for about 5 hours. The rubber derivative may then be obtained by coagulation of the treated latex by pouring into polar solvents such as ethanol, industrial methylated spirits, methanol, or acetone, or into solutions of substances able to precipitate the stabilizer, e.g. tannic acid or polymethacrylic acid.  The stabilizer may comprise a condensation product of a long-chain amine, e.g. stearylamine, and ethylene oxide.  Specification 599,202, [Group V], is referred to.
Patent GB-559737-A (GB)
Title: Radial-type engines or pumps
IPC: F01B1/06
Filed: 1942-11-11
Abstract: 559,737. Reciprocating pumps. ROTHERHAM, K., and SWAIN, F. E. Nov. 11, 1942, No. 15913. [Class 102 (i)] [Also in Groups XXVII, XXIV and XXVI] The axes of the pistons 12 and cylinders 11 of a pump are disposed radially from, and in a plane at right angles to, a Z-type crankshaft to which the pistons are connected by links 13 pivoted to central lugs 14 on a sleeve 15 journalled on the inclined portion 16 of the crankshaft, the arrangement giving two complete reciprocations of each piston for each revolution of the crankshaft. As shown, the cylinders are opposed to one another but they may be set at 90 degrees. Each cylinder may be replaced by a bank of cylinders.
Patent GB-310688-A (GB)
Title: Improved process for improving the spinning properties of cotton
IPC: D01H13/30
Filed: 1928-05-31
Abstract: 310,688. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 31, 1928. Fibres, treating. -The spinning properties of cotton are improved and the humidification of the spinning room rendered unnecessary by treating the cotton with aqueous solutions having high wetting properties in conjunction when required with other suitable substances such as hygroscopic agents or organic solvents. Suitable substances are the sulphonic acids or salts thereof of aliphatic, aromatic, hydro-aromatic, or heterocyclic compounds containing at least 5 carbon atoms in the molecule, which substances may contain halogen, hydroxyl, nitro, amino, alkyl, aralkyl, or aryl groups or hydro-aromatic radicles or several of them as substituents. As examples, the aldehyde condensation products resulting from the action of n or isopropyl alcohol, n or isobutyl alcohol, cyclohexanol, or other alcohols on naphthalene sulphonic acids are suitable. Also, sulphonic acids or their salts in which alkyl or other groups effect a bridging combination of a plurality of hydrocarbon radicles such as diamylnaphthylamine sulphonic acid, diethylmetanilic acid, the salts thereof, the products obtained by the action of alkyl or aryl chlorides on naphthols, for example #-naphthol, propyl, butyl or amyl ether, followed by sulphonation, or true sulphonic acids or fatting acid arylides and their salts, such. as sodium stearanilido sulphonate, true sulphonic acids of free fatty acids such as of olein and the like which can be obtained for example by treating aliphatic and hydroaromatic carboxylic acids containing more than 8 carbon atoms in the molecule with a sulphonating agent under energetic conditions and, if desired, in the presence of a diluting medium which is not sulphonated, or in the presence of a catalyst or of both. Free sulphonic acids may be used, but the solid watersoluble salts thereof will be preferred. The action may be further intensified by an addition of mono- or poly-hydric alcohols such as glycerol, of polyglycol ethers, ketones, and the like and other organic solvents which are not soluble in water. Water soluble oils, soaps and the like may also be added. The application can be effected at any desired stage of the spinning process. In examples described, Egyptian cotton is treated with the sodium salt of butylated naphthalene sulphonic acid, condenser yarn with a mixture of the sodium salts of the sulphonic acid of ricinoleic acid and of dibutylnaphthalene sulphonic acid respectively, and American cotton with a mixture of the sodium sulphonate of oleic acid soap, and glycerol.
Patent GB-517418-A (GB)
Title: Improvements relating to bearings
IPC: F16C19/54
Filed: 1938-05-28
Abstract: 517,418. Thrust bearings. SEAMARK, L. M. C. May 28, 1938, No. 16019. '[Class 12(i)] To distribute the load evenly between bearings each bearing or set of bearings d, d<1>, e, Fig. 2, or d, e, Fig. 4, has its separate thrust block b, b<1>, c, Fig. 2, supported against the load so as to be capable of independent movement by a pressure resiliently supplied. The support may take the form of a rubber pad, or hydraulic means or the two combined. Fig. 4 shows pistons k, l and washers p between the bearings and the liquid under pressure.
Patent GB-1354355-A (GB)
Title: Low water-sensitive hydraulic fluids containing borate esters and formals
IPC: C07F5/04
Filed: 1971-05-20
Abstract: 1354355 Hydraulic fluid compositions OLIN CORP 20 May 1971 [12 April 1971] 16044/71 Heading C5F An hydraulic fluid composition comprises (A) from 20-96% by weight, based on the total composition of one or more borate esters of the formulae: [R<SP>1</SP>(OR<SP>a</SP>) y O] 3 B where R<SP>1</SP> is C 1 -C 4  alkyl; R<SP>a</SP> is C 2 -C 4  alkylene; and y is 2, 3, or 4; or [R<SP>1</SP>(OCH 2 CHR<SP>2</SP>) m -(OCH 2 CHR<SP>3</SP>) n O] 3 B where R<SP>1</SP> is C 1 -C 4  alkyl; one of R<SP>2</SP> and R<SP>3</SP> is hydrogen and the other methyl; and m and n are integers whose sum within each oxyalkylene chain is from 2-20; or [R<SP>1</SP>(R<SP>g</SP>)O] 3 B where R<SP>1</SP> is C 1 -C 4  alkyl; R<SP>g</SP> is a heteric oxyalkylene chain of the formula [-(OCH 2 CH 2 ) r (OCH 2 CHCH 3 ) s -] where r and s are integers whose sum within each oxyalkylene chain is not more than 20 and wherein the weight percent of oxyethylene units within each chain is at least 20 based on the total weight of the chain; or where R<SP>4</SP>, R<SP>5</SP>, R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP> and R<SP>9</SP> are each H or CH 3 ; T 1 , T 2  and T 3  are each C 1 -C 4  alkyl; and m and n are integers, whose sum within each oxyalkylene chain is 2-20 with the proviso that in no more than two of the chains is the sum of m and n the same; (B) from 2-40% by weight, based on the total composition, of one or more bis-(glycol ether) formals of the formula: [R<SP>b</SP>O(R<SP>a</SP>O) x ] 2 CH 2  where R<SP>b</SP> is C 1 -C 6  alkyl; R<SP>a</SP> is C 2 -C 4  alkylene; and x is an integer of from 1-5; and (C) from 0-78% by weight, based on the total composition of one or more diluents selected from (i) glycol ethers and diethers of the formula R[OR<SP>11</SP>] y OR<SP>1</SP> where R is C 1 -C 4  alkyl; R<SP>1</SP> is H or C 1 -C 4  alkyl; R<SP>11</SP> is C 2 -C 4  alkylene; and y is 2, 3 or 4; (ii) glycols and polyglycols having a molecular weight of from 60-450; and (iii) saturated aliphatic monohydric alcohols having from 6-13 carbon atoms. The composition suitably also includes 0À2-6% by weight of corrosion inhibitor and 0À001-1% by weight of antioxidant. Many examples of each of the above classes of compound are specified.
Patent GB-904569-A (GB)
Title: A method of concentrating compounds of uranium
IPC: C22B60/02
Filed: 1960-05-06
Abstract: Uranium values are recovered from solutions containing mineral acids in an organic solvent by adsorption at anion-exchangers. The organic solvent may be an alcohol, preferably a primary aliphatic alcohol such as ethyl alcohol, a ketone such as acetone, an ether such as ethyl ether, or an ester such as ethyl acetate. A suitable anion exchange resin is "Dowex 1" (Registered Trade Mark).  Mineral acids mentioned are sulphuric acid, hydrochloric acid, and nitric acid.  If a hydrochloric acid solution is employed, any titanium, zirconium or thorium values remain in solution.
Patent GB-661726-A (GB)
Title: Improvements in or relating to combs
IPC: A45D24/02
Filed: 1949-06-16
Abstract: 661,726. Combs. WALKER, J. S., and ERASER & GLASS, Ltd. April 3, 1950. [June 16, 1949] No. 16084/49. Class 131. The back 2 of a comb is provided with a groove 4, in which an insert 5 is cemented, to form a longitudinal aperture 6 which receives a perfumed rod or strip 9, provided with a plug 8 which closes one end of the longitudinal aperture, the lower end being closed by a projection, such as the handle 7, on the comb. Apertures 10 extend from the bottom of the groove or the sides of the aperture 6 to the roots of the teeth.
Patent GB-1133109-A (GB)
Title: Improvements in or relating to tunnelling machines
Inventor: PENTITH GERALD RICHARD OLDHAM
IPC: E21D9/10
Filed: 1966-04-13
Abstract: 1,133,109. Mineral-mining machines. GREENSIDE MACHINE CO., Ltd. 4 April, 1967 [13 April, 1966; 20 July, 1966], Nos. 16100/66 and 32497/66. Heading E1F. In a heading machine, a rotary cutter drum 16 is mounted on a carrier 14 slidable along an arm 12 extending radially of an axially advanceable torque tube 11 that is so mounted in a frame 1 supported on the floor of a heading that it may be rotated about its axis in the -frame so that the drum may remove material from-ahead of the machine over 360‹ about the axis of rotation of the tube.
Patent GB-918425-A (GB)
Title: Voltage sensitive semiconductor capacitor
IPC: H01L23/10
Filed: 1959-05-11
Abstract: 918,425. Semi-conductor devices. PACIFIC SEMICONDUCTORS Inc. May 11, 1959 [May 23, 1958], No. 16107/59. Class 37. A voltage-sensitive capacitor consists of a semiconductor body 10a with an alloyed region which decreases in diameter towards the interior of the region, a regrown region of opposite conductivity type from the body being formed at the interface, the arrangement being that the remaining base region thickness is less than the radius of the alloyed region at the top of the semi-conductor. The first step in production is an ohmic back contact. A silicon body 10a (Fig. 1) of about 1¢ inches diameter formed from a single crystal and having a resistivity in the range from 0.1 to 1.5 ohm centimetres is selected. The wafer is then lapped or etched in known manner to reduce the wafer thickness to 15 mils. The surface 13 of the wafer is then wet-lapped with a 600-mesh abrasive to roughen the etched surface. A 99% gold, 1 % antimony foil is then placed on the lapped wafer which is itself positioned on a lavite plate 20. A second lavite plate 22 and a weight 23 are then placed on the gold foil and the whole is then placed in an atmosphere of 85% nitrogen, 15% hydrogen heated to 450 C. as quickly as possible, held in equilibrium five minutes, cooled at not more than 12 C. per minute until 200 C. is reached and then cooled at room temperature. Body member 10a, Fig. 2, is then diced from silicon wafer 10. The body is a cylinder of diameter 0.042 inches and thickness 0.015 plus or minus 0.002 inch. The PN junction is formed by alloying a small quantity of aluminium from a wire about 10 mils. in diameter and heating the body to about 150 C. The aluminium alloys with the silicon and upon cooling produces the frustoconical shape shown with a re-grown P-type conducting region 12. The top diameter D 1  is 10 to 30 mils. while D 2  is 6 mils.  3 mils. The thickness wb is between 1 and 5 mils. A solution of one part nitric, one part hydrochloric acid will etch the outside silicon to the slope shown in Fig. 3, reducing the capacity of the device. Fig. 4 shows the device encapsulated in a central glass cylinder to which are sealed metal tubes 26, 27 in which are metal pins 30, 31, and spot-welded electrodes 32, 33.
Patent GB-443557-A (GB)
Title: Improvements in or relating to hermetically sealed receptacles for tobacco, foodstuffs and the like
IPC: B65D51/16
Filed: 1934-05-30
Abstract: 443,557. Vacuum tins. BENNETT, G. H., 43, Wish Road, Hove, Sussex. May 30, 1934, Nos. 16164 and 29489. [Class 125 (iii)] A tin &c. 1 which is sealed in vacuo, has a plug in the vent-hole having a tapered shank 6 and a circular head 5. The plug is formed of resilient material and is contracted at 4 on being pulled through the vent-hole and is self retentive. Anchoring devices may be provided in the shanks of the plugs to prevent their complete removal when breaking the vacuum.
Patent GB-111137-A (GB)
Title: Apparatus for Propelling and Steering Vessels and for Protecting them against Mines and other Floating Bodies.
Inventor: MOISEEFF DMITRI
IPC: B63G9/00
Filed: 1916-11-10
Abstract: 111,137. Moiseeff, D. Nov. 10, 1916 Torpedo screens.-Jets of compressed air are used in special apparatus fitted to the bow of a ship for propelling and steering and for diverting mines and torpedoes. A pipe 1 supplied with compressed air has a number of inclined nozzles 3 on each side. A vertical pipe 5 which can be oscillated by the handle 6 communicates with the pipe 1 and has an inclined delivery nozzle 7. Ceeks 4 regulate the supply of compressed air.
Patent GB-1511373-A (GB)
Title: Telemetry system
IPC: H04J7/00
Filed: 1975-04-18
Abstract: 1511373 Multiplexing SHARETREE Ltd 18 April 1975 16208/75 Heading H4M A transmitter 1, e.g. for use in a pipe line telemetry system for transmitting data signals representing values of various parameters, which values are conveyed by the amplitudes of respective input signals to the transmitter, comprises a plurality of channels 11, 12, 13 operable to produce respective A.C. signals at respective frequencies and having durations representing the values of the respective parameters, e.g. voltages V1, V2, V3 associated with the corrosion protection system with the pipe-line; and data signal producing means 2 for transferring the A.C. signals to a common output channel, e.g. by frequency modulation, so that the said A.C. signals constitute the data signals. An address channel 14 produces, in response to an interrogation signal, a series pattern of A.C. signals of equal duration representing the address of the transmitter, and these signals are transmitted together with the data signals. A decoder 3 for processing the signals, which may be recorded on magnetic tape, comprises a plurality of channels 31, 32, 33, 34 responsive to respective ones of the A.C. signals to produce respective count values related to the duration of the A.C. signals associated with the channels, which count values correspond to the values of the original parameters. Suitable circuit arrangements for the transmitter and the decoder are described with reference to Figs. 2 to 7 (not shown).
Patent GB-370251-A (GB)
Title: Improvements in auto-collimating reflectors
IPC: G02B5/126
Filed: 1931-06-04
Abstract: 370,251. Reflectors. GARBARINI, A., 23, Rue de Colombes, Courbevoie, Seine, France. June 4, 1931, No. 16301. Convention date, June 3, 1930. [Class 97 (i).] An auto-collimating reflecting signal &c. consists of one or more elements each having a convex lenticular part 1 to receive the incident light and a concave reflecting part 2, the part 1 being circular in plan while the part 2 is not circular but has its greatest dimension in the direction in which the maximum field of illumination is desired, the mean dimension at right-angles to the said dimension being equal to one-half the diameter of the part 1. This construction enables the elements to be mounted on a plate &c. with the lens parts 1 practically touching. The section of the part 2 may be rectangular, Figs. 7 and 8, or diamond shaped, Fig. 14, or polygonal, Fig. 15. The lens parts 1 may be made square in plan so that when a number of the elements are mounted on a plate &c. the said parts completely cover the plate.
Patent GB-412405-A (GB)
Title: Improvements in a chuck or carrier for internal and external gripping of cylindrical hollow bodies
IPC: B23B31/12
Filed: 1933-06-06
Abstract: 412,405. Free - wheel clutches. BRUCK, S., 11, Marburgerstrasse, Berlin. June 6, 1933, No 16307. Addition to 394,792. [Class 80 (ii).] The members a of the clutch described in the parent Specification are provided with external-gripping jaws m.