baber/WOPTO huggingface dataset:
Patent GB-387159-A (GB)
Title: Improvements relating to multi-colour light-filters for use with lenticular films
IPC: G03B33/10
Filed: 1932-03-11
Abstract: 387,159. Filters for colour photography. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. March 11, 1932, No. 7378. Convention date, March 11, 1931. [Class 98 (ii).] A parallel - -band colour - selecting filter for use in the lenticular-screen process of colour photography is fitted with a mask so shaped that the relative proportions of the effective areas of the colour bands are not altered by concentric stopping of the objective, as with an iris diaphragm. Fig. 1 shows a tricolour filter having blue and red outer bands and a central green band which is partially covered by a mask (shown shaded), the outline of which is so determined that the relative proportions of the three effective colour areas, b2, g2 + g3, and r2 when the objective is stopped down to any diameter D2, D2, are the same as those of the corresponding three areas b1 + b2, g1 + g2 + 93 + 94, and r1 + r2 at full aperture D1, D,. In a modification, all three bands are partially masked, the outlines of the masks being so chosen that the optical centres of the two outer filter bands are not displaced laterally by concentric stopping. The invention is applicable to filters having more than three colour bands.
Patent GB-521530-A (GB)
Title: Improvements in or relating to paper cartons or containers
IPC: B65D5/06
Filed: 1939-03-07
Abstract: 521,530. Paper r cartons. JAGENBERGWERKE AKT.-GES. March 7, 1939, No. 7388. Convention date, March 7, 1938. [Class 66] The parts adapted to be folded to afford the bellows-form mouth closure of a paper carton are of unequal heights, the closure being completed by folding the sections RT, WS, Fig. 4, over the lowermost one, sections RX, SZ over these, and finally the highest section XYZ over the others, as shown in Fig. 8. The folded closure may be held in closed position by means of a metal or other clip, or in the case of cartons impregnated with wax &c, the closure may be sealed by the application of heat and pressure to the folds, which may be pressed to form lateral corrugations. As shown in Fig. 2, the blanks to form the cartons may be cut with little waste from a paper web.
Patent GB-1338735-A (GB)
Title: Stabilised metal film resistors
IPC: H01B1/00
Filed: 1972-02-17
Abstract: 1338735 Ni/Cr/Al alloys PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Feb 1972 [20 Feb 1971] 7408/72 Heading C7A [Also in Division H1] A stabilized film resistor is formed using an alloy of nickel, chromium and aluminium, mixed in the per cent parts by weight of Nickel: 15-55, chromium: 10-68 and aluminium 2-60. The resistor film may be deposited on a substrate using conventional techniques e.g. by flash evaporation in which small quantities of the alloy are successively placed on a hot evaporation source or by cathodic sputtering. When the film has been deposited, the resistor is stabilized by heating it in an oxygen containing atmosphere such as air at 300-350‹C. for 4 hours.
Patent GB-157049-A (GB)
Title: Improved apparatus for actuating by means of an auxiliary engine, devices such as the rudders of aeroplanes, ships and the like
IPC: B64C13/00
Filed: 1920-03-12
Abstract: 157,049. Schneider, J. J. M. A. E. Jan. 13, 1920, [Convention date]. Steering-gear.-A control device, applicable to marine steering gear or the like, is connected to the rudder or other surface to be moved, and is adapted to be operated by hand through mechanism which, when the resistance offered to hand actuation exceeds a predetermined amount, automatically brings into action an auxiliary engine, which continues the actuation of the control surface but remains subject to the hand control. The control device A, such as a rudder post, is coupled to a piston B so as to receive angular motion by levers H, connecting' rods G, trunnions b<2> and a socket B<2> which is fixed to a tubular piston rod B<1>. A control lever D, which is loose on the post A, is coupled to a tubular slide-valve E by a connecting-rod I and a, fork J which is adjustably fixed to the extension K of the rod E'. Springs F, F<1> are interposed between a partition B<3> and the fork J and a shoulder K<2> on the rod E<1>. At rest, the parts occupy the position shown in Figs. 2 and 7, and the two sides of the piston communicate with the exhaust-the left-hand side through apertures P, e<1>, e', and the right-hand side through apertures P<1> and e<3>, passage e<4>, and an aperture m<3>. If the control lever D is moved towards the right, it first turns idly round the post A tending to compress the spring F. If the resistance of the device which is coupled to the piston rod B<1> is less than the force required to compress the spring, the piston and the slide valve will move together and the control be effected without the consumption of motive fluid. If the resistance coupled to the piston rod B<1> is greater than the force required to compress the spring. the slide-valve moves relatively to the piston and the parts come into the position shown in Fig. 8; motive fluid then enters the cylinder by way of the ports n, m, m<1>, e, O and forces the piston to the right, the right-hand side of the piston being connected to the exhaust by way of the ports and passages P<1>, e<3>, e<4>, m<3>. On account of the double wire-drawing at the ports, the chance of leakage is very small, and, if the supply of motive fluid is cut off, the shaft A can still be actuated by hand.
Patent GB-122572-A (GB)
Title: Improvements in Whistles.
Inventor: COURCY ALFRED DE
IPC: G10K5/00
Filed: 1918-05-04
Abstract: 122,572. Courcy, A. de. May 4, 1918. Whistles. - In whistles of the kind having the underside 2 of the mouthpiece and the drum periphery 3 made from one blank and the upper side 9 of the mouthpiece and the drum ends 6 made from another, the drum periphery is made with flanges 5 and the mouthpiece parts 2, 9 with flanges 4 and 10 to produce double side walls- The front end of the upper part 9 may be formed with small projections on the flanges which are bent to engage underneath the lower part 2. The parts when assembled are soldered together. An attachment device 12 formed from a strip of metal bent to a U shape is secured in slots in the drum periphery.
Patent GB-249544-A (GB)
Title: Process for the rust-protection of metallic objects which are subjected to high temperatures in an oxidising environment
IPC: C23C4/08
Filed: 1926-03-18
Abstract: 249,544. Soc. Nouvelle de Metallisation. March 18, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Coating. - A process for rust-proofing metal articles, such as articles of iron or steel, by means of a metal such as aluminium, comprise the application of the coating-metal by a spraying process, treatment of the coated article with a solution such as of sodium carbonate, and the subsequent heating of the article to effect alloying of the metals.
Patent GB-1424997-A (GB)
Title: Explosive slurry composition
IPC: C06B47/14
Filed: 1974-02-19
Abstract: 1424997 Explosive compositions GELAN KK 19 Feb 1974 [24 July 1973 (2)] 7594/74 Heading C1D An aqueous slurry explosive composition comprises an oxidizer and a gel formed from sodium montmorillonite and a water-soluble organic compound containing a polar group. Suitable organic compounds are urea, guanidine nitrate and carbonate, water-soluble urea-formaldehyde resin, ethylamine, diethylamine, p-phenylene diamine, formamide, glycine, alanine methyl ester, valine, glutamic acid, albumin, lactoalbumin, casein, gelatine, pyridine, piperidine, piperazine, pyridazine, carboxymethyl cellulose, carboxyethyl cellulose, ethylene glycol, glycerine, polyvinyl alcohol, and sodium and ammonium lignosulphonate. The gel may be prepared by mixing powdered bentonite with water, removing silt, concentrating the sol., and mixing with the polar compound; alternatively, the polar compound may be added to the sol. before concentration. The oxidizer may be ammonium nitrate, ammonium perchlorate, or a mixture of ammonium nitrate and sodium nitrate. Aluminium powder may be included as a sensitizer, and urea, sucrose, fructose, or fuel oil as a fuel; acetamide, acrylamide, or ethylamine may be added as a dispersing agent for fuel oil. Ions of humic acid, lignosulphonic acid, or tannic acid may act as peptizing agents. Buffer agents and viscosity adjusting agents may also be added. The explosive compositions are thixotropic and are not subject to sedimentation on storage; the gel includes gaseous microbubbles which assist detonation.
Patent GB-678657-A (GB)
Title: An improved ring balance gauge
IPC: G01L7/24
Filed: 1951-04-02
Abstract: 678,657. Pressure gauges. LANDIS & GYR AKT.-GES. April 2, 1951 [April 14, 1950], No. 7603/51. Class 106 (ii). A ring balance with known square root cam and roller for obtaining a uniform scale is characterized in that a counterweight is suspended from the ring by means of a rod in such a manner that on movement away from zero position the counterweight is first raised with its rod forming a pendulous lever arm action and then by striking of the arm against a fixed abutment on the ring the counterweight and arm acts as a rigid structure with the characteristics of a ring balance with fixed counterweight. Fig. 1 shows a ring balance with partition T to the opposite sides of which pressures P1, P2 are applied. The ring is pivoted at its centre and the square root cam is shown at C with roller F coupled to an indicating arrangement E. A counterweight G is suspended from a rod H pivoted at B, and a fixed abutment A is also provided as shown. When the gauge moves in the direction of the arrow the pendulum weight G pivots about B until the fixed abutment is reached, thus altering the turning moment. Fig. 2 shows the two stages of the action in graph II in which the turning moment in the first portion of the movement is D=G-r-sin α and in the second portion D=G-R-sin α where D is the counter turning moment, G the counterweight r or R the effective radius and α the angle through which the ring balance is turned. From the graph it appears that in the first portion of the range to be measured, comparatively large angles of turning are available permitting the extension of measurement to small pressure differentials #p, or Q per cent, Q being the quantity being measured, which is proportional to the square root of #p.
Patent GB-639700-A (GB)
Title: Jacket tooth crowns and the production thereof
IPC: A61C5/73
Filed: 1948-03-12
Abstract: 639,700. Artificial teeth. KARPATI, A. March 12, 1948, No. 7616. Convention date, Aug: 28, 1947. [Class 81(ii)] A tooth crown made of synthetic resin comprises a pre-formed thin outer jacket a and an internal filling b. The jacket is filled with the material b and then pressed down on to the tooth root c to make it conform to the shape thereof. The resulting crown is then removed and' the two parts fused together and hardened by heat treatment, after which it is re-fitted to the root.
Patent GB-736540-A (GB)
Title: A method for improving the structure of soil and compositions for use therein
Filed: 1953-03-20
Abstract: A composition for improving the structure of soil comprises a substantially dry pulverulent mixture of an alkaline earth metal oxide, hydroxide, or carbonate, and a substantially water-insoluble pulverulent homopolymer of acrylonitrile or an alpha-substituted acrylonitrile, or a copolymer of either with one or more vinylidene compounds, such as styrene, the copolymer containing at least 25 mol. per cent of the nitrile.  The composition may contain as an additional ingredient a non-phytotoxic alkali metal salt of a weak or easily displaced acid, such as carbonic, metaphosphoric, acetic, butyric, or maleic acid.ALSO:The structure of surface soil is improved by adding thereto a water-insoluble pulverulent homopolymer of acrylonitrile or of an alpha-substituted acrylonitrile, or of a copolymer of either with one or more vinylidene compounds, e.g. styrene, the copolymer containing at least 25 mol per cent of the nitrile.  There may also be added to the soil an alkaline earth metal oxide, hydroxide, or carbonate, and/or a non-phytotoxic alkali metal salt of a weak acid, such as the lithium, sodium, potassium, rubidium and caesium salts of carbonic, metaphosphoric, acetic, butyric and maleic acids.  The addition of the nitrile polymer also exerts a fertilizing action on the soil by the slow liberation of ammonia as a source of plant nitrogen.  In addition, soil erosion is controlled by the improvement in the drainage of the soil.
Patent GB-936974-A (GB)
Title: An improved method of siliconising a vitreous surface
IPC: C03C17/30
Filed: 1960-03-04
Abstract: Vitreous surfaces are siliconized by coating them with a composition containing organosilyl esters of the general formula R4-nSi(OOCR1)n, where R is a monovalent hydrocarbon radical, R1 is a saturated hydrocarbon radical, and n is 2 or 3, and causing polymerization of silicone on the surface by exposing it to moist air, which may be at ambient temperature.  The composition may comprise a mixture of organosilyl di- and tri-esters, and other organosilicon derivatives, having a higher rate of hydrolysis, e.g. organohalogenosiloxanes may be included.  The compositions may be applied as a vapour, an aerosol or a solution in an inert solvent. In examples, methylsilylacetic esters are prepared by reacting a mixture of methyltrichlorosilane and methyldichlorosilane with glacial acetic acid, in the presence of a trace of water, or with acetic anhydride, and applied in the form of an aerosol to glass insulators, which are then exposed to ambient air at 18 DEG C. and 70% relative humidity.
Patent GB-636129-A (GB)
Title: Improvements in or relating to alternating current electrical instruments and electro-magnets therefor
IPC: G01R11/36
Filed: 1947-03-21
Abstract: 636,129. Supply meters. ARON ELECTRICITY METER, Ltd., and RIORDAN, E. J. March 21, 1947, No. 7852. [Class 37] The error/load curve, Fig. 4 (not shown), of an induction meter is reduced according to provision of a L-shaped magnetic shunt 12 which is so mounted, Fig. 2, as to extend across the poles 7 and into cut-away portions 11 of the series magnet core 8. The shunt 12 is separated from the core 8 by a single non- magnetic distance piece 13 or by the latter and an intervening non-magnetic strip 14. As shown, Fig. 2, the horizontal limb 12a of the shunt 12 extends into the cut-away portion 11 and the vertical limb 12b extends downwardly parallel with the side faces of the poles 7. The series magnet core 8 is so mounted in the electromagnet assembly, Fig. 1 (not shown), that the cut-away side 10, Fig. 3, is remote from the disc spindle. Specification 353,561 is referred to.
Patent GB-580064-A (GB)
Title: Improvements in or relating to blowers of the roots and similar type
IPC: F04C29/04
Filed: 1944-04-27
Abstract: 580,064. Roots blowers. GODFREY & PARTNERS, Ltd., SIR G., and THEED, W. D. L. April 27, 1944, No. 7868. [Class 110 (ii)] The blower rotors A are provided with axial passages B, D through which cooling fluid is forced, or sucked by external means, and may also have an internal worm L or vanes A to assist motion of the fluid. Passages E, C<2> are provided in each rotor. The rotors may be. built up of laminations of sheet metal stampings. An oil slinger ring which prevents oil passing along the shaft, may have vanes and assist in exhausting the cooling fluid. Cooling fins K<1> are arranged on the casing K.
Patent GB-269310-A (GB)
Title: An improved valve seating tool
IPC: B23C3/05
Filed: 1926-03-23
Abstract: 269,310. Malia, A. March 23, 1926. Addition to 234,400. Portable turning-apparatus; jigs.-The valveseating tool described in the parent Specification is provided with a steady a having projections a' and fitting over the adjusting sleeve b of the tool. In a modification, Fig. 4, the steady comprises a ring d which is drilled and threaded to receive rounded screw-members e which are adjustable to fit openings of various diameters by means of a tommy-bar. Two sets of holes may be provided to give a further range of adjustment. In a further modification, the steady may comprise a member having stepped conical surfaces #<1>,#<2>. In a further modification, Fig. 8, for detachable head type engines, the steady consists of a bracket h adjustably secured to the upper face of the cylinder block and carrying a member j fitting over the locking sleeve and provided with a spherical outer surface engaging in a hole h<2> so that the tool may be used for seatings which are inclined to the upper surface of the cylinder block. A gauge l, Fig. 9, may be used in conjunction with this form the gauge being located over the tool spindle which is then adjusted until the port on l<1> contacts evenly with the cylinder block. The gauge may be provided with conical surfaces l<2>, l<3>, for checking angles of 35‹ or 45‹ on the cutter-faces. If the seating is located on the under side of the cylinder head, Fig. 7, the steady comprises a plate g, bolted under the cylinder block and bored to receive the locking sleeve b.
Patent GB-1169094-A (GB)
Title: Gated Unijunction Transistor Oscillator having improved Periodicity
IPC: H03K3/64
Filed: 1967-02-21
Abstract: 1,169,094. Unijunction transistor oscillator circuits. WESTINGHOUSE ELECTRIC CORP. 21 Feb., 1967 [25 March, 1966], No. 8114/67. Heading H3T. A unijunction transistor oscillator of the type having a capacitor resistor timing circuit connected to the emitter has two shunt paths across the capacitor, the first for keying the oscillator and determining the capacitor starting voltage on the first cycle and the second for ensuring the same starting voltage on succeeding cycles. In Fig. 1, the timing capacitor voltage is normally clamped by a transistor 28 and a diode 30 to a voltage equal to the drop across these components. When the transistor is cut-off the capacitor charges until a unijunction transistor 12 breaks down and commences to discharge the capacitor through the emitter junction. The discharge current reduces the voltage across a diode 50 in the discharge circuit, cutting off transistor 44 and so rendering a transistor 38 conducting. This provides a shunt path across the capacitor similar to that previously existing through transistor 28 so that the discharge continues to the same voltage. When the discharge current ceases transistor 44 again becomes conducting cutting off transistor 38 to initiate the next cycle. In Fig. 2 (not shown), two identical C.R. timing circuits (68, 70) are connected by a gating circuit 84 alternately to a common unijunction transistor to provide a two-phase output, i.e. pulses alternately from the two transistors (72, 74) (corresponding to 38). These pulses respectively set and reset a bi-stable circuit (96, 98) the transistor of which when conducting shunts the capacitor of one of the timing circuits so that they are alternately rendered ineffective.
Patent GB-609545-A (GB)
Title: New or improved process of forming transparent or translucent windows in sheet materials
IPC: B31B19/00
Filed: 1946-03-15
Abstract: 609,545. Coated fabrics. GATES. W. E F and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 15, 1946. No. 8125. [Class 140] Coated sheet material with transparent or translucent windows is produced by forming a molten film of a thermoplastic material on a metal surface and while the materialis molten pressing thereon sheet material from which windows have been cut or stamped out, then causing or allowing the hot melt to cool and stripping the coated sheet material from the metal surface. Suitable thermoplastic materials are polythene, polymers of isobutylene, rubber hydrochloride, cellulose esters and compositions comprising natural or synthetic waxes in admixture with polymers of methacrylic acid amides, N-substituted amides or esters, such as described in Specification 529,399, [Group IV]. Dyes or colouring matter may be added. The sheet materials are paper, cardboard and woven fabric sheets formed from fibres of natural or regenerated cellulose, cellulose derivatives, synthetic resins, asbestos, slag wool. glass. They can be dried and heated prior to pressing on the molten thermoplastic material and the sheets are preferably applied to the molten material as individual units printed and cut to the required shape. The metal surface can be a continuous metal band or the outer surface of a circular drum and may be engraved, patterned, embossed or printed. Suitable forms of apparatus are described in Specifications 600,687 and 601,713. The coated material can be used for packaging.
Patent GB-152927-A (GB)
Title: Improvements in or relating to valves
IPC: F16K35/14
Filed: 1920-03-19
Abstract: 152,927. Greig, S. March 19, 1920. Interlocking.-The two valves 2, 3 of a threeway valve apparatus are interlocked by means of a rocking-bar 10 having teeth 8, 9 which engage with the teeth of either one of two collars 6, 7, fixed on the valve spindles 4, 5 when the other valve spindle is rotated to open its corresponding valve. The plain part of the collar of the open valve abuts against the teeth of the rocking-bar and holds the other end in engagement with the teeth of the collar on the other valve spindle so as to lock that valve in its closed position.
Patent GB-835362-A (GB)
Title: Improvements in or relating to optical contour measuring projectors
IPC: G02B21/00
Filed: 1958-03-14
Abstract: 835,362. Profile projectors. EASTMAN KODAK CO. March 14, 1958 [March 15, 1957], No. 8216/58. Class 97(1) [Also in Group XIX] An optical contour measuring projector comprises a projector unit which includes supporting means for an object, a screen, an optical system to form an image of the object on said screen, and a stand on which the unit is mounted for angular adjustment about a pivot having its axis at 45 degrees to the incident optical axis; the projector unit being oscillatable through 180 degrees between a position in which the incident optical axis is horizontal and one in which it is vertical. Light from a source 8 passes an object mounted on a support 16 which itself is movably mounted on a movable base 14, and is reflected by a plurality of mirrors on to a screen 13. This projector unit is mounted on a tube 19 having at one end an annular member 21 which can engage another member 25 attached to a movable stand 22. The tubes 19 and 23 are both disposed at 45 degrees to the axis of the projector system and are connected by a spindle 28 having a hut 37 or 41 at each end. By tightening the nut 41, the annular members are frictionally engaged in one of two positions, angularly spaced by 180 degrees, each determined by a ball and indent mechanism.
Patent GB-787064-A (GB)
Title: Air filter oil
IPC: B01D46/00
Filed: 1956-03-16
Abstract: Oil compositions suitable for use in air filters or as textile machinery lubricants comprise a lubricating oil and between 0.05 and 2 wt. per cent of a mixture of long-fibred lithium and calcium soaps, the molar ratio of lithium soap to calcium soap being between 2 : 1 and 8 : 1 and the major proportion of the soap fibres having a length of at least 5 microns, the preferred average soap fibre length being at least 10 microns.  Soaps mentioned are those of fatty acids containing between 12 and 22 carbon atoms, e.g. soaps of hydrogenated fish oil acids, beef or mutton fat tallow, hydrolysed tallow, stearic, oleic, hydroxy stearic, myristic and palmitic acids.  The lubricating oils used may be animal, mineral, vegetable or synthetic oils or mixtures thereof.  Optional additive may also be incorporated in the composition, e.g. antioxidants such as phenyl alpha naphthylamine, anti-forming agents such as dimethyl silicone polymers, supplementary tackiness agents such as polybutene and isobutylene-styrene copolymers.  In examples a grease is prepared from animal fatty acids, lithium hydroxide monohydrate, hydrated lime and a mineral oil of 70 SSU./210 DEG  F. and is incorporated in mineral lubricating oils.