baber/WOPTO huggingface dataset:
Patent GB-1452348-A (GB)
Title: Device for the accurate positioning of an object holder in relation to the elements of an electron optical system
IPC: H01L21/027
Filed: 1974-02-28
Abstract: 1452348 Automatic positioning THOMSON-CSF 28 Feb 1974 [2 March 1973] 9212/74 Heading G3N In the positioning of a holder (4), Fig. 1 (not shown) of a sample for electron bombardment, for each of X, Y components of holder motion, actual position signals are provided by a counter 101 of interference fringes detected by a photocell from an interferometer, a required position signal, from computer 100, also controlling beam deflection by means of plates (31, 32), being stored in register 102, a digital error signal from comparator 103 being processed in logic circuit 104 to provide outputs DE 1 , DE 0 , S which via clockpulse generator 105 and logic circuit 106, 107, 109 control a stepping motor (41), or (42), Fig. 1) at a high speed when the error signal E exceeds in modulus a value |E 1 |, I, see Fig. 3 (not shown), or low speed when |E 1 |>|E|>|E 0 |, i.e. DE 1  = 1 = DE 0  for high speed or DE 1  = 0, DEo = 1 for low speed respectively, signal S defining the direction of motion. When the signals DEo for both X and Y components are zero, as detected by AND 110, monostable trigger 111 signals the completion of the positioning movement. If, subsequent to the time (t 2 ), Fig. 3 (not shown) that positioning is completed, signal DE 1  from either component X, Y regions the value 1, OR 113 enables the production of an "error due to vibration" signal, AND 115 being enabled, so that the digital error signal passes to d/a converter 116 supplying a signal to auxiliary deflection plates (61), or (62 Fig. 1) to correct for the vibration, by beam deflection. The beam,under control or computer 100 may bombard a plate coated with electron sensitive resin to manufacture masks used in semi-conductor work, or information stored on the sample may be read using back scatter, secondary electron emission, or light, or X-ray emission thereon. E 0  is the least error value which can be corrected by holder displacement, E 1  being the greatest value of error which can be allowed for by beam deflection.
Patent GB-141047-A (GB)
Title: Improvements relating to signalling by high-frequency currents, as in wireless telephony
IPC: H03C1/22
Filed: 1920-03-30
Abstract: 141,047. Western Electric Co., (Assignees of Colpitts, E. H.). May 18, 1914, [Convention date]. Wireless telephony and signalling. - High-frequency currents are modulated in accordance with low-frequency signal currents, such as voice currents, by a thermionic valve, which may serve also as the high-frequency generator. In one arrangement, the voice currents, produced by a microphone 24, Fig. 1, are supplied through transformers 21, 15 to the grid circuit of a valve generator 1, the plate circuit of which includes a transformer 5, to connect up the aerial or transmission circuit, and a transformer 6 to effect a retro-active connexion to the grid circuit. The plate current is fed through an impedance 11. In a modification, the grid battery 16 may be in series with a resistance across the winding 14 of transformer 15. The transformers 5, 6 may have their primary windings in parallel instead of in series as shown in Fig. 1. In the arrangement shown in Fig. 4, two valve generators 1<a>, 1<b> are fed with current through the impedance 11, the grid circuits being connected through condensers 18 to the retro-active transformer 5, and through a transformer 15 to the microphone circuit.
Patent GB-847302-A (GB)
Title: Motor vehicle power plants
IPC: B60K5/00
Filed: 1958-03-24
Abstract: 847,302. Differential gears. AUSTIN MOTOR CO. Ltd., and PAYNE, E. R. March 18, 1959 [March 24, 1958], No. 9267/58. Class 80 (2). [Also in Groups XXVII and XXXI] A transversely-mounted engine assembly for a motor vehicle comprises a change-speed gear and differential gear mounted in parallel in the engine crankcase 23, Fig. 1, to one side of the crank-shaft 10, the input shaft 13, Fig. 2, of the change-speed gear being in the form of a multiple pinion which is driven from the crankshaft 10 through gearing 12 and clutch 11. The forward gear pinion elements of the shaft 13 are in constant mesh with pinions 14, 15, 16 which are rotatable in the output shaft 17 and selectively coupled thereto by sliding sleeves 18, 19. A fourth pinion element 20 on the shaft 13 may be engaged alternatively by a slidable pinion 24 on the output shaft 17 for forward gear or by a slidable reversing pinion 21. The output shaft 17 has a gear 27 in constant mesh with a crownwheel 28 of the differential gear 30 which is mounted in bearings 31 in the crank-case 23.
Patent GB-880723-A (GB)
Title: Improvements relating to compositions suitable for use in the manufacture of floor and wall coverings
Inventor: SAUL WALTER
IPC: C08L23/22
Filed: 1957-03-21
Abstract: A thermoplastic composition comprises a filler admixed with a resinous binder consisting of a minor proportion of one or more resinous polymers of aromatic vinyl compounds and one or more rubbery polymers of mono olefines or copolymers thereof with diolefines, together with a major proportion of one or more petroleum resins, coumarone or coumarone/indene resins, resinous polymers of cyclopentadiene, naphthalene/formaldehyde resins, or asphaltic pitch or bitumens.  Specified polymers are those derived from styrene or a -methyl styrene; isobutylene, isoprene, butadiene, piperylene and dimethyl butadiene.  Pigments and fillers such as limestone and/or asbestos fibres may be included. The products find application as floor and wall coverings.ALSO:A thermoplastic composition comprises a filler admixed with a resinous binder consisting of a minor proportion of one or more resinous polymers of aromatic vinyl compounds and one or more rubbery polymers of monoolefines or copolymers, thereof with diolefines, together with a major proportion of one or more petroleum-resins, coumarone or coumarone/indene resins, resinous polymers of cyclopentadiene, naphthalene/formaldehyde resins, or asphaltic pitch or bitumens.  The polymers specified are those derived from styrene, a -methyl styrene; isobutylene, isoprene, butadiene, piperylene and dimethylbutadiene. Pigments and fillers such as limestone, and/or asbestos fibres may be included.  The products find application as floor and wall coverings.
Patent GB-872305-A (GB)
Title: Improvements in the manufacture of hydrogen peroxide
IPC: H01J31/42
Filed: 1958-03-24
Abstract: Hydrogen peroxide is produced by the alternate reduction and reoxidation of one or more of 2-isopropyl or 2-sec. butyl anthraquinone, or the tetrahydro derivative of 2-isopropyl or 2-sec. butyl anthraquinone, in a solvent medium comprising more than 76% by volume of one or more of a phosphate ester, phosphonate ester, or C7-C11 alcohol.  Tri-n-butyl and tri-(2-ethyl hexyl) phosphate and di-isobutyl carbinol are specified.  Alphamethyl or dimethyl naphthalene may also be present.  Examples specifying degree of hydrogenation, composition of solvent medium, and yield are given. Specifications 465,070, 669,274, 671,524, 686,574, 719,523 and 872,290 are referred to.
Patent GB-590137-A (GB)
Title: Improvements in or relating to elastic fluid compressors of the injection jet type
IPC: F04F5/42
Filed: 1945-04-13
Abstract: 590,137. Fluid-injection compressors. NEWCOMBE, C. K. April 13, 1945, No. 9315. [Class 71] In a jet compressor of the type wherein the kinetic energy of a high speed motive fluid jet induces, accelerates and compresses a secondary stream of fluid, a rotational component of motion is imparted to the mixture of fluids. The motive fluid from a manifold 25 is controlled , by a series of cam-operated fluted pistons 32 working within ported sleeves 28 each housed within a bore 27 between a guide vane 24 and nose cap 26 and so fed through rectangular passages 31 that are formed by the nose cap 26 and a wedge shaped end of the guide vane 24. Secondary fluid is thereby induced to flow with a spinning motion through the helical conduits 22 formed by the spaced guide vanes 24 interposed between an inner and outer shell 20, 21 of frusto-conical shape. The compressed fluid discharged through manifold 40, 41 is controlled by a diffuser having a series of airfoil type of blades which may have ejector slots and be supplied with motive fluid from the manifold 25. Instead of the frusto-conical shells the compressor may have surfaces of cylindrical, hyperboloidal ellipsoidal formation.
Patent GB-675896-A (GB)
Title: Improvements in or relating to precision balances
IPC: G01G1/00
Filed: 1950-04-17
Abstract: 675,896. Weighing-apparatus. SARTORIUS-WERKE AKT.-GES. April 17, 1950 [Aug. 18, 1949], No. 9369/50. Class 143 In a balance having means external to a casing therefor to operate a weight changing mechanism within the casing, the casing is readily removable without disturbing any of the weighing and weight changing apparatus. Casings. The casing is in two parts 2, 3 which respectively contain the load pan,. weight changing apparatus and level indicating apparatus and the beam, a slot 41 allowing the beam to pass through the top 4 of casing 2 when the casing is removed. A partition 135 secured to the base screens the weighing mechanism from electrostatic charges in the material being weighed in the pan 66. The casing may be circular, oval or polygonal in plan. Indicators. An image of a transparent graduated plate 33, carried by the indicating needle 32 and illuminated by a lamp 300 is projected by a lens 31 on to a screen 36 where out of level of the beam is indicated. Loose and sliding weight apparatus. The beam 34 carries a stirrup 29 on which weights 28 are deposited by downward movement of rods 26 consequent upon downward pivoting of levers 25 about a rod 60, one weight only, together with its actuating members, being shown in Fig. 1. Movement of levers 25 is controlled by a series of cams 243, 343, see also Fig: 3, which are respectively rotated by knobs 8 and 7 located outside the casing. Rotatable with knob 8 is an indicating wheel 20 having weight indications which are viewed through apertures 17 in a drum 15 which it rotatable with knob 7 and also bears weight indications 19. An identical arrangement of cams weights transmission members is controlled by a second pair of co-axial knobs 9, 10. Specifications 675,892 and 675,893 are referred to.
Patent GB-1202631-A (GB)
Title: Glass coating of substrates
IPC: H01L21/316
Filed: 1968-02-27
Abstract: 1,202,631. Coating with glass. R.C.A. CORPORATION. 27 Feb., 1968 [17 March, 1967], No. 9416/68. Headings CIA and ClM. An object is coated with glass by maintaining the object at elevated temperature whilst in contact with a vaporous mixture of an inert gas, silane, oxygen, and at least one of boron hydride, phosphorus hydride, antimony hydride, bismuth hydride, aluminium alkyl, zinc alkyl, or a mixture of these. The proportions of the reactants in the vapour may be adjusted so as to form a coating with a coefficient of thermal expansion equal to that of the object. The object is preferably heated to 300-600 C., and, after coating, further heating may be employed to densify the glass. In certain cases, a layer of silica may be deposited by contacting the article, at the elevated temperature, but prior to the above contacting step, with a vaporous mixture of an inert gas, silane and oxygen. A precise procedure for the introduction of the gases is described. In the examples, coating with borosilicate, phosphosilicate, aluminosilicate, zinc silicate, alumina borosilicate and zinc borosilicate glasses is described.
Patent GB-1364052-A (GB)
Title: Cold starting devices for internal combustion engines
Inventor: ROSS G E D
IPC: F02M1/04
Filed: 1971-04-15
Abstract: 1364052 Spray carburetters ZENITH CARBURETTER CO Ltd 10 April 1972 [15 April 1971] 9459/71 Heading F1B An automatic cold starting device for an internal-combustion engine having an induction passage 12 through which fuel/air mixture is normally supplied to the engine and a main throttle valve 16 in the said induction passage to control the mixture flow, the device comprising an auxiliary passage 18 having an air inlet 19 and an outlet 21 downstream of the main throttle valve 16, a second throttle valve 24 arranged so that engine suction in the auxiliary passage tends to close the second throttle, a fuel supply source 23, 36 arranged to supply a metered quantity of fuel to the auxiliary passage and a thermostatically controlled mechanism operative to limit the closing of the second throttle valve so that, once the engine is running, both the airflow in the auxiliary passage and the fuel supply thereto are progressively decreased with increase in engine temperature. The fuel supply to the nozzle 23 is controlled by a valve 36 which consists of a plunger 38 carrying a profiled needle 39 movable axially in an orifice 41. A sealing ring 42 closes the orifice in the lowermost position of the plunger. The second throttle valve is fixed on a shaft 25 in an offset position so that the air-flow tends to close it. Freely mounted on the same shaft are two levers 32 and 33 and fixed on the shaft is a lever 26 having laterally projecting posts 27 and 28, which enter notches 29 and 31 respectively in the levers 32 and 33. The lever 33 carries a follower 48 which engages a cam 49 and is also connected to the lever 26 by a spring which tends to turn the shaft 25 in the opposite direction to the arrow "A", i.e. towards the open position. The position of the cam is deter-  mined by a bi-metallic spring 51, responsive to engine temperature. The lever 32 is connected to the lever 26 by a spring 34 which tends to rotate the lever 32 in the same direction as the arrow "A". A peg 43 on the lever engages a notch 44 in the plunger and moves the valve to the closed position as the second throttle valve closes. The device may also be used with a constant depression carburetter.
Patent GB-736367-A (GB)
Title: New quaternary aza-cycloalkane compounds and process for making them
IPC: C07D295/13
Filed: 1953-04-07
Abstract: The invention comprises 3-methyl-N : N1-dialkyl - 3 - aza pentylene (1 : 5) - bis-quaternary-aza-cycloalkanes of formula <FORM:0736367/IV (b)/1> in which R1 and R2 represent alkyl radicals containing 1 or 2 carbon atoms, N = X represents an aza-cycloalkane radical, and A represents an anion.  N = X is preferably pyrrolidino, piperidino or morpholino, and A is preferably a hydroxyl ion or an anion derived from a hydrohalic, alkyl-sulphuric, alkyl- or aryl-sulphonic or organic carboxylic acid.  The compounds are prepared by treating a compound of formula <FORM:0736367/IV (b)/2> with a quaternating agent capable of introducing an alkyl radical containing 1 or 2 carbon atoms, e.g. an alkyl halide, dialkyl sulphate or alkyl ester of an alkyl- or aryl-sulphonic acid.  The reaction is preferably conducted in an alcohol or acetone solvent, and the products may be converted into their corresponding quaternary ammonium hydroxides by treating the halides with silver oxide, the sulphates with barium hydroxide or any of the quaternary salts with an anion exchanger.  The examples describe the preparation of 3-methyl - N : N1 - dimethyl - 3 - aza - pentylene-(1 : 5) - bis - pyrrolidinium diiodide, - pyrrolidinium di-acid-tartrate, -pyrrolidinium dihydroxide, -piperidinium diiodide and -morpholinium dioodide; 3-methyl-N : N1-diethyl-3-aza - pentylene - (1 : 5) - bis - pyrrolidinium dibromide, -piperidinium dibromide, -piperidinium di-dextro-acid-tartrate, -piperidinium di-acid-succinate, -piperidinium dipropionate, -piperidinium dibenzoate and -piperidinium dihydroxide.  3 - Methyl - 3 - aza - pentylene - (1 : 5) - bis-aza - cycloalkanes are prepared by methylating the corresponding 3-aza-pentylene-(1 : 5)-bis-aza-cycloalkanes with formaldehyde and formic acid.  The preparation of compounds in which the aza-cycloalkane group is pyrrolidino, piperidino and morpholino is described.  3 - Aza - pentylene - (1 : 5) - bis - piperidine, -pyrrolidine and -morpholine are prepared by hydrogenating methanolic solutions of N-piperidino-, N-pyrrolidino- and N-morpholino-acetonitrile in presence of Raney nickel at 50 DEG  C. and under a pressure of 120 atmospheres. Specification 673,212 is referred to.
Patent GB-1220183-A (GB)
Title: Improvements in methods and devices for homogenising molten glass
IPC: C03B5/187
Filed: 1968-02-27
Abstract: 1,220,183. Homogenizing molten glass. SOC. DES VERRERIES INDUSTRIELLES REUNIES DU LOING. 27 Feb., 1968 [27 Feb., 1967], No. 9471/68. Heading C1M. [Also in Division B1] Molten glass is homogenized by a rotating stirrer wherein there is relative vibratory movement between the stirrer and the glass along the axis of the stirrer. Preferably the vibration frequency is from 25 to 100 cycles, second and the amplitude from 2 to 10 mm./ depending on the viscosity of the molten glass. A stirrer rod 1 carries paddles or, as shown, helical strips 1c on the shaft 1b at its lower end 1a and its upper end 1d engages a coupling device 2 having bearing rings 2a, 2b in a casing 2c vibrated by an electromagnetic or electrohydraulic vibrator 4. The rod 1 is rotated from a motor 8 connected thereto by pulleys 7a, 7b and belt 7c. The operative mechanism is enclosed in a casing 3 secured to the vessel 5 containing the molten glass.
Patent GB-1097516-A (GB)
Title: Process for finishing textile materials
Inventor: WUNDER WALTER
IPC: D06M15/285
Filed: 1965-03-05
Abstract: A composition for finishing textile materials comprises an aqueous dispersion of (a) a polymer or copolymer of a vinyl or divinyl monomer, containing a group or groups reactive with NCO group, and (b) an aqueous emulsion of a reaction product containing -NCO groups prepared from a compound of M.W. 500-6000 having at least 2 -OH groups and excess polyisocyanate.  The hydroxyl compound may be a polyester or polyether.  The polyisocyanate may be aliphatic, cycloaliphatic or aromatic. The NCO-containing reaction product may be used as its bisulphite addition product.  The polymer (a) may be derived from: ethylene, propylene, vinyl chloride, vinyl acetate, vinyl ethyl ether, styrene, divinyl benzene, butadiene, isoprene, chloroprene and acrylic compounds. In examples, the following polymers were used in admixture with various polyurethane prepolymers: (1) 85% ethyl acrylate, 15% b -hydroxy propylmethacrylate copolymer; (2), (4), (5), (6), (7) and (8) 85% butyl acrylate, 10% butadiene, 5% methacrylamide copolymer; (3) 65% vinyl chloride, 35% ethylene copolymer.ALSO:Textile materials, e.g. cotton, regenerated cellulose, wool, silk, polyamides, polyurethanes, polyesters, polycarbonates, polyacrylonitriles or polypropylenes are finished by treatment, e.g. spraying or impregnating with an aqueous liquor containing (a) a vinyl or divinyl polymer or copolymer containing groups reactive with NCO groups, and (b) an aqueous emulsion of a reaction product, containing -NCO groups, and prepared from a compound of MW 500-6000 having at least 2-OH groups and excess polyisocyanate.  After treatment the textile may be dried at 80-110 DEG C for up to 5 minutes.  The textiles are improved particularly with respect to crease, and abrasion resistance, and retention of shape.  Tear resistance is only slightly affected.
Patent GB-752004-A (GB)
Title: Light sensitive diazotype material
IPC: G03C1/60
Filed: 1954-03-31
Abstract: 752,004. Diazotype material. GENERAL ANILINE & FILM CORPORATION. March 31, 1954 [Feb. 10, 1954], No. 9486/54. Class 98 (2). A light-sensitive diazotype composition comprises an aqueous dispersion of a diazonium compound, a water-insoluble cationic or non- ionic polyvinyl ester and finely divided alumina. The alumina is preferably of a particle size from 1 to 5 microns, but colloidal alumina may also be used. The polymer may be polyvinyl acetate or chloride, or a copolymer of one of these with acrylic acid or styrene. It is used as an aqueous dispersion containing preferably 40-55 per cent by weight solids. An azo coupling component may be included in the compositions or in the developer. The diazonium compound, azo coupler, adjuncts and the bases on to which the compositions are coated may be those specified in Specification 749,034. Examples are given of materials treated by both the wet and dry processes. Specifications 625,999, 647,197, 647,617, 705,551, 751,111 and 752,000 also are referred to.
Patent GB-858392-A (GB)
Title: Improvements in or relating to solid state display screens
IPC: H05B33/14
Filed: 1959-03-19
Abstract: 858,392. Television. WESTINGHOUSE ELECTRIC CORPORATION. March 19, 1959 [March 25, 1958], No. 9532/59. Drawings to Specification. Class 40(3). [Also in Groups XXXVI and XL(a)] A solid state display screen comprises an electro-luminescent material in association with a dielectric material capable of changing its effective capacitance in response to a D.C. input or control signal applied thereto in a localized screen area so as to alter the field arising from an applied A.C. light power potential to regulate the brightness of the electro-luminescent material in that localized area. The screen may be consolidated from the electro-luminescent and non- linear dielectric materials mixed in powdered form or may comprise separate layers of these materials intimately bonded together. The control signal is applied to a control electrode having a low through impedance to A.C. and a high transverse impedance to D.C., the opposite side of the screen being provided with a transparent electrode associated with a transparent support. The control electrode may comprise a plurality of separate electrodes each associated with one of the localized areas or a plurality of contact elements located on the surface of an electrode layer. Alternatively this electrode may comprise a conducting mesh having conducting squares located in each aperture. The control signal may be applied by mechanical or electronic switches or by means of a cathode-ray beam modulated with a video signal. Specification 829,255 is referred to.
Patent GB-806497-A (GB)
Title: Castings and method of stacking same
IPC: B22D5/00
Filed: 1957-03-22
Abstract: 806,497. Castings. SCHMIDT METALLSCHMELZWERK G.m.b.H., K. March 22, 1957 [April 6, 1956], No. 9545/57. Class 83 (1). [Also in Group XVII] An ingot has a trapezium cross-section in both transverse and longitudinal directions, and lugs b, b<SP>1</SP> extending from each end, the lugs having trapezium cross-sections and faces f, e co-planar with an end-face d and the face c of the ingot. Pairs of ingots form a rhomboid cross-section, Fig. 2, and the lugs b<SP>1</SP> prevent a lengthwise displacement of one ingot of a pair against the other. The surface c of the ingot is the exposed surface during solidification in the mould.
Patent GB-1147731-A (GB)
Title: Improvements relating to the stabilization of chlormethiazole
IPC: A61K47/12
Filed: 1967-03-01
Abstract: 1,147,731. Stabilized chlormethiazole compositions. ASTRA A.B. 1 March, 1967 [8 March, 1966], No. 9762/67. Heading A5B. A stabilized pharmaceutical composition comprising chlormethiazole is produced by forming an intimate mixture of chlormethiazole and a non-polar, non-toxic carrier selected from peanut oil, oleic acid, stearyl alcohol, stearic acid and mixtures of these carriers, in which mixture the amount of chlormethiazole is 20-85 percent by weight, based on the total weight of chlormethiazole and carrier. The composition may be in the form of a dosage unit comprising the above composition enclosed in a capsule of a watersoluble pharmaceutically acceptable solid material, e.g. gelatin.