baber/WOPTO huggingface dataset:
Patent GB-1226108-A (GB)
IPC: G02B5/18
Filed: 1967-11-17
Abstract: 1,226,108. Diffraction gratings. NATIONAL RESEARCH DEVELOPMENT CORP. Nov. 14, 1968 [Nov. 17, 1967], Nos. 52515/67 and 11433/68. Heading G2J. A method of manufacturing a diffraction grating includes the steps of producing a composite structure comprising a body having an optically worked surface and a series of regularly spaced adherent strips formed on said surface so as to alternate with exposed strips of said surface e.g. by ruling on a deposited metal surface, etching the exposed strips to produce a series of grooves of substantially uniform depth extending into the body below the original level of said surface, removing said adherent strips, and utilizing the resultant structure to produce a monolithic body having a surface pattern alternating regularly between two levels which respectively correspond to said surface and the bottoms of said grooves, characterized in that at least that part of said surface pattern which corresponds to the bottoms of said grooves is subjected to an electrical etching treatment such as ion etching by direct current or radio frequency techniques. In one embodiment the grooves are formed by electrical etching only of the exposed strips. In a second embodiment the exposed strips are chemically etched first e.g. using HF and then with an electrical smoothing etch. In a third embodiment, the exposed strips are chemically etched, the adherent strips removed, a replica taken of the surface and an electrical smoothing etch is then applied to the surface of the replica. Metal remaining after ruling and lying above a proposed groove may be removed by chemical etching before electrical etching is applied to the whole surface.
Patent GB-1228738-A (GB)
IPC: C07C213/00
Filed: 1969-02-10
Abstract: 1,228,738. Aminodiphenyl ethers. SUMITOMO CHEMICAL CO. Ltd. 10 Feb., 1969 [28 Feb., 1968], No. 7017/69. Heading C2C. A process for producing an amino diphenyl ether derivative of the formula wherein R, R<SP>1</SP> and R<SP>11</SP> represent hydrogen atoms, alkyl groups containing 1-3 carbon atoms, alkoxy groups containing 1 to 3 carbon atoms, alkoxy carbonyl groups of which the alkyl moiety contains 1 to 3 carbon atoms, phenyl, xylyl, tolyl or amino groups comprises hydrogenating a compound of the formula wherein R 1 , R<SP>1</SP> 1  and R<SP>11</SP> 1  represent hydrogen atoms, alkyl groups containing 1-3 carbon atoms, lower alkoxy groups containing 1-3 carbon atoms, alkoxycarbonyl groups of which the alkyl moiety contains 1 to 3 carbon atoms, phenyl, xylyl, tolyl, amino or nitro groups catalytically with hydrogen in the presence of Raney nickel in dimethyl formamide. The starting material may be prepared in situ by reacting an appropriate nitrobenzene derivative with an appropriate phenol derivative.
Patent GB-1231172-A (GB)
IPC: G01B5/00
Filed: 1967-04-10
Abstract: 1,231,172. Comparing dimensions. F. PHILLIPS, June 28, 1968, [April 10, 1967], No. 16220/67. Heading G1M. A device for checking a variety of dimensions on different components comprises a body part 10 supporting a dial indicator and five adjustable legs 12, 14, 16 provided with feelers 42, the legs being capable of axial adjustment relative to the body part and angular adjustment relative to each other. The body part 10 may be T-shaped and the feelers 42 which may be part-spherical may be connected to or form part of the legs 12, 14, 16, the legs 12, 14, 16 being connected by clips 18, 22, 34 to the body part 10. The dial indicator may be secured to a rod 44 which is releasably held by a pin (46) Fig.3, (not shown) in one of a plurality of bores in the body part and the device may be provided with a bridge piece for extending the body part. For angularly positioning the legs the clips which allow axial adjustment of the legs are provided with screwed studs having extending pegs which are each engaged in any one of a plurality of holes in the body part.
Patent GB-1232091-A (GB)
IPC: B60C9/00
Filed: 1968-06-27
Abstract: 1,232,091. Polyesters. INVENTA A.G. FUR FORSCHUNG UND PATENTVERWERTUNG. 27 June, 1968 [3 July, 1967], No. 30785/68. Heading C3R. To a saturated polyester, either during or after its formation by polymerization, is added elementary sulphur or a compound which will decompose to elementary sulphur during the polymerization or subsequent extrusion, the sulphur-containing polyester then being extruded. The extrusion may be by melt-spinning to form fibres, film or strip. The sulphur compound may be an organic polysulphide. Elementary sulphur may be added in powder or molten form. Preferably there is 0À001-10% by weight of sulphur in the extruded polyester. The polyester may be a polycondensation or copolycondensation product of a bifunctional acid and a dihydroxy compound. Acids mentioned are succinic, sebacic, phthalic, terephthalic and naphthalene dicarboxylic acid, or a hydroxymonocarboxylic acid, e.g. p-hydroxybenzoic acid. The dihydroxy compound may be ethylene, propylene butylene or hexylene diol, hydroquinone or cyclochexane dimethylol. The preferred polyester is polyethylene terephthalate.
Patent GB-1232991-A (GB)
IPC: C05F3/00
Filed: 1967-02-17
Abstract: 1,232,991. Hammer mills. J. THAIN and D. G. MILES-MARSH. 17 May, 1968 [17 Feb., 1967; 16 March, 1967], Nos. 7765/67 and 12345/67. Heading B2A. [Also in Divisions C1 and F4] A method of drying poultry manure comprises mixing the manure with already dried manure to form a homogeneous mixture of less than 40% by weight moisture and drying the mixture by hot gas, e.g. to a moisture content of 2-15% by weight. The method may be preformed in a batchwise or continuous manner. The drying may be done in a stationary drum provided with rotating paddles, hot air being passed through the drum. In the pulveriser and drier of Fig. 1 a rotating shaft 10 has mounted thereon pulversing hammers 15, 16, 17 in chamber 12, and fan 19 in chamber 13. Chamber 12 also contains stationary hammers 18. The homogeneous mixture fed in through inlet 20 is pulverised by the hammers and dried by hot air sucked through the apparatus. The dried manure is forced by fan 19 through outlet 21 to a cyclone separator.
Patent GB-1250279-A (GB)
IPC: C07C67/00
Filed: 1969-08-14
Abstract: 1,250,279. Decarboxylase-inhibiting medicines. F. HOFFMANN-LA ROCHE & CO. A.G. 14 Aug., 1969 [16 Aug., 1968], No. 40603/69. Heading A5B. [Also in Division C2] Pharmaceutical compositions, having decarboxylase-inhibiting activity suitable for oral or parenteral administration, contain a hydrazide of the formula or acid addition salts thereof in association with compatible pharmaceutical carriers. The composiltionis may also contain L-dopa or acid addition salts thereof and may be used in the treatment of Parkinsonism.
Patent GB-1250968-A (GB)
IPC: C22B1/244
Filed: 1969-12-16
Abstract: 1,250,968. Shaft furnaces. ESSO RESEARCH & ENG. CO. 16 Dec., 1969 [20 Dec., 1968], No. 61227/69. Heading F4B. [Also in Division Cl] A shaft furnace for drying and sintering ore pellets has an annular combustion chamber 7 built into the fire brick wall 4. Oil is atomized and introduced tangentially into this chamber where it is mixed with air and burnt. The exhaust gases are mixed with a further supply of air for oxidizing purposes and introduced into the sintering zone 2 of the furnace through a number of passages. The pellets are fed into drying zone 1, and pass through the sintering zone 2 and the cooling zone 3 to the discharging point 6.
Patent GB-1251372-A (GB)
IPC: G11B5/245
Filed: 1968-01-29
Abstract: 1,251,372. Magnetic beads. RACAL-THERMIONIC Ltd. 28 Jan., 1969 [29 Jan., 1968], no. 4554/68. Heading G5R. A gapless magnetic tape head has a ring-type core with a winding SW 1  arranged to produce a saturated region ST 1  having a boundary tangent to the tape-contacting face F 1  of the core. As shown, the winding SW 1  is potted in a hole 4 provided in a limb A of a two-part core and locally saturates the shaded region ST 1 , thereby causing the flux to bridge the effective polepieces PT N , PT S . In modifications (Figs. 2, 3, not shown) the hole is located nearer the front face or a notch is cut in the rear face R 1  of the limb A. A multi-track head is formed by supporting U-shaped portions B in epoxy, and attaching a holder containing the shaped limbs A to complete the assembly. If the core is metal, the notch is cut by spark machining with a wire electrode, or by sawing with a thread impregnated with FeCl 3  etching solution or SiC abrasive, and if ferrite, the notch is cut by a high speed diamond saw, by ultrasonic machining or by a jet of air-borne abrasive.
Patent GB-1251804-A (GB)
IPC: F02D19/06
Filed: 1967-11-23
Abstract: 1,251,804. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb.11, 1969 [Nov.23, 1967], No. 53360/67. Heading F1G. A control system for a dual-fuel gas turbine engine comprises a servo-operated valve device incorporating a pair of valve parts 11, 12 for controlling the flow of the two fuels respectively, the valve parts being coupled together for movement both angularly and axially, the arrangement being such that at opposite limits of the angular movement of the valve parts the flow of their respective fuels is completely prevented and, for any given axial position in which the valve parts are treated by the action of the associated servomechanism, the amount of fuel which can flow to the engine under the control of one of the valve parts when in one limiting angular position is equivalent, in terms of the requirements of the engine, to the amount of the other fuel which can flow to the engine under the control of the valve parts in the other limiting angular position. This permits a changeover from one fuel to the other while the engine is running. The valve part 11 controls the flow of liquid fuel from a pump 25 having a stroke-varying servo controlled by a leak-off valve 29 actuated by a diaphragm 27 subjected to the pressure drop across the valve part 11. The valve part 12 controls the flow of gaseous fuel from a constant pressure valve 24. The valve parts 11, 12 have ports 19, 21 respectively cooperating with respective ports 18, 23 in sleeves 14, 15, so that axial displacement of the valve ports throttles the flow through the ports. The ports 18, 19 are so angularly orientated relative to the ports 21, 23 that when the valve parts 11, 12 are rotated to bring the ports 18, 19 into alignment, the ports 21, 23 are completely out of aligment, and vice versa, whereby the changeover from one fuel to the other can be effected. The servomechanism for controlling the axial position of the valve parts 11, 12 under the influence of the compressor discharge and atmospheric pressures and a governor driven by a separate power turbine and for preventing overspeeding of the engine (with correction for variation of ambient temperature) is the same as that described in Specification 1,251, 799, but in this case the pressure fluid used for operating the servo-mechanism is liquid fuel instead of gaseous fuel. When the engine is operating wholly on gaseous fuel, a valve 64 is operated to cut-off the chamber 20 downstream of the valve part 11 from the burners and to connect it instead to the low-pressure reservoir from which liquid fuel is drawn by the pump 25, to provide a return path for the liquid fuel flowing through the passage 33 of the servo-mechanism.
Patent GB-1252708-A (GB)
IPC: D01F11/14
Filed: 1970-06-12
Abstract: 1,252,708. Coated products. SIGRI ELEKTROGRAPHIT G.m.b.H. 12 June, 1970 [1 July, 1969], No. 28692/70. Heading B2E. A substrate such as a steel or brass plate or the internal surface of a tube is coated with a fluid cross-linkable synthetic resin composition containing as filler fibres of carbon and/or graphite and the resin is cured. The composition may be applied in two layers with an intermediate drying stage. The steel plate may be sand-blasted and coated with a synthetic resin bonding agent. The resin in the composition may be thermosetting such as a phenol-formaldehyde or furan resin and the composition may be applied by brushing, spraying or trowelling. The fibres may be from 0.05 mm to 5 cm long.
Patent GB-1252816-A (GB)
IPC: C06B41/08
Filed: 1969-06-27
Abstract: 1,252,816. Explosive compositions. DYNAMIT NOBEL A.G. 27 June, 1969 [29 June, 1968], No. 32746/69. Heading C1D. A primary composition in granulated form comprises a mixture of lead azide, lead trinitroresorcinate, and 0À1 to 5% by weight of a binder. Segregation of the constituents during loading is avoided. In Example 1 the lead salts are stirred into a solution of nitrocellulose in acetone, water is added, and the product filtered off and dried. In Example 2 the lead compounds are mixed with an aqueous suspension of methyl carboxycellulose and the product granulated by being forced through a cloth screen by hand or in a granulating machine. Other binders referred to are methyl, ethyl, and acetyl cellulose, alginates, guar flour, polyvinyl alcohols, polyolefin glycols, and polyvinyl pyrrolidones.
Patent GB-1257477-A (GB)
IPC: F04B43/12
Filed: 1968-12-07
Abstract: 1,257,477. Colourimetry. BRITISH TITAN Ltd. Oct.30, 1969 [Dec. 7, 1968], No. 58235/68. Heading G1A. [Also in Division F1] A device for the determination of a substance by colourimetry e.g., the iron content in a titanium dioxide slurry in the manufacture of titanium dioxide pigment by the sulphate process includes a peristaltic pump (see Division F1) having three pipes 13, 14, 15 through which is pumped a solution of ammonium persulphate, a solution of the substance to be measured, i.e. titanium dioxide slurry and a solution of thioglycolic acid respectively. The outlets of the pipes are fed to a mixing head 20 in which the contents of the pipes 13, 14 are mixed prior to the mixing with the contents of pipe 15, thence to a mixing tube 21 and a sampling tube 22. The tube 22 overlies a cadmium sulphide photo-cell 23 which by means of a lamp 25 detects the iron content of the mixture which is measured by a microammeter 29 in a detection device 24. The solutions exhaust through a pipe 26. The solution of thioglycolic acid also includes ammonia and citric acid.
Patent GB-1258855-A (GB)
IPC: D06M15/356
Filed: 1970-10-28
Abstract: 1,258,855. Treating inorganic fibres. VEB. KOMBINAT TECHNISCHES GLAS ILMENAU. 28 Oct., 1970, No. 51258/70. Heading D1P. A process for treating flat bodies made of inorganic fibre materials, wherein the desized flat bodies are treated with a solution which contains an adhesion agent, a solution or dispersion of a silicic acid ester, which can be partially or completely condensed and preferably silicic acid compounds, especially silicic acid sols or optionally an inorganic pigment, apart from silicic acid compounds. The adhesion agent may be organo-functional silicon compounds or a mixture of organo-functional silicon compounds and/or a cationactive chromium complex of an organic, preferably unsaturated, acid or a mixture of cation-active chromium complexes of organic, preferably unsaturated, acids with organo-functional silicon compounds, in a concentration of 2 to 50g/litre and preferably 7 to 20g/litre. The solution or dispersion of the silicic acid ester, which can be partially or completely condensed, is used in a concentration of 20 to 200g/litre and preferably 30 to 150g/litre with a silicon dioxide content of 10% by weight. The silicic acid compounds, preferably silicic acid sols, are used in concentrations of 0 to 100g/litre and preferably 20 to 80g/litre with a solids content of the sol of 7 to 10% by weight. Examples of inorganic pigments which may be used are titanium dioxide, calcium carbonate, calcium sulphate and aluminium oxide, preferably in dispersed form. Materials treated also include slag, mineral, graphite, asbestos and ceramic fibre, as well as mixtures of inorganic fibres.
Patent GB-1264742-A (GB)
IPC: C07F9/24
Filed: 1970-04-06
Abstract: 1,264,742. Phosphorus-containing hydroxy pyrazole derivatives. FARBENFABRIKEN BAYER A.G. 6 April, 1970 [5 April, 1969], No. 16221/70. Heading C2P. The invention comprises compounds of the general formula  in which R is C 1 -C 4  alkyl, R<SP>1</SP> is C 1 -C 4  alkyl or alkoxy, X is O or S and M is alkali metal. They may be obtained by reacting, preferably in a solvent and preferably at -10 to +50 C., a compound of the formula in which R<SP>11</SP> is alkyl or aryl with an alkali metal alcoholate at -10 to + 50 C. The radical R<SP>11</SP> is preferably methyl or ethyl. The compounds II can be obtained by reacting the corresponding O,O-dialkyl (thiono) phosphoric or O-alkylalkane (thiono) phosphonic acid hydrazide with an appropriate acetoacetic acid ester and the product may be reacted, without intermediate isolation thereof, with the alcoholate to form compounds I.
Patent GB-1288689-A (GB)
IPC: D03J1/00
Filed: 1970-12-17
Abstract: 1288689 Removing dust and lint from looms YOSHIDA KOGYO KK 17 Dec 1970 [24 Dec 1969] 59942/70 Heading F4X Means for removing lint &c from the vicinity of the warp stop motion 12, heddles 16 and reeds 18 in a loom comprises a suction box 34 having one suction opening 35 directed towards the warp stop motion 12 and another suction opening 36 directed towards the heddles 16, and a branch suction outlet conduit 32 from said box, a cylindrical member 37 having an elongated suction opening 38 directed towards the reeds 18 and a branch suction outlet conduit 33 fron said member, a main suction conduit 31 connected to said branch conduits, and a suction pump P drawing the lint &c through said branch and main conduits and discharging the same into a collecting box 39 shown as comprising a wire screen.
Patent GB-1288734-A (GB)
IPC: D01H5/14
Filed: 1970-01-22
Abstract: 1288734 Gills HAKUSHIN SEISAKUSHO CO Ltd 22 Jan 1970 [27 Jan 1969] 3096/70 Heading DIN A faller bar comprises a body portion, including integral ends, which has a constant transverse thickness throughout its length and which has combing pins held in a layer of plastics at least partially covering an intermediate portion of the body. The body portion can be formed by deforming a steel plate and may have an L-shaped or arcuate crosssection the pins can be in a single or double line. The faller bar can be formed of two side-by-side body portions with the pins mounted between or alongside them. The plastics layer on the faller bar can be provided with a protruberance or brushes to clean fibres from other faller bars. The faller bar can be driven by screws.
Patent GB-1295171-A (GB)
IPC: F16F7/10
Filed: 1970-02-03
Abstract: 1295171 Vibration damping B C SILVESTER 3 Feb 1970 5068/70 Heading F2S An apparatus for minimizing transmission of vibrations from one body 20 to another 21, consists of means 22, 23 attachable to the respective bodies and linked by means 24 carrying an inertia mass M. The linkage is required to be such that the movement of the mass M in consequence of displacement of one of the bodies reacts on the other body in antiphase to the forces transmitted directly from the one body to the other. This is achieved by making the means 24 a lever loaded at its free end by the mass M. It is also required that there be resilience in the connections between the means 22, 23, 24; this is achieved by making at least one of the pivots 25, 26 flexible. Additional resilient means such as a spring 28 may be provided and this spring may be loaded by a further inertia mass 31, Fig. 4 (not shown). In Fig. 3, the relative movement is considered to be an up-and-down movement. If the bodies 20 and 21 are rotating in parallel planes, relative rotary movement may be minimized by connecting the resiliently coupled mass and lever arrangement of Fig. 3 to the bodies in such manner that the lever swings in the plane of relative rotary movement of the bodies. Thus, in Fig. 9, torsional vibration in the coupling between two shafts 40, 41 is minimized by providing, in addition to a set of drive-transmitting elements 42 (of which only one is visible in the plane of the drawing), a weighted lever 24 which swings in a radial plane and is connected by means 22, 23 corresponding to those of Fig. 3 to flywheels 20, 21 on the two shafts.
Patent GB-1296253-A (GB)
IPC: B60T8/66
Filed: 1970-03-02
Abstract: 1296253 Anti-skid devices KELSEYHAYE8 CO 2 March 1970 [7 March 1969] 9980/70 Heading F2F A skid control system for a wheeled vehicle having a plurality of wheels being braked by a brake system, comprises modulating means connected to the brakes of at least two wheels for relieving brake actuation in response to a control signal, signal means connected to each said at least two wheels for providing the control signal only when each of said at least two wheels is in a skid condition, the arrangement being such that the control signal will not cause actuation of the modulating means to relieve brake actuation when fewer than said at least two wheels are in a skid condition.
Patent GB-1301416-A (GB)
IPC: A43D37/00
Filed: 1971-05-27
Abstract: 1301416 Boots &c LENINGRADSKOE SPETSIALNOE KONSTRUKTORSKOE BJURO PO PROEKTIROVANIJU KOZHEVENNYKH I OBUVYKH MASHIN 27 May 1971 17405/71 Heading A3B In a shoe bottom roughing machine of the type in which the roughing tool is lowered and raised by rollers 43 on the tool holder engaging starting and end templets 9, 11, the last 45 is clamped between a toe rest 10 and a heel rest 8, one of which moves towards the other to clamp the last 45, and the templets 9, 11 are fixed to heel rest 8 and toe rest 10 respectively so the position of the templets 9, 11 is automatically adjusted according to the size of shoe as the last is clamped. As described the last 45 is mounted on a carriage 3 which is reciprocated along guides 2 below a pair of roughing tools by a piston and cylinder 16. The toe rest 10 and end templet 11 are fixed to an end post 4 of the carriage 3, and the heel rest 8 and starting templet 9 are fixed to a slide 7 which can move along guide rods 6 on the carriage 3. The slide 7 is urged towards the post 4 to clamp the last 45 by tension springs 12. Thus movement of the heel rest 8 into engagement with the last 45 automatically positions the starting templet 9 according to the size of shoe. The machine includes two roughing tools, one at each side of the last, each tool 37 being carried by an arm 26 pivoted to a cross shaft on bracket 17. Each tool is pressed against the last bottom by a spring 44 and a stop 46 determines the initial position of each arm 26 so that the roller 43 is in a position to engage the starting templet. Each arm 26 is raised by a piston and cylinder 47 during the return stroke of the carriage 3. Each roughing tool 37 (Fig. 3) is mounted on the end of a shaft 33 which is coupled by splines to pulley 35 and is mounted in bearings 32 in telescopic members 29, 30 so that the shaft can be moved axially. The shaft 33 and tool 37 are urged towards the shoe by a compression spring 41 until a roller 40 engages the side of the last. Thus the tools 37 follow the lasting margin as the carriage 3 is moved past the tools 37.
Patent GB-1316658-A (GB)
Title: Carburetters for internal combustion engines
IPC: F02M7/08
Filed: 1970-11-19
Abstract: 1316658 Spray carburetters BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 2 Dec 1971 [19 Nov 1970] 54937/70 Addition to 1223921 Heading F1B In a modification of a carburetter as claimed in claim 1 of 1223991, the fuel metering jet 8 Fig. 5 feeds the fuel-discharge orifice 11 through a duct 12 having an air admission orifice 38 and the flow of fuel/air emulsion through the orifice 11 is controlled by a taper needle 39 which is movable in response to manifold depression to regulate the flow area of either the fuel discharge orifice or an orifice located adjacent to or upstream of the fuel discharge orifice. The interior of capsule 40 is subject to the manifold depression and the needle 39 is moved so that the flow area of orifice 11A is smallest when the manifold depression is highest and greatest under full engine load conditions. In another embodiment the needlecontrolled orifice 11A, Fig. 6 is the fuel discharge orifice.