baber/WOPTO huggingface dataset:
Patent GB-514191-A (GB)
Title: Process and apparatus for extracting cellulose from wood or other cellulosic material
IPC: D21C9/08
Filed: 1938-12-23
Abstract: 514,191. Refining cellulose materials. THURINGISCHE ZELLWOLLE AKT.-GES. Dec. 23, 1938, No. 37475. Convention date, Dec. 27, 1937. [Class 2 (ii)] Cellulose is extracted from wood or other cellulosic material by treating the material in a plurality of successive stages with dilute caustic alkali lye, or following the alkali treatment with water for washing, at a constant but adjustable pressure but at a temperature which is different at each stage. The water and/or lye flows continuously through successive batches of material undergoing different stages of treatment until the lye has acquired a sufficient concentration of salts, and alkali solution preferably in concentrated form is added between each stage so that the amount of alkali consumed in one stage is replaced before the lye passes to the next stage. The spent lye or the washing water containing sodium salts may be strengthened in alkali not by addition of alkali solution but by caustification, e.g. by treatment with calcium hydroxide. The water or lye passes from material in the finished or nearly finished condition, through material in earlier stages of treatment and finally through the raw material. The lye at each stage of treatment may contain about 20-30 grams per litre of NaOH. Cellulose suitable for viscose and artificial silk manufacture, is obtained by the process. Sulphite cellulose pulp may be further refined by subjecting it to the process described. As shown in Fig. 1, the cellulosic material is treated with alkali lye and water in closed boilers K1-9 provided with heaters V1-9 for the alkali or water which may be passed from one boiler to the next by way of ring pipe B. Alkali lye from supply pipe D may be introduced into the boilers through dosage pumps A. Water is supplied from a container E and pipe C under constant but adjustable pressure. Fig. 2 represents one stage of the process at which the material is being treated with alkali in boilers 5-9 and with water in boilers 3, 4. Boilers 3-9 are connected through valves j, o, p, and pre- 'heaters V (Fig. 1). Water for boiler 3 flows from pipe C and preheater V3, and alkali is added at A to each boiler 5-9, the lye, rich in dissolved salts, flowing from the last boiler 9 through valve m, pipe P, and valve N to a regenerating plant. When the material in boiler 2 is completely boiled and washed it is removed by pipe X. Boiler 1 is filled with raw material. When the density of the lye from boiler 9 falls below a determined value it is not sent to the recovery apparatus but is mixed with alkali through cock W and passed through pipe L and valve r to boiler 1 for treating a fresh batch of material. The quantity of lye removed from boiler 9 is replaced by an equal amount of fresh lye at boiler 5. As shown in Fig. 3, the material in boiler 5 is completely treated with alkali, the supply of which is stopped. When boiler 1 is filled with lye, boiler 5 is' supplied with water, and the lye from boiler 1 is passed to the regenerating device.
Patent GB-914395-A (GB)
Title: Die-formed sheet metal structures and method of making the same
IPC: B21D53/88
Filed: 1961-10-19
Abstract: 914,395. Making metal structures for vehicle bodies. BUDD CO. Oct. 19, 1961 [Oct. 20, 1960], No. 37477/61. Class 83 (2). A method of making a die formed sheet metal structure such as an inner side panel for a four-door saloon car, comprises welding together along the weld lines A, B, C, D, E, F and G a number of metal sheets 10, 11a, 11b, 12, 13 and 14 of different thicknesses and die forming the composite sheet in a single stamping. An outer side panel structure may besimilarly formed and the two joined by welding to form a box section panel. Roll mash welding is preferred.
Patent GB-1213657-A (GB)
Title: A multiple electrical contact assembly
Inventor: COLLIER JOHN COVELL
IPC: G06K7/04
Filed: 1967-08-15
Abstract: 1,213,657. Card readers. AMP Inc. 22 July, 1968 [15 Aug., 1967], No. 37477/67. Heading G4M. [Also in Division H1] A card reader comprises an array of sensor members 3 each of which is carried at the end of a flexible arm 1 having along its length an area arranged to make and/or break contact with a fixed contact 4 extending transversely to the direction of movement of arm 1 and each row of arms 1 being formed by a sheet metal stamping. Each row of arms 1 is formed integrally with a common bus member 2, and the contacts 4 associated with corresponding arms 1 in the different rows may be formed by a common rod, tape or foil cable. The members 2 may be separated by insulating plates 5. A pair of members 2 with associated arms 1 may be provided for each row to increase sensing reliability, and each arm 1 may have a notch to provide two points of contact with rod 4. Isolating diodes may be incorporated into the structure. Rods 4 may be moved longitudinally to present fresh areas of contact to compensate for wear.
Patent GB-1512543-A (GB)
Title: Cholestane derivatives and their preparation
IPC: C07J9/00
Filed: 1975-09-12
Abstract: 1512543 Cholestane derivatives UPJOHN CO 12 Sept 1975 [10 Oct 1974] 37517/75 Heading C2U Novel steroids have the formulµ wherein R<SP>1</SP> is H or CH 3  and R<SP>2</SP> is C 1-6  alkyl. They are prepared by condensing an aldehyde of the formula with an ylide of the formula to form (IV), and selectively epoxidizing these to form (V) using a (C 2-5  peralkanoic acid or a C 7-11  per arylcarboxylic acid, and are converted to steroids of the formula by hydrogenation in the presence of a noble metal catalyst. The last-mentioned steroids may be converted to the corresponding 3# alkanoyloxy - #<SP>5</SP> - 6 - unsubstituted steroids by reaction with C 2-6  alkanoic acids, a typical product being 25-hydroxy cholesteryl acetate. The aforementioned ylide is prepared in situ by addition of n-butyl lithium to the phosphonium salt the preparation of which is described in the divided Specification 1,512,544.
Patent GB-1080200-A (GB)
Title: Improvements in or relating to bath head-rests
IPC: A47K3/12
Filed: 1966-08-22
Abstract: 1,080,200. Head rests. J. A. HAMILTON. Aug. 22, 1966, No. 37590/66. Heading A4M. The disclosure is included in that of Specification 886,178 in the form in which it was accepted.
Patent GB-1158745-A (GB)
Title: Lasting Machine
Inventor: KAMBORIAN JACOB SIMON
IPC: A43D21/00
Filed: 1968-02-23
Abstract: 1,158,745. Boots &c. J. S. KAMBORIAN. 23 Feb., 1968 [8 March, 1967], No. 37724/68. Divided out of 1,158,743. Heading A3B. The subject-matter of this specification forms part of that described in Specification 1,158,743 but the claims are concerned with a lasting machine having a toe head which is pivoted at its front end to the piston rod of a first air motor and at its rear end to a lever pivoted to the machine frame and connected to the piston rod of a second air motor, the arrangement being such that initially the second air motor is actuated to swing the toe head from a retracted position to a position above the shoe and then the first air motor is actuated to swing the toe head downwardly until the wipers are just below the level of the insole.
Patent GB-1511876-A (GB)
Title: Process for detoxificating aqueous formaldehyde-containing effluents
IPC: C07C47/058
Filed: 1975-09-15
Abstract: The waste water is first preheated with alkaline-reacting substances to a temperature of at least 50 DEG C. As a consequence of this pretreatment, to remove the formaldehyde only 10 to 35% by weight of the amount of hydrogen peroxide equivalent to the formaldehyde is required.
Patent GB-1056550-A (GB)
Title: Electronics pulse generating systems
IPC: H03K5/15
Filed: 1964-09-16
Abstract: 1,056,550. Electronic counters. RADIO CORPORATION OF AMERICA. Sept. 16, 1964 [Sept. 27, 1963], No. 37826/64. Heading G4A. A pulse oscillator output is changed in frequency by applying it in two opposite phases to two shift registers and selecting the outputs of particular bi-stable circuits in the registers to operate a series of gates which deliver pulses in succession. The system may also be used to give only one pulse per output channel. In Fig. 1 each shift register has three stages C0, C2, C4 and C1, C3, C5, the stage C1 being operated by the output of CO. The first stage CO is set by a " run " bi-stable circuit 14 which is controlled by gates 16, 18, 20. The output pulses are taken from NAND gates G0-G8 (Fig. 2) each of which is opened when the indicated bistable circuits in the registers are in particular states. The operation is commenced by switching on at 24 to energize the gate 18 to allow oscillator pulses to pass to the S terminal of the " run " bi-stable circuit 14. Successive oscillator pulses alternately of phase A and phase B then change over the " run " and " register " bistable circuits in sequence to advance the shift registers and operate the gates in the decoder. Pulses C2 and C3 also operate gate 16 to reset the " run " bi-stable circuit; this changes over CO and successive oscillator pulses reset the other bi-stable circuits in the registers. When C4 has been reset, gate G8 is operated to provide a stop pulse at CP. In the example described, the " run " bi-stable circuit produces from consecutive " 1 "s followed by four consecutive '' 0 "s. If the sequence is to be repetitive, switch 22 is closed so that the " run " bi-stable circuit is set by the output of C4 and the cycle recommences, no " stop " pulse being emitted at CP. Inverters 10-18 are included if negative outputs are required, e.g. as timing pulses for NAND gates. A number of decoders of the type of Fig. 2 but with different numbers of gates can be coupled to the circuit of Fig. 1 to provide outputs of different frequencies. These decoders can be switched in or out by signals on the line S8. The gates in the decoders may have more than two inputs.
Patent GB-832125-A (GB)
Title: Improvements in hydraulic mechanisms for taking-up clearance in the valve gear of aninternal combustion engine
IPC: F01L1/24
Filed: 1957-12-05
Abstract: 832,125. Valve gear. ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR S. A., DES. Dec. 5, 1957 [Dec. 19, 1956], No. 37920/57. Class 7(6) A hydraulic clearance adjuster 11 comprises a piston 30, Fig. 2, with non-return valve 31 dividing a pressure chamber B from a supply chamber A, and elastic means acting upon a movable member 32 closing the'end of chamber B and creating a pressure which acts upon an effective area of the piston equal to that of the piston rod 30a to urge it in the direction to take up valve clearance. As shown, the valve rocker 1, Fig. 1, of an overhead valve engine is mounted on a movable fulcrum 4, which is adjusted to take up valve clearance by the hydraulic adjuster 11, The fulcrum 4 is slidably supported on a bolt 5 screwed to the cylinder head 6 and bears against a lever 7 pivoted at one end on an adjustable screw 9 and resting at the other end on the piston rod 30a, Fig. 2. The reservoir A is closed by a stationary sealed plug 27 and the space C is filled with nitrogen under pressure. The non-return valve 31 comprises a split ring, Fig. 2a, the split 31c in which permits a predetermined small leakage from the pressure space B to the supply space A when the lever 7 is under load during operation of the rocker. Upward movement of piston 30 is resisted by the pressure in space B, the non-return valve being closed, but if clearance develops in the valve gear piston 30 is forced down due to the differential action on the piston of the pressures in spaces B and A set up by the gas formed in space C. In a modification, the gas pressure in space C is replaced by a leaf spring and in Fig. 4 the pressure in space B is developed by a spring-loaded plunger 37 urged into space B.
Patent GB-350978-A (GB)
Title: Manufacture of polyvinyl ester colour lakes, fast to light and water
IPC: C09D131/04
Filed: 1929-12-11
Abstract: Coloured varnishes, fast to light and water, are made by incorporating with polyvinyl esters the dyestuff salts formed from dyestuff sulphonic, carboxylic, or sulphonated carboxylic acids with organic bases, or from basic dyestuffs with acids.  Salts specified for use with vinyl acetate are: the cyclohexylamine salt of 1 : 5-di-paratoluido-anthraquinone-disulphonic acid; the dicyclohexylamine salt of the azo-dyestuff from 2 : 3 : 6 : 8-naphtholtrisulphonic acid and amino-azobenzene disulphonic acid; the salt of an organic ammonia base with the azo-dyestuff from ortho-aniline sulphonic acid and 1-(2<1>-sulphophenyl)-5-pyrazolone-3-carboxylic acid; the salt of tannin with the triphenylmethane dyestuff from diethylmeta-aminophenol with phthalic anhydride; the salt of phosphoromolybdo-tungstic acid with penta-methyltriaminotri-phenyl carbinol anyhdride; the cyclohexylamine salt of 1 : 5-di-(4<1>-methyl-2<1>-sulpho-1<1>-aminophenyl) -anthraquinone; the salt of an organic ammonia base with the dyestuff from amino-azotoluene and 1-naphthol-3 : 6-disulphonic acid.ALSO:Coloured varnishes, fast to light and water are made by incorporating with polyvinyl esters the dyestuff salts formed from dyestuff sulphonic, carboxylic or sulphonated carboxylic acids with organic bases, or from basic dyestuffs with acids.  Salts specified for use with vinyl acetate resin varnishes are: the cyclohexylamine salt of 1 : 5-di-p-toluido-anthraquinone-disulphonic acid; the dicyclohexylamine salt of the azo dyestuff from 2 : 3 : 6 : 8-naphtholtrisulphonic acid and aminoazobenzene disulphonic acid; the salt of an organic ammonia base, such as dicyclohexylamine, with the azo-dyestuff from o-aniline sulphonic acid and 1-(21-sulphophenyl)-5-pyrazolone-3-carboxylic acid; the salt of tannin with the triphenylmethane dyestuff from diethyl-m-aminophenol with phthalic anhydride; the salt of phospho-molybdo-tungstic acid with pentamethyltriamino-triphenylcarbinol anhydride; the cyclohexylamine salt of 1 : 5-di-(41-methyl-21-sulpho-11-aminophenyl) -anthraquinone; the salt of an organic ammonia base with the dyestuff from aminoazo-toluene and 1-naphthol - 3 : 6-disulphonic acid.
Patent GB-367966-A (GB)
Title: Improved process and apparatus for the manufacture of water gas or producer gas together with the simultaneous cracking of hydrocarbon oils
IPC: C10J1/213
Filed: 1930-12-19
Abstract: <PICT:0367966/III/1> In the cracking of hydrocarbon oils simultaneously with the production of oil gas by passing water gas or producer gas into a reaction chamber to which oil vapour, produced in a separate apparatus, is also admitted, the temperature of the gas is maintained above 900 DEG  F. and the reaction chamber is kept free of surfaces such as checker-work which may cause local overheating. Water gas from a generator 10 and superheater 25, which set may be in duplicate, passes through offtake 33 to the reaction chamber 36 where it mixes with hydrocarbon vapour from the vaporizing apparatus 40. The latter comprises an evaporating coil 42, fed with oil from a pipe 74, and heated by a burner 48.  A flash drum 44 is interposed between the coil and the reaction chamber.  The temperature of the latter is regulated by passing "tempering" gas into the chamber from a source 50, a temperature of 950-1050 DEG  F. being preferred.  The oil gas passes to a scrubber 56 using heavy oil, to a rectifier 72 using cooled oil and then to the main 89, after passing through a condensing unit 83-85; petrol oils collect in the condenser 85.  The oil from the rectifier may be used in the evaporating coil.  A portion of the gas from the main 89 may be supplied after stripping to the source 50.
Patent GB-937175-A (GB)
Title: Improvements in cavity resonators
IPC: H01P7/06
Filed: 1959-11-12
Abstract: 937,175. Tunable cavity resonators. BUDAVOX BUDAPESTI HIRADASTECHNIKAI VALLALAT. Nov. 12, 1959 [Nov. 19, 1958], No. 38481/59. Class 40 (8). A cavity resonator comprises interconnected tuning elements for varying the quality factor constructed of materials having differing loss factors, the dimensions of the tuning elements being such that the resonance frequency of the cavity is not varied by their common movements. A tuning piston 3 is movable in the tube 2 in the wall of the cavity resonator 1 by the insulated rod 4 and is made of high loss materials such as iron powder cores, or insulating materials saturated with graphite, or a ferromagnetic material. A second tuning piston 6 is movable in the tube 5 by the insulated rod 7 and is made of insulating material or metal having a different loss factor from that of the piston 3. The rods 4 and 7 can be connected together directly by the rod 8 or indirectly by a transmission system. A magnet can be used for moving the rod 8.
Patent GB-1476487-A (GB)
Title: Manufacture of lead dioxide/titanium composite electrodes
IPC: C25B11/16
Filed: 1974-09-04
Abstract: 1476487 Lead dioxide/titanium electrodes BASF AG 4 Sept 1974 [5 Sept 1973 29 July 1974] 38595/74 Heading C7B A PbO 2 /Ti composite electrode, for an anode in a high current density cell, is made by anodic deposition of PbO 2  on an intermediate layer of a  carbide or boride of Ti, Ta, Zr, Hf, V or Nb and/or a (di) silicide of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W and/or SiC applied to a Ti surface, e.g. by plasma or cathodic spraying, flame spraying, (chemical) vapour or electro-phoretic deposition. A carbide or boride may be applied by plasma spraying a powder thereof having a particle size of 15-90Á; or a layer 20-200Á thick and containing silicide and/or SiC modified with Fe, Ni, Co or a halide thereof may be applied. The Ti e.g. expanded mesh may be cleaned by sand or corundum blasting prior to coating. PbO 2  may be anodically deposited from a solution containing 1 to 25%Pb(II) nitrate or perchlorate, optionally up to 0À5%Cu(NO 3 ) 2  and up to 0À2% wetting agent based on ethoxylated alcohol, using a Cu sheet cathode at CD 1 to 10 A/dm<SP>2</SP>, the pH being maintained between 1 and 5 by adding PbCO 3 .
Patent GB-1435137-A (GB)
Title: Steam power installations
IPC: F22B37/52
Filed: 1973-08-15
Abstract: 1435137 Feedwater purification in steam power plant KRAFTWERK UNION AG 15 Aug 1973 [22 Aug 1972] 38656/73 Heading F4A In a steam power plant in which a boiling water nuclear reactor 10 generates steam to drive a turbine 1 linked to a generator 2 and exhaust steam is passed to a condenser 3 to be returned via a condensate vessel 37 to the reactor, the vessel 37 is formed in part from ferritic material and is connected in parallel with an electromagnetic filter 12. Steam bled from the turbine is fed to low pressure 5, 36 and high pressure 9 preheaters and to the condensate vessel and a purification unit 6 is provided. In preparation for operating the plant valves 13, 14, 15 and 16 are first opened and pump 11 circulates water in the vessel 37 through the filter 12; then valve 16 is closed and valves 18, 20, and 23 are opened to filter water in the preheater 9 via line 19; valve 23 is next closed and valves 21 and 30 are opened to allow water in condenser 3, and preheaters 5 and 36 to be filtered; finally valve 30 is closed to filter the water in unit 6. The plant is then ready for operation and during the operation of the plant only valves 8, 13, 14, 15 and 16 remain open. A form of condensate vessel is described (Fig. 2, not shown) which is internally divided into 1st and 2nd zones by an apertured partition, the input from the condenser and outlet to the filter 12 being in the 1st zone, and the inlet from the filter and outlet to the boiler being in the 2nd zone.
Patent GB-367971-A (GB)
Title: Improvements relating to wagon tipplers
IPC: B65G67/00
Filed: 1930-12-23
Abstract: 367,971. Weighing- apparatus fitted to tipplers. WEST, E. and WEST'S GAS IMPROVEMENT CO., Ltd., Albion Ironworks, Miles Platting, Manchester. Dec. 23, 1930, No. 38723. [Class 143.] In a wagon tippler of the kind in which the wagon is carried on a platform h mounted on a frame a which has a tipping movement about c, a weighbridge i is so located that when the tippler is brought to rest in a position in which the wagon can be run on to the rails on the platform h, the unbalanced weight of the tippler on the side of the pivot c carrying the platform h, is imposed upon the weighbridge. The platform h is pivoted to an extension g of the frame a and is supported on the weighbridge by rollers h2, h<1>, h<4> and distance pieces h3. Ramps l, fixed or adjustably mounted on the weighbridge supports, engage the rollers h<1>, on the return of the tippler so as to bring the platform h to rest on the weighbridge without shock. Ramps may also be provided to engage the rollers h4. Wedges may be inserted between the ends of the platform h and the supporting ledges to protect the weighbridge when not required for use. An adjustable counterbalance may be provided at b. Specifications 194,812 and 323,257, [both in Class 78 (iv), Loading &c.], are referred to.
Patent GB-862777-A (GB)
Title: Improvements in or relating to a method of and device for stirring steels during their solidification
IPC: B22D27/00
Filed: 1958-12-01
Abstract: 862,777. Casting-processes. U.C.P.M.I. (Union de Consommatuers de Produits Metallurgiques et Industriels). Dec. 1, 1958 [Dec. 3, 1957; June 13, 1958], No. 38730/58. Drawings to Specification. Class 83 (1). Carbon-monoxide is blown upwardly through cast-ingots at such a rate and pressure that a strong stirring-effect is achieved, the blowing being continued until there remains only that amount of liquid necessary for welding the metal crystals together. Additives such as carbon, metal powders &c. may accompany the gas, and the solidification of the top may be retarded, as by the use of exothermic materials thereon to allow the escape of gases. The CO may be supplied through a porous bottom brick, or a pipe penetrating into the mould.
Patent GB-896548-A (GB)
Title: Improvements in or relating to torsional vibration dampers
IPC: F16F15/14
Filed: 1960-11-11
Abstract: 896,548. Torsional vibration dampers. SCHWITZER CORPORATION. Nov. 11, 1960 [Nov. 12, 1959], No. 38739/60. Class 108(3). In a torsional vibration damper the inertia member 20, Fig. 1, has a frusto-conical face 20a spaced from a frustoconical face 10a of the driving member 10 by a frusto-conical elastic element 21. The elements are' also spaced axially by an. annular insert 28 arranged between radial faces 26, 26a and having predetermined frictional characteristics. The insert 28 may pre-compress the elastic element 21 and may also be loaded through a spring washer which takes up wear in operation.
Patent GB-855776-A (GB)
Title: Manufacture of blades of internal combustion turbine engines
Inventor: ECCLES GEORGE OSWALD
IPC: B21C23/16
Filed: 1957-12-13
Abstract: 855,776. Making turbine blades; extruding. ROLLS-ROYCE Ltd. Dec. 12, 1958 [Dec. 13, 1957], No. 38938/57. Classes 83 (2) and 83 (4). A gas-turbine having cooling or heating passageways 15, Fig. 9, is made by extruding a billet in a die 11, Fig. 11 (not shown), to provide a solid aerofoil portion 12, Fig. 3, at one end, drilling blind holes 15 in the non- extruded portion 13 substantially to the plane of shoulder 14, inserting a filler such as rods of mild steel into the holes, extruding a further portion 16, Fig. 4, of the billet adjacent the first extruded portion 12 through a larger die, Fig. 12 (not shown), so as to form a blade portion 16 whilst leaving portion 12 untouched, upsetting the portion 12, Fig. 5 (not shown), drilling holes 18 in the upset portion 12b, Fig. 7 (not shown), machining the upset portion to provide a root 19 and platform 21, machining the non-extruded end 17 to provide a shroud 17a, machining the blade portion 16 to final shape and removing the filler. The latter may be done by dissolving in acid as described in Specification 833,522. The billet is preferably of nickel-chrome alloy. During the second extrusion step the holes are deformed to elliptical section as described in Specification 826,498, and the blade portion 16 may be twisted. Alternatively, twisting may be performed immediately following the second extrusion.