baber/WOPTO huggingface dataset:
Patent GB-1045689-A (GB)
Title: Exhaust scroll for axial flow turbomachines, such as turbines and compressors
IPC: F01D25/30
Filed: 1963-08-02
Abstract: 1,045,689. Turbines axial flow compressors. GENERAL ELECTRIC CO. Aug. 2, 1963 [Aug. 3, 1962], No. 30779/63. Headings F1C and F1T. A toroidal steam turbine exhaust scroll 9 has one peripheral edge 10 attached to a casing 5 surrounding the turbine 3 and the other edge 12 carrying a seal 13 co-operating with the rotor shaft 1. The casing 5 carries an annular plate 20 to divide the scroll 9 into two chambers 17, 22. Steam leaving the turbine 3 axially flows outwards in the direction of arrow 16 and part is deflected by plate 20 to flow circumferentially towards an outlet 18. The remaining steam enters chamber 22 through gap 21 and is also deflected to flow circumferentially but with a whirl component 23. In a modification, Fig. 3 (not shown), the plate (26) is semi-annular over an arc adjacent the outlet 18. The construction is applicable also to compressors and reduces the back pressure on the machine.
Patent GB-153792-A (GB)
Title: Process of manufacturing iron compounds
IPC: C01G49/06
Filed: 1919-12-09
Abstract: 153,792. Marks, E. C. R., (West Coast Kalsomine Co.). Dec. 9, 1919. Ferric hydrate; basic iron salts.-Ferric hydrate together with a small quantity of a basic salt, is continuously precipitated when air or other gaseous oxidizing-agent is passed, under pressure into a hot solution of a ferrous or ferric salt, in which is suspended metallic iron. The air &c. is passed into the solution 1 through the perforated pipe 2, and the solution is kept at about 60‹ C. by means of the steam-pipe 4, or by employing heated air or air together with steam for the oxidation of the iron salt. When the precipitate has attained the desired colour, it is filtered off and calcined to form red oxide, or just dried, for use as a pigment.
Patent GB-1174851-A (GB)
Title: Sensitization Process for Electroless Plating
Inventor: ROGER LENARD LEE
IPC: C23C18/28
Filed: 1967-07-05
Abstract: 1,174,851. Sensitization for electroless plating. TECHNOGRAPH Ltd. June 28, 1968 [July 5, 1967], No.30882/67. Headings C7E and C7F. A solution for sensitizing surfaces prior to electroless deposition of metal contains a precious metal salt, a stannous salt, and a water-soluble hydroxyl-group-containing organic compound, which acts as a stabilizer. The solution preferably contains 0À2 to 2 g/l precious metal chloride, 20-80 g/l SnCl 2 , and 25-400 ml/1 of 37% aqueous HCl. The hydroxyl compound may be one of the following, used in an amount not less than that indicated: ethylene glycol, 25% V/V, isopropyl alcohol 25% V/V, glycerol 12À5% V/V, or sucrose, 40 g/l. However, the hydroxyl compound is preferably an aromatic hydroxyl compound more water-soluble than phenol, e.g. resorcinol, a sulphonated phenol, catechol, quinol, pyrogallol, or phloroglucinol, used in amounts of 30 to 50 g/l. Prior to sensitization, the following steps may be carried out: (1) abrasive scrubbing (for heavily soiled surface) (2) etching/degreasing, rising for instance a soluble ammonium salt and a quaternary organic amine salt surfactant such as cetyl pyridinium bromide, (3) metal oxide removal (metal surfaces only) using a chelating agent such as E.D.T.A. disodium salt, dipotassium tartrate, or citric acid/ammonia and (4) rinsing with HCl, possibly containing SnCl 2 .
Patent GB-1183523-A (GB)
Title: Improvements in or relating to hydraulic brake pressure control devices
Inventor: YARDLEY ALFRED
IPC: B60T8/26
Filed: 1966-07-11
Abstract: 1,183,523. Brake control valves; valves. GIRLING Ltd. 14 June, 1967 [11 July, 1966], No. 30967/66. Headings F2F and F2V. In a brake control valve whose outlet pressure at 3, Fig. 1, is reduced relatively to its inlet pressure at 2 as the latter increases, by repeated opening and closing of a valve closure assembly, the assembly comprises a resilient seal 12 and a support member 14 arranged to support the seal against the pressure difference across it during and after closure of the valve, to avoid damage from extrusion or attrition of the seal. As inlet 2 pressure increases, a piston 8 is forced to the left against a control spring 18, a head 9 on the piston forcing seal 12 against a seat 6 to close the valve and the support member 14 is urged by a spring 17 in the same direction to engage the seat 6 before the seal engages it to prevent extrusion of the latter. Further increase in inlet pressure moves the piston to the right, and the cycle repeats. On release of inlet pressure, leakage through channels 11, 16, 19 equalizes the pressures. and the piston returns to the open position. The valves of Figs. 2 and 3 (not shown), are similar to the above, the load-sensitive valve of Fig. 3 having a cap (31) subject to, for example, rear axle loading which acts to assist the control spring (18A). In another embodiment (Fig. 4, not shown) valve closure is effected by a cup washer type of seal (12) being forced into a bore (5), a support member (14) moving with it to engage a shoulder (6) and provide a smooth passage for the seal across the shoulder (6). In another embodiment (Fig. 5, not shown) valve closure is effected by movement of a piston (4) into a stationary seal (12), smooth entry being achieved by arranging inside the seal a support member (34) which is of the same external diameter as the piston (4) and which is engaged by the piston before the latter enters the seal.
Patent GB-645528-A (GB)
Title: Improvements in and relating to change-speed gearing
IPC: F16D23/10
Filed: 1948-11-29
Abstract: 645,528. Claw and ratchet clutches. SINCLAIR, H. Nov. 29, 1948, No. 30970. [Class 80(ii)]  In a double clutch of the kind described in Specification 525,683 and incorporated in change-speed gearing as shown therein, with or without auxiliary locking means, the sides of the teeth 22, Fig. 5, of the intermediate nut member, and/or the engaging sides of the alternately short and long teeth 18, 18A and 23, 23A of the driving and reaction members, are inclined as shown over part or all of their widths " in such a manner that the corners liable to impact during gear-changing are set back in the axial direction as compared with the corners not liable to such impact." Figs. 6-8 show a specific form of tooth 22 according to the invention, the teeth 18, 18A, 23 and 23A being complementary in profile to this tooth.
Patent GB-862758-A (GB)
Title: Vaporisation of liquefied gases
Inventor: FORREST JOHN
IPC: F17C9/02
Filed: 1958-09-29
Abstract: 862,758. Revaporization of liquefied gases. BRITISH OXYGEN CO. Ltd. Sept. 22, 1959 [Sept. 29, 1958], No. 30993/58. Class 8(2). The liquefied gas, e.g. oxygen vaporizing section of a combined vaporizing and superheating tube is packed by randomly disposed elements e.g., Rashing rings held in position by perforated end plates and serving to reduce pressure surging.
Patent GB-430698-A (GB)
Title: Improvements in liquid controlled brake mechanism
IPC: B66D5/26
Filed: 1934-10-29
Abstract: 430,698. Brakes. DOWSON & DOBSON, Ltd., Marshall Street, Johannesburg, South Africa. Oct. 29, 1934, No. 31021. Convention date, June 2. [Class 103 (i)] A brake for hoisting apparatus is controlled by the flow of fluid through a restricted channel controlled by the acceleration and deceleration of the load. The brake on the hoist shaft is applied by a weight held raised by steam or compressed air beneath the piston of the brake engine. The descent of the weight is controlled by a dash-pot the flow of fluid from one end to the other of which is controlled by a valve operated by an inverted governor driven from the hoist shaft. The governor comprises a flywheel 17 fixed on a shaft 16 having a screw-thread connection 24 to a shaft 21 driven by gears 26, 27 from the hoist. When the brake is applied the inertia of the flywheel tends to keep it rotating at the same speed and the shaft 21 is moved axially by the screw-thread 24 and closes the dash pot control valve by a sleeve 28 carrying pins 30 passing through slots in the shaft supporting sleeve 15 and engaging in forks in the valve operating lever 39. The pins are held in middle position by springs 33, 34. The valve is closed by movement of the pins in either direction from this middle position so that the control is effective for either direction of rotation of the hoist.
Patent GB-1259995-A (GB)
Title: Variable pitch propeller or rotor
Inventor: MOUILLE RENE
IPC: F01D7/00
Filed: 1969-06-19
Abstract: 1,259,995. Variable pitch propeller. SUDAVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. 19 June, 1969 [11 July, 1968], No. 31100/69. Headings B7G and B7V. [Also in Division F1] In a variable pitch propeller each of the blades 28 has a hollowcylindrical end 29, rotatably mounted in a flexible plastic sleeve 27 secured in hub 22. A laminated torsion arm 36 connects each blade 28 to the drive shaft 4. Pitch control is effected by control rod 12 which causes axial movement of shaft 13 and slide member 15 which carries a plate 18 having lugs 19 which are each linked to a pitch control lever 30 on the hollow cylindrical part 29 of the propeller blades 28 through resilient rings 32. The blades are driven by drive shaft 7 through bevel gear-wheels 5 and 6.
Patent GB-1346256-A (GB)
Title: Data processing apparatus
IPC: G06F9/26
Filed: 1971-07-02
Abstract: 1346256 Data processing system BELL PUNCH CO Ltd 2 July 1971 [14 Sept 1970] 31116/71 Heading G4A A data processing system includes an input shift register, an address register coupled to the input shift register, a main memory shift register coupled to the input shift register, timing means arranged to provide timing signals for the shift registers, and a read only memory addressed by the address register, arranged to generate command signals, and having three outputs, two being connected via gate and flag means respectively to the address register, and the third to the main memory shift register. The flag means operates in response to a command signal to determine the choice of subsequent alternative command signals. Programs, of which a number of examples are given, are wired into read only memory 14 which is addressed by address register 13 which receives data from input shift register 7 which in turn is fed from one of a number of data sources which include magnetic tapes and a keyboard. The data are ASCII coded signals, data being distinguished from instructions by the state of the eighth and last bit of each input word. All data inputs access the same ROM address in order to access a data input routine. Twelve bit words are read from the ROM and contain a two bit operation code. Instructions are normally accessed in sequence from the read only memory, the address register being incremented. However jump instructions are possible, the interrupted instruction address being held in an auxiliary register 16 for later re-entry. The sub-routines may be for error diagnosis and may be selected in accordance with the setting of flags 24. The main memory is a recirculating shift register and an output display device which may include a number of selectively bit lamps is provided. Two counters are provided, the contents being compared to ensure that the expected amount of data is in fact located in the memory.
Patent GB-369914-A (GB)
Title: Improvements in or relating to the treatment of textile yarns or fibres
IPC: D06B5/16
Filed: 1930-10-17
Abstract: <PICT:0369914/IV/1> Textile yarns are treated with hydrophiling agents, i.e. with soapy or oleaginous agents capable of removing matter which normally tends to resist penetration of the fibre by water or water-carried compounds, and then sized.  The pretreatment with hydrophiling agents leads to a uniform penetration of the yarn by the size, which is of particular advantage when the sized yarns are subsequently detwisted.  The hydrophiling treatment may be applied either to the yarn or to the raw fibre or any intermediate product, alkaline sulphonated oils being particularly suitable as hydrophiling agents.  The hydrophiling and sizing are preferably carried out on the yarn in package or cheese form.  For this purpose the packages or cheeses 9 are mounted on perforated tubes 6 in a kettle 1 having a removable top 3 and a bottom 4 supporting an interior false bottom 5 carrying the tubes.  The hydrophiling or sizing liquid is placed in a tank 13 connected to the kettle through pipes 14, 19, 20, and forced through the cheeses in either direction, according to the setting of a valve 17, by means of a pump 15.  For the hydrophiling treatment, an aqueous solution of sulphonated castor oil and soda ash is employed, while the sizing liquid may comprise a mixture of sago flour, sulphonated castor oil, and water.  The cover of the kettle is provided with an opening 23 through which strands of yarn may be removed from one of the packages 9 for testing purposes. After sizing, the yarn may be brushed and partly dried, and then detwisted by placing the cop in a twisting frame and rotating it in a direction to untwist the yarn.
Patent GB-896345-A (GB)
Title: Fluid filtering medium and method of making such medium
IPC: B01D39/00
Filed: 1958-09-30
Abstract: A fluid absorbent is distributed in a bed of finely-divided, low-density, fibrous material which is interconnected and bonded to form an indeterminate maze of interstices.  The diameter of the absorbent particles is larger, preferably one hundred times larger, than the diameter of the fibres.  The fibrous material may be glass.
Patent GB-621851-A (GB)
Title: Improvements in or relating to electric frequency responsive systems
IPC: H02P25/02
Filed: 1945-11-20
Abstract: 621,851. Synchronizing; condenser arrangements. IGRANIC ELECTRIC CO., Ltd. Nov. 20, 1945, No. 31172. Convention date, Nov. 20, 1944. [Class 38 (iv)] [Also in Group XXXVII] A frequency-responsive system comprises a condenser, means adapted to respond upon said condenser being charged to a given potential, means for supplying energy at a given rate to said condenser to charge the same, and means for affording periodic discharge of said condenser at a periodicity varying as a function of a varying frequency of the system, whereby the attainment of said given potential by said condenser and the consequent response of said first-named means is dependent upon said frequency. The system may be applied to the starting of a synchronous motor 3, the armature 3a of which is energized with alternating- current upon closure of a main switch 2. The field winding 3b of the motor is adapted to be so energized, through a transformer 4 and gasfilled rectifying valves 5 and 6, that the field winding is supplied with direct-current when the rotating motor armature reaches a speed near synchronism. Initially, the winding 3b is connected in parallel with a resistor 25 and provides starting-operation as an induction motor. When the slip-frequency falls to a predetermined value a relay 24 disconnects the resistor 25. The grid-cathode circuits of the valves 5 and 6 each comprise a portion of a transformer secondary winding 7b, a condenser 14, and a portion of an adjustable voltagedivider 21, which is supplied with rectified current from a transformer 20. The voltage derived from the winding 7b is such as normally to block the valves 5 and 6, but it has a positive direct-current component, derived from the condenser 14, super-imposed upon it. A small adjustable positive bias voltage is derived from the element 21. The condenser 14 is charged through a transformer 10 and a valve 11 and is discharged through a valve 15, the grid-cathode circuit of which comprises the secondary winding of a transformer 17 having a primary winding connected across the field-winding 3b. Due to the high initial frequency of the current supplied to the transformer 17, the frequency of the periods, during which the valve 15 becomes conductive to discharge the condenser, is high, but as the motor accelerates, the frequency of such periods decreases until, at a pre-determined low value of the slip-frequency, the condenser-voltage rises sufficiently to render the valves 5 and 6 conductive. If the motor falls out of synchronism the direct-current field excitation is stopped. When the disturbance is removed, re-synchronization is effected in a manner similar to that described.
Patent GB-684805-A (GB)
Title: Improvements in or relating to neutralising circuits for high frequency push-pull connected multi-grid valve amplifiers
Inventor: WISE JOHN STUART
IPC: H03F1/16
Filed: 1950-12-21
Abstract: 684,805. Valve amplifying circuits; radio transmitting apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 17, 1951 [Dec. 21, 1950], No. 31174/50. Classes 40 (v) and 40 (vi). A push-pull multigrid valve amplifier is neutralized by means of cross-connected condensers 23, 24, each of which connects the screen grid of one valve to the control grid of the other. To prevent induced voltages due to the anode-anode voltage swing, the screen grids are connected to one another through a condenser 22 which may alternatively be of the centretapped type with the mid-point earthed. Very high order instability is prevented by means of series grid resistances 25, 27 which are shunted for normal working frequencies by inductances 26, 28, respectively. Each of the neutralizing condensers may comprise a flat or semi-cylindrical plate supported on the screen-grid pin of the corresponding valve holder, the co-operating electrodes comprising similar plates carried on a common insulating rod. In the case of semi-cylindrical plates, the rod is arranged to rotate and carries slip-rings, the cross-connections being clamped between insulating blocks and making connection to the corresponding slip-rings by means of brushes.
Patent GB-272777-A (GB)
Title: Improvements in and connected with the supply of fluid to fluid expansion engines
IPC: F02C3/32
Filed: 1926-12-08
Abstract: 272,777. Robinson, F. Dec. 8, 1926. Compressed-air engines. - The steam or other fluid-pressure supply of reciprocating engines or turbines is mixed by means of injectors with air at substantially the same temperature. In the construction shown in Fig. 1 applied to a locomotive, the air is supplied by means of a cone to a pipe 4 passing in a sinuous manner lengthwise through the boiler to a chamber 6 through which it is drawn past a spring-pressed non-return valve 8 by an injector 2 worked by the boiler steam. The mixed steam and hot air passes by pipe 3 to the cylinders. The cone 10 may be pivoted to provide for reverse running, or a second cone 11, controlled by dampers 12, 13 may be provided. In a modification, the tube is in the form of a helix and may be arranged in the fashion of a superheater. A duplex arrangement of injectors is provided. The coil 4 may contain a superheating-coil.
Patent GB-1189679-A (GB)
Title: Improvements in and relating to a Method of Bonding Together Two Lavers of Permeable Sheet Material.
IPC: B32B27/00
Filed: 1967-07-06
Abstract: 1,189,679. Permeable laminates. CESKOSLOVENSKE ZAVODY GUMARENSKE A PLASTIKARSKE OBOROVE REDITELSTVI. 6 July, 1967 [18 July, 1966], No. 31229/67. Heading B5N. A method of bonding a first sheet of permeable material to a second sheet of permeable material includes applying to the first sheet a substance which is a non-solvent for a polymeric adhesive, applying to a treated surface of the first sheet a solution of the polymeric adhesive, applying the second sheet to the surface, and heating the first sheet so as to evaporate the non-solvent through the polymer adhesive and co-agulate the polymer thereof into a microporous structure. The polymeric component of the adhesive may be polyvinyl butyral or acetate, a polymer or copolymer of butadiene, acrylonitrile or acrylic acid, a carboxylated polymer, a polyurethane, or a polyamide, and may be a blend of polyurethane and p.v.c. or a butadiene/styrene copolymer. The solvents may be alcohols, ketones, esters, aromatic hydrocarbons, dimethyl formamide, tetrahydrofuran, dioxan, alkyl sulphoxides and their compounds, and the non-solvent may be water or alcohol. The adhesive solution may contain a proportion of the non-solvent as well as dyes, fillers, and cross-linking agents. The method may be used for bonding microporous materials to woven or non-woven fabrics or expanded materials to textiles. The non- solvent may be applied by spraying, dipping, brushing or spreading, and the adhesive solution by doctor knife, brushing, extruding, spreading or roll-coating. In the examples, a sheet of textile coated with microporous polyurethane is bonded to a non-woven fibrous web reinforced with the same polymer by applying water to the microporous coating of the textile sheet, applying binder by doctor blade to the textile surface, applying the second layer to the binder, and heating from the side of the microporous coating. The binder may be a solution of polyurethane or a blend of polyurethane and p.v.c. in dimethyl formamide, or a 30% solution of N methoxy methyl polycaprolactam in a mixture of ethanol and water, or a solution of polyurethane in acetone. In the latter case benzene is used as the non- solvent. The laminates may be used in clothing, e.g. shoe uppers, or upholstery
Patent GB-1139687-A (GB)
Title: Emulsifiers for baked goods
IPC: A21D2/16
Filed: 1966-07-12
Abstract: 1,139,687. Emulsifiers for yeast-raised baked goods. STAR-KIST FOODS Inc. 12 July, 1966 [5 April, 1966], No. 31250/66. Heading A2B. An emulsifier for yeast-raised baked goods comprises distilled monoglycerides derived from both saturated fatty acids having an iodine value of 0-10 and unsaturated fatty acids having an iodine value of 40 or above in amounts, and a diacetyl tartaric acid ester of a monoglyceride, and/or a diglyceride, derived from a vegetable oil of commerce, the former constituting about 60%, and the latter about 40%, of the mixture. The emulsifier may be mixed with fat in a ratio of 85 : 15. The distilled monoglyceride may comprise 15-30% of a monoglyceride derived from a saturated fatty acid having an iodine value of 0-60, and 30-45% of a monoglyceride derived from an unsaturated fatty acid having an iodine value of 60-100. The first named monoglyceride may be derived from beef tallow, and the second named monoglyceride and ester may be derived from soybean oil, olive oil, peanut oil, cottonseed oil, or corn oil.
Patent GB-266839-A (GB)
Title: Improvements in protectors for the heels of boots and shoes
IPC: A43C13/02
Filed: 1925-12-11
Abstract: 266,839. Prestwich, F. Dec. 11, 1925. Protectors, securing. - A curved resilient heel-shaped protector a has an open cavity in its lower side filled by a, flat metal plate b, secured by a screw d, which flattens out the protector. A plug of leather c is inserted above the plate b and is secured by nails e which pass through holes in the plate.
Patent GB-385076-A (GB)
Title: Improvements in or relating to duplicating arrangements for typewriters
IPC: B41J15/12
Filed: 1931-11-12
Abstract: 385,076. Typewriters. BROWNING, W. H., 65, Chancery Lane, London. Nov. 12, 1931, Nos. 31372/31 and 1778/32. [Class 100 (iv).] Web feeding and guiding arrangements.-A web-pack carriage runs on a base which is supported without the aid of the typewriter, means being provided for relatively locating the base and the typewriter without fixing them together. In the apparatus shown in the Figure, a carriage 21 for a web pack 46 has wheels 25 running on rails 3, 5 on a base 1 which rests on the table' and is located by means of a bar 13 having bends for engaging the feet of the typewriter, and hooks 15 for engaging holes in a plate 9 on the base. Bars of different sizes are provided for different classes of typewriters. Two separate hook members may be employed instead of the bar 13. Jumping of the carriage is prevented by co-operation of a pin 79 thereon with a flanged plate 73 on the base, the plate being formed with stops 81 for limiting movement of the carriage, and a gap for permitting detachment thereof. The carriage is provided with standards 31 supporting a vertically adjustable cross-bar 33 having a pin 47 for engaging a forked plate 59 which is pivoted on a rod 55 on the platen carriage 53. The web pack is placed between pins 27 on the carriage and is guided by a roller 43 mounted in brackets 39 on the cross-bar 33.