baber/WOPTO huggingface dataset:
Patent GB-674887-A (GB)
Title: Automatic pilot
IPC: G05D1/08
Filed: 1945-06-09
Abstract: 674,887. Automatic control systems for aircraft. BENDIX AVIATION CORPORATION. June 9, 1945 [May 29, 1944], No. 10457/49. Divided out of 674,821. Drawings to Specification. Class 38 (iv) The subject-matter described in this Specification is identical with that described in Specification 674,821, but the claims are directed to means adapted to permit a smooth change from manual to automatic control. Specifications 565,277, [Group XXXVIII], 592,394, [Group XXXVI], and 662,831 also are referred to.
Patent GB-105353-A (GB)
IPC: D06P1/34
Abstract: 105,353. Miller, H. C., and Irlam, H. A. April 10, 1916. Mordant dyes, dyeing with.-Wool, silk, leather, &c., are dyed by means of the sulphonated dyes described in Specification 104,353, [Class 2 (iii), Dyes &c.], an oxidizing-agent, such as a bichromate, a chromate, chromic acid, a permanganate, &c., being added to the dye-bath or applied to the material before or after dyeing.
Patent GB-430376-A (GB)
Title: Improvements in or relating to rotary machines for expressing liquid from moist materials
IPC: B30B9/20
Filed: 1934-04-07
Abstract: 430,376. Presses for separating liquids from solids. GREENWOOD & BATLEY, Ltd., and MACLAGAN, J. C. M., Armley Road, Leeds. April 7, 1934, No. 10538. [Class 46] In presses of the type in which the material is passed between two rotating members arranged face to face at a small angle, the rotating members are provided with passages in which the material which has undergone compression between the faces is subjected to further compression. As shown the pressure faces are provided by conical perforated plates 10 attached to members 1 which are mounted on shafts 17 and rotated by pinions 8 on a shaft 9 in bearings 3, 4 on housings 2. The housings are connected by tie-rods 6 and provided with ball or roller bearings 5 to deal with thrust loads tending to separate the members 1. Between the inner margins of the plates 10 and the shafts 17, perforated plates 15 are arranged radially to form contracting passages 14. The material supplied to an encircling hopper casting 13 is carried round between the plates 10, some liquid passing through the plates and being discharged through radial passages 11 in the members 1. The material thus initially compressed is directed inwardly by a ramp 12 formed by a wall of the casting 13 and forced through the passages 14, from the outer ends of which it is removed by adjustable knives 18. Liquid passing through the plates 15 is discharged through the passages 11. In order to regulate the degree of compression the outlet ends of the passages 14 may be restricted by annular projections 19 on the members 1 and shafts 17, or adjustable cones may be provided for this purpose.
Patent GB-1379475-A (GB)
Title: Device for displacing slidable members in motor vehicles
IPC: B60J7/057
Filed: 1972-03-07
Abstract: 1379475 Sliding members in motor vehicles ROBERT BOSCH GmbH 7 March 1972 [8 March 1971] 10557/72 Addition to 1320843 Heading E2M The device for displacing a sliding member, such as a window or roof, in a motor vehicle claimed in Specification 1320843 is modified in that the manually operable auxiliary device comprises a hand crank and a hand crank shaft combined into a unitary structure having thereon a bevel gear engageable for manual operation with a bevel gear on the motor drive shaft. In the embodiment shown an electric motor 15 is mounted inside a car door and operates a sliding window via transmission 16; the motor drive shaft 24 having a bevel gear 25 which is engaged by the bevel gear 26 on hand crank 28. When the window is to be manually operated the end 27 of the crank is inserted through a hole in the inside door lining 13 with tongues 20, 21 extending from the motor housing forming journals for parts 30, 27a. For silent operation at least one of the bevel gears is formed from plastics material and hand crank and bevel gear 26 can be integrally formed from plastics.
Patent GB-315287-A (GB)
Title: An improved process for the prevention and removal of boiler scale
IPC: C02F5/10
Filed: 1928-04-10
Abstract: 315,287. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 10, 1928. Incrustation, preventing and removing.-Incrustation on heating and cooling surfaces is prevented by treating the water with humates, particularly those of alkali metals, or with substances which are rich in humic acid and have been treated with alkalies or salts with an alkaline reaction. The humates may be prepared from humus coal, brown coal, peat, bog earth, forest humus, &c., or artificial humic substances prepared from lignine, cellulose, phenols, proteids. sugars, or furane derivatives, by treatment with alkalies or substances with an alkaline reaction.
Patent GB-1144931-A (GB)
Title: Improvements relating to electric motor speed control
Inventor: MERRETT John
IPC: H02P7/292
Filed: 1966-03-10
Abstract: 1,144,931. Automatic control of speed. MULLARD Ltd. March 10, 1966, No. 10569/66. Heading G3R. In a system in which the speed of a D.C. motor 1 is kept constant by regulating its power supply in response to the back e.m.f. on line 7, compensation for variations in the field 2 current is provided by a control element 6 which alters the response of the system when the field current, monitored at 3, changes above a predetermined value. The speed control circuit is as described in Specification 1, 144, 762 and comprises a thyristor whose firing angle is determined by the conduction of a transistor 12. This is modified by the conduction of transistor 6, which depends upon the amount that the voltage tapped at 3 exceeds that of a Zener diode 5. Resistors 15, 17 and capacitors 16, 18 are for smoothing purposes. In an alternative embodiment the connection between transistors 6 and 12 includes a second Zener diode which conducts if the field current falls to a large extent, thereby causing the thyristor to be triggered late and so avoiding the large motor current which would otherwise occur.
Patent GB-886477-A (GB)
Title: Selective hydrogenation of fatty oils
IPC: C11C3/12
Filed: 1959-03-26
Abstract: Unsaturated fatty oils such as castor, cotton seed and soybean oils are hydrogenated in the presence of a supported catalyst comprising Pd metal and a compound of a metal selected from Hg, Ag, Bi and Cu. Carbon is the preferred support, but e.g., alumina, silica gel, kieselguhr or asbestos may also be used.  In addition to single promoters, a combination such as Ag+Bi may be used.
Patent GB-678973-A (GB)
Title: Improvements in or relating to electric cables
Inventor: DIXON NORMAN
IPC: H01B7/04
Filed: 1950-05-02
Abstract: 678,973. Trailing cables. GLOVER & CO., Ltd., W. T. May 1, 1951, [May 2, 1950], No. 10838/50. Class 36. An electric cable having a composite sheath composed of an inner part 4 and an outer part 5, both consisting of natural or synthetic rubber loaded with carbon black, is provided with a thin layer 6 of coloured rubber bonded to both parts 4, 5 of the sheath to indicate the boundary between the parts.
Patent GB-1385030-A (GB)
Title: Merocyaninic dyes and their use in silver halides photographic emulsions containing the same
IPC: G03C1/22
Filed: 1972-03-08
Abstract: 1385030 Furan and tetrahydrofuran derivatives MINNESOTA'MINING & MFG CO 8 March 1972 [9 March 1971] 10882/72 Heading C2C [Also in Division C4] CS 2  is reacted with THFF- and FF-amines (in which THFF is α-tetrahydrofurfuryl and FF is α-furfuryl) to form (1), (2) THFF- and FF- isothiocyanates respectively.  (1) is reacted (a) with sarcosine and acetic anhydride to form (3) 1-methyl-3-THFF-2-thiohydantoin- (b) with iminoacetic acid diethyl ester to form 1-carboxymethyl-3-THFF-2-thiohydantoin ethyl ester which is hydrolysed to (4) the free acid; (c) with thioglycolic acid to form (5) 3-THFF-rhodanine. (8) 3-FF-rhodanine is prepared similarly. FF amine is reacted with chloroacetamide to form (6) (FF-amino)acetamide.HCl which is reacted with propyl isothiocyanate or dimethylaminopropylisothiocyanate to form (9), (7) 1-FF-3-(propyl or dimethylaminopropyl)-2- thiohydantoin, respectively. (9) is reacted with diphenylformamide to form 5-anilinomethylene- 1-FF-3-propyl-2-thiohydantoin which is acylated to (17) 5-acetanilidomethylene-1-FF-3-propyl-2- thiohydantoin. FF-amine is reacted with ethylbromoaeetate to form (10) N-(FF) glycine ethyl ester which is reacted with carboethoxymethylisothiocyanate to form 1-FF-3-carboxymethyl-2-thiohydantoin ethyl ester which is hydrolysed to (11) the free acid. N-(THFF)-glycine ethyl ester is reacted with ethyl isocyanate to form (12) 1-THFF-3-ethyl-2- thiohydantoin. Acetamido-carbodithioloneglycolic acid is reacted with FF- or THFF-amine to form (13), (14) 3-(FF or THFF)-2-thio oxazolidone, respectively which are reacted with diphenylformamidine to form 5-anilino-methylene-3- (FF or THFF)-2-thiooxazolidone which is acetylated to (15), (16) 5-acetanilidomethylene-3-(FF or THFF)-2-thiooxazolidone.
Patent GB-975969-A (GB)
Title: Polymerisation of olefines and catalyst therefor
Inventor: STUART-WEBB JOHN
IPC: C08F10/00
Filed: 1962-03-21
Abstract: Ethylene is polymerized using as catalyst a mixture of (a) the reaction product of vanadium tetrachloride with aluminium, (b) a compound containing at least one hydrogen-silicon bond and (c) a higher halide of a transition metal from Group IV to VI. Component (a) is preferably formed by reducing vanadium tetrachloride with aluminium powder in a hydrocarbon solvent and the product is preferably ball-milled in the dry state.  Suitable silicon compounds include silicon hydrides, organosilanes and siloxanes, the preferred compounds being hydropolysiloxanes such as methyl hydrogen silicone oil of formula <FORM:0975969/C3/1> Preferred (c) components are titanium tetrachloride, vanadium tetrachloride and mixtures of the two; the term "higher halide" meaning a halide of a transition metal in which the transition metal has the highest valency which is shown by that metal when in binary combination with that halogen.  The catalyst components are preferably mixed together in the polymerization medium which is either an inert diluent or the liquefied monomer which is to be polymerized. In the examples ethylene is polymerized with a catalyst comprising titanium tetrachloride, the ball-milled reaction product of vanadium tetrachloride and aluminium powder and either methyl hydrogen silicone oil or diphenyl silane, the polymerization medium being a high-boiling petrol fraction. Specifications 830,424, 877,050, 934,119 and 946,013 are referred to.
Patent GB-280794-A (GB)
Title: An improved expanding friction clutch for motor cars and the like
IPC: F16D13/16
Filed: 1927-04-23
Abstract: 280,794. McBride, W. H. April 23, 1927. Clutches, friction; operating ctutches.-Expanding-segment friction clutches for motor-vehicles &c. comprise a driven disc b, on which " Ferodo "-faced segments c are guided by feathers c<1> and collar bolts i engaging slots c<2>, these segments being expanded to engage the flywheel, or a rim a secured thereto, by two tension springs m connected to studs h on bell-crank levers f pivoted at g to the disc b. To ensure a balanced thrust, the levers f act on seatings c<3> on the segments by flexible blade springs e. The engaging-pressure is centritugally augmented during running. Declutching is effected by levers j, which engage brackets d on the segments and are connected by togglelinks k, preferably in pairs, to a spring-returned grooved collar l. The collar is engaged by pivoted pads on a forked arm (not shown), actuated from the clutch pedal by a pair of pinions.
Patent GB-921271-A (GB)
Title: Improvements in or relating to jigs for use in the manufacture of semiconductor devices
Inventor: WESTON ALAN DAVID
IPC: H01L21/00
Filed: 1960-03-28
Abstract: 921,271. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. March 28, 1961 [March 28, 1960], No. 10951/60. Class 37. A jig, Fig. 1, for use in the manufacture of semi-conductor devices consisting of a wafer of semi-conductor material having an electrode fused to each main face, comprises two graphite blocks 1, 2 which fit slidingly within an elongated recess 4 in a graphite holder 3, each block 1, 2 having formed within it a shoot 5, 8 sloping downwards and terminating in an opening 7, 10 in the flat surface of the block which faces the other block, and the spacing between said flat surfaces being adjustable by relative sliding movement of the blocks along the recess 4. As shown in Fig. 2, a rectangular wafer 11 of N-type Ge is sandwiched between blocks 1, 2, and pellets 12, 13 of pure In are put in shoots 5, 8 and gravitate into contact with the main faces of the wafer 11. The jig is then heated to c. 550‹ C. in H 2  to alloy the pellets to the wafer to form emitter and collector regions therein. When the jig is cool a tinned Ni base electrode 16, Fig. 3, having an aperture to accommodate the emitter electrode, is placed against wafer 11 between blocks 1, 2, and Ni lead wires 18, 19 are positioned as shown (and further supported if necessary) in contact with the emitter and collector electrodes, and the jig is heated to secure the base electrode to the wafer and the leads to their respective electrodes. Alternatively the block 1 may be modified to permit formation of the alloy junctions and attachment of the base electrode and lead wires to be carried out in a single heating step. In a multiple jig comprising more than two graphite blocks in a common holder, shoots may be formed terminating in each surface of a block facing another block, and additional support for the lead wires may be provided by the base electrodes of adjacent assemblies, which may be apertured for this purpose. Transistor assemblies so formed are cleaned and enclosed in cylindrical envelopes.
Patent GB-125449-A (GB)
Title: Improvements in or relating to Apparatus for Heating Boiler Feed Water.
Inventor: MORISON DONALD BARNS
IPC: F22D1/28
Filed: 1916-08-03
Abstract: 125,449. Morison, D. B. Aug. 3, 1916. Addition to 3499/12. Feed-water, heating. - In an exhaust-steam feed-heating apparatus comprising primary and secondary heaters arranged as described in the parent Specification, the primary heater is placed in free communication with the secondary heater, so that at low loads, when the quantity of heating steam is relatively small, no resistance is offered to its flow to the secondary heater, and the back pressure in the exhaust system is reduced. The pipe p conducting heating steam from the primary heater a, or direct from the exhaust-supply pipe e, into the secondary heater b terminates in a nozzle r formed of stepped cones surrounded by a conical tube h having water inlet openings m. The nozzle projects through a partition o forming a compartment into which the water is supplied by a pipe k. A shut-off valve l is fitted in the pipe p. Specification 15413/13 is referred to.
Patent GB-914346-A (GB)
Title: High speed loom
IPC: D03D35/00
Filed: 1959-04-01
Abstract: 914,346. Shuttleless looms. O'NEILL, H. T. April 1, 1959 [April 3, 1958], No. 11018/59. Class 142 (2). The weft inserting needle 22, Fig. 2, of a ribbon loom is attached to a crank-pin 19 and slides in a block 23 pivoted on a fixed axis, whereby the operative end of the needle follows the path indicated by arrows. The weft inserter has a bifurcated end, Fig. 8, the upper leg 38 having an eye and the lower leg 37 being forked; the weft F passes through the eye and across to the fork for presentation to the hook 31 of a reciprocating selvedge knitting needle 28 as the paths of the needles intersect. At the beginning of a weft-inserting stroke, the weft extending from a guide eye 53 through the eye of the needle 22 to the edge of the fabric is deflected into the fork 41 of the needle by a loop of wire 45 carried by the block 23.
Patent GB-739876-A (GB)
Title: Process for the preparation of urea
IPC: C07C273/04
Filed: 1954-04-14
Abstract: In the production of urea from ammonia and carbon dioxide at high temperatures and pressures oxygen is present in many times the amount necessary to oxidize the sulphur compounds present to SO2 (provided the sulphur content of the gases is less than 20 mg. per cubic metre of carbon dioxide), but insufficient to adversely effect the urea reaction; the parts of the apparatus exposed to severe corrosion are made of or coated with steel containing at least 16 per cent of chromium and 8 per cent of nickel.  The oxygen may be supplied as such or as a compound which generates it, e.g. hydrogen peroxide, barium peroxide or oxides of nitrogen.  If the sulphur content is below 2 mg. per cubic metre, 0.2 per cent by volume of oxygen is sufficient; for higher sulphur contents the amount of oxygen may be up to 3 per cent by volume. In the absence of sulphur, 0.1 per cent of oxygen is useful in minimizing corrosion.  A particularly suitable corrosion resistant material is an austenitic chromium-nickel steel containing 16-20 per cent of chromium, 10-14 per cent of nickel and 1.75-4 per cent of molybdenum or zirconium.  An example is given of the production of urea by the process of the invention, in which the carbon dioxide is subjected to preliminary purification to reduce the sulphur content to below 2 mg. per cubic metre.  Similar operation in the absence of oxygen leads to a coloured product containing iron.ALSO:In the synthesis of urea from ammonia and carbon dioxide at high temperatures and pressures in the presence of oxygen, the parts of the apparatus which are exposed to corrosion are made of or coated with steel containing at least 16 per cent of chromium and 8 per cent of nickel.  Particularly suitable is an austenitic chromium-nickel steel containing 16-20 per cent chromium, 10-14 per cent nickel and 1.75-4 per cent molybdenum or zirconium.  The steel used in the example has 16-18 per cent chromium, 10-14 per cent nickel, 1.75-2.75 per cent molybdenum and less than 0.1 per cent carbon.
Patent GB-527439-A (GB)
Title: Astringent preparation
Filed: 1939-04-12
Abstract: 527,439. Cosmetics. MONTENIER, J. B. April 12, 1939, No. 11050. Convention date, April 22, 1938. [Class 81 (i)] In cosmetic preparations comprising as astringents metallic salts of inorganic acids, e.g. aluminium chloride, which have an acid reaction or undergo hydrolysis, a soluble or dispersible compound containing the group-CO.N= is incorporated to overcome the effects of acidity. Suitable compounds are (1) fatty acid amides, particularly acetamide ; (2) alkyl and aryl esters of carbamic acid and substituted carbamic acids, e.g. urethane ; (3) urea and its substitution products. The invention is applicable to cosmetics in the form of lotions, creams, sticks, &c. Typical examples are (1) 20 parts of aluminium chloride, 15 parts of urea, 65 parts of water ; (2) 15 parts of aluminium chloride, 15 parts of acetamide, 10 parts of spermaceti, 50 parts of water, 10 parts of emulsifying agent. Specification 476,869 is referred to.
Patent GB-380020-A (GB)
Title: Manufacture of indigoid vat-dyestuffs
IPC: C09B7/00
Filed: 1931-08-10
Abstract: Unsymmetrical indigoid dyestuffs are obtained by condensing a 5-halogen-6-methyl-3-oxythionaphthene or a 2- derivative thereof with any indigoid component other than 5 - halogen - 6 - methyl - 3 - oxythionaphthene or a 2- derivative thereof.--The resulting dyestuffs may be halogenated.  In examples: (1) 5-chlor-6-methyl-3-oxythionaphthene is condensed in chlorbenzene with 5 : 7-dibromisatinchloride; (2) the resulting dyestuff is brominated in nitrobenzene; (3) 5-chlor-6-methyl-3-oxythionaphthene is condensed with 5-chlor-7-methyl- 3 - oxythionaphthene-p-dimethylaminoanil; (4) 5-brom-6-methyl-3-oxythionaphthene is condensed in alcohol with acenaphthenequinone; (5) 5-chlor-6 - methyl - 3 - oxythionaphthenequinone - p - dimethylaminoanil is condensed with 2 : 1 - naphthoxythiophene; (6) cotton is dyed reddish violet tints in a bath obtained by vatting the product of example (1). The dyeing of wool, silk, and artificial silk is referred to.  The use of the halides and the oximes of 5 - halogen - 6 - methyl - 3 -oxythionaphthenequinones and of 5-halogen-6-methyl-3-oxythionaphthene-2-carboxylic acid is mentioned, and also the properties of the dyestuffs prepared from 5-halogen-6-metihyl-3-oxythionaphthene and the following components; a  - isatinanilide, 5 - brom - a  - isatinchloride, 6 - chlor - 3 - oxythionaphthene - p - dimethylaminoanil, 4 - methyl - 6 - chlor - 3 - oxythionaphthene - p - dimethylaminoanil, 5 : 7 - dibromisatin, 1 : 2 - naphthoxythiophene - p - dimethylaminoanil and 2 : 3-naphthoxythiophene-p-dimethylaminoanil.  5-Halogen - 6 - methyl - 3 - oxythionaphthene may be prepared by diazotizing 5-methyl-4-halogen-2-aminobenzene-1-sulphonic acid, converting the sulphonic group into the sulphochloride by means of phosphorus pentachloride after forming the 5-methyl-4-halogen-2-cyano-1 benzenesulphonic acid by means of cuprouscyanide, and condensing with chloracetic acid the thiophenol obtained by reducing the sulphochloride group with zinc dust which simultaneously hydrolyses the cyano group.  The resulting 5-methyl-4-halogen-1-phenyl-thioglycollic-2-carboxylic acid is finally converted into the corresponding oxythionaphthene by means of caustic soda.  The latter on treatment with p-nitrosodimethylaniline yields the 2-anil, which on warming with mineral acid gives the corresponding thionaphthenequinone. 5-Chlor and 5-brom-6-methyl-3-oxythionaphthene are mentioned.
Patent GB-695743-A (GB)
Title: Improvements in or relating to rotary pumps and bushings therefor
IPC: F04C2/14
Filed: 1951-05-11
Abstract: 695,743. Rotary pumps. BORG-WARNER CORPORATION. May 11, 1951 [May 19, 1950], No. 11135/51. Class, 110(ii) A pump with pressure-loaded end bushes at one end, provided for sealing purposes, has two surfaces, one loaded with the inlet pressure and one with the discharge pressure. The bushing assembly is designed to fit an existing pump without modification of the pump being necessary. The figures show a gear pump with gears 9, 10 integrally formed with hollow shafts 11, 12 supported in normal bushes 13, 14 at one end. Axially-adjustable bush-assemblies 15, 16 each comprise a barrel 22 and a cover 23 having areas 26, 25. Inlet pressure is applied over an eccentric area at the base of 25, against a portion of the cover 23, using a radial groove 23a and an aperture 24. Discharge pressure acts against a surface 26, plus the force of initial-loading springs 37, using an axial passage 38 leading from the delivery port 19: A seal 35 separates the two pressure chambers. Lubrication of the shaft is provided by an axial groove 28 and spiral grooves 29. A groove 30, in the bush 22, is cut deeply to reduce the weight and expose a greater area of the bush to the fluid being pumped, for cooling purposes. A bevelled area 39 may be provided around part of the periphery of the forward face of the cover 23 adjacent the outlet 19, allowing limited communication between the inlet and discharge ports. Figs. 4 and 5 show a modified arrangement with the bush 52 and cover 41 stepped to form two recesses 44, 45, of unequal size, the recess 44 being offset to the left and 45 centred with respect to the bushing. Inlet pressure fluid passes into the recess 44 by way of a hole 60 in the cover 41. Discharge pressure acts against an area 46, a seal 55 being provided between the two chambers. By increasing or decreasing the size of recess 45, the extent of compensation for high inlet pressure may be controlled. The area 45 is in communication with the lubrication ducts 43, 49. The invention may be applied to vane pumps. Specification 695,752 is referred to.
Patent GB-373352-A (GB)
Title: Improvements in hose suspenders
IPC: A41F11/04
Filed: 1931-04-15
Abstract: 373,352. Sock &c. suspender grips. SMITH, W., 3, Hanway Place, Oxford Street, London, and DAVIES, G., 12, Royal Crescent, Brighton. April 15, 1931, No. 11149. [Class 44.] In a sock suspender of button-and-loop type the headed stud 7 is of rectangular section with an extension 9 by which it is secured to the usual tab 10, and is embraced on three sides by the correspondingly-shaped lower end of the loop 3, which is provided with lateral enlargements 5, 6 so shaped and disposed as to necessitate angular displacement of the stud when inserting or removing it from the loop.