baber/WOPTO huggingface dataset:
Patent GB-1241375-A (GB)
Title: Hydraulic actuator systems
Inventor: BRENT ROBERT GEORGE
IPC: B64C13/00
Filed: 1969-04-23
Abstract: 1,241,375. Aircraft hydraulic control systems. BELL AEROSPACE CORP. 23 April, 1969, No. 20810/69. Heading B7G. An hydraulic actuator system comprises a servo valve 12 for regulating fluid flow to the actuator 20a, 20b, and a by-pass circuit 14, 16, 18 for permitting fluid flow between the actuator chambers 20a, 20b if the servo valve 12 jams, so that actuator rod 32 may be moved by direct mechanical coupling via link 30, the by-pass circuit comprising first and second normally closed check valves 16 and 18 connected in series across the actuator 20, and a by-pass valve 14 which in a neutral state allows normal fluid flow between the servo valve 12 and the actuator, and which in first and second by-pass states allows fluid by-pass around the first and second check valves 16, 18 respectively. Link 30 is connected to a pilot's control stick, and via a lost-motion linkage to actuator rod 32 (connections not shown); rod 32 moves aircraft control surfaces, and also moves the housings 12h and 14h of spool valves 12 and 14 in conventional follow-up fashion. If servo valve 12 jams, say in the neutral Fig. 1 position, the pilot may move rod 32 mechanically via the lost-motion linkage, provided he moves his control stick and hence link 30 with enough force to overcome spring 28 at the jammed input to valve 12; if he applies a mechanical force to move link 30 and rod 32 to the right, fluid will flow from actuator chamber 20b to chamber 20a via check valve 16, port 14e, chamber 42b and the now opened port 14f. Similarly the rod may be moved mechanically to the left, flow being via check valve 18. The arrangement may also be seen to allow rod 32 to be operated mechanically wherever servo valve 12 jams. In normal use, valve 14 is always as shown in Fig. 1, since relative motion of its housing 14h and its spool 38 only occurs when valve 12 jams; hence it is unlikely that the by-pass valve 14 itself will jam in any position except neutral, and it is stated that this valve does not therefore decrease the reliability of the system. In Fig. 3, two extra check valves 260, 261, and fluid reservoir 262 and a pressure-responsive valve 263 have been added, so that if hydraulic supply pressure is lost, the system is isolated by valve 263 from the supply and reservoir 262 makes good any leaks. This prevents air bubbles entering the system, and also prevents feedback from the aircraft control surfaces to the pilot's stick when supply pressure drops. Figs. 2 and 4 show variations on the porting and lands in by-pass valve 14, and a rearrangement of check valves 16, 18.
Patent GB-1493583-A (GB)
Title: Compositions and solutions thereof for removal of scale on metal surfaces
IPC: C23G1/14
Filed: 1974-10-31
Abstract: 1493583 Alkaline pickling composition KOLENE CORP 31 Oct 1974 [1 Nov 1973] 20811/77 Divided out of 1493582 Heading C7E A composition for removing processed scale from ferrous metal surfaces which have been treated in a fused oxidizing salt bath Parent Specification comprises in wt. per cent: 20-95 alkali hydroxide, 12-28 alkali metal gluconate, 1-6 triethanolamine the gluconate and hydroxide totalling 91À9-99. Preferably 0À1-0À4% complexing agent for inorganic salts e.g. EDTA, up to 1À7% of a brightening catalyst such as NaCl or NaF may also be included. Traces of melting agents, alkali stable organic dye, carbonates, borates and phosphates may also be included. 2-12 lbs of the composition per gallon of water is used for pickling, the solution being used at 200-240F.
Patent GB-509871-A (GB)
Title: A process for the manufacture of products with foaming, emulsifying and wetting properties
IPC: D06M13/252
Filed: 1938-07-13
Abstract: 509,871. Making emulsions. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. July 13, 1938, Nos. 20835 and 20836. Convention dates, July 21, 1937, and Aug. 27, 1937. Samples furnished. [Class 1(i)] [Also in Group IV] Sulphonium salts which are stated to be emulsifying agents are prepared by reacting together sulphuric acid or an aliphatic, cyclic or aliphatic-cyclic sulphonic acid, a saturated monohydric, primary alcohol and an aliphaticaromatic thioether. In examples the following products are prepared : dimethylcetyl sulphoniumtoluenesulphonate, diethyldodecylsulphonium-#-naphthalenesulphonate, methyldiethylsulphonium sulphonate of a mineral oil sulphonic acid, #-chlorethylmethylcetylsulphonium-p-toluenesulphonate, dimethylcetylsulphoniummethylsulphate, diethyldodecylsulphoniumdodecylsulphate and #-chlorethylmethyldodecylsulphide. Samples have been furnished under Sect. 2(5) of the following products : (1) dimethyl-sec:- hexadecylsulphoniummethylsulphate ; (2) diethylcetylsulphoniumcetylsulphate; (3) methylethyltolylsulphoniummethylsulphate ; (4) methylethyldodecylsulphonium-p-chlorbenzenesulphonate ; (5) methylethyldodecylsulphoniumethanesulphonate. The following components are also mentioned: benzene-mdisulphonic acid, o-phenolsulphonic acid, cetylbenzenesulphonic acid, o-sulphobenzoic acid, sulphanilic acid, dodecanesulphonic acid and isobutanol.
Patent GB-829740-A (GB)
Title: Aircraft pitch-attitude control apparatus
IPC: G05D1/06
Filed: 1957-02-15
Abstract: 829,740. Automatic control systems for aircraft. SPERRY RAND CORPORATION. Feb. 15, 1957 [March 15, 1956], No. 20847/59. Divided out of 829,739. Drawings to Specification. Class 38 (4). The subject-matter of this Specification is identical with that in Specification 829,739, but the claims are directed to an aircraft automatic pilot in which a signal dependent on deviation of altitude, speed, or Mach number from a desired value is applied, together with a signal dependent on acceleration along the yaw axis, to an integrator, the output of which is combined with the signal dependent on altitude, speed, or Mach number deviation, and a signal dependent on deviation of pitch from a reference value, to control an elevator servomotor. Specification 612,804 also is referred to.
Patent GB-510759-A (GB)
Title: Process for the manufacture of alloys of silicon
IPC: C22C28/00
Filed: 1938-07-14
Abstract: 510,759. Alloys. SOC. D'ELECTRO-CHIMIE D'ELECTRO-METALLURGIE, ET DES ACIERIES ELECTRIQUES D'UGINE, and ANDRIEUX, J. L. July 14, 1938, Nos. 20934 and 20935. Convention dates, July 28, 1937 and June 8, 1938. [Class 82 (i)] In a process of making silicon-alloys especially alloys of silicon with calcium, strontium, barium, aluminium, magnesium, beryllium, zirconium, cerium &c., titanium, manganese, chromium, tungsten, molybdenum, vandium and boron by reducing oxidic compounds of the elements to be alloyed, a silicoaluminium alloy is employed as reducing-agent with external and regulated application of heat, the aluminium being present in such quantity that at least a part of the silicon appears in the product. The reduction consequently is effected by part or all of the aluminium and no silicon, or by all of the aluminium and some silicon. The oxidic compound which may be an oxide such as an ore or a salt containing oxygen and the alloy may be placed in solid form in a crucible and heated to start the reaction, or the oxidic compound may be introduced into a bath of molten silico-aluminium in fractions. When the oxidic compound employed is an acid metallic oxide a quantity of a basic oxide such as lime or magnesia in the free state or combined with the oxide should also be present. The reaction takes place at 650-1800‹C. the proportions may be adjusted so that a slag of eutectic proportions is formed and calcium fluoride may be used as a flux. Alloys comprising silicon with 32 per cent. of calcium and 16 per cent. of aluminium, or 29 per cent. of calcium and 22 per cent. of aluminium, or 21 per cent. of calcium and 33 per cent. of aluminium, or containing 50 per cent. of titanium, 32 per cent. of silicon, 12 per cent. of iron, 3 per cent. of aluminium, 2 per cent. of calcium, and 0.3 per cent. of carbon, or containing 43 per cent. of zirconium, 32 per cent. of silicon, 14 per cent. of iron, 4 per cent. of aluminium, 3.5 per cent. of titanium, 2.5 per cent. of calcium, and 0.3 per cent. of carbon, or 40-50 per cent. of titanium or zirconium, are referred to. Specifications 305,202, [Class 82 (i)], and 458,314 are referred to.
Patent GB-147365-A (GB)
Title: Improved method of and means for breaking pipe joints
IPC: F16L13/12
Filed: 1919-08-27
Abstract: 147,365. McCready, W. L. Aug. 27, 1919. Jacks and the like. -A device for extracting one pipe section from another comprises three hydraulically - operated jacks as B, which are placed on a socket as C' of the section from which a pipe C is to be extracted. A collar A<1> which is formed of a number of sections secured together by bolts, is fastened to the pipe C so that the collar rests on the heads of the jacks B, and water under pressure is pumped from a, tank H via a distributor E, and hose connexions D to the jacks B, and the pressure is maintained in the jacks until the joint is broken and the pipe C extracted. The jacks are connected together by chains K.
Patent GB-825673-A (GB)
Title: Improvements relating to winch fittings for fishing rods
Inventor: BOMFORD PHILIP HENRY
IPC: A01K87/06
Filed: 1957-07-04
Abstract: 825,673. Fishing-rod fittings. ALLCOCK & CO. Ltd., S. June 23, 1958 [July 4, 1957], No. 21147/57. Class 48. In a fitting for securing a winch 6 to a rod 8 of the type comprising a sleeve 5 freely fitted over the cork handle of the rod the sleeve 5 has a longitudinal slot 11 permitting the scoop 7 of the winch to rest on the exterior of the rod, one end of the sleeve has a pocket 13 for receiving one end of the scoop 7 and the other end of the sleeve has a nut 9 screwed thereon and adapted to engage over the other end of the scoop 7 and press the scoop on to the rod and at the same time hold the sleeve on the rod. The underside of the scoop is curved to seat against the rod and its top side is tapered from the middle towards the ends. The bore of the nut 9 has a tapered lead-in 17 to engage one end of the scoop 7.
Patent GB-748232-A (GB)
Title: Steroid
IPC: C07J75/00
Filed: 1953-07-31
Abstract: 4 - Halo - 11b ,17a  - dihydroxypregnane - 3,20 - diones are obtained by reacting in an organic solvent (e.g. dimethyl formamide, dimethylacetamide or other dialkylacylamides, acetic acid, methylene dichloride, chloroform and carbon tetrachloride) 11b , 17a -dihydroxypregnane-3,20-dione with between 1.0 and about 1.3 mols. of chlorine or bromine per mol. of steroid, at a reaction temperature between about zero and about 100 DEG  C.  An acid catalyst, e.g. hydrobromic acid in acetic acid, para-toluenesulphonic acid or naphthalene sulphonic acid may be added to the reaction mixture. Examples disclose the production of 4-bromo and 4-chloro11b ,17a -dihydroxypregnane-3,20-dione. Specification 748,237 is referred to.
Patent GB-499886-A (GB)
Title: Process for the production of radio-active fabrics
IPC: A61K51/12
Filed: 1937-08-03
Abstract: Radio-active fabrics are produced by precipitating the radium barium salt of a fatty acid having at least 16 carbon atoms, particularly the oleate, on to the fabric simultaneously with a like fatty acid metal compound, particularly aluminium.  The radium compound is thereby securely fixed on the fabric in water-insoluble form, and the fabric is water-proofed.  The fabric may be made from cotton, wool, silk, artificial silk, flax, hemp, jute or ramie with or without other substances such as rubber, into underwear, suspenders, bust bodices, bandages, face masks, belly-bands, stockings, linen and compresses.  In an example, a fabric is steeped in a solution of aluminium acetate containing some radium barium bromide, dried and boiled in a solution of sodium oleate, and finally dried.
Patent GB-1117251-A (GB)
Title: Improvements in carrier bags
Inventor: GATWARD HARRY FREDERICK
IPC: B65D33/12
Filed: 1965-05-20
Abstract: 1,117,251. Carrier bags. COLOROLL Ltd. 15 April, 1966 [20 May, 1965; 10 June, 1965], Nos. 21420/65 and 24651/65. Heading A4G. Contact adhesive 4, 5 (Fig. 4) on the flaps 2, 2a of a carrier bag seals the flaps when these are closed with a handle 13 on one passing through a slot in the other. The flaps are reinforced, for example by cardboard strips 7. The adhesive is of the sort which does not stick to an uncoated surface.
Patent GB-871361-A (GB)
Title: Manufacturing sheets and tubes from pulp
IPC: B28B1/52
Filed: 1959-06-23
Abstract: 871,361. Asbestos cement sheet - making machines &c. JOHNS-MANVILLE CORPORATION. June 23, 1959 [June 27, 1958], No. 21458/59. Class 96. [Also in Group XXVIII] In a machine for the production of asbestoscement sheets &c., the slurry is supplied through a funnel 8 to a vat 1 wherein it is agitated at 4 and formed into a web against an upwardly-travelling felt 2 by its hydrostatic pressure and by suction exerted from a box 22 through the felt 2 which carries it over a tank 47 &c. for draining excess water, and to a mandrel 34 against which it is pressed by rubber-covered rollers 35, 36, &c. over an arc which may be varied by a roll 38, screw 49, and hand-wheel 50 ; liquid expressed at the mandrel 34 may be collected by a trough 90. The felt 2 is tensioned at 91 &c. and cleaned by sprays 92, 93 and rotating blades 44<SP>1</SP>. The mandrel 34 may be adjustably loaded at 80, 86, &c., using weights 88 &c.
Patent GB-1032510-A (GB)
Title: Improvements in or relating to epoxy resins
IPC: C08G59/50
Filed: 1964-05-25
Abstract: A process for the preparation of epoxy resin compositions from at least one epoxy resin and a guanamine as a curing agent therefore, the guanamine being used in an amount sufficient to fully cure the epoxy resin to an infusible and insoluble polymer, comprises (A) reacting a substantial proportion but less than all of the epoxy resin with the guanamine, (B) terminating the reaction when 5 to 90% complete (as based on the disappearance of oxirane oxygen) but before a C stage resin is obtained and (C) adding the remainder of the epoxy resin to the partial reaction product.  The guanamines used have the formula AxB where A is the group <FORM:1032510/C3/1> x is 1 or 2 and B is R, R1NHCH2CH2-, R2N(CH2CH2-)2, or R3 where R is a phenyl or cyclohexyl radical or an aliphatic hydrocarbon group containing from 4 to about 21 carbon atoms, R1 and R2 are each aliphatic hydrocarbon groups containing from 4 to about 21 carbon atoms and R3 is a divalent hydrocarbon group containing 4 to about 42 carbon atoms. Many epoxy resins and guanamines are specified. The compositions may be dissolved in a polar organic solvent and the solution used to impregnate fibrous materials or mica.  The impregnated materials may be used in the manufacture of laminates which may be used in the structures of ducts, radomes, tail sections and elevators for aircraft.  They may also be used in the manufacture of electrical switch gears, instrumental panels, printed circuit bases, electrical-coil insulation and low-pressure bearing surfaces. Glass-fibre rovings impregnated with the compositions of the invention are useful in the manufacture of motor cases for missiles, radomes, satellite launches, exit cones, buoys, tanks, submarines, pressure vessels, reactors, gas cylinders, ducts, pipes, light poles and springs.ALSO:Glass fibre rovings, yarns, mats and fabrics are impregnated with organic solvent solutions of curable compositions obtained from an epoxy resin and sufficient of a guanamine to fully cure the epoxy resin by (A) reacting a substantial proportion but not all of the resin with the guaramine.  (B) terminating the reaction before completion and (C) adding the remainder of the epoxy resin. The guanamines used have the formula AxB where A is the group: <FORM:1032510/B1-B2/1> x is 1 or 2, and B is an organic radical.  The impregnated rovings are useful in the manufacture of glass reinforced objects by filament winding.
Patent GB-1263024-A (GB)
Title: A levelling grader
IPC: E02F3/85
Filed: 1970-05-05
Abstract: 1,263,024. Steering articulated vehicles. EISENWERK GEB. FRISCH K.G. AUGSBURG. 5 May, 1970 [7 Aug., 1969], No. 21561/70. Heading B7H. [Also in Division E1] A grader comprises a frame 5 articulated to a rear wheeled chassis 2 and to front wheels 9, hydraulic rams 7, 8 and 10, 11 mounted for moving the frame relative to the chassis 2 and the wheels 9, respectively, and a valve 13 in the hydraulic circuit for the rams which in one position hydraulically interconnects the rams so that when either pair of the rams is operated the fluid displaced therefrom operates the other pair to steer the grader in the same direction, and which in a second position permits operation of the rams 10, 11 only.
Patent GB-925421-A (GB)
Title: A widening or enlarging device for a boring machine
IPC: E21B10/32
Filed: 1960-06-20
Abstract: 925,421. Boring earth; piles. SOC. FRANCAISE DE CONSTRUCTION DE BENNES AUTOMATIQUES BENOTO. June 20, 1960 [June 19, 1959], No. 21581/60. Classes 68 (2) and 85. An under-reamer comprises a body 1 adapted to be suspended within a casing T, bladed tools 14 mounted on the body for outward pivotal movement, and blocks 5 on the body and which may be projected by jacks 9. The casing is alternately rotated in each direction, or is continuously rotated, so that when the tools are pivoted outwardly by a jack 10, and the blocks engage the casing, a hole is formed into which concrete may be poured to form a pile L.
Patent GB-1534049-A (GB)
Title: Invalid wheel-chair
IPC: A61G5/12
Filed: 1976-05-26
Abstract: 1534049 Adjustable invalid chair leg rests W MEYER [trading as WILHELM MEYER] 26 May 1976 [2 April 1976] 21840/76 Heading A4J An invalid chair comprises a pair of adjustable leg supports 16 each comprising a carrier spar 17 adjustable about a pivoted connection 22 with the chair frame when an operating lever 23 pivoted to the carrier spar is moved into abutment with the upper end 24 of the spar. The carrier spar may be locked in adjusted position by a gas spring pivotally connected between the spar and the chair frame. Alternatively a slide rod 31 pivotally connected to the spar may be clamped with respect to a guide bush on the chair frame.
Patent GB-1355726-A (GB)
Title: 16,17 -seco-delta4 and delta5-10 steroids
IPC: C07C62/38
Filed: 1972-05-11
Abstract: 1355726 16,17-Seco-#<SP>4</SP>- and #<SP>5(10)</SP>-steroids SYNTEX CORP 11 May 1972 [12 May 1971] 22157/72 Headings C2C and C2U [Also in Division C7] Novel compounds of the formulae (wherein R<SP>1</SP> is C 1-4  alkyl or is -CH 2 OH which may be C-substituted by one or two C 1-4  alkyl groups or by one C 1-4  alkyl group and one phenyl group and in which the OH group may be esterified or etherified; R<SP>2</SP> is C 1-4  alkyl; and R<SP>3</SP> and R<SP>4</SP> are both H or both CH 3 , or R<SP>3</SP> is H and R<SP>4</SP> is CH 3 ) are prepared as illustrated in the following reaction scheme (wherein R<SP>5</SP> and R<SP>7</SP> are each C 1-4  alkyl and R<SP>6</SP> is C 1-4  alkyl or phenyl). The compounds are named as 16,17-seco-steroids, and the #<SP>1,3,5(10)</SP>-compounds are converted to the #<SP>4</SP>- and #<SP>5(10)</SP>-compounds by Birch reduction followed by hydrolysis of the #<SP>2,5(10)</SP>-3-alkyl ethers first formed (one illustrates methyl ethers, but other alkyl ethers may also be used), mild hydrolysis producing the #<SP>5(10)</SP>-compounds and stronger hydrolysis the #<SP>4</SP>-compounds. (II)#(V) is effected with an alkyl Grignard reagent, some of (VI) wherein R<SP>6</SP> is alkyl also being formed when reaction times are prolonged. (V)#(VI) (R<SP>6</SP> = phenyl) is effected with a phenyl Grignard reagent or phenyl lithium. (V and (VIII) may be reduced to (X) by chemical or electrochemical methods. Resulting ols may be esterified or etherified, and acylates may be hydrolysed. The #<SP>5(10)</SP>-compounds (IX) are esterified by reduction to the corresponding 3#-ols, diesterification, selective hydrolysis in the 3-position, and oxidation to give the #<SP>5(10)</SP>- 3-ones again. On reaction with a methyl halide in the presence of potassium t.-butoxide using toluene-hexamethyl phosphoramide solvent mixture, the #<SP>4</SP>-3-ones are converted into a mixture of 2α-monomethyl and 2,2-dimethyl derivatives which may be separated by conventional methods. These products may be converted into #<SP>5(10)</SP>-3-ketals and then hydrolysed to the #<SP>5(10)</SP>-3-ones. 16,17-Secoestra-1,3,5(10)-trien-3-ol-17-oic acid is prepared by alkaline fusion of estradiol. Corresponding compounds with other alkyl values for R<SP>2</SP> are prepared similarly. 14#-H starting materials are prepared by the following process The novel compounds possess anti-androgenic activity and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-225614-A (GB)
Title: Improvements relating to sand moulding machines for foundry purposes
IPC: B22C11/00
Filed: 1923-09-04
Abstract: 225,614. Howie, H. Sept. 4, 1923. Moulding-machines. - In moulding-machines having a turn over table carrying the pattern and flask and a counterbalanced draw-plate carrier actuated by a hand lever, the draw-plate carrier is provided with two guiding-rods located at or near diagonal corners and is actuated by a cam or eccentric midway between the guide-rods. A pattern-plate G is secured to a pivoted frame H retained in position by a bolt controlled by a lever h<1>. The flask F is then positioned and filled with sand which is rammed, the whole being then clamped to the pattern plate. The locking- bolt is then withdrawn and the frame H inverted after which the plate carrying a draw-board D provided with rails d is lifted into contact with the flask by a hand-operated cam or eccentric B guide-rods a being provided on the plate A. The pattern plate is then rapped, the flask clamps removed and the plate A lowered, after which the draw-board and superposed flask may be moved transversely on to a bracket.
Patent GB-494894-A (GB)
Title: Improvements in helical chutes for bulk goods
IPC: B65G11/06
Filed: 1938-07-26
Abstract: 494,894. Shoots. GEWERKSCHAFT EISENHUTTE WESTFALIA. July 26, 1938, No. 22238. Convention date, Sept. 30, 1937. [Class 78 (i)] Helical s ioots in which the helix is attached to the inner wall of a cylinder without the provision of a central pillar, are built up of standardized parts each comprising a section of cylinder and helix, the section of the latter being readily detachable and removable from the corresponding section of the cylinder while the apparatus as a whole remains in situ. As shown, the cylinders are formed in superposed abutting sections, and each section carries one or more standard parts of the helix which can be detached and removed through a man-hole in the walls. Figs. 1 and 2 show a section of the cylinder carrying two parts 15<1>, 15<11> of the helix, secured by bolts 23, Fig. 2, to inwardly-projecting lugs 21 integral with the walls of the cylinder. The shoot floor is deformed to engage countersunk recesses surrounding the bolt holes in these lugs. By removing the bolts, any section of the helix can be removed through the man-hole 18 in its corresponding cylinder section. Some or all of the cylindrical sections may be split longitudinally, for example, one or two at the top in order to replace one half section by a hopper. The upper or other cylindrical sections may be fitted with perforated projecting lugs 27, Fig. 7, for securing the apparatus as a whole in a mine shaft or other location. Hanger members 28, furnished with screwed ends bolted to the timbering, engage the lugs in such manner as to permit vertical adjustment of the apparatus when necessary.