baber/WOPTO huggingface dataset:
Patent GB-861474-A (GB)
Title: Photo-electric angular position indicator for balancing machines for rotating bodies
IPC: G01M1/22
Filed: 1957-08-10
Abstract: 861,474. Photoelectric rotational balance indicators. AVERY Ltd., W. & T. Aug. 10, 1957, No. 25308/57. Class 40(3) In a photo-electric angular position indicator employing a wattmeter or wattmeters, for measuring the unbalance of rotary bodies, a polarity reversing device controlled by photoelectric pulses produced by a narrow mark on the periphery of the rotary body is connected in circuit with a condenser to produce across the condenser a triangular waveform at half the rotational frequency of the rotary body, the triangular waveform being applied to a frequency doubling circuit and then to voltage dependent resistances to produce a sinusoidal waveform for the reference phase of the wattmeter or wattmeters. A relatively narrow mark 5, Fig. 1, on the periphery of a rotor 2 produces electric pulses in a photoelectric scanning device 4, the pulses being used to control a polarity reversing device 7 in the supply circuit of a condenser 8 so that the triangular waveform shown in Fig. 4 appears across the condenser. The alternating component of the triangular waveform of Fig. 4 is separated by a condenser inductance circuit 9 and is rectified in a dry rectifier 10. The output of the rectifier 10 is applied to a further condenser inductance circuit 11 which separates the alternating component to produce the triangular waveform of Fig. 7 which is of twice the frequency of the waveform shown in Fig. 4. The output of the circuit 11 is applied to an arrangement of voltage dependent resistances 12 which convert the signal to the sinusoidal form shown in Fig. 8, which is applied to the coil of the wattmeter measuring system for comparison with an unbalance component voltage in known manner.
Patent GB-1136284-A (GB)
Title: Adjustable inductor
IPC: H01F21/06
Filed: 1966-06-07
Abstract: 1,136,284. Inductors. CAMBRIDGE THERMIONIC CORP. 7 June, 1966 [8 June, 1965], No. 25347/66. Heading H1T. An adjustable inductor consists of a hollow, supporting insulating unitary structure 10 with coil 20 wound on former portion 14 (of glass-fibre-filled resin), and a cylindrical core 25 having a threaded section 25.1 in the threaded adjustment sleeve portion 16 to enable complete withdrawal of tuning core from former. A flange 12, with bosses 12.1, at each corner and recesses 18.3, containing terminal contact pins 18, has a shoulder 12.5 to limit the movement of the core. A cup core 21, and cap 22 (with cut-outs to fit round the bosses) of magnetic material (ferrite or powdered iron) are fitted to the flange. The cup core, flange and cap have generally square shape. A cover 31, made resilient by slits 31.1 in its rim, holds the core down and has central holes 21.2 for access to the notch 25.5. The cover rim 31.1 can be soldered (32) to the housing 30. The construction of the body 10 may be modified by having a liner (110) (Fig. 5, not shown), of polypropylene and a head (112) moulded on to it. A flange (110.1) fits a counter bore of cap (121). Instead of having threaded walls the adjustment sleeve may have longitudinal lands (16.5) for threading engagement with the threaded section (25.1) of the tuning core.
Patent GB-676705-A (GB)
Title: Improved process for the production of 1:4-dicyano-butene
Filed: 1949-10-03
Abstract: In the production of 1 : 4-dicyanobutene by the action of alkali or alkaline earth metal cyanides on dihalo-butene in presence of copper in solution, the cyanide is added at such a rate that the E.M.F. between a metallic electrode in contact with the medium and a standard electrode is maintained within pre-determined limits so that a high rate of reaction is caused but the medium is not rendered alkaline.  A soluble cuprocyanide is formed under the conditions of the reaction.  A number of metal electrodes may be used, including copper and alloys.  The limits within which the E.M.F. must be maintained may be determined by a trial in which the first appearance of opalescence during the addition of dihalobutene and calcium cyanide to the catalyst-containing medium denotes the consumption of the cyanide and the limits are found for a maximum rate of reaction. The reaction may be continuous or batch, and is described in detail for the action of calcium cyanide or 1 : 4-dichloro-butene in presence of copper cyanide, the calcium cyanide solution being added at such a rate that the E.M.F. between the copper electrode and the standard electrode is maintained at 0.3-0.45 volts, the copper being negative.  Specification 639,438 is referred to.
Patent GB-1426502-A (GB)
Title: Process for producing carbon fibres
IPC: D01F9/32
Filed: 1973-05-29
Abstract: 1426502 Carbon fibres TORAY INDUSTRIES Inc 29 May 1973 [1 June 1972 7 Aug 1972] 25413/73 Heading C1A A carbon fibre is produced by heat stabilizing an organic fibrous material, preferably poly acrylonitrile, a polyamide, a polybenzimidazol, a polyvinylalcohol, cellulose or pitch, by heating in an air, sulphurdioxide or nitrogen monoxide atmosphere prior to passing through a carbonizing furnace at a maximum temperature above 800‹ C., but less than 1600‹ C. which is attained in the outlet half of the furnace the temperature profile obtained being such that the area under the profile in the outlet half is greater than the area in the inlet half, and the average absolute temperature gradient is greater on the cooling side than that on the inlet side.
Patent GB-351813-A (GB)
Title: Improvements in or relating to method of treating and packaging ripe or green olives
IPC: B65B25/04
Filed: 1930-08-27
Abstract: Olives are packed in a salt brine or like preservative solution in a glass bottle or other container and an edible oil, preferably olive oil, is added above the solution, after which the container is sealed, cooked and sterilized.  In use, the oil is removed from above the solution and employed as a dressing for the olives.  Flavouring materials may be added to the oil or the brine, e.g. a flavouring extract, spices, or garlic in cubes &c. may be added to the oil, or garlic in cubes, garlic extract or the juice of pressed garlic may be added to the brine so that the flavour will be imparted to the olives during cooking.  The olives may be immersed in an edible oil bath before placing in the brine.
Patent GB-320482-A (GB)
Title: Improvements in or relating to boilers and like apparatus for the evaporation or heating of liquids
IPC: F22B17/10
Filed: 1928-09-06
Abstract: 320,482. Lamb, A. Sept. G, 1928. Water-tube boilers.-A bank of water-tubes d is swept by downwardly flowing hot gases, the water, flowing in a generally upward direction by natural circulation. Combustion of fuel is effected in another communicating chamber b into which certain of the tubes e may extend, the products of combustion being cooled by contact with the tubes and being thus caused to fall over the other tubes. Specification 12613/92, [Class 64, Heating], is referred to.
Patent GB-1468425-A (GB)
Title: Production of oximes or carbonyl compounds or both oximes and  carbonyl compounds
IPC: C07C251/32
Filed: 1974-06-10
Abstract: 1468425 Oximes and carbonyl compounds ATLANTIC RICHFIELD CO 10 June 1974 [21 June 1973] 25662/74 Heading C2C A method for the production of an oxime or a carbonyl compound selected from an aldehyde and a ketone, or a mixture of oxime and said carbonyl compound, from a nitrocompound which contains up to 20 carbon atoms, is free of olefinie and acetylenic unsaturation and contains a single nitro group which group is attached to an aliphatic (including cycloaliphatic) carbon atom to which is also attached at least one hydrogen atom, comprises contacting said nitrocompound with carbon monoxide at a pressure in the range of from 10 atmospheres to 200 atmospheres, at a temperature in the range of from 50‹ to 200‹ C. in the presence of a catalyst selected from selenium, compounds of selenium, and combinations thereof, and in the presence of a base. Examples prepare cyclohexanone and its oxime from nitrocyclohexane and acetone and its oxime from 2-nitropropane. Many other nitro-compounds are specified.
Patent GB-712467-A (GB)
Title: Improvements in the production of hydroxylamines
IPC: C01B21/14
Filed: 1952-10-14
Abstract: In the production of hydroxylamine by catalytic reduction of nitric oxide with hydrogen in an acid medium in the presence of a platinum catalyst, the reduction is carried out at a temperature above 40 DEG C., e.g. up to 60 DEG C.  The nitric oxide and hydrogen are led while stirring into a suspension of platinum in hydrochloric acid at about 45 DEG C.
Patent GB-1321513-A (GB)
Title: Metal cleaning process
IPC: C11D1/00
Filed: 1971-04-19
Abstract: 1321513 Cleaning metals; electrolytic degreasing UNILEVER Ltd 19 April 1971 [1 April 1970] 25824/71 Headings C7B and C7E [Also in Division C5] Metal, e.g. Al, Zn, Fe, or bronze, is cleaned by treatment in baths (1) and (2) as defined below, either consecutively or simultaneously. Bath (1) comprises (a) a non-ionic surface-active addition product of 3-15 moles of ethylene oxide with an organic compound containing active H bound to O, S, or N (b) a fatty acid and/or alkyl polyethylene oxide-carboxylic acid and (c) an alkanolamine and/or oxazine, the amount of (c) being # 1À5 times molar excess over the amount of (b). Bath (2) is mixible with water and with bath (1) and contains (d) an alkali, e.g. KOH, K 2 CO 3 , Korthophosphate, K 4 P 2 O 7 , alkanolamine (mono, di, or tri-ethanolamine) or morpholine and (e) a sequestrant for heavy metal ion such as a salt of citric, tartaric gluconic, boro-gluconic, amino polycarboxylic or ethane-1, hydroxy-1,1, diphosphonic acid, and has pH 12À4 - 13À8 and a wt ratio free alkali; total salt # 2:1; it may also contain (f) a lowfoaming detergent, e.g. C n H 2n+1 - (OCH 2 CH 2 ) 3-5  <SP>-</SP>O(CH 2 ) 1-2  -COOH, a fatty alcohol/ethylene oxide condensate, an ethylene oxide and propylene oxide block polymer, a condensate of alkyl phenol with ethylene oxide and/or propylene oxide block polymer, or a fluorinated wetting agent such as a perfluorinated alkylsulphonic acid (g) soil-suspending agents such as carboxymethylcellulose, polyvinylpyrrolidone or polyacrylate and (h) hydrotropes, e.g. K xylene sulphonate, K toluene sulphonate, polyglycol, hexylene glycol, or cumene sulphonate. The compositions are preferably free of Na ion, and are used diluted in water. Bath (2) may be used for electrolytic degreasing at current 1-2 A dm<SP>-2</SP>; baths (1) and (2) may be mixed together, when the mixture should have pH 12À4- 13À8.
Patent GB-243875-A (GB)
Title: Improvements relating to the heating of domestic washing and like gas-heated boilers
IPC: D06F1/08
Filed: 1924-10-30
Abstract: 243,875. Mitchell, G. P. Oct. 30, 1924. Washing-boilers.-A washing-boiler is provided with an auxiliary container adjacent to, and connected to it, the auxiliary container only being heated. The boiler b, Fig. 1, is connected to a pipe coil c in the casing e, heated by a gas burner d. The connecting pipe c<1> at the bottom of the boiler is coverad by a shield m and the pipe c<2> at the, top terminates in a rose c<3>. The pipe c<2> may be flexible and may be bent towards the side of the boiler when in use. In a modification, the pipe coil c may be replaced by an annular vessel n, Fig. 5, having internal ribs o which are subjected to the heat of a burner below. Hot air may pass through an opening h into space k surrounding the boiler, and thenceto a flue l
Patent GB-303201-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F3/42
Filed: 1927-09-30
Abstract: 303,201. Ionides, A. G., and Henry, H. D. Sept. 30, 1927. Jacks.-Lifting-jacks of the kind having two communicating cylinders fitted respectively with a lifting ram and a plunger, which applies pressure to a pressure transmitting medium in the cylinders by means of a. handle and screw-and-nut mechanism, have the lifting ram acting on the ground and the ram cylinder acting on the load. The plunger cylinder A and ram cylinder B are formed of two tubes secured together at an angle of 90‹ or more, so as to form a common chamber containing grease or other plastic material of low shear strength. The lifting ram E fits the ram cylinder and is unattached to but is adapted to act on a thrust rod F carrying a ground engaging plate F'. The plunger C is similarly unattached to but is acted on by a screwed rod D actuated by a handle D<2>, the screwed rod passing through a nut D' secured in the end of the plunger cylinder by an inturned end A<2> which permits ejection of the nut under an overload. The plunger cylinder has a terminal recess A' adapted to engage an axle or other load. The load engaging member may be formed of plates G, Fig. 2, secured to the cylinder by rivets &c. G<1> and having recesses G<3> to engage the load. The crutch may be formed by a sleeve N, Fig. 3, carrying load engaging arms N<2> and being positioned relatively to the long axis of the baseplate F<3> by an offset sleeve N<3> engaging a rod O on the baseplate.
Patent GB-510058-A (GB)
Title: Manufacture of acid o-hydroxydisazo dyestuffs, capable of being after chromed
IPC: C09B31/08
Filed: 1938-09-05
Abstract: 510,058. Dyes. GEIGY AKT.-GES.. J. R. Sept. 5, 1938, No. 25908. Convention date, Sept. 7, 1937. [Class 2 (iii)] Acid o-hydroxydisazo dyes, capable of being after-chromed, are made by diazotising pamino-m-hydroxyazo dyes of the type (R-the residue of an aromatic sulphonic or carboxylic acid or a substitution product thereof), and coupling with N-aryl derivatives of 1-amino-8-naphthol-4-sulphonic acid. Alternatively a m-amino-p-cresol arylsulphonic acid ester may be used as middle component and the disazo dye saponified. In an example, the monoazo dye made from diazotised sulphanilic acid and m-amino-p-cresol by the process of Specification 13903/09 is coupled with 1-phenylamino-8-hydroxynaphthalene-4-sulphonic acid in presence of sodium carbonate and pyridine ; the product dyes wool from an acid bath in blue shades, which become yellowish-green when after-chromed. The sulphanilic acid may be replaced by the other aromatic amino-sulphonic or carboxylic acids or their substitution products referred to in Specifications 13903/09 and 13904/09, [both in Class 1 (iii)]. Similar dyes are obtained when using 1-(41-tolyl) amino-8- hydroxynaphthalene-4-sulphonic acid as end component, or by using the m-amino-p-cresol arylsulphonic esters as middle components and eliminating the arylsulphonic residue in the finished disazo dyes.
Patent GB-1518576-A (GB)
Title: Check valve
IPC: F16K15/03
Filed: 1976-06-22
Abstract: 1518576 Valves TRW Inc 22 June 1976 [25 Aug 1975] 25946/76 Heading F2V [Also in Division E2]  A check valve comprises a shaft 7 which, as shown, extends vertically and diametrically across a conduit and a pair of valve plates 2, 3 which co-operate with a valve seal and are hingedly mounted on the shaft 7, a hinge member 13 of the valve plate 2, 3 being supported above an adjacent hinge member 14 of the other plate by means associated with the valve body 1. As shown the support means consists of a sleeve 19 which encircles the shaft 7 and extends through the hinge member 14 to be in contact with and supported by the valve body 1. Bearings 18, 20 lie between the hinge member 13 and the sleeve 19, and between the hinge member 14 and the body 1 respectively. In a modification, an annular disc between the hinge members 13, 14 is pinned to the shaft 7. Alternatively, two semi-circular parts may be clamped around the shaft 7 between the two hinge members.
Patent GB-158057-A (GB)
Title: A new or improved combined tray-table and bookrest for attaching to bedsteads, chairs, stands, desks and the like
IPC: A47B23/02
Filed: 1919-10-23
Abstract: 158,057. Groome, R. C. Oct. 23, 1919. Pivoting-adjustments.-A book-rest and table for attachment to bedsteads, chairs, stands, desks, &c. comprises a tray 44 detachably secured by a bolt 41 and nut to a spring clip 31. The bolt is secured to a plate 40 on the tray which is formed as a table on one side and a book rest on the other. Angular adjustment of the tray is obtained by a sector plate 38 having holes 39 engaged by a projection 36 on the clip. The clip 31 is supported by an arm 21 connected by a pin and slot 26, 27 to a block 16 clamped to an arm 12. A web on the arm 21 may be engaged with slots 20 in the block to provide an adjustment for the arm 21 in a vertical plane. The arm 12 is pivoted to a block 2 having a pin-and-sector adjustment in the horizontal plane, and the block is mounted by means of a pin 14 in a leg 6, secured by a clamp 2 to a post and having an adjustable steadying block 8 for engaging the article to which the tray is attached.
Patent GB-335695-A (GB)
Title: Improvements relating to vacuum jacketed flasks and like containers
IPC: A47J41/00
Filed: 1929-08-27
Abstract: 335,695. Gilbert, S. E. M. Aug. 27, 1929. Compound bottles. - A vacuum flask is provided with a detachable annular vessel for milk, spirits. &c. having a flange A adapted to be gripped between the shoulder of the flask and the drinking-cup.
Patent GB-1412160-A (GB)
Title: Drive system
IPC: B62M9/16
Filed: 1973-05-31
Abstract: 1412160 Chain tensioning BORG-WARNER CORP 31 May 1973 [29 Aug 1972] 26082/73 Heading F2Q  A drive chain 28 connecting a sprocket 26 on an engine 24 with a sprocket 20 on a vehicle drive wheel 18 capable of movement between an upper position and a lower position along an arcuate path 32 centred about a pivot 34, is engaged by a tensioning element 36 movable in response to the wheel 18 movement to maintain the chain tension substantially constant. As shown the wheel 18 axle 20 is mounted on one arm 42 of a lever 40 mounted on the pivot 34, the other arm 38 of the lever mounting the element 36.
Patent GB-470887-A (GB)
Title: Method of and apparatus for preventing excessive rise of pressure in steam generators with small water content
IPC: F22B29/00
Filed: 1936-09-25
Abstract: 470,887. Boiler - pressure relieving- means ; hot - water storage apparatus. SCHMIDT'SCHE HEISSDAMPF-GES. Sept. 25, 1936, No. 26113. Convention date, Oct. 19, 1935. [Class 123 (ii)] Excess steam from a boiler 1, Fig. 2, of small water content is condensed by direct contact with a spray or a cascade of cold or slightly heated water in a drum 9 under boiler pressure. Water is sprayed into the drum from a pipe 13 branched from the feed pipe 11 between the feed pump 3 and a feedheater 4. When the steam supply valve 7 is shut, the feed water supply is stopped either by hand or automatically and a valve 12 in the pipe 13 is opened. Water flows from the drum through a float valve 16 in a pipe 27 back to the feed tank 2. In a boiler with convection circulation, the drum 9, Fig. 4, is connected to the bottom boiler drum, and the boiler feedwater flows into the drum 9 over a cascade heater 14. The spray 10 is supplied with water forced from a chamber 20 by a differential piston 21 acted upon by the boiler steam pressure. The chamber is connected to the feed pipe 11 through a non- return valve 28.
Patent GB-261869-A (GB)
IPC: A44C5/22
Abstract: 261,869. Harrop, E., and Betts, S. Sept. 12, 1925. Watchbracelets.-An adjustable slide fastener a, Figs. 1, 6, carried on the band b of a watch or like wristlet and adapted to be engaged by a corresponding fastener on the end of the band comprises a plate having its ends bent over the edges of the band so that it may be squeezed or clamped in its adjusted position. A perforation 6 is provided in each end of the plate and also a slot 5 by means of which the slide may be retained in its adjusted position by sewing. The sides of the plate are recessed at 4 for engagement by a curved tongue 16 of a fastener 15, Fig. 6, on the end of the band. Specification 17439/12 is referred to.
Patent GB-979043-A (GB)
Title: New alkylthio-steroids and process for their manufacture
IPC: C07J75/00
Filed: 1963-07-02
Abstract: The invention comprises steroids of the formula <FORM:0979043/C1/1> (wherein R1 is H2, a Hb OH or =O; R2 is H or C1-10 acyl; R3 is H or a C1-3 hydrocarbon radical; R4 is H or F; R5 is H or CH3; and R6 is C1-3 alkyl) and their preparation by reacting corresponding steroids which are 1-unsubstituted and which have a D 1-double bond with alkyl mercaptans.  Hydroxy groups present in the products, which may be liberated from acyloxy groups during the reaction may be esterified if desired. Examples are given.  D 1-Androstenes used as starting materials may be prepared by bromination and dehydrobromination of the corresponding androstanes. Other methods of production referred to are reduction of 17-ketones or reaction thereof with organo-metallic compounds, esterification of 17-ols, and oxidation of 11-ols to 11-ones.  The androstane derivatives of the invention, which are stated to be anabolics, may be made up into pharmaceutical compositions with suitable carriers.  These may take the form of solutions, suspensions, emulsions, tablets, dragees, ointments or creams, and may contain preserving, stabilizing or wetting agents, salts for varying the osmotic pressure, or buffers.
Patent GB-709561-A (GB)
Title: Improvements in or relating to protective shipping containers
IPC: B65D81/07
Filed: 1950-10-27
Abstract: 709,561. Fluid-actuated valves. FIRESTONE TIRE & RUBBER CO. Oct. 27, 1950 [Oct. 28, 1949], No. 26259/50. Class 135. [Also in Groups XIII, XVII and XXXII] A shock absorbing suspension in a shipping container (see Groups XVII and XXXII) includes metering valves regulating the flow of oil between the shock absorbing elements. The container may be pressurized and includes a spring loaded relief valve. A typical metering valve, Fig. 9, comprises a head 60 sliding on a fixed pin and having a peripheral clearance in a seating 61. A spring 62 rests on the seating 61 and resists depression of the valve by sudden flow of oil from the bellows 44 to the connecting line 47 between the elements. Oil may leak past the head through the clearance and holes 64. The valve permits free flow into the bellows. The relief valve, Fig. 15, comprises a resilient diaphragm 181 raised by pressure through ports 192 against a spring 187, air escaping through a central port 184.