baber/WOPTO huggingface dataset:
Patent GB-1118879-A (GB)
Title: Improvements in or relating to speed measuring apparatus
Inventor: AGAR WILLIAM OLIVER
IPC: G01P3/36
Filed: 1964-08-05
Abstract: 1,118,879. Measuring speed photo-electrically. MARCONI CO. Ltd. July 12, 1965 [Aug. 5, 1964], No. 31913/64. Heading G1A. The invention relates to the photo-electric determination of the relative speed between a surface and a reference point. The surface may for example, be that of a moving steel strip emerging from a rolling mill, the speed being measured relative to a fixed reference point. In such a measurement, a grid pattern 3 is projected by means of a slide on to the surface of the strip 1. The light reflected back to a photocell 5 produces a noise signal containing a definite frequency component, representative of the strip speed. After amplification the signal can be measured by a frequency meter 7 or compared a local oscillator signal, the setting of which gives the speed when maximum beat frequency output is obtained. Alternatively, the projector may be dispensed with, if the strip is light emitting or receives general illumination light from the strip being focused on to an optical grid before passing to the cell. It is stated that relative speed between a fixed surface and a moving reference point may also be measured using similar apparatus.
Patent GB-1012567-A (GB)
Title: Electrohydraulic flow control apparatus
Inventor: ADAMS CECIL EDWIN
IPC: F15B21/08
Filed: 1962-08-20
Abstract: 1,012,567. Fluid pressure servomotor systems. BRAKESHOE INTERNATIONAL S.A. Aug 20. 1962. No. 31921/62. Heading G3P [Also in Division F2] A flow control apparatus comprising a main orifice and an electromagnetically controlled pilot valve controls the supply of fluid to an apparatus, such as a motor, whereby the flow to the apparatus is maintained at a preselected constant. A pump 17 supplies fluid to part 25 of main orifice assembly 12 having an outlet 27 to a fluid motor 11. The assembly comprises two bores 34, 35. The bore 34 houses a fixed sleeve member having ports 43, 44 leading from grooves 38, 39 to a closed bore 42. A valve member 46 has a portion slidable in the bore 42 and a piston portion 47 slidable in bore 34. A land 52 controls the flow from port 44 to port 43. The piston 47 is loaded by a low rate spring 55 and is subjected on its upper face to the inlet pressure through port 60 and on its lower face to the outlet pressure at 27 through passage 87. The inlet pressure is also fed through passages 54, 53 to act on the upper portion of valve member 46. A second valve in bore 35 constitutes the main orifice and is similar in construction to the valve in bore 34 but is positioned in the reverse direction. The land 76 controls flow from the inlet 88, 62 to the outlet 27 and the piston 73 is loaded by a high rate spring 81 and is subjected to the pressures at the inlet and outlet of the pilot valve 13 through lines 103 and 104. The pilot valve 13 comprises a valve member 118 which is subjected to a loading selected by controlling the current fed to a coil 114. An inlet 100 is fed from the inlet of apparatus 12 through a restriction 99 and the outlet 104 leads by conduit 31 to tank 18. The valve member 118 is opened by the inlet pressure and maintains a constant pressure drop across the pilot valve for any given electrical current input to the coils. In operation a selective current is supplied to the coil and the valve member 118 is positioned by the fluid inlet pressure to apply a constant pressure differential to the opposite sides of piston 73 thus opening the valve to provide a fixed orifice past land 76 to the outlet 27. The land 52 of valve member 46 is positioned as above to maintain a constant pressure drop across the orifice by allowing flow from port 44 to pass through port 43, groove 38, passage 86 to passage 31 and tank 18. Thus if the pressure at the outlet 27 rises due to the motor encountering an increased load, the increased pressure acts on the botton of piston 47 to reduce the by-passed flow to port 43 and thus increase the pressure upstream of land 76 to maintain the flow constant. In a modification the flow to the pilot valve is not fed direct from the inlet but through a constant flow device which allows a small flow. In this embodiment the flow through the pilot valve is not returned to the tank but is added to the flow through the main orifice and fed to the motor.
Patent GB-1391410-A (GB)
Title: Hcf fuel pump and fuel tank combination for vehicles
IPC: F04D29/60
Filed: 1973-07-05
Abstract: 1391410 Axial-flow pumps DR-ING H C F PORSCHE AG 5 July 1973 [4 Aug 1972] 32040/73 Heading F1C A pump. rotor 15 is mounted at the free extremity of a pressure pipe 9 which is connected to the driving motor 12, an annular flange 6 being releasably connected to an annular flange 7 surrounding an opening 3 of a fuel tank 4 when the pump is used for pumping fuel from the tank. The flanges 6, 7 are connected by a V-section metal strap 2. After release of the strap 2 and a quick-release coupling (not shown) at the discharge connection 8, the pump can be removed from the tank and inserted into a barrel or another fuel tank so as to refill the tank 4 via a hose. During refilling, the motor 12 may be switched to run at a higher speed.
Patent GB-211244-A (GB)
Title: Improvements in heat exchangers
IPC: F28F13/12
Filed: 1922-11-23
Abstract: 211,244. Cave, T. R. Cave-Browne-. Nov. 23, 1922. Straight tube apparatus having internal baffles in tubes.-A boiler or water heater tubes 3 for utilizing highvelocity exhaust gases from an internal combustion engine is furnished with an internal co-axial baffle 4 which, at intervals, has flattened parts 6 with edges in contact with the tube, lying in different planes, for example at right angles to adjacent flat parts. The intermediate parts gradually merge from the flattened formation 6 in one plane through an approximately circular shape 7 of less diameter than the bore, to the flattened formation 6 in another plane. Specification 16948/11 is referred to.
Patent GB-1480273-A (GB)
Title: Cylinder and piston valve
IPC: F15B13/04
Filed: 1974-07-19
Abstract: 1480273 Valves SANDERS ASSOCIATES Inc 19 July 1974 [26 Sept 1973] 32076/74 Heading F2V [Also in Division G3] A valve, e.g. controlling a relay valve in a servosystem, comprises a housing 11 slidably containing landed spools 41, 42 biased by opposed springs 46 against a central arm 58 actuated by electric torque motor 55. As shown, the spools 41, 42 are slidable within respective stepped sleeves 14 (15, Fig. 1b not shown) which are themselves slidable within housing 11. Thus when pressure fluid is supplied via inlet ports 34, (37) to respective annular grooves 25 the differing areas of the left and right walls of the latter cause sleeves 14, (15) to be urged away from actuating arm 58 and into contact, via bushes 47, with adjustable end stops 53, (63). The latter enable grooves to be correctly set relative to lands 43. An input signal to torque motor 55 causes arm 58 to displace spools 41, 42 to control flow from inlet 34 (or 37) to the respective outlet 33 or 36. Ports 35, (38) may provide a feedback signal or be connected to a fluid return. In a modification (Figs. 2a, 2b, not shown) sleeves 14, (15) are not provided, each spool has an additional land (84), and fixed protrusions 61, 62 are replaced by adjustable screws (97, 102) having rounded ends (99) bearing on the actuating arm (94).
Patent GB-1416808-A (GB)
Title: Method for preparation of copolymers by the partial hydrolysis of  acrylonitrile polymers and copolymers in nitric acid
IPC: C08F8/00
Filed: 1973-07-05
Abstract: 1416808 Hydrolysis of acrylonitrile polymers CESKOSLOVENSKA AKADEMIE VED 5 July 1973 [14 July 1972] 32144/73 Heading C3P Polyacrylonitrile, and copolymers of acrylonitrile with up to 15 mol per cent of other monomers, are hydrolysed by (i) adding the polymer to agitated nitric acid of 50-72% concentration at a temperature of -15‹ to - 50‹ C. to form a suspension of pasty consistency, and (ii) warming the mixture to - 5‹ to + 40‹ C. and maintaining it at this temperature for a time sufficient to effect the required degree of hydrolysis. The second stage may be effected in a mould. Examples describe the hydrolysis of polyacrylonitrile, acrylonitrile / acrylamide copolymer, acrylonitrile / acrolein / acrylamide copolymer and acrylonitrile/n-butyl acrylate copolymer.
Patent GB-466035-A (GB)
Title: Improvements in or relating to the combined drying and grinding of materials
IPC: B02C17/18
Filed: 1935-11-20
Abstract: 466,035. Ball or tube mills. JORGENSEN, M. VOGEL-. Nov. 20, 1935, No. 32205. [Class 59] [Also in Group XIII] In a ball mill, part of the air or gas used for drying the material is discharged without coming into contact with the material during or after grinding. As shown, a drying compartment 2 is formed in the drum 1 and comprises a concentric row of fixed or rotary cylinders 7. Hot air from a fan and material from the inlet 6 pass through the cylinders 7, the material falling into the lifting compartment 9 for conveyance through the grinding compartments of the mill together with part of the hot air, whilst the remaining part of the hot air is withdrawn by a fan out of the drying chamber through the outlet 8 which may be arranged at either end of the mill. The material and hot air may be passed in the reverse direction. The mill may be divided into two parts connected by a trunnion bearing.
Patent GB-360645-A (GB)
Title: Improvements in or relating to boiler feed water heating plants
IPC: F22D1/42
Filed: 1930-10-27
Abstract: 360,645. Heating feedwater. DURIN, H. D., 52, Rue de Tauzia, Bordeaux, France. Oct. 27, 1930, No. 32223. Convention date, Oct. 28, 1929. [Class 64 (i).] Feedwater heating plant, particularly for locomotives, comprises a surface heater 8 supplied with steam through pipe 10, the condensate from which collects in a tank 12 and passes into a vessel 2 and mixes with the cold feed, the mixture being delivered by pump 4 through heater 8 to the boiler. A throttling member 14, controlled by the pressure in the cylinders, may open the connection 13 between tanks 12, 2 when the locomotive throttle is shut and the surface heater receives little heating steam, to allow a large amount of warm condensate from tank 12 to mix with the feed in tank 2. When the throttle is opened, connection 13 is closed and hot water is stored in tank 2. A connection 15 bypassing the valve 14 may be provided to enable overflow from tank 12 to pass to tank 2 at all times.
Patent GB-1081922-A (GB)
Title: Improvements relating to electrical indicator lamps
Inventor: LOBELLE MARCEL JULES ODILON
IPC: H01J63/00
Filed: 1964-08-07
Abstract: A lamp has a first electrode, e.g. a metal sprayed on the inside of the envelope, a piezoelectric crystal and a second electrode, e.g. an annular layer round the crystal, and a layer of a phosphor between the two electrodes which is both fluorescent under ultra-sonic energy and electroluminescent under the generated voltage; the crystal forms the output stage of an oscillator causing the phosphor to glow.  The crystal may carry two concentric annular electrodes on its face, and form a transformer in the oscillator circuit which includes an N.P.N. transistor (see Division H3).  The vibrations of the piezoelectric element determine the frequency of oscillation of the oscillator, e.g. 460 kc., using a 10-30 volt D.C. input.  The crystal is preferably a piezo-ceramic type, but may be of Rochelle salt or quartz.  The envelope of the lamp may carry an end shaped as a lens, and the element coated with the phosphor may be any required alpha-numeric shape, to give the corresponding indication.
Patent GB-883231-A (GB)
Title: Improvements in or relating to apparatus for controlling series of operations
Inventor: BEECH AUSTIN SIDNEY
IPC: G05B19/43
Filed: 1958-10-09
Abstract: 883,231. Pneumatic single-stroke apparatus. FOUNDRY EQUIPMENT Ltd. Jan. 7, 1960 [Oct. 9, 1958], No. 32315/58. Class 8(2). [Also in Group XXIX] Sequential control of a series e.g., twelve compressed air actuated jacks only three viz., 100, 101, 102, Fig. 5, of which are shown is effected by a unit comprising a distributing valve block 98, Fig. 3, having a main inlet port 123 and a ring of twelve delivery ports 115 connected by pipes 99 to the jacks and to which compressed air is admitted in turn via a recess 122 in block 98, a passage 121 in a step-by-step rotated shaft 97, a passage 120 in a disc 61 fixed to shaft 97 and a nozzle 117 carried by a ring 116 fixed to disc 61 the step-wise rotation of which is effected by rachets 13, 14 on a shaft 15 actuated by pawls 37, 38 carried by a double-acting compressed air jack 24 controlled by a shuttle valve 90 actuated by a signal pulse of air transmitted to say pipe 88 leading to one side of said valve 90 when the jack 100-102 being operated reaches the end of its stroke through an appropriate signal pipe 106, 107, 108, an appropriate port 72 and chamber 70 in a block 16 to which valve block 98 is secured by a sleeve 110, one of twelve nozzles 62 arranged in two concentric rings in a face of said block 16, a port 73 and passage 77 in the disc 61 (which also acts as a signal-receiver disc), bores 79, 81 in the shaft 15, and a recess 83 and bore 86 in block 16 leading to pipe 88 ; the other side of the valve 90 being connected to exhaust through a pipe 89, a bore 87 and recess 84 in block 16, bores 82, 80 in shaft 15, passages 78, 74 in disc 61 which passage 74 when not in register with a nozzle 62 is vented to exhaust port 76 through a gap between face 63 of disc 61 and the adjacent faced-block 16. The signal pulse sent out by each jack at the end of its working stroke is transmitted from the main compressed air line through limit valves 103, 104, 105 and the return stroke of each jack is effected by virtue of pipes 99 being connected to exhaust port 76 through a gap between adjacent faces of value block 98 and the nozzle-holding ring 116. If desired a particular jack may be held in the extended position during the operation of the next jack by a hold-on valve 126 actuated by a cam 124 on the distributing valve rotor 97.
Patent GB-323159-A (GB)
Abstract: 323,159. Cayzer Tin Smelting Co. (Proprietary), Ltd. Jan. 29, 1929, [Convention date]. Charges, agitating; hearths.-In a reducing furnace more particularly adapted for the extraction of tin, and of the kind comprising a rotary hearth 2 carrying a bed of material such as spongy iron through which the molten metal percolates, the rabble 11 is so arranged relatively to a rim 17 on the hearth that a pool of molten metal can collect on the surface of the charge. Solid residue is lifted over the rim 17 by a scraper blade 21 and falls into the annular space 18 where it remains for a time to allow any molten metal to drain off. The residue is finally discharged by a scraper 28 over a pivoted plate 29, which extends beneath a flange 30 on the rim 16. The rabble arm 11 is uncooled and made of carborundum, while the teeth 12 are made of carbon. The rabble can be tilted bv screws 25 to clear the rim 17, and can then be withdrawn from the furnace on a guide 23. The rim 17 may be formed by the material under treatment, and in this case the rabble would be moved inwards from the position shown.
Patent GB-380650-A (GB)
Title: Improvements in and relating to two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1931-11-24
Abstract: 380,650. Two-stroke engines. KREIDLER, A., 1, Gansheidestrasse, Stuttgart, Germany. Nov. 24, 1931, No. 32528. Convention date, March 14. [Class 7 (ii).] In a Diesel or explosion engine with oppositely moving pistons 1, 2 driving the shaft through rollers 7 and cams 3, the latter are shaped to give a period of opening of the inlet and exhaust ports 5, 6 at least as long as the expansion period. The exhaust ports 6 open and close earlier than the inlet ports open and close. Each inlet passage 13, Fig. 3, may be divided by a partition 10 into two ducts 11, 12 ; air only enters by the duct 12, but fuel is drawn from a nozzle 14 by the air flowing through the duct 11. The fuel flow is controlled by a valve, which opens only when the duct 12 is shut off. The air or mixture is supplied by a blower.
Patent GB-871652-A (GB)
Title: A device for recording or registering shock
Inventor: PIERCE CHARLES WILLIAM
IPC: G01V1/18
Filed: 1958-10-13
Abstract: 871,652. Impact detectors. AVIATION MINISTER OF, and ENFIELD CYCLE CO. Ltd. Oct. 12, 1959 [Oct. 13, 1958], No. 32547/58. Class 106 (3). Apparatus for recording shock comprises a housing a incorporating a spring-loaded plunger b carrying a needle e adapted to pierce a metallic foil disc h normally held by the housing in slightly spaced relation from the point of the needle. The upper part b<SP>2</SP> of the plunger b slides in a plug c which bears on the spring d, the compression of which can thus be adjusted by screwing the plug c in or out of the housing a. A cap # secured by a screw f clamps a washer g over the bore c<SP>1</SP> with the disc h interposed. When the housing is subjected to an acceleration above a limit determined by the setting of the spring, the needle pierces thedisc h to record the occurrence of the shock. The housing may incorporate six needles to record shock in opposite directions in three intersecting planes. The apparatus may be readily attached to an article to be transported by providing a flange, oppositely slotted to engage studs on the article.
Patent GB-791146-A (GB)
Title: Improvements in or relating to production of betaine hydrochloride
Filed: 1955-11-15
Abstract: Betaine hydrochloride is recovered from sugar beet waste liquor, e.g. Steffen's filtrate, vinasse, or concentrated Steffen's filtrate end liquor remaining after the removal of glutamic acid, by adding hydrochloric acid to adjust the pH to less than 1, allowing betaine hydrochloride and inorganic salts to crystallize therefrom at an initial liquid-phase specific gravity between 1.2 and 1.5, preferably between 1.35 and 1.5, applying centrifugal force to the resulting slurry while retaining the liquid phase, whereby the betaine hydrochloride and inorganic salts move to and collect at the top and bottom respectively of the liquid phase, and separating betaine hydrochloride from the top of the liquid phase.  Two detailed examples are given in which Steffen's filtrate and Steffen's filtrate end liquor remaining after the removal of glutamic acid are treated by the above process.ALSO:Inorganic salts, e.g. sodium and potassium salts, are recovered from sugar beet waste liquor by adding hydrochloric acid to adjust the pH to less than 1, crystallizing betaine hydrochloride and inorganic salts therefrom at an initial liquid specific gravity between 1.2 and 1.5, preferably between 1.35 and 1.5, applying centrifugal force to the resulting slurry while retaining the liquid phase whereby betaine hydrochloride and inorganic salts separate to the top and bottom respectively of the liquid phase, separating betaine hydrochloride from the upper surface, and removing inorganic salts from the remaining liquor.  In the examples Steffen's filtrate and Steffen's filtrate end liquor remaining after the removal of glutamic acid are treated by the above process, sufficient hydrochloric acid being used to produce a pH of 0.5 for the crystallization step, and the inorganic material obtained in each case contains potassium, sodium and chloride ions.  Vinasse is also mentioned as a sugar beet waste liquor.
Patent GB-482764-A (GB)
Title: Improvements relating to hook fastenings for wearing apparel
IPC: A44B13/00
Filed: 1936-11-30
Abstract: 482,764. Hooks and eyes. WALKER, Ltd., T., and WALKER, G. T. Nov. 30, 1936, No. 32702. [Class 43] A hook fastener for use with an eye &c. on wearing-apparel comprises a hook member 3 carried by a plate 2 which is provided at its edge with integral lugs &c. 4 adapted to be passed through the material of the garment 1 and to be clenched over behind a separate clamping plate 5 which is provided with obliquely disposed slots 6 through which the lugs &c. 4 are passed before clenching over. The lugs &c. 4 are arranged diagonally of the plate 2, projecting from the four mitred corners, so that when they are clenched over they extend towards the centre thereof (Fig. 2).
Patent GB-1285124-A (GB)
Title: Esters of substituted anthranilic acid
IPC: C07C227/18
Filed: 1970-07-07
Abstract: 1285124 Esters and amides of N-[3-trifluoromethylphenyl]- anthranilic acid TROPON GmbH 7 July 1970 [1 Aug 1969] 32793/70 Heading C2C Novel compounds of the Formula (I): where n is 0, 1 or 2, R is OH, C 1-4  straight or branched alkoxy in which the alkyl may be substituted by OH, an amino or straight or branched mono- or di-alkylamino in which the alkyl may be substituted by OH, may be obtained by reacting a metal salt of N-(3-trifluoromethylphenyl) anthranilic acid with a compound of formula X-CH 2 -(CHOH) n COR in which X is a halogen atom or a sulphonic acid ester radical. The ester may be hydrolysed to yield the free acid. A product in which R is 2,3- dihydroxypropoxy may also be obtained by acid hydrolysis of a compound of Formula I in which R is 2,2 - dimethyldioxolanyl - (4) - methoxy. The latter compound is obtained by reacting the potassium salt of [N-(3-trifluoromethylphenyl)- anthraniloyl] glycollic acid with 4-chloromethyl- 2,2-dimethyl dioxolane. Pharmaceutical preparations having antiinflammatory activity comprise compounds of Formula (I) above in association with a pharmaceutically acceptable carrier.
Patent GB-259431-A (GB)
Title: Process for obtaining liquids in a solid form
IPC: B01J19/06
Filed: 1925-12-29
Abstract: 259,431. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 29, 1925. Liquid fuel; mineral and tar oils; fats and fatty oils; lubricants for machinery.-Liquids are gelatinized by addition of a magnesium alcoholate in presence of a small quantity of water. In examples. 120 lb. of methyl alcohol containing 0.5-1.0 per cent of water is mixed with a solution of 1lb. of magnesium in 30 lb. of methyl alcohol; and 1-2 lb. of magnesium alcoholate solution is added to 10 lb. of castor oil, and 0.1 lb. of water dissolved in a little alcohol is stirred in. Other suitable liquids specified are ethyl and other alcohols, engine or other oils, liquid hydrocyanic acid, epichlorhydrin, chloroform, benzene, xylene, and mixtures of liquids with liquids, solids, or gases e.g. alcoholic ammonia. The process may be combined with other processes for solidifying liquids. Thus gelatinized alcohol that burns without melting is obtained by treating 30 lb. of absolute alcohol with sodium stearate in known manner to obtain a product melting at about 42‹ C., adding a small quantity of water and then a solution of 1lb. of magnesium in 30lb. of methyl alcohol while maintaining a temperature of 42‹ C. The magnesium alcoholate is usually prepared by adding magnesium to absolute alcohol, starting the reaction by adding a trace of bromine or alcoholate solution, and preventing any considerable rise in temperature.
Patent GB-1402877-A (GB)
Title: Support material
IPC: G03C8/52
Filed: 1972-07-13
Abstract: 1402877 Coated sheet material EASTMAN KODAK CO 13 July 1972 [19 July 1971] 32855/72 Heading B2E [Also in Divisions C3 and G2] A sheet material is coated with a compositon comprising dispersed barium sulphate, an optical brightener and a binder which comprises polyvinyl alcohol and is free from proteinaceous substances. The optical brightener is water-soluble and triazine stilbenes and coumarins are exemplified. The composition may also contain a light-stable blue dye or pigment or a mixture of a blue and magenta dye or pigment.