baber/WOPTO huggingface dataset:
Patent GB-261138-A (GB)
Title: Improvements in or relating to the governing of turbo compressors
IPC: F04D27/02
Filed: 1925-09-10
Abstract: 261,138. General Electric Co., Ltd., and Pochobradsky, B. Sept. 10, 1925. Regulating and controlling.-The flow of fluid through a turbo-compressor is automatically restricted and the pressure on delivery is reduced when the rate at which fluid is delivered falls to a predetermined value. When this occurs the speed of the machine is limited to a lower rate than the rate of normal operation. The fluid flows from suction, through the throttle valve 1, the compressor, and the control valve 3 to a receiver; a branch pipe on the delivery side includes a relief valve 2. The driving turbine is regulated by a throttle valve 4 in its steam supply pipe, the valve being controlled by a constant pressure governor 6 and a centrifugal governor 7. The throttle valve 1 of the compressor, and the relief valve 2 are operated by a power piston 10 controlled by the piston 8 and slide valve 12 operated by the valve 3 which comprises the weighted flap 44 movable between stops 46, 47 according to the flow of fluid. The setting of the centrifugal governor may be varied by variation of the compression of the springs 37 due to the action of the piston 11. When the rate of deliver is above the predetermined value, the speed of the machine is regulated by the throttle 4 controlled by the pressure governor 6; the centrifugal governor 7 acts as a speed limiting device. If the receiver pressure drops, the cylinder 22 of the pressure governor is moved downwards by its spring 24, and thus moves the piston 17 downwards. This admits oil under pressure to the cylinder 15, raises piston 5 to open wider the valve 4, and the same movement returns the piston 17 to cut off the oil supply. The return of the piston 17 is also assisted by the upward movement of the cylinder 22 as the pressure in the receiver rises to normal. If the pressure rises above normal, the piston 17 is raised and oil escapes from the cylinder 15 through the pipe 21 and the steam throttle valve 4 is moved towards its closed position. The piston 17 is also operated by the centrifugal governor, to close the throttle 4 if the speed rises above a predetermined maximum. As the rate of fluid discharge falls the flap 44 also falls, thereby raising the piston 8 and admitting pressure oil to the cylinder 66. This raises the piston 10 which opens the relief valve 2 and moves the throttle valve 1 in the compressor suction towards its closing position. At the same time oil is supplied through pipes 42 to operate the piston 11 to vary the setting of the centrifugal governor. When the pressure of the oil in the cylinder 66 is relieved the parts return to their normal position. Specification 117,028 is referred to.
Patent GB-1309599-A (GB)
Title: Intergrated circuits with discretionary wiring
IPC: G11C29/04
Filed: 1970-05-11
Abstract: 1309599 Semi-conductor devices HONEYWELL Inc 11 May 1970 [12 May 1969] 22619/70 Heading H1K A method of interconnecting a number of sound identical networks 11 carried by a substrate 10 with their respective input and output contacts 1, 5, 6, 7, 8, 9 located in a rectangular pattern comprises testing networks to ascertain whether they are sound or defective and forming the interconnections of the required number of sound networks accordingly by deposition of a pattern of generally parallel conductors 12 over the respective input and output contacts of all the networks in such a manner that the defective networks are bridged. This bridging is achieved by deposition of a dielectric prior to deposition of the conductors, and etching apertures only over the contacts of the sound networks so that the conductors only make contact with these networks. Parts 13 of conductors which short input and output contacts of a given network are removed by etching. Etching patterns are provided by use of photoresists.
Patent GB-821043-A (GB)
Title: Improvements in or relating to control means for fluid operated piston or like actuating devices
Inventor: MILLER ALBERT ARTHUR
IPC: F16H61/02
Filed: 1955-08-08
Abstract: 821,043. Change-speed control. SELFCHANGING GEARS Ltd. June 28, 1956 [Aug. 8, 1955], No. 22747/55. Class 80 (2). [Also in Groups XXVIII, XXIX and XXXIV] An hydraulic or pneumatic actuator, particularly for actuating the brake mechanisms of epicyclic gear trains and providing the desired rate of brake application and release, comprises an actuator piston 2a sliding in a cylinder 1 which has a port 8 controlled by a valve spool 2. Spool 2 is spring urged into engagement with a stop 11, in which position port 8 is open to a passage 3. A port 18 in the cylinder opens into the valve bore adjacent stop 11 and is in permanent communication, through a restricted passage, with the passage 3. When an electromagnet 24 is actuated to unseat an inlet element 31 of a primary control valve, liquid is admitted through a passage 25 to passage 3, and thence through port 8 into the cylinder. Pressure is applied through port 18 to the lefthand end of the spool 2, and when the pressure of a spring 17 is exceeded, the spool is moved to the right, closing port 8. Thereafter liquid passes through the restriction and port 18 to the cylinder so that the pressure slowly builds up to its final value. When magnet 24 is deenergized, the primary valve is spring-urged to a position in which an outlet element 30 is unseated, and liquid from the cylinder initially passes to exhaust through port 18 and the restriction. When the pressure in cylinder 1 has fallen sufficiently spool 2 is urged to the left by its spring and cylinder 1 exhausts rapidly through port 8. An actuator and its associated system is provided for each brake, and the restrictions may be so chosen that the release of one brake is delayed until the next selected brake is engaged or a delay may be provided between gear changes.
Patent GB-149537-A (GB)
Title: Improvements in and relating to process of treating fruit juices
IPC: A23L2/46
Filed: 1919-09-17
Abstract: 149,537. Hieber, J. G. F. Sept. 17, 1919. Sterilizing fruit juices.-Fruit juice from a press 1 is run through the cylinders 3, 4 of a preheater 2 in which it is heated by the sterilized juice, then along a pipe 10, and through the cylinders 11 of a sterilizer 12 heated by steam or hot water, through the preheater on the outside of the cylinders, through the cylinders 19 of a cooler 3<A> in which cold water or brine circulates, and then to storage tanks 24 to which carbon dioxide may be supplied. The juice enters at the base of the cylinders and leaves at the top. Valved connexions between the bases of the cylinders are provided for cleaning purposes. The cylinders of the sterilizer are placed progressively at lower levels to allow of complete draining. To prevent or remove deposits in the sterilizing cylinders a reverse circulation may be obtained in the cylinders by a pump 30, the valved connexions 16 between the bases of the cylinders being opened. 'The upper ends of the cylinders, except those of the preheater, have vent openings controlled by floats in the cylinders to allow the escape of air.
Patent GB-728678-A (GB)
Title: Improvements in devices for transmitting motion through pressure-tight walls
IPC: F16J15/52
Filed: 1952-09-11
Abstract: 728,678. Stuffing-box substitutes. BENDIX AVIATION CORPORATION. Sept. 11, 1952 [Sept. 26, 1951], No. 22867/52. Class 122 (5). [Also in Group XIX] A device for transmitting motion through a pressure-tight wall 12, Fig. 4, comprises a sealing bellows 26 forming part of the said wall and an arm 34 at one edge of the movable end of the bellows to which arm said motion is applied. Parallel with the axis of the bellows are a pair of wires 31, Figs. 2 and 3, diametrically opposed on opposite sides of the part 34, each wire 31 being fastened to the two ends of the bellows and to each corrugation so that the bellows 26 can only deflect in a direction perpendicular to the plane containing the wires. This motion is transmitted by a T-shaped arm 30 within the bellows to a mechanism on the other side of the pressure-tight wall. Specification 543,653, [Group XIX], is referred to.
Patent GB-640997-A (GB)
Title: Improvements in or relating to cigarette and cigar holders
IPC: A24F13/08
Filed: 1948-09-17
Abstract: 640,997. Cigar and cigarette holders. GEE, G. Sept. 17, 1948, No. 22887/47. [Class 130] In a holder in which spring fingers 6, which are clamped between a plug 5 and the mouthpiece 1. are contracted into engagement with the cigarette or cigar by a sliding sleeve 2, a ridge 5a limits the pressure of the fingers. The plug is dished at 13 and the sleeve and the mouthpiece are preferably formed of a light metal and a plastic respectively, the sleeve being pressed forward by a spring 9.
Patent GB-674134-A (GB)
Title: A balloon catheter and process for its manufacture
IPC: A61M25/00
Filed: 1949-09-03
Abstract: 674,134. Catheters. RUSCH, W. Sept. 3, 1949 [Aug. 15, 1949], No. 22894/49. Class 81 (ii). A catheter is made from extruded rubber tubing having two or more bores, the larger 1 forming the catheter tube and the smaller 2 forming the air tube. The required length of the tubing is laterally perforated at 5, 8 and the outer extremities of the air tube are sealed. Thereafter a rubber sleeve 11, forming the balloon sac, is drawn over the orifice 8, a head 6, with discharge apertures 7, is formed at one end, funnels 3, 4 are fitted at the other end and the whole is dipped in rubber so as to unite the sac with the body.
Patent GB-712421-A (GB)
Title: Improvements in methods of and apparatus for the measurement of continuously flowing comminuted materials
Inventor: GALLEY GORDON WILLIAM
IPC: G01F1/00
Filed: 1951-10-02
Abstract: 712,421. Measuring quantity of material on a conveyer photo-electrically. UNILEVER, Ltd. Sept. 26, 1952 [Oct. 2, 1951], No. 22925/51. Class 40 (3). [Also in Group XXXVIII] The cross-sectional area of powdered material on a conveyer is determined by directing a beam of light on to the material and receiving on a photo-electric cell an image of the cross section of the material formed by the intersection of the boundary of the beam and the material. As shown, Fig. 3, the boundary is formed by a light source 5 situated above the conveyer 2 on which the material passes through a housing 4. The boundary of the beam is a straight line and is formed by a four sided shroud 9 one edge of which has a lip 10 which is situated below the line filament of the lamp. The measuring photocell 12 is situated on a carrier 16 in a housing 14. The image is focused on to the cell by a lens system 18 and carrier 16 embodies a mask which restricts the area from which the cell receives light and is so arranged that its lower edge allows light to reach the cell from the intersection of the beam and the empty conveyer. A reference cell 13 is similarly mounted and is arranged to receive light from the centre of the conveyer so that the cell field is completely obscured when only small quantities of material are present on the conveyer. Circuits and operation, Fig. 5.-Either of photo-cells 12, 13 the output of which is smoothed by condenser 25 may be connected by switch 23 to a magnetic push-pull amplifier 24 in the output of which is connected full wave rectifiers 26, 26'. A milliammeter 28 and variable shunt 29 are connected between the common negative of the two rectifiers and the mid point of resistors 27 joining the positive terminals. The apparatus is calibrated by means of a standard tray of material on the conveyer and the reading of the instrument with the reference cell connected is noted so that the apparatus may later be checked for variations in emission of the light source. If the speed of the conveyer is constant the meter may be calibrated directly in flow. If not a tachometer generator coupled to the conveyer may supply a voltage to be multiplied electrically to the cell output. Control of second material in accordance with quantity on conveyer, Fig. 6.-Milliammeter 28 is replaced by a potentiometer 30 and a differential servo-amplifier receives a voltage from the slider of the potentiometer and a second potentiometer 31. The difference voltage is amplified and fed to a servo-motor 40 which brings the difference voltage to zero by adjusting the slider of potentiometer 30 and simultaneously adjusts a slider 41 of a further potentiometer controlling the speed of motor 43, and thus the feed of a second powder through a rotary valve 44. The ratio of the feed of this material and that on the conveyer is thus kept constant.
Patent GB-231757-A (GB)
Title: An improved tipping ash and rubbish bin
IPC: B65F1/14
Filed: 1924-09-29
Abstract: 231,757. Hackett, R., and Jefferson, J. H. Sept. 29, 1924. Locks.-In a lock for a wall door, a bar 10 is moved back against a spring 11 by the force of the key on a projection 12 on the bar.
Patent GB-1334753-A (GB)
Title: Heat exchanger
IPC: F24H1/20
Filed: 1971-04-19
Abstract: 1334753 Water storage heaters GUSTAVSBERGS FABRIKER AB 19 April 1971 [4 March 1970] 22933/71 Heading F4A A heat exchanger e.g. a water storage heater comprises a casing 1 having a partition 3 with a large surface area compared with that of an element 2 for heat supply, the partition dividing the casing into large and small chambers 5, 4 there being intercommunicating means 6 therebetween to allow for take-up of expansion of the liquids of the chambers. As shown, the heating element 2 which may be an elongated heating coil containing hot water but is preferably an electric immersion heater protrudes into the small chamber, the liquid to be heated flowing into and out of the large chamber through ducts 8, 10. The intercommunicating means may take the form of a small passageway, pipe or a seal Fig. 3 (not shown) formed by overlapping flanges (17, 16) which restricts flow between the chambers. A vent 7 to atmosphere is provided for the small chamber and may include a manual or automatic control valve.
Patent GB-924252-A (GB)
Title: 16ª -methyl-allopregnanes substituted in the 21-position and process for their manufacture
IPC: C07J7/00
Filed: 1959-07-03
Abstract: The invention comprises a compound of the formula: <FORM:0924252/IV(a)/1> in which R1 and R2 each represent an oxo group, or a hydrogen atom together with a free or esterified hydroxyl group, and R3 represents a bromine atom or a free or esterified hydroxyl group and a process for the manufacture of a 16a -methyl-21-acyloxy-allopregnane-17a -ol-3,20-dione by brominating a 21-unsubstituted-16a -methyl-allopregnane-3b ,17a -diol-20-one in an alcohol-containing solvent to which a lower aliphatic acyl halide has been added, reacting the resulting 21-bromide with an alkali metal salt of a lower fatty acid, oxidising the free 3b -hydroxyl group without isolating the intermediate product and if desired esterifying a free 11a -hydroxyl group that may be present.  The bromination may be effected, for example in chloroform containing an alcohol to which acetyl chloride has been added.  Specifications 924,251 and 924,254 are referred to.
Patent GB-952877-A (GB)
Title: Worm or screw press
IPC: B29C48/395
Filed: 1960-06-30
Abstract: 952,877. Continuous mixing appliances. R. HAGEN, [trading as KAUTEX-WERKE REINOLD HAGEN]. June 30, 1960 [Feb. 5, 1960], No. 23006/60. Heading B1C. [Also in Division B5] A worm or screw press for plasticizing and extruding plastic material, more especially thermoplastic synthetic plastics, comprises a housing having inlet and outlet openings and in which a worm is mounted for rotation about its longitudinal axis, the housing and the worm tapering conically over the whole or parts of their length and being displaceable backwards and forwards relatively to one another, for the purpose of regulating the throughput capacity of the press, and the worm, over its entire length or parts thereof, having opposite threads in addition to the normal threads acting in the intended conveying direction. The worm is tapered conically in the same direction as the housing, either in the conveying direction or in the opposite direction, and has the same conicity as the housing or else is tapered to a smaller degree. In the embodiment shown in Fig. 2, the housing 11 tapers conically from the inlet 18 to the outlet 21 except for the portion 25 immediately in front of the outlet 21 which is cylindrical. The worm 24 tapers in a similar manner and on its cylindrical portion has a thread 27 acting opposite to the conveying direction 20 in addition to a thread 26 acting in the conveying direction. Whereas the thread 26 is single-start on the conically-tapering portion of the worm 24, it is three-start on the cylindrical portion, as is thread 27, the two threads having the same pitch on this cylindrical portion. The thread 27 is milled in the core of the worm remaining after the thread 26 has been cut. The worm 24 is displaceable axially relative to the housing 11 to vary the gap between the two. The intersections of the oppositely-directed threads 26, 27 result in a number of continuous grooves extending longitudinally of the worm which promote an accelerated transport of the material while efficient kneading and mixing is simultaneously effected by the oppositely-directed threads.
Patent GB-761241-A (GB)
Title: Improvements in and relating to the testing of the location of a conductor within an insulating covering
Inventor: LUX HORST DIETER
IPC: G01R31/02
Filed: 1953-08-20
Abstract: 761,241. Coating cables by extrusion. MACKENZIE, M. Aug. 17, 1954 [Aug. 20, 1953], No. 23030/53. Class 87(2). [Also in Groups XXXV and XXXVI] The conductor 10, Fig. 1, of a cable is fed through a die 11 and covered by material 12 forced through the die in a plastic condition by a threaded member 13. The apparatus is heated by a fluid 14, and the cable after being covered is cooled by air blasts from nozzles 15, or by pressing the cable through a tank containing water or other suitable liquid. The position of the die relative to the conductor is adjustable manually by screws, 55, or automatically through motors 73, 74, (Fig. 7), fed by error signals obtained from apparatus for determining the eccentricity of the conductor in its covering in two perpendicular directions, comprising electrodes placed on or around the cable after it emerges from the die, or located in an insulating extension 78, (Fig. 9), of the die.
Patent GB-993059-A (GB)
Title: Process for the production of polyoxymethylenes
IPC: C08G2/00
Filed: 1961-06-26
Abstract: Anhydrous formaldehyde is polymerized in non-aqueous condition using as catalyst a compound of formula <FORM:0993059/C3/1> where R2 is a divalent organic radical or a direct bond, R1 and R2 are hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkaryl radicals, X is a direct bond or one or more of the groups <FORM:0993059/C3/2> and R1 and R3 when X is a direct bond may, with the nitrogen atoms, be linked to form a heterocyclic ring system, and n is a whole number of 2 or more.  In examples, the catalysts are poly-(ethylene-bis-thiuramdisulphide) poly-(decamethylene-bis-thiuram disulphide, poly - (hexamethylene - bis - thiuramdisulphide), poly - (octamethylene - bis - thiuram disulphide), poly-(trimethylene-bis-thiuram disulphide), poly - (pentamethylene - bis - thiuram disulphide) and poly-(p-phenylene-bis-thiuram disulphide) while others are listed. Benzine and trichlorethylene-benzine mixtures are specified solvents. Specifications 557,873, 744,336, 766,629, 793,673 and 796,862 are referred to.
Patent GB-598758-A (GB)
Title: Vacuum distillation apparatus
IPC: B01D3/10
Filed: 1945-09-08
Abstract: <PICT:0598758/III/1> <PICT:0598758/III/2> Vacuum distillation apparatus comprises a stationary vaporizing surface having the shape of a solid of revolution, a stationary condensing surface coaxial with the vaporizing surface, and at least one displaceable member bearing resiliently against the vaporizing surface for distributing and rapidly renewing as a film, distilland introduced thereon. Distilland is introduced through conduit 58 on th the electrically-heated inside wall of cylinder 6 which is evacuated by pumps connected to conduits 18 and 20.  The distilland is immediately spread into a thin film over the wall, both above and below the feed level, by brushes 38 which touch the wall and are connected to a rotating frame formed of eight rods 36 and two spiders 26 and 34. The vapours formed are condensed on surface 40; and the condensate flows into gutter 54 and is withdrawn from the still through pipe 56. Undistilled residue collects in gutters 8 and 10 and is withdrawn through conduits 60 and 62.  Wiper blades may be used in place of brushes to distribute and renew the film.
Patent GB-226271-A (GB)
Title: Improvements in water cooling towers
IPC: F28C1/00
Filed: 1923-09-17
Abstract: 226,271. Greene, C. E., and Badger & Sons Co., E. B. Sept. 17, 1923. Cooling - towers.- Water is cooled by spraying it in an upward direction from groups of nozzles at different levels in the interior of a tower supplied with air through horizontal or upwardly inclined conical flues a at the sides of the base of the tower. The flow of air through the flues is induced by spraying-nozzles 19 supplied with the water to be cooled by branch pipes w, v from the inlet pipe e. The flues are supported by the wall of the tower proper, which may be of metal, wood, or concrete, and by an outer wall d, and are sufficient in number and size to provide an entrance for air at least equal to the cross section of the tower. The rising water pipe f is fitted with valves 16, 17 between the groups of nozzles. Gutters 20, 21 round the sides of the tower collect water thereon and return it through pipes 22, 23 to spray-nozzles 24, 25, near the base, whereby the incoming cold air first meets water already partly cooled. The water may be collected in a concrete tank x, and a valve 18 is provided on the inlet pipe whereby the water may be directed into the tank without passing it through the sprayers. The water for the flue nozzles, or all the water, may be passed through a strainer such as the vessel y.
Patent GB-820140-A (GB)
Title: Improvements in or relating to the isomerization of alkanes
IPC: C07C5/27
Filed: 1957-07-23
Abstract: Normal alkanes containing 4 to 6 carbon atoms are isomerized at 800-900 DEG  F. and 200-500 p.s.i.g. at a WHSV of 2 to 20 in the presence of 1-5 mols. of hydrogen per mol. of alkane in contact with a platinum metal or alumina catalyst characterized by large pore, high area base structure essentially composed of gammaalumina modifications resulting from drying and calcining a mixture of precursor hydrous alumina phases containing 65% to 95% of trihydrate, said catalyst having 0.1 to 1% of the platinum metal which should exhibit, by X-ray diffraction, the substantial absence of crystals and crystallites larger than 50  , said catalyst having after calcining an area of 350-550 square metres per gram.  The platinum metal may be rhodium, ruthenium, palladium, osmium or iridium but is preferably platinum; such catalysts are described in Specification 735,390, [Group III]. The reaction conditions are preferably such that at least 30% of the alkane feed is isomerized at at least 60% conversion.  The feed may be a refinery mixture but preferably contains at least 80 mol. % of a C4-C6 normal alkane or mixture thereof. The hydrogen used may be a refinery gas containing at least 75 mol. % hydrogen with light hydrocarbons.  The catalyst may be in a fixed, moving or fluidized bed using batch or continuous operation. Unchanged n-alkane may be separated by fractionation or selective adsorption on a sodium or calcium alumino-silicate and recycled. Reference has been directed by the Comptroller to Specification 735,390.
Patent GB-1196368-A (GB)
Title: Sulphur Dyestuffs and a Process for their Preparation
Inventor: RAZAVI DJAVAD
IPC: C09B49/00
Filed: 1968-05-16
Abstract: 1,196,368. Preparation of sulphur dyes. UGINE KUHLMANN. 16 May, 1968 [17 May, 1967], No. 23356/68. Heading C4P. Sulphur dyes are prepared by treating a phthalocyanine dye free from amino groups, a dioxazine dye, an anthraquinone derivative, or a substituted or unsubstituted polycyclio aromatic hydrocarbon in solution or suspension in sulphur chloride with chlorosulphonic acid at 90-200‹ C. The dyes obtained are useful for dyeing cellulose.