baber/WOPTO huggingface dataset:
Patent GB-1129332-A (GB)
Title: A method of and apparatus for treating metal melts such as steel melts at varying pressures
IPC: C21C7/00
Filed: 1965-08-02
Abstract: 1,129,332. Casting ingots ; continuous casting. STAHLWERKE SUDWESTFALEN A.G. 2 Aug., 1965 [17 Aug., 1964], No. 33025/65. Heading B3F. [Also in Division C7] Molten metal after treatment with gas under pressure (e.g. austenitic steel treated with nitrogen) passes under the same pressure from a ladle 3 to ingot moulds 71, 72, in a pressure chamber 60. A valve 66 is closed after pouring and the metal solidifies under pressure. In a modification, Fig. 2 (not shown), the ladle 3 passes on a wheeled carriage from a treatment chamber into a pouring chamber in which the carriage and ladle are raised to immerse the end of a subtended gate pipe to several ingot moulds supported on a partition in the upper part of the pouring chamber. Reduction of pressure in the upper part causes the pressure in the lower part to fill the moulds. In continuous casting. Fig. 4 (not shown), the metal after pressure-treatment in a chamber passes to a compartment of the chamber in which it is poured under pressure via a tundish into a mould sealed in the chamber wall. The gap between strand and mould is sealed by outflowing gas. If the cooling is insufficient to create a strand skin to withstand the gas pressure, a pressure jacket extends around the secondary cooling zone and terminates at a gap where the strand is solid, sealed by outflowing gas.
Patent GB-754918-A (GB)
Title: Improvements in machines for weighing and packing powdered or granular materials
Inventor: JENSEN EILER
IPC: B65B37/02
Filed: 1954-11-15
Abstract: 754,918. Pneumatic conveyers. SMIDTH & CO. AKTIESELSKAB, F. L. Nov. 15, 1954, No. 33046/54. Class 78 (1). A horizontal container 13, which is composed of sections 3, each having a discharge outlet leading to a weighing device 12, is connected to and fed with fluidized material from a silo 1 and has one or more pipes 6 rising from it to maintain uniformity of pressure in it. Compressed air is passed into the material in the silo 1 and sections 3 through porous plates or canvas and the material in the sections may be continuously agitated by devices mounted on a motor-driven shaft 5. Compressed air is supplied also to a perforated pipe 8 disposed within the pipe 6 and wrapped in an air-distributing material, e.g. canvas. The silo may be connected to the middle of the container 3 and a pipe 6 provided at each end, or a single pipe may be provided at the middle and a silo connected to each end.
Patent GB-1416705-A (GB)
Title: Keto-esters
IPC: C07D309/12
Filed: 1972-07-14
Abstract: 1416705 Keto-esters DUNCAN FLOCKHART & CO Ltd 26 June 1973 [14 July 1972] 33070/72 Heading C2C The invention comprises novel compounds (I) or pharmaceutically acceptable acid addition salts thereof, wherein X is an oxygen or sulphur atom, R 1  is (1) a straight or branched chain alkyl group, (2) a cycloalkyl group, (3) an alkenyl group, (4) an alkynyl group, (5) an aralkyl group, (6) an aryl group, (7) a pyridyl group, (8) a group of the formula (9) a group of the formula in which Y is a perhalogenoalkyl, hydroxy, hydroxyalkoxy, hydroxyalkoxyalkoxy, alkoxy, alkoxyalkoxy, acyloxy or alkoxycarbonyl group or Y is a -S-(CH 2 ) n OZ group, in which Z is an acyl group, m and n which may be the same or different, each represent integers of 1 to 3. R 2  is (1) a hydrogen atom, (2) a straight or branched chain alkyl group, optionally substituted by one or more alkoxy or alkoxycarbonyl groups, (3) an alkoxycarbonyl group, (4) a cycloalkyl group, (5) a cycloalkenyl group, (6) an aryl, aralkyl or aralkenyl group in which the aryl portion may optionally be substituted by one or more alkyl, alkoxy, alkoxyalkyl, methylenedioxy, alkoxycarbonyl, perhalogenoalkyl, nitro, halogen, nitrile, aryl, dialkylaminocarbonyl, amino, alkylamino, dialkylamino or aralkoxy groups, (7) a saturated or unsaturated heterocyclic ring containing one or more heteroatoms and which ring may be optionally substituted by alkyl, (8) a group of the formula or (9) a group of the formula R 3  is (1) a hydrogen atom, (2) a straight or branched chain alkyl group, which may be substituted with alkoxycarbonyl, carboxyl, amino, alkylamino, dialkylamino, or heterocyclic groups, (3) an alkenyl group which may be substituted with an alkyl carbonyl or alkoxycarbonyl group, (4) an alkynyl group, or (5) an aralkyl group. R 4  is either (1) a straight or branched chain alkyl group, (2) an alkoxyalkyl group, (3) an alkenyl group, or (4) an aralkyl group, R 5  is a hydrogen atom, an alkyl, aryl or alkoxycarbonyl group, and R 6  is a hydrogen atom, or an alkyl or aryl group; with the proviso that when R 1  and R 4  are ethyl groups, and R 3 , R 5  and R 6  are hydrogen atoms then R 2  may not be a methyl group. They are made by standard methods using compounds (IIb) and (IV) (IIb can exist in various tautomeric forms). Pharmaceutical preparations having a CNS depressant effect and anaesthetic and analgesic actions contain (I) as active ingredient; administration is orally or parenterally.
Patent GB-1480863-A (GB)
Title: Pneumatic impact tool
IPC: B25D9/14
Filed: 1975-08-08
Abstract: 1480863 Pneumatic tools ATLAS COPCO AB 8 Aug 1975 [8 Aug 1974] 33148/75 Heading B4C A pneumatic impact tool comprises a differential hammer piston with a head 27 and reduced shank portion 26 which slides in a constricted cylinder portion 30 thus forming a chamber 37, a further chamber 36 being formed between the piston head 27 and the tool 23 and slidable sleeve 18 surrounding it. In use chamber 37 is constantly pressurized from supply 46 and chamber 43. As the piston moves forwards holes 33 in the shank 26 allow pressure air into the shank at 31 and this passes through bore 34 to chamber 36 and an accumulator 42. Due to the differential shape of the piston it is forced backwards until holes 33 in the shank pass constriction 30 and vent the space 36 to atmosphere through outlet 40. The pressure in chamber 37 can again force the piston forwards. A cushioning spring may be provided between sleeve 18 and end cap 17 to absorb vibration. A catch 25 retains the drill steel.
Patent GB-1077585-A (GB)
Title: Improvements relating to switches having movable portions supporting components of resonant circuits
IPC: H03J5/24
Filed: 1964-08-14
Abstract: 1,077,585. Waveband switches. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 14, 1964 [Sept. 11, 1963], No. 33158/64. Heading H3Q. A waveband switch for resonant circuits in receivers (e.g. a turret tuner) has components of the circuit resiliently attached by leaf springs to a movable part of the switch, two switch contacts being rigidly attached to the component. In Fig. 2 a number of alternative inductors (only one shown, 35) are mounted in compartments in a rotating drum 29, the inductors being attached to insulating mountings 31 which in turn are joined to a radial wall 33 of the drum by a leaf spring 32. Contact 27 is also mounted on the insulator 31 and engages a fixed contact 24. The drum can be held in the desired position by a detent. A cam can be provided (Fig. 3, not shown) to increase the pressure between the contacts against the action of the spring. The drum may be divided longitudinally if it is desired to switch several circuits simultaneously. The invention is also applicable to sliding instead of rotating switches.
Patent GB-642170-A (GB)
Title: Improvements in refrigerators or the like
IPC: F25D23/02
Filed: 1947-12-17
Abstract: 642,170. Refrigerators. ELECTROLUX, Ltd. Dec. 17, 1947, No. 33249. Convention date, Dec. 19, 1946. [Class 29] One or more heat reflecting surfaces 20 with air layers between are interposed between the horizontal insulated lid 17 and the storage space of a refrigerator. As shown metal foils spaced by distance pieces 22 are secured by screws 19 to the inner face of the lids which are hinged at 18. In a modification metal sheets are horizontally slidable in guides arranged on the inside walls of the refrigerator beneath the lid. The surfaces may be aluminium sheets or synthetic resin coated on both sides with aluminium foil.
Patent GB-182426-A (GB)
Title: Improvements relating to lubricating pumps with sight feed
IPC: F16N29/00
Filed: 1921-12-10
Abstract: 182,426. Friedmann, A. [Firm of]. June 28, 1921, [Convention date]. Force - feed lubricators.-A lubricating- pump 2 has a sightfeed glass 5 in the suction lead, a portion 6 of which is U- shaped and movable parallel to the axis of the glass. The glass is secured by screwing down the portion 6 by bolts 7 and leakage past the joints 8, 9 is prevented by rings of cork, leather, &c.
Patent GB-840456-A (GB)
Title: Fuel control apparatus for gas turbine engines
IPC: F02C9/16
Filed: 1957-10-24
Abstract: 840,456. Gas turbine  plant. BENDIX AVIATION CORPORATION. Oct. 24, 1957 [Dec. 5, 1956], No. 33282/57. Class 110 (3). [Also in Group XXIX] The pump 30 of a gas-turbine engine fuelsystem is provided with a by pass valve 84 to regulate the pressures in the pump outlet conduit 32, the valve being actuated by a spring loaded diaphragm 80; the chambers 72, 78 on opposite sides of which are connected, respectively, to the conduit 74, leading to a manifold 24 supplying the fuel nozzles, and to the pump outlet conduit 32. A pressure-regulator 40 consisting of a valve closure 94 integral with a spring-urged piston 86 has the opposite sides of the,latter connected across the pump 30 to control the pressure of fluid entering conduits 98 and 130. Conduit 98, which includes a restriction 100, opens to a chamber 102 that houses a piston 104, the position of which is determined by a leak-off valve 106 connected by an arm 108 to an engine-speed responsive member 50 ; a spring 112 is disposed between the arm 108 and the piston 104 whilst a rack 110 is moved by the latter. A pinion 114 co-operates with rack 110 to control the position of an acceleration fuel-flow cam 116, the position of which is also varied by an engine-temperatureresponsive device 58. A second engine-speedresponsive member 118 is connected to another leak-off valve 124 that is further controlled by the throttle lever 39 ; the valve 124 is associated with a spring-loaded piston 134 supplied with fluid from the regulator 40 via a restriction 132, the piston 134 setting the axial position of the closure 140 of a metering valve 142, the rotational position of which is determined by a device 144 responsive to compressor discharge pressure. Fuel flows from the metering valve 142 to the conduit 74 via a restriction 158 with which cooperates a check valve closure 154 having in parallel therewith a second restriction 160 with which is associated a valve closure 162 mechanically linked to the piston 104. A leak-off valve closure 166 controls the flow of fuel from the conduit 32 to a chamber 168 connected to the input of the restriction 160, the valve 166 being operated by a diaphragm 176 responsive to the pressure differences between the fluid in chambers 168 and 178, the latter being connected by a restriction 180 to the conduit 74. The position of the metering valve closure 140 is determined in accordance with engine speed and compressor discharge pressure modified during acceleration by the cam 116; during deceleration the closure 140 is moved by the throttle lever 39 and engine speed to the minimum axial position against a step 141, the compressor discharge pressure then controlling the fuel flow until the latter falls sufficiently to enable closure 154 to shut-off the restriction 158 whereupon the leak-off closure 166 opens when the pressure differential across diaphragm 176 falls below a given value and the fuel flow on deceleration is accordingly modified. The opening of the closure 166 is varied to maintain a constant pressure-drop across the restriction 160 and closure 162.
Patent GB-1279453-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K9/173
Filed: 1969-07-02
Abstract: 1279453 Welding by fusion UNION CARBIDE CORP 2 July 1969 [12 Sept 1968] 33307/69 Heading B3R A MIG welding torch comprises a wire contact tube 14 which is unthreaded and is held in place by a resilient collet 7. The latter comprises externally coned sections 9 which are radially contracted to grip the contact tube by a locking member L threaded on to the collet. The collet 7 and the locking member L are provided with passages and ports for shielding gas distribution. The collet 7 is soldered, e.g. at 12, to a torch body B which has an insulating, e.g. rubber, sheath 5 and comprises a single or, as shown, separate passages 1, 3 for wire and shielding gas. The locking member L may be injection moulded or, as shown, comprise an outer shell 11, e.g. of stainless or any heat-treatable steel, an insulating member 15, e.g. of a silicone compound, and a body 13 threaded on to the collet 7, the parts 11, 15, 13 being secured together by a pin 20 of insulating material. The outer shell 11 is provided with a plurality of sections 17 to resiliently retain a pushed-in nozzle 19 of copper, ceramic or preferably, for electrical insulation, anodized aluminium.
Patent GB-191927-A (GB)
Title: Improvements in or relating to valves for admitting additional air to the induction pipe of internal combustion engines
IPC: F02D9/00
Filed: 1921-12-12
Abstract: 191,927. Brown, C. A. H. Dec. 12, 1921. Fluid-actuated valves. -Additional air is admitted to the induction pipe of an internal-combustion engine by a spring-loaded suctionactuated ball valve c which is connected to its loading-spring through a swivel or swivels r. The spring may be attached directly to the swivel and to an adjustable screw p as shown, or may be arranged on the outside of the, casing a and bear against an adjustable nut on a rod passing through the top of the casing and attached to the swivel. The ball is made of indiarubber, and is guided by pins d. A perforated shutter g controls the air inlet holes f in the casing.
Patent GB-521413-A (GB)
Title: Improvements in or relating to multi-stage radial flow elastic fluid turbines
IPC: F01D5/04
Filed: 1938-11-17
Abstract: 521,413. Steam turbines. TENNANT, W. J. (Aktiebolaget Ljungstroms Angturbin). Nov. 17, 1938, No. 33482. [Class 110 (iii)] In a multi-stage radial-flow turbine the inlet edges of the blades of one or more of the blade rings A, B, working in the lowest pressure are so shaped that the ratio of the distance between the centres of gravity 30 of the cross-sectional areas of the ring-bonds 23, 24, to the length of the outlet edges of the blades is equal to or less than 1.25.
Patent GB-374372-A (GB)
Title: Improvements in or relating to automobile signal switches
IPC: H01H21/10
Filed: 1931-12-03
Abstract: 374,372. Controlling motor vehicles. CONDON, E. T., 42, Park Avenue, New York, U.S.A. Dec. 3, 1931, No. 33527. Convention date, March 24. [Class 79 (v).] A switch for operating direction indicating lights &c. on a road vehicle, is adapted to be mounted over the free end of the gear shift lever, or is integral with a knob at the end of the lever, so that a driver can operate switch and gears simultaneously. According to the former construction, a metal sleeve 15 carrying adjacent rotatable and fixed insulating rings 26, 21, is mounted on the upper end of the gear lever, by means of a threaded interchangeable collar 17, whereby the switch can be mounted on a lever of any standard size. The ring 21 carries three spring-pressed balls 30 which are bridged by conducting segments 27, 29 (not shown), carried by the ring 26 according to the movement of an outwardly projecting rod 12 adapted to be operated by the extended fingers of the driver. In the latter construction, the knob is hollow and divided into rotatable upper and fixed lower sections 37, 35, which carry respectively the bridging segments 50, and an insulating block 38 in which the spring-pressed balls 40 are mounted.
Patent GB-956875-A (GB)
Title: Process for preparing elastomeric polymers
IPC: C08F210/00
Filed: 1961-09-19
Abstract: Copolymers of ethylene and an aliphatic alphaolefin are made by copolymerizing the monomers in the presence of a catalyst prepared from vanadium triacetylacetonate, vanadyl diacetyl-acetone, a vanadyl trialkoxide, or a vanadyl halogen-alkoxide, i.e. VO(OR)2X or VOORX2, in which R is an alkyl group and X is halogen atom, a dialkyl aluminium monohalide, and an ether or thioether containing at least one branched alkyl group or an aromatic nucleus, a tertiary amine, or a trisubstituted phosphine containing at least one aromatic nucleus. The complex-forming compound may be anisole, diisopropyl, diisoamyl, diphenyl, or dibenzl ether, diphenyl sulphide, diisopropyl sulphide, triphenyl phosphine, or diphenyl methyl, triphenyl, tribenzyl, or methyl phenyl benzyl amine. The alpha-olefin may be propylene or butene. The catalyst may be formed by mixing the ingredients in any order, but preferably it is formed by mixing the complex forming compound with the alkyl aluminium halide in a solvent and adding the mixture to the vanadium compound. The catalyst is generally "aged". The polymerization may be effected in a continuous manner. The polymerizate may be fractionated by solvent extraction. The molecular weight of the copolymers may be regulated by addition of small amounts of hydrogen or zinc dialkyls to the monomers. The copolymers may be recovered and purified by conventional techniques. Specifications 856,733, 856,736 and 856,737 are referred to.
Patent GB-428089-A (GB)
Title: Improvements in or relating to vapour electric converters
IPC: H01J13/20
Filed: 1933-11-30
Abstract: 428,089. Metallic-vapour converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birming- ham. Nov. 30, 1933, No. 33596. [Class 39 (i)] In a vapour-electric converter the anode is surrounded by a plurality of perforate screens at least one of which, preferably an inner screen, serves as a control electrode, and baffle means are provided not encircling said anode for deflecting the vapour blast from the cathode away from the anode region. The anode 1, Fig. 1, is surrounded by three mesh screens 2, 3, 4, secured to an imperforate hood 7 which prevents entry of condensed vapour between the screens and the anode. The control grid 3 is insulated from the hood 7 by the tube 13, supporting the terminal 14. More than one control grid may be employed, and the screens may be of perforate sheet metal or graphite or of expanded metal. In the complete steel-tank converter, Fig. 3, a baffle 15 is provided to deflect the cathode blast away from the anode region, while allowing free access of the arc to all sides of the anodes 1.
Patent GB-336953-A (GB)
Abstract: 336,953. British Thomson-Houston Co., Ltd., (Victor X-Ray Corporation). July 18, 1929. R÷ntgen-ray apparatus.-Apparatus for stereoscopic work comprises power-driven means for moving the tube from one position to another with an automatic declutching of the drive and brake application at the end of the pre-set movement, so as to obtain a steady and smooth movement. As shown, the tube 14, Fig. 1, and power-drive (e.g. an electric motor 41) are carried by a block 40 on a counterbalanced sleeve 11, which is fitted with anti-friction rollers 12 and moves on a vertical pillar 10. The movement is obtained by a pinion 55, Fig. 2, which is driven by a retractable spring clutch 48, 49, Fig. 6, and engages a graduated rack bar 33 mounted at one end on a collar 27 which is adjustable on the tube 10. The bar 33 carries an adjustable declutching arm 36, and its lower end, which extends through bearings 56 on the block 40, has a pin limiting the movement relatively to the block 40. The lower end of the bar also carries an insulated finger 59 which closes the normally-separated contacts 60, 61, on the block 40 when the apparatus is preliminarily set. An electromagnetic trigger 64 for effecting the position change of the sensitive plate carrier 19 is arranged in series with the contacts 60, 61, and in parallel with the motor 41. For operating, the film carrier 19 is centered relatively to the patient, the distance from a reference point (e.g. the ground) being indicated by a scale 70 and pointer 71. The sleeve 11 is set for the first exposure by a scale 72 on the tube 10 and a sliding link 73 on the sleeve 11. The rack bar 33 is adjusted and clamped by the collar 27 in intial position, thereby closing the contacts 60, 61. The arm 36 is set by the scale on the side of the bar 33 for the required tube shift. On starting the motor by the hand switch 62 after the first exposure, the plate shift mechanism is actuated by the electromagnet trigger 64, this circuit however being immediately broken by the separation of the contacts 60, 61 as the sleeve 11 rises. At the end of the pre-set shift, the arm 36 engages a lever 52 which is pivoted on the block 40 and has a fork extension 54 operating to slide a washer 65, Fig. 6, to declutch the plates 48, 49 and apply a friction brake 65, 66 to stop the tube movement.
Patent GB-497509-A (GB)
Title: Improvements in or relating to aircraft landing flaps and control surfaces
IPC: B64C13/00
Filed: 1937-12-06
Abstract: 497,509. Controlling aircraft. DORNIER-WERKE GES., and DORNIER, C. Dec. 6, 1937, No. 33704. Convention date, Dec. 5, 1936. [Class 4] Aircraft landing-flaps and control surfaces which are articulated behind a fixed wing or plane and form, with the wing, in their normal position a continuous profile include two or more parts, rotatable about a common axis and actuated in such manner that the part lying forward of the axis remains wholly or substantially within the wing contour. As shown, an elevator comprises parts 2, 4. The part 2 is carried by an axle 3 to which the part 4 is articulated and is adjusted on rotation of a shaft 8 by a worm 9 and worm wheel 10. A bevel pinion on the shaft 8 meshes with a similar pinion 12 on a shaft 13 mounted in a bracket 16. The pinion 12 is movable axially on the shaft 13 against the action of a spring 15 and a worm on the shaft 14 meshes with the worm wheel 10. Deflection of the part 2 due to modification in the air-flow causes a load on the part 4 which through the worm 14 and worm wheel relieves the load on the main control. In a further form, not illustrated, the worm 14 may be replaced by a device having a one-way action and including a spring-loaded pawl under the control of the pilot, a brake being provided to prevent too rapid return of the control surface.
Patent GB-287825-A (GB)
Title: Improvements relating to vehicle wheels
IPC: B60B25/20
Filed: 1927-12-14
Abstract: 287,825. Luebbert, J., and Curran, H. M. Dec. 14, 1927. Tyre attachments to rims; detachable-rim attachments to wheels.-In a detachable rim device locking-means of the turnbutton type are used for connecting the two parts of the rim together, the same means being operable to secure. the complete rim to the wheel. The rim-parts 12, 13 are formed with meeting pairs of lugs 16 having open slots 17 through which keepers 21 are passed, with the lug 22 at the forward end of each keeper 21 in alignment with the mouth of the slot. A flange 26 on the keeper is adapted to abut the side face of the rim-part 12, in which position the keeper is turned to bring the head 22 out of alignment with the slot 17, The rim parts 12, 13 are thus held against separation, the keeper being locked in this operative position by a spring- pressed detent 28 engaging a notch 27 in the edge of the flange 26. The rim is mounted on the wheel by passing the lugs 16 into transverse slots in the felloe 10 until the flanges 26 on the keepers 21 abut against the side face of the felloe. In this position, the rim-part 13 bears against a flange, 11 on the felloe,. The keepers 21 are then turned to bring the lugs 22 into the position shown in Fig. 5 to secure the rim, the detents 28 engaging notches 34 in the flanges 26. The rim may be further secured by means of lugs 35 on the keepers engaging slots 36 in the felloe.