baber/WOPTO huggingface dataset:
Patent GB-722345-A (GB)
Title: Improvements in or relating to electron gun assemblies for electric discharge devices
Inventor: DUDLEY MICHAEL DUKE
IPC: H01J29/48
Filed: 1952-04-08
Abstract: 722,345. Electron beam apparatus. GENERAL ELECTRIC CO., Ltd. April 8, 1953 [April 8, 1952], No. 8957/52. Class 39 (1). An indirectly heated cathode 1 is mounted between two insulating sheets 3 transversely to the tube axis in a cylindrical housing 4. A modulator substantially in the form of a cylinder 15 fits concentrically inside 4 with an aperture 19 adjacent the emitting surface 2. The sheets 3 are arranged to be parallel chords to the housing 4 and parallel tangents to the cylindrical part of 15 but the diameter of 15 at its lower end is reduced in order to reduce the area of contact with mica sheets 3. A spring 8 is attached to the base 10 of 4 and bears against the ends of sheets 3 which project through slots 7 thus holding them in contact with the flange 18 of the modulator at their upper edge so that the position of the cathode is accurately determined relatively to the modulator. Flange 13 of cylinder 4 is joined to flange 18. These flanges may be used to support the electron gun on ceramic rods in conjunction with mica sheet 22 which is attached by means of tags to the base 10 of 4. Axial movement of the assembly on the rods is prevented by clips welded to the housing. The emissive area 2 of the cathode extends beyond the projected area of the aperture 19 so that the surface of the modulator may be outgassed during pumping by drawing emission current to it; a potential of 50 volts and currents up to 100 ma. are referred to. The cathode cylinder which is preferably of square cross section may have emissive coating also on its lower side, and additional electrodes may be mounted from micas 3 to function as a thermionic valve with this cathode.
Patent GB-1372063-A (GB)
Title: Plug for a valve core
IPC: F16K15/20
Filed: 1971-04-07
Abstract: 1372063 Valves SCOVILL MFG CO 22 March 1972 [7 April 1971] 8994/71 Heading F2V A plug for a valve core of a pneumatic tyre valve comprises an integral annular lip 9 which deforms for sealing contact with a surface 33 of a valve body when the plug is screwed into the body.
Patent GB-720410-A (GB)
Title: Improvements in and relating to apparatus for preventing air pollution by dust and like particles
IPC: B04C5/12
Filed: 1952-04-09
Abstract: 720,410. Centrifugal separators. HALL & KAY, Ltd., HALL, S., and MYERS, A. March 30, 1953 [April 9, 1952], No. 9039/52. Class 23. A dust separator 11 is housed in a chamber 10 having an upper compartment 12 forming a clean gas collector, the compartment having connections to a clean gas return trunk 19 together with controlled outlets 21, 22. Gas to be cleaned from a trunk 18 enters the separator tangentially, dust being collected in a bag 17, and clean gas passing directly to the compartment 12. The outlets 21, 22 are controlled by dampers 23, 24, the arrangement being that when one of them is open the other is closed. The outlet 21 is connected to a trunk 26, and the outlet 22 is provided with a grill. A partition 16 divides the lower part of the chamber into two isolated compartments 13, 14. Holes may be provided in the floor 15 of the compartment 12 to permit clean gas to pass into the compartment 13 before passing through a grill to the ambient air. The trunk connections may be so arranged that the apparatus is portable.
Patent GB-179770-A (GB)
Title: Improvements in flexible couplings for shafts
IPC: F16D3/72
Filed: 1921-03-24
Abstract: 179,770. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. March 24, 1921. Shaft couplings. - A fexible coupling comprises the combination of a torsionally rigid member 6, which allows the shafts 1, 2, to be slightly out of line with their axes parallel, with integral resilient end flanges 7 bolted to flanges on the shafts, and a longitudinal rigid member 8 which transmits end thrust but allows eccentricity of the shafts. More than one of the members 6 may be used bolted end to end. In modifications the bolt or member 8 may be arranged directly between the shafts or may pass through the ends of the flanges, distance pieces being inserted between the flanges.
Patent GB-1065552-A (GB)
Title: Process for the production of acrylonitrile
IPC: B01J23/31
Filed: 1964-03-04
Abstract: Acrylonitrile is prepared by reacting a mixture of at least one butylene, ammonia and oxygen in the gaseous phase and at a temperature of 400 DEG  to 525 DEG  C. in the presence of a catalyst consisting of a mixture of the oxides of bismuth, molybdenum and vanadium having a vanadium content of 0.5 to 3.0% of the weight of the catalyst.  The butylene component may be admixed with propylene, ethylene and paraffins having up to 4 carbon atoms. The reaction may also be conducted in the presence of water vapour.  Acetonitrile is produced as a by-product.  Reference has been directed by the Comptroller to Specification 913,832ALSO:Catalysts for use in acrylonitrile production comprise heteropoly compounds of bismuth, molybdenum and vanadium supported on carriers e.g. Kieselguhr carbrundum.  Reference has been directed by the Comptroller to Specification 913,832.
Patent GB-256661-A (GB)
Title: Furnace wall
IPC: F27D1/00
Filed: 1925-04-07
Abstract: 256,661. Marks, E. C. R.., (Liptak Fire Brick Arch Co.). April 7, 1925. Walls.-In replaceable inner walls comprising belts of brickwork supported by horizontal rows of shelf-forming blocks anchored in a permanent outer wall as shown in Specifications 168,558 and 201,442, clearance is left for independent vertical expansion and contraction of the belts. The outer wall comprises belts of brickwork 8 between horizontal anchoring channels 10 bolted to buckstays 7, there being channel sheets 13 interposed between the anchoring channels 10 and the buckstays, and metal plates 14 bolted to the sheets 13. The shelf-forming blocks 16 have notches 17<a> adapted to engage ribs 11 on the anchoring channels 10 and are kept in place by wedgeshaped key blocks 18 placed between the blocks 16 and the upper flanges of the anchoring channels. Firebrick belts 15 forming the inner wall are supported on the blocks 16 clearance being left between the top row 17 of each belt and the blocks 16 above, with lap joints at 20 to prevent the flame from passing outward. Air ports 25 are formed in the belts 15 whereby air heated in the channels 24 between the two walls is drawn into the furnace. The metal anchoring channels 10 may be protected by bricks 8<a> and 19.
Patent GB-349206-A (GB)
Title: Improvements in or relating to machines for cleaning and polishing floors
IPC: A47L11/08
Filed: 1930-03-24
Abstract: 349,206. Floor cleaning and polishing machine. BURRAGE, A. E., The Vale, Towcester Road, and VACDUS ENGINEERING CO., Ltd., College Street, both in Northampton. March 24, 1930, No. 9356. [Class 138 (i).] In a handoperated appliance wheeled over the floor, the wheels K are geared to a wheel J transmitting motion to a sleeve G secured to the flat portion m<3> of a dome M. Thereby the dome is rotated and with it a brush stock P. Surrounding the dome M is an outer dome A to which a handle is attached. A thrust plate a<1> takes the upward pressure of the brush. The wheels K are rubber tyred. A pair of wheels F, f<1>, which are mounted on the axle C so as to be normally out of contact with the floor, prevent damage to the machine or floor when the machine oscillates as it is propelled. A free-wheel device is provided. The connections between the brush or mop and the inner dome comprise headed pins engaging an annular plate Q by means of bayonet slots, the plate having lips m<2> engaging inclined edges of slots S in the dome. Thereby the pressure of the brush is reduced on the return stroke.
Patent GB-140232-A (GB)
Title: An improved lathe for turning and parting off bolts or the like from bar stock
IPC: B23B5/14
Filed: 1919-04-12
Abstract: 140,232. Coley, R. J., and Riches, F. April 12, 1919. Lathes for turning bolts from bar stock are provided with a hollow spindle and lever fed saddle equipped with work and tool rests and length and diameter stops. Spindle mountings.-Ball bearings are provided at b<1>. Saddles.-A screw c<1> is provided for clamping the saddle in adjusted position. Saddle-feed motions.-A lever p is pivoted to the rear of a block p<2> adjustably clamped to the bed, and is linked to the saddle. Work rests.-The stock is steadied by a closelyfitting bush held in axial alinement with the spindle by screws d' in a projection from the saddle. Slide-rests; cutting off mechanism; tools.-Sliding on the projection is a rest carrying oppositelydisposed tools. The front tool f turns the shank and the underside of the head, and the rear tool h chamfers the head, rounds the end of the shank, and cuts off. Gauging-devices.-Adjustable diameter stops i mounted in the slide-rest contact with the projection. When a stepped bolt is to be turned, either a pivoted abutment plate that can be swung aside, or an additional pivoted screw stop k, is employed. Length stops m<1>, n<1> &c. are mounted in pivoted bars m, n and in a fixed bar o. The stop-bars m, n are swung aside after use.
Patent GB-994828-A (GB)
Title: Improvements in or relating to lubrication systems for a motor compressor
IPC: F04B39/02
Filed: 1962-03-12
Abstract: 994,828. Compressors. M. CLAUSEN, [trading as FIRMA DANFOSS VED. ING M. CLAUSEN]. March 12, 1962 [May 10, 1961], No. 9484/62. Heading FIN. [Also in Division F2] Oil forced by a pump 13, Fig. 1, along an axial bore in the shaft 6 of an electric motor 5 driving a refrigerant compressor 10, 11 and then through an inclined bore 14 of a crank pin 7 is collected by a curved baffle 15, secured to and projecting above a cylindrical housing 9 in which slides a block 8 and is thereafter deflected by the baffle to the adjacent moving parts. The baffle extends through an arc of at least 180 degrees as shown in Fig. 2.
Patent GB-1337517-A (GB)
Title: Multiple effect evaporator
IPC: C02F1/08
Filed: 1972-03-01
Abstract: 1337517 Multiple-effect evaporators; desalination of water ISRAEL DESALINATION ENG (ZARCHIN PROCESS) Ltd 1 March 1972 [5 July 1971] 9492/72 Heading BIB Liquid to be evaporated, e.g. sea water, is introduced through pipe 23 (Fig. 1), manifold 24 and nozzles into a housing 1, and flows down in film form over bundles of horizontal heat exchange tubes 5 arranged as a multipleeffect evaporator, one end of the tubes of each extending through and being sealed in a vertical tube sheet 3, the intermediate portions of the tubes being supported by an openwork grid 9, and the other end of the tubes being provided with constricted gas discharge vents 8a (Fig. 6). Steam is supplied to the tubes of the first effect through inlet 28. The vapour evolved from the solution flowing over the outer surface of each effect flows through the associated grid and the droplet separator panel 10 into the tubes of the next effect, where it condenses. The tubes are preferably slightly inclined to the horizontal. The condensate (desalinated water) flows down to collector 15 (Fig. 5), and then flows through duct 4 and aperture 13b in tube sheet 3, and is withdrawn through outlet 31. Concentrate drips into collector 16, and flows through duct 13 and apertures 13a to outlet 30. Flash evaporation occurs as the condensate and concentrate flows through apertures 13b and 13a respectively; for each effect is maintained at a lower pressure than the preceding effect. The vapours (steam and non-condensable gases) removed from the last effect through outlet 29 may be compressed and used as heating-medium for the first effect. Alternatively the vapours from outlet 29 may be used to preheat the feed solution. The tubes and the tube sheets may be made of aluminium or aluminium alloy.
Patent GB-1396047-A (GB)
Title: Winding machine for producing coil springs
IPC: B21F3/06
Filed: 1973-02-27
Abstract: 1396047 Coiling helices; twistng wire J W G HUHNEN 27 Feb 1973 [28 Feb 1972] 9496/73 Heading B3E A coil spring winding machine has a winding mandrel rotatable about its longitudinal axis and displaceable in an axial direction, to which the free end of a spring wire can be clamped, and the mandrel is also rotatable about an axis at right angles to its longitudinal axis and which cuts the axis of the wire at the point where the wire first contacts the mandrel, and which is disposed parallel to the tangent plane to the mandrel at that point. By this means, the wire of a tension spring may be pre-stressed in torsion. Fig. 1 shows an embodiment, in which a stationary part 62 supports a rotary U-shaped frame 61 on which a threaded spindle 68 is rotatably mounted. The mandrel 67 and a splined sleeve 24 are threadedly supported on the spindle, the sleeve being connected by gear train 69 to a stationary gear 66. The wire 29 is fed by rollers 35 through guide 34 past shear 32, and clamped to the mandrel at 30. When the frame is rotated by motor 63 and gear 64, sleeve 24 is rotated relative to the frame by gear train 69 and the mandrel is screwed up spindle 68. The pitch of the winding can be altered by engaging clutch 70 to cause rotation of the spindle through gears 71. In a modification, Fig. 2 (not shown), the spindle is secured to the mandrel and is rotated by a splined connection to the gear train, moving axially through a nut on the frame. The pitch of the winding may be altered by rotating the nut during winding. Fig. 3 shows another arrangement in which the mandrel 67 is rotatably mounted in the frame 61, and is driven by a splined connection to gearing 111, 112, 113 and stationary gear 114. The mandrel is moved axially by the formation of successive turns of the winding between a collar 133 fixed on the mandrel and rollers 116 held against the latest formed turn, thereby compressing spring 115. Rollers 116 can be moved away by rotation of shaft 120 relative to the frame 61, so that when the wire is severed by shear 32, the completed spring can be ejected by spring 115. The counterweight 136 is forked to permit passage of the ejected spring. Motor 63 drives the feed rollers 35, shear 32, shaft 120, and drives frame 61 through rack 125 and gear 128 containing a drive release device so that during a complete cycle, frame 61 is driven to form the spring, the frame drive is then disengaged, the frame reverses its rotation as the length of wire between the rollers 35 and the mandrel untwists, and the frame is held in datum position by a stop 135 also actuated by motor 63. The shear is operated, and shaft 20 rotated to permit ejection of the formed spring. In a modified version, Fig. 4 (not shown), the mandrel is rotated by a gear fixed to it and having a splined connection to a driving gear, and the rollers 116 are pivoted out of operative position about an axis parallel to that of the mandrel.
Patent GB-526969-A (GB)
Title: Improvements in vaginal pack devices
IPC: A61F13/26
Filed: 1939-03-27
Abstract: 526,969. Vaginal tampons. POPPER. O. March 27, 1939, No. 9530. [Class 81 (ii)] A vaginal pack comprises an elongated pad 2 of absorbent material having an externally smooth enclosure 10 exposing the rear face 6 of the pad for engagement by the finger after insertion of the pack, the enclosure 10 being then withdrawn and being adapted to be split longitudinally by the finger during withdrawal. As shown the enclosure includes a part-cylindrical shell 4 of thin cardboard or the like to the underface of which the edges of a blank 11, Fig. 6, of material, such as that sold under the Registered Trade Mark " Cellophane," enwrapping the pad, are secured. The blank 11 has a V-shaped gap on the anterior side to assist splitting by the finger, and a flap 12 which may be turned down to enclose the pad and is raised automatically during emergence thereof. The shell 4 has inturned lugs 5 to prevent retraction of the pad and in use is grasped by a tail portion 8. The pad has a wedge-shaped front end and is provided with a withdrawal string 23. The shell 4 may be dispensed with, the pad being made sufficiently rigid for unassisted insertion and the envelope having a tape or like tag for grasping during withdrawal. In another modification a cylindrical shell having a longitudinal slot and a bulbous end is provided, the slot being of such width as to be expanded to enlarge the shell on insertion of the finger. Pad and shell have wedge-shaped front ends and the slot and front end of the shell have secured over them a strip of tearable material having weakening lines in its forward portion through which the pad can break. An inturned lug on the edge of the slot prevents retraction of the pad. Specifications 524,581 and 524,582 are referred to.
Patent GB-483185-A (GB)
Title: Process for the conversion of aliphatic hydrocarbons
IPC: C07C5/41
Filed: 1937-04-05
Abstract: Aliphatic hydrocarbons are converted into cyclic, particularly aromatic hydrocarbons by contacting them for periods of 6-50 seconds at temperatures of 400-700 DEG  C. with a granular catalyst comprising a major proportion of a refractory carrier of low catalytic activity supporting a minor proportion of a more active catalyst selected from compounds, particularly oxides, of vanadium, columbium, and tantalum.  The carriers and the conditions of treatment are similar to those of Specification 483,417. Specification 483,192 also is referred to.ALSO:Aliphatic hydrocarbons are converted into cyclic, particularly aromatic hydrocarbons by contacting them for periods of 6-50 seconds at temperatures of 400-700 DEG  C. with a granular catalyst comprising a major proportion of a refractory carrier of low catalytic activity supporting a minor proportion of a more active catalyst selected from compounds, particularly oxides, of vanadium, columbium, and tantalum. The carriers and the conditions of treatment are similar to those described in Specification 483,417.  Specification 483,192 also is referred to.
Patent GB-385939-A (GB)
Title: Process and device for making x-ray photographs of the heart or of organs of the body moving at the same rate
IPC: H05G1/62
Filed: 1931-03-30
Abstract: 385,939. R÷ntgen - ray apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 30, 1931, No. 9645. Convention date, April 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 98 (i).] In X-ray apparatus for photographing the heart or other organs moving at the same rate, the so-called heart currents are stated to be utilized for making the exposures at a predetermined phase of the movement. As described, the X-ray tube 1 is fed by a rectified three-phase alternating current. The object 7 under examination is connected by conductors 8, 9 to a cardiograph 10, which is in turn connected to a relay 11. The relay 11 is electrically connected to the focusing device 12 of the X-ray tube, and, in conjunction with a battery 13, is stated to cause the discharge of the tube at the required time.
Patent GB-1138955-A (GB)
Title: Lubrication system for the meshing teeth of a cylindrical worm and rack gear
IPC: F16N17/06
Filed: 1966-03-04
Abstract: 1,138,955. Lubricating. O. WALDRICH, B. KAPP, E. KAPP, A. BOHM-MENNES, M. WALDRICH, and C. WALDRICH, [trading as WERKZEUGMASCHINENFABRIK ADOLF WALDRICH]. 4 March, 1966 [4 March, 1965], No. 9650/66. Headings F2A and F2Q. A worm and rack with parallel axes has lubricant openings 8a, 9a in opposite flanks of the worm thread, the openings in respective flanks being supplied with lubricant by respective control systems, each control system supplying only those openings in the parts of the thread engaging the rack. In Fig. 1, bores 8 extend to one face of the worm thread and bores 9 to the other. Axial distributing conduits 10 in the worm hub each communicate with an axial row of bores 8. Conduits 11 arranged alternately to conduits 10 communicate with respective rows of bores 9. Radial bore 14, 18 connects each conduit 10, 11 to the inner surface of the hub. Oil is supplied from respective pumps to bores 12, 16 in stationary shaft 13 and passes to respective arcuate recesses 15, 17 facing the rack and thence to those radial bores 14, 18 communicating with the recesses. Thus only bores 8, 9 in the meshing portion of the worm receive lubricant. Alternatively, the arcuate grooves may be formed in a member supplying the worm.
Patent GB-139346-A (GB)
Title: Folding hen coop
IPC: A01K31/00
Filed: 1919-04-16
Abstract: 139,346. Hayward, F. G. April 16, 1919. No Patent granted (Sealing fee not paid). Poultry coops.-The front, back, and sides of a coop are hinged to fold inwardly upon the open bottom-frame, and the roof, with a shelter affixed, can be detached when collapsing the coop. The front A turns upon pivots secured in the sidepieces R, T, and the sides K, F and back H are hinged at different heights so as to lie flat when folded. The roof J is attached by hooks, and carries a shelter P which can be lowered to close the front of the coop. The middle batten M is pivoted at the top and can be turned aside, being held open by contact with the adjacent batten.
Patent GB-979315-A (GB)
Title: Improvements in and relating to flameproof electrical time fuses
IPC: F42B3/16
Filed: 1962-03-15
Abstract: 979,315. Electric blasting fuzes. ZAVODY RIJNOVE REVOLUCE NARODNI PODNIK. March 13, 1962 [March 13, 1961 (2)], No. 9703/62. Heading F3A. Relates to an electric fuze in which a delay is placed between the ignition means 11 and a secondary charge 2, the delay 4 being housed in a sleeve 3 of stepped inner diameter, and a primary charge 6 being housed in the sleeve portion of larger diameter. According to the invention, the sleeve 3 is weakened by an external groove in the vicinity of the step in the bore. Instead of a groove, the narrower bore portion may be reduced in thickness throughout its length. An obturating member 13 may be introduced into the sleeve and is made of heatconducting material such as copper, lead or steel. The member 13 may be spherical, conical or cylindrical and may be wholly within the delay 4 or partly embedded in the primary charge. In the construction of Fig. 8, the step in the bore has a corrugated form, so that on firing the fuze, the ball 13 closes the bore to prevent the escape of hot slag from the burning delay.
Patent GB-984853-A (GB)
Title: New water-insoluble dyestuffs which contain carbamyl groups and processes for their manufacture
IPC: C09B51/00
Filed: 1963-03-12
Abstract: Polyvinyl chloride is coloured by the incorporation of a water-insoluble dye free from sulphonic acid groups but containing at least one -CONH2 group which is bound either directly or through an organic residue to one or two residues of the formula -CONHF in which F is the residue of a coloured organic compound.ALSO:The invention comprises water-insoluble dyes free from sulphonic acid groups but containing at least one -CONH2 group which is bound either directly or through an organic residue to one or two residues of formula -CONHF wherein F is the residue of a coloured organic compound.  The dyes are prepared by processes wherein (a) a coloured organic compound free from sulphonic acid groups and containing at least one acylatable amino group is reacted with the halide of a polycarboxylic acid in such a ratio that the acylation product still contains at least one carboxylic acid halide group and said acylation product is then reacted with ammonia, or (b) a coloured organic amine free from sulphonic acid groups is acylated with a halide of a carboxylic acid of formula HOOC-R-(CONH2)m wherein R is a direct bond or the residue of an aliphatic, aromatic or heterocyclic carboxylic acid and m is 1 or 2, or (c) a dyestuff carboxylic acid or a derivative thereof is condensed with an amine that contains an -NHCO-R-CONH2 residue.  The dyes may be used to colour synthetic fibres, lacquers and plastic materials (see Division C3) and, where they contain an anthraquinone residue, as vat dyes.  In examples the preparation of dyes of the anthraquinone, nitro, azo and quinacridone series is described.