baber/WOPTO huggingface dataset:
Patent GB-857581-A (GB)
Title: Improvements in or relating to radio navigation apparatus for aircraft, ships or other vehicles
IPC: G01S1/02
Filed: 1957-02-22
Abstract: 857,581. Radio navigation. FERNANDEZ, M. C. Feb. 22, 1957 [April 10, 1956], No. 6125/57. Class 40(7). Radio navigation apparatus for vehicles comprises first and second radio receivers providing respective bearings of beacons (which may be V.H.F. omni-directional ranges) with respect to the vehicle heading, an indicator with a partially translucent map 30, projectors e.g. 77 each producing a luminous spot and straight line rotatable about a vertical axis, manual means 33, 34, 37, 38 for moving the projectors laterally and longitudinally so that the spot positions coincide with the map positions of the beacons, and repeater mechanisms to rotate the projectors by amounts corresponding to the beacon bearings after corrections to compensate for magnetic heading, magnetic variation and map orientation. In an aircraft first radio bearing repeater transmitter 7 output controls its associated motor 9 whose rotor shaft is geared to shaft 65 which controls projector 77 rotation. Magnetic compass repeater transmitter 23 output controls its associated motor 26 to set in magnetic heading correction via gearing 53, 54 to repeater transmitter 7 and transmitter 16 associated with a second radio bearing receiver. Manual corrections for magnetic variation and map orientation are set into the compass repeater transmitter from knob 42. To indicate drift a silhouette of the aircraft on the map from a projector 104 shows aircraft heading.
Patent GB-772152-A (GB)
Title: Roll paper rewinding means for printing business machines
IPC: B41J15/16
Filed: 1955-03-02
Abstract: 772,152. Typewriters. BURROUGHS CORPORATION. March 2, 1955 [April 21, 1954], No. 6188/55. Class 100(4) A paper roll rewinding means for a typewriter or like printing business machine having an intermittently movable paper carriage, comprises a roll R rotated by a unidirectional drive actuated by. weighted member 3369 as it oscillates due to movement of the carriage. The roll R is supported in transv.ersely adjustable moulded mountings 3330 and consists of four rods 3347, to one of which the paper 3301 (and if required a carbon web 3303) is attached. These rods 3347 are mounted on discs 3348 and hubs 3349 attached to a shaft 334 by and adjustable paper edge guides 3350 are slidable on the shaft 3346 which extends beyond the rightward hub 3349 and freely supports a ratchet wheel 3355 which is pressed into frictional driving engagement with the end of the hub 3349 by a spring 3356 adjustably set bv a collar 3357. The ratchet wheel 3355 is unidirectionally driven by a pawl 3358 oscillated by the swinging movements of the weight 3369. A supply roll 3302 is detachably mounted in V-plates 3306, accessible through a hinged carriage cover 3310 which is held in open or closed position by a spring and cam mechanism 3316-3319. Specification 749,181 is referred to.
Patent GB-503359-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H03B9/01
Filed: 1938-02-28
Abstract: 503,359. Electron - oscillators. FARNSWORTH TELEVISION, Inc. Feb. 28, 1938, No. 6213. Convention date, March 22,1937. [Class 39 (i)] In electron multipliers, the cloud of electrons is oscillated against and from a secondary electron emitting cathode, and a part of the cloud is utilized to maintain the oscillation while another part is withdrawn into an equipotential space in an external work circuit. In the construction shown in the Figure, a cylindrical cathode 4, treated to have secondary electron emission on its inner surface, and a concentric anode 5 formed of fine refractory wire 6 wound on supports 7 are mounted in an envelope 1. At one point, preferably midway of its length, the cathode has an opening 9 covered with a screen, and on the other side of the opening, in a lateral extension 11 of the envelope, is disposed the open end of a tubular collecting electrode 10 which is closed at its other end. A resonant circuit 14 is connected between the anode 6 and the earth, and the cathode has a radio frequency earth through the condenser 15. Collecting electrode is maintained at a relatively high potential by a source of potential 16 in series with a resonant circuit 17, thus providing very little coupling between 10 and 6. In a modification, Fig. 3 (not shown), the electrode 10 is fed by the high potential source 16 through a radio frequency choke and a lead which passes into the envelope through the side wall. A tubular conductor is-slipped over the end of the envelope extension 11 and is capacitatively coupled with the electrode 10.
Patent GB-1011705-A (GB)
Title: Apparatus for breaking up and measuring baled hops
IPC: C12C3/00
Filed: 1963-02-15
Abstract: 1,011,705. Shredding apparatus. DOMINION BREWERIES Ltd. Feb. 15, 1963 [Feb. 26, 1962; April 4, 1962], No. 6214/63. Heading B2A. Apparatus for breaking-up and measuring hops comprises a container 1 to receive one or more bales of compressed hops 2, tearing and shredding means 6 at one end of the container and feed means 14, 15 at the other end to thrust the row of bales to the shredder. The shredder, driven by a motor 13, comprises upper and lower shafts 7, 8 having sprockets 9 carrying chains 10 between which are battens 11 having tearing fingers 12. The pusher 14 is moved forward by a motor 26 and quickly retracted by a motor 25, for loading bales through an opening 3, a clutch 28 providing transmission of drive from one motor to the other. A pointer movable with the screw 15 indicates on a scale the quantity of hops in the container. The apparatus may comprise a plurality of containers.
Patent GB-767598-A (GB)
Title: Welding tool manipulator
IPC: B23K9/02
Filed: 1954-03-03
Abstract: 767,598. Welding by fusion. GRAVER TANK & MFG. CO., Inc. March 3, 1954 [Nov. 3, 1953], No. 6254/54. Class 83 (4). In submerged arc welding of vertical seams on upright plates, the welding tool is mounted on a carriage movable on vertical guides forming part of a framework supported by the top of the plates. The framework 29 has wheels 27 running on the top of the plates P1, P2 and at each end a pair of depending legs Y which carry operator's platforms 66 and wheels 26 bearing against the sides of the plates P1, P2. Rigidly secured to the framework 29 are a pair of squaresectioned vertical guides 41 on either or both of which is mounted a carriage 72 which is supported by an endless chain 79 driven by a motor 83. The carriage 72 supports a flux hopper 75, a welding head 74 and a welding shoe 76 which is as described in Specification 756,201 and which presses a refractory strip against the molten flux. In order to maintain pressure between the shoe 76 and the weld seam irrespective of irregularities in the surface of the plates P1, P2 the shoe is near its upper. end pivotally suspended from one arm of an L-shaped bracket 90, the other arm of which carries a horizontal pivot journalled in the carriage 72. The wheels 27 are mounted on eccentrics which can be adjusted by hand wheels 51 so as to make the guides 41 parallel with the seam V to be welded. Clutches 83 are provided in the drives of the carriages 72 so that when two carriages are used to simultaneously weld the opposite sides of the same seam they may be adjusted so that either one shoe leads or both shoes work at the same height.
Patent GB-1060781-A (GB)
Title: Improvements relating to the production of urea
IPC: C07C273/02
Filed: 1964-02-14
Abstract: Urea is prepared by reacting CO with sulphur vapour at 250 DEG -700 DEG  C. for 0.01-20 seconds in the presence of a sulphide of a metal of Group V, VI, VII or VIII of the Periodic Table, cooling the resulting COS, adding NH3, and passing the mixture at 60 DEG -100 DEG C. over a microporous material (such as active alumina, silica gel, pumice or active carbon); with the proviso that when active carbon is used as the microporous material and the COS is produced at 300 DEG -700 DEG  C., the reaction time for the production of the COS is not 1-20 seconds. The urea is produced on the microporous material, together with H2S; the latter may be desorbed with CO-containing gas which is then fed to the COS reactor.  The urea is extracted from the reactor by means of liquid ammonia, or aqueous urea solutions obtained from previous extractions.  More than one urea reactor may be used. The last reactor may be operated at below 40 DEG  C., when residual NH3 is bound as NH4SH, which will react to form urea when another reactor is switched in and the temperature of the previously last reactor is raised.ALSO:Carbonyl sulphide is produced by reacting CO with sulphur vapour at 250-700 DEG  C. for 0.01-20 seconds in the presence of a sulphide of a metal of Group V, VI, VII or VIII of the Periodic Table.
Patent GB-888806-A (GB)
Title: Improvements in hosiery with run resisting areas
IPC: D04B9/46
Filed: 1959-02-24
Abstract: 888,806. Knitting. BERKSHIRE KNITTING MILLS. Feb. 24, 1959 [April 28, 1958], No. 6368/59. Class 74 (2). An anti-ladder barrier 21 is knitted across the top of the toe of a circularly knitted stocking in line with the seam 20 extending round the bottom of and closing the toe. The barrier is formed by knitting two yarns simultaneously, tuck stitches 38 being formed in alternate wales 36 from one yarn with the held loop extending over at least three courses whilst the other yarn floats, as at 40, Fig. 3. Tuck stitches are then formed in a similar manner in the intervening wales 35. Following this a number of courses are knitted in which tuck stitches 42, having a held loop extending over two courses, are more widely dispersed. Finally, the barrier is completed by knitting tuck stitches in alternate and intervening wales in a similar manner as at the commencement of the barrier. A barrier may also be located in other parts of the stocking where it is desired to prevent laddering. Specification 888,807 and U.S.A. Specification 1,969,853 are referred to.
Patent GB-137677-A (GB)
Title: Improvements in and relating to driving sprockets for the tracks of chain-track tractors or the like vehicles
IPC: B62D55/12
Filed: 1919-03-14
Abstract: 137,677. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). March 14, 1919. Chain-wheels; tension arrangements.-A chaintrack driving sprocket for tractors and like vehicles is designed to clear the chain links of dirt and to adjust the chain to the sprocket automatically as the chain wears. The teeth of the sprocket are bevelled at 16, 17, Fig. 6, and recesses 18, 19 are formed between the teeth. Dirt on the chain track is forced by the teeth into the spaces between the links and escapes through openings in the side rails 20 of the track. The contour of the teeth is such that the chain tends to ride up the faces of the teeth as it stretches, and the driving- pressure is thus distributed around the sprocket. With this object, the face of each tooth at the pitch-circle c is inclined to the radius a, Fig. 5, at an angle greater than 20 degrees, and the radius of curvature of the face is equal to four times the length of a chain link.
Patent GB-1025858-A (GB)
Title: Chain stitch device for lock stitch sewing machines
IPC: D05B1/14
Filed: 1965-02-15
Abstract: 1,025,858. Sewing machines. SINGER CO. Feb. 15, 1965 [Feb. 24, 1964], No. 6436/65. Heading D1G. A lock stitch sewing machine comprising a rotary looptaker disposed beneath a work support and journalling a stationary bobbin holder, is converted to chain stitching by the provision of an upwardly-projecting member biased upwardly towards the work support and thereby so positioned above the bottom surface of a threadguiding member provided on the work support as to retain a cast-off loop of thread, and means for lowering the top of the thread-retaining member below the bottom surface of the thread-guiding member to permit a first trapped loop to be pulled off the thread-retaining member by the thread take-up mechanism after a second loop has been passed through the first loop by the endwise reciprocation of the needle. The bobbin normally supported in a bobbin holder 34 journalled in a rotary hook 32, is replaced by a cylindrical member 70 formed in its upper surface with a groove 73, in which is pivoted at 74 a finger 71 carrying at one end an upstanding lug 72. A modified throat plate 52 is provided having an elongated needle-passing slot 81, and formed adjacent the latter with a downwardlyprojecting lip 80. A spring disposed between finger 71 and the base of slot 73 biases lug 72 upwards against the under surface of the throat plate closely adjacent lip 80. An initial loop 90 cast off the looptaker beak 33 is thereby retained on lug 72 until the needle descends therethrough and beak 33 draws a succeeding loop 93 through the trapped loop 90. The feed dog 49 then descends and a web 50 rigid therewith engages finger 71 to depress lug 72 below lip 80 for releasing loop 90, whereby the latter is set into the work by the action of the normal take-up means.
Patent GB-1412377-A (GB)
Title: Oxazolo- 5,4-d azepines
IPC: C07D491/10
Filed: 1973-02-09
Abstract: 1412377 Oxazoloazepine derivatives DR KARL THOMAE GmbH 9 Feb 1973 [10 Feb 1972] 6476/73 Heading C2C [Also in Division A5] Novel compounds of Formula I: (wherein R represents a hydrogen atom, an alkyl group containing from 1 to 4 carbon atoms substituted by a hydroxy, carboxy or carbalkoxy group; a saturated or unsaturated aliphatic acyl group containing from 1 to 6 carbon atoms optionally substituted by a hydroxyl group; a benzoyl group optionally substituted by one or more methyl or methoxy groups or by one or more halogen atoms; or a pyridinecarbonyl or phenylacyl group) and acid addition salts thereof, are prepared by reacting a compound of Formula II with urea. Intermediates of Formula II are prepared by various methods for example by the following sequence : (i) for R = H, a compound of formula is cyclized and then the N-benzyl compound is debenzylated; (ii) for R = acetyl, the compound R = H is acetylated; (iii) for R = hydroxyalkyl, the ethylene glycol ketal of the compound R = H is reacted with ethylene oxide.
Patent GB-638187-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J19/04
Filed: 1948-03-02
Abstract: 638,187. Typewriters. PAILLARD SOC. ANON. March 2, 1948, No. 6527. Convention date, April 22, 1947. [Class 100 (iv)] In a typewriter, the toothed wheel 13 of an escapement mechanism is journalled in a support 12 removably and rigidly held in position on the typewriter frame 20 by a clamping device applying thrusts situated on opposite sides of a vertical plane passing through the axis of rotation of the toothed wheel and directed obliquely relatively to the plane, non-metallic resilient members 27, 29 being interposed between the support and the framework and between the support and the clamping device so as to avoid any metallic connection between the support and the framework. The support 12 is clamped in position by two flaps 21 hinged at their lower ends by spindles 22 to lugs on the framework 20. The flaps 21 incline inwardly and upwardly and bear on angled surfaces 26 on lower outward extensions of the support so that when the free ends of the flaps are pulled together by tightening the nuts 24 of an interconnecting rod 23, the support 12 is rigidly held in position. A clearing hole 30 is provided through the support 12 for the rod 23 to pass therethrough.
Patent GB-110506-A (GB)
Title: An Improved Device for Securing Pictures or the like against Displacement upon the Walls or other Surfaces from which they are Hung.
Inventor: NATHAN ALFRED JERROLD
IPC: A47G1/22
Filed: 1917-05-09
Abstract: 110,506. Nathan, A. J. May 9, 1917. Hooks fixed to walls and flat surfaces. - Means for supporting pictures on walls comprises a strip of metal c bent into a V-shape at c<2>, the V-portion carrying depending hooks c<3>, and a socket d formed in a strip d<1>, which is bent to form a projection of W shape. The two strips are secured by nails &c. to the wall and picture and are engaged by the insertion of the projection c<2> in the centre cavity of the socket d the hooks c<3> entering the outer limbs of the socket. The socket d may be closed at its lower end by a plate d<2>. The device may be employed both at the top and bottom of a picture.
Patent GB-555858-A (GB)
Title: Manner of new manufacture of rubber substitute
IPC: C08L95/00
Filed: 1942-05-15
Abstract: 555,858. Plastic compositions. BROWN, S. N. May 15, 1942, No. 6604. [Classes 22 and 70] A rubber substitute is made by mixing 20 per cent. of asphalt which may include tar or pitch, 20 per cent. of gelatine or glue, 23 of water, and lesser amounts of mineral oil, boiled linseed oil, tung oil, oleic acid, sulphonated castor oil, phenol, copal resin, gum thus, hard paraffin, vegetable gelatine, methylene oxide, zinc chloride, chloride of lime, chrome alum, and inert materials, e.g. wood meal, calcium carbonate, and silicious material. Acetic or formic acid is added to bring the pH value to 5 to 6. The mixture may be moulded or used with laminated material, and heated up to 90‹C., and may be vulcanized.
Patent GB-379710-A (GB)
Title: Process for the emulsification of bituminous and like substances, especially for theproduction of road-surfaces
IPC: C08L95/00
Filed: 1931-03-03
Abstract: Comparatively unstable aqueous emulsions of bitumen and the like, employed particularly for road surfacing, are prepared by introducing the material, heated to a temperature considerably above the boiling-point of water, say, 130-160 DEG  C., and preferably in fine streams, into the water or aqueous emulsifying agent, at a speed predetermined as that required to produce spontaneous dispersion, without the necessity of stirring, by the action of the steam produced.  A coagulating agent such as acid petroleum pitch may be added to the materials before dispersion, or such an agent, or inorganic salts, may be added for the same purpose to the prepared emulsion.  Mixtures of tar with 15-23 per cent of natural asphalt may be emulsified as above, although tar itself, or mixtures outside the stated proportions are stated to produce reversed emulsions. Mixtures of up to 15 parts of natural bitumen with up to 85 parts of tar-petroleum-pitch mixtures containing at least 15 parts of tar are stated, when treated according to the invention, to produce stable jelly-like emulsions which revert to mobile form on stirring. Examples of the invention are as follows: (1) 100 kgs. of bitumen, which may contain about 0,7 per cent of fats, fatty or naphthenic acids or solvents, are heated to 140 DEG  C. and added to 100 kgs. of water, at 95-100 DEG  C. and containing if desired 0,3 per cent of alkali, the addition taking \ba1/2\be-8 minutes as predetermined; (2) the bitumen in (1) may contain 0,7 per cent of acid pitch as coagulant; (3) the bitumen of (1) may be replaced by 78 kgs. of tar, 4 kgs. of petroleum pitch and 17 kgs. of natural asphalt, and 1 kg. of soap may be added; (4) a jelly-like emulsion is prepared as in (1) from 60 kgs. of natural bitumen, 30 kgs. of petroleum pitch and 20 kgs. of tar; (5) to an emulsion made as in (1) and comprising 50 parts of Trinidad asphalt, 30 parts petroleum pitch and 20 parts of tar, up to 0,5 per cent of solid common salt is added as coagulant while hot and immediately before use on the road.
Patent GB-644369-A (GB)
Title: Improvements in glow discharge tubes and the manufacture thereof
IPC: H01J17/00
Filed: 1947-03-10
Abstract: 644,369. Discharge apparatus. PHILIPS LAMPS, Ltd. March 10, 1947, No. 6630. Convention date, April 22, 1944. [Class 39 (i)] The operating voltage of a gas-filled glow discharge tube for use as a circuit element, for example in testing-circuits or for stabilizing voltage, is rendered substantially constant by making the cathode 1, Fig. 1, at least at its surface, of a metal having a melting point of more than 1400‹ C., and by coating the wall 3 of the tube, or an insulating wall surrounding the discharge path, with a visible layer of the same metal, or of another metal having a melting point above 1400‹ C. A visible layer is defined as a layer which, if formed on a glass wall, would absorb at least 20 per cent of transmitted light. Use of Ti or Hf tends to make the price of the tube prohibitive and more suitable metals ar Zr, Ta, Cr, Mo, W, Fe or Ni, with molybdenum probably the most suitable. The coating may be produced by heating the metal in the form of a wire or plate, or by cathode disintegration of the metal, or of the cathode itself, if the coating is to consist of the same metal as the cathode, or the cathode may comprise two metals, one of which acts as the cathode while it is being disintegrated, after which the other metal acts as the cathode. The cathode may be a disc with two ta s, as shown developed in Fig. 2, or in an alternative construction is a cylinder surrounding a rod anode. The dead spaces 4 and 5 may be eliminated to avoid the difficulty of coating these parts, and the wall of the tube is then substantially equidistant from the cathode throughout, thus, acquiring a uniform coating. Alternatively, the coating may be produced on a separate internal cylinder of quartz surrounding the discharge path, and the tube wall left clear. In manufacturing a tube, the glass parts are first degassed by heating in a furnace at about 400‹ C., and the metal parts degassed as thoroughly as possible, for instance by high frequency heating. The tube is then filled with gas and a glow discharge struck by means of a small current, which is gradually increased until the cathode is heated to white incandescence, whereupon the gas is pumped away and the tube filled with a fresh quantity of pure gas, for example neon at 20 to 40 mm., or argon at 5 to 20 mm. pressure. After sealing off the tube, the disintegration process is repeated, and continued .until the required coating of metal has been obtained.
Patent GB-1103444-A (GB)
Title: Improvements in continuous casting techniques
IPC: B22D11/128
Filed: 1965-02-16
Abstract: 1,103,444. Continuous casting process. MANNESMANN A.G. 16 Feb., 1965 [20 Feb., 1964], No. 6709/65. Heading B3F. In a curved strand continuous casting process the end of the liquid core is normally situated in the horizontal run, and the lowering velocity is reduced shortly before the termination of the casting process so that the liquid core tip is displaced backwardly to a point above the horizontal run, to prevent run-out of molten metal from the strand head at the end of the casting.
Patent GB-699005-A (GB)
Title: Improvements in hand guards
IPC: A47G21/02
Filed: 1952-03-14
Abstract: 699,005. Guards for use with hand forks &c. KOZAK, O. J. C. March 14, 1952, No- 6724/52. Classes 30 and 128 A guard for use by a person using a carving knife and fork, or working on an article with a sharp-edged implement, comprises a thimble part to be fitted on the. finger and having an upwardly projecting part to intercept the knife. As shown, the thimble part 1 is moulded from a synthetic plastic and resiliently fits the finger, being internally grooved at 3, to prevent rotation, and slotted at 2 to allow the finger to press directly on the fork. The vertical edge 6 of the upstanding part 5 and downward projections 7 intercept the knife blade.