baber/WOPTO huggingface dataset:
Patent GB-558296-A (GB)
Title: Improvements in or relating to the manufacture of solid bases for cellulose derivative lacquers and enamels
IPC: C09D101/18
Filed: 1942-06-26
Abstract: 558,296. Cellulose derivative compositions. LYNE, R. R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 26, 1942, No. 8781. [Class 2 (ii)] A solid composition, which may be used in the production of aqueous emulsion coating compositions or coating compositions containing only organic solvents, comprises a gelatinized cellulose derivative in continuous phase and a water-soluble salt of a polyvinyl ester of a polybasic carboxylic acid dissolved in the continuous phase. The carboxylic acid of which the ester-salt is a derivative may be aromatic or aliphatic. The ester-salt may also contain ester groups derived from a monocarboxylic acid. It may be a salt of sodium, potassium, ammonium, or mono-, di-, tri-, or tetra-methyl ammonium hydroxide. The ester-salt may be derived from a polyvinyl phthalate or acetate-phthalate containing free carboxyl groups, polyvinyl acetate-citrate, polyvinyl acetate-maleate, polyvinyl acetatetartrate, or similar esters of acidic character derived from adipic, sebacic, oxalic, glutaric, or succinic acid. The polyvinyl ester-salt in the form of a water-swollen gel may be mixed with the cellulose derivative, a plasticizer and a volatile solvent, the water that exudes as the cellulose derivative becomes gelatinized being removed. The rest of the water is evaporated during the working of the material on hot rollers. The thermoplastic product solidifies as it cools. The solid base material obtained may be broken up into small pieces or chips. Lacquers or enamels may be obtained by dissolving the chips in organic solvent media. Aqueous emulsion lacquers are obtained by first dissolving in an organic solvent medium, preferably containing a high boiling water miscible constituent as well as a water-immiscible liquid, and then working water into the mixture until the water has been dispersed, if desired, with reversal of dispersed and continuous phases. The polyvinyl ester-salt acts as an emulsifying agent. In an example, waterwet nitrocotton, dibutyl phthalate, sodium polyvinyl acetate-phthalate in water swollen gel state, ethyl acetate, and toluene are mixed to form a stiff plastic mass. Water separates and is removed. The plastic is pressed through heated calender rolls and the thin sheet so formed is dried and then broken into chips. The chips are dissolved with gum dammar in butyl alcohol, butyl acetate, toluene, and ethoxyethyl alcohol mixture. Water is added and mixing is continued till an oil-in-water type of emulsion is obtained. Pigments may be incorporated with the cellulose derivative plastic mass. Examples describe the incorporation of yellow chrome pigment, and a pigment comprising titanium oxide and antimony oxide.
Patent GB-231876-A (GB)
IPC: B61C5/00
Filed: 1925-04-02
Abstract: 231,876. Hurlimann, H. April 2, 1924, [Convention date]. Railway motor cars; motors, mounting; radiators, arrangement and disposition of, and mounting and supporting; cooling radiators, air blast for; fuel containers.-Comprises a motor railway vehicle in which the internal-combustion engine, which is situated below the vehicle body, is carried by a frame which can slide transversely on the main frame so that the engine is readily accessible and can be easily removed from the vehicle. The engine d, fuel tank g, two radiators e and their fans f are carried by a frame b, c sliding transversely of the vehicle on an underframe r. The engine may be moved to one side without detaching any parts, and may be completely removed by disconnecting the driving shaft k, the exhaust fittings, and the driver's controls. A tool locker is provided. The Specification as open to inspection under Sect. 01 (3) (a) comprises also a modification in which the engine is near one end of the vehicle and may be movable, longitudinally, and the invention was stated to be applied to road vehicles. This subject-matter does not appear in the Specification as accepted.
Patent GB-899164-A (GB)
Title: Improvements in or relating to brazing or the like
IPC: B23K35/00
Filed: 1961-03-10
Abstract: 899,164. Powder metallurgy. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 10, 1961 [March 14, 1960], No. 8869/61. Class 82(1). [Also in Group XXII] A porous body of refractory metal is impregnated with a metal which does not alloy with it, the impregnated body is brazed to a support and the impregnating metal is subsequently removed. In making a cathode a porous sintered tungsten body 4 is obtained by sintering powder at 2400‹C. up to a density between 60% and 90% e.g. 83% and the body is impregnated with copper and then soldered in a recess in a tantalum tube 1. After soldering the copper is expelled in vacuo at 1750‹C. and the body is impregnated with aluminate. The impregnating metal may be silver or gold and the body may be a cathode body of tungsten-molybdenum alloy or rhenium or other body of molybdenum, hafnium or niobium.
Patent GB-216497-A (GB)
IPC: F41F3/10
Filed: 1924-04-08
Abstract: 216,497. Krupp Akt.-Ges. Germaniawerft, F. May 25. 1923, [Convention date]. Launching torpedoes.-A torpedo F is ejected from a tube A of uniform diameter throughout its length by means of a piston G, which is initially away from the torpedo, the intermediate space being filled with water supplied from a, tank R by a pipe P provided with a valve Q. The piston is driven forwards by compressed air admitted behind it through the rear door B of the tube by a valve E. When the torpedo passes beyond a pawl 0, this falls in against a pin m<1> on a lever M and stops the piston G ; at the same time the lever M is deflected and, by means of linkwork L, K, opens a valve H allowing the compressed air to escape from the tube A into the ship. The distance between the piston and the tail of the torpedo should be long enough to prevent the piston coming in contact with the tail while the intervening water partially leaks out during the discharge of the torpedo.
Patent GB-287536-A (GB)
Title: Improvements in compasses for aircraft, for naval use and the like
IPC: G01C17/38
Filed: 1928-03-23
Abstract: 287,536. Morel, A. M. C., and Soc. des Etablissements Krauss. March 23, 1927, [Convention date]. Mariners' compasses. - Comprises means for correcting mariners' &c. compasses for semicircular and quadrantal errors. The compass shown is of the liquid type comprising a card 3 supported by an inverted pivot 2 in a liquidcontaining chamber 7. The correctors for semicircular error comprise two barrels 26 rotatably mounted in cylinders 27 having their axes at right-angles to each other, the axis of one of the cylinders being parallel to the longitudinal axis of the ship &c. Each barrel carries two similar, but oppositely disposed, magnets or magnet systems 29, 29<1>. Each barrel can be rotated by a head 31 and is held in its adjusted position by a ring 34 slidably mounted in the cylinder 27, and caused to bear on the barrel by screwing on the cover 35. The corrector for quadrantal error comprises two parallel soft iron strips 37, 37<1> mounted below the compass magnets and disposed symmetrically with respect to the axis of the pivot 2.
Patent GB-1372935-A (GB)
Title: High intensity vapour arc lamp
IPC: H01J61/56
Filed: 1973-02-23
Abstract: 1372935 Metal-vapour lamps GENERAL ELECTRIC CO 23 Feb 1973 [1 March 1972 13 March 1972] 8948/73 Heading H1D A vacuum-jacketed, high-intensity, vapourarc lamp is provided with current leads which, within the vacuum space, are modified to provide an arc gap and, upon occurrence of an arc, to deform and close the gap under the heat of the arc. Arcing may occur upon application of high starting voltages if the vacuum is lost, and the effect of the short-circuit is to prevent damage to fittings, etc. which would occur should the arc not be extinguished. As shown in Fig. 2, leads 6, 7 enter vacuum envelope 2 through press 5 and are attached inside the envelope to conductive supporting members (not shown) extending to either extremity of the discharge tube. Immediately below the press an iron or nickel wire 41 is attached to the lead 7 and extends in a loop 42 around the lead 6 thus defining a point of minimum separation between the leads where arcing is initiated. The loop is spaced from the lead by a sleeve 44 of lead glass. When the arcing occurs, both the loop and the sleeve melt, the loop is fused to the lead 6 and the supply short-circuited before the arc becomes destructive. A further sleeve 45 of glass prevents arcing between the lead 6 and the stem of the loop. In the modification shown in Fig. 4, the same effect is secured with a double loop 47, 48 of nickel or iron wire. A second arcing fuse, provided in the base of the lamp to prevent destructive arcing in this region, is made by looping external lead 6a around external lead 7a and exhaust tube 38. A sleeve 46 of lead glass prevents contact between the conductors and melts upon being touched by the arc. The conductors are made of nickel-plated copper wires stranded about a solid nickel core. A further modification is described (Figs. 5-7, not shown) in which one of the internal leads carries a bimetallic strip whose extremity forms an arc gap with the other lead and carries a small lead of brazing metal. When the strip is heated by an arc, the gap closes and the brazing metal is fused to the adjacent lead.
Patent GB-1174801-A (GB)
Title: Improvements in or relating to Coal Getting and Power Loading Machines
IPC: E21C35/20
Filed: 1967-02-24
Abstract: 1,174,801. Mineral-mining machines. HOUILLERES DU BASSIN DU NORDET DU PASDE-CALAIS. 24 Feb., 1967 [22 March, 1966], No. 8964/67. Heading E1F. A rotary, preferably conically shaped, boring head 3 mounted at one end of a mineral-mining machine is formed by cutter armed, coaxially disposed elements of revolution that are rotated at such speeds that all the bits of the head move at. substantially the same linear speed so causing even wearing of the cutters of the machine which also has a loading drum 5 and a clearing plough 18. Disc cutters are provided on the machine for cleaning up both the floor and the roof of a face as the machine is moved along the face.
Patent GB-718399-A (GB)
Title: Improvements in or relating to television and like pick-up tubes
Inventor: BANKS GEORGE BALDWIN
IPC: H01J31/26
Filed: 1952-04-09
Abstract: 718,399. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO., Ltd. Jan. 2, 1953 [April 9, 1952], No. 9115/52. Class 39(1) A television pick-up tube comprises a photocathode for receiving the optical image of a picture to be televised, a target structure including a thin sheet of high resistance material carrying a photo-sensitive mosaic on one side and a condudtive mesh closely spaced from the mosaic, means for directing electrons from the photocathode to the high resistance sheet to land on it with low or zero velocity and produce a charge image corresponding to the optical image on the photo-cathode, and a collector electrode on the side of the target remote from the photo-cathode for collecting electrons emitted from the mosaic in accordance with the charge image when the mosaic is scanned by a flying spot of light. In the embodiment shown in Fig 3 the image to be televised is focused on to a photo-cathode 2 the emission from which is accelerated towards the mosaic by electrodes 6 and 7 and focused by a coil 10. Electrode 6 may be at a potential of 100 volts and electrode 7, which is provided with a mesh 8, at a potential of 500 volts; the electrons reach the mosaic with a very low velocity and charge the high resistance support negative. The high resistance support may be of glass and transmits the negative charge to the photo-sensitive mosaic elements 4 on the other side. The mosaic elements 4 are scanned by a light spot, e.g. from a cathode ray tube 11, to restore this potential to that of the mesh 5, which is at zero potential or a few volts positive or negative. The electrons emitted from the mosaic 4 under the influence of the flying light spot pass to secondary-emitting electrodes 15 and thence to an output electrode 9. In a modification, Fig 1 (not shown), the secondary-emitting electrodes 15 are omitted and the electrons pass direct to a ring-shaped output electrode which has the same diameter as electrodes 6 and 7.
Patent GB-1098362-A (GB)
Title: A method of joining together two panels
Inventor: MOLIN CHARLES
IPC: B64C3/00
Filed: 1965-03-03
Abstract: 1,098,362. Welding by pressure; making cellular panels. NORD-AVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. March 3, 1965 [March 25, 1964], No. 9173/65. Headings B3A and B3R. In a method of joining together panels having corrugated cores one panel has the terminal corrugation 14 arranged with extended crests 15 to receive the terminal corrugation 10 of the other panel. Facing sheets are spot welded to the crests of the corrugations but the crests of corrugations 14, 10, 11 and, if required 12, are spot welded when the panels are pushed together and the joint made. In this manner the corrugation 10 is spot welded to the corrugation 14 and the core is joined for load carrying as well as the facing sheets. The corrugation 14 is set in between the facing sheets so that the said sheets overlap the facing sheets of the other panel. In a modification, the overlap can be replaced by a separate added strip. Mandrels are passed through the corrugation to prevent flattening by the pressure of the welding operation. The panels may consist of two rows of corrugations, as shown, or one row and may have facing sheets on one or both sides. The panels may be rectangular or trapezoidal and may be curved in one or both directions. The edge of the overlapping facing sheet can be made flush by mechanically rolling.
Patent GB-181157-A (GB)
Title: Improvements in and relating to cap nuts
IPC: F16B37/14
Filed: 1921-03-24
Abstract: 181,157. Morison, D. B. March 24, 1921. Addition to 170,780. Hubs.-In a cap nut of the type referred to in the parent Specification, the cap 4 has a thin covering member 5 of another metal &c. applied as a veneer, which is united to the other portion of the nut at the same time as the cap.
Patent GB-433028-A (GB)
Title: Improvements in the exhausting systems of internal combustion engines
IPC: F02B35/02
Filed: 1935-03-26
Abstract: 433,028. Pumps. IRWIN, H., 30, The Grove, Benton, Northumberland, and IRWIN, F., The Riding, Heatherside, Camberley, Surrey. March 26, 1935, No. 9364. [Class 7 (ii)] A fan D, rotated from the engine flywheel, or other external source, by a shaft E, draws exhaust gas through a byepass C, F, external to the main exhaust system B, and thus assists in exhausting the engine cylinders. Alternatively the return connection F may be omitted the fan D then delivering the gas direct to the atmosphere or to a separate silencer.
Patent GB-127969-A (GB)
Title: Improvements in Stethoscopes and like Hearing Appliances.
Inventor: HENDRY ALEXANDER WILLIAM
IPC: A61B7/02
Filed: 1918-06-07
Abstract: 127,969. Hendry, A. W., and Hendry, E. J. June 7, 1918. Stethoscopes. - A stethoscope of the type provided with a diaphragm, and in which there is simultaneous direct transmission of sound waves and diaphragm conduction through the material of the sound-collecting horn, such as those described in Specifications 18722/96 and 25686/11, comprises a metallic sound-box a, a xylonite or like diaphragm b, and a collecting-horn d mounted in the centre of the diaphragm so as leave a passage c therethrough. Extraneous sounds are excluded by a muffling-plate e covering the diaphragm, but not in contact with it or with the horn. The plate e may be supplemented by a rubber washer e'. Flexible ear-tubes are connected to a Y-piece f communicating with the sound-box. The instrument may be used as a sound-collector with the horn merely exposed to the sound waves and not in contact with an object, as when sounding a patient.
Patent GB-1219079-A (GB)
Title: Electro-magnetically operated clutches
Inventor: DAVIDSON JOHN BRUCE
IPC: F16D27/115
Filed: 1967-02-28
Abstract: 1,219,079. Friction clutches; positive clutches. COVENTRY GAUGE & TOOL CO. Ltd. 26 Feb., 1968 [28 Feb., 1967], No. 9422/67. Heading F2C. To minimize magnetic flux losses in an electro - magnetically engaged clutch in which friction discs 2a, 2b, or positively engaging dogs (not shown), clutch a hub 1 to a spider 5, a stationary electromagnetic coil assembly 6, 7 is carried by a non-magnetic element 9 having a sleeved extension 9a serving to screen the coil assembly 6, 7 from the hub 1 and a journal bearing 10 arranged therebetween. On energizing the coil 6, the magnetic flux follows the path "F" to compress the clutch pack 2 between an axially attracted armature 4 and a fixed core 12, the latter being mounted on the hub 1 by a flange portion 12b which may additionally be of non- magnetic material to form a further screen. To accommodate uneven wear of the clutch discs, radial pins 13a in the fixed core 12 engage clearance slots in an outer pole 13, permitting limited axial float of the pole 13 on a non- magnetic bush 14, or small area spokes, fast with the core 12. Circlips 17 retain the complete clutch assembly on the hub 1. The clutch discs 2a, 2b may be of dished or waveform, or alternatively have springs interposed therebetween, to separate the clutch discs on disengagement.
Patent GB-121913-A (GB)
Title: Improvements in or relating to Overhead or Elevated Cable Rail Tramways or the like.
Inventor: ROGERS STEWART ALEXANDER
IPC: B61B12/06
Filed: 1918-06-10
Abstract: 121,913. Rogers, S. A. June 10, 1918. Elevated-railway engines. - A cable rail elevated tramway &c. having trolly wagons of the pannier type has a motor trolly driven by an internal-combustion or other engine and con. nected by driving gearing to the trolly wagons of the train so that the wheels of all the wagons can be driven and braked. The motor trolly c, Fig. 1, has a pair of grooved driving wheels a driven by gearing from the engine e. Each wagon trolly t has a pair of grooved supporting wheels a', the axle of each wheel carrying a pair of sprocket wheels m, n, as shown in plan in Fig. 6. A sprocket wheel on the rear wheel of the motor trolly is geared by a chain o' to the leading wheel of the first wagon trolly and similar chains connect together the axles of each trolly and the proximate wheels of adjacent trollies thus forming a connexion transmitting the driving effort and also the braking effort, when the motor trolly is braked, to all the wagon trolly wheels. Rigid coupling-bars r connect adjacent trollies to maintain the trollies at 'the required distance apart.
Patent GB-865669-A (GB)
Title: Asphaltic bitumen composition
IPC: C08L95/00
Filed: 1959-03-19
Abstract: Moulded articles are made from a well-graded mineral aggregate mixed with asphaltic bitumen, the latter having a penetration index not above +5 and a softening point V (ring and ball) and penetration p (100g. 5 sec., 25 DEG C.) satisfying the formula V = 90 + 30 log p \sB 15.  The aggregate and the bitumen may be mixed at 200-250 DEG C. and compacted under pressure in a mould to produce hollow articles such as pipes or solid moulded articles such as bricks, sheets and sleepers.  The aggregate may comprise 30-60% stone, 25-50% sand and 4-25% filler to which 5-8% bitumen is added.
Patent GB-258183-A (GB)
Title: Pyjama trousers
IPC: A41F9/02
Filed: 1926-04-12
Abstract: 258,183. Harsh, G. M. April 12. 1926. Pyjamas. - Pyjama. trousers are constructed with an elastic waistband so arranged that, when contracted. the garment is slightly gathered without being pleated. In the form shown in Figs. 1, 3, and 4. the waist band 4 is of tubular form and consists of elastic mesh fabric which contains a strip of rubber 5 secured thereto by lines of stitching 13 of stout thread arranged as a series of Vs or Us, the limbs 41 and connecting members 42 being formed as single stitches. In applying the band, this is stretched to the same length as the top of the garment and the two sewn together, thus producing, in the contracted condition, the gathered effect shown in Fig. 1. The garment is provided with a fly 9 and the waist band is provided with meeting ends 10 fastened by a button. In a modification, Fig. 7, the strip of rubber is omitted and the elastic web fabric may contain threads of rubber, the ends of the bands being provided with reinforcing tubes which are sewn along the front edge 30 and the top and bottom edges 35 only. The button is sewn right through the band and reinforcement, and the buttonhole similarly formed.
Patent GB-1379988-A (GB)
Title: Amplitude control circuits
IPC: H03G1/00
Filed: 1972-03-01
Abstract: 1379988 Automatic gain control SONY CORP 1 March 1972 [4 March 1971] 9588/72 Heading H4R A circuit for controlling the amplitude of a signal on a transmission path without affecting its D.C. level includes a transistor whose emitter and collector are connected to the poles of a power supply through substantially equal resistors and are interconnected by a plurality of PN junctions connected in series, a connection point between two of the plurality of PN junctions being connected to the transmission path. The amplitude of the signal is controlled by a control signal applied to the base of the transistor, which control signal may be derived from the signal on the transmission path. The Figure shows an automatic gain control circuit for controlling the gain of an amplifier 34 connected in a transmission path 31 to 35. A transistor 41 has its base connected to a rectifier circuit 39 constituted by diode 37 and capacitor 38 which produce at the base of transistor 41 a control signal derived from the output of amplifier 34. The emitter of transistor 41 is connected to the base of an NPN transistor 42 and the collector of transistor 41 is connected to the base of a PNP transistor 43, the transistors 42 and 43 being arranged as emitter followers. Interconnecting the emitters of transistors 42 and 43 are a pair of serially connected PN diodes 54, 55 whose common connection point is connected to the transmission path on the input side of amplifier 34. When signal is applied to the base of transistor 41, the transistor is arranged to be saturated. As resistors 48, 47 are substantially equal in value the voltage at the emitter and collector of transistor 41 is equal to half the power supply voltage V applied to terminal 40, i.e. ¢V volts, the voltage drop across transistor 41 in its saturation state being substantially zero. The voltages at points 50 and 51 are then respectively ¢V - V BE  and ¢V + V BE  where V BE  represents the base emitter voltage of transistors 42, 43, and hence the diodes 54, 55 are biased off. The potential at point 56 is therefore ¢V. If a signal is applied to transistor 41 to reduce the current therethrough, diodes 54, 55 are forward biased and part of the signal at the input to amplifier 34 is shunted to earth. However, the D.C. level on the line at the input to amplifier 34 is kept constant at ¢V. The series connection of PN junctions connected between emitter and collector of transistor 41 is constituted by the base emitter PN junction of transistor 42, PN diode 54, PN diode 55, and the PN emitter base junction of transistor 43. Functionally equivalent arrangements of the serially connected junctions between the emitter and collector of transistor 41 are described with respect to Figs. 1-9. These arrangements involve the use of diodes or transistors or FET's. The circuit 49 shown within dotted lines in the Figure may be made in integrated form. Specification 1,164,380 is referred to.