baber/WOPTO huggingface dataset:
Patent GB-447676-A (GB)
Title: Improvements in or relating to tin boxes intended to be vacuumised, or like containers
IPC: B65D81/20
Filed: 1934-09-22
Abstract: 447,676. Hinges for tins. BARLOW, R., 28, Kingsway, London, and COWAN, A. F., 48, Barnfield Avenue, Shirley, Surrey. Sept. 22, 1934, No. 27301. [Class 65 (ii)] [See also Group XVII] A box &c. which is intended to be vacuumized has a curled or beaded edge 2 with an integral extension 3 which engages loosely the hinge member 5 on the lid. The extension of the curl or bead 2 may be bent upwardly and the lid may be provided with a flange &c. which drops into the bent up extension through a slot, which is sufficiently large to give a vertical displacement to the lid. The lid may have internal projections which engage under the bead on the body portion in the closed position. The box, &c. may be made of material sold under the Registered Trade Mark " Bakelite ". Specifications 365,757 and 420,452, [both in Group XVII], are referred to.
Patent GB-228860-A (GB)
Title: Improved hull construction of submarine vessels
IPC: B63B3/13
Filed: 1924-11-15
Abstract: 228,860. Electric Boat Co., (Assignees of Grieshaber, H. E.). Feb. 7, 1924, [Convention date]. Plating.-In order to eliminate the employment of steam straps or liners over the joints of the shell plates of submarines part or the whole of the hull is plated with two or more layers 3, 4, of relativelv thin plates so disposed that the joints 5, 6 of the abutting plates are staggered both longitudinally and transversely. The combined thickness of the layers is substantially equal to the thickness of such a plate as would be required if only a single layer were used.
Patent GB-304619-A (GB)
Title: Improvements in or relating to heat regulating and controlling devices
IPC: A01K41/02
Filed: 1927-12-15
Abstract: 304,619. Godfrey, E. L., and Wrentmore, G. W. Oct. 15, 1927. Thermostats.-The temperature in an incubator or other device is regulated by a heat sensitive device adapted to control the air or gas and also to control an electric heater where such is incorporated. A heat sensitive device a in the incubator chamber actuates a rod c pivoted at d and carrying a flue damper f. An electric or combustion heater is placed in the chamber i, products of combustion escaping through passages j, k. The rod c co-operates with a finger l, Fig. 3, adjustably mounted on an arm m pivoted at n. The opposite end of the arm m engages a tappet o on a boss p which is rigid with a balanced lever q carrying contacts s, t, u, which dip into mercury cups. These contacts control heating resistances in parallel. In a modified switch, Fig. 6, contacts x are carried by a-balanced pivoted arm z carrying a pinion which engages with a toothed rack on a lever 3 which is actuated by the rod c. In the event of derangement of the switch mechanism, the rod c is still free to control the damper. The mercury cups may be of the non- spillable type. The heating resistance may be tapped and connected to the switch so that when closed the main heater is in circuit, but when the contact is opened, a second element is connected in series. A series of heating elements may be associated with a series of switches. An electric lamp may be employed as a visual indication of the operation of the electric control, and may also function as a series resistance. The heating resistance may be controlled by a hand-operated rheostat. Condensers may be employed to prevent arcing. specification 284 ,373 [Class 5 (ii), Housing &c. animals], is referred to.
Patent GB-975682-A (GB)
Title: Improvements in and relating to metal-clad electric switchgear
Inventor: DAKIN ERIC MCEWAN
IPC: H02B11/20
Filed: 1962-07-17
Abstract: 975,682. Switchgear structures. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 12, 1963 [July 17, 1962], No. 27419/62. Heading H2B. A switchgear structure includes an earthing switch 11 capable of closing on to a live line and of carrying for a limited period the shortcircuit current so produced, the switch including an actuating device with an energy storing spring 14 which is compressed during an initial movement of a controlling handle 13 and then released to close the switch. The switchgear also includes a circuit breaker 8, vertically withdrawable for isolation and selection of duplicate bus-bars 1, 3, and a current transformer 6.
Patent GB-813249-A (GB)
Title: Improvements in rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1957-01-16
Abstract: 813,249. Thermal regenerators. GENERAL MOTORS CORPORATION. Jan. 16, 1957 [Jan. 16, 1956], No. 27465/58. Divided out of 813,248. Class 64(1) In a thermal regenerator for heat exchange between two gases at differing pressures and comprising a drum-type heat-storing matrix rotor 11, a seal is provided in an opening 75 in a diaphragm 12 separating the two gas streams, the seal comprising a rectangular frame 77 through which the rotor passes, the frame 77 being moveable in the opening 75 in a direction radially of the rotor, and a flexible member 106 surrounding the seal 'frame and fitting into slots 108, 107 in the diaphragm and seal frame so as to close the gap between these members whilst permitting radial movement of the seal' frame, the frame being preferably provided with rollers 110 urged by springs 114 against the periphery (e.g. a track 32) of the matrix. The rollers 110 and springs 114 are said to locate the seal thereby preventing binding or dragging. In the form shown the inner shoe 82 of the seal frame is slidably mounted so that it may expand freely with respect to the outer shoe 78 of the frame. Sealing segments 86, e.g. of graphite, are secured to the shoes 78, 82 and are spaced slightly from the heat transfer material 28 of the rotor, whilst the rotor end edges 27 are slidably engaged by sealing blocks 92, 93, the block 93 being spring urged into contact with one rotor end face hence urging the other rotor end face against the sealing block 92. Air cooled trunnion bearings 94, 96 on the seal frame 77 are movable in radial slots 97, 98 provided in structural members of the diaphragm 12, whereby the frame is rockable on the trunnion about an axis parallel with that of the matrix rotor and at the same time is slidable radially of the rotor. Arcuate rim seals extending around the periphery of the matrix end faces between the diaphragm seals, are shown in Fig. 3 and comprise sealing segments 153 e.g. of graphite, urged by springs 154 against the edges of the matrix drum. Specifications 813,247 [Group XII] and 813,250 are referred to.
Patent GB-472450-A (GB)
Title: An improved iron alloy for casting purposes
IPC: C22C37/10
Filed: 1936-10-10
Abstract: An iron alloy for casting contains 3,5 per cent of carbon, 2 per cent of silicon, 0,5 per cent of copper, 0,05 per cent of sulphur, 0,5 per cent of manganese, 0,2 per cent of phosphorus, 0,5 per cent of chromium, and 2,5 per cent of nickel, or within 5 per cent of these proportions, the combined proportions of copper and silicon being maintained at 2,5 per cent.  In making the alloy, the various constituents may be used in elemental form where practicable.
Patent GB-629672-A (GB)
Title: A track section for use in a remote-controlled model or toy electric railway system
IPC: A63H19/30
Filed: 1946-12-20
Abstract: 629,672. Railway tracks. CERRI, F. DUSCHER-. Dec. 20, 1946, No. 37583. Convention date, April 30, 1943. [Class 132 (iii)] A track section for use in remotely controlled model or toy electric railways over which at least two trains can be independently operated comprises at least two electrically conducting rails, at least one of which comprises at least two longitudinal conducting strips electrically insulated from each other. The rolling stock employed should have wheels insulated from each other and the flanges should be insulated from the bosses. The bearing surface of the rail should be curved so that the boss only makes contact. As shown the sleeper a bears rails b, c (or if desired a third rail d in addition). The rails are divided into insulating (shaded) and conducting strips. Thus with the arrangement shown in. Fig. 1, three trains can be controlled, and with that shown in Fig. 8, eight trains. Special pick-up devices are employed to bear against the longitudinal conducting strips. Fig. 13 shows an arrangement for operating trains, the current diagram being shown in Fig. 14. The motor of the locomotive (denoted by a square) receives current from the central conductor bar of rail b via the wheel boss f, the axle e and chassis h and returns it via the pick-up device 1 bearing against the side longitudinal strip of rail b. The other locomotives II, III, IV and V return current as shown via the devices 2, 3, 4 and 5. If desired, an overhead conductor may be used in addition.
Patent GB-1166856-A (GB)
Title: Walking or Exercising Aids for Children
Inventor: PERRIS PETER DEREK
IPC: A47D13/04
Filed: 1966-06-21
Abstract: 1,166,856. Exercising aid for children. P. D. PERRIS. 19 Sept., 1967 [21 June, 1966], No. 27663/66. Heading A6M. An exercising aid for children consists of a rigid support arm having a radial portion 7A arranged to be supported at its outer end upon the ground by one or more wheels 10 and having a vertical portion 6 rotatably mounted on a rod-like or tubular vertical axle 4 secured to a stationary support base 1, and having the top end of the axle threaded to secure a retaining wing nut. The radial portion 7A acts as a hand grip at a suitable height for a standing child or may be provided  with a seat or sling to support the child with his feet on the ground, in which case 7A may take a bifurcated form, each leg bearing a wheel. A spring 12 may be provided between the base, at 3, and bottom of the tube, 6 to restrict rotation. Alternative forms of base are given. Movement of model figures or sounds may be produced by utilising the rotational motion.
Patent GB-932712-A (GB)
Title: Improvements in the preparation and in the preservation of anhydrous hydrazine
IPC: C01B21/16
Filed: 1959-08-13
Abstract: Anhydrous hydrazine is prepared and preserved by contacting hydrazine with a dehydrating agent, followed by distillation of the resulting mixture to isolate the anhydrous hydrazine, both operations being effected in the presence solely of a liquid unsaturated aromatic hydrocarbon.  Aromatic hydrocarbons referred to are benzene, toluene and xylene and mixtures thereof. Dehydrating agents may be caustic soda, potash, quick lime or barium oxide.  The minimum amount of hydrocarbon employed may be calculated from a consideration of the vapour pressure curves of the respective hydrocarbon and hydrazine. An example refers to the production of anhydrous hydrazine by dehydration of hydrazine hydrate containing 63% hydrazine with quick lime in the presence of benzene and, after agitation of the mixture for one hour, distillation of the benzene and anhydrous hydrazine at 78 DEG -79 DEG C. for the major part of the distillation and finally at 92 DEG -96 DEG C. to effect maximum recovery of benzene. Specification 756,545 is referred to.
Patent GB-987825-A (GB)
Title: Improvements in and relating to damp-proof courses in walls and the like
IPC: E04B1/62
Filed: 1963-07-12
Abstract: 987,825. Damp-proof courses. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. July 12, 1963 [July 20, 1962], No. 27695/63. Heading E1V. A wall or like construction has a dampproof course above ground level comprising a film of synthetic organic thermoplastic material. The film may be opaque. Its thickness ranges from 0À003 to 0À025 inch. Preferred materials used are polythene and polyvinyl chloride.
Patent GB-731512-A (GB)
Title: Process for preparing iron powder of improved electromagnetic and mechanical properties
IPC: H01F1/24
Filed: 1953-10-08
Abstract: The process of improving the electromagnetic properties of carbonyl iron powder comprises subjecting pulverulent iron, obtained by the thermal decomposition of iron pentacarbonyl, to a milling treatment in a ball mill running at approximately one-half critical speed, with ratios of milling bodies to iron powder of from 1 : 1 to 6 : 1 by weight, in the presence of a metallic silicate such as Al, Ba, Ca, Cu, Mg, Mn, Ni, Sr, Zn and ferrous silicate in the proportion of 0.1 to 0.5 per cent based on the weight of the iron powder, and an atmosphere of nitrogen, for from 1-10 hours to induce the attachment of silicate particles to the surface of the iron particles.  The treated powder is reduced with hydrogen, containing less than 0.9 per cent impurities, at 450-650 DEG  C. for 5-20 hours.  U.S.A. Specifications 1,759,659 and 2,508,705 are referred to.
Patent GB-1037426-A (GB)
Title: Improvements in or relating to magnetic sealing strips for containers
IPC: F25D23/08
Filed: 1963-07-12
Abstract: 1,037,426. Permanent magnets. M. BAERMANN. July 12, 1963 [Sept. 8, 1962; Oct. 4, 1962], No. 27764/63. Heading H1P. [Also in Division E 1 ] A single- or double-channelled permanent strip magnet employed with a resilient sealing strip for sealing, e.g. refrigerators, is composed of a thermoplastics material or rubber incorporating a powdered permanent-magnetic material, e.g. a ferrite of barium, strontium or lead. The strip may have L- (as shown), or T-sectioned flanges, and may be magnetized with poles of alternate polarity running perpendicular to the strip axis (as shown), in which case the flanges 6 are made thick, or with the poles running parallel to the strip axis (Figs. 3, 5, not shown), in which case the web 7 is made thick. The strip is given a coating of a coloured, vulcanizable paint by spraying or dipping.
Patent GB-1516322-A (GB)
Title: Video disc and method of playback
IPC: H04N5/76
Filed: 1975-07-01
Abstract: 1516322 Automatic speed and position control THOMSON-BRANDT 1 July 1975 [2 July 1974] 27766/75 Heading G3R [Also in Division H4]  A video disc (e.g. optical disc) playback system comprises a source 40 of reference signals, which signals are compared (i) with the output of tachometer 15 for regulating the speed of rotation of the disc, and (ii) with a pilot signal picked up from the disc for detecting timing errors in the reproduced video signal. These timing errors are corrected by coils 24b which shift the reading beam tangentially along the track. Frequency detector 55 detects frequency errors in the pilot signal and feeds a "course" correction signal to coils 24b. Position errors of the reading beam perpendicular to the track are detected at 30 and used to generate position correcting signals for coils 24a to centralize the beam in the track.
Patent GB-635858-A (GB)
Title: Improvements in or relating to saw-tooth wave generators
IPC: H03K4/26
Filed: 1947-10-16
Abstract: 635,858. Saw-tooth generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WHITAKER, L. W. Oct. 16, 1947, No. 27775. [Class 40 (vi)] In a free-running saw-tooth current generator the output of a normally non-conductive triggering valve 26 is coupled to an output valve 1, a differentiating circuit 23, 27 being connected between the output of valve 1 and the input of the triggering valve. When a capacitor 31 associated with the triggering valve has discharged sufficiently the valve conducts to provide positive feedback round the circuit, terminating the scan and initiating the flyback. A negative feedback path 10, 11 linearises the rise of current through the output transformer and a capacitor 14 may be included in the path to increase the high-frequency feedback and so prevent " ringing " due to the flyback. Capacitor 31 is recharged during the flyback but the triggering valve is maintained conductive until the flyback is complete by the output from the differentiating circuit applied to the grid. Resistor 33 controls the rate of discharge of capacitor 31 and thus the repetition frequency while the anode resistor 36 independently adjusts the amplitude to which the output current rises. A diode 20, 21 maintains a constant mean voltage at the grid of the output valve irrespective of the setting of resistor 36 and a second diode 15, 17 serves to reduce undesired coupling with a synchronizing source which may be connected to its cathode.
Patent GB-729127-A (GB)
Title: Improvements in or relating to cathode-ray tubes and apparatus embodying cathode-raytubes
IPC: H01J31/04
Filed: 1951-11-27
Abstract: 729,127. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 27, 1951 [Nov. 30, 1950], No. 27779/51. Class 39 (1). In a cathode-ray tube of the kind in which a ribbon beam can be deflected into a plurality of stable positions where it is held by current division between two electrodes 4 and 6, the electrons of the beam after being deflected by plates 2 are brought to a plurality of line foci which lie in the plane of the slotted collector 4 and overlap the edges of the slots therein, by means of two aligned grids 3, 5 which are composed of wires lying parallel to the direction of deflection and which are held at or near cathode potential, and then diverge from the line foci to overlap as indicated so that the portion of the beam which passes through the perforated anode 6 gives substantially uniform illumination on the luminescent screen 9. In Fig. 1, the device has deflection plates 2, grid 3 at zero (cathode) or low potential which collects secondaries from slotted screen 4 and, after screen 4, grid 5 at cathode or low potential whose wires are in the shadow of those of grid 3, both sets of wires extending parallel to the direction of deflection. This is followed by multi-apertured output anode 6 the apertures of which are covered by gauze 7 to allow less than 20 par cent, e.g. 8-10 per cent, of the beam current to pass, post-acceleration anode 8, fluorescent screen 9 and a transparent conductive layer 10 of tin oxide between 9 and the tube wall 11 which is connected by spring or other conductor 13 to 8. A mask 12 of photographically blackened celluloid with transparent numerals or other symbols thereon is attached to the tube wall. Grid 3 splits up the beam into a number of strips which are individually focused to line foci 1 in the vicinity of slotted screen 4 and then diverge so as to overlap, so that the image on the fluorescent screen is uniformly bright and free from shadows. Stray and excessively deflected edge electrons are collected by gauze 7. Postacceleration anode 8, whose slots are in register with those in anode 6, collects secondary electrons from screen 9 which tends to go more positive. If tin oxide layer 10 and the screen 9 are sufficiently conductive, anode 8 may be dispensed with. Dimensions and potentials of an example are given. The slots in anode 6 and in post-acceleration anode 8 may be staggered as described in Specification 669,236. The devices are used for counting pulses. Specification 684,552 [Group XL(c)] also is referred to..
Patent GB-362999-A (GB)
Title: Improvements in or relating to variable speed gearing
IPC: F16H47/04
Filed: 1930-09-17
Abstract: 362,999. Hydraulic transmission of power. WRIGHT, F. H., 1; Golders Green Crescent, and LEWIS, E. W., 25, Sutton Court, Chiswick, both in London. Sept. 17, 1930, No. 27783. [Class 69 (ii).] Variable-speed gearing comprises an epicyclic train controlled by a variable hydraulic gear consisting of a rotary fluid pump and a like engine the capacity of either of which can be varied. Aligned driving and driven shafts 2, 3, Fig. 1, are secured to internal gears 7, 9 forming the end elements of the epicyclic train. Interengaging planets 8 are supported in a cage 10, which is the controlled element and is connected by a sleeve 6 to the rotor 4a of the engine 4. The rotor 5a of the pump 5 is secured to the shaft 2. Each rotor preferably consists of a cylinder eccentrically supported and slotted radially for the reception of three laminated vanes 4c, 5c slotted so as to be guided upon circular ribs 4d, 5d formed on the end walls of the casings. The pump and engine are connected by outward and return passages 12, 12a, Fig. 2, in a freely revoluble connecting casing. The engine 4 is preferably of fixed and the pump 5 of variable capacity. The capacity of the pump is varied by radially displacing the outer cylinder 5b. This is done by turning an eccentric 18 which is connected by a spindle 17, Fig. 1, to a pinion 16 meshing with a helix 15 slidable on a feather on shaft 2. Axial displacement of the helix 15 effected by a lever 19 thus varies the speed of the cage 10 and so varies the speed of the driven shaft 3.
Patent GB-227557-A (GB)
Title: Improvements in the cooling of dynamo-electric machines of the commutator type by fans
IPC: H02K9/06
Filed: 1923-11-05
Abstract: 227,557. British Thomson-Houston Co., Ltd., and Pollock, A. A. Nov. 5, 1923. Armatures and field magnets, cooling; commutators.-The commutator 5 of a dyn moelectric machine is carried from the end retaining ring 3 of the armature core 2, and air enters the machine through the space between the shaft and the commutator. The commutator segments are mounted on a ring 4 and are retained by a shrink-ring 6. The inwardly projecting portions of the segments are arranged at such an angle that their centre of gravity is located under the shrink-ring. The connectors 7 from the armature constitute fan blades which produce a current of air in the direction shown. The tips of the radial legs of the segments may be formed with fan blades to direct a current of air over the working surface of the commutator. In the case of an axial commutator, the additional fan may be mounted on the armature conductors as described in Specifications 107,993 and 214,430.
Patent GB-724049-A (GB)
Title: Improvements relating to metal ground posts
IPC: H01B17/14
Filed: 1952-11-05
Abstract: 724,049. Fencing. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and MACNAMARA, H. J. Nov. 4, 1953. [Nov. 5, 1952] No. 27809/52. Class 45. A metal ground post 1 for supporting electric wire fence is provided above its spiked end with an integral open eye or loop 4 which is covered or encased by an electrical insulator 5. The insulator 5 consists of a rubber or thermoplastic tube sleeved over the eye or loop and it may extend beyond the end of the loop when the loop is at the upper end of the post and be closed by an insulating plug 7. Several loops may be provided on the length of the post if desired. In a modification the insulation may be sprayed or moulded on the loop or loops. The post has a ground engaging spike 3 near its lower end. Specification 700,483 is referred to.
Patent GB-766006-A (GB)
Title: Improvements relating to the mixing of gaseous streams
Inventor: FRASER REGINALD PERCY
IPC: B01F5/04
Filed: 1953-10-09
Abstract: 766,006. Mixing fluids in flow. URQUHART'S (1926), Ltd. Oct. 11, 1954 [Oct. 9, 1953], No. 27851/53. Class 86 [Also in Group XIII] A duct 6 surrounded by a casing 7 is provided with transverse open-ended tubes 8, 8<SP>1</SP>, 9, 9<SP>1</SP> which each have a longitudinal slit or a longitudinal row of holes. Air or gas, with or without water vapour, flows from the space 10 between the duct 6 and its casing 7 through the tubes and their slits or holes into the gas stream in the duct. Thus a stream of combustion gases from a combustion chamber 1 may be mixed with air from the space 10. The tubes may be arranged in rows, and may be transverse to one another from row to row. Each tube may have a single slit as shown, or two slits directed at an angle to the direction of flow in the duct. The slits may widen towards the centre of the duct 6. The tubes exposed to hotter gases may be ceramic, and the others made of steel. The edges of the slits may be lipped. Some relative dimensions are given. Specification 703,914 [Group XII] is referred to.