baber/WOPTO huggingface dataset:
Patent GB-370368-A (GB)
Title: Improvements in or relating to shield grid tubes
IPC: H01J19/02
Filed: 1930-10-01
Abstract: 370,368. Thermionic valves. ARCTURUS RADIO TUBE CO., 720, Freling- huysen Avenue, Newark, New Jersey, U.S.A. -(Assignees of Krahl, W. L. ; 73, Orange Road, Montclair, New Jersey, U.S.A.) Oct. 1, 1930, No. 29386. Convention date, Oct. 2, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] The spacing between the anode and the control grid of a screenedgrid valve is greater than the spacing between the control grid and the cathode. The anode 18 is interposed between two shielding grids 22, 23, the outer 22 being close to the anode and the inner 23 close to the control grid 19. The grid 22 may be of wire mesh and the grids 19, 23 of helical wire. The grids 22, 23 are connected together electrically, and the space between them is closed at the top, by a plate 47. The lower end of the grid 23 is closed by a plate 46. The cathode may be a tube 20 heated by a pin filament 21 coated with insulation and tensioned by a spring 33. The cathode lead is supported from the pinch at two points by wires 36, 37. The electrodes are spaced at the upper end by wires in a glass bead 28 and at the lower end by an insulating plug 26.
Patent GB-229394-A (GB)
Title: Improvements in and relating to thermionic valve radio receiving sets
IPC: H01L35/00
Filed: 1923-11-21
Abstract: 229,394. Rickets, W. J. Nov. 21, 1923. Thermionic amplifiers and detectors.-Relates to apparatus of the kind in which current for heating the filaments of thermionic valves is obtained from a thermo-battery the couples of which are heated by a resistance connected to the supply mains. According to the invention, means are provided for controlling automatically the voltage generated by the battery. The mains supplying the current for heating the battery are also made to supply high tension for the valves and to serve as antennae for the reception of signals. Filament heating. The application of the invention to supply mains utilizing alternating current is shown in Fig. 1. Current from the mains 3, 3a is taken by leads 2, 2a, to a resistance 1 which is used to heat a battery of thermocouples 4. An earthed metal plate 5 may be placed between the resistance and the thermocouples to serve as an electrostatic screen for preventing transmission of disturbances from the mains to the valves. A relay or control magnet 6 has its winding connected in parallel with leads from the thermobattery to the filament 12b of the valve. When the voltage generated rises, above a predetermined value, the armature 6c breaks a contact 6e in the lead 2a and cuts off the current from the resistance 1. A spring 6b closes the contact when the voltage falls, and a high non- inductive resistance 6e prevents sparking at the contacts. High tension supply. Anode current may be supplied bv a transformer 7 connected to the mains. The transformer has a split secondary 7c, and also a smaller secondary coil 7b for supplying filament current for a rectifying valve 8. The ends of the secondary 7c are connected to the anodes 'of the valve 8, and the middle tapping 7d is connected to the positive terminal of a filter circuit consisting of condensers 9, 9a, and inductances 10, 10a. When using a direct current supply, the anode current is taken from tappings 1a, 1b, Fig. 2, in the resistance 1. Aerials.-The mains may be used as an aerial, the high frequency oscillations being taken through a variable condenser 16 and a tuning inductance 17 to the earthed plate 5, a condenser 5b being inserted in the earth lead of the plate to prevent the mains from being short circuited. Rejector circuits 21, each consisting of an inductance and a tuning condenser are inserted in the leads 2, 2a, to divert the incoming oscillations through the grid circuit of the valve 14. An audio-frequency choke 22 of high inductance may be inserted in the lead 2a to smooth the anode current.
Patent GB-817182-A (GB)
Title: Therapeutic compositions containing a tetracycline-sodium hexametaphosphate complex
IPC: A61K31/65
Filed: 1957-09-18
Abstract: Therapeutic compositions comprise tetracycline sodium hexametaphosphate complex and at least one additional drug chemically and physiologically compatible therewith.  Many drugs are exemplified and include antihistamines, sulpha drugs, lipotropic agents, central nervous system stimulants, local anaesthetics, analgesics, laxatives, sedatives, vitamins, hormones, antifungal agents, and antibiotics. Many examples of substances within the above classes of drug are given.  The compositions may take the form of powders, tablets, which may be coated and contain medicaments in the coatings, lozenges, capsules, suspensions in oils or water, or in ointments and lotions, and may be administered in suppositories, dental cones or p  bougies. Specifications 796,982, 817,180 and 817,181 are referred to.
Patent GB-310744-A (GB)
Title: Improvements in and relating to ejecting mechanism for machines for making cold-pressed headed bolts
IPC: B21K1/44
Filed: 1928-10-12
Abstract: 310,744. Nagel, K., and Kayser Akt.- Ges., J. G. Oct. 12, 1928. Forging-dies.-To enable long thin bolts headed in a closed die to be ejected therefrom without buckling of the ejector rod, the latter, n, is guided in a central bore t in a stationary guide sleeve q in the part c behind the die a and is actuated by the push rod o through an intermediate rod or greater cross-section having a central part t<1> of round section sliding in the bore t of the guide sleeve and connected by wings v<1> with lateral parts u<1> of round section sliding in other bores u, in the guide sleeve connected by slots v to the central bore t. The ejector rod is held against rotation by wings at its rear end engaging the slots v. The cross-sectional shape of the intermediate rod and passages in the guide sleeve may be varied, Fig. 10 showing a modification provided with flanges u<11> connected to the round central part t<1> by flat portions v<11> and guided by parallel surfaces q<1> on the guide sleeve q.
Patent GB-535862-A (GB)
Title: Improvements in or relating to vapour electric arc converters
IPC: H01J13/32
Filed: 1939-11-06
Abstract: 535,862. Metal vapour converters. GENERAL ELECTRIC CO., Ltd., and GALLIZIA, E. Nov. 6, 1939, No. 29493. [Class 39 (i)] In a mercury vapour electric arc converter the cooling pipe 10 inside the converter is protected by a jacket or sleeve 13 of carbon or graphite ; this may be in one piece or in two half cylinders or made up of a number of rods 8, Fig. 5. A lining of graphite 7 is placed inside the anode sleeve 4. With a vertical cooling pipe or pipes the jacket need only be taken up far enough to prevent the arc striking the metal of the pipe ; this may be copper. Specification 503,531 is referred to.
Patent GB-640909-A (GB)
Title: An improved method of and apparatus for spinning yarns from short staple fibres
IPC: D01H13/30
Filed: 1946-10-03
Abstract: 640,909. Wet-spinning of textile yarns. MOUNT VERNON-WOODBERRY MILLS, Inc. Oct. 3, 1946, No. 29498. [Classes 120(ii) and 120(iii)] Yarn from short staple fibres is spun from rovings wetted with water at the end of the drawing stage but prior to twisting, the twisted yarn being substantially free, upon drying, of any residue left from the wetting. A roller 23, partially immersed in a trough 25 containing water, is pressed by springs 13, connected to the ends of arms 12, against the lower roller 5b of the last pair of rollers of a drawing system, so as to transfer water to the roller 5b, from which it is absorbed by the roving passing over it. The water may contain between 0.5 and 3 per cent of a wetting agent. It is stated that " twist-setting " is effected by this method.
Patent GB-1506410-A (GB)
Title: Fuse strips
IPC: H01H85/10
Filed: 1975-07-15
Abstract: 1506410 Fusible cut-outs BASSANI TICINO SpA 15 July 1975 [16 July 1974] 29654/75 Heading H2G A fuse strip is provided with two rows of polygonal apertures 4 across the strip, the bases 5 of the apertures in each row being in line, there being a strip 9 of low melting point alloy between the rows, which alloy forms, on blowing of the fuse, a low melting point eutectic with the material of the fuse strip.
Patent GB-652342-A (GB)
Title: Improved method of coating articles of magnesium-base alloys
IPC: C25D11/30
Filed: 1948-11-15
Abstract: 652,342. Coating anodically articles of magnesium base alloys. ABBEY, A. (Dow Chemical Co.). Nov. 15, 1948, No. 29659. [Class 41] In a method of coating the articles in an aqueous alkaline bath containing an alkalimetal hydroxide and a water-soluble aliphatic hydroxyl compound, the article is soaked in the bath for a period of from 2 to 10 minutes both before and after the electrolysis. The bath contains preferably lithium hydroxide, and the hydroxyl compound may be a monohydric alcohol such as methanol or ethanol, a polyhydric alcohol such as ethylene glycol, propylene glycol, glycerol, or mannitol, an alcohol-ether such as diethylene glycol, or a mixture of these compounds. Canadian Specification 441,879 is referred to.
Patent GB-1198861-A (GB)
Title: Thermal Barrier System
IPC: F24V30/00
Filed: 1967-06-27
Abstract: 1,198,861. Utilizing energy of radiations. SANDERS NUCLEAR CORP. 27 June, 1967 [27 June, 1966], No. 29686/67. Heading G6P. [Also in Divisions F4 and H1] A diver's suit is heated by the closed circulation of a fluid to which heat is supplied by a flameless exothermic reaction. As illustrated, water is circulated through the suit and is heated in a jacket 42 surrounding a radioactive source. Water passing from the suit passes through an ion-exchange column or filter 28 and a pump 32 to a proportioning valve 36 which divides the water flow between the jacket 42 and a further jacket 54 which cools a thermoelectric generator 52. The thermoelectric generator receives heat from the radioactive source and powers the pump 32 and other electrical equipment (not shown). The valve 36 operates automatically in response to a sensor 100 to provide sufficient flow through the jacket 42 to maintain the hot junction of the thermoelectric assembly at a constant temperature. Water from the jackets flows to a plenum 62 for passage to the suit. Part of the flow is diverted through an external heat exchanger 24 by an automatic valve 60 to maintain the temperature in the plenum at a value set by a control 26. The illustrated apparatus forms a unit which is preferably attached to the front of the diver's suit, Fig. 1 (not shown), so that the diver may warm his hands on the external heat exchanger 24. A by-pass including a valve 70 prevents overpressure in the suit and permits recirculation of water when the unit is disconnected from the suit. An air purge valve 73 is included. Heat source and thermoelectric generator.- The source comprises thulium 170 and/or thulium 171 in a stainless steel capsule which is surrounded by tungsten or uranium shields 74 and 76 and by thermal insulation 102, 103. If thulium 171 is used, all or part of the shield 74 may be omitted. The water jacket 42 is formed of stainless steel and includes plates 86 and 90 whose removal allows access to the source and its insulation and shielding. The thermoelectric generator receives heat from the front of the source and includes electrically insulating mica sheets 9. The water jacket 54 covers the front and sides of the assembly. In another embodiment (not shown) the heat source is a chemical reaction chamber fed with a fuel and oxidant at controllable rates. The fuel may be boron, beryllium, decaborane or aniline, and the oxidant may be sodium super oxide or potassium super oxide.
Patent GB-1106376-A (GB)
Title: A control system for an electrically operated actuator
Inventor: FAULKES KENNETH MILFORD
IPC: H02P23/00
Filed: 1964-07-24
Abstract: 1,106,376. Automatic speed control. ENGLISH ELECTRIC CO. Ltd. July 21, 1965 [July 24, 1964], No.29725/64. Heading G3R. An actuator 10 having an electric motor imparts linear movement to output number 14, the motor being supplied from a three-phase source through power amplifier 12 which receives an input signal from integrator 13. The latter receives a control signal of either polarity from generator 21, and an opposing D.C. signal from tachometer generator 20. The power amplifier 12 provides an output only when the input is above a predetermined value, operation of the motor being either as a continuous pulsating rotation or in discrete pulses of rotation between which the member 14 becomes motionless.
Patent GB-677701-A (GB)
Title: Improvements in preselector devices for gear boxes
IPC: F16H61/02
Filed: 1950-12-05
Abstract: 677,701. Change-speed gearing. SOC. DES FORGES ET ATELIERS DU CREUSOT. Dec. 5, 1950 [Dec. 5, 1949], No. 29767/50. Class 80 (ii). In an eight-speed gear, a desired speed is selected by rotation of an axially-fixed shaft 20 rigidly carrying three drums 22 each provided with two axially-spaced sets of four radial lugs 27, 28, and the selected speed is engaged by rotation of an axially-fixed shaft 33 on which are splined three sleeves 35 each formed with oppositely-handed threads on which are screwed a pair of nuts 39, 40, which are held against rotation by means of a fixed rod 41 engaging grooves in the nuts, but which are movable axially between shoulders 42 on the rod 41. As shown in Fig. 1, wherein the gear comprises parallel input and output shafts 1, 4, two lay shafts and three slidable double wheels controlled by three forks 14, the shaft 33 has been turned anti-clockwise to engage a selected speed, a projection 43 on each fork 14 and one of the lugs on each drum 22 being gripped between the corresponding pair of nuts 39, 40, and one or other nut of each pair abutting against a shoulder 42. If shaft 33 is now turned clockwise, the parts move into the position shown in Fig. 3, wherein all the nuts are at the ends of the sleeves and all abut against shoulders 42, the forks 14 remaining stationary. Shaft 20 is now rotated to select another speed, thus bring- ing a different combination of lugs 27 or 28 within the spaces between the pairs of nuts. When shaft 33 is turned back to its original position, the lugs prevent axial movement of the adjacent nuts and the parts move so that the lugs are again gripped between the pairs of nuts and the forks 14 are shifted by the moving nuts to their new positions. Where the gear comprises aligned input and output shafts and a single layshaft, so that one or other of two cf the three slidable double wheels must always occupy a neutral position, the two drums 22 corresponding to these two forks 14 each have three axially-spaced sets of lugs and the projections 43 on these two forks constantly engage in annular grooves in the corresponding sleeves 35. In this case, during the clockwise movement of shaft 33, to separate the nuts, one cr other of these two forks is simultaneously moved to neutral position.
Patent GB-925682-A (GB)
Title: Lifting units
IPC: B65G67/00
Filed: 1959-09-01
Abstract: 925,682. Load handling machines; loading bays. J. W. KAPPEN. Sept. 1, 1959, No. 29852/59. Classes 78 (3) and 78 (4). A load-elevator for use in a loading bay comprises a platform 44 carried by an hydraulically actuated lifting mast 34 secured to a sub-frame 27 which is pivotally mounted on a base frame 10 for rocking movement about an axis 15 under the control of hydraulic rams 29, 31. In operation, with the mast in a forwardly inclined position, in which the movement of trucks and other loads on to the platform is facilitated, simultaneous supply of fluid to rams 29, 31 and 43 first contracts rams 29, 31 to move the platform to a horizontal position, and then extends ram 43 to raise the platform. The platform is pivoted at 54<SP>1</SP> to a pair of sleeves 36 slidably mounted on a pair of columns and is provided with a catch 49 engageable with a latch 54 to retain the platform in the out-of-use position shown in Fig. 6. Raising of the platform to this position is effected by movement of the sleeves 36 with a chain 59 temporarily connected as shown in Fig. 6.
Patent GB-368356-A (GB)
Title: Improvements in and relating to the nitration of cellulosic material
IPC: C08B5/02
Filed: 1930-10-06
Abstract: Cellulose nitrate is obtained by nitrating with a mixture of nitric and sulphuric acids and water, irregular shreds of parchmentized paper, and thereafter washing the product with dilute alkali, preferably ammonia.  The parchmentized paper may be obtained by treating unsized paper with sulphuric acid preferably 55-55,5 DEG B<\>ae., after which it is comminuted into strips of irregular, curved, corrugated or wavy form of about one-quarter inch wide and three to six inches long.  The strips are preferably compressed into a bale of considerable density before nitration, which may then be carried out by the displacement method.  The cellulose nitrate is washed with water to remove most of the acid and then boiled with water and finally with successive quantities of very dilute ammonia or other alkali until the wash liquid no longer turns yellow.  The product may then be bleached using an alkaline agent, for example, alkaline sodium hypochlorite liquor.
Patent GB-535109-A (GB)
Title: Improved means for ventilating and extracting foul air from the interiors of vehicles
IPC: B60H1/24
Filed: 1939-11-13
Abstract: 535,109. Ventilators for vehicles. ROE, L. B., and ROE, J. J. A. Nov. 13, 1939, No. 29909. [Class 137] An air extracting device is hinged to a frame enclosing an opening to a vehicle so that when the extracting device is raised as in Fig. 4, air flows directly from the interior through the opening, but, when the device is closed as. in Fig. 3 the air is extracted through the device. To a frame a a cover b is hinged at b<SP>1</SP> and the cover has a front baffle d, and a rearwardly extending top plate d' with a forward rib d<SP>2</SP>, and full width duct d<SP>3</SP>, openings c being provided and enclosed by an upstanding flange c' which prevents water passing through the openings. Lugs b<SP>5</SP> on the cover are attached to links b' pivoted at b' and enclosing springs which retain the cover in an open or closed position. A handle b<SP>10</SP> serves for opening or closing the cover. With the cover closed as in Fig. 3, vitiated air is drawn through the apertures c and the duct d<SP>3</SP> and is swept away over the roof of the extractor. When the cover is open air escapes directly through the opening in the frame a and some ventilation effect may occur due to the air extractor in the elevated position. Specification 400.726 is referred to.
Patent GB-1204164-A (GB)
Title: Improvements relating to mechanical locking devices
Inventor: BOYCE FREDERICK CHARLES
IPC: B60N2/90
Filed: 1967-06-28
Abstract: 1,204,164. Seats. PLESSEY CO. Ltd. 25 June, 1958 [28 June, 1967], No. 29920/67. Heading A4J. [Also in Division E2] A seat back adjusting arrangement includes a mechanical locking device in which one of the locking members is connected to a seat back frame structure which is hingedly attached to a seat base structure to which the other locking member is attached. The mechanical locking device comprises two coaxially arranged locking structures, 1 and 2, having inter-engageable male and female parts, 7 and 10 respectively, of conical configuration with each inter-engagable part comprising two sets of generally axially extending teeth, 8 and 9, the angle of inclination of which to the axis of the locking structure in any axial plane being greater than the jamming angle but less than the angle at which the locking structures separate under purely circumferential loading, the locking structures being displaceable towards and away from one another to effect locking thereof or disengagement from one another under the control of actuating means. The actuating means includes a lever actuator 31<SP>11</SP> and cam means, in which the lever actuator is biased to a normal position by a torsion spring 6 and a coiled biasing spring 5 is also provided.
Patent GB-211542-A (GB)
Title: Improved fractionating, distilling or scrubbing column
IPC: B01D3/18
Filed: 1922-11-02
Abstract: 211,542. Mackenzie, M., Sylvester, J., and Outwin, E. Nov. 2, 1922. Column stills and rectifiers.-A columnar apparatus for bringing gases or vapours and liquids into intimate contact comprises superposed plates or trays 2, the overflow orifices 13 of which are surrounded by webs 11 so that the heavier liquid from the base of the tray is discharged to the tray next below. The hoods 7 which surround the gas or vapour inlets 3 have a. number of depending concentric webs 4 diminishing in depth from the centre, and causing the gases or vapours to pass repeatedly through the liquid. Alternate webs 5 have apertures 7 above the surface of the liquid. The column may be used for fractionating the vapours obtained by distilling oil used for scrubbing coke-oven gases. The overflow devices prevent accumulation of water on the plates and enable vapours of 90 per cent benzol to be obtained at the top of the column.
Patent GB-698895-A (GB)
Title: Improvements in or relating to driving transmissions for vehicles
IPC: F16H37/00
Filed: 1950-12-07
Abstract: 698,895. Change speed gear. BRISTOL TRAMWAYS & CARRIAGE CO., Ltd., DINE, E, H., and BUSWELL, F. J. Aug. 31, 1951 [Dec. 7, 1950], No. 30037/50. Class 80 (ii). [Also in Group XXXI] A change speed gear for a motor vehicle comprises an input shaft, a first output shaft arranged to be clutched to the input shaft, a second output shaft gear connected to the input shaft, a shaft arranged to be clutched to the second output shaft and to drive one or more propeller shafts, gear wheels fixed against rotation on the second output shaft and meshing with gear wheels selectively clutchable to the first output shaft. As shown in Fig. 1, a four speed change gear has its input shaft 10 driven, by the vehicle motor and the shaft 10 carries a gear 11 meshing with a gear 12 on the second output shaft 13 which also carries gears 20, 21 meshing with gears 18, 19 rotatably mounted on the first output shaft 15, the gears 18, 19 being connectable to the shaft 15 by the clutch 22. Between the shafts 10, 15 is the clutch 14 and the shaft 15 carries a gear 23 meshing with a gear 24 on the shaft 17 which has at one end the clutch 16 for coupling the shafts 13, 17 together and at the other end is connected by a two part universally jointed propeller shaft with the input shaft of an axle driving differential. The four speeds are achieved by operation of the clutches 14, 16 and 22. As shown in Fig. 2 the change speed gear is arranged to drive propeller shafts 33, 34 through a differential gear. The planet gears 37 are carried by the shaft 17 and carry a gear 35 meshing with the gear 23 on the shaft 15. The sun gears 36 carry gears 44, 39, the gear 44 meshing a gear 42 on a shaft 26 connected by a universal joint 43 to the shaft 33 and the gear 39 meshing with a gear 40 on a shaft 45 connected through a universal joint 41 with the shaft 34.
Patent GB-1159204-A (GB)
Title: Improvements in Joints for Electric Cables
Inventor: HICKMAN ANTHONY
IPC: H02G15/24
Filed: 1966-07-05
Abstract: 1,159,204. Cable joints and terminations. BRITISH INSULATED CALLENDER'S CABLES Ltd. 4 July, 1967 [5 July, 1966], No. 30083/66. Heading H2E. In a stop joint structure for an oil-filled cable, the barrier to the flow of oil comprises a connector 5, which electrically and mechanically connects the cable conductors 1 and 2, and preformed bodies 6 and 9 of insulating material surrounding the connector, one of these bodies 6 being sealed to the connector by an O-ring seal 8 or a seal of the type described in Specification 1,159,202. The preformed bodies 6 and 9 are vacuum cast from epoxy resin around helices 7 and 10 respectively of nylon tubing which form passages for the flow of oil from the cables to their corresponding fluid-tight enclosures on respective sides of the joint. The bodies 6 and 9 have, at their outer ends, metallized recesses at 37 and 38 respectively to form stress cones, and fit tightly on to the dielectric of the cables or on to dielectric layers built up thereon.