baber/WOPTO huggingface dataset:
Patent GB-722150-A (GB)
Title: Improvements in or relating to television pick-up tubes
IPC: H01J31/32
Filed: 1952-08-06
Abstract: 722,150. Television pick-up tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 6, 1952 [Aug. 9, 1951]. No. 19794/52. Class 39 (1). A television pick-up tube comprising a photocathode 7 and electrostatic electron-optical means projecting the electron image obtained by means of the photo-cathode on to a target 9, is characterized in that the photo-cathode and the opposite accelerating anode 15 both have a curved surface, the accelerating anode having a small aperture for the passage of electrons, the photo-cathode and the accelerating anode being substantially concentric and spaced apart by a distance substantially corresponding to the difference of the radii of curvature of the curved surfaces. The accelerating anode 15 may be connected to the collecting electrode 14, but is preferably insulated from it and is preferably at a potential of two or three times the potential of the collecting electrode 14 relative to the photo-cathode; the latter arrangement gives a better resolving power. The cathode 7 may, for example be at -1000V, the anode 15 at 2000V, the collector 14 at earth potential, and the cathode 11 of the scanning gun at -1000V.
Patent GB-188032-A (GB)
Title: A new or improved apparatus for playing games
IPC: F41J9/02
Filed: 1921-07-25
Abstract: 188,032. Rolinson, T. W., and Winters, J. July 25, 1921. Table games. - Appliances for playing a ring-throwing game comprise a number of self-righting dolls 25, Fig. 4, mounted on rotatable tables 4. The tables 4 are recessed in a large table 1 and are adapted' to be rotated by endless belts 8, which pass round pulleys 7 attached to the spindles 5 on which the tables are mounted, and are driven from a power-rotated shafting 15. The object of the game is to throw rings over the moving dolls. Reference has been directed by the Comptroller to Specification 17925/07.
Patent GB-725767-A (GB)
Title: Rim structure
IPC: B60B25/22
Filed: 1953-07-17
Abstract: 725,767. Vehicle wheel rims. WINGFOOT CORPORATION. July 17, 1953 [Feb. 25, 1953], No. 19901/53. Class 144 (2). A divisible rim has an inflation valve 12 sealed thereto and is rendered air-tight for use with tubeless pneumatic tyres by a rubber or like sealing ring engaged in a circumferential recess, groove or cavity bounded by the various sections of the rim to seal the gap or gaps therebetween. Fig. 1 shows a rim 1 having a gutter 16 at one side to receive a split detachable bead-retaining flange 18 which has an axially inwardly extending bead seat portion 19. A rubber sealing ring 22 is disposed in the gutter 16 between the detachable flange portion 19 and the rim base to be engaged by the .tyre bead and compressed thereby to effect a seal between the tyre bead, the rim base 1 and the flange 18. Fig. 2 shows a continuous detachable bead seating and retaining flange 27 held on the rim 1 by a split locking ring 29 engaged in a rim gutter 25, a normally circular section sealing ring 32 being compressed in a circumferential space defined by a stepped portion 26 in the rim and the radially inner surface of the bead sealing portion of the flange 27. Alternative arrangements for positioning the sealing ring between divisible rim sections are described.
Patent GB-1469750-A (GB)
Title: Process of treating timber and the treated product
IPC: B27K3/08
Filed: 1973-04-26
Abstract: 1469750 Treating timber FOSROC AG 11 April 1974 [26 April 1973] 19999/73 Heading D1P Timber consisting wholly or partly of heartwood is impregnated with a preservative in an organic solvent, e.g. tri-n-butyl tin oxide in white spirit, by (1) subjecting the timber to a first vacuum of 200-700 mm Hg for 10 to 150 minutes, (2) forcing preservative into the timber under a positive pressure of 300-1500 mm Hg for 15-150 minutes, and then (3) applying a second vacuum, e.g. 635-685 mm Hg for up to 60 minutes, to extract any excess preservative from the timber. 90% of the total length of the timber is thus impregnated to a depth of 3 mm from any free edge. Redwood, whitewood, larch, Canada spruce, sitka spruce, oak, hemlock and Maranti may be treated.
Patent GB-723165-A (GB)
Title: Improvements in or relating to sealing boxes for the joints of electric conductors
IPC: H02G15/04
Filed: 1953-07-17
Abstract: 723,165. Junction boxes. HAWKE, W. July 17, 1953 [Aug. 8, 1952], No. 20003/52. Class 38 (1). A sealing box for enclosing the end of a cable B whose cores b<SP>2</SP> are joined to conductors E, comprises a hollow body A with apertures a<SP>5</SP> for the introduction of filling compound and closed by screw plugs, one end of the body receiving an externally screw-threaded, tubular member C which screws into a junction box &c. and through which pass the conductors E, a loose disc D with apertures for the conductors and held in place by a circlip F, closing the outer end of member C. The other end of body A has an aperture a<SP>1</SP> large enough to pass the cable sheath b<SP>1</SP> and opening into a screw-threaded socket a<SP>3</SP> which receives a spigot b<SP>1</SP> on a gland member H. Said spigot h<SP>1</SP> has a conical recess h<SP>3</SP> which receives a tapered sleeve K clamped on to the cable sheath by the screwing together of members A, H. In the case of an armoured cable member H has a further spigot h<SP>4</SP> to receive a cover L and armouring clamp as described in Specification 666,004. Where the sheath b<SP>1</SP> is metal, sleeve K provides a connection between the sheath and the junction box &c. Specification 686,299 also is referred to.
Patent GB-791423-A (GB)
Title: High-lift airplane with all-moving tail plane
IPC: B64C5/16
Filed: 1955-07-11
Abstract: 791,423. Controlling aircraft. HELIO AIRCRAFT CORPORATION. [July 11, 1955 July 30, 1954], No. 20011/55. Class 4. In an aircraft having a lift coefficient of at least 2-5, means to ensure a high degree of lateral and longitudinal control at low forward speeds comprise a lift spoiling flap 5 on each wing connected with an aileron 6 and associated with automatic leading edge slats 4. Such arrangement is stated to provide a rolling moment proportional to the lift coefficient. In order to ensure adequate control in pitch at low forward speeds with considerable downwash from the propeller slipstream, the tail plane 10 is pivotally movable about an axis 13 by a control 10b and an anti-balance tab 12, pivoted at 16 to the tailplane, is provided with an arm 14 slotted at 15 to co-operate with a fixed pin to ensure automatic deflection when the tail plane is deflected.
Patent GB-1241197-A (GB)
Title: Method of making non-sag filaments for electric lamps
IPC: H01K3/02
Filed: 1969-04-18
Abstract: 1,241,197. Making wire for electric lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 18 April, 1969 [18 April, 1968], No. 20030/69. Heading B3A. [Also in Division H1] A method of making wire for electric lamps includes preparing an ingot of a doped tungsten powder; sintering, swaging and drawing the ingot into a wire; and stretching the drawn wire to at least its elastic limit but below its ultimate tensile strength. An admixed blend of at least 96% tungsten powder and various dopants, e.g. 99% tungsten, 0À5% potassium chloride, 0À4% silica and 0À1% aluminium oxide, is pressed into an ingot. The pressed ingot is sintered at 2800 C. and then swaged at 1000 C., at least during the initial steps. A reduction in diameter of 10%-20% is achieved at each pass, in which the surface of the rod is hammered. The rod is annealed two or -three times at over 2000 C. during swaging. The wire so formed is then cold drawn with a reduction of area of 10%-30% at each pass. The drawn wire is looped over a first pulley, then over a second pulley of slightly greater diameter and fastened on to a take-up reel. The pulleys are rotated at the same speed and the wire is elongated by approximately the difference in diameter therebetween. The elongation may be increased by looping the wire more than once around each pulley. Coiled-coil filaments are made by primarily coiling the stretched wire around a molybdenum mandrel and annealing it. It is secondarily coiled on a larger mandrel and sintered. The molbydenum mandrel is removed by acid treatment, whereupon the filament is supported on a tungsten rod and flash stabilized at over 2000 C. for about 10 minutes to convert the wire structure from fibrous to crystalline. Finally mounting inserts -are attached to each end of the filament.
Patent GB-761927-A (GB)
Title: An improved coin freed delivery mechanism
IPC: G07F5/04
Filed: 1954-07-09
Abstract: 761,927. Coin-freed delivery apparatus. DEAN, F and DEAN, H. [trading as DEAN BROS.]. June 30, 1955 [July 9, 1954], No. 20096/54. Class 27. A coin-freed delivery mechanism comprises a coin carrier 12 fixed on a spindle 2 rotatable by a knob 18 and a sleeve 21 rotatable on the spindle and having two or more recessed delivery members 10, 11 beneath storage compartments 8 and 9 ; on the insertion of two or more coins, a pawl tooth 28 on a pivoted detent plate 25 is lifted from a toothed stop disc 23 on the sleeve 21 and a lug 16 on the spindle can drive the sleeve after taking up the lost motion between two spaced lugs 24 on the sleeve. When the mechanism operates on two coins, counterclockwise rotation of the spindle, while taking up the lost-motion, moves the first coin into a slot 29 on the detent plate 25 where it is ineffective to lift the pawl tooth 28 but the second coin, lying face to face with the first outside the slot, lifts the plate and pawl tooth and allows further rotation of the spindle for delivery of an article and release of the coin, until the coin can engage the next tooth of the stop disc 23. A spring-loaded lever 19 bearing on a star disc 17 fixed to the coin carrier tends to rotate the carrier in a clockwise direction but movement in this direction beyond the zero position is prevented by a pawl 34 and ratchet 22.
Patent GB-358093-A (GB)
Title: A new or improved chipping or slicing machine for vegetables and the like
IPC: B26D3/18
Filed: 1930-07-03
Abstract: 358,093. Chipping and slicing machines. COTTINGHAM, R. F., Enterprise Works, Digby Street, Scunthorpe, Lincolnshire. July 8, 1930, No. 20179. [Class 5 (i).] A machine for chipping or slicing vegetables &c. comprises a feed chamber in which reciprocates a piston forcing the charge through a cutter plate, a charge-holding shoot above the feed chamber, a charging shelf, reciprocating synchronously with the piston, above the shoot, and a feed hopper above the shelf, the said shelf being in the open position when the piston is fully advanced and in the closed position when the piston is fully retracted. A piston 5 housed in a feed chamber 1 and a charging shelf 11 reciprocated in guides 12 are driven from a crank shaft 6 by means of links 8, 13 the shaft 6 being driven by worm gearing from an electric motor or hand-wheel. Vegetables or the like, supplied to the hopper 2 manually or mechanically, are thence fed to a reserve supply shoot 3 equal in size to the feed chamber 1. On retraction of the piston, the shelf 11 cuts off the supply from the hopper and the vegetables or the like fall into the chamber 3, being forced through adjustable cutter blades 4 by the piston. The feed shelf 11, Fig. 2, has a cut-away portion 14 with coil springs 15 forming a resilient mat to prevent bruising of the vegetables or the like when the shelf closes.
Patent GB-603454-A (GB)
Title: Improvements relating to high frequency electrical heating apparatus
IPC: A61N5/00
Filed: 1945-08-07
Abstract: 603,454. High-frequency heating. JENNINGS, H. W. K. (Mittelmann, E.). Aug. 7, 1945, No. 20223. [Class 39(iii)] [Also in Group XL(c)] High frequency heating apparatus comprises an electron valve oscillator, the associated anode and tank coil being at earth potential, and the tank coil is connected to a tubular induction heating coil, connections for cooling fluid being provided on the heating coil and on the tank coil or a coil in parallel with the tank coil. The balanced circuit shown in Fig. 1 is a push pull oscillator with a tank circuit 14 and 16. High frequency energy is applied to the subject material via induction heating coil 22, which is fed from taps on coil 14. The centre of coil 14 and the positive terminal of the voltage supply are earthed. For cooling purposes the heating coil, leads, and part of the tank inductance 14 are made tubular so that water may be circulated. Inlet and outlet fluid connections may be formed at the centre or ground potential points of the heater coil and the tank coil 14, so that they are at equal potential. A modification is shown in Fig. 4. in which the fluid circuit is completed by means of a second tubular coil 34 in parallel with heater coil 22 and part of tank coil 14 so that the latter need not be partly of tubular construction. The leads 28a and 30a are connected to taps on coil 14 to provide variable coupling means. The second coil 34 has large inductance to minimise the shunting effect.
Patent GB-941976-A (GB)
Title: Infra-red filters
IPC: F21V9/04
Filed: 1960-06-09
Abstract: 941,976. Infra-red filters. ELTRO G.m.b.H. June 9, 1960 [June 9, 1959], No. 20249/60. Drawings to Specification. Heading G2J. An infra-red filter comprises a carrier (as of glass) which transmits infra-red and an infrared foil (as of gelatin or synthetic resin) and a metallic coating (as of silver or gold) which transmits infra-red and reflects visible radiation. The coating may be on the same side of the carrier as the foil or on the side opposite thereto and, if desired, an infrared coating (as of silicon monoxide, magnesium fluoride, lead fluoride or zinc sulphide) which reduces. The amount of infra-red reflected from the carrier may be provided on the side of the carrier remote from the metallic coating. On the side of the foil remote from the metallic coating, a second carrier may be provided with another infra-red coating. This filter may be used in an infra-red searchlight.
Patent GB-133217-A (GB)
Title: Improvements relating to Apparatus for use in the Treatment of Liquids with Gases.
Inventor: MAGRATH HENRY JAMES
IPC: F17C13/04
Filed: 1918-12-06
Abstract: 133,217. Magrath, H. J. Dec. 6, 1918. Gas distribution systems.-Relates to apparatus for automatically opening the supply from a fresh cylinder or receptacle containing gas under pressure to the delivery plant, used in the treatment of liquids with gases, e.g. the treatment of water or sewage with chlorine, when the gas in the cylinder previously in connexion becomes exhausted. The apparatus comprises weightoperated or like mechanism to open the valve of the new source of supply when the mechanism is released by a relay device thrown over a deadcentre position on movement of a diaphragm subjected to the pressure of the gas in the supply system. As shown in Fig. 1, cylinders x, y are connected to valves m, m<1>, and thence by pipes n, n<1>, to the service pipe z. A pipe v leads from the pipe z to a diaphragm chamber a. The valve m being open, the exhaustion of the gas in the cylinder x will cause a reduction of pressure in the pipe z and in the pipe v. The diaphragm is pushed from above by a spring, and a rod c, Fig. 2, encircled by the spring is connected to its centre. Downward movement of the rod c releases a catch lever e from engagement with a toothed wheel h and allows a weight r to turn a chain wheel o, bevel wheels p, p<1> and a spindle j<1>. The rotation of the spindle j<1> closes the valve m and opens the valve m<1> by means of blocks l, l<1> which carry the heads of the valve stems. A bow spring d engaging with spring supports d' and passing through a slot in the rod censures that the rod c moves sharply on a reduction of pressure which brings the bow spring below its horizontal dead-centre position. The speed of the spindle j<1> is controlled by a spring governor g which draws the wheel h along the spindle h<1> bringing the wheel into contact with a brake arm f. The bow spring d may be replaced by any equivalent relay device, e.g. a weighted lever with a dead-centre position.
Patent GB-1349078-A (GB)
Title: Rod wiper
IPC: F16J15/32
Filed: 1971-04-19
Abstract: 1349078 Rod wipers A-T-O Inc 19 April 1971 [3 Feb 1970] 20303/71 Heading F2B A wiper 30 around, for example, the rod 18 of an hydraulic cylinder comprises an annular body 31 of synthetic plastics material (e.g. polyurethane with or without a filler of glass fibre) formed with a wiping flange 33 and a flange 38 which has a frusto-conical wall 41 and an end wall 40 in engagement with corresponding walls 53, 55 of an annular cavity 50.
Patent GB-1437372-A (GB)
Title: Method of making modular cast iron
IPC: B22D27/20
Filed: 1973-04-30
Abstract: 1437372 Casting processes W H MOORE 30 April 1973 [1 Nov 1972] 20345/73 Heading B3F [Also in Division C7] Low sulphur iron having a chill value of not more than <SP>8</SP>/ 32  inch is initially treated with sufficient rare earth metal and alkaline earth metal to increase the chill value by 50 to 150% and is then poured into a mould incorporating a reservoir and skimmer gate, the reservoir containing -1% (based on the wt. of iron) of a magnesium alloy such that the iron has a residual magnesium content of at least 0À1%. The iron may contain (by wt.) 3À3-4% C, 1-3% Si, 0À2-1% Mn, 0À02-0À1% P, 0À005-0À06% S, with possibly also Ni, Cu and/or Mo, the low sulphur content being obtained by treatment with calcium carbide while agitating the bath by gas from a porous plug; the preferred addition agent for the first step of the spheroidizing process is a mixture of cerium fluoride with calcium silicide or carbide. The magnesium additive may be in the form of magnesium ferrosilicon or magnesium-nickel alloy and may initially occupy between 25 and 50% of the volume of the reservoir.
Patent GB-376951-A (GB)
Title: Improvements in or relating to microphones
IPC: A63H33/10
Filed: 1931-07-15
Abstract: 376,951. Resonators. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. July 15, 1931, No. 20357. Convention date, Aug. 21, 1930. [Class 13.] In order to widen the frequency range of the sounds transmitted by an electrodynamic microphone of the kind having a current-carrying diaphragm arranged in a magnetic field, several damped acoustic or mechanical resonators responsive to different frequency ranges are used. As illustrated, the strip diaphragm 2 mounted in the airgap of a magnet 7 has arranged behind it a pressure chamber 1 in communication with a tone chamber 3 through a slot 4. The chamber 3 is filled with felt and is connected to the air through slots 5. The chamber 1 communicates with the air through gauze windows 6.
Patent GB-459883-A (GB)
Title: Improvements in or relating to the jointing of coaxial conductor electric cables
IPC: H01R9/05
Filed: 1935-07-17
Abstract: 459,883. Cable couplings. STANDARD TELEPHONES & CABLES, Ltd., and BIRKBY, H., 63, Aldwych, London. July 17, 1935, No. 20380. [Class 38 (i)] A joint for concentric-conductor cables with air spacing, employed for transmitting highfrequency currents having a wide frequencyband, is designed so that the mechanical and electrical characteristics of the cables are as far as possible unaltered through the joint. In the joint shown, for cables having open helices 6, 7 of textile insulating material for supporting the outer conductors 2, 3, the inner conductors 4, 5 are connected directly by brazing or soldering and are fitted with insulating dowels 11, 12 through which the helices 6, 7 are connected by cords 8, 9 knotted at 10. The outer conductors 2, 3 are connected by a split sleeve 15 of the same material and dimensions, the adjacent ends of the sleeve and outer conductors being fitted with rings 13, 18 and the joint being completed by bindings of thin copper wire wound between the rings and into V-shaped cavities 16 formed by the chamfered ends and then covered with a layer of soft solder. The joint may be enclosed in a lead casing 1 sealed to the sheaths of the cables. In a modification both inner and outer conductors are joined by sleeves of the same length and of such diameter that the ratio of the internal diameter of the outer conductor to the external diameter of the inner conductor is the same in the joint as in the cable.
Patent GB-390040-A (GB)
Title: Improvements in or relating to thermostatically controlled valves for gas heating apparatus
IPC: F17D3/14
Filed: 1932-07-19
Abstract: 390,040. Valve accessories. PARKINSON STOVE CO., Ltd. and LUSK, A., Station Road, Stechford, Birmingham. July 19, 1932, No. 20381. [Class 135.] Strainers, applications of.-In a thermostatically-controlled valve for gas-heated apparatus, a hollow cylindrical filter g of wire gauze or like material is arranged in a cylindrical chamber a having its axis vertical, the gas passing through an opening in the upper end of the chamber, through the filter and out through an opening b in the side of the chamber to the valve, of which the seating c only is shown. A ring h secured to the upper end of the filter is pressed against an annular seating in the chamber a by a spring k. The latter is secured to the lower end of the filter and to a screw plug f so as to be removable with the screw plug, into which the accumulated dust gravitates. Gas entering at the inlet e and passing along the passage d has its path bent twice at right-angles, these changes in direction assisting in throwing down the dust. The lower end of the filter is provided with a ring which has a good fit in the screw plug.
Patent GB-651357-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: B65D5/38
Filed: 1948-07-30
Abstract: 651,357. Boxes. CLELAND, Ltd., W. W., and BUCHMAN, A. A. July 30, 1948, No. 20389. '[Class 18] The tray and shell of a tray-and-shell box are provided with tabs which interengage to prevent the complete withdrawal of the tray from the shell. The shell is formed from a blank of cardboard ox the like, into a rectangular tube and is closed at one end by end flaps 11, 16, 17 and at the other end is provided with tabs 21 extending from the side walls and which are inturned to project towards the Closed end of the shell. The tray, also formed from a blank of cardboard or like material, has sides and ends foldable up from a central base portion 22, each end of the tray comprising inturned extensions of the side walls over which end walls 30, 42 are folded and retained in position by tongues on the end walls engaging slots 32, 47 in the crease line between the end walls and base portion, or by stapling or glueing. One tongue 44 may be extended to serve as means for removing the tray from the shell. Alternatively in the case of stapling or glueing the tongue 44 may be cut out of the end wall. Tabs 35 extend from the side edges of the end wall 30 and are folded substantially flush with the side walls 25, 26. The tray is inserted in the shell with the end tabs 35 innermost so that upon the action of withdrawing of the tray the tabs 35 and 21 interengage and prevent its complete withdrawal. In a further arrangement two shells each closed at one end may enclose the tray from opposite ends tabs being provided at each end of the tray to interengage with tabs on the shells to prevent their complete removal. The ends of the tray may be formed by folding over a flap 54 attached to one side wall 25, Fig. 8, and folding inwardly a flap 56 having a tongue 58 to close the end, a flap 60 projecting from the flap 54 projecting into the base corner of the box to add rigidity to the end of the tray.