baber/WOPTO huggingface dataset:
Patent GB-1007227-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B12/74
Filed: 1963-07-30
Abstract: 1,007,227. Bullets. GEVELOT. July 30, 1963 [Feb. 14, 1962; Aug. 6, 19621, No. 30152/63. Heading F3A. A projectile has a core of synthetic material and a metallic jacket closed at the rear end. The core 3 is secured within the jacket 1 and has a pointed forward end 5, which may be truncated, and a recess 4 to give the assembled bullet a smooth surface. The jacket may or may not have a bottom 2. In an embodiment a hollow core is formed having its cavity extending from the rear face and into the pointed forward end.
Patent GB-1254816-A (GB)
Title: Coloured filaments of acrylonitrile-vinylidene chloride co-polymers
Inventor: LOERZER ULRICH
IPC: D06P3/70
Filed: 1970-06-22
Abstract: 1,254,816. Dyeing co-polymers. CHEMIEFASERKOMBINAT SCHWARZA "WILHELM PIEK" VEB. 22 June, 1970, No. 30196/70. Heading D1B. Fibres and filaments made from acrylonitrile-vinylidene chloride copolymers containing 5-50% by weight of vinylidene chloride, 0.125-5% by weight of an ethylenicallyunsaturated sulphonic acid or a salt thereof and optionally up to 10% by weight of a further copolymerisable component are dyed by spinning a solution of the co-polymer in an appropriate solvent into a coagulation bath followed by treating with a solution of a dyestuff whilst the filaments are still in the gel state before, during or after stretching. Preferably the copolymer is proudced by radicalinitiated solution polymerisation, the salt of the sulphonic acid may be a sodium or N- alkyl substituted ammonium potassium or ammonium salt which in the free sulphonic acid state preferably amounts to one fortieth of the vinylidene chloride present in the copolymer. Acid, boric, sulphur and disperse dyes are specified as suitable.
Patent GB-1481845-A (GB)
Title: Oscillator control circuits
IPC: H03K12/00
Filed: 1974-07-09
Abstract: 1481845 APC systems SIEMENS AG 9 July 1974 [16 July 1973] 30273/74 Headings H3A and H3T In an APC loop arrangement including a switching type of phase discriminator D, a low pass filter TP and a controlled oscillator G2, the reference signal from oscillator G1 is a subharmonic of the oscillator G2 frequency and is converted by stage PF to a pulse train having a pulse duration substantially equal to that of one half-cycle of the oscillator G2 output. The reference oscillator is preferably a crystal oscillator. The phase discriminator D produces a positive or negative D.C. voltage component in dependence upon whether the centre of any individual pulse of the pulse train lies before or after a zero transition of the oscillation which is to be synchronized. The control path includes an amplifier V with an A.C. feed-back path so that at switch on or at loss ofsynchroniation, the amplifier executes a damped oscillattion to sweep the oscillator G2 towards the synchronization range. A pulse generator (see Fig. 3) comprises a step recovery diode D1 which stores a charge during the negative half cycle of an input sine wave, the charge being completely removed after a certain duration when the voltage across the diode assumes a value and shape determined by the input signal. This output is transmitted through a short-circuited line as to obtain the same wave reflected by 180 degrees. The combination of the forward and reflected waves produces pulses of predetermined duration (Fig. 4d, not shown) delivered to a pulse transformer. The diode Dl is biased by an arrangement including resistors R1, R2 and a Zener diode D2. An arrangement producing a low frequency damped oscillation train comprises a differential amplifier T1, T2 with an A.C. feed-back network R12, C10 which executes a slow oscillation with a voltage surge or with an increase in input amplitude above a certain level.
Patent GB-151862-A (GB)
Title: Improvements in or relating to machines for coating or covering ribbon metal, wires and the like
IPC: B05C11/02
Filed: 1919-12-04
Abstract: 151,862. Weeks, E. C. Dec. 4, 1919. Coating materials in long lengths.-In an apparatus for coating ribbon metal wire and the like, in which the wire &c. passes through a bath of adhesive or plastic material, the wire is supported while in the bath, by an intake guide and a drawplate die, which are formed as one unit so that they may be adjusted or withdrawn together. In the apparatus shown, the flow of coating material contained in the reservoir d is regulated by adjusting the nut f which, causing sliding movement between the concentric cylinders e, c, covers or uncovers the holes j. The intake guide i which is fastened to the drawplate h by means of sleeve h', fits into the hollow cylinder e and the whole unit is fixed to the outer cylinder c, by any suitable means.
Patent GB-894467-A (GB)
Title: Improvements in and relating to reclining chairs
IPC: A47C1/034
Filed: 1960-09-02
Abstract: 894,467. Reclining chairs. LORENZ, A. Sept. 2, 1960 [Sept. 9, 1959], No. 30411/60. Class 52(2) A reclining chair has a combined backrest and seat unit 22 pivoted at 34 to a bracket 30 on the frame 10 by a bar 28 at each side of seat 26 and a leg rest 36 made of two hinged parts 38, 40 supported on a lazy tong linkage having links 42, 52 pivoted to seat bar 28 the link 52 having a bell-crank extension 72 connected pivotally to link 76 pivoted to bracket 30, reclining movement of unit 22 causing the leg rest to swing on to cross-bar 18 of the seat frame engages seat 26 to act as a stop.
Patent GB-1237315-A (GB)
Title: A method of, and an apparatus for, producing a gas mixture
IPC: B01F15/04
Filed: 1969-06-16
Abstract: 1,237,315. Mixing flowing gases in preportions. O. H. DRAGER [trading as DRAGERWERK HEINH. & BERNH. DRAGER]. 16 June, 1969 [15 June, 1968], No. 30451/69. Heading B1C. Gases A, B are supplied separately through a pressure reducer and equalizer 3, Fig. 1, and slide valve 17 to measuring chambers V 1 , V 2 ; when the valve 17 is changed over the chambers V 1 , V 2  are disconnected from the gas supply and discharge through pressure reducer and equalizer 23 to the mixing chamber 24. The valve 17 may be changed over by a timing device or in dependence on the pressure in chamber 24. In another embodiment, Fig. 2, the pressures are equalized by a rocker bar 59 which has a lower position as depicted on which the chambers 53, 53a and the measuring chambers V 1 , V 2  are connected to the gas supply, and an upper position in which they are connected to the mixing chamber 24. The rocker bar is moved from the lower to the upper position by snap action when the pressure in the chambers 53, 53a acting on the diaphragms 54, 60 overcomes the attraction of the magnet 70 for the aperture 69 on which the rocker bar is pivoted.
Patent GB-386383-A (GB)
Title: Improvements in and connected with the construction of boats
IPC: B63B3/00
Filed: 1931-11-03
Abstract: 386,383. Boats. HEINEMANN, A., Bellingham, Washington, U.S.A. Nov. 3, 1931, No. 30453. [Class 113 (ii).] A framing for boats comprises U-shaped metal transverse frames B which may be hollow or of U - section. Longitudinal metal frame members are welded or brazed to the inwardly bent upper ends 6 of the transverse members. Additional bracing members may also be attached at these points. The stem 17, Fig. 5, comprises the metal tube carrying wing-plates 18, the planking and the rounded nose being attached to the stem by screws 13, 20. The boat is also provided with lower transverse frames 9, covered by flooring 10 to provide a watertight chamber 15, the flooring and the exterior planking being covered by a waterproof fabric.
Patent GB-1313205-A (GB)
Title: Filling compositions
IPC: C09D5/34
Filed: 1970-06-23
Abstract: 1313205 Filling compositions BALM PAINTS Ltd 23 June 1970 [23 June 1969] 30458/70 Headings C3B C3P and C3R A filling composition comprises a malleable paste with a solids content (see below) of at least 70% by volume, the solids comprising (a) 50- 92% by volume of spheroidal polymer particles optionally pigmented and of non-uniform particle diameter and (b) 40-8% by volume of an organic binder. The solids refers to the substances left when the composition is dried, and the volume percentage is based on the volume of the malleable paste before drying. The spheroidal particles may be of any polymer, a long list of which is given. The binder may be, for example, a synthetic polymer, linseed, soya or safflower oils (which dry to solids), rosin, a rosinmaleic acid ester, a coumarone indene resin, a modified alkyd, nitrocellulose or shellac. In the case of initially liquid binders, a diluent may not be necessary, but with solid binders, water or an organic solvent may be used. In the examples the components were: (1)-(4). (7) and (8), an acrylic polymer (binder) latex and polymethyl methacrylate particles, with or without tri-n-butyl phosphate plasticizer; (5) linseed oil (drying binder) and cross-linked epoxy resin ("Epikote", Registered Trade Mark) particles; (6) tetra-alkyl diglycerol (liquid binder which is catalytically solidified) and particles of a urea/formaldehyde resin; (9) a latex of an acrylic polymer binder, particles of an ethyl acrylate/diethylene glycol dimethacrylate copolymer, and plasticizer (for the binder), and water; (10) polymethyl methacrylate binder, particles of a cross-linked methacrylate ester copolymer, and a hydrocarbon solvent; (11) a soya/pentaerythritol alkyd binder, particles of styrene/divinyl benzene copolymer and turpentine; (12) the latex of Example (1), particles of styrene/ divinylbenzene copolymer, talc and plasticizer; (13) as in (1) with the addition of barytes; (14) binder of a styrene terpolymer latex, particles of barytes-pigmented polystyrene, plasticizer and water; and (15) latex of Example (1), particles of a polyamide cross-linked epoxy resin, plasticizer and water.
Patent GB-1468848-A (GB)
Title: Cap for a liquefied gas container
IPC: F23Q2/38
Filed: 1974-07-10
Abstract: 1468848 Lighters FLAMAGAS SA 10 July 1974 [11 March 1974] 30482/74 Heading F4F A cap for a liquefied gas container for refilling gas lighters is provided with a recessed portion 3 in its base and a central pin 5 in which portion is friction-fitted a lower disc 8 having a plurality of recesses 4 and upon which pin is rotatably mounted an upper disc 7 which is of transparent material and provided with a window 9. The recesses provide accommodation for lighter spare parts to which the window provides access.
Patent GB-731299-A (GB)
Title: Improvements relating to dynamo electric machines
Inventor: KILNER WILLIAM NORMAN
IPC: H02K3/24
Filed: 1952-12-02
Abstract: 731,299. Cooling dynamo-electric machines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 8, 1953 [Dec. 2, 1952], No. 30557/52. Class 35. Rectangular conductors forming rotor end windings have longitudinal cooling ducts and have apertures in their side (radial) portions communicating with the longitudinal ducts; and the latter may or may not extend throughout the slot conductor portions. As shown, the conductors comprise pairs of channel members providing ducts 3 throughout their lengths and in the end winding portions recesses 11 are cut in the sides of the conductors communicating with ducts 3. Gas such as hydrogen enters by recesses 11 and flows through the end windings into the slot portions whence it can escape outwards to the airgap through radial holes 10 made at intervals in the conductors and slot wedges 5. Axial ducts may also be provided at the bottom of the conductor slots and the gas in them may flow only into the conductor slots near the centre (axially) of the rotor. Radial passages 17 may be provided at intervals in the end windings and these may or may not coincide with the recesses 11.
Patent GB-1042350-A (GB)
Title: An improved hitching device
IPC: B60D1/46
Filed: 1963-08-01
Abstract: 1,042,350. Tractor-trailer hitches. Y. B. G. MAZERY. Aug. 1, 1963 [Sept. 4, 1962; June 26, 1963], No. 30573/63. Heading B7T. Discs T, T1, Figs. 1, 2, mounted on the tractor rear axle casings F, F1, are each embraced by rotatable collars C, C1 having extending arms A, B, A1, B1, which converge rearwardly and provide upper and lower pivot pins V and U on a vertical axis Y-Y. The frame P so formed is rockable about an axis X-X and braced by struts I providing lugs O to receive towing links. The trailer is connected to the frame P by a drawbar D and an adjustable telescopic stay K. The frame may be raised or lowered to facilitate hitching, and a jack may be provided at the pin U. In Fig. 3 (not shown), the discs may be eccentrically adjusted about the axle axis Z-Z by means of a pin CL engaging a dog clutch DC, or the discs may be displaceable in the direction of the longitudinal axis of the tractor. In Fig. 4 the frames RF are supported on an axle TA slidable with a block SB.
Patent GB-1192179-A (GB)
Title: Improvements in or relating to Sealing Devices
IPC: B63H3/04
Filed: 1967-07-04
Abstract: 1,192,179. Ship's propeller. KARLSTADS MEKANISKA WERKSTAD A.B. 4 July, 1967 [5 July, 1966], No. 30717/67. Heading B7V. [Also in Divisions F1 and F2] The adjustable-pitch blades in a ship's propeller are sealed to the hub 3 by a device 1 (Division F2) which can be operated on from outside in an emergency to bring a second seal into use. When the second seal (43), Fig. 2 (not shown) is to be put into use, rings (19), (21) are withdrawn by screws (47) towards an abutment (51), the worn seal (41) thereby being unloaded and the second seal compressed against sliding surface (39). Each blade is fixed by bolts 9 to a ring 11 which is connected by crank-pins 15 to a pitch-setting mechanism 17.
Patent GB-1508857-A (GB)
Title: Moulding compositions based on bitumen and olefin copolymers
IPC: C08L95/00
Filed: 1975-07-24
Abstract: 1508857 Moulding compositions BASF AG 24 July 1975 [25 July 1974] 30959/75 Headings C3K C3M and C3N Moulding compositions comprise (1) 10 to 90 parts by weight of bitumen, (2) 90 to 10 parts by weight of a copolymer of an olefin and an unsaturated carboxylic ester and (3) 0À1 to 10 parts by weight of where X and Y are COOH, esterified carboxyl, CN or OH or together form a -CO-O-CO- group, and Y may also be H. The compositions may also contain fillers and may be made into free-flowing granular moulding materials. The copolymer may be derived from ethylene and a butyl acrylate or methacrylate or vinyl acetate, optionally together with acrylic acid, and may be admixed with polyolefins, e.g. polyethylene. Examples describe compositions comprising bitumen, ethylene/n-butyl acrylate copolymer and as anti-tack additives dimethyl phthalate, phthalonitrile, phthalic acid, phthalic anhydride and benzoic acid.
Patent GB-535796-A (GB)
Title: Improvements in light shields for hurricane and other lamps
IPC: F21V37/02
Filed: 1939-11-28
Abstract: 535,796. Lamps. OSMOND, G. E. Nov. 28, 1939, No. 30963. [Class 75 (ii)] A light shield for a hurricane or like lamp comprises two tubular opaque sections 1, 3 having light apertures 5 formed by spaces between lugs 4, wires or like joining together the two sections 1, 3. Each of the members 1, 3 may be cylindrical or conical, and the lower member 3 may extend upwardly into the bottom of the upper member. A baffle 11 may be provided to prevent light beams radiating upwardly, and a flat horizontal or cup shaped fin 10 may be mounted below the source of light to intercept downwardly directed rays.
Patent GB-928800-A (GB)
Title: A method of heat insulating cavity walls
Inventor: DENCHFIELD THOMAS
IPC: E04B1/41
Filed: 1960-09-09
Abstract: 928,800. Insulating cavity walls. FIBREGLASS Ltd. Aug. 11, 1961 [Sept. 9, 1960], No. 31111/60. Class 20 (4). A cavity wall 1 is insulated by retaining preformed insulating material 2 in the cavity so that it is spaced from at least one of the cavity wall leaves. The preformed slabs of insulating material shown, which may be slabs of resin bonded glass fibre or foamed polystyrene are supported on wall ties 4, and pressed against the inner leaf 6 of the wall by spring spacers 3 made e.g. of metal or plastic, which may also be of a C or a vertically elongated C form.
Patent GB-928072-A (GB)
Title: Improvements in and relating to inductive apparatus including an oil-immersed winding
Inventor: CHADWICK ALBERT THOMAS
IPC: H01F27/28
Filed: 1958-09-30
Abstract: 928,072. Transformers. ENGLISH ELECTRIC CO. Ltd. Sept. 22, 1959 [Sept. 30, 1958], No. 31133/58. Class 38 (2). An oil-immersed power transformer or other inductive apparatus has both axial and radial ducts for the oil to circulate over the windings. In a preferred arrangement the high-voltage winding comprises interconnected disc coils 10, each comprising a single conductor layer formed by winding a flat strip conductor 15 into a flat spiral. The coils are spaced from cylindrical former 13 by axial strips 14. The coil turns are aligned and spaced from adjacent coils by U-shaped axial spacers 16 arranged in pairs with bights 16b separating the middle turns of the coil. The turns are radially spaced by spacers 17 notched at their edges (Fig. 3, not shown), to engage with arms 16a of spacers 16. The low-voltage winding may be of helical construction, i.e. with two or more conductors wound to form a continuous helix, and employs similar cooling arrangements with axial and radial ducts. A modified helical arrangement is referred to in which the turns are at the same level over most of the coil circumference, and are then stepped axially to the next coil section. The series capacitance of the highvoltage winding may be increased to provide surge protection by winding the disc coils with pairs of conductors side-by-side, and interconnecting two adjacent discs (Fig. 5, not shown), to form a coil unit. Radial spacers 17 are then provided only between adjacent pairs of turns. The apparatus is immersed in oil in a tank, the oil circulating through external coolers and a pump.
Patent GB-444972-A (GB)
Title: Improvements in or relating to muting devices for radio receivers
IPC: H03G3/26
Filed: 1934-10-30
Abstract: 444,972. Valve circuits for wireless reception. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ACKROYD, J. O., c/o General Electric Co., Ltd., Wembley, Middlesex. Oct. 30, 1934, No. 31144. [Class 40 (v)] The muting volt age applied to a low frequency amplify ing valve is removec when an A.V.C voltage passes through a predeter mined value and the potential differ ence between the electrodes of a diode lying outside the path of the signals is caused to change in sign thereby. As shown, the low fre quency amplifier V3 is, in the presence of signals of above a predeterminec amplitude, biassed by a normal negative operating potential derived from a potentiometer R5, R6 connected across the resistance R4 forming part of a supply potentiometer and applied to the control grid 2 through the resistance R12. The junction of the resistances R5, R6, R12 is connected to the anode 6 of a diode X, the cathode 7 of which is connected to the anode 8 of a triode VI, the impedance of which is controlled by an A.V.C. potential applied to its grid 9 so that when the A.V.C. potential passes through a predetermined value the potential of anode 8 and hence cathode 7 becomes negative relative to the anode 6, the diode X becoming conductive. The grid 2 of the amplifier V3 thus assumes the potential of the anode 8 which is sufficiently negative to paralyse the amplifier. The point at which the diode X becomes conducting may be varied by adjusting the cathode potential of V1 by a potentiometer R10 forming part of the main potential divider across the H.T. source. In a further embodiment, Fig. 2 (not shown), the diode is arranged to be nonconductive when the amplifier is to be muted becoming conductive when the A.V.C. potential rises and allowing the normal amplifier bias to be applied. Specification 407,317 is referred to.
Patent GB-239826-A (GB)
Title: Improvements in or relating to electric gas filled discharge tubes
IPC: H05B41/232
Filed: 1924-12-30
Abstract: 239,826. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Sep 11, 1924, [Convention date]. Addition to 236,155, [Class 39 (i), Electric lamps, Arc &c.]. Supplying consuming devices; lighting systems. - Electric discharge tubes giving a light-radiating positive column and with conductive members along the tubes as claimed in the parent Specification are arranged in installations in which a number of tubes in series have their conductive members so constructed and connected that, before the gas discharge is established, the voltage is distributed unequally to the tubes. The efficiency is increased by thus reducing the operating voltage below the sum of the separate voltages of the tubes. The installation is applicable to advertising illuminations with tubes in the shape of characters, the characters being so combined that the total length of tubes in series in each of a number of sets of tubes is the same. The unequal voltage distribution may be produced by arranging that the capacities of the conductive members relatively to the electrodes of the corresponding tubes are unequal, for example, by giving different sizes to the conductive surfaces or by means of auxiliary condensers or other impedances. The silver mirror or like exterior conductive layer 8, Fig. 2, of at least one tube 2 of a number in series may be connected through a condenser 9 to the electrode 5, the mirror 7 of another tube 1 being directly connected to the electrode 3 and the tubes lighting in succession. In another arrangement with two parallel sets of tubes in series, the conductive layers 17 - - 19, Fig. 3, of the tubes of each set are connected together and to one main, which may be earthed. Before the discharge is established, the voltage between the member 19 and the electrode 25 of the tube 14 is greater than the voltage between its electrodes 24, 25, and the tubes 14 - - 12 light up in succession. The tubes may be supplied through a transformer 15 and adjustable steadying resistance 16. The Specification as open to inspection under Sect. 91 (3) (a) comprises also arrangements with unequal resistances or choking coils in parallel to the tubes and installations in which at least one tube is used with the voltages between the conductive member and the electrodes 120‹ out of phase with the voltage between the electrodes, for example, with the conductive member and the electrodes connected to the phases of a 3-phase system. This subject-matter does not appear in the Specification as accepted.