baber/WOPTO huggingface dataset:
Patent GB-134872-A (GB)
IPC: H04R19/00
Abstract: 134,872. Western Electric Co., (Western Electric Co.). Sept. 20, 1918. Transmitters and receivers ; thermionic relays. -The natural period of vibration of the diaphragm of a telephone transmitter or receiver is raised above the upper limit of speech frequency by placing a broad flat surface not more than 2.5 mils from the vibratory diaphragm in order that the layer of air between the diaphragm and the flat surface may increase the damping coefficient, while the diaphragm is stretched to increase its elasticity. The vibratory electrode 6, Fig. 3, of a condenser telephone, is held near its edge and is stretched by a projection 12 on the ring 11. The fixed electrode 7 is mounted on a glass or amber disk 14 resting on a mica ring 10 and held in position by a ring 17. When applied to a magnetic transmitter or receiver the plate 7 may be the polar end of the electromagnet core, and when applied to a microphone the plate 7 carries the back electrode. The condenser telephone 20, Fig. 4, is connected in circuit with a battery 28 and a high resistance 29, the ends of which are connected to the grid 23 and filament 21 of an amplifier 22. The plate circuit 32 of the amplifier is connected to a receiving circuit by a transformer 25, 26.
Patent GB-223517-A (GB)
Title: Improvements in or relating to plugs for oil stills, oil tanks and the like
IPC: B65D41/08
Filed: 1924-06-02
Abstract: 223,517. Reynolds, H. N. June 2, 1924. Stoppers, screw; stoppers, packing-rings for. -A plug for oil stills, oil tanks, &c. comprises a bushing provided at one end with relatively fine external threads 3 adapted to secure it permanently to the tank &c. 1 and at the other end with relatively coarse external threads 7 of square section and adapted to .receive a closure cap 9. The application of the bush to the tank &c. is facilitated by a polygonal external surface 8 on the bush intermediate its ends. An upstanding packing-ring 14 of soft metal is mounted in a dovetail-section groove 15 in either the bush or the cap and is restrained from sliding in its seat by the engagement of projections on its undersurface with recesses in the groove.
Patent GB-601931-A (GB)
Title: Multi-channel communication system
IPC: H04J3/04
Filed: 1945-11-22
Abstract: 601,931. Thermionic distributers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 22, 1945, No. 31540.' Convention date, July 1, 1944. [Class 40 (iii)] [Also in Group XL (c)] In a nmlti-channel pulse signalling system each channel circuit is fed from a common triangular wave 'generator and comprises a first rectifier passing current at a predetermined voltage level on the input wave and a second rectifier to determine the 'maximum voltage developed by the first rectifier circuit, a pentode valve being operative in the region between these voltage levels which are different for the different channels. In the time-modulated pulse multiplex transmitter described, the sawtooth generator 10 produces a control wave for a plurality of similar channel circuits whose combined output is taken from a common differentiating circuit 23, 24 to an amplifier 13 and thence modulates a radio transmitter 11, 12. In the circuit of channel 1, a biassed diode 14 becomes conducting at a predetermined point of the applied saw-tooth wave, to pass the latter to the grid of pentode 16. At another predetermined point of the saw-tooth wave, the shunt diode 15 becomes conductive to prevent further rise in potential of the pentode grid. At a time after the first incidence of the saw-tooth voltage determined by the modulating voltage applied to its cathode, the valve 16 is arranged to pass rapidly from cut-off to anode current saturation, at which it remains until the saw-tooth fly-back occurs. The rectangular negative-going voltage pulse thus produced at the anode of 16 therefore has a time-modulated leading edge which produces a short time-modulated pulse from circuit 23, 24 for the radio transmitter. The corresponding diodes in the other channels are so biassed that different portions of the control wave are effective for pulse production and the channel pulse trains are thus all of the same recurrence frequency, but interlaced in time. Specifications 582,199 and 584,729 are referred to.
Patent GB-371177-A (GB)
Title: Improved method and means for controlling the vapour content or humidity of air and other gases
IPC: G05D22/02
Filed: 1931-05-07
Abstract: 371,177. Electrically actuated valves. GILL, H. A., 51, Chancery Lane, London.- (Sturtevant Co., B. F. ; Dana Avenue, Hyde Park, Boston, U.S.A.) May 7, 1931, No. 13572. [Class 135.] A valve for the supply of water to a humidifier in a room with a window-pane exposed on one side to a temperature different from that on the other, is controlled by mechanism actuated by the change of intensity of a light beam which is passed several times through the window and film condensed thereon. Mirrors 15, 30 reflect light from a lamp 12 several times through a window 6 on to a selenium cell 16. When the window is misty, current from a cell 16 passing through an amplifier 17 and relay coil 19 decreases, so allowing an arm 21 to be moved by a spring 20 to a contact 22 to close a circuit through a motor 11 for closing a valve 10 in the water supply of a humidifier 7. When the window becomes clear, the current increases and the coil 19 attracts the arm 21, so breaking the motor circuit, the valve 10 then being spring- opened. In place of the motor 11, a solenoid 38 may be energized when the arm 21 is raised to open a water valve against a spring 40. Specification 356,634, [Group XII], is referred to.
Patent GB-1376788-A (GB)
Title: Fibre-reinforced aluminium or aluminium alloy composites
IPC: C22C49/14
Filed: 1972-03-23
Abstract: 1376788 Making fibre reinforced metallic composites NATIONAL AERONAUTICS & SPACE ADMINISTRATION 23 March 1972 [24 March 1971] 13602/72 Heading B3A [Also in Division E1] A method of making a graphite reinforced aluminium or aluminium alloy composite material comprises applying a nickel coating to graphite fibre yam, disposing the yarn in parallel alignment between sheets of aluminium or aluminium alloy matrix material and compressing and heating the resulting assembly until consolidated by diffusion bonding. The graphite fibres are coated by deposition in an electroless nickel bath with a layer of 0À5-0À75 micron thickness. The coated fibres, which are in the form of loosely wound yarn, are stacked with the fibres in parallel alignment and secured by a light coat of liquid acrylic resin. Preferably the assembly is built up to three or four alternating layers of graphite yarn and matrix material in a stack which is then bonded. Greater thickness is obtained by bonding together the required number of the resulting composite sheets. The matrix material is in the form of foil of 1¢ mil minimum thickness and a preferred yarn comprises 840 loosely wound strands each about 6À6 microns in diameter. Bonding takes place at 980-1030 F. for about ¢ hour and no evacuation or atmosphere control is needed.
Patent GB-106219-A (GB)
Title: Improvements in Couplings for Canvas and other Collapsible Hose Pipes.
Inventor: BRALY NORMAN BLYTHE
IPC: F16L31/00
Filed: 1916-09-26
Abstract: 106,219. Braly, N. B. Sept. 26, 1916. Joints with yielding inner pipe or sleeve expanded.-Each section of a collapsible hose pipe, such as a canvas pipe for mine ventilation, is provided at its ends for coupling purposes with a divided ring 11, Fig. 5, flanged at one side 13 and having its ends overlapping in sliding relation, two sections being coupled as shown in Fig. 2 by compressing the ring of one section, inserting it into the end of the other section, and allowing it to expand again. The ring 11 is stitched inside tho material of the pipe and its overlapping ends are provided with pairs of elongated slots 14, 15, which are engaged by projections 16 on a connecting-plate 12. The projections 16 are bent over on the inside of the ring, and thus prevent separation of the ends of the ring while permitting the requisite variation in diameter. At intermediate points, the hose pipe is held in a distended condition by means of bands comprising a grooved inner ring 10, Fig. 4, and an outer wire or ring 6, which clamps the material into the groove on the inner ring and is preferably formed with a hook 9 for suspension purposes.
Patent GB-185392-A (GB)
Title: Safety hair cutting appliance
IPC: B26B21/08
Filed: 1922-05-16
Abstract: 185,392. Michel, F. G. A. Aug. 31, 1921, [Convention date]. Additioni to 180,318. No Patent granted (Sealing fee not paid). Hair-cutting appliances of safety-razor type.- In an appliance of the form described in the parent Scecification, one of the toothed plates has a recess with a curved grooved periphery and the other toothed plate fits within the grooved recess, the two plates being secured by a screw &c. The base of the recess 125 (in the plate 110, Fig. 1), has projecting studs 115 and a tapped hole 116 therein, and grooves 120 and a plain hole 121 are formed in the other plate 117, Fig. 4. The blade is placed over the studs 115, the plate 117 slid along the grooves 120 into the recess 125, and the two plates secured by the screw 100.
Patent GB-573205-A (GB)
Title: Improvements in and relating to beam valves
IPC: H01J31/04
Filed: 1940-09-05
Abstract: 573,205. Thermionic beam valves and circuits therefor. HARRIES, J. H. O. Sept. 5, 1940, No. 13885. [Classes 39 (i) and 40 (v)] In beam valves such as described in Specifications 521,199 and 521,246, the accelerator grid G<2> and a negatively-biassed grid G' between the cathode and accelerator grid are formed of parallel wires arranged so that a ribbon-like beam is formed which when deflected by the focusing and deflecting electrodes D <1>, D<2> moves in a direction parallel to the wires. The beam passes through a high-potential electrode L<2>, a suppressor electrode S, a slot s in the sub-anode SA to an anode T. The double spiral cathode C is as described in Specification 573,206 ; the leads C supporting the cathode carry a mica disc which with plates on the grids G<1>, G<2> and the electrodes L<2>, S have corresponding holes for aligning rods used as described in Specification 573,209. A gauze screen B on the grid G<1> surrounds the cathode. The grid wires are each welded at one end to a ring, the other ends having freedom to expand ; rings g<3>, g4 define apertures for the beam. The sub-anode SA is sealed to glass portions of the envelope E by flanges 5, 6 tapering at the root. The anode may be similarly sealed to a re-entrant part of the envelope and may be cooled. Dimensions and voltages of a construction are given. A circuit arrangement, wherein the tube may act as a frequency changer or the anode bombarded during exhausting consists of two matched triodes T<1>, T2, Fig. 8, whose cathodes are cross-connected to Lecher wires p, q, r, s with slides 18, 19; these are bridged by a condenser 20 and resistances 21, 22 and connected to the junction of resistances 24, 25 and to the anode leads 26 which connect the triodes to the deflection electrodes D<1>, D<2>. High-frequency chokes 27 are in the leads from battery 17 to the cathodes. The beam tube is adjustable for tuning by means as described in Specification 573,208 and power is taken to the dipole aerial 16 from a loop 15.
Patent GB-201306-A (GB)
Title: An improved adjustable mould for manufacturing concrete blocks, slabs, quoins, and the like
IPC: B28B7/02
Filed: 1922-05-17
Abstract: 201,306. Jones, J. E. May 17, 1922. Moulds.-In moulds of the type comprising a head B carrying hinged sides A, A<1> one of which supports a hinged end B<1>, the sides A, A' carry liners C bv means of screwed bolts a fitted with nuts a<1> whereby the liners may be adjusted to and from the sides, interchangeable packing- pieces F being inserted between the sides and liners. The mould may be subdivided by a, central partition D, hinged to the head B and furnished with a handle d<1>, and a transverse partition D<1> halved to the member D. The end B<1> is fitted with a projection b engageable by a catch b<1> on the side A<1>. Tongued and grooved blocks may be formed by end pieces E, E<1> secured to the ends B, B<1>. The sides A, A' are furnished with hooked ends a<2> engaging slots in the head B. The mould is assembled about a pallet G suitably supported upon angle-irons, the pallet being furnished with eyes g<2> to receive a pronged tool for of the blocks after moulding.
Patent GB-1118224-A (GB)
Title: Lubricant stabilization of recovery in the rolling of aluminum and its alloys
IPC: C10M173/00
Filed: 1966-03-29
Abstract: A method for rolling aluminium and its alloys containing at least 70 weight per cent aluminium wherein an oil-in-water emulsion containing an anionic or non-ionic emulsifier or mixture thereof is used as a lubricant and coolant and is filtered and re-cycled for re-use comprises maintaining the hardness level of the aqueous phase of the emulsion within the range of 25 to 400 p.p.m. as CaCO3 and maintaining the pH within the range of 8 to 10 by adidng an alkaline-reacting chelating agent, thereby to stabilize the emulsion so that it will continue to pass through a mechanical filter which retains dirt, metal and metal oxide particles and the oil globules are maintained within a filterable range.  The oil-in-water emulsion may be filtered through a woven metal cylindrical filter tube coated with a siliceous adsorbent. The oil may be a mineral oil. The chelating agent may be an alkali metal salt of ethylene diamine tetra-acetic acid, N-hydroxy-ethylenediamine triacetic acid, diethylene-triamine penta-acetic acid, nitrilotriacetic acid, N-2-hydroxyethyliminodiacetic acid or citric acid or mixtures thereof.  The emulsifier used may be an alkali metal dodecylbenzene sulphonate, alkali metal dodecyl sulphate, a sulphonated fatty amide or alkali metal sulphonated fatty acid salt, or the corresponding triethanolamine salt, or adducts of ethylene oxide with alkyl phenols, primary alcohols or secondary alcohols.ALSO:In an oil-in-water emulsion containing an anionic or non-ionic emulsifier or mixture thereof the hardness level of the aqueous phase of the emulsion is maintained within the range of 25 to 400 p.p.m. as CaCO3 and the pH is maintained within the range of 8 to 10 by adding an alkaline-reacting chelating agent which may be an alkali metal salt of ethylene diamine tetra-acetic acid, N-hydroxyethylenediamine triacetic acid diethylenetriamine pentaacetic acid, nitrilotriacetic acid, N-2-hydroxyethyliminodiacetic acid or citric acid or mixtures thereof.  The oil may be a mineral oil.  The emulsifier used may be an alkali metal dodecylbenzene sulphonate, alkali metal dodecyl sulphate, a sulphonated fatty amide or alkali metal sulphonated fatty acid salt, or the corresponding triethanolamine salt, or adducts of ethylene oxide with alkyl phenols, primary alcohols or secondary alcohols.
Patent GB-543107-A (GB)
Title: Cable terminal
IPC: H02G15/06
Filed: 1940-09-06
Abstract: 543,107. Mounting terminals. GENERAL CABLE CORPORATION. Sept. 6, 1940, No. 13936. Convention date, Sept. 23, 1939. [Class 38 (i)] A cable terminal 3 is sealed into an insulating bushing by an annular connector 6 which is corrugated to provide for expansion and is attached by soldered joints to the terminal and to a metallized surface on the bushing or a metal ring integral therewith. The cable sheath 20 is attached to a bell 13 by a lead packing 14 and a wiped joint 15. The bell 13 fits over the base of the bushing and has an asbestos pad 8 and packing 7 interposed, solder 9 being run in to form a joint between the rim of the bell and a metallized surface on the bushing. At the upper end of the bushing the terminal 3 is surrounded by a flanged cap 30 soldered to the connector 6 by which it is secured with interposed packing 47, 48 to the bushing by the soldered joint 29. The terminal and cap are then united by solder run into a hole 4, a cord 5 wound in an annular groove in the terminal limiting the downward passage of the solder. Alternatively the flanged cap may enclose the top of the terminal onto which it is screwed, the upper periphery of the connector 6 being flared to form with the flange a channel-shaped space to receive solder. Filling openings 16, 24 are closed by screw plugs covered by sealing discs.
Patent GB-1504045-A (GB)
Title: Compressor bleed control for gas turbine power plants
IPC: F02C9/18
Filed: 1975-04-04
Abstract: 1504045 Fluid-flow compressors; gas turbine engines UNITED AIRCRAFT CORP 4 April 1975 [4 April 1974] 13960/75 Headings F1C and F1G The compressor bleed valves 16 of a gas turbine engine are controlled by a steady-state control 10 so as to be open at corrected compressor speeds of up to 60 per cent of the maximum value and to be closed at corrected compressor speed of 70 per cent and above, this control being over-ridden by a control 12 which opens the bleed valves during acceleration or deceleration. The steady-state control 10 comprises a three-dimensional cam 48 which is translated and rotated as a function of compressor speed and compressor inlet temperature. The cam 48 actuates a leak-off valve 22 connected downstream of a restrictor 31 in a line 28, 30, 32 which is connected to the compressor so as to control an actuactor 14 which operates the bleed valves 16. The line is also connected to chambers 70, 72 on opposite sides of a diaphragm 76 of the control 12, a restrictor 74 being interposed in the correction to the chamber 70 whereby change in the compressor pressure during acceleration or deceleration causes a temporary inequality in the pressures in the chambers to displace the diaphragm, thereby opening one or other of two leak-off valves 24, 26 to cause the actuator 14 to open the bleed valves 16. Diaphragms 80, 82 associated with the valves 24, 26 serve, since they are in communication with the atmosphere via the vent passages 92, 94 of the valves, to provide altitude compensation. The effect on the control 12 of the decrease in the compressor pressure which results from the opening of the bleed valves 16 is neutralized, wholly or in part, by a leak-off valve 100 located downstream of a restrictor 108 and closed by a cam 102 on the plunger of the actuator 14 when the bleed-off valves are opened. The rate of change of fuel flow rather than the rate of change of compressor pressure may be used as the controlling factor.
Patent GB-1191602-A (GB)
Title: Fan.
IPC: F04D29/36
Filed: 1968-03-22
Abstract: 1,191,602. Axial-flow fans. PHILIPS' GLOEILAMPENFABRIEKEN N.V. March 22, 1968 [March 25, 1967], No. 13972/68. Heading F1C. An axial-flow fan comprises a wheel in which each blade 1 is pivotable about a radial pivot 13, the pivotal movement being limited by stops defining two reversible working positions of the blades, a mechanizm for reversing the blades to reverse the direction of gas flow, the mechanizm comprising for each blade a resilient element engaging the pivot in one of two interchangeable eccentric positions corresponding with the working positions, a central port 3 being connected to the resilient elements for reversal of the eccentric positions of the resilient elements. In the embodiment shown, each resilient element comprises a pin 7 resiliently pressed by a helical spring 6 against a tumbler 10 on the pivot 13. When the part 3, which is in the form of a disc, is turned manually to move each pin 7 from engagement with one arm 11 of the tumbler 10 to engagement with the opposite arm 12, or vice versa, each blade is thereby turned so that the direction of flow imparted to the air is reversed. In another embodiment, Fig. 4 (not shown), the springs 6 and pins 7 are replaced by leaf springs (16).
Patent GB-129853-A (GB)
Title: Improvements in Electric Cut-outs.
Inventor: RAILING ADOLPH HARRY
IPC: H01H85/24
Filed: 1918-08-29
Abstract: 129,853. Railing, A. H., Garrard, C. C., and Wilson, W. Aug. 29, 1918. Fusible cut-outs.-An electric cut-out of the plug type, carrying a cartridge fuse, Fig. 5, has two split tubular contacts C, E arranged concentrically on a base A covered by a cap H; the cartridge fuse is carried by a tube I in a head J which may be arranged to exhibit an indicator through a glazed opening P. The top contact N of the cartridge engages the flanged head of the tube I and the cartridge may be held by a friction tongue I<1>. The tube I engages the outer contact E. which may be only part circular but carries bayonet slots G co-operating with pins K on the tube I. The lower pin 0 of the cartridge engages the inner contact C, which is fixed in a central recess B, and with the pin 0, may have varying sizes to prevent interchanging of fuses of differing ratings.
Patent GB-239593-A (GB)
Title: Improvements in tooth and nail brushes
IPC: A46B7/04
Filed: 1924-06-10
Abstract: 239,593. Lazarus, S. A. June 10, 1924. Handles with recessed-back retaining-devices for brushes. -In a tooth or nail brush of the kind described in Specification 218,095, the axial support for the bristle member is adapted to be secured against rotation in one of its bearings. As shown, the shaft c of the bristle member b is formed at one end i of polvgonal cross-section and at the other end j is circular. Corresponding bearings h, g are formed on lugs f, e projecting from the handle d. The shaft c in one position is prevented from rotation, but on being detached, reversed end for end and replaced it becomes free to rotate.
Patent GB-217032-A (GB)
Title: Improved means for hanging curtains
IPC: A47H13/01
Filed: 1923-05-29
Abstract: 217,032. Horton, W. T., and Cassey, W. May 29, 1923. Clips, flexible-jaw.- A clip for suspending curtains of the kind comprising a bow or arch a with a similarly shaped spring d one arm of which is acted upon by a bent lever b carried by the bow a, is provided with a swivelling hook f passing freely through holes in the top of arch a and spring d and provided with a head f<1>. The hook may be bent to form a small ring f<2> the end f<3> forming a stop above the clip.
Patent GB-785653-A (GB)
Title: Improvements in or relating to yarn carriers for full-fashioned hosiery knitting machines
IPC: D04B15/54
Filed: 1955-05-17
Abstract: 785,653. Knitting-machines. SCHOB, E. G. May 17, 1955 [May 18, 1954], No. 14188/55. Class 74 (2). The yarn guide for a straight-bar machine comprises a finger 5 to which is secured a member 6 similar to a sewing machine needle and which is pointed and provided with an eye 10 near its end. The yarn extends to the needles of the machine through the eye 10. The provision of a fine yarn guiding member 6 enables two members to be secured to the finger 5 where it is desired to feed two yarns and the two members may be accommodated within the space between two adjacent sinkers, Fig. 4.
Patent GB-744260-A (GB)
Title: Improvements in and relating to knitted tubular elastic fabrics
IPC: D04B1/26
Filed: 1953-05-20
Abstract: 744,260. Knitting. CLAY, P. E. F. June 16, 1954 [May 20, 1953], No. 14198/53. Drawings to Specification. Class 74 (2). By means of a two-feed machine, alternate courses of a tubular elastic fabric, e.g. a stocking, are knitted of an elastic yarn tending to twist clockwise and the intervening courses of an elastic yarn tending to twist counter-clockwise. Tendency for the fabric to twist and streakiness are thus minimized. Each yarn may comprise an elastic core wrapped, the one clockwise and the other counter-clockwise, with a single helical covering of a thermo-setting, or thermo-plastic yarn, particularly nylon, the core having an initial diameter of, say, 0.008 inch, being stretched during the wrapping so that the resultant yarn has a diameter not exceeding 0.005 inch. The wrapping may be of 15-60 denier. At one feeding position there are provided known picker mechanism and interchangeable feeders, the one supplying one of the elastic yarns during round and round knitting and the other an inelastic textile yarn during reciprocating knitting of heel and toe pouches. The leg and foot of a stocking are knitted of the elastic yarns and the welt, e.g. an inturned welt, at one or both feeding stations, of textile yarn or elastic yarn or yarns. The leg may be shaped by controlling the feeding tension of the elastic yarns or by means of known stiffening mechanism. Two lines of mock fashioning marks may be provided in the leg.