baber/WOPTO huggingface dataset:
Patent GB-686129-A (GB)
Title: Improvements in or relating to porous metal plates
Inventor: WILSDON SIDNEY CHARLES
IPC: B22F3/11
Filed: 1950-06-13
Abstract: 686,129. Making gratings, porous plates, &c. METAL & PLASTIC COMPACTS, Ltd. June 12, 1951 [June 13, 1950; July 11, 1950], Nos. 14680/50 and 17275/50. Classes 83 (ii) and 83 (iv). Powder metallurgy.-A comparatively large porous metal plate for use for example in a filtering or transpiration cooling plant, is made by compacting and sintering metal powder to form a number of plates, repressing and resintering the plates to increase their strength and then joining two or more plates by buttwelding. The powder is preferably stainless steel of between 30 and 300 mesh or if greater uniformity is required, of between 100 and 300 mesh. Compacting is at 5-35 tons per square inch, sintering at 1150-1300‹ C., repressing at above 2.5 tons per square inch and re-sintering also at 1150-1300‹ C. In a specific example stainless steel powder containing 15 per cent ammonium bicarbonate was compacted at 10 tons per square inch and sintered in a non-oxidizing atmosphere for one hour at 1150‹ C., repressed at 5 or 10 tons per square inch and re-sintered for one hour at 1300‹ C. Such plates may be butt-welded by the argon arc or the atomic hydrogen arc methods. In a modification the plates are repressed only near the edges, and to facilitate this the original compacting mould may be shaped so as to give a plate which is thicker towards its edges. Strengthening material such as wire gauze may be included in the compact. The plates may be subjected to a gaseous treatment for the diffusion of chromium before or after the repressing. Specification 665,292 is referred to.
Patent GB-167631-A (GB)
Title: Improvements in transmission gear providing automatic compensation for variations in the speed and/or power transmitted
IPC: F16H61/662
Filed: 1920-05-31
Abstract: 167,631. Spencer, K. T., and Wills, L. G. May 31, 1920. Variable-speed friction gearing is operated automatically by a spring or the like. An idler c connecting driving and driven discs A, B, which partially overlap, is carried on a spindle D supported at one end in a ring E. As the power transmitted varies, the spindle D moves angularly under the control of spring &c. G. As long as the roller C is oblique, it will be slid along its shaft by the action of the discs, so varying the speed. In a modification, discs coaxially arranged are connected by a pair of idlers on a movable spindle.
Patent GB-547651-A (GB)
Title: Apparatus for cleaning the surface of anodes
IPC: C25C7/00
Filed: 1941-11-18
Abstract: 547,651. Cleaning metals. EVERY, C. E. (Hudson Bay Mining & Smelting Co., Ltd.). Nov. 18, 1941, No. 14842. [Class 82 (ii)] [Also in Group XXXVI] Surface coatings produced during electrolysis are removed from anode plates J, e.g. of lead or lead alloy, of the type employed in the recovery and refining of zinc, by immersing them for about five minutes in hot water in a tank A, the plates being then slowly raised to withdraw them from the tank, and the wash water being removed from the tank through pipe I and pumped through jet arms 19 connected to the mains C, D, so as to spray both faces of the plates at an angle of about 45 degrees as they rise. The entrance to the pipe I removing the wash water is separated from the main part of the tank by a screen B to prevent matter removed from the plates from circulating through the pump. The supply mains C, D, which are connected to glands 10, 11, are rotatable in the framework G so that the jet arms can be turned up as shown in Fig. 4 to facilitate the introduction of the plates ; these arms are fitted with spray-covers 20. The mains C, D can be given a lateral reciprocating movement about the pivot 17 of the framework, a coupling bar H connected to the pipe branches 13, 14 having a slot 18 adapted to receive a roller in known manner to effect this movement.
Patent GB-145250-A (GB)
Title: Improved process for the production of plates and sheets by electrodeposition
IPC: C25D1/20
Filed: 1919-06-12
Abstract: 145,250. Coles, S. O. Cowper-. June 12, 1919. Electrodes; moulds; supporting electrodes; preparing surfaces; treating after electrolysis.-Metal plates or sheets are deposited on a cathode consisting of a metal plate e fitted within a frame g which is insulated round its edges and part of its faces, so that the deposit covers the plate and part of the frame, and can be removed by detaching the frame. As shown, the cathode is doublesided and is fitted with an inner frame h and an outer frame g. The plate is recessed at the edges or made up from three layers d, e, f as shown so that the surfaces of the plate and frames are level; the frames may, however, project beyond the surfaces of the plate. A gap may be left between the plate and frames so as to produce lines of cleavago in the deposit; if these are not required, the gap may be stopped with wax. Lugs c project from the plate through notches in the frames, and lugs or flanges may also be provided on the frames so that they can be forced apart; the flanges may be of streamline form. During removal of the frames, the plate may be held by a sucker. The frames may be secured to the plate by pegs. A wooden or other frame i serving as insulation may also be of streamline form and may be pegged or sprung on. The plate may be covered with a stripping composition or with silver or nickel, sulphurized or oxidized.
Patent GB-1536811-A (GB)
Title: Tuyeres
IPC: C21C5/34
Filed: 1977-04-07
Abstract: 1536811 Protecting tuyeres CREUSOT LOIRE 7 April 1977 [28 April 1976] 14914/77 Heading C7D [Also in Division F4] In a steelmaking converter the oxygen blowing tuyeres are protected by supplying a protective liquid which contains hydrocarbons to peripheral passages in each tuyere and varying the rate of flow of the protective liquid during identifiable stages of the steel making process. In one embodiment of the invention the rate of flow of protective liquid may be at a reduced rate, normal rate or excess rate. The normal rate being that required for a satisfactory tuyere service life if a constant flow of protective liquid is used throughout the refining process and is in the range 0À08 to 0À15 litres per minute per centimeter of the mean circumference of the peripheral passages in each tuyere. The reduced flow-rate is from 0À4 to 0À6 times the normal flow-rate, and the excess flowrate is from 1À5 to 2 times the normal flow-rate. With embodiments of the invention when powdered material such as lime or limestone above a certain pre-set value are introduced with the oxygen the flow-rate of protective liquid in the refining stages is reduced. The pre-set value is 3Kg of powdered lime or 1À5 Kg of powdered limestone per cubic metre of oxygen, and the flow-rate of protective liquid is reduced in linear relation to the ratio between the pre-set value of powdered material and the actual amount of powdered material.
Patent GB-855891-A (GB)
Title: Machine for convoluting tubing
Inventor: NOVEMBER MILTON H
IPC: B21D15/10
Filed: 1959-05-01
Abstract: 855,891. Making corrugated tubes; stamping. BREEZE CORPORATIONS Inc. May 1, 1959, No. 14921/59. Classes 83 (2) and 83 (4). A machine for convoluting thin-walled tubing comprises a first die-supporting head 28 carried on a base support member, a second die-supporting head 27 slidable relative to the first die head, a plurality of die members carried by the first and second heads, openings in the die heads to receive a length of tubing 21 extending therethrough, a nozzle 41 for introducing fluid under pressure to the interior of the tubing disposed between the die heads, means for displacing the die members towards and away from the tubing and means for displacing the second head towards the first head to compress the tubing therebetween and to advance the tubing through the machine. The convoluting section of the machine is mounted within a trough 12 carried by a table 10. The tubing 21 is supported as it leaves the die-heads on an adjustable guide 16. A pipe 18 coaxial with the tubing supplies hydraulic fluid to the nozzle 41 which is longitudinally adjusted within the tube by means of a hand wheel 22. The nozzle is provided with sealing rings 46 and backing up rings 48 on each side of an orifice 50 through which the pressure-fluid passes to bulge the tube. The die-head 27 is slidably carried on guide pins 29 secured to the die-head 28 and the head 27 is reciprocated by an hydraulic cylinder 30 through levers 31-33. The dies 36 (Fig. 2), are secured to blocks 37 slidably carried within the head 28 and coupled to hydraulic cylinders 38 by rods 39. The cylinders are controlled by micro-switches 40. The complementary dies 42 (Fig. 3), are secured to blocks 45 attached to the head 27 and slidably carried by guide pins 44. In operation, when the tube has been placed in the machine, hydraulic fluid is fed to the nozzle to bulge the tube as in Fig. 5 after which the die-head 27 is urged towards the die-head 28 to form a convolution (Fig. 3). The die-head 27 is advanced together with the die-head 28 against the action of a spring 51 after the forming operation to feed the tubing through the machine to the next forming position. Thereafter, the hydraulic cylinders 38 are operated to open the dies clear of the formed tubing and the fluid pressure within the tubing is reduced. The spring 51 then urges the die-heads back to the position where they first came into contact after which the cylinder 30 is actuated to separate the diehead 27 in readiness for the next forming operation. A plurality of convolutions may be formed in one cycle of the machine by providing two die sets 55 and 56 on the forming head 27 and two die sets 57 and 58 on the die-head 28 (Fig. 6). The die sets are linked together by guide pins 59, 60 and urged apart by springs 61.
Patent GB-553504-A (GB)
Title: Improvements in mufflers for the exhaust of aircraft and other engines
IPC: F01N3/05
Filed: 1941-11-20
Abstract: 553,504. Exhaust silencers. VEQUE, H. E. LE, and LITTLEFIELD, [nee HILL] M. Nov. 20, 1941, No. 14932. [Class 7 (ii)] [Also in Group XXXIII] The exhaust of aircraft or vehicle engines is led by pipes 8 to a casing 1, through the centre of which air passes by means of tubes 5, 7 leading to the outlet 3 and arranged with spaces at 12, 13 through which the gases are drawn. Perforated baffles 10 are provided in the casing, and apertures may also be formed in the casing at 14. In aircraft the silencers may be arranged within the wings, or underneath the fuselage, and in the former case the upper and lower walls of the silencer may be coincident with the wing surfaces.
Patent GB-617187-A (GB)
Title: Improvements in electric discharge tubes and circuit arrangements therefor
IPC: H03D7/10
Filed: 1946-05-17
Abstract: 617,187. Thermionic valves. PHILIPS LAMPS, Ltd. May 17, 1946, Nos. 14968 and 14969. Convention dates, Aug. 5, 1939, and April 9, 1940. [Class 39 (i)] In a mixer valve with at least five electrodes between the cathode and anode, reckoning from the cathode the first, fourth, fifth and if present the sixth electrode are constructed as-grids, the third consists of a small number of rods or plates 5, Fig. 1, while the second is a number of rods or plates 4 arranged to ensure uniform spreading of the electrons. The capacity between the first and fourth electrodes added to the capacity between the third and fourth electrodes is adjusted to be about equal to the capacity between the second and fourth electrodes. The first two electrodes 2, 4 constitute the local oscillator, the plates acting as the anode and concentrating the electrons into a beam or beams depending on the valve arrangement. Electrons returning from the control grid 6-the fourth electrode-are taken up by the plates 4. The rod electrode 5 is directly connected-inside or outside the valve-to the first grid and the sixth suppressor grid 8 to the cathode 1. The electrode 6 is connected to the input circuit. To prevent electron oscillation between the first grid and local oscillator anode, the latter is constituted by four rods 3, Fig. 3; two rods 4 are placed in front of the rods 5 forming the third intermediate electrode and are connected to these rods 5 and to the first grid 2. The two sets of rods 4, 5 may be replaced by plates extending between the rods 3. The rods 4 may be connected to the cathode. The subject-matter is identical with that of Specification 550,104.
Patent GB-420082-A (GB)
Title: Improvements in or relating to chain belts
IPC: F16G5/18
Filed: 1933-05-24
Abstract: 420,082. Driving belts ; chains. REYNOLDS, C. H., 7, Rusthall Avenue, Bedford Park, Chiswick, London. May 24, 1933, No. 14975. [Class 80 (i)] [See also Group XXV] Relates to a chain belt of the type in which capsules 1 holding pads 3 of leather or the like are mounted on opposite sides of a flat-link roller chain. According to the invention, the capsule is of circular form with a substantially continuous inturned edge 2 to hold the pad. A portion 2<a> of the edge of the capsule may be cut away to clear the face of the pulley. The capsules 1 are spaced apart by the shouldered pivot pins of the chain.
Patent GB-612199-A (GB)
Title: Improvements in and relating to electric switches of the push type
IPC: H01H13/02
Filed: 1946-05-17
Abstract: 612,199. Retractive switches; distortable container switches. RHYS, G. O. May 17, 1946, No. 15017. [Class 38 (v)] In a push switch, contacts 5, 6, carried by an insulating base 3, are bridged by a contact 9 carried by an insulating push-member 2, which is separated from the base 3 by a tubular resilient member 1, e.g. of rubber. The members 2, 3 are preferably corrugated where they engage the ends of the member 1, and held in position by. ferrules 11, or pinch rings, Fig. 5 (not shown), so as to form an air-tight or gas-filled contact-chamber 4. The member 2 may have a flange engaging the inner surface of a cover in order to guide the press-button, the member 3 having its flange omitted and being held in the cover by a split ring, Fig. 2 (not shown). In Fig. 3 (not shown), the member 3 is screwed into a cover which has a flange non-rotatably engaging a mounting ring, and in Fig. 4 (not shown), the cover is externally threaded to receive a nut for flush mounting on a panel. The cover may alternatively be formed of a spun metal tube having shoulders 12p, 12q for the push 2 and base 3, respectively, and a retaining flange 12r, Fig. 6. The switch may also be used as a change-over and/or a double-pole switch, Figs. 7, 8 (not shown).
Patent GB-1140432-A (GB)
Title: Improvements in flame spray metallising apparatus
Inventor: EBURN WILLIAM HENRY
IPC: B05B7/20
Filed: 1966-04-05
Abstract: 1,140,432. Coating with metals. INTEGRONICS Inc. April 5, 1966, No. 15130/66. Heading C7F. [Also in Division B2] A multiple head flame spray metallizing apparatus comprises a manifold block having longitudinal passages 12, 14, 16 for conveying oxygen, fuel gas, and air, respectively to the nozzle 24, a series of transverse bores containing the nozzles having wire guides 44, and spring-loaded feed rollers 76, 78, driven at the same rate from a common drive, to feed the wires through the nozzles. The assembly is moved parallel to the workpiece by lead screws at the ends of the manifold (see Fig. 1, not shown). The spray heads are so mounted that they overlap part of the adjacent coated area.
Patent GB-637949-A (GB)
Title: Improvements in or relating to holders for thermionic valves, plugs or other electrical devices provided with projecting prongs
IPC: H01R33/76
Filed: 1948-06-04
Abstract: 637,949. Holders for discharge tubes ; twopart couplings. CINCH MANUFACTURING CORPORATION. June 4, 1948, No. 15159. Convention date, June 5, 1947. [Class 38 (i)] A one-piece valve holder comprises an insulating body 10 having a contact entry aperture 15 and opposed to the aperture 15 a recess 16 for a contact 20, the recess being provided with a radial slot 17 having a shoulder 18 over which a wing 22 of the contact snaps while a second contact wing 23 projects beyond the body 10 so that a connecting wire may be secured thereto. The contact is formed from a split tube 21 which has yielding sections 25 and the wings 22, 23 normally diverge from each other, Fig. 8, and are pressed together when the contact is inserted in its recess 16.
Patent GB-974049-A (GB)
Title: Stripping tool
IPC: H02G1/12
Filed: 1962-04-19
Abstract: 974,049. Pliers. W. JACKSON. March 27, 1963 [April 19, 1962], No. 15161/62. Heading B4W. [Also in Division H2] A pliers-like tool for stripping insulation from wire has two pairs of jaws both of which grip the insulation and then move apart to rupture it. A shown, the top two jaws 15, 16 are attached respectively to handles 20, 21, and the bottom jaws are each pivoted at 27, 28 to the corresponding upper jaw. Jaws 13, 14 are attached to extensions 25, 26, the ends of which terminate in a stirrup 30 on which is mounted a handle 10. A spring 31 normally holds the upper jaws away from the lower. When handle 10 is closed on handles 20, 21, against the action of spring 31, both pairs of jaws 13, 15 and 14, 16 grip the insulation. Handles 20, 21 are then brought together against the action of spring 33. Each pair of jaws then separates from the other to rupture the insulation. The outside of the jaws where the cable is gripped may be recessed.
Patent GB-752076-A (GB)
Title: Weakly basic low molecular organic sulphur compounds and the production thereof
IPC: C07C381/12
Filed: 1953-06-01
Abstract: New compounds having weakly basic properties are obtained by the action of alkaline solutions with heating on triaryl sulphonium hydroxide compounds having at least one alkoxy group on an aryl group; the same products are obtained by the action of sulphur dioxide, a thionyl halogenide, a halogenide of an aryl-sulphunic acid, or a diaryl sulphoxide on an alkoxyaryl compound, or a dialkoxyaryl sulphoxide on a hydroxyaryl compound, and converting the resulting salt into the base at a temperature above that at which tertiary sulphonium compounds are normally formed, but lower than that at which decomposition of the products occurs.  In examples the similar weakly basic products are obtained by heating trianisyl sulphonium hydroxide in caustic soda solution; and by heating anisole and thionyl chloride or sulphur dioxide together with AlCl3 at 70 DEG C.; and also by the action of dianisyl sulphoxide on phenol; the hydrochloride is isolated and forms a crystalline complex with HgCl2; phenetole may also be used in place of anisole.  Specification 757,390, [Group IV (a)], is referred to.
Patent GB-1331532-A (GB)
Title: Electroplating device
IPC: C25D17/26
Filed: 1971-05-17
Abstract: 1331532 Electro-plating drums L MAUS [trading as LANGHEIN & CO] 17 May 1971 [11 Feb 1971] 15240/71 Heading C7B A perforated pendulum drum 12 for electroplating workpieces is mounted on a carrying frame 10 so as to be pivotable to and fro and comprises plastic wall parts 15, 16 fastened to longitudinal strengthening bars 19 defining a filling and emptying aperture 14, each bar partly enclosing pairs of cathode contact rods 18 connected to a current supply, and end walls 20 to which the wall parts and bars are also fastened. The wall parts may be braced by ribs 23 and bars 24 attached to the drum which encloses the wall parts.
Patent GB-456413-A (GB)
Title: Improvements in advertising and display apparatus
IPC: G09F11/06
Filed: 1935-10-17
Abstract: 456,413. Moving signs. DARBY-WADE, Ltd., Australia House, Strand, and YOUNG, C. R., 67, Cobden Road, South Norwood, both in London. Oct. 17, 1935, No. 15281/36. Divided out of 452,519. [Class 3 (i)] In advertising and display apparatus of the falling leaf type, in which a cage carries the leaves on detachable rods retained in end plates, the cage being intermittently rotated by a ratchet wheel 22a fixed thereto and a pawl 36 through the medium of a lever 34 continuously oscillated bv a cam 33 rotated by an electric motor 30, the motor 30 and cam 33 are bodily removable as a unit. The face plate 39 of the motor has a flange which at one side fits into a recessed lug 41 on the cage-carrying panel 38 and at the other is attached to the panel by screws 42. The motor leads 45 are plugged into a fixed socket 44, and the motor pinion 31 and cam 33 with its pinion 32 extend through an aperture 40 in the panel 38.
Patent GB-1413903-A (GB)
Title: Demodulation device
IPC: G11B20/06
Filed: 1973-03-30
Abstract: 1413903 Frequency demodulators; angle modulated systems TED BILDPLATTEN AG AEG-TELEFUNKEN TELDEC 30 March 1973 [1 April 1972] 15400/73 Headings H3A and H3R In an angle modulated system, a frequency or phase demodulation device comprises a high pass filter 5 connected between a limiter 4 which does not completely symmetrically limit the signal fed to it and a frequency demodulator 6. The demodulation device may be used in the reproduction of video signals from a transducer 1 which may be subjected to temporary signal breaks. The demodulator 6 may be a delay demodulator with the modulated carrier applied via a delay and a direct path to a ring modulator with the demodulation being dependent on the zero-axis cross-overs of the modulated carrier. Due to the design of associated circuitry, the limiter 4 produces insufficient limitation resulting in waveform asymmetry and a displacement of the crossovers which is smaller for one half signals and larger for the other half signals especially noticeable with signals of diminished amplitude resulting from signal breaks (Fig. 1, not shown). The high pass filter 5 has a limiting frequency below the lowest lower sideband of the modulated carrier for minimizing the effects of the breaks or disturbance signals having low frequency components. In Fig. 2, elements 2, 7 are pre-amplifiers and device 3 is a high pass filter producing clamping of low frequency disturbances. The demodulated output is applied to an electron beam tube 8.
Patent GB-810321-A (GB)
Title: Improvements in or relating to electron discharge valves
IPC: H01J21/06
Filed: 1956-05-17
Abstract: 810,321. Thermionic-cathode tubes. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. May 17, 1956 [May 20, 1955], No. 15401/56. Class 39(1). A thermionic valve having an indirectly heated cathode with at least two lead-in conductors, a control grid, at least one other grid electrode, an anode, and screening means for the electrodes housed within an evacuated vitreous bulb is provided with lead-in conductors for the electrodes arranged around the base of the bulb in two groups, one pair of adjacent ends of groups being separated by a gap larger than any between adjacent conductors within the groups and the other pair of adjacent ends of the group being separated by a neutral zone including at least one leadin conductor supplying current to the cathode heater, one of the groups comprising the anode lead-in conductor and conductors correlated with it, and the other group comprising the control grid lead in and correlated conductors. The invention is applied to the pentode shown in Fig. 1 comprising a cathode 6 with a heater having leads 18, 19 ; control, screen and suppressor grids 10, 11, 12, anode 9 and shield 13, the electrode leads being arranged as shown in Figs. 3, 4 or 5 where C 1 , Cz, Cs are leads to the cathodes, G 1 , G 2 , G 3  are leads to the control, screen, and suppressor grids, A the anode lead. S the shield lead and Fi, Fz the heater leads.