baber/WOPTO huggingface dataset:
Patent GB-373017-A (GB)
Title: Process and apparatus for the heat treatment of bodies produced at high temperatures
Filed: 1931-08-18
Abstract: Alloy steels containing a precipitation hardening element, e.g. Cu Ti B Zr during cooling from a high temperature, e.g. the working temperature, are maintained at a predetermined temperature (200-800 DEG  C.) to increase the hardness and strength by precipitation hardening.  The cooling apparatus may be as described in Specification 358,785.  In the case of copper alloy, the alloy is allowed to cool from its production temperature to 500 DEG  C. and then maintained at 500 DEG  C. for a few hours.  The parts may be fed in on a conveyer to the cooling bed with insulated bottom and heat protecting hood.  The sections may be covered with sand &c. as desired.  After hardening rapid cooling by air, steam, or water may be used and gas burners and fresh air inlets for heating or cooling any part locally is provided, e.g. a steel containing 0,17 per cent C, 0,38 per cent Si, 1,2 per cent Mn, and 0,75 per cent Cu was slowly cooled from the rolling temperature down to 450 DEG  and kept there for 20 hours and was then quickly cooled to hand temperature.
Patent GB-660629-A (GB)
Title: Improvements relating to snap action electric switches
IPC: H01H23/08
Filed: 1949-09-08
Abstract: 660,629. Snap-action switches. HOOVER, Ltd. Sept. 8, 1949. [Sept. 16, 1948]. No. 23248/49. Class 38 (v). In a snap-action switch the mechanism is housed in a cavity 12 formed partly in each of two parts 10, 11, of a moulded casing and terminal strips extend outwards from the fixed contacts 17 through recesses in a wall of one or each part of the casing, on either side of an insulating spacer 2S which separates the strips. The fixed contacts 17 are adapted to be bridged by a contact spindle arranged between the two side limbs 15 of the moving contact member. The recesses through which the terminal strips extend are partly occupied by bosses 25 which pass through holes 24 in the strips and the two parts 10, 11 of the casing are held together by rivets 34, 35, the rivet 34 passing through holes in the bosses. In a modification, Figs. 3-5 (not shown) the two terminal strips differ from each other in shape and respectively pass out of the casing through two slots formed in one only of the two halves of the casing. Portions of the insulating spacer also enter these slots and hold the strips in position when as before the halves 10, 11 are held together by rivets. Specification 660,630 is referred to.
Patent GB-351296-A (GB)
Title: Method and apparatus for the saturation of superheated steam
IPC: F22G5/12
Filed: 1930-08-01
Abstract: 351,296. Steam superheaters. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Aug. 1, 1930, No. 23294. Convention date, Aug. 1, 1929. [Class 55 (ii).] Superheated steam passed through a distributing pipe 1 into water in a container 2 is obstructed as it rises in bubbles through the water by screens 3, upon which may be placed layers of balls, rings or other filling bodies 4. A further screen supporting filling bodies may be placed in the steam space in front of the outlet 6 for the saturated steam. Superheated steam may be admitted to the steam space of the container through an inlet tube 5. The external cooling surface of the container may be enlarged by the provision of ribs or the like.
Patent GB-201065-A (GB)
Title: Improvements in or relating to smokers' ash-trays and like receptacles
IPC: A24F19/00
Filed: 1922-08-28
Abstract: 201,065. Keevil, J. J. Aug. 28, 1922. Ash - trays. - A glass, metal, composition, or other ash-tray is formed with concave inner surfaces 2, 3 connected by an aperture 4, so that it may be emptied by inverting. The base is closed by a bottom plate or by a tray or drawer, and an aperture may be provided to facilitate swilling with water. The aperture 4 may have a central hole formed with indentations for a pipe bowl. Indentations mav also be formed in the upper rim to take a cigarette, cigar, or pipe stem.
Patent GB-974798-A (GB)
Title: Paper-making machine dandy roll driving apparatus
Inventor: CAMERON ANTONY DUNCAN
IPC: D21F7/02
Filed: 1963-06-12
Abstract: 974, 798. Paper-making apparatus. WOOLLARD & HENRY Ltd. June 12, 1963, No. 23313/63. Heading D2A. [Also in Division G3] Driving apparatus for the dandy roll 31 of a paper-making machine comprises a motor 11, a drivable connection between the roll 31 and motor 11, and adjustable spring means for imposing a reacting torque in the drivable connection so as to cancel a drag torque set up in the drivable connection due to relative motion between the roll 31 and the wire cloth. The spring means comprises springs 28 (Fig. II) attached to the bottom of a bracket 25 pivoted at 26 and on which are mounted as part of the drivable connection toothed wheels 19, 20, connected by internally toothed belts 23, 24 to toothed wheels 18, 21. If the drag torque on bracket 25 is not cancelled by the force of springs 28, the bracket will pivot from its vertical position, thereby actuating a micro-switch 27 to complete an electric circuit to servomotor 16 which will vary the output speed of a continuously variable speed output device 15 to produce the requisite torque. Thus the speed of the roll will follow the speed of the wire, if the latter speed varies, while by altering the tension in one of the springs 28 a change in the relative motion between the wire and roll can be obtained.
Patent GB-438816-A (GB)
Title: Improvements relating to a protective treatment of metals and alloys
IPC: C23C22/78
Filed: 1934-08-13
Abstract: Metals which are to be coated with a surface layer of phosphate G  by treatment with phosphoric acid or a solution of phosphates are subjected to a preliminary treatment by immersion for a period of from a few seconds to a few minutes in a dilute solution of a copper salt, e.g. the sulphate, or a nickel salt, or a solution containing both a copper salt and a nickel salt.  The metal may be given a treatment in a solution of a zinc salt prior to the treatment in the copper or nickel salt solution or a zinc salt may be added to the solution of the copper or nickel salt.  An electric current is preferably employed to hasten the action, the article being made the cathode.  The conditions of the preliminary treatment are such that no definite plating is formed, but the metal is given a smooth surface which improves the adherence of the phosphate coating.  When a preliminary treatment in a zinc salt solution is employed a solution containing zinc sulphate, common salt, boric acid, aluminium sulphate, and dextrine may be used.  The phosphate coating may be formed by using a bath of phosphoric acid or iron phosphate with or without metallic iron.  Other phosphates such as chromium, nickel, or copper phosphate may be added to the bath.  After the phosphate coating has been formed the treated metal may be immersed in oil at ordinary or at elevated temperature.  According to the first Provisional Specification an electric current may be used during the phosphate treatment and according to the second Provisional Specification the preliminary treatment may comprise the deposition of any metal, e.g. zinc, either by electrolysis or by simple immersion.
Patent GB-477061-A (GB)
Title: Improvements in or relating to anchorages for securing bolts or the like in anchor holes
IPC: E21D21/00
Filed: 1936-08-25
Abstract: 477,061. Bolt sockets. NATIONAL LEAD CO. Aug. 25, 1936, No. 23333. Convention date, Dec. 20, 1935. [Class 89 (i)] An anchorage for a bolt in a socket is pro. vided by an enlarged head co-operating with an obturating ring and a third member acting as a lead seal. The bolt head 4 is provided with a ring 2 having a conical surface which may be corrugated, and over this sits an obturating ring 1 having a corresponding conical surface and being adapted to spring or yield on being forced over the head 2 so that its outer periphery contacts with the wall of the hole 5. The obturating ring 1 may be partly driven home or entirely driven by a lead ring 6 which is forced into position to seal entirely the space between the bolt 3 and the walls of the hole 5. In order that the ring 1 may yield without breaking on its exterior, it may be initially slotted as at 10 in a partly tangential direction. The conical space 2 may be integral with the nut head 4 or separate. When separate, the parts 2 and 6 may be initially fitted together so as to be supplied as a unit.
Patent GB-734941-A (GB)
Title: Improvements in or relating to augers for boring holes in the ground
IPC: E21B7/02
Filed: 1952-09-17
Abstract: 734,941. Earth-boring augers. GRIST, G. Sept. 15, 1953 [Sept. 17, 1952], No. 23377/52. Class 85. An earth-boring auger-supporting cantilever structure is so supported, for movement with respect to, a vehicle chassis that the auger may be moved vertically and slewed about a vertical axis by the structure. Mounted on a wheeled carriage 10 is a turntable 11, 13 and 14, and on the part 14 thereof are secured two parallel plates 16, each 'plate pivotally supporting a pair of parallel links 19, 20 of equal length. Each pair of links 19, 20 is pivotally connected to a link 21 carrying a bracket 24, and the brackets 24 support the trunnions 25 of the drive head 26 of the auger 67, said head being rotatable about the axis of the trunnions by a hand-actuated rack and pinion mechanism. The auger is raised and lowered by hydraulicallyactuated, piston-cylinder motors and a cable mechanism, whilst the cantilever structure is moved vertically by cables 69 and winch 72. A support 66 extends downwards from the cantilever structure to engage the ground during boring operations. A chain drive 36, 39 and 43 transmits power from an engine 15 on the turntable to the drill head 26. The Provisional Specification describes also a drill head in which is included a driving motor.
Patent GB-240182-A (GB)
Title: Improvements in or relating to electric railway signalling
IPC: B61L23/16
Filed: 1925-09-19
Abstract: 240,182. Siemens & Halske Akt.-Ges. Sept. 20, 1924, [Convention date]. Electrical systems, automatic.-In an alternating current track-relay system in which one relay winding is supplied from the track rails so as to be short-circuited by a vehicle in the track section, and an auxiliary phase is supplied to another winding under control of traffic conditions ahead, the auxiliary phase winding of the relay in one track-section is placed in series with the " stop " signal lamps of the section ahead when those lamps are energized owing to traffic conditions. By this arrangement, when a relay has been de-energized by passage of a vehicle to energize the " stop " signal of the corresponding section, the relay only returns to normal condition to give a " clear " signal when the vehicle has passed into the next section ahead if the " stop " signal of the section ahead is energized. The track rails are divided into insulated sections, the winding 17 of track relay 2 being fed from mains 30 over transformer 16 and rails of section 9. With the parts in the line-clear position shown, auxiliary winding 24 of relay 2 is fed from transformer 19 over wire 26, front contact of relay contact 6, winding 24, wires 23, 22, earth 11, wire 21. Relay 2 is thus energized and holds up its contacts 5, 6, 7, and a relaycontrolled contact 15 is held to the right as shown. '' Clear " signal lamps 4 are energized from transformer 19 over tapping 28, front contact 5, lamps 4, wire 27, earth 11, and wire 21. Similar circuit arrangements and conditions exist at relay 1 of section 10 ahead. When section 9 is occupied, winding 17 is de-energized, releasing contacts 5, 6, 7 and contact 15 is thrown to the left. The circuit of lamps 4 is thus broken at contact 5, and of winding 24 at contact 6. At the same time " stop " lamps 3 are energized from transformer 19 over wire 26, back contact 6, lamps 3, contact 15, wire 32, circuits at the section to the rear similar to those described below, and back to transformer 19 over earth 11 and wire 21. When the front of a train enters section 10, winding 33 of relay 1 is de-energized, the relay contacts being released and contact 13 thrown to the left. The corresponding " clear " lamps 4 are extinguished, and " stop " lamps 3 energized from transformer 20 over wire 35, back contact 6, lamps 3, wire 36, contact 13, wire 8, back contact 7, and winding 24 of relay 2, wires 23, 22, earth 11, and wire 37. Winding 24 is thus energized in series with lamps 3 of the section ahead. When the train clears section 9, winding 17 is energized and relay 2 returns to the normal conditions shown, winding 24 being then energized from transformer 19. If contact 13 fails to be thrown to the left, lamps 3 of section 10 are energized, the return circuit from contact 13 being over wire 38. An earthing resistance such as 40 may be provided so that if contact 7 of relay 2 fail, at least one of the lamps 3 of section 10 is energized. Contacts 13, 15 may be contacts associated with automatic train-stopping devices.
Patent GB-1096728-A (GB)
Title: Improvements in the refining of copper silver alloys
IPC: C22B11/00
Filed: 1966-05-25
Abstract: In a process for refining copper and silver mixtures, said mixture in a finely comminuted form is treated in the presence of dilute sulphuric acid to effect oxidation e.g. by passage of steam and air therethrough, and dissolution of the copper, and the resulting dissolved copper sulphate is separated from the undissolved silver residue which undissolved residue is then treated to recover its silver content.  The copper-silver mixture required for the process may be obtained in the required finely comminuted form by cathodic deposition, using a copper-silver alloy as anode, e.g. in the form of lumps of said alloy contained in a metal, e.g. titanium, basket, and using as electrolyte a solution of H2SO4, H2SO4 + copper sulphate, or a copper salt of nitric or sulphamic acid, the copper and silver being deposited on the cathode as a non-adherent sponge of fine dendritic crystals.  The silver residue obtaine from the oxidation process may be dried to form silver powder or may be cast.  Any silver dissolved in the copper sulphate solution may be precipitated by introduction of further copper therein.  The copper may then be obtained from the copper sulphate solution by deposition by adding iron thereto, or by electrolysis, or the copper sulphate may be precipitated fromthe solution.
Patent GB-1317531-A (GB)
Title: Variable speed direct current motor
IPC: H02K25/00
Filed: 1971-04-19
Abstract: 1317531 D.C. electric motors FIAT SpA 19 April 1971 [26 March 1970] 23472/71 Heading H2A A D.C. electric motor arrangement comprises a main motor 10, 36 having a commutator 34, and an auxiliary motor 22, 24 which drives rotating brushes 32 through which current is supplied to the commutator 34, the stator 10 of the main motor generating a field rotating at the speed of the auxiliary motor. The speed of the main motor is controlled by varying the speed of the auxiliary motor. The auxiliary motor has a permanent magnet stator 22 and a wound rotor 24 energized (46) via its own commutator 26 and brushes 28. The auxiliary motor drives a support 18 which carries the rotating brushes 32 and which is supplied with current by further rotating brushes 44, 46 engaging stationary slip rings 40, 42. The stator 10 of the main motor may carry windings 14 which, to provide the rotating field, are commutated either electronically or mechanically by a stationary commutator 16 and further rotating brushes 30 carried by the support 18. Alternatively the stator 10 may carry a threephase winding energized electronically or electromagnetically in synchronism with the auxiliary motor.
Patent GB-818697-A (GB)
Title: Improvements in or relating to the production of steel
IPC: C21C5/36
Filed: 1957-07-24
Abstract: A process for the production of steel in a basic electric arc T furnace comprises adding, after oxidization, a deoxidizing refining slag rich in silica and free from iron oxide, reducing agents such as carbon being added to the slag in such quantities that silicon which is produced in situ deoxidizes and siliconizes the steel until it is partly or completely killed.  The slag may consist of lime, fluorspar, or metallic oxides such as alumina together with quartz and it may be wholly responsible for siliconizing the steel or additions of ferro silicon may be made. The furnace lining was not severely attacked by a slag containing 35 per cent CaO and 55 per cent SiO2 and the steel produced is claimed to be especially clean.
Patent GB-194631-A (GB)
Title: Improved closure for vessels
IPC: B65D45/02
Filed: 1922-08-30
Abstract: 194,631. Moffat, A. J. H., Burnett, H., and Blaikley, D. Aug. 30, 1922. Stopper hinged at one side.-In bottles, jars, &c. which are closed by a lid hinged thereto by a resilient loop encircling the bottle neck, the loop 3 is slidably mounted in the lid 2 so that it can be moved around the neck to engage a securing tongue 4 formed on the lid and extending over the upper edge of the bottle.
Patent GB-637326-A (GB)
Title: Improvements in acetylene lamps and acetylene generators
IPC: F23D99/00
Filed: 1947-08-26
Abstract: <PICT:0637326/IV (b)/1> In acetylene lamps and generators of the type including an upper container for the water and a lower carbide container detachably fixed to said upper container and having valve means for controlling the passage of water from the water container to the carbide container, an obliquely directed guard or shield is provided attached to the bottom of said water container which partially surrounds the water outlet, and being adapted to direct the delivered water to a position near the wall of the carbide container so that the water from the outlet will fall on the guard or shield and be deflected to pass between the guard or shield and the wall of the lower container to the carbide.  The guard or shield may be of an inverted half cone or similar shape and constructed with a flange by which it is attached to the bottom of the water container.  In the Figure, the valve 17 controls the supply of water from the upper container 2 to the carbide container 1.  The hollow shield is of inverted half cone shape 25, and its lower end 26 projects in the direction of the wall of the carbide receptacle, so that the water from the valve falls on to the shield and is directed to the carbide near the wall of the carbide receptacle.
Patent GB-501650-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M5/10
Filed: 1937-08-27
Abstract: 501,650. Spray carburetters. BENDIX AVIATION CORPORATION. Aug. 27, 1937, No. 23553. Convention date, Aug. 31, 1936. [Class 7 (iii)] A vent passage, rising from an inclined fuel nozzle or from a communicating well disposed around or lying alongside the nozzle, prevents bubbles of fuel vapour, which may be formed when the engine has been stopped but is still hot, from traversing, and thereby discharging fuel from the nozzle. In the downdraught carburetter shown in Fig. 2, fuel is supplied through a calibrated orifice 48 and a passage 52 to a well 54 and enters an upwardly inclined fuel jet 36 through ports 72. The total crosssectional area of the ports 72 is greater than the area of the orifice 48. Vapour bubbles, which may be formed when the engine has been stopped, enter a chamber 62, where the vapour separates from the liquid fuel and escapes through an orifice 66. During normal running the orifice 66 admits aerating air into the well 54. The end 38 of the nozzle structure enters the float chamber and is surrounded by liquid fuel. A heat-insulating gasket is placed between the part of the carburetter which receives the nozzle structure and the part which carries the throttle valve. In modified constructions (a) the fuel fed from the calibrated orifice enters a second well beneath the well which communicates with the jet through a series of ports in the lower side of the jet, (h) the .fuel is supplied through the calibrated orifice 74, Fig. 4, to the interior of the jet 82 which communicates with the well 86 through orifices 84, and both the jet and well may be provided with vented chambers 62, and (c) the well is arranged along the jet 36 and communicates with it through a narrow slot.
Patent GB-226593-A (GB)
Title: Improvements relating to steam boiler installations provided with steam regenerativeaccumulators
IPC: F01K1/04
Filed: 1923-09-20
Abstract: 226,593. M³ller, P. H. Sept. 20, 1923. Hot-water storage-apparatus; steam regenerative accumulators; feed-water, supplying.-In a steam generating plant provided with a hot feedwater reservoir g into which excess boiler steam passes when the boiler load decreases, and which delivers regenerated steam into the boiler supply when the load increases, the steam outlet pipe h of the reservoir is connected to the inlet side of the superheaters b in order to superheat the regenerated steam before passing into the steam delivery pipe d. Non-return valves f, i are fitted in the steam supply and delivery pipes of the reservoir. Feedwater is fed to reservoir through a -regulator k so operated under the control of the pressure in the boiler steam pipe c that the feed is reduced when the steam pressure falls below the normal and is increased when the pressure rises above the normal. The heated feed water is taken from the reservoir and supplied to the boilers through pipes m, n. Specification 226,592 is referred to.
Patent GB-789622-A (GB)
Title: Improvements in electric battery lamps
IPC: F21L4/00
Filed: 1955-08-16
Abstract: 789,622. Electric battery lamps. PICARD, M. Aug. 16, 1955, No. 23613/55. Class 39(2) A battery lamp comprises a casing 1 of insulating material, e.g. wood, formed with at least one housing for a battery having a terminal at each end, and provided with a hinged metal lid 16 having a contact 18 positioned to engage a terminal of the battery when the lid is closed, the other terminal of the battery being in permanent contact with a part 6 of a metal strip 5 which supports a bulb socket to one terminal of which it is connected, the other terminal of the 7 socket being connected by a bolt or screw 11 to a metal spring 12 arranged to hold the lid releasably in the closed position, thereby completing the bulb circuit. As shown the upper end 21 of the spring 12 is shaped to interengage an indented recess 20 in the rear side of the lid when the latter is closed, disengagement being effected by depressing a bowed intermediate portion of the spring extending through a hole 15 in aback plate 14. A window 3 at the front of the casing is made of a transparent material such as acrylic resin which is given fluorescent properties by incorporating therein a fluorescent pigment, e.g, zinc sulphide, so that it will remain luminous for some time after the discharge of the battery or failure of the bulb. A masking strip, Fig. 1, (not shown) may be secured across the central portion of the window 3 with the object that it shall be recognisable up to a predetermined distance from the lamp and is not noticeable beyond that distance, thereby enabling vehicles carrying such a lamp to be maintained at a constant distance apart when moving in convoy at night. -