baber/WOPTO huggingface dataset:
Patent GB-255069-A (GB)
Title: Improvements in electrode structures for thermionic devices
IPC: H01J19/42
Filed: 1926-07-07
Abstract: 255,069. British Thomson-Houston Co., Ltd., (Assignees of Mullaney, D. A., and Hendry, J. F.). July 8, 1925, [Convention date]. Vacuum tubes. - A supporting and reinforcing system for an electrode, such as anode or grid, consists of channel members united with, and extending along the entire longitudinal axis of the surface of the electrode, and projecting beyond the end of the electrode, to the complementary parts of a clamping member adapted to embrace an insulating pedestal. As shown in Fig. 1, channel members 1 of molybdenum are secured, as by riveting or welding, to parts 3 of an anode, and to parts 5 of a clamp. Flanges on the parts 3, 12 of the anode are riveted or welded together. As shown in Fig. 2, a grid wire 17 is wound over the channel members 14, the upper ends of which are spaced by a quartz bar 19, and the lower ends are secured to parts 5 of a clamp. Wires 20 embedded in the bar, support quartz members 21, springs 22, and hooks for the cathode 18. A leading-in wire 32, embedded in a press 25, is inserted in a bearing hole in the bar to facilitate assembly, and has a conductor connected with the anode. The electrodes are connected with end caps on the container.
Patent GB-1444194-A (GB)
Title: Method of and apparatus for repairing the lining of coke-oven  riser tubes
IPC: C10B27/06
Filed: 1974-04-18
Abstract: 1444194 Repairing linings of coke oven riser tubes CERAMTEC GmbH 18 April 1974 [30 July 1973] 17033/74 Heading C5E The lining of a riser tube of a coke oven is repaired in situ by applying a fire-resistant composition to the defective part while (a) introducing a stream of cold air into the riser tube below the defective part and causing it to flow downward through the riser tube and into the oven and (b) preventing hot air rising through the tube by providing an obstruction within the riser tube between the defective part and the point of introduction of the cold air. Apparatus for use in the above process comprises an insertable portion having two concentric cylindrical walls which form an annular gap 48 of outer diameter corresponding to the inner diameter of the repaired lining. Compressed air is passed down a guide tube 30 and then through the annular gap 48, the fire-resistant composition is sprayed into the space between the inner wall 14 of the riser tube and the outer wall 44 of the insertable portion and the insertable portion is slowly raised as the repair proceeds. Fig. 1 (not shown) illustrates a device comprising a frame carrying three rollers and a tackle block for raising, lowering and guiding the guide tube 30 upon which the insertable portion is mounted; the riser tube is provided with a hinged cover.
Patent GB-917644-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/30
Filed: 1960-05-16
Abstract: 917,644. Sliding clasp fasteners. GIRON, F. S., GIRON, J. S., and GIRON, F. S. May 16, 1960 [May 16, 1959], No. 17125/60. Class 44. In a sliding clasp fastener having an element, controlled by the tab for preventing movement of the clasp until the tab is raised, releasable locking means are provided between the tab and the clasp for locking the tab in its out-ofuse, or lowered, position. The fastener shown has a clasp 1, a tab 2 and an element 3 which is an integral part of the tab and holds the clasp against movement when the tab 2 is in its out-of-use position as shown, the tab being looped through an eye in a raised portion 4 of the clasp. A key-operated lock 5 on the tab 2 has a tongue 6 movable by the key between the position shown in which it engages a recess 4<SP>1</SP> in the portion 4 and a position in which it is withdrawn clear of the recess. When engaged in the recess 4<SP>1</SP> the tongue 6 locks the tab 2 to thus positively lock the fastener. In an alternative embodiment the locking means consists of a tongue which is slidably or pivotally mounted on the tab 2 so as to be movable into a position in which it may be fixed to the clasp 1 by the hasp of a padlock passing through holes therein.
Patent GB-570624-A (GB)
Title: Improved driving mechanism for vessels
IPC: B63H23/34
Filed: 1943-10-18
Abstract: 570,624. Elastic-fluid turbines. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 18, 1943, No. 17127. Convention date, Nov. 20, 1942. Addition to 535,972. [Class 110 (iii)] The invention is an improvement in the driving mechanism for torpedoes using oppositelyrotating blade discs, as described in the parent Specification. and is characterised by the provision of stationary nozzles 11 before the first group of blades 12. One turbine disc 4 drives an outer shaft 3, and the other disc 8 drives the inner shaft 7, the shafts driving oppositely-rotating propellers. Fluid passing through labyrinth packing 16 is exhausted at 17. Fluid exhausted from the turbine by way of points 14 is discharged from the hollow shaft 7. A large fall in pressure of the working fluid occurs in the nozzles 11.
Patent GB-255082-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L27/04
Filed: 1926-07-08
Abstract: 255,082. Felix, A. P. July 10, 1925, [Convention date]. Ball-and-socket joints with valves.-A joint for pipes consists of a plurality of ball-and-socket joints, each comprising a ball member b<1> and a cap d<1> adapted to bear against the internal and external surfaces respectively of an extension of the ball casing a' under the action of a spring c<1>, the spring being adjustably mounted on the supply conduit b<1> which is integral with the ball. The supply conduit of one joint communicates with the casing of the other as shown. A spring-pressed valve r;. operated by fluid pressure is preferably arranged within one of the casings a', while a nozzle k may be provided on the other casing for connection of the joint to the part to be lubricated.
Patent GB-980969-A (GB)
Title: Method of producing cemented carbide articles
IPC: B22F3/12
Filed: 1961-05-11
Abstract: A cemented carbide tool, roll or structural member is produced by filling a metal tube such as stainless steel or nickel with a powder mixture of WC and/or TiC with Ni, Co or Fe, sealing the tube ends and swaging and heat treating the composite tube to sinter the cemented carbide.  The powders should have an average particle size of 3 microns.  The swaging may be cold or cold swaging may be followed by a hot swaging at 1200 DEG C.  Heat treatment after swaging is at 1200 DEG C.  To form a cutting tool, reamer or twist drill from the sintered composite, the cladding tube is partially removed and the exposed cemented carbide is formed to the required shape.
Patent GB-203097-A (GB)
Title: Improvements in thermionic valves
IPC: H01J19/38
Filed: 1922-06-22
Abstract: 203,097. Bullimore, W. R. June 22, 1922. Vacuum tubes. - A grid is formed by rigidly fixing a wire or wires at a number of points to a continuous or discontinuous metallic coJ- lar, the stiffness of the wire being sufficient to keep the grid rigid. The collar a may be formed with a number of lugs b bent to form hooks around which one or more wires c are laced to form loops, the contour of the outer ends of which conform to the shape of the filament. The loops may be stiffened by one or more wires d spot welded thereto., In a modification the collar is of channel or U-section with lugs bent inwards from one or both sides, which are afterwards closed in to anchor the wires; or the wires may be threaded through holes in the collar. Where lugs are arranged on both sides those on one side are staggered relatively to those on the other side. In another arrangement the loops may be former wound over a metal band, the band and loops being secured in a channel sectioned collar the sides of which are then closed in. A socket e may be provided for mounting on a conducting wire support or the support may be secured directly to the grid.
Patent GB-494409-A (GB)
Title: Improvements in push-type centrifugal separators
IPC: B01D33/00
Filed: 1938-06-10
Abstract: 494,409. Centrifugal separators. MEER, G. T. June 10, 1938, No. 17280. Convention date, June 11, 1937. [Class 23] A centrifugal strainer-separator 1 is provided with a plate 7 which pushes the material towards the outlet, and is attached to the feed hopper 8. The wall of the hopper is inclined at such an angle that the entering material just slips along the wall under the action of centrifugal force and gravity. The hopper 8 is constructed so that the diameter of the opening at the feeding end 11 is less than two-thirds of the diameter at the other end 15. A cylinder 4 is formed in the hollow driving shaft 3 of the separator, and pressure oil is admitted to the cylinder under automatic control to cause the piston 5 and the plate 7 to move backwards and forwards during the rotation of the separator. Excess material supplied to the hopper overflows into the basin 14 with a discharge outlet 13.
Patent GB-867683-A (GB)
Title: Improvements in or relating to needle bearings
IPC: F16C33/56
Filed: 1958-05-30
Abstract: 867,683. Bearings. SCHAEFFLER, W., and SCHAEFFLER, G., [trading as INDUSTRIEWERK SCHAEFFLER OHG.]. May 30, 1958 [May 31, 1957], No. 17366/58. Class 12 (1). A needle bearing comprises a race 1 and a comb-type cage 3 with needles 4, the race 1, formed from a sleeve without cutting, having a radially inwardly-directed and hardened rim 5 which limits axial displacement of the needles in the corresponding direction. The opposite end 2 of the race is open for the insertion of the cage 3 and the needles 4, axial displacement of the needles 4 from this end being prevented by an annular abutment 7 fixed to the shaft 8 on which the race is mounted. The end 2 of the race is preferably flanged or peened over after the cage 3, which may be made of synthetic plastic material, and the needles 4 have been inserted into the race. The ratio between the diameter of the race 1, which should not exceed 20 mm., and the bearing play should preferably not be less than 1 : 500.
Patent GB-862541-A (GB)
Title: Improvements in boring bars
IPC: B23B29/034
Filed: 1957-06-03
Abstract: 862,541. Screwdrivers. BREUNING, R. June 3, 1957 [June 1, 1956], No. 17518/57. Class 61. [Also in Group XXII] A double-ended screwdriver or a screw-and, nut driver comprises a shank 21 rotatable in a housing 20 having screw-threads for mounting the tool on a screw-threaded boss 14 in alignment with a screw 7 to be driven. Graduations 24 on the shank co-operate with a Vernier scale on the housing 20 to enable the screw to be driven a pre-determined distance. Stops 22, 23 on the shank limit its axial movement in the housing, and lugs 25, on the hollow end of the shank opposite the end formed with a screwdriving shoulder 21a engage the driving slots in a screw or a nut.
Patent GB-921531-A (GB)
Title: Improvements in or relating to the preparation of titanium tetrachloride
Inventor: EVANS ARTHUR WALLACE
IPC: C22B34/12
Filed: 1958-06-02
Abstract: In the chlorination of a titaniferous material in the presence of carbon in a fluidized bed of the kind described in Specification 762,583, a titaniferous slag is employed which contains not more than 5% Al2O3, 0,5% Ca, 7,0% MgO and 3,0% SiO2 respectively.  Carbon in the form of coke may constitute 10-30% of the mixture which preferably is from 124 to 353 microns in size.  The chlorination temperature may be from 1000 DEG  to 1200 DEG C. and the fluidizing gas velocity is preferably 7-20 times the minimum.  A quantity of slag and carbon corresponding to 11 times the weight of the initial bed may be chlorinated in continuous operation before sticking or impurity accumulation necessitate purging.
Patent GB-115050-A (GB)
Title: Improved Apparatus for Operating Door Bolts and the like by Electrical Means.
IPC: E05B47/06
Filed: 1916-12-07
Abstract: 115,050. Marks, E. C. R., (S³ddcutsche Telefon-Apparate Kabel-und Drahtwerke Akt- Ges.) Dec. 7, 1916 Retractive switches; electro-magnetic switches; retarding devices.-In an apparatus for electrically operating door bolts in order to allow the position of the bolt to be ascertained from various stories of the building switches are provided having thereon a lamp 38 and two pushes 36, 37. The pushes each comprise three contact springs a, b, c, of which the springs a, b are permanently in contact. The springs a are connected to the lamps 38, the springs b of pushes 36 to leads 30, the springs b of pushes 37 to leads 31 and the springs c to the switch levers 18 and leads 28. To provide for the automatic locking of the door a time switch is employed comprising a switch lever 40 pivoted on a bracket 39 and downwardly pressed by a spring 44. The lever is supported by a spring-pressed pawl 43 engaging a toothed wheel 42 rotated by clockwork. As the wheel 42 turns the lever 40 falls and moving over the nose 45 of a spring 46 makes contact between this spring and a spring 47 completing the circuit of the battery through leads 28, 31 and the closing coil 3. The right-hand end of the lever forms the armature of a magnet 49 in the bolt-opening circuit so that on the closing of the circuit by' a switch the lever 40 is again raised. Set screws 50 are provided for adjusting the throw of the lever and thereby the delay period of the switch. In a modified form of apparatus in which an electric motor is employed to actuate the door-bolt instead of a solenoid the current in either the field or armature is reversed by means of a switch, Figs. 10 and 11, comprising superposed arms 59, 60 connected together by a handle 51 of insulating material and pivotally mounted one over the other on contact pieces 62, 63. The upper arm 59 has contact projections 64, 65 and the lower arm projections 66, 67. Bv moving the double arm 59, 60 to the right the projections 64, 66 are connected with contact strips 68, 69 and by moving it to the left the projections 65, 67 engage strips 70, 71.
Patent GB-952780-A (GB)
Title: A nut adapted to be driven into an aperture in a support
IPC: F16B37/04
Filed: 1961-05-15
Abstract: 952,780. Making anchor-nuts. UNITEDCARR FASTENER CORPORATION. May 15, 1961 [May 18, 1960], No. 17649/61. Heading B3A. [Also in Division F2] A drawn sheet-metal nut (see Division F2) for anchoring in a hole in wood, soft metal or synthetic resin, has fins 3 formed by shearing the barrel 1 longitudinally.
Patent GB-616521-A (GB)
Title: Improvements in or relating to processes for manufacturing mercaptans and the products thereof
Filed: 1943-10-26
Abstract: Mercaptans are manufactured by condensing an olefinic compound with hydrogen sulphide in the presence of an inorganic halide catalyst consisting of hydrogen fluoride, boron fluoride, aluminium chloride, beryllium chloride, zinc chloride, boron chloride, phosphorus pentafluoride, arsenic trifluoride, stannic chloride, titanium tetrachloride or antimony pentafluoride.  The condensation is preferably carried out at low temperatures to minimise polymerization or depolymerization and always below 75 DEG  C.  It may be carried out in a batchwise or continuous manner.  In two examples, tertiary dodecyl mercaptan is prepared by condensing triisobutylene with anhydrous hydrogen fluoride in a steel autoclave equipped with an agitator in presence of hydrogen fluoride or boron trifluoride.  The continuous manner of operation is illustrated by examples in which hydrogen sulphide and triisobutylene are passed through a tubular reactor together with boron trifluoride and then into a solution of sodium hydrosulphide to destroy the catalyst.  The reactor may be maintained at a low temperature by permitting part of the excess hydrogen sulphide to evaporate in an expansion coil.  Olefins include open chain olefins, cycloaliphatic olefins such as cyclohexene and olefins substituted by aromatic, alicyclic, heterocyclic or inorganic radicals.  Examples are styrene, indene and turpentine.  The products of the invention may be used in controlling polymerization of 1 : 3-butadiene and homologues thereof in the manufacture of synthetic elastomers.
Patent GB-425972-A (GB)
Title: Improvements in or relating to vaporisers for internal combustion engines
IPC: F02M31/08
Filed: 1933-06-21
Abstract: 425,972. Vaporizers. NONY, G. A., 22, Rue Hamelin, Les Andelys, Eure, France. June 21, 1933, No. 17726. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 22, 1933]. [Class 7 (iii)] In a vaporizer comprising a casing through which the exhaust gases pass to heat a tube located therein and carrying the combustible mixture to the engine, the tube consisting of two identical branches joined together at their respective ends so as to have a common inlet connected to the carburetter and a common outlet to the engine intake and shaped as curves symmetrical with respect to a vertical plane passing through the inlet and outlet, the branches have a continuous ascending slope from the inlet to the outlet. A port 15 supplies a mixture of air and heavy fuel from a carburetter to an elliptical pipe 6 in a casing 1 disposed adjacent the cylinder block and connected by tubular passages 3 with the cylinder outlets. The passages may be provided with guides to direct the exhaust gas directly on to the pipe 6. From the top of the tube 6, a delivery pipe 8 leads the mixture outside the casing to branch pipes 9 leading back to the cylinders through the casing, the arrangement serving to cool the mixture. The pipes 9 may be disposed with clearance in conduits in the casing and either fins may be provided on them or they may be waterjacketed. In a modification, the upper part of the elliptical tube 6 is raised to a point and the delivery pipe extends across the top of the cylinder block entering the cylinders at the side opposite the exhaust outlets. Light oil fuel mixture is supplied directly to the junction of the pipe 8 and 9 and the supply of heavy or light mixture controlled by interconnected throttle valves on either side of the junction. The tube 6, the inlet 15 and the end of the delivery pipe 8 remote from the tube 6 have the same cross section.
Patent GB-581613-A (GB)
Title: Improvements in or relating to oscillation generators
IPC: H03K4/18
Filed: 1944-09-15
Abstract: 581,613. Pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Sept. 15, 1944, No. 17730. [Class 40 (v)] A pulse generator comprises a pentode valve with regenerative condenser coupling between the anode and the control grid and with a tuned circuit in the cathode lead to synchronise the output pulses which are taken from the screen grid. In Fig. 1, an initial flow of anode current through pentode 1, produces a fall in anode voltage which reacts on the control grid through condenser 12. The fall in grid voltage reduces the screen current, and as this constitutes most of the cathode current, the cathode voltage falls by reason of bias resistance 6. As cathode voltage falls below fixed suppressor grid voltage anode current increases, the corresponding fall in anode voltage being transferred to the control grid through condenser 12 until valve current is completely cut off. Grid voltage is restored through leak resistance 13 and rises until the cathode voltage again exceeds the suppressor grid voltage, when cycle is repeated. Pulses produced when the space current is cut off " ring " resonant circuit 7, 8 so that an alternating voltage is superimposed on the cathode voltage and the frequency of the pulses is determined exactly by the ringing frequency. A diode 14, prevents control grid voltage from exceeding the suppressor grid voltage. In synchronising this circuit by means of a pulse train, the synchronising pulses may be applied at 17 or, to eliminate the effect of interference, through a gating circuit. Fig. 4 shows a gating pentode 21, biassed to be normally blocked and unblocked by a pulse from the screen of the oscillator pentode, suitably delayed to synchronise with the arrival of succeeding pulses at the grid of pentode 21. The amplified pulse is applied through condenser 34 to the anode of the oscillator pentode for synchronisation purposes. In a further modification, an amplified train of pulses from the gating pentode 21 is applied to inductance 7 of the ringing circuit in the oscillator cathode circuit by means of an inductively coupled winding (Fig. 5, not shown).
Patent GB-446657-A (GB)
Title: Improvements relating to casing head equipment for bore holes or wells
IPC: E21B33/06
Filed: 1934-07-30
Abstract: 446,657. Boreholes and wells. SEAMARK, L. M. C., Elmwood House, Petersfield, Hampshire. July 30, 1934, Nos. 17766 and 26724. [Class 85] A casing head equipment for boreholes and wells comprises a casing containing a massive sleeve of rubber &c. through which drill stems, casing tubes &c. may pass, and a piston and cylinder or equivalent device actuated by fluid pressure to effect axial compression and consequent inward contraction of the sleeve. In Fig. 1, a massive elastic sleeve f is moulded in one piece or formed of superposed rings or parts thereof; the superposed rings may have interlocking ribs and recesses and may be slit, slits of adjoining rings being out of line, while the bore of the rings may have curved &c. walls. An annular piston a is mounted on or engaged with the sleeve f and is depressed by fluid from the well or from a hydraulic accumulator &c. admitted through passage d<6> to contract the inner diameter of the sleeve. A tube b extends upward from the piston and the weight of the drill stem &c. may be applied thereto to act on the sleeve f. The cylinder cap d may be secured by bayonet joints or by a threaded joint and locked by a member d<5> engaging recesses. An air release plug j is provided and passages d<1> formed in the cylinder or in the tube b and provided with similar plugs permit escape of fluid leaking past the piston. In Fig. 7, the sleeve f, piston a and cylinder g are rotatably supported in an outer casing c by ball bearings p, p<1>, the fluid supply passing through an apertured ring q<2> bearing on packing and adjusted by screws q. Below the sleeve f, a packer l may be provided for contraction by external pressure as described in Specifications 358,419 and 389,513 ; such packer is preferably formed of oil-proof synthetic rubber. A flexible diaphragm may replace the piston a.
Patent GB-145607-A (GB)
Title: Improvements in or relating to rail anchoring or anti-creeping devices
IPC: E01B13/02
Filed: 1920-06-29
Abstract: 145,607. Henggi, L. O. March 17, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Creeping of rails, preventing.-A creep-check 3 formed from a single piece of spring metal has limbs 4, 5 engaging over the rail flange 2 and a centre portion 8 engaging under the rail flange, the limb 4 being first placed on the rail flange and the check then driven transversely so that the limb 5 also engages the rail flange. As shown in Fig. 4, the limbs 4, 5 and centre portion 8 are bevelled so as to bite into the rail flange. The portion 8 is thinner than the limbs 4, 5, and the limbs are of unequal length.
Patent GB-314667-A (GB)
Title: Improved manufacture of nickel anodes
IPC: C25D17/12
Filed: 1928-06-19
Abstract: 314,667. International Nickel Co., Harshaw, W. J., Savage, P. M., and Bezzenberger, F. K. June 19, 1928. Drawings to Specification. Nickel, depositing.-Nickel anodes for use in nickel plating have uniformly distributed throughout the body of the anode an oxide of nickel, cobalt, iron, chromium, molybdenum, silver, vanadium, copper, or zinc in order to ensure more even corrosion during use. Moltennickel may be subjected to the action of air, or the metal oxide may be added to the bath. On cooling, the oxide tends to segregate at the boundaries of the crystals of metal, and the metal is then reheated to a plastic state, between 925‹ and 1315‹ C., and subjected to mechanical treatment whereby the oxide is uniformly distributed throughout the body of the material. Oxygen is present in the finished product in the proportion of 0.05 to 0.25 per cent, and preferably 0.24 per cent.