baber/WOPTO huggingface dataset:
Patent GB-219902-A (GB)
Title: Improvements in arrangements for effecting and securing the semi-automatic closing of gas cocks
IPC: F16K17/20
Filed: 1924-03-24
Abstract: 219,902. Drab, L. March 24, 1924. Plug cocks; valves actuated indirectly.-A gas cock of the rotary plug type is made semi-automatic in its closing movement by means of an elliptical cam d secured on one end of the plug and springs acting thereon, the springs being bent to the shape of the cam and supported in brackets on the cock casing. Roller contacts f may be mounted on the ends of the cam. When the cock is applied to a gas pipe k an arm g on the cock plug is connected by a chain or other flexible member to a clip i on the end of the gas pipe so that if the cock becomes detached the chain gives an initial closing movement which is then completed by the springs and cam.
Patent GB-679506-A (GB)
Title: Improvements in electric discharge tubes
Inventor: GENTRY CHARLES HAROLD RAYMOND
IPC: H01J19/30
Filed: 1950-03-24
Abstract: An electric discharge tube comprises a carbon electrode, such as an anode, coated with molybdenum by the reduction of molybdenum sequioxide produced by electro-deposition.  The plating bath may consist of specified proportions of ammonium molybdate, ammonium chloride, sodium citrate, hydrated nickel sulphate. the pH value of which is adjusted to 9.6 by the addition of ammonia.  The electrolysis is carried out at specified temperatures and current densities, the carbon electrode forming the cathode and molybdenum sheets the anode, and the coating may be reduced by heating to 800 DEG C-1500 DEG C in hydrogen.
Patent GB-567112-A (GB)
Title: Improvements in or relating to electric impulse recording installations and to circuit arrangements for use therewith
IPC: H03K3/00
Filed: 1943-05-11
Abstract: 567,112. Totalisators. BELL PUNCH CO., Ltd., and MILBURN, R. May 11, 1943, No. 7458. [Class 40 (i)] In a totalisator or other system in which impulses produced bv the actuation of corresponding keys K1, K2 at a number of stations are aggregated at a central station on separate counters R1, R2 and also on a total counter T, storage relays S1, S2 ... and transfer relays P1, P2 ... are provided individual to the stations, and in order that only one transfer relay shall be operative at a time the operation of an S relay connects the corresponding P relay to a chain circuit passing over normal contacts of all the P relays. As applied to a totalisator, the keys K1, K2 remain latched until a ticket has been issued, and actuation of either key closes contacts C to operate relay S1. Relay P1 when energized locks dependent on S1 only and connects ground by way of the actuated key to one of wires 12, 13, which are common to all the stations, to energize the relevant counter R1 or R2 and the total counter T. Release relay RR1 energizes to ground returned over wire 17, disconnects S1, P1 and initiates the issue of a ticket, remaining locked over contacts C until this operation has taken place. It will be seen that if keys are actuated at all the stations simultaneously relays P1, P2 ... will become. operative in turn.
Patent GB-731109-A (GB)
Title: Gear coupling
Inventor: SHENK ROBERT H
IPC: F16D3/18
Filed: 1953-03-18
Abstract: 731,109. Universal joints. AMERICAN FLEXIBLE COUPLING CO. March 18, 1953, No. 7541/53. Class 80 (2). In a shaft coupling in which involute teeth 1 on a sleeve 2 mesh involute gear teeth 4 on hubs 3 the faces 12 of the teeth 4 are convex in an axial direction and the tips of the teeth are bevelled at 11. The tips 5 are spherical and engage the root faces 7 of the teeth 1.
Patent GB-301685-A (GB)
Title: A crucible holder and stand
IPC: B01L9/00
Filed: 1928-03-13
Abstract: 301,685. Hartley, G. S. March 13, 1928. No Patent granted (Sealing fee not paid). Stands and upright supports.-An implement for lifting a crucible from the triangle on which it has been heated comprises a triangular block of porcelain or like material having raised projections a at its angles to engage the sides of the crucible. A wire handle e, f rises vertically from a groove d at one angle of the block and is secured to the latter by a nut g screwed on to the bent-up portion e which passes through a hole b in the block. The latter is of such dimensions that it can be passed upwards through the triangle, removing the crucible in its passage. Fig. 2 shows a stand on which the crucible ma.v be deposited by the holder for cooling or weighing. It consists of a triangle through which the holder is lowered leaving the crucible behind in its passage, one angle being open to allow the passage of the handle as the implement is withdrawn sideways.
Patent GB-213595-A (GB)
Title: Improvements in electric switches
IPC: H01H51/06
Filed: 1924-03-27
Abstract: 213,595. Luma - Werke Akt. - Ges. March 28, 1923, [Convention date]. Electromagnetic switches, specially adapted for completing the circuit to the starting motor of a motor vehicle, have an auxiliary carbon contact a arranged concentrically to the axis of the armature b. The contact a is in the form of a ring and moves in a sleeve c under the action of a spring d, so that when the coil of the electromagnet is de-energized, circuit is broken first, at the main contact e and later at the contact a. The parts a - - e may be disassembled by unscrewing a nut f.
Patent GB-253993-A (GB)
Title: Improvements in treatment of materials for combatting vermin and compositions suitable therefor
Filed: 1925-03-24
Abstract: 253,993. Graesser-Monsanto Chemical Works, Ltd., and Cohen, A. M., (Representative of Lefroy, H. Maxwell-). March 24, 1925. Soaps contain 10 per cent dichlornaphtha. lene. According to the second Provisional Specification the soap may contain trichlor- or hexachlornaphthalene. The higher brominated naphthalenes may replace the polychlorinated naphthalenes, or mixed bromochloronaphthalenes may be used.
Patent GB-106009-A (GB)
Title: Improvements in Flares or Illuminating Bodies for use on Aircraft.
Inventor: HOLT HAROLD EDWARD SHERWIN
IPC: B64D47/04
Filed: 1916-06-03
Abstract: 106,009. Holt, H. E. S. June 3, 1916. Pyrotechnic apparatus. - Relates to flares for use on aircraft, and consists mainly in isolating two or more portions of the flare material from one another in the same casing or separate casings mounted on the same bracket, and providing each portion of the flare material with separate igniting means, which may be controlled from the same hand. switch. In order to prevent the disintegration of the flare material by heat, perforated disks or diaphragms of paper or other combustible or fusible material are placed at intervals in the material of the flare. Fig. 1 shows one form in which the flare casing is divided into two compartments a', a<2> by means of solid wood or other non-conducting blocks, or spaced wood and cardboard disks b, c separated by an air space, each compartment being provided with a separate igniter d' embedded in priming material. Cardboard tubes f, f' for admitting air to the core of the flare material are arranged centrally in each compartment. The circuit y, y<1> of the igniter d<1> of the upper compartment a' is controlled by the same hand-switch as the circuit x, x<1> of the igniter of the lower compartment a<2>, but is kept open during the first closing of the hand-switch by an auxiliary switch, which is arranged to close automatically after the ignition of the lower portion of the flare. The switch arm h, Fig. 6, of the auxiliary switch is normally held away from a contact i by means of a wire j passing through a protective sheathing k on the flare body and attached to a nail l, Fig 1, or similar fastening on the lower part of the casing. When the lower part of the casing is consumed, the switch arm is released and engages the contact i, so that an electric current is passed through the upper igniter d<1> when the hand-switch is again closed. Fig. 9 shows a second form in which separate flare casings a<3>, a<4> are arranged on the same angular bracket q, the ignition of each flare being controlled by the same hand-switch. An automatic switch arranged in the circuit of the igniter of the flare a<4> is held in the open position by a wire j<1> attached to the flare a<3> so that the switch is closed when the flare a<3> is consumed.
Patent GB-667352-A (GB)
Title: Improvements in or relating to garden hose supports
IPC: A01G25/00
Filed: 1950-03-30
Abstract: 667,352. Supporting hose nozzles. WOLSEY, G., and HUGO, N. March 30, 1950. [May 7, 1949] No. 7940/50. Class 47 (ii). Also in Group XXV. Means for supporting a garden hose comprises a spike 2 provided with a handle bar 3 having mounted thereon a pivoted jaw clamp 4, 5 secured by a screw 12 and wing nut 15. The jaw 4 is mounted on the bar 3 by apertured lugs 7 and secured by a screw (not shown).
Patent GB-704227-A (GB)
Title: Process for the production of olefin oxides
IPC: B01J23/50
Filed: 1952-03-28
Abstract: Olefin oxides are prepared by oxidizing olefins in the presence of a silver or silver-surfaced catalyst mixed with a chloride, bromide, iodide, or cyanide of one or more metals of Groups I or VIII of the Periodic Table (see Group III).  Preferably from 0.1-40 per cent. of the metal compound, based on the weight of uncombined silver, is present.  The additive may be mixed with the silver component before use, or may be introduced in finely-divided form with the olefin feed.  When the catalyst is used in the fluidized state, a portion may be continuously or periodically withdrawn and supplied with additional amounts of additive.  The reaction may be carried out at 150 DEG -400 DEG C. and under normal, sub- or superatmospheric pressure.  Oxygen (e.g. as air) may be introduced with the feed or may be formed in situ from oxygen-containing substances.  The feed may also contain diluents such as nitrogen, carbon dioxide, steam, or paraffins.  Improved yields of olefin oxides result and the formation of "hot-spots" in the catalyst bed is avoided.ALSO:A catalyst composition for the conversion of olefins to olefin oxides (see Group IV (b)) comprises uncombined silver mixed with a minor proportion (preferably 0.1-40 per cent.) of one or more chlorides, bromides, iodides, or cyanides of metals of Groups I or VIII of the Periodic Table.  Silver salts are preferred but other compounds specified are the chlorides, bromides, iodides, or cyanides of sodium, potassium or lithium, cuprous chloride or cyanide, and ferrous, cobalt, or nickel chlorides.  The additives may be finely-divided or in the form of small pellets, and may be supported on pumice or alumina.  The uncombined silver portion of the catalyst may contain minor amounts of gold, copper, silver oxide or strontium oxide, and may be supported on silica, alumina, or zirconium oxide: finely-divided alumina may be included as a diluent.  The catalyst gives improved yields of olefin oxides without the formation of "hot-spots" in the catalyst bed.
Patent GB-678733-A (GB)
Title: Improvements in or relating to thermostatically controlled electric heating systems
IPC: G05D23/275
Filed: 1950-03-30
Abstract: 678,733. Electric heating. HIGGS, G. W. March 30, 1951 [March 30, 1950], No. 8019/50. Class 39(iii) [Also in Group X] A thermostatically controlled heating system comprises one or more main electric heaters 26, 27, 28 supplying heat to a chamber 10, and an auxiliary heater 31 directly heating a thermostat 30 e.g. a bimetal strip, in the chamber, the main and auxiliary heaters being controlled by switch means operated-by the thermostat 30, which opens and closes the switch at predetermined temperatures, and the auxiliary heater 31 having a thermal capacity much less than that of the main heaters. The main heaters 26, 27, 28 are disposed below the chamber 10, which may be a medical treatment chamber, or a chamber required for scientific experimental work, and they heat respectively a drying chamber 14, a junction 19 and a humidifier 22 through which an air stream is passed. Atmospheric air may enter the circulating system at 16, and is passed through the chamber 10 and the rest of the system by means of a fan 17. The low thermal capacity of the heater 31 ensures its rapid heating and cooling, and hence prevents the main heaters 26, 27, 28 from being energized long enough to store heat which would continue to raise the temperature of the chamber 10 after operation of the thermostat 30.
Patent GB-900156-A (GB)
Title: Fastener elements for slide fasteners and method and apparatus for making such elements
Inventor: CHERY WALTER VALDEMAR
IPC: B21D53/52
Filed: 1960-03-07
Abstract: 900,156. Making sliding clasp fasteners. TALON Inc. March 7, 1960, No. 8019/60. Class 83 (2). [Also in Group XXV] A method of making elements for a slide fastener comprises the steps of feeding a strip 5 of material of substantially Y-shaped crosssection upwardly, forming channels 9 in the opposed inner wall faces of the strip 5 by a punch 7, cutting blanks B from the strip by a knife 4 moving to the right across a cutting-off die 6, and positioning the blank B in die 3 where a recess 14 and a projection 15 are formed in the head portion 12 of the blank.
Patent GB-874511-A (GB)
Title: Rutile pigments of improved photochemical stability
IPC: C09C1/36
Filed: 1959-03-09
Abstract: Rutile pigment is improved as regards photochemical stability by slurrying it with water, treating the slurry with a water-soluble silicate, an aluminium and a cerium salt, and adding alkali to the mixture until a neutral or alkaline reaction is obtained, thus producing a coating of a silicon, an aluminium and a cerium compound on the pigment which is then recovered.  In an example, rutile pigment is slurried with water, and solutions of water-glass, aluminium sulphate, ceric sulphate and ammonia are added, with intermediate stirring and a final stirring during which the pH is maintained at 8.1.  The solids were then removed by filtration, washed, dried and milled to a fine particle size.
Patent GB-286103-A (GB)
Title: Improved means for supplying oil to bearings
IPC: F16N7/18
Filed: 1927-03-24
Abstract: 286,103. Michell Bearings, Ltd., and Scott, H. B. March 24, 1927. Force-feed lubricating.-In a multipad journal or thrust bearing, oil carried up from a reservoir 3 by a collar 5 secured to the shaft 6 is forced through a passage 7 of diminishing cross-sectional area formed by a groove in the upper part of the casing and is ejected through a port 9 near the top of the bearing into a chamber 4 communicating by a port 10 with an annular chamber 1 encircling the pads 2. The chamber 1 is thus maintained full of oil and each pad receives an individual supply therefrom. Alternatively, the chamber 4 may be omitted, the oil being delivered direct to the chamber 1, or the oil may be delivered direct to each pad through separate passages. The passage 7 may be arranged to cooperate with either the peripheral or side face of the collar. Where, the shaft is required to run in both directions, collars may be fitted at both ends of the bearing, adapted to co-operate with oppositely-arranged passages 7, or a single collar may be adapted to coact with two passages. Specifications 23496/11; 185,756, [Class 12 (i), Bearings &c.], and 189,014 are referred to.
Patent GB-550835-A (GB)
Title: Improvements in and relating to plug valves and method of finishing same
IPC: B24B15/08
Filed: 1941-06-30
Abstract: 550,835. Valves. TRIGGS, W. W. (Merco Nordstrom Valve Co.). June 30, 1941, No. 8217. [Class 135] [Also in Groups XXIII and XXII] Plug valves are ground into their seats whilst held at the temperature at which the valve is to operate. For temperatures up to about 600‹ F. a mineral oil bath may be employed and for higher temperatures up to 1000‹ F. a sand bath or a bath of diphenyl, or molten lead &c. may be used. The valve body is loosely mounted in a cradle 5 in the bath 6 heated as at 10 and the plug 12 loosely held in a chuck 15 on a spindle 16, bevel geared to a shaft 31 that also drives a feed shaft 43 driving a cam 37 that coacts with a cam 36 on the shaft of the quill pinion 22. This shaft is fitted with a weighted lever 25. The action of the cams causes the valve to be raised periodically from its seat and the gear ratios are such that during the time whilst the valve is raised it rotates less than one revolution. The valve may be finished by grinding or machining instead of by lapping.
Patent GB-590240-A (GB)
Title: Improvements in or relating to feed apparatus
IPC: B65G53/66
Filed: 1945-04-04
Abstract: 590,240. Pneumatic conveyers. BUHLER BROS. April 4, 1945, No. 8289. Convention date, March 2, 1944. [Class 78(i)] In apparatus such as pneumatic conveyers and hammer mills and similar disintegrating devices in the operation of which a volume of air varying with the load is drawn in by suction action, the feed of material is controlled by a pivoted slide 3, an extension 6 of which is connected by a link 10 to a pivoted damper 7 so that the feed is controlled in accordance with the variations of the volume of air sucked into the device by the action of the material.
Patent GB-1533365-A (GB)
Title: Thermit compositions for ingot mould repair
IPC: F24V30/00
Filed: 1977-02-28
Abstract: 1533365 Repairing ingot moulds FOSECO TRADING AG 28 Feb 1977 [4 March 1976 23 June 1976] 8355/77 Heading B3F [Also in Divisions C7 and C5] An exothermic composition, which on ignition yields a molten mass, comprises a particulate mixture of iron oxide, oxidizable metal and a refractory filler consisting at least partly of zircon. The filler may also include one or more of silica sand, silica flour, olivine, quartz, chamotte, mullite, crushed fire brick, sillimanite, fire clay, silicon carbide, magnesite, aluminium silicate, dead-burnt dolomite, alumina, magnesia, fused silica or vitreous silica, and may amount to 18-50% by weight of the combined weight of metal and iron oxide. It is used particularly for the repair of eroded ingot mould base plates.
Patent GB-227321-A (GB)
Title: An improved apparatus for providing amusement
IPC: A63G13/02
Filed: 1924-04-02
Abstract: 227,321. Robinson, F. April 2, 1924. Rails and tracks.-A pair of rockers a, which rest on rails d, carries rails g for a carriage h, so that as the device is rocked the carriage runs to and fro on the rails g between the stops k. Guides f, j keep the rockers and the carriage on their respective tracks.
Patent GB-1225023-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
Inventor: GOWER PHILIP BULLIVANT
IPC: A43D21/16
Filed: 1968-02-16
Abstract: 1,225,023. Boots &c. BRITISH UNITED SHOE MACHINERY CO. Ltd. 14 Feb., 1969 [16 Feb., 1968], No. 8541/69. Divided out of 1,225,021. Heading A3B. The subject matter of this Specification forms part of that described in Specification 1,225,021 but the claims are concerned with a gripper assembly including detecting means which allows the lasting margin to slip between the jaws of the gripper until a pre-determined amount of lasting margin remains between the jaws at which time the jaws exert increased gripping pressure and pull the upper over the last.
Patent GB-278258-A (GB)
Title: Improvements in carburettors
IPC: F02M19/03
Filed: 1927-03-30
Abstract: 278,258. Cattle, G. March 30, 1927. Spray carburettors.- The fuel nozzle comprises a hollow plug 4 extending across the mixing- chamber 1 and provided with one or more peripheral grooves 6 into the bottom of each of which opens a radial fuel outlet orifice. An inner plug 10, to the interior of which fuel is admitted from the inlet 3 through a groove 22 and orifices 23, is rotatably mounted within the plug 4, and is provided with orifices 11 adapted to register with the fuel outlet orifices in the plug 4. Grooves decreasing in depth are provided adjacent the holes 11, so that by rotating the plug 10 the fuel supply may be controlled. To admit fuel for slow-running, the plug 10 is provided with a hole 14 opening into a groove 13 which registers with a hole 9 in the plug 4. The throttle valve comprises a barrel-shaped casing cut away at 16 to leave a web 17 adapted to extend across the mixing-chamber. The leading edge of the web 17 is provided with a notch 18 to admit mixture for slow-running, and with a lip 19 which acts as a stop to limit the extent of movement of the valve. Specification 160,914 is referred to.
Patent GB-398893-A (GB)
Title: Improvements relating to electrically actuated indicating devices
IPC: B61L25/08
Filed: 1932-03-24
Abstract: 398,893. Two-position indicators. HENDERSON, J. H., 24, Ribblesdale Road, Streatham, and SYKES INTERLOCKING SIGNAL CO., Ltd., W. R., 26, Voltaire Road, Clapham, both in London. March 24, 1932, No. 8809. [Class 40 (i).] An electric indicator comprises a cylinder 12 with the two halves of its surface differently coloured and with its spindle 11 actuated by a toothed sector 9 fixed to the small air-gap armature 6 of a twocore electromagnet 5. The indicator unit is mounted in a frame. 1 for ready attachment to a panel 2 formed with apertures through which the cylinders 12 project.
Patent GB-902525-A (GB)
Title: Stone or like clearing device
IPC: A01B43/00
Filed: 1959-06-03
Abstract: 902,525. Agricultural implements. SILK, O. A. March 14, 1960 [June 3, 1959], No. 8815/60. Divided out of 902,524. Class 6(1). A stone clearing device comprises a number of rotary pronged members 1 angularly mounted so that they rotate by contact with the ground. The device is attached by pins 11 to a tractor linkage and may be mounted in front of a seed sower or hoeing machine. Lateral guards may be provided alongside the members 1. The members are each freely rotatable in a shaft 6 fixed to a channel member 20 laterally adjustable on a wheeled frame 3. As shown in Fig. 6 some or all the prongs may be agitated or vibrated by means of a striker roller 30 on a radial arm fixed on the shaft 16. Specification 835,943 also is referred to.
Patent GB-1157776-A (GB)
Title: Improvements in or relating to Caster Assemblies
Inventor: MASLOW LOUIS
IPC: B60T1/00
Filed: 1968-02-23
Abstract: 1,157,776. Castor. L. MASLOW. 23 Feb., 1968 [17 March, 1967], No. 8869/68. Heading A4U. In a castor, having rolling and/or swivelling brake means, the wheel 12 rotates on a spindle 22 extending between arms 14, 16 of a mount 26 which is rotatable relatively to a pin 50. A support 54 for a brake member 68 passes through the pin and is lowered to press the member against the wheel by rotation of a rod 104, by a lever 106, to press a cam 110 against a limb 63 of a U-spring, the limb 63 being secured by nuts 65, 67 to the support, and the other limb 59 of the U-spring bearing on a fixed plate 80 of a housing 102. Adjustment of nuts 65, 67 along the support 54 adjusts the tension of the spring, which on release of the lever, raises the brake member from the wheel. The mount 26 has peripheral holes 164 registerable with holes in fixed plates 60 and 80 for engagement by a swivel lock pin 172 which is apertured for passage of a resilient wire 176 having loops engaged by fixed pins 134 and 136 and engaged in a cam slot 146 in a rod 142. Rotation of the rod 142 by a lever 144 raises the pin 172 to permit swivelling of the castor.
Patent GB-1180722-A (GB)
Title: Improvements in or relating to Devices for Setting a Type Carrier
IPC: B41J25/24
Filed: 1968-02-23
Abstract: 1,180,722. Selective printing. SIEMENS A.G. 23 Feb., 1968 [27 Feb., 1967], No. 8871/68. Heading B6F. A device for setting a type-carrier into one of three positions, e.g. for case-shifting, in dependence on an incoming code signal, comprises a continuously rotating shaft with two cams 2, 3 driven by friction clutches and each latched in one of two positions so that a first lever 12 is moved by one cam to shift the type-carrier and a second lever which moves the pivot of the first lever to provide the third position. In a second embodiment (Fig. 3, not shown) the first lever (23) is set by a cam (17) and its spindle (22) is moved in a plane parallel to the setting positions by the second lever (19).