baber/WOPTO huggingface dataset:
Patent GB-168333-A (GB)
Title: Improvements in explosive materials
IPC: C06B43/00
Filed: 1921-08-27
Abstract: 168,333. Lundsgaard, C. J. S., and Herbst, K. T. Aug. 28, 1920, [Convention date]. Explosives.-Perchlorates of methyl substitution products of ammonia are used as explosives. The perchlorate of monomethylamine, dimethylamine, trimethylamine, and tetramethyl ammonium are. found to be stable, and, with the exception of the dimethylamine compound, substantially insensitive to moisture. The explosives may be used alone or may be mixed with other explosives, with substances yielding oxygen or absorbing oxygen, with moderating-agents, or with carbonates or hydroxides which neutralize acid combustion products. They are suitable for use in shells or as mining explosives, or for the intermediate charges of detonators.
Patent GB-352280-A (GB)
Title: Process for treating gas mixtures containing saturated hydrocarbons
Filed: 1930-07-29
Abstract: The process of the parent Specification, according to which saturated hydrocarbons or gases rich in saturated hydrocarbons are rapidly passed with steam and oxygen through a reaction chamber heated to 1300 DEG  C. or more, is now applied to gases containing a relatively low proportion of saturated hydrocarbons, with or without hydrogen. In an example, coke oven gases containing methane 22,6 and hydrogen 56 per cent are treated, yielding a gas containing hydrogen 63,2, carbon monoxide 16,9, and acetylene 4 per cent.
Patent GB-427094-A (GB)
Title: Improvements in the propulsion of shafts
IPC: B64D35/08
Filed: 1933-08-16
Abstract: 427,094. Plant; driving and turning gear. HURD, G., 12, Rhodes Terrace, Beddington Grove, Wallington, and TRIGGS, C. S., 155, Stafford Road, Croydon, both in Surrey. Aug. 16, 1933, No. 22857. [Classes 7 (ii) and 7 (v)] [See also Groups XXXIII and XXXIV] A rotary shaft driven by radially arranged complete engine units through " freewheel " or one-way clutches is provided with a sliding toothed wheel on the shaft which is moved to engage pinions fixed on each parallel engine shaft whereby an idle engine may be started up, the teeth on the sliding wheel being wider at one end of a diameter of the wheel than at the other so that each pinion is engaged separately. Where the rotary shaft is at right angles to the engine shafts, bevel gears are used, and where the engine shafts cross the rotary shaft at right angles, skew gears are used, the skew pinion being adapted to be locked to its shaft by a dog-clutch. The large sliding wheel may be replaced by a number of smaller wheels slidable on shafts parallel to the central shaft whereby one or two engines may be driven from the central shaft. As shown applied to aircraft, complete engine units 1, 1<a>, 1<b>, Figs. 2 and 7, are bolted to a common gearsupporting plate 3, the crank shafts 19 carrying flywheels 20 and gear wheels 22 which are supported in bearings on the casing 12. A free-wheel gear wheel 25 rotates on the hub of the gear wheel 22 and is meshed with a gear wheel 28 mounted on splines on a driving shaft 29 provided with thrust bearings. A gear wheel 46 slides on the splines and is tapered in width to permit partial progressive engagement with the gears 22 whilst slowly turning the propeller shaft 29, the wheel being moved along the splines by a lever 47. The units are secured to a common end-plate 7 by bolts 8 and distance tubes 9. A band brake 58 surrounds a flange on the propeller boss, one end being secured to an adjustable ratchetted cam 59 whilst the other is provided with rollers 65 and is tightened by cam slots in a disc 66. The number of teeth on wheels 46, 22 may be different from those on 25, 28. The engine drive may be transmitted through an idle pinion 105b, Fig. 21, and a pinion 105 to the propeller shaft for reversing purposes, the pinion 105 being mounted on a pivoted lever which carries a similar pinion 105<a> for the direct drive, the lever being operated to move one or the other pinion into engagement with the gear 28. The propeller may be inclined or at right angles to the engine shaft and may be driven through skew bevels. Banks of complete engines may be radially arranged or arranged in line. More than one propeller may be driven.
Patent GB-370787-A (GB)
Title: Improvements in means for controlling aeroplanes in flight
IPC: B64C17/00
Filed: 1931-08-13
Abstract: 370,787. Controlling aircraft automatically. ROBERTS, B., Paihia Road, Merriland, Auckland, New Zealand. Aug. 13, 1931, No. 22904. [Class 4.] An aeroplane stabilizing device of the type comprising a universally mounted control column carrying a depending weight has the lower portion of the control column formed as a cylinder in which is arranged a sliding weight adjustable from an effective to a non-effective position and vice-versa. The control column e is formed at its lower end as a cylinder a within which is mounted a weight b, as shown a mercury container, which is slidable in the cylinder. The control is rendered inoperative by sliding the weight towards the pivot of the column. This is effected by forcing a column of liquid against a washer c on the weight by means of a hand plunger pump operable by the pilot, the handle of which pump is provided with a pawl for locking it in the depressed position. The pump and cylinder a communicate by means of flexible piping connected to pipe d the upper end of which is arranged in line with the transverse axis of the column e. The depending portion of the column may project beneath the fuselage and may be shielded by a windscreen or be provided with a streamline fairing.
Patent GB-1187474-A (GB)
Title: Improvements in or relating to Aircraft
Inventor: WAKEFIELD GEORGE HIGGINBOTHAM
IPC: B64C30/00
Filed: 1967-05-17
Abstract: 1,187,474. Supersonic aircraft. G. H. WAKEFIELD. 17 May, 1967 [24 May, 1966], No. 22990/67. Headings B7G and B7W. A supersonic aircraft comprises a fuselage 18 (e.g. rectangular), at the forward end thereof a transverse member 15 carrying propulsion means, and having a substantially continuous air inlet disposed along the leading edge of the member 15, the fuselage and the member 15 together have a T-shaped plan. For subsonic flight there may be extended from the aircraft, wing extensions 16, 16a, 24, tail planes 21a and fin 20a, control being by flaps 23, 23a, 35, 35a, 36 and rudders 22, 22a. The fuselage may be tapered at the tail end 19 to provide extra lift. The fuselage may be increased in size as at 30, but this would increase drag; possibly to an unacceptable amount for supersonic flight. The span of member 15 is recommended not to exceed 4 times its chord. There may be retractable windows 28, 28a, 28b. The propulsion means (e.g. ram-jet/turbo-jet combinations) may have the jet pipe 39 adjustable to deflect the engine effux downwards and provide lift. The air inlet may comprise the whole supersonic frontal area, may have the inlet area varied by flaps 44, 44a, and be split by dividers 31, 52, 52a into channels 47 to the engines. The dividers 31, 52a may have transparent panels affording forward viewing to aircrew in cabins 29, 29a.
Patent GB-1337868-A (GB)
Title: Gas-blast circuit breakers
IPC: H01H33/56
Filed: 1971-04-19
Abstract: 1337868 Gas blast circuit breakers SIEMENS AG 19 April 1971 [3 March 1970] 23004/71 Heading H1N A gas blast circuit breaker particularly of the closed gas circuit type using a gas such as SF 6  has resistive heating means 14 responsive to the pressure of the gas to prevent condensation thereof. In a gas blast circuit-breaker having a high pressure (20 atm.) chamber 8 and a blast valve 7 operable to admit the gas to switch chambers 5, 6 the heater 14 is within a metal block 13 in a heat insulated chamber 11 connected by pipes 10, 16 to the chamber 8. The pumping of gas, by a compressor 20, from a low pressure chamber, comprising the circuitbreaker gear housing 3, to the chamber 8 is controlled by a pressure responsive device 22 connected to the housing 3 by the insulator 2. The pressure responsive means 24 responds to the pressure in chambers 11 and 8 to switch the electric heater 14. A contact 32 is controlled by a bimetallic element to switch off the heater if excessive temperatures are reached.
Patent GB-438474-A (GB)
Title: Improvements in spoons for preserves
IPC: A47G21/04
Filed: 1934-08-09
Abstract: 438,474. Spoons. MATHIESON, A. S., 1a, Blythswood Square, Glasgow. Aug. 9, 1934, No. 23032. [Class 128] A spoon is provided with two side-by-side supporting hooks adapted to engage the mouth of a jam jar to prevent the spoon slipping into the jar, the hooks being so placed as to support the bowl of the spoon clear of the table when the spoon is laid down. The hooks may be integral with the handle, as shown, or may be soldered, clipped or screwed thereon. In a modification, the spoon is provided with only one hook terminating in two points which support the spoon in the same manner as the two hooks.
Patent GB-462276-A (GB)
Title: A draught controlling device in central heating boilers
IPC: F23N3/08
Filed: 1936-08-21
Abstract: 462,276. Automatic control systems. STREYFFERT, C. M. Aug. 21, 1936, No. 23087. [Class 38 (iv)] [Also in Group XII] Temperature.-The draught controller 3 of a central-heating boiler is actuated by the boiler temperature or pressure and the connection between this controller and the draught flap &c. 6 comprises an electromagnetic device R whereby the connecting member may be changed in length and the draught controlled in respect of room temperature. As shown in Fig. 2, a room thermostat 18 is adapted to actuate a mercury switch 19 whereby current is supplied to the electromagnet 9 through a relay 21, which normally short-circuits a resistance 25 but puts this resistance in circuit after a time interval. The relay and resistance 25 may be omitted on A.C. supplies. The thermostat 18 is then electrically heated to cause early opening of the switch 19 to an extent determined by an adjustable resistance 36. A time switch 20 may render the device inoperative during certain hours. The electromagnet 9 may be arranged as shown and operate an armature 10, or it may be a solenoid. Adjustment of the normal length of the transmission member may be obtained by a screw 12, and a spring 15 is included to avoid violent pulls and to compensate the varying traction of the electromagnet. The electromagnet may be actuated at will by a manual switch,
Patent GB-185127-A (GB)
Title: Improved means for protecting ball bearings and the like
IPC: F16C33/80
Filed: 1922-08-25
Abstract: 185,127. Kegresse, A. Aug. 29, 1921, [Convention date]. Dust &c., excluding.-A device for excluding dust, water, or the like from a, ball or other bearing comprises annular plates 4, 7 mounted by rings 3, 6 on inner and outer rings 1, 5 respectively, the plates having small clearances with respect to the rings 6, 3 respectively. When the parts are assembled, they are secured by turning over the edges of the rings 1, 5 or by soldering the ends of the rings 1, 5. The space between the plates may be filled with felt, fibre, or an amalgam. One of the rings 1, 5 is secured to a fixed part of the machine and the other is mounted on the rotating part.
Patent GB-773371-A (GB)
Title: Circuit breaker for condensers fitted in housings
IPC: H01H3/00
Filed: 1954-08-10
Abstract: 773,371. Capacitors. BOSCH GES., R. Aug. 10, 1954 [Aug. 27, 1953], No. 23160/54. Class 37. [Also in Group XXXVII] An arrangement comprising a capacitor or a plurality of capacitors mounted within a sealed oil-filled housing is provided with a circuit-breaking device comprising a member attached to a wall of the housing and operating when the housing is deformed in excess of a predetermined amount as a result of an increase in pressure within the housing, to cause the breakage of a frangible conductor arranged within the housing and forming a part of one of the leads to the capacitor assembly. In a first arrangement, illustrated in Fig. 1, a tinned copper strip 21 is arranged in the lead to the capacitor assembly comprising units 11, 12 and a frame 24 of insulating material is arranged to pass over the strip 21 and through a stirrup 25 affixed to the wall 19 of the housing 10. Upon an increase of pressure within the housing the wall 19 extends outwards and the stirrup 25 draws the frame 24 downwards, thus breaking the strip 21 when a certain excess pressure has been reached. Transverse notches are arranged in the strip 21 at the region where it contacts the frame 24 in order to make the strip more readily frangible. In an alternative arrangement, Fig. 3, a U-shaped strip 31 is arranged in the capacitor lead and is formed with a cut and bent-back portion 34 which is attached to an insulating member 35 affixed to the wall of the housing. A further arrangement, Fig. 4, comprises a lead 47 attached to a terminal cap 46 and soldered to a plate 48 to which the capacitor electrode is also connected. In this arrangement an excess pressure within the housing causes the rupture of the soldered connection. Fig. 5 shows an arrangement wherein a spring- loaded intermediate conductor 53 is arranged between the conductors 51, 52 and is held in place by a member 57 which is attached to the wall of the housing, the member 57 being withdrawn on the occurrence of a predetermined excess pressure whereupon the soldered joint B is fractured due to the action of the spring 55.
Patent GB-258621-A (GB)
Title: Improvements in foundry moulding apparatus or system
IPC: B22D33/00
Filed: 1926-09-20
Abstract: 258,621. Grabler Manufacturing Co., (Assignees of McCabe, F.). Sept. 19, 1925, [Convention date]. Plants; metal-pouring; castings, extracting; flasks; guiding flasks.-A foundry plant comprises a track on which flask carriers can be moved past moulding machines, filling stations and machines for shaking out the sand and castings from the flasks. The flasks have aligning pins 48, Fig. 6, and sockets 49 so that they can be arranged in a pile and strengthening ribs and webs 41, 43, 46, 50, 51. The carriers each have a table 75, Fig. 8, with flask positioning surfaces 81, 83 carried by a column 71 from a counter-weighted arm 70 which is suspended, so as to be capable of swinging and rotating about a vertical axis, from a truck 60 running on an overhead rail 10. Rotation is normally prevented bv a latch 88 which can be released bv a handle 93 to allow rotation through 180‹. Flasks are taken one by one from a carrier filled with sand from a hopper 6, Fig. 2, formed by operating the moulding-machine 3 and placed on an adjacent empty carrier which is prevented from swinging by a stop 11, Fig. 1. When the carrier is loaded it is moved along the rail 10 past switches 10<b>, 10<c> to the filling station B, Fig. 1<a>. Here a weight is placed on top of the moulds and they are filled from a ladle 30 suspended from a rail 17 or 18. Gas evolved by the moulds is burned by a row of flames 37. The empty ladles are returned by a rail 16 to be filled from a master ladle 27 and then transferred to their rails 17 or 18 by laterally movable rails 20, 21. The mould weights are then removed and returned by conveyers 36 while the filled moulds are moved along past switches 10<d>, 10<e> to one of the shaking out machines C. Here the column 71 is held by a fork 163, Fig. 15, and spring closed clamps 151 carried by a truck 112 are held apart by hand and advanced to seize the flasks. The truck is then locked and raised by operating a fluid-pressure cylinder 115. The carrier is moved to one side and vibrators 144 are set in operation to loosen the sand &c. which falls through a hole 105 on to a screen. 170, Fig. 3, which discharges the castings into a receptacle 172. The sand is carried by a belt 174, 175, 2, Fig. 1<a>, to the reconditioning station 1 from which it is delivered to the moulding machines by a conveyer 2a, Fig. 2. Spilled sand from the moulding machines falls through an opening 5 on two the lower reach 2b of this conveyer. If a flask-carrier is presented to any machine or operator with the column in front it can easily be rotated through 180‹ after being released by pulling the handle 93.
Patent GB-768032-A (GB)
Title: Improved sweetening process for petroleum distillates
Inventor: RIDLEY KENNETH FRED
IPC: C10G27/08
Filed: 1954-08-11
Abstract: Sour petroleum distillates are sweetened by contacting, in a first zone, with a cupric salt and an adsorbent clay, and contacting the distillates in a second zone with more adsorbent clay, and continuously or periodically transferring at least a portion of the clay from the second zone to the first zone. 0.2-35 per cent by weight of the cupric salt of the weight of the clay may be used. Clays referred to are montmorillonite clays such as fuller's earth, natural bleaching earths, bentonite, magnesite and synthetic adsorbent clays such as dried silica gel. The natural adsorbents may be activated by heating to 500-900 DEG F. or by treatment with dilute acids such as sulphuric or hydrochloric acids.  The distillate may be percolated through a fixed bed of clay, or a fluidized bed of a slurry of the distillate and clay may be used.  The cupric salt specified is cupric chloride.  If the sweetening is effected in the absence of oxygen, the cupric salt is preferably in aqueous solution, the solution being contacted with air or oxygen before being used again.  The distillate may be washed with water before or after the clay treatment in the second zone.  Distillates referred to are gasolines and kerosines; in the examples, a blend, boiling at 120-400 DEG F., of 75 per cent virgin naphtha and 25 per cent kerosine SO2 extract is described.
Patent GB-705321-A (GB)
Title: Improvements relating to the production of steel
IPC: C21C5/04
Filed: 1951-10-08
Abstract: In an open-hearth process for production of steel, the silicon content of the pig-iron to be introduced into the furnace is reduced by a pre-treatment comprising introducing a blast either of oxygen, or containing more oxygen than does air, into the molten pig-iron with formation of an acid slag before introducing the pig-iron into the open-hearth furnace.  The refining in the furnace may also be carried out using a blast of oxygen or containing more oxygen than does air.  Pre-treatment in a ladle p  with an oxygen-air mixture containing 72 per cent. oxygen is described.
Patent GB-1368003-A (GB)
Title: Magnetic recording and or reproducing apparatus
IPC: G11B15/665
Filed: 1972-05-18
Abstract: 1368003 Tape loading; reel driving SONY CORP 18 May 1972 [22 May 1971] 23503/72 Heading G5R In a tape loading system, an arm 23 is rotated from the (full-line) position shown in Fig. 1 to that shown in Fig. 3 to cause a loop of tape 34 to be pulled from a coaxial reels cassette 31, and then partially wrapped around a rotary heads drum 10. During this movement, the inner, higher, side 34a of the loop passes over the top of an arcuately positioned wire 50, and is drawn into contact with the drum, but the outer, lower, side 34b of the loop passes under the wire, and is held away from the drum by fixed guides 51, 52, 53, as in Fig. 3. Just before reaching the final position, the tape enters the region between two fork arms (67a, 67b, Fig. 5, not shown) of a member 67, and a pin 26 on the arm 23 then rotates the member 67 through approximately 90 degrees to the Fig. 3 position whereat a biasing spring (69, Fig. 5) forces the member 67 down a spindle 66 to a position where the tape engages a capstan 62, Fig. 1. The cassette reels 32, 33 are driven directly at their rims by a pulley 82 which may be raised and lowered, as desired, along a screw threaded driving shaft 83 (best seen in Fig. 8), a roller 86 being rotatably engaged with the shaft 83 in order to rotate the shaft and bring pulley 82 to the desired position.
Patent GB-1402676-A (GB)
Title: Pneumatic lift cell
IPC: B65G51/03
Filed: 1973-05-17
Abstract: 1402676 Pneumatic conveying H H BECK 17 May 1973 [18 May 1972] 23521/73 Heading B8A A floor for pneumatic conveying is made up of lift cells, each of which comprises an elastic annular diaphragm surrounding an orifice connecting the upper, supporting, side of the cell to high air pressure on the lower side of the cell. The orifice is sealed by a valve which is opened by a ball disposed in the orifice when a load is applied to the ball so that air then passes through the orifice to support the load. At the same time, air passes via a second orifice to the annular diaphragm which is thus inflated to provide a seal against the surface of the load. Fig. 3A shows the unloaded position of the lift cell, leaf spring 18 closing orifice 17 leading to the diaphragm 16, and extended edges 15 of the diaphragm itself forming a seal for orifice 14. Depression of ball 13 opens both orifices to the pressurized air beneath the cell, Fig. 3B, to provide a supporting air bed and to inflate the diaphragm, sealing the layer of air against the surface of the load. Alternative embodiment (Figs. 4, 5, not shown) provide different valve constructions.
Patent GB-599044-A (GB)
Title: A new or improved latch for fencing gates and other hinged members
IPC: E05B15/00
Filed: 1945-09-13
Abstract: 599,044. Automatic catches. BAYLISS, JONES, & BAYLISS, Ltd., and MOORE, G. Sept. 13, 1945,No. 23585. [Class 44] A gravity-controlled latch, which prevents a gate or like hinged member from swinging beyond its closed position, comprises a lever 10 pivoted, between flanges 12 on a pin 13, to the gate 11 so that it is between the gate and the gate-post, that part of the lever which is below the pivot comprising two arms, one, 15, of which has a hooked nose 16 shaped to ride over and embrace an abutment 18 on the post, thus holding the gate closed until the lever is turned, and the other arm 14 lying on the opposite side of the abutment 18. Either this lower arm 14 or a third arm 20 projecting upwardly from the lever 10 can be used on a finger-piece to clear the nose 16 of the abutment 18; the gate is then pushed open and the lever, being heavier below the pin 13 than above it, returns to the position of Fig. 2. The gate cannot swing beyond the closed position for a stop pin 22 on the gate engages the arm 20 and prevents the arm 14 from swinging to the left of Fig. 2.
Patent GB-334679-A (GB)
Title: Improvements in or relating to gramophones and like sound reproducing apparatus
IPC: G11B3/60
Filed: 1929-08-01
Abstract: 334,679. Palmer, T. Aug. 1, 1929. Turntables. - A resilient coupling is provided between the turntable and its driving spindle so that small irregularities in the driving speed are absorbed. The coupling comprises a rubber or other resilient disc 1 resting on a flange 3 of the spindle 2, pins 4 in the flange 3 engaging diametrically opposed holes in the disc 1. The turntable 5 is connected to the disc 1 by pins 6 which engage other diametrically opposed holes in the disc. The centre boss of the turntable 5 rests on the disc 1 and is recessed to take a ball-race 7 which bears on a washer 8, supported by a shoulder on the spindle 2, and on the flange of a bush 9 which forms a bearing for the spindle 2.
Patent GB-245508-A (GB)
Title: An improved advertising device
IPC: G09F7/22
Filed: 1924-10-08
Abstract: 245,508. Barker & Dobson, Ltd., and Town, W. R. Oct. 8, 1924. Radial boards and like elements, rotating and oscillating; actuating; illumination, changing advertisements by controlling.-In moving signs in which a flat member is pivoted about a vertical axis to two arms of a bracket &c. carried on a wall &c., the member D is adapted to receive replacable advertisements. The member may comprise a framework which receives two advertisement plates back to back, and the plates may be translucent and spaced sufficiently far apart to accommodate between them electric lamps. The upper spindle d<1> may have an enlarged conical base to prevent the member D rising out of the lower spindle bearing c<3>. The sign is rotated by air currents, which have less velocity near the wall than away from it. Obliquely arranged wind vanes may be fitted to the sign.