baber/WOPTO huggingface dataset:
Patent GB-1505593-A (GB)
Title: Internal combustion engine with auxiliary combustion chamber
IPC: F01L9/10
Filed: 1975-02-28
Abstract: 1505593 Controlling fluid operated intake valves in I C engines TOYOTA CHUO KENKYUSHO KK 28 Feb 1975 [28 Feb 1974]  8475/75 Heading F1B An I.C. engine has, for each cylinder, a main combustion chamber (77) and inter-connected thereto an auxiliary combustion chamber 76, into which fuel is supplied by a duct 38 controlled by an inlet valve 35, operated by fluid-pressure in synchronism with engine rotation e.g. by a pump 1. For a two-cylinder engine, the pump 1 may include a cam-shaft 4 rotated at half crank-shaft speed reciprocating two pump pistons 2 by two cams 5 phased 180 degrees from one another. The pump generated pressure pulses are applied above a valve piston 31 attached to a valve stem 37 of valve 35 to move the valve downwards against the force of a return spring 36. To bleed air from an hydraulic system, calibrated orifices 42, 48 can be provided in the pump and valve-operating cylinders 1, 41 adjacent the end of piston strokes, and the position of these orifices may be varied. Engine braking. The inlet valves may be inhibited from opening during engine braking by a circuit which vents hydraulic fluid. Intake manifold vacuum is sensed by a diaphragm servomotor to close a switch in an electric circuit incorporating an electromagnetic on-off valve. In a further embodiment, the electric circuit is omitted and replaced by a manifold vacuum operated hydraulic fluid on-off valve. 4-cylinder engine. In Fig. 8 four inlet valves 35 are opened, in firing sequence, by pressure fluid (lubricating oil) supplied from a rotary distributer valve 6. A gear-pump G supplies oil from sump 6' to the engine E for lubricating and to a troichoidal pump 91 for valve operating. A constant pressure valve 95 is connected in parallel with the trochoidal pump 91, and in parallel to this is an electromagnetic pressure venting valve 94 operated during engine braking by an intake manifold vacuum-sensitive circuit 54. The troichoidal pump 91 supplies pressure fluid to the rotary distributer valve 6, both valve and pump being rotated by the same shaft at half crank-shaft speed via a timing chain gear (not shown). In order to reduce shock waves leading to inlet valves 35 a throttle device (not shown) may be provided in each conduit 20. The throttle devices may include a chamber of twice the diameter of the conduit 20 leading to a stepped construction.  The arrangement employing a troichoidal pump and rotary distributer valve may also be used for a two-cylinder engine.
Patent GB-403548-A (GB)
Title: Improvements in and relating to change speed gears, particularly for motor cycles, boat engines and the like
IPC: B62M25/00
Filed: 1933-03-21
Abstract: 403,548. Change-speed gearing; motorcycle control levers. AKTIESELSKABET FISKER & NIELSEN, and FISKER, P. A., 30, Peter Bangsvej, Copenhagen. March 21, 1933, No. 8485. [Class 80 (ii).] Three-speed gearing comprises a gear 13, Fig. 1, slidably splined on a driven shaft 8. The gear 13 is shown in its mid position engaging a middle gear 3 fast on a driving- shaft 1, so yielding second speed. End gears 2, 4 fast on the shaft 1 mesh constantly with gears 11, 12 which are loose on the shaft 8 and carry clutch pins 16 on their inner faces. The gear 13 has through-holes 15, Fig. 3, which are drivingly engaged by the pins 16, when the gear 13 is moved to its end positions, to yield first and third speeds respectively. The gear 13 is operated by a fork 19 secured to a sliding striker rod 20 adapted to be locked in gear positions by a spring plunger 31. The rod 20 is controlled by a hand lever 24 which engages a flared hole 30 in the rod. An adaptation to a motor-cycle is shown in Fig. 4. The lever 24 is pivoted upon a bracket 28 secured to a frame bar 25 and extends up through a slotted guide plate 26 in front of the saddle 27.
Patent GB-1369772-A (GB)
Title: Apparatus including a fluid seal
IPC: F16J15/40
Filed: 1973-02-21
Abstract: 1369772 Gaseous seals CREUSOT-LOIRE 21 Feb 1973 [23 Feb 1972] 8590/73 Heading F2B Means, e.g. for sealing against a consumable electrode 1 being fed into an electro-slag refining apparatus comprises a wall portion defining a passage for the electrode 1 and having means 10 for introducing an inert atmosphere, e.g. argon to prevent oxidation, and a chest 3 connected to a sealing gas supply 12, e.g. air or nitrogen, having at least one outlet 13 arranged to direct a sheet of sealing gas upwardly and obliquely with respect to the electrode 1. The chest 3 is movably supported on a fixed, watercooled chest 4 through inflatable sealing joints 16, 17, an electrical insulator 5 spacing the chest 4 from an ingot mould 6. Cooling water is circulated through the chest 4 via conduits 8, 9, and pressurized air or nitrogen supplied to a further chest 7 impinges around the electrode 1, ensuring centring of the chest 3 relative thereto.
Patent GB-512311-A (GB)
Title: Improvements relating to sintered compositions
IPC: B24D3/08
Filed: 1939-03-17
Abstract: 512,311. Compositions containing metals. TOOL METAL MANUFACTURING CO., Ltd. March 17, 1939, No. 8624. Convention date, March 18, 1938. Addition to 506,964. [Class 70] To the composition of the parent Specification, viz. a sintered hard composition consisting essentially of aluminium oxide and from 20 to 40 per cent. in all of at least one metal such as iron, nickel, or cobalt, is added up to 10 per cent. of an oxide or oxidic compound to reduce the sintering temperatures and improve the cutting properties. Additions specified include silicic acid, calcium oxide, kaolin and porcelain powder.
Patent GB-1023493-A (GB)
Title: Graft copolymers
IPC: C02F1/54
Filed: 1963-03-05
Abstract: Graft polymers are made by irradiating with high energy ionizing radiation to a dose of 0.1 to 30 megarads a water-soluble or water-swellable polymer, contacting the irradiated polymer with oxygen to introduce hydroperoxide groups therein, and then contacting the peroxidized polymer with an aqueous dispersion or solution of a polymerizable monomer in the presence of a dissolved catalyst capable of producing free radicals by reaction with hydroperoxides, e.g. a ferrous, titanous or mercurous salt. Specified substrate monomers are starch, casein, algin, dextrin, dextran and alkylene oxide condensates.  Monomers specified are acrylic and methacrylic acids and their alkali metal salts and amides, acrylonitrile, vinyl pyridine, styrene and methyl methacrylate. Salts may be formed from graft polymers of acidic monomers.  The examples describe the grafting on to starch (potato or corn) and polyethylene oxide of acrylic acid, acrylamide, methyl methacrylate, and the grafting on to potato starch of styrene.  The resulting graft polymers may be used as flocculating agents.ALSO:Starch, casein, algin, dextrin, dextran and alkylene oxide condensates such as polyethylene oxide are irradiated and treated with oxygen to introduce hydroperoxide groups therein and acrylic acid, methacrylic acid, their alkali metal salts and amides, acrylonitrile, vinyl pyridene, styrene and methyl methacrylate are grafted thereon in the presence of a catalyst to produce a flocculating agent.  The flocculating agents are used to treat suspensions of carbon black, kaolin and the red mud resulting from the treatment of a bauxite.
Patent GB-827235-A (GB)
Title: Improvements in or relating to cooling towers of concrete
Inventor: BURCHARDT KURT
IPC: E04H5/12
Filed: 1957-03-16
Abstract: 827,235. Cooling towers. KIRCHNER, E. March 16, 1957, No. 8727/57. Class 20(1) [Also in Group XIII] A cooling tower is constructed from prefabricated concrete building elements X, Y, Z, W each of which comprises a vertical part 7 and a horizontal part 8. The vertical parts are superposed in columns and have holes bored through them to house stress rods 9 which are anchored in the rim 2 of the foundation. Nuts 12 engage dished members 30 to stress the rods which are connected together by bushings 23. Adjacent arms 8 are held together by joining reinforcing wires 18 and filling the gap 17 with cement. The structure is built such that in adjacent stories the arms 8 are at right angles. Wall plates 19 overlap horizontally and are held by vertical weather strips. The rods 4 extend above the top of the building elements to support a flange beam, roof plates and moulding beams placed over the roof plates and may support a railing and a suspension rod for a jib crane. Some of the arms 8 may protrude from the side of the building to support a staircase.
Patent GB-766866-A (GB)
Title: Improvements in or relating to synthetic resin dispersions and the preparation of impregnated sheet material therefrom
IPC: D06M15/31
Filed: 1955-03-25
Abstract: Aqueous dispersions for impregnating sheet material comprise (1) polymers of vinyl or vinylidene compounds, e.g. styrene, methyl styrene, acrylates, alkacrylates, acrylonitrile, vinyl or vinylidene halides, or copolymers of these, e.g. vinyl chloride-vinylidene chloride copolymers; (2) a non-ionic dispersing agent which is soluble in water up to about 40 DEG  C. but insoluble at higher temperatures, e.g. octyl phenyl or dodecyl phenyl polyglycol ether or the condensation product of ethylene oxide and rosin; and (3) a water-soluble polyvalent metal salt. Plasticizers, e.g. butadiene-styrene copolymers, organic esters, or organic phosphate salts, fillers, e.g. calcium carbonate, calcium sulphate, infusorial earths or bentonite clays, and thickening agents, e.g. methyl or methyl carboxy cellulose, may be added.  The salt may be a chloride, nitrate, sulphate or acetate of magnesium, calcium, strontium, aluminium, cadmium, tin, copper, iron, chromium and cobalt.  The pH of the latex is preferably kept between 6.0 and 7.0 by adding a buffer, e.g. alkali or alkaline earth metal carbonates, bicarbonates or hydroxides.  Fabrics, e.g. cotton, flannel, textiles, natural or synthetic fibres, felted materials, mats or papers are dipped in or sprayed with the latex and heated at 95 DEG  to 120 DEG  C., whereby the dispersing agent is rendered insoluble and coagulation occurs.ALSO:Fabrics, e.g. cotton flannel, are stiffened by impregnating with an aqueous dispersion of a vinyl or vinylidene resin containing a water-soluble polyvalent metal salt and a non-ionic dispersing agent which is soluble in water up to about 40 DEG C. and insoluble at higher temperatures, heating to insolubilize the dispersing agent, drying, treating with a volatile solvent for the resin and allowing the solvent to evaporate.  The resin may be polystyrene or a vinyl chloridevinylidene chloride copolymer. The dispersing agent may be octylphenyl- or dodecylphenyl-polyglycol ether or a condensation product of ethylene oxide and rosin.  The fabric is dipped in the dispersion, stripped between rollers, heated by steam, dried in an air oven, blanked to the required shape and treated with toluene, petroleum naphtha, methyl ethyl ketone or cyclohexanone.  The polyvalent metal salt may be a chloride, nitrate, sulphate or acetate of magnesium, calcium, strontium, aluminium, cadmium, tin, copper, iron, chromium or cobalt.  The dispersion may also contain plasticizers, e.g. butadiene-styrene copolymers, organic esters or organic phosphate salts, fillers, e.g. calcium carbonate, calcium sulphate, infusorial earths or bentonite clays, and thickening agents, e.g. methyl or carboxy methyl cellulose.
Patent GB-725456-A (GB)
Title: Improvements relating to the production of shell moulds for casting
IPC: B22C9/12
Filed: 1953-03-31
Abstract: In a method of preparing a sand-resin mould or core, the volatiles are driven off from the mould or core prior to pouring operations by heating it in a non-oxidizing atmosphere. Preferably the mould is heated for 1/4 to 1 1/2 hours at a temperature of from 300 DEG  F. to 1400 DEG  F., in an atmosphere of natural gas, methane, carbon monoxide, or helium.  Alternatively the volatiles driven from the resin binder function as a non-oxidizing atmosphere.  The heating in the non-oxidizing atmosphere is preferably carried out after the mould is stripped from the pattern plate after curing by baking in contact with the pattern plate, but alternatively the normal air curing step is replaced by baking the mould in the non-oxidizing atmosphere while in contact with the pattern.  Phenol formaldehyde and melamine formaldehyde are quoted as examples of resin binders.
Patent GB-387860-A (GB)
Title: Improvements in ignition magnetos for internal combustion engines
IPC: H02K21/20
Filed: 1932-03-29
Abstract: - 387,860. Magnetos. SOC. DES MOTEURS SALMSON, 68, Rue Pierre Charron, Paris. March 29, 1932, No. 9002. Convention date, March 31,1931. [Class 35.] In an ignition magneto having a number of changes of direction of the flux in the magnetic circuit greater than the number of sparks required, the number of equidistant bosses of the interrupter is such that only one break occurs for an uneven number of flux changes greater than one. The object of the invention is to avoid the transference of metal from one contact of the interrupter to the other as would be the case if the primary current were in the same direction for each break. In the case of a magneto having a rotating magnet 1, as shown, the pole arms 5, 6 at opposite ends are staggered so that six flux changes take place per revolution, but the interrupter has two diametrically opposite cam bosses so that two only of the flux changes are utilized for spark production, the primary current being reversed at each break. In magnetos of the type shown, the number of arms 5 or 6 on each of the magnet poles 3, 4 in an uneven multiple of one-half the number of sparks required per revolution. The Specification as open to inspection under Sect. 91 describes also rotating magnets in which the pole arms at each end are unsymmetrically distributed. This subject-matter does not appear in the Specification as accepted.
Patent GB-811196-A (GB)
Title: Improvements in or relating to couplings for securing trailers to vehicles
IPC: B60D1/04
Filed: 1957-03-19
Abstract: 811,196. Vehicle couplings. KARNATH, K. J. March 19, 1957 [March 26, 1956; May 8, 1956], No. 9027/57. Class 103(5) A coupling has a fixed hook 2 and a shank 1 on which is slidable a sleeve 4 to which the bolt 5 is attached. Automatic coupling is effected by the eye 6 of the trailer pushing back the bolt 5 against the action of the spring 3 and disengagement is effected by the lever 9 pivoted at 10 and which acts through pins 16 to withdraw the sleeve 4 and bolt 5. The guide 7 for the trailer eye may be fixed or in part movable and means may be provided for holding the sleeve in its extreme position.
Patent GB-1171643-A (GB)
Title: Improvements in or relating to methods of reclaiming bulk material
IPC: E02F3/18
Filed: 1966-10-20
Abstract: 1,171,643. Reclaiming bulk material from piles. BARBER-GREENE CO. 20 Oct., 1966 [24 Oct., 1965], No. 9093/69. Divided out of 1,171,642. Heading B8E. [Also in Division E1] Material is reclaimed from a stockpile by digging into the side face of the pile at its base in a path along the length of the face to create a stream of material flowing from the pile whilst digging into the upper part of the side face occurs to create a downward flow of material that is confined along one downward side of the flow to form a second stream of material that subsequently merges with the first stream, the combined streams being caused to move angularly away from the face. The first stream is created by a bucket wheel 8, the second stream is created by a rotor 26 mounted on a boom 18a which confines the downward flowing stream of material on one side as specified above, and the streams are combined on and removed by a conveyer 20. The reclaimer forms the subject-matter of Specification 1,171,642.
Patent GB-1037352-A (GB)
Title: Improvements in or relating to sound-attenuating mufflers
IPC: F01N13/18
Filed: 1964-03-04
Abstract: <PICT:1037352/C1/1> In an exhaust silencer construction adapted to be coated with a ceramic glaze, the partitions 9, 11, 13 are supported in the casing 3 by dimples or similar protrusions 59, 61, 63, to leave gaps around the edges of the partitions so that when the silencer is dipped in the coating material, the edges of the partitions become coated.  Drain apertures 69, 71, Fig. 2, are also provided in the partitions.  In Fig. 5 (not shown) the protrusions are formed by longitudinal ribs 173 and in Fig. 11 (not shown) by pyramid-shaped projections.  In Fig. 9 (not shown) the protrusions are formed by projections 275 in the flanges of the partitions.
Patent GB-622774-A (GB)
Title: Improvements relating to radio frequency heating apparatus
IPC: H05B6/78
Filed: 1947-04-03
Abstract: 622,774. Dielectric heating. STATIC CONDENSER CO., Ltd., and TIBBS, C. E. M.. April 3, 1947, No. 9147. [Class 39(iii)] A high frequency dielectric heating oven has its lid biassed towards the open position, but held closed during the heating period by the attraction of an electromagnet. In the preferred embodiment, the lid b, hinged about a pin c, is raised into the open position by two tension springs e, secured to brackets d and to brackets on the lid side walls. The lid-retaining electromagnet h is below the cooking platform k, and an inturned part m of the lid completes the magnetic circuit when the lid is closed down. On interrupting the high frequency supply, the electromagnet h is de-energised and the lid opens.
Patent GB-609920-A (GB)
Title: Improvements in or relating to terminals for electric components
IPC: H01B17/26
Filed: 1946-03-25
Abstract: 609,920. Binding-posts; cable bushing. STANDARD TELEPHONES & CABLES, Ltd., and LEE, E. C. March 25, 1946, No. 9164. [Classes 36 and 38 (i)] A terminal for an electrical component enclosed in a metal casing 1 comprises a resilient washer 6, held compressed in an aperture in said casing between a ceramic bush 3 and an insulating washer 7 on the outside and inside respectively of the casing. The clamping may be effected by a rivet 11 passing through apertures in the bush and washers. Terminal tags 9, 10 are clamped by the rivet against the top of the bush and the lower face of the washer 7 respectively. Fig. 3 shows a modification wherein the rivet is replaced by a nut and bolt 13, 12, the bolt being apertured for the passage of a wire 15 sealed therein by solder 16.
Patent GB-618873-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S1/24
Filed: 1946-03-25
Abstract: 618,873. Radio navigation. SADIR-CARPENTIER. March 25, 1946, No. 9177. Convention date, March 30, 1945. [Class 40 (vii)] A radio system for assisting navigation along an approach line comprises means for transmitting a television image of the chart of the operating area and for transmitting from two spaced points, pulse signals of predetermined phase relationship which are effective to select at a receiver a portion of the television image, the portion selected being dependent upon the position of the receiver. In the approach-line beacon system shown in Fig. 2, transmitter A emits television signals, Fig. 3, corresponding to the chart covering the whole operating zone, the signals including synchronizing signals 2 comprising a pair of pulses separated by a 0.5 microsec. pulse corresponding to 100 per cent carrier. In each frame synchronizing interval are transmitted a signal 9 comprising pulses 10, 11 spaced by 3 microsec., Fig. 4, and a 15 microsec. pulse 12 corresponding to zero carrier. The station B has a receiver which selects the synchronizing signals 2 which are used to control the emission of pulses 14, Fig. 5, of 40 microsec. duration. Transmitter C similarly radiates pulses 16, Fig. 6, synchronized with the signal 9 in the A station.transmission. The mobile receiver, Fig. 8, comprises a single aerial 20, R.F. amplifier 21, mixer 22 and local oscillator 23, feeding two I.F. channels 24, 25. The beacon frequencies are so arranged that the signals from transmitters A and C pass through amplifier 24 while the signals from transmitter C pass through amplifier 25. The detected signals from 26 are fed to a circuit 27 separating out the pulse 12, Fig. 4, which is used to control the frame time-base generator 29 which produces the waveform shown in Fig. 17 for application to the horizontal deflecting system 30 of the C.R. tube indicator 31. The B signals after detection at 32 are fed to a circuit 33 which selects the 40 microsec. pulses 14, Fig. 14, and feeds them to control the line sweep generator 34. The line sweep feed to the vertical deflecting plates 35 is as shown in Fig. 16 and occupies only a fraction of the total line period of the television transmission and thus causes the raster on the C.R.T. screen to correspond to a portion of the picture of the chart lying. immediately ahead of the craft. The impulse 14 is also mixed at 36 with the vision signals from detector 26 so that the relevant portion of each line signal is elevated above the " black " level, as indicated in Fig. 15, the resultant signals being fed to the control grid of the C.R. tube. The pulse 16, the exact timing of which depends upon the azimuthal position of the craft with respect to transmitters A and C, occurs during the frame fly-back across the lower edge of the picture and produces a bright spot which is central when the craft is correctly on course,
Patent GB-292715-A (GB)
Title: Improvements in or relating to detachable cylinder heads for internal combustion engines
IPC: F02B69/00
Filed: 1927-04-04
Abstract: 292,715. Hodgson, A. E., and Jones, N. C. April 4, 1927. Cylinders, combustion chambers of, and arrangement of igniters in. - An engine, designed for petrol or paraffin, is modified, so as to obtain the same power when using producer gas, by replacing the cylinder head by a new head b, having a sloping roof g, and dimensioned so that the clearance space is reduced by 50 to 75 per cent. The roof g may slope in two or more stages and, in cross-section, it may be straight or domed. The sparking plug may be arranged at k, over the inlet or the exhaust valve, or over the piston.