baber/WOPTO huggingface dataset:
Patent GB-168254-A (GB)
Title: Improvements in or connected with sliding valves
IPC: F16K24/02
Filed: 1920-09-13
Abstract: 168,254. Sedcole, J., and Laycock, Ltd., W. S. Sept. 13, 1920. Multiple-way valves.-A parallel slide stop valve for use in steam-heating arrangements of railway carriages comprises, in combination, a slide valve 2, 2 engaged by a bolt 3 hinged to an arm projecting from and actuated by a spindle 5 formed as a rotary conical plug vent valve. When the main valve 2 is closed, the vent valve 5 places the exit side 9 of the main valve into communication with the atmosphere through ports 12, 14. The vent valve can be removed by removing the screwed plug 21. In a modification the vent plug is tapered in the opposite direction and is removable through the stuffing-box end 6.
Patent GB-338961-A (GB)
Title: Improvements in transit mixers for concrete and like materials
IPC: B28C5/42
Filed: 1929-08-29
Abstract: 338,961. Paris, H. P. Aug. 29, 1929. Rotary mixers. - A concrete mixer of the kind comprising an elongatedrotary drum mounted on a tiltable sub-frame on a motorvehicle has a charging and discharging orifice at its rear end so as to be rotatable during the charging and discharging operations; the drum is fitted with two sets of mixing vanes, and the water tanks are also mounted on the sub-frame. The drum 1 is supported on rollers 21 mounted in frame members 20 on a sub-frame 2 pivoted at its rear end to the main frame 3 of the motor-vehicle. It is tilted by means of lifting mechanism 9 and, in the form shown, is rotated by chain gearing driven from the prime mover through a telescopic shaft 6. The rear end of the drum is open and truncated, and is fitted with a door 11. The water tanks 7, connected by a pipe 71, are mounted on the frame members 20, and are discharged by the operation of a cock 74. The driving mechanism may comprise a shaft coaxial with the pivot 23 and driving the drum by worm or chain gearing. The drum may be driven directly by the rear axle, through clutch and chain gearing, the axle being raised to effect rotation of the drum while the vehicle is at rest. The drum is fitted with oppositely inclined blades 19, 19<a> and with radial rods 19<b>, Fig. 11, to effect the mixing.
Patent GB-207654-A (GB)
Title: Improvements in combined speedometer and odometer instruments
IPC: G01P3/495
Filed: 1922-09-29
Abstract: 207,654. Seignol, E. Sept. 29, 1922. Magnetic speed indicators; registering distance upon counters.-In a combined speedometer and odometer a spindle 1, connected by a pulley 2 to the member of which the speed is to be measured, carries a magnet 3 acting on a disc 4<b> controlled by a spring 4<d>; the disc 4b is mounted on a shaft 4 that carries a pointer 4a moving over a dial. The body 6 of the odometer mechanism forms a bearing for the spindle 1 which carries an eccentric sheave 6<a> on which is mounted a toothed wheel 7. A spindle 7<b>, secured at one end in the body 6 and carrying the external pinions 14 of the odometer train, projects into a slot 7a in the wheel 7 and so holds it against rotation. The teeth of the wheel 7 are brought into mesh under the action of the eccentric with internal teeth on a slightly larger wheel 8 having a different number of teeth. In a modification the pinions 14 are adapted to mesh with external teeth on the figure discs of the odometer. The speed indicator may be fitted with a dial as shown, or may have figures on the side fare nf a drum, the figures then being observed through a window in the casing of the instrument.
Patent GB-488184-A (GB)
Title: Process for the production of phenol-formaldehyde condensation products
IPC: C08G8/28
Filed: 1936-09-29
Abstract: Refers to multi-stage processes in which, in the final stage, a reaction mixture composed of 1 mol. of phenol to 2,2-3 mols. of formaldehyde is heated in so strongly alkaline a solution that the condensation product remains in solution, which solution is then neutralized or weakly over-acidulated and the entire batch or the separated resin distilled and hardened, and consists in conducting at least one pre-final stage with 1 mol. of phenol to about 1 to not more than 2 mols. of formaldehyde, also under such strongly alkaline conditions that the resin does not separate.  In examples: (1) 100 grams of crystallized carbolic acid is heated under reflux for 20 minutes with 100 grams of 30 per cent formaldehyde and 21 grams of double normal caustic soda; 195 grams of 30 per cent formaldehyde are then added and heating continued for 40 minutes after which there are added 5 grams of phthalic acid dissolved in 20 grams of glycerine and the resin is isolated by distillation under vacuum; (2) 100 grams of crystallized carbolic acid are heated under reflux for 10 minutes with 310 grams of 30 per cent formaldehyde and 45 grams of double normal caustic potash, 50 grams of carbolic acid are added and heating continued for 15 minutes, then 85 grams of 30 per cent formaldehyde are added and heating continued for a further 15 minutes after which 65 c.cs. of double normal lactic acid are added followed by vacuum distillation.  Other phenols and aldehydes or their polymers may be employed; also other bases, e.g. strong organic bases.  Specifications 267,901 and 290,963, [both in Class 2 (iii)], are referred to.
Patent GB-191152-A (GB)
Title: Improvements in strainers for water supply pipes and the like
IPC: E03F5/14
Filed: 1921-10-06
Abstract: 191,152. Briggs, E. R. Oct. 6, 1921. Strainers having sheet straining-materials. - A plurality of strainers a are arranged symmetrically about the axis of a carrier b which can be rotated in a casing d having end covers e, f suitably fitted for connection in a pipe line. The apparatus shown comprises three strainers a mounted in cylindrical passage-ways in the carrier, through two of which water from the pipe line is passing, while the third is in position opposite to a cleaning door h. Packing-rings l and an internal cover k, pressed against the end of the passage-way by a spring, or by a screw, prevent escape of liquid through the door h. The strainers are preferably of the double-cone shape shown. The carrier is rotated by means of a worm o and rack p.
Patent GB-270563-A (GB)
Title: Improvements in and relating to the casting of steel in ingot moulds
IPC: B22D35/04
Filed: 1926-10-22
Abstract: 270,563. L³ngen, R., and L³ngen Ges., Geb. Oct. 22, 1926. Moulds. - Conduits for ingot moulds are provided with enlarged cavities near the mould to collect impurities from the steel and feed the shrinkage head. These enlarged cavities 8 may be formed in moulded blocks 7 and may connect adjacent conduit blocks, or a conduit to a mould by openings 12, 10. In a modification the opening 10 may be formed in the top of the block, a tube being inserted to draw the metal from the bottom of the cavity. To facilitate erection of a network of conduits and blocks, a bed-plate is used having grooves 16, Fig. 4, for the conduits branching from the pouring opening 15, and recesses 21 for the hollow blocks over which the moulds 20 are placed. The blocks are built of parts which in air-dried condition are cemented together and then burnt. Additional cavities are provided by blocks in recesses 17, 18 to feed the conduits.
Patent GB-601894-A (GB)
Title: Improvements in or relating to cylinders for internal combustion engines
IPC: F02F1/14
Filed: 1945-10-10
Abstract: 601,894. Cooling cylinders. RICARDO, H. R. Oct. 10, 1945, No.-26459. [Class 7 (ii)] A cylinder for an internal-combustion engine consists of a block preferably with a fixed head A<1> in which is inserted a liner F surrounded by a coil of square section wire which defines a helical water passage H, the liner being secured with its upper end against the packing L by a gland-like component K which butts against a shoulder F<1> on the liner and is secured to the block by studs. Coolant water from a gallery B, which may be common to a number of cylinders, circulates around the liner in the passage H and is directed in a stream between the engine valves by a jet J<3> fed from a chamber K and a pipe J<2> from the upper end of the cylinder. In a modification, for a uniflow scavenged two-stroke engine the helical passage is formed between the scavenge ports and the cylinder head and the coolant water is prevented from reaching the said ports by a packing. The diameter of the coil G is such as to give a close but not necessarily a contact fit within the cylinder block.
Patent GB-246104-A (GB)
IPC: G01R11/36
Filed: 1925-10-22
Abstract: 246,104. Bornmann, C. Jan. 14, 1925, [Convention date]. Electromagnetic current meters; induction motor meters. - An indicating or integrating ammeter comprises an induction motor meter or wattmeter having the voltage core b magnetically saturated, the usual magnetic shunt c and permanent brake magnet a being omitted, so that the meter readings are indepedent of fluctuations of supply pressure. The increased driving effect of the current coils d consequent upon a rise of supply pressure is counterbalanced by an equivalent increase of braking effect. A spring f is provided in an indicating instrument. The current to be measured is controlled by varying a resistance or capacity e.
Patent GB-173053-A (GB)
Title: Improvements in or connected with carburettors for internal combustion engines
IPC: F02M7/22
Filed: 1920-09-17
Abstract: 173,053. Hamilton, J. R. Sept. 17, 1920. Spray carburettors. - In a carburettor having slidable fuel and air valves simultaneously actuated through inclined-surface or cam mechanism, the slidable member carrying the fuel-valve is disposed externally of and above the fuel-nozzle and moves in alignment with the axis of the nozzle, and the air inlet is in the form of a single plate which moves in the same direction as, or parallel with, the fuel-valve. In the form shown in Fig. 1, the air-valve l<1>, which is actuated by a Bowden wire or the like m, is provided with an inclined slot n which engages with a pin o on a collar p loosely mounted on the stem g<2> of the fuel-valve i, the collar p having a cam-surface t which bears against a projection s on a nut or ring r on the stem g<2>. In a modification, the pin o is carried by a nut screwed upon the end of the stem g<2> and held against axial movement by a flange. In a further modification, the fuel-valve stem g<1>, Fig. 4, is provided with a cam-surface g<5> and is lifted by a link v pivoted at w to the air-valve. l<2>. More than one fuel-nozzle may be provided, the nozzles being controlled either by separate valves or collectivelv.
Patent GB-337343-A (GB)
Title: Change-speed mechanism
IPC: F16H61/02
Filed: 1929-08-01
Abstract: 337,343. Triumph Cycle Co., Ltd., Phillips, J. A., and Kirkland, T. A. S. Aug. 1, 1929. Divided on 336,336, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. Variable-speed gearing. - In a change-speed gear comprising two pairs of gears, always in mesh, of which the driven gears are selectively locked to a shaft by a sliding dog clutch member 16, this member and rack-and-pinion gear for operating it are journaled in a common block 20. The member 16 is keyed to a lay shaft 14 and has an external groove engaged by a projection on a segment 27 formed on its exterior with rack teeth for engagement with a pinion 35. Three recesses in the segment co-operate with a spring- pressed top 38 to hold the clutch member in its three positions. The block 20 is screwed to the face 23 of the combined crank and gear case 2, its flange 24 forming a spigot for positioning the case cover.
Patent GB-992056-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: VICKERS VALENTINE JOHN
IPC: H02K9/18
Filed: 1960-08-02
Abstract: 992,056. Cooling dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Aug. 1, 1961 [Aug. 2, 1960], No. 26718/60. Heading H2A. In a dynamo-electric machine in which a gaseous cooling medium, e.g. hydrogen, is circulated by a blower 21 having a stator 23 and a co-operating rotatable member 22 mounted on one, 8, of the rotor shaft ends 7, 8 adjacent one end of the rotor body, at least some of the medium passes around a circuit comprising passages in the rotor 12, a first stage cooling means, the blower 21, a second stage cooling means, and then back to the rotor. In the turbo-alternator shown, partially cooled hydrogen fed from the blower outlet chamber 27 passes through a hole 35 in a baffle 31 into two axial ducts 36, 37, Fig. 3, and then circumferentially in opposite directions through the L.H. sections of coolers 15, 16 (the second cooling means). At this stage the hydrogen has free access to the outer periphery of the laminated stator core 10, and divides into several parallel paths. The first is through vents 49, a chamber 50, blower rotor holes 51, and rotor end bell cover holes 52 to the hollow conductors of the rotor winding from which it is exhausted into the air gap by rotor core radial vents 71; some hydrogen also passes through the rotor winding overhang and end bell cover vents 69 into an annular chamber 70. The second path is through vents 55, chamber 56, vents 58 and chamber 59 from which the hydrogen passes through the rotor winding conductors and their overhang in a similar way to that at the L.H. end of the machine. A third path is through stator core radial ducts 64 which are closed at the air gap, axial ducts 65, and radial ducts 66 that are closed at the core outer periphery. Two other paths are through stator core closed radial ducts 67 and continuations of the axial ducts 65 to the ends of the stator. The paths rejoin at the air gap from which the gas flows through an annular chamber 68, the R.H. sections of coolers 15, 16 (the first cooling means), chamber 75, vent 80, central duct 39, vent 82, and the annular chamber 70 to the blower input. The stator winding 18 has hollow conductors through which liquid coolant is fed from annular headers 19, 20 connected to an external cooling circuit. Specification 748,826 is referred to.
Patent GB-1524073-A (GB)
Title: Feed trough for metal powder in combination with a pair of compaction rolls
IPC: B65G47/19
Filed: 1976-06-24
Abstract: 1524073 Hoppers BRITISH STEEL CORP 24 June 1976 [24 June 1975] 26792/75 Heading B8S A trough 10 is located for feeding metal powder between a pair of compaction rolls 2, 4, the trough comprising a pair of end plates 12 between which side plate structures 14, 16 extend, each such structure comprising plates 18, 20 to the latter one of which a thin plate 22 of springy material is attached, each plate 22 engaging the peripheral surface of one of the rolls 2, 4 and a feed slot being defined between the lower edges of the plates 22, and in order to be able to vary the rate of feed of material from the trough 10 the latter is vertically displaceable relative to the rolls 2, 4 by means of a pair of rams 26 (only one shown) which are respectively located adjacent the plates 12, each ram 26 being mounted on a bracket 30 located on bearing chock assemblies 6, 8 of the rolls and connected to a bracket 28 which projects outwardly from the associated trough end plate 12.
Patent GB-661017-A (GB)
Title: Improvements in valves for flushing cisterns
IPC: E03D1/30
Filed: 1948-10-15
Abstract: 661,017. Valve discharge water waste preventers. EVES, S. F. Oct. 15, 1948 [Feb. 1, 1945, May 8, 1945], Nos. 26868/48 and 26869/48. Class 26 [Also in Group XXIX] A cistern discharge valve 12, Fig. 1, suspended from one end of a lever 18 is opened by operation of a cam 22 which rocks the lever and is held open by engagement of a suction cup 21 with a flat plate 17, the valve closing after an interval as water or air leaks into the cup through a small channel in the face of the plate 17. In a modification, a weighted arm 24, Fig. 4, carries the flat plate which is raised by operation of a handle 23 to engage the suction cup and then released, so that the weight pulls down the cup to open the valve which subsequently closes after leakage of water or air into the cup.
Patent GB-854538-A (GB)
Title: Purification of caprolactam
Filed: 1959-08-06
Abstract: <FORM:0854538/IV(b)/1> Crude e -caprolactam containing not more than about 10% by weight of impurities oxidizable by potassium permanganate is purified by forming a mixture consisting essentially of caprolactam, water, and NaOH and/or KOH, the weight proportions of the three components lying within the quadrilateral on an equilateral triangular composition bounded by the lines connecting the points at (1% caprolactam, 69% alkali metal hydroxide, 30% water), (1% caprolactam, 19% alkali metal hydroxide, 80% water), (55% caprolactam, 5% alkali metal hydroxide, 40% water), and (93% caprolactam, 5% alkali metal hydroxide, 2% water) (see the Figure); bringing the mixture to 15-75 DEG C. to form two liquid phases, separating the caprolactam phase, and distilling caprolactam.  The process may be made continuous, the alkali metal hydroxide solution being re-used.  The caprolactam may be purified by freezing out of aqueous solution.  In the Figure, the inner quadrilateral represents a preferred range of compositions.
Patent GB-1109298-A (GB)
Title: Improvements in cooled continuous-casting chill-moulds
IPC: B22D11/055
Filed: 1965-06-25
Abstract: 1,109,298. Moulds. SCHLOEMANN A.G. 25 June, 1965 [17 July, 1964], No. 26976/65. Heading B3F. In a cooled continuous casting mould having a rectilinear internal cross-section for forming a casting, thermal insulating zones which are spaced away from the internal shaping surface of the mould cavity are provided in the region of the corners 6 of the mould cavity to retard the dissipation of heat at the corners during casting, the zones extending longitudinally parallel to the axis of the mould. The zones are constituted by longitudinal bores 7 situated at the corners of the mould and which convey no cooling fluid. In addition tapering slots 10 may be machined in the bores to increase the thermal insulating effect progressively downwardly in the direction of solidification of the cast. Normal cooling of the mould is provided by the passage of coolant through bores 4 in which restrictor members 5 are located to limit the quantity of coolant flowing. In an alternative embodiment in which the mould construction is in the form of an inner product shaping wall and an outer wall forming a cooling jacket, thermal insulating coatings may be applied to those parts of the internal periphery of the shaping wall within the cooling jacket in the region of the corners.
Patent GB-270090-A (GB)
Abstract: 270,090. Vincent, J. H. May 7, 1926. Retaining devices below closure.-An expanding lid for bottles, jars &c. shown in Fig. 7 in underside plan, comprises a disc 1 formed with spaced concentric and arcuate flanges 2 which in vertical section are curved or hooked as shown in Fig. 3, to adapt them to be engaged by a spiral spring 8 one end of which is secured to the stem 3 of a thumb-screw rotatably mounted in the disc to adapt it to regulate the spring for different sizes of containers whilst the other end is secured to a pin 6 by which it can be moved radially to and from the centre of the disc, the pin being secured to a flanged member 5 slidably secured to the underside of the disc and means being provided to maintain the pin in its adjusted positions. An arm 7 secured to and rotatable with the stem of the thumbscrew carries a slider 9 formed with a flange which when the arm is turned assists in pressing the spring against the container 14. As shown, the flanged member 5 is mounted in angularly inclined guides and the adjusting pin 6 is retained in its adjusted positions by teeth 11 on the disc, but in a modification a pawl and ratchet device on the thumb-screw replaces the arm 7 and slider 9 and the disc is formed with a slot 23, Fig. 10, having lateral extensions 24 into which the pin can be moved and there locked by a plate 25 slidable in guides 27 on the disc, the plate being formed with a recess 28 to engage the pin 6.
Patent GB-1343444-A (GB)
Title: Machine for driving tunnels drifts raises and the like
IPC: E21D9/11
Filed: 1971-04-19
Abstract: 1343444 Tunnelling machines ATLAS COPCO AB 19 April 1971 [14 April 1970] 27016/71 Heading E1F A tunnelling machine has a cutting unit which is mounted on a main frame to swing about a horizontal axis. The cutting unit has a rotating cutter head which cuts over the whole width of the tunnel upon swinging of the cutting unit by means of two swinging jacks. The cutting unit and the frame are braced between the side walls of the tunnel by means of two jacks which have their extension axes co-linear with the horizontal axis of swinging. A transverse frame, slidable forwards and backwards in the main frame, can also be braced between the side walls by means of two co-linear jacks. One of the swing jacks is mounted in the main frame and the other in the transverse frame, and the swing jacks are also used for advancing the machine in steps.
Patent GB-796610-A (GB)
Title: Improvements in or relating to sealing materials for use as gaskets, packings, and similar sealing devices
IPC: D04H1/64
Filed: 1955-09-22
Abstract: 796,610. Chemically resistant proofed or agglutinated fibrous sheet materials; impregnated bearing surfaces; coated fabrics; felt. DU PONT DE NEMOURS & CO., E. I. Sept. 22, 1955 [Sept. 24, 1954], No. 27123/55. Classes 42 (2) and 140. [Also in Group IX] Chemically-resistant proofed or agglutinated fibrous materials, and impregnated bearing surfaces suitable for use as sealing materials such as gaskets and packings comprise in intimate association a tetrafluoroethylene polymer in fibrous form and a tetrafluoroethylene polymer in non-fibrous, coagulated form. The polymers employed are derived from 85-100 per cent of tetrafluoroethylene and 0-15 per cent of ethylene, trifluorochloroethylene, difluorodichloroethylene, vinyl fluoride, hexafluoropropylene, or vinylidene chloride. The fibrous material may be in the form of continuous filament or staple fibre fabricated into woven fabrics, braids, batts or felts which may be needle-punched and may have received a shrinkage treatment. The braids may be made from a yarn of tetrafluoroethylene polymer filaments or monofils slit from a sheet or film of the polymer. Ribbons or tape of the polymer may be braided. The fibrous material is impregnated with a dispersion of the polymer in an organic liquid or in water, all or part of which may be replaced by a compatible liquid such as ethylene glycol. The dispersion may contain silicon carbide, aluminium oxide, graphite, or zirconium oxide. The vehicle for the dispersion may be removed by evaporation, using heat or reduced pressure, or the dispersion may be broken by freezing followed by warming, by heating to a temperature at which the dispersion is no longer stable, or by addition of electrolytes or coagulating agents such as acetone. The impregnated material is generally heated after setting or breaking the dispersion, to remove water and to decompose or remove dispersing agents. The packing may seal moving parts, e.g. valve stems, pump shafts, and motor shafts. Coated fabrics are made by smearing or doctoring on to one of the above dried, impregnated materials a thin coating of a tetrafluoroethylene polymer paste, prepared by breaking an aqueous dispersion of the polymer. Felt is made from 6-10 denier, 5 inch, drawn, polytetrafluoroethylene filament staple blended with 3 per cent by weight of 3 denier, 2.5 inch viscose rayon staple. The blend is carded and cross-lapped into a web which is passed through a needle loom ten times (Example 1) or twenty times (Example 2) the web being turned over between successive passes. The loom is equipped with the etched needles described in Example 1 of Specification 765,153. Specifications 631,504, 631,570, 686,438 and 689,801, [all in Group IV (a)], also are referred to.