baber/WOPTO huggingface dataset:
Patent GB-1088367-A (GB)
Title: Spring-operated quick-break electric switch
Inventor: OEFNER REINER
IPC: H01H17/00
Filed: 1966-04-20
Abstract: 1,088,367. Thermal switches; actuation of switches; electromagnetic switches. GERATEWERK KARL-MARX STADT VEB. April 20, 1966, No. 17276/66. Heading H2B. [Also in Division F2] A snap-action switch comprises a coil tension spring 1 which initially is axially prestressed and lies flat with the coils lying on one another, the coils suddenly assuming a position approximately perpendicular to theaxis of the spring as the result of the application of a tractive force and returning to the initial position when this force is relaxed. The spring may act as the moving contact or may act on contact blades and may have circular or other cross-section. Two springs may be actuated together. The tractive force may be thermal, electromagnetic or mechanical.
Patent GB-834813-A (GB)
Title: Tube corrugating apparatus and methods
Inventor: SCHINDLER FRANK STEPHEN
IPC: B21D15/10
Filed: 1956-06-05
Abstract: 834,813. Making corrugated tubes and bellows; stamping. FLEXONICS CORPORATION. June 5, 1956, No. 17381/56. Classes 83 (2) and 83 (4). A method of making corrugated tubing is characterized in that zones of a piece of plain tubing are each in turn formed into a corrugation by first radially deforming the zone into a partial corrugation by means of a distensible member which engages the tubing and which is directly acted upon by fluid under pressure, and then axially collapsing the partial corrugation by means of relatively axially movable die means which engage the opposite sides of the partial corrugation. The apparatus comprises a base 10 having a central pedestal 12 and pairs of side supports 14 and 16 carrying brackets 22 and 24 respectively which lie on the same plane as a platform 18 carried by the central pedestal 12, said platform incorporating the elastic forming member 20. The brackets 22 and 24 carry a pair of slidable die plates 28 and 30 which loosely embrace the tube 26 on the opposite side to the platform 18. The die plates are operated by hydraulic pistons 32 and 34 (Fig. 2). An additional co-operative die plate 40 is carried at the end of a sleeve 42, the lower end of which has a pair of flanges 44 and 46. The die assembly 40-46 is shifted by a pair of hydraulic pistons 48 and 50 secured to the flanges 44 and 46 and spring-loaded guide pins 56 and 58 urge the sleeves towards their lowermost positions. Stop screw 62, 64 limit the upward movement of the die-plate 40. The tubing is intermittently vertically fed by an annular member 66 frictionally mounted on a sleeve 68 on the central pedestal 12, said member 66 having a rubber outer gripping ring 70. An hydraulic piston 82 intermittently raises the sleeve 68 through a one-way ball clutch 74 and rack-and-pinion gearing. An adjustable stop pin 86 limits the feed of the gripping member. In operation, fluid pressure is applied to the forming member 20 to project a shallow corrugation 88 (Fig. 5) on the tubing after which the die plate 40 is raised to collapse and deepen the corrugation in co-operation with the die plates 28-30. During the collapsing operation the forming member 20 is either expanded or collapsed, but during the final forming operation by the die plates the member 20 is in its normal collapsed position (Fig. 7). An hydraulic control circuit (Fig. 8) operates valves controlling the pistons actuating the die plates and feed member in predetermined timed sequence by means of a series of operating cams driven from a motor 134. In a modification, the forming member 20 comprises an annular cylindrical rubber band 20a clamped to the platform 18a by rings 138 and 140 (Fig. 9).
Patent GB-470744-A (GB)
Title: Improvements in and relating to air or gas compressor apparatus
IPC: F25B31/00
Filed: 1936-02-24
Abstract: 470,744. Gas compressors. SMITH, E., and CRABTREE, N., (trading as SMITH & CRABTREE). Feb. 24, 1936, No. 17467/37. Divided out of 470,970, [Group XIII]. [Class 8 (i)]. Gas to be compressed flows by a valved inlet passage D<1> to a double annular passage surrounding the cylinder. In the outer passage it rises, and oil collecting in this passage may pass by a valve V to the crank casing. In the inner passage it descends to cylinder inlet ports A<1> opened at the end of the stroke.
Patent GB-1497323-A (GB)
Title: Control torque command circuits included in reaction wheel assemblies
IPC: H02P23/00
Filed: 1975-04-29
Abstract: 1497323 Automatic control SPERRY RAND CORP 29 April 1975 [17 May 1974] 17690/75 Heading G3N In a system in which the attitude of a vehicle (in space) is altered by the reaction to a change in angular velocity of a reaction wheel mounted in the vehicle the actual torque applied to change the angular velocity is made equal to a command value, derived by an attitude control computer, by adjusting the applied torque in response to the difference between the integral of the commanded torque and an actual angular velocity signal. As shown, the system uses analogue signals. Attitude sensors (not shown) are connected to a computer 30 whose output is integrated at 33 for comparison at 34 with a signal from a tachometer 35. The difference is amplified at 31 to control motor 21 driving wheel 14. TB represents disturbance torques whose effects are eliminated by the feedback loop. Details of the integrator and comparator are given, Fig. 4 (not shown) and an equivalent digital control circuit is described, Fig. 5 (not shown).
Patent GB-145573-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/26
Filed: 1920-06-29
Abstract: 145,573. Stromberg Motor Devices Co., (Assignees of Cole, D.). Feb. 11, 1918, [Convention date]. Spray carburettors.-In a carburettor having a fuel passage 28 between a fuel-supply chamber 23 and the spraying orifices 27, a restricted nozzle 29 below the fuel level projects upwards into an airsupply passage 31, 32 controlled bv a screwthreaded valve 33, which is connected by links 40, 42, 43 to the spindle 7 of the throttle valve, and is gradually closed as the throttle is opened. The connexion between the valve 33 and the link 42 is adjustable. The fuel chamber 23 communicates with the float chamber 15 by a port 24. The carburetting-chamber 5 has a valved air inlet 4, an outlet 2 with a butterfly throttle valve 6, and a horizontal Venturi tube 11 with internal fuel spraying orifices 27. A slow-running nozzle 54, Fig. 4, adjacent to the throttle, is supplied from the passage 28 and the annular passage around the orifices 27 by a passage 53, 56 controlled by a needle valve 55. The fuel supply to the nozzle 54 is aerated by air entering the orifices 27. A starting-orifice 63, Fig. 2, beyond the throttle is sumpplied from a fuel-chamber 61 and a port 62 con. trolled by a needle valve 65 normally closed by a spring 64. The air inlet 4 is controlled by a butterfly valve 69, having an aperture 73 admitting a little air at starting and actuated by a Bowden wire, the sheath of which is held by a bracket 72 on the inlet tube 4.
Patent GB-530140-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/92
Filed: 1939-06-17
Abstract: 530,140. Cathode-ray tubes. DODDS, J. M., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 17, 1939, No. 17763. [Class 39 (i)] In oscillographs, the excessive inductance of the leads and deflecting plates with high frequencies, is reduced by arranging the lead-in conductors 3 at right angles to the axis of the tube 1 and in planes parallel with the deflecting plates 2. The leads are taken through the same or separate pinches 4 in the wall of the tube and into the screening tube 6. A screening box, with apertured disc ends and a slot or pair of apertures for the passage of the leads may surround the deflecting plates. A second screening sleeve may also surround the plates externally of the tube, and the short exposed parts 5 of the leads may be enclosed in a screening box.
Patent GB-1272722-A (GB)
Title: Method and apparatus for testing oils and greases
IPC: G01N33/30
Filed: 1970-04-14
Abstract: 1,272,722. Measuring angular displacement. ING. C. OLIVETTI & S.p.A. 14 April, 1970 [15 April, 1969], No. 17805/70. Heading G4H. [Also in Division G1] A method of testing the lubricity of an oil or grease comprises applying the oil or grease to a bearing 4 which supports a flywheel 8, stabilizing the temperature of the bearing, driving the flywheel to a predetermined speed within a predetermined time and then allowing the flywheel to coast, a stroboscopic pattern on the flywheel then being illuminated with a stroboscopic lamp and the number of revolutions of the flywheel between two stroboscopic appearances of the flywheel being stationary being counted by a photo-electric counting system. This number is a measure of the lubricity of the lubricant. In use the flywheel is accelerated to 500 r.p.m. in 5 seconds. As described bearing 4 carries flywheel 8 on shaft 1 of a clutch mechanism which swings the flywheel into contact with a rubber disc 15 driven by electric motor 11 when the flywheel is to be accelerated. Teeth 9 extending from the edge of the flywheel co-operate with lamp and photo-cell 10a, 10 to determine the speed of rotation of the flywheel. Slot 11 subtending 60 degrees at the axis of rotation, co-operates with lamp and photo-cell 12a, 12 to count the revolutions of the flywheel. The temperature is maintained constant by insulating walls 19 in refrigerating chamber 18.
Patent GB-946337-A (GB)
Title: Improvements in or relating to composite metallic bodies
Inventor: JENKINS IVOR
IPC: H01B1/02
Filed: 1961-05-16
Abstract: A sintered copper body containing a uniformly dispersed refractory oxide phase in such an amount that the sintered copper has a high electrical conductivity which is at least 90% of the international standard conductivity for pure copper, is joined to a substrate such as steel or nickel or cobalt based alloys which have a higher mechanical strength than pure copper to form a composite body such as a commutator segment.  The refractory oxides may be Al2O3, MgO, BeO, or ThO2, and the sintered copper body incorporating the refractory oxide may be prepared by any of the methods disclosed in Specifications 893,425, 917,005, 919,051 and 932,460.  The substrate is formed by powder metallurgy methods or by casting and the two members are united by brazing or hot rolling. In an example copper powder is mixed with an aqueous solution of magnesium nitrate, the water is evaporated and the mixture is heated in air to form a mixture of copper oxide and magnesium oxide which is crushed and heated to 300 DEG C. in hydrogen.  The resulting copper-magnesium oxide mixture is compacted and sintered at 1050 DEG C. in hydrogen to give a compact containing 0.86% magnesium oxide which is hot rolled at 800 DEG C. After brazing the composite may be heat treated at 850 DEG C., quenched in oil or water and tempered at 600 DEG C.
Patent GB-686542-A (GB)
Title: Improvements in the production of zinc
IPC: C22B19/18
Filed: 1949-07-06
Abstract: 686,542. Distilling zinc. ROBSON, S., DERHAM, L. J., and NATIONAL SMELTING CO., Ltd. July 6, 1949, No. 17837/49. Class 82(i) In the method of recovering zinc from a body of lead used in a condensing zone as a condensing medium for zinc vapour obtained in a zinc smelting operation, the condensation is continued until the zinc content of the molten lead builds up to a point corresponding to the saturation point of the lead for zinc at a temperature above the freezing point of the zinc but below the temperature of the lead in the condensing zone, the molten lead-zinc solution is accumulated in a substantially quiescent body which is cooled to a temperature above the freezing point of zinc but at which zinc separates and rises to the top to form a supernatent layer of molten zinc and an underlying layer of molten lead, the supernatant layer being separated at least partially from the molten lead which is returned to the condensing zone for re-use. As shown in Fig. 11 gases from a zinc blast furnace enter a condensing chamber 12 through ducts 15 and 16. In chamber 12 a rotary paddle 22 showers molten lead-zinc from sump 24, the shower extracting zinc from the furnace gases which are exhausted through duct 26a. Part of the showered lead-zinc falls in trough 32 and flows continuously into external trough 35 under a hanging wall which constitutes an air seal through a hole 36, and thence to a zinc separator. Molten lead-zinc flows from trough 35 to trough 46, Fig. 7, and enters the separator through ducts 48. The separator comprises a refractory lined cylindrical container 39 provided with a cooling jacket 60 at its upper part and heating jacket 63 at its lower part. A substantially quiescent molten body is built up in the separator and is cooled to a temperature below 500 ‹C, molten zinc separating and forming an upper layer which is removed via duct 50 to a zinc container. The underlying molten lead is removed from the lower part of the separator by a vertical duct 56, Fig. 8, and duct 59, for return to the condensing zone, continuous circulation of lead being maintained by gravity. In a modification the condenser comprises two condensing chambers in series each having means for showering molten lead. Molten lead enters the condensing zone remote from the source of zinc gases, is showered therein and passes through an opening in the lower part of the zone to the condensing zone nearest the source of zinc gases which thus flow in countercurrent to the molten lead is removed from the lower zinc solution in this zone is collected in an elevated trough from which it passes to the zinc separator. Specifications 572,961, 686,585 and 686,589 are referred to.
Patent GB-704899-A (GB)
Title: Improvements in or relating to corrugated bands for power transmission mechanism
IPC: F16G1/26
Filed: 1951-07-27
Abstract: 704,899. Springs. BENDALL, W. H. July 27, 1951, No. 17847/51. Class 108(3) [Also in Group XXIV] A corrugated "gearbelt" 10, which may be used as a frictionaldriving belt for V- pulleys, as a positive driving band for toothed wheels, or as a flexible shaftcoupling unit, comprises a strip of uniformly corrugated material which is coiled upon itself so that the corrugations are loosely superimposed and contact each other only along the flats. Dry graphite lubricant or a viscous grease may be applied to the strip during fabrication. When used as a driving band for toothed wheels, Fig. 3, the layers are held together by wire clips 12, Fig. 5 (not shown), the loops of which serve also to retain the gearbelt on the driving wheel. When used with a grooved pulley, Fig. 8, the edges of the gearbelt are tapered and the layers secured by pins 22. Where the gearbelt also engages a toothed wheel a circumferential slot is provided therein to clear the pins. The pulley shown in Fig. 8 comprises rims 40, 40A, keyed to a hub 41 and a conical disc spring 45 held by a threaded collar 43 and locknut so that the width of the groove may be adjusted to grip the gearbelt. When used as a shaft coupling, a freely wound gearbelt 10, Figs. 9 and 10; resiliently interconnects concentric sets of teeth 51, 53 formed on shaft hubs 50, 52 and is retained by split rings. A diaphragm 58 retains lubricant.
Patent GB-541507-A (GB)
Title: Improvements relating to jacketted containers
IPC: F24H9/02
Filed: 1940-12-19
Abstract: 541,507. Making jacketed containers. ENAMELLED METAL PRODUCTS CORPORATION (1933), Ltd., and BURNS, W. L. Dec. 19, 1940, No. 17871. Addition to 505,961. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In a jacketed container used for food manufacture &c. having an annular stiffener welded both to the container and the jacket apron. as described in the parent Specification, the stiffener 2 is directly welded to the container 3 but is clear of the apron 1 and is connected thereto by a number of interponents 4 welded both to the apron and to the stiffener. The interponents may consist of inclined rods welded into holes in the apron 1, the holes being filled up with weld metal.
Patent GB-672164-A (GB)
Title: A process for the manufacture of pentaenes
Filed: 1950-07-18
Abstract: Pentaenes are obtained by reacting a compound of the formula <FORM:0672164/IV (b)/1> wherein R is an acyl or an alkyl group and R1 is an acyl group or hydrogen, dissolved in a halogenated hydrocarbon having a high dipole moment, e.g. chloroform, with an aqueous hydrogen halide, e.g. aqueous hydrobromic acid, without heating, and splitting off hydrogen halide from the halogen compound obtained in the presence of water or a basic substance.  Detailed examples are given.
Patent GB-658920-A (GB)
Title: Improvements in or relating to homogenizing apparatus
IPC: B01F5/06
Filed: 1949-07-07
Abstract: <PICT:0658920/III/1> Apparatus for homogenizing emulsions and other liquid or semi-solid materials comprises two or more spring-loaded homogenizing valves through which the material from a common high-pressure duct is passed simultaneously.  In the multi-stage type of homogenizer, each stage may comprise two or more valves in parallel.  Two or more valves in parallel may also be connected with further valves in series.  As shown, liquid from a common high-pressure duct 1 is passed through branches 2, 3 to valves 4, 5 provided with spring-loaded plates 8, the liquid being forced between the sets of interfitting ribs 7 into annular chambers 10 and discharged at 11.
Patent GB-219979-A (GB)
Title: Improvements in or relating to contact-plugs
IPC: H01R13/05
Filed: 1924-07-28
Abstract: 219,979. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Aug. 2, 1923, [Convention date]. Addition to 217,220. Vacuum tubes.-In valve pins described in the parent Specification, the leading-in wires 39 are secured in contact with the pins 32 by a metal member preferably a ring 36, surrounding the pin and having a hole 37 in which the wire, after passing through a corresponding hole 38 in the insulating base, is secured by solder. Preferably the hole in the ring breaks into its central aperture so that the securing solder also establishes direct contact with the pin. The metal member may be embedded in the insulating material of the base which may be the cap of a " receiving tube " for wireless telegraphy &c. The ring may have a small flange 45 to improve its attachment to the insulating material and the hole 37 may be inclined so as to break into the ring at the lower end only. The pins described in the Specification as open to inspection under Sect. 91 (3) (a) have roughened ends 35, Fig. 1 (Cancelled), embedded in the insulating material. This subject-matter does not appear in the Specification as accepted.
Patent GB-221051-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/08
Filed: 1923-07-12
Abstract: 221,051. Dahlberg, A. O. July 12, 1923. Reservoir pens.-A fountain pen is provided with, a pump disposed within the barrel for self-filling purposes and arranged so that the ink resists further action of the pump when the pen is full. As shown, the self-filling device comprises a piston 7 provided with a rod 8. the lower end of which is formed as a valve 9 adapted to close am opening 12 in a collar 11 fixed in the piston. The rod is slidable through the collar 11 between limits formed by the valve 9 and lugs 15 on the rod. The rod passes out through the rear end of the .barrel and is acted on by a spring 13 normally holding the valve 9 closed and the piston retracted. The forward end of the piston is recessed to contain a float 16 held in place by a wire 19, and formed with a passage 21 and a projection for closing an opening 18 in the piston. For filling, the rod 8 is pushed in to open the valve and move the piston forward by means of the lugs 15, the air in the barrel escaping through the passages 21, 18, 12. On releasing the rod, the spring 13 acts to close the valve and retract the piston to draw in ink. When the. barrel is full, the float 16 is lifted to close the opening 18 to prevent the escape of ink through the piston should pumping be continued too long. In a modification, the rod is fixed to the piston, and openings, which converge into the opening 18, are adapted to be opened or closed by a disc slidable on the rod.
Patent GB-1010604-A (GB)
Title: Improvements in and relating to apparatus and processes for chromatography
IPC: B01D53/02
Filed: 1962-05-10
Abstract: 1,010,604. Chromatography. C. DESAGA G.m.b.H. NACHF ERICH FECHT. May 10, 1962 [May 10, 1961], No. 18111/62. Heading B1X.  Chromatographic separation of a mixture of substances is carried out by applying the mixture along a starting line about 15 mm. from an edge of a thin layer of adsorption agent supported on a plate 4, a large part of which is covered by a cover 5. A container 2 for eluting solvent is clamped at the edge of the plate 4 ; and a piece of filter paper 3 conveys the solvent by capillary action to the starting edge of the layer of adsorption agent. The solvent, after passing through that part of the layer of adsorption agent under the cover 5, evaporates or drips off from the exposed portion of the layer. A heating tube may be disposed below the outlet end of the plate; and cooling-means are then provided for the remainder of the plate. Examples are given relating to the separation of amino acids using silica gel as adsorption agent, and a variety of solvent mixtures.
Patent GB-786634-A (GB)
Title: Improvements in or relating to tills and other money receptacles
IPC: G07D9/00
Filed: 1954-06-21
Abstract: 786,634. Appliances for handling coins. SEEBOHM, D. Sept. 21, 1955 [June 21, 1954]. No. 18194/54. Class 116 Each of several compartments in a money bowl has an inwardly concave wall 16, Fig. 2, formed with a rim 17 so that after a coin is slid upwardly over the wall by the tips of the fingers the coin falls from the wall on to the fingers. In the construction of Figs. 1 and 2 a number of channel shaped bowls 15 are placed side-by-side and separated by a shallow wall 24 from a trough 23 for holding notes. In the construction of Fig. 4 two bowls 36 side-by-side form a unit which, together with a further unit comprising three end-toend bowls 30 and a set of compartments 40 for notes fit within a teller's draw 28. The section of the bowls 36, 30 is illustrated in Fig. 5. The devices illustrated may be moulded from plastic or formed by flat plastic walls between which are bonded curved sheets forming the curved walls. As shown in Fig. 1 a set of plastic bowls may be held in a drawer 10 by screws 14. In a construction similar to that of Fig. 1 the walls 21 are replaced by a removable plastic strip fitting in slots in the rear wall 26 of the trough 23.
Patent GB-1049103-A (GB)
Title: Production of 5-isoxazolones and their derivatives
Inventor: GREEN MAURICE BERKELEY
IPC: C07D261/14
Filed: 1964-05-01
Abstract: 4-Aryl-hydrazono- and the isomeric 4-aryl-azo-5-isoxazolones are produced by reacting a beta-keto ester or a diketene with hydroxylamine (or a derivative) at 30-70 DEG  C. to produce a 5-isoxazolone which is then reacted with an aryl diazonium compound. Examples of suitable diazonium compounds are benzene, naphthalene and o-chlorobenzene diazonium compounds.ALSO:5-Isoxazolones are produced by reaction between a b -keto ester or a diketene and hydroxylamine or a hydroxylamine derivative, at a temperature between 30 DEG  and 70 DEG  C.  The b -keto ester is suitably ethyl acetoacetate and the diketen is preferably diketene itself. Specified hydroxylamine derivatives are hydroxylamine hydrochloride, sulphate, mono- or disulphonic acids or salts of these acids.  The 5-isoxazolones produced may be further reacted with a diazo compound to produce a 4 - hydrazono - 5 - isoxazolone (or the isomeric azo compound). Specified diazo compounds are benzene diazonium, o-chlorobenzene diazonium and naphthalene diazonium compounds.