baber/WOPTO huggingface dataset:
Patent GB-100637-A (GB)
Title: Process of and Apparatus for the Separation of Metalliferous Particles by Oil Flotation.
IPC: B03D1/24
Filed: 1916-05-09
Abstract: 100,637. Metallurgical Co. of America, (Assignees of Haley, D. F.). June 4, 1915, [Convention date]. Surface-tension separating processes and apparatus.-In a flotation process and apparatus, oiled pulp from a feed-box 3 passes to a centrifugal pump 5, which may effect partial aeration, and is discharged through a nozzle 9 on to the surface of a confined body of liquid in a vessel 10 mounted in a flotation vessel 11. The froth is removed at an adjustable outlet 12 by slowly rotating blades 17, and tailings are discharged into a launder 21 at such a rate as to permit some liquid and intermediate matter to overflow at an adjustable outlet 26 below the level of the froth outlet, such material being fed to the next unit in the plant, and so on. The froths are collected in a launder 15 and may be re-treated in a similar plant. The pulp may be acidified and heated.
Patent GB-836225-A (GB)
Title: Improvements in or relating to subscriber's line circuits
Inventor: DENBY JAMES FREDERICK
IPC: H04Q3/00
Filed: 1957-02-28
Abstract: 836,225. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 16, 1958 [Feb. 28, 1957], No. 6660/57. Class 40 (4). In a system in which battery is permanently connected by resistors R1, R2 over the subscriber's loop (e.g. for testing for the calling condition of the subscriber as described in Specification 766,563) potentials which are equal but opposite with respect to earth are applied to opposite legs. This enables the insulation resistance RA, RB of each leg to be tested by a low resistance meter M connected between that leg and battery of the same voltage and dolarity as that permanently connected to the leg, without the latter effecting the reading.
Patent GB-770032-A (GB)
Title: Improvements in or relating to inflating valve
IPC: B60C29/02
Filed: 1954-03-08
Abstract: 770,032. Tyre valves. GOODRICH CO., B. F. March 8, 1954 [March 26, 1953], No. 6668/54. Class 135. An inflating valve for use with tubeless tyres comprises a rubber &c. body with a rigid insert 14 bonded therein to receive the usual check valve 16, and a flanged base with an annular groove 18 to fit within an aperture 26 in the wheel rim R. A series of cavities 23, or a single annular cavity, extend from the inner face of the base and accommodate an inward bulging of the body due to the aperture 26 being of lesser diameter than the bottom of the groove 18. Air pressure in an inflated tyre acting in the cavity or cavities enhances the seal between the rim and the body. The portion 21 of the body above the groove 18 is tapered to facilitate insertion of the body into the rim aperture. In a modification, the part of the flange that engages the inner face of the rim has annular ridges, and the inner face of the body has bonded to it a metal washer which, together with a rubber cover bonded thereto, is apertured corresponding to the cavity or cavities and to the central bore through the body.
Patent GB-366756-A (GB)
Title: Improvements in or relating to charger-loading rifles and chargers therefor
IPC: F41A3/66
Filed: 1931-03-05
Abstract: 366,756. RiHes ; chargers. FROMMER, R. VON, 158, Soroksari Ut, Budapest. March 5, 1931, No. 6859. [Classes 9 (i) and 119.] A charger 1 is made with a beading 2 along one side of it adapted to engage a corresponding notch 7 in the breech casing of the rifle to hold the charger firmly while the cartridges are pushed into the magazine by a press-block 5 which bears only on the rim of the last cartridge. The charger has the usual spring lips 4.
Patent GB-414001-A (GB)
Title: Improvements in ring spinning frames
IPC: D01H11/00
Filed: 1934-03-05
Abstract: 414,001. Removing dust &c. on generation. HOWORTH, F. C., Roscoe House, Anderton, Chorley, Lancashire. March 5, 1934, No. 6901. [Class 8 (ii).] In a ring spinning frame, a longitudinal air chamber or duct B is fitted between or behind the rollers a<1> or roller beams A and provided with nozzles or apertures directing air jets on the rollers to remove dust, fly, fluff &c. Another set of jets b<1> is directed downwards below the beams and rollers. The conduits B from the frames are connected by tubes with a fan &c. and may be grouped in multiples of five or more for air circulation. An air filter or conditioner may be provided ; valves may be provided to take air either from the room or from outside.
Patent GB-799143-A (GB)
Title: Improvements in or relating to pressure exchanger apparatus
IPC: F04F13/00
Filed: 1955-03-09
Abstract: 799,143. Refrigerating. SPALDING, D. B. Feb. 27, 1956 [March 9, 1955], No. 6910/55. Class 29 [Also in Group XXVIII] In a pressure exchanger, medium pressure fluid entering a cell ring 1 is compressed and extracted at a higher pressure by a duct 3; fluid remaining in the cell is expanded and extracted at a pressure lower than the medium pressure by a duct 4. The temperature of the fluid in the ducts 3, 4 will be respectively hotter and colder than the medium pressure fluid entering the duct 2. The cooling effect of the low pressure outlet may be used to cool an aircraft. Referring to Fig. 7, an open ended cell ring 20 is fed by a duct 21 with ram air. The end plate at the opposite end has alternate high and low pressure ducts 22, 23 which are connected to ducts 22, 23 in the end plate of a further cell ring 25 the opposite end of which is open to atmosphere at 26. The fluid flowing between the ducts 23 flows through cooling coils 24.
Patent GB-329264-A (GB)
Title: Improvements in railway point and signal apparatus
IPC: B61L19/14
Filed: 1929-03-01
Abstract: 329,264. British Power Railway Signal Co., Ltd., Glenn, S. L., and Pierce, E. E. March 1, 1929. Divided on 328,724. Interlocking. - In an electromechanical interlocking installation as described in Specification 328,724 a bifurcated lock member 1 which co-operates with slots 6 in an operating bar 7 is forced into locking positions by ramps 15 which bear on a roller 14 fixed to the lock member 1. On de-energizing a magnet coil 22 gravity loads cause the lock to drop. Counterweights 4 are added to secure a gravity load on the armature if the operating bar 7 acts vertically. A cover 9 has an extension 17 which forms a magnetic yoke for the magnet 22. A further extension 43 forms a bracket for a " lock-in " proving switch of which the fixed contacts 41 are mounted upon an insulating block 42 and the movable contacts 44 are carried directly by the lock member 1. A non-magnetic cap 19 covers the enlarged end of the magnet core. The operating bar 7 works in a machined slot in the main casting 10 and stops 26 are provided to limit the travel of the bar. A sheet metal cover 28 is provided.
Patent GB-230856-A (GB)
Title: Improvements in electric contact devices
IPC: H01H1/22
Filed: 1925-03-16
Abstract: 230,856. Forges et Ateliers de Constructions Electriques de Jeumont. March 17, 1924, [Convention date]. Commutators and collecting-rings; brushholders.-A contact device effecting connection between two conductors or two series of conductors, applicable to commutators and slip-rings for dynamo-electric machines &c., comprises a. rigid block 1 bearing upon the two conductors 2, 3 under the action of a spring 5 between the block and a suitable support 4, which may for example be one of the conductors. The block has an external regular curved surface at each end at which the pressure is concentrated upon a line which is a generator of the surface and no flexible connection is provided between the contact block and either of the conductors. According to the Specification as open to inspection under Sect. 91 (3) (a), the invention, which was not limited in regard to the form of the ends of the block, was applicable to dynamoelectric machines. Fig. 7 (Cancelled) shows an application to a commutator and the modification according to Fig. 8 (Cancelled) was stated to be adapted for slip-ring collectors or commutators. In this Figure a solid of revolution 1 is journaled on an axis 12 in a shank 13 which slides vertically under control of a spring 5 in a stationary member 4. The surfaces of the member 1 roll upon the conductors 2, 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-780253-A (GB)
Title: Improvements in hydraulic apparatus
Inventor: SANDEMAN CARGILL SPEIRS
IPC: G05D11/00
Filed: 1954-03-11
Abstract: 780,253. Mixing fluids in flow. MAVOR & COULSON. Ltd. June 27, 1955 [March 11, 1954], No. 7051/54. Class 86 Means for supplying anti-rust liquid to a hydraulic system comprises a conduit in the system having a constriction 13, the conduit upstream of the constriction communicating with one end of a cylinder 17 having a piston 31, the other end of the cylinder containing anti-rust liquid and communicating with the conduit downstream of the construction. Flow of antirust liquid into the system under the influence of the higher pressure upstream of the constriction is controlled by a needle valve 26. The piston 31 may be replaced by a diaphragm, and the antirust liquid may be replaced by a lubricant.
Patent GB-235643-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22B7/04
Filed: 1924-03-19
Abstract: 235,643. Alley, S. E. March 19, 1924. Tubes, water; partitions and baffles in water space. - In a steam boiler having a narrow vertical water space provided with horizontal, close-ended tubes fitted with internal diaphragms dividing the tubes into two compartments lengthwise of the tubes and projecting into the water-space the water in the water-space is left free to circulate naturally with an upward current adjacent to the side of the water-space exposed to the combustion gases and a downward current adjacent to the other side. The open ends of the tubes and the prolongations of the diaphragms are so disposed in the path of the natural currents in the water-space that water is directed into the lower compartments of the tubes and drawn out of the upper compartments by the currents. The close-ended tubes 14, Fig. 1, are provided with diaphragms 17 which project into the water-space 12 of the boiler so that the descending current of water 19 flows along the outer wall of the water-space and the ascending currents 20 pass through the tubes in series. The upper tube 14, Fig. 3, is provided with an extension 29 which receives a cap 30 perforated with holes 31 on its upper surface and provided with a tubular extension 32 having a bent end with an upwardly directed aperture 33 which permits the supply of any particular tube to be taken from any convenient situation in the water-space. In this arrangement the prolongations of certain of the tubes are omitted so as not to foul the tubular extension 32. The converse arrangement, may be adopted so that the water may be delivered from a tube to a situation where it will not interfere with the circulation of other tubes. The cap may be of T-shape having upwardly and downwardly directed orifices, or the lower half of the tube may project into the water-space in the form of a cup, the projecting end of the diaphragm being upwardly bent above it. The diaphragms may be welded or riveted to the tubes or indentations 27, Fig. 2, may be formed in the sides of the diaphragm which engage with similar projections 28 in the tubes. The diaphragms are perforated or may be clear in parts of the sides of the tubes.
Patent GB-241446-A (GB)
Title: Improvements in and connected with connecting rod bearings
IPC: F16C19/46
Filed: 1925-03-16
Abstract: 241,446. Hoffmann, G. March 16, 1925. Roller bearings.-The bearing rollers g for the big and small ends of connecting-rods are of small diameter, of the order of size of piano wire, and they are arranged so as to touch one another in an annular groove b in the bore. Normally the rods act as a sliding sleeve rotating as a whole about the crank or gudgeon pin, the friction between the rods preventing all of them, except a few in the neighbourhood of greatest pressure, from rotating about their own axes. Lubricant is led into the groove b by splash lubricating through a pipe o, or by force-feed through a passage k.
Patent GB-365856-A (GB)
Title: Process for rolling out zinc plates in sheet or strip form and the products obtained thereby
IPC: B21B3/00
Filed: 1931-03-06
Abstract: 365,856. Rolling zinc sheets. JORDAN, F., 16, Bayern-Allee, Charlottenburg, Berlin. March 6, 1931, No. 7102. Addition to 304,991, [Class 83 (iv), Metals, Working]. [Class 83 (iv).] Working at specified temperatures. - An aluminium sheet at 400‹ C. is covered on each side with a shorter zinc sheet at 200-250‹ C. and the whole rolled together to form a composite sheet which can be used e.g. for zinc electrodes of batteries. When fed to the rolls the sheets are held together by side guides and a top spring-pressed roller.
Patent GB-286927-A (GB)
Title: Improvements in or relating to centrifugal apparatus for spinning artificial silk
IPC: B04B9/12
Filed: 1926-12-15
Abstract: 286,927. Railing, A. H., and Eley, H. J. Dec. 15, 1926. Spindle apparatus. - Centrifugal apparatus for spinning artificial silk comprises a spinning box 8 having a low centre of gravity and coupled by a slot and pin 9, 10 to the spherical head 7 of a spindle 6, a bearing 11 flexibly supported by blade springs 13, and a cylindrical or equivalent supporting bracket 12 through which the spindle and its motor 2 can be lifted when the cover 14 is removed. The lower end of the spindle is supported on a ball thrust bearing 3 and in a ring bearing 4.
Patent GB-926183-A (GB)
Title: Improvements in and relating to index signal generating means and systems
IPC: H04N9/24
Filed: 1959-05-22
Abstract: 926,183. Colour television. D. E. SUNSTEIN. May 22, 1959, No. 7140/62. Divided out of 926,182. Drawings to Specification. Class 40 (3). The description is identical with that appearing in Specification 926,182 but the claims relate to the provision of a signal limiting device to prevent the cutting-off of the cathode-ray beam and the consequent interruption of the generation of indexing signals.
Patent GB-673420-A (GB)
Title: Improvements in or relating to the construction of small typewriters
IPC: B41J3/36
Filed: 1950-03-22
Abstract: 673,420. Typewriters &c. KUSTER, W. March 22, 1950 [April 26, 1949], No. 7175/50. Class 100 (iv). A small typewriter of low construction has key-levers 6 which are pivoted at one end 5 to the bottom portion of the typewriter frame 4 each key-lever 6 being connected between its ends to an intermediate lever 12 also pivoted at 14 to the bottom portion of the frame, the intermediate lever 12 being connected by a draw bar 13 to a type-lever 1 and the key-lever pivot 5 being arranged nearer to the keyboard than is the type-lever pivot 2. The plane 7 of the top of the keys 8 is inclined as shown in their inoperative position and upon depression pass through the horizontal to an equal and oppositely inclined plane 7a and transmit movement through driving pins 9 coacting with slots 10 in one arm of the intermediate levers 12. The position of the pins 9 are nearer the pivot 14 e.g. pin 9<SP>1</SP> according to the length of the keylevers to equalise for the smaller angular movements of the larger keys. The key-levers are guided by a comb 15 arranged in front of the uppermost row of keys 8 which have a forwardly projecting section 16 for engagement with the comb.
Patent GB-1134813-A (GB)
Title: Pressure control valve
IPC: F16K31/165
Filed: 1966-02-18
Abstract: 1,134,813. Valves. ROCKWELL MFG. CO. 18 Feb., 1966 [16 March, 1965], No. 7182/66. Heading F2V. A valve comprises a fluid-pressure responsive member 30, a stem 26 connected to and movable with the member, a valve element 57 on and movable with the stem and co-operable with a valve seat 62, and a resilient sealing gasket 71 slidably mounted on the stem so as to be clamped between the element and the seat when the valve is closed. The element 57 is connected to the stem by a three-legged spider 66 and co-operates with an "O"-ring 69 while the gasket 71 may be of synthetic rubber and is clamped between rigid washers 76, 77 on a metallic or hard plastic bushing 74 freely slidable on the stem. A threaded cap 15 at the bottom of the valve body has legs 20 to receive a threaded bush 22 for guiding the stem. The stem is actuated by a spring-loaded diaphragm 30 exposed to inlet pressure through a passageway 50 in a stand-by piston 33, the passageway being closed by a ball 51 upon a sudden surge of pressure or rupture of the diaphragm.
Patent GB-256150-A (GB)
Title: Improvements in the construction of concrete piles
IPC: E02D5/54
Filed: 1926-03-16
Abstract: 256,150. Wolfsholz, A. March 16, 1926. Piles.-Concrete piles are made by forming a bore-hole having at intervals lateral extensions made by means of an earth-removing device, and filling in concrete under pressure. The extensions may be made by means of jets of fluid. Reinforcements may be provided in the extensions connected to the main reinforcements of the pile. The bore-hole is made by driving a tube 1, Fig. 1, and introducing a cutting-device comprising cutters 2 and levers 3. The tube 1 is raised slightly, and the cutters 2 are forced apart by the levers 3 while the whole device is rotated, producing an enlargement of the hole. The cutters being withdrawn and the loose soil removed, the tube 1 is driven deeper and a second enlarge. ment made, followed if desired by further enlargements. A single bladed cutting-device may be used, or a device consisting of a cone 8, Fig. 3, formed with grooves on its surface in which are mounted a number of chisels 9. A ram 10' slides on the rod supporting the cone 8 and drives the chisels downwardly and outwardly, so forming the enlargement. In forming the enlargements by jetting, a pipe provided with lateral openings is lowered and supplied with water under pressure. When complete, the bore-hole is filled with concrete under pressure. Reinforcing members may be introduced into the central hole, but preferably articulated members 15, 16, Fig. 6, adapted to enter the enlargements are used. These members are introduced into the tube 1, and pressure put upon the rods 15. When the tube is withdrawn, the rods 16 are forced outwardly into the enlargements. A central clamp 19 is preferably provided, and. the joints 17, 23 are such as to allow limited movement only. Piles of varying diameter such as shown in Fig. 7 may be made by driving one tube 24 and a second tube 25 of lesser diameter driven to a greater depth, both bore holes being formed with enlargements 26, 27. Two systems of reinforcing members are used.
Patent GB-722316-A (GB)
Title: A liquid pressure relief valve device for use with liquid fuel pumping plant
Inventor: MARSHALL GEORGE EWART EDWARD
IPC: F16K17/10
Filed: 1951-03-28
Abstract: 722,316. Fluid-pressure servomotor-control systems ; valves. STOTHERT & PITT, Ltd. Jan. 18, 1952 [March 28, 1951], No. 7238/51. Class 135. In a liquid pressure relief valve for a pumping system in which a pilot piston actuates a pump by-pass valve and is controlled by a pilot piston valve movable in response to pressure variation in the system to connect the pilot piston to one or the other of the sides of the pump, both pilot and piston valve are freely movable in their cylinders and have channels leading to the pump suction for draining liquid leaking around the pistons. The outflow from a pump is passed through fittings to a distant point where a rise in the pressure which is to be kept instant is led to a connection 33<SP>1</SP> and raises a plunger 46 abutting an adjustably spring- loaded, suction-pressure balanced piston valve 40, so that a land 48 passes liquid fuel from a pump pressure chamber P through ports 21, 26, pipe 27, passage 70<SP>1</SP> in a relief valve 70, pipe 30 and check valve 9 to a cylinder 6<SP>1</SP> where it raises a piston 1 to open a valve 3 by-passing the pump pressure chamber to the pump suction chamber S. When the pressure returns to normal the piston valve moves down to pass the liquid in the cylinder 6<SP>1</SP> via the leaky check valve 9, through ports 26, 22, to the suction chamber so that the valve 1 closes. On a sudden rise in pump pressure due to, e.g., a valve in the fittings being closed, a relief valve 74 rises to pass liquid via passage 81, 19, to the suction chamber. Further upward movement of the relief valve plunger 70 closes the passage 70<SP>1</SP> and allows pump-pressure via groove 77 and pipe 30 to raise the piston and open the valve 1. The restriction 9<SP>11</SP> makes the ball 9 act as a dashpot.
Patent GB-1085534-A (GB)
Title: Rigid frame for rectangular-shaped opening
IPC: F24F13/08
Filed: 1965-02-19
Abstract: 1,085,534. Ventilators. E. SAVARY, and H. BERSIER. Feb. 19, 1965 [Feb. 21, 1964], No. 7260/65. Heading. F4V. A ventilator frame for a rectangular opening comprises sides formed of sheet metal whose longitudinal edges are bent inwardly at 38 and 38<SP>1</SP> so that any one side 32 can receive in the slides so formed an end 35 of an adjacent side 31, the end of the side 32 being bent over the outside of the frame to form a rigid joint. As shown in Fig. 3 the sheet metal is bent to form a rim 37 adjacent the edge 38, and extensions 41 are provided at each joint, one of the extensions fitting inside the rim of an adjoining side. In a modification, Fig. 4 (not shown), the rim isomitted and the fold 38 is made. directly from the frame side. The frame may contain parallel louvres (104),. Fig. 6 (not shown) which have bent ends inserted in the slides formed on the frame sides. The vanes may alternatively be inserted in a member 118 which is fitted in the frame slides as shown in Fig. 8 and rubber washers may be provided to ensure frictional maintenance of a desired position. The vanes may be connected so as to be simultaneously rotatable.
Patent GB-445810-A (GB)
Title: Improvements in and relating to free-piston compressors
IPC: F02B71/00
Filed: 1935-03-08
Abstract: 445,810. Free-piston air-compressors. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Forschungsanstalt Prof. Junkers; Rosslau, Anhalt, Germany) March 8, 1935, No. 7322. [Class 8 (i)] A free-piston engine compressor is provided with adjustment members automatically modifying the initial or the final or both pressures in one or more of the compressor chambers or supplementary chambers and with means modifying the supply of fuel whereby the stroke of the free piston remains approximately constant under all conditions and wherein the action of the adjusting members is dependent upon the amount of compressed air or gas delivered or used. The freepiston compressor 2 is provided with a fuel supply pump 20, the stroke of which is adjustable by a rack-and-pinion gear 30, 31, the rack being operated by piston 32 against a spring 33 under the action of the pressure in the storage chamber 13. The pressure in this chamber is also used to control the delivery pressures of the compressor by means of a valve 42 under spring control 40, the pressure of which is adjusted by a wedge 45 movable by the piston 49 in a chamber 46 coupled also to the container 13. In a modification, the delivery pressure of the scavenging pump is controlled by a slide throttle valve operated by a piston influenced by pressure in the container 13. In a further modification, a buffer cylinder 67 is coupled at its inner end with the container 13 by a pipe 69 having a constricted bore 68. In another modification the suction pressure of the main compressor is controlled by a sliding valve under the influence of the container 13. The fuel pump in this case has its output modified by a piston rack mechanism under the influence of the delivery pressure in the main compressor modified by a sliding valve coupled by a link to the rack-and-pinion gearing which unifies the motion of the two compressor pistons.