baber/WOPTO huggingface dataset:
Patent GB-185853-A (GB)
Title: Improvements in and connected with the priming of pumps, particularly centrifugal and rotary pumps
IPC: F04D9/00
Filed: 1921-06-14
Abstract: 185,853. Gwynnes Engineering Co., Ltd., Humphreys, H., and Pressman, J. J. June 14, 1921. Starting, facilitating.-In order to prime pumps, a priming chamber f is provided and is connected with the suction by a pipe g and a by-pass pipe h is fitted between the upper part of the chamber f and the delivery pipe l, its end h<3> being, formed or fitted so that the liquid delivered from the pump a acts inductively to draw air from the chamber f. The chamber f being full of water up to the level of the pipe g, when the pump is started, water is drawn from the chamber f and reduced pressure in the chamber f causes water to rise in the pipe g. Any air in the pipe is extracted from the chamber f by way of the pipe h. After the pump is stopped, water may leak away by the pipe g. but the chamber f remains filled. An automatic relief valve k may be fitted.
Patent GB-151730-A (GB)
Title: Roller cage for roller bearings
IPC: F16C33/54
Filed: 1919-06-30
Abstract: 151,730. Rydberg, T. A. T. June 30, 1919. Channels in roller bearings.-A cage for roller bearings is designed to allow for circulation of lubricant. The rollers rotate on pins 7 which are grooved to convey lubricant. In a modification, the rollers are provided with trunnions in place of the pins 7, and are formed with axial bores for the passage of lubricant.
Patent GB-141393-A (GB)
Title: Improvements in or relating to pumps and motors
IPC: F01B3/00
Filed: 1918-10-11
Abstract: 141,393. Variable Speed Gear, Ltd., and Robson, J. Oct. 11, 1918. Cam-actuated pumps; stroke, varying; revolving-cylinder pumps.-In a revolving-cylinder pump or motor of the kind comprising a cylinder body having a number of cylinders, the open ends of which end at a flat face rotating against a flat valve plate situated in a plane transverse to the axis of rotation of the body, the cylinders are arranged at an angle between a position parallel to, and one at right-angles to, the axis of rotation, and have pistons D arranged in loose contact with an adjustable or fixed ring K or other suitable device, the cross-sectional area of the main portion of each cylinder being such that its projection on a plane parallel to the end face of the body B is greater than the cross-sectional area of the outlet F. This arrangement prevents the delivery pressure from moving the rotor away from the face of the valve plate H. The two parts of the rotor are forced towards the plates H by springs N. The ring K may be mounted on trunnions J<x>, and its angularity may be adjusted by means of a lever J<1> or by a rod engaging a stud on the periphery of the ring. The casing may have a replenishing non-return valve. The pump &c. may be made single-acting by omitting one of the rotors B, one of the rings K, and one of the plates H.
Patent GB-247454-A (GB)
Title: Improvements in electric heaters for heating liquids
IPC: H01C10/02
Filed: 1925-06-29
Abstract: 247,454. Veronneau, L. H. June 29, 1925. Heating by electricity.-In an electric liquid heater comprising an outer perforated cylindrical electrode surrounding and spaced from an inner electrode, the latter consists of a carbon composite portion and a non-magnetic element contacting therewith and exposed to the liquid. In Fig. 1 the inner electrode comprises carbon rods 37, 37a in a non-magnetic metal sheath 38 insulated at 38a from the outer perforated electrode 43. The portion 37a may be adjusted to vary the current consumption by a screwed vulcanite rod 41. The device is screwed into a liquidcontaining tank 45. In Fig. 2 the inner electrode comprise alternate washers 57, 58 of carbon and brass or copper threaded on a rod 52 mounted in insulating bushes in an outer perforated electrode 53. A number of heaters may be installed in tank and connected in series or parallel to switches arranged to cut out one or more heaters.
Patent GB-515493-A (GB)
Title: Process for producing developed silver pictures from silver halide emulsions in blue-black tones
IPC: G03C5/305
Filed: 1938-06-03
Abstract: 515,493. Photographic emulsions; developing. I. G. FARBENINDUSTRIE AKT.-GES. June 3, 1938, No. 16680. Convention date, June 19, 1937. [Class 98 (ii)] Developed silver pictures in blue-black tones are produced from silver halide emulsions by adding to the developer or to. a preliminary bath or causing to be present during the development by adding to a layer or other component of the material or to its component materials a dialkylated derivative of 3-alkyl-2-thiohydantoin. The compound may be added to the raw material for the emulsion, or to the emulsion in any stage in its manufacture, or the finished emulsion layer may be bathed in a solution of the compound before exposure. The compound may be incorporated in an adhesive layer between the emulsion and the support,. in a sub-layer, in a backing layer, for example a non-curling or antihalation layer, in a' protecting layer, or in the barta layer, or may be incorporated in the paper pulp or in the size. Compounds referred to are 3 : 5: 5-trimethylthiohydantoin and 3-ethyl- 5: 5-dimethyl-thiohydantoin.
Patent GB-656409-A (GB)
Title: Conditioning plant for moulding sand
IPC: B22C5/04
Filed: 1948-06-22
Abstract: 656,409. Mechanical projectors or throwers. SOC. POMPES NOEL, and BOUCHER, J. June 22, 1948, No. 16726. [Class 78 (i)] [Also in Groups XIII and XXII] Plant for reconditioning used moulding sand by throwing it several times is characterized in that the plant is arranged so that a broad jet of sand is separated into two parts, one of which is returned to the throwing means. The used moulding sand is fed to a projector belt 28 and the top part of the projected sand 30 is received in a hooded container 32 but the lower part is returned by curved shoots 36 to the bottom of the belt 28 to be projected again. In place of one belt 28 a first belt 40, Fig. 3, may throw the sand on to a belt 41 which projects it to fall partly into a container 32 and partly on a shoot 35 which returns it to the bottom of the belt 40.
Patent GB-882158-A (GB)
Title: Improvements in or relating to apparatus for carrying out endothermic gaseous reactions
Inventor: MILNER GEOFFREY
IPC: B01J19/24
Filed: 1960-05-12
Abstract: <PICT:0882158/III/1> <PICT:0882158/III/2> In a tube furnace 2 for carrying out gaseous phase reactions in the presence of a nickel catalyst, each nickel-chrome steel tube 1 is clamped to the bottom 5 by a device 6 and is suspended by a cable 25 attached to a frame 23 having a collar 21 welded to the tube, the cable passing over pulleys 26, 27 and carrying counterweights 32.  The clamping device 6 comprises semi-circular members 12, 13 with ring parts 14, 15 engaging grooves 11 in ring segments 9, 10 welded to the tube. Members 12, 13 also have webs 16-19 bolted on opposite sides of lugs 7, 8 welded to the furnace bottom 5.  Fluid reactants are fed from a manifold 33 and products are withdrawn through a manifold 34.  The burners 52 may be located in external combustion chambers.  The furnace may be used for the reforming or thermal cracking of hydrocarbons.  In a modification, Fig 5 (not shown), the tubes rest on girders below the furnace, and the cable is attached to a pivoted lever carrying counterweights.  Specification 517,744 is referred to.
Patent GB-673158-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/32
Filed: 1950-07-05
Abstract: 673,158. Suction cleaner handles. HOOVER Ltd. July 5, 1950 [July 7, 1949], No. 16808/50 Class 61 (i). [Also in Group XXVIII] Control mechanism for a pivoted suction cleaner handle 13, Fig. 2, which may be locked.- in the upright storage position and released by forward movement of the handle comprises a. latch 21 carried thereby and engaging a detent 29 on the cleaner body, and means e.g., curved surfaces 30, 31 for shifting the latch laterally in relation to the detent 29 when the handle is moved forward beyond the storage position and is then moved back, resulting in the latch 21 clearing the detent 29. The handle 13 fits into a bifurcated socket 16 pivoted about a pin 17 between body brackets 11, and upwardly biassed by a spring 18. The latch 21 is pivoted about a socket pin 20 and projects through a slot 22 so that during normal working conditions its hooked end 23 rides along a track 24 formed in the upper surface of a body bracket 25. When the handle approaches the storage position the hook 23 enters a locking track 27 and engages the detent 29, and on forward releasing movement of the handle the hook 23 is guided by the surface 30 into a by-pass track 28, Fig. 3, located below the surface 30. On rearward movement of the handle the hook 23 traverses the track 28 until it is guided by the surface 31 back to the track 24 which is disposed below it. A wall 32 assists to prevent premature lateral displacement of the hook from the track 28. The upper and lower limits of normal handle displacement are determined by engagement of the end 36 of a spring 35 with the forward and rear ends of a socket slot 37. The end 36 is overridden by applying extra force to effect the forward releasing movement, and similarly the rear end of the slot 37 is overridden when lowering the handle below its normal range. A positive stop 40 limits the forward releasing movement. In a modification the lateral displacement of the latch 21 is effected by shaping the socket slot 22.
Patent GB-1387022-A (GB)
Title: High resolution redundant hologram imaging apparatus
Inventor: LURIE M J
IPC: G03H1/32
Filed: 1972-04-12
Abstract: 1387022 Holography RCA CORPORATION 12 April 1972 [14 April 1971] 16816/72 Heading G2J Hologram recording apparatus comprises a multiplicity of spaced sources of mutually coherent light arranged in a given matrix 132, as a pinhole array the size of which sources and the spacings there between providing a desired wave energy distribution in a given volume of space and forming at a predetermined distance S from the matrix within a selected region of said volume a first interference pattern having a structure which is fine compared with that of the matrix, means for positioning an object 134 within said region at said distance S from the matrix whereby the object spatially modulates the illuminating light from said matrix which is sufficiently fine to sample the object with a resolution at least equal to a desired limit, means for positioning a record medium 130 such that the spatially modulated light illuminates a given area, and a mutually coherent reference beam 122. The matrix is preferably a square pattern giving a first interference pattern comprising an array of spots equal to a multiple of the number of the sources. Preferably the pinholes are a maximum of 10 microns diameter and separated by 5 to 10 times that amount. Optimum redundancy is obtained when the object 134 is located distance S from the matrix 132. In one embodiment the object 134 is also located in the front focal plane of a lens 138 and gives rise to a Fourier transform hologram. In a second embodiment, Fig.3, the pinhole matrix 306 is located in the front focal plane of a lens 308 which converges the light therefrom in a plane 314. A spatial filter 318 is located in this plane 314 to block out the zero orders. The plane 314 is also located at the front focal plane of a lens 320 which forms an image of the matrix in plane 326 in the back focal plane of lens 320. The object is situated in the diffraction image plane of the image matrix. A projection lens is located between the object and the record medium. In a further embodiment lenses 308, 320 are replaced by a single lens. The pinhole matrix is located at one side of the lens by an amount greater than the focal length, and an image is formed on the other side of the lens beyond its back focal plane. Zero orders are again blocked by a spatial filter located at the back focal plane of the lens.
Patent GB-439681-A (GB)
Title: Improvements in or relating to engine control devices, more especially for motor vehicles
IPC: B60K31/12
Filed: 1934-06-06
Abstract: 439,681. Centrifugal switches. BURGESS, G. C., Ivydene, Preston Road, Wembley, Middlesex, and DORER, P. O., 219, Dollis Hill Lane, Cricklewood, London. June 6, 1934, No. 16855. [Class 38 (v)] [See also Group XXVI] A centrifugal governor, operating a switch controlling a solenoid which closes or partly closes a valve in the induction pipe of a vehicle engine, is connected to a movable contact of the switch through tumbler mechanism so as to provide a quick make-and-break of the solenoid circuit and also to prevent rapid opening and closing of the valve when the vehicle is travelling at or nearly at the speed at which the device is intended to act. In the construction shown a governor unit 23 is mounted in a casing 20 adapted to be attached to the gear-box (not shown) and inserted in the speedometer drive, the governor shaft 24 having one end 25 which fits the existing speedometer driving coupling in the gear-box, and the other end of the governor shaft having a coupling 27 to receive the end of the flexible shaft connected to the speedometer. The governor rocks a lever 33 which is pivoted at 44 and has a forked end engaging a pin 34 in a pair of spaced arms 35 pivoted at 53 to the casing. A switch arm 36, also pivoted at 53, carries a contact 37 adapted to bridge fixed contacts 38, and a tension spring 39 extends between the end of the arm 36 and the pin 34 on the arms 35. Thus, as the vehicle speed rises the governor sleeve 29 moves to the right, lever 33 rocks in the counter-clockwise direction and moves pin 34 to the right until it passes over the dead centre position when the spring 39 snaps the arm 36 over and closes the switch.
Patent GB-1137095-A (GB)
Title: Improvements in or relating to glass melting apparatus
Inventor: ADAMS OSBORNE
IPC: C03B5/167
Filed: 1966-04-18
Abstract: 1,137,095. Glass melting furnace walls. GENERAL ELECTRIC CO. Ltd. 14 July, 1967 [18 April, 1966], No. 16928/66. Heading F4B. . A glass melting furnace has the tank block<SP>s</SP> or the inner surface thereof formed of a mixtur<SP>e</SP> of ZrO 2  and CeO 2  (10%-30% by weight), at least one electrode disposed in contact with the melt and an external connection between the blocks and the electrode(s), whereby a galvanic current passes through the melt, positive ions reacting with the electrode to produce a substance soluble in or compatible with the melt and negative ions are liberated at the inner surfaces of the blocks. The electrode(s) comprise Mo or W metal, or sintered SnO 2  plus an additive. The electrode and block materials may be exchanged and they may be connected to an external current source. Each electrode may be a replaceable block included in the tank wall and both blocks and electrodes may be formed by isostatically pressing and sintering ZrO 2 /CeO 2  powders with an addition of 1 % Sb 2 O 3  or SnO 2 . Parts of the surfaces of the blocks may be coated with metal to provide suitable electric contact surfaces.
Patent GB-439500-A (GB)
Title: Improvements in contact pile-ups for electrical apparatus
IPC: H01H1/28
Filed: 1934-06-07
Abstract: 439,500. Switch contacts. STANDARD TELEPHONES & CABLES, Ltd., and TERRY, R. ST. G., 63, Aldwych, London. June 7, 1934, No. 16950. [Class 38 (v)] A contact pile-up for a light current relay or the like comprises a pair of contact springs 2 and three insulating plates 3 placed on the yoke 1 of a relay. On the upper strip 3 is a metal buffer strip 4 and a corrugated spring strip 5 and finally a metal strip 6. Screws 7 pass through the whole pile and screw into the yoke 1 to clamp the pile firmly in position. The corrugated strip 5 serves to accommodate any change in dimensions of the insulating strips 3 due to heat or moisture. If desired, the corrugated strip may be placed next to the yoke 1.
Patent GB-1415666-A (GB)
Title: Methods and apparatus for the location of sources of pulse like signals
IPC: G01S5/04
Filed: 1972-04-12
Abstract: 1415666 Locating acoustic pulse sources UNITED KINGDOM ATOMIC ENERGY AUTHORITY 12 April 1973 [12 April 1972] 16967/72 Heading H4D A fault acting as an acoustic source when a test material is stressed mechanically is located by determining the delay between the instants when two spaced sensors of a first pair receive a pulse, determining the delay for a second pair of sensors, and controlling respective deflection systems of an oscilloscope in response to the two delays. Three sensors may be used, but preferably four are used so that spurious noise can be monitored and rejected. Further rejection of noise is provided by frequency-band selection. For testing a pressure vessel being pressurized, four piezo-electric transducers fixed to its surface are coupled via pre-amplifiers, a pulsetimer and a computer to the oscilloscope. The computer sorts the timer output signals to select delays corresponding to defect locations. The oscilloscope is of the storage type and displays spot clusters representing defect locations. The display screen may be divided into quadrants to present four different "views" of the same defects, and may display also a likeness of the pressure vessel. For each transducer pair a plot of the numbers of pulses received against their delays is derived as a guide to defect type and extent. The resulting six plots (in the case of four transducers being used) are displayed as traces on a separate oscilloscope. A test pulse transmitted through the vessel is analysed to determine attenuation of the defect pulses.
Patent GB-403575-A (GB)
Title: Improvements in and connected with flasks for moulding and/or vulcanising dental plates
IPC: A61C13/16
Filed: 1933-06-14
Abstract: 403,575. Dental flasks. DENNEY, C. E., 100, Trafalgar Street, and WAKELIN, A. J., 9, Lintott Avenue, both in Brighton, Sussex. June 14, 1933, No. 16988. [Class 87 (ii).] A flask for use in moulding and vulcanising dentures &c., comprises a lower member 2 and a ring 6 which seats thereon and forms a continuation of the wall of the flask, detachable closures 1, 9 being provided for the lower and upper members. The parts of the flask are pressed together by a sleeve 3 making a bayonetjoint with projections 15 on the part 2. Lugs 4 on the part 2 engage with recesses in the ring 6 to prevent relative rotation, the lugs and/or the recesses being chamfered to centre the ring 6 accurately. The ring 3 may be fitted with a handle of approximately semi circular form, pivoted at its ends to the ring and adapted to lie closely around the ring until the flask is to be removed from the vulcanising chamber. When used for moulding, the sleeve 3 is dispensed with and the ring 6a Fig. 3, is formed with diametrically opposite guides 18 which engage the lugs 15. Vents 19 for excess material are formed in the lower rim of the member 6a.
Patent GB-907187-A (GB)
Title: Liquid-liquid extraction process for the recovery of high purity thorium oxide
Inventor: CHRISTENSEN CHARLES
IPC: G21C19/46
Filed: 1960-05-13
Abstract: <PICT:0907187/III/1> Thorium is recovered from aqueous mineral acid solutions by countercurrent extraction with a solution in an organic solvent of an alkyl phosphate other than dibutyl or tributyl phosphate, the organic solution also containing about 5% by weight of dibutyl or tributyl phosphate, and thereafter stripping the thorium from the organic solution by successive countercurrent extractions with an aqueous sulphuric acid solution and an aqueous alkali metal carbonate solution.  The initial thorium solution may be obtained by leaching a thorium ore with a mineral acid, for example hydrochloric acid.  The alkyl phosphate may be monoheptadecylorthophoric acid; 2,6,8-trimethyl nonyl orthophosphoric acid-2; monotridecylorthophorphoric acid; or 5-ethylnonylorthophosphoric acid-2.  Prior to stripping thorium from the organic solution, impurities may be removed by countercurrent extraction with hydrochloric acid.  In a modification, the thorium is extracted with an organic solution of an alkyl phosphate other than dibutyl or tributyl phosphate, the organic solution is then extracted by hydrochloric acid or sodium carbonate solution to remove any uranium, thereafter dibutyl or tributyl phosphate is added to give a concentration of about 5% by weight, after which the thorium is extracted by successive countercurrent extractions with an aqueous solution of sulphruic acid and an aqueous solution of an alkali metal carbonate.  The two aqueous solutions, now containing the thorium, may be combined, the pH is appropriately adjusted, the solution is heated, oxalic acid is added, and thorium oxalate precipitates, which may be recovered and calcined to produce thorium oxide. Fig. 4 is a flow diagram of a process according to the invention.
Patent GB-805145-A (GB)
Title: Improvements in or relating to indirectly-heated cathodes for electric discharge valves and processes and apparatus for the manufacture thereof
IPC: H01J1/28
Filed: 1956-06-01
Abstract: 805,145. Making cathodes; assembling force fits. SIEMENS & HALSKE A.G. June 1, 1956 [June 3, 1955], No. 17035/56. Classes 83 (2) and 83 (4). [Also in Group XL (a)] In an L-cathode, the discshaped porous closure cover 12 is a tight push fit in the container 9, so that no gaps larger than the pores are left between them. The container, of tantalum, is firmly held in a die 8 with its top slightly protruding. The closure, of tungsten or molybdenum, slightly oversized to ensure a tight fit, is gripped in a chuck 11, which is moved coaxially towards the die until the closure just enters the container. A preliminary trial with a centring tool may be made to test concentricity. The chuck is then disengaged from the closure and loaded with a punch, by which the closure is forced completely home, abutting against a locating shoulder. Thus no heating process such as welding or soldering is necessary. The punch may then be replaced by a further punch 14, so shaped as to stamp a circular groove in the rim of the container, deforming it slightly to grip the closure more tightly still. Instead of being plane on both sides, the closure may be concave on either the inner or outer surface (Fig. 1, not shown).
Patent GB-248619-A (GB)
Title: Improvements in road making
IPC: E01C7/18
Filed: 1924-08-30
Abstract: 248,619. Radcliffe, J. Aug. 30, 1924 Roads and ways, special materials for; macadamized roads.-A, bituminous material for making, surfacing, or patching roads by a cold process consists of a mixture of powdered oilpitch, having a melting point of substantially 230‹ F., and a fine mineral or organic aggregate such as sand. The aggregate is preferably wetted with fuel oil which acts to soften the pitch when the mixture is rolled in. Specification 236,050 is referred to.