baber/WOPTO huggingface dataset:
Patent GB-136342-A (GB)
Title: Improvements in or relating to the Purification of Ammonia.
Inventor: PARSONS CHARLES LATHROP
IPC: C01C1/02
Filed: 1919-01-20
Abstract: 136,342. Parsons, C. L., and Jones, L. C. Jan. 20,1919. Ammonia; ammonium phosphate.-Ammonia is purified from phosphine to render it suitable for catalytic oxidation to produce nitrogen oxides, by passing it through charcoal or other porous carbonaceous material, which may be activated by impregnating with a metal compound, for instance silver nitrate, and drying, with or without subsequent reduction in hydrogen. By this treatment, at a comparatively low temperature, the phosphine is oxidized and ammonium phosphate is formed and absorbed in the catalyst, from which it is removed by washing. The apparatus described consists of two chambers 3, 3<1> connected so as to be used alternately, and each containing a removable open cylinder 18 carrying the catalytic mass on permeable screens 19 within a steam jacket 10 through which pass air-pipes 11 secured in header plates 12, 13. When the catalyst in one chamber is exhausted, the chamber is cut out by means of the valves shown, and steam is admitted to the jacket by a pipe 17, and air to an annular chamber 14 by a pipe 16. The air traverses the pipes 11 and passes through the catalyst to expel absorbed ammonia. The cover 20 is then removed, and the cylinder 18 lifted out so that the charcoal can be washed or replaced.
Patent GB-208930-A (GB)
Title: Improved means for affixing finger prints to documents
IPC: A61B5/117
Filed: 1923-01-16
Abstract: 208,930. Reitze, E., and Trujillo, E. Jan. 16, 1923. Ink. - A non-staining ink composed of glycerine, gelatine, alcohol, and a coloured earth is provided for making finger-prints on documents. A pad impregnated with the ink and a damp sponge or the like for wiping the fingers are carried on the person in a pocket case.
Patent GB-415071-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/62
Filed: 1933-01-16
Abstract: 415,071. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, and McGEE, J. D., 9, King's Avenue, Ealing, both in London. Jan. 16, 1933, No. 1448. [Class 39 (i).] Cathode-ray tubes having a gas pressure of less than 10-<4> mm comprise a fluorescent or other screen 12, a cathode 5, a modulating electrode 6, electrostatic or electromagnetic deflecting devices 13 and, between the electrode 6 and the devices 13, two or more tubular anodes 7, 8 through which the ray passes and two of which have adjacent ends with apertures of equal area. The anodes 7, 8 may be cylinders with adjacent ends open as shown or with diaphragms at these ends having apertures of area greater than half the internal cross-sectional area of the anodes, these open ends or apertures subtending at the screen 12 an angle greater than À02 radians. The anodes 7, 8 and the electrode 6 may be sliding fits in a re-entrant glass tube 3 or the anodes may be sprung into the cylindrical part 1 of the envelope or formed as silver deposits on the envelope. The indirectly-heated, oxide-coated cathode 5 is of shallow pill-box form and is supported from a pinch 4 inside the tube 3. Electrons from a large area of the cathode pass through an aperture in a diaphragm 9 in the electrode 6 and through a small aperture 10 in a diaphragm at the end of the anode 7. Electrons diverging from the aperture 10 and passing through a larger aperture in a diaphragm 11 are focused on to the screen 12 by the "electron lens" formed by the field between the anode 7 and the higher-voltage anode 8. The insulated screen 12 may be of willemite and emits secondary electrons to take up a potential just below that of the anode 8. To avoid fluctuating charges on the wall 2 due to this secondary emission, the inner side of the wall is provided with a silver coating which may be semiconductive only and may be connected to the anode 8. The anode 7 is of a non-magnetic alloy of copper and nickel and the other electrodes are of nickel. Dimensions of the tube and its electrodes and operating voltages and current are specified. The gas pressure may be 10-<5> mm. Modifications are described in which three, five or more anodes are provided to form two or more "electron lenses" operating successively on the ray. The Provisional Specification describes also constructions in which the second tubular anode is larger than the first and in which the anodes are rings.
Patent GB-195793-A (GB)
Title: Improvements relating to weight or force indicating apparatus
IPC: G01G19/02
Filed: 1922-01-17
Abstract: 195,793. Whitehorn, H. K. Jan. 17, 1922. Hydrostatic apparatus.-Apparatus for weighing trucks &c. or for measuring other weights or forces comprises means for measuring the deflecticn produced by the load in a supported slab by measuring displacement of fluid from a closed space below the slab. A hollow steel casting with thick base and sides and a thinner top is filled with oil g and communicates with a pressure gauge f preferably calibrated to read in tons and cwts. The top of the casting may be applied by welding and is strong enough to sustain the maximum load when within its elastic limit. The materials of the apparatus and the contained fluid may be selected to minimize changes of pressure due to temperature variations. For convenience in driving the vehicle into position, the apparatus may be formed with slopes m which may be hinged. The normal pressure of the fluid may be higher or lower than atmospheric. In weighing a vehicle the wheels are preferably supported simultaneously each on one of the above described devices.
Patent GB-293650-A (GB)
Title: Improvements in rotary valves for internal-combustion engines
IPC: F01L7/02
Filed: 1928-01-17
Abstract: 293,650. Reeves, A. L. Jan. 17, 1928. Controlling flow of lubricant; visible feeds. -In a rotary valve 9 for an internal-combustion engine, oil is supplied to a port 24 through an adjustable needle valve 27, a sight glass being provided at 28.
Patent GB-1515831-A (GB)
Title: Method and means for the cultivation of plants
IPC: A01G9/10
Filed: 1977-01-14
Abstract: 1515831 Flower pots; seed trays J LAZARUS 14 Jan 1977 01607/77 Heading A1E The base of a flower pot or of each compartment of a compartmented seedlings tray is frangibly connected to the side walls to facilitate transplanting. As shown a seedlings tray has L- shaped drainage holes 5 separated by fracture zones 7 joining the base 6 of each compartment to the adjoining side walls 9. Alternatively grooves could be formed around the periphery of each base.
Patent GB-666412-A (GB)
Title: An electric fuse incorporating an electric current responsive tripping or actuating device
IPC: H01H85/30
Filed: 1949-01-20
Abstract: 666,412. Automatic circuit breakers; actuation of switches. E. M. P. ELECTRIC, Ltd., and HUMPHREYS, I. E. April 12, 1950. [Jan. 20, 1949] No. 1611/49. Class 38 (v). [Also in Group XXXVI] A fuse incorporating circuit - breaker trip device or switch actuating device comprises a cartridge or casing 5 containing explosive or other gas evolving material 6, a metering orifice 10 to control the outflow of gases and a fusible or heating element 7, the cartridge being arranged so that the outflow of gases moves the cartridge to cause the operation of a trip or actuating lever 15, Fig. 1. Alternatively the position of the cartridge may be reversed so that the outflow of gases acts directly, on the lever 15 to cause its movement, Fig. 2 (not shown). As shown, the device is incorporated in a cartridge fuse having an outer casing 3 filled with arc-extinguishing powder 8 and a housing 4 enclosing with substantial clearance the cartridge 5. The element 7 may be part of the fuse element or may be joined thereto at 12. The material 6 may be of a gas evolving, combustible or explosive nature and it is stated that by suitably relating the type and the size of the charge to the size of the orifice 10 the magnitude of the operating thrust may be accurately determined, so enabling the use of a cheaper mechanical construction. Normally the arrangement would be such that the fuse would operate to clear a fault before the device could trip the circuit-breaker. The Specification gives dimensions and other details for a device utilizing a charge of "black powder".
Patent GB-1484121-A (GB)
Title: Hydrometallurgical process for treating nickel mattes
IPC: C22B23/00
Filed: 1976-01-15
Abstract: 1484121 Hydrometallurgical extraction of Ni from Ni matte SOC METALLURGIQUE LE NICKEL-SLN 15 Jan 1976 [16 Jan 1975 12 Dec 1975] 01657/76 Heading C1A Nickel matte is refined by: (a) treating the matte in a divided state with chlorine in an aqueous medium in the presence of ferrous and ferric chlorides; (b) at least partially eliminating the iron contained in the solution obtained in step (a) by contacting the solution with an organic liquid-liquid exchange phase; (c) eluting the organic liquid-liquid exchange phase by contrasting it with a first aqueous regeneration phase; (d) eliminating metals other than residual nickel from the solution resulting from step (b); (e) electrolysing the nickeliferous solution from step (d) to produce pure nickel and chlorine which gas may be recycled to step (a). The matte may be treated in step (a) by placing in a first solution of iron chloride, contacting with chlorine at 2, separating at 8 into a nickeliferous liquid and a solid residue which is placed in suspension in a second solution of iron chloride at 4 which solution is also treated with chlorine and separated at 6 into a liquid which may be recycled to act as the first solution of iron chloride in 2 and a second solid residue from which sulphur may be extracted. The solution in step (b) may be treated with an organic phase containing tributyl phosphate and an aromatic diluent to recover some or all of the iron from the solution and the aqueous regeneration phase obtained in step (c) may be recycled to step (a). The removal of metals other than Ni, e.g. Cu, Zn, Co in step (d) may be carried out using an organic liquid-liquid exchange phase containing triiso-octyl amine and an aromatic diluent or a highly basic ion exchange resin. The nickeliferous solution obtained may be partially electrolysed to remove lead, contacted with a di-ester of orthophosphoric acid to remove Cr, Al, As and barium chloride to remove sulphate ions and electrolysed to produce nickel.
Patent GB-1449546-A (GB)
Title: Filter
IPC: B01D29/62
Filed: 1974-01-14
Abstract: 1449546 Bed filter with automatic cleaning ECODYNE CORP 14 Jan 1974 [29 Jan 1973] 01707/74 Heading BID Liquid delivered via valve 28 is filtered downwards through sand or anthracite bed 24 and passes through pipe 32 and inoperative backwash pump 40 to compartment 14, where filtrate overflow 44 maintains a level A so that bed 24 is always immersed, and a level sensing switch 62 above the bed initiates a cleaning cycle when the bed clogs. In the cleaning cycle, valve 28 is closed and air blower 54 started to clean the bed by reverse flow air scouring, float valve 38 preventing air from entering pipe 32. After 5 mins, a timer stops blower 54 and starts pump 40 to draw filtrate from compartment 14 and force it upwards through the bed, carrying the impurities through outlet 61. After 5 mins. the pump stops and valve 28 is reopened. Check valve 58 and by-pass 60 prevent flooding of blower 54, enabling its mounting below switch 62. Pump 40 is arranged with volute 50 immersed, so that it does not lose prime, but with motor 48 exposed. Nozzles 22 have air metering tubes 23.
Patent GB-778702-A (GB)
Title: Improvements in or relating to reciprocating pumps
Inventor: WELCH HAROLD GEORGE
IPC: F04B9/14
Filed: 1953-01-21
Abstract: 778,702. Reciprocating pumps. WELTIS ENGINEERING CO., Ltd. Jan. 21, 1953, No. 1805/53. Drawings to Specification. Class 102(i) The subject-matter of this Specification is similar to that described in Specification 778,701 but the claims differ. Specifications 778,703 and 778,704 also are referred to.
Patent GB-1328941-A (GB)
Title: Heat exchangers
IPC: F28D9/04
Filed: 1972-01-14
Abstract: 1328941 Plate heat exchangers RITTERSHAUS & BLECHER GmbH 14 Jan 1972 [23 Jan 1971] 1905/72 Heading F4S In a plate heat exchanger particularly suitable for heating slurry-like fluids and comprising a plurality of separable grooved plates 5 movably suspended on rollers 4 from a horizontal beam 4 supported by two columns 1 and 2, the plates are clamped together by means of an hydraulic actuator 6 which acts on a crosshead 7 movably suspended from the beam 3. The crosshead 7 is connected by tie rods 8, 9 to a platen 10 also movably mounted on the beam 3. The grooves 19, 19<SP>1</SP> in opposite faces of each plate 11 co-operate with the grooves in adjacent plates to define two alternate series of serpentine configured ducts 20 for the passage of the two heat exchange media. Suitably gasketed ports or holes 22 to 33 are provided to lead the media through the stack. The plates are sealed around their periphery by means of 0-ring seals 34. In an alternative embodiment (Figs. 5 to 7, not shown), the plates are formed with spiral grooves of semicircular cross-section, the resulting spiral ducts for the heat exchange media thus having a circular cross-section (see Fig. 7).
Patent GB-938952-A (GB)
Title: Device for driving large-sized gear rings
IPC: F16H57/02
Filed: 1960-01-19
Abstract: 938,952. Toothed gearing. F. DURAND. Jan. 19, 1960 [Jan. 27, 1959], No. 1908/60. Class 80 (1). In a device for transmitting motion to a large-size gear-ring 1, a driving pinion 3 is mounted in a trolley connected to at least one fixed point through a tie-rod, the trolley comprising two plates 5 disposed on either side of the outer peripheral portion of the gear-ring and provided with guide rollers 7, 7a, 8, 8a, 9, 9a, 10, 10a coacting with the circular guide races 11, 11a concentric to and rigid with the gear ring 1. The trolley includes distance pieces 6 and a transverse wall member 5a. Rollers 14 are adapted to locate the trolley axially. The trolley is held against movement by a tie-rod 13 preferably provided with universal joints at its ends. A driving shaft 4, carrying the pinion 3, is mounted in the trolley by means of ball or roller-bearings 7. In a modification, the trolley 5b, Fig. 4, is connected to opposite fixed points 17, 17a by damping arms 13, 13a and only four guide rollers 9b, 10b, 9c, 10c are provided. The driving shaft 4 supports a reducing gear 18 which is interposed between a power shaft 19 and the driving pinion 3. A pair of flanged rollers 21b, 21c coaxial with the driving pinion 3, are effective to hold the trolley 5b in the proper axial position. In a further modification, shown in Fig. 5, a trolley 5d has two rollers 7d, 8d engaging the outer face of a guide rib 11d and a single roller 7e mounted on the shaft 4 of pinion 3 to engage a corresponding guide rib. An additional pivotally mounted damping arm 22 is provided at right-angles to the damping arm 13. Preferably the damping arms 13, 22 consist of hydraulic shock absorbers, and in this case a balance line 25 may be provided between them.
Patent GB-763185-A (GB)
Title: Apparatus for airborne electromagnetic prospecting
IPC: G01V3/16
Filed: 1954-08-17
Abstract: 763,185. Electric geophysical exploration. CANADIAN AIRBORNE GEOPHYSICS, Ltd. Aug. 17, 1954 [Aug. 31, 1953], No. 1937/56. Divided out of 763,184. Class 37. In inductive geophysical exploration wherein an A.C. signal is transmitted from an aircraft, the receiving coil is trailed as near to the earth's surface as practical, the tow-line consisting of a single thin cable, and the pick-up voltage being transmitted by radio to the aircraft as L.F. modulation of an R.F. voltage.
Patent GB-1073994-A (GB)
Title: Improvements in or relating to chart position indicating apparatus
Inventor: ARMSBY REGINALD DEREK
IPC: H03M1/00
Filed: 1965-01-15
Abstract: 1,073,994. Electric selective signalling. DECCA Ltd. Dec. 1, 1965 [Jan. 15, 1965], No. 1970/65. Heading G4H. [Also in Division G1] In a course recording apparatus in which a stylus repeatedly marks a translucent chart to indicate the instantaneous position of a craft in at least one co-ordinate direction, the chart is movable relative to the stylus in the one direction and is provided at one edge thereof with a plurality of tracks 35 of digitally coded opaque markings which are adapted to co-operate with an equal number of photo-cells 36 connected so as to provide signals representing the coordinate, in the one direction, indicated by the position of the stylus relative to the chart, the chart adjacent the photo-cells 36 being illuminated on the opposite side thereof by the provision of a translucent member 39 having one narrow face 40 extending the whole width of the markings and another face arranged adjacent two lamps 37, 38, the member 37 being so shaped that light from the lamps is guided down the member to leave the narrow face 40 and impinge on the chart. The member 37 is preferably of glass or polymethylmethacrylate and is shaped to diverge from the face adjacent the lamps 37, 38 to span the width of the markings, and also to provide a converging arcuate path to the narrow face 40 which is parallel to the.plane of the chart. The tracks 35 are preferably coded in a Gray code, nine tracks being used for digital position signals. Further tracks may be used to control a computer associated with the apparatus.
Patent GB-646181-A (GB)
Title: Improvements in or relating to flow indicators for fluids
IPC: G01P13/00
Filed: 1948-01-23
Abstract: 646,181. Fluid-flow indicators. WALTER, L., and POTTS, F. J. Jan. 23, 1948, No. 2056. [Class 110(ii)] [Also in Group XX] A flow indicator for fluids comprises a body adapted for connection in a pipeline or other fluid channel to form a chamber through which the whole of the fluid passing flows, the chamber having a spindle therein which carries an impeller the fluid flow over which causes continuous rotation of the spindle to produce continuous rotation of an indicating member outside the chamber through the agency of magnetic drive means, one component of which is fixed on and rotates with the spindle, and manually operable means to damp adjust ably the rotation of the spindle. As shown in Fig. 1 the impeller 22 is mounted or needle bearings 23, 24 in an enlarged portion of the pipeline located between the inlet and outlet connections 16, 17. Internal ribs in the enlarged portion locate a sleeve 20 and also define channels 36, 37 so that the fluid flows over the impeller at right angles to the axis of the inlet and outlet connections, through the sleeve 20 and its port 38. The sleeve 20 may be moved along its own axis by screw-means 39 thus varying the size of a bye-pass for direct flow of the fluid between connections 16 and 17 in order to reduce the speed of rotation of the impeller when required. A magnet 28 is mounted on the impeller spindle to rotate therewith and co-operates with a similar magnet 35 mounted on the indicator spindle 33 which is coaxial with the impeller spindle, and is mounted in bearings 31, 32 in a cage or framework 29 so that the indicator mechanism is external to and separate from the impeller chamber. The spindle 33 carries the indicator in the form of a disc 34 suitably marked to render it clearly visible. In a modification, the indicator is in the form of a bell carrying four equally spaced pole pieces secured to its inner wall and adjacent the poles of a cruciform magnet mounted on the impeller spindle. In another modification the damping of the rotation of the impeller is achieved by varying the pitch of the impeller blades. In the embodiment shown in Fig. 6 the impeller spindle 57 is mounted in the direction of flow and the blades 56 are provided with magnets 61 which cooperate with four equally spaced iron pole pieces 67 secured to the indicating member 62 so that the rotation of the impeller causes a step-by-step drive of the indicator at half the speed of rotation of the impeller. In this embodiment the rotation of the impeller may be damped by the masking action of cone-shaped element 68 pivoted at 70 whose position may be varied between those shown in dotted and full lines respectively, the cone 68 being provided with a groove to permit clearance of the spindle 57.
Patent GB-751965-A (GB)
Title: Improvements in or relating to carding machines
Inventor: FRASER HUGH
IPC: D01G15/46
Filed: 1954-01-23
Abstract: 751,965. Cleaning arrangements in carding- engines. FRASER & SONS, Ltd., D. Jan. 17, 1955 [Jan. 23, 1954], No. 2097/54. Classes 120 (1) and 120 (3). In a carding-engine, non-fibrous waste discharged at the point where the carded material passes around the doffer roller 2 and is removed therefrom by a drawing roller 3 and pressing roller 4 is deflected away from adjacent working components by a plate comprising a fixed portion 5 and an adjustable portion 6 pivoted there at 7 and securable by means of a slotted quadrant 8 co-operating with a fixed pin and clamping nut 9.
Patent GB-807130-A (GB)
Title: An improved warning light for a motor car
IPC: B60Q1/38
Filed: 1957-01-21
Abstract: 807,130. Road-traffic signals on vehicles. FOSTER, C. E. Jan. 21., 1957, No. 2121/57. Class 118 (2). A warning lamp at the rear of a vehicle, also fitted with stop lights is illuminated when the throttle is closed and is extinguished when either the throttle is opened or the brakes are applied to illuminate the stop lights. Stop lights 26 and a warning lamp 11 are connected respectively to the change-over contacts of a relay-switch 16. The lamp 11 may be in a casing with amber coloured window situated at the rear of a vehicle (as in Fig. 1, not shown). A flasher 17 is included in the circuit to the lamp 11. The relay-switch 16 is supplied via the ignition switch 14 and a micro-switch 15 which is operated by an arm 23 secured to a throttle control shaft 22 such that switch 15 is closed when pressure is removed from the vehicle accelerator pedal. As the relay-switch 16 is spring-biased to the position shown the lamp 11 lights when the accelerator is released and extinguishes when it is depressed. A switch 29 is closed when the brake pedal 27 is depressed and energizes the relay 25 to cause the switch 16 to change over and illuminate stop lamps 26, at the same time breaking the circuit to the warning lamp 11.
Patent GB-867128-A (GB)
Title: Improvements in or relating to tonometers
IPC: A61B3/16
Filed: 1959-01-20
Abstract: 867,128. Tonometers. OCULUS OPTIKGERATE G.m.b.H. Jan. 20, 1959 [Jan. 20, 1958], No. 2151/59. Class 81 (2). [Also in Group XIX] In a tonometer, in which a pressure member 7 is loaded with weights to apply pressure to the eye and the depth of penetration of the pressure member into the eye is measured, the upper edge of the pressure member is reproduced optically on a scale 13 by a beam of light. The pressure member 7 has a flange 8 for receiving weights and is slidable in a guide comprising a cupshaped portion 2, which in use is held against the eye, connecting pieces 4 and a tube 6 extending into a casing 16. The casing is slidable on the guide and serves as a handle. A battery-operated lamp 22 having a single long filament parallel to the tube 6 is supported by the casing and serves with a lens 10 and reflector 11 in a tube 9 to produce an image of the upper edge of the pressure member on a luminous scale 13 supported by the tube 6. A spirit level 29 at the top of the casing is used to arrange the apparatus with the pressure member and guide vertical, light from the lamp 22 then being directed by a prism 31 and a lens 32 to a spot on the ceiling vertically above the apparatus. The apparatus is used with the patient looking at this spot of light.