baber/WOPTO huggingface dataset:
Patent GB-1298600-A (GB)
Title: Nuclear reactors
IPC: G21D5/14
Filed: 1970-03-18
Abstract: 1298600 Nuclear power plant ATOMIC ENERGY OF CANADA Ltd 18 March 1970 [21 April 1969] 13023/70 Heading G6C In a nuclear reactor power plant, superheated steam is generated in heat exchangers heated by the reactor coolant. The reactor core comprises independent coolant flow paths connected separately to the evaporator and superheater exchangers. Heavy water flowing in the tubes 2, 3 of the reactor core 1, heats the preheaters 10, 11 and heavy water flowing in the separate tubes 4, 5, heats the superheaters 12, 13. Superheated steam passes to the turbines 15, 17 and is returned as feed water, by the pump 14 to the preheaters. In a further embodiment, a deuterium moderated reactor has two separate cooling circuits, one using boiling light water and the other employing an organic coolant. Alternatively, liquid lead-bismuth is employed as the core coolant.
Patent GB-474982-A (GB)
Title: Improvements in or relating to vacuum-tight seals for electric current leads into quartz
IPC: H01J5/32
Filed: 1936-05-08
Abstract: 474,982. Uniting metal to vitreous material by heat. QUARZLAMPEN GES. May 8, 1936, No. 13028. Convention date, May 11, 1935. [Class 36] An electric current lead adapted to be sealed in a vacuum tight manner into quartz, more particularly the quartz envelopes of electric discharge tubes, consists of a strip of metal foil which at the edges is thinner than 20Á and in the middle of its width thicker than 20Á. The thin portions may be along a margin or border at least 0À5 mm., but preferably 1À0 mm., wide. The foil may be formed on both sides with convex surfaces or, as shown in the example, a strip of foil 5 with parallel defining surfaces may have its edges reduced or tapered to a thickness of less than 20Á by hammering, filing, or the like. Alternatively, thin strips may be attached by the pressure of rollers along the edges or margins of a strip of foil.
Patent GB-671677-A (GB)
Title: Improvements in stop valves, sluice gates and the like
IPC: E02B13/02
Filed: 1949-05-17
Abstract: 671,677. Valves. SMITH, E. C. BOWDEN-. May 17, 1950 [May 17, 1949], No. 13179/49. Class 135. A sluice valve in which a flap 5 is separable from its bearings, seats freely and rides over bearing surfaces when opening or closing, has the flap constituted of wood braced on either or both surfaces by steel ribs 20 and the bearing surfaces formed in part by tubular metal members 8, 9. The flap has an extension 10 terminating in a converse bearing 9 disposed between horns 12 on the valve frame 13 and bearing, when the flap is closed, on a convex bearing 8 carried by the horns. When the flap opens, a jaw 11 on the extension 10 co-operates with the bearing 8. Specification 242,087, [Class 135], is referred to.
Patent GB-292944-A (GB)
Title: Improvements in refrigerating devices
IPC: F25B17/06
Filed: 1928-05-04
Abstract: 292,944. Keith, D. F. June 27. 1927, [Convention date]. Refrigerating, absorption machines for.-A portable, valveless absorption refrigerating machine working on the reversing system comprises a generator-absorber 7 having channelled ribs 8 and an evaporator-condenser 1 having an ice pocket 1<a>, the generator and the evaporator being connected by a duct 4 having a liquid seal through which pass the gases from the generator, a rectifier 20, a handle 5, and a bracket 32 bv the aid of which the machine is supported in the generating-condensing position, Fig. 7. The machine is supported in the evaporating position by a clip 28, Fig. 5, on the inside of the freezing cabinet engaging an air-insulated extension on the tube 3. A steam-actuated whistle 14<a> disposed in a compartment 9 above the generator indicates when a desired temperature has been reached. During generation, the refrigerant vapour passes through the tube 17, vessel 18, tube 19 and liquid seal into the duct 4, the vapour passing around the vessel 20, in which solvent liquid entrained with the vapour collects, and through the perforate pipes 2 into the evaporator; during evaporation and absorption, the vapour passes in the reverse direction through the duct 4 and through the tubes 16, 16b to the liquid in the generator.
Patent GB-638754-A (GB)
Title: Improvements in and relating to the synthesis of primary alcohols
IPC: C07C29/16
Filed: 1947-05-16
Abstract: Primary alcohols are prepared by reaction of an organic compound containing olefinic unsaturation with carbon monoxide and hydrogen in presence of a hydrogenation catalyst at above 300 atmospheres pressure and a temperature above 250 DEG  up to 400 DEG  C., preferably 325-1500 atmos. and 275-375 DEG  C.  The molar ratio of olefinic compound: CO : H2 is suitably between 1 : 2 : 2 and 1 : 5 : 20.  Suitable olefinic compounds and general conditions of reaction are as specified in Specification 614,010.  Copper with aluminium and/or cobalt is preferred as catalyst.  Preheating in hydrogen or partial poisoning with sulphur prevents hydrogenation of olefins to alkanes.  In examples, propylene is converted to butanols, and ethylene to propanols using catalysts comprising 1Cu : 0.1 Cr : 0.05 Co, 9 Cu : 1 SiO2 or 1 Cu : 1 SiO2 pressure being 1000 atmos. Aldehydes, esters and acids in the products may be reduced to alcohols by hydrogenation. Specification 637,999 also is referred to.
Patent GB-967996-A (GB)
Title: Friction type oscillation dampers
IPC: F16F7/04
Filed: 1960-04-14
Abstract: 967,996. Frictional vibration dampers. J. R. C. MOORE. April 13, 1961 [April 14, 1960], No. 13295/60. Heading F2S. A rotary vane mechanical friction-type oscillator damper is characterized in that at least one side of the, or each, co-operating pair of friction surfaces is formed of polytetrafluorethylene which has self-lubricating properties and static and dynamic friction characteristics which are substantially the same. As shown, a circular disc 6 of a blade 7 is clamped between the corresponding discs 4, 5 of a pair of blades 1, 2 by a bolt 8 and spider pressure members 9, 10 the faces of the discs 4, 5 which work against the corresponding metal surfaces of the disc 6 being faced with a thin layer, e.g. a few thousandths of an inch, of polytetrafluorethylene. Instead of providing a facing on the discs 4, 5 the disc 6 can be faced on both sides with P.T.F.E. Alternatively, none of the rubbing surfaces may be treated in which case discs of P.T.F.E., or metal on other discs faced with P.T.F.E., and positioned between the discs 4, 6, 5 are introduced on to the bolt 8. All of the interengaging faces may comprise surfaces of P.T.F.E. The pair of blades 1, 2 and the blade 7, which carry at their free ends a bush such as 3, may be formed of anodised aluminium, bright steel plate, polished brass or bronze, metal or chromium plate &c., to provide a good mating surface with the P.T.F.E.
Patent GB-132967-A (GB)
IPC: F03B13/18
Abstract: 132,967. Pelton, B. H. Jan. 14, 1919. Current motors; driving and transmission mechanism, special applications of. - A wave motor 20, adapted to be moved automatically up and down an inclined track 12 with the ebb and flow of the tide, drives an electric generator 27 or other machine through a spring-pressed friction clutch 28, 29, Fig. 3, a spiral spring drive 35, and a gear train. A float 50, Fig. 4, working in a tube 51 depending from the motor carriage, operates a switch-lever 55 according to the tide, the contact 60 serving to start an electric motor to drive the carriage in one direction along the track, while the contact 61 serves for the other direction.
Patent GB-426846-A (GB)
Title: Improvements in loud speakers
IPC: H04R9/02
Filed: 1934-05-03
Abstract: 426,846. Loud-speakers. ROLA CO., Cleveland, Ohio, U.S.A. May 3, 1934, No. 13430. Convention date, Feb. 28. [Class 40 (iv)] A loud-speaker in which the moving coil 14 and diaphragm 16 are centred in the magnetic air gap by.an external spider 17, has the air gap shielded against the entry of foreign particles by a layer 28 of soft fibrous material, such as felt, which is clamped between a fibrous washer 20 on the outer magnet pole 12 and one of the channel-shaped members 21, 22 between which the outer edge of the spider 17 is clamped. The felt layer 28 is pervious to the passage of air so as to avoid substantial damping of the diaphragm movement. The inner end of the diaphragm is closed by a cap 30 and the coil form 15 is provided with openings 31.
Patent GB-134937-A (GB)
IPC: F02P5/02
Abstract: 134,937. British Lighting & Ignition Co., and Bennett, A. E. Nov. 14, 1918. Interrupters, mechanical; timing devices. - In a timing-device for ignition in internal - combustion engines, the base F of the timing-lever E fits into a recess in the timing-ring B, so that the latter can be removed without disconnecting the lever E. The end cover C of the timing- device can be removed by unscrewing the milled flange D.
Patent GB-918247-A (GB)
Title: Process for moulding divisions in or for receptacles
Inventor: TYSON JOHN HODGSON
IPC: B29C65/18
Filed: 1960-04-12
Abstract: 918,247. Seaming non-metallic sheet material. HOLLINGSWORTH. MARSHALL & CO. Ltd. May 8, 1961 [April 14, 1960], No. 13531/60. Class 42 (1). [Also in Groups V and XVII] In a method for moulding receptacles having divisions plastic film 1 is moulded by conventional vacuum mould 2. The resulting moulding 3 is placed on card 4, which has a heatactivated adhesive coating on its upper surface and is supported on heated block 5, whilst die 6 presses the assembly together. Floor portions 7 as well as margins 8 are pressed on to the adhesive face of card 4. Margins 8 may be trimmed by a knife edge (not shown) during the pressing. Die 6 is generally (but not necessarily exactly) complementary in form to the moulding 3 and may conveniently be used in the first step of vacuum moulding to push the film roughly into position. Specification 905,306 is referred to.
Patent GB-1390986-A (GB)
Title: Shutter control mechanism
IPC: G03B9/70
Filed: 1972-03-23
Abstract: 1390986 Exposure time control EASTMAN KODAK CO 23 March 1972 [24 March 1971] 13614/72 Heading G2A A camera comprises an R.C. circuit for controlling shutter speed in accordance with ambient illumination and a mechanical arrangement for operating the shutter at a speed suitable for flash photography. As shown, when release 34 is depressed a switch S 1  is closed and a lamp 108 lights up if the ambient illumination is too low. Further depression of release 34 releases a drive wheel 40 which is rotated anti-clockwise by a spring 44 so that an arm 46 moves levers 17, 24 to open the shutter blades 11, 12. An extension 32 of lever 17 is held by a latch 70 until an RC circuit 92, 94, 100 de-energizes a coil 80. This releases latch 70 and a spring 19 returns arm 17 to close the shutter. When a flash-lamp is inserted into a socket 65 it moves a lever 76 which in turn moves latch 70 out of its latching position. Shutter release takes place as before except that lever 24 rotates until it closes a flash switch S 5  and then rebounds from a bracket 22 to strike lever 17 and close the shutter, i.e. the coil 80 is not used. If the battery fails and no lamp is inserted lever 24 will rebound from a stop 74 of lever 76 and strike lever 17 to close the shutter at the fastest speed at which the shutter is operable.
Patent GB-528433-A (GB)
Title: Improvements in the production of photographic sound records
IPC: G03C7/24
Filed: 1939-05-08
Abstract: 528,433. Kinematograph colour films bearing sound records. KODAK, Ltd. May 8, 1939, No. 13645. Convention date, May 6, 1938. Drawings to Specification. [Class 98 (ii)] A silver salt sound image is developed with a dye-forming developer producing a substantially neutral grey image opaque to the sound producing light. The sound record may be produced in at least one layer of multilayer material having three superimposed emulsion layers sensitized to blue, green and red, respectively, and having between the layers sensitive to blue and to green a yellow filter resistant to ordinary developing baths but removable in a bleaching bath. The sound image is developed after the colour development of the blue-green image. The multilayer film 1 preferably after exposure of the sound area only to yellow or red light from the emulsion side is developed to silver, the residual silver-halide in the red sensitive bottom layer is rendered developable by exposure through the support to red light through a red filter and developed bluegreen and the sound area only is exposed by means of a mask to white light from the emulsion side and developed by a developing bath, of which two formulae are given, comprising diethyl-p-phenylenediamine and pbenzylphenol. The film is then exposed through the support to white light and the middle layer developed magenta, and then exposed from the emulsion side to white light and the top layer is developed yellow. The silver, except where protected by the grey dye sound image, and also the yellow filter, are removed by treatment in a bath containing potassium ferricyanide and potassium bromide followed by treatment in a sodium thiosulphate bath. The residual silver halide in the middle layer may be rendered developable by treatment with fogging agents. Other coupling developing agents referred to are dimethyl-p-phenylenediamine, other dialkyl - p - phenylenediamines and amino - di - alkylaminotoluenes. The sound track may be recorded before or during processing. The production of sound images in all three layers in the respective colours, and of a silver sound image by protection of the sound track during colour-processing, is referred to. Specifications 440 032, 490,517, 492,648, 500,721, 500,796, 507,841 and 527,332 are referred to.
Patent GB-189414-A (GB)
Title: Improvement in curvilinear webbings
IPC: D03D3/06
Filed: 1922-05-15
Abstract: 189,414. Mills Belt Co., (Assignees of Jennings, V. H.). Nov. 25,1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Multiple fabrics; fashioned fabrics; fashioning, weaving to facilitate; slit-up fabrics; cutting-out, weaving to facilitate; fabrics of varying thickness. -A composite web is woven in a fly shuttle loom, and it is cut along lines x, Fig. 2, to form several curvilinear web sections 1 for use in making soft collars, the curvature being produced by feeding the warp threads (and woven fabric) faster at the long or convex edge of each web section than at the short or concave edge, and progressively varying the rate of feed of the intermediate warp threads. The convex edges of adjoining web sections may be juxtaposed, as shown, in the composite web, and also the concave edges, and the radius of curvature of each web section mav be the same. Warp threads may be omitted at the parts x to form longitudinally-extending thin places to guide and facilitate the cutting. The web sections may be made with fold lines 2 which may be produced, in a three-ply fabric, by omitting warp threads from the middle ply, as shown in Fig. 4. The three plies a are tied together in a known manner.
Patent GB-1175425-A (GB)
Title: An Improved Supporting Framework for Use in Combination with Trays
Inventor: BENNETT JOHN CAMPBELL
IPC: B65D25/06
Filed: 1967-03-23
Abstract: 1,175,425. Partitions for trays. J. C. BENNETT. 29 May, 1968 [23 March, 1967], No. 13741/67. Heading B8P. Partitions in a tray are erected from plastics side and cross strips 10, 11 by inserting T- shaped heads 14 on the cross strips through slots 11a in the side strips and then turning them through 90 degrees to engage in slots 12. The cross strips 11 have slots, &c.,13 to receive articles placed in the tray.
Patent GB-475128-A (GB)
Title: Improvements in or relating to the starting of internal combustion engines
IPC: F02N13/00
Filed: 1936-05-15
Abstract: 475,128. Starting; turning gear. BOSCH AKT.-GES., R. May 15; 1936, No. 13742. Convention date, May 18, 1935. [Class 7 (v)] An engine is started by firing in succession at least two cartridges, of which the first is the weaker, and allowing the gases produced to act directly on the pistons of the engine or upon the piston of a starting-motor. In one form, the cartridges are fitted in chambers on the cylinder heads, the first cartridge being fired manually and subsequent ones fired in succession by means actuated by a cam on the engine shaft. In the case of a starting-motor, Fig. 3, cartridge chambers i, k are provided on the cylinder g and the piston h is geared to the engine shaft by means of a rack and pinion. The cartridge in the chamber i is fired manually and that in the chamber k is fired later in the stroke of the piston by means of a rod m actuated by an arm n pivoted on the rack.
Patent GB-371178-A (GB)
Title: Improvements relating to valves
IPC: F16K3/36
Filed: 1931-05-09
Abstract: 371,178. Lubricating valves. LEACH, R. W. and BATEMAN, W: H., of Audley Engineering Co., Newport, Shropshire. May 9, 1931, No. 13777. [Class 12 (ii).] In a rotary disc valve controlling a passage g in the body b at one side of the axis of rotation, the disc a being pressed against its seating by a spring c, one or more grooves i formed in the face of the disc or in the seating and to which lubricant is adapted to be supplied under pressure, so as to release the disc prior to movement, are so arranged that the axial thrust exerted on the face of the disc around its axis of rotation by the lubricant has its centre of pressure sufficiently coincident with the centre of pressure of the fluid acting on the opposite side of the disc that the disc will be moved from its seating uniformly at all parts. The disc is rotated by a pinion d on an operating spindle g and engaging a toothed ring e in the disc. As shown, two annular grooves i in the face of the disc, interconnected by cross grooves p, are supplied with lubricant through a passage q from a chamber f, pressure being applied by a screw 2 in the spindle, the interior of which communicates with the chamber f through a passage z and contains a non-return valve 3. The outer groove i is uniformly narrow around the part adjacent the disc aperture h and is uniformly wide around the other part ; or.the width may increase gradually from a minimum to a maximum; or the groove may be of uniform width and have radial or other enlargements. Grooves s, t formed in the hub portion of the disc are supplied by-grooves v in the seating and short radial grooves w branching from the inner groove i. Specification 348,975 is referred to.
Patent GB-514689-A (GB)
Title: Improvements in or relating to means for operating sliding windows
IPC: E05F11/38
Filed: 1938-05-09
Abstract: 514,689. Windows. QUICKTHO (1928), Ltd., and QUICK, W. May 9, 1938, No. 13805. [Class 20 (iii)] Sliding windows, such as half-drop vehicle windows, operated by rack-and-pinion mechanism, the racks being on the movable sash, are provided with slipping-clutch means in the driving connections, whereby the sash may be both raised and lowered by direct pressure from either the inside or the outside thereof. In the construction shown, each vertical side of the sliding sash 2 is fitted with a rack 3, which is protected by a strip (not shown) fitted to the channel guide 5. A hollow rail 7 is mounted on the upper edge of a lower fixed pane (not shown) and at each end of the rail is mounted a sleeve 14 bearing a pinion 11 meshing with the rack. Each sleeve is formed with a ring of hemispherical protuberances 15 which engage with similar protuberances on a ring 16a formed on an inner sleeve 16. The latter fits slidably over the reduced end of the driving shaft 8 and is urged by a spring 17 to bring the protuberances 15, 16a. into mesh. The sleeve 16 is formed also with teeth 20 which engage with teeth 21 formed on a collar 22 fixed to the shaft 8. The shaft is driven through worm gearing by an operating handle and the motion thereof is transmitted to the pinion 11. When the window is raised or lowered directly by hand, the shaft 8 is held stationary by the worm gear and'the protuberances 15 on the pinion sleeves 14 slip past those formed on the spring-controlled sleeve 16.
Patent GB-466067-A (GB)
Title: A process for the separation of sulphuretted hydrogen from gases
IPC: C10K1/12
Filed: 1936-05-15
Abstract: 466,067. Washing-processes. KEMMER, H., and RASCHIG, M. May 15, 1936, No. 13863. [Class 55 (ii)] In a washing-process for the separation of hydrogen sulphide from coal gas as ammonium sulphide, the temperature of the water is between 5‹ C. and -5‹ C., and an excess of ammonia is maintained. The temperature is slightly above that at which ice is formed and is lower at the gas inlet. The gas enters the counterflow spray or bubbling washer at -8‹ C. In the presence of gases containing carbon dioxide, the temperature and ammonia content may be regulated so that, after washing out hydrogen sulphide, some carbon dioxide is left in the gas and ammonia is then washed out as carbonate ; or carbon dioxide may be added after removal of hydrogen sulphide for this purpose. If the gas contains excess carbon dioxide, it is washed to remove ammonium carbonate, and no addition of ammonia is required before the subsequent cool washing with ammonia. The process may be carried out under pressure. Light oils are removed by condensation or by washing with liquid solvents at low temperatures. Specification 370,243 is referred to.
Patent GB-1347169-A (GB)
Title: Concentration measuring apparatus
IPC: G01J4/04
Filed: 1971-05-10
Abstract: 1347169 Photo-electric measurement of concentration YOKOGAWA ELECTRIC WORKS Ltd 10 May 1971 [21 May 1970] 13991/71 Heading G1A [Also in Division G2] The concentration of an optically active substance such as pulp or sugar in a liquid or dispersion is measured by passing polarized light through the sample and detecting the optical activity (rotation of the plane of polarization) using an analyser and a first photo-electric detector and the transmissivity of the sample independent of optical activity using a second photoelectric detector. In the apparatus of Fig. 1, light from lamp 1 is filtered, if necessary, at 2 and collimated by lens 3. A rotatable polarizer or Nicol prism 4 polarizes the light before it passes the sample cell 6. This comprises two spaced plane-parallel plates separated by spacers and provided with grooves 611, 621 on one or both internal surfaces which allow smooth flow conditions since any solid lumps can pass along the grooves and do not clog the test sections 67. The grooved parts are shielded by masks 63 so that only areas 67 of the cell are effective. Device 7 comprises a plurality of tuoular shielding members of circular, rectangular etc. cross-section, and is designed to remove any diffused or scattered light emerging from the cell 6 from the beam to be detected. The detection arrangement comprises an annular photo-cell 9 for detecting light transmitted through the sample in cell 6 and an analyser Nicol prism 8 and photo-cell 10 for detecting light whose plane of polarization has been rotated by the sample. The photo-cells are connected in the differential circuit of Fig.4 so as to measure the ratio of their outputs. The circuit is provided with a motor-driven slider 13 to balance E 1  and E 2 , in which condition the value of R of variable resistor R s  represents the concentration C of optically active material in a liquid independent of colour or turbidity of the liquid. R 1  is for zeroing and R 2  for span adjustment. Calibration of the apparatus can be simply by varying the angle of polarizer 4 (or possibly analyser 8) without using a standardizing liquid. The apparatus of Fig.1 may be associated with a meter operating by scattering and transmission Fig.9 (not shown), in order individually to measure the pulp and clay concentrations in a pulp/clay mixture in a liquid. The further meter operates by using an annular cell to detect scattered light and a central circular one for transmitted light. These signals are combined to provide a ratio representing the sum of the pulp and clay concentrations. By subtracting the signal representing pulp concentration only, from the Fig.1 type meter, the clay concentration is determined. A variety of graphs are provided to explain the operation and use of the apparatus. The diffused light eliminator may be omitted if the detector 10(35) is spaced sufficiently from the cell or the spacing between the two detectors is adjusted correctly.