baber/WOPTO huggingface dataset:
Patent GB-833566-A (GB)
Title: Improvements in or relating to the purification or recovery of diborane
Inventor: MACWCOD GEORGE EUGENE
IPC: C01B6/34
Filed: 1957-03-13
Abstract: Ethane is removed from diborane by contacting with pyridine in excess so as to form a pyridine-diborane complex, removing the ethane and excess pyridine from the complex by fractional distillation, treating the complex with boron trifluoride in excess, preferably via a gas diffuser, so as to form a pyridine-boron trifluoride complex and liberate the diborane as a gas, passing the gaseous diborane through 1,4-dioxane in excess, so as to remove boron trifluoride therefrom by the formation of a 1,4-dioxane-boron trifluoride complex, cooling the still gaseous diborane so as to fractionally condense dioxane therefrom, e.g. by passing through a dry ice trap, and recovering the diborane, e.g. by collecting it as a liquid in a liquid nitrogen trap.  The diborane may be distilled through a one metre packed column to give a product of 99.9% purity.  An example is given (see Group IV (b)).ALSO:A pyridine-diborane complex (m.p. 11 DEG  C.) is produced by introducing diborane containing ethane as impurity into an evacuated reaction vessel containing pyridine in excess, while the vessel is immersed in ice water, at a rate such that the temperature does not exceed 70 DEG  C. during the reaction, cooling to 20 DEG C., and pumping off the ethane impurity together with excess pyridine. A pyridine-boron trifluoride complex is produced by melting the above complex in the reaction vessel, introducing boron trifluoride in excess into the vessel, while the vessel is again immersed in ice water, at a rate such that the temperature does not exceed 70 DEG  C.  When the pressure in the vessel reaches 100-150 p.s.i., the introduction of the boron trifluoride is interrupted and the vessel shaken until the pressure becomes constant.  The liberated diborane is then pumped from the vessel. The process of introducing the boron trifluoride and removing the diborane liberated is then repeated until all the boron trifluoride has been added.
Patent GB-917910-A (GB)
Title: Improvements in or relating to textile bale openers
IPC: D01G7/00
Filed: 1961-03-07
Abstract: 917,910. Opening bales and mixing fibres. MASCHINENFABRIK RIETER A.G. March 7, 1961 [Oct. 31, 1960], No. 8334/61. Classes 120 (1) and 120 (3). Bales of fibres are disintegrated in a machine comprising a plate upon which the bales may be placed for movement around an axis, the plate having a plurality of grids through which rotary shredding elements protrude. A frame 2 is mounted on a plate 1 to be rotatable about a vertical axis extending through the centre of the plate. The frame is divided into cells 3 to accommodate alternately one or two bales. As the frame 2 is rotated, the bales are pushed around the plate 1 by cell walls and pass over radially extending grids 17 through which extend saw-toothed discs 15 of shredding elements 16, so that tufts of fibres fall beneath the plate to be carried away by suction tubes 20. The bales on the plate 1 may be of different raw materials which, it is stated, will be thoroughly mixed.
Patent GB-983320-A (GB)
Title: Improvements relating to connection means for tubular frameworks
Inventor: BOWERS PETER
IPC: E04G7/02
Filed: 1962-03-05
Abstract: 983,320. Furniture joints. DEXION Ltd. Feb. 21, 1963 [March 5, 1962], No. 8421/62. Heading A4W. [Also in Division E1] Tapering spigots 15 of connecting piece 14 are a force fit in plastic sleeves 1 which are thus expanded to grip within metal tubes 10, preferably of square cross-section. The sleeves may be formed as four separate wedges or, the wedges may be joined at their outer ends by flexible bridges, which allow them to be folded into tubular form (Fig. 1 and 2, not shown). The centred block of the connecting piece 14 and the corresponding co-planar spigots 15 are split longitudinally into two halves, each half being die-cast separately in the form of a hollowed-out shell. Five differently shaped halves may be associated with one another in different ways to give all possible combinations of from two to six spigots. Shelf supporting plates (Figs. 4 and 8, not shown) may project from the completed joints.
Patent GB-698285-A (GB)
Title: An improved process for recovering copper and tin from tinned copper
Inventor: HAMILTON GEORGE MONTY
IPC: C01G19/00
Filed: 1951-04-11
Abstract: Copper and tin are separated in a process in which tinned copper is treated with an acid solution of copper sulphate, such as spent pickling liquor, under such conditions that all or substantially all of the tin associated with the copper replaces copper in the copper sulphate solution, while the copper is precipitated as metal.  The tin may be recovered from the solution as hydroxide by oxidation with atmospheric oxygen, preferably by spraying through air, and the process may be a cyclic one in which acid copper sulphate is circulated through a batch of tinned copper, a source of copper such as copper scale (to replenish the copper sulphate), atmospheric oxygen (as a spray) and a filtering arrangement for removing tin hydroxide.
Patent GB-407199-A (GB)
Title: Improved control device for railway signals, points and the like
IPC: B61L7/06
Filed: 1933-03-20
Abstract: 407,199. Control of A.C. motors. PACILLI, E., 57, Via Pisacane, Milan, Italy. March 20, 1933, No. 8434. Drawings to Specification. [Class 38 (iii).] The torque of a three-phase A.C. motor is reduced when necessary by introducing directcurrent into the field winding.
Patent GB-1163870-A (GB)
Title: Anti-Seborrhocic Compositions Suitable for Oral Administration
Inventor: KALOPISSIS GREGOIRE
IPC: A61K8/46
Filed: 1968-02-21
Abstract: 1,163,870. Anti-seborrhoeic compositions. L'OREAL. 21 Feb., 1968 [21 Feb., 1967], No. 8492/68. Addition to 1,051,870. Heading A5B. Anti-seborrhoeic compositions comprise as active ingredient a compound of the general formula R-S-CH 2 -CH(NHR<SP>11</SP>)COOR<SP>1</SP> where R is triphenylmethyl, diphenylmethyl, benzyl or R<SP>1</SP>OOC-(CH 2 ) n . R<SP>1</SP> is H or C 1 -C 6  alkyl, n is 1-4 and R<SP>11</SP> is H or -COR or SO 2 R where R is C 1 -C 6  alkyl or aryl, or a non-toxic acid addition salt thereof together with a) a solid ingestible excipient, (b) an edible syrup or (c) a flavouring agent, or (d) in an ingestible capsule.
Patent GB-1507402-A (GB)
Title: Viscometers and methods of measuring viscosity
IPC: G01N11/04
Filed: 1976-03-03
Abstract: 1507402 Viscometers SOC DE LA RAFFINERIE DE LORRAINE 3 March 1976 [5 March 1975] 8510/76 Heading G1S [Also in Division F2]  A needle 19, Fig. 4, which may be reciprocated in a capillary tube of a viscometer to clean its bore, is attached to a rod 22 and piston 31, compressed air being supplied alternately to ducts 34, 35. The whole needle apparatus is mounted on the top 23 of a heated oil bath and a special sealing arrangement 38 is provided (see also Division F2). In Fig. 3 (not shown) the needle is replaced by a rod having a small brush (20) at its end. The viscometer capillary tube 4, Fig. 1, is supplied from a pipe 1 through a filter 2 and is immersed in oil 10 heated by a coil 8 and circulated by a paddle 9, the capillary having its pressure drop measured by members 3, 5 connected to recording apparatus 11. A thermometer 6 is also provided. In Fig. 2 (not shown) a needle (19) is provided above the capillary tube 4 so that it may be guided by a P.T.F.E. joint (18) into the tube.
Patent GB-290413-A (GB)
Title: Improvements relating to automatic lubrication of internal combustion engines
IPC: F01M9/06
Filed: 1927-03-29
Abstract: 290,413. Stevens & Co. (1914), Ltd., A. J., Stevens, H., and Stevens, A. J. March 29, 1927. Channels and reservoirs in engine crank-casings. -Oil is ejected from the crank case 1 of an internal-combustion engine through a transverse opening 2, formed in the bottom of the crank case and extendng from the centre in the direction of the enclosed flywheel, into a sump 3, the oil being thrown tangentially from the bottom of the flywheel. The forward edge of the opening 2 has an inclined wall 4, the lower edge 5 of which is slightly above the bottom of the crank case. An opening 6 in the forward end of the sump is fitted with a pipe connected to a pump supplying the engine parts, whence it returns to the crank case, the arrangement being such that the natural flow of the oil is towards the pipe. The opening 6 is fitted with a cylindrical gauze 7.
Patent GB-435552-A (GB)
Title: Improvements in and relating to high speed steel
IPC: C22C38/12
Filed: 1934-03-19
Abstract: Great hardness is produced in high-speed steels containing in addition to iron, 0,1-3,0 per cent of beryllium, 0,2-2,5 of carbon, 12-25 of tungsten, 0-17,5 of molybdenum and 0-7,5 of vanadium by quenching from 1100-1350 DEG  C. and then ageing or annealing at 400-700 DEG  C.  The steels may also contain about 3-5 per cent of chromium and about 3-15 of cobalt.  In an example, a high speed steel containing 18 per cent of tungsten, 4 of chromium, 0,8 of carbon, 0,2 of manganese, 0,2 of silicon and 0.6 of beryllium is quenched in oil from 1320 DEG  C. and annealed at 500 DEG  C. for an hour.
Patent GB-165224-A (GB)
Title: Improvements in regenerative counterpropellers for marine and aerial vessels
IPC: B63H25/38
Filed: 1920-03-24
Abstract: 165,224. Birkett, R. W. March 24, 1920. Screw propellers; rudders.-Relates to counterpropellers and consists in using a stationary propeller of less diameter than and situated at a distance aft of the main propeller. The stationary propeller may be mounted on the rudder post for steering. On the rudder post 2 is mounted a shaft 3 which carries stationary radial blades 5 and has a footstep bearing 6. The diameter of the propeller is from two-thirds to three-quarters that of the main propeller 1 and the space 2a which varies from 5 to 40 per cent of the pitch of the propeller 1. The shaft may be provided with a tiller and be turned for producing a steering effect. Specification 135,374 is referred to.
Patent GB-254242-A (GB)
Title: Improvements in or relating to pyrophoric pocket lighters
IPC: F23Q2/06
Filed: 1926-03-31
Abstract: 254,242. Silberknopf, H. July 9, 1925, [Convention date]. Extinguishing wick burners; flame protectors. - In a pocket igniter, an extinguishing cap 5 is provided with arms 7, pivoted to a wind-screen 4, mounted slidably on the petrol container 1, and connected by a pivoted bracket 8 to a fixed rod 9 so that, when the screen 4 is raised into the operative position, the cap 5 is automatically lifted off, and then rotated away from the wickburner 6. The lower end 11 of the rod 9 is secured to the bottom of the container 1 by a collar 12 on the screw-plug 13 of the filling aperture. The screen 4 is formed with recesses 10 to facilitate operation.
Patent GB-622984-A (GB)
Title: Improvements in or relating to socket elements for electrical plug and socket connecting devices
IPC: H01R33/76
Filed: 1947-04-01
Abstract: 622,984. Holders for discharge tubes. BRITISH MECHANICAL PRODUCTIONS Ltd., and DEAKIN, S. T. April 1, 1947, No. 8805. [Class 38 (i)] In a valve-holder 1 having contacts 6 of the rectangular construction described in Specification 618,677, and which holder may be furnished with a skirt with a detent latch of the kind described in Specification 613,634, the spigot socket 7 comprises a split tube provided opposite the division formed by the tube abutting edges with a division 12 adjacent to which are internal protuberances 14 which are engaged by the spigot to deform the socket, and thereby enhance its contact. A bulge 9 on the tube receives the spigot locating key. The socket is positioned in the body by projecting tongues 10 and rivets 17, the socket entrance being formed with a flange 15. In a modification for wafer valve-holders, Fig. 7 (not shown), the socket 25 is slightly tapered and formed from a blank, Fig. 12 (not shown), and has protuberances 28, 29 at the division slightly out of alignment so as to accommodate inaccuracies in the position of a retaining groove on the valve spigot. A rib 26 is provided on the socket to secure it in the holder the socket entrance being flanged to clamp the holder parts together. Specifications 381,393, 400,509 and 404,505 also are referred to.
Patent GB-1523193-A (GB)
Title: Coal oil mixtures
IPC: C10L1/32
Filed: 1976-03-05
Abstract: 1523193 Preparing coal/oil dispersions BRITISH PETROLEUM CO Ltd 25 Feb 1977 [5 March 1976] 08880/76 Heading C5G A uniform coal/oil dispersion is prepared by grinding coal in a medium consisting essentially of gas oil and/or a heavier petroleum fraction until the particle size is reduced to below 10 microns and the dispersion contains 15 to 55% by weight coal and until a stable dispersion results on ceasing grinding. The petroleum fraction may be fuel oil or diesel oil.
Patent GB-268803-A (GB)
Title: Bottle closures
IPC: B65D41/14
Filed: 1927-03-31
Abstract: 268,803. M³ller, P., and Rahlwes, K. March 31, 1926, [Convention date]. Capsules; capsules, making.-A bottle &c. is capsuled by a single metal-foil band of rectangular shape located over the bottle mouth, the remaining parts being applied to the bottle neck. Incisions are made in the strip to produce two flaps b which are first folded down on the bottle neck and two flaps a which are then folded down to complete the capsule. In a modification, the incisions are replaced by cut out pieces. In another form, a plain strip is used, the parts which have to be folded on each other being provided with adhesive to retain them in the folded position.
Patent GB-577563-A (GB)
Title: Improvements in the means for and method of manufacturing springs
IPC: B21F3/06
Filed: 1943-06-03
Abstract: 577,563. Coiling. RHODES, Ltd., W., and BINCH, A. H. June 3, 1943, No. 8945. [Class 83 (iv)] In a machine for producing cylindrical or flattened helical wire springs suitable for chairs, mattresses, &c. or as ejector springs in small arms magazines, the wire W is fed continuously through tensioning and straightening devices 10 by feed rollers 11, 12 and through a tapered bore 13 in a head 14 towards an anvil 15, which is pivoted at 25 and is moved up and down substantially normally to the direction of feed by cam means 20, 21 so that while the anvil is in the raised position the wire passes it to form the flat part of the helix. The pitch of the helix is produced by an adjustable ramp 16 at the side of the anvil. The grip of the feed rollers may be adjusted by a hand screw 36 acting through rubber discs 37, and the anvil, which may have a renewable grooved bearing block 115, may be adjusted by screws 26, 27.
Patent GB-967090-A (GB)
Title: Rotary piston type compound internal combustion engines
IPC: F02B53/00
Filed: 1962-03-08
Abstract: 967,090. Rotary piston internal combustion engines. YANMAR DIESEL ENGINE CO. Ltd. March 8, 1962 [March 10, 1961], No. 8956/62. Heading F1F. A rotary piston I.C. engine of the n and n+1 lobe type comprising similar power and compressor units having casings whose inner peripheries are of multi-lobed epitrochoidal profile and in each of which planetary rotates a rotor mounted eccentrically on a common shaft wherein the gases of combustion from the power unit are transferred to the compressor unit to expand in the working chambers thereof and so increase engine torque. Power unit and compressor casings 1, 2, Fig. 1, having two-lobed epitrochoidal profiles each accommodate a rotor 3, 4 angularly disposed at 90 degrees with respect to each other on a common shaft 5 and eccentrically rotating in sliding engagement with their respective casings. The casing 1 includes an inlet port 10, Fig. 2, an outlet port 11 and a fuel-injection valve 16 whilst casing 2 includes an air inlet port 12, Fig. 3, a cold air transfer port 14, a hot gas transfer port 15 and an exhaust port 13. Internal gears 8, 9 fixed to the respective rotors mesh with pinions 6, 7 fixed to the casing so that the rotors rotate in the same direction as the shaft 5 in the speed ratio of 3:1. On rotation of the shaft 5 air drawn in through the port 12 into the chamber V<SP>1</SP>, Fig. 4, in the casing 2 is first compressed and then transferred through ports 14, 10 into the casing 1 where it is further compressed and mixed with fuel injected through the valve 16 and ignited to carry out the usual four-stroke cycle. The spent gases of combustion are then transferred through ports 11, 15 to the casing 2 to further expand to rotate the rotor 4 to increase the torque on the engine shaft 5.
Patent GB-1246614-A (GB)
Title: Improvements in or relating to the manufacture of ceramic ware
Inventor: BRADSHAW ARTHUR
IPC: B28B5/02
Filed: 1967-10-31
Abstract: 1,246,614. Moulding clay pieces. SERVICE (ENGS.) Ltd. 30 Oct., 1968 [31 Oct., 1967], No. 9025/71. Divided out of 1,246,613. Heading B5A. The subject-matter of this Specification is identical with that described in Specifications 1,246,613 and 1,246,615, but the claims are concerned with the method of shaping the clay pieces.
Patent GB-872857-A (GB)
Title: Method for producing sodium borate of lowered iron content
IPC: C01B35/12
Filed: 1960-03-15
Abstract: The iron content of sodium borate contaminated with iron is lowered by adding ferric hydroxide to a solution of the sodium borate, allowing the ferric hydroxide to settle whereby the iron is carried down with it, filtering, and crystallizing sodium borate from the solution.  The ferric hydroxide is prepared by adding NaOH, LiOH, KOH or NH4OH, to a solution or slurry of a ferric salt, e.g. ferric sulphate, in water until a pH of 9 or higher is reached, and the resulting slurry of ferric hydroxide is added to the sodium borate solution.  The sodium borate solution may be obtained by leaching a sodium borate ore with water or with a sodium borate mother liquor, and the ferric hydroxide may be added before or after gargue is removed.
Patent GB-473542-A (GB)
Title: Improvements relating to prepayment meters
IPC: G07F15/08
Filed: 1937-03-20
Abstract: 473,542. Prepayment mechanism for meters. CHAMBERLAIN & HOOEHAM, Ltd., and JAMES, S., March 20, 1937, No. 9130/36. [Class 27] Price-changing mechanism.-In a prepayment meter having means for automatically changing the commodity price as between peak and offpeak hours, the meter mechanism drives a shaft c to which is secured the carrier of a planet pinion h. meshing with loose sun pinions f and g. The sun pinions are connected by intermeshing gears a, k and b, l respectively, of different ratio with driving pawls o and p engaging pinions n fast on a shaft ,j connected with the quantity mechanism, the gears k and l being loose on this shaft. During peak hours, a slidable locking member d is held in the fullline position shown, against the action of a spring s, by energization of an electromagnet r and locks the gear b so that the drive is transmitted from the meter mechanism to the quantity mechanism at a higher rate through the parts h, f, a, k, o and m. During off-peak hours, the electromagnet r is de-energized, and the locking member d displaced by the spring s to free the gear b and look the gear a, the drive then being at a lower rate by way of the parts h, g, b, l, p and n. The circuit of the electromagnet r is controlled by means of a time switch. In an alternative arrangement the electromagnet is dispensed with, and a spring- driven clock or a synchronous motor adapted to operate the locking member d mechanically.
Patent GB-1506905-A (GB)
Title: Gas-discharge display device and system
IPC: H01J11/24
Filed: 1975-03-05
Abstract: 1506905 Alpha-numeric displays and circuitry therefor NIPPON ELECTRIC CO Ltd 5 March 1975 [5 March 1974] 9171/75 Heading G5C [Also in Division H1] A gas discharge display panel has an array of display discharge cells 42 defined by electrodes connected in groups by lines 43, 44, the groups of electrodes connected by lines 43 being connected to control discharge cells 41 which are connected in parallel with the groups of display cells when transistors 48 and 49 are on. A power supply 47 causes a discharge in control cells 41 in preference to display cells 42 which can only be ignited when the associated control cell is extinguished by turning off the relevant transistor 49. Power supply 38 and diodes 40 protect the transistors from induced high voltages when they are off; this can alternatively be done using a Zener diode, Fig. 7 (not shown). Fig. 8 (not shown) illustrates an arrangement in which the control cells are turned on and off to provide scanning over an x-y display.
Patent GB-419582-A (GB)
Title: Paper-making
IPC: D21H17/67
Filed: 1934-03-23
Abstract: 419,582. Paper containing zinc sulphide pigment. NEW JERSEY ZINC CO., 160, Front Street, New York, U.S.A.- (Assignees of Cyr, H. M. ; Palmerton, Pennsylvania, U.S.A.) March 23, 1934, No. 9205. Convention date, April 17, 1933. [Class 96.] Zinc sulphide pigment e.g. as lithopone, mixtures of zinc sulphide with calcium sulphate or an alkaline earth carbonate, is added to paper pulp e.g. 1-10 per cent of pigment on the weight of the fibre, whilst maintaining the pH value of the pulp liquid not lower than 4À5, and preferably above 5 for such time as the pigment remains in contact therewith, the pulp being formed into a web as promptly as practicable. The process is stated to prevent staining of the paper or decrease it to unobjectionable amounts, the paper retaining its opacity when oiled, waxed &c. In an example, the beater &c. is flushed with water or an alkaline solution to remove any soluble copper compounds, pulp is then sized therein with the addition of alum &c. added to establish a pH value not lower than 4À5 ; zinc sulphide is added to the pulp just before its removal from the beater, and the pulp diluted to pH=5À0. The Fourdrinier or other paper-making machine is preferably also flushed prior to use.
Patent GB-1477103-A (GB)
Title: Solar energy water heater
IPC: F24S10/70
Filed: 1975-03-06
Abstract: 1477103 Solar heating F W MCCORD 16 Dec 1975 [6 March 1975] 9238/75 Heading F4U [Also in Division E1] A solar heater comprises two superposed sheets 10 formed wholly or substantially of flexible plastics material, or a single sheet folded to form two superposed sheets, the sheets being secured together, e.g. by welding, around their periphery 11 and along parallel lines 12 to form between the sheets interconnected channels 13 for receiving water to be heated. The heater is provided with a single combined inlet and outlet 18. An upper edge region of the sheets may have eyelets whereby the heater may be suspended on an inclined support frame, Fig. 3 (not shown). The plastics material preferably has a matt black external finish, and a sheet of thermal insulation material may be provided on the outside of the sheet 10 which faces away from the sun. One of the sheets may have a metal coating or may have metallic particles incorporated in the plastics material. A metal plate may be incorporated in one sheet. The heater may be incorporated in a wall of a tent.