baber/WOPTO huggingface dataset:
Patent GB-896306-A (GB)
Title: A process for improving the thermal oxidative degradation and simultaneous purification of linear polyolefines
Inventor: HELMS ALFRED
Filed: 1960-11-02
Abstract: In an improvement in the process of the parent Specification for the thermal oxidative degradation and simultaneous purification of linear polyolefins prepared by polymerization of olefins containing 2 to 4 carbon atoms with catalysts containing heavy metals of Group IVa, Va or VIa of the Mendeleeff Periodic Table and which contain small amounts of these catalysts, which comprises dissolving the polyolefin in an inert organic solvent and heating the solution in the presence of oxygen or oxygen supplying compounds for 15 to 200 minutes at 70 DEG  to 240 DEG C., the solution of the polyolefin is prepared from a suspension of the polyolefin in the solvent by leading in superheated steam.  The superheated steam may be under a pressure of 5 to 100 atmospheres, and basic compounds such as ammonia or alkylamines, air or oxygen may be metered into the steam.  In an example a solution of polypropylene is prepared from a suspension thereof in heptane by leading in steam at 14 atmospheres into which ammonia and air have been metered.
Patent GB-801079-A (GB)
Title: Improvements in or relating to electrical storage batteries
Inventor: CHAPMAN EDWARD SPENCE
IPC: H01M50/529
Filed: 1954-12-31
Abstract: 801,079. Batteries. PRITCHETT & GOLD & E.P.S. CO., Ltd. Dec. 9, 1955 [Dec. 31, 1954], No. 37767/54. Class 53. In a storage battery having a monobloc container the partitions a between the cells include detachable top panels f through which the intercell connectors e pass. Each panel f is moulded about the intercell connector and is formed to fit within U-shaped grooves in the partitions a. Side plates #<SP>1</SP>, #<SP>2</SP> which overlap the edges of the groove are also formed on the panel. The connector h to the terminal g also passes through a detachable panel i in the container end. The panels are preferably of polystyrene and cemented in position. Specification 662,604 is referred to.
Patent GB-1117539-A (GB)
Title: Railway bogie
Inventor: JONES WILLIAM CLIFFORD
IPC: B61F5/14
Filed: 1966-08-24
Abstract: 1,117,539. Railway vehicle undercarriages. GENERAL STEEL INDUSTRIES, Inc. 24 Aug., 1966, No. 38055/66. Heading B7L. A railway bogie particularly for a diesel hydraulic locomotive comprises axles 3, 5, 7, Fig. 1, and wheels 1; a frame, supported therefrom via axle-boxes and drop equalizers, and including side members 13 and transoms 15, 17, respectively between the axles 3, 5 and 5, 7; and a bolster 35, 35, 37, 37 positioned between the side members and transoms, supported at each of its four corners from the frame on a spring 43; and each corner having an upwardly facing cup-like pad 55 provided with a horizontal bearing surface and each pad 55 having an arcuate upright wall 59 curved about a vertical axis at the centre of the bolster, the walls 59 being engageable with cooperating vertical surfaces of arcuate shoes 65 on feet (63), Figs. 7 and 8 (not shown), depending from a locomotive frame (L), supportable by the bogie. The bolster comprises an open frame having side members 37 and end members 35 the latter being depressed between their ends. The transoms 15 and 17 are also depressed between their ends e.g. as at 21, the depressions permitting passage, over the members 35 and the transoms, of cardan shafts C 1 , C 2 , C 3  connecting axle gear-boxes G 1 , G 2 , G 3  to the locomotive transmission as described with reference to Fig. 2. The corners of the bolster in the form of extensions of the end members 35 are disposed between the transoms 15 or 17 and brackets 25 extending inwardly from the side members 13, the supporting springs 43 being carried by cranked spring planks 33 supported from pairs of swing hangers 29 pivoted to the transoms and brackets. The members 37 of the bolster are formed with upright arcuate surfaces 71 curved about the centre of the bolster and co-operating with arcuate surfaces on depending members 69 of the locomotive. The bogie frame side members 13 are supported from the equalizers 11, Fig. 2, by springs 19. The shoes 65 have wear surfaces co-operating with wear surfaces on the walls 59, and are pivotal on the locomotive frame feet (63). The bolster end members have vertical wear plates 45 co-operating with vertical wear plates 47 on the transoms 15, 17.
Patent GB-632672-A (GB)
Title: Pure autolytic tuberculin and preparation thereof
IPC: A61K39/04
Filed: 1946-12-30
Abstract: A stable, bacteriologically pure, undenatured, transdermally effective tuberculin is prepared by growing tubercle bacilli on a non-protein medium for one month and in any case not more than 5 or 6 weeks, to produce viable tubercle bacilli substantially free from metabolic constituents, separating the bacilliary mass, e.g., by filtration or centrifugation, washing to remove water-soluble constituents, mixing the mass so obtained with buffered water of p-H7 adding up to 5 per cent of a growth-arresting substance, which does not prevent autolysis, and incubating this aqueous mixture at 37 DEG C for one week.  The autolyzed mixture is then filtered, e.g., through ultra filter membrane and the cell free filtrate concentrated by low temperature vacuum distillation and finally dried, e.g., over P2O5 in a vacuum dessicator. Tuberculin may be further purified by precipitation from aqueous solution with trichloracetic acid.  The growth-arresting substance is an inert organic fat solvent such as benzene, petroleum ether, xylene, trichloro-ethylene, bromobenzene, carbon disulphide, amyl alcohol, benzyl alcohol, ethyl ether, carbon tetrachloride, or toluene, which is preferred.  A preferred non-protein medium is the Wong-Weinzirl medium containing malic acid, ammonium hydroxide, ammonium citrate, monopotassium acid phosphate, sodium carbonate, sodium chloride, magnesium sulphate, ferric ammonium citrate, glycerol and glucose in sterile aqueous solution.
Patent GB-1158637-A (GB)
Title: Improvements in or relating to Processes involving the Pyrolytic Deposition of Carbon or other Substances from a Gas or Vapour
Inventor: MAYR KURT AUGUST MANFRED
IPC: C04B41/50
Filed: 1966-08-25
Abstract: 1,158,637. Pyrolytic deposition of carbon. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 15 Aug., 1967 [25 Aug., 1966], No. 38264/66. Heading C1A. [Also in Division G6] In a high temperature process for the pyrolytic deposition of carbon or a carbon-containing substance from the gas phase, said gas being introduced into the apparatus through an injection orifice, an agent is introduced into the apparatus to initiate an exothermic reaction additional to and compatible with the pyrolytic deposition reaction. The agent is preferably an oxidizing agent, e.g. CO 2 , air, oxygen, water vapour, and may be introduced into the apparatus either with the pyrolysis gas or elsewhere. Examples describe the deposition of carbon from methane or methane/ argon at 1800 to 2300‹ C. on to fluidized beds of refractory oxide (e.g. ThO 2 /UO 2 ) or carbide particles. Tumbling furnaces may also be used.
Patent GB-909953-A (GB)
Title: Hydraulic selector valve
IPC: F16H59/04
Filed: 1958-12-08
Abstract: 909,953. Valves. BORG-WARNER CORPORATION. Dec. 8, 1958 [Dec. 17,1957], No. 38398/61. Divided out of 909,952. Class 135. A selector valve comprises a casing 18 having a shaft 44 provided with a bore 62 forming the inlet to the casing. A valve member 58 is fixed to the shaft and provided with a passageway 60, 66 such that on rotation of the shaft, the inlet is connected to one of several outlets such as 32. The casing is provided with a connection 96 for connection to a fluid supply which maintains a predetermined pressure in the casing, lower than the inlet pressure, and hence in the outlets not connected to the inlet. Recesses 94 are provided for engagement by a spring-loaded ball 90 to locate the valve member for each outlet. A sealing member 70 is provided, loaded by a spring 82 and by fluid pressure into engagement with the casing.
Patent GB-1035769-A (GB)
Title: Fluid bistable flip-flop
IPC: F15C1/10
Filed: 1964-09-21
Abstract: 1,035,769. Fluid switches. SPERRY RAND CORPORATION. Sept.21, 1964 [Oct. 1,1963], No. 38441/64. Heading G3H. [Also in Division G4] An amplifying NOR circuit for use in a fluid bi-stable storage device,Division G4,is described. A power stream input channel 3, first and second output channels 5, 7 and control signal input channels 9,11 are formed in a body 21. In the absence of a control jet the power stream flows into the channel 7 as the dividing element 27 has its tip to the right of the power stream. A signal applied to either control channel 9 or 11 will direct the power stream into the output channel 5, but it will return to the channel 7 immediately any control signals are removed. The wall 29 is shaped to improve the switching characteristics and a channel 31 prevents switching when the circuit is back-loaded.
Patent GB-850281-A (GB)
Title: Polymers having mordant properties and photographic materials containing them
IPC: C08F8/32
Filed: 1956-12-18
Abstract: Polymers of acrolein, methacrolein and vinyl alkyl ketones in which the alkyl group has 1 to 4 carbon atoms, or copolymers thereof with styrene and alkyl methacrylates in which the alkyl group has 1 to 4 carbon atoms, are condensed with aminoguanidine or salts thereof, e.g. the bicarbonate, acetate and butyrate.  The condensation may be effected at subatmospheric, atmospheric or superatmospheric pressures in inert media, e.g. 1,4-dioxane, glacial acetic acid or mixtures thereof, isopropyl alcohol and isopropyl alcohol-water mixtures, and the products decolourized with reducing agents, e.g. sodium and potassium bisulphites and metabisulphites, sulphur dioxide, sodium and potassium dithionites and metallic zinc and acetic acid.  The polymers may be prepared by polymerization in bulk or solution, e.g. in dioxane and isopropyl alcohol, in the presence of catalysts, e.g. benzoyl peroxide.  The polymers may be used as mordants in photographic processes in and for over-coating gelatino-silver halide emulsion layers, and in imbibition and dye transfer blanks. Specifications 522,997, 654,266, 796,401 and U.S.A. Specification 2,739,137 are referred to.ALSO:Propionyl chloride is added dropwise to a cooled suspension of aluminium chloride in methylene chloride and gaseous ethylene passed through the cooled, stirred mixture which is worked up to recover 1-chloro-pentanone-3.  A mixture of 1-chloropentanone-3 and N, N-diethyl-aniline is heated rapidly and the product which distils during the vigorous reaction is fractionated twice to recover vinyl ethyl ketone.  Specifications 522,997, 654,266, 796,401 and U.S.A. Specification 2,739,139 are referred to.
Patent GB-854088-A (GB)
Title: A method and an apparatus to transfer viscous material, especially sausage meat, into receptacles, as for instance, sausage skins
IPC: A22C11/08
Filed: 1956-12-19
Abstract: 854,088. Filling machine for sausages &c. VEMAG VERDENER MASCHINEN-UND APPARATEBAU ZWEIGNIED-ERLASSUNG DER SUDOSTHOLZ G. m. b. H., METZ & CO. Dec. 19, 1956 [May 2, 1956]. No. 38620/56. Class 28 (2). [Also in Group XXX]. Sausage meat &c. in a hopper 3 is moved forward by a pair of intermeshing worm conveyors 13, 14, which fill up a measured space 18 with the meat, the space 18 being temporarily closed by a sliding shutter 27 in front of a sausage filling nozzle 29. Further feed of the meat causes the meat pressure to fill up the cylinder 15 and so force back the worms 13, 14, to the right until a stop 49 engages the switch 50 of the motor 48 to stop the rotation of the worms 13, 14. A pedal is then operated to open the slide 27 whereby oil pressure in cylinder 40 moves the worm 13, 14 to the left to eject the fixed meat volume in 18 through the nozzle 29 into a sausage skin. When this happens the stop 49 is now disengaged from switch 50 to restart the motor 48 and resume the rotation of the worms 13, 14 and the slide shutter 27 is moved up by oil pressure to close the space 18. An abutment 59 on the shutter rod then operates a switch 58 to restart the motor driving the oil pump 52. The machine may also be used for continuous sausage filling the shutter 27 being kept open. The machine may have ducts 16 for cooling or heating liquid. The hopper 3 is provided with a rotated feed worm 8 on its inner periphery to push the meat down but leaving a clear space in the middle so that excess meat can rise up through the middle. The worm 8 is lubricated by water or oil from nozzles 9. The intermeshing conveyer worms 13, 14 are narrow at their ends 17 over the length a Fig. 2, then gradually become wider along their length b and finally at c they are wide enough to leave practically no space between them so that they can act as a piston. At the length b where some meat pressure has been built up, entrapped air is expelled through vent holes 24 into a vent chamber 25 which may also receive some excess meat to be forced back through channels 26 into the main hopper 3. Suction may be applied to the vent holes 24. The worms 13 and 14 are each rotated by the planet gears of an internal toothed ring 37 of a splined shaft 35 driven by V-belt 46 from the motor 48. When the worms, 13 and 14 are pressed back by meat pressure as above the shaft 35 also moves back to the right through its drive pulley 45. The housing 32 in cylinder 40 is also pressed back by the heads 30, 31 of the worm cores so that the stop 49 on 32 moves towards stop switch 30 for the motor 48. The piston 39 fixed to a sleeve 35 is also pressed back to force the oil back through pipes 44, 54 and valve 57 to the reservoir 51. Hand adjustment of the valve 57 determines how much oil is pushed out of the cylinder 40 by the piston 39 and so determines the length of the next stroke and thus determines the size of each portion of meat.
Patent GB-866800-A (GB)
Title: Improvements in and relating to means for suspending and drawing curtains or the like
IPC: A47H1/124
Filed: 1959-11-16
Abstract: 866,800. Curtain supports. JOHANSSON, G. G. Nov. 16, 1959 [Dec. 27, 1958], No. 38702/59 Class 52(5). A curtain board has a pelmet part 3, longitudinal grooves 4 for curtain runners and, between them, an upwardly-open undercut groove 6 receiving the head 7 of a bolt 9 taking through a slot 12 in the support bracket 11, the board being secured by a nut 10 after appropriate adjustment of the bolt 9 longitudinally in the slot 12 and groove 6. The bolt head 7, if round, is inserted from the end of groove 6 but, if elliptical, is inserted through the opening of the groove and then rotated to be retained therein. As shown the board is a metal profile.
Patent GB-1415768-A (GB)
Title: Semi-permeable membranes
IPC: B01D71/40
Filed: 1973-08-16
Abstract: 1415768 Porous polymethylmethacrylate membrane TORAY INDUSTRIES Inc 16 Aug 1973 [16 Aug 1972 17 Feb 1973] 38720/73 Heading B5B [Also in Division C3] Hydrogel semi-permeable films and fibres are prepared from a mixture of isotactic and syndiotactic polymethylmethacrylates. The structures are prepared by dissolving the mixture in a suitable solvent to form a sol, forming the sol into the desired shape, cooling it to form a gel and then replacing the solvent with water. Hollow fibres may be given by extruding through an annular orifice having an inner tube coaxial with the orifice by which a fluid is injected into the fibre. The fibre is then cooled to below the melting point of the gel by contact with a cooling gas, which is preferably the vapour of a coagulating liquid, and then coagulating the fibre by means of an aqueous non-solvent.
Patent GB-1202603-A (GB)
Title: Time delay control circuit
Inventor: GRAF CARLTON EUGENE
IPC: H03K17/292
Filed: 1967-08-23
Abstract: 1,202,603. Converting. GENERAL ELECTRIC CO. 23 Aug., 1967 [30 Sept., 19661, No. 38786/67. Heading H2F. [Also in Division H3] A timing circuit connected between emitter and base of a unijunction transistor comprises, in series, a capacitor and a variable platform voltage source which does not charge the capacitor whereby the delay before charging of the capacitor causes the transistor to fire depends upon the platform height. With this arrangement the timing may be immediately responsive to variation of the platform height. As shown in Fig. 2, the variable platform source 38 is connected in series with the timing capacitor 34 which is charged through resistor 46 or a constant current source. When the combined voltage is sufficient the unijunction transistor conducts, firing a thyristor 18 and also discharging capacitor 34 through diode 50. The pulses repeat at a rate depending upon the platform voltage. Diode 48 isolates the platform voltage source from the discharge current path and a clamp 44 for the source is also provided. The discharge current of capacitor 34 is supplemented by current from an additional capacitor 52 to ensure firing of the thyristor. The voltage across the additional capacitor follows a little behind the timing capacitor voltage due to the action of the emitter follower 60 and is isolated from the emitter of the unijunction transistor by a diode 58 until discharge has been initiated by the voltage across 34. In Fig. 1 (not shown), the additional capacitor 52 is charged at the beginning of the timing period to a fixed voltage determined by a Zener diode (56) and does not follow the timing capacitor voltage. In Fig. 3, variations in the timing period with the breakdown voltage level of the unijunction transistor are avoided by comparing a reference voltage 80 in the emitter circuit of a transistor 60 with the combined timing and platform voltage applied to the base. When the latter reaches a value such that the transistor 60 conducts the potential of the base of the unijunction transistor is thereby lowered and discharge through the emitter of the unijunction transistor is initiated. The thyristors are connected between a three-phase supply 70 and load terminals such as 75, 77. The circuit may be used in a tetroactive control system.
Patent GB-1165822-A (GB)
Title: Improvements in or relating to Keyboards for Power-Operated Typewriters and the like
IPC: B41J5/08
Filed: 1967-08-24
Abstract: 1,165,822. Typewriters, &c. SIEMENS A.G. 24 Aug., 1967 [25 Aug., 1966], No. 39011/67. Heading B6F. In a power-operated typewriter or like machine, wherein depression of a key 1 causes movement of an associated selector rod 4 into engagement with a drive means 11 which, when operated, pushes the rod 4 rightwardly so that code teeth 14 thereon actuate selected rockers 13 to produce binary signals, a pawl 7 is provided which locks a rod 4 in depressed position, and movement of the pawl 7 to locking position operates a rocker 10 to trip the drive means 11. As shown, the key 1 is depressed against the action of a return spring 2 connected to an intermediate member 3 which, through projections 21, 22, moves its rod 4 downwardly about a pivot 19. During such movement, the tip 6 of a pawl 7, normally engaging a projection 20 on the rod 4, slides on to an edge 8 on the rod 4 to hold the rod in depressed position with a lug 12 on the rod adjacent to a three-armed drive shaft 11. Movement of the pawl 7 under the action of a spring 9 operates a rocker 10 which through a clutch, causes the shaft 11 to rotate through 120 degrees so as to push the rod 4 rightwardly to actuate the selected rockers 13. Over-centre springs 23 complete the movement of the rockers 13 to set position. As the rod 4 moves rightwardly, a part 15 thereon engages a lug 16 on the pawl 7 to pivot the pawl so that the tip 6 is moved out of engagement with the edge 8 allowing the rod 4 to rise under the action of a spring 18 to its normal position where the tip 6 engages projection 20. Fixed to the shaft of each rocker 13 is a lever 24, Fig. 2, carrying a permanent magnet 30 which operates a sealed-tube magnetic contact 31 to provide the signal. The lower end of each lever 24 carries a pin 25 which, when the corresponding rocker 13 is set, moves into the path of a shoulder 26 on a rod 27. The rod 27 is operated from a cam 28 on the drive shaft to move all the displaced rockers 13 back to their original positions. Repeat action, preventing.-If the key 1 has remained depressed, the projection 21 on the rod 4 will be out of alignment with the projection 22 on the intermediate member 3 when the rod 4 makes its return movement so that the rod 4 can rise and a repeat operation is prevented. A ball-lock 5 prevents more than one selector rod 4 being moved into depressed position at the same time.
Patent GB-1045029-A (GB)
Title: Improvements in sanitary or other pipe joints
IPC: F16L47/24
Filed: 1964-09-24
Abstract: 1,045,029. Pipe joints. G. HARRISON. Sept. 10, 1965 [Sept. 24, 1964], No. 39018/64. Heading F2G. A pipe joint consists of a length of pipe 3 of relatively flexible material into one end of which a length of pipe 5 of relatively rigid material fits spigotwise, and a gasket-type joint between one of the pipes 1 and 7 to be joined and the second length of pipe. The pipe 1 is the spigot outlet of a W.C. pan and 7 is the enlarged end of a soil-pipe to which the said spigot is to be attached. The gasket (not shown) is located in a groove 8 in the pipe 7 to seal the joint between pipes 7 and 5 as described in Specification 1,038,055. The flexible pipe length 3 is welded, cemented, or otherwise attached to the second length 5 and has an internal rib 3B against one side of which the end of the soil-pipe abuts and against the other side of which the pipe 5 abuts. External clips (not shown) may be used to tighten the part 3 on to the pipe 1.
Patent GB-1473058-A (GB)
Title: Reciprocating internal combustion engines
IPC: F02B3/06
Filed: 1975-09-24
Abstract: 1473058 Pistons and cylinders SULZER BROS Ltd 24 Sept 1975 [26 Sept 1974] 39126/75 Heading F2T Oil retaining grooves are formed over the whole skirt area below the bottom piston ring land of an internal combustion engine piston 8 and over the complementary other area 13 of the cylinder liner 1 when the piston is at top dead centre. The grooves may be helical and multi-start, those on the piston and liner being of opposite hand. They may be of arcuate section or have a straight portion shallowly inclined to the piston axis and an arcuate portion forming an oil scraper edge.
Patent GB-1208285-A (GB)
Title: Combine harvesters having height-adjustable table
Inventor: WRIGHT ERNEST WALTER
IPC: A01D41/14
Filed: 1966-11-15
Abstract: 1,208,285. Combine harvesters. MASSEY-FERGUSON (AUSTRALIA) Ltd. 3 Nov., 1967 [15 Nov., 1966; 25 Aug., 1967], Nos. 50062/67 and 39140/67. Heading A1F. The table 37 of a combine harvester is detachably connected by hooks 42 and overcentre locks 43 to a frame 17 which is supported from the body 16 of the combine by a parallel linkage comprising upper links 26 and lower links which are in the form of an elevator casing 10. The links 26 have adjustable extension arms 28 to set the attitude of the conventional fingers 37A and cutter blade 38. In an embodiment the fingers form a comb to engage under the heads of the crop which is then cut by the blade. The table is raised by hydraulic jacks 32 pivoted to the body 16 at 35 and to the links 26 at 34. The elevator comprises a chain and slat conveyer 15 entrained around sprockets 12 and rollers 13, 14 carried on the ends of arms 13a, 14a pivoted to a shaft 10a longitudinally moved by screw adjuster 10b. A screw adjuster 16a and spring arrangement 16b adjust the angle between the arms 13a, 14a.
Patent GB-344963-A (GB)
Title: Heating of glass-houses and hot-houses
IPC: A01G9/24
Filed: 1929-12-23
Abstract: 344,963. Glasshouses. BLATCHFORD, A. O., 40, Balls Pond Road, Dalston, London. Dec. 23, 1929, No. 39204. [Class 20 (i).] Glasshouses are formed with double glass walls and roofs, heating pipes L being disposed in the space between the walls, and the top wooden frames F of the walls having apertures F<1> connecting the roof space with the wall space so that the former also is heated. The roof may be formed of overlapping frames, with connections between the spaces of the different frames. A vestibule may be fitted around the door J of the glasshouse.