baber/WOPTO huggingface dataset:
Patent GB-1437959-A (GB)
Title: Multiplexing transmission system
IPC: G08C15/00
Filed: 1973-05-18
Abstract: 1437959 Seismic signal reception; multiplex systems COMPAGNIE GENERALE DE GEOPHYSIQUE 18 May 1973 [19 May 1972] 23886/73 Headings H4D and H4L [Also in Division G4] The outputs from a plurality of seismic detectors C are converted to digital form and time division multiplexed and applied to a single transmission line 1 under the control of first pulse signals from a generator G. The signals are received and recorded at E. Each multiplexing stage A comprises a shift register from which the data is transmitted serially and means to recognize the first pulse signals, transmit data while suppressing passage of the first pulse signal to the next downstream multiplexing stage and then transmit a first pulse signal when data transmission has finished. As described, in a first embodiment, the first pulse signal has the form I c  (Fig. 3). This signal is received at the input of a first multiplexing station A 1  the negative pulses are removed by diode d and the remaining positive pulse I s  passes via OR gate P 2  on to the output line. The pulse I c  is also passed to detector D where one negative pulse is delayed by the period between the negative pulses and the two coincident pulses are fed to the two inputs of an AND gate, the outputs of which set flip-flop FF which after a delay at r enables AND gate P 1 . Clock pulses from clock H are fed to counter CO, to register R (which contains the digital value), and to digitizer a 1  at the recording device c 1 . The 18 data bits in the register are serially clocked out via gate P 2  on to the output. Counter CO then delivers 3 pulses (corresponding to the 19th, 20th and 21st clock pulses to pass gate P 1 ) to local generator CL which registers these pulses negative, positive, negative respectively forming a signal I cl  which is transmitted after the data and acts as a first pulse signal to the next downstream stage A 2  so that it can then transmit similarly. The 21st clock pulse also resets flip-flop FF and clears counter CO and register R. Means are provided to ensure that the register R is loaded from the digitizer when flip-flop FF has zero output. In a second embodiment, the generator G may transmit a series of signals I to reset the multiplex stations followed by signals A and then a plurality of sets of signals B and then a series of clock signals H equal to the number of register stages. Signal A activates the stages and B permits transmission in response to the H clock signals. A station converts the initial B signal to another A to prevent transmission from a downstream station and inserts an A at the end of the data so that the next station receives AB and can transmit. In a third embodiment, each multiplex stage has two registers so that all detectors can be coupled simultaneously while the contents of the other of the pair of detectors is transmitted. An arrangement for interconnecting stations so that the generator G and receiver E can be located together is described.
Patent GB-1388336-A (GB)
Title: Protective casings for pressure vessels
IPC: G21C9/00
Filed: 1973-05-18
Abstract: 1388336 Nuclear reactors SIEMENS AG 18 May 1973 [19 May 1972] 23950/73 Heading G6C  A protective casing 12 for surrounding the pressure vessel 1 of a PWR nuclear reactor comprises two parts 13, 14 one of which has lugs 15 which pass between pressure vessel pipe unions 5 and connect the two parts together. In the embodiment shown, the parts 13, 14 are connected together by keys 17 which co-operate with keyways in the lower part 13 and the lugs 15 depending from the upper part 14. The region of the connection is surrounded by a ring 20 to prevent opening of the joint under pressure. A catch ring 23 is secured to the upper end 22 of the casing 12 by serrations 21 forming a bayonet joint, and extends over a catch cover 24 mounted above the pressure vessel cover 7. Projections 28 on the pressure vessel 1 support the latter on the upper edge 18 of the lower casing part 13 while the casing 12 rests on the surrounding concrete biological shield 33 by means of a ring 29. A thermally-insulating layer 35 surrounds the casing 12 and the space between the layer 35 and the shielding 33 may be ventilated by cool air. Bellows seals 40, 41 prevent water, utilized to flood the reactor for refuelling, from penetrating around the casing 12. The cylindrical portion of the lower part 13 is of laminated construction. In another embodiment (Fig. 3, not shown), the casing is suspended from the biological shield by means of projections (50) extending from the lugs into locating members (51, 52) in a steel frame (54) set in the shield. Also, pipes (56-59) pass through the casing 12 to permit monitoring of the pressure vessel 1 by means of ultra-sonic equipment or sensitive microphones. In another embodiment (Fig. 5, not shown), the catch ring is enlarged to form a hood. In a further embodiment (Fig. 6, not shown), the lugs (15) are integral with the lower casing part (13), the catch ring (23) is integral with the upper casing part (14) and the two casing parts are secured together by means of serrations (66) forming a bayonet joint.
Patent GB-953131-A (GB)
Title: Leptospira vaccines
IPC: A61K39/02
Filed: 1961-07-03
Abstract: The invention comprises a leptospira vaccine consisting essentially of killed leptospira cells suspended in a buffered aqueous saline solution having a pH of about 7.1 to 7.3 in a concentration providing a bacterial count of approximately 200 billion 1,000 billion per mil said vaccine being substantially free of rabbit or other animal serum.  The vaccine is prepared from a leptospira culture by physically separating a major portion of the animal serum from the leptospira cells e.g. by centrifugation, and re-suspending the separated leptospira cells in a buffered aqueous saline solution especially one having a pH of 7.1 to 7.3.  Preferably, the separated leptospira cells are washed with a first buffered aqueous saline solution prior to resuspension in a second buffered aqueous saline solution.  The preferred aqueous solution of saline contains sodium chloride, disodium monohydrogen phosphate and monosodium dihydrogen phosphate in such proportions as to provide a pH of 7.1 to 7.3. The term "leptospira" includes any pathogenic organism of the genus Leptospira and includes Leptospira pomona, Leptospira canicola, Leptospira icterohaemorrhagiae and Leptospira grippotyphosa.  The vaccines are free from anaphylactoid reactions after injection into cattle.
Patent GB-510217-A (GB)
Title: Improvements in harvesting machines for standing crops
IPC: A01D45/30
Filed: 1938-08-15
Abstract: 510,217. Harvesting-machines , thrashing-machines. HOSKING, J. E. Aug. 15, 1938, No. 23995. [Classes 6 (iii) and 58] Seeds are beaten from the heads of standing plants by beaters 8 pivoted in staggered relation along the length of sleeves 7 secured on a shaft 6 extending between the end members 4 of a frame consisting of the members 4 and longitudinal members 1, 2 and 3. The frame is carried by two pairs of bars 29, each pair carrying a bearing 31 for a pin projecting from a horizontal frame 27 enclosing and supported by a land wheel 25. The frame is adjusted about the axis of the bearings by strips 32 projecting from the lower corners of the frame and provided with a series of apertures, any one of which may be engaged over pins 33 projecting from the horizontal frame 27. The beaters may be thin strips of metal or flexible material such as rubber, balata or leather, which may have metal tips, or they may be chains. The shaft 6 is driven by a motor 12 to cause the beaters to fly outwardly by centrifugal action and so to sweep the seeds into a semi-cylindrical casing 15 enclosing the shaft 6. The casing, which may be in two parts, has a forwardly projecting hood 18 with a baffle plate 22 to form a collecting box for the seeds. The front wall of the hood consists of a strip of perforated metal, sacking, canvas or gauze to permit the escape of air directed into the casing by the beaters. The machine is propelled by two handles 14, but may be carried at the front of a motor car or track.
Patent GB-1267779-A (GB)
Title: Hydrogenated resinous composition
IPC: C08F2/00
Filed: 1970-05-19
Abstract: 1,267,779. Olefin polymers. GOODYEAR TIRE & RUBBER CO. 19 May, 1970 [26 June, 1969], No. 24078/70. Heading C3P. Resinous polymers comprising 40 to 80 weight per cent piperylene units and 60 to 40 weight 2-methylbutene-2 units and having a softening point of at least 85‹ C., the unsaturation level of which has been reduced by hydrogenation to 40 to 85% of that of the starting polymer, may be prepared by copolymerizing a mixture of 20 to 75 weight per cent piperylene and 80 to 25 weight per cent 2-methylbutene-2 in the presence of an anhydrous halide catalyst and hydrogenating the product at 20‹ to 300‹ C. in the presence of a hydrogenation catalyst. In a modification the polymerization mixture may further comprise up to 50 weight per cent of piperylene dimers or trimers or other C 4-6  hydrocarbons to give products containing up to 25% of units thereof. Specified hydrocarbons are 2 - methylbutene - 1, 2,3 - dimethylbutene-1, 2,3 - dimethylbutene - 1, 3,3 - didimethylbutene-1, pentene-1, pentene-2, 2- methylpentene - 1, 2 - methylpentene - 2, 3- methylpentene - 2, 4 - methylpentene - 1, 4- methylpentene-2, hexene-2, isoprene, cyclopentene, cyclohexene and 1,3-cyclopentadiene. Polymerization may be effected in the presence of a halide of aluminium, tin or boron, and hydrogenation in the presence of nickel, palladium, platinum, cobalt, osmium, rhenium, ruthenium, nickel sulphides, nickel oxide, copper chromite, cobalt/molybdenum, chromium, molybdenum oxide, molybdenum sulphide, platinum oxide, cobalt oxide, rhenium oxide, ruthenium oxide, sponge iron, iron oxide, sponge zinc or zinc oxide, preferably supported on a particulate substrate. The products are useful as tackifiers in rubber-based and hotmelt adhesives.
Patent GB-1074202-A (GB)
Title: Process for carburetting gases
Inventor: PETERS KURT
IPC: C10J1/213
Filed: 1964-06-10
Abstract: Combustible gases are produced by carburetting a gas or gas mixture at atmospheric temperature with a liquid mixture of hydrocarbons of different volatility in countercurrent columns. The temperature of the incoming liquid is maintained at about 20 DEG  C.  Gases which may be carburetted are those produced from solid fuel, cracked gases from steam reformation or partial combustion processes, blast furnace gas, industrial gases and inert gases, and the carburetting mixture may be of any origin, e.g. natural petroleum, distillation or cracking products &c.  The apparatus preferably comprises packed columns, but perforated plate or bubble tray columns, or inclined tubes may be used.  The cooled liquid mixture leaving the apparatus may precool the incoming liquid in heat exchangers, the incoming gases may be carburetted, e.g. by injection, before entering the column, and the carburetted gases may be mixed with non-carbureted gases.  In a process for making cracked gas, the lower boiling-point portions of the liquid feed go to carburet the cracked gas which is made from the higher boiling portions.  Seven comparative specific examples are described, in which C5H12, C6H14, C7H16 and C8H18 are used as carburetting agent, with or without C6H6, the gases carburetted including cracked gas, blast furnace gas and nitrogen.
Patent GB-263715-A (GB)
Title: An improved pocket mirror
IPC: A45D42/06
Filed: 1926-09-30
Abstract: 263,715. Zala, E. Sept. 30, 1926. No Patent granted (Sealing fee not paid). Mirrors.-A hand or pocket mirror a is provided at the back with a thimble-like leather &c. socket b and a clasp, ring, loop or clip c to enable it to be secured to a finger. The clasp &c. c may be dispensed with.
Patent GB-149858-A (GB)
Title: Improvements in electric signalling systems, especially applicable to combined telegraph and telephone systems
IPC: H04B3/42
Filed: 1919-10-03
Abstract: 149,858. Western Electric Co., (Western Electric Co.). Oct. 3, 1919. Simultaneous telegraphy and telephony; repeating and amplifying systems.-On a line used for simultaneous telegraphy and telephony, a single amplifying-set is designed to repeat both classes of signal. This involves the use of transformers capable of dealing with widely different frequencies, and generally two separate transformers are used for the telegraphic and telephonic currents. Associated with the transformers on the input side of the repeater are devices for attenuating low frequencies more than high, so as to compensate for the opposite ettect which occurs in the line, thereby equalizing the total attenuation for all frequencies. The amplifying-set is also suitable for repeating intermediate frequencies, such as the current of 133 cycles sometimes used for telephone calls. In the one-way repeater shown in Fig. 1, the input side of the thermionic amplifier 16 is connected to line 1 through transformers 3, 4 designed respectively for telephone and telegraph currents, and its output side is connected to line 2 through corresponding transformers 17, 18. The windings of the telephone transformers are halved and the telegraph transformers are connected between them, or vice versa, and the telegraph windings are shunted by condensers through which the telephone currents pass. A composite circuit 7 between the two halves of the primary of the transformer 3 equalizes the attenuation of the different frequencies of the telephone currents, and a circuit 8 in the primary of the transformer 4 does the same for the different frequencies (of a lower order) of which the telegraph currents may be supposed to consist, or the equalizing-circuits 7, 8 may both be in series with the primaries of both transformers. Direct current can pass from line 1 to line 2 through impedances 21. Circuits are described in which the same principles are applied to a twoway repeater.
Patent GB-599580-A (GB)
Title: Process for the production of new and useful porous articles consisting essentially of polymers of tetrafluoroethylene
IPC: B29C67/20
Filed: 1945-09-19
Abstract: Porous articles are made from polymers or copolymers of tetrafluoroethylene by heating the polymer to a temperature of 327-500 DEG  C., cooling, subdividing to a particle size less than 20 mesh and not less than 300 mesh, moulding the powder under pressure at a temperature below 327 DEG  C. and heating the preform until all its parts are at a temperature of 327-500 DEG  C.  The heating may be effected in air, in the vapour of a boiling liquid, in a hot liquid, or in a molten inorganic salt or metal.  The sintered article may be cooled slowly or quenched in a cold medium.  For bearing material the quenching liquid may be oil, which is retained in the pores.  There may be incorporated in the polymer minor amounts of copper, graphite, asbestos, glass, silica, ammonium chloride or titanium dioxide.  The porosity of the article may be increased by incorporating therein sodium chloride, which is subsequently removed by washing with water, or ammonium nitrate or thiocyanate, paraffin wax, polyethylene or nitrocellulose, which is decomposed during the heating step.  The products may be used as filtering media.  Specification 583,418 and U.S.A. Specification 2,230,654 are referred to.
Patent GB-1017342-A (GB)
Title: Improvements in or relating to synthetic-material cartridges for liquids
IPC: B43K5/14
Filed: 1962-06-22
Abstract: 1,017,342. Capsules; opening container. AURORA S.p.A. June 22, 1962 [June 23, 1961], No. 24203/62. Headings B8C and B8D. [Also in Division B6] A cartridge of synthetic materials for liquids such as ink has one or more longitudinal capillary channels e.g. 3 formed in the inner surface of the casing 1. The channels extend from the bottom of the cartridge to a perforable membrane 2. The channels ensure a regular flow of liquid from the cartridge. In a modification channels 6, Fig. 4, are provided over the whole inner surface of the casing 1.
Patent GB-733797-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: DAVENPORT FRANK ARTHUR
IPC: F16L37/58
Filed: 1952-09-27
Abstract: 733,797. Pipe couplings. DUNLOP RUBBER CO., Ltd. Sept. 2, 1953 [Sept. 27, 1952], No. 24263/52. Class 99 (1). A coupling member 3 has a seating 20 coaxial with a tapering portion 19 which engages in a corresponding tapered recess 12 in a coupling member 2 having a seating 10 which may be provided with concentric grooves 11, and an annular sealing washer 21 is compressed between the seatings 10, 20 by axial pressure applied to the members 2, 3. The washer 21 may be bonded to the seating 20. Coupling connectors 14, 23 are bonded to the members 2, 3 by rubber compression rings 13, 22, and the members may be screwed into elbows 4, 7, the elbow 4 being connected by a pipe 17 to the interior of the rotatable member 5 of a curing unit 6 and the elbow 7 being connected by a pipe 25 to a supply of cold water. The elbow 7 may be attached to a plate 27 slidable in guides 28 and against an adjustable compression spring 32, the guides being fixed to the stationary member 9 of the unit 6; alternatively, movement of the parts 3, 23 and 7 may be resiliently resisted by a rubber buffer. Connection and disconnection of the coupling is made by rotation of the member 5 relative to the member 9, and there may be an axial clearance in the .joint between the members which clearance is taken up by hydraulic pressure, the rings 13, 22 allowing the members 2, 3 to move out of alignment.
Patent GB-790289-A (GB)
Title: Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures
IPC: C10K1/12
Filed: 1955-03-01
Abstract: The process of the parent Specification is modified in that a minor portion of the stream of solution from the main boiling and steam stripping operation is more completely regenerated by subjection to additional boiling and steam stripping at a pressure and corresponding boiling temperature greater than those in the main boiling and steam stripping operation, the minor portion being then reduced in temperature to at least that of the major portion which latter is recycled to an intermediate level in the absorption column whilst the minor portion is separately recycled to the top of the column.  The plant used is as described in Specification 790,287 although the vacuum pump for the regenerator may be left inoperative.
Patent GB-628367-A (GB)
Title: Method and arrangement for converting time-modulated electric pulses into amplitude-modulated pulses
IPC: H04J3/00
Filed: 1947-09-05
Abstract: 628,367. Pulse modulation. PATELHOLD PATENTVERWERTUNGS- & ELEKTROHOLDING AKT.-GES. Sept. 5. 1947, No. 24536. Convention date, Sept. 6, 1946. [Class 40 (v)] Time-modulated pulses are converted into amplitude-modulated pulses which occur at regular intervals. In one embodiment, pulses which are duration-modulated and'in which the position of leading and trailing edges relative to equal time periods both represent the modulation, are converted into two interlaced series of regularly recurring amplitude-modulated pulses, one representing the leading edge and the other the trailing edge modulation values. The signal pulses U0, Fig. 3a, and pulses U1 derived from a local generator and having a phase lead of 90 degrees relative to U0, are applied to the grid of valve VL, Fig. 4. The valve conducts during the period of overlap of the pulses, Fig. 3b, to charge condenser C, the current in resistance R serving to render valve VE non-conducting. At the end of the period, VE again becomes conducting to discharge the condenser, and a shunt rectifier G1 prevents the condenser being charged in the opposite direction. The voltages vab1, vab2, &c., Fig. 3c, to which condenser C is charged, produce output pulses from valve Va of corresponding amplitude, the valve being rendered periodically conducting by pulses U2, Fig. 3d, which are equally spaced and occur at the end of pulses U1. The signal pulses U0, Fig. 5a, are also applied to valve VL1, Fig. 6, together with negative pulses V, from a local generator, which have a phase lead of 90 degrees relative to U0. The valve conducts during the period of overlap of the pulses, Fig. 5b, to charge condenser C<1>, and the voltages vab1, vab2, &c., Fig. 5c, remain stored on the condenser until pulses Vl on valve VE<1> render the latter conducting to discharge the condenser. At the same time pulses V2, Fig. 5d, render valve Va<1> conducting to give output pulses of amplitude determined by the stored potential on condenser C<1>. The pulses U2, V2, from valves Va, Va<1> respectively, are combined to form a single train of amplitude-modulated pulses occurring at regular time intervals.
Patent GB-1465963-A (GB)
Title: Welding of plastics materials
IPC: A61F5/44
Filed: 1974-06-01
Abstract: 1465963 Seaming CDM PLASTICS (KEW) Ltd 1 June 1974 24365/74 Heading B5K [Also in Division B8] A watertight seal around a tube secured in a plastics bag is effected by a number of parallel spaced apart welds 16 running across the tube and stretching the wall material over the tube. The electrodes 18 which produce the high frequency welds 16 are coated with an insulating material 20 which may be P.T.F.E. if the bag is made of P.V.C. The material 20 prevents arcing. A short length of tube may project within the bag beyond the welds and being unconstrained by the seal is of the normal tube diameter and assists in forming the watertight seal.