baber/WOPTO huggingface dataset:
Patent GB-1243070-A (GB)
Title: System for automatically charging telegraphic communications
IPC: H04L12/14
Filed: 1968-10-14
Abstract: 1,243,070. Telegraphy. C.I.T. COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 14 Oct., 1968 [15 Nov., 1967], No. 48649/68. Heading H4P. An arrangement in a telegraph exchange for initiating call-charging includes means for distinguishing between the "international call connected" signal and the "clearing" signal and subsequently for detecting a signal from the subscriber (the first character in the "answer back" sequence) indicating whether the call is chargeable. The embodiment described comprises a receiver R for polar 5-bit characters. Each character received on L is passed to store M1- M5. A bi-stable circuit B1 is enabled during an interval 130-140 m.sec. after the start of the received Start bit, i.e. an interval starting after the end of a character and ending before the end of a "call connected signal" (of 150 m.sec. duration). The bi-stable changes state if, when enabled, the signal on L is negative and all bits in the store are negative. This change of state indicates the presence of a "call connected" or "clearing" signal. A second bi-stable circuit B2 is enabled during an interval 180-200 m.sec., and changes state if B1 has changed state and, in this interval, the signal on L is positive, indicating that a "call connected" signal has been received. Transistor T1 gives an output initiating charging if B2 has changed state and the duration of three characters has elapsed and the last character stored has all of its bits positive, this character being the first of the "answer back" sequence and indicating that the call is chargeable.
Patent GB-1193489-A (GB)
Title: Production of Acrylic Acid
IPC: B01J27/057
Filed: 1967-10-27
Abstract: 1,193,489. Making acrylic acid. BADISCHE ANALIN- & SODA-FABRIK A.G. 27 Oct., 1967 [28 Oct., 1966], No. 48858/67. Heading C2C. Propylene or acrolein is oxidized to acrylic acid in the presence of molecular oxygen and a catalyst which has been made by mixing in the solid state CoO or a precursor therefor, MoO 3  or a precursor therefor and heating at 300-800‹ C. Example 6 describes the oxidation at 356- 390‹ C. using a Co, Mo, Te catalyst.
Patent GB-1453754-A (GB)
Title: Antenna apparatus for an electronic security system
IPC: G08B13/24
Filed: 1974-11-13
Abstract: 1453754 Aerials; transponder systems G J LICHTBLAU 13 Nov 1974 [14 Nov 1973] 49194/74 Headings H4A and H4L In an antenna system for sensing the presence of a tag 12 (e.g. on an item to be identified in a protected area) carrying a resonance circuit, a receiving loop antenna 10 provides an indication of the presence of the circuit to a sensing system 16 and is in parallel plane to and in spaced balanced coupling relationship with a transmitting loop antenna 22 which is energizable to alter the resonant properties of the tag circuit, e.g. by burning out a fusible link by means of a high intensity beam. (This may be done when allowing authorized removal of the item from the area). To prevent damage to the circuitry 16, which detects and utilizes the signal received by the antenna 10, when the transmitting antenna 22 transmits, - switching arrangements which isolate the receiving antenna from the sensing circuitry come into operation when the transmitting antenna is energized. When a tag is sensed, a signal is provided to indicator 18 and also to the tag deactivation system 20, so that a signal at the deactivation frequency is transmitted by antenna 22. Alternatively the antenna 22 can be energized by a manual control 19. After the operation of the system 20 the deactivation of the tag is sensed by aerial 10 and indicated at 24. Antenna construction.-The antenna 22 is a square single turn planar copper tubing loop of very high Q (>300) driven by an inductive coupling loop 28 in a plane perpendicular to the antenna plane. The antenna is mounted within a conductive shielded housing 25. The sensing antenna 10 is a multiturn loop formed as a printed or etched path on a circuit board 33. A reed relay 45 enables the receiving antenna to be disabled, and the leads 52 for this are taken at right angles to the plane of the coils to the housing 25, and then within a shield along the housing wall to a connector 54 (Fig. 3, not shown).
Patent GB-1204439-A (GB)
Title: Sewing machine improvements
IPC: D05B85/00
Filed: 1968-10-17
Abstract: 1,204,439. Sewing-machines. AMERICAN MACHINE & FOUNDRY CO. 17 Oct., 1968 [9 Oct., 1968], No. 49218/68. Heading D1G. In a blind stitch sewing machine a curved needle runs along a line 28 through slots 26', 27' in a base-plate the upper limit of the slot being defined by blades 32, 33 which depend partially into the slots. A node is formed in the fabric by a plunger or anvil 18 which has a slotted head 18' and which co-operates with an interchangeable block 43 to vary the size of the node and hence the bite of the needle in the fabric. The blade 32 is not as thick as the slot is wide so that the needle thread can pass out of the slot after stitching and during the movement the blade 32 serves to separate the two threads passing from the needle eye namely the thread from the eye to the fabric and the trailing end of the thread from the needle eye. The machine comprises a curved needle 13 and two oscillatory holders 10, 11 for transferring the needle back and fourth therebetween.
Patent GB-1275607-A (GB)
Title: Pharmaceutical compositions
IPC: A61K31/115
Filed: 1969-10-07
Abstract: 1275607 Pharmaceutical compositions comprising formocaseins ROUSSEL UCLAF 7 Oct 1969 [7 Oct 1968] 49291/69 Heading A5B [Also in Division C3] Pharmaceutical compositions for use in the treatment of conditions caused by toxins produced by various microorganisms and/or in the treatment of gastrointestinal disturbances comprise a formocasein (formed by the reaction of formaldehyde with casein) and a pharmaceutically acceptable carrier or diluent. The compositions may be administered orally or topically in the form of tablets, capsules, sachets, powders, granules, suspensions, creams, onitments, jellies, dry dressings or toothpastes. The compositions may also contain a vitamin (e.g. biotin or pyridoxal hydrochloride), an antibiotic (e.g. a neomycin such as neomycin B sulphate) or an antiseptic or an amoebicide such as 5-chloro-7-iodo-8-hydroxyquinoline.
Patent GB-1073307-A (GB)
Title: Gas injector pump
IPC: F04F5/46
Filed: 1963-12-13
Abstract: 1,073,307. Injectors. M.A.N. TURBO G.m.b.H. Dec.13, 1963 [Dec. 14, 1962], No. 49327/63. Heading F1E. In a gas injector pump for feeding gaseous liquid or pulverulent material having a laval nozzle 1, Fig. 4, a mixing zone 3 downstream of the nozzle 1 and a material feed means 9 opening downstream of the nozzle end face, the feed means are so dimensioned and arranged that in the mixing zone a critical mass relationship between the propellant gas and pumped medium is temporarily exceeded by which the gas velocity at the nozzle exit is changed from supersonic to subsonic velocity and the pumped material supply is temporarily interrupted so that in the injector stream a suction phase alternates periodically with an ejection phase. In other embodiments the mixing zone axially adjoins the nozzle exit and the pumped medium enters through an annular admission chamber (4), Fig. 1 (not shown) or in modifications of this embodiment the diameter of the mixing zone is smaller or larger than the nozzle exit diameter forming steps (6), Fig. 2 (not shown). In a further modification in which the mixing zone is enlarged to form a step the pumped medium enters through an annular nozzle (8) Fig. 3 (not shown) surrounding the nozzle. In modifications of the embodiment of Fig. 4 a step is formed at the junction between the nozzle and the mixing zone or the mixing zone has a constricted cross-section downstream of the suction opening (2), Fig. 6 (not shown). In a further embodiment the annular section opening (2), Fig. 8 (not shown) adjoins a rounded portion (13) of the nozzle to form an annular lip 14.
Patent GB-1113983-A (GB)
Title: Improvements in positioning servo systems
Inventor: SEARLE ERIC HENRY
IPC: G05B19/23
Filed: 1964-03-13
Abstract: 1,113,983. Digital position control. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. 19 May, 1965 [13 March, 1964], No. 49367/63. Heading G4H. A positioning system comprises a rotor for driving an output shaft through a clutch, a pulse generator 4 and a counter 5-8 giving a signal representing the shaft position, a comparator for comparing the signal with a desired position signal and a clutch control member which disengages the clutch when the difference between the signals is less than a given amount. A reversible motor 1, drives the output shaft through gearing 2. The generator 4 produces a pulse for each rotation or part of rotation of the output shaft and the pulses are counted in binary counting stages 5-8. The desired position is stored in binary form in unit 9 and appears on leads 10-13. Each digit is compared by diodes 14, 19 &c. with the corresponding digit from the counter. Equality is indicated when all four inputs to gate 18 are " 0," the output of the gate then causing control 27 to open contact 28 and disengage the clutch 3. The direction of the driving motor is controlled by unit 29 receiving the desired and actual position signals through weighted resistors. The direction is determined by comparing the two values, unit 38 setting relay 39 according to the required direction. The output from unit 29 is also applied to speed-control unit 41 to determine the speed of the motor in accordance with the amount of the difference between desired and actual positions.
Patent GB-1437101-A (GB)
Title: Apparatus for the continuous horizontal casting of metals or alloys
IPC: B22D11/047
Filed: 1973-10-24
Abstract: 1437101 Continuous casting INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 24 Oct 1973 [6 Nov 1972] 49476/73 Heading B3F [Also in Division F2 and F4] A vessel 1 (e.g. into which molten metal may be fed continuously or intermittently through a pipe 29 and be heated and circulated by an induction heating device 26 and have an inert gas passed into it through a porous plug 27) communicates through an outlet 2 with a horizontal mould 4, the passage to the mould being closable, e.g. by a gate valve 7. The gate 7 slides in notches 30, 31 in the faces of apertured plates 8, 9 between which the gate is clamped and is operated by a cylinder. Slide portions (19, 20) of a plate 11 fixed against the vessel 1 guide the ends of the elongated gate 7. The withdrawal speed of the casting may be varied cyclically. The gate 7, plates 8, 9 and a nozzle 10 to the copper mould 4 may be of aluminous material, zirconia or boron nitride. The members 7-9 are clamped by a plate 13 loaded by springs on rods 16. When the gate 7 is closed, the nozzle 10 and mould 4 may be replaced by others of different cross-section.
Patent GB-1086909-A (GB)
Title: Improvements in or relating to magnetic conveyors
Inventor: ALFREDEEN STEN ALFRED
IPC: B65G17/46
Filed: 1965-11-22
Abstract: 1,086,909. Magnetic separators. DIAMOND POWER SPECIALITY CORPORATION. Nov. 22, 1965, No. 49498/65. Heading B2J. [Also in Division B8] Cast iron pellets fed to a shoot 30 are lifted by a magnetised conveyer chain 10. Downward loss of the pellets is avoided by the provision of a barrier magnetic field produced at right angles to the direction of the main field by magnets 36, 38. The main field is produced by magnets 16 and pole pieces (18), (20) (Fig. 4, not shown). The latter embrace a channel (22) guiding the chain 10. The barrier field is constrained by soft iron rods (50) (Fig. 5, not shown). The apparatus may be used to separate soot mixed with the pellets.
Patent GB-1448244-A (GB)
Title: Composite ceramic turbine rotor
Inventor: TORTI JR MAURICE L
IPC: F01D5/28
Filed: 1973-10-24
Abstract: 1448244 Sintered turbine rotors NORTON CO 24 Oct 1973 [27 Oct 1972] 49532/73 Heading C7D [Also in Division F1] A composite ceramic turbine rotor comprises a hub section 2 and a blade section 6 permanently secured together, the hub section being of substantially higher flexural strength than the blade section. The flexural strength of the hub section is greater than 80 x 10<SP>3</SP> psi and that of the blade section is less than 60 x 10<SP>3</SP> psi. The ceramic material of the hub section and the blade section is silicon carbide, silicon nitride, or a mixture thereof, the specific gravity of the hub section being 90 to 100% and that of the blade section 60 to 90% of the theoretical specific gravity of the ceramic material of which they are composed. The hub section may be made in two parts joined together with refractory cement. In one embodiment a blade ring section of silicon nitride is formed by slip casting, being then sintered. The blade section is then placed in a mould of the desired final configuration; silicon nitride moulding powder which may contain refractory fibres of carbon, or silicon nitride or boron nitride is placed in the mould and then hot-pressed to the theoretical specific gravity of the silicon nitride.
Patent GB-1349126-A (GB)
Title: Wireless receiver with incorporated time switch
IPC: G04C23/16
Filed: 1972-10-27
Abstract: 1349126 Time controlled radio receivers SABA SCHWARZWAELDER APPARATEBAU - ANSTALT AUGUST SCHWER SOEHNE GmbH 27 Oct 1972 [7 April 1972] 49625/72 Heading H3Q [Also in Division G3] In a wireless receiver set with incorporated time switch for automatically switching the set on or off, the switching on time and switching on period is predeterminable via preselector switches 3, 8 located on a printed circuit board of the set, the indication of the actual time is effected by electric digital indicator tubes 5 and the preselector switches have a collar 4 provided with digits and are mounted coaxially with their respective electric digital indicator tube. The wireless set may serve as an alarm in that it can be set to switch on at a predetermined time and has a switch 8, 10 to switch the set off automatically after a predetermined period of a time. A plate 1 carries a printed circuit for the receiver and the digital time switch. Between the plate 1 on which the contact leads of the preselector switch are located and an angle member 2 are switch wheels 3 of the preselector switch each having a collar 4 on which are digits corresponding to the switch positions. Contacts (6, Fig. 2, not shown) on the switch wheels 3 slide over tracks printed on the plate 1. The digital clock indicator tubes 5 are visible through cutouts 7 in the receiver housing. A further switch wheel 8 is provided by means of which the switching on period may be preselected within limits. Also provided is a switch 9 for switching off the set and a switch 10 for switching in the automatic cutout after the predetermined time preselected by the setting wheel 8.
Patent GB-1057398-A (GB)
Title: Improvements in and relating to the production of epoxides
Filed: 1963-12-17
Abstract: In a continuous process for the preparation of epoxides containing not less than three carbon atoms for obtaining acetic acid as a by-product, a liquid stream of acetaldehyde and at least one olefinically unsaturated compound containing not less than three carbon atoms is introduced into a reactor to form at least one liquid phase, in the presence of a catalyst comprising the chlorides and/or bromides of Cu, Co or Fe and optionally in the presence of an inert liquid diluent, the reactants having a maximum reactor residence time of 1 hr., an oxygen-containing gas is passed into the liquid phase which is maintained at a temperature of 35-225 DEG  C., a portion of the liquid phase is continuously removed and an epoxide and acetic acid separated from said portion.  Suitable olefinic compounds include alkenes, cycloalkenes, polyenes, halogenated olefins, unsaturated carboxylic acids, esters, amines, nitriles, ketones and alcohols. The reaction system may be cooled by dilution with an inert diluent, e.g. saturated aliphatic hydrocarbons, aromatics, saturated esters, alcohols and ketones, or by using excess of acetaldehyde or the olefinic reactant.  The catalyst, preferred concentration 0.000125%-0.125% by weight of acetaldehyde, may be in solution, in solid suspension or impregnated on a solid support.  The preferred temperatures and reactor-residence times are 50-200 DEG  C. and 3-25 minutes respectively.  Examples (1)-(13) describe the preparation of propylene oxide, (14) octene-2-oxide, (15) octene-1 oxide, (16) and (17) tetradecene-1 oxide, (18) dodecene-1 oxide and (19) the epoxide of soya bean oil.  Variable amounts of acetic acid are obtained as a by-product, e.g. in a reactant stream containing 8% acetaldehyde and 0.00215% of colbaltous chloride by weight, 7-11% of acetic acid was isolated from the product stream.  Reference has been directed by the Comptroller to Specification 970,337.
Patent GB-1243630-A (GB)
Title: Power plant including a gas turbine
Inventor: HOPE-GILL CHARLES DAVID
IPC: F02C7/12
Filed: 1967-11-07
Abstract: 1,243,630. Gas turbine plant. C. D. HOPEGILL. Nov.1, 1968 [Nov. 7, 1967], No. 50525/67. Headings F1G and F1T. The invention relates to a gas turbine plant comprising a series of combustion chambers disposed around the axis, the combustion chambers comprising two sets, a first set supplying high temperature gas streams to a first set of bladed stator regions and a second set supplying relatively low temperature gas streams to a second set of bladed stator regions. The stator blades are so angled that the angle of incidence of the low temperature gas streams on the rotor blades is such that the gas is caused to perform a smaller amount of work whereas the angle of incidence of the high temperature gas streams on the rotor blades is such that a greater amount of energy is extracted from the gas to drive the turbine. The gas turbine plant shown in Fig. 1 comprises compressor 25, combustion equipment comprising a series of flame tubes 28, 28<SP>1</SP> and a turbine 27. Fuel is supplied only to alternate flame tubes so that the rotor blades first receive working fluid at high temperature and then working fluid at low temperature. Fuel may be supplied to all flame tubes but alternate tubes are supplied with less fuel. The stator blades may be made adjustable. The two working fluids discharging from the turbine may be mixed and the mixed working fluid passed to a further turbine. The further turbine may be mounted on the same shaft as the first turbine or may be on a separate shaft.
Patent GB-1419149-A (GB)
Title: Process for sulphonating organic material
IPC: C07C303/00
Filed: 1973-10-31
Abstract: 1419149 Sulphonation process LION FAT & OIL CO Ltd 31 Oct 1973 50584/73 Heading C2C A process for sulfonation or sulfation of organic material by contacting a falling thin film of said material with a parallel stream of SO 3 /inert gas comprises causing 2 to 12 volumes of an SO 3 /containing cooling gas, in which the SO 3  content is 1-20 wt. per cent of the total amount of SO 3  employed, per volume of the stream of SO 3 /inert gas to flow between the falling thin film of organic material and the parallel stream of SO 3 /inert gas, the temperature and the velocity of the stream of SO 3 /inert gas being respectively 20-50 C. and from substantially the same to 1À4 times as much as that of the stream of SO 3 -containing cooling gas, the temperature and the velocity of the stream of SO 3 -containing cooling gas being respectively 10-40 C. and 20-100 m./sec., and the concentration of SO 3  in the SO 3 -containing cooling gas being 0À01-2 vol. per cent and the concentration of SO 3  in said SO 3 -inert gas being 3-15 vol. per cent. The organic material may be selected from α-olefins having 8-30 carbon atoms non- terminal olefins having 8-30 carbon atoms, vinylidene-type olefins having 8-30 carbon atoms, alkyl benzenes having 8-15 carbon atoms, aliphatic alcohols having 8-24 carbon atoms, alkylene oxide derivatives of aliphaticalcohols having 8-22 carbon atoms and alkylene oxide derivatives of alkyl phenols having 8-15 carbon atoms, and the cooling gas and said inert gas may be selected from air, nitrogen and CO 2 .
Patent GB-1369251-A (GB)
Title: Lactone diols and their use in the preparation of prostaglandins
Inventor: KELLY R C
IPC: C07D319/16
Filed: 1971-11-01
Abstract: 1369251 Prostaglandins UPJOHN CO 1 Nov 1971 [27 Nov 1970] 50598/71 Heading C2C The invention comprises prostaglandins of the formula, wherein THP is 2-tetrahydropyranyl, Z is pentcis-2-enyl or pent-2-ynyl, and # indicates attachment of THP to the side chain in S or R configuration, and processes for preparing PGE 3 , dl-PGE 3 , and their 15-epimers and PGF 3 α, dl-PGF 3 α and their 15-epimers. The novel compounds are prepared by (a) reacting 6 - (1,2 - dihydroxy - 4 - heptynyl) - 3 - hydroxy- 2-bicyclo[3,1,0]hexaneacetic acid γ-lactone with an alkenesulphenyl halide, (b) treating the re-  sulting bis-sulphonate with water at 0 to 60 C., (c) separating the resulting diols of the formula (d) converting the separate products to the bis- (tetrahydropyranyl) ether, (e) reducing the lactone oxo group to a hydroxy group and (f) the Wittig alkylation of the resulting lactol, with the proviso that, before or after any of the steps (a) to (f) the -C#C- radical is reduced to cis-CH=CH-. The PGE 3  derivatives are obtained by the oxidation and hydrolysis of the above novel compounds, and, if necessary, reduction of -C#C- to cis-OH = CH-. The PGF 3 α derivatives are prepared bycarrying out steps (a), (b), (c), (e) and (f) mentioned above with the proviso that, before or after any of the steps (a) to (c), (e) and (f) the -C#C- radical is reduced to cis-CH = CH-.
Patent GB-1212372-A (GB)
Title: Method and apparatus for flushing, purifying and/or degassing molten metals
IPC: C22B9/04
Filed: 1967-11-10
Abstract: 1,212,372. Continuous casting. MESSER GRIESHEIM G.m.b.H. 10 Nov., 1967 [12 Nov., 1966], No. 51206/67. Heading B3F. In a method of continuous casting, a flushing, purifying and/or degassing gas is blown on to the surface of the molten metal in the mould 2 from a lance 4, and the gas rising from the surface provides a protective shield for the pouring jet against the access of air. A bellows shield (6) (Fig. 2, not shown) may be provided between a delivery channel 1 and the mould 2, to retain the gas around the pouring jet before passing out through an aperture 7. There may be a reduced pressure to extract the gas. The gas may be inert or reactive and may be used as a carrier for gaseous, liquid or solid additives.
Patent GB-1085989-A (GB)
Title: Xerographic plate
IPC: G03G5/10
Filed: 1964-12-16
Abstract: 1,085,989. Xerographic plate. RANK XEROX Ltd. Dec. 16, 1964 [Jan. 24, 1964], No. 51248/64. Heading B5N. [Also in Division H1] A xerographic plate comprises first and second parallel plate members, a photoconductive insulating assembly supported on one surface of the first plate, a spacing member between the plates and a strip joining the edges of the plates. Aluminium plates 12 and 14 are spaced apart by an aluminium honeycomb 20 and a thermoplastic impact-resistant strip 18, e.g. of " Implex " (Registered Trade Mark) or nylon, the honeycomb 20 being joined to the plates 12 and 14 by an epoxy resin at 22 which also provides electrical contact between the two plates. A conductive plate 16 is cemented to plate 12 and upon 16 is deposited a photoconductive insulating layer 17 of vitreous Se, Se + S or ZnO which may be a continuous layer or discrete particles in a resinous binder. In a modification (Fig. 4, not shown) the strip 18 is replaced by a channel member whose outer edge projects beyond the plates and is polished and adapted to engage drive rollers for use in xerographic apparatus.