baber/WOPTO huggingface dataset:
Patent GB-1320275-A (GB)
Title: Fuel cell system having a natural circulation boiler
IPC: F22B37/00
Filed: 1971-11-29
Abstract: 1320275 Fuel cell and steam reformer system UNITED AIRCRAFT CORP 29 Nov 1971 [16 Dec 1970] 55332/71 Heading H1B A system in which hydrogen fuel for a fuel cell 2 is derived from a hydrocarbon fuel steam reformer 22 and in which heat derived from cooling the fuel cell is used to generate steam for the reformer comprises an upper steam drum 16 and a lower water drum 18 connected by a downcomer 20, a riser 19 from the lower drum being connected to cooling passages 14 in the fuel cell. The steam in line 32 passes through a superheater 24 to the reformer reactor 28, an ejector 26 in the line mixing hydrocarbon fuel with the steam. Hydrogen from the reactor passes through a shift converter 30 and line 38 to the fuel chambers 10. Additional heat is given to the water by passing the hydrogen line 38 and reactor exhaust line 40 through the drum 18; alternatively, these lines may pass through the drum 16. The water circulates by natural convection.
Patent GB-1453299-A (GB)
Title: Ratchet controlled levers
IPC: B60K15/00
Filed: 1973-11-26
Abstract: 1453299 Linkwork; one-way detents CHRYSLER UNITED KINGDOM Ltd 20 Nov 1974 [29 Nov 1973] 55431/73 Headings F2K and F2E [Also in Division B7] A ratchet controlled channel section lever 10, for operating an on/off fuel supply valve (not shown) in a diesel engined vehicle, carries a spring pawl 33 which engages ratchet teeth 49 of a ratchet plate 37 non-rotatably coaxially mounted on a pivot pin assembly 21 on which the lever 10 is turnably mounted at 14, 15. The lever 10 is connected to a lever (not shown) on the fuel valve by a Bowden cable the movable core 55 of which is threaded over the grooved periphery 44 of a cable guide plate 36 axially fixed and non-rotatable on a push-button sleeve 22 coaxially slidably mounted on the pivot pin 21 adjacent the ratchet plate 37, the end of the core 55 being connected at 56 to the lever 10. A spring 48 normally biases the ratchet plate 37 and the push-button sleeve 22 leftwardly as viewed in Fig. 2 whereby the ratchet plate is maintained in the path of the pawl 33 to retain the lever 10 when moved from its fuel "on" position (shown in full in Fig. 1) to its angular position corresponding to the fuel "off" position (shown chain dotted in Fig. 1), in which latter position the lever is held by its pawl 33 and fixed ratchet plate 37. Rapid release of the lever 10 is effected by manually inwardly pressing an end cap 29 to axially move the sleeve 22 against the spring 48 to axially move and thus disengage the ratchet plate 37 from the pawl 33 thereby permitting the lever 10 to automatically return to the fuel "on" position under the action of a spring (not shown) on the fuel supply valve lever. Fig. 5 (not shown) illustrates an identical ratchet lever arrangement incorporating a modified pawl assembly. The manual operation of the sleeve member 22 may be replaced by hydraulic or pneumatic means (not shown).
Patent GB-1100860-A (GB)
Title: Gas turbine engine bladed rotors
IPC: F01D5/30
Filed: 1966-12-12
Abstract: 1,100,860. Gas turbine rotors. GENERAL MOTORS CORPORATION. Dec. 12, 1966 [April 22, 1966], No. 55514/66. Heading F1T. A gas turbine rotor disc 14 having blades 16 mounted in axially extending fir-tree slots has annular upstream and downstream annular segmental sealing and blade locking plates 26, 46 covering the blade roots 18. The upstream plate 26 comprises, Fig. 3, six larger segments 28 alternating with six shorter triangular segments 30, the abutting ends of the adjacent segments 28, 30 being oblique with respect to the radius of the disc 14 to permit differential thermal expansion between the plate, disc and blades. The radially outer periphery of the segments 28, 30 engages in aligned grooves 44 in the blade platforms 22, whereas the inner periphery has castellations 34 engaging behind corresponding castellations 42 in a flange 38 on the disc rim 24. Lock tabs 36 locate the segments circumferentially. The downstream plate 46 is of similar construction except that the inner periphery of the segments is not castellated but engages in a groove 50 between the disc rim 24 and a spacer 20 which is fitted after the blades and plates have been assembled on the disc. A stud 58 locates the downstream plate segments circumferentially.
Patent GB-1276388-A (GB)
Title: Collapsible steering columns
Inventor: WESTON J H
IPC: B62D1/19
Filed: 1969-11-13
Abstract: 1276388 Collapsible steering columns STANDARD TELEPHONES & CABLES Ltd 5 Nov 1970 [13 Nov 1969] 55593/69 Heading B7H A collapsible steering column includes an inner collapsible torque transmitting assembly and a surrounding collapsible non-rotating tube. In one embodiment, Fig. 3, the torque transmitting assembly consists of a helically or transversely corrugated tube 21 connected at one end to the steering wheel 23 and at the other, by a shearable pin 22, to a solid spindle 19 connected to the steering box, and the surrounding tube 24 is transversely corrugated over part of its length and has a vehicle mounting bracket 25. In another embodiment, Fig. 2 (not shown), the spindle 19 is omitted and the inner corrugated tube is connected directly to the steering box. The column is designed so that on collision the bracket breaks from the vehicle and the inner tube starts to collapse before the outer tube.
Patent GB-1445841-A (GB)
Title: Containers for liquid
IPC: B65D88/74
Filed: 1972-12-02
Abstract: 1445841 Heating or cooling liquids in bulk RW PLASTICS & ENG Ltd 16 Nov 1973 [2 Dec 1972] 55778/72 Heading F4S A bulk storage container for liquids comprises an inner cylindrical shell 26 separated from an outer cylindrical shell 28 by an annular chamber in which is a tube coil 30 carrying a heating or cooling fluid, the chamber between the shells around the coil being filled with a synthetic resin compound 29 such as glass fibre resin. Preferably the inner and outer shells are made of a laminate formed of polymerized synthetic resin (e.g. polypropylene) and glass fibre. The tube may be of oval or circular cross-section and of synthetic resin or of metal such as copper or stainless steel. The container may be encircled by a layer of thermal insulating material which itself may be in a shell or skin surrounding the outer shell of the vessel. The container shown has formed therein a stand 22. The container mouth is normally closed by a lid and at the lower end of the container is a normally closed drain hole 34.
Patent GB-1170779-A (GB)
Title: Diazotype Compositions and Materials
IPC: G03C1/58
Filed: 1966-12-13
Abstract: 1,170,779. Diazotype materials and processes. INTERNATIONAL BUSINESS MACHINES CORP. Dec.13, 1966 [Dec. 28, 1965], No.55783/66. Heading G2C. A two-component diazotype composition comprises a diazomium salt and an azo coupler which is lignin or a lignin derivative. The composition may be coated on a support, imagewise exposed and developed to produce a dye image. Alternatively, a diazonium salt is coated on a support e.g. paper which either contains sufficient lignin or is treated so that it contains sufficient lignin to couple the diazomium salt. In a further embodiment, a material containing a diazomium salt is imagewise exposed and developed either with a solution containing lignin or with a support impregnated or coated with lignin. Specified lignin derivatives stated to be couplers are coniferyl aldehyde and syringe-aldehyde.
Patent GB-1208129-A (GB)
Title: New imidazole derivatives, process for their production and compositions containing them
IPC: C07D233/64
Filed: 1967-12-08
Abstract: 1,208,129. Phenyl - imidazole compounds J. R. GEIGY A.G. 8 Dec., 1967 [9 Dec., 1966] No. 55922/67. Heading C2C. Novel compounds of the Formula I where R 1  is phenyl substituted in 2, 3 or 4 position by halogen (preferably fluorine, chlorine or bromine) or methoxy or ethoxy, one of R 2  and R 3  represents CH 3  or C 2 H 5  and the other H, CH 3  or C 2 H 5 , or pharmaceutically acceptable acid addition salts thereof are obtained by desulphurizing or reducing a compound of Formula II where X is -OH or -SH, or a tautomer thereof, and, optionally, converting it into an acid addition salt with an inorganic or organic acid. Where X is -SH in Formula II, the elimination of X is effected by desulphurization of the 1 - aryl - 2 - mercapto - imidazole or corresponding 2 - thiono derivative employing Raney Ni, HNO 3  or H 2 O 2 . Where X is -OH, the elimination of X is effected by reducing the 1 - aryl - 2 - hydroxyimidazoles or corresponding imidazol - 2 - ones with LiAlH 4 . 2,2 - Ethylenedioxypropyl isothiocyanate is obtained by reacting 1 - amino - 2,2 - ethylenedioxypropane with thiophosgene. 5 - Methyl - 1 - (2 - methoxyphenyl) - 2 - mercapto - imidazole is obtained by reacting 2,2 - ethylenedioxypropyl isothiocyanate with o-anisidine. 3 - Methoxyphenylisothiocyanate is obtained by reacting m-anisidine with thiophosgene. 5 - Methyl - 1 - (3 - methoxyphenyl) - 2 - mercaptoimidazole is obtained by reacting 3 - methoxyphenylisocyanate with 1 - amino - 2,2 - ethylenedioxypropane. Pharmaceutical compositions, suitable for treatment of hyperaldosteronism and associated disorders, useful as diuretics and cardiovascular agents, comprise an amount of 0À5- 90% of a compound of Formula I or a pharmaceutically acceptable acid addition salt thereof, and a pharmaceutical carrier in forms suitable for oral or parenteral administration.
Patent GB-1131150-A (GB)
Title: Communication system
IPC: H04L25/45
Filed: 1966-12-20
Abstract: 1,131,150. Staticizing and dynamizing registers. BORG-WARNER CORP. 20 Dec., 1966 [18 Jan., 1966], No. 56971/66. Heading G4C. [Also in Division H4] A serial-parallel converter comprises a plurality of bistable units connected as a shift register. An incoming start pulse which precedes each group of bits starts a clock pulse generator comprising a recirculating delay line. The bits are read in to the register under control of a counter-divider fed by these pulses, which are applied to all stages of the register. When the start pulse reaches the final stage of the register it causes the clock generator to stop. The converter is used in a printing receiver. Received distorted serial data is squared by a clipping arrangement and sampled by clock pulses having a repetition frequency much greater than the bit rate. The resulting signal passes via a transformer to a rectifying circuit which provides the binary signals to the register, the start signal starting the clock as described above. The parallel output of the register feeds a printer. Circuits are provided for detecting end of message and certain function signals, and also for shutting down the system if no signals occur in a given time. By choice of the division factor of the counterdivider various bit rates are accommodated.
Patent GB-1254119-A (GB)
Title: Process of leaching sulfide-containing materials with hot, concetrated sulfuric acid
IPC: C01G1/10
Filed: 1968-12-05
Abstract: 1,254,119. Leaching materials containing metal sulphides. TREADWELL CORP. 5 Dec., 1968 [18 Dec., 1967; 29 Nov., 1968], No. 57775/68. Heading C1A. Materials containing metal sulphides are reacted with hot sulphuric acid at a temperature below 250 C., the reaction proceeding in at least one stage at a temperature above 160 C., heat being supplied to the reaction to maintain the temperature, the sulphuric acid concentration being maintained above 80% for long enough to convert a major amount of the sulphides to the corresponding sulphates and the amount of sulphuric acid being sufficient to react with the metal sulphides but not present in sufficient excess to produce a slurry in the later stages, so that the reaction is effected in substantially solid form. Preferably, water formed in the reaction is removed by evaporation as it is formed. Specified metal sulphates which may be obtained by the process of the invention are copper, lead, zinc, nickel and ferrous sulphates. A preliminary treatment with weaker acid may be used to convert certain sulphides such as lead sulphide, to their sulphates. The uniformity of distribution of reactants in the process of the invention may be improved by providing particles which are large relative to the particles of the sulphides reacted, upon which a coating of reactants is formed, or by forming balls of the feed material, including the acid. The sulphates obtained by the process of the invention may be recovered by conventional procedures such as electrowinning and cyanidation.
Patent GB-1279872-A (GB)
Title: Improvements in hydraulic mortar
IPC: C04B28/02
Filed: 1969-11-28
Abstract: 1279872 Mortars ELSA ZEMENT-UND KALKWERKE AG 28 Nov 1969 [25 April 1969] 58192/69 Heading C1H Mortar comprises, in weight per cent, hydraulic binder 20-65; anhydrous CaCl 2  0À2-6À0; marl containing at least 5% clay 76À8-30; and slightly burnt (defined) and de-acidified cement clinker 3-15.
Patent GB-1116109-A (GB)
Title: Welding apparatus with means for sensing position of weldable fastener
IPC: B23K9/20
Filed: 1966-12-29
Abstract: 1,116,109. Stud - welding apparatus. GREGORY INDUSTRIES Inc. 29 Dec., 1966 [29 Dec., 1965], No. 58195/66. Heading H2H. [Also in Division B3] Stud-welding apparatus of the type wherein the stud is held in contact with the workpiece by means of a welding gun, retracted from the workpiece to form an arc therebetween and then forced into contact with the workpiece again is provided with means for sensing the position of the stud relatively to the workpiece, the sensing means being operative to prevent the initiation of the welding operation unless the stud is held in good physical contact with the workpiece and normal thereto. A stud 22 to be attached to a workpiece is held in a chuck 18 of the welding gun 10, the chuck being retractable from the workpiece by means of a coil 44 and a movable magnetic core 42. The means for sensing the position of the stud relative to the workpiece comprises means for sensing the position of the core 42 in the coil 44 and includes a circuit in shunt with the coil 44 fed from an auxiliary supply 62. When the stud is in the desired position relative to the workpiece the position of the core 42 will give the coil 44 a predetermined inductance which will cause a unijunction transistor U to become conductive thus providing a firing pulse for a silicon controlled rectifier S.C.R. Conduction of this rectifier energizes relay CR2 whereupon contact CR2-1 in the welding control circuit is closed to enable a welding operation to be initiated. Closure of the trigger switch 54 now energizes a relay CR1 by way of the stud 22 and the workpiece. Closure of contact CR1-1 energizes the coil 44 to retract the stud from the workpiece; of contact CR1-2 connects a capacitor C to the stud 22 to provide a pilot arc whilst the stud is being retracted and of contact CR1-3 energizes the welding contactor WC, this contactor being of the slow-acting type. Operation of contactor WC opens contacts WC-2 to de-energize the coil 44 whereupon the stud is forced back into contact with the work by means of a spring 52. Contacts WC-1 close simultaneously thus connecting the capacitor C to the stud in order to supply the main welding current. The charge on the capacitor C is maintained by a voltage regulator VR.
Patent GB-1395270-A (GB)
Title: Liquefaction of low-boiling point gas mixtures
IPC: F25J1/00
Filed: 1973-12-17
Abstract: 1395270 Liquefying gas LINDE AG 17 Dec 1973 [18 Dec 1972 18 April 1973] 58356/73 Heading F4P Liquefaction of a low-boiling point gas in a line 1 is effected by heat exchange at 3, 4 with separate sub-streams of a refrigerant previously compressed and cooled in a closed refrigerant circuit, the first sub-stream being iseutropically expanded at turbine 12 before being warmed in exchanger 4 and the second sub-stream being further cooled in exchanger 13 and partially liquified before being expanded iseuthalpically through throttle 14 and then heated in exchange with the gas to be liquefied at 3. In an alternative embodiment (Fig. 3, not shown), the second substream is passed through a phase separator and valve before being heat-exchanged with the gas to be liquefied. In such a case, the liquid phase can be stored when demand is low to be released later at a time of peak demand.
Patent GB-1184260-A (GB)
Title: Encryption Apparatus
Inventor: FORD ROBERT BROUGH
IPC: G09C1/10
Filed: 1968-12-13
Abstract: 1,184,260. Coding and decoding apparatus. STANDARD TELEPHONES & CABLES Ltd. 13 Dec., 1968, No. 59339/68. Heading G5X. In encryption apparatus ten groups B1 . . . B10 of 26 contacts, say, corresponding to the letters of the alphabet are connected in different permutations to all of five, say, groups BI . . . BV of also 26 contacts corresponding to the letters of the alphabet via a tag block 22. A letter to be encrypted is selected along the groups B1 . . . B10 by wipers W1 . . . W10 fixed to a spindle 21 and a particular contact energized in accordance with a desired permutation order as set by the order of connection between a set of plugs J1 . . . J10 and a set of sockets S1 . . . S10, the sockets S1 . . . S10 being energized cyclically by a programme selector 23 when a signal is applied at 24. At the same time motors MI . . . MV are energized cyclically to drive wipers WI . . . WV over the contacts of the groups of contacts BI . . . BV. When a wiper WI . . . WV makes connection to a contact energized, via the tag block 22, by a signal corresponding to the letter to be encrypted, the motor is stopped by use of a comparator device CI . . . CV and the position of the wiper is representative of the encrypted letter. This letter is then displayed in a display device activated in accordance with the position of the wiper. The encrypted letters are displayed in 5- letter sets and between each set of letters the display devices are cleared and the wipers WI . . . WV reset to " off " positions. For decrypting a coded message a similar apparatus may be used with the permutations P1. . . P10 inversed. Alternatively the same apparatus may be used for both encryption and decryption, the permutations P1 . . . P10 being inverse in pairs and successive sets of five letters operated on alternately by five independent permutations and by their five inverse permutations in the same order. The plugs J1 . . . J10 and sockets S1 . . . S10 are formed as two-pin connectors corresponding to inverse pairs of permutations so that connections may be made without error.
Patent GB-1331998-A (GB)
Title: Air filtering system
IPC: B01D46/00
Filed: 1970-12-22
Abstract: 1331998 Air filtering system DRAGERWERK AG 22 Dec 1970 [24 Dec 1969] 60952/70 Heading BIT An air filtering system comprises an inlet 1 a coarse particle filter 5 and a fine particle filter 6, air being drawn through the filters by fan 7 to outlet 9. A by-pass 11 for filter 5 is fitted, which by-pass is blocked by rigid closing valve 13, which can move from the open to shut position in a time of the order of a fraction of a second. If it is desired to increase the amount of air being passed the fan is speeded up and valve 13 opened to bypass the coarse filter. A gas filter to remove undesired gaseous substances may be fitted downstream of filter 6. Filter 5 could be a cyclone and filter 6 could incorporate gas purifying means.
Patent GB-1187577-A (GB)
Title: Electrodes for Microwave Therapy
Inventor: FRITZ KARL
IPC: A61B18/18
Filed: 1967-03-16
Abstract: 1,187,577. Treating with radiations. K. FRITZ. 16 March, 1967, No. 61187/69. Divided out of 1,187,019. Heading A5R. [Also in Division H4] A microwave radiator device for medical use comprises two cylindrical elements, 1', 1", Fig. 1, which define a resonant cavity I in the form of a short cylinder closed at its lower  end. Power at a wavelength # is is fed by a co-axial cable C to the cavity, which has an axial electrical length of #, although its physi- . 4 cal length may be reduced by filling it with dielectric material. As described, the device is shaped to fit around the eye of a patient, and it is provided with a soft elastic covering or pad 4. The radiation diagram is as indicated by dotted lines R, and to reduce the effects of reflections from the surface of the body a second resonant cavity 3 is arranged inside the cavity 1. In another embodiment (Fig. 2, not shown) a slidable metallic tube is provided inside. The second resonant cavity, which can be moved towards the eyeball to shield it from radiation.
Patent GB-1288098-A (GB)
IPC: C01G43/06
Filed: 1969-12-31
Abstract: 1288098 Isotope enrichment D DEWEZ 31 Dec 1969 [31 Dec 1968] 63584/69 Heading F4P In a process for enriching an element in one of its isotopes a gas containing a gaseous compound of the element is partially solidified, the isotope being preferentially separated between the resulting gaseous and solid phases of the compound. The gaseous compound gas, which may be mixed with a carrier gas, is passed through a compressor 1, cooled in a heat exchanger 2, and expanded in a turbine 3 and the resulting gas and solid phases separated in separator 4. The enriched solid phase is sublimed in a heat exchanger 5, and is added to depleted gas phase from a similar separator unit located in the second rank upstream and is passed into a compressor 1 located in the first rank upstream and the cycle repeated. The depleted gas phase is added to sublimed solid phase from the second rank downstream and the cycle repeated in the first rank downstream. The isotopic concentrations in each of the mixed phases are approximately equal. In other embodiments the feed gas may be cooled solely by heat exchange or expansion, and the enriched phase may be gaseous. Solidification of the compound may occur directly or via the liquid phase, and expansion may take place in one or a plurality of stages.
Patent GB-686427-A (GB)
Abstract: 686,427. Telephone transmission. WESTERN ELECTRIC CO., Inc. Dec. 15, 1950 [June 20, 1950], No. 30648/50. Class 40 (iv). [Also in Groups XL (a) and XL (b)] A telephone system, Fig. 20, comprises a twoway amplifier in the form of a cold cathode gasfilled glow discharge device 30 (see Group XL (a)) having a cathode 34 with juxtaposed faces defining therebetween a cathode gap, and an anode 36 spaced from the nearest parts of the cathode by an anode gap, said cathode and anode gaps and the gas pressure being mutually related so that over a range of values of operating current in the abnormal voltage range the resistive component of the cathode-anode impedance is negative. The discharge device 30 is connected in series between two subscribers' stations S1 and S2 by way of transformers T1 and T2 which isolate the direct operating current of the device from the stations, and may be utilized to adjust the impedance level for optimum amplification. Condensers 52 serve to bypass the speech currents from the ballast resistors 51 connecting the batteries 50 to the electrodes of the device. In another arrangement, Fig. 23, use is made of both the inductive and resistive components of the impedance of a number of devices 30 connected in series in each conductor of a transmission line extending between transformers T3 and T4. The inductance of the devices compensates for the shunting effect of the capacitance between the two line conductors, while the negative resistance of the devices compensates for losses due to the line conductor resistance.