baber/WOPTO huggingface dataset:
Patent GB-995312-A (GB)
Title: Guanidine compounds and methods for their production
Filed: 1963-11-22
Abstract: The invention comprises compounds of the general formula <FORM:0995312/C2/1> and acid addition salts thereof, where R represents a cyclo alkyl group, a C1- 3 alkyl cyclo alkyl group or a C1- 3 alkoxy cyclo alkyl group (the alkyl group containing 3-8 carbon atoms); n is 0 or 1, and A is a C2- 4 alkylene radical separating the groups by at least 2 carbon atoms.  The compounds are prepared by reacting an amine <FORM:0995312/C2/2> either with a salt of a guanidine Z-C(NH)NH2 where Z is an easily displaceable residue under the conditions of the reaction, or with cyanamide or dicyandiamide. Compounds of formula (I) are prepared by reduction of the corresponding nitrile or, where R is cyclohexyl, by hydrogenation of the corresponding phenyl derivative.  Compounds R.(CH2)n-O-B-CN, where B is ethylene are prepared from acrylonitrile and an alcohol R.(CH2)2OH or where B is C2- 3 alkylene by reacting a metal alcoholate R-(CH2)n-O-M+ where M+ is an alkali metal with an alkylene dihalide and reacting the halo-ether with a metal cyanide. Pharmaceutical compositions comprise the guanidines of the invention in association with one or more pharmaceutical diluents and/or excipients.  The compositions, which may be in the form of tablets, pills, sachets, packaged powders, encapsulated powders, solutions or suspensions for oral or parenteral administration, are antihypertensive agents.
Patent GB-1385417-A (GB)
Title: Spar-type buoy for maritime navigation
IPC: B63B22/18
Filed: 1972-10-11
Abstract: 1385417 Buoys RESINEX SaS 11 Oct 1972 [29 Feb 1972] 46818/72 Heading B7A A buoy comprises a support 1 having a float 2 of resilient plastics material fixed at an upper extremity and a universal joint unit 3 connecting a lower extremity to a sinker 4. In a preferred embodiment the support 1 is a tapered tube having its extremities sealed for buoyancy and the joint 3 comprises interlinked U-shaped members 5, 5<SP>1</SP> fixed to the support and sinker respectively. In a modification the joint 3 comprises a threaded ball member 9 fixed by nuts 6<SP>1</SP> to a plate 7 attached by anchoring means 8 to the sinker 4. The ball member 9 is seated in a member 12 welded to the tube 1 and fixed to a flange 11 by bolts 13. Gaskets 15 provide a water-tight connection between the ball member 9 and the support and sinker respectively.
Patent GB-1162694-A (GB)
Title: Improvements in Fuel Injection Pumps for Internal Combustion Engines
IPC: H01Q19/17
Filed: 1966-10-20
Abstract: 1,162,694. Fuel injection pumps; starting fuel injection engines. ROBERT BOSCH G.m.b.H. Oct. 20, 1966 [Oct. 21, 1965], 5 No. 46976/66. Headings F1A and F1B. In a fuel injection pump having a spill passage 14, 16 controlled by a spool valve 13 operated hydraulically by an auxiliary piston 5, a device 20 for adjusting the stroke of the spool valve between an initial position and a position in which it opens the spill passage and a throttle 25 for regulating the flow of fuel through a passage 23 from the spool cylinder 15 are connected together by a mechanical coupling 26, 32, 28. The coupling 26, 32, 28 is such that when the device 20 is set to provide high injection pump output the throttle 25 is in its position of maximum flow crosssection and when the device is set to provide a low output the throttle cross-section is reduced or zero. The throttle sets the pump speed at which "hydraulic stop" of the spool valve 13 occurs and therefore the maximum speed of an engine supplied by the injection pump is reduced when the device 20 is set to provide a low output. In a further embodiment, Figs. 2 and 3 (not shown), the spool valve (13) has an inclined control edge (33) and is angularly adjustable to vary the spool stroke between the initial and spill passage opening positions. The flow cross-section of the adjustable throttle (24) is varied by an angularly adjustable valve member (40) having an inclined control edge (39). The spool valve (13) and the valve member (40) are connected by toothed segments (41, 42) with a backlash preventing spring (47). An overflow passage (48) from the spool cylinder (15), opened after a predetermined movement of the spool valve from its initial position, is controlled by a further throttle (50) in the angularly adjustable valve member (40). In another embodiment, Fig. 4 (not shown), a leakage passage (52), containing a preset throttle (53), is provided from the spool cylinder (15) and controlled by an angularly adjustable valve (56). The leakage passage (52) is open at low pump speeds and provides excess fuel for starting by allowing fuel from the auxiliary piston (5) to escape. The angularly adjustable spool valve (13) may be adjusted so that a groove (58) therein registers with the spill passage (14, 16) and stops pump delivery.
Patent GB-1162216-A (GB)
Title: Improvements in or relating to a Device for Controlling Thread Tension
IPC: B24B33/08
Filed: 1966-10-20
Abstract: 1,162,216. Yarn-tensioning device; knitting. HEBERLEIN & CO. A. G. 20 Oct., 1966 [26 Nov., 1965], No. 47086/66. Headings D1C and DID. The tension in a yarn in a twister, cover, creel or knitting machine is adjusted and regulated by a device comprising a carrier 1 having a guide 2 for the yarn a brake plate 3 supported on the guide and a loaded threadguide element 8 movably mounted in the carrier. As shown, the yarn passes between the brake plate 3 and an annular guide 2 with rounded edges, the guides being mounted in a carrier 1 and the plate being loaded by a weight 5. Slidably mounted in a bore in the carrier is a thread guide element 8. This comprises a rounded thread-guiding surface 6 and, spaced from this surface, a depending member 13 carrying an exchangable weight 14, while a post 10 extends from the surace 6 through the plate and weight 5 and terminates in a stop 11. The weight 14 is connected by a screw 16 which engages the upper end of a slot 17 in the carrier to limit upward movement of the element. Yarn is threaded between the guide 2 and the plate 3 and the element is raised so that the yarn can be trained around the surface 6 through a slot (12, Fig. 3, not shown) in the element. When the element is 'released and falls the yarn is tensioned according to the load exerted by the plate, weight and element 8. When the tension falls, the element descends, until when a certain value is reached, the stop is drawn against the plate 3 which is then additionally loaded by the weight of the element 8. When the tension rises the element is lifted, until when a certain value is reached, a flat part 7 of the surface 8 engages the plate and lifts it off the yarn. When the using machine stops, the element falls and loads the plate and the length of yarn between the machine and the device remains under tension. In another form, the post 10 is dispensed with and the depending member 13 acts as a piston to apply a greater or less degree of suction to the plate 3. (Fig. 5, not shown). The member 13 may be loaded by a spring or magnetically and the internal passages in the carrier may be polygonal. More than one device as described can be provided in series in a single carrier.
Patent GB-1121112-A (GB)
Title: Process for the production of dichloro-pyrazines
Inventor: COLLINS KENNETH HENRY
Filed: 1965-11-09
Abstract: A process for the preparation of 2,3- and/or 2,6-dichloropyrazine comprises reacting at least stoichiometric amounts of chlorine with 2-chloropyrazine in a polar, organic, watermiscible solvent, particularly dimethyl formamide. Chlorination is normally effected by passing chlorine gas into the reaction mixture, although some or all of the chlorine may be added as sulphuryl chloride, which also acts as a dehydrating agent.
Patent GB-995954-A (GB)
Title: Concentrated solutions of auramine dyes
Inventor: SCHUBERT FRITZ
IPC: C09B69/06
Filed: 1963-12-03
Abstract: The invention comprises concentrated solutions containing 20% to 60% by weight of a salt of the auramine base of Auramine O or Auramine G with sulphuric acid or a water-soluble derivative thereof namely sulphamic acid, chlorosulphonic acid or a monoester of sulphuric acid such as monomethyl sulphate or monoethyl sulphate, in a possibly water-containing organic solvent which is miscible with water in all proportions, which is liquid at room temperature and which has a boiling point higher than 80 DEG  C. Other water-miscible solvents which boil at less than 80 DEG C. may also be present.  The invention also comprises a process for making auramine sulphates by treating an auramine base in an organic solvent with a water-soluble hydrogen sulphate or with sulphuric acid and a compound capable of forming a water-soluble hydrogen sulphate with sulphuric acid.  The concentrated solutions mentioned above are made by dissolving an auramine sulphate in the water-miscible solvent or by reacting the sulphuric acid or acid derivative with the auramine base in the water-miscible solvent or in a non-polar solvent which is immiscible with the water-miscible solvent, then adding the water-miscible solvent to dissolve the product and separating the solvents.
Patent GB-1085636-A (GB)
Title: Feed mechanism for presses
IPC: B30B15/30
Filed: 1964-11-24
Abstract: 1,085,636. Metal marking presses. L. DYCHE. Feb. 16,1966 [Nov. 24, 1964], No. 47706/64. Heading B3H. [Also in Division B5] In press feed mechanism of the kind described in Specification 861,186, lifting of the feed member after depositing the workpiece in the lower die actuates a first trip device which then causes the return of the feed member to its loading position and during this return the feed member actuates a second trip device to cause operation of the press. The mechanism is generally similar to that described in Specification 861,186 except that it is self-powered. Feed member 14 has an aperture or recess 15 for receiving the workpiece on a platform (18), Fig. 2 (not shown), and is reciprocated linearly through linkage (22), (23) by a double-acting compressed air motor 19. Universal adjustment of the member 14 is provided by slotted angles 16, 17. Member 14 is pivoted to lugs 11 on a slide 13 and is lifted rom its position above the die by a single-acting air motor (27), Fig. 3 (not shown). This movement actuates a pilot valve (45) controlling servo-valve (26) which energized motor 19 to effect the return movement of the feed member. During this movement a cam 33a actuates pilot valve 33 to energize the clutch-operating cylinder (34) of the press crank-shaft. When the feed member reaches its loading position, pilot valve (28), Fig. 2 (not shown), is actuated to de-energize the lifting motor (27) and permit the feed member to fall. Pilot-valve (28) is actuated automatically by abutments (40), (41) corresponding to the extreme positions of the feed member. Safety means such as (46), (47), (49) actuated from the press crankshaft, ensure that the feed member 14 is always withdrawn when the press clutch is energized. The workpieces may be fed from a magazine or blanked out of strip material; they may be cup shaped or flat discs. In a further embodiment the leading edge of the feed member 14 may be shaped to additionally push a workpiece from a first to a second disc.
Patent GB-1405960-A (GB)
Title: Hand drying appliances
IPC: A47K10/44
Filed: 1972-10-17
Abstract: 1405960 Article dispensing apparatus WARMEX Ltd and A GOLDSTEIN 17 Oct 1972 47712/72 Addition to 1308432 Heading A4T The invention relates to a hand drying appliance having a hot air blower as set forth in Specification 1308432 in which, between the rotatable drive 10 and the pivotable scoop 7 for delivering the bottom towel from a stack T through housing slot 6, the twopart linkage 11 is inter-connected via a spring- loaded piston 25 whereby the linkage may collapse longitudinally if the scoop encounters an obstruction. Slot 6 is normally closed by a spring-loaded hinged flap 21 and the scoop 7 is provided with a secondary discharge plate 23 above and with its leading edge forward the scoop leading edge.
Patent GB-1097038-A (GB)
Title: Improvements relating to jet-propulsion motors
Inventor: DOXEY BRIAN CECIL
IPC: F02K9/90
Filed: 1963-04-03
Abstract: 1,097,038. Thrust vectoring apparatus. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Dec. 1, 1964 [Dec. 3, 1963], No. 47722/63. Heading B7G. A jet propulsion engine (a rocket motor, as described) has, immediately behind its discharge nozzle 2, a jet deflector comprising a plate 10 with a central aperture coaxial with the discharge nozzle when in the neutral position. The deflector plate is restrained by a number of parallel flexible wires 12 extending forwards from the plate to anchorages on the motor. The plate is also movable laterally with respect to the nozzle to deflect the jet by two pairs of diametrically opposed electromagnets 36 acting through bell-cranks 42, links 22 and a ring 24 brazed to the plate. The electromagnets of each pair are energized alternately, e.g. at 20 cycles/ sec., and the mean position of the plate, and hence the mean direction of the thrust vector, is varied by varying relatively the times the electromagnets are energized. This may be done by feeding a triangular signal (70c, Fig. 6A, not shown) and a bias current (D1) to a bi-stable device which has square-wave outputs (70a and 70b) to be supplied to opposed electromagnets, and the relative periods of energization is varied by varying the bias current (D1). Each electromagnet has a switch operated by a screw 60 on the armature 40 engaging an actuator 62 to introduce a resistor into its circuit to reduce the current when the armature reaches the solenoid. A heat shield 28, made for example of molybdenum, is provided, and the deflector plate may be made of molybdenum or tungsten. In another embodiment (Fig. 8, not shown), the deflector plate (86) is made of, or attached to magnetic material and is disposed between polepieces (84), on which solenoids (80) are mounted.
Patent GB-477498-A (GB)
Abstract: 477,498. Valves. HORSTMANN, J. H. G., andHORSTMANN GEAR CO., Ltd. Feb. 25, 1937, No. 5680. [Class 135] [Also in Group XI] A gas-lighter comprises an igniting gas burner controlled by a main valve 2, operated by a press stud 14, trigger or other manually-operable means and by a preferably slid. ing gravity - actuated valve 10 which is completely or substantially closed when the burner is pointed upwardly.
Patent GB-1015880-A (GB)
Title: High speed dough mixing machine
IPC: A21C1/06
Filed: 1964-11-24
Abstract: 1,015,880. Dough mixers. J. M<SP>c</SP>KEOGH. Nov. 24, 1964, No. 47821/64. Heading B1C. A dough mixer has a stationary drum 1 having pockets 10 in its cylindrical wall; dough is pressed by two revolving beaters 7 against the walls 11 and stretched as it is pulled from the pockets. The shaft 2 also carries a knife 8 interdigitating with two fixed knife guides 9. There are inward projections 15 in the drum end walls.
Patent GB-1150456-A (GB)
Title: Improvements in or relating to Overhead Travelling Cranes and Runway Telphers
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66C9/14
Filed: 1966-10-25
Abstract: 1,150,456. Overhead cranes. GEO. W. KING Ltd. 19 Oct., 1967 [25 Oct., 1966], No. 47925/66. Heading B7H. [Also in Division H2] An overhead crane or runway telpher incorporating a wheeled carriage 10 constructed to travel along a fixed track 12 is driven by at least one induction motor which comprises a rectilinear stator unit 14 mounted on the carriage and a metal disc rotor 15 drivingly connected to a carriage supporting wheel 11. Instead of the direct connection shown, the rotor may be fixed to the wheel shaft (16), Fig. 2, or to a separate shaft (19) geared to the wheel or wheels Fig. 4. The motor speed may be varied by adjusting the stator unit radially of the rotor.
Patent GB-1517328-A (GB)
Title: Cardiac pacer devices
IPC: A61N1/365
Filed: 1975-11-21
Abstract: 1517328 Cardiac pacers VITATRON MEDICAL BV 21 Nov 1975 47935/75 Heading A5R A demand type cardiac pacer includes means for detecting the occurrence of natural heartbeats and inhibiting the delivery of stimulus signals when they are detected, means for delivering stimulus signals over a range of rates including a predetermined normal rate, and means for reducing the rate of stimulus signals within a predetermined range below the normal rate for a plurality of delivered stimulus signals, so that natural heartbeats at a rate lower than the normal rate can be searched for and detected. In a circuit comprising a clock generator 10 and a counter 12 which produces stimulating pulses at a normal rate of 70 p.p.m. at the pacer electrodes, a counter 14 connected to the generator provides an input to a multivibrator 15, when it has counted 60 normal pulses to initiate the search period. The multivibrator 15 is thus rendered unstable and causes gate 17 to block pulses from the generator 12 and transmits multivibrator pulses via a gate 16 and a delay 18 to the pacer electrodes by way of gates 19, 20. The delay is such that two pulses at a rate of 52 p.p.m. reach the pacer electrodes, each pulse resetting the counter 12. Then, the multivibrator changes its state and ends the search period and in the absence of a detected heartbeat, pulses are supplied by the counter 12 to the heart at the normal rate. A detected heartbeat faster than the normal rate causes the counter 12 to be reset and continue. A natural heartbeat in the range 54-70 p.p.m. causes clock pulses to be fed to a counter 22 which counts at a rate of 52 p.p.m. and continually resets the counter 22. If there is no natural beat in the range 54-70 p.p.m. two stimulus pulses are generated but the gate 11 is enabled and the gate 12 disenabled thus reconnecting the counter 12 for normal operation. In an alternative analog circuit, the periodic searching is carried out every 5 minutes as determined by a counter (32), Fig. 2 (not shown) while stimulating signals are generated at a frequency below the normal rate but determined by a function generator (34). The function generator (34) may reduce the frequency linearly from 70 p.p.m. to 54 p.p.m. and back again over a period of 20 seconds as determined by a circuit (33). The programmed search is terminated by a natural heartbeat which resets the normal signal counter (31) and the 5 minute counter (32). A heartbeat in the range 54-70 p.p.m. resets a counter 42 but subsequent absence of such a heartbeat causes the counter (31) to supply normal rate pulses to the electrodes.
Patent GB-1038470-A (GB)
Title: A process of producing polyoxymethylenes with high molecular weights
IPC: C08G2/00
Filed: 1964-12-01
Abstract: Low molecular weight polyoxymethylene is heated at 50 DEG  to 200 DEG C. in a closed system to denature it in the presence of one or more of: (A) compounds of formula <FORM:1038470/C3/1> wherein X1 is R1, R1O, R1NH, R1R2N and Y1 is <FORM:1038470/C3/2> R1 and R2 being the same or different and being an alkyl, aryl or aralkyl group which groups may carry one or more organic functional groups containing one or more of the elements Cl, N, O and S and X1 and Y1 may mutually form a ring: (B) compounds of formula <FORM:1038470/C3/3> wherein X2 is R1-, R2O- and Y2 is -OH, -OR3 or <FORM:1038470/C3/4> where X2 is R1-, or is -OR5 or halogen when X2 is R2O-; R1, R2, R3 and R5 being the same or different and each bearing an alkyl, aryl or aralkyl group, which groups may carry one or more organic functional groups comprising one or more of the elements H, Cl, N, O, S and C and R4 being an aryl group which may carry a functional group(s) as aforesaid; provided that where Y2 is <FORM:1038470/C3/5> R1 and R4 are the same and where Y2 is halogen, R2 is not an aryl group or an aryl group carrying a functional group as aforesaid, and X2 and Y2 may mutually form a ring.  The heating may take place in an inert organic solvent at 80 DEG  to 160 DEG  C. for half-an-hour to 24 hours. Long lists of catalysts are given-those used in the examples are ethyl m-dinitrobenzene sulphonate, diethyl sulphate, p-chlorosulphinic acid, o-sulphobenzoic anhydride, benzen-sulphinic anhydride, methyl - p - toluenesulphonate, benzyl-p - chloro - benzene sulphonate, ethyltoluenethiosulphonate toluenesulphinic acid, benzene-sulphinyl chloride, ethanesulphonic acid, dimethyl sulphite and p-aminobenzenesulphonic acid.  The denatured product may be pyrolysed at 80 DEG  to 300 DEG  C. to give formaldehyde which is then polymerized.
Patent GB-1163052-A (GB)
Title: Improvements in or relating to Knitting Machines.
IPC: D04B15/78
Filed: 1966-11-02
Abstract: 1,163,052. Knitting-machines. UNIVERSAL MASCHINENFABRIK DR. RUDOLF SCHIEBER G.m.b.H. 2 Nov., 1966 [2 Nov, 1965], No. 49056/66. Heading D1C. In an electromagnetic needle selection arrangement in which each needle has an associated magnet a spring serving as an armature controls the needle via an intermediate member. In one embodiment. Fig. 2 of a flat machine, each needle 2 is controlled by a jack 3 whose butt 5 is pushed into the bed by a cam 12 as it approaches the magnet 18. The armature spring 14 is similarly forced against the magnet poles by cam 13. If the magnet is energised the spring 14, on its release by cam 13, is disengaged from a spring 4 which pushes butt 5, on its release by cam 12, into the range of a rise cam 10, Fig. 1 (not shown). If spring 14 remains in its position shown spring 4 remains depressed and butt 5 is not actuated by cam (20). Selections may be made to bring the needle into knitting or tucking tracks. For increased spacing several staggered cams 13 are arranged one above the other To prevent lateral pressure, plates (43, Fig. 9 not shown) resiliently mounted on a wheel (42) can be used to press the springs 14. In the embodiment of Fig. 3 (not shown) which is also applicable to circular machines, the jacks are lifted by spring urged levers (38) unless prevented by springs 14 unselected by the magnets. In the embodiment of Fig. 6 the needles 2 are moved by separate cam discs 31 through cranked levers 32 unless prevented by depending arms 33 controlled by spring armatures 14 of electromagnets 18. The arms 33 are held down to prevent movement by unselected springs 14.
Patent GB-1429204-A (GB)
Title: Method of detecting leaks especially in vacuum plants
IPC: G01M3/20
Filed: 1973-10-22
Abstract: 1429204 Detecting leaks HOCHVAKUUM DRESDEN VEB 22 Oct 1973 [25 Oct 1972] 49132/73 Heading G1N An air leak in a vacuum plant is detected by the penetration of a test medium which is absorbed by or forms a condensate on a resistance sensor to vary its resistance. The sensor comprises a quartz base 1 Fig. 2, preferably with a semiconductor layer 5, and may be mounted on a Peltier element 7 Fig. 3 whereby the temperature of the sensor can be lowered to allow the test medium to condense, or raised to evaporate the condensate and regenerate the sensor. The test medium may be alcohol or water vapour or another specified gas.
Patent GB-1458532-A (GB)
Title: Gas turbine engines
IPC: F01D21/04
Filed: 1973-10-24
Abstract: 1458532 Gas turbine ducted fan engines ROLLS-ROYCE (1971) Ltd 7 Nov 1974 [24 Oct 1973] 49445/73 Heading F1J [Also in Division F2] A fan rotor 23 of a gas turbine engine is driven by a shaft 19 through first and second mounting structures, the first including a frangible drive connection, such as dowels or bolts 24, and the second including a transversely-flexible support 25, 26 and a torsionally stiff drive, such as a bellows 31, which is capable of continuing the drive until the engine can be closed down in the event of fracture of the frangible drive connection when excessive transverse loads occur due to unbalance caused by a broken fan blade.
Patent GB-1469264-A (GB)
Title: Cleaning solvents containing 1,1,2-trichloro-1,2,3-trifluoro ethane
IPC: C11D7/50
Filed: 1974-11-15
Abstract: 1469264 Solvent compositions E I DU PONT DE NEMOURS & CO 15 Nov 1974 [16 Nov 1973] 49519/74 Heading C5D A solvent composition for cleaning articles, such as printed circuit boards contaminated with soldering flux comprises an azeotropic mixture of 1,1,2 - trichloro - 1,2,2 - trifluoroethane (A), ethanol (B) and nitromethane (C) which contains 95À3% (A) 3À6% (B) and 1À1% by wt. of (C).