baber/WOPTO huggingface dataset:
Patent GB-426430-A (GB)
Title: Improvements in or relating to winding machines for cables, ropes and the like
IPC: B66D1/20
Filed: 1933-12-09
Abstract: 426,430. Winding-apparatus. WHITE, A. F., Balls Farm, Alphington, Devon. Dec. 9, 1933, No. 34725. [Class 78 (v)] The shaft b to which a winding-drum is secured is driven from a pulley h through a belt g. A jockey pulley o carried by an arm m on a shaft k is moved to tension the belt for transmitting the drive by means of a lever r secured to the shaft which also carries an arm to which a brake block q engaging a pulley f on the shaft b is secured whereby the brake may be released simultaneously with the tensioning of the driving-belt.
Patent GB-1080983-A (GB)
Title: Improvements in or relating to electric switchgear
Inventor: EVANS STANLEY BEDDOE JOHN CEIR
IPC: H02B11/24
Filed: 1964-08-25
Abstract: 1,080,983. Automatic circuit-breakers; switchgear structures. ENGLISH ELECTRIC CO. Ltd. Aug. 25, 1965 [Aug. 25, 1964], No. 34843/64. Heading H2B. Circuit-breaker actuating mechanism includes a rotatable shaft 29, springs 23 to load the shaft in one sense of rotation, a first latch 43 to hold the shaft against rotation, interconnecting means 24, 36, 35, 26 and 27 between the shaft and the movable contact(s) of the circuit-breaker and arranged so that on release of the latch, rotation of the shaft causes the interconnecting means to move the movable contact from the open position to the closed position and disengage when the movable contact has substantially reached the closed position where a further latch, Fig. 3 (not shown), holds the contact member. The shaft 29 may be turned by a lever acting through ratchet - and - pawl mechanism, Fig. 4 (not shown), to tension the springs 23 and is then held by the latch 43 engaging a roller 41 on a cam 24. When a coil 49 is energized, a latch member 45 is turned to release the latch 43 which slides off the roller 41 so that the springs, connected to a pivot 40 on the cam, turn the shaft 29 and the cam 24. The cam acts on a roller 36 to turn the levers 35, 26, 27 to close the circuit-breaker, the operating face 37 of the cam moving past the roller 36 just before the circuit-breaker is fully closed. In the closed position a roller (not shown) carried by the lever 26 is engaged by electromagnetically released latching mechanism to retain the circuit breaker closed against the bias of opening springs, Fig. 7 (not shown). To prevent the release of the latch 43 when the circuit-breaker is already closed, a telescopic spring link 53, 54 biases a pivoted lever 52 against the latch member 45. When the shaft 29 is turned to tension the springs 23, the roller 41 engages an arm 57 of a reset lever 55 and turns the lever so that a pin 59 on the lever pushes the latch 43 into position to reengage the roller.
Patent GB-925599-A (GB)
Title: Improvements in and relating to means for thermostatically controlling the temperature of utensils and the like on electric radiant hot plates or burners
Inventor: WALTON GORDON HERBERT FRANCIS
IPC: H05B1/02
Filed: 1960-10-12
Abstract: 925,599. Temperature-responsive actuating- elements. H. M. C. OF HARTFORD Ltd. Sept. 4, 1961 [Oct. 12, 1960], No. 34977/60. Class 64 (2). In a temperature control arrangement for an electric radiant hot-plate or gas burner wherein a sensing member 1 containing a heat expansible fluid is arranged in a central space of the hotplate structure or burner so as to contact a utensil thereon, the volumetric capacity of member 1 is varied according to the temperature of the ambient air to compensate for variations therein. As shown, a fixed housing 5 supports a bimetallic compensating disc 8 welded to the lower edge of an inverted cup forming part of the member 1 which is closed by a flexible wall secured to an internally bored stem 3 mounted in a central hole in disc 8. A capillary 4 acts as a spring urging member 1 against the underside of a utensil and also connects the member 1 with a tube 6 communicating with the bellows or diaphragm chamber 7 operating the electric switch or gas valve.
Patent GB-1437946-A (GB)
Title: Curing of rubber hose
IPC: B29C35/08
Filed: 1972-07-27
Abstract: 1437946 Curing rubber hose DUNLOP Ltd 18 July 1973 [27 July 1972] 35097/72 Heading B5A [Also in Divisions C3 and F2] Apparatus for the curing of a long length rubber hose having a wire reinforcement structure comprises means for applying a wire reinforcement structure to a length of rubber hose, means for subsequently causing an electrical current to flow in the wire reinforcement structure to heat the wire reinforcement structure and effect at least a partial cure of the rubber and means for applying a covering layer of polymeric material to the wire reinforcement structure while said structure is still hot from the curing operation. As shown in Fig. 1, cooled flexible mandrel 2 passes through extruder 5 which extrudes an unvulcanized rubber liner tube 5a over the mandrel. The covered mandrel passes through a steel wire braiding machine 6, individual wires 7 being passed through a common carrier ring 8 which leads the wires on to cover tube 5a. The braided and covered mandrel is passed through a drawing device 9 having opposing tracks 9a and 9b manufactured of a conductive metal. Electrical connections 10a, 10b from a transformer 11 are made between ring 8 and said tracks. A second extruder 12 is provided for extruding a nylon cover over the braid while hot. The wire braided on the lining is preheated by electrical energy of the current therethrough between ring 8 and tracks 9a and 9b. Alternatively, as illustrated in Fig. 3 (not shown) a cylindrical induction coil is located coaxially around the hose so that an alternating current supplied to said coil induces electrical energy in the braiding.
Patent GB-1350968-A (GB)
Title: Basically substituted alkyl theophyllines
IPC: C07D473/08
Filed: 1971-07-27
Abstract: 1350968 Basic theophylline derivatives DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 27 July 1971 [27 July 1970] 35116/71 Heading C2C Novel compounds of the general Formula II in which R<SP>1</SP> and R<SP>2</SP>, which are the same or different, and are C 1-4  alkyl and one of R<SP>1</SP> and R<SP>2</SP> can also be hydrogen, R<SP>3</SP> is hydrogen, or C 1-4  alkyl and n is 1 or 2, optical and stereoisomers and salts thereof may be prepared by (a) reduction of the keto group of a compound III to a hydroxyl group; (b) condensing a compound IV and compound V wherein one of X and Z is halogen and the other is amino; (c) condensing theophylline or a metal salt thereof with a compound VI wherein Hal is a halogen atom; (d) reductive condensation of compound VII with VIII wherein one of V and W is -C(R<SP>4</SP>) = O and the other is -(R<SP>4</SP>)NH 2  where R<SP>4</SP> is hydrogen or a C 1-4  alkyl and Y is oxygen, or a hydrogen and hydroxyl; (e) reaction of a compound IV in which Z is NH 2  or a protected amino group with a compound IX wherein in any reaction any of the amino and/or phenolic hydroxy groups may be protected during the reaction and either the protective group removed under the conditions of the reaction or subsequently removed. The compounds III may be prepared by a process similar to (b) above wherein Z in IV is benzylamino and in V a keto group replaces hydrogen and hydroxyl on the carbon atom α to the phenyl. 1 - (3,4 - Dibenzyloxyphenyl) - 1 - hydroxy - 2- bromoethane may be prepared by reduction of 1 - (3,4 - dibenzyloxyphenyl) - 1 - oxo - 2 - bromoethane. 7 - (2 - Methyl - 3 - aminopropyl) - theophylline may be prepared by reaction of 7-(2-methyl-3 chloropropyl)-theophylline and ammonia. p - Hydroxyphenylacefylcarbinol may be prepared by hydration of p-hydroxyphenylethynylcarbinol. Pharmaceutical compositions of compounds II show broncholytic activity without tachycardia when administered orally, parenterally or perlingually with the usual excipients.
Patent GB-936043-A (GB)
Title: Improvements in or relating to the treatment of bauxite ores
IPC: C01F7/0613
Filed: 1960-10-13
Abstract: Bauxite containing more than 5% SiO2 (e.g. kaolimite) and more than 20% iron oxide (e.g. haematite) is heated at 500 DEG -650 DEG C., preferably 550 DEG C. and the SiO2 is extracted with NaOH (e.g. 22,5%) solution preferably for 1/2 hour at 90 DEG C. and at atmospheric pressure, e.g. in N2.  The NaOH solution may be regenerated by treatment with lime to precipitate the SiO2 and Al2O3. The heat treatment is carried out in an inert or oxidizing atmosphere which may be followed by a reducing atmosphere, or alternatively, throughout in a reducing atmosphere, preferably H2, reducing the iron oxide in the bauxite to Fe, and which may contain CO and cracked natural gases when reducing conditions are used.  The iron may be extracted as iron pentacarbonyl by treatment with CO for 3 hours or less at or below 100 DEG C. and at or below 50 kg./cm.2. Bauxite may be treated as a fluidized bed in a quartz tube in an electric furnace in an air flow for 2 hours at 550 DEG C., this may be followed by a flow of H2 for 2 hours at 550 DEG C. or the treatment may be wholly with H2.  The heat treated bauxite has a specific surface area of 60 m.2/g. (compared to 10 m.2/g. initially) and is suitable for use in the Beyer process.
Patent GB-449388-A (GB)
Title: Improvements in the manufacture of torsion springs in bar form
IPC: B21F3/02
Filed: 1935-12-19
Abstract: 449,388. Making torsion springs. PORSCHE GES., DR. ING. H.C.F., 24, Kronenstrasse, Stuttgart, Germany. Dec. 19, 1935, No. 35239. Convention date, Dec. 19, 1934. [Classes 83 (ii) and 83 (iv)] [See also Group XXXII] In a method of making torsion springs in bar form, particularly for the wheel suspensions of motor vehicles, a spring bar a of circular section with enlarged ends c is compacted over its whole length including the ends to a depth of about the distance s in order to reduce the possibility of failure of the spring due to surface cracks &c. The compacting is preferably performed by rolling, the bar a being acted upon by smooth rollers rotating about the axis x of the bar and the ends c, which receive the securing means, being acted upon by toothed rollers which produce the securing serrations g. These serrations may have flat flanks and rounded roots and apeces or may have the section shown in Fig. 3, in which case a final drawing operation for sizing the serrations is unnecessary. The ends of the serrations are rounded at d<1>, el. The method may be applied to any tough steel which is subsequently hardened.
Patent GB-1116441-A (GB)
Title: Improvements in or relating to particle accelerator tubes
Inventor: ALLEN WILLIAM DOUGLAS
IPC: H01J5/02
Filed: 1964-08-28
Abstract: 1,116,441. Particle accelerators. SCIENCE RESEARCH COUNCIL. 20 Aug., 1965 [28 Aug., 1964], No. 35425/64. Heading H1D. In a D.C. particle accelerator with planar electrodes disposed perpendicular to the tube axis the inner edges of the electrodes are circumferentially corrugated, as shown, with each electrode rotated about the tube axis by the same angle relative to the previous electrode in order to set up tangential electrostatic fields. These fields have the effect of reducing electron loading while the net tangential deflection of the ion beam is zero, even if varying potentials are inductively picked-up on the electrodes, e.g. from the charge-carrying belt of the electrostatic generator. In an embodiment of the accelerator tube a section with planar electrodes is followed by a section with corrugated electrodes and then by further sections with tilted electrodes as described in Specification 967,963.
Patent GB-1189200-A (GB)
Title: Improvements in or relating to Blast Furnace Taphole Plugs
Inventor: ELBY PIERRE
IPC: C21B7/00
Filed: 1967-08-02
Abstract: 1,189,200. Taphole plug composition. P. ELBY. 2 Aug., 1967 [28 June, 1967], No. 35531/67. Heading CIJ. An anhydrous mass for plugging blast furnace tapholes comprises a refractory charge consisting of at least one refractory clay and silica, which contains alumina in a quantity less than that which would produce an eutectic mixture with the silica, and a binder which includes tar and a thermosetting material which is heat-stable at 200 C. The Al 2 O 3  content is preferably less than 4%. The thermosetting material may be a phenoplast or an aminoplast. In the examples, phenolic resins are used in conjunction with polyvinylchloride, benzyl alcohol and tricresylphosphate as setting retarders.
Patent GB-836381-A (GB)
Title: Improvements in or relating to multiple cam control systems
IPC: G05G21/00
Filed: 1957-11-15
Abstract: 836,381. Cam mechanisms. JANSEN G.m.b.H., T. Nov. 15, 1957 [Nov. 19, 1956]; No. 35605/57. Class 80 (3). [Also in Group XIII] In a multiple cam-control mechanism, particularly for controlling the operation through fluid-pressure or electric relays of the valves of Cowper stoves in a blast furnace installation an interlock mechanism is provided between the individual cam mechanisms so as to insure that all the valves are not in the same position at one time. Cams or groups of cams 4a, 4b, 4c, Fig. 1, are provided on concentric shafts 1, 2 and 3 for operation by levers 7, 6 and 5 respectively. The cams 4a, 4b, 4c co-operate with followers 26, Fig. 5, to actuate at the end C fluidpressure valves or electric switches to effect a control operation. Associated with each cam is an auxiliary cam 15 co-operating with a follower 24. All the followers 26 and 24 are pivotally supported on a shaft 27 which forms an interlocking member for all the separate cams. Adjacent each follower 24 there is secured to the shaft 27 a lever 29 which co-operates with a stop extension 28 on each follower 24. The levers 29 and shaft 27 are urged in a direction B by springs 30, Fig. 4a, which also move through levers 32, stop members 31 into engagement with locking discs 16 associated with the auxiliary cams 15. The cam projections of the auxiliary cams 15 are made of less peripheral extent than those of the main cams 4a, 4b, 4c. When any one of the followers 24 is on the top of its cam projection the interlocking shaft 27 is rocked through a stop 28 and lever 29 to release all the locking members 31. If the other followers are off their cam projections and operation of the remaining cam device is attempted then, owing to the smaller extent of the cam projection of the auxiliary cam, the follower 24 moves off first and releases lever 29 so that the associated locking member 31 becomes effective to engage its locking disc 16 to prevent further movement of the main cam 4a and actuation of its follower 26.
Patent GB-1500157-A (GB)
Title: Gas generator construction
IPC: B60R21/26
Filed: 1975-08-29
Abstract: 1500157 Combustion gas generators for inflatable devices NISSAN MOTOR CO Ltd 29 Aug 1975 [30 Aug 1974] 35694/75 Heading F1L The invention relates to a combustion gas generator for use with an inflatable container such as a safety cushion of a vehicle, an inflatable lifeboat or an inflatable escape shoot for an aircraft. The gas generator comprises a casing 12 having a plurality of openings 18 formed in the wall thereof, a porous partition 20 being disposed within the casing so as to define a combustion chamber 22 and a cooling chamber 30. A pyrotechnic gas generating material 24 and an ignition device 26 are located within the combustion chamber, and a cooling material 32 is disposed within the cooling chamber. The porous partition 20 is formed either from mesh screen or from sintered porous ceramic. A second porous partition 28 is disposed adjacent the inner surface of the wall of the container formed with openings 18, this partition also being formed of mesh screen or sintered porous ceramic. In Fig. 2 the combustion chamber 22' is defined at the lower part of the casing by means of a partition 20' in the form of a disc, the gas discharge openings 18' being formed in the closure 14' of the container, a partition 28' being disposed adjacent the inner surface of the closure 14' and defining with the partition 20' a cooling chamber 30'. The gas generating material 24 may be a mixture of sodium azide and potassium perchlorate; the cooling material may be iron, aluminium, alumina or magnesia. The mesh screen may be a woven mesh, a spiral mesh, a knitted mesh or expanded metal, the material being either iron, tungsten, stainless steel or plastics.
Patent GB-767409-A (GB)
Title: Improvements in or relating to the production of ketones
Inventor: ELLIOTT WARRAN WILLS
IPC: C07C49/08
Filed: 1953-12-23
Abstract: Olefines containing at least 3 carbon atoms are converted into ketones containing the corresponding number of carbon atoms by reacting the olefines with water wholly or partly in the vapour phase under a pressure of 5 to 1000 atmos. gauge and at 200 DEG  to 400 DEG C., in the presence of a solid catalyst comprising at most 10 per cent by weight of a hydrogenating metal from Group IB or VIII of the Periodic Table, supported on a substantially water-insoluble solid hydration catalyst comprising an electronic insulator or semi-conductor material, the terms "insulator" and "semi-conductor" being used in the senses given in the Journal of the Chemical Society, 1950, at page 242 et seq.  Preferred hydrogenating metals are platinum and palladium; nickel and copper are also mentioned. The supports for the metal catalysts may be gamma - alumina, alumina - silica, alumina-zirconia, thoria, cadmium and zinc phosphates and the crystalline phosphates of the alkaline earth metals, all of which are best suited for use in the absence of liquid water, and tungsta, molybdena and titania.  In general, water : olefine ratios of 1 : 2 to 20 : 1 are employed. Temperatures preferably do not exceed 350 DEG C.  In an example, propylene is reacted with water at 270 DEG  C. under 250 atmos. gauge pressure using a pelleted catalyst of 5 per cent platinum on tungstic acid yielding acetone together with some isopropanol which is recycled with unchanged propylene.  Another catalyst mentioned is 2 per cent Pt on gammaalumina or tungstic acid. Other starting materials mentioned are aliphatic olefines having up to 6 carbon atoms, e.g. butene-1, and cycloaliphatic ketones such as cyclopentene and cyclohexene.  Specification 335,551, [Class 2 (iii)], is referred to.  According to the Provisional Specification, elevated temperatures and pressures generally may be used.ALSO:Solid catalysts for use in converting olefines into ketones of the same carbon content by reaction with water (see Group IV(b)) comprise at most 10 per cent by weight of a hydrogenating metal from Group I(b) or VIII of the Periodic Table supported on a substantially water-insoluble solid hydration catalyst comprising an electronic insulator or semi-conductor material, the terms "insulator" and "semi-conductor" being used in the senses given in the Journal of the Chemical Society, 1950, at page 242 et seq. Specified hydrogenating metals are platinum, palladium, nickel and copper.  The supports for the metals may be gamma-alumina, aluminasilica, alumina-zirconia, thoria, cadmium and zinc phosphates, the crystalline phosphates of the alkaline earth metals, tungsta, molybdena and titania.  Specified catalysts are platinum (2 or 5 per cent) on tungstic acid as gamma-alumina.  A suitable catalyst may be prepared by impregnating tungstic acid powder with chloroplatinic acid solution, pelleting at 40 or more tons/sq. in. pressure and then igniting in air or hydrogen at 300-400 DEG C.  Specification 335,551 [Class 1(i)] is referred to.
Patent GB-399170-A (GB)
Title: Improvements relating to electrically operated die casting machines
IPC: B22D17/30
Filed: 1931-12-29
Abstract: 399,170. Casting-machines. RICHARDS, D., Woodfield, Luddenden Foot, Yorkshire. Dec. 29, 1931, No. 35857. [Class 83 (i).] Clamping moulds.-An electrically operated casting machine has a container F, for transferring molten metal from the pot G to a die, which is completely sealed during the transfer. A solenoid D is first operated to close a die carrier A on a fixed water-cooled die-carrier B this movement acting, through linkwork a<1>, a<3>, a<6>, e, and e<1> to withdraw the core of a solenoid E to the right. To this core is attached a rod c pivoted at c<2> to a lever c<4> which carries a pawl c<6> thus moved idly over a single tooth c<6> connected to a lever c<8> which like the lever c<4> turns about a fixed axis c<5>. A projection f<2> on the pivot c<2> also engages a stop f<3> on a bar f which is thus moved axially and by linkwork f<4> .. f7 moves the container F, Fig. 8, which has been filled from the pot G, down into alignment with a tube b, leading to the die, and a plunger C which is then moved by a solenoid C<1>, Fig. 1, to force the metal into the die. The container is aligned by a spring pin j<5> released from a catch j<2> by an adjustable stop J. The solenoid E is then operated to open the die, the rod c causing the pawl c<6> to engage the tooth c<7> and by linkwork c<9>, c<10> return the plunger C and withdraw the pin j<5>, the pawl being tripped by an adjustable stop c<14> when these movements are completed. At the same time the projection f<2> engages a stop f<1> on the bar f to move this to the left and thus elevate the container F to its original position. A closing plate f<14> is arrested, during the downward movement of the container F, by engaging the tube b and is returned, when the container rises, by engaging a fixed stop b<2>. Adjusting screws d, d<2> and hand operated means k for closing the die are provided. The switches for operating the solenoids may be moved by hand or, in sequence, by cams. The carrier A may move in a circular path. The solenoids may be replaced by pneumatic or hydraulic cylinders. Electricity, heating by.-The container F may be hated electrically.
Patent GB-1062797-A (GB)
Title: Improvements relating to electric suetion cleaners
IPC: A47L5/22
Filed: 1964-09-02
Abstract: 1,062,797. Suction cleaners. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Sept. 2, 1964 [Sept. 2, 1963], No. 35937/64. Heading A4F. A suction cleaner comprises two suction fans 16, 17 mounted in separate chambers at opposite ends of a common driving motor 15, dust laden air drawn in at the suction nozzle 14 by the fan 17 being passed through a duct 20 to the fan 16 which passes it to a dust bag 12. The illustrated cleaner is of the hand held type and has an elongated handle, the duct 20 also serving as a carrying handle. In another construction (Fig. 1, not shown) the duct connecting the fan chambers is of helical form and air passing therethrough cools the motor casing. A further embodiment (Fig. 3, not shown) is mounted on wheels and has a driving motor (25) arranged with its rotor shaft at right angles to the elongated operating handle (23) of the cleaner.
Patent GB-353362-A (GB)
Title: Improvements in electric vibrating contact rectifiers
IPC: H02M7/36
Filed: 1930-11-29
Abstract: 353,362. Electromagnetic interrupters. MARIANVALLE, A., 22, Route de Montrouge, Malakoff, Seine, France. Nov. 29, 1930, No. 36028. Convention date, Dec. 9, 1929. [Class 38 (v).] A vibrating blade rectifier has a soft iron blade 2 within a glass vessel 1 filled with an inert or reducing gas, the blade terminating in a downturned point 8 adapted to contact intermittently with a mercury globule 1a contained within a pocket or enlargement formed within the tube. The tube is surrounded by an electromagnet 3 fed by A.C., a polarizing flux being produced by a permanent magnet 4 secured to one end of the electromagnet. The vibrating blade is formed from a strip 4 carried by a platinite wire 4a, Fig. 6, sealed through the tube at one end, the inner end of the wire being held between bent-over portions of a holder 4b which is clamped as shown to the iron strip 4. The contacting point 8 is arranged to engage the globule 1a at one side so that by clockwise rotation of the disc 5 carrying the complete apparatus the contact point may be made to approach nearer the surface of the mercury.