baber/WOPTO huggingface dataset:
Patent GB-1347211-A (GB)
Title: Control systems for starting electrically driven vehicles
IPC: B60L15/04
Filed: 1972-02-08
Abstract: 1347211 Control of D.C. motors MATRAL SA 8 Feb 1972 [9 Feb 1971] 5852/72 Heading H2J A D.C. series motor 1 for an electricallydriven vehicle is started by closure of switches 7, 8 or 9, 10 to connect it to either battery 5 or 6, a further switching arrangement being provided so that the selection of one battery for the starting operation ensures the automatic selection of the other battery for the next starting operation, the discharge of the batteries thus being equalized. In a typical starting operation, depression of a start button or accelerator pedal 20 actuates the moving contact 18 1  of a switch 18 through a cam surface 20 1  and the co-operating end 19 1  of a rod 19. Closure of contacts 18 1 , 18 2  energizes a motor 17 through the contacts 11 1 , 11 2  of a switch 11, the contact 11 1  being linked to a rod 12 actuated by a cam 13 which is mounted with another cam 14 on a shaft driven by the motor 17. The motor 17 drives the cams 13, 14 through a quarter of a turn, the cam movements respectively changing over the contact 11 1  to de-energize the motor 17 and closing contacts 15 to close switches 7, 8 through a relay action and so use battery 5 for starting. Return of the button 20 to its initial position or further depression of the pedal 20 causes the moving contact 18 1  to reengage contact 18 3  and so energize the motor 17 through contacts 11 1 , 11 3 , the cams 13, 14 then being driven for another quarter of a turn to re-engage contacts 11 1 , 11 2  and so de-energize the motor 17 and to allow contacts 15 to open. The cam 14 is now positioned so that, during the next starting operation of the member 20, the contacts 16 will be closed to close the switches 9, 10 and so use the battery 6 for starting. The motor 1 has a field winding formed by two parts 2, 3, and is run up to speed in four stages as follows: (1) Switches 7, 8 or 9, 10 closed to feed motor from battery 5 or 6. (2) Switch 4 is additionally closed to obtain a half-field condition.  (3) Only switches 7, 10 are closed to feed the motor from batteries 5, 6 connected in series. (4) Switch 4 is additionally closed to obtain a half-field condition. More than two batteries may be provided, in which case the cam 14 will act successively on a number of contacts to successively employ the batteries for starting. If the member 20 is the accelerator pedal, it may have additional cam surfaces for controlling the switches 4, 7, 8, 9 and 10.
Patent GB-748679-A (GB)
Title: Improvements relating to electric motor and coupling units
IPC: H02K7/10
Filed: 1954-03-01
Abstract: 748,679. Motor driving arrangements. STAMICARBON N.V. March 1, 1954 [Sapt. 7, 1963], No. 5978/54. Class 35. [Also in Group XXIX] A motor in a flameproof casing is coupled to its load through a hydraulic coupling the outer member of which serving as the fluid container is connected to the motor shaft and carries fan blades which pass air over the coupling and then over the motor casing. As shown, the driven member 6 of the coupling is secured to the rotor carrying sleeve 3 and carries the enclosure 10 for the coupling liquid and fan blades 15 passing air over the enclosed motor. The driven coupling member 8 is on a shaft 9 passing through sleeve 3.
Patent GB-914608-A (GB)
Title: Process for the production of fillers
IPC: C09C1/00
Filed: 1961-02-17
Abstract: Freshly precipitated moist calcium carbonate is intimately mixed with a silicic-acid containing component (which may be hydrous silica or a silicate) added as such or formed in situ. Thus moist calcium carbonate precipitate may be mixed with one of two solutions reacting to form calcium or sodium aluminium silicate and the other of the solutions added thereto. Alternatively the precipitation of the calcium carbonate may be effected in the presence of silica and the so-modified precipitate may then be treated with the silicate-producing reactant solutions.  The freshly precipitated calcium carbonate may alternatively be mixed with a separately precipitated silicic acid component.  The silicic-acid containing component is preferably about as equally finely-divided as the calcium carbonate and both components should have a specific surface area of at least 50m2/g.  Methods based on direct carbonation of milk of lime are especially advantageous for the production of finely-divided calcium carbonate, e.g. a finely-divided CaCO3 precipitate may be produced by the addition of small amounts of active silicic acid, i.e. freshly-prepared unaged silicic acid in a low polymerized state, to milk of lime with rapid carbonization at initial temperatures of about 20 DEG C.  In Example 1, a calcium hydroxide suspension with a 2% silica content (added in the form of water glass Na2O, 3,3SiO2 and 0,75% sodium nitrilotriacetate) is carbonated with a CO2/air mixture. The CaCO3 suspension formed is divided into two equal portions, to one of which calcium chloride is added to form a 0,1M calcium chloride solution and to the other sodium silicate is added to form a silicate solution with 0,1 mol. of sodium oxide.  The two solutions are mixed and the resulting filter cake after washing, drying and grinding gives a filler having a specific surface of 75m2/g., the content of hydrated calcium silicate being 20%.  Specification 783,712 is referred to.ALSO:The reinforcing effect of a calcium carbonate silicic acid-containing filler (see Group III) on natural rubber was tested with the following composition: .Smoked sheets.100,0 .Calcium carbonate silicic acid- .containing filler.50,0 .Zinc oxide.5,0 .Stearic acid.2,0 .Coumarone resin.1,5 p  .a mixture of .25 parts by wt. of the cyclohexyl amine .salt of coconut acid .35 parts by wt. of ethylene glycol .40 parts by wt. of formamide.1,3 .Dibenzothiazyl-disulphide.0,9 .Diphenyl guanidine.1,0 .Sulphur.3,0 Specification 783,712 is referred to
Patent GB-1092234-A (GB)
Title: Method of manufacturing permanent magnets using the electro-slag melting and casting method
IPC: C22C38/10
Filed: 1966-02-11
Abstract: 1,092,234. Casting processes; continuous casting. TESLA, NARODNI PODNIK. Feb. 11, 1966 [March 3, 1965], No. 6101/66. Heading B3F. Al-Ni-Co alloy members for making permanent magnets are made by melting an electrode of the alloy in a mould by the electroslag process (using a slag of 40-100% CaF 2 , 0-50% Al 2 O 3 , 0-50% CaO, 0-10% SiO 2 , 0-5% MgO, 0-5% TiO 2  and a current density in the electrode of 0À3-3À5 amp/mm.<SP>2</SP>) to produce columnar crystals in the axial direction of the mould. A water-cooled, copper, iron or aluminium mould or a refractory mould may be used and it may have a movable, e.g. iron, bottom which is lowered for a continuous casting, the casting being treated by magnetization at an increased temperature as it leaves the mould.
Patent GB-199769-A (GB)
Title: Improvements in or relating to air tubes for pneumatic tyres
IPC: B60C5/20
Filed: 1922-03-01
Abstract: 199,769. McLeroth, T. B. March 1. 1922. Air tubes and chambers.- Relates to tyres of the kind described in Specifications 160,942, 189,552, and 189,821 in which the air-chamber consists of a series of compartments each communicating with a continuous inner air-spacethrough a valveless tube. The present invention consists in a " stud " for connecting the innerend of the communicating feed tube with the wall o of the corresponding compartment or the inner air-chamber. In the construction shown, the wall o and the inturned end k of the feed-tube m are clamped between the head a and base f by a flanged tubular neck d, a washer c being fitted over the outer end of the neck and a fabric patch p under the base f. Communication between the tube. m and the inner air-chamber is provided by spaced depressions j in the beaded edge h of the base member, and an aperture b in the bead a. The tube m may be cemented at r to the wall s of the outer compartment.
Patent GB-578083-A (GB)
Title: Improvements in or relating to the manufacture of polymerisable products from hydrogenated naphthalene and of resins made therefrom
IPC: C08F244/00
Filed: 1943-04-16
Abstract: Unsaturated polymerizable compounds such as styrene and indene are prepared by thermal decomposition of hydrogenated naphthalene at a temperature above 200 DEG  C. and a pressure not above atmospheric, in the absence of added hydrogen, and preferably in the presence of a cracking catalyst.  Inert diluents such as nitrogen or superheated steam may be present.  The product may be fractionated in presence of an inhibitor such as quinol or catechol to separate the polymerizable compounds.  These may be polymerized by treatment with sulphuric or phosphoric acid or benzoyl or other organic peroxide, for example while in aqueous emulsion.  In an example, tetrahydronaphthalene, made by hydrogenating naphthalene at 450 DEG  C. and 250 atmos. in presence of a tungsten catalyst, is vaporized and passed with steam over a 10 : 1 SiO2-Al2O3 catalyst at 675 DEG  C. Fractionation gives styrene, indene and ethylbenzene.  The styrene and indene may be polymerized separately or together to resins. Naphthalene obtained as a by-product may be hydrogenated and recycled.
Patent GB-221739-A (GB)
Title: Improvements in stands for ink and like bottles
IPC: B43L27/00
Filed: 1924-03-12
Abstract: 221,739. Frantsits, P. March 12, 1924. Inkstands.-Stands for bottles of ink or other fluid comprise a strip of spring sheet metal, the central part 6 of which forms a horizontal base, the end parts 10 of which project upwardly at the sides to form a spring clip holding a bottle upon the base 6, or, when the bottle is nearlv empty, in a tilted position, and which is doubled upon itself between the parts 6, 10 to form supporting feet 7 for the stand. The feet 7 are rectangular and both bent inwardly to form guides 8 for a slidable drawer 9 for pens, stamps, &c., and a flange on the base 6 is bent downwardly to form a back stop for the drawer. The stops 12 of the parts 10 are bent outwardly and may serve as Tests for penholders when the bototle is on the base 6.
Patent GB-124725-A (GB)
Title: Improvements in Rolling-mill-operating Mechanism.
Inventor: DAY GEORGE EDWARD
IPC: B21B35/06
Filed: 1919-03-13
Abstract: 124,725. Day, G. E. March 15, 1918, [Convention date]. Rolling. - A driving mechanism for a number of stands of alined rolls is constructed so that a single motor 35 drives, through gear wheels at 30, 31, 32, pinions 23 in housings 16 at each end of the rolls 10, 11, 12, 13, and in alinement with the rolls. The rolls at the various levels are coupled together by means of coupling sleeves 14 and spindles 15, and the arrangement is such owing to the double nature of the drive, that any required roll can be put out of action by uncoupling its particular mechanism, without disturbing the drive of the rolls in alinement with it on either side.
Patent GB-623785-A (GB)
Title: Improvements in and relating to cinema and like seats
IPC: A47C7/56
Filed: 1947-03-06
Abstract: 623,785. Tip-up seats. DUNCAN, F., and GREAVES & THOMAS, Ltd. March 6, 1947, No. 6319. [Class 52 (v)] Tip-up seats which can be permanently secured in rows have side supports comprising forward and rear uprights 1, 2 of angle or T section which are secured together medially by sheet metal plates 10 carrying fixed seat pivots 13 which extend through the forward upright, the forward, and rear uprights being secured together near their upper ends by means upon which arms rests 5 are secured and the upper ends of the rear uprights being secured together by a sheet. metal plate 9 upon which a fixed back 8 is mounted. The plate 9 is secured to plates 7 mounted on the rearwardly inclined upper portions 2b of the back supports and bars 4, straddled by spaced irons 6 of the arm rests 5 connect the upper ends of the front and rear supports the space between the supports and above the seat being blocked by plates 15. Channel members 11 are secured to the hingesupporting plates 10 which are arranged in pairs one on either side of the webs of the uprights and support pivot pins 13. Stops 12 and 14 against which the seat abuts in seating and tipped position respectively are mounted on the plates 10 and on channel members 11. Adjustable bearing members 18 provided with bearing surfaces 22 for the stops 14 are pivotally mounted at 19 on a sheet metal foundation plate 16 of the seat so that the pivot bearings 20 can be moved towards each other when mounting the seat in position. The bearing elements are then screwed in position.
Patent GB-116080-A (GB)
Title: Improved Construction of Knee for Artificial Legs.
Inventor: BOULANGER ERNEST JOSEPH AIMABL
IPC: A61F2/64
Filed: 1918-02-01
Abstract: 116,080. Boulanger, E. J. A. Oct. 27, 1916, [Convention date]. Limbs, artificial. - A knee-joint is formed in three parts c, d, e connected by a pin g to a slim member f. The centre part d is curved to engage the top of the member f, and the parts d, f are provided with abutments to limit the movement of the leg, a layer of leather or the like d<2> being provided on the part d. The parts c, d, e are secured together and are held by a ring b<1> within the end of a bucket b constructed as described in Specification 113,610.
Patent GB-1506675-A (GB)
Title: Circuit arrangement for evaluating signals from a testing device
IPC: G01R19/165
Filed: 1976-02-18
Abstract: 1506675 Signal threshold circuits G A O GESELLSCHAFT FUR AUTOMATION UND ORGANISATION mbH 18 Feb 1976 [18 March 1975] 06400/76 Heading H3T In a circuit for thresholding a signal wherein the signal is fed to one input of a comparator and to a voltage divider, a tap of the voltage divider being connected to a capacitor connected to the other input of the comparator, the arrangement being such that when the circuit is in its quiescent state, the capacitor voltage is less than the signal voltage and when the circuit switches to its operative state, the capacitor voltage is held indefinitely at a level above the signal level by the supply of current if necessary. When a photo-electric system such as a light barrier 1, 2. Fig. 1a, is in its quiescent state the output voltage U S  applied to input 10 of comparator 4 is greater than a reference value applied to input 11 by capacitor 7 charged to a level determined by the voltage divider 5, 6. The output of comparator 4 is zero and switch 8 is closed. When the light barrier operates, U S  falls below U R  and the comparator output then goes high to open switch 8. Capacitor 7 then charges to a new U R  through a high resistance 9 connected to a bias voltage U V , higher than U S . Switch 8 may alternatively be connected between the junction of resistors 5 and 6 and the capacitor 7, Fig. 1b (not shown) or may be replaced by a switch, open in the quiescent state, between U V  and a lower value resistor 9, Fig. Ic (not shown). Diodes may be connected across resistor 5 to limit the difference between U S  and U R , Figs. 2 and 3 (not shown). The bias voltage U V  may be provided by connection to the output of comparator 4 through a diode, Fig. 4 (not shown). To ensure that the circuit adopts the correct state when switched on, capacitor 7 may be connected to a negative voltage instead of earth, Fig. 11 (not shown). In an embodiment receiving an A.C. input signal, Fig. 8 (not shown) the input signal is rectified for application to input 10 and the bias voltage U V  is derived from the input signal by a voltage multiplier. In a further embodiment, Fig. 5, the resistor 9 is omitted and resistor 6 is taken to the output of comparator 4 so that in the quiescent state the zero output ensures that U R  is less than U S  and in the operative state output U A  and hence the reference voltage U R  are above U S . In another embodiment, Fig. 6, the signal U S  is reduced by a voltage divider 15, 16 before application to input 10, opening of switch 8 is then sufficient to keep U R  > U SR  without the need for a higher voltage bias supply. Switch 8 may simply be a diode connection to the output of comparator 4, Fig. 7 (not shown). To prevent U R  falling too low, capacitor 7 may be connected through a diode to a minimum bias source, Fig. 10 (not shown) and a transistor may be provided to detect when current flows through the diode. The signal so produced may be used to monitor the correct functioning of the circuit.
Patent GB-268742-A (GB)
Title: Roentgen tube
IPC: H01J35/16
Filed: 1927-03-08
Abstract: 268,742. Siemens - Reiniger - Veifa Ges. fiir Medizinische Technik. April 3,1926, [Convention date]. R÷ntgen-ray tubes.- The anticathode of a R÷ntgen - ray tube is fitted with an apertured hood 1 impenetrable to R÷ntgen rays, the aperture 6 being provided with a window 10 of beryllium or other material transparent to R÷ntgen rays but giving rise to little R÷ntgen radiation under electron bombardment, and the cathode 23 is fitted with a shell 15 which surrounds and overlaps the end of the hood 1 adjacent the cathode and which is impenetrable by R÷ntgen rays as reach it and has an end wall 17, impenetrable by R÷ntgen rays issuing from the passage 13 of the hood 1. The tube emits only useful R÷ntgent rays and electrons are prevented from impinging on the glass and causing emission of gas. The hood 1 may be of copper turned on a lathe and may be held in good heat-conducting relation with the anticathode 2 by conical engaging surfaces 2<1> pressed together by tightening up screws and engaging conical recesses 4 in the anticathode 2. The flat window 10 wholly covers the part of the wall of the aperture on the anticathode side of its outer surface and is held in place by a screw ring 11. The passage 13 is narrow at its end, for example 8 mm. in diameter, and widens towards the anticathode to prevent electrons from the cathode striking the walls of the passage and to diminish R÷ntgen rays from these walls issuing from the window 10. The outer edge of the hood has a projecting ring 14 hindering the travel of electrons to the outer surface of the hood and absorbing weak R÷ntgen radiation from the end of the hood. The shell 15 may be of iron and the part 17 may carry a tubular extension 19 made resilient by slits and clamped by a ring 21 and screw 22 against a mica sheath on the cathode lead 18. The extension 19 has an enlarged bore 19<1> at the end near the cathode to space it away from the lead 18.
Patent GB-127640-A (GB)
Title: Improvements in Means for Cutting the Cables of Marine Mines and of Sweeping Apparatus therefor.
Inventor: SMITH ROBERT ARTHUR
IPC: B63G7/04
Filed: 1917-05-08
Abstract: 127,640. Smith, R. A. May 8, 1917. Mines, marine; sweeping mines. - Relates to means for cutting horizontal cables between floating bodies such as mines, mine - sweeping vessels, and defensive obstructions, and consists in providing the cutting- apparatus with a number of shearing - edges so placed that a horizontal cable encountered thereby must fall between one pair of shearing-edges without being guided for more than a short distance. In the form shown in elevation in Fig. 3, a number of wedges 129 are carried by a standard 4 within which slides a multi-toothed cutter 1. This cutter may be reciprocated in any desired way, for example, as shown in Fig. 6, by an electric motor driving, through worm gearing 36, a rocking beam mechanism 24 connected by a link 23 to a post 5 on the cutter 1. When used on mine-mooring cables, three sets of cutters 1 are arranged around the cable as shown in plan in Fig. 5.
Patent GB-673659-A (GB)
Title: Method for producing smokeless briquetted fuel
IPC: C10L5/14
Filed: 1949-03-10
Abstract: 673,659. Composition fuel. VLOEBERGHS, A. March 10, 1949 [May 14, 1948; Jan. 11, 1949], Nos. 6537/49 and 6538/49. Class 50. A method of producing briquetted fuel comprises forming a paste-like mixture of a powdered solid fuel, such as lean or semi-bituminous coal, and a binder consisting of molasses and at least one residual product of cellulose manufacture, the paste being briquetted and the briquettes heated and finally cooled. The term " molasses " includes any residuary material containing crystallizable sugar. In an example, briquettes prepared as above and containing 3-10 per cent by weight of binder are passed on a conveyer into a tunnel furnace where their temperature is raised rapidly to 200-300‹ C. They are kept at this temperature for 10 to 30 minutes and then gradually cooled. The resulting briquettes are resistant to breakage and practically smokeless on ignition.
Patent GB-578323-A (GB)
Title: Improvements in and relating to the production of hydrogen-containing gases
IPC: C01B3/10
Filed: 1944-04-07
Abstract: 578,323. Hydrogen. ARNOLD, M. H. M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 7, 1944, No. 6539. Drawings to Specification. [Class 90] In the production of hydrogen by the steamiron process, the hydrogen-producing stage and the iron-oxide reducing stage are carried out in separate vessels, the metallic iron and/or the iron oxide being maintained in the form of small particles as a fluid bed (i.e. a bed of particles through which up-flowing gas is passing at such a speed that the bed assumes some of the properties of a liquid) while avoiding the production of an entrained stream (i.e. in which the gas velocity is so high that the particles pass through the reaction vessel as a stream with the gases). Preferably there is a continuous transfer of iron-oxide from the hydrogen producing stage to the reducing stage and of metallic iron in the reverse direction a fluid bed being maintained in both stages. The flow of the solid particles may be in co-current with the gases, but in the reduction stage it is preferred to operate with counter-current flow. The particles of ferruginous material may be admixed with particles of inert material. Carbon monoxide, producer gas or water gas are the preferred reducing agents. The reducing stage may operate at a temperature of 500-550‹C., and the hydrogen producing stage at a temperature of 500-600‹C., the reducing stage being operated solely by the sensible heat in the particles from the hydrogen-producing stage. Specification 569,691 is referred to in the Provisional Specification.
Patent GB-127644-A (GB)
Title: Improvements in or relating to Means for Coupling Internal Combustion Engines.
Inventor: BIRKIGT MARC
IPC: F02B73/00
Filed: 1917-05-08
Abstract: 127,644. Birkigt, M. Feb. 12, 1917, [Convention date]. Propelling .-Internal-combustion engines having countershafts rotated through pinions from the main shafts are arranged one behind the other with their shafts in line, the rear of the casing of each engine forming the front cover of the engine behind it and having bearings for the countershaft and front end of the crank-shaft of that engine, so that all the engines may be formed into a single block. The Figure shows two V-engines coupled together with 45 degrees phase-difference between their crank-shafts, and with their countershafts in alinement. The rear of the casing of the first engine has ball bearings f, g for the front ends of the countershaft a and crank-shaft b of the second engine, and forms a cover-plate for the gearing c on the second engine. A cover-plate h having similar bearings is used on the first engine, the countershaft of which carries a propeller. Ball bearings d are also provided for the countershafts a and cylindrical bearings e<1>, e<2> are provided for a gun barrel co-axial with the shafts a, which may be made hollow. The shafts a are coupled by universal joints, or the two may be replaced by a single shaft. The magnetos i are placed behind the second engine. The combined gun and engine for aircraft is described in Specification 127,643.
Patent GB-100452-A (GB)
Title: Improvements in or relating to the Manufacture of Acetic Anhydride.
Inventor: DREYFUS HENRY
IPC: C07C51/56
Filed: 1916-05-08
Abstract: 100,452. Dreyfus, H. April 28,1915, [Convention date]. Addition to 100,450. Organic acid anhydrides.-Acetic anhydride prepared by the process described in the parent Specification is distilled off at a temperature below about 150‹ C. in vacuo. The Specification as open to inspection under Sect. 91 (3) (a) refers also to anhydrides of other organic acids, and to distilling at temperatures below 200‹ C., preferably in vacuo. This subjectmatter does not appear in the Specification as accepted.