baber/WOPTO huggingface dataset:
Patent GB-1273755-A (GB)
Title: Method for the production of seal material
IPC: C04B35/52
Filed: 1969-05-30
Abstract: 1,273,755. Carbon metal composites. NIPPON CARBON CO. Ltd. 30 May, 1969 [22 April, 1969], No. 27544/69. Heading C1A. A carbon-metal composite adapted to function as a seal material is produced by grinding carbon or petroleum coke to a particle size of at most 40 micron, mixing the ground material with or without C black with a carbonaceous binder in amount of 40-50% by weight of said ground material kneading this mixture utilizing a Banbury type mixer, with an electric power of at least 1 kw. or more per kilogram of mixture, grinding the kneaded mixture to a particle size of at most 100 mesh Tyler, moulding the mixture, baking the moulded green body using a maximum temperature of 1300-1400‹ C. in a furnace to give a carbon body of bulk density in the range 1À68 to 1À79 gm./c.c., impregnating the baked body with metal or alloy in an autoclave, and continuing the impregnation until a ratio of impregnation i.e. (density of product after impregnation-density of baked product used) / (metal density) x (carbon porosity) of 80% or more is achieved, and withdrawing the impregnated body from the autoclave. The preferred metal has a m.p. of 200-1000‹ C. and may be Sn, Pb, Sb, Ag, Sb-Pb alloy, an Sb-Sn alloy, Y alloy, an Sb-Cu alloy, or a Pb-Ag alloy. The material produced by the above process is alleged to have and endurance of 10 mins or longer at 10-30 g. when subjected to an impact fatique test conducted by a vibrating machine.
Patent GB-303933-A (GB)
Title: Improvements in or relating to devices for supplying direct voltage, and more particularly a grid bias to the grids of the valve or valves of a radio installation
IPC: H05K11/00
Filed: 1927-10-17
Abstract: 303,933. Wade, H., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 17, 1927. Vacuum or low-pressure apparatus, arrangement of; converting pulsating currents into steady continuous currents. - An apparatus for supplying direct voltages from alternating current mains, more particularly grid-biasing voltages for thermionic valves, comprises one or more smoothing-resistances and a tapped output potentiometer which are mounted on an insulating plate carrying contact strips connected to the tappings. Fig. 1 shows the complete apparatus, Fig. 5 the mounting of the resistances, and Fig. 7 is a circuit diagram. The potentiometer resistance 18 is wound on one or more glass tubes 32 mounted in clips 31 secured to an insulating plate 30. Its ends are taken to terminals 40, 42. The smoothing-resistances 17 are housed within the tubes 32, the ends being taken to terminals 41, 42. Soldered tappings on the potentiometer 18 are led to contact strips 23 - - 26 on the plate 30. The plate is slid into guides 35, 36 in a casing which has other compartments for housing the rectifier G, the transformer T, smoothing condensers C, and auxiliary resistances R. These auxiliary resistances marked r<1> - - r<4> in Fig. 7, are connected between output terminals B - - E and a number of contacts 23' - - 26<1> mounted on a plate 44 and adapted to engage the contact strips 23 - - 26 respectively. Auxiliary smoothing-condensers C1 - - C4 are connected between each resistance and the positive output terminal A, and are housed in the compartment C.
Patent GB-767295-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: GOUGH KATHLEEN AGNES
IPC: H01G13/00
Filed: 1953-10-08
Abstract: A solder for aluminium consists either of an alloy of the composition .Sn.90.0.per cent .Zn.10.0.per cent or an alloy of the composition .Sn.54.5.per cent .Zn.36.5.per cent .Cd.9.0.per cent
Patent GB-1083278-A (GB)
Title: New n-substituted pyridobenzodiazepines and process for the manufacture thereof
IPC: C07D211/60
Filed: 1966-06-22
Abstract: Novel pyrido[2,1 -c][1,4]benzodiazepine - 12-ones, having valuable pharmacological properties and analgesic, tranquillizing and/or anaesthetic effects, of the general formula <FORM:1083278/C2/1> and pharmaceutically acceptable acid addition salts, quaternary ammonium compounds and N-oxides thereof, wherein R1 and R2 each stand for hydrogen, halogen (particularly, chlorine, bromine or iodine), trifluoromethyl, lower alkyl, lower alkoxy or methylenedioxy when R1 and R2 are taken together and attached to adjacent carbon atoms on the benzene ring; and R3 represents an alkyl, alkenyl, carbonyl-alkyl, carbo (lower) alkoxy-alkyl, lower alkoxy-alkyl, di (lower) alkylaminoalkyl, phenyl, phenyl (lower) alkyl, phenyl (lower) alkylene or cycloalkyl radical, are prepared by reacting in the presence of an acid-binding agent and in an inert solvent the corresponding 1,2,3,11,12,-12a -hexahydro(4H, 6H)pyrido[2,1-c][1,4]benzodiazepine-12-one of the general formula <FORM:1083278/C2/2> with a halogenide or sulphate of an alcohol of the general formula R3-OH  (III) and optionally converting the final product to a pharmaceutically acceptable acid addition salt, quaternary ammonium compound or N-oxide thereof. Pyrido[2,1-c][1,4]benzodiazepine-12-ones of the second general formula are prepared by reacting lower alkyl pipecolinates and appropriately substituted o-nitrobenzyl halides in the presence of an excess of an acid binding agent and in an inert solvent, reducing the resulting N-(o-nitrobenzyl)pipecolinates with hydrogen in the presence of Raney-nickel and simultaneously saponifying and condensing the resulting N-(o-aminobenzyl)pipecolinates to the desired pyridobenzodiazepine ring system with mineral acids.  Ethyl pipecolinate is prepared by converting picolinic acid to its hydrochloride salt, reducing to pipecolinic acid hydrochloride and esterifying with ethanol.  6-Nitroveratryl chloride is prepared by reducing 6-nitro-veratraldehyde with t.-butylamine borane and reacting the resulting 6-nitroveratryl alcohol with phosphorus pentachloride.
Patent GB-834342-A (GB)
Title: Method and apparatus for the liquid treatment of workpieces and for the delivery thereof from the treatment apparatus
Inventor: ENTWISTLE JAMES ERIC
IPC: C23G3/00
Filed: 1957-09-03
Abstract: 834,342. Cleaning metals; modifying metallic surfaces. ELECTRO-CHEMICAL ENGINEERING CO. Ltd. Aug. 27, 1958 [Sept. 3, 1957], No. 27842/57. Class 82(2) A method of liquid treating (cleaning, pickling, phosphating) a number of similarly shaped workpieces comprises immersing the workpieces in treatment liquid which is contained in the domeshaped bottom 4 of a vessel 1 provided with an upwardly inclined track 3 extending from said bottom to a higher discharge point 5, and vibrating the vessel so as to agitate the workpieces in the liquid and cause them to travel up the track and be delivered from the discharge point. Up and down vibration of the vessel is effected by electromagnetic means in housing 6. Treatment liquid is circulated through the vessel via conduits 10, 11, and a heat exchanger and filter (Fig. 1, not shown). The workpieces may be passed through a series of such vessels, being delivered from one to the next by belts or the like. Thus they may pass through a rough cleaning liquid, an alkaline cleaning liquid, a hot water rinse and a drying unit which is constituted by a similar vessel which is supplied with hot air instead of liquid.
Patent GB-693342-A (GB)
Title: Improvements in and relating to electrical switch contacts and contact structures
IPC: H04M19/02
Filed: 1951-11-28
Abstract: 693,342. Switch contacts. MALLORY METALLURGICAL PRODUCTS, Ltd. Nov. 28, 1951 [Nov. 28, 1950], No. 27876/51. Class 38 (v) A contact, e.g. for a vibrator or an ignition contactbreaker, comprises a hollow member having its contact face 11 separated from its support 14 by side walls 15 which are welded or clamped to the support: The face 11 is flexible and the contact may contain a damping structure to reduce contact bounce. In a modification, Fig. 5, the hollow member 20 is of pyramidal form comprising members 21-24 secured to the support at 27.
Patent GB-846585-A (GB)
Title: Method and apparatus for recovery of entrained solids from gases
Filed: 1957-09-04
Abstract: Entrained polymer solids are recovered from the gaseous material which is the off-gas of a polymer drying step which gaseous material also contains as vapour or fine liquid droplets, hydrocarbon solvent for the polymer and a liquid used previously to precipitate the polymer from the solvent by contacting the off-gas in a scrubbing zone with a quenching and scrubbing liquid which is at least partially immiscible with the solvent or precipitating liquid to form a solid polymer-containing liquid phase, and separating the polymer solids from the liquids in a phaseseparater.  Specified polymers are those of ethylene, propylene, butylene, their mixtures or their copolymers with butadiene and isoprene, preferably preferred by low-pressure polymerization.  The precipitating liquid may be water vapour. Apparatus for carrying out the process is described. Specifications 790,195, 804,641 and 835,301 are referred to.
Patent GB-1455105-A (GB)
Title: Binocular microscope
IPC: G02B21/22
Filed: 1975-07-02
Abstract: 1455105 Microscopes WILD HEERBRUGG AG 2 July 1975 [4 July 1974] 27928/75 Heading G2J A binocular microscope comprises two variable magnification viewing systems 2-7, 2'-7' and a main objective 1 which is laterally displaceable relative to at least one of the viewing systems between a position in which the optical axis of the objective coincides with the axis of the viewing system and a position in which the optical axis of the objective is midway between the optical axes of the viewing systems. The objective 1 is mounted on a carriage which slides in the microscope housing or it is eccentrically mounted on a rotatable carrier. Means for laterally displacing an object under examination are also provided. The relative movement may be effected by moving a viewing system.
Patent GB-751745-A (GB)
Title: Improvements in or relating to liquid filtration apparatus
Filed: 1953-10-14
Abstract: 751,745. Filters. McALLISTER, R. A. C. Oct. 14. 1954 [Oct. 14, 1953], No. 28263/53. Class 46. A liquid filter comprises an inner cup-like liquid-receiving member 6, Fig. 4, having a foraminous base 7 and a surface 8a in separable sealing engagement with a surface 5a of an outer member, e.g. a cup 2 spaced therefrom and having a suction outlet 9 in the wall positioned between the foraminous base 7 of the member 6 and the sealing surfaces 5a, 8a. The latter are formed on outwardly-extending radial flanges 5, 8. In a modification the upper face of flange 8 is ground flat and a third cup having a foraminous base is inverted thereover to act as an air filter during drying of the residue. In a still further modification adapted for filtration under pressure the outer member 23, Fig. 6, comprises an annular support for the inner cup 6 and has its upper surface in separable sealing engagement with the lower surface of the cup rim 8 whilst the lower surface of member 23 is in non-sealing abutment with the rim 5 of the filtrate receiving cup 2 and allows egress of air displaced by liquid forced through the foraminous base 7 by pressure air admitted through a cock 21.
Patent GB-616917-A (GB)
Title: Improvements in and relating to control systems for electric motors
IPC: B60L7/12
Filed: 1946-09-20
Abstract: 616,917. Exciting dynamo-electric machines. HOLLYER, E. B., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 20, 1946, No. 28270. [Class 35] [Also in Group XXXVII] An electric motor control system of the type in which variation of line voltage in one direction or the other, or in both directions, from a nominal value is limited without affecting the control of the motor when the line voltage is within said limit or limits, is afforded with means for producing a voltage representative of the line voltage connected in circuit with rectifying means, said circuit including a source of reference voltage and control means governing the motor current whereby, in response to the line voltage varying beyond the value corresponding with said reference voltage, said first means will cause current to flow in said control means whereby to reduce the motor current, said rectifying means preventing flow of current in said circuit except when the voltage representative of the line voltage differs in the one sense from said reference voltage, thereby to inhibit operation of the control means to modify the normal operation of the motor except when the line voltage varies beyond the nominal value by a desired amount. As shown, motors M1 and M2 are supplied from a metadyne transformer MT, the secondary current of which is controlled by a variator winding 1 energized by an exciter 2. A field winding 4 of the machine 2 is adapted to be energized from a constant-speed exciter 5 which is provided with a field winding 6, connected across supply-lines L1 and L2, and an opposing field winding 7 which is connected with a constant source, for example a battery 8. The windings 6 and 7 are adjusted so that when the voltage across lines L1 and L2 has a rated value the output of the exciter 5 is zero. During regenerative operation, increase of line voltage will cause the exciter winding 6 to predominate and the exciter 5 will produce a voltage which is not effective, due to the rectifier arrangement shown to energize the winding 4 until it becomes greater than the opposing battery-voltage, whereupon the resultant excitation of the exciter 2 is such as to reduce the regenerated current of the motors M1 and M2 and the line voltage is thereby substantially limited to a desired maximum. During motoring operation, when the line voltage falls below its rated value, the exciter winding 7 becomes predominant and the exciter 5 produces voltage in the opposite sense to that obtaining during regeneration. Owing to the bridge connection of rectifiers 9 to 12, this voltage again opposes that of the battery 8 and the winding 4 is not excited until the v Itage of the exciter 5 is the greater. Energization of the winding 4 again effects reduction of the secondary current of the machine MT and the motor armature current is reduced to prevent further decrease of the line voltage. Single. rectifier arrangements may be used if it is desired to limit the change of line voltage in one direction only.
Patent GB-867541-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: COOPER DAVID HENRY D OYLY
IPC: B60C9/20
Filed: 1956-09-15
Abstract: 867,541. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Sept. 5, 1957 [Sept. 15, 1956], No. 28275/56. Class 144 (2). A pneumatic tyre is reinforced in the tread region by a layer 1 of a flexible synthetic organic polymeric material of high molecular weight and having a modulus of elasticity in at least one direction in the plane of the layer in the range 100,000 to 2,000,000 lbs. per sq. inch and a modulus of rigidity in the range of 30,000 to 700,000 lbs. per sq. inch, the layer 1 being thicker at each side portion 2 than at its central portion 3 and being embedded in the tread to extend wholly around the circumference and across the width thereof. The layer 1 may be of nylon or " Terylene " (Registered Trade Mark) and may be used in conjunction with a layer or layers of steel cord fabric. The thickened side portions 2 of the layer may be additionally reinforced by a circumferential winding of textile or steel cord, and each may extend laterally from 2 to 15% of the total width of the layer. The layer may be formed as a band, or extruded as a strip which is lap jointed to form a band. Alternatively the layer may be drawn in either one direction, or in two directions at an angle of from 15 to 90 degrees to each other, the layer being laid with a direction of drawing extending circumferentially of the tread. Alternatively where the layer is dual drawn, or two layers are used, the respective drawing directions may be disposed symmetrically with respect to the circumferential direction. The carcase with which the tread reinforcement is used may comprise textile or steel cord plies disposed with their cords at 90 degrees to the circumferential direction, and the or each layer 1, which may be perforated to key with the embedding rubber of the tyre, may be disposed above, below or between the carcase plies.
Patent GB-875171-A (GB)
Title: Improvements in and relating to electric switch cases
IPC: H01H9/02
Filed: 1958-09-03
Abstract: 875,171. Switch cases. TELEMECANIQUE ELECTRIQUE. Sept. 3, 1958 [Sept. 19, 1957], No. 28296/58. Class 38 (5). A switch case, suitable for suspension from moving machinery, comprises a U-shaped metal sheet 1 carrying switches 4, which is welded at 3 to another U-shaped metal sheet 2 having apertures for the switch buttons 5. Sheets 1, 2 are welded to a cap 11, and their edges 1a, 2a form grooves in which slide the edges of a hood 9 welded to a cap 13, the assembly being secured by a screw 15 engaging a bracket 14 welded to sheet 1. The buttons 5 are flush with or slightly below the sheet 2 to prevent accidental operation, and if desired, may be arranged in two rows, Fig. 4 (not shown). The case may be suspended by a member 16 fixed to sheet 1.
Patent GB-956428-A (GB)
Title: Improvements relating to methods and machines for running together pairs of gears
IPC: B23F23/12
Filed: 1962-07-23
Abstract: 956, 428. Measuring toothed gears. GLEASON WORKS, July 23, 1962 [Aug. 25, 1961], No. 28307/62. Heading G1M. [Also in Division B3] A gear finishing or gear testing machine intended for carrying out in a simplified manner the method described in Specifications 892,347 and 940,360 in which pairs of gears G, P are run together for finishing or testing comprises a housing 26 mounted on the frame 18 for journalling the spindle of the gear G and a housing 14 which journals the spindle of the gear P and is mounted on the frame 18 through the intermediary of a plate 17 angularly and translationally movable in a plane parallel to both spindles under the control of two sets of guide-and-follower elements 34, 35 (of which the elements 34 are carried by the frame and the elements 35 by the plate) which are arranged to determine a pivot axis 33 about'which the plate may be oscillated. To effect of this mechanism is such as to produce a relative motion of the gears G, P equivalent to that described in the above-numbered Specifications (namely the co-ordinated motions of relative reciprocation of the gears in the direction of their axes and simultaneous oscillatory motion of the gears about an axis 46 in the meshing zone to shift lengthwise of the tooth the bearing or contact area) by arranging only for an oscillatory motion of the gear P about the axis 33 which is spaced from and parallel to the axis 46. The plate 17 is supported on the horizontal plane surface 18 of the frame by anti-friction bearings 32, the guides 34 on the plate being held in contact with the rollers 35 on the frame structure by a spring-loaded plunger 37 secured to the plate at an angle bisecting that subtended by the lines 47, 48 intersecting at the axis 33 and joining the contacting points of the guides and rollers 34, 35. Angular adjustment of the guides 34 shifts the location of the axis 33 to alternative'positions, such as 33<SP>1</SP> or 33<SP>11</SP>, the resultant shift of the axis 46 through an arc E being the equivalent of that produced by the combined motions of the machines of the prior Specifications. Hydraulically-operated piston means of the kind disclosed in Specification 940,360 is used for adjusting the guides 34, and the cam 42, which produces oscillation of the plate 17 by its action on a roller 43, is oscillated by a reversible motor controlled by the switching means described in that Specification to vary the angular motion of the cam on either side of the starting position.
Patent GB-331142-A (GB)
Title: An improved device for preventing cavitation in very high speed turbo-pumps for liquids
IPC: F04D29/22
Filed: 1929-09-18
Abstract: 331,142. F÷ttinger, H. Sept. 18, 1929. Casings.-Cavitation is presented in high speed pumps by revolving coaxial frictional surfaces which are arranged in front of the suction mouth of the impeller and impart a preliminary rotation to the liquid. Rotating with the impeller 1, Fig. 1, is a number of conical surfaces 3 - - 5 secured to the rotor blades in any convenient manner and housed in an extension of the casing. In a modification the surfaces 3 - - 5 are connected by impeller blade extensions. In another modification a disc-shaped frictional surface 15, Fig. 3, is provided. The liquid enters the aperture 7, is rotated by the disc, and is led radially or obliquely inwards by the guiding device 16, 17 to the impeller 1. In the further modification shown in Fig. 4, the liquid is first accelerated by its passage between conical discs 15, 15<1>, 15<11>, 15<111> joined together by bridge pieces 18; the liquid is then led to the impeller eye by passages 16, 17.
Patent GB-1459478-A (GB)
Title: Ramming device on a refuse-disposal vehicle
IPC: B65F3/20
Filed: 1974-06-26
Abstract: 1459478 Refuse vehicle J OCHSNER & CIE AG 26 June 1974 [26 June 1973] 28372/74 Heading B8E The loading hopper 4 of a refuse vehicle 3 has a curved bottom 6 bounded by side plates 5 and a curved chute 7 at the rear. Refuse 28, Fig. 11 introduced over a loading edge 10 is raised by a pusher 9 actuated by rams 24 to a position 28 2 , Fig. 2, from where it is pushed into the bin 2 by a plate 33 actuated by rams 37. A front roof part 15 of the pusher 9 has pivoted to its rear end at 16 a rear roof part 17 in turn pivoted at 18 to guide levers 19 pivoted at 20 to the rear of the chute 7. As the pusher rises to its Fig. 2 position the rear roof part 17 unfolds about its pivots 16, 18 guided by the levers 19 to the position in which it forms a continuation of the front part 15. A sealing strip 30 prevents refuse 28 1 , Fig. 2, getting behind the chute 7. The arrangement of a two part roof 15, 17 allows there to be a lighter construction.
Patent GB-188917-A (GB)
Title: Improvements in machinery or apparatus for effecting cutting operations
IPC: B26D1/00
Filed: 1921-10-26
Abstract: 188,917. Byrne, F. A. Oct. 26, 1921. Traversing-cutter machines. - Relates to means for cutting the jointing strip of tyre covers, made according to Specification 8075/15, (Class 70, India-rubber &c.], and consists in a machine with cutters which move outwardly under centrifugal force. A rotating shaft g carries an adjustable sleeve r upon which slides a collar t urged by a spring u abutting the flanged sleeve end. Within the sleeve slides a rod p carrying a cutter c and attached to the collar t by a pin p'. The tyre b is supported upon a table a in the base of which is a footstep bearing i for the shaft g, and the shaft is rotated to cause the cutter c to move outwards and sever the strip. In a modification a plurality of sleeves are provided, and in a further modification a centrifugal governor mechanism is substituted for the telescopic arms.
Patent GB-160219-A (GB)
Title: Improvements in unpuncturable pneumatic wheels for vehicles
IPC: B60B9/20
Filed: 1919-11-17
Abstract: 160,219. Swift, W., (Swift, R.). Nov. 17, 1919. Spring wheels with continuous outer rigid ring and pneumatic cushions; disc wheels.-In resilient wheels of the kind having two pneumatic tubes housed between two centre discs curved near the periphery and a solid tyre carrying rim formed with an inward flange projecting between the tubes and the discs, the discs a are parallel from the hub b to the outer curved part, and the inward flange e<2> has elongated slots e<3> through which pass securing bolts f. The flange may be connected to the discs also by chains g; and thin flexible dises i may connect the hub to the rim so as to exclude dirt. Reference has been directed by the Comptroller to Specifications 9171/02, 6980/04, 9274/08, and 28152/09.