baber/WOPTO huggingface dataset:
Patent GB-246893-A (GB)
Title: Improvements in or relating to protective arrangements for alternating current electric circuits
IPC: H02H3/33
Filed: 1924-10-03
Abstract: 246,893. Reyrolle & Co., Ltd., A., Clothier, H. W., and Burgess, W. A. A. Oct. 3, 1924. Electromagnetic switches; automatic circuitbreakers; cut-out arrangements. - Relates to a protective arrangement for use in conjunction with a trailing or like cable between an electromagnetically-operated switch and electrical apparatus (for example a portable coal-cutter used in mines), in order to ensure that, when the earthed pilot circuit is incomplete, the gateend switch automatically opens. An electromagnetic relay or other tripping device has a magnetizing winding and an auxiliary winding normally short-circuited by the sound field wire circuit so as to vary the magnetic or inductive effect of the electromagnet. As shown in Fig. 1, the core A has a magnetizing winding B connected to the supply mains and tending to attract the armature A<1> and close the relay. The core, however, has an additional winding D the ends of which are connected to the normally-earthed pilot wires so that the winding is short-circuited and acts to weaken the flux through the armature with the result that, until the earthed pilot circuit becomes incomplete, the armature is not attracted to close the tripping circuit. In a modification, the additional winding is arranged upon a magnetic shunt path A<2>, Fig. 2. When short-circuited, the current induced in the auxiliary winding weakens the flux in the shunt path and therefore increases that through the armature which is therefore attracted to open the holding circuit. The adaptation to a corebalance leakage system for a three-phase, trailing cable supply is shown in Fig. 3. In the event of earth leakage the current in the secondary E<2> trips the gate-end switch G in the usual way. In order to provide for tripping in the event of discontinuity of the earthed pilot circuit K, the transformer is provided with a magnetizing winding E<1> connected across two of the phases and with an additional winding D<5> connected to the earthed field wires which normally shortcircuit it. The short-circuited winding damps the effect of the primary winding E<1> which is then ineffective to energize the secondary E<2>, adequately to trip the circuit-breaker. If, however, the earth circuit becomes incomplete, the circuit-breaker is tripped. Specification 240,574 is referred to.
Patent GB-218529-A (GB)
Title: Improvements in incubators
IPC: A01K41/00
Filed: 1923-09-18
Abstract: 218,529. Slade, M. W. Sept. 18, 1923. Hatching-appliances.-An incubator heated by air-circulation is divided into an egg-chamber a and a hot air chamber b connected by passages c, d and enclosing two sections f, f<1> of the hotwater tank that are connected at each side by a passage h, h<1>. The vertical portion f<1> of the tank is connected by flow and return pipes g, g<1> to a boiler and is divided by a space j, the cooler section f<2> being arranged in an open flue k. Perforated baffles i, i' equalize the flow of water in the tank f. The chamber b and the part of the chamber a above a partition a<1> are surrounded by non-conducting material in in the space m. Below the egg-drawer and partition a<1>, which is perforated and formed of material of low conductivity, is a cool chamber a<2>. Known means for the admission and escape of air may be provided. A thermostat o controls a valve p in the hot water supply pipe.
Patent GB-864753-A (GB)
Title: A method of manufacturing a member by an electroforming process
Inventor: MARINER PETER FREDERICK
IPC: C25D1/00
Filed: 1956-07-30
Abstract: 864,753. Electroforming. ELLIOTT BROS. (LONDON) Ltd. July 16, 1957 [July 30, 1956], No. 23516/56. Class 41. A method of manufacturing a member by an electroforming process comprises, at an intermediate stage in the process, applying an element 3 of low electrical conductivity to the metal 2 already deposited and controlling the deposition of metal 5 around at least a part 4 of the element 3 to attach the element 3 to the member 2 with a degree of freedom relative thereto, e.g, perpendicular to the plane of the paper in the figure. The element 3 may be a stiffening rib of dielectric material and may have a foot 4 for contacting the deposited metal 2.
Patent GB-842425-A (GB)
Title: High tension electric insulators
IPC: H01B17/14
Filed: 1958-07-22
Abstract: 842,425. Insulators. PARTICIPATIONS APPAREILLAGE GARDY S. A., DE. July 22, 1958 [Nov. 15, 1957], No. 23552/58. Class 36. An insulator for supporting a busbar consists of a body 1 of oblong cross-section having rounded ends and at least two anchorage members 2 at least partially embedded in its lower face and at least two bus-bar fixing members 5 at least partially embedded in the upper face.
Patent GB-1003740-A (GB)
Title: Helicopter rotor
Inventor: COPLIN JOHN FREDERICK
IPC: F02K3/072
Filed: 1964-06-08
Abstract: 1,003,740. Gas turbine engines. ROLLSROYCE Ltd. June 8, 1964, No. 23736/64. Headings F1G, FIJ and FIT. [Also in Division B7] The invention relates to a helicopter rotor having a plurality of angularly spaced apart blades each blade having mounted at its tip a gas turbine engine which comprises a first shafting on which is mounted a compressor and a turbine of the engine, and a second shafting on which is mounted a free turbine which is driven by the gases passing through the engine, the gases driving the first and second shaftings in opposite angular directions. The engine shown is a gas turbine ducted fan type jet engine. The engine comprises a first shaft 14 on which are mounted a compressor 15 and a turbine 16. The compressor which comprises axial-flow stages 20 and a centrifugal stage 21 supplies air to the combustion section 22, gases from which act on the turbine 16. The first shaft 14 has secured thereto end members 23 and 30, the forward member 23 being supported in a plain bearing 24 and in a ball thrust bearing 27, while the after member 30 is supported in a plain bearing 32. A duct member 33 is supported within the shaft 14 and fuel is supplied thereto from the duct 35, the fuel discharging from the duct member into the combustion section 22 through an annular member 37 having radial ducts. The gases from the turbine 16 pass through an annular duct and then act on a turbine 44, the turbines 16 and 44 rotating in opposite directions. The turbine 44 is mounted on a shaft 41 which is supported at its upstream end in a plain bearing 32A, disposed adjacent the bearing 32, and at its downstream end in a plain bearing 42. The turbine 44 carries fan blades 45 which draw air from the intake 54 through duct 46 and discharge it through vanes 49 into the duct 50 where it mixes with the turbine exhaust gases and discharges through the outlet nozzle. A lubricating oil reservoir is provided at 51 and oil passes therefrom through duct 52 to the chamber 53, the oil then being supplied by means of pump 55 to the plain bearings 32, 32A and 42 through lines 62, 63 and 64. The oil from the bearings returns by way of lines 66, 67 and 68, through oil cooler 70 and duct 71 back to the reservoir 51. The pump 55 is arranged so that it is immersed when the rotor blade is stationary as well as when it is rotating.
Patent GB-166461-A (GB)
Title: Improvements in or relating to liquid level indicators
IPC: G01F23/16
Filed: 1920-08-13
Abstract: 166,461. Price, A. H. Aug. 13, 1920. Indicators actuated by pressure of head of liquid.-A liquid-level indicator comprises a tank chamber b in communication with the tank a and adapted to form an air lock, the tank chamber being fitted with an air connection p of relatively small and constant bore extending into the base of an indicator chamber j fitted with a gauge glass m of small cross - section compared with the indicator chamber. The gauge glass may be graduated or provided with a scale s. The indicator chamber may be fitted with a flange for attachment to the dashboard of a motorvehicle. The pipe joints are made by unions h and rubber packing g. In a modification, the tank chamber b is fitted inside the tank a.
Patent GB-1284731-A (GB)
Title: Improvements in or relating to a building construction
Inventor: LAMBURN ALAN SALISBURY
IPC: E04B1/98
Filed: 1968-05-18
Abstract: 1284731 Building panels JOHN LAING & SON Ltd 12 Aug 1969 [18 May 1968] 23760/68 Headings E1B and E1W A storey high pre-fabricated building panel for use in multi storey buildings defining at least part of the external walls of a building includes a rigid asbestos, foamed plastics or timber non-structural portion 30 pivotally mounted at 31 in an aperture and held in place by a shear pin 32 withstanding all normal forces but being overcome by an internal gas explosion. In an alternative embodiment two members are pivotally mounted from opposite edges of an aperture and are normally held in place by leaf springs, which if an explosion occurs assist in opening the aperture. The non- structural portions may be urged open by torsion springs but normally held closed by shear pins which fracture if an explosion occurs.
Patent GB-1589005-A (GB)
Title: Drive assembly for a rotary column of a door wing of a swivel door
IPC: E05F15/00
Filed: 1978-05-30
Abstract: Using such a drive device, the door wing (1 or 2), with the aid of a rotating pillar (5 or 6), is brought out of the door opening. The drive (7) generating the torque for the rotating pillar (5, 6) is arranged on a plate (12) which is supported such that it can torsionally vibrate about at least one axis which is perpendicular with respect to the plate (12), there being arranged in the torsion region of the plate (12) a switching element for interrupting the closing process and reversing the door-wing movement. The means for reversing the door-wing movement is simplified thereby and combined in one structure with the drive thereof. <IMAGE>
Patent GB-439379-A (GB)
Title: Improvements in and relating to hard alloys
IPC: C22C29/04
Filed: 1934-08-20
Abstract: Hard alloys for cutting tools &c. comprise carbides of tungsten, carbide and nitride or carbo-nitride of titanium, and a binding alloy of tungsten and cobalt, with or without other metals, particularly molybdenum, chromium, vanadium, and iron, the amount of titanium nitride being up to 20 per cent of the weight of the titanium compounds.  The total proportion of carbides and nitrides may be 78-97 per cent of the alloy.  The alloys may be made by pressing and sintering the mixed powders, or by fusion and casting, or by impregnation of the sintered hard constituents with molten binding alloy.
Patent GB-280676-A (GB)
Title: Improvements in pince-nez
IPC: G02C3/00
Filed: 1926-10-02
Abstract: 280,676. Kirk, P., and Kirk, S. M., (trading as Kirk Bros.). Oct. 2, 1926. No Patent granted (Sealing fee not paid). Eyeglasses.-Pince-nez and spectacles are constructed with bridges 3 made separate from the rims 2 and the lower parts shaped to fit the rims 2. In the lower parts key-hole slots 4 are provided which engage studs 5 secured to the rims 2, so that the bridges 3 may be fitted to rims fitted with lenses of different sizes. Lugs 6 on the bridge 3 are folded down over the rims to prevent lateral movement and the lower ends of the bridge are extended to carry placquets 8, or may form placquets. This construction of bridge is specially applicable to tortoise-shell and like rims.
Patent GB-875943-A (GB)
Title: Process for the production of microporous separators for electric accumulators
Inventor: MALISCHEWSKI BERNHARD
IPC: H01M50/414
Filed: 1959-07-15
Abstract: Microporous battery separators are obtained by sintering at 230 DEG -280 DEG C. for less than 30 seconds, polyvinyl chloride or polystyrene particles of 0,05-0,15 mm. size and having a coefficient of uniformity (explained) of 2-4 and a maximum difference between the dimensions of each individual particle in different directions of 1-3.ALSO:Microporous battery separators are obtained by sintering at 230 DEG -280 DEG C. for less than 30 seconds synthetic resin particles of a size 0,05 to 0,15 mm. and having a coefficient of uniformity (explained) of 2-4 and a maximum difference between the dimensions of each individual particle in different directions of 1 to 3. Polyvinyl chloride and polystyrene are specified, and, after sintering the separators may be corrugated.
Patent GB-1346544-A (GB)
Title: Silver allantoinate-containing compositions
IPC: A61K31/415
Filed: 1972-05-24
Abstract: 1346544 Silver allantoinate WASHINGTON UNIVERSITY 24 May 1972 [1 June 1971] 24414/72 Heading C2C [Also in Division A5] Silver allantoinate, having a water solubility of about 0À02% at 25‹ C., is prepared by adding an aqueous solution of silver nitrate to an aqueous solution of allantoin, the weight of silver nitrate used being substantially equal to the weight of the allantoin, then adding ammonia and separating the silver antoinate thus formed.
Patent GB-890687-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: ASHWORTH ARTHUR FREDERICK MART
IPC: H02K5/20
Filed: 1958-07-29
Abstract: 890,687. Cooling dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 24, 1959 [July 29, 1958], No. 24425/58. Class 35. A dynamo-electric machine of the totally enclosed liquid-cooled type includes tubing 7 of corrosion resistant material, such as cupronickel, in contact with the steel yoke 3 of the machine. The tubing may be metallically bonded to the yoke by soft soldering, brazing or welding and is arranged in the form of an endless tube which undulates around the circumference of the machine with the major portions of the tubing parallel to the machine axis (Fig. 3). The coolant, e.g. water, is admitted at suitable points dependent on the pressure allowable in the tubing. The Provisional Specification refers also to an arrangement in which the tubing winds helically around the yoke of the machine. This subjectmatter does not appear in the Complete Specification.
Patent GB-209454-A (GB)
Title: Improvements in gas stoves and cookers
IPC: F24C15/10
Filed: 1922-09-11
Abstract: 209,454. Helps, G. Sept. 11, 1922. Gas cooking-stoves; hot-plates.-Hot-plates for gas cooking-stoves are constructed of bars forming grids, the hot-plate being carried by clips, brackets or supports secured to the bars and attached to the oven or cooker. Various methods of connecting the bars to form the grids are described. In the construction shown in Fig. 1, the bars a are threaded on to bolts b and spaced apart by distance-pieces c. Clear spaces over the burners are left by means of short bars which are in part supported by cross-members b<1> passing through them and also through the longer bars. Small utensils may be supported on grids fitting into these spaces over the burners. The hot-plate is supported by means of pLates m pivotally attached to the existing bridges or brackets on the stove so that the outer end may be moved to a convenient position for attachment to the bars by a clip, which in the form shown in Figs. 1 and 5 comprises a member k embracing two bars a and held by internal wedge blocks l pressed outwardly against the bars by a conical bolt k<2>. Other forms of clip, such as the split bolt shown in Fig. 6, may be used. The burners, tap-rail, &c. may be carried by suitable blocks or platas riveted or bolted to the bars, and the burners may be supported by bars formed as shown in Fig. 3, having a lower portion a<2> on which the burner rests. The grids may be formed by halving together the bars and the cross-bars, or, as shown in Figs. 9 and 10, the bars may be connected by slotted strips r engaging in key-holes g or g<1> formed in them and retained in position by a bar s subsequently passed through the key-holes. Fig. 12 shows a construction in which the bars are halved into tubes v and looked by a bolt w passing through the tubes and through holes in the bars. Fig. 14 shows a slotted tube t into which the ends a<3> of the bars a are housed and secured by a bolt u.
Patent GB-229254-A (GB)
IPC: B27H1/00
Filed: 1924-10-17
Abstract: 229,254. Ohagen, H. Feb. 13, 1924, [Convention date]. Bending.-Vaulted walls of coffins and other curved wooden constructions are produced by forming tapered incisions 2, Fig. 1, in the parts whilst in the flat form, the sides of the incisions being coated with glue, by which means they are held in contact after the bending operation, as shown in Fig. 2. The Specification as open to inspection under Sect. 91 (3) (a) describes a modified construction, shown in Fig. 4 (Cancelled) as after the bending operation, according to which parallel-sided incisions made in the boards have wedge-shaped insertions or tongues 4 placed in them, glue being applied as before, the projecting ends of the tongues 4 being subsequently cut off. This subject-matter does not appear in the Specification as accepted.
Patent GB-917871-A (GB)
Title: Apparatus for measuring the position of core-wires of welding rods relative to theircoatingcomposition
Inventor: STROHMEIER HARALD
IPC: G01B5/252
Filed: 1959-07-20
Abstract: 917,871. Sorting by gauging. BOHLER & CO. A.G. GEB. July 20, 1959, No. 24844/59. Class 106 (2). Apparatus for measuring the position of core wires of welding rods relative their surrounding coating, and having means for removing those rods having an eccentrically located core wire, includes a conveyer 2 feeding rods 8 from a hopper 1 to a slotted roll 3 whereby the rods are fed singly in spaced relation to a conveyer 6. The rods pass below a shoe 7 which contacts the coating surfaces of the rods so that they rotate during their passage below the shoe. An end of each rod is bared of coating material prior to being fed to the apparatus, and a feeler 9 is located above the path of those bared ends; the arrangement being such that only an eccentrically positioned core wire will contact the feeler. The latter will thus be moved, and a circuit supplying an electromagnet 12 thereby operated to open a flap 13 to allow the deficient rods to pass to a container 14. Sound rods pass to a conveyer 15. As shown in. Fig. 3, the feeler 9 is attached to a lever 10 pivoted at 23 to a plate 18 which rests on the rod. When the lever 10 is raised a contact 11 is closed and the electromagnet operated. Faulty operation which could be caused by curved rods is is obviated by having the plate 18 pivotable so that this plate and its fulcrum is lifted by such rods without closing the circuit to the electromagnet. The shoe 7 incorporates a stamp 16 which marks the rods ; alternatively, the defective rods only may be stamped, in which case they are not removed by the operation of the flap 13.
Patent GB-1150633-A (GB)
Title: Cellular Polyvinyl Chloride Materials
Inventor: ALLEN GEOFFREY
IPC: C08J9/10
Filed: 1966-06-03
Abstract: 1,150,633. Cellular vinyl chloride polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 May, 1967 [3 June, 1966], No. 24858/66. Headings C3C and C3P. Cellular materials are prepared by mixing dinitroso-pentamethylene tetra-amine, a salt of urea or a substituted urea other than a guanyl-substituted urea with an acid or mixture of acids selected from an alkaline monocarboxylic acid optionally substituted with a Cl or CN group, oxalic acid, an alkanedicarboxylic acid, an alkenedicarboxylic acid, an aryl mono- or polycarboxylic acid or an alkyl or arylsulphonic acid, and a vinyl chloride homopolymer, copolymer, mixture thereof or mixture with other polymers and heating the mixture to generate nitrogen. Cellular products from vinyl chloride homopolymer or copolymers with vinyl acetate or vinylidene chloride and blends of such polymers and copolymers may be prepared. The salt is preferably a salt of urea itself or, for example, of methylurea, ethylurea, n-propylurea, isopropylurea, n- or iso-butylurea, 3,5,5-trimethylhexylurea, ethyleneurea or phenylurea. Preferred salts are those derived from glutaric acid or a mixture of the latter with succinic and adipic acids. Other salts employed are the mono-p-toluene sulphonate, methanesulphonate, benzoate, cyanoacetate, hydrogen phthalate and hydrogen maleate salts of urea. The polyvinyl chloride composition may be treated in the form of a liquid, e.g. in a plasticizer, or in solid form.
Patent GB-1039187-A (GB)
Title: A method for removing scale from metallic surfaces
IPC: C23G1/08
Filed: 1964-06-16
Abstract: Scale containing Cu is removed from metallic surfaces by applying an acidic solvent containing an inhibitor, an alkenylthiorurea, which prevents deposition of metallic Cu on the surfaces, the alkenyl group containg 2 - 6 carbon atoms, and a surfactant.  Solvents described may contain 2-70% by weight of H2SO4, 0.1-1% by weight of an amine inhibitor in a mixture of water and water miscible alcohol containing a surfactant and 2-40 parts by weight for each part by weight of the Cu in the scale, of 1-butenyl-2 thiourea, 1-allyl-2-thiourea or a mixture thereof.  Co-Mo stell was treated for 6 hours at 150 DEG F.
Patent GB-922345-A (GB)
Title: Experimental box for electrical engineering
IPC: G09B23/18
Filed: 1959-07-20
Abstract: 922,345. Teaching electricity. R. HOLZWARTH, R. KELLER, E. R. NEHMANN, B.HECZKO, and A. SELTMANN, [trading as FRANCKH SCHE VERLAGSHANDLUNG W. KELLER & CO.]. July 20, 1959 [July 19, 1958], No. 24910/59. Class 146 (2). An electrical experimental kit box comprises a plastic chassis 1 having a horizontal mounting plate 2 provided with parallel grooves 14 and an inclined front wall 3. Experimental component are mounted on the plate 2 for interconnection and connection to a current source by support members having a clamping fit in the grooves preferably by means of clamping springs mounted panels 25 supporting the components. The springs may be provided in pairs spaced apart by a distance equal to that between adjacent grooves. The chassis 1 may contain certain components connected to control knobs on the front wall 3. Connection to the components may be made by means of contact clamps such as 18, Fig. 3, comprising a pin 19 and a sleeve 23 having bores 20, 22 which can be aligned by pressure against a spring 24 to allow the insertion of a wire which on release of the sleeve is held by spring pressure.
Patent GB-1320110-A (GB)
Title: Printing apparatus
IPC: B41L47/46
Filed: 1972-05-26
Abstract: 1320110 Cylinder printing machines INTERNATIONAL BUSINESS MACHINES CORP 26 May 1972 [1 July 1971] 24921/72 Heading B6C In a travelling cylinder machine in which the impression cylinder 10, Fig. 1, is vertically mounted and the bearings mounting the cylinder runs in cam slots 17, Fig. 3, so shaped as to cause appropriate engagement of the cylinder with an assembly comprising a credit card 30, an inking ribbon 41 and a web of copy paper 43 the cylinder is caused to roll along the rear surface of the credit card thus pressing the assembly against a vertical platen bed 44. The relief surface of the plate is formed of different heights and the platen bed 44 is shaped accordingly. The webs 41 and 43 move in opposite directions and the credit cards are moved in a vertical plane by an endless chain arrangement 36 disposed in a horizontal plane. In a second embodiment in which the assembly is disposed horizontally the impression cylinder is operated manually through a horizontal slide arrangement.
Patent GB-692241-A (GB)
Title: An improved apparatus for indicating the position of a rudder
IPC: B63H25/36
Filed: 1951-10-25
Abstract: 692,241. Rudder position indicators. BJORNSTAD, E. Oct. 25, 1951. [May 22, 1951] No. 24941/51. Class 114. Apparatus for indicating the position of a rudder comprises across-coil device 1 controlled by an adjustable resistance 4 operated by the turning movement of the rudder stack 5, Fig. 2, through a transmission shaft 6 connected thereto and disposed co-axially therewith. The stock and transmission shaft are connected by an elastic coupling 8 and the shaft is connected through toothed gearing 9, 10 with a rotary switch 13 whose contacts co-operate with tappings on the resistance 4. The number of tappings correspond with the number of degree divisions on the scale 3.