baber/WOPTO huggingface dataset:
Patent GB-835734-A (GB)
Title: Improvements in control systems for electric motor equipments
Inventor: PECK PHILIP ELWORTHY
IPC: H02P5/68
Filed: 1955-09-22
Abstract: 835,734. Control of two D.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 18, 1956 [Sept. 22, 1955], No. 27099/55. Class 38 (3). The top and bottom rolls of a rolling mill are driven by motors 1, 2, which are supplied from a common source such as a variable-voltage generator. The motors are separately excited by field windings 25, 26 respectively energized by main exciters 27, 28, the exciter 27 having a series field winding 29 and a field winding 29<SP>1</SP> carrying the armature current of the machine 28. This machine is similarly provided with field windings 30, 30<SP>1</SP>. A pilot exciter 36 supplies, in parallel, the field windings 37, 38 of the main exciters, a rheostat 39 differentially adjusting the currents passing through these field windings. The exciters are of sufficient capacity to provide rapid changes in the excitation of the motors whereby to obtain a high rate of change of speed, the pilot exciter having a reference field winding 40 opposed by a feedback winding 35 to prevent the motors from being over-excited. A current-measuring reactor 31 is controlled jointly by the currents in the motor field windings 25, 26, and the A.C. windings of the reactor are connected in series with the feedback winding 35 through rectifier 33. The field currents of both motors may be supplied from one only of the main exciters; and, when a single exciter is in operation, the field currents of both motors pass through the control windings of the reactor so that the feedback current is still dependent upon the total excitation of the two motors.
Patent GB-1385606-A (GB)
Title: Printed circuit with over-voltage protection
IPC: H01T4/08
Filed: 1973-06-07
Abstract: 1385606 Spark gaps INTERNATIONAL STANDARD ELECTRIC CORP 7 June 1973 [15 June 1972] 27168/73 Heading H1X Two of the tracks 2 and 4 of a printed circuit are spaced more closely than the others to form a spark gap 2a, 4a providing protection against surge overvoltages. Track 2 is grounded via terminal 1. A signal applied to track 4 via terminal 3 is liable to contain a surge voltage. Tracks 5 conduct other signals not likely to contain surge voltages.
Patent GB-269419-A (GB)
Title: Improvements in or relating to means or apparatus employed in finishing textile fabrics
IPC: B65H45/09
Filed: 1926-11-01
Abstract: 269,419. Butterfield, J. B. Nov. 1, 1926. Rigging and folding longitudally; winding- machines.-A machine for rigging and hot pressing fabrics is automatically stopped when the fabric gets displaced. The fabric 44 passes over the horizontal rigging blade 13, its edges being held by the temples 9, 10, over a roll 18 to the hot pressing rolls 2, 3, 4, and is wound up at 19. Opposite the end of the blade 13 is a disc 42 adjustably connected by a rod 40 and set-screw to the upper end of a lever 38 secured on the same shaft 34 as a weighted lever 43 and a bell-crank 46 one arm of which carries a. stop rod 47 white the other is connected by rods 50, 58 and a bell-cranls 51 loose on a shaft 52 to a thumb lever 54 on the hand lever 53 secured along with another lever 60 on the shaft 52. The lever 60 is connected to the spring pressed belt fork rod 61 carrying a pivoted latch 65 which engages with the top end of the rod 47 to bold the driving belt 79 on the fast pulley 67. Should either edge of the fabric fail to be engaged by one of the temples 9, 10 the spring 15 presses the blade 13 against the disc 42 and thus lowers the stop rod 47, when the spring 63 throws the driving belt on to the loose pulley 68. The blade 13 and the temples 9, 10 are carried by slides 29, 6 which can be adjusted on the cross guides 30, 5. The temples 9, 10 are carried on rods 7, 8 adjustable in the carriage 6 and one of them 10 is further adjustable by means of a screw 33, Fig. 4. Part 75 of the casing of each temple is pivoted and spring-pressed to accommodate fabric of different thicknesses at the slot 74. The spindle ends of the winding up roll 19 are depressed equally by rack bars 20 gearing with pinions 24 on a shaft 25 carrying a pulley 26 for a weight and cord not shown.
Patent GB-331754-A (GB)
Title: Improvements in filters for gases
IPC: B01D46/12
Filed: 1929-09-07
Abstract: 331,754. Wittemeier, H., (Assignee of Schõfer, E. H.). Oct. 27, 1928, [Convention date]. Filtering.-A filter comprises a stack of metal grids or perforated metal plates divided into groups, each group having a holder enabling it to be slid separately into or out of the stack. The filtering chambers a are open at their ends, and closed at top and bottom. Any number of filter sheets or grids is combined into a pack in a frame c with handle d, and the packs are stacked in a holder having at the bottom springs f which press the stack against the upper part of the holder, so that during withdrawal of a pack from the bottom or insertion of a clean pack at the top escape of uncleaned air is prevented. The frames need not extend completely around the sheets, nor need the top frame g be complete.
Patent GB-188495-A (GB)
Title: Improvements in and relating to electric irons
IPC: D06F75/28
Filed: 1921-10-14
Abstract: 188,495. Finizio, T. D. Oct. 14, 1921. Electric hand-irons with standing means attached. - In electric irons having the heating- element constructed as a self-coutained unit which may readily be inserted into the iron, this element comprises a slab of soapstone within which is embedded a resistance coil whose ends are connected to plug terminals fixed to the slab. A support for the handle which also forms a guard for the connecting plug is also described. The iron 10 has fixed to it by screws 12 the heating element 11, the underside of which is shown in Fig. 3. Cement 11<b> secures the coil 16 in the recess 11<a> and the terminals 17<1>, 18<1> project upwards so as to take within a plug. The screws 12 also secure in position a handle bail 13 carrying a handle 14 and a cover 20 which encloses the heating element, leaving an air-space through which air circulates by way of apertures 21, 22. Additional support for the handle is provided by a bent plate 23, which is secured to the handle by a flange 30 and to the iron by being gripped between it and the soapstone slab while projections 31 take within recesses 32 in the iron. The connecting-plug passes through a hole 29 in this plate and is kept from lateral movement by clips 26.
Patent GB-819868-A (GB)
Title: Improved means for controlling the operation of plant for the grading or separation of raw materials
Inventor: SYMINGTON ROBERT
IPC: B03B13/00
Filed: 1955-09-24
Abstract: 819,868. Washing granular materials. SIMON-CARVES Ltd. Sept. 18, 1956 [Sept. 24, 1955], No. 27283/55. Class 82(2) [Also in Group XXXV] The operation of grading or separating plant for coal or ore is controlled by gamma rays examining the cleaned product or separated dirt to maintain constant composition of the product. Fig. 2 shows a jig washer for coal which is supplied at 3 and is stratified by the action of compressed air intermittently supplied at 6 causing pulsations in the water in the washer. A horizontal gamma-ray beam (not shown) traverses the material in a direction perpendicular to its travel and being responsive to the weight of the material may be used to control through a device 13 the removal of the lower layer of dirt to keep the coal-dirt interface at a constant height. Cleaned coal leaves at 10 and dirt falling to the bottom of the washer is extracted by conveyers and elevators 9 and 8. Systems of froth-flotation and sink-and-float cleaning where the amount of flotation reagent and the density of the separating medium are automatically controlled are described and illustrated diagrammatically.
Patent GB-1532890-A (GB)
Title: Method of beading the ends of axially symmetrical tubular workpieces
IPC: B21D19/12
Filed: 1976-07-01
Abstract: 1532890 Beading tube ends BOHNER & KOHLE GmbH & CO 1 July 1976 [2 July 1975] 27376/76 Headings B3Q and B3J Internal or external beads are formed on tube-ends with a curling die 6 which is movable axially relatively to the tube 1. The tube or die is also rotated during the operation. The inner edge 9 may be axially offset from the outer edge 8, Figs. 7 and 8 (not shown). The curling groove at least at the edges 8, 9 may be coated with a layer of molybdenum, or it may be case-hardened or provided with a ceramic insert.
Patent GB-479785-A (GB)
Title: Improvements relating to air deflector vanes for sliding windows or ventilation panels for vehicles
IPC: B61D25/00
Filed: 1936-10-09
Abstract: 479,785. Wind deflectors ; vehicle window frames. WORCESTER WINDSHIELDS & CASEMENTS, Ltd., and BROWNE, F. C. Oct. 9, 1936, No. 27392. [Class 20 (iii)] A vehicle is provided with two horizontallysliding framed sashes or panels which may be separated to provide a ventilation opening, the meeting edges of the frames having air deflectors or vanes attached thereto in order to minimize draught. The frame members and the air deflectors are formed separately by extrusion, and are secured together by keying or other suitable means. In the construction shown in the Figure, the frame members 7 are provided with channel-shaped portions for the reception of glass panels 1, 2, and with dovetailsection ribs 11 which engage with correspondingly shaped grooves 12 in the air deflectors 5 when the latter are slid endwise into position, the frame members and deflectors being secured rigidly by welding or sweating. The deflectors are of curved cross-section with their convex surfaces presented towards each other. The face of one of the frame members is formed with a grooved portion 9 which is engaged by a projecting rib 10 on the other frame member, in the closed position of the window. According to a modification, the thickness of the frame members is increased in a direction perpendicular to the plane of the window, whereby they form a portion of the air-deflecting surfaces.
Patent GB-378394-A (GB)
Title: Improvements in or relating to films for photographic purposes
Filed: 1931-03-05
Abstract: A non-inflammable film support for photosensitive emulsions, more particularly for kinematographic use, comprises a layer of insoluble gelatin coated on each side first with a layer of rubber, and then with a protecting layer of celluloid, collodion or other varnish. The gelatin may be rendered insoluble with formaldehyde or alum which may be added to the casting solution or applied in solution to the cast layer.  The casting solution may also contain a trace of glycerine.  The casting operation may be performed by extruding the solution, at a temperature only a few degrees above its setting point, through a die on to a travelling polished and waxed metal band which is cooled before it reaches the die to a temperature considerably below the setting point. The cast layer may be drawn through alcohol to hasten drying, and then dried in a current of warm air.  The gelatin film is then thinly coated with rubber varnish (e.g. a small percentage of rubber dissolved in petrol), and then with a celluloid, collodion, or other varnish which will take the sensitized emulsion.  The varnished film may be passed between highly polished pressure rollers.
Patent GB-1158540-A (GB)
Title: Anti Skid, Tyre Attachment for Vehicles
Inventor: PARKER DENNIS CLAUDE
IPC: B60C27/02
Filed: 1968-06-10
Abstract: 1,158,540. Anti-skid tyre attachment. D. C. PARKER. 6 Nov., 1968 [10 June, 1968], No. 27512/68. Heading B7C. An anti-skid attachment for a tyre comprises a rectangular steel plate 1 bent at each end out of the plane of the plate and formed with a slot 3 adjacent each edge to receive a fixing strap, the flat central part of the plate having blades or teeth 5 pressed out at right-angles away from the bent-up ends.
Patent GB-1509387-A (GB)
Title: Tunnelling machine
IPC: E21C27/12
Filed: 1975-06-30
Abstract: 1509387 Impactors MASCHINENFABRIK RUDOLF HAUSHERR & SOHNE KG 30 June 1975 [29 July 1974] 27546/75 Heading E1F [Also in Division B4] In a tunnelling machine an impelling tool 8 is mounted in a tool carrier 4 at the end of an arm 1 of the machine by a bearing 3 which is located below the centre of gravity of the carrier and tool combination. Horizontal pivotal movement is provided by jacks 7.
Patent GB-758611-A (GB)
Title: Stabilization of solutions containing peroxygen compounds
IPC: D06L4/12
Filed: 1954-09-23
Abstract: Peroxygen bleaching solutions are stabilized by the incorporation of a composition comprising a water-soluble magnesium salt and a water-soluble alkalimetal phosphate, the amount of the phosphate being in the proportion of 1 to 5 parts by weight, on an anhydrous basis, for each part of magnesium salt calculated as magnesium. Aqueous solutions of sodium or hydrogen peroxide or mixtures thereof may be stabilized.  The magnesium salt may be the sulphate, chloride, nitrate or acetate in anhydrous or hydrated form and the phosphate may be the tetraphosphate, pyrophosphate, tripolyphosphate, hexametaphosphate or normal orthophosphate of sodium or potassium. The bleaching solution may also comprise sodium silicate, and pH adjustments may be made with cautic soda, soda ash or an acid. Materials which may be bleached with the stabilized bleaching solutions include textile fibres and fabrics composed of cotton, regenerated cellulose, silk or synthetic fibres; wood; wood pulp and feathers.  In examples, (8) regenerated cellulose filaments are formed into a loose yarn continuous with their production and are passed successively through the following stages: acid, water-wash, sulphide, wash, bleach, acid, wash, soap, dry; (9) kier-boiled and washed cloth is taken from a storage pit successively through a washer, a hot-water filled saturator, a squeezer, a first and second U-tube containing heated bleach solution, a final squeezer and a washer; (10) bleached cloth is after-treated with steam.
Patent GB-359959-A (GB)
Title: Improvements in furnace stokers
IPC: F23K3/12
Filed: 1930-04-19
Abstract: 359,959. Mechanical stokers. AMERICAN ENGINEERING CO., Aramingo Avenue, Philadelphia, U.S.A. April 19, 1930, No. 27585/31. Convention date, Feb. 1, 1930. Divided on 358,896. [Class 51 (i).] The fuel pushers in the retorts of underfeed stokers each comprise an open base frame 1 having secured to it a number of nosepieces 5, 6 overlapping on the top at 7 on a line longitudinal of the pusher. The base frame has an opening 2 for the pin 3 of the pusher rod and a forward extension 4 to which the nose-pieces are secured by bolts 10. The nose-pieces have corrugations or teeth 8 at the sides and the extension 4 has a transverse recess 9 for a scraper bar operating on the tops of the fixed plates which are themselves provided with resilient scrapers engaging the upper surface of the pusher nose.
Patent GB-462837-A (GB)
Title: Improvements in and relating to metallurgical converters
IPC: C21C5/56
Filed: 1935-10-07
Abstract: 462,837. Converters. MULLIN, G. A. Oct. 7, 1935, No. 27600. [Class 72] A fixed cylindrical converter C, which is inclined to the horizontal, is lined with refractory fire brick and is provided with two rows of twyers L in the sides of the converter and twyers K in the bottom, both sets of twyers being connected to pipes S connected to a blast chamber A. An oxygen supply chamber is connected to the blast chamber and the supply of oxygen to the blast is regulated by a valve in the pipe connecting this chamber to the blast chamber. Near the exit of the converter is provided a slag skiming wall Y which directs the slag into a channel T in a chamber R, and then into a ladle Z. The purifier metal passes off through a channel J to a ladle X, any slag passing off with the metal being skimmed off by a skimmer X<1>, placed in the tube J, and directed by a pipe M into the pipe X.
Patent GB-688725-A (GB)
Title: Electric percussion drilling apparatus
IPC: B25D11/06
Filed: 1950-11-13
Abstract: 688,725. Percussive drills. REGAN, C. F. Nov. 13, 1950 [Nov. 29, 1949], No. 27612/50. Class 124. A percussive drill comprises an electric motor driving a spindle transversely mounted in a casing and having a bevel gear and a flange on which are pivoted two hammer elements arranged, on rotation of the spindle, to strike blows on an element, and a chuck spindle mounted in the casing and rotated by drive means from the electric motor. As shown, a motor spindle 14 has at its end a pinion 14a driving gears 19, 20. The gear 19 is mounted on a shaft 17 carrying a bevel 17a which meshes with a bevel 15 on a transverse shaft 15a having a flange on which hammers 18 are pivotally supported by pins 16. The gear 20 drives, through a countershaft 21 and gears 34 and 22, a rotatable chuck 25 which carries a bit 32 and an element 23, the latter being in such position that it is struck by the hammers 18. Clearing water may be fed to a channel 26, through the rotatable chuck and through the hollow bit. The chuck may be rotated by a cam on the transverse shaft operating a bell crank lever and ratchet, Fig. 3 (not shown).
Patent GB-1221789-A (GB)
Title: Improvements in or relating to aerials
Inventor: JONES VERNON EDWARD
IPC: H01Q9/26
Filed: 1967-06-15
Abstract: 1,221,789. Aerials. PLESSEY CO. Ltd. 11 June, 1968 [15 June, 1967], No. 27633/67. Heading H4A. A discone aerial is at least partly constituted by a plurality of conductive threads which may be held taut by means provided to conform to a figure equivalent to a conductive surface. As described, a demountable discone aerial comprises two small, mutually insulated, conductive terminal members 1, 2, Fig. 1, from which extend conductive threads 5, 10 made, for example, of synthetic fibres woven with metal threads, which lie, respectively, on a conical surface 4, and on a central disc portion of a surface 9. The threads 5 extend downwardly to a tubular web 6 made of synthetic fibres, which is kept in a ring- shape by rod sections 7 inserted through slots in the said web. The rods 7 may be made of fibre glass, and their weight keeps the threads 5 taut. A rod 3 supports the terminal members 1, 2 and an aerial feeder. A number of insulating threads are secured at equal intervals around the web 6 and are extended to a bracket low down on the mast, so that they centralize and stabilize the aerial. The threads 5 are coupled together by one or more insulating threads 8 at intermediate points along their lengths. The upper conductive threads 10 extend radially from the member 2 to points of attachment of insulating stretcher threads 16, which are coupled at their other ends to the member 1. The threads 10 extend from the threads 16 to insulating threads 11, whose other ends are coupled to transverse insulating support threads 15. Six flexible fibre glass rods 14 are hinged at their inner ends to spaced positions around the terminal member 2 and carry the support threads 15 at their other ends. The upper structure may be collapsed when required, by springing the rods 14 downwards. Triangular plastics rain drip members may be provided on the threads 16. In another embodiment, the upper member takes the form of six spokes, each comprising ten parallel conductive threads 22, Fig. 4, which are spaced apart by transverse insulating members. The threads extend radially outwards from a terminal member 19 to one end of a strut 23, and then continue upwardly to one end of a flexible fibre glass arm. The other end of the said flexible arm is hinged to the member 19, and the other end of the strut 23 is secured to the said member by a toggle clip 25. The flexible arm and the strut are hinged together at a point 24 intermediate their lengths.
Patent GB-1136737-A (GB)
Title: 1,2,4-dithiazolidines
Inventor: ZUNACH GERHARD
IPC: C07D285/01
Filed: 1966-06-21
Abstract: 1,136,737. 3,5 - Dioxo - 1,2,4 - dithiazolidines. FARBENFABRIKEN BAYER A.G. 21 June, 1966 [23 June, 1965], No. 27646/66. Heading C2C. Novel compounds of the general Formula I wherein R represents any of the following: (a) a hydrogen atom; (b) an alkyl radical, which may be substituted by halogen atoms, alkoxy, aryl or aroxy groups, halogen-substituted aroxy groups, cycloalkoxy groups, alkyl-mercapto, arylmercapto or halogen-substituted arylmercapto groups; (c) an alkenyl radical, which may be substituted by one or more halogen atoms; (d) a dicarboxylic acid iminomethyl radical; (e) a substituted or unsubstituted heterocyclic ring system; (f) an aryl radical, which may be substituted by one or more halogen atoms, nitro groups, alkyl, alkoxy, halogeno-alkyl, perhalogeno alkyl or alkylmercapto groups; (g) a cycloalkyl group, which may be substituted by halogen atoms or alkyl groups are prepared by reacting an O-monothiocarbamate of the formula where R 1  is a hydrocarbon radical with chlorocarbonyl sulphene chloride. R is preferably an alkyl radical of 1 to 20 carbon atoms, an alkenyl radical of 3 to 5 carbon atoms, a cycloalkyl radical with 5 to 8 ring atoms, or a heterocyclic system with 5 to 7 ring members and 1 to 3 heteroatoms; and when R is substituted, the substituents are preferably alkyl radicals of 1 to 4 carbon atoms, alkoxy radicals of 1 to 4 carbon atoms, phenyl or phenoxy radicals, halogen atoms, nitro groups, alkylmercapto groups with 1 to 4 carbon atoms or arylmercapto groups. R 1  is preferably a hydrocarbon radical of 1 to 18 carbon atoms, and the reaction is preferably carried out in the presence of an inert solvent and a binding agent at 0 to 100 C., more preferably 20 to 40 C.
Patent GB-1249765-A (GB)
Title: Improvements in wall or ceiling panels
Inventor: VECCHIARELLI FRANCIS
IPC: E04B9/36
Filed: 1970-06-08
Abstract: 1,249,765. Interlocking metal panels. ALCAN RESEARCH & DEVELOPMENT Ltd. 8 June, 1970 [19 June, 1969], No. 27697/70. Heading E1K. A metal building panel 10 is provided along opposite longitudinal edges with a major rib 14 and a minor rib 12; each rib consists of a vertical wall 16 or 18, a horizontal shoulder 20 or 22, a vertical web 24 or 26, a flange 28 or 34 and an edge bead 30 or 36. The panels are secured together by interlocking adjacent ribs. Other rib forms, differing in detail but having the same essential characteristics as those illustrated, are described.
Patent GB-1194963-A (GB)
Title: Improvement in and relating to Toy Vehicles
IPC: A63H17/26
Filed: 1968-06-11
Abstract: 1,194,963. Toy vehicle suspension. DIE CASTING MACHINE TOOLS Ltd. and A. R. MILLS. 26 Feb., 1969 [11 June, 1968], No. 27781/68. Heading A6S. A suspension, in or for a toy vehicle, comprises a body portion, 10, and at least one elongate spring member, 11, 12, which constitutes at least one resilient axle portion and which is shaped to cooperate with retaining means on the body portion whereby the elongate spring is held in position. Preferably the spring is of steel wire the end portion of which constitutes a stub axle. In preferred embodiments, the two stub axles constituted by the elongate spring are aligned (Fig 6) or constitute axles for one each of two different pairs of wheels for the vehicle (Fig. 2). The retaining means may be arranged and constructed so that the spring can be engaged or disengaged therefrom by deforming the spring, and preferably comprises a plurality of lugs, 113, formed integrally with the body portion, and at least one peg, 14, upstanding from the body portion. When the retaining means and spring are mounted on the top of the body portion they can be hidden from view by the rest of the vehicle body, and when mounted beneath they can be hidden from view by the disposition of a further plate beneath the springs and mountings. In the embodiment shown in Fig. 6 the peg, 16, retains the spring in such a way that the wheels mounted on the ends thereof are steerable.