baber/WOPTO huggingface dataset:
Patent GB-922900-A (GB)
Title: Improvements in or relating to aircraft
Inventor: HAVERTY LEO
IPC: B64C21/02
Filed: 1958-08-28
Abstract: 922,900. Aircraft. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 12, 1959 [Aug. 28, 1958], No. 27627/58. Class 4. A high speed aircraft has a region over which the air flows terminated abruptly rearwardly in relation to the free stream direction or line of flight by an angularly edged junction with a rearwardly facing cliff or step, the edge being swept relative to the free stream direction and the angle of the junction and the depth of the cliff or step below the edge being such that air flowing over the edge becomes separated from the aircraft. In the embodiment shown applied to the upper surface of a wing W wherein the airflow is indicated by arrow X, a step is shown having a riser 10 perpendicular to the wing surface ahead of the step and swept at an angle S to the normal to the direction of free air-flow. Holes 15a, 15b and 15c are provided in the step and in the wing surface aft of the step, such holes being connected by pipes 16a, 16b and 16c to a plant 17 for blowing or sucking air, to influence the air flow over the edge 11. Other embodiments are described applied to swept and delta wing aircraft wherein the surface aft of the position of maximum thickness is formed into a plurality of stepped wedge formations. In another embodiment the steps are formed by the sides of an engine nacelle and an arrangement is described wherein the aft end of an engine nacelle is formed with circumferentially spaced stepped wedge portions
Patent GB-638409-A (GB)
Title: Improvements in or relating to protective covers or closure devices
IPC: H02G3/08
Filed: 1948-10-25
Abstract: 638,409. Stoppers. LOVELL, A. J. Oct. 25, 1948, No. 27630. [Class 125(iii)] [Also in Group XXXVI] A cowl 12 for a device having a part of tapered form such as a junction box 11 as described in Specification 638,359. [Group XXXVI], is composed of stiff rubber or like slightly elastic material and has a flared skirt, the lower edge of which is formed with an internal bead 22 adapted to snap under a flange 14 on the junction box or other device. A band of metal or other suitable material may be pushed over the cowl to wedge the skirt on the device. Specification 189,514 [Class 125(iii)] is referred to.
Patent GB-742259-A (GB)
Title: Improvements in or relating to stake pockets for supporting railway rails
Inventor: UNDERDOWN GEORGE WILLIAM
IPC: E01C19/50
Filed: 1952-12-04
Abstract: 742,259. Railway rail stake pockets. METSPRAYS, Ltd. March 2, 1954 [Dec. 4, 1952], No. 27746/52. Class 104 (2). A railway rail stake pocket has a profiled side which overhangs one side of the flange of a flat bottom rail when in position on the profile base. The stake pocket comprises two metal plates 2 welded to shuttering 1 or the like and formed with undercuts 2a which engage outside the flange of the rail 4, the plates being joined by a bridge-piece 3 serving as a mounting for a rotatable cam or quadrant 5 or a nut and bolt and washer or distance piece or by a rotatable disc which engages the other flange of the rail 4. The shuttering 1 may be held in position by wedges 6 passed through slots 7 in the plates 2 and engaging a stake 8.
Patent GB-227950-A (GB)
Title: Improvements in the manufacture and production of wire-ropes
IPC: D07B1/06
Filed: 1923-11-05
Abstract: 227,950. Bullivant, F. A., and Selby, G. M. Nov. 5, 1923. Wire ropes.-Wire ropes are made by laying or twisting together strands which are, as shown, formed with a right-hand and left-hand twist respectively, the rope being so arranged that strands having a right-hand twist alternate with strands having a left-hand twist. The wires in the members constituting the strands may also be arranged with alternate right and left-hand twists, or may be twisted in the same direction, or the members constituting the strands may consist of single wires of the requisite diameter.
Patent GB-1413703-A (GB)
Title: Grating disc for use in a dispenser
IPC: B23D71/04
Filed: 1973-06-12
Abstract: 1413703 Rasping apparatus BELRAS AG 12 June 1973 [13 June 1972] 27806/73 Heading B2A [Also in Divisions A4 and B3] In a rotatable grating disc 1 for use in a dispenser for grating soap of the like, having slots 11-14 with projecting teeth 17, the slots are curved forwardly in the direction of rotation of the disc, the teeth 17 being formed in at least one edge of each of the slots. Arcuate slots 11, 11', 12, 12' are machined as by diepunching in disc 1, and have teeth 17 formed on their trailing and/or leading edges and projecting from the face of the disc at an angle of about 60. Each pair of opposite slots 11, 11', and 12, 12' is generally s-shaped. Between these slots, shorter slots 13, 13', 14, 14' are machined as by die-punching. All the slots are part-circular and centred on points 19, 19' lying on a circle with a diameter about half that of the disc.
Patent GB-391687-A (GB)
Title: Improvements relating to electro-magnetic warning and like sounding devices
IPC: G10K9/10
Filed: 1932-10-06
Abstract: 391,687. Electromagnetic interrupters. KESSELRING, F., 61, Schwabacher Strasse, F³rth, Bavaria, Germany. Oct. 6, 1932, No. 27839. [Class 38 (v).] The contact-breaker of an electromagnetically vibrated hammer mechanism for a warning device is carried on a bridge-piece 9 clamped at one end 9a, to a frame member 4, the other end 9b coacting with the fine thread of a double-threaded adjusting screw 10 the coarse thread of which coacts with a tapped hole in the member 4, the screw being locked by a nut 11. The bridge-piece 9 carries contacts 13, 14 in series with the operating coil, the former being carried on a spring blade 12 which engages a ring 15 fixed to the armature 3.
Patent GB-408597-A (GB)
Title: Process for the manufacture of new resin-like products from polybasic acids and polyhydroxy-compounds
IPC: C08G63/137
Filed: 1932-10-06
Abstract: Artificial resins are prepared by reacting hexahydroxycyclohexane or the mono- or di-methyl ether thereof with one or more polybasic acids or anhydrides thereof in the presence or absence of modifying agents such as drying oils, semi-drying oils, non-drying oils, natural resins or their corresponding acids or other monobasic acids.  The reaction may take place in the presence of solvents such as tetrahydronaphthalene, entraining liquids such as xylene or known esterification catalysts such as phosphoric acid, calcium glycerate or litharge.  Suitable polyhydroxy compounds include inositol, quebrachitol, pinite and dambonite.  The resins, which are compatible with cellulose derivatives such as nitro- or benzyl. cellulose, may be used, if desired with the addition of cellulose derivatives, pigments, fillers, oils and plastifiers, in the manufacture of coating compositions for metal and wood or moulding.  In examples, commercial quebrachitol was condensed p  with phthalic anhydride alone, or in the presence of linseed oil, fatty acids with or without tung oil, or a mixture of tung oil, cyclohexanol and tetrahydronaphthalene; quebrachitol partially esterified with colophony was condensed with phthalic anhydride; a condensation product of quebrachitol, phthalic anhydride, linseed oil fatty acids and tung oil was dissolved in white spirit and solvent naphtha to yield a coating composition; a condensation product of quebrachitol, phthalic anhydride and linseed oil fatty acids was dissolved in white spirit; inositol is heated with linseed oil and the product esterified with phthalic anhydride.
Patent GB-617132-A (GB)
Title: Improvements relating to flexible couplings
IPC: F16D3/72
Filed: 1946-09-17
Abstract: 617,132. Shaft couplings. KUYSER, J. A., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Sept. 17, 1946, No. 27867. [Class 80 (ii)] A coupling for aligned shafts 1, 2 comprises a first laterally flexible shaft 3, rigid with the shaft 2, rigidly connected at 9 to a tubular connection 8 arranged concentrically within a bore of a second shaft 1 and rigid with the annular end of the shaft 1. The invention may be used in cascade, or the driving and driven shafts may both be bored to accept tubular connections 8.
Patent GB-774009-A (GB)
Title: Improvements in or relating to electrical condensers
Inventor: CIANCHI ALFREDO LUIGI GIUSEPPE
IPC: H01G13/00
Filed: 1954-09-27
Abstract: 774,009. Glass. WELWYN ELECTRICAL LABORATORIES, Ltd. Sept. 27, 1954, No. 27879/54. Class 56 [Also in Group XXXVI] An electric capacitor is provided with an outer coating of a glass which is resistant to atmospheric attack, the compositions which may be used being substantially the same as those disclosed in Specification 716,259, and comprising a fused mixture of the oxides of lead, silicon calcium, barium, aluminium, zirconium, lithium, sodium, potassium and boron. Specification 693,461 also is referred to.
Patent GB-975323-A (GB)
Title: 2,4-diamino-5-halogeno-6-chloropyrimidines and their production
IPC: C07D239/48
Filed: 1960-08-12
Abstract: The invention comprises (1) 2,4-diamino-5-bromo -6- chloropyrimidine, and (2) the preparation of 5-chloro- and 5-bromoderivatives of 2,4-diamino -6- chloropyrimidine by treating that compound with the respective halogen in an aqueous alcoholic solution maintained at pH 5-9 using an unreactive inorganic buffer.  According to the Provisional Specification 2,4-diamino -5- bromo -6- chloropyrimidine may also be prepared by bromination with N-bromosuccinimide or by reacting the 6-hydroxy compound with a chlorinating agent such as phosphoryl chloride.
Patent GB-503101-A (GB)
Title: Improvements in and relating to electric protective devices
IPC: H01H73/24
Filed: 1937-10-15
Abstract: 503,101. Switch bases; thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 15, 1937, No. 28143. Convention date, Oct. 17, 1936. [Class 38 (v)] For protecting small consuming apparatus such as hand drilling - machines, vacuum cleaners, and radio sets, an on-and-off hand switch a is mounted on a common frame b together with a thermal switch such as a bimetal strip c with heating coil d and movable contact e normally engaging contact f. The contacts of the two switches being in series, contacts e, f open on overload and do not reclose until the strip c cools, whereupon, if the overload persists, they re-open. An operator of a drill is thus warned to avoid overloading. The thermal switch may operate with a snap action, and is covered by a protective sheet h. The unit may bo incorporated in the apparatus itself and, in the case of a hand-drill, may have a hand-retained, pressbutton switch in place of the lever-switch shown.
Patent GB-224713-A (GB)
Title: Improvements in or relating to apparatus for producing a continuous strip of glass
IPC: C03B17/06
Filed: 1923-11-09
Abstract: 224,713. Pilkington Bros., Ltd., and Waldron, F. B. Nov. 9, 1923. Drawing; rolling.-In apparatus for producing sheet glass in a, continuous strip, the strip is supported, while the surface is hardening, on a layer of air in motion, in order to prevent the surface from being marred by contact with a solid body before it is set. The strip 11, after being formed by any suitable process, is received on a bed 6 on the surface of which transverse grooves are formed. The grooves 7, 8 communicate, by means of holes 9, 10, respectively, in the bed, with two channels one of which is supplied with air under pressure while the other communicates with the atmosphere or with a suction device. The whole of the upper surface of the bed, therefore, is covered with a layer of air in motion from one groove to an adjacent groove, and the strip 11 is supported on this air layer and is prevented from coming into contact with the bed.
Patent GB-354102-A (GB)
Title: Improvements in or relating to bodies for motor vehicles
IPC: B60J7/043
Filed: 1930-09-23
Abstract: 354,102. Road vehicle opening tops. BISHOP, W. H., 48, Moor Street, and COLLEDGE, T. P., 8, Constitution Hill, both in Birming- ham. Sept. 23, 1930, No. 28362. Addition to 322,673, [Class 108 (i), Road vehicles, Body details &c. of]. [Class 108 (i).] In the road-vehicle opening top described in the parent Specification the closing panel is, in addition, provided with rollers to eliminate friction. As shown, the rear edge e of the panel is provided with a central roller q adapted to roll on a strip r on the fixed roof while the front edge d is provided at each side with a roller s adapted, in the rearward movement of the panel, to roll on the upstanding edges of the roof opening. The guides j may also be provided with rollers adapted to be guided in channel-shaped guides k. Locking bolts l, n are provided as shown while rubber buffers may be interposed between the panel and the fixed roof.
Patent GB-1413515-A (GB)
Title: Shuttlecocks
IPC: A63B67/18
Filed: 1972-06-16
Abstract: 1413515 Shuttlecocks M ROBINSON and P COXON 7 June 1973 [16 June 1972 (3) 21 July 1972 1 Sept 1972] 28379/72 28401/72 28402/72 34119/72 and 40620/72 Heading A6S The lengthwise extending stems supporting the skirt of a shuttlecock are of channel section e.g. of C, U or V cross-section, over at least a part of their lengths, the open side of each stem being directed radially inwards to the main axis of the shuttlecock. In one form, the stems 19, Figs. 1, 2, supporting the upper skirt 13 of a shuttlecock formed by injection moulding, are of V-shaped cross-section. A separate base 10 of expanded p.v.c. is attached to a spigot on the skirt. Stems 15 of the lower skirt 14 are of tapered triangular cross-section. In a modification, the upper skirt is discontinuous, adjacent segments being separated along lines 31, Fig. 3. The base 10 is attached to four spigot legs 50, Fig. 4, on the skirt, and encloses a weight insert 53. The skirt may be moulded of a resilient plastics, or fabricated from natural fibres, or fabrics, or paper, &c. The skirt may be fluted.
Patent GB-955224-A (GB)
Title: Spark plug
IPC: H01T13/58
Filed: 1962-07-24
Abstract: 955,224. Spark plugs. GENERAL MOTORS CORPORATION. July 24, 1962 [Aug. 15, 1961 (2)], No. 28398/62. Heading FIB. The earth electrode 2, Fig. 1, of a sparking plug for a rocket or jet engine has electrical connectors 5, 6, connected thereto at spaced points across which a voltage drop occurs when a spark is produced, which voltage may be used to operate an indicator 7 to indicate that the plug is operative. A metal sleeve 8 is spaced from the electrode 2 over the portion between the connectors 5, 6, so that any leakage current due to a faulty insulator 4 is earthed through the sleeve 8 and does not produce a voltage drop across the connectors 5, 6, thereby preventing inaccurate operation of the indicator 7. In Fig. 2 the central electrode 10 is supported in a two part insulator 11, 12 and the earthed electrode 14 has a pair of connectors 18, 19 connected thereto at points 20, 21, which connectors lead to a connection fitting 22. An earthed metallic sleeve 24 shields the portion of the earthed electrode between the points 20, 21 and an outer metallic sleeve 16 prevents stray currents being produced in the wires 18, 19.
Patent GB-1091690-A (GB)
Title: Industrial personnel vehicle
IPC: B60K1/00
Filed: 1966-06-24
Abstract: 1,091,690. Electrically propelled vehicles. AMERICAN - MOBILE PRODUCTS CORPORATION. June 24, 1966 [Sept. 23, 1965], No. 28409/66. Heading B7H. A vehicle for transporting industrial personnel in a factory or warehouse comprises an electric motor 57 energized from a battery 54 through a control circuit, a chain drive 65 connecting the motor to a driven rear wheel 22, an idling rear wheel 66 coaxial with the driven wheel 22, a steerable wheel 16 ahead of and between the rear wheels, and a frame structure 12. The battery 54 supplies the motor 57 through a solenoid relay 67 energized by a foot or manually operated drive switch 23 incorporated in a control circuit (Fig. 6, not shown) including a charging socket 68, an ignition switch 71, an ignition light 70 and a horn sounded by a switch 72. A reversing switch may provide for reversing the polarity of the motor 57. A sprocket 58 on the motor shaft is connected by the chain 65 to a sprocket 61 coupled to the driven wheel 22. Both rear wheels 22, 66 are rotatably mounted on an axle 59 secured in tapering notches 40 in the frame 12 by U-bolts 60. A brake shoe (Fig. 5, not shown) engageable with the tyre on the idling wheel 66 is actuated by a brake pedal 69. The steerable wheel 16 is mounted in a yoke 50 on a tubular support 49 journalled in a vertical column 20 on the frame 12. A shaft 17 carrying a steering bar 18 engages the yoke support 49 within the column 20 and is secured to the column by a collar 53. The frame 12 comprises a platform 37 formed with integral channel edges and provided with longitudinal webs welded therebeneath.
Patent GB-285148-A (GB)
Title: Improvements in or relating to electric couplings
IPC: H01R33/94
Filed: 1926-11-11
Abstract: 285,148. General Electric Co., Ltd., Kaula, R. J., and Quance, F. G. Nov. 11,1926. Ceiling roses.-The flexible leads entering through an aperture 18, 37 in a cover 9, 32 screwing on to the base 1, 22 of a lampholder, coupling, ceiling rose, &c. is gripped between the cover and a projection 15, 31 formed on the 'base, the projection entering and cooperating with the aperture in the cover. In a lamp-holder or adapter, Fig. 1, the projection 15 is formed on a wall 10 that separates the terminals 5 and is formed with hooks, holes &c. 11 and 12 to engage the leads, and with projections 13 to prevent each lead from approaching the opposite terminal. The cover 9 screws on to a thread on the base 1 or on a sheath 3 of metal. In a ceiling rose, Fig. 4, the projection 31 may co-operate with a bush 33 that screws into the aperture 36 in the cover so as to be separately adjustable by a knurled flange 38.
Patent GB-635557-A (GB)
Title: Improvements in or relating to edge filters and emulsifiers
IPC: B01F3/08
Filed: 1946-09-24
Abstract: <PICT:0635557/III/1> In an emulsifier the fluid flow-paths are interstices between parts of mutually - touching curved surfaces which respectively face toward and away from their common generator axis, and are the faces of the convolutions of a strip wound upon itself or of truncated conical washer-like members, one or both of the surfaces of each pair having been rendered rugous directly or indirectly as the result of a chemical etching process.  An element 1, Fig. 1, formed of truncated conical members having one or both surfaces etched, is held in pile formation on a rod 2 between a flange 3 and a nut 5, which screws on a threaded portion 4 of the rod 2 by which also the rod is attached to a projection 9 of a filter body 10.  Fluid to be filtered enters the body 10 and casing 11 through a pipe 16, passes between the member surfaces into the fluid spaces formed by flat portions 6 on the rod 2, through holes 8 into passages 7 and 12, and out through a pipe 13.  An element formed from thin strip or ribbon may be wound spirally in a flat scroll, filtration taking place from one face to the other.  In Fig. 2 the strip or ribbon 24 is wound in helical layer cylinder formation on a frame composed of rods 26 held in end-plates 27, only one of which is shown, one or both being provided with openings 28 for the passage of fluid, and having complementary conical surfaces 29 for the first and last layer.  In Fig. 4 the strip is wound in helical layer cone formation over rods 42 between an end-plate 41 and boss 43.  The boss and end-plate may be shaped to receive the first and last layer, respectively, of the strip; the strip may also be cut at an angle to abut against flanges 44 and 47 on the end-plate and boss respectively.  A chemical etching process is described (see Group XVI].  According to the Provisional Specification the strip or ribbon may be wound edgewise in helical form on an openwork frame with the flat etched surfaces in contact.
Patent GB-1201864-A (GB)
Title: Manufacturing process for metal bonded porous substance, particularly of a tool made of said substance
IPC: B24D18/00
Filed: 1968-06-14
Abstract: 1,201,864. Metal bonding porous compacts by chemical plating. TOYODA MACHINE WORKS Ltd. (TOYODA KOKI K.K.) AND T. ASAEDA. June 14, 1968 [June 16, 1967], No.28599/68. Heading C7F. A metal bonded porous article e.g. a grinding wheel is made by forcibily passing a metal salt solution through a compact of pretreated powder e.g. diamond, "ALUNDUM" (Trade Mark) CARBORUNDUM (Trade Mark) to deposit a metal such as Ni-P, Cu, Co, Ni-Co and Ag. The pretreatment comprises at least one of cleaning, sensitizing with Sn Cl2, actuating with Pd Cl2. Prior to compacting the particles may be coated with Ni, Cu, Co, Ni-Co by vacuum, chemical or gas plating and a further electrolytic coating of Cu, Ni, Ag or Cr may be applied. The particles are compacted in a synthetic resin mould frame 8 with a synthetic resin core 9 and covered with synthetic resin nets 10 and 11. Chemical plating is effected see Fig.5 by sucking the plating liquid through the compact 14 via pump 20. After coating, the resin frame, core and nets are removed and the compact is heated at 300‹ - 500‹ C. in a vacuum or inert gas. A specific Ni coating bath contains NiCl2 .6H2O, NaH2PO2 .H2O, CH3 COONa-3H2O with HCl to a pH of 4À5-5À5.
Patent GB-346646-A (GB)
Title: Improvements in and relating to sound reproducing devices
IPC: H04R19/02
Filed: 1930-09-24
Abstract: 346,646. Loud-speakers; circuits for electrostatic instruments. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kellogg, E. W.; 1185, Ardsley Road, Schenectady, New York, U.S.A.) Sept. 24, 1930, No. 28620. Convention date, Sept. 27, 1929. [Class 40 (iv).] An electrostatic loud-speaker, Fig. 1, comprises a diaphragm divided into a number of sections 10 interconnected through inductance elements 13 to the output circuit of an amplifier 11. The dia. phragm sections may co-operate with a rigid perforated electrode or may, as shown, be arranged between two rigid electrodes 14, 17 which are connected through batteries 16, 19 to one of the amplifier circuits which, for convenience, is designated as the grounded terminal. The rigid plate or plates are preferably formed in corresponding sections interconnected through conductors 15, 18. A damping resistance 12 is provided as shown. Fig. 3 shows a modification in which inductance elements 22, 23 are provided between the sections of the plates 14, 17, the diaphragm being either in the form of a continuous conducting sheet or of separate sections interconnected by conductors 21. In order to ensure maintenance of phase opposition, one or more auto-transformers 25 may be connected at intervals between the plates 14, 17, the mid-points of the windings being connected to conductor 27 to which the damping resistances 26 are connected and which is connected both to the cathode of amplifier 11 and to a mid-terminal on the secondary of transformer 24. The provision of inductance elements as shown serves to neutralize the capacitance between the electrodes and such an arrangement allows a much larger total capacity to be employed without overloading the amplifier and ensures that the impedance of the device is the same at all frequencies within the essential audio range. The phase differences between the several sections of the diaphragm may be utilized to produce a desirable distribution of sound. Fig. 4 shows an arrangement which may be employed for producing a beam of sound which spreads horizontally like a fan. The diaphragm is in the form of vertical strips a .. e, a wavelength or more in height and the strips are interconnected as shown so that the output from the amplifier passes through the strips a, b, c, d, and e in that order. Such an arrangement produces a convex wave front but a concave wave front may be produced by reversing the connections. A perfectly symmetrical arrangement can be obtained by connecting the strips on opposite sides of the middle strip in pairs. In addition or as an alternative to the method employing phase-difference effects, the direction of the sound can be controlled by disposing the radiating elements over a curved instead of a plane surface in which case the diaphragm might be given a cylindrical form.