baber/WOPTO huggingface dataset:
Patent GB-1254258-A (GB)
Title: A circuit arrangement including a relaxation oscillator for alternately providing ringing-tone and supervisory signals to subscriber stations
Inventor: KNAUER HANS ULRICH
IPC: H04M19/02
Filed: 1970-05-21
Abstract: 1,254,258. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 21 May, 1970, No. 24660/70. Heading H4K. A telecommunication exchange circuit arrangement for use with subscriber stations equipped with ringing tone receivers comprises a loop current supervisory device and a ringing- tone generator alternately rendered operative  by an astable relaxation oscillator. As shown, each substation equipment Tln-St includes a microphone M and a receiver F connected via a hybrid termination connected to the line via a switch-hook contact GV when the handset is lifted and a tone receiver R-T on E connected to the line when the handset is replaced. The tone receiver includes a tuned circuit comprising capacitor C3 and transformer Ue3 coupled to a receiver RK by a push-pull transistor amplifier T3, T4. The exchange equipment includes a ringing tone generator R-T on G common to a group of substation lines, loop cutrent supervision circuits SB individual to each subscriber's line and an astable relaxation oscillator MV which alternately enables the tone generator via a switch S1, and enables via a switch S2 a gate A in the output of each circuit SB. Thus, the tone generator and loop current supervisory devices are effective alternately and the supervisory device need not be capable of discriminating against ringing tone and is of simple construetion. As shown, the supervisory device comprises a pair of transistors TA, TB, each arranged to respond to the passage of current through a corresponding resistor in the D-C loop. An output from either transistor supplies one input E1 of an AND gate A which if it simultaneously receives a second input E2 from the oscillator MV produces an off hook indicating MK.
Patent GB-296566-A (GB)
Title: Improved button
IPC: A41F1/00
Filed: 1927-09-20
Abstract: 296,566. Broadbent, H. Sept. 20, 1927. Buttons.-A Lutton 11 is resiliently attached, to permit bodily movement under strain, to a block 8 adapted to slide upwardly against the action of a spring 6 in a casing 5 adapted to be sewn to the garment.
Patent GB-1224139-A (GB)
Title: Electric lamp
IPC: C03C17/02
Filed: 1969-05-14
Abstract: 1,224,139. Electric discharge lamp. OY AIRAM AB. 14 May, 1969 [17 June, 1968], No. 24696/69. Heading C1M. An electric discharge lamp comprises a bulb enclosing an electric discharge tube containing mercury, wherein the bulb is made of glass containing neodymium oxide in an amount (e.g. 5-20% by weight of the glass) sufficient to enable effective absorption of light of wavelength 568-600 mm. The inner surface of the bulb may have a luminescent coating.
Patent GB-379517-A (GB)
Title: Manufacture of mixed yarn from wool fibres and artificial staple fibres
IPC: D02G3/04
Filed: 1931-09-04
Abstract: 379,517. Mixed yarns. GROVES, W. W., 30, Southampton Buildings, London. -(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany.) Sept. 4, 1931, No. 24877. [Class 120 (iii).] A mixed yarn containing wool and artificial staple fibres is made by bringing the wool fibres into parallel relationship, cutting them to the length of the artificial staple fibres, which is 1-2 inches, mixing both kinds of fibres and working up the mixture on a cotton spinning machine. The wool fibres may be carded and cut, and mixed with the artificial staple fibres before combing, or the artificial fibres and the silk fibres may be made into separate slivers which are combined on the drawing frame.
Patent GB-728612-A (GB)
Title: Improvements in and relating to ailerons for aircraft wings
Inventor: CREASEY RAYMOND FREDERICK
IPC: B64C3/54
Filed: 1952-10-03
Abstract: 728,612. Aircraft ailerons. ENGLISH ELECTRIC CO., Ltd. Oct. 2, 1953 [Oct. 3, 1952], No. 24902/52. Class 4. A straight tapered aircraft wing has a sweep back angle of the leading edge and of the inboard portion of the trailing edge of the order of 40 degrees or more, wherein the outboard portion of the trailing edge and the hinge line of an aileron mounted there are substantially perpendicular to the longitudinal axis of the aircraft. As shown in Fig. 2, the leading edge 4 and trailing edge 1 of the wing are swept back, and the outboard portion 2<SP>1</SP> of the trailing edge and the aileron hinge line 3<SP>1</SP> are substantially perpendicular to the aircraft longitudinal axis. The invention is said to maintain the rolling power of the ailerons at transonic and supersonic speed. Preferably, the leading edge is swept back at about 60 degrees, and the trailing edge at about 50 degrees, the aspect ratio being about two and two-thirds, and the mean thickness to chord ratio about one-fifteenth. The aileron chord may be about one-eighth of the wing chord at mid aileron station, and the aileron span be one-fifth to one-fourth of the total wing span. The aileron may be hinged close to its top surface, and its area is suitably one-fourth of the area of the wing ahead of the aileron.
Patent GB-995688-A (GB)
Title: Improvements in or relating to oxygen lances
IPC: C21C5/46
Filed: 1963-06-22
Abstract: 995,688. Blowing lances. D. N. MANTON. May 26, 1964 [June 22, 1963], No. 24929/63. Heading F4B. An oxygen lance 10 in which means are provided for effecting controlled adjustment of the area of its outlet, comprises three coaxial tubes 11, 12, 13 and an end portion 14 having six integrally formed radial fins 15, welded together so that the passageways between the tubes define water return channels. Cooling water passes through a centrally disposed supply pipe 16, having an enlarged frusto-conical steel head 17 containing a U-shaped communicating passage, via a copper-chromium alloy or stainless steel helical coil 18 to the water return channels. An externally threaded portion 22 of the pipe 16 is located in a support 21 attached to a bracket 20 welded to the innermost tube 13, which support 21 is urged against a nut 23 by helical coil 18, so that rotation of nut 23 moves pipe 16 axially to adjust the outlet area of the divergent oxygen stream which flows between tubes 13 and 16, out through the helical gaps between the spirals of coil 18. In a modification (Fig. 1, not shown), the water supply pipe position is adjusted either manually or by remote control by a screw mechanism extending through the lance. In further modifications (Figs. 3, 4, not shown), the pipes 11, 12, 13 define water supply and return passageways and the oxygen flows between pipe 13 and a central rod, fitted with a frusto-conical enlarged head, which is axially adjustable to define with the end portion 14 an annular outlet of adjustable area. The rod may be mounted in an internally threaded support attached by a bracket to the tube 13. The lance end portions 14 may be removable, and means may be provided for feeding other materials as well as oxygen simultaneously through the lance.
Patent GB-771182-A (GB)
Title: A bottom rail for a window, as well as a profile strip for use with said bottom rail
IPC: E06B7/14
Filed: 1955-08-31
Abstract: 771,182. Windows.- VESSEM, M. VAN. Aug. 31, 1955 [Aug. 31, 1954], No. 24955/55. Class 20(3)  A bottom rail 1 for a window frame carrying on its upper edge a profile strip 3 of weatherproof, watertight material, e.g. nylon, provided with a rabbet 8 for acoommodating a pane 9 is characterized in that both of the longitudinal edges of the strip project beyond the bottom rail in a transverse direction, a slanting face 6 on the outer edge merging into a drip flange 12, and a slanting face 7 on the inner  edge being bounded by a beaded edge 13 which on the lower side has a drip flange 14 and on the upper side, with the face 7, forms a small gutter for collecting condensation water. The strip 3 has a downwardly extending flange 5, screwed to it as a separate member, or formed integral therewith, which is nailed within a groove in the bottom rail 1. The pane 9 is secured into the rabbet 8, undercut slightly on the inner side, by means of wooden wedges 11 which are fixed between the pane 9 and a number of uniformly spaced abutments 10 formed integrally with the strip, and by means of putty.
Patent GB-1107810-A (GB)
Title: Improvements in automatic embroiderers
IPC: D05C3/04
Filed: 1967-05-31
Abstract: 1,107,810. Embroidery machines. W. MATHEIS. 31 May, 1967 [10 June, 1966; 18 Aug., 1966. 21 Dec.. 1966]. No. 24974/67. Heading D1G. In automatic embroidery apparatus comprising individual embroidering heads driven by a common shaft 4, and an embroidery frame-actuating pantograph having members 7, 8 extending parallel to shaft 4 and members 9, 9' extending transversely thereto, a group of embroidering heads 1 is arranged between adjacent members 9, 9' and operates upon work held in a single frame 5, shaft 4 is driven by a single gear connection 14, a transverse member 9 extends between a first embroidering head 1a and connection 14, and the distance between head 1a and connection 14 is greater than the movement of members 9 parallel to the axis of shaft 4. The arrangement enables a continuous band of embroidery to be produced on a workpiece. The workpiece is clamped in frame 5 between a rectangular frame (16) made from rod of circular cross section, and a series of spring members (17) of U-shaped cross section mounted on frame 5. To load the latter, frame (16) is correctly located on a table (23), the workpiece is placed upon frame (16) to extend over grooves (22) (28) formed in table (23), one adjacent each lateral side of frame (16), rods (29) (30) are forced into the grooves to stretch the workpiece over frame (16), and frame 5 is pressed upon the latter to engage the U-springs (17) therewith.
Patent GB-151828-A (GB)
Title: Suspenders
IPC: A41F3/00
Filed: 1919-10-13
Abstract: 151,828. Leighton, A. Oct. 13, 1919. Buckles; slides, belt and like.-Suspenders comprise an elastic web member 6 doubled at the back loop 7, the two ends being then passed in turn through three slots of increasing length in a back plate, Fig. 5. Each end is then passed between serrations 17, Fig. 3, and a bent wire 14 to which the serrated plate is pivoted, through a front loop 7, and back over the wire 14 the end being then impaled on points 15 on the wire. Fig. 4 shows an alternative buckle comprising a plate having slots 18 and 19 provided with teeth, a plain slot 20 and a slot 21 co-operating with a pivoted bent wire 9<a> having pointed ends 15<a>. The web is passed through the slots 18 and 21 and impaled on the points 15<a>. It is then passed through the loop 7 and the end passed through the slots 19, 20. The wire 9<a> may be omitted if desired, in which case the slot 21 is provided with barbs or prongs.
Patent GB-687934-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: JESSUP ALFRED CLAUDE
IPC: C22C23/00
Filed: 1949-09-29
Abstract: A magnesium-base alloy has the following composition: Li at least 5.7 but less than 10.3 per cent, Zr 0.4-0.9 per cent, one or more rare earth metals 0.5-15.0 per cent, Mg, at least 70.0 per cent, the remainder.  The alloy may also include one or more of the following elements: Zn up to 12.0 per cent, Cd up to 20.0 per cent, Th up to 10.0 per cent, Hg up to 10.0 per cent, Ag up to 10.0 per cent, Ba up to 2.0 per cent, Sr up to 2.0 per cent, Ca up to 2.0 per cent, Pb up to 2.0 per cent, Be up to 0.1 per cent, Na less than 0.1 per cent. Specifications 511,137 and 637,040 are referred to.  Reference has been directed by the Comptroller to Specification 652,223.
Patent GB-320473-A (GB)
Title: Improvements in the manufacture and production of valuable hydrocarbons and in particular those of low boiling point range
IPC: C10G1/06
Filed: 1928-08-31
Abstract: 320,473. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 31, 1928. Hydrogenation, destructive.-In a multi-stage process of destructive hydrogenation of carbonaceous materials, the residual material not appreciably affected by the first stage treatment is separated and treated under more vigorous conditions. The intensification of the treatment may be carried out by an increase of temperature or pressure, or by an increase in the partial pressure of the hydrogen, or by the employment of a more active catalyst. The materials may also, between successive stages, be subjected to physical or chemical treatment such as oxidation by an air current, condensation with aluminium chloride, extraction by solvents, or the action of an electric discharge. A topped American crude oil, containing 80 per cent of a non-distillable residue, is treated with hydrogen and a tungsten catalyst at 400‹ C. and 200 atmospheres pressure whereby 20 per cent is converted into light oils which are drawn off in the vapour state. The residue is treated with hydrogen at 450‹ C. and 200 atmospheres in. the presence of molybdenum and chromium; a further 50 per cent is thus converted into light oils and removed. The residue is atomized with hydrogen at 460‹ C. over a molybdenum-zinc catalyst; 70-80 per cent of this fraction is converted into light oils. Specification 309,859 is referred to.
Patent GB-599993-A (GB)
Title: Improvements in flexible-hose couplings
IPC: F16L35/00
Filed: 1945-09-27
Abstract: 599,993. Hose end-fittings. CARLING, E. C. Sept. 27, 1945, No. 25082. [Class 99 (i)] [Also in Group XXXVI] A hose end-fitting of the type described in Specifications 557,580 and 558,319 in which an external metal sleeve 1 is reduced in diameter to compress the hose 4 on to an internal tubular insert 2, is characterised by the fact that electrical continuity is maintained between the sleeve 1 and the metallic reinforcement 10 of the hose by means of one or more metal plugs 17 inserted in recesses formed for their reception in the hose ; the plugs are preferably cylindrical and are in intimate contact with the sleeve and the reinforcement when the former is reduced on to the hose ; 5 is a deformable metal washer.
Patent GB-433098-A (GB)
Title: Electric contact for maintaining the movement of electro-magnetically oscillated balance wheels
IPC: G04C3/04
Filed: 1934-08-31
Abstract: 433,098. Electric clocks. DELVINIOTTI, J. T., 5, Avenue du Colonel Bonnet, Paris. Aug. 31, 1934, Nos. 25145 and 25146. Convention dates, Sept. 5, 1933 and June 12, 1934. [Class 139] [See also Group XXXVII] An electromagnetic interrupter for controlling the operation of an electromagnetically-oscillated balance wheel comprises co-operating contacts carried by blade springs and arranged with their axes perpendicularly to each other the contacts being operated by inclined cams carried by the balance wheel spindle which engage a guide member controlling the movements of the relatively movable contact, which guide member is itself resiliently supported. As shown in Figs. 1 and 2 the guide member 4, which serves also as the moving contact, consists of a rod supported and extending in line with a resilient blade spring 5 which is strengthened by a second blade spring 6. The co-operating contact 8 consists of a rod 8 extending transversely to the rod 4 and carried by a blade 9 which normally rests on the bent-over end of a rigid support 10. During the oscillations of the balance wheel the member 4 is engaged in turn during opposite movements by cams 3, 3<a> which bring the contacts 4, 8 into engagement during a portion of each direction of oscillation so completing the circuit of the operating electromagnet. In modified arrangements described the movable contact may be separate from and separately supported from the guide member or may be mounted on the guide member. The transverse contact may be arranged to engage simultaneously two longitudinal contact members and may be thermally and electrically insulated from the guide member so that the latter is unaffected by sparking at the contacts and any lubricant between the guide member and the operating cams does not affect the contacts. Numerous arrangements of cams are also described of varying lengths and of equal and unequal angles from the axis of equilibrium. A lengthened contact closure may be ensured by a horizontal extension of the inclined cam projections. The cams may consist of metal or insulating strips secured in inclined saw cuts in a sleeve mounted on the balance wheel spindle.
Patent GB-1387020-A (GB)
Title: Dynamoelectric machines with liquid cooled rotors
IPC: H02K9/00
Filed: 1972-05-30
Abstract: 1387020 Hoses WESTINGHOUSE ELECTRIC CORP 30 May 1972 [8 July 1971] 25222/72 Heading F2P [Also in Division H2] A hose member 23 comprises a plastics tube 30 having metal end fittings 31 and a housing 36 of resin-impregnated glass filaments surrounding the tube and at least a part of each end fitting. In the embodiment described the tube 30 is of polytetrafluoroethylene and has a nylon braid cover 34. A layer 35 of glass filaments is applied over the tube 30 and end fittings to provide a smooth surface for the application of the epoxy resin impregnated glass filaments forming the housing 36. The end fittings 31 are preferably of stainless steel. The tube 30 may alternatively be of nylon or polyethylene.
Patent GB-827684-A (GB)
Title: Improvements relating to holders for tubular electric lamps
Inventor: COOK SIDNEY ARTHUR
IPC: H01R33/08
Filed: 1957-08-09
Abstract: 827,684. Lamp-holders. SIEMENS EDISON SWAN Ltd. July 21, 1958 [Aug. 9, 1957]; No. 25236/57. Class 38 (1). A holder for a tubular discharge lamp having a pair of spaced contact pins projecting from each end comprises an insulating socket-member 1 (Fig. 1) having a Y-shaped slot 3a, 3b, and with spring contact members 6 secured by terminal screws 7 on its rear face, intermediate curved parts 6a of members 6 engaging the lamp contact pins when they are inserted in the slot branches 3a, 3b. The free ends of members 6 are received in small recesses 9 in the base of socket member 1 which floats in an insulating housing 2 under the pressure of two helical springs 10 held in compression between the inner face of housing 2 and the rear face of member 1. Housing 2 has a tubular extension 19 by which it can be secured to either end of a rectangular tubular spinal member of a fluorescent lighting fixture by a screw passing through a hole in the spinal member and an aligned hole 20 in extension 19 to engage a spire nut in a groove 21 in extension 19.
Patent GB-1004600-A (GB)
Title: Variable resistors
Inventor: SIMPSON WILLIAM EDWARD
IPC: H01C10/32
Filed: 1963-06-26
Abstract: 1,004,600. Variable resistors. GENERAL MOTORS Ltd. June 4, 1964 [June 26, 1963], No. 25331/63. Heading H1S. A device intended for controlling the speed of a windscreen wiper motor by varying the resistance of the field winding circuit comprises a housing 1 having apertured webs 5, 6 in which an hexagonal shaft 2 may both slide and rotate. A contact member 3 rotatable with the shaft comprises, Fig. 6, a metal plate 14 coated on one face with insulating material 15, a number of resistors 16 (only one shown) being printed on the material, these resistors being terminated at one end by contact-engaging portions 31. An annular contact-engaging portion 30 is also printed on the material 15. An insulating sleeve 10 rotatable with the shaft 2 has a pair of grooves 35, 36 engageable by a spring-biased ball 37 for locating the shaft in two positions, the shaft rotation being positively limited by a stop on the sleeve 10 (Fig. 1, not shown) co-operating with a stop on the housing 1. Resilient contact arms 28, 29 respectively engage the annular contact 30 and the succession of contacts 31, the arms being connected to terminals 26, 27 mounted on an insulating plate 19. A further contact arm 22 electrically connected to the arm 28 has a free end 32 engaging the edge of the plate 14 except when a recess 34 in the plate is opposite thereto. In operation, in clockwise rotation of the shaft 2 from the " off " position in which the arm end 32 is opposite the recess 34 the arm 29 engages successive contacts 31 to progressively increase the resistance of the motor field circuit and thereby increase the motor speed. Sliding motion of the shaft 2 causes actuation of the pump plunger of a windscreen washer (not shown) secured to a boss 9 of the housing 1.
Patent GB-1241257-A (GB)
Title: Improvements relating to electrically conductive heating rings
IPC: H05B6/36
Filed: 1969-05-19
Abstract: 1,241,257. Induction heating apparatus. GENERAL ELECTRIC CO. 19 May, 1969 [3 June, 1968], No. 25363/69. Heading H5H. [Also in Division B3] An electrically conductive heating ring 13a is mounted in a hollow cylinder 16 in contact with the inside thereof to form an induction heater roll. A number of concentric rings are so mounted to provide predetermined heating profiles. Each ring is made of copper, brass or, preferably, chrome copper and a join giving electrical continuity throughout the circumference of the ring is achieved by coating the ends of the ring before closure with a precious metal, e.g. silver, gold or platinum. The effect of the heat when in use bonds the ends of the ring together.
Patent GB-615727-A (GB)
Title: Improvements relating to the manufacture of targets for cathode ray tubes
IPC: H01J29/14
Filed: 1945-09-29
Abstract: 615,727. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 29, 1945, No. 25371. Convention date, Sept. 29, 1942. [Class 39 (i)] A target of a cathode-ray tube is made by condensing an alkali halide or magnesium oxide on to a support whilst subjecting the material simultaneously to bombardment by electrons, ions, alpha particles, photons, X-rays, or gamma rays, so as to control the opacity of the material deposited on the support. The alkali halide used is preferably potassium chloride, which may contain a small amount of thorium chloride, hydroxides, or traces of cadmium or magnesium. The mixture is placed in a platinum container 12, Fig. 1, and heated by a coil 14 to vaporize it on to the tube wall 6 or on to a separate transparent support adjacent to the wall 6, the pressure being kept at 10<-4> mm. Hg. Simultaneously, the wall 6 is scanned by an electron beam from gun 8, the electron velocity and current density being variable to vary the opacity of the target. The final target may have alternate layers of transparent and translucent material, in which case an intermittent electron bombardment is used, and in this case the varying heat of bombardment may also vary the transparency of the target. Alternatively, pattern markings or indicia may be produced, the indicia being opaque or transparent, by scanning only certain areas of the target. A similar result may be obtained by a removable mask which shields certain parts of the target from electron bombardment. The indicia may be formed in one or more of the multiple layers, and two sets of indicia may be used in the outer layer of each side of the target. The target may in use be viewed by reflected or transmitted light. Schmidt optical systems may project the " image " on to a viewing screen. Specification 621,729 is referred to.
Patent GB-1315145-A (GB)
Title: Production of a cathode stabilised collimated plasma arc
IPC: H05H1/34
Filed: 1970-05-27
Abstract: 1315145 Welding by fusion; plasma arc cutting AIR PRODUCTS & CHEMICAL Inc 27 May 1970 [9 June 1969] 25378/70 Headings B3R and B3V [Also in Division H5] A collimated plasma arc 36, for welding or cutting metal workpieces 16, is obtained by " cathode stabilization ", in which an elongated, hollow tubular cathode 10, open at both ends 14, 15, is surrounded with arc gas such that a quantity flows up into the cathode and causes the arc spot to locate on the interior wall of the cathode at 38. The upward gas flow is obtained using a surrounding structure 18 defining a plenum chamber 34 and an orifice 22, or end 14 is surrounded by arc gas and a Venturi rear end 15 causes the required flow into the cathode. The arc is struck initially between the cathode 10 and structure 18, rear orifice 22, and may then be transferred to the workpiece 16, in known manner, using switches 30, 32. The cathode is of tungsten or thoriated tungsten, or of iron, carbon, alloyed or unalloyed steel. The generator may be used for chemical processing, Fig. 2, shows a gas-shielded welding torch in detail, with the hollow cathode 40.