baber/WOPTO huggingface dataset:
Patent GB-1069228-A (GB)
Title: Improvements in or relating to the refining of glass
IPC: C03C3/00
Filed: 1965-11-17
Abstract: In the production of platinum-free glass melt, particularly for laser glass, the glass batch is fired in a platinum-lined furnace in a nitrogen atmosphere.  The batch is first reacted in a ceramic lined furnace to remove carbon, nitrogen or water when present, the melted batch then being poured through a surrounding chamber into the platinum-lined furnace, the chamber being already cleared of oxygen and the nitrogen atmosphere maintained throughout firing, which may be assisted by platinum-plated stirring means for removing striae and bubbles.  The laser glass may then be drawn out into a rod or cast into a rod-shaped mould. A laser glass composition is given in weight percentages:  SiO2, 67.1; Na2O, 7.2; K2O, 10.9; BaO, 4.8; Sb2O3, 1.0; Al2O3, 1.5; ZnO, 1.5; Nd2O3, 5.0; Li2O, 1.0.
Patent GB-1073540-A (GB)
Title: Improvements in or relating to clamps
IPC: F16L3/10
Filed: 1964-12-02
Abstract: 1,073,540. Brackets. R. J. HOSLER. Nov. 24, 1965 [Dec. 2, 1964], No. 48898/64. Heading A4B. [Also in Division E2] A clamp for securing a cylindrical member of particular outside diameter to a support, comprises a base member 1 that can be secured to the support, a clamping member 2 for clamping a cylindrical member of said particular outside diameter in the clamp between opposing faces of the clamping member and the base member and a fastening member 3 engageable with the clamping member for fastening the clamping member in a clamping position, the clamping member and the fastening member being pivotally attached separately of one another to the base member such that with the clamping member disposed in an open position in which it is clear of the fastening member, a cylindrical member 6 of said particular outside diameter can be placed in the clamp, the clamping member can be pivoted from its open position to a position in which it is closed about the cylindrical member 6 so that the cylindrical member is contained between said opposing faces, and the fastening member can then be pivoted into engagement with the clamping member to fasten the clamping member in its closed position, the arrangement being such that simultaneously with its engagement with the clamping member to fasten the clamping member in its closed position the fastening member exerts force on the clamping member to cause the clamping member to bear upon the cylindrical member whereby, the cylindrical member is clamped in the clamp. In the construction shown the clamping member is U-shaped so that in its closed position it partly surrounds the cylindrical member 6 and both the fastening member and the free end portion of the clamping member are each formed as a hook the two hooks being arranged to engage with one another when the fastening member engages the clamping member in its closed position. A stop 9 is provided to limit the pivotal movement of the fastening member so that it cannot interfere with the insertion of the cylindrical member 6 and both the clamping member and fastening member are connected to the base member by means of pins 2a, 3a which engage in slots in side flanges of the base member. The two hooks can be disengaged by means of a screw driver and a rib 10 is provided on the clamping member to facilitate this.
Patent GB-1020023-A (GB)
Title: Improvements in and relating to containers for media under pressure
IPC: B21F3/06
Filed: 1962-12-31
Abstract: 1,020,023. Coiling; making rocket motor casings and pressure vessels. CONTRAVES A.G. Dec. 31, 1962 [Jan. 30, 1962], No. 49028/62. Headings B3A and B3E. [Also in Divisions F2 and F3] A container for media at high pressure is made by placing rolled strips 11, 12 &c. of high quality spring steel lengthwise of a rotatable mandrel with their adjacent edges in contact and then winding steel wire under tension around the strips, adjacent turns 21, 22 &c. being bonded together by a metal adhesive, e.g. an epoxy resin composition cured by infra-red radiation. Further alternating layers of metal strip and wire are built up until the casing has the required thickness. Preferably end pieces 31 having a stepped rim are detachably fitted to the ends of the mandrel before building up the casing, the mandrel afterwards being dismantled within the finished chamber. The stepped formation of the end piece may be on the inner surface as in Fig. 1 or on the external surface. Alternatively the end piece 32 may be shaped as in Fig. 2 (not shown) with tapered seatings 320, the metal strips 11 being reduced at the ends to fit without overlapping. Instead of metal, the strips may be made of drawn glass filaments placed side by side lengthwise of the strip and stuck together. A drawn glass filament is then wrapped around the strips in place of the steel wire.
Patent GB-1210049-A (GB)
Title: Improvements relating to discharge flash lamps
Inventor: WAYMOUTH JOHN F
IPC: H01J9/20
Filed: 1969-10-09
Abstract: 1,210,049. Discharge lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 9 Oct., 1969 [9 Oct., 1968], No. 49706/69. Heading H1D. An internally triggered discharge flash lamp comprises an elongated envelope of Na containing glass having an electrode at each end of the envelope and a band of Na on the inner surface of the envelope extending between positions adjacent each electrode. The tube is Xe filled and the band is helical. To form the band a Cu wire is wound around the tube and a D.C. positive potential applied to the wire whilst a discharge is struck in the tube heated to 200‹ C. in an oven. The potential on the wire causes Na ions to migrate to the inner surface. During starting the band provides a low resistance path and concentrates the discharge in small areas of the gas. The band also provides electrons by photoelectric and ion bombardment emission and serves as a getter. The lamp is used in photography, photocopying and laser pumping.
Patent GB-1157374-A (GB)
Title: All-Wheel Drive Vehicles
Inventor: GARRETT DWIGHT AMSLER
IPC: B62D53/02
Filed: 1967-11-02
Abstract: 1,157,374. All-wheel-drive vehicles. GARRETT ENUMCLAW CO. 2 Nov., 1967, No. 49808/67. Heading B7H. In a tractor comprising front and rear frame sections 10, 11, each having two driven wheels and being pivoted respectively at 16, 17 to an apertured centre section 13 so as to be swingable by hydraulic rams 24, 26 and 25, 27 for steering, the vehicle engine and its speed-reducing mechanism (not shown) is on the front section 10 and drives the input shaft 37 of a transfer case 35, which has an output shaft 38 driving the front axle differential, and which drives via a brake drum 40 and a universal 39 three shafts 33 and 34, 30, and. 33 and 34 interconnected by universals 32 and driving via 36 the rear axle differential, the shaft sections 33 and 34 being telescopingly splined together. Both wheel axles are live, and one axle is fixed on its frame section, while the other is fixed on a cradle rotatable about a longitudinal axis on the other frame section.
Patent GB-1134047-A (GB)
Title: Actuating mechanism for portable recording apparatus
IPC: G11B19/22
Filed: 1966-11-08
Abstract: 1,134,047. Gramophones. GENERAL ELECTRIC CO. 8 Nov., 1966 [3 Jan., 1966], No. 49974/66. Heading G5R. A portable gramophone comprises a recording arm 19, Fig. 5, a playback arm 23, and a cable 163 under tension and passing under a button 35, round the support post 91 of the recording arm, round the support post 93 of the playback arm and secured to one end of an L-shaped lever 167, the upper end of which is pivotally connected to one end of a lever 177, the other end of which is connected to a spring 185 and rotatably supports a wheel 183 engaging a turntable 15 and the driving spindle (55, Fig. 4, not shown) of a motor 17. When the button 35 is depressed the assembly of cable 163 and levers 167 and 177 pulls the wheel 183 out of engagement with the driving spindle and the turntable and so stops the latter. When the recording arm 19 is moved to its rest position it depresses the actuator 113 of a switch 109, Figs. 5 and 7, which comprises a movable contact 117 engaging contacts 115 connected to an electronic circuit so that when the contact 117 is in its upper position the recording circuit is energized and when the contact is in its lower position, when the actuator 113 is depressed, the playback circuit is energized. A braking mechanism 131, Fig. 8, is provided to increase the load on the driving motor during the playback mode so that the speed of rotation during playback is substantially the same as that during recording. A brake shoe 137 engaging the turntable drum 59 is secured to the end of a resilient arm 133 which is mounted in cantilever fashion on a part 135 and an actuator 139 having a vertical portion 145 is secured to the arm 133 so that when the playback arm is moved to its rest position its outer edge engages the vertical portion 145 and the brake shoe 137 is pulled out of engagement with the turntable. The top of the turntable is formed with a rectangular recess in which seats a record having the shape of a rectangle with rounded comers (Fig. 2, not shown).
Patent GB-1365791-A (GB)
Title: Method for eypanding tobacco stems
IPC: A24B5/16
Filed: 1972-10-30
Abstract: 1365791 Puffing tobacco stems PHILIP MORRIS Inc 30 Oct 1972 [4 Nov 1971] 49984/72 Heading A2C Tobacco stems are puffed by crushing and then cutting them to cigarette filler dimensions, adding moisture to the cut stems so that they contain from 24 to 60% moisture, and then intimately and rapidly contacting the moistened stems with a hot gaseous medium, comprising at least 30% by volume of steam, at a temperature in the range of 250 to 750F. for 0.5 to less than 3 seconds. The moistening of the crushed cut stems may be effected with steam or water.
Patent GB-1530329-A (GB)
Title: Reactor for the pressure gasification of coal
IPC: C10J3/42
Filed: 1975-12-05
Abstract: 1530329 Rotary grates for gasifiers METALLGESELLSCHAFT AG 5 Dec 1975 [3 June 1975] 50099/75 Heading F4B A reactor for pressure gasifying coal includes a rotary conical grate 3<SP>1</SP> consisting of two concentric parts 3a, 3b which are rotatable independently of each other. The inner part 3a comprises a bearing 4 connected to a gear 5 meshing with a pinion 6 which is connected to a drive shaft 7. The outer part 3b is provided with a separate drive means comprising a shaft 19 which carries a pinion 20 in mesh with a gear 21 connected to a bearing 16. Gasifying agents in the form of oxygen and steam are supplied to the grate interior through a pipe 22; baffles 23, 24 ensure uniform distribution of said agents. Cooling water is passed between inner and outer shells 2 and 1 of the reactor, with the steam produced as a result of heating of said water being introduced as a gasifying agent into the reactor. The surface of the inner shell 2 flares downwardly conically at least in the region adjacent the grate. Ash formed in the coal bed during gasification is discharged with aid of one or more scrapers 27, and is removed through an outlet 28 by means of an ash look. Two concentrically disposed pipes (22, 29, Fig. 2, not shown) may be provided for feeding gasifying agents of different compositions into the reactor, one of said pipes (22) supplying gasifying agent into the space between the relatively movable inner and outer parts (3a, 3b) of the grate. A further conduit (31, Fig. 3, not shown) through which steam is fed may be provided to cool and protect the grate bearings (4 and 16).
Patent GB-1142445-A (GB)
Title: Azo dyestuffs
Inventor: KRUCKENBERG WINFRIED
IPC: C09B29/08
Filed: 1967-11-03
Abstract: 1,142,445. Monoazo dyes. FARBENFABRIKEN BAYER A.G. 3 Nov., 1967 [28 Nov., 1966], No. 50115/67. Heading C4P. The invention comprises monoazo dyes of general formula wherein R and R<SP>1</SP>, which may be the same or different are CH 3 , NO 2 , Cl, Br, CN, CF 3  or C 1 -C 4  alkyl-sulphonyl radical, p is 0 to 3, R 2  is H, alkyl, alkoxy or halogen, R 3  is H, alkyl or alkoxy, and R 4  is optionally substituted alkyl, e.g. -(CH 2 ) n OCOR 5 , -(CH 2 ) n OH, -(CH 2 ) n  COOR 5  or C 2 -C 4 -alkylene-X wherein X is CN, halogen, alkoxy or OCOOR 5 , n is 3 to 5, and R 5  is an optionally substituted C 1 -C 4  alkyl group. They are prepared by diazotization and coupling. The dyes give yellow, orange, red, pink, brown, scarlet and violet shades on hydrophobic materials, e.g. polyethylene terephthalates, polyamides, polyacrylonitrile and cellulose acetates.
Patent GB-1184275-A (GB)
Title: Quenching Process and apparatus
IPC: C21D1/63
Filed: 1968-10-23
Abstract: 1,184,275. Quenching. MONSANTO CO. Oct.23, 1968 [Oct. 24, 1967], No.50305/68. Heading C7N. A process for quenching hot metal uses a system comprising an organic liquid quenchant denser than water, a wash solution floating on the organic liquid and means for confining the wash solution so that it covers only part of the surface of the organic liquid, the hot metal being introduced into the organic liquid and, after quenching, withdrawn through the wash solution. An aqueous quenchant may cover that part of the organic liquid surface not covered by wash solution the hot metal being introduced into the bath through the aqueous quenchant before passing through the organic liquid and the wash solution. The organic liquid is suitably a chlorinated bi-phenyl containing 5-60% of combined chlorine or a blend thereof with not over 50% of an oil or another chlorinated aliphatic or aromatic hydrocarbon, the blend containing 5-60% of combined chlorine. The wash solution is preferably an aqueous alkaline solution which may contain sodium carbonate, phosphates, silicates and/or hydronide. Pyrophosphates and polyphosphates as well as soaps and synthetic detergents, preferably non-ionic detergents may be included.
Patent GB-1216959-A (GB)
Title: Improvements in or relating to radiator valves
Inventor: NILSSON SVEN DAVID FERDINAND
IPC: G05D23/13
Filed: 1969-10-14
Abstract: 1,216,959. Valves. MARKARYDS METALLARMATUR A.B. 14 Oct., 1969 [22 Oct., 1968], No. 50369/69. Heading F2V. A radiator valve has a hot water inlet 2 from which water is directed via lift valve member 22 to a radiator feed line 8 or, via plug 23, 24 to a carry-over line 3 which also receives water returning from the radiator via line 9. Plug 23, 24 provides pressure balance for member 22 and is profiled such that the total flow through inlet 2 remains constant. Water flowing around plug 23, 24 provides an injector effect upon water returning from the radiator. A thermostat or control handle mounted at 35 engages stem 21 to position the latter against spring 29. The maximum rightward travel is variable by socket 26.
Patent GB-1360785-A (GB)
Title: Hot work die steel
IPC: C22C38/08
Filed: 1970-10-23
Abstract: 1360785 Die steel NATIONAL RESEARCH DEVELOPMENT CORP 25 Oct 1971 [23 Oct 1970] 50412/70 Heading C7A A hot work die steel contains: The impurities include P and S in quantities up to 0À06%. The steel may be austenised at 1020‹C and oil quenched. It may also be tempered at temperatures up to 650‹C.
Patent GB-1201478-A (GB)
Title: Improvements in or relating to filing folders
Inventor: RIDING HOWARD CHARLES
IPC: B42F7/04
Filed: 1967-11-07
Abstract: 1,201,478. Card holders. H. C. RIDING. 6 Feb., 1969 [7 Nov., 1967], No. 50469/67. Heading A4G. [Also in Division B6] A filing folder (see Division B6) or a card holder, having a pair of covers 1, 2, Fig. 3, which when juxtaposed are operable about either of the longitudinal marginal edges 3, 5 or 4, 6, is made from a blank in which the covers 1, 2, Fig. 1, having respective first marginal edges 3, 5 and second marginal edges 4, 6, are connected by first means 7 extending between the first and second marginal edges 5, 4 of the respective covers 1, 2 and by a second means 8 extending perpendicularly from the second marginal edge 6 of the cover 2. The blank is formed into a filing folder or card holder by folding the cover 1 under the connecting means 7, then folding the connecting means 8 over the cover 2 and finally attaching the free ends of the connecting means to the under surface of the cover 1. The folder or holder may be made from sheet metal and the connecting means 7, 8 associated with hinges.
Patent GB-1172375-A (GB)
Title: An Improved Wet Developing Apparatus for Developing Electrostatic Image with Liquid Developer
IPC: G03G13/10
Filed: 1966-11-10
Abstract: 1,172,375. Electro-photographic developing apparatus. IWASAKI TSUSHINKI CO. Ltd. Nov. 10, 1966 [Dec.7, 1965], No. 50519/66. Headings G2A and G2H. An apparatus for wet developing an electrostatic image on a photo-sensitive surface with a developing liquid comprises a means for uniformly covering said surface bearing said image with a pre-treatment liquid e.g. bath 9 or roller 13 and bath 9, means for developing said pretreated photo-sensitive surface with a developer liquid e.g. bath 10 or roller 13a and bath 10, and a pair of elastic rollers 12, 13 for squeezing out excess pre-treatment liquid and a pair of elastic rollers 12a, 13a for squeezing out excess developer liquid, said pairs of elastic rollers having an electrical volume resistivity not higher than 10<SP>10</SP> ohm cm. and a D.C. not lower than 5À0.
Patent GB-1119087-A (GB)
Title: Current-limiting fuse having an impact member to sever mechanically ribbon extensionsof current-limiting elements
IPC: H01H85/38
Filed: 1966-11-11
Abstract: 1,119,087. Electric cut outs. S. & C. ELEC. TRIC CO. 11 Nov., 1966 [27 Jan., 1966], No. 50670/66. Heading H2G. A cartridge fuse generally similar to that described in Specification 1,108,108 is additionally provided with a member arranged to mechanically sever the auxiliary fuses on blowing of the main fuse. As shown the member 91 is carried on the indicator tube 68. When the main fuse 63 blows the indicator tube 68 is released and is forced outwardly by the spring 75 causing impacting edges 97 of the member 91 to sever the exposed extensions 53 of the auxiliary fuses. The spark gaps are formed between metal terminals 47 and the tube 19. The member 91 may be made of ceramic material and has a cylindrical body portion having an annular groove 93 by which it is secured in the enlarged lower end of the indicator tube 68.
Patent GB-507005-A (GB)
Abstract: 507,005. Starting prime movers. SCINTILLA. Ltd. Sept. 3. 1937, No. 24107. Convention date. Sept. 4, 1936. [Class 38 (iv)] [Also in Group XXVII] In an engine starting and current generating installation, in which a starting motor 1 drives the engine shaft 18 through toothed reduction gearing having wheels permanently in mesh. and is driven as a generator at the speed of the shaft 18 when the engine is running, a rotatable member 12 of the gearing is held stationary during starting by an electromagnetic friction brake 24, and is afterwards coupled to the shaft 18 through an electromagnetic friction clutch 20. As shown in Figs. 1 and 2, the gearing comprises pinions 9, 10 rigidly connected to each other and rotatable in a carrier 7 keyed to the armature shaft 3 of the motor 1. The pinion 9 meshes with internal teeth 11 in the rotatable drum 12, and the pinion 10 with an internally toothed gear 14 connected by an elastic coupling with the engine shaft 18. The elastic coupling comprises compression springs 38 between abutments 35, 37 on a member 17 on the hub of the gear 14 and on a housing 36 integral with the shaft 18. The friction clutch 20 is connected to the drum 12 and to the armature 23 of an electromagnet 19 by pins 21 and is normally engaged with the gear 14 by springs surrounding the pins 21. During starting, the clutch 20 is disengaged by the alteration of the electromagnet 19, and the friction brake 24 is engaged with the drum 12 by an electromagnet 26. The control circuits of the starting motor and the electromagnets 19, 26 are indicated in Fig. 7. On closing a manual switch 56, a coil 55 actuates a switch 42 to close the circuits of the electromagnets 19, 26 and of a field wind. ing 43 in series with the motor armature 4. The friction brake 24 is thus engaged and the clutch 20 disengaged, so that the engine shaft 18 is driven through the reduction gearing. When the engine starts and picks up speed, a centrifugal member 27 oxi the shaft 3 engages a ring 31, which opens a switch 58 in the circuit, of the electromagnet 26, so that the brake 24 is released and the motor runs idle. On opening the manual switch 56, the switch 42 breaks the circuits of both electromagnets and the clutch 20 is engaged by its springs ; the gearing is thus locked and the motor driven from the shaft 18 as a generator at engine speed. A switch 46 controlled by a voltage coil 47 and a current coil 48 closes as soon as sufficient voltage is generated, and opens a switch 57 preventing the coil 55 from being switched into circuit while the engine is running. In modifications, (a) the coupling electromagnet is arranged to couple the drum 12 to the wheel 14 when switched on; the switch 42 controls separate contacts in the circuits of the two electromagnets, and a separate manual switch allows the coupling electromagnet to be switched off on stopping the engine ; (b) the brake is arranged to be released when the brake electromagnet is switched on ; (c) locking of the gearing is effected by coupling the drum 12 to the shaft 3 ; (d) the housing 36 is geared by a belt to the engine shaft.
Patent GB-1194688-A (GB)
Title: Method of Making Welded Connections Between Thermoplastic Articles
IPC: F16L13/08
Filed: 1967-11-08
Abstract: 1,194,688. Seaming. ATLANTIC RESEARCH CORP. 8 Nov., 1967 [13 Jan., 1967], No. 50810/67. Heading B5K. [Also in Division F2] Two shaped articles 10, 12 of thermoplastic resin are welded together by interfitting the articles 10, 12 with a welding sleeve 11, consisting of a heating conductor enclosed in a layer of thermoplastic resin, lying therebetween, electrically heating the conductor to melt the thermoplastic resin of the sleeve 11 and a portion of the articles 10, 12 adjacent thereto, applying external pressure to the articles 10, 12 to squeeze the articles and the sleeve 11 together to ensure intimate contact therebetween during the melting of the thermoplastic resin, and continuing heating until the thermoplastic resin of the sleeve 11 and the articles adjacent thereto has melted sufficiently to weld the articles together. In the embodiment shown, a joint is formed between a pipe 10 and a pipe fitting 12. The sleeve 11 is made by winding a strand of wire covered with thermoplastic material into a core and then fusing the strands together. The pipe 10 is inserted into a deep bore 17 in the fitting 12 and the sleeve 11 is positioned around the end thereof and accommodated in a shallow bore 18 in the fitting 12 so that electrical supply leads 19 extend outwardly. External pressure is applied by a clamp 13 located around the portion to be welded. The clamp 13 comprises a threaded T-handle 14 and an associated quick-release fastener 15. After tightening of the clamp 13, electrical power is applied to the leads 19 to effect welding. Approximately half-way through the heating step the clamp 13 is tightened further to eliminate air bubbles in the weld and to compensate for improper sizing between the pipe 10 and the fitting 12. In a modification (not shown), the sleeve 11 is moulded to one of the articles to be joined, e.g. around the exterior of the pipe 10 or in the bore 18 of the fitting 12.