baber/WOPTO huggingface dataset:
Patent GB-984194-A (GB)
Title: Improvements in or relating to the production of diamonds
IPC: H01B1/04
Filed: 1961-05-26
Abstract: <PICT:0984194/C1/1> Synthetic diamonds containing boron and/or aluminium are produced by reacting under conditions of high pressure and temperature, e.g. above 50,000 atmospheres and above 1200 DEG C., a non-diamond carbonaceous material; a metal catalyst consisting of one or more of the metals of Group VIII of the Periodic Table, chromium, manganese, or tantalum; and boron and/or aluminium, or a material which decomposes or reacts under the reaction conditions to provide at least one of these elements.  The boron is preferably present in the reaction mixture in an amount not exceeding 20% by weight of the graphite and the aluminium in an amount not exceeding 25% by weight of the graphite.  The diamonds produced are electrically conductive and may be coloured.  Their resistivity at room temperature is from 104 to 107 ohm cm. for diamonds containing boron and 105 to 2.107 ohm cm. for diamonds containing aluminium. The colour for diamonds containing boron varies from light blue to deep purple and the aluminium containing diamonds are white.  The apparatus and technique used may be that disclosed in Specifications 830,743 and 830,210, or the pressure vessel in these may be replaced by the vessel illustrated in the Figure which comprises a pyrophyllite cylinder 51 of about 5/32 of an inch wall thickness and 3/4 of an inch outside diameter.  Concentrically within this is the graphite heating tube 52, and a further cylinder 53 of alumina. The graphite charge, containing also boron and aluminium, is placed in metal catalyst tube 55 which is then positioned centrally within cylinder 53.  Plugs of alumina 56 and 561 (not shown) fit in the ends of the tube 52 to enclose the graphite charge and the catalyst. Suitable end discs 57 are provided to convey the current to tube 52. This type of reaction vessel provides an indirect heating of the sample via the graphite tube.
Patent GB-712016-A (GB)
Title: Improved "cire-perdue" casting process
IPC: B22C9/04
Filed: 1952-07-29
Abstract: 712,016. Moulding processes; mould materials. REGIE NATIONALE DES USINES RENAULT. July 29, 1952 [Sept. 6, 1951], No. 19187/52. Class 83 (1) In the "lostwax" process, the wax model is first coated by soaking in a paste containing a fine grain refractory and 25-50 per cent by weight of a refractory with coarse grains at least as large as those of the mass of the mould filler, and preferably 5-10 times as large. In an example the coating comprises 2.2 Kg. of siliceous sand, average grain diameter 20 microns ; 750 g. of siliceous sand, average grain diameter 0.5-1 mm. and an aqueous binder comprising sodium silicate, a sulphonated wetting agent, bornyl acetate, and water.
Patent GB-1081513-A (GB)
Title: Face plate assembly for electron image tubes
IPC: C04B37/04
Filed: 1965-05-06
Abstract: 1,081,513. Cathode-ray tubes. GENERAL ELECTRIC CO. May 6, 1965 [June 12, 1964], No. 19203/65. Heading H1D. The faceplate 20 of a cathode-ray tube, e.g. an image orthicon camera tube, is sealed to a reduced thickness (0À003 to 0À006 inch) inner portion 18 of a doubly convoluted metal frame 17 which is sealed to a metal ring 31 sealed to the tube envelope 13, the inner convolution of the frame 17 being of lesser amplitude than the outer convolution 121 and providing a resilient support for the faceplate. The faceplate may be a bundle of optical fibres or may be of soda lime optical glass or sapphire, brazed or sealed with glass frit to a frame 17 of Ti, Ta, stainless steel or alloys of Ti, Ta or chromium or Fe-Ni alloys. The frame 17 is preformed with the large convolution 21, but the smaller convolution adjacent the faceplate 20 may be formed in the reduced thickness inner portion of the frame 17 during sealing. The frame 17 is brazed or arc-welded to a metal ring which is sealed to the hard borosilicate glass envelope 13, the metal ring comprising a single member, or, as shown, two members 31, 34 of stainless steel and a magnetic alloy, respectively. Specific examples and dimensions are given.
Patent GB-466692-A (GB)
Title: Improvements in or relating to synchronous motor clocks and synchronous motor clock systems
IPC: G04C11/00
Filed: 1936-07-10
Abstract: 466,692. Electric clock systems. SIEMENS & HALSKE AKT.-GES. July 10, 1936, No. 19225. Convention date, July 16. 1935. [Class 139] In a clock installation, particularly for use on ships, wherein correction of the clocks is necessary for changes in longitude, the auxiliary clocks are each normally driven through a differential gear by two synchronous motors M1, M2, acting in opposite senses, so that by switching off one or other of the motors from the central station, the clock hands are driven backwards or forwards at a greatly increased speed. The motors M1, M2, fed from voltage supplies at the same frequency, run at equal speeds and drive the sun-wheels Z1, Z2 in opposite directions through identical gear trains G1, G2. The wheels Z1, Z2, have an unequal-number of teeth, for example, 99 and 100, respectively, and the planet wheel 1, through its carrier drives the minute shaft 2 directly. Alternatively, the wheels Z1, Z2, may have the same number of teeth in which case the trains G1, G2, differ from each other, or, if the wheels Z 1, Z2 and the trains are identical, the motors may be fed at different supply frequencies arranged to run at different speeds on the same frequency. In each clock, a pivotal setting lever 5, Fig. 2, normally attracted by the stator field of one of the motors, M2 for example, coacts, when the motor is deenergized, with notched discs 3, 4 on the minute and hour hand sleeves frictionally mounted on the spindle 2, the notches being in alignment at noon and midnight, for example, although further hour notches may be provided on disc 4. Operation. The auxiliary clocks are connected to single, or, as shown in Fig. 3, three phase supply, synchronized in accordance with the running of the ship's standard clock, so that in all of the clocks in which the setting lever 5 is actuated by motor M2, the motors M1, M2, are connected respectively to the same phase lines, whereby by opening switch s1 or s2 the motors M2 or M1, respectively, are stopped in all of these clocks. To adjust the clocks to a new local time the master clock is first adjusted whereupon the opening of switch s1 or s2 is effected automatically in a manner not shown, the clock hands then being driven at a far greater speed, backwards or forwards, according to the switch opened, until corrected, when the operated switch is closed automatically. To correct any differences between individual clocks, switch s1 is opened shortly before the time when the notches in discs 3, 4 should be in line, whereupon the hands of all the clocks are advanced at setting speed until arrested by a detent 6 on lever 5 entering the aligned notches in the discs 3, 4. The switch s1 is closed at the hour represented by the aligned notches when the clocks all revert to their normal drive.
Patent GB-582968-A (GB)
Title: Improvements in printing presses
IPC: B41F3/46
Filed: 1944-10-09
Abstract: 582,968. Printing-machines : delivery apparatus. KELLY, W. M. Oct. 9, 1944, No. 19363. [Classes 100 (i) and 100 (ii)] A printing-machine which can print from a reciprocating bed by means of a two revolution cylinder and also from a rotary couple or from each machine individually is constructed with a two revolution cylinder 23 fed from a table 26 and a bed 18 reciprocated by a pinion 16 and reversing devices actuated by means of connecting-rods 17, the cylinder machine being similar to that described in Specification 565,827. The rotary couple 43 41, is arranged above the cylinder 23 and the cylinder 41 receives sheets from a transfer cylinder 38. The cylinders 41, 38, and 23 are so arranged that a line joining their axes is inclined to the horizon at an angle of about 30‹ so as to permit of access to the bed. The gear 16 and all the cylinders are driven by gears from a main drive shaft 11 and the cylinder 23 is a two revolution cylinder, and the cylinders 41, 38 make three revolutions for each two of the cylinder 23. The cylinders 23, 41 are moved out of contact with their forme member by eccentrics, and the transfer cylinder is similarly movable to co-operate correctly with the two impression cylinders 23, 41. The printed sheets are delivered by grippers 49 on chains 48, which can be moved to dotted line position to permit of access to the bed 18, and the delivery table 34 is mounted to that it can be swung about a vertical pivot 35 for a similar purpose. The feed table 26 can be raised about its pivot 27 to permit of access to the inking rollers 25 of the bed.
Patent GB-385339-A (GB)
Title: An improved collapsible cooking oven
IPC: F24B1/20
Filed: 1931-07-06
Abstract: 385,339. Cooking ovens. NEALE, E. C. ST. J. B., 49, Melrose Gardens, Shepherds Bush, London. July 6, 1931, No. 19393. [Class 126.] A portable oven comprises a collapsable boxlike structure formed of two main components, viz. a folding body portion and a base. In the construction shown, the body portion comprises a top formed by telescoping members 1, 2, end walls 4 hinged to the top, and members 3 forming front and rear walls hinged to the members 4. The members 3 are maintained in alignment, when erected, by pivoted members 9 and cleats 8 which they engage. The base comprises telescoping portions 5, 6 preferably having peripheral flanges to engage round the lower ends of the walls of the body, and provided with clips 7 which engage cleats 10 to hold the body and base portions together. The flange may be omitted at one edge of the base member to allow the members 3 on that side to open to form doors.
Patent GB-863488-A (GB)
Title: Support device for wall brackets, suspended ceilings and the like
IPC: E04B1/41
Filed: 1956-06-20
Abstract: 863,488. Bolting; clamps. BRUCE, H. H. June 20, 1957 [June 20, 1956; Aug. 2, 1956], Nos. 23818/56 and 19458/57. Classes 44 and 89(1). A support-device, e.g. for suspended-ceilings and wall-brackets, comprises a channel 1 with converging-flanges 4, a nut 2 with diverging-walls 5 engaging the flanges, and a screw 3. The channel is elongate, and may be cast in a floor c from which the ceiling is to be suspended, and the nut is locked.in any position along the channel by tightening the screw against the web of the channel, thus causing the flanges to grip the nut. An insulating-block x is secured by a nut y, and ceiling-panels are affixed to the lower-end of the screw. Conduits for cables and pipes may be interposed between the channel and the ceiling. The channels may support similar cross-wisechannels. Specification 861,385 is referred to.
Patent GB-385009-A (GB)
Title: Improvements in and relating to liquid-break electric circuit breakers
IPC: H01H33/55
Filed: 1931-07-07
Abstract: 385,009. Oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Rankin, W. K. ; 267, Highland Avenue, Lansdowne, Pennsylvania, U.S.A.) July 7, 1931, No. 19574. Convention date, July 9, 1930. [Class 38 (v).] Switches, actuating; are-rupturing devices. -When the movable contact 2 of an oil or other liquid-break switch is separated from the fixed contact 14, the arc formed sets up a pressure under the oil 3 which produces a flow past the fixed contact into an expansion chamber 6 on the top of the casing, the gas discharging from a vent 9 and the oil returning to the casing. The contact 2 is guided by a member 18 in the part 21 of the casing, and is operated on and off by rack.and-pinion mechanism 19, 20 from outside the casing. In closing, the contact 2 first engages and raises the contact 14 and in the fully-closed position is engaged by spring-pressed main contact segments 16, the contact 14 serving to take the arc when the switch is being opened. The housing 13 of the fixed contact structure is integral with a spider 8 on the top of an annular conducting member 7 to which an insulating casing 4 is secured, the latter having an arc-resisting lining 29 and bands 38 for resisting hoop tension. The surrounding insulators 24, 25 are secured to an intermediate member 26 by which the whole assembly is mounted on angle members 27 serving to support similar other units of a polyphase switch. A yielding gasket 32 is interposed between the members 7, 24, and the whole arrangement is such that the members 24, 25 are subjected to compression stresses only.
Patent GB-960290-A (GB)
Title: Improvements in railings
Inventor: MORRIS GEORGE LEE
IPC: E04H17/14
Filed: 1962-05-22
Abstract: 960,290. Fencing. EVANS & NEWALL Ltd. April 18, 1963 [May 22, 1962], No. 19581/62. Heading E1B. In fencing comprising horizontal rails B extending through posts A, the rails are connected end to end by sleeves C which are either a push fit or a screw threaded fit over each rail end. The posts may be of rectangular, square, or angle section, and the sleeves are driven onto the rails using a described spigotlike tool.
Patent GB-417115-A (GB)
Title: Improvements relating to machines for breaking coal or other friable material
IPC: B02C1/12
Filed: 1933-03-27
Abstract: 417,115. Breaking coal &c. NORTON, B., Sandford Hall, Claverley, near Wolverhampton. March 27, 1933, No. 19590/34. Divided out of 417,066. [Class 59.] In a machine for breaking coal &c. comprising reciprocating picks, an oscillating frame 5 pivoted at 6 and carrying the picks 7, 8 is directly driven through a crank 2 and connecting rod 4 from a shaft above the frame and the frame 5 is connected by links 15 to an oscillating table 9 arranged to convey the coal &c. beneath the picks. The construction of the machine is the same as that described in Specification 417,066. Specifications 283,835 and 290,920, [both in Class 59], also are referred to.
Patent GB-410346-A (GB)
Title: An automatic electric time switch
IPC: G04C23/16
Filed: 1933-07-12
Abstract: 410,346. Time switches. STERN, G. B., 5, Merton Lodge Park Road, Shanklin, Isle-of-Wight. July 12, 1933, No. 19720. [Class 38 (v).] A time switch, particularly for motor vehicle lamps, comprises a contact spring 13 which is held from contacting with a contact 15 by the hour wheel 11 of a clock, having a pin 10 engaging a face cam 9. As the hour wheel 11 is rotated the pin 10 slides on the face of the cam until it reaches a step. The hour wheel is then moved axially by the spring 13 which makes contact with the contact 15. At a later time the pin 10 rides up a second step in the cam 9 to open the circuit. The cam 9 is mounted on a cogwheel 2 engaging a pinion 3 provided with a knob 6 for setting the time of actuation, the wheel 2 being held in its set position by a spring pawl which gives an audible snap to assist time setting. An insulated screw 29 provided with a knob 30 can be screwed in to break the circuit and prevent it from being remade. The complete switch and clockwork is adapted to be mounted on a bracket 31 on the steering column 32 of a motor vehicle.
Patent GB-1359858-A (GB)
Title: Disc-shaped storage medium with groove modulation and process for  producing it
IPC: G11B3/72
Filed: 1971-06-09
Abstract: 1359858 Video record TED BILDPLATTEN AG AEG - TELEFUNKEN - TELDEC 9 June 1971 [18 June 1970] 19775/71 Heading G5R A disc shaped record with groove modulation for playback at 1000 r.p.m. on an air cushion is formed of a PVC foil of 100-150 micron thickness having a groove density of at least 100 grooves/m.m. The foil is composed of an emulsion PVC (K value 70) with the following additives; 2-3% by weight glycol ester of dibasic acid; up to 1% by weight high polymer ethylene wax; 0À6% by weight acetylene black and 0À1% by weight diphenyl thiourea. The record is pressed in a two piece mould comprising a heatable and coolable piece and a piece including a rubber convex cushion. The foil is inserted in the press when cold, pressure of 140 kp./cm.<SP>2</SP> is then applied after which the press temperature is raised to 170‹ C. for a few seconds.
Patent GB-262372-A (GB)
Title: Improvements in or relating to apparatus for washing glasses and like vessels
IPC: A47L15/00
Filed: 1925-08-06
Abstract: 262,372. Hardie, J. H. Aug. 6, 1925. Drinking - vessels, washing.-A machine of the kind in which a glass or like vessel 18 is supported upon a rotatable holder 13 and is subjected to the action of a cleaning medium on its interior and exterior is constructed so that tangential jets issue from nozzles 12 arranged around a supply pipe 11 on which the holder 13 is supported and impinge against the interior of the glass to rotate the same, while the exterior is sprayed from sprayers 20 which are arranged radially or substantially radially. The supply of liquid to the pipe 11 which supplies the jets 12 and sprayers 20 is controlled by a pedal-operated cock, and the liquid escapes through holes 4a in the base of a bowl 4 surrounding the holder 13 to a waste pipe 21. The holder 13 is composed of wire arms connected at their tops to a disc 14 rotatably mounted on the pipe 11 and bent at their lower ends to engage holes in the periphery of a disc 16 similarly mounted. Rubber supporting studs 17 or the like for the glass may be provided.
Patent GB-497315-A (GB)
Title: Improvements in or relating to roll film photographic cameras
IPC: G03B19/04
Filed: 1937-06-14
Abstract: 497,315. Photographic cameras. KODAK, Ltd. June 14, 1937, No. 19789/38. Convention date, Oct. 30, 1936. Divided out of 497,266. [Class 98 (i)] In a camera having a film-winding arm movable between two limiting positions, the arm is held by a latch adapted to be released on release of the shutter by means connecting the arm with a member for operating a shutter setting member. The arm 31 in the spool shaft 23 has a handle 38 engaging a seating 35 in its position of rest, and carries a disc 43 having a notch 48 engaged by a latch 49 pivoted to the casing and pressed by a spring 53 to hold the arm locked. The arm is connected by a flexible connection 55 to a slide 57 of the shutter mechanism which is of the type described in Specification 497,302, and includes a rotatable shutter-setting member 74 controlled by a spring 84. In the position shown the shutter is set, the member 74 being held by a trigger release 78. On releasing the shutter the member 74 rotates under the action of the spring 84 and during its motion a pin 75 thereon strikes a lug 76 on the slide 57 to tauten the connection 55 which presses against a flange 52 of the latch 49 to release the arm. A spring 94 maintains the latch in a released position after exposure. The arm is then free to wind the film and, as described in Specification 497,266, must make one complete movement in one direction thus causing the connection 57 to set the shutter. The shutter has the trigger locking mechanism described in Specification 497,316 and a diaphragm as described in Specification 497,301.
Patent GB-426853-A (GB)
Title: Improvements relating to the manufacture of floors of magnesium-cement
IPC: C04B28/32
Filed: 1934-07-06
Abstract: The upper layer of a floor comprises one part by weight of magnesium oxide to two or more parts of saturated solution of magnesium chloride, together with filling matter.  The preferred composition is 26 parts of burnt magnesite, 19 parts of filling matter, and 55 parts of saturated solution of magnesium chloride.
Patent GB-1256102-A (GB)
Title: Improved apparatus for the liquid treatment of fabrics in roped form
IPC: D06B3/26
Filed: 1969-04-18
Abstract: 1,256,102. Liquid treatment of rope form fabrics. UNITED MERCHANTS & MFGS. INC. 18 April, 1969 [19 April, 1968], No. 20008/69. Heading D1L. A textile fabric F in rope form is revolved substantially helically through a liquid in a tank 12, and over a rotating spiral guide member 24, reel 40 and a main drive reel 22. The leading end 38 of the fabric is attached to an endless conveyor chain 32 situated around one end of the reels and spiral guide by means of a flexible arm and a sprocket 68 which engages a fixed toothed rack 76 on each revolution of the chain to transmit a positive de-twisting action to the fabric. The reel 40 may be an idler reel as shown, or may be driven (Fig. 3, not shown), a second' driven reel being provided below the spiral guide. As shown in Fig. 6, the spiral guide member 84 may comprise two concentric helical wire members, connected by flexible spokes which may be telescopic and spring loaded (Fig. 9, not shown) and a supporting shaft 86 on which the inner helical wire member slides. Some of the turns of the helical wire members may be held inside a casing 102 exterior to the tank by means of a radial finger 126, the number of turns inside the tank being varied by rotation of the casing relative to the shaft. Alternatively (Fig. 10, not shown) the spiral guide member may comprise a helical wire member supported by three spring-loaded idler rollers around its circumference and having a storage casing arrangement as described above. A curved stationary guide bar 192 may be provided to guide the leading end 38 of the fabric into the first pocket of the spiral guide member, a bar 196 connected through a double crank bar to a limit switch may be provided to stop the apparatus in the event of the fabric becoming tangled on the drive reel, and a lever adjacent to the last pocket of the spiral guide member in the tank and connected to a limit switch (Fig. 14, not shown) may be provided to stop the apparatus in case of build up of fabric in the last pocket. The fabric may be dyed, scoured, or bleached.
Patent GB-504371-A (GB)
Title: Improvements in the production of magnetisable steel sheets
IPC: C22C38/02
Filed: 1937-07-30
Abstract: 504,371. Alloys ; heat - treatment. ELECTRO METALLURGICAL CO. July 30, 1937, No. 20026. Convention date, Aug. 7, 1936. Drawings to Specification. [Classes 72 and 82 (i)] [Also in Group XXII] Magnetizable silicon steel sheets are produced by forging or hot rolling, or both, a steel containing 5À5-7 per cent of silicon and 0À2-0À5 per cent of carbon, holding the sheet at 650- 1050‹ C. for 2-20 hours, cooling, punching or otherwise shearing the sheet, reheating to 1000-1200‹ C. and slowly cooling. The steel may also contain 0À3-2 per cent in all of one or more of manganese, nickel, cobalt, and copper ; 0À05-0À15 per cent of silver ; up to 1 per cent in all of one or more of beryllium, boron, calcium and zirconium; not over 4 per cent of aluminium ; up to 1 per cent in all of one or more of chromium, titanium, molybdenum, tungsten, vanadium, niobium, and tantalum. The steel may be forged or rolled, or both, at 900-1150‹C. and the finishing temperature of thin sheet may be 700‹ C. although a temperature of below 500‹ C. may be employed. The heat treatments may be carried out in air or in an inert or reducing atmosphere, e.g. in hydrogen or in a hydrogennitrogen mixture. Specific compositions of steels as above and of steels with differing carbon and silicon contents are given.