baber/WOPTO huggingface dataset:
Patent GB-709199-A (GB)
Title: Improvements in and relating to gas burners
IPC: F23D14/10
Filed: 1950-07-28
Abstract: 709,199. Gas burners. RADIANT HEATING, Ltd., and DOCKING, A. July 27, 1951 [July 28, 1950], No. 18921/50. Classes 75 (1) and 75 (3) A gas burner comprises a body 6 of refractory material extending alongside a tubular burner bar 1 but separated therefrom by a longitudinal closed space 4 supplied with gas through holes 5 in the wall of the burner bar, the refractory body having gas outlet holes 2 communicating at their inner ends with the closed space. The refractory body is made up of rectangular ceramic blocks arranged end to end in an elongated channel section holder 3 secured with its bottom flush against a flattened side of the burner bar, and a groove in the inner suface of the holder & forms the space 4 separating the ceramic blocks from the burner bar. The gas outlet holes 2 are arranged in staggered manner in two longitudinal rows and additional outlet holes are formed by registering grooves in the ends of contiguous blocks, the additional holes forming a third longitudinal row between the two rows. The burner bar is closed at one end and at its other end, Fig. 5, it is formed as a Venturi throat 10 and is closed by a rear plate 11 through which the gas supply conduit 8 passes axially to terminate in a gas jet 9 located rearwardly of the Venturi throat. Air inlet openings 12 are formed in the wall of the burner bar to the rear of the gas jet and the induced air flow is adjusted by varying the clearance between the converging surface of the Venturi throat and the edge of a baffle 13 located forwardly of the air inlets 12. The baffle is slidably mounted on the gas conduit 8 and is actuated by a spindle 14 rotatably mounted on the rear plate 11 parallel to the axis of the burner and in screwed engagement with the baffle. The gas at the outlets 2 is ignited by a flash tube disposed alongside the burner and inclined downwardly, its forward slantwise-cut end being located above the rear gas outlets 2; a sparking plug or an electrical heating coil is disposed in the rear end of the flash tube.
Patent GB-1424230-A (GB)
Title: Aromatic long chain alkyl ethers and thioethers
IPC: C07D317/56
Filed: 1973-04-19
Abstract: 1424230 Ethers and thioethers SANDOZ Ltd 19 April 1973 [24 April 1972 22 Feb 1973] 18942/73 Heading C2C  The invention comprises compounds (I), where R 1  is C 1-11  alkyl, C 3-11  alkenyl, C 3-11  alkynyl, or optionally C 1-4  alkyl-substituted- C 5-7  cycloalkyl; R 2 , R 3 , R 4 , and R 5  are each hydrogen or C 1-6  alkyl; w and z are 0 or intergers of 1-8 such that w+z is 1-8; Y is -O- or -S-; X is -O-, -S-, -OCH 2 -, -SCH 2 -, -OCHR 7 - or -SCHR 7 - (where R 7  is C 1-4  alkyl) and R 6  is a radical Ar 1  or Ar 2  (where U is optionally mono or disubstituted- C 1-5  alkyl, C 2-12  alkenyl, C 1-5  alkoxy, C 2-12  alkenoxy, formyl, C 2-6  alkylcarbonyl, C 2-6  alkoxycarbonyl, carbamoyl, C 2-6  alkoxymethylene, C 1-5  alkylthio, cyano, Cl or Br; n is 0, 1, 2 or 3 and m is 0, 1 or 2 such that m+n is 1-5; q is 0, 1 or 2; R 8  and R 9  are hydrogen or C 1-5  alkyl; and p is 1 or 2) with the proviso that, when R 2  is C 1-6  alkyl, either X is -OCHR 7 - or -SCHR 7 - or X is -OCH 2 - or -SCH 2 - and R 6  is Ar 2  or Z is an integer of 1-4 and W+Z is 1-4 and their preparation, by condensing a compound (II), where Q is Cl, Br or tosyl, with a compound (III) MXR 6 , where M is H, Na or K; condensing a compound (IVa), where Z<SP>1</SP> is an integer of 1-8 such that W+Z<SP>1</SP> is 1-8, with a compound (IIIa) HOR 6 , to give a compound (Ia), where X<SP>1</SP> is oxygen; by condensing a compound (VI), where W<SP>11</SP> and Z<SP>11</SP> are integers of 1-8, such that W<SP>11</SP>+Z<SP>11</SP> is 2-8, with a compound (Va) HOR 1 , to form a compound (Ib) where Y<SP>1</SP> is oxygen; by condensing a compound (IV), where X<SP>11</SP> is oxygen or sulphur, with a compound (VII) Q<SP>1</SP>CHR 6 R 10 , where R 10  is H or R 7  and Q<SP>1</SP> is Cl or Br, to give a compound (Ic), where X<SP>111</SP> is -OCH 2 -, -SCH 2 -, -OCHR 7 - or -SCHR 7 -; by condensing a compound (VIII) with a compound (V) MYR 1  to form a compound (Id); or by condensing a compound (IX) with a compound (X) QR<SP>1</SP> 1 , where R<SP>1</SP> 1  is primary or sec. C 1-11  alkyl, primary or sec. C 3-11  alkenyl, primary or sec. C 3-11  alkynyl, optionally C 1-4  alkyl-substituted C 5-7  cycloalkyl, bonded to Q through a primary or sec. carbon atom, to form a compound (Id). The starting materials may be made by known methods. Insecticidal and acaricidal compositions comprise compounds of the invention with a suitable carrier or diluent.
Patent GB-765927-A (GB)
Title: Improvements in or relating to telecommunication systems
Inventor: DAVISON ALAN
IPC: H04Q3/42
Filed: 1952-01-16
Abstract: 765,927. Automatic exchange systems. AUTOMATIC TELEPHONE &-ELECTRIC CO., Ltd. Jan. 15, 1953 [Jan. 16, 1952], No. 18973/54. Divided out of 765,925. Class 40 (4). In an arrangement tor translating code digits into routing digits, as described in the parent Specification, a gas discharge tube is allotted to each combination of code digits and is made conductive to determine the setting of storage devices for the routing digits. The A, B and C digits are stored in 10-tube stores 1EDS, 2EDS and 3EDS in response to markings on cables 10, 11 and 12. Assuming that VK20, VK30 and VK40 strike to store the three digits, VN10 follows in IEDS and after a delay introduced by circuit PD1 the A digit is transferred to a second store or repeater R in which VK10 strikes. In the coding field CF, a tube VK80 allotted to the combination AB is primed by VK30 (B digit) and strikes in response to the delayed pulse from VK10 (A digit). A tube VK81 individual to the combination ABC is primed by VK40 (C digit) and strikes in response to a pulse from VK80 (representing AB). A pulse from the cathode of VK81 (representing ABC) strikes one tube in each of the stores 1RDTC, 2RDTC and 3RDTC to store the translation.
Patent GB-427594-A (GB)
Title: Improvements in devices for producing high-tension electric current
IPC: H02M5/32
Filed: 1934-06-27
Abstract: 427,594. Converting; transformers. GAGLIO, J., 12, Rue Assalit, Nice, France. June 27, 1934, No. 19002. Convention date, June 30, 1933. [Class 38 (ii)] An arrangement for producing high tension current, e.g. for energizing a glow tube 7, comprises a transformer 1 the primary of which is connected in series with a condenser 2 to a motor-driven current reversing switch 3 the input terminals of which may be connected either to a D.C. supply or to a source of A.C. of lower frequency than the frequency of reversal of the switch. The commutator is provided with such a number of segments, e.g. fourteen, and is driven at such a speed, that it effects a plurality of reversals of current during each quarter revolution independently of reversals due to alternations in the source of supply. Specification 14859/10, [Class 38 (ii)], is referred to.
Patent GB-116660-A (GB)
Title: Improvements in Valve Apparatus for Rock Drills and the like Fluid Pressure Operated Tools.
Inventor: RAYNER GEORGE HENRY TURTON
IPC: B25D9/16
Filed: 1917-12-22
Abstract: 116,660. Rayner, G. H. T., and Rayner, P. Dec. 22, 1917. Valve chests and casings.-To lengthen the working life of the gear, the valve v works between reversible blocks p, p<1> which have central ports c, c<1> and are held in position by ported distance pieces j, j<1>. One ported block is made longer than the other to ensure that, when they are changed over in position, the valve works on a different part of the valve chamber. In a modification, Fig. 3, the valve is provided with a projection v on one side for a similar purpose, the port blocks being similarly constructed, or the valve may have projections on both sides of different lengths. The valve may be in the form of a simple disk coned on both sides, or a grooved disk flat or coned on both sides. The valve chamber may have a renewable bushing as described in Specification 772/13. The valve is thrown by the release and compression acting on its sides when the piston passes the ports g, g<1>.
Patent GB-461118-A (GB)
Title: Improvements in die-casting and pressure moulding machines
IPC: B22D17/32
Filed: 1936-07-09
Abstract: 461,118. Casting-machines. HAESSLER, P. July 9, 1936, No. 19036. [Class 83 (i)] In pressure moulding and die-casting machines, the closing of the mould half and the forward motion of the working piston are effected mechanically, whilst the mould closing pressure and the motion of the working piston for applying pressure are produced hydraulically. A nut 14 rotated by an electromotor 19 moves axially a spindle 15 until a piston 16 contacts a cylinder 27 to close a movable mould 26 against a stationary mould 22. Members 7, 8, 9, 10 move and a cylinder 31 supported on the bars 7, 8 is moved to the right. Valves 47, 48 are operated by the mechanism to connect an accumulator 42 with the cylinder 27 to apply closing pressure to the mould and with the cylinder 31 to force a pressure piston 30 and an attached working piston 28 to the right. A slide channel 23 is then fed with metals such as copper alloys in a fluid or plastic state. A valve 49 is reversed and a cylinder 36 is connected to the accumulator 42 to move a piston 37 which straightens a toggle 35 attached to the cylinder 31. The piston 28 is moved to push the material from the channel 23 into the bore 21. The valve 48 connects the cylinder 31 with a return pipe 45. The mould opens and the working piston 28 continues to move to the left to eject the residue of the material in the bore 21. Instead of using a pump 43 for returning the liquid to the accumulator the working piston may be replaced by mechanical means.
Patent GB-599674-A (GB)
Title: Improvements in and relating to continuous interrupters for electric circuits
IPC: H01H37/66
Filed: 1943-11-16
Abstract: 599,674. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 16, 1943, No. 19065. Convention date, Nov. 19, 1942. [Class 38(v)] [Also in Group XXXV] Switching control. - A device for intermittently energising a load 10, such as an electrically heated flying suit which it may be required to maintain at a uniform temperature under conditions of varying ambient temperatures, comprises a switch arm 15 pivoted at 17 and actuated by an electromagnet 22, 23, the arm controlling contacts 13, 14 in the load circuit and contacts 30, 31 in the magnet circuit. Contact 31 is carried by a resilient extension of arm 15 and contact 30 is mounted on the free end of a bimetallic strip 25, secured at 26 and provided with a heater 28 which is energised over contacts 30, 31 and through rheostat 35. With the starting switch 34 open, the circuits of the magnet coil, heater 28 and load 10 are open and the arm 15 is biased by spring 18 against an adjustable stop 20. The contacts 30, 31 remain closed when the arm is in this position and the bimetallic strip cold. Closure of the starting switch immediately energises the magnet coil and heater 28, the magnet then attracting the switch arm to close the load circuit at 13, 14 and to increase the contact pressure at 30, 31. Load current flows until flexure of the bimetallic strip by the heat developed in 28, which may be regulated by 35, causes contacts 30, 31 to separate. When this occurs the circuits of 28 and the magnet coil are broken so that the switch arm snaps back against stop 20, interrupting the load circuit, and heater 28 starts to cool. As cooling proceeds contact 30 again engages 31 and the cycle repeats itself. Ambient temperature variations affect the strip 25 in such a way that the period of closure of contacts 30, 31 increases with decreasing temperature and vice versa, so that the energy supplied to the load varies inversely as the ambient temperature and, in the case of a heating load, an approximately constant temperature may be maintained in the load. Rheostat 35 may so control the current in heater 28 that the load circuit is maintained open above a low ambient temperature limit.
Patent GB-968022-A (GB)
Title: Improvements in and relating to straight-edges for drawing boards, draughting machines and the like
Inventor: ROWLEY JOHN
IPC: B43L13/04
Filed: 1960-05-30
Abstract: 968,022. Draughting-machines. E.N. MASON & SONS Ltd. May 29, 1961 [May 30, 1960], No. 19072/60. Heading G1X. A draughting machine of the kind in which a straight-edge 9, Fig. 3, is guided parallel to itself over the drawing board 1 by means of pulleys and wires is provided with supports 15 fixed to the wires and having spigot 17 and socket 14 interconnection with the straight-edge so that the latter may be removed and readily repositioned in accurate location on its supports 15. The spigot 17 may be locked against accidental disengagement by a spring loaded plunger 18. Alternatively the plunger 18 may be replaced by a pivoted catch or a spring loaded member sliding on a fixed pin. Each support 15 has an adjuster screw 22 for moving a slidable frame 23 carrying a friction pad 24 into contact with the side of the drawing board 1. A micro differential screw adjustment for each block 15 comprises a thumbscrew 35, Fig. 6, which is externally screw-threaded to engage a threaded bore 36 in the support and is also internally screw threaded to engage an external screw thread on a hollow stub shaft 34 protruding from a block 32 to which the wire 4 is anchored by grub screw 33. The wire may pass several times around the pulley wheel at one, or each, corner of the board 1, the pulley wheels at the top of the board being connected together by a shaft which may be mounted in self aligning bearings. The weights for balancing the straight-edge and tensioning the wires each comprise interfitting cup-like members 79, 80, Fig. 12, connected by hollow screwed spindles 82, 84, through which the wire passes to be held by grub screw 88, and on which detachable lead weights 87 may be fitted.
Patent GB-962183-A (GB)
Title: Mineral rutile pigment
IPC: C22B34/12
Filed: 1962-05-17
Abstract: The invention comprises a mineral rutile pigment of high opacifying power, which consists of discrete particles of mineral rutile having planar surfaces and at least 95% of which are less than 10 microns in size, the pigment being devoid of agglomerates, slightly coloured and having a high contrast ratio. At least 90% of the particles may have a size less than 5 microns and from 20% to 90%, preferably from 40% to 70%, of these may have a particle size less than 1 micron.  The mineral rutile, initially of particle size 75-600 microns, may be slurried and disintegrated by grinding. The slurry may contain a deflocculating agent, e.g. sodium silicate, sodium hexametaphosphate, tetrasodium pyrophosphate in an amount of 0.05-0.5 parts by weight per 100 parts of mineral rutile.  The slurry may be prepared using 100 parts by weight of mineral rutile and 20-100 parts by weight of water, grinding being effected for 10 to 300 hrs.  In an example, red-brown rutile was slurried with water containing sodium silicate and ground in a vibration ball mill.  The slurry was then spray dried at 115-125 DEG  C. to give a light tan pigment of contrast ratio 0.796.  The pigment may be incorporated in a paint or plastic composition, e.g. a stabilized vinyl polymer.ALSO:A paint contains a mineral rutile pigment of high opacifying power, which consists of discrete particles of mineral rutile having planar surfaces and at least 95% of which are less than 10 microns in size, the pigment being devoid of agglomerates, slightly coloured and having a high contrast ratio.  The pigment may also be incorporated in lacquers, varnish and plastic compositions.  Typical formulations are (1) 28-33 parts by volume of the said pigment, 67-72 parts by volume of boiled linseed oil, and 0.5-1 part by volume of cobalt naphthenate drier. The pigment component of a paint may comprise a mixture of the pigment of the invention together with other pigments, e.g. white lead, zinc oxide, and a filler, e.g. calcium carbonate.
Patent GB-342244-A (GB)
Title: Improvements in electric insulators of ceramic material
IPC: H01B17/26
Filed: 1930-06-24
Abstract: 342,244. Insulators. SINGER, F., 48, Bayernallee, Berlin. June 24, 1930, No. 19171. Convention date, Sept. 3, 1929. [Class 36.] In order to avoid strains during the fixing of a hollow ceramic insulator adapted to contain oil, the floor closing the oil-space is arched or curved. In the supporting insulator shown in Fig. 1, a narrow collar b formed on the insulator shell a carries a dome-shaped floor c. In a modified construction the dome may be inverted. As shown in Figs. 3, 4, the collar b is formed as a truncated cone closed by a glazed disc d.
Patent GB-437180-A (GB)
Title: Improvements in boxes for cigarettes and similar oblong articles
IPC: B65D85/10
Filed: 1935-07-05
Abstract: 437,180. Cigarette &c. boxes. CALLMANDER, J., Upsala, Sweden. July 5, 1935, No. 19205. Convention date, Sept. 17, 1934. [Class 18] A box for cigarettes and similar oblong articles comprises a closing flap 5 which is folded at least twice and a second flap 9 extending partly or wholly across the opening and if desired tapered towards its free end, for the purpose of bringing the cigarettes &c. which are packed parallel to the flap 9, to the delivery position shown, the flap 5 engaging flap 9 so that it is held, thus forming a means for receiving the partly delivered contents. A notch 11 facilitates the opening of the flap 5 which carries a rib 14 which fits in the recess 11.
Patent GB-621750-A (GB)
Title: Improvements in and relating to ships' hatchways
IPC: B63B19/18
Filed: 1946-06-27
Abstract: 621,750. Ships' hatches. JEFFREY, A. W. June 27, 1946, No. 19238. [Class 113 (i)] A carrier for the end of a hatch bearer 10 comprises a trolley movable as an independent unit on a runway extending along the inner side of the hatch coaming, the trolley having a seat 29 to receive the bearer end in a readily removable manner and locking means 31 to co-operate with complemental locking means on a rail 20 secured to the coaming. Each trolley comprises rollers 22 journalled in a carriage 23 formed with the seat 29 into which the bearer 10 fits and is secured by a screw 30 on which a latch 31 is mounted. The horizontal flange of the rail 20 has slots cut therein corresponding with the working positions of the hatch bearers. When the latch is raised to the dotted position in Fig. 3, the trolley can be moved along the runway 12 from one locking position to another, the latch being supported in its disengaged position by the locking rail 20. When the trolley reaches a working position the latch automatically drops into the slot provided there. Specification 440,099 is referred to.
Patent GB-386559-A (GB)
Title: Improvements in and connected with steam superheaters
IPC: F22G7/14
Filed: 1932-07-08
Abstract: 386,559. Water-tube steam boilers ; steam superheaters. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, France. July 8, 1932, No. 19294. Convention date, Sept. 22, 1931. [Classes 123 (ii) and 123 (iii).] In a boiler furnace having a primary and a secondary superheater placed in the path of the gases, the superheaters are heated by radiant heat from the furnace traversing gaps unoccupied by boiler tubes. The flow of gases may be reduced by baffles in the neighbourhood of the superheaters. The superheaters 2, 3 are arranged behind the boiler tubes having gaps 4, and the flow of gases over them is controlled by baffles 5, 6. The boiler may be replaced by a generator of the Atmos type comprising a series of spaced rotors. The superheaters may be interlaced.
Patent GB-965492-A (GB)
Title: Improvements relating to tiltable table structures
Inventor: DOUGALL JOHN
IPC: A61B6/04
Filed: 1962-05-18
Abstract: 965,492. Surgical tables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 10, 1963 [May 18, 1962], No. 19303/62. Heading A4H. [Also in Division H5] A tiltable table structure, in which the table is pivoted about a transverse tilting axis on a support lever, which is itself pivoted about another axis, is provided with a linearly actuable operating member coupled to the table at a point removed from its tilting axis and actuable to tilt the table forward about its axis on the lever so that one end swings down, and means for pivoting the lever about its axis so as to raise the tilting axis. As shown, the table 1 is pivoted clockwise, from a horizontal position, about a tilting axis a, by extending a ram 13 of a hydraulic or pneumatic cylinder 14. This movement causes a link 17 to pivot a lever 15 clockwise about a pivot e on a lever 12, until a roller 16 contacts a surface 18. As the roller 16 travels to the left along the surface 18 the lever 12 rotates anti-clockwise about a fixed pivot b thus raising the tilting axis a and enabling the table 1 to reach a vertical position (Fig. 4). To pivot the table 1 anti-clockwise from the horizontal position (Fig. 2), the ram 13 is retracted to pull the lever 12 upwards about axis b, tilting of the table about its axis a being prevented by a stop 23. The table can be used as an X-ray table with a cantilevered structure 4, which has telescopic legs 6 and carries a viewing screen 5, a carriage (not shown) by which an X-ray film cassette can be moved into position beneath the screen, and an undertable X-ray tube 11 in vertical alignment beneath the screen The tube 11 and screen structure 4 can be adjusted in position transversely and longitudinally of the table. Alternatively an overhead gantry may suspend an X-ray tube above the table and a film cassette beneath the table.
Patent GB-496471-A (GB)
Title: Improvements in and relating to water tube steam boilers
IPC: F22B21/08
Filed: 1938-06-29
Abstract: 496,471. Water-tube steam boilers. BAUER, G. June 29, 1938, No. 19352. [Class 123 (ii)] In a water - tube steam boiler as claimed in Specification 458,372, the downcomer tube group o and an intermediate drum d are placed on the opposite side from the smoke gas flue behind a wall s screening them from the upcomer tubes g. A feedwater heater r occupies the space in the flue behind a superheater p.
Patent GB-1049825-A (GB)
Title: Improvements in or relating to once-through boilers
IPC: F22B29/06
Filed: 1965-05-07
Abstract: 1,049,825. Once through boilers; furnace walls. BABCOCK & WILCOX Ltd. May 7, 1965 [May 9, 1964], No. 19426/65. Headings F4A and F4B. The heating gas passage of a once through boiler is lined with rows of evaporator tube panels as shown. Fluid from line 51 passes both through line 49 with throttling valve 56 and from left to right in series through tube panels 1, 2, 3, 4 in the bottom row, and then from right to left in series through tube panels 5, 6, 7, 8 in the top row, and also through line 50 and in series through panels 9, 10, 11, 12 in the bottom row and panels 13, 14, 15, 16 in the top row, to exit through lines 53 and 54. The tubes of tube panels 1, 2, 3, 4 in the bottom row and panels 5, 6, 7, 8 in the top row are interleaved respectively with the tubes of panels 12, 11, 10, 9 in the bottom row and panels 16, 15, 14, 13 in the top row to minimize temperature differences across the rows. In addition the top ends of the tubes in tube panels 12, 11, 3, 4 of the bottom row are interleaved with the bottom ends of tubes in tube panels 13, 14, 6, 5 respectively in the top row.