baber/WOPTO huggingface dataset:
Patent GB-598405-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H04Q3/52
Filed: 1945-08-03
Abstract: 598,405. Automatic exchange switches. HADFIELD, B. M. Aug. 3, 1945, No. 24799/47. Divided out of 598,386, [Group XL]. [Class 40 (iv)] [Also in Group XL] An automatic switch comprises a cathode-ray tube provided with at least two control electrodes and a plurality of anodes connected in a circuit with a resistor in the cathode lead, means being provided for causing the deflection of the beam from one anode to the next in response to changes in the potentials of the two anodes. A negative signal applied to the grid G, Fig. 1, decreases the beam intensity causing the potential of anode A1 to rise due to the decreased current through resistors W1 ... Wn. This rise is applied over potentiometer P4 to deflection electrode dp, the beam passing on to anode A2. By employing a capacitor C1 the beam may be made to pass rapidly from one anode to the next and slowly across each anode. By suitable choice of anode resistors the beam may be made to rest on a given anode until a further pulse is received. In a modification, Fig. 2 (not shown), the feedback is applied to the grid, the deflecting electrode being held at a constant potential.
Patent GB-725526-A (GB)
Title: Temperature-controlled time-delay signal-translating device
IPC: G05D23/275
Filed: 1953-09-08
Abstract: 725,526. Automatic temperature control systems. HAZELTINE CORPORATION. Sept. 8, 1953 [Oct. 1, 1952], No. 24803/53. Class 38 (4). A pair of magnetostrictive electric signal delay tubes 11a, 11b of nickel mounted between members 12a, 12b of sound absorbing material and having input windings 16a, 16b and output windings 26a, 26b respectively, are associated with an additional monitor section 35 made of the same material as the delay tubes so that it has the same thermal characteristics. To maintain the temperature of the delay tubes constant, an adjustable bimetallic switch 41 responsive to the temperature of the monitor section controls, through a relay 40, the energization of a heater winding 38 which runs through the delay tubes and the monitor section between end plugs 51a, 51b, 52a of heatinsulating material. A portion 49 of heater 38 is folded back along the outside of the monitor section to compensate for any slight difference in the thermal characteristics. In a modification the monitor section is separate from the delay tubes but shares a common end plug.
Patent GB-759809-A (GB)
Title: Device on instruments for the electrical indication of unbalance of revolving articles
IPC: G01M1/22
Filed: 1954-08-27
Abstract: 759,809. Measuring rotor unbalance electrically. AVERY, Ltd., W. & T. Aug. 27, 1954, No. 24905/54. Addition to 756,168. Class 40(1) [Also in Group XL(b)] In apparatus of the type described in the parent Specification for measuring the unbalance mass of a rotor, wherein the unbalance signal at each of two bearings is fed to one coil of each of two wattmeter movements supplied on the other coils with synchronous reference voltages 90 degrees apart, and having their spindles at rightangles, so that the resulting rotations of the spindle of each wattmeter, which are proportional to the rectangular components of the unbalance mass, cause a light beam to produce a spot on a polar chart, thus indicating the magnitude and phase of the unbalance mass at that bearing, is characterized in the addition of further optical means driven with the rotor whereby, after the measuring light spot is located and the wattmeter movements clamped, the optical means is rotated until its indicator coincides with the light spot, when the rotor is correctly located relative to a fixed drill for the removal of the unbalance mass. As shown (Fig. 1), the measuring light spot 48 on chart 45 is produced by the rotations of the spindles 42aa, 42bb of wattmeter movements 42a, 42b, which are clamped in the measuring position by electromagnetic brakes 103a, 103b when the driving motor is stopped. A rotatable holder 83, geared to the driving motor shaft 15a, contains a lamp 84 in a mask 85 with a diametric slot 86 whereby a light beam shines through the slot 86 for reflection from the polished inner surface of a cylindrical mirror 88 to form a line on the chart 45. The driving motor and the lamp-holder 83 are further rotated until the line on the chart passes through the measuring spot 48, when the rotor is correctly located relative to a drill for removal of material to obtain rotary balance. In a modification (Fig. 2) the measuring light beam is duplicated, so that one beam 41c produces the light spot 48 on the chart 45, and the other beam 41<SP>1</SP>c can pass through the slot 86 in the holder 83 to energize a photocell 84<SP>1</SP>, producing a signal which can stop the driving motor and switch on the drill.
Patent GB-828326-A (GB)
Title: New polymerisation process
Inventor: ROSE JOHN BREWSTER
IPC: C08F10/00
Filed: 1956-08-15
Abstract: A catalyst for polymerizing ethylene is obtained by grinding titanium or vanadium dichloride with aluminium chloride, bromide or iodide in the presence of a hydrocarbon liquid.  The titanium dichloride used may be in the form of the complex TiCl2.2NaCl obtained from TiCl4 + Na, and titanium trichloride may also be present.  Specification 794,785 is referred to.ALSO:Ethylene is polymerized using as catalyst the product obtained by grinding titanium or vanadium dichloride with aluminium chloride, bromide or iodide in the presence of a hydrocarbon liquid.  The titanium dichloride used may be in the form of the complex TiCl2.2NaCl obtained from TiCl4 + Na, and in Example V titanium trichloride is also present.  The polymerization may be effected in a hydrocarbon medium, e.g. petroleum ether, preferably purified by refluxing over alkali metal.  The ethylene may be passed through the catalyst suspension or across the surface thereof. Catalyst may be subsequently removed by the use of materials such as water, steam, methanol, ethanol, butanol or methanolic hydrochloric acid.  Specification 794,785 is referred to.
Patent GB-837559-A (GB)
Title: Expansion pipe joints
Inventor: ANDERSON RAYMOND CHARLES
IPC: F16L51/03
Filed: 1956-08-15
Abstract: 837,559. Pipe expansion joints. FLEXONICS CORPORATION. Aug. 15, 1956, No. 24994/56. Class 99(1). In an expansion joint comprising two corrugated coaxial tubes 20, 22 and a third corrugated tube 62 of larger diameter, the smaller tubes have sleeves 38, 48 which are joined as by welding at their outer ends 40, 52 to short pipe sections 26, 32 on which flanges 24, 30 of the tubes are also welded at 28, 34. The inner end of the sleeve 38 is flared so as to make a snug fit within the flange 44 of the inner end of tube 22 and is connected by an annular weld 46. The sleeve 48 telescopes within the sleeve 38 and is of smaller diameter so as to permit relative lateral deflection. The sleeve 48 is flared at its outer end 50 and at its inner end has strap like protuberances 56 formed from parallel slits in the sleeve near the inner terminal end. The protuberances engage in circumferentially spaced slots 54 of the sleeve 38 and are welded to the inner end flange 58 of the corrugated tube 20 at 60. The corrugated tube 62 surrounds and overlaps the inner end portions of the tubes 20, 22 and is closed at each end by sheet metal members 64, 66 which connect to the flange 58 of the tube 20 by the weld 60 and to the flange 44 of tube 22 by the weld 46. The end members 64, 66 have extending axial cylindrical parts e.g. at 72 and are flared at 74, 94 for connection to the outer tube 62 by annular welds 78, 80. In operation gas flows from right to left, the inner terminal end of sleeve 48 not impeding flow and the gas not impinging directly on the corrugated metal tubes. Gases escaping, e.g. via 54, into the chamber contained by tube 62 tend to push out the end walls 64, 66 with consequential contraction via sleeves 48, 38 on tubes 22, 20 respectively.
Patent GB-920033-A (GB)
Title: Improvements in aluminium oxide and the manufacture thereof
IPC: C01F7/428
Filed: 1959-07-21
Abstract: Pure dispersed alumina which when calcined at 500 DEG C. has an external specific surface area of greater than 150 m2/g. is obtained by dissolving aluminium or an aluminium alloy in mercury, a mercury alloy, gallium, or a gallium alloy at an elevated temperature, preferably at least 200 DEG C., cooling the solution so obtained and contacting the microcrystals of aluminium which separate with a hydrating or oxidizing medium to form pure dispersed alumina.  The dissolving is preferably carried out at at least atmospheric pressure in an oxygen-free, preferably inert, atmosphere.  The cooling is preferably to below 120 DEG C. especially between 10 DEG  and 80 DEG C., and the cooled solution may be spread out in a thin layer, the surface being exposed to moist air, the alumina formed appearing as a layer on the surface, which is preferably skimmed off before it becomes more than 1 cm. thick. The alumina normally has the characteristics that when hydrated it is amorphous and has a bulk density below 0,01 gm./cm2., and when it is anhydrous and calcined at 500 DEG C. its bulk density is below 0,1 gm./cm3., its external specific surface area is greater than 150m2./gm. (preferably greater than 285 m2./gm.) and its particles are smaller than 0,05 microns, preferably about 10 millimicrons.
Patent GB-335022-A (GB)
Title: Improvements relating to the crystallization of massecuites
IPC: C13B30/02
Filed: 1929-08-16
Abstract: 335,022. Haddan, R., (Allen, F. L.). Aug. 16,1929. Crystallizing.- Sugar crystals are obtained from massecuite by agitating it in a seriesof parallel planes and simultaneously cooling it in each of a series of parallel planes alternating with the first mentioned planes. The cooling means extend substantially across the whole section of the crystallizing vessel. A tank 1 contains a shaft 3 bearing pairs of stirrers 4, successive pairs being placed at 90‹ with one another. Between the pairs of stirrers are disposed cooling coils 5 supported by split bars 11. Cooling fluid is supplied by a main pipe 6 through cocks 10, and is' discharged into a gutter 7. The process may be carried out in tanks of other shapes than that illustrated.
Patent GB-251854-A (GB)
Title: Improvements in and relating to the manufacture of caps for incandescent electric lamps or the like
IPC: H01J9/30
Filed: 1925-10-08
Abstract: 251,854. Edison Swan Electric Co., Ltd. June 29, 1925, [Convention date]. Electric lamps. - Pins for locking bayonetjoints, and described particularly with reference to electric-lamp caps, are secured in place by a machine which first clamps the work, causes it to be pierced with oppositely located holes, and then advances the pierced work to a station at which wires are fed into the holes previously formed, after which the work is further fed to shear the wires and to position the work for receiving a riveting tool which is inserted within the cap and forms knobs on the ends of the rivets projecting within the cap. The work-holder 6, Fig. 2, is provided with two jaws, one fixed and one movable, between which the work is clamped, the movable jaw being operated against a spring 11 by a cam-roller 14 mounted in a lever 13 which is actuated by resiliently-mounted pins 16 in a press-head 23. The clamping-jaws slide between a pair of stationary members which form guides for piercers 17 actuated by cam-slots 27 in the head 23. On the ascent of the head 23 the piercers are retracted, the slide 6 is moved forward a distance x, Fig. 2, by a cam 45; and levers 33, Fig. 1, carrying pawls, are lifted to rotate rolls which feed wires into the pierced work. Further advance of the slide 6 through a distance y by the cam 45 shears the ends of the wires to form rivets which are headed on the descent of a head 37 carrying tong-like riveting tools, the upper ends of the tool-carrying arms being forced outwards to occupy recesses 44 in the guide for the head 37. On the return movement of the slide 6, the lever 13 is cammed upwards to release the roller 14 from the moving jaw, thereby releasing the work. The machine is controlled by a one-revolution clutch comprising a pawl 52, Fig. 7, adapted to engage driving- teeth 53 on a driving-wheel 3. A vertical spring- pressed slide 56 has a wedge-shaped upper end adapted to withdraw the pawl 52 from engagement with the driving-teeth, the slide being controlled by a pedal-actuated link 58 which, on being depressed, is deflected by a stop 62, thereby disengaging the end 60 from a detent 61 on the slide, the latter then rising under spring- pressure to stop the machine.
Patent GB-169967-A (GB)
Title: Apparatus for drying envelopes when treated with varnish for rendering portions thereof transparent
IPC: B31B19/00
Filed: 1921-09-22
Abstract: 169,967. Soc. Gaut, Blancan, et Cie. Oct. 7, 1920, [Convention date]. Endless-band conveyers, articles carried by.- Apparatus for drying varnished envelopes for use in combination with the varnishing-machine comprises a metal surface 1, Figs. 1 and 3, heated by electric or other means, over and in contact with which the envelope blanks 4 are carried by the conveyer belts 2, 3.
Patent GB-494447-A (GB)
Title: Improvements in methods of introducing electric conductors into hermetically sealed envelopes of which a substantial part is quartz
IPC: C03C27/04
Filed: 1937-09-16
Abstract: 494,447. Uniting metal to quartz ; glass manufacture. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and PIRANI, M. Sept. 16, 1937, No. 25192. [Class 36] [Also in Group XXIII] A strip of metal more than 0À02 mm. thick is sealed through vitreous material having a thermal expansion somewhat greater than that of quartz by collapsing the walls of a tube of said material on to the strip and the vitreous material is then sealed to the quartz part of a sealed envelope. A strip of molybdenum 0À03-0À035 mm. thick or a strip of tungsten may be used and the vitreous material may comprise 90À5 per cent of silica, 7À5 per cent of alumina, 1 per cent of calcium oxide and 1 per cent of barium oxide or 94À5 per cent of silica and 5À5 per cent of alumina.
Patent GB-459607-A (GB)
Title: Improvements in or relating to cutting devices
IPC: B26D1/08
Filed: 1935-09-11
Abstract: 459,607. Cutting webs. RUAU, F. F., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Sept. 11, 1935, No. 25241. [Class 31 (i)] In a cutting device of the type in which a pair of cutting knives are arranged to cooperate with one another during the cutting operation, one of the knives is carried by resilient means. The resilient means comprises flat spring plates 14 which are fixed at their lower ends to blocks 15 mounted on the bed 12 of the machine, and are secured at their upper ends to a block 13 on which the knife 7 is mounted. In order that the tension of the springs 14 may be adjusted, a screw 18 may be provided, co-operating with angle pieces 17, 19 secured to blocks 13, 15 respectively at one or both ends of the knife 7. The knife 6 is secured to an arm 8 which is pivoted at 9 and is oscillated by an eccentric 10. The cutting edge of the knife 6 is inclined to the horizontal, as in Fig. 2, and the two knives 16, 7 are angularly inclined to one another, as shown in Fig. 3, so that as knife 6 descends, knife 7 is pressed back against the action of the spring plates 14, and the cutting edges are kept in contact. The web 5 to be cut may be fed intermittently to the cutting device by any known means.
Patent GB-225827-A (GB)
Title: Improvements relating to furnaces for burning pulverised fuel
IPC: F23M5/08
Filed: 1924-10-23
Abstract: 225,827. International Combustion Engineering Corporation, (Assignees of Jackson, G. P., and Bell, J. E.). Dec. 7, 1923, [Convention date]. Pulverulent - fuel furnaces. - Downwardlydirected burners 9 are arranged along each side of the combustion chamber A which is provided at its lower end with a cooling screen formed of two oppositely-inclined sets of water-tubes 17, 18 which overlap at the centre of the combustion chamber and are connected at their inner and outer ends respectively to headers 19, 20, and 21, 22. Flow and return pipes 23, 24 connect each pair of headers with the corresponding drum 7 of a water-tube boiler and are formed, as shown, with bends to permit expansion and contraction. Baffles 25 are provided in the drums 7 to prevent siphoning. The walls 12, 13 of the combustion chamber A are formed with damper-controlled air inlets 11 and with openings 14, 27 which allow access to the lower part of the combustion chamber and may, if desired, be opened to admit air. Apertures 16, normally closed, are provided for the removal of ashes. In a modification, the pipes 24 connect with the water-tubes of the boiler instead of with the drums 7, while in another construction the pipes 23 are replaced by widely-spaced tubes extending upwardly through the combustion chamber to the drums 7. Fig. 5 shows a further modification in which the inner ends of the tubes 17, 18 connect with a single header 30 and the pipes 24 deliver into small headers 31 which are arranged within the drums 7 and communicate directly with extended boiler tubes 32. Specification 209,764 is referred to.
Patent GB-938958-A (GB)
Title: Improvements in or relating to articles of footwear
IPC: A43D113/00
Filed: 1960-07-20
Abstract: 938,958. Boots &c. SCHOLL MFG. CO. Ltd. July 20, 1960 [Aug. 11, 1959], No. 25332/60. Class 17 (2). A shoe has a wedge-shaped heel lift 2 above the outsole 1 and extending under the longitudinal arch, an insole 4 over the heel lift and the outsole, an outturned upper secured to the insole as at 17, and a yieldable arch lift 7 secured to the insole 4, the forward portion of the heel lift being skived off and disposed beneath the forward portion of the arch lift. The arch lift may be covered by a false insole 5. This arch lift 7 is preferably crescent-shaped and cuneiform in section. A toe stiffener 13, a counter stiffener 15 and small piece of lining 14 may be inserted. The upper, welt 19, insole, and counter stiffener are joined by lock-stitches or the like.
Patent GB-774876-A (GB)
Title: Improvements in or relating to sheet separating machines
IPC: B65H3/08
Filed: 1953-06-01
Abstract: 774,876. Feeding sheets. BACKHOUSE, H. T. Sept. 1, 1954 [June 1, 1953; March 24, 1954], Nos. 25358/54 and 25364/54. Divided out of 774,874. Drawings to Specification. Class 100(1) In apparatus for. separating sheets from the top of a pile to produce a stream of partly overlapping sheets, the sheet-lifting grippers engage and raise the rear edge portion of the top sheet, transfer the edge portion to other gripping means, and move either rearwardly or transversely of the edge portion, and then downwardly and inwardly around the portion of the lifted sheet to engage the next sheet beneath. The apparatus is substantially as described and shown in Specification 774,874 but the following modifications are described:- (a) The fixed grippers (130) are omitted and the forwarding grippers (142) have a prolonged dwell after they have taken the sheet from the lifting grippers (94). For example, the forwarding grippers reach the limit of their backward movement at 190 degrees in a complete sheet separating cycle, take the sheet between 190 and 210 degrees, hold the sheet stationary until 360 degrees, move forward between 360 and 440 degrees, release the sheet at 440 degrees, and then return. The centre air blast (144) may be operative from 210 to 420 degrees. (b) The forwarding of the sheet is begun simultaneously with the beginning of the downward and forward movement of the lifting gripper (94) so that the latter does not move in beneath the raised sheet but follows up its forwarding movement. Specifications 427,041, 741,226, 774,875, 774,877, 774,878 and 774,880 also are referred to.
Patent GB-504181-A (GB)
Title: Improvements in salt-cellars, casters, and like receptacles
IPC: A47G19/24
Filed: 1937-09-20
Abstract: 504,181. Powder distributers. WATT, J. Sept. 20, 1937, No. 25421. [Class 18] A salt cellar &c. of polygonal section is provided with a filling opening normally closed by a screw cap &c. 3 and with one or more discharge apertures 4 suitated at the corners of the shoulders of the receptacle. The filling opening may be in the base.
Patent GB-322245-A (GB)
Title: Improvements in soles for boots and shoes
IPC: A43B13/00
Filed: 1928-09-05
Abstract: 322,245. Cooke, J. E. M. Sept. 5, 1928. Soles; connecting uppers to insoles and soles.- A one-piece rubber or like leather substitute sole 1 for a boot or shoe is provided with a raised periphery at the heel portion 4 into which the combined inner sole 6 and upper 7 seats. A reinforcement 5 of plywood may be embedded in the heel and this serves also to hold the nails which secure the upper and insole to the sole. A heel lift 10 may be secured to the sole.
Patent GB-1306476-A (GB)
Title: Process for producing copolymers of conjugated vinyl vinylidene  and vinylene compounds with olefins
IPC: C08F236/04
Filed: 1971-04-19
Abstract: 1306476 Copolymerization process KANEGAFUCHI KAGAKU KOGYO KK 19 April 1971 [2 May 1970] 25778/71 Heading C3P Copolymers are prepared by contacting (A) a monomer of formula CH 2  = CR 1 R 2  or CH 2  = CR 3 -CH=CHR 4 , where each of R 1 -R 4  is hydrogen, halogen or a non-polymerizable C 1 - C 20  hydrocarbon or halohydrocarbon residue; with (B) a conjugated monomer of formula CH 2  = CR<SP>1</SP>Q or CHR<SP>1</SP> = CHQ where R<SP>1</SP> is hydrogen, halogen or a non-polymerizable C 1 -C 20  hydrocarbon group, optionally with an inert substituent, and Q is -CN or -CO.Y, where Y is H, Hal, R, ZH, ZR, ZMe or NR<SP>a</SP>R<SP>b</SP>, Z is O or S, R is an organic group of 1 to 20 carbon atoms, R<SP>a</SP> and R<SP>b</SP> are each H or a C 1 - C 20  organic group and may be joined together to complete a ring, and Me is a monovalent representation of an element of Groups I, II or III, or ammonium; in the presence of a catalyst comprising (1) a compound of formula R n AlX 3-n  where R is an organic group, X is a halogen, and n is 1 to 2; and (2) a compound of formula where each of R<SP>1</SP>, R<SP>11</SP> and R<SP>111</SP> is hydrogen, a halogen or an organic group. The polymerization may be carried out in an inert solvent or in the bulk monomers. The products are alternating copolymers. The examples describe the copolymerization of acrylonitrile and butadiene, methyl acrylate or methacrylate with butadiene, acrylonitrile, methyl acrylate or methyl methacrylate with styrene, methyl acrylate with propylene or vinyl chloride, acrylonitrile with allyl chloride and N,N-dimethylacrylamide with vinyl chloride. The exemplified catalyst components are (i) the acetylacetone and dibenzoylmethane complexes of Co(III) and (ii) EtAlCl 2  and Et 3 Al 2 Cl 3 .