baber/WOPTO huggingface dataset:
Patent GB-884119-A (GB)
Title: Snap-on metal jacketed insulation for pipes
Inventor: RUTTER DONALD P
IPC: F16L59/02
Filed: 1960-10-01
Abstract: 884,119. Thermal insulation for pipes. JOHNS-MANVILLE CORPORATION. Oct. 1, 1960, No. 33759/60. Class 99(2). Insulation 2 having at least one pair of adjacent edges 3 forming a longitudinal slit, is surrounded by a jacket 10 of resilient sheet metal having the edges thereof meeting along a line generally parallel to the slit in the insulation. The jacket resiliently urges the adjacent edges 3 of the insulation in to continguous relationship. As shown, the insulation is formed of a pair of moulded, semi-cylindrical sections 2 each secured to the aluminium jacket 10 by adhesive strips 8 or an adhesive coating. A vapour barrier of kraft paper secured to the jacket by an asphalt coating may be provided
Patent GB-1146258-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C13/00
Filed: 1967-07-21
Abstract: 1,146,258. Lifting tongs. KERMA CORP. 21 July, 1967 [25 July, 1966], No. 33777/67. Heading B8H. An overhead bridge crane A comprises a vertically movable column D with load-engaging tongs E. The column D is raised and lowered by rotation of a drum 40, cables 42, 43 attached thereto passing round sheaves 44, 45 rotatably supported in vertically movable members connected by means including an equalizing lever 46 to a member 47 supported for limited vertical movement in a guideway 48 in the column D. The cables 42, 43 extend upward to trolley 14 where they are connected to a pair of stabilizers (49), Fig. 1 (not shown). The tongs E may be rotated about a vertical axis by a motor 102 on the column D driving a shaft 108 through a speed reducer 106. The tongs E may be opened and closed by vertical movement of an actuator rod 68 mounted on a thrust bearing 72 in a crosshead 71 pivotable about bosses 75. The rod 68 is raised or lowered by rotation of a drum 41 carrying cables 94, 95 which pass around sheaves 86, 88 and have their opposite ends wound on and connected to the drum 40. The crosshead 71 supports sheaves 76, 77 carrying slings 78, 80 which are connected at one end to slidable sheave blocks 82, 84 respectively supporting the sheaves 86, 88. The blocks 82, 84 can slide in guideways 89, 90. The other end of the slings 78, 80 are connected to the sliding frame 47 at 91, 92. In removing an ingot (not shown) from a soaking pit all cables 42, 43, 94, 95 contribute to the support of the column D. If cables 42, 43 break the member 47 would move downwards until its lower end engages the framework of the column D whereupon the entire weight is transferred to the cables 94, 95 without the tongs E opening and dropping the load.
Patent GB-398468-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/82
Filed: 1931-12-05
Abstract: 398,468. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Spanner, H. J. ; 117, Chausseestrasse, Berlin.) Dec. 5, 1931, No. 33788. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 6, 1931]. [Class 39 (i).] A cathode comprises a relatively compact portion carrying the activating material and constituting a deposit point for the discharge and another point which transfers thereto heat absorbed from a high or medium frequency field or from a discharge. Such heating is of.particular value in degassing or activating operations. In one form, Fig. 1, the cathode comprises an activated portion 2 carried by the ends of a stout metal ring portion 1 secured to a support 3, and energy absorbed from the high frequency field of a solenoid external to the tube is converted into heat in the portion 2. The ring 1 may be replaced by a metal plate 4, Fig. 2, provided with slits 5 along the edge adjacent to the portion 2. Fig. 3 shows a further construction in which an activated cylindrical portion 7 is carried by a stout metal ring portion 6. Fig. 7 shows a complete rectifier tube with its external solenoid 11, the cathode comprising an activated portion 2 carried by a relatively large shortcircuit ring portion 16. Fig. 8 shows an arrangement in which the activated portions 14, 15 of electrodes at opposite ends of the tube are heated by a powerful discharge between open-ended cylindrical portions 12, 13 which may, however, be insulated from the portions 14, 15 respectively. Overheating of the activated cathode portion may be prevented by providing it with short-circuit clips or plates or fin-like or rod-shaped heat-conducting members.
Patent GB-1005384-A (GB)
Title: Improvements in or relating to luminescent materials and methods of their preparation
IPC: H01S3/093
Filed: 1961-09-21
Abstract: Luminescent material, particularly for use in an optical maser, comprises calcium, terbium and cerium fluorides.  The material can include terbium in the range of 0.3 to 3% and cerium in the same range based on the total <PICT:1005384/C4-C5/1> weight of the material, or cerium in the range of (0.5-1.5) of the amount of terbium can be used.  The material can comprise 49.3% calcium, 48.7% fluorine, 1% terbium and 1% cerium based on the total weight of the material. A single crystal of the material can be prepared by placing powdered terbium and cerium fluorides and calcium fluoride crystals in a graphite boat inserted into a quartz tube. Helium is flowed through the system and a radio-frequency generator passed over the boat at the rate of 4 inches an hour at a temperature of about 1400 DEG  C., and then at 2 inches per hour at the same temperature.  The boat is then placed in an annealing furnace at a temperature of 1000 DEG  C. for six hours and then cooled at the rate of 200 DEG  C. per hour to room temperature.  The resultant crystal can be employed in the apparatus described in U.S.A. Specification 2,929,922 or in Specification 1,005,383.  In the coherent optical generator shown in the drawing a crystal 11 has an imperfection face 14 and other faces polished flat with 5 x 10-5 cms. and perpendicular to each other to within one minute of arc.  The crystal is pumped with U.V. radiation from high pressure mercury discharge lamps 12 by large aperture spherical mirrors 13, 15.  The crystal is maintained in liquid nitrogen at a temperature of approximately 79 DEG  K. and monochromatic coherent light having a wavelength of 5500 <\>rA is generated.  Generation of I. R. and U. V. light and the use of a pump source 12 comprising a gaseous discharge flashbulb emitting white light are also referred to.
Patent GB-1211157-A (GB)
Title: Improvements in or relating to arrangements for the selective operation of gas engines with different gases of different calorific values
Inventor: KLAUNIG WOLFGANG
IPC: F02B43/00
Filed: 1968-07-16
Abstract: 1,211,157. Regulating. MASCHINENFABRIK AUGSBURG-NURNBERG A. G. July 16, 1968 [Aug. 25, 1967], No.33888/68. Heading F1B. Pipes 4, 5, are adapted to supply a gas engine with gases of different calorific values, changeover from one gas to the other being accompanied by variation of the gas pressure setting in the supply pipe 2 in inverse proportion to the calorific value of the gas being used. As shown the engine normally operates on gas from the pipe 4 with the supply pressure set by a valve 6. If the supply pressure drops, a changeover valve 13, controlled by the pressure served in pipe 12, is actuated so that line 10 is vented, to close shut off valve 8, and line 11 is pressurized to open valve 9 and bring the gas supply pipe 5 into operation, the gas supply pressure being set to an appropriate valve for the fuel by regulator 7. Simultaneously pipes 20, 21, are pressurized to adjust the ignition timing device 19 and air throttle control 18. Delay devices 22, 23, may be provided in lines 10, 11, to time the changeover and pressure operated switches 24, 25, indicate which gas is in use. The changeover may be operated manually or automatically in dependence upon time or gas-holder state. The valve 13 may also produce a connection of the supercharging air temperature or cooling water temperature.
Patent GB-993547-A (GB)
Title: Improved evaporation control method
IPC: B01D1/00
Filed: 1963-08-27
Abstract: 993,547. Automatic control of evaporation. HOOKER CHEMICAL CORPORATION. Aug. 27, 1963 [Aug.30, 1962], No. 33902/63. Heading G3R. In an evaporating system a dilute supply of material to an evaporator is automatically controlled in accordance with the concentration of the material in the evaporator, and a concentrated return feed to the evaporator is automatically controlled in accordance with the level of material in the evaporator. In Fig.1, brine from an electrolytic cell is passed in turn through three evaporator units labelled 3rd, 2nd and 1st. In each evaporator unit the liquor is circulated through a steam heater, e.g. 7, by means of a pump, e.g. 20, the vapour from the 2nd and 1st units being used to feed the heaters associated with the 3rd and 2nd units. The supply of relatively dilute liquor from the 2nd unit to the 1st through a conduit 11 is regulated by a valve 10 automatically adjusted by a controller 12 in dependence on the difference in temperature of the liquor, transmitted through line 13, and that of the vapour, transmitted through de-superheater 16 and line 15, so that the concentration of the liquor in the 1st evaporator unit is maintained constant. The output of the 1st evaporator unit is passed through salt separators 5 and 2 and a vacuum flask tank 3 to emerge finally at 35. The proportion of relatively concentrated liquor fed back to the 1st unit through a conduit 9 is regulated by a valve 8 automatically adjusted in dependence on the level in the 1st unit in order to keep that level constant. The output of separator 2 is regulated by a valve 32 automatically adjusted by a level measuring device 30 to keep a constant level in separator 2. Excess slurry from separator 2 passes back to a further separator 4 in conduit 11. Modifications are described in which variations of concentration in the 1st evaporator unit are detected by the effect of the liquor on radiation passing through it or by comparing the specific gravity of the liquor with that of water under the same hydrostatic pressure.
Patent GB-1057098-A (GB)
Title: Electrostatic camera tube
IPC: H01J31/34
Filed: 1964-08-19
Abstract: 1,057,098. Television pick-up tubes. GENERAL ELECTRIC CO. Aug. 19, 1964 [Sept. 16, 1963], No. 33927/64. Heading H1D. A camera having an all-electrostatic electron optical system includes an electron beam source 1 projecting a forward electron beam, electron multiplier and focusing section 2, a deflecting section 3, and a section 4 for collimating the forward beam and controlling the perpendicularity of landing of the forward beam on a target 5, with a return beam impinging on a first dynode of the electron multiplier and producing an output signal in the electron multiplier, this first dynode being formed by a secondary electron emitting surface 32. Beam source 1 includes a heated cathode 11, the emission of electrons being controlled by electrode 12, anode 13 and electrode 14 having a defining aperture 15. Section 2 includes a drift tube 20, electrostatic electron lens 21, electron multiplier 22 and a repeller electrode 23. Lens 21 comprises electrodes 24, 25 and a central electrode insulated by material 27. The surface 32 of electrode 25 is coated with a secondary electron emissive material and serves as the first dynode of electron multiplier 22. Alternatively a separate element positioned forward of electrode 25 may be used as the first dynode (Fig. 2, not shown). Repeller electrode 23 guides the secondary electrons emitted from surface 32 to the second dynode 37 of multiplier 22. Electron multiplier 22 includes third dynode 38, fourth dynode 39, collector electrode 40 and fifth dynode 41. Alternatively the additional dynodes and collector electrode may be arranged radially from first dynode 32 with a modification to the repeller electrode. Section 3 comprises an electrostatic deflection yoke 45 including a tubular insulating support 48 provided with two pairs of interlaced sinusoidal electrodes, a horizontal deflection pair 49 and 50; and a vertical deflection pair 51 and 52. Post-deflection focusing and collimating section 4 comprises a conductive member 55 and a tubular insulating support 56, a landing control electrode 57 and a collimating electrostatic lens 58 being provided on the interior surface of support 56. Lens 58 comprises a linear spiral electrode 60 of high pitch and a linear spiral electrode 61 of low pitch. The end of electrode 60 adjacent electrode 57 is connected to it, electrodes 60 and 61 are interconnected at their adjacent ends and the forward end of spiral electrode 61 terminates at mesh electrode 63. Target section 5 includes a viewing window 67 which closes the forward end of envelope 7. On the interior surface of window 67 is deposited a transparent signal plate 68 and a photosensitive target 69 of the photo-conductive type, for example, antimony trisulphide. Instead of the vidicon target illustrated, section 5 may comprise the image section of an image orthicon.
Patent GB-340366-A (GB)
Title: Improvements in or relating to presses
IPC: B30B15/00
Filed: 1929-11-07
Abstract: 340,366. Metal working presses. HOOVEN, OWENS, RENTSCHLER CO., Hamilton, Ohio, U.S.A.-(Assignees of Byerlein, A. A. ; 8316, Woodward Avenue, Detroit, Michigan, U.S.A.) Nov. 7, 1929, No. 33963. Convention date, Nov. 8, 1928. [Class 83 (iv).] The bed 25 of a sheet metal &c. press with die holding slide 15 is adjusted to the desired height by nut and screw 28 at each corner and driven from an electric motor 33 through bevel &c. gearing the bed then being locked in position by fluid operated band brakes 37 on each nut 28 to prevent them from giving, or turning on the power stroke and also by the wedging action of gibs 63, 64 to lock by fluid pressure the bed 25 against the sloped surface 62, Fig. 4, of the frame upright 11, this relieving the thread of the screws 28 of the pressing stress, the latter locking action being as described in Specification 312,640, [Class 83 (iv), Metals, Working]. A single hand controlled valve 55 supplies fluid to master cylinders 45 and 73 each of which by virtue of a smaller plunger e.g. 47 supplies higher pressure fluid to the band brakes and locking arrangements respectively.
Patent GB-1298495-A (GB)
Title: Gelatinous blasting explosive
Inventor: BALDWIN WILSON CHARLES GEOFFRE
IPC: C06B31/40
Filed: 1970-07-13
Abstract: 1298495 Explosive compositions EXPLOSIVES & CHEMICAL PRODUCTS Ltd 5 July 1971 [13 July 1970] 33973/70 Heading C1D A gelatinous blasting explosive comprises ammonium nitrate; more than 10% of a non-high explosive mono- or di-nitro aromatic compound as a principal sensitizer for the ammonium nitrate; water; a hydrophilic gelling agent and a cross-linking agent; and as an ancillary sensitizer, discrete particles of foamed synthetic plastics material. The aromatic compound may be dinitrotoluene, dinitrobenzene, mononitrobenzene, or mononitrotolueno, the gelling agent guar gum, the cross-linking agent borax, and the ancillary sensitizer spherical granules of foamed styrene polymer or copolymer. Sodium nitrate may be present with the ammonium nitrate.
Patent GB-647231-A (GB)
Title: Improvements in filling machines for superphosphates and similar materials
IPC: B65B65/06
Filed: 1947-12-24
Abstract: 647,231. Packing. BILLERUDS AKTIEBOLAG. Dec. 24, 1947, No. 34172. Convention date, Feb. 18, 1942. [Class 94(i)] In filling machines of the type having screw, worm or like feeding means, for packing into bags, superphosphates, aluminium sulphate and other materials, the working surfaces of a screw worm or like rotatable feeding member made of rigid material, and preferably also its associated housing, are covered with a layer of rubber or like resilient material of a thickness such as to undergo an appreciable deformation under the action of the working pressures exerted on or between the working surfaces in operation. The thickness of the resilient layer (applied by casting) is about 7.5 to 10 m.ms. thick. In operation, the resilience of the layers causes coatings of the material being packed which tend to adhere to the working surfaces, to be broken and disengaged therefrom.
Patent GB-164675-A (GB)
Title: Improvements in machines for manufacturing hollow glass articles
IPC: C03B9/20
Filed: 1918-01-21
Abstract: 164,675. Hall, R. F. Jan. 21, 1918. Blowing.-Relates to automatic bottle-blowing machines of the Owen's type. According to the invention, the finishing-mould M is mounted on a lever 300 of the first order provided with a balance weight 301 which slides on a bar 302. The lever 300 is operated by a cam 24, and the link mechanism 123, 126, 309, which operates the mould halves, is actuated by a cam 17. Electric solenoids or pneumatic pressure gear may be used in place of the cams for operating the machine. Specifications 164,764, 165,453, 165,799, and 165,800 are referred to.
Patent GB-1427407-A (GB)
Title: Multi-frequency code signal receivers for use in telecommunicati ons systems
IPC: H04L27/30
Filed: 1973-07-18
Abstract: 1427407 Automatic exchange signals SIEMENS AG 18 July 1973 [26 July 1972] 34217/73 Heading H4K A V.F. signal receiver is arranged to distinguish between signals consisting of a pair of audio frequencies, e.g. dialled digits, and signals  consisting of two consecutive pairs of audio frequencies, e.g. data signals, by means of a timer which is reset by signals of the latter type but not by those of the former type. The timer has an initial threshold period for enabling spurious signals to be disregarded. Each frequency of a pair is selected from a different group of four frequencies. Incoming signals are amplified EV and then split into upper and lower frequency groups by broad band filters GE1, GE2. Individual frequencies within these groups are picked off by the two sets of four filters D1-D4 and D5-D8. Coincidence of a frequency in each group is detected by AND gate K1 whose output is effective to start timer SZ. If the signals do not persist, the receiver is reset via gates N1, S3, and M4. If they outlast the threshold period of SZ, a pulse therefrom on terminal T1 causes the contents of the filters D1-D8 to be read into respective stores F1-F8 and also sets a two-step counter ZS to its Z1 state. Assuming that the incoming signal is a digit, then SZ eventually times out by pulsing its terminal T2 so as to step counter ZS to its Z2 state. Output terminal u is thereby enabled to permit a decoding network DKN to read out the contents of filters D1-D8, the stored signals in stores F1-F8 being ignored since bi-stable B1 is set at this time If the incoming signal had been a data signal, the first pair of tones would cease before SZ timed out. The second pair of tones, if they persist, therefore cause SZ to again pulse its terminal T1. Counter ZS is stepped to its Z2 state and thereby inhibits SZ from pulsing its terminal T2 and thus prevents B 1 from being set. On this occasion therefore, the decoding network reads out the current contents of filters D1-D8 and also reads out the stored contents of stores F1-F8. When the incoming signal ceases, the receiver is reset via gates N1, K2 and M4. The gates S3, K3 and two stage counter ZG, reset the receiver if the second pair of tones do not persist during the threshold time of timer SZ.
Patent GB-1199353-A (GB)
Title: Signalling System for Determining the Position of a Train Vehicle
IPC: B61L23/16
Filed: 1968-07-18
Abstract: 1,199,353. Track circuits. WESTINGHOUSE ELECTRIC CORP. 18 July, 1968 [23 Aug., 1967], No. 34249/68. Heading B7N. In a track signalling system wherein the rails are electrically continuous and carry traction current, the track circuits are defined by shortcircuit members 24, 26 connected across the rails and adjacent circuits are operated on different frequencies. Signal transmitter 16 operating at frequency F 1 , feeds a loop 18 coupled to the rails at short-circuit 26 and the associated receiver 22 is fed from a loop 20 coupled to the track circuit at short-circuit 24. Additional receivers coupled to the rails may be provided intermediate the ends of the circuit to indicate which part of the circuit is occupied by a train. For additional security the circuit transmitters are modulated and the receivers give a clear indication only when both carrier and modulation is present and the modulation is comparable with the known modulation transmitted. The modulation is used for train command purposes.
Patent GB-1272757-A (GB)
Title: Liquid atomising devices
Inventor: SAUNDERS RONALD DOUGLAS HAIG
IPC: F23D11/10
Filed: 1968-07-18
Abstract: 1,272,757. Spray - producers. JOSEPH LUCAS (INDUSTRIES) Ltd. 9 July, 1969 [18 July, 1968], No. 34307/68. Heading B2F. [Also in Division F4]  In a liquid fuel atomising device, particularly for use in the burners of gas turbine engines, the liquid is delivered from an annular supply passage 13 on to the blades 18 of an air swirler 17 in air conduit 12, through nozzles 19 which are inclined in an opposite direction to that of the respective blades, as shown in Fig. 2.
Patent GB-870782-A (GB)
Title: Improvements in loading- and unloading devices for the cartridge magazines of guns
IPC: F41A9/83
Filed: 1959-10-12
Abstract: 870,782. Charging cartridge magazines. VERWALTUNGSGESELLSCHAFT DER WERKZEUGMASCHINENFABRIK OERLIKON. Oct. 12, 1959 [Oct. 24, 1958], No. 34476/59. Class 92. A loading and unloading device for cartridge magazines has a yoke consisting of legs 1 and 3 and a connecting piece 4 wherein the forward aperture of the yoke can be closed at least partially by turning a bridge 3a about the longitudinal axis of one of the legs. The bridge 3a which may or may not connect with the leg 1 when closed, is turned by a handle 15. The cartridges are supported on a tray 2 and can be clamped between the bridge and a curved plate 11 which has a projecting lip (Fig. 4, not shown) to engage in the extractor groove 30a of the cartridge. The plate 11 is articulated at 13 on a pin 9a passing through the piece 4 and is urged towards the piece 4 by a spring 22 compressed between a plate 10 (part only shown in section in Fig. 1) which extends from the pin 9a to the legs and 3. A spring plunger 14 passing through the handle 15 is normally retracted from a slot in the end 9b of the pin 9a but is engaged therein when a lever 20 is pressed, thereby causing the plate 11 to clamp the cartridges. A thumbscrew 21 adjusts the protrusion of the plunger 14. To remove a row of cartridges from the magazine of a medium calibre gun as illustrated in Fig. 6 the bridge 3a is opened, the yoke inserted until a projection 4a trips the retaining pawl 31; the bridge is then closed, the lever 20 pressed and the cartridges withdrawn.