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    • 41. 发明专利
    • Improvements in or relating to magnetrons
    • GB721967A
    • 1955-01-19
    • GB1277352
    • 1952-05-20
    • RAYTHEON MFG CO
    • BROWN WILLIAM CYRUS
    • H01J23/213
    • 721,967. Magnetrons. RAYTHEON MANUFACTURING CO. May 20, 1952. No. 12773/52. Class 39 (1). In a multi-cavity magnetron tuned by axially movable plungers, one for each cavity, strapping is provided at the ends of the plungers extending into the cavities. The tuning structure is dimensioned to resonate in the # mode at a frequency different from the operating frequency of the magnetron; the strapping prevents resonance of the tuning structure in modes other than the # mode. The anode segments 12 are provided with notches 35 to allow the strapped plungers 32 to enter the cavities. The strapping may consist of a pair of concentric rings 33, each connected to alternate plungers, the rings lying in notches in the plungers, or below the plungers, but connected to them by small extensions on the lower ends of the plungers. In another arrangement, all the plungers may be connected together by a single strap set in notches in the lower outer corners of the plungers. The tuning plungers 32 extend from a metal ring 31 secured to the lower end of a movable pole-piece 23. The pole-piece 23 contains a recess 24 for accommodating the upper end of the cathode cylinder 18. The anode structure is provided with conventional strapping 13 at its lower end.
    • 43. 发明专利
    • Improvements in electrostatic gas cleaning devices
    • GB721274A
    • 1955-01-05
    • GB403551
    • 1951-02-19
    • RAYTHEON MFG CO
    • MACKENZIE KENNETH WARD
    • B03C3/74
    • 721,274. Electrostatic filters. RAYTHEON MANUFACTURING CO. Feb. 19, 1951. No. 4035/51. Class 39 (1). An electrostatic precipitator comprises a number of sections, each containing a plurality of precipitating electrodes, the sections are removably disposed in a frame, the voltage supply to each section is disconnectable without interrupting the voltage supply to the remaining sections, and certain of the sections may be isolated from the gas flow while permitting gas flow through other sections. As shown the frame comprises a rotatable vertical cylindrical casing 22 divided up by radial partitions 61 into a number of sector-like compartments 33. Each compartment contains a number of electrode sections each of trapezoidal cross-section. Parts of the compartments between transverse plates 62, 63 and outer spaces 65 of the sections are provided with heat insulating material. Each compartment may contain two ionizing sections and three precipitating sections. 'The electrodes in the precipitating sections may be tubular, or of plate form. In the ionizing sections thin discharge electrodes are surrounded by tubular electrodes. The individual voltage supply terminals 88 for the sections are mounted on bell-shaped insulators 86, Fig. 13, and the conductors 84 leading to the electrodes are provided with holes 89, 90 so formed that air sucked into the apparatus through the terminals is directed against the insulators to maintain them free from dust. The sections may be provided with individual power packs, or connected to a common voltage source, the various terminals being strapped together. For energizing the individual power packs or for providing a connection to the common voltage source, rollers 107, Fig. 4, are provided to move over rails 103 which include a blank section for de-energizing sections isolated from the gas stream. The sections may be energized in tiers. The precipitation apparatus comprises a gas inlet duct 34, Fig. 1, and an outlet duct 35 leading to a heat exchanger 36 from which the gas passes to, for example, the intake of a furnace. Clean gas is removed from the duct 35 through a duct 50 which feeds the gas to a blower 51. The blower 51 operates to clean isolated compartments of the precipitator apparatus by forcing the gas through a nozzle. This gas together with particulate matter is drawn off through a duct 54 to a cyclone separator 55. The gas derived from the cyclone separator is also fed, through the duct 58, to the furnace intake.
    • 45. 发明专利
    • Improvements in turbulent flow, restricted passage dryer
    • GB715945A
    • 1954-09-22
    • GB3082050
    • 1950-12-18
    • RAYTHEON MFG CO
    • G03D15/02
    • 715,945. Drying materials in long lengths. RAYTHEON MANUFACTURING CO. Dec. 18, 1950 [Feb. 17, 1950], No. 30820/50. Class 34(1) Apparatus for drying strip material such as kinematograph film 98 comprises a film supporting wheel 50 with peripheral groove 60 and housed in a container 12 with cover plate 13 to form with the container a narrow passage 66 for the film, heated air being introduced at a region intermediate the ends of the passage. The whel 50. of aluminium has concentric grooves 56 aligned with ducts 36, 38 in mounting plate 34 which carries the shaft 44 on which rotates the wheel 50. Fitting around the hub 40 of plate 34 and against the other side of the plate is a duct plate 68 of an insulating material and with openings 70, 72 coinciding with openings 36, 38. A back plate 74 of insulating material fits against plate 68 and has an opening 78 coinciding with openings 70 and 36, all of which open into inlet fitting 80. A passage plate 14 has a circular opening 15 recessed to form a flow transfer port 16 and an opening forming outside boundaries for outlet ports 20, 22 and a circular recess for guide roller 96. A discharge baffle 90 separates ports 20, 22. The wet film enters the apparatus around roller 96 and is guided into the groove 60 of wheel 50, is led over the wheel to rollers 100, 102, 104 and thence to suitable winding means by which it is pulled through the apparatus. Heated air from a blower 105 operated by motor 107 and a controlled heater 109 flows through inlet 80 to grooves 56. thence in both directions around the wheel to duct 16, thence with a high degree of turbulence in both directions through passage 66 to dry the film and to outlet ports 20, 22. In a modification the passage 66 is replaced by a number of short passages, the thicknesses of which are individually adjustable.
    • 47. 发明专利
    • FR1069294A
    • 1954-07-06
    • FR1069294D
    • 1952-12-30
    • RAYTHEON MFG CO
    • H01J25/24H01J25/68
    • 728,932. Velocity-modulated tubes. RAYTHEON MANUFACTURING CO. Nov. 11, 1952 [April 8, 1952], No. 28442/52. Class 39 (1). The repeller electrode in a retarding field oscillator tube is constructed at its end nearer the accelerating anode to provide an electrical field which can return to the outer surface of the accelerating anode those electrons which penetrate furthest into the repeller electrode. The tube shown comprises a hollow spheroid cathode 11 heated by a coil 12 and emitting electrons through an anode in the form of a conical member 13 forming part of the wall of a resonant cavity 14 into a hollow cylindrical repeller electrode 15 comprising a tube of insulating material coated inside and outside with conductive material. The tube 15 is mounted so as to be electrically isolated for direct current from the wall of the opening 18 in the cavity 14 but coupled capacitively to the cavity at radio frequency through a virtual short-circuit. Tuning is effected by moving the repeller tube 15 relative to the anode 13 by means of a rod 20 passing through the envelope 10 by way of a bellows 21 which permits the rod 20 to be moved in either of the directions indicated by the arrows 22 and 23. A rod 24 of conductive material is mounted inside the tube 15 and is provided with a terminal 26 for connection to a source of potential which for tuning purposes may be different from that of the tube 15, in which case the rod 24 must be suitably insulated from the tube 15. A spike 25 formed at the end of the rod 24 distorts the repelling field so that those electrons which penetrate furthest into the repeller tube 15 are returned to the outer surface of the anode 13. In an alternative arrangement the repeller electrode is a hollow conductive cylinder and is provided with openings near the end of the wall of the cylinder near the anode to distort the repelling field. The openings may be slots in the wall or may be provided by connecting a short section of tube to the main electrode by a plurality of rods lying in the cylindrical surface of the tube.