| 摘要 |
378,444. Static contact rectifiers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. May 6, 1931, No. 13452. Convention date, May 15, 1930. Drawings to Specification. [Class 37.] A rectifier wherein each cell comprises two substances of different electron emissive power has an intermediate layer formed independently of the substances and comprising a non- conductive solid material. The intermediate layer which may be smeared or projected on to either of the adjacent substances may consist of a very thin plate or strip of artificial resin, lacquer, collodion or silicious varnish. An intermediate layer of material known under the Trade Mark " Bakelite " about 0À001 mm. thick, or a lacquer layer of 0À0001 to 0À01 mm. may be employed. The insulating layer projected on a metal of good emissive power may have in turn a metal of low emissive power projected thereon. A number of cell units can thus be constructed in series or parallel relationship. The cell plates may be centrally apertured and clamped between endplates. Copper, zirconium, titanium, hafnium, or thorium may constitute the cathode, and copper, lead, molybdenum, tungsten or iron sulphides, copper iodide or silver chloride with free iodine, iron scale, manganese or cadmium oxide, or lead dioxide the anode.
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