Photoflash lamp

F - Mech Eng,Light,Heat,Weapons – 21 – K

Patent

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52/51, 67/9

F21K 5/08 (2006.01)

Patent

CA 1079071

ABSTRACT OF THE DISCLOSURE An improved primer material is disclosed for a high- voltage type flashlamp construction. Said primer material com- prises a solid mixture of a combustible fuel and an oxidizer for the fuel such as alkali metal chlorates and perchlorates, and which further contains a combustion-supporting oxide of the type which is converted to a lower oxide upon combustion of the mixture. A still further alumina gel additive in said primer composition modifies the ignition characteristics in a desirable manner for use in a high-voltage type flashlamp An all-glass flashlamp combustible is disclosed in which the improved primer material can be disposed between a pair of spaced-apart inlead wires to provide the desired ignition of a quantity of filamentary combustible material distributed within the lamp envelope.

246271

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