A procedure to achieve lightning and similar gas leaks quickly noted (Machine-translation by Google Translate, not legally binding)

摘要

A method to achieve are quickly noticed the gas leaks of the lighting and the like consisting essentially of incorporating to said gas an adequate amount of gases or vapors of a product such as crotonic aldehyde or another of similar effects that irritate the mucous membranes nasal and larynx quickly produce in people who breathe a cough that persists while its cause persists being that intense enough to wake people if they breathe the air with gas while asleep being able to incorporate into the gas said irritant product either in the factory for general effects either in each particular installation by passing it through a closed chamber in which simply licks the liquid surface of said aldehyde or a porous surface impregnated thereof and exposed to the action of gas under adequate and adjustable surface magnitude. (Machine-translation by Google Translate, not legally binding)