2004-10-30/2019-08-26 - From the OHS PC Database, derived from A Guide to North American Organbuilders, rev. ed., by David H. Fox (Organ Historical Society, 1997). — Patent awarded to John W. Gilbert, New York City, New York, 1887: Patent #364,243; 7 June 1887; Automatic Air Regulator for Organs; "the object of my invention is to provide organs … with air under all variable quantities required, and also to regulate that supply automatically so that the air reservoir is kept full under all conditions of the working or playing of the said organ." Source: Information taken from the text of a United States patent.
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