August 22, 1905: Charles Eichhorn was granted a U.S. patent (No.797,725) for an “Amplifying Horn.” This patent was assigned to the Tea Tray Company, and featured the distinctive concave petals commonly associated with the company’s horns. When Edison began supplying large flower horns with its Phonographs in October 1907, they were manufactured to the specifications of this patent.
Acquisition
Accession
95.9.388
Lexicon
Nomenclature 4.0
Nomenclature Secondary Object Term
Horn, Funnel
Nomenclature Primary Object Term
Amplifier, Sound
Nomenclature Class
Acoustical T&E
Nomenclature Category
Category 05: Tools & Equipment for Science & Technology
