Object Details
- Description
- This incomplete device may be part of an audiophone invented by Richard S. Rhodes of River Park, Il., or of a dentiphone invented by Thomas W. Graydon of Cincinnati. The latter, made by the American Dentaphone Co., was described as “a new scientific invention, which enables the deaf to hear by the sound-vibrations conveyed through the medium of the teeth, and the deaf and dumb to hear and learn to speak.” Some advertisements boasted: “The Wonders of Science Applied to the Complete Relief of the Deaf.”
- Ref: Richard S. Rhodes, “Audiophone,” U.S. Patent 219,828 (Sept. 29, 1879).
- Thomas W. Graydon, “Dentaphone,” U.S. Patent 225,365 (March 9, 1880).
- Location
- Currently not on view
- Data Source
- National Museum of American History
- Measurements
- largest broken piece: 6 5/8 in x 8 11/16 in x 1/16 in; 16.8275 cm x 22.06625 cm x .15875 cm
- handle: 7 11/16 in x 6 1/2 in x 5/8 in; 19.52625 cm x 16.51 cm x 1.5875 cm
- Object Name
- acoustical fan
