The Talking Machine Patent Archive

Patents you could hear

Valvular action

Patent drawing showing four figures of a mechanical reed and pipe organ mechanism, including a wind-chest with a perforated paper roll traveling over an action-board with air passages leading to reeds and pipes, plus a plan view of the roll compartment with hinged lid and screws.IMPROVEMENT IN MECHANICAL MUSICAL INSTRUMENTS.Elias P. Needham · March 18, 1879