Title: Photo-electric organ with chiff

Abstract: An electrical organ in which each of the keys of the organ is mechanically coupled to one single pole single throw electrical switch, and a plurality of said switches are each connected to a plurality of photoelectric tone sources through pulse shaping keying circuits, the keying circuits connected to each key switch being connected in a cascade circuit with the direct current potential source and the photocell of one of the tone sources, the other tone sources having photocells connected to the junctions of keying circuits in said cascade circuit. The tone circuits actuated by a given key of the organ may be at the same frequency or may comprise a chiff tone component or a noise-puff component, or may include a special decay circuit which activates a photocell modulated at a different pitch from the main-tone component.

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Inventors: Jones, Edward M. (Cincinnati, OH, US)
Wayne, Jr., William C. (South Fort Mitchell, KY, US)

Application Number: 461694
Filing Date: 1974-04-17
Publication_date: 1976-01-06
Assignee: D. H. Baldwin Company (Cincinnati, OH)
Primary Class(es): 84/632 84/627, 84/639, 84/DIG5, 84/DIG19, 984/309, 984/324, 984/328, 984/358, 984/DIG1
Other Classes:
US Patent Ref:

2486208	Oct, 1949	Rienstra	84/1.
2989886	Jun, 1961	Markowitz	84/DIG.
2989887	Jun, 1961	Markowitz	84/1.
3037413	Jun, 1962	Markowitz	84/1.
3180919	Apr, 1965	Stiefel	84/1.
3247306	Apr, 1966	Milho	84/1.
3333042	Jul, 1967	Brombaugh	84/1.
3391240	Jul, 1968	Uetrecht	84/1.
3445578	May, 1969	Cunningham	84/DIG.
3562400	Feb, 1971	Cutler	84/1.
3617603	Nov, 1971	Wayne et al.	84/1.
3660587	May, 1972	Martin	84/1.
3735014	May, 1973	Turner	84/1.
3855893	Dec, 1974	Chase	84/1.

Other Refs:
Primary Examiner: Hartary, Joseph W.
Assistant Examiner: Witkowski, Stanley J.
Attorney: Burmeister, York, Palmatier, Hamby & Jones