The object of my invention is to construct the bells of brass wind musical instruments with curved axes and by attaching these curved bells to the bell-tubes of the instruments by means of curved sleeves, to provide a bell-front instrument having a much larger field of adjustment than heretofore.The application was filed on February 13, 1908 (although not approved until August 17, 1909), and included the following diagram:
|Image, along with entire patent info, available online here|
Three weeks later, the journal further reported on "The Wonderful 'Wonderphone'" (MTR, February 22, 1908, vol. 46, no. 8, p. 40), and five months later, published this full page feature (MTR, July 11, 1908, vol. 47, no. 2, p. 37):
|Image courtesy of The Music Trade Review online|
That name, or something close to it (e.g. "Wonderphone Helicon") seems to have remained until 1918, when the bell-forward horn began to be referred to exclusively as "The Sousaphone Grand" (see C. G. Conn's Musical Truth, May 1918, vol. 10, no. 22).
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