Leslie and others,  I looked up the patent description.  I don't think
the wheel of the Dulciphone is supposed to line up with the sewing
machine flywheel.  If the Dulci wheel is metal, it would make noise
against the sewing machine flywheel.  It looks to me that the Dulci
wheel sets on top of the sewing machine pulley, riding on top of the
belt as a friction drive.  Take a closer look.

http://www.google.com/patents?id=XhdwAAAAEBAJ&dq=267874
  Combined Sewing-Machine and Musical Instrument
  Patent number: 267874
  Filing date: Jun 17, 1882
  Issue date: Nov 21, 1882
  Inventor: George D. Garvie and George Wood, New York City

This patent combines a sewing machine in a pump organ case:
http://www.google.com/patents?id=r1RHAAAAEBAJ&dq=338740
  Combined Organ and Sewing-Machine
  Patent number: 338740
  Issue date: Mar 30, 1886
  Inventor: J. R. Hessler, Chicago

Russ Doering

 [ I asked the Dulciphone owners if their instruments resemble the
 [ patent description close enough that they would have been built
 [ under license of the Garvie & Wood patent.
 [
 [ Kevin McElhone answered:
 [   Mine looks nothing like this patent.  It is not a high cover,
 [   merely an organette which would have a flywheel powered by the
 [   sewing machine so it would fit _any_ sewing machine.  In mine the
 [   exhausters go up and down vertically rather than horizontally like
 [   the Garvie & Wood patent.  They are in the bottom of the instrument
 [   which has a height of only around 5 or 6 inches.  This the first
 [   time I have seen the patent; none of the Yahoo groups ever allow me
 [   in to view items (Aeolian or Organette) so I have given up on them.
 [   MMD is easy to access.
 [
 [ Leslie Hoffman replied:
 [   Hi Robbie,  Our machines were invented by Garvie & Wood but they are
 [   different from the patent we found.  They must have made two types
 [   but I cannot find the patent for the one that most of us own.
 [
 [ I'll place the Dulciphone images Leslie sent at the MMD Picture Gallery,
 [ see http://mmd.foxtail.com/Pictures/index.html
 [
 [ -- Robbie