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Description of new phonograph, or graphophone
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Description of the arrangement which gives the motion necessary to form a spiral line.
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Substances to be used as disks to receive the record, or phonogram.
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Engraving apparatus for forming the linear phonogram.
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[[centered]] Monday, Mar. 28-1881
base A. so as to slide to and fro across the base.
  Rigidly attached to the Slide B. are two
standards C.-D. which form supports for the horizontal axle E --
  Upon the central portion of his axle is cut a screw thread F - which meshes into the worm-wheel G - directly under it. The worm-wheel G is rigidly attached to the screw H which turns whenever the axle E.-is rotated.
  The object of the screw H - is to give a slow and uniform motion to the slide B., which is accomplished by the rotation of the screw through the nut - I - attached to the -- base A. 
Attached to the end of the axle E. is a large circular disk - K.[[strikethrough]] which is [[/strikethrough]]. upon which the speech vibrations are to be recorded. This disk can be made of some soft metal that can be easily engraved, as it can be made of some light substance, like hard rubber, ivory, celluloid, or box-wood.
  Mounted upon the base A. in front of the disk K. is an ordinary telephone [[strikethrough]] di [[/strikethrough]] or phonograph diaphragm, and mouthpiece L.- and the engraving tool [[underlined]] M [[/underlined]] - 
  The engraving tool [[underlined]] M [[/underlined]] is mounted on a vertical axis [[strikethrough]] [[underlined]] N [[/underlined]] - [[/strikethrough]] so that it has [[strikethrough]] a [[/strikethrough]] free motion in a horizontal plane ----

[[centered]] Noted by S.T. Mar. 28 & 29 - 1881.
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