Between the gear wheels, p and g, is arranged a third, inexpensive, and efficient means of deadening sound m, which meshes into the two driving wheels, and is willbe a greatboon. Solid walls and solid floors trans- thus carried by them; being suspended by the teeth and mit sound in the highest… … columns are written in a popular manner. Tothe Inventor and Patentee it is invaluable as the only reliable and steady motion without the use of the heavy balance proportion to hight and record of the progress of invention, at home and abroad, and of the weekly issues of American Patents. No person…
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-33-38.webp)
