er of the recording mechanism removed, showing have been applied to many purposes more or less useful ducing the curve. the inside of the cylinder and valve chamber with the pis- both in and outside the bounds of photography; but so far Messrs. George M. Fay and Nahum Fay, of Eureka, Cal., ton and… … the groove to secure the mandrel in place exit opening, which is exactly opposite the in any piece of work. inlet opening. A simple saw-filing machine that is The recording mechanism is operated R readily adjustable for any desired rake, by a double cam, F, projecting from the bevel, and depth of…
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