ter separation the dust is used hole must be drilled, after which the disk is turned to a true of 18 inches. Then these are cut automatically to the in that state for diamond saws only; but, for polishing, it is diameter. It is then forced into a recess of a low brass cap- right lengths, roughed… … separated, cleaned by acid, and blued. After the leaves have been cut, the pin- The spring is now attached to a brass collet ions are hardened and tempered, polished THE AMERICAN WATCH CO.—MAKING ESCAPEMENTS. in the center, and to a steel stud at the and finished ready for use. Seven barrels of…
Patents · Patented · Steel · Air · Scientific American · Valve · Novel construction · Hot air · American watch · White lead · Compressed air · Water closet · Hair spring · Gutta percha · Horse power
Internet Archive · Public domain (published before 1931). Free to use for anything.
