American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 277
sely the shape shown at C. Thismay be easily done by filing it first with theedge of a thin file, and then putting it on itsplace and broaching it out with a small broach.The brass being softer than the steel cuts first, and a recess for the pin that will wear well iseasily formed. In making a… … passes through the hole in the centre of mo-tion of the click, and screws into the maintain-ing power ratchet. It is much safer, however,to make the screw so that it will go tight intothe hole in the wheel with its head on the op-posite side of the wheel from the click, and tapa thread in the hole…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
