The watch; its construction, its merits and defects, how to choose it, and how to use it (1860)
Piaget, Henry F · New York, Printed by C. Vinten for the author · leaf 22
directionin which the balance will turn, was to have one of itsends fastened to a point independent of the balance, whilethe other end was attached near to its axis, an impulsethen given to the balance would only cause it to moveas far as the force given was able to overcome the re-sistance of the…
Clocks and watches
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
