Old clocks and watches & their makers : being an historical and descriptive account of the different styles of clocks and watches of the past, in England and abroad, to which is added a list of nearly twelve thousand makers (1922)
Britten, F. J. (Frederick James), 1843-1913, Britten, Annie · London : E. & F. N. Spon · leaf 96
the engraving withthe following explanation. Fixed to the mainspring arbor above the top plate is a pinionhaving eight leaves. This gears with a wheel having twenty-fourteeth, wliich do not quite fill out the circumference of the wheel, butleave a block of two spaces in width which acts as a stop… … Fig. 79. Fig. 80. Watch movements with Stackfreed. remainder. There is a groove in the concentric portion of the edge,into which is pressed a roller which is pivoted at the free end of a strongcurved spring. When the mainspring is fully wound the roller restsin the curved depression of the cam, and…
Clocks and watches · Clock and watch makers
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
