American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 203
besides, it is inferior in the pointof solidity and durability. In all v/atches, inthose of careful make as well as in those oflower class work, the barrel arbor ought tobe supported at both ends by solid bearings ;in the former for the sake of greater solidity,and in the latter, also, for that of… … the uuirel unuge, and is neid in its pi&uc oya cap with three or four screws. These screws,having hardly more than three or four threads AMERICAN HOEOLOGICAL JOURNAL. 195 in the substance of the bridge, are the onlymeans of securing the stability of the recep-tacle of the moving power in the…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
