O
Ornaments
3 18 2 82 Bronze, Paris 1.70 5.33 1.37 99.60 Clock Bells, German 24.3 2.7 73 Clock Bells, Swiss 25 5 74.5 Clock Bells, French 1.44 26.56 72…
Oxidizing Silver
1. Place the silver or plated articles in a solution of liver of sulphur diluted with spirit of sal-ammoniac. They are then taken out…
Oiler
A fine steel wire, mounted in a wooden or bone handle and used for applying oil to the mechanism of a watch or clock. Fig. 244 in an oiler…
Oil Sink
The depression around the pivot holes for the purpose of furnishing a supply of oil and also retaining it at the pivots. When the oil sink…
Oilstone
A hard, gritty stone upon which oil is used for sharpening tools. The Arkansas and Washita stones are the two principal American grades…
Oscillating Pendulum
A pendulum that moves backward and forward whose lower extremity traces an arc. This term is used to distinguish an ordinary pendulum…
On Portable Watches – Overcoil
Godfrey William de Leibnitz, Phil. Trans., London, 1675. A new invention of a Clock descending on an Inclined Plane. M. de Gennes, E J…