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Examining the Escapement (Before taking the watch apart)
Before taking the watch apart, the several actions should be examined and any fault noted. See that the balance is true, both in the round…
English Silver Soap
This mixture, which is used for polishing silverware, is prepared as follows: Dissolve 2 parts of castile soap in 2 parts of soft water…
English Silver Paste
Three parts of perfumed vaseline, 5 parts of whiting, I part of burnt hartshorn, and one of pulverized cuttle bone. Stir well and put up in…
Electric Clock
A clock operated by a weight or spring and having a pendulum, which is controlled by electrical currents transmitted automatically by a…
Equation Clock
A clock invented about the end of the seventeenth century, which contained a device for partially rotating the dial, so as to make the…
Examining the Escapement (Examination of this escapement)
In the examination of this escapement it must be remembered that it is as necessary that it be put in good condition and the same care be…
Emery Countersinks
See Countersinks. Emery Files, Pencils and Sticks. Emery files are to be had ready made from all material dealers and consist of wooden…
Emery Wheels
Wheels of solid emery or wooden wheels, to the surface of which emery paste has been applied. The best wheels for watchmakers' use are the…
End Stone
The small stone disc on which a watch pivot rests, applied principally to escapement and balance pivots. Jewels with end stones are known…
Engraving Blocks
A mechanical device for holding coins, jewelry, silverware, etc., while engraving. Fig. 127 is the usual form given to engraving blocks and…
Epicycloid
A curve generated by a point in the circumference of a movable circle, as it rolls upon another circle. The teeth of driving wheels are…
Escapement
The mechanical device in a watch or clock by which the motion of the train is controlled so that the power may be distributed uniformly…
Escaping Arc
The angle included in the oscillation of a pendulum or lever from the time one tooth of the escape wheel passes from one pallet to the next.
Eye Glass
Eye glasses for watchmaker's use are mounted in many different styles. Some have horn, others have vulcanite and still others cork…
Etudes Chronometriques
Pierre Le Roy, Paris, 1764. Account of the Proceedings in order to the Discovery of the Longitude at Sea, subsequent to those published in…
Equidistant Vs
CIRCULAR. At this stage we are able to weigh the circular against the equidistant pallet. In the beginning we had to explain the difference…
Escapement Error
The kind of escapement used also affects the time of vibration; for instance, it is found that, while with the recoil escapement increased…
Engravers' Cement – Escape Pinion
Resin, 1 part; brick dust, 1 part; mix with heat. A clock which drives an equatorial telescope.