Rules and Practice for Adjusting Watches

Methods

tted up to maintain a temperature of about 90° Fahr. an

ly close results in the two extremes can be obtained, may be used. For instance, the watch may be enclosed in a tin box and placed in sand that is kept at a temperature of 90 or 95 degrees F. A thermometer placed in the sand indicates

tches, or they may be constructed to receive only half a dozen watches. Some are made with a zinc or copper tank in which warm water is placed and which surrounds the chamber in which the wat

thermostat controls

pped Oven, Descript

in the higher temperature is shown in Fig. 1. This is electrica

lumber and the inside is lined with asbestos. It is about f

escent lamp set i

ug through which the w

ith a thumbscrew on the top, unde

, one end of which is fasten

ests against the end of a thum

ture. As the temperature rises the free end of the bar moves away from the end of thumbscrew, breaking the circuit and extinguishing

wide and one thirty-second of an inch thick. On the outside of this soft solder a strip of tin six inches or a trifle less in length, by one fourth

g.

h at its free end, and near this free end it is necessary to solder a small

he holes can be opened or closed as desired for regulating the ventilation. "K". Is a shelf of brass scree

sed by a door made in two parts, the upper section of which is glass which will admit of obse

er Temper

d. It is constructed of wood and stands about twenty-four in

with about one inch of saw

zinc tank for holding cracked ice and about an inch of

falling on the watches which are to be placed on the floor or on a shelf of the chamber, but the sides may be left partly open to improve the circulation of cold air. The door may also b

g.

f the pipe should be covered with a fine screen to prevent dirt from accumulating in the pipe and the outlet may be either at the extreme bottom or on