The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ngth is all important; thata good length of spring for one variety of escapement is entirely unfittedfor another variety. Saunier says that the discussion of the questionwhether short springs are preferable to long ones is a mere waste of time and can result in nogood. In horology every-thing must be be the escape-ment under considera-tion, it requires neithera long nor a short hair-spring, but one that issuited to its nature andmode of action, that is tosay, the lengMi
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ngth is all important; thata good length of spring for one variety of escapement is entirely unfittedfor another variety. Saunier says that the discussion of the questionwhether short springs are preferable to long ones is a mere waste of time and can result in nogood. In horology every-thing must be be the escape-ment under considera-tion, it requires neithera long nor a short hair-spring, but one that issuited to its nature andmode of action, that is tosay, the lengMi must beara definite relation to theextent of the arcs ofvibration, etc. Owing to the conflictof opinion it is advisablethat the student read thevarious arguments setforth in the works re-ferred to above and formhis own conclusions. f I 111 IBP^^y mP:im. # Jjll o • ^ l^^P ADJUSTMENT ^ HEATER. The Simp- son heater, shown inFig. 2, will be foundinvaluable when adjust-ing movements to temperature. The variation of temperature in thisheater ic one and one-half degrees in twenty-four hours. It is designed. Fig. 2. 13 Alarm.
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
