have a great advantage in the Toronto
Technical School, but we are sorry to see that out of some 600 students,
only five watchmakers attended last year. We can account for the
majority of them, so it would seem as if the young men of the trade were
not much interested, or thought they could not apply the knowledge to be
gained there. This is a great mistake; we might almost say that
knowledge of any kind can be applied to horology. The young men who take
up these studies, will see the great advantage of them later on; one
workman will labor intelligently and the other do blind "guess" work.
We are now about to enter upon our subject and deem it well to say, we
have endeavored to make it as plain as possible. It is a deep subject
and is difficult to treat lightly; we will treat it in our own way,
paying special attention to all these points which bothered us during
the many years of painstaking study which we gave to the subject. We
especially endeavor to point out how theory can be applied to practice;
while we cannot expect that everyone will understand the subject without
study, we think we have made it comparatively easy of comprehension.
We will give our method of drafting the escapement, which happens in
some respects to differ from others. We believe in making a drawing
which we can reproduce in a watch.
AN ANALYSIS OF THE LEVER ESCAPEMENT.
The lever escapement is derived from Graham's dead-beat escapement for
clocks. Thomas Mudge was the first horologist who successfully applied
it to watches in the detached form, about 1750. The locking faces of the
pallets were arcs of circles struck from the pallet centers. Many
improvements were made upon it until to-day it is the best form of
escapement for a general purpose watch, and when made on mechanical
principles is capable of producing first rate results.
Our object will be to explain the whys and wherefores of this
escapement, and we will at once begin with the number of teeth in the
escape wheel. It is not obligatory in the lever, as in the verge, to
have an uneven number of teeth in the wheel. While nearly all have 15
teeth, we might make them of 14 or 16; occasionally we find some in
complicated watches of 12 teeth, and in old English watches, of 30,
which is a clumsy arrangement, and if the pallets embrace only three
teeth in the latter, the pallet center cannot be pitched on a tangent.
Although advisable from a timing standpoint that the tee
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