leavingthe lip of the cylinder just as the tooth parted with it. The half The Cylinder Escapement. 125 shell of the cylinder as shown occupies 196 degrees or the largerarc embraced between the radial lines k and /. In drawing theentrance lip the acting face is made almost identical with a… … A little study of what would be required to get the best resultsafter making such a drawing will aid the pupil in arriving at thepeoper shape, especially when he remembers that the thickness ofthe cylinder shell of a twelve-line watch is only about five one-thousandths of an inch. But because the…
Clocks and watches
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