Clock and watch escapements:  a complete study in theory and practice of the lever, cylinder and chronometer escapements, together with a brief account of the origin and evolution of the escapement in horology. 

 - 179 pages :  illustrations ;  22 cm 
<br/><br/> "Originally published by The Keystone Philadelphia. Original copyright 1904 by B. Thorpe"--Title page verso.  Includes index. 
<br/><br/>The detached lever escapement -- The cylinder escapement -- The chronometer escapement -- History of escapements -- Putting in a new cylinder. 
<br/><br/><label>ISBN: </label>1559181907 9781559181907 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clocks and watches--Escapements.<br/>Clocks and watches--Escapements.
<br/><br/><label>Subjects--Index Terms: </label>Escapment science United Kingdom Facsimile escapement Keystone Timekeeper (general)