Examples from the Web for escapement
Like De Vick's clock also Huygens's clock had its escapement wheel acting upon two pallets.Stories of Useful Inventions|Samuel Eagle Foreman
There is no escapement constructed where carefully-made drawings tend more to perfect knowledge of the action than the cylinder.
By designing, we mean giving full instructions for drawing an escapement of this kind to the best proportions.
In this escapement as delineated there is perfect tangential locking.
The pendulum had apparently no escapement and the puzzle was how it was maintained in motion.