recoil escapement

Scholars including Morrison H. Heckscher, chairman of the American Wing at the Metropolitan Museum of Art, provided the text, describing clockworks in geek-fests of arcane phrases like “rack-and-snail hour strike” and “anchor recoil escapement.”

Very shortly afterwards R. Hooke invented the anchor or recoil escapement.

The recoil escapement does so; for it is almost invariably found that whatever may be the shape of these pallets, the clock loses as the arc of the pendulum falls off, and vice versa.

It will be observed that the teeth of the scape-wheel have their points set the opposite way Dead escapements. to those of the recoil escapement.

But instead of the pallet having a continuous face as in the recoil escapement, it is divided into two, of which BE on the right pallet, and FA on the left, are called the impulse faces, and BD, FG, the dead faces.