I had wondered for a while if it would be possible to regulate a wooden clock with a Balance wheel and spring instead of using a Pendulum. I'm not at all sure that it actually offers any advantage other than being far more compact, and that, of course, is where the original designs for this type of regulation originated.
The Lever escapement invented by Thomas Mudge in 1750, has been used in the vast majority of watches since the 19th century, despite its popularity it does have some drawbacks, the main one being that there are several points where friction occurs, so the incorporation of a gravity escapement could help overcome that when used in a wall mounted wooden clock.
Now I can start to look at a complete clock design using this concept to ensure that it would actually work in practice.
The action of the escapement is a little difficult to understand just from the video, but the following notes should hep.
Position 1: The balance wheel has reached its furthest Clockwise position, The Gravity arm has been pushed back by the Impulse Finger and so allowed the Lifting Lever to be released and dropped down to its stop position ready to engage the next Lifting finger when the movement is reversed.
Position 6 - The Balance wheel is now free to move back Clockwise again and has nothing else to do until the Impulse Finger reaches the impulse pin to start the cycle over again.