By A Mystery Man Writer
This complex mechanism operates a long-pendulum, or grandfather, clock. The dropping of the weight causes the gear drum to rotate. Swings of the pendulum release teeth in the escapement.
Machines, Free Full-Text
Grandfather Wall Clock Pendulum Swinging Unit Movement Repair
Daniel Quare, Barometer Maker, Clockmaker, Inventor
1945 Master Clock Print, Pendulum Clock Mechanism, Synchronized
History of time - PowerPoint presentations for kids
Pendulum clock - Wikipedia
Movement Diagram of a Grandfather Clock Movement -The Clock Depot
Harrison's Marine Chronometer - World History Encyclopedia
clock - Kids, Britannica Kids
clock - Kids, Britannica Kids
Grandfather clock Facts for Kids
Clock - Wikipedia
Pendulum, Definition, Formula, & Types