Mark Frank | Louis Thouverez, c. 1790, Paris France, Pendulum study. @MarkFrankclocks | Uploaded 2 years ago | Updated May 12 2024
This clock's pendulum has an interesting feature located on the rear of the bob. There is a compartment that can be filled with lead shot to alter the mass of the the bob. What is interesting is that the compartment is quite small and the mass of the lead shot it holds is small compared to the overall mass of the bob. Theoretically this method should not be able to have any effect on the operation of the pendulum, excepting is making a very slight change in the center of gravity, something that the knurl nut at the base of the pendulum should take care of. The entire clock can be seen here: http://www.my-time-machines.net/Thouverez_1.htm .
This clock's pendulum has an interesting feature located on the rear of the bob. There is a compartment that can be filled with lead shot to alter the mass of the the bob. What is interesting is that the compartment is quite small and the mass of the lead shot it holds is small compared to the overall mass of the bob. Theoretically this method should not be able to have any effect on the operation of the pendulum, excepting is making a very slight change in the center of gravity, something that the knurl nut at the base of the pendulum should take care of. The entire clock can be seen here: http://www.my-time-machines.net/Thouverez_1.htm .