Another Urgos 9-Tube 03071 This Time

[ms171892]

I got this clock from e-bay and boy, was it a mess. Someone had epoxied brass plates under the winding arbors in an effort to adjust them instead of bushing, etc, etc.

Anyway, I made bushings for all of the winding arbors and bushed 5 pivot holes. Cleaned and re-assembled and it's running.

I have a 33 1/2" pendulum with a 10" bob on this clock, and it's running on 6 1/2 lbs of weight. I have not re-assembled the chime train yet.

According to specs, I believe this clock is a 100cm and 3870 bph. It's running at 4002 with the pendulum lowered as far as it will go.

Must I get a longer pendulum for this? A 100cm is about 39 1/2" and with the 6" leader, I thought I should be there.

Any thoughts and / or suggestions would be greatly appreciated.

Thks and Best Regards

 

[ms171892]

I got this clock from e-bay and boy, was it a mess. Someone had epoxied brass plates under the winding arbors in an effort to adjust them instead of bushing, etc, etc.

Anyway, I made bushings for all of the winding arbors and bushed 5 pivot holes. Cleaned and re-assembled and it's running.

I have a 33 1/2" pendulum with a 10" bob on this clock, and it's running on 6 1/2 lbs of weight. I have not re-assembled the chime train yet.

According to specs, I believe this clock is a 100cm and 3870 bph. It's running at 4002 with the pendulum lowered as far as it will go.

Must I get a longer pendulum for this? A 100cm is about 39 1/2" and with the 6" leader, I thought I should be there.

Any thoughts and / or suggestions would be greatly appreciated.

Thks and Best Regards

 

[MARK A. BUTTERWORTH]

The 3870 bph is correct. The 100 cm mark is a theortical figure and is measured from suspension post to rating nut; most "real" pendulums tend to be somewhat longer by a couple of inches. From memory, I would say add about 2". I would start with a loop of baling wire to extend the pendulum and then once you decide what is needed you can make a more permanent extender.
Note that if the swing of the pendulum is negligible, the clock tends to speed up somewhat also. The specs call for 7.75 lb on the time and strike btw.