Clock identification

[SteveB]

Hello.
I have been restoring / conserving clocks for about 10 years now.
I have an Anniversary clock that needs a suspension spring, but it does not have any significant markings except "Made in Germany" under the ceramic dial, and more importantly, has 116/1294 scratched under the brass base.
I have attached two pictures.
I would like to know something about the clock and especially what suspension spring to use.
I had a friend give me a suspension spring (0.033") to try and it is quite a bit fast and cannot be regulated.
I assume that it requires a thicker spring.
Thanks in advance for any assistance.

Regards,

Steve

[SteveB]

Hello.
I should also have mentioned that this is my first 400 day clock, and that the suspension spring I have tried is 0.0033".
Thanks for any assistance.

Regards,

Steve

[jeules0]

Hi, I've looked in the Horolovar 400 day Repair guide for you, and as far as I can see your backplate matches a c1932 Kern & Link plate no 1667 which uses a 0.0036"/0.091mm spring. However, I believe I'm right in saying the thicker the spring, the faster it will go so not quite sure what to suggest assuming the 4 pendulum balls are at their outer limit?! The dial too is similar to Becker and other anniversary clocks of the late 20s/early 30s. Hope this helps but you may want to check my info as I am still learning about these clocks myself. Regards Chris

[SteveB]

(07-01-2009 04:17 AM)jeules0 Wrote:  Hi, I've looked in the Horolovar 400 day Repair guide for you, and as far as I can see your backplate matches a c1932 Kern & Link plate no 1667 which uses a 0.0036"/0.091mm spring. However, I believe I'm right in saying the thicker the spring, the faster it will go so not quite sure what to suggest assuming the 4 pendulum balls are at their outer limit?! The dial too is similar to Becker and other anniversary clocks of the late 20s/early 30s. Hope this helps but you may want to check my info as I am still learning about these clocks myself. Regards Chris

Thanks for the info Chris.
I think that I meant that the clock is running slow, and that a thicker spring will speed it up.
I have tried adjusting the pendulum balls to no avail.

Regards,

Steve

[mpassmore]

Hi, I think this document relates to the movement in your clock:
http://www.anniversaryclocks.org/aci/ksstd.pdf

I can't see from your photo if you have two screwholes at the bottom of the backplate or not. These are for the slightly later model that has a locking bracket to support the pendulum. This alters the unit used, but the wire should be the same, size 0.0036" Horolovar. If you are using a Horolovar 0.0033" then this will make the clock slow; too slow to be compensated by the adjuster.

Regards, Mervyn

[SteveB]

Thanks for the infomation Chris and Mervyn.
Mine is the earlier version without the screw holes for the bracket.
Regards,

Steve