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A humble Corniche - my first carriage clock. Something not quite right with the striking (gong). It strikes at 2 minutes before the hour and at 27 minutes past. Let's check it out. I sought the help of a Chapter 72 colleague to investigate.
Many have lost the bottom plate but this one, reported to be from Shreve, Crump and Low from Boston is complete. Hmmm! elastic bands - what are they for? I had expressed a concern about chipping the glasses during case dismantling. This secures the glasses
I am instructed to remove only the corner screws which hold the pillars. The movement would slop around undoing the middle ones! Hopefully they are not too tight. There is no reason to over tighten - ok in this case. This case needs cleaning so gloves are optional but good practice
Inspect each screw, keep track of which one went where. Why? Well because (as in this case) some may be replacements in retapped screw holes. Wow - how do these things happen? One is obviously longer
It is now easy to turn the clock upside down and withdraw the movement vertically The clock exposed
So here we have it. The clock ready for dismantling and the case safely intact Taking the hands off requires good vision and an eyegalss helps locate and withdraw the keeper pin.
The hands are off, ready for removing the dial. The pins securing the dial should have a slight overhang from the dial plate to make it easy to pull them with pliers. Again these should not be driven home hard.
Now to inspect the movement from the front and side. We found the lifting pins for the striking were both very bent- how?? Straightening them will gave to wait for another day, but how does the top glass come apart?
Make sure you don't try to remove the handle by twisting, remove the screws from underneath. Now it is easy to put the clock back into its case as the elastic bands keep it all in place
Just slip it in easily Insert the screws in the right holes, put the cover plate on and we are back were we started with the case glasses undamaged!