Escapement

In our last episode your local horologist was confounded by the "seconds" dial of the Vienna single-weight Regulator . Some of the answer to this conundrum lay in the history of the manufacture of these clocks.  The very earliest models of what became this classic style were created in about 1780 in Vienna. They were hand made by individual clockmakers and often of amazingly high quality. The style grew in popularity, over time evolving into several distinct variants matching the tastes of the times.  Of those of you familiar with Viennas the first image you might have when thinking of a one might be something more... ornate than our example.  Perhaps something like one these: Our Vienna is a bit more... modest in design. Again a photo as it was found on the wall when YLH first saw it. In that regard the observant reader / follower of this blog (thank you) might have noticed this tidbit from YLH's first posting about this clock, noted in its earlier owner's receipt ....

This says 60 right? 15, 30, 45... Sure looks like a 60 to your local horologist. Ahem. We'll come back to this. In our last episode YLH was enjoying the colorful history of the Vienna Regulator clock . More specifically a romp through the evolution of escapements ensued with this horology history hound landing on the engineering and whimsical details of the variation found in our single weight example,  the Vulliamy deadbeat . That escapement, and many other parts of this clock, are what many a horologist would characterize as high quality and well-built clock components. This became more apparent as the clock was disassembled for close inspection and cleaning. For example, here is the click and its spring on the main wheel. Really nice construction. And flipping that main wheel over YLH noticed what looked like another kind of spring on the back that he'd not recognized / noticed before.  A bit of research revealed that this was a secondary spring that keeps tension on the ...