Metal work
Bushing is both a relatively simple but also a highly precise process for repairing worn pivot holes on clock plates. As noted in our last episode , when clock wheel pivots wear the brass pivot holes of the clock plate off of their manufactured round, the resulting channel dug into the brass can create enough friction to slow and ultimately damage or stop a clock. The pivot hole must be restored to the proper diameter and exact original location of the originally manufactured pivot hole. Once again here is our worn pivot hole. The pivot dug into the brass to the right so the left side of that hole is effectively as original. You can see that the left side looks well centered to its original design but the right side is creeping to the edge of the cupped area that surrounds the pivot hole. That cup is an oil sink that facilitates oiling the pivot hole. Worn pivot holes are extremely common in older clocks and can go unnoticed for decades until the clock slows or stops. Because it i...