C 78 ] 
This return together with the crutch-pin, if the pen- 
dulum were removed, would fall down as repre- 
sented by the dotted lines f g. The defign of this 
mechanifm is that any fridtion at the crutch- pm, 
which in the common conttrudtion is a fmall 
hiding up and down at every ofcillation, is hereby 
converted into a fmaller circular motion in a fmooth 
pivot-hole. Both thefe, I underhand, are contri- 
vances of the late Mr. Henry Hindley of York : and 
may be feen in the regulator at Mr. Holmes’s in the 
Strand, which is conttrudted in the fame manner. 
The cock is fattened to the back-plate of the clock 
itfelf; but the clock-cafe is made ttronger than ufual, 
and is firmly fcrewed to the wall, independent on the 
floor. 
XII. A 
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