| 
356 Scientific Proceedings, Royal Dublin Society 
Fig. 7. 
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TTT TTR Te TTT TT 
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ZILA 
(Of SHES) 
[| 
MUTT T PT Tiree TT 
c oe SSS ) 
A. Is a portion of one of the uniform motion clock spindles, or | 
any shaft coupled thereto. | 
B.B.B. Are the three wheels of an ordinary mitre remontoire train 
driving by weight W the scape-wheel ¢ into the teeth 
of which gear the pallets dd, which pallets are driven by 
the electric pendulum P. 
This electric pendulum is connected to, and driven by a cur- 
rent from any independent clock. 
To the weight carrying arm of the remontoire is attached a 
small chain or wire, which communicates any motion it 
may have to the lever L, from the other end of which | 
lever hangs a weight w, smaller than W, which weight is 
therefore raised when the remontoire arm is lowered, and 
lowered when the remontoire arm is raised. 
@} Is a dise of metal on a vertical spindle of uniform motion 
clock and revolving rapidly (say 300 per minute). 
When the weight w is below its mean position it is in con- 
tact with the disk Q, and (the lower end of it being 
coated with leather) produces a considerable amount of 
friction, and therefore tends to retard speed of clock, when 
the weight w is above its mean position it is altogether | 
out of contact with the dise Q. | 
