DUTY AND MEASUREMENT OF WATER. 



159 



balances the float, keeping the cord tight. As the 

 water rises and falls the float rises and falls with it. 

 This fluc5luation causes the cord to revolve the grooved 

 pulley over which it passes ; the small pinion being 

 fixed on the same shaft as the pulley revolves with it, 

 communicating its motion to the segmental gear, which 



FIG. 44 — WATER REGISTER. 



being attached to the same shaft as the pen, both will 

 revolve together ; and the pen, being in contac5l with 

 the dial, will trace a mark upon it, leaving a graphical 

 record showing the days, hours and minutes in one 

 dire(5lion, and feet and inches in another. 



The Stokes Measuring Gate. — This is a newly 

 patented device by Mr. Stokes, of Montrose county, 

 Colorado, and is a really useful contrivance for deter- 

 mining just how much water a consumer is receiving 



