'Improvements in the object of the principal patent No. 467,628, by:. Improvements in the control unit for water passage plates with spray'.

摘要

The regulator according to the Parent Description comprises a stationary valve controlling the passage between a top tank and the lower evapn. chamber. To increase efficiency, a sealing spindle with its lower end acting on the valve, is controlled by a top spring. - The top of the spindle is made integral with a sleeve, which terminates at the top inside a control button assembly.