Heating and ventilating buildings : a manual for heating engineers and architects . en in good order will operatewithout attention, but the ordinary steam-pump needs to bestarted and stopped, as required, to remove the water. Torender the pump automatic a device termed a pump-governoris often employed. Many forms are used, but they con-sist in nearly every case of a tank containing a float or equiv-alent device, connecting with levers to the valve which admits steam for operating the tank is connected tothe suction and located abovethe pump. When the tank isfull of water, the steam-pu
Heating and ventilating buildings : a manual for heating engineers and architects . en in good order will operatewithout attention, but the ordinary steam-pump needs to bestarted and stopped, as required, to remove the water. Torender the pump automatic a device termed a pump-governoris often employed. Many forms are used, but they con-sist in nearly every case of a tank containing a float or equiv-alent device, connecting with levers to the valve which admits steam for operating the tank is connected tothe suction and located abovethe pump. When the tank isfull of water, the steam-pumpis put in operation by therising of the float, which opensthe steam-valve. When thetank is empty, the float falls,closing the steam-valve andthus stopping the pump. A pump governor consist-ing of a float-trap with outside connections to a steam-valve, asdescribed by F. Barron,* is shown in Fig. 200. A steam-pump with attached governor is shown partly insection Fig. 201. In this case the float is of the bucket form,the valve for supplying steam to the pump is flat with a single. Fig. 200 —Pump-governor withOutside Levers. * Heating and Ventilation, March, 1894. EXHAUST AND VACUUM STEAM-HEATING SYSTEMS. 299 port, and is connected by an internal lever to the bucket insuch a manner that when the tank is filled the valve will beopened and the pump will operate, and when the tank isempty the valve will be closed, and the pump will stop. The pump-governors are frequently set some little distance
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