water-meter

At the end of the period this routine is varied only in that the water-current is deflected from the water-meter into a small can holding about 4 liters, into which the water flows while the meter is being weighed.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

The physical observer takes the temperatures of the wall and air by the electric-resistance thermometers, reads the mercury thermometers, records the rectal thermometer, and at the exact moment of beginning the experiment the current of water which has previously been running into the drain is deflected into the water-meter.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

The voltmeter and mil-ammeter were read every few minutes, the water collected in the water-meter, carefully weighed, and the temperature differences as measured on the two mercury thermometers were recorded every 4 minutes.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

The water is then conducted through a pipe beneath the floor to the calorimeter chamber, passed through the absorbers, and is finally measured in the water-meter.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

At the end of the period, while the water is running into the small can, the water-meter is again carefully weighed and the weight recorded.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

Meanwhile the main valve at the bottom of the water-meter is opened, such water as has accumulated from tests in preceding experiments is allowed to run out, and the valve is closed after the can is empty.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

At the left of the observer's platform is a platform scale supporting the water-meter, with plug valve and handle conveniently placed for emptying the meter.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

All weights on the water-meter, both of the empty can and the can at the end of each period, are checked by two observers.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

He had caught sight of an old water-meter that had been used as an exhibit in a case he had once tried against the city in behalf of an inventor, who had been led to believe that the water board would adopt his patent and compel every householder to buy one for the registration of water consumed.

The Booming of Acre Hill And Other Reminiscences of Urban and Suburban Life John Kendrick Bangs 1892

On the other hand, the Siemens water-meter, which he introduced in 1851, has been very widely used, not only in this country, but abroad.

Heroes of the Telegraph John Munro 1889