Good single-acting engine 3 to 6 per indicated horse-power per hour.
An indicated horse-power can be obtained in a compound engine from 20 lbs. of steam per hour.
A good boiler evaporates 9 to 10 lbs. of water per lb. of coal.
From 21 to 28 cubic feet of gas are required in a gas-engine per indicated horse-power per hour.
Incandescent Lamps.
In practice allow 9-60 watt 16 CP. lamps per indicated horse-power of engine.
Mem. for Wire Running.
Leads to the left or “low,” “light coloured.”
Returns to the right or “raised,” “red.”
English and French Measures.