from The Century Dictionary.
- noun In mining, a wooden pipe to carry off water while putting the watertight casing to a shaft.
Sorry, no etymologies found.
The plug, with a canvas cistern, is the easiest mode of obtaining water; the plug-box being only the size of a paving-stone, is no annoyance in the street, and the water has only one angle to turn before it is delivered.
When both these plugs were allowed to flow freely without hose, the water from that nearest the large main, rose about 18 inches, and the farther one about 1 inch above the plug-box.