Ajutage
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
or ADJUTAGE. A conical tube used in drawing water through an aperture, by the use of which the quantity of water drawn is much increased. When a privilege to draw water from a canal, through the forebay or tunnel, by means of an aperture, has been granted, it is not lawful to add an ajutage, unless such was the intention of the parties.
2 Whart. (Pa.) 477.