from The Century Dictionary and Cyclopedia
- n. A sliding gate which controls the opening in a sluiceway.
- n. A slide at the outlet of a main or dischargepipe, serving to regulate the flow.
- n. A straightway valve having a free through opening; a gate-valve.
Sorry, no etymologies found.
The result was my contrivance of a double-faced wedge-shaped sluice-valve, which combined the desirable property of perfect water-tightness with ease of opening and closing the valve.
This was effected by a screw which raised the valve from its bearings at the first partial turn of the screw, after which there was no further resistance or friction, except the trifling friction of the screw in its nut on the upper part of the sluice-valve.
"as if the sluice-valve of the water tank above had somehow or other jammed foul, so that the water couldn't be turned off for a while" -- this being Tom Jerrold's explanation of it.