throttling bar

throttling bar

[′thräd·əl·iŋ ‚bär]
(ordnance)
A wedge-shaped bar attached to the interior wall of a recoil cyclinder of a gun; a rectangular notch in the recoil piston moves over the bar, forming an aperture through which the recoil oil must flow; the aperture decreases during recoil until at the end of recoil it is completely closed, thus stopping the flow of liquid and bringing the recoiling tube to rest.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Although the corresponding throttling bar diameters under different recoil displacement are different, throttling bar diameter remains constant.