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.
References in periodicals archive ?
Although the corresponding throttling bar diameters under different recoil displacement are different, throttling bar diameter remains constant.