US PATENT SUBCLASS 89 / 162
.~.~ Rearwardly movable


Current as of: June, 1999
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89 /   HD   ORDNANCE

125  DF  AUTOMATIC {14}
160  DF  .~ Movable barrel (e.g., rotary) {4}
162.~.~ Rearwardly movable {10}
163  DF  .~.~.~> Barrel having motion in addition to axial, rectilinear
164  DF  .~.~.~> With breech lock latch
165  DF  .~.~.~> Long recoil {3}
169  DF  .~.~.~> With accelerator and/or unlocking lever for breech mechanism
170  DF  .~.~.~> With barrel latch
171  DF  .~.~.~> Nonrectilinear breech block motion (e.g., tilting rotary) {1}
173  DF  .~.~.~> Sliding locking member
174  DF  .~.~.~> Rotary locking member
175  DF  .~.~.~> Toggle locking member
176  DF  .~.~.~> Pivoted locking member


DEFINITION

Classification: 89/162

(under subclass 160) Guns wherein the barrel recoils rearwardly relative to the stock or other mount.

(1) Note. The breech block is usually locked to the barrel when the shot is fired, and is unlocked by the movement of the barrel on recoil. The locking member may be mounted on either the breech block or the barrel.

(2) Note. Usually the barrel has axial, rectilinear motion.

(3) Note. In this and indented subclasses the motion of the breech block considered is that relative to the barrel to open the breech for reloading.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4.05+, for explosion-opened breech guns with recoiling barrels. 155, and 156, for guns in which the chamber only is movable.

157, for recoiling barrels with revolving chambers.

SEE OR SEARCH CLASS

42, Firearms,

75.01+, for barrel mounts for recoiling barrels.