| 摘要 |
A feature of this invention is the provision of a Gatling type gun having the minimum, yet adequate, longitudinal clearance between the locking lugs of the rotor and the locking lugs of the gun bolts, by having the helical main cam track of the gun which reciprocates the gun bolts between forward dwell and aft dwell during each gun cycle also provide a subcycle of reciprocation of each gun bolt while it is in front dwell. This subcycle provides adequate clearance of the lugs of the rotor and the gun bolts to permit free rotation of the bolt into and out of lock, while providing no clearance during actual firing.
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