Abstract: A time delay latch device of the arming assembly of a delay fuze which replaces the current system in support of the U.S. Navy Mine Clearing Program. The time delay mechanism is a mechanical run-away escapement having a one-half pound release force that unlatches an 800-pound load. The mechanical force reduction mechanism that makes up the latch device consists of 10 components rather than the existing 31 and a pyrotechnic time delay mechanism consisting of two components in lieu of the existing 14. Hence, the latch device taught herein provides not only the requisite delay and required latch release force but also reduces the total number of components from 44 to 12; thus creating significant cost savings in manufacturing. Time delay latch mechanism is located within the ram shaft that holds the ram shaft spring captive between the ram shafts and housing. The latching mechanism for the ram shaft comprises two ball detents located within the ram shaft and held in place by the housing.

Abstract: A water fillable chute, to be employed as a submerged tractor device is cected to a plurality of wire severing grapnels by means of a metallic chain for sweeping command type river mines.

Abstract: A surface minelaying system that can be built up of ganged modules and rapidly mounted on any ship whose displacement permits it to carry mines in some quantity. This minelaying system is a modularized overhead conveyor system that can securely store heavy mines and safely release them overboard at short, predetermined intervals, even in high sea states. The system comprises a frame member, with first and second ends, that defines the longitudinal axis of the minelaying system. The frame member is preferably made up of a rail track braced by periodically spaced vertical and transverse connecting members. Mounting supports are provided for mounting the frame member to the ship. A drive roller and an idler roller are disposed in the first and second ends of the frame member; and an endless drive member is looped about the rollers. A drive means is operatively coupled to the drive roller.