Ships – Towing or pushing – Towing by means of cable
Patent
1993-08-18
1995-02-07
Brown, David
Ships
Towing or pushing
Towing by means of cable
89 114, 254407, B63B 2104
Patent
active
053867939
ABSTRACT:
A mine countermeasure device includes a passthrough mechanism and a mine neutralization package. The passthrough mechanism includes a first wheel with a raised rim and at least one radially oriented slot or notch, a clevis member rotatably engaging the axle of the first wheel, and a bail member slidably engaging the underside of the rim. A smaller wheel is pivotably connected at its axle to an angled member extending from the neutralization package. The neutralization package also includes a collapsed float, a gas generator to inflate the float, explosives to neutralize a mine, and an electric detonator for the explosives. The passthrough device is towed underwater by a sweep wire connected to the clevis member and to the bail member. When the sweep wire encounters a mine mooring, the sweep wire is pulled along the mooring until the mooring enters a slot of the first wheel. Continued forward motion of the sweep wire causes the first wheel to rotate, passing the wire between the clevis member and the bail member until the smaller wheel is reached. A radially oriented slot or notch of the smaller wheel then moves onto the mooring. The smaller wheel then rotates with the mooring so that the mooring passes the passthrough device and the sweep wire. The neutralization package and the smaller wheel are now disposed about the mine mooring. The mooring then engages the angled member, so that the neutralization package and the smaller wheel are pulled off the passthrough mechanism, activating a switch on the package. The switch triggers inflation of the float and enables subsequent detonation of the explosives. For other applications than mine countermeasures, the neutralization package can be replaced with other equipment to be provided to or about a line.
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Cowan, Jr. Will C.
Gaudiano Anthony V.
Brown David
Starr Mark T.
Unisys Corporation
Weinstein Stanton D.
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