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| U.S.N.B.D. - BRITISH LAND MINES AND FIRING DEVICES |
| A/Tk MINES & FUZES |
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DIAMETER |
7-1/2 in. |
BRITISH MINE |
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HEIGHT |
3-1/4 in. |
G.S. Mk II |
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TOTAL WEIGHT |
9-1/2 lbs. | |
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EXPLOSIVE WEIGHT |
4 lbs. | |
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EXPLOSIVE |
T.N.T. or Baratol |
(ANTI-TANK) |
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MATERIAL |
Steel | |
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COLOR |
Sides on top dark green; |
(OBSOLETE) |
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bottom yellow, with cross | |
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of red and green. | |
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FUZE |
Mine, contact, A/T, No. 1 | |
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Mk II. | |
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PRESSURE REQUIRED |
Approximately 350 lbs. |
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USE: |
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Defense against armored cars, tanks, or other vehicles. The mine will break tracks of light or medium tanks and disable other vehicles. |
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COMPONENTS: |
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The G.S. Mk II Mine has three main components: loaded body, cover, and fuze. The mine cover fits over the body and is kept clear of it by a leaf spring. Pins on the sides of the mine body engage bayonet sockets in the cover. The cover of this mine must never be removed after the mine is armed. Words to that effect are stamped on the cover of the mine. |
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(a) Mine Body: The mine body is cylindrical in shape. Passing through the center of the mine is a cavity for the insertion of the mine fuze. During ordinary shipping and storage, this cavity is closed by a shipping plug. A booster charge is a ring-shaped con-tainer is placed around this central cavity. The remainder of the mine is filled with the explosive main charge. The mine is fired when the weight of a vehicle overcomes the leaf spring under the cover and allows the cover to force down the top of the fuze. |
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(b) Fuze, Mine, Contact, A/T, No. 1 Mk II: This fuze operates on the ball-release principle and consists of a cylindrical body containing a striker mechanism, a brass safety sleeve, a percussion cap, and a detonator. Over the top end of this fuze is crim-ped a thin-walled brass sleeve. Four prongs on a brass safety is retained by two locking balls which are held engaged in a groove in the striker by the plunger. To the top of the plunger is fitted a pressure head. Pressure on the cover of the mine crushes the thin-walled brass sleeve and forces the pressure head and plunger downward. The four prongs on the brass safety sleeve release their grip, and the striker spring is compress-ed. The locking ball are forced outward into a recess in the plunger, and the striker fires the percussion cap which explodes the detonator. |
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ASSEMBLY & ARMING: |
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Place mine on its edge and unscrew the shipping plug from the center of the bottom of the mine body. Remove fuze from its cardboard container and screw into the mine finger-thight. Place mine in its hole cover side up. |
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NEUTRALIZATION: |
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To neutralize the mine, revers the arming procedure outlined above. |
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REMARKS: |
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1. If mine is to be re-used, inspect the fuze to see that the thin-walled brass sleeve has not been crushed. |
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