| 摘要 |
A security transfer device 1 for mounting on a side wall of a building such as a bank for example for transferring valuables between a vehicle and the building. The security transfer device 1 comprises a duct 2 slidably mounted in a housing 3 secured in a wall 23 of the building and movable between a retracted stored position within the housing 3 and an extended in-use position projecting outwardly of the housing 3. A releasable ratchet mechanism 4 extends between the duct 2 and housing 3. When engaged the ratchet mechanism only permits outward movement of the duct 2, thus preventing the duct 2 from being pushed back into the housing from outside the building. A lockable door 12 closes an inner end of the housing 3. The duct 2 is also closed at it's rear end 19 by a lockable security door 20.
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