Chamber gate

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Chamber gate of Helfenburk Castle

As a chamber gate is in medieval ramparts and Burgen a system of at least two successively arranged gates designated, which are connected by walls together to form a well to be monitored passage. Chamber gates can be placed in the free space between two circular walls or they can be attached to the circular wall as an independent gate. Since relatively few fortifications are surrounded by a complete second wall ring, chamber gates often find space in a short section of the kennel .

Chamber gates were often integrated into existing buildings and secured by overlying defensive floors or defense towers as well as with portcullis and drawbridges .