The Train Dispenser is a machine added by Railcraft. This block works similar to the Cart Dispenser in that it places carts in front of it when it receives a Redstone signal, assuming it has at least one cart in its buffer. If there is a cart obstructing it, it will pick it up instead of dispensing another one. Unlike the standard Cart Dispenser, it can place strings of carts and automatically link them together like a Crowbar.
Damaged Crowbars cannot be used in this recipe.
The Train Dispenser has 2 sections in its GUI, Pattern and Buffer. The Pattern section defines what order the Minecarts will be placed in. The Buffer section stores Minecarts that will be used for the Pattern. The Train Dispenser has a maximum train length of nine carts long.