@@freebrickproductions WCH bells are my favorite, To build this in Minecraft, build a railroad crossing from craftyfoxe's idea and take a grindstone put it on top of the railroad crossing.
There are no wires attached to the power input that runs down to the bottom of the bell. You need to attach wires to both the positive and negative inputs and connect those to a battery or a train transformer.
I did see the Hammer inside the Mechanical Bell. It was hard to see though because of the dots in the Video Screen. You can see it better if you used a Flashlight while doing a video of the Mechanical Bell.
I don't think the RACO Bell isn't at crossings anymore. I'm guessing they got replaced when the bell died. When a bell died, they stop working. Like down by Willams Avenue in Madison TN.