Anything dragging from the train will hit this cone, thus pushing it back, thus breaking a contact Then it returns to its normal position to prepare for anything else that might be dragging under the train.
It then returns to its normal position to prepare for anything else that might be dragging under the train. Anything dragging from the train will hit this cone, thus pushing it back, thus breaking a contact.
Anything dragging from the train will hit this cone, thus pushing it back, thus breaking a contact. It then returns to its normal position to prepare for anything else that might be dragging under the train.
Anything dragging from the train will hit this cone, thus pushing it back, thus breaking a contact. It then returns to its normal position to prepare for anything else that might be dragging under the train.