Man shovelling spilt coke into open door of coke oven where coal is baked. The door opens, red-hot coke pours out into a hot car beside the oven. The hot car and it's engine speed up past the camera on its way to the quenching station. There is a sign on post: "DANGER LOOK OUT FOR CARS". Man waits by open oven door for hot car. MS of door from which comes hot coke.