Cokers, or coke locomotives, are small, usually electric, industrial locomotives. They are used to move special quenching cars from the coke side of by-product coke ovens to the quenching towers and then to the coke wharf for unloading and then repeat the cycle again and again. They are most often specially built for this special purpose, rather then being an ordinary industrial locomotive.
Quenching cars are special side dump hopper cars specific to by-product coke oven facilites. As they are used to contain red hot (about 2000 degrees) coke and withstand the thermal shock of the water quenching, special materials and engineering goes into their construction.
The 'Coke side' of a by-product coke oven battery is the side that the finished coke is pushed out of. The other side is called the 'Pusher side. There were a number of companies that made this special equipment:...
Atlas Car and Mfg Co. advertisment
Hunslet Engine Company
Russian Transmashholdings modern coker
Greenbat coker UK coker
Milwaukee Solvay Coke nice coker pix
Stahl Art quenching locomotive of the coke plant 'Kooksfabriek 1'
Hot Coke Conveyors 1911
Coal and Coking on the Internet
Sloss Industries Coke Facilities Cokers and Quenchers on YouTube