2/1/2023 0 Comments Thrall ten ton hammer![]() ![]() As typical with cars designed to haul carbon black, they featured tight-sealing 16” round roof hatches (22 or 28 depending upon customer specifications), sampling spigots on the car sides, and “butterfly” type outlet gates. ![]() When inflated with pressurized air, the granuflators expand, and push the carbon black towards the outlets. When the car is loaded, they lay flat inside the car. Unlike traditional covered hopper designs, where the end slope sheets are plainly visible, these cars featured an enclosed, boxy design, which was a necessity due to a special design feature to aid in the unloading of carbon black.Īt the inside ends of the car are special inflatable bags, called “granuflators”. These 3-bay, 70-ton capacity covered hopper cars boasted a volume of 5750 cubic feet, and measured 51’ over their ends. introduced a new railcar designed for handling carbon black. Both prototypes were painstakingly researched from field documentation, photographs, reference books, and builder drawings.ĭuring the 1970s, Thrall Manufacturing Co. ![]() They can also be seen singularly or in small blocks of cars in mixed freight trains. Found throughout North America, these unique freight cars are commonly found in large groups near major carbon black producers or users. ![]()
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