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The Boxpok was the most common of the four disk wheels in use by US steam locomotive designers, the others being the
Baldwin and Scullin. A fourth design, the Universal, was used in locomotive rebuilds. All vary slightly in appearance but are essentially the same in structure.
74:(BFB) wheel in use on British railways at that time, but this is incorrect; while the BFB is similar to the Boxpok, one side of each box section is left open, so is not a true box structure unlike the Baldwin, Boxpok and Scullin drivers.
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and stability than conventional drivers, which is important for fast locomotives. The Boxpok wheel was patented by
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that gains its strength through being made of a number of box sections rather than having traditional solid
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The term "Boxpok" is also sometimes used to describe the
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148:This steam locomotive-related article is a
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116:Perfecting the American Steam Locomotive
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16:Type of steam locomotive wheel
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152:. You can help Knowledge by
118:. Indiana University Press.
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114:Lamb, J Parker (2003).
204:Steam locomotive stubs
48:General Steel Castings
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62:Other wheels
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