1850 5 Dec. 2/4 The rail mill has been moving on in the manufacture of railroad iron, very steadily and successfully.
1925 111 528 At the Gary Works in Illinois there is a rail mill in which the ingot is actually continuously cogged.
2002 P. Krass xxvi. 362 He..reported..that the company's operations continued to lose money, but that its rail mill was busy.