Worcester Polytechnic Institute
University Photograph Collection (UA 001)
Two men apply molds for a thermit weld to a grooved rail. From the lecture slides for Iron Carbon System (Steel) of faculty member Carl G. Johnson
Digital image captured from photograph, negative, or slide held in Archives & Special Collections.
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Johnson, Carl G., "Thermit Rail Welding - Applying molds to rail- Groove Rail" (2013). Historical Images. Paper 639.
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