Operating principles of machine designed for hardness tests on large-sized or fixed surfaces (such as head of railway rails, tires, etc., in service), by standard method of applying steady load to indenter for definite time, developed by London, Midland and Scottish Railway Co, Derby.
Portable hardness testing machine, with diamond pyramid indenter
J Sci Instruments
Journal of Scientific Instruments ; 10 , n 1
1933
3 pages
Article (Journal)
Electronic Resource
English
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