New machine employing Shorter process, described and illustrated; known as type G.2 surface hardening machine; it is suitable for hardening spur, bevel and single and double helical gears and all straight surfaces. (see also Engr v 169 n 4397 Apr 19 1940 p 384-5)
Flame hardening
Automobile Engr
Automobile Engineer ; 30 , n 397
1940
Article (Journal)
English
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Engineering Index Backfile | 1942
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