Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 466
Fig. 131. Rolling Mill Ilou.sing Welded by Thermit ProcessCourtesij of GoUhchmidl Thermit Companij strength of the weld. If the manganese is not obtainable, a percent of ferromanganese may be added instead, although it increasesthe violence of the reaction and hardens the metal. Strength of the… … Fig. 132. Rails Welded by Thermit ProcessCourtesy of Goldschmidt Thermit Company
Electrical engineering
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