Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 172
weld-ing by utilizing it in a properly designed machine of what is called the indirect type. 1888.] THE LOCOMOTIVE. 163 The amount of power required to do this welding is used for so short a time that itscost is really nothing, a few seconds only being required to weld the largest bars. Twentyhorse… … Fiu. 7. In Fig. 7 an attempt has been made to show on an enlarged scale the section inFig. 1. This is a difficult matter to do; but under a power of about 40 to 50 diameterson a compound microscope, the denser and more homogeneous structure of the ironthrough the line of the weld is beautifully…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
