gle iron great strength and lightness are required, the the relative parts which are employed in the the curbs, it is secured by clamps to the inner ribs and braces, and the iron of the arch itself shell of the boiler should also be made of the construction of any boiler. or smaller curb, and the… … invented by Mr. J. Berdan, of Plymouth, Michi- which is a lodging place for scale, and thus a ted plates In the crowns of furnaces, in the total oost, and if to this be added the saving gan, the principal features of which are not a great evil is removed. There is, therefore, a of weight and cost…
Patents · Improvement · Arm · Locomotive · Vertical · Oil gas · Iron · Steam engine · Felloe timber · Patent office · Coal Tar · Great number · Great strength
Internet Archive · Public domain (published before 1931). Free to use for anything.
