How Deflated " Giants " May Cause Fires

An Interesting Analysis of Troubles Which May Follow Prolonged Running on a Deflated Cover The Essential Ledgers. Order Book.—The particulars to be shown are the date on which......

Steel-backed Cast-iron Brake Drums

r - I F the two materials commonly used %a/for the manufacture of brake drums —steel and cast-iron—both have disadvantages and advantages. The former metal is lighter, has......