, and diminish its transverse strength, the roll- BROUGHTON’S GAGE COCK. number of times without being removed from the ing action of this die preserves the homogenous char- boiler; consequently they are durable. They can be acter of the metal, and secures its.equal strength in This engraving… … when leaky without taking it off the boiler. Then the tube was slipped upon the taper end of the is all that is necessary. In the Crystal Palace tube pended is the inventor’s description:— mandrel, this was passed through the die into the jaws of the sliding block, and the key was dropped, locking…
Internet Archive · Public domain (published before 1931). Free to use for anything.
