, 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… … sure of not more than 3 or 4 ounces per square inch when leaky without tafcing it oft the Doner. Ap- 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 the…
Combination · Claim · Patents · Manner · Arranged · Constructed · Set · Purpose · Purpose set · Three years · Rotary motion · Scientific American · Address munn · Purposes set · Improved article · Years ago · York city · Patent granted
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