e which forms theeye, one side being thick and the other side thin. One endmay be hotter than the other and therefore spread more whenthe pressure comes on it, so that when bent it necessitatesmore labor with the hammer. Another method is to forge the blanks. There is also an-other way— rolling… … Improved Form of Ax Blank, This invention consists in rolling a bar of iron into theshape of a continuous series of blanks for ax heads, the fiberof the iron running lengthwise of the bar and ax head. The blanks are formed by a pair of rollsprovided with a groove or grooves, the con-tour of which…
Patents · Turret · Boiler · Iron · Carbonic acid · Consists · Wrought iron · American patent · Pilot house · Steam boiler · Patent office · Step support · Steam engine · Scientific American · Turret wall
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