英和和英

出典:『Wikipedia』 (2011/05/30 18:22 UTC 版)

英語による解説

引用

A trip hammer, also known as a helve hammer, is a massive powered hammer used in:

• agriculture to facilitate the labor of pounding, decorticating and polishing of grain;
• mining, where ore from deep veins was crushed into small pieces (though a stamp mill was more usual for this); and
• finery forges, for drawing out blooms made from wrought iron into more workable bar iron
• in fabricating various articles of wrought iron, latten (an early form of brass), steel and other metals.