being readily worked sively passed through the rollers, is continued, for sheet the required size, a steel arbor forming the inside of the brass, until the plates are reduced sufficiently thin for any on the lathe, or filed, -without clogging the teeth of the file. tube as the draw plate shapes and… … BENEDICT & the metal is passed through draws of the required shape, rolled down to about half an inch thickness, the size from of copper to three of zinc and three of tin, while for heavy bearings a brass is made of thirty-two parts of copper to that point being diminished by the drawing. and in…
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