The pattern maker's assistant : embracing lathe work, branch work, core work, sweep work, and practical gear construction : the preparation and use of tools : together with a large collection of useful and valuable tables (1878)
Rose, Joshua · New York : D. Van Nostrand · leaf 62
ize — that is to say, from 4 feet upwards — will require more support than is afforded by the four arms of the cross. Three bars can be put together, so as to give six arms, which will an- swer probably for a G or 7 feet chuck. For still larger sizes, it is necessary to cast a strong circular plate… … ter, a special lathe is of great advantage, because a lathe having an elevated bed is so tremulous and shaky ; while those having large solid heads are too cumbersome, and are not belted to run at a sufficiently high rate of speed. In such cases, the arrange-
Patternmaking
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
