French, Arthur Willard, 1868-, Ives, Howard Chapin, 1878-1944. joint author · New York, J. Wiley & Sons. Inc.; London, Chapman & Hall, Limited · leaf 44
ge to these drafts. To sink thedrafts tivisting rules are used. The first rule has its two edges STONE-CUTTmG. 27 parallel; the second has its edges diverging, the height at one endof the rule equaling the height of rule number one, and the otherend wider than the first, the amount depending on the… … Fnj. 33. surfaces. Fig. 34 shows a warped surface with the twisting rulesin place. The wires conucjcting the rules are to keep them at theright distance apart, and are used in some cases. - - AkT; 4.- J^opBLS IN Plaster.52. A valuable exercise inl connection with the study of thevarious problems…
Stereotomy
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