Fry, Horace Pugh. [from old catalog] · Philadelphia [The John C. Winston co.] · leaf 45
Department standard cross-section paper -^^ ruling. 1 — 3H lead pencil. 1 Green pencil eraser. 1-2 Ft. rule. 1 Pair 6 firm joint inside calipers, good grade. 2. The tools enumerated above are the only ones to be usedby the student for making sketches. 42 3. The object of a sketch is to give, in as… … iuzci.ls^ut I Fig. 26. or the part represented to enable a draftsman to make completeworking drawings. Sketches are to be made freehand on cross-section paper, ruled 10 divisions to the inch. 43 4. Each sketch sheet must contain the name of the machine atthe top and directly under the views the…
Mechanical drawing
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