How to work it; a manual for the use of the Ben Day rapid shading mediums and its registry attachments (1913)
Day, Ben, Inc, Day, Benjamin, 1838-1916 · New York, Reprint by Ben Day, inc. · leaf 15
a flying frame. LithographicThis adjustment is accomplished as follows: Stone. First unlock the clamping screws C^ C^ and C^* C^; lift the bar 5 THE BEN DAY RAPID SHADING MEDIUMS E the elevation of which is regulated by the sector slots C** C*,and draw the side-rods D D through the boxes C^ C^… … Fig. 5. THE HOLD-FAST PLACED UPON THE DRAWING TABLE AND AD.TUSTED TOTHE HEIGHT OF A LITHOGRAPHIC STONE. Hera the Shading Medium is held hy the extension frame run out to itslimit. This shows the adjustment of the apparatus to one of the smallest stones. from its surface in a parallel line about Vs…
Drawing instruments
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