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 16
ther adjustment, or the stonethe Film. itself may be swerved under the film to t^uit as in Figure 6. 6 THE BEN DAY RAPID SHADING MEDIUMS The adjustment of the Shading Film in the sliding carriages MechanismF and G is a matter of the utmost importance. We will first de- for Hingingscribe these parts… … THE STONE MAY BE SHIFTED UNDER THE HOLD-PAST OR THE HOLD-FASTMAY BE SWERVED OVER THE STONE. C^ C^, which secures each carriage firmly to the bar E. The car-riages can thus be secured to the bar E at any points in its length,and can be revolved on the bar so as to raise or depress the…
Drawing instruments
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