Society of Glass Technology · [Sheffield] · leaf 596
tone edge of the glass andthen the other. The slide, h, is drawn towards the grinding wheel,(7*, by weighted cords, n, and the line of its movement forms anangle differing from a right angle with the axis of the spindle.The stop-plate is set at an angle which is adjustable; it is movablealong a… … Fig. 147. 288. Grinding Lenses, etc. W. Taylor (Brit. Pat. No.116397, July 21st, 1917, No. 10507).—Lenses which have beenrough ground are smoothed by a lap shaped to fit the curve of thelenses, the lap and the lens-holder being mounted upon spindlesarranged at an angle to one another. The lap is…
Glass
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