Job Definition

(a) heating glass to pliable stage, using gas flames or ovens, and rotating glass to heat it uniformly
(b) blowing and bending glass tubing into specified shapes to form scientific apparatus like flasks, retorts, pipettes
(c) grinding and polishing glass objects or parts to correct defects or to prepare surfaces for further finishing and smoothening and polishing rough edges, using belt sander or polishing wheels
(d) examining glass stock and finished products and marking or discarding items with defects such as spots, stains, scars, snags, chips, scratches, or unacceptable shapes or finishes
(e) reading work orders to determine dimensions, cutting locations, and quantities to cut
(f) observing gauges, computer printouts and video monitors to verify specified processing conditions and make adjustments as necessary
(g) positioning pattern or drawing on glass, measuring dimensions, and marking cutting lines, using glass cutting tools and cutting glass along marked outlines or around pattern
(h) setting up, operating and adjusting computerized or robotic glass cutting equipment
(i) inspecting, weighing, and measuring products to verify conformance to specifications, using instruments such as micrometers, callipers, magnifiers, and rulers
(j) regulating oven temperatures according to glass types to be processed
(k) transferring pattern for individual stained glass parts from full size drawing to pattern paper, using stylus to trace drawings
(l) spraying silver solution on glass to provide mirrored surface, using spray gun
(m) laying out, cutting and grinding optical and other glass to specified dimensions, weight for moulding into lens blanks and for use as watch crystals

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