No minor under the age of sixteen years shall be employed, or permitted, to work in any capacity in operating or assisting in operating any of the following machines:
(a) Circular or band saws; wood shapers; wood-jointers; planers; sandpaper or wood-polishing machinery; wood turning or boring machinery.
(b) Picker machines or machines used in picking wool, cotton, hair, or other material; carding machines; leather-burnishing machines; laundry machinery.
(c) Printing-presses of all kinds; boring or drill presses; stamping machines used in sheet-metal and tinware, in paper and leather manufacturing, or in washer and nut factories; metal or paper-cutting machines; paper-lace machines.
(d) Corner-staying machines in paper-box factories; corrugating rolls, such as are used in corrugated paper, roofing or washboard factories.
(e) Dough brakes or cracker machinery of any description.
(f) Wire or iron straightening or drawing machinery; rolling-mill machinery; power punches or shears; washing, grinding or mixing machinery; calendar rolls in paper and rubber manufacturing; steam-boilers; in proximity to any hazardous or unguarded belts, machinery or gearing.