A professional who tends line of mills, conveyors, shakers, and filling machine to break, sift, and package dry glue or gelatin. Respnsibilities include:

• Starts mills, conveyors, and shakers equipped with screens of prescribed mesh size.
• Opens gate in chute of hopper and drops coarse material into mill.
• Observes line to detect malfunction or breakdown of machinery as material is milled, sifted, and loaded into tank of filling machine.
• Stops line when malfunctions occur.
• Places container below filling machine and clamps spout equipped with scale to container.
• Opens valve to fill spout to prescribed weight, observing scale.
• Closes valve and opens slide gate to drop glue into container.
• Pushes slide gate to close spout and seals container.
• May stack bags on skid.
• May use device (levelator) which levels each layer of bags with floor to facilitate stacking.