TUBER OPERATOR

Domain	Definition
Occupations	Sets up and operates machine to extrude thermoplastic materials to form tubes, rods, and film according to specifications: Installs dies, machine screws, and sizing rings, using handtools. Couples hose to die holder to circulate steam, water, air, or oil to die. Weighs and mixes pelletized, granular, or powdered thermoplastic materials and coloring pigments in tumbling machine according to formula. Fills machine hopper with mixed materials, using conveyor auger, or stuffs rolls of plastic dough into machine cylinders. Starts machine and sets controls to regulate vacuum, air pressure, sizing rings, and temperature; and synchronizes speed of extrusion with pulling rolls. Examines extruded product for defects, such as wrinkles, bubbles, and splits. Measures extruded articles for conformance to specifications, using micrometers, calipers, and gauges; and adjusts speed and weight controls or turns hot and cold water, air, oil, or steam valves to obtain product of specified dimensions. Tests physical properties of product with acid-bath tester, burst tester, and impact tester. May reel extruded product into rolls of specified length and weight [EXTRUDER-OPERATOR HELPER (plastic prod.; plastic-synth.)]. (references)
	Tends machines that screen foreign material from ground, devulcanized scrap rubber: Opens chute on feed conveyors or shovels scrap rubber into hopper of strainer. Starts machine that forces scrap rubber through strainer screen. Regulates speed of machine and conveyors to prevent jamming of stock. Discharges strained scrap rubber onto conveyors for transfer to refining mills, or onto handtrucks for transfer to storage. Feels strainer, and opens water valves to prevent overheating of machine and scorching of rubber. Observes rubber for color and appearance and feels strained rubber to ensure that foreign material is removed. Cleans clogged strainer screens, using scraper and solvent, or replaces clogged and worn strainer screens, using handtools. Signals drying and milling department workers to maintain specified flow of scrap rubber through strainers. May dump bags of soapstone in discharge chute to facilitate movement of stock through screen conveyor. May tend magnetic device to facilitate removal of metal from rubber. May fill containers with screened rubber to specified weight and keep record of production. (references)
Source: compiled by the editor from various references; see credits.

Anagrams: TUBER OPERATOR

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-b-e-e-o-o-p-r-r-r-t-t-u"
	-4 letters: obturator, perborate, reprobate.
	-5 letters: abrupter, aperture, barretor, barrette, barterer, beetroot, berretta, bourtree, obturate, operator, operetta, parroter, parterre, patterer, perorate, potterer, pretreat, putterer, rebutter, reporter, retorter, tabourer, tabouret, torturer, upbearer, uprooter.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.