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U.S. Department of Labor
Industry: Government; Labor
Number of terms: 77176
Number of blossaries: 0
Company Profile:
A professional who tends drying cylinder and hammer mill arranged in tandem to dry and pulverize mica. Respnsibilities include: * Turns valve to start flow of oil in burner and ignites oil to heat drying-cylinder. * Starts machines that tumble mica in heated cylinder and automatically feed dry mica into hammer mill. * Examines pulverized mica for discolorations caused by excess heat and for conformance with grinding specifications. * Adjusts controls of drying cylinder to regulate temperature and replaces worn hammers to grind mica to specifications, using handtools. * Changes screens on discharge chute of hammer mill according to size specified for mica. * May fill machine hopper with mica, using tractor equipped with scoop.
Industry:Professional careers
A professional who tends equipment that blends and melts materials, such as clay, flint, and lead oxides, to make glaze. Respnsibilities include: * Weighs specified amounts of ingredients on scale according to batch card. * Dumps weighed materials into mixing machine. * Sets timing device on mixer for specified period and starts mixer. * Observes mixture for conformance to coloring specifications. * Empties batch from machine into bin and transports bin to frit furnace, using lift truck. * Dumps materials into furnace and turns gas and air valves to heat furnace to specified temperature. * Shuts off furnace and turns wheel to pour fused mass from furnace into water sump to undergo crystallization. * Drains off water and shovels crystals (frit) into bin. * Transports bin to storage area, using handtruck.
Industry:Professional careers
A professional who tends equipment that blends and melts materials, such as clay, flint, and lead oxides, to make glaze. Respnsibilities include: * Weighs specified amounts of ingredients on scale according to batch card. * Dumps weighed materials into mixing machine. * Sets timing device on mixer for specified period and starts mixer. * Observes mixture for conformance to coloring specifications. * Empties batch from machine into bin and transports bin to frit furnace, using lift truck. * Dumps materials into furnace and turns gas and air valves to heat furnace to specified temperature. * Shuts off furnace and turns wheel to pour fused mass from furnace into water sump to undergo crystallization. * Drains off water and shovels crystals (frit) into bin. * Transports bin to storage area, using handtruck.
Industry:Professional careers
A professional who tends machine that automatically dips, sprays, steams, and dries glass articles, such as instrument lenses and hypodermic syringes. * Loads articles into baskets of machine. * Presses button to start and stop machine. * May mix cleaning solution and test solution for acidity, using hydrometer.
Industry:Professional careers
A professional who tends machine that laminates and glues paper to glass-wool for use as building insulation material. Respnsibilities include: * Feeds rolls of paper into machine. * Starts machine and observes operation to ensure that glue spreads evenly and rolls of paper adhere to both sides of glass-wool to form blanket.
Industry:Professional careers
A professional who tends machine that forms plates of built-up mica. Respnsibilities include: * Turns knob on control panel to set oven temperatures according to specifications. * Dumps mica splittings into machine hopper and fills supply tanks with binding solution. * Starts machine that distributes mica splittings on conveyor, sprays splittings with binding solution, and dries continuous sheet of mica. * Examines mica plates at discharge end of machine to detect variations in thickness. * Cuts mica sheets into plates of specified length, using cutter attached to table. * Moves controls on hopper to regulate flow of splittings according to thickness of mica plates. * Adjusts oven controls to regulate temperature. * Notifies supervisor of machine malfunctions.
Industry:Professional careers
A professional who tends machines that clean or polish forming molds and components by any of following methods. Respnsibilities include: * (1) Starts pumps on vapor-blast machine to circulate water and cleaning compound through hose. * Places parts on table and pushes table into machine cabinet. * Pushes control lever to start flow of compressed air through hose. * Holds and turns parts while directing pressurized stream of water and cleaning compound onto parts to remove dirt, carbon, and scales. * Dips parts in oil solution to prevent rusting. * (2) Inserts and secures blank mold and plunger into chuck of open-end polishing jack or lathe. * Holds emery cloth over rotating plunger or inserts rod, covered with emery cloth, into mold to clean and polish parts. * (3) Holds and turns parts against rotating emery wheel. * May soak parts in hot cleaning compound or scrape parts, using scraper to loosen or remove scales and carbon. * May rub mold surface with oil or kerosene and abrasive stone or wire brush to remove scale, rust, scratches, and dirt. * May apply cork or graphite paste coating to mold interiors to prevent adherence of glass to molds during forming operation. * May store cleaned molds in storage bins. * May transfer molds and mold parts from storage to production area, using handtruck.
Industry:Professional careers
A professional who tends equipment that dries raw ground materials and makes pellets. Respnsibilities include: * Starts pelletizer rotating and starts feed and discharge conveyors and traveling grates in preburning-ovens. * Turns valves to regulate water sprays in pelletizer and heat in oven. * Observes mixing of materials and water to determine if uniform nodules are being formed. * Observes feed hopper to ensure uniformity of filling. * Regulates feed of materials, rotation of pelletizer, amount of water spray, and heat of oven to ensure pellets are produced to specifications. * Opens inspection ports on oven and observes or removes pellets for examination to ensure specified hardness and heat.
Industry:Professional careers
A professional who tends equipment that dries raw ground materials and makes pellets. Respnsibilities include: * Starts pelletizer rotating and starts feed and discharge conveyors and traveling grates in preburning-ovens. * Turns valves to regulate water sprays in pelletizer and heat in oven. * Observes mixing of materials and water to determine if uniform nodules are being formed. * Observes feed hopper to ensure uniformity of filling. * Regulates feed of materials, rotation of pelletizer, amount of water spray, and heat of oven to ensure pellets are produced to specifications. * Opens inspection ports on oven and observes or removes pellets for examination to ensure specified hardness and heat.
Industry:Professional careers
A professional who tends machine that compresses stack of mineral wool insulation batts and inserts them into bag cover. Respnsibilities include: * Starts machine and compressing mechanism. * Opens and slides bag cover over form for filling. * Pulls lever to operate discharge mechanism and force stack into bag. * Slides package onto table for stapling.
Industry:Professional careers