- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends equipment that mixes, rolls, cuts, and grinds raw materials into chips used to marbleize vinyl and asphalt asbestos floor tile. Respnsibilities include:
* Weighs out specified quantities of materials, such as limestone, resins, and asbestos fibers, and dumps them into hopper of mixer.
* Starts mixer and adjusts temperature controls to attain specified consistency of material.
* Dumps materials from mixers onto conveyor that conveys material into calenders that roll materials to prescribed thickness.
* Presses pedal to activate knife that automatically cuts material into slabs.
* Loads slabs onto conveyor that moves them through drying oven and dumps them into grinders to form chips.
Industry:Professional careers
A professional who tends series of spheres or tanks to store and distribute liquid chemicals for use in production of industrial or consumer products, such as phosphoric acid, synthetic rubber, resins, and solvents. Respnsibilities include:
* Observes flowmeters and pressure gauges, turns valves, and starts pumps to transfer fluid chemicals to or from specified tanks and to processing areas.
* Gauges quantity of chemicals in tanks, using calibrated steel tape or rod and conversion tables.
* Maintains records of materials received and distributed, gauge readings, pumping time, and storage dates.
* Patrols tank farm area to inspect pumps, motors, valves, piping, and electrical ground-wire connections.
* Reports leaks, temperature and pressure abnormalities, and other potential hazards.
* May regulate admission of products through preliminary processing units, such as water-treating and refrigerating units, heat exchangers, and purification and filtration equipment.
* May draw samples of chemicals for laboratory analysis or perform concentration, acidity, or composition tests, using standard test procedure and equipment.
* May circulate fluids through weigh tanks to facilitate inventory control or supply processing areas with preweighed ingredients.
Industry:Professional careers
A professional who tends series of spheres or tanks to store and distribute liquid chemicals for use in production of industrial or consumer products, such as phosphoric acid, synthetic rubber, resins, and solvents. Respnsibilities include:
* Observes flowmeters and pressure gauges, turns valves, and starts pumps to transfer fluid chemicals to or from specified tanks and to processing areas.
* Gauges quantity of chemicals in tanks, using calibrated steel tape or rod and conversion tables.
* Maintains records of materials received and distributed, gauge readings, pumping time, and storage dates.
* Patrols tank farm area to inspect pumps, motors, valves, piping, and electrical ground-wire connections.
* Reports leaks, temperature and pressure abnormalities, and other potential hazards.
* May regulate admission of products through preliminary processing units, such as water-treating and refrigerating units, heat exchangers, and purification and filtration equipment.
* May draw samples of chemicals for laboratory analysis or perform concentration, acidity, or composition tests, using standard test procedure and equipment.
* May circulate fluids through weigh tanks to facilitate inventory control or supply processing areas with preweighed ingredients.
Industry:Professional careers
A professional who tends equipment that washes and reduces acidity of activated carbon, preparatory to drying. Respnsibilities include:
* Turns valves, couples hoses, and starts pumps to circulate carbon sludge through washing and blending tanks in specified timing and sequence.
* Admits prescribed amount of caustic soda into mixing tank or barrel to produce neutralizing solution of prescribed concentration.
* Starts agitators in blending tanks and opens valves to admit water, caustic solution, and steam to system as directed by wash operator.
* Takes samples of carbon sludge and wash solution to determine acidity, using titration test and conversion chart.
* Determines specific gravity of neutralized solution, using hydrometer, beaker, and siphon, and reports reading to system operator to facilitate process control.
* Measures depth of carbon sludge in tank, using calibrated rod or suction tube.
* Pumps washed and neutralized carbon to driers when test results indicate washing is completed.
* Records tank-level and specific gravity readings in shift log.
* Flushes tanks and lines with water hose, dismantling piping as necessary to remove caked deposits, using wrenches.
Industry:Professional careers
A professional who charges tower with limerock used in preparation of acid for cooking wood chips. Respnsibilities include:
* Breaks limerock with maul and washes dirt from pieces, using hose.
* Fills handtrucks with limerock and pushes truck to tower.
* Starts elevator or bucket conveyor to transport limerock to top of tower and fill tower to specified depth.
* Closes tower filling hatch and fastens it with clamps.
* Scrapes slag from tower grate and rakes slag from tower floor, using scraper and rake.
* May operate scoop truck to transport limerock to tower.
Industry:Professional careers
A professional who charges tower with limerock used in preparation of acid for cooking wood chips. Respnsibilities include:
* Breaks limerock with maul and washes dirt from pieces, using hose.
* Fills handtrucks with limerock and pushes truck to tower.
* Starts elevator or bucket conveyor to transport limerock to top of tower and fill tower to specified depth.
* Closes tower filling hatch and fastens it with clamps.
* Scrapes slag from tower grate and rakes slag from tower floor, using scraper and rake.
* May operate scoop truck to transport limerock to tower.
Industry:Professional careers
A professional who tests hardness of medicinal tablets to ensure conformity with production specifications, using balance scale and hardness tester. Respnsibilities include:
* Places sample tablet on scale pan, using tweezers, and records weight.
* Places tablet in hardness tester, turns screw to raise tablet until it touches pressure rod, and depresses pneumatic foot pedal to squeeze tablet until breakage occurs.
* Examines and fingers tablets to detect chips and tackiness.
* Notifies compressor when tablets do not meet weight or hardness specifications.
* May test tablets, using hand-operated hardness tester.
* May weigh entire batch of tablets to compare with total weight of ingredients used.
Industry:Professional careers
A professional who operates capsulating machine to fill gelatin capsules with medicinal preparations. Respnsibilities include:
* Scoops empty capsules into loading hopper and scoops medicinal preparation into filling hopper of capsulating machine.
* Fills capsule rings with empty capsules, uncouples rings, and fills lower half of capsule with powdered or pelletized medicine.
* Recouples capsule rings and inserts rings into closing and ejecting forks.
* Depresses pedal to close filled capsules and eject them into receiving container.
* Polishes capsules, using polishing cloth, and inspects capsules for breakage and defective filling.
* Weighs specified number of capsules and compares weight with weight specification sheet.
* May operate capsule branding machine to print establishment name on capsule.
Industry:Professional careers
A professional who controls equipment to fill rocket motor cases with rocket fuel and to cure rocket fuel. Respnsibilities include:
* Attaches handling ring or sling to motor case, using handtools or portable power tools.
* Positions motor cases in casting rig (special jig), using hoist, and tightens holding clamp with wrench.
* Inserts mandrel (core) inside motor case, using hoist, and tightens clamps on casting rig to hold it in position.
* Conveys and positions casting can over rig, using hoist, and connects hose to rig.
* Moves console controls to pump fuel from casting can to motor case.
* Observes level of fuel in case through closed-circuit television and moves controls to regulate volume of fuel charge.
* Stops pump and presses hydraulic control to move mandrel into final position in motor case.
* Lifts motor case onto overhead conveyor, using hoist, and starts conveyor to move motor case into curing oven.
* Observes recording-instrument charts on control panel of curing oven to verify specified temperatures and curing times.
Industry:Professional careers
A professional who controls equipment that processes coal tar hydrocarbons into intermediate compounds for use in manufacture of dyestuffs and pharmaceutical products. Respnsibilities include:
* Measures coal tar derivatives, using balance scales and volume indicators.
* Shovels or pumps derivatives into specified containers.
* Observes recording instruments, and adjusts steam, water, and vacuum valves to regulate temperature and pressure during chemical reactions that produce specified intermediates.
* Tests acidity of intermediates, using pH indicators.
* Tests solubility of intermediates in liquids, such as water, alcohol, and chloroform.
* Adds specified chemicals to intermediates to ensure that they meet requirements.
* Dumps ice into intermediates to reduce temperature.
* Pumps intermediates through filter to remove liquid residue.
* Heats intermediates and circulates vapors through condenser lines to isolate components of intermediates.
* May be designated according to equipment tended as kettle operator ii; tub operator; process involved as bromination equipment operator; sulfonation equipment operator; or material produced as optical-brightener maker.
Industry:Professional careers
