- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who distributes nitroglycerin to processing departments of dynamite plant and prepares nitroglycerin for shipment. Respnsibilities include:
* Signals nitroglycerin neutralizer to release specified amounts of nitroglycerin to storage tanks.
* Tests acidity of nitroglycerin, using litmus paper.
* Turns valve to release sodium carbonate solution into nitroglycerin to neutralize excess acid that could cause decomposition of material and explosion.
* Transfers nitroglycerin from storage tank to lead-lined or stainless steel tanks mounted on wheels.
* Pushes tanks to mix house or other processing department.
* Washes tanks between loads with sodium carbonate solution and water, using hose and brush.
* Fills glass or stainless steel vials with nitroglycerin, using filling spout, and packs vials in boxes.
Industry:Professional careers
A professional who assists pilot-control operator in testing methods and chemical processes for product development. Respnsibilities include:
* Climbs absorption, fractionating, and scrubbing towers to collect samples of solutions or products for laboratory analysis.
* Performs routine titration, concentration, and gravity tests, using standard test equipment.
* Adds catalysts, reagents, liquids, or solids to solutions as directed.
* Reads gauges and charts and records operational data in plant log.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who assists pilot-control operator in testing methods and chemical processes for product development. Respnsibilities include:
* Climbs absorption, fractionating, and scrubbing towers to collect samples of solutions or products for laboratory analysis.
* Performs routine titration, concentration, and gravity tests, using standard test equipment.
* Adds catalysts, reagents, liquids, or solids to solutions as directed.
* Reads gauges and charts and records operational data in plant log.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who tends equipment that grinds and sifts animal bones to form bonemeal and bone flour. Respnsibilities include:
* Starts grinder, shaker screens, and conveyors.
* Turns dials on control panel to synchronize feed of bones into grinder and ground bones into shaker screens that separate bonemeal and bone flour.
* Adjusts length of rocker arm on vibratory feeders and shaker screens to regulate oscillation speed, using wrenches, to maintain uninterrupted production.
* Observes ammeter on control panel to detect overloading.
* Monitors equipment to detect clogging and malfunctions.
Industry:Professional careers
A professional who tends dry end of cellophane casting machine that dries and winds continuous sheet of cellophane into rolls. Respnsibilities include:
* Threads film emerging from washing and coating tanks through heated rollers and starts sheet onto winding core.
* Turns switch to regulate winding speed and film tension according to specifications.
* Observes temperature gauge and turns steam valve to maintain specified heat of rollers.
* Cuts cellophane with knife to stop feed on completed roll and removes roll from winding assembly, using hoist.
* Signals casting-room operator to request changes in forming speed of cellophane to prevent film breaks or wrinkles during roll changes.
Industry:Professional careers
A professional who tends extractor tanks, distilling and condensing units, and auxiliary equipment that removes grease from bones for further processing. Respnsibilities include:
* Loads bones into extractor tanks and bolts tank door, using wrench.
* Turns valves to circulate naphtha and live steam through extractor tanks to dissolve and remove grease from bones.
* Observes tank thermometer and color of vapor through viewing glass to determine when all grease has been removed.
* Turns valves to circulate spent naphtha through distilling and condensing units.
* Starts steam pump to force grease into treating tank.
* Notifies other workers to start and stop screw conveyor that removes degreased bones from extractor.
* Closes top valves and opens bottom valves on extractor tanks to flush naphtha from tank for processing subsequent batches of bones.
Industry:Professional careers
A professional who tends battery of automatic machines that heat and form plastic or nylon filament into spiral, serpentine, or ladder shape for teeth portion of zippers. Respnsibilities include:
* Mounts reel of filament on machine spindle and threads filament through guides and tension bars into electrically heated device (strip heater).
* Threads filament between forming dies and through cooling tube to takeup reel.
* Starts machine and observes filament for loosely formed spiral or tight kinks, indicating variations in temperature, and adjusts rheostat knob to regulate heat.
* Measures filament for conformance to specified dimensions of height, width, and spacing, using micrometer.
* Inspects samples of formed filament for height, width, and spacing of teeth, using comparator (shadowgraph), and counts number of teeth in specified length of filament to verify conformance to specifications.
* Notifies supervisor of machine malfunction.
Industry:Professional careers
A professional who tends mixing kettles to mix and heat chemical ingredients to make cleaning and polishing compounds according to formula. Respnsibilities include:
* Weighs or measures specified amounts of ingredients on scale or in measuring containers.
* Pours or shovels ingredients into mixing kettles.
* Turns valves to regulate gas flame or steam pressure to maintain specified temperature in kettles.
* Starts agitator to mix ingredients for specified time.
* Turns valve to drain mixed ingredients into drums, filler machine, or storage tanks.
* Cleans mixers, kettles, scales, and work area, using solvent and rags.
* May mix ingredients in portable mixer.
* May be designated according to kind of cleaning or polishing product made as shoe-dressing maker.
Industry:Professional careers
A professional who tends equipment that converts liquid carbon dioxide into dry ice. Respnsibilities include:
* Turns valves to transfer liquid carbon dioxide to batch tank for weighing, and to expansion chamber where snow is formed by sudden release of pressure.
* Pushes lever of press to lower hydraulic ram that compresses snow into cakes.
* Pushes cakes onto conveyor that carries them under power saws that cut cakes to specified size and transfers them onto scale.
* Weighs cakes on scale, records weight, and covers dry ice with paper.
* Lifts ice into insulated box.
* Tends booster pumps to fill cylinders with liquid carbon dioxide under pressure.
* May tend automated system that converts liquid carbon dioxide into dry ice.
Industry:Professional careers
A professional who tends equipment that converts liquid carbon dioxide into dry ice. Respnsibilities include:
* Turns valves to transfer liquid carbon dioxide to batch tank for weighing, and to expansion chamber where snow is formed by sudden release of pressure.
* Pushes lever of press to lower hydraulic ram that compresses snow into cakes.
* Pushes cakes onto conveyor that carries them under power saws that cut cakes to specified size and transfers them onto scale.
* Weighs cakes on scale, records weight, and covers dry ice with paper.
* Lifts ice into insulated box.
* Tends booster pumps to fill cylinders with liquid carbon dioxide under pressure.
* May tend automated system that converts liquid carbon dioxide into dry ice.
Industry:Professional careers
