- Domeniu: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends pneumatic coal-cleaning table that blows coal dust, sulfur, and other impurities from coal as it passes through preparation plant. Respnsibilities include:
* Starts machine and adjusts valve to regulate air pressure.
* Observes coal as it passes over cleaning table and removes oversized lumps, rocks, or foreign matter.
* Adjusts and lubricates mechanical parts of machine, using handtools, grease gun, and oilcan.
Industry:Professional careers
A professional who tends vacuum-filter dewaterer and gas-fired pan-drier to prepare flake graphite from mill slurry. Respnsibilities include:
* Starts pumps, filter, and drag mechanism on pan-drier.
* Lights gas burners on drier with torch and turns valves to regulate temperature as judged by color of flame.
* Turns valves to admit graphite slurry into dewaterer which extracts water (by means of vacuum exerted through rotating filter paddles) and discharges damp graphite onto pan of drier.
* Judges degree of dryness of graphite as drag mechanism moves it along length of drier pan.
* Adjusts drying rate by regulating input rate of graphite slurry into dewaterer.
* Removes filter paddles and replaces filter cloths (socks), using mechanic's handtools.
Industry:Professional careers
A professional who tends semiautomatic wax-molding machine that produces wax patterns used in lost-wax casting process. Respnsibilities include:
* Sprays interior surface of die with parting agent.
* Places die against stops in bed of machine and starts machine that forces melted wax into die by injection or centrifugal process.
* Loosens pattern from die, using airhose.
* Removes pattern from die and inspects it for defects.
* Cleans excess wax from pattern, using knife.
* May pour melted wax into holding cup of machine.
* May be designated according to molding process used as Centrifugal-Wax Molder; Injection-Wax Molder.
Industry:Professional careers
A professional who tends machine that winds asphalt-coated roofing felt into rolls of specified length and width. Respnsibilities include:
* Threads felt through feed rollers and inserts end in takeup reel.
* Starts machine that automatically weighs and ejects completed roll after specified weight has been wound.
* Depresses pedal to activate knife that severs roll from continuous feed after specified weight has been attained.
* May change gears to vary size and weight of rolls, using handtools.
Industry:Professional careers
A professional who tends screening and blending machine that removes rocks and twigs from coarse coke and mixes it with fine-ground coke to produce blended mix used to pack carbon electrodes in graphite furnaces. Respnsibilities include:
* Shovels or dumps coarse coke onto vibrating screens.
* Starts screens that separate rocks, twigs, and other materials from coke.
* Starts conveyors that carry sifted coke from screening area and fine-ground coke from storage bins to top of blending tanks and dumps them into tanks.
* Starts blender blades that mix coke.
* Turns valves to release blended mix from blending tanks into storage tanks for removal to graphite furnaces.
Industry:Professional careers
A professional who tends screening and blending machine that removes rocks and twigs from coarse coke and mixes it with fine-ground coke to produce blended mix used to pack carbon electrodes in graphite furnaces. Respnsibilities include:
* Shovels or dumps coarse coke onto vibrating screens.
* Starts screens that separate rocks, twigs, and other materials from coke.
* Starts conveyors that carry sifted coke from screening area and fine-ground coke from storage bins to top of blending tanks and dumps them into tanks.
* Starts blender blades that mix coke.
* Turns valves to release blended mix from blending tanks into storage tanks for removal to graphite furnaces.
Industry:Professional careers
A professional who assists treater in processing petroleum products, such as gasoline, kerosene, oils, and wax, with chemicals, steam, water, or air to remove impurities, such as sulfur. Respnsibilities include:
* Examines pipelines and valves for leaks.
* Turns valves to charge equipment with product to be treated and to draw off water and spent chemicals after treatment and separation.
* Adds treating chemicals, such as sulfur and litharge, to product by turning valves or by dumping chemicals directly into equipment.
* Lubricates, adjusts, and performs minor maintenance on equipment and machinery as directed.
* May regulate pump speeds to control circulation of solution and product through unit.
* May gauge tanks with calibrated rod or tape to determine quantity of content.
* May make chemical, specific gravity, and color tests of product and treating solution to determine process conditions.
* May draw samples of product for laboratory analysis.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who assists wash-oil-pump operator in extracting light oil (crude benzol) from coke-oven gas. Respnsibilities include:
* Opens valves and starts equipment.
* Reads gauges and records data as directed.
* Cleans coils, equipment, and work areas, using hose, water, cleaning agents, and broom.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who tends pumps that refill air and hydrogen purification filters with water and solutions to maintain operating levels. Respnsibilities include:
* Reads gauges to check levels of water, liquid nitrogen, and caustic solution in air and hydrogen purification filters.
* Starts pumps that refill purification filters with water or other solutions to maintain specified levels.
* Cleans and changes filters of air and hydrogen driers.
* Records pressure and temperature readings of compressors, filters, and driers.
Industry:Professional careers
A professional who assists briquette-machine operator in dehydrating, pulverizing, mixing, and molding ingredients to produce fuel briquettes. Respnsibilities include:
* Inserts suction hose into opening in top of tank trucks and starts motor to transfer powdered charcoal, coal, or coke from truck to storage.
* Shovels or dumps sacked briquette ingredients into hoppers.
* Scrapes ingredients from drying oven with scraper and shovels ingredients onto conveyor.
* Pounds on conveyor pipes with hammer or woodblock to loosen clogged material.
* Lubricates machines and removes and installs machine parts as directed by briquette-machine operator.
Industry:Professional careers
