- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who analyzes samples of streams, raw and treated wastewater, sludge, and other byproducts of wastewater treatment process to determine efficiency of plant processes and to ensure that plant effluent meets water pollution control requirements, using standard laboratory equipment. Responsibilities include:
* Conducts tests for settleable solids, suspended solids, total solids, volatile solids, volatile acids, alkalinity, pH, dissolved oxygen demand, turbidity, and other substances.
* Initiates changes in laboratory procedures and equipment in order to increase efficiency of laboratory.
* Directs laboratory personnel in prescribed laboratory techniques and performance of routine tests.
Industry:Professional careers
A professional who sets up, repairs, and adjusts equipment and machines to flesh, split, and spray hides. Respnsibilities include:
* Disassembles malfunctioning equipment, using handtools, and welds broken parts, replaces babbitt in bearings, or repairs or replaces machine drive belts to repair equipment.
* May install blades on machine rollers and be designated Roll Filler.
Industry:Professional careers
A professional who repairs acetylene gas welding equipment, using handtools and metalworking machines. Respnsibilities include:
* Disassembles parts, such as worn hose, torch tips, torch valves, pressure gauges and regulators.
* Examines parts and repairs usable ones, using hand files and metalworking machines, such as lathes, drill presses, and grinding wheels.
* Replaces defective parts with new or rebuilt ones, using handtools.
Industry:Professional careers
A professional who sets up and operates one or more wiredrawing machines to draw round or fancy-shaped wire or rod through one or series of dies to reduce its cross-sectional dimension, applying knowledge of working properties of metal and wiredrawing. Respnsibilities include:
* Studies specifications and determines setup procedures.
* Positions and secures specified dies in dieholders, using handtools.
* Lifts coil of wire onto feed reel, tapers end, and threads it through dies.
* Secures end of wire in jaws of drawing block or onto spool which rotates and pulls wire through dies.
* Coats wire with lubricant to facilitate drawing and starts machine.
* Inspects and measures drawn wire to verify conformance to specified shape, size, or electrical resistance, using measuring instruments, such as wire gauges, micrometers, and resistance testers.
* Cuts defective sections from wire, using wire cutters.
* Replaces worn dies, using handtools.
* Records production.
* May feed wire through electrodes of annealing unit to soften work-hardened wire.
* May weld ends of separate coils together to increase their length, using welding equipment.
* May be designated according to experience with particular size and shape of wire drawn or material worked on as coarse-wire drawer; fine-wire drawer.
* Important variations may also be indicated by trade name of machine used.
Industry:Professional careers
A professional who sets up and operates machine to form seamless tubing from pierced steel billets. Respnsibilities include:
* Installs series of rollers to form specified outside diameter of tubing.
* Installs plug onto mandrel to form specified inside diameter of tubing.
* Starts machine and moves levers to push billet into first set of rollers that force billet over plug and into following series of rollers to reduce or expand billet to tubing of specified dimensions.
Industry:Professional careers
A professional who tends automatic machines that coil, cut, and interlace wire into spiral-weave screen. Respnsibilities include:
* Threads and pulls wire through pulling and coiling dies of machines and secures end around coiling die, using pliers.
* Adjusts distance between dies and speeds of wire feed and pulling-die rotation, according to size of wire and length of spiral weave, using handtools.
* Starts machines, monitors automatic operation and wire supply, and occasionally measures length of weave to verify conformance to specifications, using gauge.
* Stops machines when screens of specified length are woven.
Industry:Professional careers
A professional who tends equipment, such as filters, settlers, and thickeners, to assist in concentrating chemical solution. Respnsibilities include:
* Turns valves and starts pumps to start flow of liquids from storage tanks through series of pans.
* Dumps sacks of chemicals into processing units.
* Patrols area to detect leaks and malfunctioning of equipment.
* Records data, such as temperature and pressure readings, and monitors gauges and recording charts to ensure safe operating conditions.
* Draws sample of product and tests for specific gravity, using hydrometer.
* Opens valves to drain and flush salt accumulations from pans and lines.
* Repacks pumps and valves and repairs equipment by adjusting or replacing parts, using handtools.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who repairs pumps of paper making machinery. Respnsibilities include:
* Examines pumps for malfunctioning and to locate damage or wear, such as blowout packing, misalignment of pump shaft, slippage of drive belt, worn bearings, or need for lubrication.
* Observes operation of pumps and feels for heat and vibration of parts to detect cause of malfunctioning.
* Dismantles pumps and performs repairs, such as cleaning impellers, repacking stuffing boxes, tightening glands, and replacing bearings, using handtools.
Industry:Professional careers
A professional who trues coiled precision springs and tests springs for conformance to specifications. Respnsibilities include:
* Places set of springs over mandrel, places metal bar over springs, and pushes against bar to compress springs to specified length.
* Positions spring over template or between poles of electronic spring checker to detect variation from standard spring length.
* Places spring on flat surface, and measures squareness of end, using gauge.
* Inserts wedge between coils and taps wedge with mallet to even pitch between coils and adjust length of spring.
Industry:Professional careers
A professional who sets up and operates one or more slide-forming machines to automatically punch, cut, and form metal strips and wire by action of opposing rams to fabricate parts, such as spring washers, brackets, and clips, specified by sketches, blueprints, and setup charts. Respnsibilities include:
* Selects cams, forming tools, and dies according to setup charts.
* Aligns and bolts specified cams to shaft, slides to bed, and forming tools and dies to slides using knowledge of machine operations, product dimensions, vernier calipers, micrometers, and gauges.
* Threads stock through stock straighteners and adjusts cams to synchronize action of slides that feed, cut off, and form part.
* Turns flywheel by hand to produce sample part and compares sample with specifications, using fixed gauges, micrometer, and calipers.
* Readjusts machine to achieve specified product dimensions.
* Starts machine and observes operation periodically gauging parts for conformance to specifications.
* Removes, replaces, and labels trays of finished parts when specified number have been produced.
* May inspect parts for defects, using shadowgraph.
* May weld ends of coils together, using butt-welding machine, to form continuous length of feed.
Industry:Professional careers
