- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends chiller and centrifugal drier that crystallize diluted caustic soda solution and remove liquid from crystallized product. Respnsibilities include:
* Starts pump to transfer caustic soda solution and water into dilution tank and determines specific gravity of diluted solution, using hydrometer.
* Pumps solution through refrigerating unit and into chiller.
* Observes consistency of crystallized slurry flowing from chiller to centrifuge, and turns valves to regulate feed rate and maintain slurry at specified consistency.
* Tends centrifugal drier to remove liquid component of slurry.
* May turn valve to heat centrifuge unit if machine is so equipped.
* Inspects feed and outlet pipes of equipment and flushes lines, using hose, to prevent clogging.
Industry:Professional careers
A professional who tends tape-controlled turret or hydraulic-powered punch press that automatically positions indexing table, selects punch, and punches holes, or layout marks in metal sheets, plates, strips, or bars. Respnsibilities include:
* Positions and clamps workpiece against fixtures or to specified point on built-in scale.
* Threads tape through electronic reader to specified position.
* Starts machine and observes operation.
* May verify first piece, using rule and plug gauges.
* May open chucks, using wrench to replace worn or broken punches and dies.
Industry:Professional careers
A professional who repairs or replaces damaged parts of underground mine cars. Respnsibilities include:
* Welds, straightens, bolts, rivets, and refits parts, such as axles, wheels, bodies, and couplings, using hoists, jacks, handtools, power tools, and machine shop equipment.
* Makes new parts, such as body framework and undercarriages, using welding equipment.
* May examine mine car for defects and be designated Car Inspector (mine & quarry).
Industry:Professional careers
A professional who installs and adjusts rolls on sizing, forming, and welding mill to produce pipe or tube of specified outside diameter, following job specifications and using handtools. Respnsibilities include:
* Reads mill schedule to determine size of product to be produced.
* Selects rolls and installs rolls on mill, using handtools.
* Signals overhead crane operator to remove previous sizing mill from rolling line and position replacement mill on line.
* Sets and adjusts bolts to position rolls on mill, using wrenches and bars.
* Sets controls to regulate speed of mill.
* Measures outside diameter of product to determine conformance to specifications, using calipers.
* Adjusts rolls on mill to obtain product of specified dimensions, using handtools.
* Disassembles sizing mills removed from rolling line and stores parts.
Industry:Professional careers
A professional who performs following duties in rolling nonferrous metal ingots and bars into plates, sheets, rods, and coils. Respnsibilities include:
* Guides or turns metal rods or ingots on conveyors or tables to, from, and through rolls of rod rolling machines, using tongs or automatic handling devices.
* Feeds sheets or plates into carriage or table of rolling machines.
* Cuts jagged edges from sheet, using hand or machine shears and flattens leading edge of sheet with mallet or machine flattener.
* Tends equipment to return metal to entry side of mill for rerolling, to feed or off bear coils of metal, to hoist coil on machine spindle, pierce coil to raise end of coil and extend it into rollers of mill, and to remove rolled coil from machine.
* Clears cobbles (jams), using pry bar, and adjusts guides, using handtools.
* Observes rolled metal for defects, such as tears and cracks.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who operates hoop-bending machine to bend and shape iron rods into hoops for wooden tanks. Respnsibilities include:
* Loosens nut of adjusting block and positions roller to obtain specified diameter of hoop.
* Starts machine and inserts end of rod through feed rollers of machine and over bending roller.
* Strikes end of rod with wooden maul to start rod over roll.
* Turns handcrank of feed roller to force rod through machine, bending rod into semicircular or circular shape.
* Removes bent rod from machine and stacks rod on floor.
Industry:Professional careers
A professional who replaces plugs used to form inside diameter of seamless tubing in rolling mill machines. Respnsibilities include:
* Screws specified plug on end of rolling-mill mandrel with tongs or positions plug in trough of rolling mill, using hoist, preparatory to forming tube.
* Removes hot plug with tongs or hoist after tube has been rolled.
* Immerses hot plug in bosh tank for cooling.
* Moves controls to charge and discharge pipe shells from reheating furnace.
Industry:Professional careers
A professional who assists outside machinist in installing ship machinery, such as motors, pumps, ventilating equipment and steering gear. Respnsibilities include:
* Drills holes in foundations in specified places for anchoring machinery, using portable, powered drills.
* Assists in moving and leveling machinery, using portable jacks, as directed.
* Bolts equipment to deck and attaches fuel, cooling, or lubricating lines as directed, using handtools.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who operates hydraulic press that forces hard steel hob into soft steel block to form molding die. Respnsibilities include:
* Receives premarked soft steel block and specified hob from set-up worker.
* Places block in retainer ring of press and positions hob on block.
* Places plug block over hob to hold hob in alignment.
* Turns handwheel to raise ram which holds block and hob in place.
* Starts pumps to build up prescribed hydraulic pressure.
* Pulls lever to exert pressure on ram which embeds hob in soft block to specified depth, forming impression die.
* Removes block manually and clamps it in vise.
* Taps block with hammer to loosen hob and removes it from block.
* Inspects die for defects, such as rips or flaws, using magnifying glasses.
Industry:Professional careers
A professional who repairs and maintains braking devices on railroad tracks leading into yard of terminal to ensure specified performance of braking device, using handtools. Respnsibilities include:
* Gathers specified tools, such as gauges, grease gun, and handtools, required to complete work assignment, such as greasing fittings or replacing brake shoes.
* Adjusts and measures distances between brake shoes to specified standards, using handtools, gauge, and steel rule.
* Removes bolts, screws, and metal plates to access parts of braking device, following blueprints.
* Examines broken device to isolate defect or verify repairs needed.
* Removes designated part, places new part in braking device and adjusts fit to ensure accurate placement, working as member of team.
* Replaces bolts, screws, and metal plates, using hand and pneumatic tools.
* Inspects braking device for conformance to standards.
* Greases fittings of braking device to maintain and prevent excessive wear of parts.
* Loosens and lifts braking device from rail, using handtools and crane, and replaces broken or deteriorated track beams, working as member of team.
Industry:Professional careers
