Job Description: 1) Tends mixing machine, autoclave, and drier to mix, pack, solidify, and dry asbestos, dirt, charcoal, lime, water, and other ingredients to form absorbent packing for compressed acetylene gas: Meters out water and powdered ingredients, and dumps them into mixer. 2) Starts agitator to mix ingredients for specified period of time. 3) Opens […]
ACETYLENE-CYLINDER-PACKING MIXER Read More »
Job Description: 1) Tends equipment to recover acetone, used in acetate rayon manufacture, from vapor produced by dry spinning of rayon filaments: Turns valves to admit vaporized acetone from spinning units to recovery system and to maintain cooling coils in condenser at specified temperature for efficient acetone recovery. 2) May pump recovered acetone to storage
ACETONE-RECOVERY WORKER Read More »
Job Description: 1) Controls operation of particle accelerator used in research experiments involving properties of subatomic particles: Reviews experiment schedule to ascertain particle beam parameters specified by experimenter, such as energy, intensity, and repetition rate. 2) Communicates with accelerator maintenance personnel to ensure readiness of support systems, such as vacuum, water cooling, and radiofrequency power
ACCELERATOR OPERATOR Read More »
Job Description: 1) Assists ABRASIVE MIXER in mixing ingredients to form polishing and buffing compounds by performing any of following duties: Dumps specified ingredients in mixing machine. 2) Turns valve to drain finished mix from machine. 3) Transports supplies and products between plant locations, using handtruck. 4) Performs other duties as described under HELPER Master
ABRASIVE-MIXER HELPER Read More »
Job Description: 1) Dumps abrasives into pebble mill, connects hose from mill to agitator tank, and shovels graded abrasives from vats. 2) . 3) Dumps specified abrasive, such as flint, garnet, emery, or corundum into container on machine.
ABRASIVE-GRADER HELPER Read More »
Job Description: 1) Sets up and operates machine to coat cloth, fiber, or paper with granules of abrasive material: Positions machine guides and stops on machine bed according to size of base material, using rule or template. 2) Turns screws to adjust valve openings to regulate thickness of abrasive coating sprinkled on base material. 3)
ABRASIVE-COATING-MACHINE OPERATOR Read More »
Job Description: 1) Tends machine equipped with circular diamond saw that cuts abrasive sticks and stones for honing machines: Places abrasive bricks against guide and clamps bricks onto holding fixture of machine. 2) Starts machine and flow of coolant. 3) Presses button to start feed mechanism that moves brick against diamond saw to cut abrasive
Job Description: 1) Tends electrically powered or hand-cranked band-winding machine that joins and shapes precut backing strip with abrasive-coated strip by spirally winding strips on mandrel to produce grinding and polishing tubes or cones: Applies adhesive to backing strip by handbrush or by automatic applicator attached to winding machine. 2) Clips ends of backing strip
ABRASIVE-BAND WINDER Read More »
Job Description: 1) Tends machine that mixes abrasive compounds for use in making polishing and buffing wheels, and hones: Calculates amount of grit, clay, and adhesive required according to formulas. 2) Weighs out ingredients, dumps ingredients into mixing machine, and starts mixing machine. 3) Feels mixture and adds water and resins until specified consistency is
Job Description: 1) Tends machine that faces and grinds specified radii on abrasives: Sets machine guides to regulate angle of feed of abrasive to grinder. 2) Places abrasive in fixture and manually feeds abrasive to grinding wheel, or starts machine that automatically feeds abrasive against grinder. 3) Inspects abrasives for conformance to specifications, using fixed