1. Tends machine that mixes powdered rouge and water to make polishing paste for lens blanks: Dumps specified amount of rouge into mixing tank and meters prescribed amount of water into tank. 2. Starts agitator and allows ingredients to mix for prescribed time. 3. Draws off sample and tests for …
1. Tends machines that sift and mill powdered rouge for use in polishing lenses: Loads hopper of sifter with rouge powder and starts machine to separate coarse from fine particles. 2. Fabricates paste for polishing lenses.
1. Opens holes in jewels by drawing tapered wire through holes by hand: Strings inch-long row of jewels on wire. 2. Inserts row in space between holders in center of holding tool and pulls wire back and forth through center openings to wear away inside diameter. 3. Applies diamond dust …
1. Operates machine equipped with opposing circular blades to shear metal plates and sheets to specified circular and curved dimensions: Turns thumbscrew to adjust distance between cutters to thickness of metal, using feeler gauge, scale, or pattern. 2. Positions and clamps workpiece to turntable and sets specified distance between center …
1. Makes ready and operates rotary-type press that prints illustrative and other subject matter by rotogravure process: Installs engraved copper printing cylinder in press, using handtools. 2. Adjusts doctor blade to remove excess ink from surface of printing cylinder. 3. Threads web of paper or other printing stock through press, …
1. Assembles rotors used in electric timer motors, using glue dispenser and die: Places rotor disk in die attached to conveyor. 2. Positions rotor shaft, with hub attached, through hole of rotor disk. 3. Presses tip of pencil-shaped glue dispenser against hub of rotor shaft and rotor disk to join …
1. Sets up and operates die press, using demountable dies to cast motor and generator rotors: Stacks rotor core laminations and mounts them over keyed mandrel secured to die base of casting machine. 2. Verifies skew of core slots, using fixed gauge and places die shell and top plate over …
1. Tends rotary furnace that roasts sulfur or other materials to liberate gases for use in processing chemical products: Weighs materials to be roasted and scoops or dumps specified quantity into furnace hopper. 2. Starts revolution of furnace, consisting of hollow cylinder mounted between power-driven rollers. 3. Observes thermometer and …
1. Sets up and operates vertical milling machine with spindle mounted within larger rotary head so that rotating cutter can move anywhere within given circle to mill complex shapes, such as arcs and tangents, without changing position of workpiece or machine table. 2. Computes dimensions of shapes to be milled …
1. Operates gasoline, natural gas, or diesel engines to supply power for rotary oil well drilling machinery: Starts engines and observes drilling operations to provide power under operating conditions. 2. Assembles and dismantles pumps and other drilling equipment, using handtools. 3. Loosens and tightens threaded sections of drill pipe and …
1. Operates rotary screen-printing machine to print designs on textiles: Mounts screen-printing rollers in specified sequence on machine. 2. Turns knob to set machine speed and adjust pressure of rollers, according to type of design and cloth being printed. 3. Turns valves that automatically admit printing paste into rollers. 4. …
1. Assists ROTARY DRILLER in operating machinery to drill oil or gas wells, using handtools and power tongs and wrenches: Assembles and disassembles casings and pipe sections, using hand and power wrenches and tongs. 2. Sets curved metal wedges around pipe string at wellhead to prevent string from falling into …
1. Rigs derrick equipment and operates pumps to circulate mud through drill hole: Sets and bolts crown block to posts at top of derrick. 2. Strings cables through pulleys and blocks. 3. Clamps holding fixture on end of hoisting cable. 4. Weighs clay, and mixes drilling mud, using portable power …
1. Operates gasoline, diesel, electric, or steam draw works to drill oil or gas wells: Observes pressure gauge and moves throttles and levers to control speed of rotary table which rotates string of tools in borehole, and to regulate pressure of tools at bottom of borehole. 2. Connects sections of …
1. Performs any combination of following tasks in slitting paper: Places shaft in core of paper roll, using jack lift. 2. Lifts roll onto feed cutter rack, using hoist, and fastens collars on shaft with wrench to secure roll in position. 3. Positions layboy guide stops and stacking paddles to …
1. Tends machine that pulverizes scrap fabric into flock: Cuts wire from bale of scrap, using wirecutters. 2. Starts machine and dumps and spreads scrap on conveyor that moves scrap to rotary knives turning within fixed knives that pulverize scrap. 3. Clamps sack over blower pipe and opens valve to …
1. Feeds crystalline or granular materials to conveyor system or feed hopper of rotary driers for drying: Starts feed conveyor and shovels material onto moving belt, or adjusts controls of conveyor or feed hopper to regulate automatic feed according to instructions from equipment operator. 2. May be designated according to …
1. Tends machine, consisting of series of subdivided tanks, that coats cloth with silicate or other chemical solution to strengthen and fluff cloth: Starts pumps to transfer chemicals and water into mixing tank above machine. 2. Determines specific gravity of solution, using hydrometer, and adds chemicals or water until required …
1. Fills barrels with rosin: Places pipe through opening in barrel head to direct flow of rosin. 2. Hammers hoops down on barrel to tighten staves. 3. Seals leaks in barrels, using clay.
1. Tends machine that cuts leather into blockers: Installs cutting disks in machine, using wrenches. 2. Places leather on cutting bed, smooths out wrinkles, and positions leather according to shape of piece and pattern of grain. 3. Trims offal from leather, using knife. 4. Starts machine and guides leather over …
1. Tends former machine that twists strands of asbestos roving to form wick, and rope-twisting machine that twists strands of wick to form rope: Creels spools of asbestos roving or wick on machines and threads material through guides, flyer, and around winding spindles. 2. Starts machines and observes twisting to …
1. Tends one or more machines that lay fiber strands or twine into rope and wind rope onto reels: Selects and mounts reels of ready or twine on machine according to rope size specified, using hoist. 2. Threads strands or twine from reels through guides to twisting mechanism, and splices …
1. Sets up and maintains battery of automatic machines that make hemp rope: Installs and aligns dies and gears to produce specified type and size rope, using handtools. 2. Turns setscrews to adjust machines. 3. May operate and adjust rope-laying machine to make rope.
1. Operates track-mounted machine in ropewalk to lay rope-fiber strands into heavy line, such as marine hawser and towline: Lays strands on guide arms parallel to track. 2. Anchors ends of strands to stationary fixture at end of ropewalk. 3. Secures other end of strands in self-propelled machine at opposite …
