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 …
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 …
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 …
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 …
1. Operates pebble mill to grind emery, rouge, and other abrasives and separates them according to fineness by water suspension method: Examines abrasive under microscope to determine grinding time required, and grinds abrasive in pebble mill. 2. Turns valve to allow ground particles and water to flow into agitator tank. …
1. Performs following tasks on board ship to watch for obstructions in vessel’s path and to maintain equipment and structures: Stands watch at bow or on wing of bridge to look for obstructions in path of vessel. 2. Measures depth of water in shallow or unfamiliar waters, using leadline, and …
1. Tends one of various pressing machines that join precemented shoe parts, performing any of following tasks: Turns setscrew that adjusts distance between pressure rollers, feeds aligned parts between rollers, and observes joining of parts. 2. Positions parts on machine bed and depresses pedal that forces heated presser head against …
1. Applies cement onto separate shoe parts prior to joining, performing any of following operations: Feeds parts between pressure and cementing rollers of machine and removes cemented parts. 2. Holds part against cement-covered roller or revolving brush that applies cement to part. 3. Feeds parts between rollers that move parts …
1. Tends machines that apply margin of rubber or latex cement to rubberized fabric parts used in assembling rubber footwear: Starts machine, picks up uncemented part from book, board, tray, frame, or stack and applies cement, using any of following methods: Draws edge of workpiece between preset revolving rollers, exercising …
1. Joins precemented shoe parts, or applies cement to join parts, using any of following methods: Brushes cement onto parts. 2. Sprays cement onto parts, using spray gun. 3. Rubs parts over cement-covered roller. 4. Feeds and pulls parts between cement-covered rollers. 5. May align precemented parts, following seams or …
1. Cements optical elements together to form units which have specific optical properties: Cleans elements, using solvent, tissue, brush, and compressed air device. 2. Holds elements together to verify fit. 3. Applies cement to element surfaces, using glass rod. 4. Presses and rotates elements together to remove air pockets and …
1. Tends machine that mixes synthetic or natural rubber with solvents and chemicals to produce liquid rubber cement: Weighs and measures specified amounts of rubber, chemicals, and solvents, according to mixing instructions. 2. Breaks down full batch formulas into partial batches and samples. 3. Presses buttons to activate electrically driven …
1. Casts concrete pipe sections to mold fittings, performing combination of following duties: Tamps concrete into steel molds and smooths edges, using trowel, to cast elbows, lids, or traps. 2. Places fittings on pallets or shelves to harden and adheres hardened sections to complete assembly. 3. Dips hardened sections into …
1. Attaches celluloid band to golf club shaft to anchor ends of leather grip: Bevels grip with knife to taper it to shaft. 2. Slides celluloid band onto tapered part of grip and shrinks celluloid to size, using electric heating jig. 3. Applies cement to tapered grip and cements band …
1. Tends electrolytic cells to produce chlorine, caustic soda, and hydrogen, performing any combination of following tasks under direction of CELL TENDER: Pulls and positions current jumpers, connects jumper arms on circuits, and throws switches to cut cells out of service. 2. Disconnects brine, gas, and hydrogen lines, using wrenches, …
1. Supervises and coordinates activities of workers engaged in concentrating, flaking, and drying magnesium chloride preparatory to obtaining magnesium by electrolysis. 2. Performs duties as described under SUPERVISOR Master Title.
1. Tends machines that wrap dry cells in plasticized material and insert and seal cells in paper tubes or metal sleeves, using any of following methods: Installs roll of plastic film in wrapping machine equipped with sealing unit. 2. Threads plastic film through feeding device to wrapping mechanism. 3. Starts …
1. Adjusts anodes on electrolytic cells to regulate voltage, using handtools: Attaches voltmeter wires to cell and millivoltmeter wires to anode and observes readings to determine adjustments required. 2. Loosens locknut and position nut, using wrenches, to lower anode until specified voltage reading is attained. 3. Records cell voltage readings …
1. Controls electrolytic cells to produce caustic soda, chlorine, or hydrogen to specified standards from brine solution: Regulates brine flow to cells, according to power input and strength of electrolyte. 2. Observes flow through sight glasses; reads gauges, chart recorders, and manometer; and moves controls to regulate level of cell …
1. Prepares plastics sheets for removal from glass molds, performing any combination of following duties: Pulls materials, such as cellophane, rubber tubing, or tape, from cells. 2. Unscrews clamps and pries spacing devices from cells. 3. Sorts rubber tubing according to size and stacks clamps in bin for reuse. 4. …
1. Assembles, installs, maintains, and repairs electrolytic cells, performing any combination of following duties: Starts concrete mixer and pours concrete slurry into assembled molds to cast sections of electrolytic cells, such as tops, bottoms, rings, and partitions. 2. Records data, such as condition of cell units, parts used, and date …
1. Prepares molds used in casting liquid plastics materials into sheet form: Inserts wooden or plastic wedges between sides of glass cells to widen cell opening. 2. Folds paper into funnel shape and inserts paper funnel in cell opening to provide passage for liquid plastics. 3. Records identification data on …
1. Casts concrete sections of electrolytic cells, such as tops, bottoms, collars, brine traps, and partitions, using handtools and power tools, hoist, and concrete mixer: Assembles iron molds, using hoist, and bolts sections together, using handtools. 2. Washes and scrapes molds to remove dirt, using water hose and hand scraper, …
1. Removes defective mercury electrolytic cells from rocker mechanism and installs new cells, using handtools: Removes bolts and rocker assembly that hold cell bottom in place on rocker mechanism, using wrenches. 2. Signals OVERHEAD CRANE OPERATOR to remove defective cell and position replacement cell on rocker mechanism. 3. Visually levels …
1. Inspects viscous plastics material in plate glass molds and removes defects preparatory to curing: Examines material through glass sheet to detect defects, such as air bubbles, dirt particles, and other foreign matter. 2. Stands cell on end to elevate bubbles to surface and inserts spatula between molds to remove …
