- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who sets up and operates lens generating machine to grind ophthalmic and optical element blanks, such as lenses, prisms, and optical flats, to specified curvature and thickness. Responsibilities include:
* Reads work orders, sketch, or blueprint to ascertain grinding specifications.
* Selects specified size holding tool or fabricates tool to fit optic blank.
* Presses blank into holding tool and mounts tool in generator.
* Selects specified diamond grinding wheel and secures wheel on generator spindle.
* Adjusts generator controls to regulate rotation speed of tool and blank, rate of feed, angle of arc, and depth of cut.
* Positions coolant nozzle over blank and starts generator to grind blank to specified curvature and thickness.
* Observes generator operation.
* Stops generator after specified time lapse and measures optic blank to verify curvature and thickness, using precision measuring instruments, such as dial gauge, spherometer, and micrometer.
* May utilize pitch or vacuum holding device to secure blank on holding tool.
* May move generator controls manually to grind blank.
* May operate surface grinder or milling machine to generate optical surfaces.
* May be designated according to type lens ground as cataract-lens generator; eyeglass-lens generator; instrument-lens generator; multifocal-button generator.
* May operate lens generator to remove scratches and true surface of lens and be designated truer.
Industry:Professional careers
A professional who cuts notches in key blanks to duplicate notches of original key, using key-duplicating machine. Responsibilities include:
* Selects key blank according to size, shape, or code number of original key.
* Positions original key and blank in vises on carriage of machine and against guides.
* Turns thumbscrews to secure key and blank in vises.
* Starts cutting disk of machine.
* Pushes and pulls horizontally moving carriage of machine to slide notched edge of original key against stationary guide on machine and to move key blank against cutting disk, duplicating notches of original key in bit of blank.
* Turns thumbscrews and removes keys from vises.
* Presses and holds duplicated key against revolving wire wheel to remove burrs from key.
* Positions one key on top of another to compare notches of keys.
* May collect payment from customer and make change.
* May sell key holders or related novelty items.
Industry:Professional careers
A professional who assists meter repairer in installing, adjusting, and repairing volumetrical gas, oil, or water meters. Responsibilities include:
* Disconnects meters with wrench and loads meters in truck.
* Disassembles meters, using handtools.
* Cleans parts, using solvents and wiping rags.
* Replaces defective parts and reassembles meters, using handtools.
* Connects meters to testing apparatus for inspection and adjustment by meter repairer.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who makes parts for and assembles prototypes of metal furniture according to specifications to test practicality of new designs. Responsibilities include:
* Lays out and marks parts, following blueprints, sketches, and verbal instructions, using calipers and scribers.
* Cuts and forms parts from metal, such as steel and aluminum, using lathe, power saw, snips, and handtools.
* Joins parts, using screwdriver, wrench, and welding torch.
* May alter design of finished model according to revised specifications.
Industry:Professional careers
A professional who assembles components of cameras, camera magazines, camera shutters, movie projectors, and electronic photographic apparatus, such as exposure meters, using electric riveting press, punch press, soldering iron, and handtools. Responsibilities include:
* Screws, rivets, solders, and otherwise fastens and installs parts, following blueprints.
* Operates assemblies to test for specified functioning and adjusts mechanisms to attain specified functioning, using handtools, gauges, and meters.
* May be designated according to type of apparatus assembled as camera assembler; meter assembler; projector assembler; or according to part assembled as synchro assembler.
Industry:Professional careers
A professional who sets up and operates automatic machine to cut and size lead wire into bullet cores, fit cores into steel jackets, and shape nose and base of bullets according to specifications. Responsibilities include:
* Installs and aligns dies and cutting tools and adjusts pressure and depth of stroke of cutting mechanism according to specifications, using handtools and gauges.
* Threads lead wire through machine guides and pulleys.
* Starts machine to obtain sample bullet and to verify machine setup.
* Examines bullets for defects and conformance to specifications, using gauges.
Industry:Professional careers
A professional who removes gold dust and chips that adhere to plastic sheets, during hammering process. Responsibilities include:
* Inserts plastic sheets in opening of glass enclosure and under compressed airhose that blows gold dust and chips from sheets.
* Stacks cleaned sheets on worktable for reuse.
Industry:Professional careers
A professional who inspects poise of watch balance wheels to determine if mass of wheel is equally distributed around balance wheel staff, using poising tools and loupe. Responsibilities include:
* Mounts wheel in poising tool that supports staff on knife edges as wheel is rotated in channel, using tweezers.
* Observes rotating wheel to verify evenness of turning, using loupe.
* Removes screw from uneven or heavy area of wheel and mills screw to decrease weight, using hand milling tool.
* Rejects and segregates units if balance wheels are out of poise or if general condition of unit does not meet specifications.
Industry:Professional careers
A professional who forms wax bite blocks and impression trays used by dentist to take impressions of patients' teeth and adjacent portions of jaw, using molding equipment and handtools. Responsibilities include:
* Softens plastic or shellac wafer shaped material, using heated press or gas burner.
* Spreads and shapes wafer over model of preliminary impression to form tray, using flat-bladed molding tool.
* Imbeds metal strip in soft material for convenience in handling.
* Presses soft wax over plaster model of denture to form bite block.
* Trims excess wax from mold and smooths surface, using knife, spatula, and gas burner.
* Immerses mold in water to harden wax.
* Trims and smooths edges and surfaces of trays and bite blocks, using bench lathe equipped with grinding and buffing wheels.
* Rubs finished piece with cotton to obtain lustrous finish.
Industry:Professional careers
A professional who repairs metal phonograph record mother (matrix). Responsibilities include:
* Examines matrix to locate inspection markings that indicate defects, using microscope or magnifying glass.
* Removes defects, such as bubbles, dirt, and particles of nickel in sound track grooves, using needles and cloths moistened with solvents.
* Wipes surface of matrix with cleaning solvent to remove inspection markings.
Industry:Professional careers
