- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who sets up automatic machine to fill small arms cartridge cases with powder and insert bullets. Responsibilities include:
* Installs machine parts, such as shell and bullet dials, carriers, punches, crimping die, and powder charge regulator, to accommodate designated size and type of cartridge to be filled, using handtools.
* Turns setscrews or nuts to adjust and synchronize mechanisms.
* Cleans machine and lubricates moving parts.
* Polishes punches and dies to remove scratches or adhering brass, using bench grinder and emery cloth.
* Disassembles machine or parts to remove jammed cartridges and to replace worn or broken parts.
* Tests sample of cartridges for pullout of bullets and weighs powder load, using pull-test machine and gram scale.
* Records test results.
* Gives instructions to new workers in operation of machines and use of gauges.
Industry:Professional careers
A professional who sets up and maintains in operation automatic machines that insert explosive primers in cartridge cases. Responsibilities include:
* Installs and adjusts punches, dies, and feed fingers, and regulates feeding and ejection mechanisms, using handtools and gauges.
* Frees jams and replaces worn or broken parts.
* Polishes steel punches and feed fingers to remove burrs, scratches, or adhering brass, using speed lathe and emery cloth.
* May feed plates or boards of primers into machine hoppers.
* May instruct new workers in machine operation and use of gauges.
Industry:Professional careers
A professional who adjusts roller, chain, or belt conveyors that convey small arms ammunition or components past inspectors. Responsibilities include:
* Turns stop nuts and setscrews to align tubes, channels, or fingers which transfer workpieces from hopper to carrier, using handtools.
* Bends and hammers discharge chutes into position.
* Turns adjustment knob of drive motor or shifting belt to different pulley to change speed of conveyor.
* Tightens belts by extending tension wheel.
* Replaces mirrors that enable inspector to see both ends of cartridges.
* Removes cartridges jammed in feed or discharge channels, using wire tools.
Industry:Professional careers
A professional who sets up series of machines to load platefuls of small arms cartridges with powder and bullets. Responsibilities include:
* Changes setting screws on eccentric arm of shakers to adjust length of stroke of shaker table according to caliber and style of cartridge and bullet processed.
* Installs powder volume plate in loading unit and inserts blocks of punches and collets in presses to seat and crimp bullets, using handtools.
* Turns setscrews, stop nuts, and turnbuckles to adjust, by trial and error, side guides, backstops, conveyor fingers, and stroke of press gates, using height gauges.
* Distributes plates to each work station according to work requirements.
* Empties powder from volume plate into tray and weighs it, dividing by number of cartridges in plate to determine if total load and average per cartridge are within weights specified.
* Changes volume plate for one with larger or smaller cavities until total and average loads meet specifications.
* Observes unit in operation to detect malfunctioning.
* Starts machine to load plate of cartridges and sends samples to ballistics laboratory for approval before releasing unit to operating crew.
Industry:Professional careers
A professional who sets up dial-feed machine to daub and spray lacquer to base and mouth of cartridge cases to form waterproof seal around primer and bullet. Responsibilities include:
* Aligns and adjusts feeding, lacquering, blotting, and ejecting mechanisms, and installs reels of blotting-paper tape, using handtools.
* Thins lacquer with acetate to desired consistency and pours it into machine reservoirs.
* Measures drain time of sample mixture to verify conformance to specified viscosity, using electric timer.
* Drains and flushes reservoirs and feed tubes to prevent clogging, using thinner.
Industry:Professional careers
A professional who sets up dial-feed machine to daub and spray lacquer to base and mouth of cartridge cases to form waterproof seal around primer and bullet. Responsibilities include:
* Aligns and adjusts feeding, lacquering, blotting, and ejecting mechanisms, and installs reels of blotting-paper tape, using handtools.
* Thins lacquer with acetate to desired consistency and pours it into machine reservoirs.
* Measures drain time of sample mixture to verify conformance to specified viscosity, using electric timer.
* Drains and flushes reservoirs and feed tubes to prevent clogging, using thinner.
Industry:Professional careers
A professional who sets up automatic machines to fill head cavity of rim-fire cartridge cases with explosive priming mixture. Responsibilities include:
* Installs and aligns knockout pins, primer-spreading punches, and shell-holding blocks, using handtools and gauges.
* Sets stops and cams to synchronize movements of feeding screws and rolls, shell-holding fingers, and ejection mechanism.
* Starts machine and examines primed cartridge cases for defects, such as dents, scratches, or unfilled head cavities.
* Cleans priming mixture from tools and machine bed, using air blast or vacuum hose.
* Dismantles machine to replace worn or broken parts.
Industry:Professional careers
A professional who sets up machine to waterproof center-fire cartridges with varnish or lacquer. Responsibilities include:
* Selects varnishing plates with pins of specified diameter to accommodate caliber of cartridge to be processed and screws into plate holders.
* Hammers out and replaces broken, bent, or loose pins.
* Turns setscrews, stop nuts, and limit pins to adjust height and speed of varnishing machine, using handtools.
* Mixes varnish or lacquer and thinner in reservoir to obtain waterproofing solution of specified viscosity.
* Examines samples of varnished cartridges to determine whether coating is sufficient to waterproof them.
Industry:Professional careers
A professional who adjusts interconnecting control mechanisms of gun to synchronize gun with gunners sight (telescope or range finder) and fire control computer. Responsibilities include:
* Lifts gun to work stand, using hoist, and connects electrical and hydraulic lines to power sources.
* Inserts borescope in muzzle of gun, and telescope and level in breech.
* Moves controls to level position of gun.
* Adjusts gunners quadrant to synchronize quadrant with gun at level position.
* Sets eccentrics within control mechanism in position level with gun and quadrant.
* Bolts control arm of ballistics computer to sighting adjustment controls.
* Sights through range finder and moves controls to align cross hairs of range finder on specified target.
* Looks through borescope in gun to verify alignment of gun bore on target.
* Adjusts eccentrics, and controls to regulate flow of electrical impulse into control instruments, to align gun and sight on specified target.
Industry:Professional careers
A professional who examines working parts of guns used in testing ammunition to determine that they are in satisfactory condition to be used for making tests.
* Examines bore, cartridge chamber, firing-pin hole, and other parts related to functional operation of gun, using precision measuring instruments.
* Inspects bore of gun for defects, such as scratches, pits, and corrosion, using illuminated periscope.
* Tests operation of gun for satisfactory action.
* May assist gunsmith in adjusting test arms.
Industry:Professional careers
