- Settore: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who operates machines to mold and cut composition rubber rollers used to coat or lithograph tinware. Respnsibilities include:
* Dumps cold rubber in melting reservoir of machine and turns steam valves to melt rubber.
* Starts agitator to stir melting rubber.
* Places core of roller in molding chamber of machine, using hoist.
* Bolts plates on ends of molding chamber, using wrench.
* Turns air valve to force melted rubber into mold, and turns water valves to cool mold.
* Removes molded roller and places it in chuck of cutting machine.
* Installs knives on cutting bar.
* Positions bar and turns crank to rotate chuck and cut circumference or end of roller.
* Replaces worn felt coverings on padding rollers.
* Slips felt jackets over roller core and sews end of felt around roll, using needle.
* Sorts and stacks rolls in rack.
* Records number and type of rolls, cores, and materials used, shipped, or received.
Industry:Professional careers
A professional who sets up and operates machines and equipment to mix, color, and mold putty, according to specifications. Respnsibilities include:
* Weighs and measures ingredients and dumps them into kettle, using power lift.
* Lowers agitators into kettle of putty mix and starts them to combine ingredients.
* Adds colored paste paints to putty mix to tint putty to desired shade.
* Withdraws sample, prepares smear, and compares it with standards.
* Lowers suction pump into kettle and pumps mix into molding-machine tank.
* Sets up and operates molding machine that forms putty into crayon-like applicators.
* Off bears product from discharge chute to boxes or storage shelves.
* Records mixing, coloring, and molding time on production records.
Industry:Professional careers
A professional who tends equipment that washes animal stock (animal skins, splits, fleshings, and trimmings) used to make glue and gelatin. Respnsibilities include:
* Turns valve to start continuous flush of water into tub to wash foreign materials from stock.
* Turns handwheel to actuate roller that kneads and turns stock in tub.
* Turns off water and roller after time necessary to reduce foreign material to required level.
* Drains water from tub and pumps specified amount of acid into tub to kill organisms in stock.
* Tests concentration of acid-sample in tub, using titration, burette, and pH indicator, and adds acid to tub when necessary.
* Drains acid from tub after prescribed time and washes stock with water.
Industry:Professional careers
A professional who operates machines to dry hypalon or neoprene rubber solution to form film, to shape film into rope, and to cut rope into chips. Respnsibilities include:
* Moves controls on panel to start rotating drum drier, pumps, and blowers, and to adjust speeds of roper machine and drier.
* Observes meters and gauges to verify pressures and temperatures of machines.
* Moves dials on automatic instruments to set and adjust level of rubber solution in drier and flow of steam through drier.
* Turns valves to regulate flow of cooling water and temperature in cooling drum.
* Threads film of rubber from drier through guiding rolls and slots of roper and through automatic cutting machine.
* Keeps production and storage records.
* Gives directions to workers in cleaning equipment, weighing, stenciling, and storing articles, filling roper chamber with talc, and in packing finished rubber chips into bags or drums.
Industry:Professional careers
A professional who tends equipment to fill cylinders and other containers with liquefied or compressed gases. Respnsibilities include:
* Changes cylinder valves with wrench, or adjusts them to prescribed tension, using torque wrench.
* Rolls cylinders onto platform scale, or positions cylinders in manifold racks manually or with chain hoist.
* Connects lines from manifold to cylinders, using wrench.
* Fills cylinders by any of following methods.:
** (1) Sets pressure gauge to specified reading and listens for buzzer indicating completion of filling.
** (2) Adjusts valves and observes gauge to fill cylinders to specified pressure.
** (3) Observes scale indicator to fill cylinders to specified weight.
** (4) Fills cylinder to excess, rolls cylinder onto scale, and connects exhaust line to release excess gas and attain prescribed gross weight.
* Sprays or brushes chemical solution onto cylinder valve to test for leaks.
* Fills out and attaches warning and identification tags or decals, specifying tare and gross weight, cylinder number, type of gas, and date filled, and records data.
* May test gas for purity, using burette or other testing equipment.
* May inspect or test empty cylinder.
* May evacuate residual gases from cylinders.
* May test filled cylinders for specified gas pressure by connecting gauge and comparing reading with chart.
* May tend and maintain generator or compressor in filling process.
* May be designated according to type of container filled as ton-container filler; tube-trailer filler.
Industry:Professional careers
A professional who weighs and examines barrels of oleoresin prior to distillation into turpentine and rosin and grades rosin prior to storage. Respnsibilities include:
* Reads scale to obtain gross weight of barrel of oleoresin.
* Examines and feels oleoresin to determine color, cleanliness, water content, and age, and estimates turpentine and rosin content and rosin grade that can be produced.
* Records estimate and weight of barrel on incoming record sheet.
* Observes distillation process and directs distiller II to stop operation of melter or still whenever temporary shortages of oleoresin occur.
* Draws rosin sample from still and grades sample according to U.S.
* Government specifications.
* Records grade and barrel number on grade record form.
* Directs or assists deckhand to push barrels of oleoresin or rosin to and from scales, storage area, and distilling equipment, and to dump barrels of oleoresin into hopper of melter.
Industry:Professional careers
A professional who controls equipment, such as coagulation tanks, soap conversion tanks, leach tanks, filters, screens, hammer mills, and pneumatic conveyors to coagulate synthetic rubber latex into rubber crumb slurry and to prepare rubber crumbs for finishing processes. Respnsibilities include:
* Turns valves, starts feed pumps, and adjusts flow-controlling and proportioning devices in supply lines to control flow of latex and of solutions to creaming and coagulating tanks.
* Adjusts recirculating pumps to control overflow of creamed latex to coagulating tank and of coagulated slurry to soap conversion tank to convert soap to fatty acid and extract fatty acid.
* Regulates tank stirring mechanisms to mix contents and controls temperatures and acid concentration by automatic recorder-controllers.
* Observes appearance of crumbs through sight glasses and regulates operation of filters, shaker screens, and hammer mills to remove moisture from and pelletize rubber crumbs for finishing processes.
* Records data on coagulation logsheets.
* May prepare brine, acid, and other solutions used.
Industry:Professional careers
A professional who controls equipment, such as coagulation tanks, soap conversion tanks, leach tanks, filters, screens, hammer mills, and pneumatic conveyors to coagulate synthetic rubber latex into rubber crumb slurry and to prepare rubber crumbs for finishing processes. Respnsibilities include:
* Turns valves, starts feed pumps, and adjusts flow-controlling and proportioning devices in supply lines to control flow of latex and of solutions to creaming and coagulating tanks.
* Adjusts recirculating pumps to control overflow of creamed latex to coagulating tank and of coagulated slurry to soap conversion tank to convert soap to fatty acid and extract fatty acid.
* Regulates tank stirring mechanisms to mix contents and controls temperatures and acid concentration by automatic recorder-controllers.
* Observes appearance of crumbs through sight glasses and regulates operation of filters, shaker screens, and hammer mills to remove moisture from and pelletize rubber crumbs for finishing processes.
* Records data on coagulation logsheets.
* May prepare brine, acid, and other solutions used.
Industry:Professional careers
A professional who controls equipment to prepare chemical solutions to meet customers' small-lot orders or special specifications, performing any combination of following tasks. Respnsibilities include:
* Starts pumps and agitators.
* Turns valves to admit and discharge chemicals to and from process vessels and to weigh tanks.
* Observes scales and stops pumps when required weight is attained.
* Mixes chemicals, according to proportion tables and prescribed formulas, in reaction vessel, and turns steam valves or sets thermostat to heat vessel to specified temperature.
* Mixes prepared materials with precipitants to produce slurry in dissolving and precipitating tanks.
Industry:Professional careers
A professional who tests rolls of cellophane for conformance with specified winding tension. Respnsibilities include:
* Slides roll onto shaft of testing frame.
* Threads film from roll around rewind and tension rollers and turns setscrews to secure cellophane to clip on sliding bar.
* Turns handwheels to move sliding bar that pulls cellophane predetermined distance from roll and to press tension roller against film to apply specified tension.
* Reads rule gauge to measure slack in film between rewind roller and sliding bar.
* Cuts cellophane from roll, using knife.
* Records number and width of tested roll, amount of tension applied, and degree of slack.
* May examine cellophane for defects such as discoloration, wrinkles, scratches, and holes.
Industry:Professional careers
