| Job Title |
Clamper |
| Job Description |
Operates Clamp (rotary Press) To Transfer Designs From
Engraved Dies To Mills Used In Transferring Designs To Copper
Printing Rollers: Positions Die In Fixtures On Bed Of Clamp.
Mounts Mill Over Die And Turns Handwheel To Lower Head Of Clamp
Against Journals Of Mill, Forcing Mill Against Die. Rotates Die
Specified Number Of Times Equal To Number Of Times Design Is To
Repeat Around Circumference Of Mill. Examines Impression Of
Design On Mill And Determines From Gap Left Between Ends Of
Impression Amount Reduction Required In Circumference Of Mill.
Starts Machine That Turns Die Against Mill To Produce
Indentations On Mill. Spreads Acid-resistant Wax Over Surface Of
Mill And Gradually Increases Pressure On Head Of Clamp As Die
Turns Against Mill, Working Wax Away From Area Of Mill
Corresponding To Unengraved Area Of Die. Removes Mill From Clamp
And Spins Mill In Acid Bath To Etch Waxfree Area Of Mill,
Leaving Waxed Area Of Mill In Relief. Offsets Head Of Clamp And
Works Die Against Mill To Round Off End Of Design And Make
Surface Of Mill Oval To Facilitate Transfer Of Design From Mill
To Surface Of Copper Printing Roller. Examines Raised Design On
Mill Through Magnifying Lens To Verify Sharpness Of Lines.
Inserts Mill In Heat-treating Pot, Fills Pot With
Carbon-activated Bonemeal, And Places Pot In Electric Furnace.
Turns Thermostat To Set Temperature Of Furnace According To Type
Of Steel. Removes Mill From Furnace At End Of Heating Cycle,
Using Tongs, And Dips Mill Into Brine Solution To Harden And
Temper Steel. Cleans Mill With Wire Brush. May Operate Engine
Lathe To Reduce Diameter Of Mill Or To Turn Raised Indentations
Off Ends Of Mill [engine-lathe Set-up Operator (machine Shop)].
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