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Narrator:
Today on "How it's made"...
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Drill bits...
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...Photo booths...
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00:00:38,724 --> 00:00:40,793
...And stamps.
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Drill bits are attachments
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You fasten to drilling tools.
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A taper-point drill
Narrows to a point
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00:00:58,137 --> 00:01:00,310
So the threads of the screw
Grab the wood.
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A countersink makes the top
Of the hole the same diameter
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As the screw head
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So that the head lies flush
Or below the surface.
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A plug cutter removes
A round piece of wood
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With which you plug
The hole afterward
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To hide the sunken screw.
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Countersinks and plug cutters
Start out as steel bars.
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To make a countersink,
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This computer-guided
Tooling machine
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Uses what's called
A center drill
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To pierce a starting hole,
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Then switches to its main drill,
Which bores right through.
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Next, it uses what's called
A rough turning tool
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To shape the countersink's
Angled nose, then its body.
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The machine now switches
To a milling cutter.
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This tool shapes
The countersink's four blades.
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A cross-drilling tool bores
A hole for the two screws
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That'll hold the countersink
To the drill.
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A tap cuts threads
Into the hole.
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Next, a tool called a dovetail
Cutter sharpens the blades.
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Then, finally, a cutoff blade
Removes the tool.
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The same machine
Makes plug cutters.
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Its center drill
Makes a starting hole,
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But this time, the main drill
Doesn't bore right through.
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It stops at the depth that the
Plug cutter is designed to cut.
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Just as before, the rough
Turning tool shapes the body,
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And the milling cutter
Sculpts the four blades.
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Some plug cutters on the market
Have fewer blades.
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This company makes four
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So the cutter will clear
The wood chips more efficiently
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When it tunnels into the wood.
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After the dovetail cutter
Sharpens the blades,
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A tool called a boring bar
Refines the hole in the center,
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Making it the proper size.
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Another turning tool
Now forms the shank,
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The stem of the plug cutter
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That you insert
Into the power tool.
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Then the cutoff blade
Slices the tool off.
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Now for some manual touch-ups.
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First, they grind the plug
Cutter against an abrasive wheel
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To remove excess metal
From the cutoff.
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Then they do what's called
Side-chipping,
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Grinding the sides of each blade
To a particular shape
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That'll clear the wood chips.
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Here's how the plug cutter looks
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Before and after grinding off
The excess
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And before and after
Side-chipping.
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And now for making the drills
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To which the countersinks
Attach.
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It all starts
With a tapered piece of steel
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Because this will become
A taper-point drill.
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Straight drills begin
With a straight piece.
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A mechanical arm inserts this
Drill blank, as it's called,
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Into a computer-guided grinder.
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The machine has two wheels
Made of boron nitrite granules,
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A natural material that's tough
And abrasive.
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The first wheel
Shapes the smooth blank
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Into lengthwise spirals
Called flutes.
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A second wheel then grinds sharp
Cutting edges on the flutes
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And shapes the tip of the drill
To a point.
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Back to the countersinks now.
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The steel is still
Relatively malleable,
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So a worker runs each one
Through a stamping machine
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That imprints the size of
The tool and the company name.
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Whereas the drills are made
Of a different type of steel
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That's already hard enough,
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The countersinks
And plug cutters
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Must undergo a heat-treating
Process to harden --
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About 20 minutes in a fiery oven
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Along with a secret recipe
Of chemicals.
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The intense heat --
1,750 degrees fahrenheit --
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Transforms those chemicals
Into gases
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Which then permeate
And harden the steel.
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After cooling in warm water
And oil for about 15 minutes,
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Workers submerge the tools
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In an industrial-strength
Cleaning solution
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That removes all the oil grit,
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Then a bath in acid
To remove soot from the oven.
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Then, finally, 20 minutes
In a blackening solution,
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The ingredients of which
Are, again,
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A closely guarded
Company secret.
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This last step
Is purely cosmetic.
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So, how do the three drill bits
We've seen all work together?
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First, you use the plug cutter
To make the plug.
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Then you pop out the plug
With a screwdriver.
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Next, mounting the countersink,
That black tool,
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Onto the taper-point drill.
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You drill a hole for the screw.
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Then you drive the screw
Into the hole,
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Sinking it below the surface.
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Then you cap the hole
With a plug.
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These tools come in an extensive
Range of sizes and grades
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For both amateur
And professional woodworkers
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And for industrial machines.
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Narrator: photo booths were
First introduced in the 1920s
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In the united states.
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Today, the small, private cabins
Still enable us to be kooky
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In several snapshots
Or one large picture.
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The booths are quaint reminders
Of our pop culture,
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But they use the latest
Technology
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To make portraits
Worth treasuring.
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This model simulates a painting
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Or a drawing based on the photo
It takes of you.
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To customize
The preassembled cabin,
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A worker applies stickers
To the outside.
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These advertise local businesses
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Or the booth's
Eventual location,
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Such as a shopping mall
Or amusement park.
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Inside, there are five shelves
For equipment.
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Two layers of plexiglass
Glued together
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Will act as safety glass,
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Protecting the equipment
From vandals.
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It fits over an opening
In the wall
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That divides the seating area
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From the camera
And a tv monitor.
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The worker installs a metal
Plate in another opening.
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It will cover the coin acceptor
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And give the booth operator
Access to the money
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People pay to have
Their photo taken.
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The coin acceptor
Attaches to brackets
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On the back of the door.
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They'll program it to accept
Tokens or specific currencies.
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A black-and-white photo
Usually costs $3.
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Color is $5.
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This 15-watt bulb provides
Some light for your photo.
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It goes in a panel
That fits into the wall.
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Next, a motorized tripod
To hold the camera.
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In this model,
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They use a digital camera
With an 8-millimeter lens.
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"Up" and "Down" buttons
On the control panel
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Adjust the camera angle.
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A computerized voice
From a speaker
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Will prompt you
To make selections.
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A fan attaches to the ceiling
To vent the cabin
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And keep the equipment
From overheating.
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And two 40-watt
Florescent lights
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Will provide most of the frontal
Lighting for the subject.
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Another 15-watt light
Behind a frosted panel
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Provides some diffuse light.
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The booth's power panel
Has connections
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For up to 19 pieces
Of equipment.
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Here, a worker plugs
In the camera...
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Then a tv monitor...
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And an ink-jet printer.
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Software will process
The photos,
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And the printer will print them
On photo-quality paper.
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A plexiglass window
Protects the 15-inch monitor
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That's used for viewing
And making selections.
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Two other monitors
Fit in windowed panels
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On the outside of the cabin.
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The monitors all connect
To the computer
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And show the same images
At the same time,
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Including what stage of
Development your picture is at.
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They install a dispenser
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That sells optional cardboard
Frames for your portrait.
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Money from these sales
Falls through a slot
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Into a metal coin box
Inside the cabin.
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The dispenser holds
Up to 100 cardboard frames,
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Each large enough to hold
One portrait
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Measuring 8 by 11 inches.
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If the dispenser is out,
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A sign reading "Out of frames"
Drops into the tray.
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For security,
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The two doors
Enclosing the equipment
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Each have two key locks,
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One at the top
And one at the bottom.
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The worker installs four signs
On the cabin roof.
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They're plexiglass boxes
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With vinyl posters
And florescent lights.
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The cabin's curtain lets you
Make goofy faces in private,
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00:10:07,413 --> 00:10:10,344
But is short enough to let
People know you're in there.
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00:10:12,517 --> 00:10:13,724
Inside the cabin,
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The control panel helps you
Guide the camera.
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You press "Up" or "Down"
To adjust the camera angle.
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00:10:24,241 --> 00:10:29,310
Then you choose one of three
Photos the camera has captured.
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The computer bases its portrait
On this photo.
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You can tell it to make
A caricature,
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A simulated work of art,
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00:10:39,413 --> 00:10:42,862
Or four small portraits
In different artistic media.
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You can choose an oil painting,
A pencil sketch,
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Or a drawing in charcoal
Or pastel.
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Now you've got a masterpiece
Starring you.
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Narrator: the world's
First postage stamp
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Was introduced in england
In 1840
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As part of a major reform
Of the postal system.
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00:11:14,965 --> 00:11:18,344
Until then, the letter recipient
Had to pay the postage.
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00:11:18,344 --> 00:11:21,068
This first stamp was called
The penny black
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Because it cost one penny
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00:11:22,655 --> 00:11:24,931
And featured
Queen victoria's profile
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On a black background.
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00:11:30,793 --> 00:11:34,965
Today's postage stamps feature
All types of illustrations.
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A graphic artist produces
A design concept,
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Working the computer cursor
Like a paintbrush on canvas.
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The concept goes
To the postal service's
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00:11:43,379 --> 00:11:45,172
Design authority for approval.
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00:11:45,172 --> 00:11:48,379
Once approved, the design
Goes to the printing company.
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00:11:48,379 --> 00:11:50,448
The printer produces
One type of stamp
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Using two different types
Of printing presses,
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One of which requires
An engraved printing plate.
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The company's master engraver
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Draws his artistic
Interpretation of the concept
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00:12:00,482 --> 00:12:03,758
Using photographs of real
Subjects for inspiration.
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00:12:03,758 --> 00:12:06,344
Then he paints his drawing
In watercolors.
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00:12:06,344 --> 00:12:07,758
The shading is key
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00:12:07,758 --> 00:12:10,931
Because it indicates where
The engraving will have depth.
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00:12:10,931 --> 00:12:13,413
This helps him envision
The end product.
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00:12:16,931 --> 00:12:19,000
Once he's happy with the result,
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He scans the image
Into a computer
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00:12:21,344 --> 00:12:25,000
And shrinks the digitized image
To the actual stamp size.
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00:12:29,448 --> 00:12:33,793
Then he lays a sheet of clear
Acetate over the reduction.
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00:12:33,793 --> 00:12:35,620
With a tool called a point,
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00:12:35,620 --> 00:12:38,551
He etches the main elements
Into the sheet.
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00:12:38,551 --> 00:12:41,448
This etching process is known
As scribing.
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00:12:53,586 --> 00:12:57,862
Now he tapes the scribed sheet
Onto a piece of soft steel.
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00:12:57,862 --> 00:13:00,655
He lifts the sheet
And coats the metal surface
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00:13:00,655 --> 00:13:02,344
With beeswax.
225
00:13:06,862 --> 00:13:09,034
Then he lays the sheet
Down again
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00:13:09,034 --> 00:13:11,379
And, rubbing
With a burnishing tool,
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00:13:11,379 --> 00:13:14,310
Transfers the scribed image
To the wax coating.
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00:13:19,172 --> 00:13:22,758
Now, under a microscope that
Magnifies the image seven times,
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00:13:22,758 --> 00:13:24,103
He etches the design
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00:13:24,103 --> 00:13:26,586
Using what's called
A pointing-in tool.
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00:13:32,034 --> 00:13:36,000
Then he sharpens another tool
Called a lozenge graver.
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00:13:38,344 --> 00:13:40,724
With that,
He deepens the etched lines
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00:13:40,724 --> 00:13:42,379
Of the design's focal point.
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00:13:42,379 --> 00:13:43,724
This adds depth,
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00:13:43,724 --> 00:13:46,724
Which will make the deer appear
Almost three-dimensional
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00:13:46,724 --> 00:13:48,103
On the finished stamp.
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00:14:09,413 --> 00:14:12,827
Once complete, the engraving
Will be copied multiple times
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00:14:12,827 --> 00:14:14,551
Onto a plastic master plate.
239
00:14:14,551 --> 00:14:16,896
Workers coat the plastic
With silver
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00:14:16,896 --> 00:14:19,206
So that it will conduct
Electricity,
241
00:14:19,206 --> 00:14:22,655
Then submerge it into a bath
Containing baskets of nickel.
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00:14:22,655 --> 00:14:26,103
They run an electrical current
In both the bath and plate.
243
00:14:26,103 --> 00:14:29,137
This dissolves the nickel
And draws it onto the plate
244
00:14:29,137 --> 00:14:30,793
In a thorough and even coat.
245
00:14:33,965 --> 00:14:35,310
With a nipping tool,
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00:14:35,310 --> 00:14:38,689
Workers remove the excess nickel
Along the perimeter,
247
00:14:38,689 --> 00:14:41,379
Then extract their
Nickel printing plate.
248
00:14:41,379 --> 00:14:44,206
Then they plate the nickel plate
In chrome.
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00:14:44,206 --> 00:14:47,586
Now it's ready to go on to
The intaglio printing press,
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A specialized machine used
To print only select elements
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On certain types of stamps.
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00:14:51,793 --> 00:14:54,413
We will explain why later.
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00:14:55,689 --> 00:14:57,482
This machine, meanwhile,
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00:14:57,482 --> 00:14:58,758
Produces the templates
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00:14:58,758 --> 00:15:00,896
For carving
What are called chablons,
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00:15:00,896 --> 00:15:02,896
The rollers
On the intaglio press
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00:15:02,896 --> 00:15:05,206
That transfer ink
To the printing plates.
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00:15:07,034 --> 00:15:09,241
Here, the machine
Traces a pattern
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00:15:09,241 --> 00:15:11,862
For one of the stamp's
Intaglio elements,
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00:15:11,862 --> 00:15:14,517
Guiding a router on the other
End to reproduce it
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00:15:14,517 --> 00:15:17,034
In half the size
In thick plastic.
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00:15:21,000 --> 00:15:24,551
At another machine, meanwhile,
A worker makes the chablons.
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00:15:24,551 --> 00:15:26,448
He takes several ingredients --
264
00:15:26,448 --> 00:15:29,689
What they are is a closely
Guarded company secret --
265
00:15:29,689 --> 00:15:32,517
And pours them into
A roller forming machine.
266
00:15:32,517 --> 00:15:35,448
The mix heats to about
350 degrees fahrenheit,
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And over about
An hour and a half,
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00:15:37,379 --> 00:15:40,379
It thickens and hardens.
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00:15:40,379 --> 00:15:44,413
Now an automated router machine
With multiple heads
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00:15:44,413 --> 00:15:45,724
Goes to work.
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Following the plastic template,
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The heads carve away
At the rubber,
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00:15:51,586 --> 00:15:54,689
Leaving behind a raised design
In the shape of the elements
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The intaglio press will print.
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It's this raised area
That transfers the ink
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00:16:02,655 --> 00:16:04,241
To the printing plate.
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00:16:14,448 --> 00:16:16,793
Narrator: why do they print
Some parts of a stamp
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00:16:16,793 --> 00:16:18,000
Using one type of press
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00:16:18,000 --> 00:16:20,034
And other parts of it
Using another type?
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00:16:20,034 --> 00:16:21,275
Simple.
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00:16:21,275 --> 00:16:23,620
Off-set printing presses
Are widely available,
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00:16:23,620 --> 00:16:26,517
So if the entire stamp will be
Printed using that technology,
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00:16:26,517 --> 00:16:28,275
Counterfeiters
Would have it easy.
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00:16:28,275 --> 00:16:30,517
Intaglio printing presses,
On the other hand,
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00:16:30,517 --> 00:16:34,413
Are harder to come by, making
Fake stamps harder to produce.
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00:16:35,862 --> 00:16:38,655
The sheets first run
Through the offset press.
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00:16:38,655 --> 00:16:40,448
It prints one color at a time,
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00:16:40,448 --> 00:16:43,344
Making a separate printing plate
For each color.
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00:16:43,344 --> 00:16:45,793
The plate is wrapped
Around a cylinder.
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00:16:45,793 --> 00:16:47,034
As it revolves,
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00:16:47,034 --> 00:16:49,551
The plate transfers or offsets
The ink image
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00:16:49,551 --> 00:16:52,068
To a rubber cylinder
Rotating against it.
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00:16:52,068 --> 00:16:53,517
As that cylinder turns,
294
00:16:53,517 --> 00:16:56,827
It transfers the image to
The paper passing underneath.
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00:16:58,310 --> 00:17:01,689
A postal-service official
Inspects the press output.
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00:17:01,689 --> 00:17:03,379
Using a magnifying glass,
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00:17:03,379 --> 00:17:06,310
She scrutinizes the color
And print quality,
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00:17:06,310 --> 00:17:08,068
Circling any problem areas
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00:17:08,068 --> 00:17:11,310
For the press operator
To investigate and correct.
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00:17:15,068 --> 00:17:19,379
Now the offset printed sheets
Move on to the intaglio press.
301
00:17:24,068 --> 00:17:26,379
The intaglio's chablon rollers
Spread ink
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00:17:26,379 --> 00:17:28,482
Over the printing plate
The factory produced
303
00:17:28,482 --> 00:17:29,827
From the engraving.
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00:17:29,827 --> 00:17:32,482
The ink fills the recessed lines
Of the image.
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00:17:32,482 --> 00:17:35,586
The press runs the plate
Against the paper sheets,
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00:17:35,586 --> 00:17:38,172
Transferring the image.
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00:17:38,172 --> 00:17:41,172
Intaglio printing leaves the ink
Slightly raised
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00:17:41,172 --> 00:17:43,137
Above the surface of the paper.
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00:17:43,137 --> 00:17:46,068
This gives the image height,
A third dimension.
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00:17:51,068 --> 00:17:53,724
Once again, the inspector
Checks the result.
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00:17:53,724 --> 00:17:56,724
It's up to the press operator
To correct any error.
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00:17:56,724 --> 00:18:00,137
The cause can be as complicated
As a printing plate problem
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00:18:00,137 --> 00:18:03,000
Or as simple as a speck of dirt
In the machine.
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00:18:05,448 --> 00:18:06,896
The printing now done,
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00:18:06,896 --> 00:18:08,896
A worker loads the stamp sheets
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00:18:08,896 --> 00:18:11,758
Into a computer-guided
Perforating machine.
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00:18:11,758 --> 00:18:15,241
Grippers pull the sheets forward
One section at a time.
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00:18:20,103 --> 00:18:22,689
Down comes a die with rows
Of steel pins,
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00:18:22,689 --> 00:18:25,379
Each just a fraction of an inch
In diameter.
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00:18:25,379 --> 00:18:27,103
They punch through the sheet,
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00:18:27,103 --> 00:18:29,310
Framing each stamp
With tiny holes
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00:18:29,310 --> 00:18:31,758
Spaced less than 1/16
Of an inch apart.
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00:18:31,758 --> 00:18:34,965
The machine knows just where
To punch these perforations
324
00:18:34,965 --> 00:18:37,206
By reading the line
Of florescent ink
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00:18:37,206 --> 00:18:39,689
That runs along the borders
Of each stamp.
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00:18:39,689 --> 00:18:41,206
This ink, called tagging,
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00:18:41,206 --> 00:18:43,620
Is visible only under
Ultraviolet light.
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00:18:43,620 --> 00:18:45,793
Tagging also plays a role
Later on.
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00:18:45,793 --> 00:18:48,241
The automated machines
That process mail
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00:18:48,241 --> 00:18:51,517
At the sorting plants are
Programmed to scan for tagging.
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00:18:51,517 --> 00:18:53,793
They reject all envelopes
Without it.
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00:18:53,793 --> 00:18:56,206
Those letters are either
Missing a stamp
333
00:18:56,206 --> 00:18:58,000
Or bear counterfeit postage.
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00:19:04,172 --> 00:19:06,620
After stacking
The perforated sheets,
335
00:19:06,620 --> 00:19:09,379
Workers trim them down
To the finished size,
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00:19:09,379 --> 00:19:11,724
Usually sheets of 10
Called panes.
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00:19:11,724 --> 00:19:13,137
Their trimming machine
338
00:19:13,137 --> 00:19:15,620
Is appropriately called
The guillotine,
339
00:19:15,620 --> 00:19:18,034
But unlike
The head-chopping version,
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00:19:18,034 --> 00:19:20,965
This one slices with a sideways
Shearing action.
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00:19:20,965 --> 00:19:23,103
That puts less wear
On the blade.
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00:19:27,103 --> 00:19:29,413
The machine holds the stack
In place
343
00:19:29,413 --> 00:19:31,896
With more than 8,800 pounds
Of pressure
344
00:19:31,896 --> 00:19:35,172
So that it doesn't budge
Under the weight of the blade.
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00:19:35,172 --> 00:19:37,655
The blade rings in
At almost 71 pounds.
346
00:19:42,103 --> 00:19:45,517
Now it's time to group the panes
Into manageable-sized packs
347
00:19:45,517 --> 00:19:48,103
For post offices
And other stamp retailers.
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00:19:48,103 --> 00:19:50,689
This machine is called
A vacuumatic counter
349
00:19:50,689 --> 00:19:53,137
Because it uses suction
To draw the panes
350
00:19:53,137 --> 00:19:55,586
Across a paddle wheel
Which counts them.
351
00:20:01,724 --> 00:20:04,310
This stack adds up to 503 panes,
352
00:20:04,310 --> 00:20:08,310
So the worker removes three
To make an even 500.
353
00:20:08,310 --> 00:20:12,413
The counter inserts a tab
Between every 50.
354
00:20:14,862 --> 00:20:17,724
Some stamps go through
What's called bursting,
355
00:20:17,724 --> 00:20:20,827
The process of manually
Separating pairs of stamps
356
00:20:20,827 --> 00:20:24,310
For different post office
Product lines such as gift sets.
357
00:20:24,310 --> 00:20:27,482
Some burst stamps go onto
First day cover envelopes,
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00:20:27,482 --> 00:20:30,034
One popular collector's item.
359
00:20:30,034 --> 00:20:32,206
An automated pad picks up
The stamps
360
00:20:32,206 --> 00:20:34,379
And runs them
Against a wet roller
361
00:20:34,379 --> 00:20:36,896
That activates the adhesive
On the back.
362
00:20:36,896 --> 00:20:39,172
After a worker positions
An envelope
363
00:20:39,172 --> 00:20:40,551
Against the guide bar,
364
00:20:40,551 --> 00:20:43,172
The pad places the stamps
In a precise spot
365
00:20:43,172 --> 00:20:45,413
And applies even pressure
Over them
366
00:20:45,413 --> 00:20:48,137
So that they'll lay flat
And adhere securely.
367
00:20:49,931 --> 00:20:52,862
Many stamps are still
The old lick-and-stick type
368
00:20:52,862 --> 00:20:54,655
Printed on paper that's coated
369
00:20:54,655 --> 00:20:58,758
With a moisture-activated
Adhesive on the back side.
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00:20:58,758 --> 00:21:01,103
However, the most commonly
Issued stamps,
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00:21:01,103 --> 00:21:02,413
Known as definitives,
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00:21:02,413 --> 00:21:05,206
Are printed on what's called
Pressure-sensitive paper.
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00:21:05,206 --> 00:21:07,655
That's a technical term
For peel-and-stick --
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00:21:07,655 --> 00:21:10,241
No water or saliva required.
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00:21:10,241 --> 00:21:13,241
--captions by vitac--
Www.Vitac.Com
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00:21:13,241 --> 00:21:16,206
Captions paid for by
Discovery communications, inc.
377
00:21:18,206 --> 00:21:20,310
If you have any comments
About the show,
378
00:21:20,310 --> 00:21:22,931
Or if you'd like to suggest
Topics for future shows,
379
00:21:22,931 --> 00:21:24,517
Drop us a line at...
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