21x12 - Barber Chairs/Sewage Pumps/Bimini Boat Tops/Diesel Filters

[bunniefuu]

Narrator:
the reclining barber chair

Was invented in america in 1878.

At the time,
it was a grooming breakthrough.

With a chair that leaned back
and moved forward,

The barber
could shave the customer

With greater precision,

And when wielding
a straight-edged razor,

Precision is definitely
a good thing.

The barber chair
is the original easy chair.

Just sit back
and enjoy the recline.

The client doesn't need to
position himself for a shave.

The chair does all the moving.

It even lifts and swivels.

Production starts
with the base of the chair.

An employee places
a flat, round piece of steel

In a two-part die.

The die comes together
and applies pressure

To take the steel
from flat to domed.

The domed chair base then spins

As an abrasive wheel etches a
brushed finish onto the surface.

Next, the worker tucks the end
of a strip of steel

Between rollers

And turns them
to curl the steel into a sleeve

For the hydraulic chair lift.

He slides a piece of plastic
into grooves on the ends

To close the steel sleeve.

Then he slides it
onto the chair lift pump.

He places a large trim ring
on the end of the pump

And sets the domed chair base
on top.

Screws secure the base
and chair-lift assembly.

With the assembly
now right-side-up,

He attaches a u-shaped
foot pedal to the pump.

Production then moves

To the construction
of the actual seat.

The worker glues several sheets
of russian birch

And staples them together.

She continues to layer

Until the birch
is nearly an inch thick.

The last layer is thick plywood.

It's been cut to accommodate
a steel frame.

She glues and staples
the plywood

To the layered birch.

Then it's into a press

For the chair's seat,
back, and arms.

It bends the parts
to a gentle curvature

That will make the chair
more comfortable to sit in.

With a hot stamp,

The worker brands
the company name and logo

Into vinyl upholstery.

He places the wood chair back
into a bed of cushy foam.

He pulls the edges of the foam
tightly to the wood

And staples it.

He trims the excess.

He covers the chair back with
the pre-sewn vinyl upholstery,

And it's a snug fit.

Next, he gets a hand
from a pneumatic device.

It holds the chair part in place

As he staples
the upholstery to it.

He trims the vinyl
for a clean edge.

He checks the fit,

And, once satisfied,
he moves on to the chair arms.

He locks an arm in a clamp

And installs
the chrome end piece.

The chrome resists wear
better than vinyl does --

Important on this gripping part.

The crew attaches
the steel chair frame

To the underside
of the upholstered seat.

They screw the arms
onto the frame.

They install
the pneumatic mechanism

That makes the chair recline.

They screw the upholstered
chair back to the steel frame

And link
the recliner mechanism to it.

They test the recline
and incline functions.

The footrest is next.

They then pump up the lift shaft

And transfer
the upholstered chair to it.

They close the back of the chair
with an upholstered panel,

And finally,

They give the customer
a place to rest his head.

With the headrest installed,

This barber chair
is ready for customers.

Time spent reclining in it

Will no doubt leave the client
looking and feeling refreshed.

Narrator: a sewage pump is part
of an underground operation

To dispose of human waste.

It is essential equipment

When sewage must be pumped
to a septic system or sewer line

At a higher
underground location.

Working below the surface,

Sewage pumps take care
of unpleasant business.

When it comes to sewage,

People understandably prefer
to flush and forget.

The sewage pump
helps make that possible.

It is the number-one way
to move waste.

When the sewage reaches
a certain level upon discharge,

The pump's floating sensor

Activates a switch
to start pumping.

Then it's on its way to
a septic system or sewer line,

Ensuring that sewage receives
the necessary treatment.

They make
the sewage-pump housing

From a rugged cast iron.

A chain conveyor takes
the housing parts for a rinse

And an application of a chemical

That slightly etches the surface
in preparation for finishing.

The journey continues

Through a big dryer
that removes residual moisture.

The parts now head
into the spray booth

For a finish
that will protect the surface.

The conveyor delivers
a negative charge to the parts,

Causing the positively charged
powder finish

To gravitate to them.

It completely coats the parts,

And they travel through an oven
to bake on the powder finish.

Next, workers move
the pump-housing units

Across to a spinning,
abrasive disk.

This grinds the edges flat

To allow for a tight seal
to other parts.

Here's the housing
before grinding,

And here it is after.

He places a gauge under the part
in several places

To ensure
that it's completely even.

Next, a tool machines
the part of the housing

That holds the stator,

The stationary part
of the motor.

It carves the opening so that
the stator will fit to it

And also align
next to the motor housing.

Using a drill press,

A worker cuts a thread
into another part of the pump.

This will allow it
to connect to a discharge pipe.

The parts are now ready
for assembly.

A worker presses the carbon half
of a seal for the rotor shaft

Into place.

He lubricates the rotor shaft

And inserts it
into the pump housing.

A blast of compressed air
removes any contaminants.

And he installs the ceramic half
of the rotor-shaft seal.

Next, he screws the impeller
to the rotor shaft.

The impeller will move sewage

From the pumping chamber
to the discharge pipe.

He installs an o-ring
around the opening to the motor.

He inserts the stator...

And screws it into place.

He connects lead wires to
terminals in the motor housing

And sets it in place.

He runs the power cord
through the motor housing

And tightens a seal
around the cord.

He attaches a metal guard

To give the pump float
adequate clearance,

Then seals the motor housing
and wires the pump switch.

He screws the switch case
to the housing.

A worker plugs in the pump

To test for any shorts
in the electrical components.

The pump passes all the tests.

It's ready for the float
that actuates the pump switch.

A piece has been cut out
of this pump

To give us an inside look
at the sewage pump

And its operation.

As waste water rises,
so does the float,

And it activates the switch
to turn on the pump.

When the sewage subsides,

The float lowers
and switches off the pump.

Next, the pump takes the plunge
in a test tank

To ensure
that it can handle the pressure

And that it meets
all the performance standards.

Once the computer gives
the sewage pump the green light,

It's on its way
to a septic system near you.

Built for a life of effluence,

This sewage pump is now ready
to go with the flow.

Narrator:
there are unofficial claims

That bimini boat tops were named

For the sun-drenched
bimini islands of the bahamas.

The open-sided canvas tops
are usually retractable,

And beginning
in the early '60s,

Were developed to offer boaters
protection from the sun.

Out on the open water,

Bimini boat tops
provide shelter from the rain

And shade in the sun.

Their durable
and versatile materials

Withstand rugged sea breezes
and intense u.v. Rays

While providing ample headroom
for boaters.

A worker measures a piece
of anodized aluminum tubing

For the exact leg height needed

For each custom-made
bimini boat top.

Then he cuts the tubing

To the dimension needed
for each boat.

They use aluminum
and stainless steel

Because they don't rust.

The worker begins bending
the frame of the boat top.

The eventual roof support
is on the floor

While he holds the leg height
in his hand.

He must be careful
to not overbend.

The final angle
is about 88 degrees.

The worker crowns the tubing,

A process that puts a rise
in the center of the roof

And pulls the legs inward.

Each bimini boat top

Is made of three bows
of different heights.

The front
is shorter than the back,

While the center is usually

About 40%
of the back leg height.

Workers now assemble the bows.

They attach eye ends
and jaw slides

To form rudimentary hinges.

They now unfold
the assembled tubing

Using the precise measurements
of a customer's boat.

They simulate the final shape
of the boat top

By using tape to spread the bows
to exact widths.

Once the bows have been spread
and the distance is measured,

They can see the shape
of the final boat top.

All that's left
is installing the roof itself.

The roof is made
of acrylic canvas

That is both water-
and fade-resistant.

And there are plenty of colors
to choose from.

The patterning process begins.

Once the roof is cut,

A worker stitches
the roof panels.

Workers spread the cut panels
over the bow setup

To finalize the roof dimensions.

The canvas fabric
is clamped to the bow setup

As a worker marks the edges
on the outside of the fabric.

The roof is made in panels.

It usually takes
two or more panels

To complete a roof,

Depending on the size
of the boat.

Once excess material
has been trimmed off,

The worker begins stitching.

She turns the outer edge
of the roof

And uses a straight stitch.

She works on the sides
of the canvas roof

Before the ends.

The worker
now patterns the listing,

Which is a pocket through which
the bow will be inserted.

Here's what the listing's
raw pattern looks like

Once measured and cut.

She places the finished listing
on top of the panel

And stitches it
to the end of the roof panel.

The stitching process is key

To the durability
of the boat top.

She turns the roof over
so the listing is backwards.

It's actually sewn on inside-out
and then turned over.

She stitches the entire length
of the listing closed...

Then the company's
identification tag.

Workers now insert
the pieces of tubing

Into the listings
of the canvas roof.

First, they push the rear bow
all the way through.

Once the rear bow is in place,

They prepare to insert
the center and front bow

Of the boat top.

They unfurl
the remainder of the roof

And position the center bow
on the center listing.

Gradually, they slide the tubing

All the way through
the center listing.

With the front bow inserted,

The bimini boat top
is almost complete.

An employee inspects
the boat top for any defects.

Once installed,
the bimini boat top

Can either be tucked away
in its boot

Or opened up and held in place
by front straps.

For the life of your boat,

A well-maintained
bimini boat top has it covered.

Narrator: running an engine
on diesel fuel is efficient,

But it emits smelly, black
exhaust,

Soot, leftover carbon

That didn't burn off
in the combustion process.

To prevent exhaust emissions
from polluting the air,

Diesel engines
and diesel-powered generators

Need powerful filters.

This self-cleaning diesel filter
traps engine-exhaust soot

And burns it off
by heating the filter elements.

This effectively completes
the combustion process.

At the core
of those filter elements

Are heating strips
made of steel fiber,

Which is like dense steel wool.

But the steel
is a special mix of alloys

Resistant to high temperatures
and corrosion.

Each heating strip
goes into a machine

Which repeatedly folds it
up then down,

Pleating it like an accordion.

The thick steel fibers
are what trap the soot particles

As the engine exhaust
flows through.

An electrical current
heats these conductive fibers,

Burning off the soot regardless
of engine-exhaust temperatures.

Using nickel crimps,

Workers connect --
depending on the filter size --

Up to seven pleated strips
per filter element.

They press the crimps
securely into the steel fiber

With a press.

They attach a different type
of crimp at the far ends.

This type
has a tab with three holes

For the electrical connections.

Next, they bend the assembled
strips into a circle

And place them inside
a perforated steel housing.

A temporary cardboard spacer

Creates a gap
between strips and housing

To insulate
against short circuits.

The electrical-connection tabs
on the ends

Fit through slots at the front.

An insulating block
made of mica,

A non-conductive mineral,

Goes behind the tabs,

Followed by steel-fiber spacers.

All this sets up a clear
and strong conductive path

From the power source
to the strips.

They fasten the insulating block
to the housing.

Then, using tweezers,

They place a mica spacer
in between each pleat.

This prevents the pleats
from touching each other

And causing a short circuit

As the electrical current
passes through the strips.

They place a spacing stick
inside each pleat.

This is just temporary,

To size the pleat's width
uniformly

Until they're cemented
permanently in position.

To do that,
workers pour ceramic cement

Into a circular bottom plate
made of perforated steel.

The perforations
ensure better bonding.

They spread the cement
evenly across the plate...

Then position a stainless-steel
tube in the center

To connect this plate
to an identical plate on top.

They carefully place the strips
into the cement

And position the top plate...

...then add a weight
to hold it down

While it goes into an oven
at 85 degrees

To cure the cement.



They take it out of the oven
and remove the top plate.

They also remove the spacing
sticks and cardboard spacer,

Which are no longer required

Because the spacing is now
permanently set in cement.

They repeat the cementing
process with the top plate.

After a final four hours
in the curing oven,

The electrically heated
filter element,

This diesel filter's
key component,

Is completed,

And the main assembly can begin.

The larger the filter,

The more filter elements
it contains

In its stainless-steel housing.

For this mid-sized model,

Technicians stack four sets
of six elements

Then connect electrical cables
to the tab holes of each one.

Next, technicians install
a flow-control valve

For each stack.

When activated,

The valve reduces exhaust flow
to that stack,

Enabling the system to
automatically clean elements

By electrically heating
the strip.

An internal computer
manages the cleaning cycles.

It uses sensors that detect soot
accumulation in the elements,

Isolating and cleaning one
or multiple elements at a time.

On the front,
techs mount the inlet flange

Through which
the dirty diesel exhaust

Enters the filter...

On top, the outlet flange

Through which that exhaust
exits soot-free.