JB/106/011/003

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or boiling which
from Townsend?
certainly baking cheapest - Boiling heats a great superfluity of water. No use converting any of it into steam.

First suppose
every part of the
process to be
conducted by
hand - and
then, wherever
human judgement
can be
dispensed with,
such contrive to
substitute mechanism

Human reason
may be dispensed
with, wherever
certainty can
be attained.

—

be made, the
more water be
raised in a given
time - nothing
should
be left to hazard.

20

Refrigeration

The quicker
the air cools
the quicker the
flashes may
succeed one another:
therefore
the sides should
be lined not with
the less worst but
with the best
conductors of
heat. Not so: since the cooling will be performed best by splashing

the best _ Quere
Bends? Rather than
joints, 2 tons of straw
in one cage.

</pb>

21

Match

For the Match
or Flash-faggot
try straws of different
bores, and
different intervals
between the straws
to see which is most
favourable to the
maximum of heat
& quickness of ascension.

Much will depend
on the driness
of the Straws.
Moisture besides
retarding the ascension
will diminish
the heat.

22

The cocks, though
disposed in a
arch at least
in two semiarches
should be all
moved at one
stroke.

—

23

Fewel

The straws should
not be dipped in
any thing, as that
would only stop
the ascension by
closing the tube

On this account
they should contain
no joint:
but be cut off between
the joints - The
longer therefore
the

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If the water
would not rise
- the higher or
much the higher
for the smallness
of the content of the
inferior part,
Valves and cocks
would be of no
use: as the water
will not
sink but in
proportion as
it is drawn off
by the cocks &
replaced by the
air that rushes
in through them.

The use of
the cocks is to
make the vessel
air tight at
the height where
they are placed,
whereby the water
may be let
down below them
and so a greater
bulk of air be
subjected to the
flash.

But Quere,
whether there
can be any advantage
in that?
since by having
so much more
air

air below the
utmost you can
hope for is to
replace it with
an equal volume
of water, and that
you have already.
On the contrary
you can hardly
expect to replace
with water above
half the bulk
of air

Mouths Number

The more cocks
the quicker the
water is drawn
of and the
quicker may be
the succession of
flashes, & the
more water drawn
up within a given
time.

A second flash
can not be made
without letting
in the air which
drives down the
water to the level
with the pond
unless detained
by Valves.

The use then
of valves is to
be secure the continuance
of so
much water as
is above them I
deny

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They ought therefore
to be on a
level with the
bottom of the
reservoir.

But the having
-valves makes
legs (tubes) necessary
to place
them on.

Yes: but those
tubes said go
but a little way
down.

But then the
intervals would
be considerable &
would impede
the velocity of
the ascension.

24

Match applying

By means of
the stand &
ballance the
workman may
be at a distance
from the burnt
air of the flash ||

25

Light

By means of
tubes light could
be let into the
cylinder, sufficient
to enable
a man to see into
it.

24

|| He must always
be windward of the
gust - Therefore he must
have a walk all round
or at least half round.

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could the force
of the water in
rising or falling
be employed with
advantage in
working a pump
which should encrease
the exhaustion
and thence
the rise of the water
still more?
Or is not then opposed
by the Laws
against perpetual
motions?

In employing itself
into the reservoir
could it turn
an understool
{line diagram}
wheel which
would do this?

At any rate
not a particle of
the water ought
to fall in waste
i:e: without generating
some motion
that should be
applied to use.

26

Valve Star.

Besides the
central aperture
employ Moser's
star to open
& close the whole
cover

[Line Drawings}

The radii may
slide in one another
by grease, for
air tightness sake

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Identifier: | JB/106/011/003 "JB/" can not be assigned to a declared number type with value 106.
Date_1		Marginal Summary Numbering	1-6, 18-26
Box	106	Main Headings
Folio number	011	Info in main headings field	flash-pump
Image	003	Titles
Category	marginal summary sheet	Number of Pages	2
Recto/Verso	recto	Page Numbering
Penner	jeremy bentham	Watermarks	[[watermarks::l munn [britannia emblem]]]
Marginals		Paper Producer	benjamin constant
Corrections		Paper Produced in Year
Notes public	includes drawings	ID Number	34599
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