JB/106/011/002

Click Here To Edit Flash Pump Potatoes - baking or boiling which cheapest. Calculated from Townsend's bakers - Ok but certainly baking cheapest - Boiling heats a great {sentence completes in JB/106/011/003}

1

Rise of water
as quick high as possible

2

Rise of water, as
quick as possible
therefore

3

Combustion as quick
as possible

4

Strokes as many as
{line diagram}
as possible in a given
time therefore

5

Refrigeration as
quick as possible

6

Discharge of the
water as quick as possible.

Operator out of
reach of the blast,
which ever way
the wind lies

The water discharging-mouths
serve as far as they
go for air discharging
mouths

The neck of
tubes as large as
possible so that the
magnitude does not
prejudice the close
-fittingness of the
valves.

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Let fall a
great stone+,
after the lid
is shut down,
to make a splash,
& accelerate the
cooling of the
air

— 18
Refrigeration

+ a weight constructed
on purpose
and alternatively
let fall
and hoisted up
again by a chain
or rope

—

Better still a
shower of water
let fall from above
through holes
in a false cover
as in a cullender

—
—

After all

A given bulk
of air leaking in
at top, will only
prevent the admission
of an equal
bulk of water
at bottom.

—

+ not left indeterminate
in that
manner, but with
a determinate ring
exactly filling

Valve

equally similar
rows of {line diagram}
bars: the inner row
sliding so as either
to coincide with the
outer row, or to fill up
the interstices left by it.

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To make the
closing of the central
hole in the
cover tigh air-tight,
top the cover
with a bag
of wet leather
but so much
larger as to swing
all round it

The closing may
be favoured by
making the aperture
conical -
a solid cone letting
Down into a hollow
cone

Suppose both
polished brass
& greased.

Let the solid
cone sink a
little below the
surface, leaving
a hollow where
the case cover or down,
which the swinging
bag may
fill when it
falls

Fill it with
shot and water
or with clay and
water Or

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Or rather
the stamp on
the swinging
-bag (closing-
bag) with a
stroke of a screw

The fall of
the match
might pull
a trigger which
should set fire
to it - But
are flint &
steel sufficiently
to be depended
upon?

The match
might easily
be prevented
by a surrounding
ring from
falling upon
the point so
as to blunt it
and prevents
its catching fire

19

Match dry

The expence
of rangingplacing the
straws would
by no means
be thrown away.
The more sudden
the ascension,
the more
flashes might be

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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 ton of straw
in one cage.</p>
---page break---

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
anything, 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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Identifier: | JB/106/011/002 "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	002	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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