★ Keep up to date with the latest news - subscribe to the Transcribe Bentham newsletter; Find a new page to transcribe in our list of Untranscribed Manuscripts
Flash-Pump
11
Matches-Number
Multiply the
bunches of fewel
with the correspondent
cages - &
and perhaps valves.
12
Mouths - Valves
Locks should be
epted all
round since the
power gained will
be as the quantity
of the water running
out at a given time.
The maximum
some of each lock
will be determined
by the its capacity
of bases made air-
tight & readily
turned.
The Channel into
which the water is
discharg'd in its
full may be ever
so little higher than
the pond.
be without using
the lateral Athanor
put in the fewel
at the valve in
the cover dropping
it in down a cylindrical
or conical
cage - then immediately
lowering a
lighted torch below under
it.
13
Air-leakage-loss by
Although the
valve in the cover
should not be airtight,
the power
lost will only be
in proportion to so
much air as can
rush in in the chamber
before the water
has risen its
utmost.
Besides the force
of gained by the
fall of water
something might
be done by means
of the blast of Air.
See Lewis's Commercium
Philos.
The moment
the pressure
within ceases to
be greater than the
pressure without,
that is, the moment
that air ceases to
be driven out the
weight of valve
will make it fall
& shut it. That
same moment
the force of the
air in the pond
will force up the
water, & raise the
valve.
off recarinally by a cach
---page break---
Compare the fires
thus gained with
the force that employ'd
in the Chelsea
Water-works.
See for account of
Fire-Engines Nicholson's
Philosophy
- Encycl. Brit. last
edit?
14
Cover Spherical
To facilitate the
escape of the air
Cove the Ceiling
of the Cover.
15
Height indicated
Index - a rod
stuck through a
floating cork (used
rising up a glass
receiver fashioned
into the cover.
The cork may be
supported by a
were stage at
the place where
the seale commences:
i:e: a
little below the highest
lowest point to
which the water
is sure to rise.
It will find a
lateral reservoir of any
magnitude keeping
the water in the
reservoir as high
as the water in
the pump - But,
for this purpose there
must be a pipe of
communication , in
which the ,
may be cut off
To make a
continued stream
there should be
cylinders, that while
one is filling the
other may be emptying.
But Quere, how
will the under valve continue
open when
pressed by a great
column of water
that has already
entered?
To obviate this,
make it tip over
or catch so as
to be prevented from
falling down, untill
disengaged
by the manager
stationed at the Cover.
The Necks, if three or more would serve
as pillars to
support the body
To bear the weight
the better, the bottom
of the body
might be arched.
16
Refrigeration
Contrivance for
moistening, for the
sake of cooling, the
part above where the
water rises: otherwise
by being last it will
hold the less air, &
therefore the less air can
be driven out by the .
To raise the water
15ft 15 foot by driving the whole
out half the atmosphere
the whole machine must be
60 foot high?
Quere?
Will it raise
the water the higher
for there being less
of it below, as
in the case of - I fear
not. Yes - so far
as the proportion
of air expelled thereby
will be greater.
Need the Neck
(above) be as wide
as the body, if the
legs are not?
No - it can not
be contracted to advantage
- since
the less spatious it
is, the less air can
be drawn out.
17
Closing
Make the blast
go out laterally
as out of a
Retort-neck
and by the force
of it turn a
cock which shall
prevent its return
and the blast
may serve for
bellows only, the
air will lie in
great part phlogisticated.
Half the air will
give a blast of a determinate
force. yes
if the velocity be the same
|
Identifier: | JB/106/008/003 "JB/" can not be assigned to a declared number type with value 106.
|
|||
|---|---|---|---|
|
1-17 |
|||
|
106 |
|||
|
008 |
flash-pump |
||
|
003 |
|||
|
marginal summary sheet |
2 |
||
|
recto |
|||
|
jeremy bentham |
[[watermarks::l munn [britannia emblem]]] |
||
|
benjamin constant |
|||
|
includes drawings |
34596 |
||