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Flash Pump
26
The stage is
unnecessary. The
Match may be
toward to the proper
position by
the ballance, &
Fire put to the
match before it
is lit down
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28
Blast husbanded
To take advantage
of the blast of wind
riing driven out by
the flash, make
it turn a windmill
which might be
vertical or horizontal .
As the whole current
of the air
might be confined
to the dimension
of the sail instead
of being diffused
extending through
the whole space of
the atmosphere
as in a common
windmill might
not the ?vane? be
made so as to
present always
their greatest surface
to the blast, and
their edge afarthing
had got out of the
reach of it?
Would the making
use of the wind
in this way retard
the blast considerably
so as to do
more mischief by
such retardation than
the benefit woulld be
worth?
N.B. the advantage
of such a windmill
the common one is
only the saving the time
that would be otherwise
lost by calms.
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Identifier: | JB/106/009/002"JB/" can not be assigned to a declared number type with value 106. |
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26-30 |
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106 |
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009 |
flash-pump |
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002 |
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marginal summary sheet |
2 |
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recto |
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jeremy bentham |
[[watermarks::l munn [britannia emblem]]] |
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benjamin constant |
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includes drawings |
34597 |
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