To Fix One Rocket On The Top Of Another When Sky-rockets Are Fixed
one on the top of another, they are called towering rockets, on
account of their mounting so very high. Towering rockets are made
after this manner: Fix on a pound rocket a head without a collar; then
take a four-ounce rocket, which may be headed or bounced, and rub the
mouth of it with meal-powder wetted with spirit of wine: this done,
put it in the head of a large rocket with its mouth downwards; but
before it is put
in, stick a bit of quick-match in the hole of the
clay of the pound rocket, which match should be long enough to go a
little way up the bore of the small rocket, to fire it when the large
rocket is burnt out. As the four-ounce rocket is too small to fill the
head of the other, roll round it as much tow as will make it stand
upright in the centre of the head: the rocket being thus fixed, paste
a single paper round the opening of the top of the head of the large
rocket. The large rocket must have only half a diameter of charge
rammed above the piercer; for, if filled to the usual height, it
would turn before the small one takes fire, and entirely destroy the
intended effect: when one rocket is headed with another, there will be
no occasion for any blowing powder; for the force with which it goes
off will be sufficient to disengage it from the head of the first
fired rocket. The sticks for these rockets must be a little longer
than for those headed with stars, rains, &c.