To Make Several Rockets Rise Together Take Six Or Any Number Of
sky-rockets, of any size; then cut some strong packthread into pieces
of three or four yards long, and tie each end of these pieces to a
rocket in this manner:
Having tied one end of the packthread round the body of one rocket,
and the other end to another, take a second piece of packthread, and
make one end of it fast to one of the rockets already tied, and the
other end to a third rocket, so that all th
rockets, except the two
on the outside, will be fastened to the two pieces of packthread: the
length of thread from one rocket to the other may be what the maker
pleases; but the rockets must be all of a size, and their heads filled
with the same weight of stars, rains, &c.
Having thus done, fix in the mouth of each rocket a leader of the same
length; and when about to fire them, hang them almost close; then tie
the ends of the leaders together, and prime them; this prime being
fired, all the rockets will mount at the same time, and divide as far
as the strings will allow; and this division they keep, provided they
are all rammed alike, and well made. They are sometimes called
chained rockets.