DOI Page / Citation link:
https://doi.org/10.11588/diglit.19575#0226
P YR 205
bole carry a little pipe to the hole near the neck of the other
rocket, having fir ft filled it with meal powder, that, when the
rocket is almoll burnt out, the fecond may be lighted by it. The
three touch-holes ftand in one row, and you may on the other
fide fix a couple of reports, which will caufe a fwifter motion.
The Tingle fliers are made with more eafe ; the neck of thefe
mull not be tied clofe as in the former, but they muft be fired in
that place ; but thefe do not turn fo well as the double ones.
Of fire-wheels. Of thefe are three forts, viz. fingle, double,
and triple : Some of their fellies are of a circular form, others
hexagonal, octagonal, or decagonal; fome like a {tar without
fellies. Moftof thefe are made to run perpendicular to the earth,
others parallel; and all may be ordered fo as to ferve on land or
water.
The fire-wheels that are to be ufed on land turn on an iron
pin or bolt, drawn or fcrewed into a poft. The nave is turned
of clofe and firm wood in which the joiners glue thefpokes, ac-
cording to the number of the fellies, which muft be carefully-
joined together. Then have a groove hollowed round, fo deep
that the rocket or cafe may be about half lodged therein. Fig. 10.
The double wheels muft have their fellies turned ftrong-er and
wider, with a groove for the rockets, not only at top, but alfo
on one fide thereof, inclining the necks of the rockets at top to
the right hand, and thofe of the fides to the left. Fig. 1 r.
A triple wheel has a groove at top, and one at each fide; the
matches are laid from one groove and rocket to another, with
fmall pipes filled with meal powder. You may alfo make a
triple wheel on a long nave, and obferve the placing of the
rockets on each, contrary one to the other; and the communi-
cation you are to make with fmall pipes, which, after they are
fixed, you are to cover and glue over with paper.
Your rockets being ready, and cut behind a little {helving,
bore them ; the firft, three diameters of its orifice ; the fecond,
two and three quarters ; the third, two and a quarter ; the fourth,
two diameters ; the fifth, one and three quarters ; the fixth, one
and an half; the feventh, one and a quarter; the eighth, one
diameter; always the latter fomething fhorter than the preced-
ing : After this they are primed with meal powder, worked up
with brandy ; and, when dry, glued in the above-defcribed
grooves. You muft bear the firft fired rocket's neck up above
the reft, underlaying it with a tin plate, or any thing elfe : The
fame you muft obferve in the head of the laft fired one, wherein
you put the charge of a report. You may alfo glue, on every
end of the rockets, a report of paper, with fmall copper pipes or
goofe-quillr., which are fixed one end in the fide of the rocket,
and the other in the report When all is dry, then you may
C©V€f
bole carry a little pipe to the hole near the neck of the other
rocket, having fir ft filled it with meal powder, that, when the
rocket is almoll burnt out, the fecond may be lighted by it. The
three touch-holes ftand in one row, and you may on the other
fide fix a couple of reports, which will caufe a fwifter motion.
The Tingle fliers are made with more eafe ; the neck of thefe
mull not be tied clofe as in the former, but they muft be fired in
that place ; but thefe do not turn fo well as the double ones.
Of fire-wheels. Of thefe are three forts, viz. fingle, double,
and triple : Some of their fellies are of a circular form, others
hexagonal, octagonal, or decagonal; fome like a {tar without
fellies. Moftof thefe are made to run perpendicular to the earth,
others parallel; and all may be ordered fo as to ferve on land or
water.
The fire-wheels that are to be ufed on land turn on an iron
pin or bolt, drawn or fcrewed into a poft. The nave is turned
of clofe and firm wood in which the joiners glue thefpokes, ac-
cording to the number of the fellies, which muft be carefully-
joined together. Then have a groove hollowed round, fo deep
that the rocket or cafe may be about half lodged therein. Fig. 10.
The double wheels muft have their fellies turned ftrong-er and
wider, with a groove for the rockets, not only at top, but alfo
on one fide thereof, inclining the necks of the rockets at top to
the right hand, and thofe of the fides to the left. Fig. 1 r.
A triple wheel has a groove at top, and one at each fide; the
matches are laid from one groove and rocket to another, with
fmall pipes filled with meal powder. You may alfo make a
triple wheel on a long nave, and obferve the placing of the
rockets on each, contrary one to the other; and the communi-
cation you are to make with fmall pipes, which, after they are
fixed, you are to cover and glue over with paper.
Your rockets being ready, and cut behind a little {helving,
bore them ; the firft, three diameters of its orifice ; the fecond,
two and three quarters ; the third, two and a quarter ; the fourth,
two diameters ; the fifth, one and three quarters ; the fixth, one
and an half; the feventh, one and a quarter; the eighth, one
diameter; always the latter fomething fhorter than the preced-
ing : After this they are primed with meal powder, worked up
with brandy ; and, when dry, glued in the above-defcribed
grooves. You muft bear the firft fired rocket's neck up above
the reft, underlaying it with a tin plate, or any thing elfe : The
fame you muft obferve in the head of the laft fired one, wherein
you put the charge of a report. You may alfo glue, on every
end of the rockets, a report of paper, with fmall copper pipes or
goofe-quillr., which are fixed one end in the fide of the rocket,
and the other in the report When all is dry, then you may
C©V€f