Pyrotechnics: The History and Art of Firework MakingBrock, Alan St. H. (Alan St. Hill)
History
Pyrotechnics: The History and Art of Firework Making
Brock, Alan St. H. (Alan St. Hill)
Fireworks
When this actually took place is uncertain. Frézier describes its
making similarly to that in use to-day, under the name of “étoupilles.”
Bate uses the word “stouple,” evidently a corruption of the French.
He gives no actual description of the making of this, but it appears
to be of “cotton weeke” dipped in “aqua vitæ wherein camphire hath
been dissolved.” This would produce only a slow-burning match unless
it was his intention to use it wet, in which case the burning of the
spirits of wine might quicken the effect. It would, however, be quite
out of the question to construct a piece of any elaboration with such
materials.
Quickmatch is manufactured to-day in the following manner. Cotton wick
is run through a pan containing a paste composed of gunpowder and
starch. It is wound on a frame six feet in length, dusted with mealed
powder and dried. When dry it is cut off the frame and threaded into
paper tubes or “pipes” of larger diameter, leaving an air space round
the match.
Before threading in the tubes it is known in the trade as “raw match,”
and is used for priming and similar uses, and in this state will only
burn quite slowly.
Quickmatch is used to connect the units of all pieces. Display cases
have a “cap” formed of a few turns of paper pasted on the case at the
lighting end. When a piece is fitted up the cases are tied to the
cleats provided to receive them on the framework; they are then “lead
up.” A length of quickmatch has a small piece cut out of the pipe to
allow the fire to flash through, it is then doubled at that point and
inserted in the cap, which is gathered in and tied round securely.
This is continued round the piece, each case having match entering and
leaving the cap, and in some cases a further length connecting one
series with another. This leading up of set pieces is work requiring
skill and knowledge which is only gained by experience. An amateur at
a first attempt might possibly be successful in lighting all the cases
on a piece, but he would be very unlikely to produce that instant and
symmetrical ignition which denotes the skilled pyrotechnist.
The smaller wheels have turning cases, that is, small rockets to give
them motion; these burn through very rapidly, and the continuation of
movement is provided for by capping the turning cases at either end and
leading them up vent to head in series; the motive power for the larger
display pieces is provided by gerbs, which, from the nature of their
fire, give more effect than would rocket cases, and have the further
advantage of burning longer.
It would not be possible in the present work to give a complete
catalogue of the varieties of pieces which have been produced, but the
list given by Ruggieri is typical of the whole, and includes many of
the smaller compound pieces in use to-day for shop and small display
work.
Public-domain text, read in full here on John Shaqi.
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