The Idaho Springs siftings-news., 1910-07-02


which are erected upon scaffoldings
sometimes much hundred feet In length.
depend for their effects wholly upon such paper
cylinders. bigger than goodsized firecrackers.
stuck all over the lattice work of the skeleton
structure employed by the fre-panter in lieu as
might say, of canvas.
Something more in detail about these fire pic.
lures will be said later on; but meanwhile 1t may
be well to speak descriptively of the processes
used in the manufacture of the more simple and
familiar kinds of fireworks-such. for example.
as roman candles. bombs. rockets, pinwheels and
the like All of these, excepting the bombs
substantially nothing more than cylinders of
pasteboard, filled with combustibles and fash
ioned In different ways.
One OF the greatest fireworks factories in the
world is located the outskirts OF Brooklyn.
but the stranger who passes by 1t on trolley car
on the way to Coney island would scarce
pect the character of the outfit which Is scat
tered over about twenty acres OF land in series
OF small buildings. come OF them being SO tiny
as to accommodate only a single workman. The
object Of this arrangement Is to minimize the
consequences of accidents. II the lone man who
occupies any one Of the tiny houses should hap
pen to be blown up he alone would suffer.
1t naturally happens that the only building
OF considerable size on the premises is in
which explosives other lively combustibles
used. Here. in fact is where all the paper is
stored, tons upon tons OF 1t, for the outer wrap
pings OF the fireworks. Pyrotechnic toys of
course, must be pretty to look at else they would
advantage
the purpose are Of all colors Of the rainbow and
q great variety OF ornamental patterns. For
extra fancy goods more or less gilt and silver
paper Is employed.
Upstairs in the same building all of the pa
per cylinders are made. the process adopted be-
ing SO exceedingly expeditions that one person
turn out many Is gross Of them in q
day. OF course they are of all lengths and diam
eters according to kind and size of fireworks
for which they are intended and though the
nAAp Pr,II Cd hv ooNhir oil 1o%t th~
others are made by hand. With the aid OF a long,
round stick Of metal and q pot of paste the oper-
ator converts sheets OF thin. brown pasteboard
into neat and compact tubes at the rate Of three
or four minute.
dozen work people engaged in this occu-
patton can turn out an immense number of cyl
inders in a day and the manner In which they
utilized in the manufacture of different kinds
of fireworks will presently be explained. 1t might
be well to say Incidentally however that In this
same department made the bombshells which
are stamped by a machine out of papier-mache
in halves. When they have become dry the
halves are Joined by strips of thin canvas soaked
in paste. each sphere thus produced having
round hole at one end for loading.
Bombs are among the most interesting and
beautiful OF fireworks and some of them are Of
great size-as much as fve feet in diameter.
They are discharged from mortars and, reaching
a height of 1000 feet or more. explode with
great noise, Hberatng showers Of many-colored
stars golden rain. or sometimes parachutes
carrying trains of stars. Some are made as
small as two inches in diameter-baby ones.
suitable for family USE
The method of their construction Is always
the same and Is at once simple and ingenious.
The papier mache shell is filled with stars
that is to say. with little pieces of cylindrical
paper tubing packed with different chemical COM
positions Beneath the shell thus loaded is at
tached and firmly glued paper receptacle con-
tanning a slow-burning composition similar to
gunpowder Then fuse Is SO fixed that being
ignited at the instant Of the bombs discharge 1t
will burn Just long enough to explode the shell
at the moment when the projectile has reached
its greatest height In the air. When this hap
pens the paper shell is blown to pieces and the
stars. incidentally ignited. thrown far and
wide. Being light. they fall slowly and the effect
produced is very beautiful.
Even the stars. you see. paper cylinders.
though only half an inch perhaps in length But
they vary much in size, according to the uses to
which they are to be put. man cuts them by
the millions with q small circular saw, taking q
handful of paper tubes Of small diameter and
using the saw to chop them into short pieces Of
equal length. Then the little sections are filled
with chemical mixtures Of various kinds. nitrate
and chlorate Of baryta being used for green. car
Donate Of strontium for red. oxylate of soda for
yellow and (oddly enough) paris green for blue.
with various admixtures Of chlorate Of potash.
sheac. ETC.
1t should have been said that. in order to
strengthen the papier-mache shells and SO to en-
able them to scatter their stars more widely
when shattered, they are wound with strong gro
GERS twine outside Of which the final decorative
paper cover II put on. There is. however an
other and quite new kind of bomb, which is made
in the shape of q cylinder. 1t is SO constructed
that during its flight through the air 1t makes
q series of "breaks." sometimes many ten.
throwing out each time q shower Of stars. This.
a. might be imagined. 10 q very beautiful effect.
and is achieved by dividing the containing cylin-
der into q series of compartments holding stars.
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Some Of these cylindrical bombs contain par
achutes which are arranged like the parachutes
dropped from rockets. Inside Of the pasteboard
case 10 . circular piece of tissue paper. around