Improvements in Pyrotechnic Advertising Apparatus.
Year: 1891

page_text: Date of Application, 25th July, 1891-Accepted, 29th Aug., 1891
COMPLETE SPECIFICATION.
Improvements in Pyrotechnic Advertising Apparatus.
I, JOSEPH WELLS of Riversdale Works, Earlsfield in the County of Surrey,
Pyrotechnist, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement thereof, that is to say:-
My invention relates to improvements in pyrotechnic advertising apparatus and
has for its object to shoot off a box sent up in the air a number of superposed paper
sheets or discs contained therein and upon which is printed the advertisement
required.
In the accompanying drawings,
Fig. 1 is an elevation of the apparatus Fig. 2 being a central vertical section
and Fig. 3 a horizontal section of the same.
My improved pyrotechnic apparatus consists of a box or case a preferably of
cylindrical shape terminating at the bottom in a conical appendage forming a
chamber c in wbich is stored the explosive by means of which the box is shot into
the air. This box is closed at the top by a centrally perforated disc g of wood or
other suitable material surmounted by a ring i of similar material covered on the
top by a cardboard disc or by a suitable membrane forming a chamber h in which
is stored the explosive destined to discharge the advertisements K cut preferably
of octagonal shape and piled up in the manner shown in Fig. 1 in the lowermost
chamber c.
A plug furnished with a narrow central channel D is inserted by its
narrow end into the perforation of the disc 9 against which it bears tightly as shown
in Fig. 2, the ignition of the explosive in the chamber c being communicated after
an interval to the charge contained in the chamber h. The box a is furnished at
its lower end with a lid b, having the form of a disc which may be made of wood,
cardboard, parchment, and the like so as to offer sufficient resistance to act as a wad
and yet not to be too heavy. A fuse j is attached along the outside of the box as
shown, one end entering the chamber c while the other end hangs loosely down.
A cord p passes through the whole length of the fuse. The apparatus being placed
in a mortar in the reverse to that shown in the drawings, the fuse is ignited and
burns until the flame reaches the chamber and ignites the charge contained therein
thus propelling into the air, when after it has ascended a certain altitude the
ignition is communicated to the charge contained in the chamber h, which charge
explodes and expels the advertisements from the box, these advertisements being
scattered about and falling over a considerable area of ground.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
The improved pyrotechnic apparatus, arranged, constructed and operating sub-
stantially as herein described and shown and for the purpose set forth.
Dated this 25th day of July 1891.
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for Applicant.
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for Applicant.