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Патент USA US2112488

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March 29, 1938.
Filed Feb. 10, 1936
2 Sheets-Sheet 1
March 29, 1938.
2,112,488 _
Filed Feb. 10, 1936
2 Sheets-Sheet 2
Patented Mar. 29, 1938
Louis It. Hartman, Elkton, Md, assignor to Vic
tory Fireworks and Specialty 00., Elkton, Md,
a corporation of Maryland
Application February 10, 1936, Serial No. 63,288
2 Claims. (Cl. 102-25)
This invention relates to a blow-out imitator
nates the toy torpedo as an entirety, B the carry
and the method of packaging the same and as
ing and supporting base therefor and C the spring
conceived and designed an explosion in imitation clip which provides a means forattaching the
of a tire blow-out is caused by a detonator in the
device to an automobile tire in the manner illus
form of a toy ?reworks torpedo. With this de
trated in Figure l of the drawings.
5 vice one can safely plan an amusing trick by at
Having reference now particularly to Figure 4, 5
taching the device to a tire of a friend’s car.
it will be seen that the toy torpedo comprises a
When the car is moved and the rotation of the
pair of telescopically arranged cup-shaped mem
wheel brings the detonator into engagement with bers ill and It within which is carried the ex
the pavement it explodes with a loud bang which plosive mixture 22.
is a perfect imitation of a tire blow-out.
In Figure 4 of the drawings this explosive mix- 10
Accordingly one of the primary objects of the ture is shown to be of a cake or tablet-like form
invention is the provision of a toy or joker tor
which is the form the explosive has when ?rst
placed in its cup carrier. This explosive mixture
Another object of the invention is the provision is composed of red phosphorous and chlorate of
potash with gum-arable as a binder and when ?rst 15
of a toy joker torpedo which can be utilized with
placed in its carrier it is of a liquid form and
out danger to the automobile or tire or danger to
spectators or passers-by from flying fragments.
Another and further object of the invention is
the provision of such a device constructed in a
20 particular novel manner whereby it can be boxed
or packaged cheaply yet in a manner to fully
comply with the rules and regulations of the
Bureau of Explosives.
A still further object of the invention is the
26 provision of a toy or joker torpedo having a novel
explosive mixture and to thereby provide a toy
torpedo which is a distinct improvement over ones
as now made and sold and has certain speci?c
attributes and advantages which will be herein
39 after more particularly pointed out.
Other speci?c features of improvement and ad
vantage will appear in more detail from the ac
companying drawings when read in the light of
the following description.
In. the drawings:
Fig. 1 is a perspective view of one side of the
front end of an automobile, the fender of the car
being broken away in section to illustrate the
40 manner of application of the toy to the car tire.
Fig. 2 is a view in top elevation of the toy tor
Fig. 3 is a view in bottom elevation of the in
Fig. 4 is a vertical sectional view through the
torpedo and a portion of its supporting and car
rying base.
Fig. 5 is a fragmentary detailed view illustrat
ing the torpedo in a position about to be exploded.
Fig. 6 is a fragmentary vertical sectional view
of Figure 5.
Fig. 7 is a view in elevation illustrating the
manner of packaging the torpedo.
Having reference to the drawings which illus
55 trate an embodiment of the. invention, A desig
hardens into a cake or tablet as illustrated in
Figure 4.
Continued setting of the explosive mix
ture results in its binder drying out to such an
extent that handling the torpedo or any jar '20
thereof will result in breaking down the cake or
tablet so that the explosive assumes a granular
form, as illustrated in Figure 6 of the drawings.
Ordinarily toy torpedoes carry sand, pebbles,
or some abrasive mixture in conjunction with the 25
explosive mixture to cause the same to explode
when struck. The present mixture however when
it becomes of granular form, will explode readily
by even a light blow without the use of sand,
pebbles or any abrasive mixture, with the result .30
that the device is much safer in use as it elimi
nates the ?ying particles of sand or the like,
which has always been incident upon the explo
sion of toy torpedoes as now manufactured and
The interior area of the telescopic cup-shaped
explosive carriers is greater than the area of the
bulk of the explosive mixture to provide a gas
chamber is which is necessary to a toy torpedo
of the present type. The explosive carriers are '40
externally coated with a coating of wood ?our and
silicate of soda, or paint, or some other suitable
like substance, indicated at M, and serves to act
as a binder to secure the telescopic members
against displacement from or movement upon one 45
The base B is composed of card-board, ?bre
board or other suitable like material and is of an
area many times that of the toy torpedo and al
though illustrated in the drawings as being square 50
in shape it need not necessarily be so shaped as it
could be rectangular, round, or of any particular
desired con?guration. It has been found how
ever that by making the base either square or :55
rectangular simpli?es the packaging of the toy
joker, as will readily appear hereinafter.
ings due to the fact that the tire must progress
forwardly further than is here illustrated to bring
As here shown the relative sizes of the base and
torpedo in practice is substantially one to six
that is to say, the base is six times larger than
the torpedo.
The toy torpedo is secured approximately cen
about a sufficient pressure or impact upon the
explosive material to set it off.
By directing and confining the path of travel
of ?ying fragments to one closely paralleling and
clcsely adjacent to the road~bed, it will be seen
trally of the base, preferably, as illustrated at 45
in Figure 4 of the drawings, with glue or some
other suitable like adhesive material. It is to be
realized and understood however, that other and
different means for securing it to the. base could
be utilized without departing from the spirit of the
The spring clip C which is utilized for attach
ing the device to the automobile tire, is composed
preferably of suitable resilient wire, such as music
wire, but could of course, if desired, be made of
lead or could even be replaced by a string which
20 would pass over the wheel rim between its spokes
and have its ends tied together. The present and
illustrated clip is however considered as provid
ing a convenient and easy means of attachment
of the joker to the tire and at the same time one
which by reason of its resilient nature assuring
against accidental displacement of the device
from the tire as the car is started and the tire
and wheel are revolved.
In its contracted form the clip is circular in
30 shape but of suf?cient length so that when ex
panded its ends l6 and I‘! are sufficiently far
apart that even when applied to a tire of large
size the ends of the clip are well around the side
walls of the tire and will engage them under
resilient tension. It will be obvious that due to
the inherent resiliency of the clip it will similarly
accommodate itself to a small sized tire.
This clip is illustrated as being attached to the
base by a staple I8 but it is to be understood that
40 other attaching means could be easily and readily
devised. By use of a staple however it is possible
to swing the clip in respect to the base and to
place it in parallelism below and immediately
against the bottom of the base, which is of ad
vantage for compactness when packaging the
device for shipment. The clip is illustrated in
this position in Figure 3 of the drawings. When
the device is to be applied to a tire the clip is
swung at right angles to the base in a manner
illustrated in Figure 2 of the drawings.
In using the device it is preferably placed on the
tire at a point well up under the fender of the
car, as illustrated in Figure 1 of the drawings, to
reduce the likelihood of the car driver seeing the
joker when entering the car to drive oif. As the
car is moved forwardly the toy torpedo, as it is
about to be exploded, will assume the position il
lustrated in Figures 5 and 6 of the drawings.
Here it will be seen that the granular explosive
60 mixture has tumbled down into the cap Iii with
the result that the gas chamber iii has been
shifted from the cap cup into the base cup I I. It
will be further seen that the trailing edge l9 and
the leading edge 28 of the base B adequately
and fully protect the automobile tire M from
possible injury when the explosion takes place
and furthermore that the base B has assumed
such a position in respect to the pavement or
road-bed 22 as to cause the flying fragments of
70 the pair of casing cups H and M to be con?ned
to a path closely paralleling the road-bed, as indi
cated by arrow.
As a matter of fact the base B
will be more closely in parallel relation to the
road-bed, when the explosion actually takes place,
than is illustrated in Figures 5 and 6 of the draw
that possible injury to pedestrians or spectators
is reduced to the minimum. Any fragments hav
ing a tendency to travel rearwardly will be trapped 10
between the road-bed and the trailing edge of the
base. The base also provides an assurance that
the explosive will at all times explode when com.
pressed between the tire and the road-bed in
that it is su?iciently stiff and su?iciently hard to
prevent any possibility of the pneumatic tire
drinking in the toy torpedo and passing over it
without setting it off.
It has been found that the explosive will det
onate without fail and thereby create an amusing
situation and quite a joke upon the driver of the
car when he gets out and looks in vain for‘ the
blown out tire.
The explosive mixture having obtained a
granular form the grains working upon and
against each other together with the impact or
pressure brought about between the car tire and
the road-bed, sets the explosive mixture off and
due to the gas chamber 13 the report is a loud
bang which is quite a realistic imitation of an 80
automobile tire blowing out or exploding.
Under the rules and regulations of the United
States Bureau of Explosives relative to the ship
ment of ?reworks and explosives a toy torpedo,
such as the present invention, must be packed in
an individual container or must be within an in
dividual compartment if packed with other like
devices in a box or container.
Due to providing the present toy torpedo with
an enlarged base or support it has been found
possible to cheaply and advantageously package
a plurality of them for shipment.
Figure '7 of the drawings clearly illustrates the
improved method of packaging as well as illus
trating the part which the large base or carrier
plays in solving the shipping problem in an ef?
cient yet non-expensive manner. Shipment of
the top torpedoes as illustrated in this ?gure of
the drawings meets with the approval of the
Bureau of Explosives.
Describing the method of packaging in detail,
and having reference to Figure '7 of the drawings,
3!] represents a card-board box which is approxi
mately square in shape, and 3| the cover thereof.
This box is divided by card-board partitions, 32 )
and 33 into four compartments of equal size and
which extend throughout the depth of the box._
Three toy torpedo devices are placed in each
of the box compartments. The lowermost de
vice in a compartment has its base B against the 160
bottom M of the box and is then on its top side
covered with a suitable cushioning material 35,
such as saw-dust, shavings or the like. The
second device is placed upon the top ofthis
cushioning material and it in turn is covered to ‘u
a substantial depth with cushioning materal.
The third toy torpedo is placed upon the last
mentoned cushioning material and it in turn
is covered and protected by a cushioning ma
The bases B of the devices are of a size
to ?t snugly Within the box compartments with
the result that in combination with the side walls
and partition walls of the box these bases actually
constitute bottoms to form within each individual
box compartment a plurality of compartments.
Thus it will be seen that the bases are pro
vided not only to function as heretofore described
when the device is put into actual use, but also
to function in connection with packaging the
toy torpedoes for transportation.
It is to be observed and understood that if the
bases were made in rectangular, round or other
shapes the bases could still function as division
members within the box by merely altering the
shape of the box and particular shape of each
individual box compartment to agree with the
particular shape of the base and to coincide with
the particular size of the bases.
It is to be further understood that the inven
‘,5 tive concept of the method of packaging as dis
closed herein need not be limited to a box carry
ing any particular number of toy torpedoes. The
principle of the invention can be utilized in any
box or container where more than one toy ex
plosive device is carried within the box or pack
It is to be further understood that the particu
lar improved explosive mixture heretofore de
scribed need not necessarily be used. A loose or
granular mixture of chlorate of potash, antimony
sulphide and small gravel, such as is commonly
used in present well known toy torpedoes could
be substituted, if desired.
I claim:
1. A toy torpedo adapted to be attached to a
vehicle rubber tire comprising a base, an ex
plosive containing case attached substantially
at the center of said base, said base having an
area, several times greater than the transverse
area of said explosive case, a circular resilient
clip having its ends overlapping and free, at
taching means embracing that part of said clip
between its free ends, said means attached to
said card at one side thereof, whereby said clip
may be turned parallel with the said card when
not in use, for the purpose set forth.
2. A toy torpedo adapted to be attached to a
vehicle rubber tire comprising a base, an ex—
plosive containing case attached thereto sub
tantially at the center of the said base, a cir
cular resilient attaching member having free ends,
a member embracing the said circular member
and attached to the said base and at one side
thereof, whereby the resilient member may be
turned parallel with the said base when not in
use, and at right angles to the said base when the
torpedo is to be attached to the tire, substan
tially as set forth.
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