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March 29, 1938. L. R. HARTMAN" 2,112,488 BLOW- OUT IMITATOR AND THE METHOD OF PACKAGING THE SAME Filed Feb. 10, 1936 2 Sheets-Sheet 1 March 29, 1938. L. R._HARTMAN 2,112,488 _ BLOW-OUT IMITATOR AND THE METHOD OF‘ PACKAGING THE‘ SAME Filed Feb. 10, 1936 2 Sheets-Sheet 2 Patented Mar. 29, 1938 2,ll2,t88 UNITED STATES PATENT HQE ' 2,112,488 BLOW-OUT IMITATOR AND THE METHOD OF PACKAGING THE SAME . 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 pedo. placed in its cup carrier. This explosive mixture Another object of the invention is the provision is composed of red phosphorous and chlorate of 1 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 3 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 pedo. Fig. 3 is a view in bottom elevation of the in vention. 45 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. 50 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 sold. 35 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 another. 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 2,112,488 2 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 invention. The spring clip C which is utilized for attach 15 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 .40 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 terial. 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. 2,112,488 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 10 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 age. ' 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. 3 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. LOUIS‘ R. HAR'I’MAN.