US2107734A - Skyrocket - Google Patents

Description

Feb. 8, 1938. L. F. HoLcoMB 'sKYRocKET Filed Jilly 26. 1955 2 Sheets-Sheet l INVENTOR. ZesZLef/F//o feo/H1.l IWW/1%,

/11'5 ATTORNEY.

Feb. s, 193s. L, F, HOLCQMB 2,107,734

SKYROCKET Filed July 26, 1935 A 2 Sheets-Sheet r2 /1 s ATTORNEY.

Patented Feb. 8,1938

SKYROCKET Lester F. Holcomb, Freeport, N. Y., assignor to Paramount Fireworks Company,

Inc., New

York, N. Y., a corporation of'New York Application July`26, 1935, Serial No 33,303

My present invention relates to improvements in skyrockets. More specifically, the invention pertains to improvements in the construction of wing skyrockets of the type shown and described in my copending application for Letters Patent, Serial #699,113. The improved skyrocket herewith disclosed is also constructed to include, tail wings for guiding the same during ilight, which wings similarly serve to form a base to maintain the article in a substantially vertical position preparatory to firing. v

The primary object of the invention is to construct a' skyrocket of the wing type which will include wings that have suflicient rigidity and strength to resist breakage, or bending out of shape with relation to the rocket casing, during the handling of the same in shipment. The material preferably employed in forming the present wings for the skyrocket is a heavy fibre board of approximately if of an inch in thickness.

A further object of the invention is to provide a skyrocket, which'may be fired from the ground without the assistance of the customary guide sticks during the initial period of its iiight, so that the possibility of damage due to falling metallic, or wooden parts, such as heretofore employed in skyrocket construction, is eliminated.

Another object of the invention is to provide means for securing the wing sections of the rocket to the lower portion of the casing thereof, so that the wings are securely and irremovably placed in position.

The inventive concepts, herein specifically disclosed, particularly reside in the combination rocket casing and wing structure, as shown in the accompanying drawings, in which:

Fig. 1 ls a perspective view of the improved skyrocket;

Fig. 2 is a central sectional elevation of the lower part of the rocket casing showing the preferred form of wing in position therein;

Fig. 3 ls a detailed perspective view of a wing, such as employed in connection with the form of the invention illustrated in Fig. 2; l

Fig. 4 is a view, similar to Fig. 2, in which a modication of the wing structure is illustrated;

Fig. 5 is a detailed perspective view of the connected wings employed in the form of the invention shown in Fig. 4;

Fig. 6 is a central sectional elevation of the lower part of the casing of the skyrocket illustrating a further modification of Wing attachment therewith;

Fig. 'l is a detailed perspective view of the wing attachment shown in Fig. 6 of the drawings;

1 claim. (o1. ica-23) Fig. 8 is a bottom plan view of the rocket casing illustrating the construction of the same as employed with each of the forms of wings shown in Figs. 3, 5 and 7;

Fig. 9 is a central sectional elevation of a further modied form o rocket casing' indicating the wings employed, therewith, in position;

l Fig. l0 is a bottom plan view of the skyrocket with wings attached, as shown in Fig. 9, and

Fig. 1l is a detailed perspective View of one of the wings utilized in the form of the invention embodied in Figs. 9 and l0.

With reference particularly to Fig. l of the drawings, the skyrocket constructed in accordance with the present invention 'includes the' customary tubular rocket casing i5 and Aconieally shaped head member it. The propelling and pyrotechnic charges are situated in the usual manner within the rocket casing it. Tail Wings il are provided to stand the rocket casing in a 20 substantially vertical position upon the ground, or some other level surface preparatory to ring.- 'Ihese wings, which also serve the purpose of guiding the rocket during flight, extend radiall ly from the lower portion of the rocket casing 2, and are spaced equidistantly about the periphery of the same. The fuse for the skyrocket is indicated at iti in the drawings. k

The preferred embodiment of the invention, as illustrated in detail in Figs. 2, 3 and 8 of the drawings indicates the improved skyrocket construction to include a numberci slots l@ in the lower body portion of the rocket casing it. The slots le are cut through the thickness of the cylindrical casing and extend in a longitudinal direction to a position directly below the customary internal choke of the skyrocket indicated at 2d in the drawings. The slots in the casing are spaced equidistantly about its periphery, being preferably four in number, so that the same are situated apart. Individual wing sections, as indicated in detail in Fig. 3, are secured to the rocket casing in each of the slotted openings I9. The Wings are provided with an internally extending portion, designated at 2|, which is engaged in the slots in the casing adapted to receive the same. The respective wings are secured by gluing or otherwise fastening the same to the adjoining slotted sides of the casing. The width of the slots substantially corresponds to the thicknes of the material forming the wings, so that thesame make a very close fit. The wings in the assembled rocket, as shown in Fig. 1, extend radially from the rocket casing, and are securely maintained in this position due to the thickness of the wing itself and the joined portion of the same fitting within the rocket casing.

In the form of the invention indicated in Figs. 4 and 5, the casing construction, heretofore set forth, is also employed. Inl this instance, the wings I1 are joined in pairs, as shown in detail inl Fig. 4. Oppositely disposed wing sections have integral joining pieces 22. The joiningpieces for pairs ofthe wings are notched as indicated at 22, so that the same form male and female connections for spacing the wings at right angles to one another. 'I'he respective joined pieces 22 are placed in position within the slotted endV of the rocket casing, the same rmly securing the wings in position therein.

With reference particularly 'to Figs. 6 and 7, a further modification of the internal portion of wing structure, as herein employed, is illustrated. In this form of the invention, the wings I1` are in pairs arranged at right anglesv to one another. Each wing section I1 is provided with an internal slot engaging portion 24 corresponding to the part 2| employed in the individual wing construction referred to in connection with Figs. 2 and 3. An arcuately shaped joining piece integrally connects the respective wings, said joining piece being designated at 25. 'Ihe wing sections are secured in the slotted openings I9 in the bottom of the rocket casing, the joining piece 25 fitting against the curved inner surface of the case situated between respective slotted openings therein. The wings in this form of the invention,

as well as that described in connection with Figs. 4 and 5, are also secured to the rocket casing preferably by gluing the same at their respective joining portions so as to further insure a permanent tit. The interior face ofthe wings abutting the casing in a position above the longitudinal extension of the slots I9 may also be secured thereto by gluing or otherwise in each of the above forms of construction.

In connection with the form of the invention illustrated in Figs. 9, 10, and 11, the rocket casing I5, 'is exteriorly grooved or slotted to accommodate the length of the wing I1 as indicated at 26. The slots 26 are spaced equidistantly from one another about the periphery of the rocket casing and extend approximatelyI to a depth of half the thickness of the'casing. The wings I1 have an interiorly extending portion 21 of a thickness closely fitting the groove or slot 26 along the side of the casing, the wings being secured in position therein by means of glue or otherwise. `'I'he slots, in this form of the invention, extend longitudinally to a position on the "easing above the internal choke'20, the same lower portion of the casing, a plurality of slots in the casing in a position below the choke element, said slots extending through the thickness of the casing wall and being equidistantly spaced about its periphery, wings extending radiallyA from the casing being formed by groups of twd integrally joined sections, the joining portion of each of the groups of wings being arcuate in shape to conform tothe interior surface of the rocket casing, and means for securing each of the wing sections in adjoining slots of the easing.

LESTER F. HOLCOMB.

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