US1153088A - Fusee. - Google Patents

Description

W. D. JACKSON.

FUSEE.

APPLICATION FILED DEC. 10. 1914.

1,153,088. PatentedSept. 7, 1915.

' To all whom it may concern;

\ UNITED STATES PATENT onrron 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOB T0 GEORGE B.

015 PHILADELPHIA, PENNSYLVANIA.

WILTON D. JACKSON,

JACKSON,

FUSEE.

Application filed December 10, 1914. Serial No. 876,512.

are more fully described hereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a sectional view of a fusee made in accordance with my invention; Fig. 2, is a perspective view of a material retaining block which I employ with my improve fusee, and Figs. 3, -i, 5, 6 and 7 are views 0 modified forms of material retaining blocks, within the scope of my invention.

In carrying out my invention, I fit the end of the fusee tube 1, with a tubular plug 2 for the reception of the hardhead 3, which plug is firmly secured to such tube. This plug has a conical through bore 4, the smaller end of which is disposed at the extremity of the fusee. A straight bore would allow the contents of the fusee to fly out when the latter struck the roadbed if thrown from a train. The conical bore prevents this, as the contents choke up in the bore and are restrained and held in. This plug or block, which is preferably cylindrical, may be secured in place by applying glue to the outer wall or surface of the same which will be attached to the inner wall of the fusee tube, or by other means, as hereinafter described. It frequently happens, however, that the tubes do not run true to size, and hence to avoid any difliculty that might be occasioned owing to the fact that the plug would not fit the tubes, I slot the plug, as indicated at 5; such slot being of an appreciable width so as to permit contraction of Be it known that I, WILTON D. JAcKsoN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Fusees, of which the following is a specification.

My invention relates to fusees of the type generally employed in railroad practice, containing colored fire or similar illuminating material and provided with eel-E contained means whereby such illuminating material may be ignited.

The customary practice is to fill the paper tube or body of the fusee with the illuminating material to point within a half inch or so from the upper end or top of such tube. This space is then filled with a secondary compound or priming commonly called the hardhead, which is usually in a solid state when the fusee is ready for use. The top of the hardhead is coated or partially coated with initially ignitible material.

In fusees as usually made, more or less difliculty occurs in the handling of the same owing to the danger of the ignition material leaking out of the top. This may be due to several causes. The tube of the fusee is usually of pasteboard or similar material and is liable to damage at the ignition end, and while under ordinary circumstances the ignition material or hardhead to be initially ignited is hard or firmly compressed and tends to hold itself in place, it may be dislodged or fractured by a sharp blow, or by damage in transit, or from other causes, prior to use. In practice, it has been discovered that the hardhead substance sometimes blows out of the end of the fusee by force generated from its own combustion before the main body of illuminating material within the fusee has become ignited. In other instances, it has fallen out, and in some instances when thrown from a train the jar of striking the earth causes it to drop out. Under these conditions the fusee will not burn and it is thereby rendered useless as a signaling device.

The object of my invention is to provide means whereby the dangers of these several conditions may be avoided or prevented.

These and other features of my invention If desired, in order to assist insertion of the plug in the tube, the lower portion of the outer wall may be slightly beveled, as indicated at 6, in Fig. 3.

In some instances it may be desirable to grove or slot the under portion of the plug to make it suificiently compressible for ready insertion in the tube instead of carrying the slot 5 through to the conical bore. Such a construction is shown in Fig. l; the grooves or slots being shown at 7. I

It will be obvious, of course, that the plug may be held in the end of the fusee tube by various means, such, for instance, as those illustrated in the several views of the drawings, and in various other ways, too numerous to mention. While illustrating a numtube of the fusee.

the plug prior to slipping the same in the her of ways in which such plug may be held in place, I do not wish to be limited to any of the constructions I have illustrated.

In Fig. 5, I have shown a plug with a conical bore,such as illustrated in Fig. 2, held in place by a pinor tack 8. V v

In Fig. 6, I have shown a plug 2* having an annular groove 9 at the upper outer edge of the same, into which the wall of the fusee tube may be upset or crimped, as indicated at l i In Fig. 7, T have shown a plug 2* having an annular groove 9 midway of the top or bottom into which the wall of the fusee tube may be turned or spun, as indicated at 1 in the drawings.

While I have shown and described a plug made of wood, it is obvious that I may employ tubular blocks or plugs of other material; such as pasteboard, composition, papier mach, or any other suitable material, constructed in a manner that will permit in sertion in or attachment to the fusee tube in a manner that will insure the performance of the function for which such tubular plugs or blocks are desired.

claim: r V

1. The combination, in'a fusee, of a tubular body, and a contractile tubular plug fitting the end of the same. Y

2. The combination, in a fusee, of a tubular body, and a contractile tubular plug fitting the end of the same and having a conical bore. 7

' 3. The combination, in a fusee, of a tubular body, and a contractile tubular plug of Wood fitting the end of the same.

4. The combination, in a fusee, of a tubular body, and a contractile tubular plug of wood fitting the end of the same'and having a conical bore. 7

5. The combination, in a fusee, of a tubular body, and a split tubular plug fitting the end of the same.

glue ,said plug having 6. The combination, in a fusee, of a tubular body, and a split tubular plug fitting the endof the same and having a conical bore. 7. The combination, in a fusee, of a tubular body, and a split tubular plug of wood fitting the end of the same.

8. The combination, in a fusee, of a tubular body, and a split tubular plug of wood fitting .the end of the same and having a conical bore.

9. The combination of a fusee, comprising a tubular body filled with illuminating material, and a splitplug fitting the end of the tubular body and fastened thereto, said plug having aconical bore with the smaller opening at the extremity of the fusee andrecei-ving a portion of the igniting material.

10. The combination of a fusee, compris-' ing a tubular body filled with illuminating material, a split plug fitting the ignitible end of the tubular body, and means for fastening said plug to the fusee tube, a conical bore with the smaller opening at the extremityof the fusee and receiving a portion of theigniting material.

11. The combination of a fusee, comprissaid plug having ing a tubular body filled with illuminating material, and a contractile plug fitting the end of the tubular body and secured in place byglue; said plug having a conical bore.

hecombination of a fusee, compris ing a tubular body filled with-illuminating material, and a split plug fitting theend of the tubular body and secured in placebya conical bore. I In testimonywhereof, I have signed-my name to this specification in the presence of two subscribing. Witnesses.

Witnesses:

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofjEatents Washington, D. 0. I 1 7 WILTON D. JACKSON. 1

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