US1149387A - Cartridge. - Google Patents

Description

I. B. MAC'KEY.

CARTRIDGE. APPLICATION FILED 001228, 1914.

1,149,387. Patented Aug. 10,1915.

m under,

. OHN @MHCKEY wwnamw JOHN B. MACKEY, OF LA'IHROP, PENNSYLVANIA.

CABTRID GE.

Specification of Letters Patent. 7

Patented Aug. 10, 1915.

Application filed October 28, 1914. Serial No. 869,100.

To all whom it may concern:

Be it known that I, JOHN B. Maonnv, a citizen of the United States, residing at Lathrop. in the county of Susquehanna and State of Pennsylvania, have invented certain new and useful Improvements in Cartridges, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in cartridges and has relation more particularly to a device of this general character especially designed, and adapted for use for blasting purposes; and the object of the invention is to provide a novel and improved device of this general character whereby the direction of the force of the explosion may be readily and conveniently controlled whereby the same is particularly adapted for use in quarries.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved cartridge whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantaous for use, all as will be hereinafter more l llly set forth.

The novel features of the invention will be carefully defined in the appended claims.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in perspective of a cartridge constructed in accordance with an embodiment of my invention; Fig. 2 is a side elevational' view thereof illustrating the same inapplied' position; Fig. 3 is a view in perspective, on an enlarged scale, of the plug embodied in my present invention; and Fig. 4 is an outer end elevational view.

As disclosed in the accompanying drawings. 1-1 denote duplicate sections of the shell comprised in my improved cartridge and of substantially rectangular form and adapted to be disposed in superimposed relation, with adjacent extremities of such sections disposed in converging planes whereby a shell of substantially wedge formation is produced with one end substantially straight while the opposite end is of diamond formation. The longitudinalmargmal portions of the sections, as herein disclosed, are united or connected by the fragile bonds 2, preferably of wire, and which are adapted to afford a minimum of resistance when the explosive within the shell is caused to explode. The marginal portions of the sections are provided with the openings 3 adapted to register and through which the wires or bonds 2 are directed, as is believed to be clearly set forth in the accompanying drawings. However, I have found in practice that means other than the wire bonds 2 may be employed with equal facility, such as paraffin.

The open end of the shell is adapted to be closed by the pointed plug member 4 of a configuration in transverse section substantially identical with the transverse section of the assembled shell, and it is to be observed that one side portion of the plug is cut-away, as at 5, to permit the insertion within the shell of the battery wire a whereby the explosive E may be caused to explode. This cut-away portion 5 will also permit the insertion of a conventional fuse if such an arrangement should be desired. 1 also find it of advantage to provide amarginal portion of the shell adjacent the closed end thereof with an opening 6 for the insertion of a fuse when the requirements of practice so require.

As is believed to be self-evident, my improved cartridge is adapted to be suitably inserted and packed if desired within an opening bored within the material to be blasted, and it will be readily perceived by those skilled in the art that the thickness or width of the cartridge varies according to the diameter of the hole or opening in which it is to be inserted.

From the foregoing description, it is thought to be obvious that a cartridge constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim:

1. A cartridge of the character described includinga shell comprising superimposed sections having their longitudinal and one end marginal portions closed, said sections .having adjacent end portions disposed in including a shell comprising superimposed sections having their longitudinal and one end marginal portions closed, sa1d closed end being straight, said sections having adjacent end portions disposed in planes converging toward the closed end of the cartridge, the opposite end portion of the shell being substantially diamond-shape in cross I section, and a plug member for closing the open end of the cartridge.

3. A cartridge of the character described comprising superimposed sections having their longitudinal and one end marginal portions closed, said closed end being straight, said sections havingadjacent end .portions disposed in planes converging to- V the closed end thereof being provided with an entrance opening.

4. A cartridge of the character described including a shell comprising superimposed sections having their longitudinal and one end marginal portions closed, said sections having adjacent end portions disposed in planes converging toward the closed end of the cartridge, said closed end being straight, the opposite end portion of the shell being diamond-shape in cross section, and fragile means for maintainingthe sections in superimposed relation.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. JOHN B. MACKEY, YVitnesses:

L. J. STERLING, I G. O. RonERTs.

' Copies of this patent may be obtained for five cents each, by addressing the f Commissioner of Patents,

Washington, D. 0. i

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