US1122427A - Inclosed cartridge-fuse. - Google Patents

Description

F. W. SCHNEIDER. INOLOSED CARTRIDGE FUSE. APPLICATION FILED MAB. e, 1914.

1, 1 22 4231 Patented 29, 1914.

J? J W [/1 I 7 J v J 111 mm/q g- Attorneys TATES FRED W. SCHNEIDER, OF CLAY CENTER, OHIO.

INCLOSED CARTRIDGE-FUSE.

tdZZAZT.

Application filed March 6, 1914.

lle it known that l. Frill) W. Scum-"unlit. a itiL-ien of the i nited States. residing at tlav (enter. in the count of Ottawa and E tate of ()hio. have invented a new and useful lne osed (artridge-lfuse. of which the following is a specification.

The device forming the subject matter of this application is a fuse plug and one object of the present in ention is to provide a device of this character into which a new l'use may be inserted readily.

Another object of the invention is to provide novel means wln-a'ebv the head will be prevented from rotating on the shell and from moving transversely of the shell when the end of the fuse is wrapped around a projection on the head. or when a cap which is located on the end of the shell is rotated to bind the end of the fuse between the cap and the head.

It is within the scope of the invention to improve generallv and to enhance the util it v of devices of that t \'pe to which the present invention appcrtains.

\l'ith the above and other objects in view which will app ar as the descril'ition proceeds the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed. it being understood that changes in the prec se embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accoinpan ving drawing:Figure 1 shows the invention in elevation: Fig. '2 is a longitudinal section: Fig. 3 is a longitudinal section talqen at right angles to the cutting plane in Fig. 2: Fig. l is an end elevation: Fig. 5 is n end elevation. one cap being removed; 7 6 is a transverse section: Fig. 7 is a n of the head: Fig. 8 is a side elevation of the head; Fig. 9 is an end elevation of the shell.

In carrying out the present invention there is provided a tubuiar shell 1. ordinafiber or other insulating materil v made rial. T .ti as indicated at "2 upon the ends i, l are caps 3 which preferablya metal. Each cap 3 is provided .ixial opening 4. counter sunk at i end as indicated at 5. In each end formed.

Applied to each end of the shell 1 is a Specification of Letters Patent.

Patented Dec. 29, 1914..

Serial No. 822.971.

metallic head 7, each head being provided with an exterior projection S which is agially alined with the opening l. Each head T is provided with opposed lugs 9 and each lug t) terminates in a finger 10. In each head 7 there is formed a notch 11 which intersects the periphery of the head.

The fuse wire is shown at 12 and is lodged in the notches 11, the ends of the fuse 12 being formed into convolutions 1t which engage around the projection S.

In practical operation, the. fuse wire 12 is inserted into the shell 1 and the heads 7 are mounted on the ends of the shell. the lugs t) registering in the notches t3. and the fingers 1t) engaging the interior of the shell 1. It is to be noted tl1at.without a threading action, the fuse 12 may be engaged in the notches ll of the heads 7. s

The ends of the fuse 12 are wrapped around the projections S to form the convolutions H. and it is to he observed that owing to the fact that lugs are engaged in the notches U of the shell. the heads 7 will not rotate and twist the fuse while the fuse is being wrapped around the projections 3, Further. the heads 7 cannot move transversely of the shell 1. during the operation above mentioned. by reason of the fact that the finger 10 engages the interior of the shell.

After the fuse wire 12 has been connected with the heads 7 in the manner hereinhefore described. the caps 3 are rotated to a .firin seat and the convolutions l-l of the fuse wire 12 are bound between the caps and the heads. It is to be observed that during the rotation of the caps 3 to a firm seat. the heads 7 cannot rotate and twist the fuse because the lugs 9 are engaged in the notches 6. The fingers 10 serve to cen ter the heads 7, so that when the caps 33 are rotated to a seat. the projections S on the heads 7 may be received in the openings of the caps 3.

Having thus described the invention. what is claimed is':

1. In a device of the class described. a shell having notches in its ends: a head on the shell and provided with lugs which engage in the notches. the lugs terminating in fingers which engage the inner wall of the shell. the head having a projection upon its exterior face and being provided in its projection; the lugs and the fingers co6perating with the shell to form a positive lock preventing the head from rotating on the shell and moving transversely of the shell when the fuse is Wound about the projection.

v 2. In a device of the class described, a shell having notches in its ends; a head on the shell and provided with lugs which,

engage in the notches, the lugs terminating in fingers which engage the inner wall of the shell, the lugs and the fingers cooperating with the shell to form a positive 1 loci; preventing the head from rotating on the shell and from moving transversely of the shell, the head having a projection upon its exterior face and being provided with an opening; and a fuse extended through the opening, the fuse being formed into two convolutions, the inner convolution lying against the projection, the outer convolution engaging the inner convolution to hold the latter against the projection, the inner wall of the opening being alined with the periphery of the projection, thereby permitting the inner convolution to be formed closely around the projection, and permitting the outer convolution to be formed within the contour of the head.

In testimony that I claim the foregoing as my own, I have hereunto aflixed my signature in the presence of two witnesses.

FRED W. SCHNEIDER. Vitnesses:

GEORGIA A. YENZER, M. A. CLARK.

Images