US1093893A - Mounting for fuses. - Google Patents

Description

G. G. STOLL.

MOUNTING FOR FUSES.

APPLICATION FILED APR. 1, 1907.

1,093,893. Patented Apr. 21, 191

onannn on a. sworn, or BROOKLYN,

commune, or cnrcneo,

NEW YORK, ASSIGNOR TO WESTERN ELECTRIC ILLINOIS, A CORPORATION OF ILLINOIS.

MOUNTING FOR FUSES.

Specification of Letters Patent. Patented Apr. 21, 1914.

Application filed April 1, 1907. Serial No. 365,874.

To all whom it may concern:

Be it known that I, CLARENCE G. 8mm, citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Mountings for Fuses, of which the following is a full, clear, concise, and exact description.

My invention relates to a mounting for fuses, such as are required in telephone circuits, and its object is to provide a simple structure which will be cheap and easy to manufacture, while efiicient in operation, and not liable to accidental breakage.

I will describe my invention by reference to the accompanying drawings, in which- Figure 1 is a longitudinal sectional View of the fuse mounting; Fig. 2 is an end view on an enlarged scale; Fig. 3 is an enlarged end View of the porcelain shell; and Fig. at is an enlarged detail view of the end of the shell, inlongitudinal section.

The same letters of reference indicate the same parts wherever they are shown.

The fuse Wire a is inclosed in a tubular shell I), of refractory material such as porcelain or similar earthenware. This shell is provided with a longitudinal bore as usual to receive the fuse wiregand has enlarged recesses at its ends, as shown in Figs. 1,3 and 4, in which the screw-threaded metal terminals 0 c are secured by a solder filling. In the form shown, the recesses 11 b are screwthreaded so that the solder filling when first poured or molded will flow the recesses and when solid will firmly interlock therewith,and hold the threaded terminals securely in place. The fuse wire is electrically connected to the respective terminals c 0. As shown, these metal terminals are bored longitudinally, and the ends of the wire are drawn into them, and secured at and satisfactory around in the extremities by solder. The projecting ends of the screw-threaded terminals are fitted with suitable binding nuts, and after these nuts are screwed on, the extremities of the threaded pins are preferably enlarged by spinning to prevent the nuts from being removed and lost. Longitudinal channels 6 b are preferably provided the interior of the recesses b at the ends of the shell, to prevent the soft metal filling from working loose by rotary movement.

Having described one form of my invention, I claim:

1. In a fuse mounting the combination with a tubular porcelain shell having a tapered and threaded recess at the end thereof, of a tubular terminal bolt smaller than and fitting within said recess, a fuse Wire within said shell and bolt and secured to the outer end of said bolt, and molded metal filling said recess around said bolt and engaging the inner threaded walls of'said porcelain shell.

2. In a fuse mounting, the combination with a vitreous insulating tube having enlarged openings at each end, of a plurality of V-shaped projections lining the entire wall about said openings, a terminal for each end inserted within the enlarged opening and closing the bore of said tube, a fuse passing through the tube electrically attached at its ends to said terminals, and molded'metal within the enlarged openings of said tube surrounding and engaging said terminals and securing them to the tubeby means of the V-shaped projections on the walls thereof.

In witness whereof, I hereunto subscribe my name this 27th day of March A. D., 1907.

CLARENCE G. STOLL. Witnesses:

RALPH G. J oHANsnN, ROY T. ALLOWAY.

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