US1097438A - Indicating fuse-holder. - Google Patents

Description

B.D. HORTON.

INDIGATING FUSE HOLDER. A1 PLIOATION FILED JAN.7.1914.

Patented May19,1'914.

BRYSON 1). HORTON, or DETROIT, MICHIGAN.

INDICATING FUSE-HOLDER.

Specification of Letters Patent.

Patented May 19, 1914 Appiication filed January 7, 131 4. Serial N 0. 810,722;

To all whom it may concern:

Be it known that I, BRYson D. HORTON, a citizen of the United States, re ding at Detroit, in the county of Wayne and State of Michigan, have invented certain. new and useful Improvements in Indicating Fuse- Holders, of which the following, taken in connection with the accompanying sheet of drawings, is a full, clear, and concise de'- scription.

My present invent-ion'relates particularly to certain details of improvement in indi cating fuse-holders of the general type illustrated in my previous Patent No. 901,448, dated October 20th, 1908, in which is disclosed ,an indicating element secured uponth exterior of the holder, which indicates at all times the condition of the within contained fuse.

Among the objects-of my present invention are to provide a new and novel means of securing-the fuse terminals to the holder, a new and novel means of securing the indicator element to the holder, and a new and novel means of connecting the indicator ele ment to the fuse, all of which will be fully understood upon a reading of the following specification.

In the accompanying drawings: Figure lis a perspective View of a fuse-holder incorporating the features of my invention.

Fig, 2 is a transverse sectional view of the fuse-holder disclosing the interior fuse'terminals and means of connecting the indicator element with the fuse. Fig. 3 is a similar View showing the relative position of the indicator parts and the condition of the fuse when blown. F ig. 4 is a cross-sectional' view taken on line'A-A of Fig. 2, and Fig. 5 is a perspective View of the insu lating tie wire connecting button,

In detail 1 indicates the casing of the fuse-holder, which is preferably made of fiber or other insulating material, 2 the metal end caps therefor, 3 the fuse terminals, and at the fuse strip, the ends of which are secured to the inner ends of the terminals 3, preferably by being soldered. The terminals 3 are secured andheld in position by means of suitable screws 5, which also secure the end caps 2 to the holder, the heads of the screws engaging the end caps, while the screw threaded shanks thereof eX- tend through suitable perforations in both end caps and fuse-ho1der. The terminals 3 are slotted adjacent to their-inner ends at 6 date the thickness of the terminal and when in position the positioning members 7 support and hold the fuse in its proper position within the holder. By this means I am enabled to assemble the respective terminals and positioning members before inserting them in the tube or holder and by the simple operation of inserting thescrews 5, the fuse terminals and end caps are expeditiously assembled into complete commercial form.

In order to indicate the condition of the fuse, I provide an indicator element in the form of a spring 9 secured at one end 10 to the interior of the fuse holder. The opposite end 11 is sccuredto the fuse 4 by a tie Wire 12 the latter being threaded through a perforation 13 in ,the fuse strip which is provided for the purpose of weakening the same at this point of connection, so that when the fuse is blowmthe end 11 of the spring indicator element 9 will have the east resistance toward separating from the body of the fuse-holder. v

4 The end 11 of the spring indicator element is insulated from the fusestrip 4 by means of a lava button 14, this button being providedwith a reduced portion 15 fitting the perforation of the spring indicator element. This button is provided with a countersink l6 and is perforated at two places 17 and 18. Throughthese perforations the tie wire 12 extends and by means of the tie wire the button is held in its proper position. After the" wire has been inserted through perforations or holes in the button an insulating sealing compound 19 is placed within the countersink 1G to fill the same. By this means I accomplish the complete insulation of the indicator element 9 from the live parts of the fuse when in use. The end 10 of the indicator element 9, which is secured to the inner surface of the casing, is covered with a suitable insulating material 20.

Having thus described my invention what I claim as new herein and desire to secure by Letters Patent is:

1. In a fuse-holder or casing, a fuse therein, a springfsecured at onecndto the intcrior'of the casing and secured at its free end exterior of the casing by a transverse connection with the fuse within the casing,

said connection and spring being insulated from each other by an insulating button, the latter being retained in position by the transverse connection,- which connection serves to hold'the' spring adjacent the exterior of the casing while the fuse therein is unbroken.

2. In a fuse-holder or casing, a fuse therein, a spring actuated indicator element se cured at one end to the interior of the casing and at its opposite end exterior of the casing to the fuse when unbroken, said latter end being provided with an insulating element in the form of a button, said insulating element having provision for the accommodation of a tie wire whichconstitutes a connection with the fuse and means for ins ulating the tie wire so the same is unexposed exteriorly of the casing.

3. In a fuse-holder or casing, a fuse therein, an indicator spring element secured to the casing, means for securing said element to the fuse and means for insulating the securing means from the indicator element, said means comprising a detachable insulatin'g button which renders said element entirely electrically unexposed when the -fuse within the casing is unbroken.

In witness whereof I have hereunto set my hand in the presence of two subscribing Copies of this patent may be obtained for five cents each, by addressing the Uommissioner of Eatenta, Washington, D. C.

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