US591917A - of philadelphia - Google Patents

Description

(No Model.)

A. W. FRANCE.

FUSE B0X.

UNITED STATES PAfrnNr @einen ADAM IVARREN FRANCE,YOF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO ARTHUR II. JONES, OF SAME PLACE.

FUSE-BOX.

srncIrIcArIoN forming part or Letters Pateneno. @permeated october i9, 1897.

Application tiled March 30,1897. Serial No. 629,904. (No model.)

To all whom t nfl/ty concern.-

Beit known that LADAM WARREN FRANCE, a citizen of the United States, residing in the city and county of PlIiladelphia,State of Pennsylvania, have invented a new and useful Improvem ent in Fuse-l3oXes,which improve men t is fully set forth in the following specification and accompanying drawings.

My invention consists of an improved construction of fuse-box, which is readily accessible under all conditions, the novel features of the same being hereinafter fully set forth, and pointed out inthe claims.

Figure 1 represents aperspectiveview of a fuse-box embodying my invention. Fig. 2 represents on a reduced scale a front elevation of a fuse-box, a portion of its outer casing being removed. Figf represents a perspective view of a non-conducting plate employed, in which a portion of the conductors and their contact devices are embedded. Fig. 4 represents a section on line :r,Fig. 3. Fig. 5 represents a front elevation of the fusebox seen in Fig. 2, showing theouter plate removed and a portion of the inner conduct-l in gbloclr in sections. Fig. 6 represents a perspective view of the inner,conducting-block seen in Fig. 5, in detached position. Fig. 7 represents a sectionon line y y, Fig. l, showing the parts in assembled position.

Similar letters ofreference indicate corresponding parts in the figures. v

Referring to the drawings, A designates a casing, the same consisting of the sections B C, the lower portions of the casing having the cap D, which is pivotally attached to one of the sections B C, said capbeing normallyA held in closed position by means of the hook' or latch F, which engagesthe lug E. v

In Fig. 2 I have shown the section C of the casing removed, thereby showing the fusebox which has the plate G, the latter having embedded or otherwise secured therein the contacts H and J, which are oppositely located, and have connected therewith the insulated conductors K and L, which latter are embedded in the plate G, as will be understood from Figs. 3 and 4, it being of course understood that said plate is composed of suitable non-conducting material.

M designates a non-conducting plug or the open end of the case N.

block which is adapted to be placed Within the vcase N, also composed of non-conducting material, and in the present instance open at its bottom, the general construction of said block M being apparent from Fig. 6.

P and Q designate recesses in the walls of the case N, saidrecesses being oppositely located, as will be evident from Fig. 5.

R designates a conducting screw or, bolt, one end of whichl holds in position the contact-spring J while its other end or head S is adapted to serve as a binding-post for the conductor U, which is composed of fusible material, said head S being located in the recess T of Vthe block M.

The conductor U leads from the binding post or head S through the tube or conduit V, of rubber or similar material, which latter is located in an opening extending through the block M, the extremity of said conductor U being held in position by means of one end of the binding-post W of the screw or conductor, said binding-post being located in the recess X, the other end of said screw serving to hold in position the contact-spring Y, it being noted that the bloclCM is provided with oppositely-located recesses P' and'Y' in order to allow the contact-springs J and Y sufficient play. p.

The operation is as follows, the manner of assembling the parts being iirst described:

AThe case N is placed in one of the sections of thecasing A', in the present instance in B,

and the non-conducting plate Gr is placedon said case N, the contacty H being inserted in the recessvP, so that it abuts against the spring T", and the contact J entering the recess Q, so that it abuts against thespring Y.

The plug or block M may now be inserted in v rIVhe section C may be secured in place, for it will of course be evident that by reason of the cap D access to the block M may be readily had without separating the sections.

The course of the electricity is as follows: The current ent-ers the conductor K and passing through the contact J reaches the spring Y, and passes thence through the conductor W to the conductor U, and thence to the conductor R and spring J to the contact Il, and out the conductor L, it being of course IOO evident that the electricity may take the opposite course to that already described it desired. Then the current has reached the proper predetermined amount, the conductor U will fuse, and especial emphasis Vis laid upon the fact that by reason of the peculiar construction and combination o'l parts there is no liability of the electricity jumping `from the conductor W' to the conductor lt after fusing of the conductor U, nor is there any liability of the current passing 'from the vfusebox to the casing.

Having thus described my intention, what I claim as new, and desire to secure by liet ters Patent, is-

l. A fuse-box having an outer casing, an inner casing of nouconductible material, a non-eonductible plate with oppositely-locat ed contaetpoints thereon having insulated cenductors connected therewith, a bloch in said inner casing having eoiulucting-bolts passing` therethrough from opposite sides thereof, springs connected with the ends of said bolts and in contact with said contact-points and a 'fusible con d uetor passing through said block and connected at its ends with said boltsI on opposite sides el the said plug.

2. A `fuse-box haring a sectional outer casing7 an inner casing having the oppositelylocated recesses l)s and Q in its inner face, the non-conducting plate G with contacts ll and J, having the conductors l and l, coin nected therewith, the block "il, the conduct ing-bolts R and iV passing` through the block from opposite sid es thereot', the springs J and Y connected with said bolts, and in contact with said contacts li and J, and the fusible conductor U passing through said block and having its ends connected With the heads ot said belts on opposite sides ol' said plug.

A fuse box having within an inner case, a non-coiulueting bloei; with an openein ing therethrough, eonduetiiig-bolts passing through said block, spring-plates secured to said belts on opposite sides ol' said bloeit, a tube in said opening in the block, and a fusibll.: conductor leading through said tube and connected at its ends with the heads ol said boltsy and insulated conductors having connection With contact points Vin contact with said spring-plates.

st. ln a fuse-box, a non-cond ucting block N, having recesses l) and Q located oppositeiy therein, conductive screws .lx-t and W located, in said block, contact-springs and Y heid in position by said screws, Y suitable cominctor U intermediate said conductive serons, a passage through said block and a tube el' rubber or similar material located in said passage and incasing said fusible coiuluctm', in combination with a plate t? having the op positely-loeated contacts ll and .'i, projectingA therefrom and conductors leading from said contacts, the latter being adapted to enter said recesses l) and Q and Contact with the springs l' and Y when the parts are assembled.

5. ./'t fuse-box consisting ol an outer easing, composed ot' the sections l and U, a bottom cap l) piyotally attz'tehed te one ort said scctions, means li'or holding said cap in closed position, the nonconducting ease N contained within said easingl and open at its bot tom, the non-comlucting` block ,il eoiistrueted as described and adapted to be inserted into said case trom the bottom thereof, eon ducting devices carried by said block and the non-etnnlucting plate G haring conductors projecting therefrom and adapted Ato contact nitl said conducting devices.

W'itncsses:

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