US895977A - Combined fuse-box and cut-out switch. - Google Patents

Description

PATENTED AUGQu, 190s.v o. G. DAWBER.

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CHRSTOPHER C. l)i-\.`\VBER, 0F CllylFTON, ARZONA TERRITORY.

GOMELNELD FUSE-BJX CUT-GUT SWITCH.

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To all whom it may concern:

Be it known that l, CHRISTOPHER C. DAW- Bnn, a citizen of the United States, residing at Clifton, in the county of Graham and Ter ritory oi Arizona, have invented new and useful Improvements in a Combined Fuse- Box and (lut-Out Switch, of which the follow ing is a specification.

This invention relates to protective devices for light, power, telegraph and telephone circuits, and more particularly to a combined fuse box. and cut-out switch adapted for use under conditions ordinarily requir-- inpT )rotective fuses and also where circuits are i esired to be cut into and .out of service.

The invention has for one of its objects to improve and simplify the construction and operation of devices of this character so as to be comparatively easy and inexpensive to manufacture, thoroughly reliable and eilicient in use, and so designed as to permit the fuses to be renewed with comparatively lit.

tle trouble and with a minimum of danger to the electrician.

A further object of the invention is the provision of a device of the character referred to which is adapted for single or multiple Wire circuits and clrcuits operating with either continuous or alternate current.

Another object is to provide a combined safety device and circuit controller including a common insulating support, a part of which is provided with a cover to form a fuse-con taining compartment and on which are separately actuated switches 'for cutting the binding posts of the fuses out ot' cir-cuit during the renewal of the fuse wires.

`With these objects in view and others, as 'will appear as the description proceeds, the

. invention comp rises the various novel features of construction and arrangement of parts which will be more fully described hereinafter and set forth with particularity in the claims appended hereto. y

In the accompanying drawing, which illus trates one of the embodiments of the invention, Figure 1 is a plan view of the apparatus. Fig. 2 is a similar view'showing the cover removed and inverted. Fig. 3 is a longitudinal section of the apparatus. Fig. 4 is a transverse section.

' Similar reference characters are employed to designate corresponding parts throughout the several views.

f Referring to the drawing, A. designates the body or ese-plate of the device which is Specification of Letters Patent.

Application filed .Tune 26, 1907.

Patented Aug. 11, 190,8.

Serial No. 380,89?.

preferably made of suitable insulating material and is provided with marginal flanges forming an igipwardly extending rim 2, there being a transverse wall.4 3 that divides the boxdilte hody into a Vsivitclncontaining compertinent 4 and a iuse-containing compartment 5. lThe end Walls o are formed with vertical slots 7 for the reception of the conductors 8 and 9 of the circuit or circuits t0 be protected. The compartment 5 is normally closed by a cover 10 so as to prevent the molten lead Yfrom dropping out and producing probable damage when the iuses blow. ln a multiple fuse device, the compartment 5 is divided into t'wo or more chambers 11, Fig. 2, by mes-ns of a partition 12 which may be diamond or any other shape, as preferred, and in the present instance the partition is formed partly on the cover and partly on the base-plate l, as clearly shown in Fig. 4, and on the cover portion of the partition are depending flanges 13 that form a sort of cap that tits over the portion of the partition on the hase-plate. By this means, the fuses are entirely separated so that the arc accompanying the blowing oi one fuse would have no eiiect on the other. li desired, the partition can be made wholly on either the cover or base and the cap formation dispensed with.

ln the base-plate is a countersunk opening 1e, Fig. 4., through which extends a screw 1,5 that is adapted to hold the cover or cap 10 in place hy passing through an opening 16 therein, there losing a nut 17 for securing the parts together, and to prevent the screw from turning, a iam nut 18 is employed, as shown. li desired, the bottom side of the cover can be provided with ribs 10 that en.

compartment 4 and the outer ends of the said:

plates are formed into arcuate extremities 2 5 that form contacts for the switches. Arranged in line with the plates 20 and spaced roin the arcuate extremities .thereof are metal plates 26 iorming parte of the switches,

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`for the electric current.

each late having an upwardly extending threaded stud 27 adjacent the companion contact 25, and the conductors 8 are connected with the outer ends of the plates 26 by clamping screws or binding posts 2S. @n each stud 27 is a contact piece comprising a disk 30 having an internally'threaded stud portion 31 inte which engages the stud 27, and on the contact piece is a button 32 of insulation, whereby the contact piece can be readily actuated 'lor opening oi closing the circuit. The disk portion 3() oi the contact piece is adapted to engage with the adiacent arcuate Contact 25 so as to complete the path The plates to which the conductors and fuses are connected are secured in place on the base l in any suitable manner, as for instance, by conntersunlr` screws 33 passing upwardly through openings in thebase 1 and screwing into tapped open ings in the said. metal plates.

ln practice, the apparatus in connected in any desired circuit with the translating or generating devices, and in case oit a fuse being blown, it is merely necessary to lirst turn the switch controlling the open circuit so as to rcinovethe contact 30 out ot engagement with the contact 25 and after this'is done, the

,cover 1() is taken eil and a new fuse substituted. The cover can then be replaced, and the switch closed to testtlie circuit, and in case the fuse should againblow, the circuit can be immediately turned open for placing in a new fuse. It Will thns be seen thatfit is unnecessary to' open the controlling switches at the power house or generator, thus enabling electricians toeasily and quickly restore the circuits.

Frein Dthe. foregoing description, taken in connection with the accompanying drawing, the advantages oi the construction and of the method ot operation will be readily apparent to those slrillcdi the art to which the invention appertains f and While l have described the principle o; operation of' the in ventien, together with the apparatus which I noavjconsider to be the liest embodiment thereof, l desire to have it understood that the a paratus shown is merely illustrative and t at such changes may be rnade Whe-ii desired, as are `within the scope of the claims;

Vliving thus described the invention, what I claim is l. 'Ehe combinitionio'l in insulatingr base, apair of metal pieces thereon, a fuse connectd ed with the said pieces, a cover on the base disposed over the fuse, a second nietal piece having a threaded stud, a member threaded ,passing through the base and cover lor holding the latter in place, means 'l or dividing tlic (aiinpaitnicnt into separate chambers, loses 1n the chambers, con tact i'iicinbcrs conntaxvtcd "with the 'isses and extending ont ol the conifpartnent, metal pieces having' ontstainlin;r

Athreaded. studs, switch nien'iners on the threaded studs 'for connor-tino' the said pieces with the contact members for opening and. closing'tlie circuits including the loses, and ineens for connecting the l'nscs and metal pieces in elect-ric circuits.

A device ci the class described `conrpris ingT a lbox-like structure olf insulatingr matcrial, a partition dividing!l the structure into separate compartments, e. cover l'or one oll the compartments, a nieans lor holdingl the cover removably in place, a fuse in the conipartnient, a Contact inember comiectcd with one end or" the 'fuse and extending ont ol the compartment, a metal picco, a threaded stud rising' troni the latter, a movable member on the stud adapted to engage the contact meniber to open or close the circuit, and means for connecting' a conductor with the nictal piece.

Il. it device oli the class described mmprisA ine a supporting structure ot' insulating)I- niaic rial having a lusc--containing eoinpartincnt, a. cover there'l'or, a bolt passinpr through the base and cover for holding the latter in position, means 'for dividing the compartment into sept atc chambers, spaced contact pieces in each chamber, luscs connccting?r tlic contact pieces, ont` o'l eri-h set ol' contact pieces extending' out el the cmnpartnicnl, Contact )ieee/s :ranged on the strutture one side otvt le coinpzn'tnicnt, bridging devices on the last-mentioned contact pieces and having flat under surfaces adapted to engage the Vcontact pieces extending ont ol' the conipartinent, and binding; posts.

vln testimony srlicreol', l allix my signa-- ture in presence clt two witnesses.

Vitncsses:

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