US1236001A - Fuse-support. - Google Patents

Description

G. S. NEELEY.

FUSE SUPPORT. APPLICATION FILED MAY 22. I916.

Patented Aug. 7, 1917.

GEORGE SPENCER KEELEY; OE SMILOUIS COUNTY, MISSOURI; ASSIGNORI.-OF.ONE-HALF TO THOMAS: O. MOLONEY; OF ST LOUIS; MISSOURI.

FUSE-SUPPORT.

- Specification! Letterl ratent.

Patented Aug. 7'; 191-7.

Applicltionfledlay 22; 1918;: Serial No; 99,174, a

To all whom it 'may concern: 7

Be it known: that I, Gnome Srnncna Nmzmr, a'citizen' of thegUnited' States, re-

siding at theccounty of: St; Louis-,.State' of act description, such as will' enable others skilled in the art to which'it'appertains to make and use the same," reference'bemg had .to the accompanying drawings, forming part of thisspecification.

This invention" relates' broadly to: elec trical distribution, and more-specifically to a form ofsupport for ffuse'or 'cut out'boxes, and lines in association therewith, in 'high tension distribution systems;

As is Well known in-the art, it is' customary to transmit current" on distribution lines under ashighpressurepand at" points where it is: desired to take: off current for use, to step down'the highxpotential' current to the proper: voltage by atransformer,

which is customarily supported; on the pole which carries the primary lines.- As a means for protectingi'the transformerand the secondary'cireuit from" high voltages and overloadit is customary to'insert a fuse or cut-out in the lead; from-thehighrvoltage line to the transformer. Due to various causes, these'fuses are'frequently' blown out, and of course require renewal. The-operation of renewing fusesisattendedi with considerable riskbecause'of the proximit of the fuse box to conductors carrying igh voltage, and this is particularly true during" rain, or when the pole oncro'ssarmsare Wet or incrusted with ice.

It is the particular" object of my inventiona'to provide an arrangement for supporting the fuse box relative tothe cross arm and the high'potentialf'linein suchfashion as to afford maximuminsulation; ofthe parts-which must be handled in" renewing the fuse, from'the-pole and fromthe charged conductors. It is my object" also to' provide' suchan arrangement which": is adapted for the utilization of the forms:offuse boxes,

insulators; etc, which are now approved.

practice and commonly employed, and to provide clearance spaceon the cross. arm-for mountmg' the usual lightning arrester:-in-.-

stallation for thefurther protection of-the transformen.

Other objects of my invention will beobvious. or pointed outhereinafter;

In the drawings Figure l'is a front elevationiof the upper portion of a line pole showing; th'e2-appl1cation of my'invention.

Fig. 2 is a. detail showingtaaside"elevation of'my invention as utilized atia dead end of a r-imary line. 7

ig; 3' is a side elevation'ishowinggmy'invention' as employed at a; point where-the primary line is continued; and

Fig. i is a detail? illustrating-'thebracket form ng-a portion of my invention, audits application.

In said: drawings, let. the numeral 1' in-- dicate a conventional line supporting pole; upon which is carried a-prim'ary cross arm 2 and a secondary cross'arm 4; A. transformer 5 is supported on the poleinany suitable. fashion.- It will be un'derstoodthat this assembly represents; a condition obtaining at a point where; it is. desiredto-take current from the primary or high tension distribution lines" for: use. Let' the numeral 6 indicate an insulator pin' of conventional form, which is supported: on the cross arm 2 in customary fashion.v An. insulator 7 of approved design is mounted: on thepinfi'in the usualmanner, Gustomarily'suchan insulator so mounted is used to carry the transmission line. At. a point where it is desiredt'oinsert a fuse orcutf-outbox, however, the transmission line is not supported on'this insulator, but'is supported in a manner hereinafter to be" described.

Let the numeral 8-represent a fuse box or cut-out of conventional type, the same including a skirt portion 8 which. forms an inclosure and protection for the fuse plug 8 The latter is insertible int'othe skirt portion 8 from below; and in such fashion that a fuse carried on the entering'portion of'fuse plugB will. be received within theskirt portion 8fand protected thereby from the elemerits.v The fuse box. has a pair of longitudinally extending apertures adapted for the reception of supporting means. In connection with the fuse box, I employ a form of bracket 9 which is attached to the former by means of the bolts 10 passing through the longitudinal apertures of the box, and seated in ears 9 of the bracket. The bracket is in two pieces which may be identical, each including in addition to the ear 9*, an arm 9 extending from said ear and to a clamping portion 9. The clamping portion 9 is semiannular in form, and adjacent its extremities are formed transversely extending sleeves 9. The clamping portion 9, arm 9, ear 9, and sleeves 9 are preferably formed integral, as a casting of bronze or high quality iron such as will be free from oxidization by the weather. The size and contour of the clamping portion 9 is such that when two of the bracket portions are placed together in the relationship illustrated in Fig. 4, the clamp ing portions will form an annulus adapted to encircle and operably engage the neck of an insulator 7. The bracket is secured on such an insulator by means of bolts 11 which are seated in the sleeve portions 9. When so clamped to an insulator 7, and with the fuse box supported on the ears 9 by means of the bolts 10, the box will be supported from the insulator, and spaced apart therefrom, and spaced entirely apart from the cross arm 2. This will place the fuse lug 8 in an isolated position an appreciable distance apart from the cross arm.

In case the support is installed at the terminus or dead end of the primary line, I will employ as one of the members comprising the bracket, a member having a ring 12 formed on its extremity opposite the ear portion 9*. To this ring will be attached a short suspension member 14 carrying an in sulator 15 at its extremity. The high tension line wire 16 will be tied to the insulator 15, and a lead from the line wire will be taken in the form of a choke coil 16, to one of the fuse connections on the fuse box 8. Another wire 17 will connect the other fuse connection on the box 8 with the primary tap of the transformer.

By virtue of this arrangement, it will be seen that the fuse plug 8 is very conveniently located with respect to the high tension line as regards the possibility of its being manipulated without subjecting the operator to the danger'of coming into contact with the high tension line. The high tension line is insulated completely from the cross arm both by the insulator 14 and the insulator 7. Likewise, the fuse plug 8 is completely insulated from the cross arm by its position entirely the insulator? and by apart therefrom.

In Fig. 3, I have illustrated the application of my invention at a point other than at a dead end of the primary line. In this position, the fuse box is supported from the insulator 7 as just described, but the transmission line 16 instead of being secured to an eye of the bracket, is tied to the fuse box, the lead and choke coil '16 being brought down from the transmission line to the contact on the box.

' By virtue of this construction, it will be observed, not only is the fuse plug supported a substantial distance apart from the cross arm, but the leads to the box, and from the box to the transformer are all supported a substantial distance apart from the pole and the cross arms. By virtue of this arrangement, this form of support provides an effective protection for the pole and for a lineman manipulating the fuse plug, as the disposal of the fuse box in a position spaced apart horizontally from the arm prevents short-circuiting from the box to the arm in the case of rain.

I am aware that the construction and arrangement above described is adapted to variations and modifications without departing from the scope of the invention inicate in the following claims.

What I claim is: i

1. In a transmission system, a support for electrical conductors including a supporting arm, an insulator supported thereon, a bracket supported on the insulator and extending to one side of the arm, and a fuse box supported on the bracket with its terminals at one side of and apart from the arm, said fuse box being arranged for connection with a transmission line to support the same away from the bracket and arm. I 2. In a pole-supported transmission system, the combination of a supporting arm, an insulator supported thereon, a bracket supported on the insulator and extending laterally thereof clear of the arm, a fuse box supported by the bracket and spaced apart from the arm, a plug supported in the fuse box and having an external manipulative portion spaced apart horizontally from the arm, and said fuse box being aras f ranged for electrical connection with a a transmission line supported by able fuse plug supported in the fuse box signatiire in the presence of two witnesses;

and including a fuse having electrical conthis 19th day of May, 1916.

nection with said transmission line and an external manipulative portion spaced apart GEORGE SPENCER NEELEY' from the transmission line and from the Witnesses:

arm. M. P. SMITH,

In testimony whereof I hereunto afiix my M. A. HANDEL.

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