US903875A - System of electrical insulation. - Google Patents

Description

I P. M. LOGKE. SYSTEM OI ELECTRICAL INSULATION. APPLIOATION FILED MAB. 20,1907.

Patented Nov. 17, 1908.

2 SHEETSSHEET 1.

P. M. LOGKE. SYSTEM OF ELECTRICAL INSULATION.

APPLICATION FILED MAILZQ, 1907.

Patented NOV. 17, 1908.

' 2 SHEETS-SHEET a.

Nmus

FRED M. LOCKE, OF VICTOR, NEW YORK.

SYSTEM OF ELECTRICAL INSULATION.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed March 20, 1907. Serial No. 363,378.

To all whom it may concern:

Be it known that I, FRED M. Looxn, of Victor, in the county of oOntario, in the State of N ew, York, haveinvented new and useful Improvements in Systems of'Electrical Insulation, of which the following,

taken in connection withthe accompanying drawings, scription.

This invention relates to an improved system of insulation for high potential electric conductors involving the use of a series of insulators which may be built up indefinitely or added to the system as the voltage of the current in the conductor is increased thereby enabling me to quickly and economically provide am le insulation for any degree of voltage an still use insulator sections of comparatively small size.

Themain object of my present invention is to support the several insulators of the is a full, clear, and exact deseries in such manner that the normal weight or load carried by such insulators individually and collectively will operate to press the sections of each insulator together thereby keeping such sections in close contact and permitting them to be assembled or nested together loosely if desired or at least without special glazing, cementing or otherwise bonding such sections permanently at the joints, it being understoodthat each insulator is preferably made upof a series of comparatively small etticoat sections.

of porcelain or other nested together.

In other words, I have sought to interpose any number of insulators of the character described between a main support and insulating material electric conductor and at gradually increasing distance from the main support by supporting each insulator from the bottom with its etticoats flaring downwardly and carrying the bottom section of each succeeding insulator by suitable links or tie pieces con-- uected to or engaged with the top section of the next preceding insulator of the series so that the weight of each insulator after the first one of the series is carried by the top section of the one preceding it thereby clamping the insulator sections of each insulator between its bottom supporting pin and the link or connection leading from the top of the insulator to the bottom of the next succeeding insulator.

A further object is to suspend the entire series of m'sulators upon and from a swing- -1nghanger attached to .the cross arm or other available support.

Other objects and uses will appear in the following description.

In the drawings-Figures l and 2 are eleva-tions of modified forms of my improved insulating system showing one of the insulators of each form in section. Figs. 3 and dare elevations-of further modified systems ofiinsulation, each showing one of the insulators in section.

In the system shown in Fig. 1, I provide amain support 1 with a suitable attaching element as an eye 2 to which is swiveled one end of .a swinging hanger 3 which extends some distance 'from the main support -1 and terminates in an upright spindle l'. adapted to enter a socket in the bottom of a sectional insulator 5- forming one of a series of similar insulators. The hanger 3. therefore, extends from a point above to a position under the first insulator -5 of the series, the main body of the hanger being located at one side of said insulator. A second hanger -6 is supported at oneend upon the top section of the insulator -5- and is preferably connected thereto by means of a cap -7, said hanger 6 extending downwardly at the opposite sideof the insulator -5 and some distance below the lower section of said insulator and terminates in -an upright. spindleor pin 4.-, some distance below but in vertical alinemen-t with the first named spindle 4 and adapted to enter the under side of the bottom section of the second insulator -5- of the series thereby supporting the said second insulator in vertical alinement with but some distance below the first insulator. In like manner a second hunger -(3 is supported upon and connected to the top sew tion of the second insulator F) and extends downwardly some distance below the bottom of said second insulator and terminates in an upright pin or spindle -'l which enters a central socket in the bottom section of a third insulator 5, all of said insulators being in this instance supported and retained some distance apart in vertical alinement one above the other while the intermediate portions of the hangers, which alternate on opposite sides of the succeeding .sectionof each insulator upon one of the hangers and connecting or supporting the hanger for each succeeding insulator upon the top section of the one preceding it, the sections of each insulator are automatically pressed or nested together and by this means .may be retained in operative position without the use of-cement or other bond at the joints, although such cement or bond may be used if desired. The hanger 3-- constitutes a link or tie piece between the first insulator and the main support while the hanger 6 constitutes between adjacent insulators so that the whole system of insulators is practically gsuspended from the swinging hanger 3 which enables such insulators to shift or swing within a limited range of adjustment to conform to inequalities of tension of the wire leading from opposite sides of the last insulator of the series. The hangers 6-- and insulators -5- may be multiplied indefinitelyto afiord the proper insulation accordin to the voltage of the current which it is desired to insulate from the main support 1 but the last insulator of the series is adapted to carry the conductor or feed wire as 8 which is supported upon and preferably secured to the top sectioniof said last insulator of the series.

, The system shown in Fig. 2 is quite similar to that shown in Fig. 1 except that the hangers as -3 and 6- are made in the form of rings or open fram'es having central pins on the bottom bar for receiving and supporting the bottom insulator section of each insulator centrally within its supporting frame or hanger. That is, the hanger -3'- 'swiveled at its upper end in the supporting eye -9.- on the main support 1 and extends downwardly at opposite. sides of and under the-first insulator -5 while the insulators --6 which are identical with each other are mounted at their upper ends in the grooves of the top sections of their respective insulators and are held in such grooves by tie wires -10 fastened around the neck of the top sections of the corresponding insulators. The lower hanger -6 represents an elevation of the superposed hanger 6 while the latter hanger represents an edge view 0 r the lower hanger and it is therefore clear t lat the intermediate hanger 6- is carried wholly links or tie pieces ceases by the top section of the firstinsulator and carries from the under side the second insulator which in turn carries from the top the lower hanger -t3 and supports from the bottom the third insulator 5, which in this instance is the last one of the series and carries upon its top section the conductor or line wire -S.

In Fig. 4 I have shown a series of two insulators 5- spaced apart one above the other in vertical alinement, the upper insulator of the series being mounted directly upon a center pin 12- which enters a socket in the lower insulator section or bottom of the insulator and is supported upon a fixed part as a cross arm -1 while the hanger as 6- is of the open frame type substantiallylike that shown in Fig. 2 having its upper end centrally seated in a groove in the top section of the insulator 5'- and secured therein by a tie wire -10- while its opposite side extends downwardly some distance below and at opposite sides of the insulators --5 and cross arm -1- and under the lower insulator where it is provided with a central center pin -t entering a socket in the bottom section of the second insulator. This last insulator carries upon its top section the line wire as -8- or this line wire may be substituted by another hanger similar to the hanger -6- for carrying a third insulator if desired.

In Fig. 4 I have shown a series of three insulators -5- as arranged side by side in a horizontal plane some distance apart, the first insulator of the series having its bottom section supported upon an insulating pin '-4' on a cross arm 1- while its top section is provided with a cap 7 to which is secured one end of a bracket -13,' said bracket being therefore carried by the top section of the first insulator -5. The other end of said bracket -13- is provided with an .upright center pin l% entering the socket in the bottom of the insulator -5 for supporting the latter. In like manner the top section of this second insulator carries a second bracket 13- and enters the under side of the third insulator supporting on its top the wire -8.

The brackets 1 l-- may be duplicated and supported by another support as 1- at the right of the insulators herein shown for supporting an additional series ofinsu lators but Ihave deemed it unnecessary to show such construction in view of the factthat it is a mere duplication. of what is herein disclosed, in which case the wire is supported upon the center insulator of the series.

What I claim is: 1. A system of insulation for high voltage electric currents, comprising a series of insulators arranged in sequence, and each comeesrews v posed of sections nested together and suppofiing ties 1ending-from the bottom sec- 'tion of each insulator to thevtep section of the one preceding it.

2. A system of insulation for high Voltage electric currents, comprising a series of insulators arranged in sequence an electric conductor resting on the top of the last in sulator of theseries, caps on the tops of, the

1 preceding insulators, and a supporting tie 10 leading from the bottom of each insulator to 1 the cap of the next preceding insulator.

In Witness whereof I have hereunto set my hand this 16th day of March 1907'.

FRED M. LOCKE. Vitnesses: Y

W. A. HIGINBOTHAMJ CHAS. L, BROWN.

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