US876939A - Insulator. - Google Patents

Description

PATENTED JAN. 21, 1908. H. W. BUCK. INSULATOR.

HAROLD w. B'Ucn, oF NIAGARA FALLs, NEW Yoan. V

INSULATOR.

in). evaoso. f

Speoification of Letters Patent.

Patented Jan. 21, 1908.

Application filed July 29. 1902. Serial No. 117.562.

TofaZlfwh-omit may concern;

.Be it known that I', HARQLD W. Buck," a citizenV of the United States, residing at Niagara Falls, in the county vof Niagara, State'of New York, have invented certain new and useful Improvements in Insulators, of whichl the following is a specification.

M invention relates to improvements in insu ators for high potential lines.`

The object of my inventionis the production of an insulator for supporting high po- .tential lines in Which there is no tendency to puncture andvin which the resistance to creepage can 'be-made vvery large.

.A further object 'of my invention is the production. ofan insulator Which is comparatively inexpensive 'and but little affected by rain.

In the drawing, Figure 1 shows'a front elevation of a sup ort with three of my insulators mounted t ereon; Fig. 2 is an 'enlarged detail view partly in section showing one form of my insulator; while Fig. 3 is 'a similar view showing a modification .thereof lI have shown in' the drawing a pole or support 1 carrying a long cross arm 2 bearing two of myinsulators, and a short cross arm bearing one of my insulators. The particular arrangementA yshown is "designed to carry high otential three phase transmission lines. he three insulators 7 shown are identical in construction. The are made of glass or porcelain, are tubu ar in form, and are encircled by a series ofrid es or corrugations 8, vand vcorr'cspomling epressions 9 to increaselthe distance over which the creepage current must travel. I

The axis of'the insulator is horizontal so i that the planes of the corrugations are` vertical. Wooden. blocks 4 are inserted in the ends' of the tubular insulators and in these wooden blocks are screwed' vertical upri hts or supports 5 having threaded ends 6. he

' supports 5 are secured in turn in any suitable manner to the horizontal cross pieces 2 and 3..

In Fig. 3 I have shown another embodivment of my invention inwhich the insulator is madeizf-Isolid and radial recesses 16' ,are formed near each end in which the supports 5 are screwed in the same manner as they are screwed in the wooden blocks 4 in the other form. In each case the conductor 10 Which it is desired to sup ort by the insulator lies in 'the depression 9 ocated between themiddle pair of corrugations or ribs 8 and is secured by the wire 11 in the ordinary manner.

The middle pair of ridges may be se arated to. a greater distance than the ot ers if necessary, to receive the Wire. y

Among the advantages obtained by my construction are the following: Thel insulator is a perfectly symmetrical solid of revolution, and is therefore easy to mold in porcelain or glass; secondly, the ridges or ribs are disposed invertical planes so that there is no tendency for water to drip' from one to the other as in the ordinary construction and thus electrically connect the petticoats;

thirdly, as there. is no iron or other conductor in the interior of the insulator there will be no tendency to puncture` and the insulator will have to be designed for surface leakage only so that a high grade 'porcelain or' glassV is not necessary. 1

What I' claim as new and desire to secure by Letters Patent of the United States, 'is- 1. In combination, an insulator comprising a solid cylindrical substantially horlzontally` disposed body formed out of insulating material and enciroled bya series of corrugations, means for supportingsaid body engaging the body only at its ends, and a conductor extending transversely to said bodi-y and supported thereby between va pair of a jacent corrugations.

2. An insulator for electric Conductors, comprising a cylindrical body encircled by a series ofcorrugations and having a socket or' recess formed in each end, and supports V forflsa1d body entenn said sockets or recesses and extendin radial y from said body. 3.1An insu ator for electrical conductors, comprising a solid cylindrical 'body made entirely out of insulating material, the said.

body being horizontally disposed', encircled by a series of corrugations and supported at its ends only. .I

4. An insulator for electrical conductors, comprising a longcylindrical bod made entirely out of insulating materia, the said bod being horizontally disposed and encirc ed by a series of corrugations, recesses being formed in the ends of said body eX- tending inwar'd from the "cylindrical surface of said body, and supports for entering said receses and sustaining said body,

5. lAn insulator for electric conductors comprising a cylindrical body of insulating material encircled by a series of corrugations and provided at each end with a support receiving opening or recess, and a pair of supports for the body, one catering thr recess or opening at one end of the body and the other in each end; and supports for said body enenterin the opening or reoesev at the opposite tering said sockets or recesses. 10 end of t e body. In witness Whereof, I'have hereunto set my 6. An insulator for electric conduetors 1 hand this twenty-sixth day of July, 1902. comprisin a horizontally disposed one piece i HAROLD W'. BUCK.

cylindrica body of insulating material en- 1Witnesses: ciroled by a series of corrugations and having WM. M. BLAIR, a support recexving socket or recess formed C. W. OLMSTED.

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