US883397A - Insulator. - Google Patents

Description

No. 883.397. PATENTD MAR. 31, W08.

W. T. GODDARD & J.' S. LAPP.'

INSULATOR AYPLIGATION FILED JULY 29.1907.

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Specification of Letters Patent.

INSULATOB Pstemetimarch si, i908,

Application tied July 29, .1907. Serial No. 385,947.

fooll whom it 'may concern? Be it known that we,NAL'r Eii T. Gonnaiiii andJoiIN S. LAP?, oi' Victor, in the county olf` Ontario and State of N ewYork, have invented certain new and useful Improvements in lnsulators; and we do herebyI declare the iollowing to be a full,rclear, and exact descrip tion of the saine, reference being; had totthe acconipan infgr .lrawings, forming;r a part ci this speci cation, and to the reieireii-ee-ni-i morals marked thereon.

This invention relates to .insulators of the type used 'for sus )ending conductors.

An insulator element having a maximum length and a minimum cross section is very desirable in a sus ending insulator, but ow ing to the fact t at the material oi which these elements are made has very'little tensile strengtli,'tliis form has not been used,

and it, therefore, is an object of this invention to rovidea construction. of insulator which will permit tlioiise oi such an element. To these and other ends the inv'eiitioi'i consists in cert-ain inipiovoinei'its and. coinbiini4 tions and arrangements of parts, all will be hereinafter inore fully described, the novel. features being pointed out in the olaiiiis at the end of this specification. l

In the drawings: Figure i. is a side View of an insulator constructed in accordance Withthis invention and showing one man el of using` the saine. Fig. 2 is a View slio ii 'f another manner oi" using the insulator. Fig.

3 is a broken longitudinal section of the insulator.

ln the embodiment of the invention shown, l indicates a long7 narrow tubular insulating element of comparatively low tensile strength, such is porcelain corrugated transversely if desired to prevent eontinuiius i'ilni oi moisture. Arranged within this .tube is a 'tension ineinber which is connected to heads in the iori'ii of caps 3 closing the ends of the tube and beingr secured thereto by anyT .suitable means, cci'iient 4, the opposed s being roughened to hold the cement,l 'lY ie tension ineinbez preferably comprises an insulating element 'l5 made of a material having a high tensile strength, preferably asbestos or other in organic fibrous material made into rope forni., and secured to the caps in a manner to sustain the tension on the insulator independ ently of the tubular inaulat'ng element.

The secur'ng meansl in this ins-taime coin,

material l sists oi" cap pieces i6 Alitted on the insulating element i5 und each having a screw thread ed extension i7 which passes through an .opening i8 in oneoi the caps 23 and has fitted engaging the inner lace of e0 thereto a nut if?, the cap and a nut 2() engaging the outer 'lace of the saine and provided with an eye 2l to receive a ring 22 or other attaching device by which 'the insulator is secured. The securing means oi the jueted by the nuts lll and 2O that inostfall of the tension on the insulator is placed on the tension ineinbei and very little sustained by the insulating element 1 and a conselt will be apparent that withthe present invention the advantages of both insulating tension ineinliei is so ad- 'quence the life ot the insulator is increased. 7()

elements have been secured without the disadvantages o' either, lfor while the brous material lu porcelain moisture e une, the latter Will not absorb id as it incloses the fibrous material, will previ-nit it becoming Wet.

We claim our invention,

i.. ln insulator, attaching devices,- a pair oi tensi i. elements niade of insulating soun .cti/ig the attaching;g devices ditte; :nt tensile strength.

an insulator, attaching devices, a

and ii ating vfreati'ar tensile strength than the 75 and 30 tension element niade of insulating material 35 connecting said devices, and an insulating @lenient surte'. nding the first mentioned ele .lu an insulator,l attaching' devices, a tension inernhei` inade of connecting said devices, and tubular insulating el@ nent surrounding said r:member throughout the length of the latter.

e, ln an insulator, attaching devices, a

insulating material fibrous insulating eleinent connectingI said devices, and a tubular, insulating element surrounding the fibrous element.

`5. in an insulator, a pair of attachin devices, an asbestos rope. connecting sai de vices, and a tubular insulating element sur 10o element,

In an insulator, a tubular insulating tubular element,'cap ieceson the ends of element, caps secured to the ends of said in-,

`sulating element, and a ibrous'insulating ele ment connecting the caps.

9. In an insulator, a tubular insulating element, caps secured to Vthe ends of said insulating element, anda non-conducting tension rnei'nbdconnecting the caps.

10. In an insulator, a tubular insulating element, and an asbestos rope surrounded by the insulating elementand acting to sustain Y the tension on the insulator.

1l. In an insulatorfatubular insulating element, caps secured to the Yends ofthe insulating element, an 'asbestos rope within the the rope, having threa ed extensions extendf ing through l-the caps, and nuts on said extensions engaging the inner'and outervfaces of the caps; l i

1.2. In an insulator, a long narrow tube made of insulating material, attaching devices arranged at the ends of the tube, and an insulating tension member connecting said attaching devices.' v

' WALTER T. GODDARD.

JOHNS. LAPP; f

Witnesses:

WILLIAM W. STANLEY,

BRIDGET J. MCGRAW.

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