US1429110A - Insulator - Google Patents

Description

APPLICATION FILEDIUEY3-1MB- l ,429,1 10. A "PatentedSeDt 12, 1922.

2 SHEETS-SHEET 2.

nunllllr of the insulator,

Patented Sept. l2, 1922.

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To all whom it may concern:

Be it known that I, Hamam' D. Smver, a citizen of the United States of America, residi at Greenfield, in the county of Franklin, State' of Massachusetts, have invented certain neit" and useful Improvements in Insulators, of which the following is a specification.

My invention relates to insulators and particularly to insulators of the suspension or, strain type, the object of my invention being to provide im roved means not only for connecting toget ier the insulator units but .also for connecting the insulator as a whole to its support at one end andl to the cable at the other.

In the acompanying drawings, 4

Fig. 1 is a vertical section, partially in elevation, through a suspension insulator in which my invention is embodied im one form;

F ig. 2 is connections, taken at right a section of the top unit and its angles to Fig. 1;

Fig-3 is a s'milar view of the bottompe unitis a plan of the anchor .plate at the topof the insulator;

ig. 5 is a side elevation thereof; Fig. 6 is a vertical section through a strain insulator to which my invention is a plied. The particular construction ofV e in sulator units forms no part of my invention. I hiive shown, for convenience of illus-V tration, units of common type comprising a flanged disk 10, the central or hub portion 11 of which is pierced by channels 1 2 Vand 13 l ingA at right angles to each other and t rough which connector loops may be to join the units together or to'the evis by which the insulator is engad with either its support or the line wire The 'connector loops here shown comprise lengths of stranded stelcabl'e 14, the ends of each length having terminal enlargements formed theieon, here indicated as cones 1b. In uniting adjacent units, a connector loop is threaded'through the passages 12 and -13 of the respective units and its coned ends clamped between the approgiriately shaped juxtaposed faces of a pair o lampplates 16 and 17 which are drawn together by a uareshanked carragebolt 18. f At he yiidof the insulator string, the

it is and, on the other preferably somewhat.

shorter thanlthat used between the units, and

the' cones 15 are engaged in an, anchor-19.

This anchor is here shown in the general forni of a plate radially slotted at 2l) to permit the cable 14 tobe passed laterally therethrou h into conical sockets 21 which form seats or the cones 15 at the cableends. The

slots may be vertical, as shown in Figs.y

1 and 2, but they are preferably inclined to the axis of the socket 21, as shown in Figs. d and 5, so as to prevent the escape of the cable therefrom should the cones be accidentally unseated. sockets 21 are used for connection with the cable loop 14, the plates preferably have tivo pairs of sockets lying in planes at right an les to each other to receive the loop in cit er position and thus to accommodate' the position of the anchor plate to tle requirements of the particular installation. The ppper anchor plate 19 is preferabLy pro- .'i ed with a pair of lugs 22f-23, between which is received the shank 24 of the susnsion hook 25 which takes into the eye 26 of the bolt.27 secured. to the cross arm or other sup 28 for the insulator. At the lower en of the insulator the anchor plate 19 has but a single lug 29 which is received between the4 lu 30 and 31 of the line wire clamp 32. In h cases the lug 29 or lugs 22-23 are secured to their cooperating membei'. by a Vbolt 33 passed therethrough and secured in position b a cotterpin 34.

In Fig. 6 I have plied to -a `strain insulator. In ,this case one anchor plate 19 is connected tothe insulator clamp for the jumper loop 36,

assed .while thehook 25 is engaged with the support 37.

As previously stated, the type of insulator unit with which the present hardware is utilized may be of any suitable construction, and 'I do not limit my invention ticular type shown. any event, serve to distribute the strains, and the end connections to the line wire and supphrt, respectively, are of suchfnatnre as to remove the danger of injugesti the cable loo incident 'to weer at points, at which failure most i uently occurs. Moreover, the loop connections, on the one hand, to the clamps 16 and 17 between units hand, to the anchor plates are such that While but twol they are not only quickly own .my invention apto the par x The mcher. plates, in`

and easily made, but also neadil made by a single lineman-dilfering in t isrespect from the loop connections now in common use in which the installation is not only Vslow and laborious to make, but necsitatesthe presence of two linemen to accomplish the work. Again, the devices used are flexible in the sense that they may be readil adapti ed to different ty existing installations.

of insulatorsfc auge in the length of the Insulator, and to repairs of I do not 'limit my invention to the precise form of construction shown, which may be various! modified to accomplish the same end without departing from what I claim as my invention.

I claim:

An anchor for an insulator connecting I having radial slots sageways leading loop, said anchor comprising an anchor plate having means projecting at right angles to the plane of the plate and substantially from the center of the latter for establishing connection between the anchor and a, hanger.

said plate having two airs of sockets lyinl in the same plane anni, spaced aroundv sai centrally project' means, and being of a. shape to receivemte; enlarged heads of a connection loop, the margins of the plate which form lateral pasto said sockets to permit the lateral insertion of the Shanks of the connector loop to as described.

-`In testimony whereof I have signed my name to this specilcation.

ER D. SEAVEY.

said sockets, substantially

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