US907834A - Insulator. - Google Patents

Description

G. B. MARSHALL.

INSULATOR.

APPLIOATION HLBD .001'. 9, 1908.

907,834.. Patented Dec. 29,1908.

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Y l A i fg' j l n l I Snowdon GEORGE B. MARSHALL, or sHANNoN, Texas a l Specification of Letters Patent.

I Application filed October 9, 1908. Serial No. 456,967.

INSULATOR.

Patented Dec. 29,- 1908.'

To. all whom it may concern:

Be it known that I, GEORGE B. MARSHALL, a citizen of the United States, residing' at Shannon, in the county of Clay and State of Texas, have invented a new and useful Insulator, of which the following is a specification.

This invention has reference' to improvements in insulators and it is designed toy pro# vide a simple and cheap insulator Aadapted more particularly for attaching electric conductors such as telephone wires or telegraph Wires to walls or other such structures and more particularly to brick Walls and posts or trees or even wooden structures.

The improved insulator comprises a spike adapted to be driven by a hammer intothe mortar between 'bricks in a brick Wall or into trees or into frame'structureavand on one side of this spike there is formed a clip adapt# ed to embrace and hold an insulating button or washer.v

The invention Will be best understood from a consideration of 'the following detail description taken in connection'with the accompanying drawings, forming a part of this specliication, in which' drawings,

Figure 1 is'an elevation ofthe device before the insulating button is applied. Fig. 2 is a similar view of the device with the insulating button in place. Fig. 3 is a section on the line A-B of Fig. 2. Figs. 4, 5 and 6 are views of modiiied forms of insulating buttous. I V f Referring to the drawings there is shown a spike 1 having a ointed end 2 and a hammering end 3. e spike is designed to be driven into the mortar between bricks or into a tree or into a wooden structure by applying v the point- 2 to the place where the spike is to be driven and then striking the end 3 with a hammer or other roperl implement;

vOn yone side of t e spike near the end 3 there is formed a finger or clip 4, bent toward the pointed end of the spike and then returned on itself toward the end' 3 thereof until the clip is in the form of/an open loop of substantially circular contour.- This clip is furthermore curved in a direction at right angles to its superior curve so as to form a channel as best shown in Fig. 3.

As manufactured theclip 4 is sufliciently spread at its open end to receive an insulating button 5 preferably of4 circular outline and with its periphery rounded in the direc# tion of its longitudinal axis and the button has-a central perforation 6 of a size to readily permit the passage of a telephone wire or conductor` of the insulated type.

In the drawings the button 5 is shown as of circular outline but it is to he understood that it is not necessarily of this shape a1- though it is enerally preferable to so construct vthe bu ton 5.

In putting up the conductors it is customary to string t e insulating buttons 5 uponl the conductors and then after the spikes have been driven in the support to introduce the buttons in the clips 4 and with a hammer or other suitable tool to close up the clip until the buttons are iirmly clamped in the clip .against the possibility of accidental displacement. By closing the open end of the clip so that the free end approaches the spike 1 the button 5 is prevented from escaping through such openend and the laterally curved or channel form of the clip holds the' button against laccidental displacement in the direc, tion of the length of the conductor.

Instead of making the button 5 with a central perforation 6 so that it becomes necessary to string the buttons u on theelectric sol conductor the buttons may e made. with a radial slot 7 leading fromthe central perforation 6 to the edge of the button and Wide enough to permit the. button to he simply slip ed onto the conductor in an direction radia to said button. Now when the yinsulating button is placed within the clip 4 and the latter is closed up toward the spike 1 the button is forced together at the slot until the latter is partially or wholly Vclosed up. Of course in this construction the insulating button must be made of some material which will yield to -pressure circumferentially applied withoutcausing the button to become roken at the point opposite the slotv7. y When insulating buttons of material which is not adapted to stand bending are used then they may be made of two arts as indicated in Fig. 6, the division line eing shown at 8.

All the forms ofinsulating buttons are wellada ted for use in connection with the para ticu ar form of cli of the device forming the 'subject matter o the present invention.

lab ymalleable iron and the cli may of such size as to accommo ate lnsulatlngv It w1ll be understood of course that the cli 4 is made of malleable materiali) preferbuttons of a suiciently great diameter' to prevent the passage onf-current from the con-` `ductor' to the'spike.

e made -v without the necessity clip ormedon one si It is to be noted that the clp 4 is especially adapted for clam ing insulating buttons such as shown in other type, of button-Where the insulating but-,ton may be applied to the conductor of Stringing it thereon. Whatisclaimedisz A, A `1. v,An insulator com rising a spike with a e thereof and.y having one face concave,said clip beingad'a vted to be bent on itsel with the concave ace inward to gras an insulator'structure. f

2. An msu ator comprising a spike clip formed on one side thereof, said'cli being of'channel form in cross .section an also adapted to be bent on itself'to grasp an insulator structure.

` 3. An insulator comprising a spike With'a clip formed on onel side thereo', said -clip being adapted to be bent on itself and an insulating button adapted' tobe conlnedin said clip and rovided witha passagelfor an electric con uctor. f.

4.' An insulator comprising a spike with a' clip formed on lone side thereof Ysaidclipjbeing of channel form and also adapted'- to be bent on itself, and an insulating button havits p 15 clip, Aigs. 4 and 6 or any- `length of the conductor with' a eriphery shaped to seat in the chanv said button being provided with a passage for an electric conductor and adapted to be encircled by the clip and locked to the spike thereby.

5. An insulator comprising a spike with a clip formed on one side thereof, said clip being adapted to be bent on itself, and an lnsulator button provided with means for the reception of an electric conductor lateral to the and to be locked about the conductor by the grasp of the clip. 6. An insulator comprising a sp' e with a clip formed on one side thereof, said clip .being of channel means for the reception of an electric conductor lateral to the length of the conductor and to be locked about the conductor by the y .GEORGE B. MARSHALL. Witnesses:

G. W. MCDANIAL, M.. H. MsRsnALL.

form and also adapted to be y .bent on itself, and an insulator provided with

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