US816981A - Cross-arm for electric or signal wires. - Google Patents

Description

No. 816,981. PATENTED APR. 3, 190a.

' A. H. ILIOHAN.

GROSS ARM FORBLEGTRIG 0R SIGNAL WIRES.

APPLICATION FILED MAB..21,1905.

2 SHEETS- SHEET 1.

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PATENTED APR. 3, 1 906 A. H. ILIOHAN.

CROSS ARM FOR ELECTRIC 0R SIGNAL WIRES.

APPLICATION FILED MAR. 21, 1905.

2 SHEETS-SHEET 2.

, moisture from coming in cont act with the other preferred sulator support greater than that arm, and thence to-the next pin or bolt and Specification of Letters Patent.

Patented April 3 1 906.

series. The several parts may be readily disposition or associated by a lineman, and the proportions, dimensions,

Y e varied to compen- 6o useful mprovements in Cross sate for various applications and uses. It is Electric or Signal Wires of WhICh the follow a so intended to vary the materialsin the coning is a specification.

s inventionrelates to a cross-arm for telephone and telegraph poles, or it may serve as a means for holding wires at any other points where it may be found applica le.

struction of the several '0 the particularly applied insulating devices it will be understood that glass, porcelain, wood, or composite substances may be employed.

In the drawings, Figure 1 is a perspective view of apart of a pole, showing the improved cross-arm applied thereto. ig. 2 IS an enlarged transverse parts, and in the use vertical section through more particularly intended to prevent the si the cross-arm, taken in the plane of location na s on a telephone or telegraph wire meetm of one of the pins, bolts, or insulator supwith interference by being crossed with anports Fig. 3 is a detail elevation of one of other circuit on the same pole during rainy the loc ing organizations for a part of the'75 or foggy weather. insulating and protecting means. 4 is he cross arm essentially consists of a a detail perspective view 'of a portion of a piece of timber or other suitable material pole an the improved cross-arm showing a aving a protective covering dependin slight modificatlon 1n the position of the intherebelow in the form of a skirt and surs ators Fig 5 is an eldvation of a portion rounding the sides and ends and carr 'ng of the pole and cross-arm, showing a further one or more pins which depend therefrom jmodification in the position of the insulators and project upwardly above the arm proper imllar numerals indicate corresponding at a distance from the side of the latter and parts in the different views.

have terminally Referring to Figs. 1, 2, and 3, the numeral designates the body of the arm, which can be of any suitable length and thickness and constructed from any referred material; -wood being well adapte for ordinary urposes. Covering-strips 2, 0t

insulators. e pin or inis headed in the body of the arm and capped by an insulating means located on the top of said body over the sides and ends strips extending fully structed a ther effective auxihar of t e body from the u per edge of the latter, 5 t e part of the pin passing downwardly from and th e upper termina s of the strips are beveled downwardly, as at 3, ready escape therefrom of may settle on the top of the arm as an entirety. Any moisture that flows downwardly over the outer surface of the stri s is deflected ofi from the lower terminal 0 the skirt by outwardly-inclined lower surfaces 4, whic are provided b thickening the said lower terminal of the s irt or the strips composing the latter. This thickening of the ower terminal of the'sk irt also stren thens e same and tends to keep the entire siirt in The body 1 has one or pins or bolt to insure a flow or skirt is protected by an insulatingtube, prefanymoisture that erably of glass, aving an interior diameter of the pin and terminating coincidentally with the lower end ofthe skirt. 's means for protecting the pin, bolt, or support for the insulator with respect dy of the arm-and also shielding the arm by a skirt surrounding the same and depending therebelow has the advantageous effect of obstructing conveyance of the curfrom one insulator down the dust, dirt,

or moisturecovered pin or bolt to the cross proper normal shape.

.more vertical op mngs or holes 5 extending shown equipped in the present instance with member 8"above the top tial shoulder .17 to snugly bear The lower extremity .body,

four insulators and as'many plns, bolts, or supports 6, which extend through the said openings 5. The number of the pins, bolts, or supports 6 is not essential, however, an in lieu of the ordinary short pin for supporting the insulators each pin or bolt in the present instance is of considerable length and depends below the lower terminal of theskirt 2 and is deflected to one side b a bend or-elbow 7 and continued upward yin a vertical of the body 1 tomeeive a orcelain, glass, or other insulator 9, of usua construction. Each pin or bolt 6 has considerable bearing di' extent within the body .1 to strengthen the entire structure, and around the upper terminal of each opening or hole 5 a nut-cavity 10 is formed in the into which the upper screw-threaded end 11 ofthe pin or bolt projects to receive a nut 12, cooperating with a washer 13, bearing on the floor of the cavity. The wall of the cavity is screw-threaded, as at 14, to receive the depending screw-threaded member .15 of a cap 16, the cap also having a circumferenon the upper side oredge of the bodyl around the cavity. of themember 15does not, contact with the floor of the cavity, and the cap has an inner central recess 18 of such dimensions as to fully inclose the nut without contacting with the latter or the pin or bolt extremity. The cap 16 is readily applicable to and removable from the cavity 10 and is composed of any suitable insulatingmaterihl, and by the use of this cap the nut and boltare completely shielded from the weather and rendered more durable, and moisture is 'the'reb prevented from runmng-downoverthe bo t and ermeating the body .1. :Dirt

- and dust are a' so prevented by-thiscapfrom respect to the body 1.

' collectingaround the upper end of-the {Pill-01 bolt. To facilitate the ap licatlon of the nut 12 to the upper screwity 11 of-the pin or bolt 6, the latter hasa collar. .or stop projection .19 surrounding the sameat ..a suitable distance from its screwthreaded extre 'ty .1I1 and ad apted-to bear against the underside ofthebody 71. This collar or stop projection 19 also assists in the lt Wltll accurate assemblage of'the pin or be The cross-arm .as

therethrough, the arm being tubular inclosure being such as to clear the pin or bolt. The sleeve or tubular inclosure 20 may be'of anythickness and preferably terminates I at its lower end coincidentally with the lower end of theskirt and is thus shielded by the latter. The upper end of the sleeve or tubular inclosure is let into a groove 21 in \the under side of the body 1 and surrounding the lower terminalof each opening or-hole 5. The upper end of the sleeve or tubular inclosure is formed with diametricallyopposed supporting projections 22, which are preferably engage inwardly-facing oppositely-disposed springcatches oryielding l cks 23 0 early s own' by Fig. 3 and dependin from plates 24, secured to the under side-o the body 1, close to the point where the upper end of the sleeve or tubular inclosure engages the groove 21. The spring-catches or yielding locks 23 each have a pair'of jaws separated at their lower extremities to permit the supporting projections 22 to be pushed upwardly therebetween in applying the sleeve or'tubular inclosure to -t e body '1. By means of these spring-catches or yieldinglocks and the disposition of the upper terminal of the sleeve or tubular inclosure in thegroove 21 said sleeve or inclosure is reliably held in firm engagementwith the body 1, though capable of bein sired. It will a so be seen that-each of the pins or'bolts'be rovided with a double protection around t e -.portion thereof deending below the under side of 'the body 1 of the skirt 2 and the sleeve or tubular in-' closure 20, and in assembling the'pins or bolts Iinthe body 1 the screw-threaded extremities 1-1 thereof canbe :readily pushed upwardly through thesleeve or tubular'inc'losure 2O and the openings orholes 5 to receivedhenuts .12. 1 After are then placed lII' POSltlOI'I, as shown.

In the @modification shown by Fig. 4 the same =referenee+numerals are applied as in .the preceding figures, and theconstruction ofthe arm and with'the exception that theilatter d'o-notproje'ct above the cross-arm,,

lower edge of'the armand proj ected laterally. In-the modificationv shown =by:Eig.-'5 theieonstruetion isalso similar-zto that heretoforeset thus far. described can-attimesbeusedWith forth by Figs. :1, 2 ,and 3with xrespect to the out any other proteetive.-auxiliary;but to renicrosssar'ms, and the: ins 25 are-straightand tier-the cross-arm organization-more positive carry -insulator s,26 iren'tly-under lthe lower in preventing surface-cross with @respect to edge or bottom of the cross -.-arm. These the several wires thatmaybecarriedthreby modificationsein theiarra ementio'f thepins 7 sleeve-or v movabl'y attaehed;to =the-zunderside of (the and eonnectedato theinsulatorssu "theportion e Pr or bolts an elongated =msulating t'iibular vinclosing device ,20 is re or-rods are intended proved cross-arm mayrbeemployed-with any orm 'of ;pin or red and -thatrthe insulateror From the foregoing description at :will he l'observed, that moisture is prevented from the nuts are applied *thecaps 16 but-are :eurtailed- 'and the insulators are positioned below the insulators do not have ito *be located zinzany I ,precise manner to render ithe iarm efieetive. r

detached at any time de- 1115 orzrodsare duplicated,

:toxin ieate xthat Itheirncoming incontact any point near the cross-arm body.

aving thus described the invention, what is claimed as new is-' 1. n a cross-arm for the purpose set forth, a bod a continuous pin aving one extrernity removably secured in the body and depending below the latter to one side and above'the same and having an insulator on its free terminal, the secured end of the pin in the body being accessible from the top of the latter and also the body, and an insulating-cap rely applied over. the end of the pin secured in the b per side of said body.

A cross-arm for the purpose set forth having a' body with a protective covering sides and ends of the same ,above the body, and an fiee terminal of the pin.

In a cross-arm for the purpose set forth, an insulating-body having cavities formed in the pins above the body, securing devices aplied to the extremities of the pins projecting into the cavities, and insulating-caps removhe cavities over the securing devices and the extremities of the pins engaging the body, said insulatin 7 -caps bearing on the upper edge of the body and rendlering the securing means for the pins accessi- 4. In a cross-arm of the class set forth, an insulating-body, pins secured in and depending below and to one side of the body and having insulators on their free extremities, and tubular insulating-inclosures separably applied to the under side of the body around portions of the pins.

5. In a cross-arm of the class set forth, an insulating-body, ing below and to one side of the body and havng insulators ontheir free extremities, and

.the under side insulating-inclosures removably applied to of the body around portions of the pins.

6. In a cross-arm of'the class set forth, an

insulating-'body,,pins secured in and dependng below and to one side of the body and hav- P rtions of the pins depending from the body with the pins or bolts at Withdrawable'downwardly I ody and accessible from the up- .lating-caps removablyapplied side of the c osures removably applied to pins secured in and dependand having projections at their terminals and spring locking devices with which the said projections removably. engage.

In a cross-arm of the class set forth, an insulating-body, continuous pins secured in and depending below and to one side of the body and having insulators on their free extremities, insulating-inclosures removabl surrounding ortions of the pins depending below the b0 y and having their upper ter- Ininals inserted in the body, th tremities of the inclosures having pro ections an bly engage. n a cross-arm for the purpose 'set forth, the combination of a body having a protective covering surrounding the 'sides and ends of the same and depending therebelow in the form of a skirt, tubular insulating-inclosures a plied to the under side of the body within tl ie skirt, and continuous pins or bolts sethrough the inclosures below the skirt and outwardly from the latter, the free terminals of the pins having insulators applied thereto. tinuous pins or bolts secured in the said and dependin below the latter, the secured terminals of t e pins or bolts being exposed at the, upper side'of the body, insulators on the free extremities of-the pins or bolts, insuto the upper bod over. the secured terminals of the pins or bolts, and tubular insulating-in the under side of the body around portions of the pins or bolts.

nals of the pins or bolts being exposed at the upper side of the body, insulators on the free extremities of the pins or bolts, insulatingcaps removablyapplied to the upper side of e bod over the secured terminals of the pins or olts, and a protective covering ap plied to the sides and ends ofthe body and extending below the latter in the form of a skirt.

11. In a cross-arm, an insulating-bodyhav ing openings extending therethrough and cavities in th e upper portion communicating with said op enings, continuous pins or bolts body, and protective insulating-caps applied 9.; In a cross-arm, an insulat1ngbody, conbody IIO 12. In a cross-arm, an insulating-body having 0' eningsitpxtending therethrough and g from the sides and ends a skirt epen or bolts inserted thereof, continuous pins through the openings of the body from the underside of the latter, means for securing thepins or bolts in the body, the said pins or bolts projecting below the lower edge of the skirt and having insulators on their free ends, and insulating-inclosures removably applied around the-portions of the pins within the skirt. v

13. In a cross-arm, an insulatingbody having openings therethrough,pins or bolts inserted 1D. the said openings and depending below the body to recei e-msulators, spring look devices secured in opposite positlons Witnesses:

against the underside vof the body and having jaws separable at their lower extremities,

and tubular. insulatinginclosures surroundends of t mg portions of the pins or bolts extending be low the body and provided with projectionsto 'rerhovab enter between the said jaws and hold the inclosures in close relation to the under side of the body. 7 j

14. In a cross-arm of the class set forth, an insu1ating-body,. ins secured in and depending below the b0 y and having insulators on their free eXtremities, tubular insulating-inclosures removably applied to the underside of the body around portions of the pins, and

a skirt de ending from the body, the lower e tubular inolosures terminating flush with the lower edge of the said skirt.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- ANTHONY-H. iLroiIAN.

DANIEL CALNEN, Roma L. ELLZEY.

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