US1157036A - Insulator-supporting fixture. - Google Patents

Description

c. LIPEIRGE R. INSULA'TOR SUPPORTING FIXTURE.-

APPLICATION FILED AUG.B. 1914.

1,157,036, a Patented 0@t.19,1915,

WITNESSES.-

STATES PATENT ours-on.

28 L. PEIECE,:JR., OF PITTSBUBGHQPENNSYLVANIA, AS SIGNQR B ONE-HALF Tb $6335.53!) 85 00., OF PITTSBURGH, PENNSYLVANL, A CORPORATION OF PENN- I H Specification 0f Letters Patent.

Patented @ct. in, 1915.

Application filed new a, 19m. Serial No. 85:5,72'9.

To all whom it may concern:

it'lrnown that I, CHAnLEs L. PEIBCE, a citizen of United States, and a esident of Pittsburgh, in the. county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in l'nsulator-Supporting Fixtures, of which the following is a specification.

My invention relates to insulator support natures and particularly an improved fixture for supporting both the primary and secondary wires of an alternating current circuit. Among the important ObJQCiJS ot the nuvention are to provide an integral fixture on which both the primary and the secondary n y supported; to provide such integral e on which the primary Wires maybe no ted in horizontal alinement and on I the secondary wires may be supportvertical alinernent; to provide such lators may be applied to support the primary wires and on which spool type insulators vertically al-ined .to support the seco y wires; to provide a structure in which the insulators for the secondary'wires supported both at-the top and bottom and at a suilicient distance from the supporting pole to insure adequate insulation; produce a fixture which will require a minimum of pole space for its support and which can be fastened tothe pole with a inin' 11331 amount of labor; to provide such COL. truc'tion and arrangement for the supporting arms .Llliit there will be no uneven of the "wires or lateral swing of the arms when heavy wires or cables are applied to 3 -33, Fig. 2; Fig. e is a side elevational view showing a modified arrangement; Fig. 5 is a sectional view on plane 55, Fig. 4E;

(3 is an underside view of a supporting In the fixtures shown the frame B is bent arms 12.

shape and 'bent 'froim a single piece of stock wires of a distribution system may be eifi-' 1* ogral fixture on which pin type. of insu- 1 d and light, structure whicl' will up integral of sheet metal, preferably of channel shape cross section and comprises the vertical part and the horizontal part 11 extending from the top thereof, the

flanges a and iv extending inwardly. Ex-

tending horizontally inwardly from the vertical part 10 are a plurality of supporting In Figs. 1 to 3 thesearms-are of. V-

Inetal, preferably channel bar. The bend of each arm is expanded to form a loop 0, the

limbs 01 and c directly adjacent the loop bemg brought together as indicated at f-while the inner ends of the limbs are secured to .70 to be secured thereto byrivets g or by weld- 1 the, opposite flanges a and b of the part 10 ing. The limbs at f need not necessarily be secured together, but if desired rivets or welding could be resorted to at this point. The web it of the part 10 has a number of bolt holes 18 through which la'g bolts or through bolts inlay extend for fastening the fixture to a support such as a pole p. The

web it may be concaved inorder to more ac-- r curately lit the curvature of the supporting pole. 4 I

Extending through. the vertical alined loops 0 of the arms 12, is a bolt 14- for re-,

ceiving spool type insulators I, the insulators resting on the supporting arms.

The horizontal part 11 of the fixture has a plurality of holes through its web for receiving the shanks of suitable insulator. pins vided, these braces being secured at, their outer ends to theopposite flanges of the part 11 as indicated at 1? and their inner ends being provided with bolt holes 18 by means of which they may be, secured to the opposite sides of the pole. Under certain conditions only one brace would be necessary but under extra heavy service the two 1 The braces braces would be desirable, shown are in the form .of channel bars,- but it is evidentthat flat bars or other forms may be used. The inner ends of the braces are also preferably rounded to more accustrains, and the arms are mutually strength;

, y. In order to secure the fixture against lat eral swing braces 15 and 16 may be proi or by bolts, or by welding.

ened against sag by the interconnecting bolt 1-1 and theinsulators 1.. The web ol' the part 10 being rounded to snugly lit the 'pole, the fixture can be very rigidly secured supporting frame B and the bases of the flanges 21 and are secured to the flanges a and b of the part 10 either by rivets 23 In order to strengthen the arms and their support on the frame particularly against downward pressure, the body 20 of each arm is oil set upwardly a distance as indicated at m, and the inner ends of the flanges 21 and 22 are extended downwardly a distance in order to give greater bearing surface of the flanges with the flanges of frame 10, the bolt or rivet holes through the arm flanges being then preferably near the tops of the flanges, the extended flanges below the bolts then acting more or less struts or braces for the arms. At its outer end each arm has a hole or passageway 24- for receiving the bolt 14 which supports the insulators I.

In practice the primary wires are supportedon the pins on the horizontal arm of the fixture while the secondary wires are supported on the insulators I, the top insulator preferably supporting a-grounded neutral wire. The constructions above described are particularly strong and eflicient in supporting heavy secondary wires as the vertically extending and alined spool insu lators are supportedboth above and below by the sumvortingarms. Petticoat insulators on pins would not be sufliciently strong to bear the strains of such secondary wires and the pins would readily give or break. The pin supported insulators on the horizontal arm of the ffixture are, however, sufficiently strong, as primary wires are comparatively very light and there is usually only vertical strain on the pins. By having the vertical and horizontal parts 10 and 11 infthe form of the integral frame I5, much 'greaterstrength is provided than if such aparts were separated and bolted or otherwise detachably secured together. Furthermore, the cost of manufacture of such integral structure is agreat deal less than whereseveral parts are used. I

I do not desire to be limited to the exact forms, shapes and constructions shown as modifications may be made which would still come within the scope of the invention.

I claim as follows:

1. An insulator support comprising a vertical part having spaced apart flanges, a plurality of laterally extending supporting members each having a hole at its outer end. to receive a bolt and secured at its inner end to the flanges of the vertical part. and a bolt extending through the holes t the supporting members for receiving insulators.

An insulator supporting fixture comn-ising a supporting body having spaced apart flanges, supporting frames extending laterally from said supporting body, each frame being formed by bending a single piece of metal, the end of each frame being,

secured to the opposite flanges ot the supporting body, and a rod dctachably applied. to the various frames for receiving insulators.

3. An insulator supporting fixture comprising a body part in the form of a sheet metal channel, a plurality of supporting arms each having a hole at its outer end and secured at its inner end to the opposite flanges of said body part, and a detachable insulator supporting rod engaging in the alined holes of said arms.

l'. An insulator supporting prising a supporting member in the form of a channel bar, a plurality of V-shaped supporting frames extending from said supporting member and each provided with a hole at its outer end. each frame being secured at its inner corners to the opposite flanges of said supporting channel member, and an insulator supporting rod having detachable engagement in the alined holes of said frames.

An insulator supporting fixture comprising a vertical supporting part having spaced apart parallel flanges, a tier of arms extending laterally and secured at their inner ends to said flanges, the outer ends of said arms being adapted to detachably receive a rod, said rod being adapted to refixture com (JGIVU and to confine insulators between the outer ends of said arms, and a horizontal part extending from said vertical supporting part and overhanging said arms.

3. An insulator supporting fixture comprising a vertical sup 'iorting part having spaced apart parallel flanges, a tier of arms extending laterally and secured at their inner ends to said flanges, the outer ends 01 said arms being adapted to detachably receive a rod,.said rod being adapted to receive and to confine insulators between the outer ends o'l said arms, and a horizontal part integral with and extending from said vertical supporting part and overhanging said arms.

7. An insulator supporting fixture comprising avertical section and a l'iorizontal section, arms extending from the vertical section, a rod detachably secured to the Outer ends of said arms and adapted to confine insulators between the outer ends of said arms, said horizontal section overhanging said arms, said vertical section being adapted to be secured to a support, and a brace secured at its outer end to the horizontal section and adapted at its inner end. to be secured to the support.

8. in an insulator supporting fixture, the combination of a supporting body comprising a vertical and a horizontal section, said 7 body being bent from a single piece of sheet metal of channel shape cross section, a tier oi spaced apart supporting arms extending from' the vertical section, each arm being" bent into V-form from a single piece of metal, the inner ends of each arm being secured to the opposite flanges of. the vertical section and each arm having a hole at its outer end, the 'alined holes being adapted to detachably receive a rod for receiving and supporting insulators between the arms, the vertical section of the body being adapted to be secured by its web against a support, and a brace secured at its-outer end to a Web of the horizontal section and adapted at its inner end to be secured to the support to which the vertical section is secured.

9. In an insulator supportingfixture, the combination of a body comprising a vertical and a horizontal section, said body being formed by bending a single piece of sheet metal ofchannel shaped cross section and with its flanges extending inwardly, a tier of spaced apart supporting arms extending from the vertical section, each arm being secured at its inner end between and to the opposite flanges of the vertical section, a rod detachably secured to the outeilends or the arms for receiving and supporting insulators between said arms, said horizontal section overhan 'ing said arms, the vertical section being adaptedto'be secured by its web to a support, and a brace secured at its outer end to the horizontal section and wla'pted at its inner end to be secured to said support.

10. in an insulator supporting fixture, the combination of a body comprising a vertical and a horizontal section, said body being formed by bending a single piece. of sheet metal ofchannel shaped cross section and with its flanges extending inwardly, a tier of spaced apartsupporting arms extemi vig from the vertical section, each arm being eecured at its inner end between and to the opposite flanges of the vertical section, a rod detachably secured to the outer ends or" the arms for receiving and supporting insulators between said arms, said horizontal section overhanging said arms, the web of the vertical'section being concave to lit the curvatures of poles and having bolt holes, and a brace secured at its outer end to the horizontal section and adapted at its inner end to be secured to the support.

In witness whereof I hereunto set my hand this 28th day of July, A. 11 1914.

CHARLES L. PEIRCE, JR.

Witnesses RICHARD M. Knnscnnnn, WALTER V. KIRKWOOD.

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