US1243933A - Apparatus for reinforcing poles. - Google Patents

Description

e. HARDING. APPARATUS FOR REINFORCING POLES APPLICATION F |ILED APRTN, 1916- Patented 0m. 23, 1917.

inventor GEORGE HARDIN SPOKANE, WASHINGTON.

APPARATUS on nnmroncrne POLES.

To all whom it may concern -Be it known that I, GEORGE HARnING, a

citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented a new and useful Apparatus for Reinforcing Poles,

of which the following'is a specification.

The present invention appertains to means for reinforcing poles that, have been weakened through decay, and it is the object of theinvention to provide novel and improved means for the reinforcement of elevation.

telephone, telegraph, and other poles.

The present invention has for its object, the provision of an apparatus for providing a reinforced concrete acket embracing the pole within the ground and projecting out of the ground, whereby the pole is able to withstand the strains to which it is subjected, even though the pole was previousl rotted or decayed. v a

-With, the foregoing and other objects in view which will appear as the description departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a vertical section of the ap paratus as applied to a poleready to receive the'concrete, portions being shown in Fig. 2 is a horizontal section take line 2--2 of Fig. 1. I

Fig. 3' is an elevation of the concrete forms, a portion of the lower one being broken away.

Fig. 4 is a detail view of one of the spikes and its clip. Fig. 5 is a reduced detail view illustrating the concrete jacket upon the'pole, to reinforce it.

The pole is designated at 1, which may be taken to represent any wooden or equivalent pole or post, planted in the ground for supporting wires or other overhead structure. The first step in reinforcing the Specification or Letters Patent.

Patented oeuzs, 1917.

' Application filed Apri1'14, 1916. Serial No. 91,159. r

pole consists a holeinthe around the-pole,to expose the; rotted or de-' cayed portion thereof, which is removedby a chisel or otherimplement, as at 3, to ex-w pose the unrotted wood, which is painted by apreservative ornwater proof-compound to a 1 suitable; point above the surface of the ground to which. theconcrete jacket is to extend.-

Following nthe foregoing jpreliminarysteps, a metallic reinforcing;structure for the concrete is built up around the post.v

This structure'embodies a, pair of upper rings 4 surrounding-the post, and a pair'of lower rings 5 also surrounding thelpost .ad-.

jacentthe surface of the soil.- The. upperrings 4 are ofsmaller diameter than thelower rings 5, and whenv necessary. addi-. tional rings can be usedvto provide added strength. Thefrings 4 are all split, and

have overlapped ends, which are. at "differ ent points'about the pole to avoid the possibility of the ends oftheringsbeing, in avertical line, which would be objectionable.

These. rings 4 and 5, which are bent-from rods, bars, or other suitable stock, .aresupported by spikes 6 driven into .thepost ,1 immediately above the rings. Clips 7 en gage the shanksnof-the spikes adjacent the heads thereof, for supporting the rings.

The clips 7 are preferably formed from.

sheet metal having. the slits 8 through which the spikes 6 extend, andsaid clips 7 have the lower hooks 9 engaging under the rings to support them. Any number of spikes may be. used for supportingthe rings, as

- is found most advantageous, and said spikes on the serve to rigidlyconnect. the: rings with the shorter rods' or .bars 11,;which bars are suit ably spaced apart, as seen in Fig. 2, they 1 preferably. being .in alternate J arrangement.

The bars 11 terminatea short distance below the surface ofthe ground, while the bars.

10 are sufficiently long to be driven .into the 1 ground at the bottom of thehole2. The

bars -1011 bear against the rings from the inside, and said bars and rings are secured together by tie wires 1201' the like, whereby .96 I post. vVertical bars or -rods .10 are then inserted Within the rings "45, and also' to provide a rigid. reinforcing. frame surrounding the post adjacent and. above the cut away portion 3. The upper ends of the bars 10l1 are provided With outturned hooks 13 engaging over the uppermost ring- 4, to limit the downward movement of; the"- bars, and to connect the upper ends of the,

bars and the uppermost ring. I lhe amount of stock used in this" rni'forcmg structure or frame depends upon the circumstance/s and may be varied. The next step consists in disposed super: posed 'conerete'form's 14L 15 around the reinforcing structure, the lower fornrlt be:

ing cylindrical, while the upper one 15 which i seated thereon is1?ru's'tx'i-"cmrical Eaeh form isf rmed from a blankef sheet "metal" which is rolled into circular for with the edge; portions overlapping or meet ing-.'-f1he ferm le extends to apoint' near the ringst; while the form lo extends from the upper end of the form 145 to a--point slightly above the uppermost ring 4. K The form 15 is adapted to seat against the heads l S, supported thereby, in addition? 1 P Tsfing IiOI'I the upper end of the form 1 i I 7 Each of the" forms 14 15 is held contracted at the proper diameter,- by means of a chain 16 gr otherflexible' element embracingit,- and held in" place by strap's 17 at'- tached to the form the ends of the t an be ing connected by a suitable coupling 18;-

w When the apparatus is thus put in p'la'ce; concrete of suitable nature is poured into the forms let-15, and is camped therein;- The concrete will surround the rings 4'-5 and bars 10 11 as well as the spikes 6, and

and rotting the pole; The pole when thus reinforced- 'will ;be of substantial construewith sacks; er the like; which are kept in a moistened condition for a 'suflicieht period of time, until the concrete has set; The forms are then removed, and the hole 2 is filled up; so as'to pack the ground "around the concrete jacket 20 which nbwiembra'ces the p'ol'e; Said ja'cket' will be embed' ded'in the ground and will project out bf the ground; the projecting portion-of the jacket being of tapered form, while the basal poi' 'tion thereofhis of cylindrical form;- The upper end 01- the vjacket 20. is provided with aredessQl formed by the form 19; in which an elastic water proof compound 22.. placed, to prevent water entering the jacket ti'oir, to renew the life thereof; I i 7 *Due to the fact that the pole is painted with a waterproof compoundgrthis prevents the pole from becoming wet by the water used in the concrete, or prevents the wood from absorbing the moisture from the concrete, therebyavoiding the expansion of the poleand the breaking of the concrete before it has had time in which to set. If the con- Crete sliould'b'e cracked or ruptured beiiore it is set thiswould naturally spoil the concrete jacket; Pdls" which are completely rotted ofican be reinforced just as readily as those that are only partially rotted off. The'con c'reteuse'd consists'of cement, clean sharp sand and crushed rock slag or gravel not larger than 2 meshand not smaller than t mesh: The" waterproof ceinpeund '22 should be elastic in order to expand a'ndcontractwith the" pole; and to form: per;- I

feetclosure.- v c The SPIkGS" or nails be disposed either above" or belowthe rings, andwhen' driven into place spring the rings to the desired diameter; and also serveto center the con crete forms about the reinforcingstructure; as Well as to partly support the upper term. The rings areadjustable" to t-he size of the pole since-the rings are sp'lit.-- The concrete formscan be" used on all poles of ordinar sizes, and the chains. serve to adjust the forms to the particular pole. form can have clips or other means for fa cilitat-ing the removal thereof fromthe hole;

Having thus described the invention'; what claimed as new is: v

1. The combination With pole, of man:

nular reinforcing structure surrounding it,

and members entering the pole and sup ported thereby; said members extending lFhe' lower across portions of said structure and having their outer ends" projecting outward'l-yfromsald structure for spacmg a form therefrom;

said members being providedwith portions between their ends projecting at an angle therefrom and moved inwardly into' en ageor mentlwith said portions-of said structure supportingsaid structure from said members and holding the structure inposition about the pole.

2-. The combination with a pole; of rings" surrounding the pole, vertical'ba-rs assem= bled with the rings, spikes driven into the.v

pole and eXtendin-g across portions of said rings, and hooks earned by the spikes and moved inwardly into engagement with'the rings .for supporting them fromwthespikes,

.12C outwardly from the ringstospace a form and the outer ends of the spikes-projecting;

therefrom. 3;, An--apparatus=.for, reinforcin g poles comprising split rings to surround apole spikes adapted to be driven into the pole clips carried by said spikes and engageable with said rings to support them; and vertical bars within and attached to said rings.

4. An apparatus for reinforcing poles comprising split rings to ermane pole In testimony that I claim the foregoing as my own, I have hereto aflixed my signa- 10 ture in the presence of two Witnesses.

GEORGE HARDING.

spikes adapted to be driven into the pole across said rings and having heads at their outer ends clips engaging the shanks of the spikes adjacent the heads thereof and upon the outer'sides of said rings, said clips having hooks engaging the rings to support Witnesses: them, and vertical bars assembled with said M. L. MOE, rings. L. K. SNYDER.

Copies of this patent may be obtained for five cents each, by addressing the Comimissioner of Patents.

Washington, D. 0.

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