US925940A - Post-foundation - Google Patents

Description

, J. L. MGOLINTOGK.

POST FOUNDATION.

APPLICATION FILED MAR. a, 1909.

925,94 latented June 22, 1909.

base.

JAMES L. MCcLiNroox, or eLEAnwA'riiR, xANsAs.

Postr-FOUNDATION.

Specification of Letters Patent.

Patented June`22, 1909.

Application filed March 3, 1909. Serial No. l281,126.

i' To all whom 'met' co nce-ra:

Be it known that l, laines li. MCCLiN- TOCK, a citizen of the United States, residing j at Clearwater, in the county of Soxlgwiclxi and State of Kansas, have invented new and l useful lmirovements in Post-Foundations, of which t 1e following is a specification.

This invention relates to post foundations and more particularly to a foundation formed of concrete or cement.

The object of this invention is to provide a foundation for a post which will be absolutely rigid and at all times retain the post in its original position under all conditions. This foundation Will act in the same manner with a built u concrete post or with. a Wooden post ein ed'ded therein.

The advantages of this foundation are obvious and apply to all posts subject to an unequal strain, such as a gate post, a corner post for a fence, a telegraph pole or a flag pole. f

The preferred form is illustrated in the accompanying drawings, yet it is to be understood that minor detail changes may be made Without departing from the scope of the invention.

Figure 1 is a view in vertical section through-one form of my improved foundation.v Fig. 2'is a plan Iview of the same. Fig. 3 is a plan view of a modification. Fig. 4 is a view in elevation of a modification showing the foundation in vertical section. Fig-5 is a sectional view taken on the line V, V of Fig. 4.

ln F ig. l, which illustrates a form of my invention as applied. tn a gate post, l representsthe upper face of the surrounding soil, 2 the loose surface soil and 3 the solid subsoil. 4 is a substantially circular base extending *o a considerable depth in the subsoil. i, is a gate post embedded in said In this instance the gate post is used inconnection with 'a wire fence and as i is necessary in making fences of this description to place the longitudinal strands under great tension, the gate post 5 will be subjected to a considerable strain in the direction of the arrow a. 6 is a siur iroiccting from the upper portion of tie ase 4 to about the depth of the surface soil'2 and in the direction i' the previously determined strain upon the post 5. 7 is a projection on the underside of the spur 6 near the outer end thereof extending into the suhsoil 3.-

The base 4, spur 6 and extension 7 are all formed of concrete or cement. 8 is a stake extending through the projection 7 to a considerable distance into the subsoil 3,- preferably'below the base 4, and its head is embedded in the spur G. member embedded in the spur, lying with one end adjacent to thc post 5 and with the other end adjacent to the stake 8.

rfhe construction of such a foundation is vejy simple and may be readily accompLshed by any person of ordinz'rry intelligence with very little difhculty, and by an extremely small expenditure of labor o r ymoney, as compared with the old methods of timber' bracing.

The excavation for the base 4 is first made substantially circular in section and slightly larger than the post to be secured therein, a shallow extension in the direction of the strain upon the post is then made to provide for the s 'iur 6. This last named excavation is generally made down to the subsoil though in many cases this is not desirable, and for that reason the projection 7 is formed on the spur (i. The excavation for thc projection 7 may be made by an ordinary post hole auger and is carried down to at least a short distance beneath the subsoil. The stake S is then driven through the center of the excavation last named until the head thereof is about half way below the surface of the soil 1 in the shallow excavation extending from the circular' excavation. The coment or concrete having been properl)` mixed, the bottom of the circular' excavation is covered and the post 5 held in position while more concrete is tamped in around the post filling the space thcrearound. The shallov. excavation for the extension is then filled with soft cement or concrete approximately to the height of the head of the stake, and the reinforced member 9 is placed thereon and the remainder of the excavation filled. The top of the foundation thus cmistructed is leveled olf to correspond with the surface of the surrounding soil leaving a collar surrounding the post to shed water if desired, and the concrctexallowcd to sot.

` The ordinary manner of setting a fence post is to make an excavation of sufficient simo, insert thc post and then tamp earth around the same. As soonl as a post secured in this manner is subjected to an excessive strain .in one direction, thc top of the post is bouudffto give in the dirci-tion of the strain, for the reason that the bottoml is securely i) is a reinforcing 50 'be either' wood or metal and may be either held by the solid subsoil and the lighter surface soil will be pushed aside by the exertion of the strain. In my foundation the spur 6 extends .in the direction-of the strain and through the surface soil, and at the same time securely holds the head of the stake 8,

- which is driven to a considerable depth into the solid subsoil, and

to the two lines of the spur 6 and stake 8 will cooperate in such a manner as to absolutely prevent any springing or movement of the ase member 4 in the direction of the spur.

l tremely difficult to secure in an upright posi- A-tion without the use of additional braces or supports, and in most cases these braces or supports will spring loose under a terrific strain to which they are subjected. The strain on telegra h poles is the greatest Where the line makes a curve or takes a corner. In Fig. 4 I have illustrated my foundation as ap lied to a telegraph pole or flag pole. In t is case I provide a plurality of diametrically opposed spurs constructed in the manner illustrated'in Fic. 1'.

In some cases it is desirabIe to provide an additional brace for the post. In Fig. 4 I have illustrated a'brace 11 secured to the post 10 at its u per end with its lower end 12 embedded in t e spur 6 in proximity to the end of the reinforcing member 9 and the head of the post 8.I The cement binds these three portions tightlyjogether and prevents the springing or removal of the braces 11.

The stake 8 may be of wood or metalas desired without fear of deterioration for the reason that thepart of the stake which comes in contact -With the earth is a considerable depth below the subsoil and experience has taught us that both wood and metal will be reserved thoroughly in the subsoil away rom air. The reinforcing member 9 may constructed in any desired form, as

scrap or the concreteit will notdeit is 'embedded in teriorate.

In Fig. 5 I have illustrated a section taken through a foundation for a pole 10, and in such instances it may be desirable to extend 'the reinforcing member from one spur foundation of my construct-Son above the upper surface of the spur 6 to provide a means for securing stay 13, the other eye connecting, when racticable, with the reinforcing member em edded in s ur 6.

Having described my invention claim 1. A post foundation comprising a base of concrete, a spur of concrete projecting from the upper portion of the base, and4 a stake having its head embedded in said spur and extending downward into the soil.

2. A post foundation com rising a base of concrete, a post embedded t erein, a spur oi concrete projecting frojjn of the base, a stake extending downward into the soil from said'spurand having its head embedded therein.

3. A post foundation com rising a base of concrete, a post embedded t ierein, a spur of concrete projecting from the upper portion of the base, a stake extending downward into the soil from said spur, and having itshead embedded therein, and a. post brace having one end embedded in said spur. f' A 4. A post foundation comprising a base of concrete, a post embedded therein, a spur of concrete projecting from the upper portion the upper portion of the base, a stake extending downward into the soil from said spur and having its head embedded therein, and a horizontal reinforcing member in said spur.

5. A post foundation comprising concrete, a post embedded therein,

a base ofv a spur of concrete projecting from the upper portion' of the ase, a stake extending downward into the soil from said spur and having its head embedded therein, a horizontal reinforcing member embedded in said spur adjacent to the head of the stake and a post brace having one end embedded in said spur adjacentto the stake and reinforcing member.

6. A post foundation com rising a concrete, a post embedded t erein, a spur of concrete projecting from the upper portion of the base, a stake extending downward into the soil from s id spur and having its head embedded th'ereii, a horizontal reinforcing member embedded in said spur adjacent to the head of the stake and means carried 'by the reinforcing member projecting above the foundation to form a securing means for a post brace.

7,. A post foundation comprising a base of concrete, a spur'of-concrete projecting from the upper portion of the base, aI rojection of concrete on the underside of saidJspur, and a stake having its head embedded in said spur and extending through said projection into the soil.

8. A post foundation comprising a base of concrete, a plurality of spurs of concrete projecting from thc u per portion of the base, and a plurality o stakes, each having its head embedded in a spur and extending downward into the soil.

9. A postfoundation comprising a base of base of concrete, a post embedded therein, a plurality of spurs of concrete projecting from the upper portion of the base, a stake extending downward into the soil from each spur, and having its head embedded therein, a horizonta reinforcing member embedded in each'spur, one end lying adjacent to the post and the other end adjacent to its respective stake.

10. The process of forming a concrete post foundation comprising the excavating of a lsubstantially circular base, the excavating of a radial extension, the driving of a stake near the end of said extension and the filling of the excavations with soft concrete embedding the end .o f the stake therein.

11.v The process of forming a concrete pos foundation comprising vthe excavating of a substantially circular base, the excavating 'near the end of said extension, t e covering of the bottom of the base with soft concrete, the insertion of a post in the base excavation, and the filling around the post a'nd in the extension to a height ad'acent to the head of f the stake, the placing o a reinforcing member with its ends adjacent to the post and 4stake upon the surface of the concrete and vthe filling of the remainder of the excavation to embed the end of the post, the reinforcing member and the head of the stak 13. The process of forming a col crete post foundation comprising the exca ating of a substantially circular base, thc ex avating of a pluralityT of radial extensions, the driving of a stake near the end of each extension and the filling of the excavation with soft concrete embedding the heads of the stakes therein.

14. The process of forming a concrete post foundation comprisin(Y the excavating of a substantially circular zbase, the excavating of a plurality of radial extensions, the driving of a stake near the end of each of said extensions, 'the covering of the bottom of the base with soft concrete, the insertion of a post in said excavation, and the filling of the excavation around the post and in the extensions With soft concrete embedding the end of the post and heads of the.stakes.

15. The process of forming a concrete post foundation comprising the excavating of a substantially circular base, the excavating of one or more radial extensions, the excavating of a depression near the end of each extension, the driving of a stake through each of said de ressions, the covering of thc `bottom of the ase with soft concrete, the

insertion of a post in said excavation and the filling of the excavation around the post and in each extension with soft concrete embedding the end of the post and heads of the stakes.

JAMES L. MCCLINTOCK. Witnesses:

'LANGDON MOORE,

CAROLINE MORGAN.

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