US762710A - Ground-anchor. - Google Patents

Description

No. 762,710. PATENTED JUNE 14, 1904.

x G. HALL.

GROUND ANCHOR.

APPLICATION FILED DEG. 29, 1903.

N0 MODEL.

No. vs ao.

Patented June 14, 190 1..

PATENT OEEIcE.

GEORGE HALL, OF LIMA, OHIO.

GROUND-ANCHOR.

SPECIFICATION forming part of Letters Patent No. 762,710, dated June 14, 1904.

Application filed December 29, 1903. Serial No. 187,040. (No model.)

To ctZZ whom it may concern.-

Be it known that I, GEORGE HALL, a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented new and useful Improvements in Ground-Anchors, of which the following is a specification.

This invention relates to ground-anchors, and particularly to that class of anchors which are buried in the earth and serve as a stable connection for guy-ropes, stays, braces, and like devices for firmly holding in position telegraph-poles, trolley-poles, fences, flagstaifs, derricks, and similar structures; and it has for its object to provide an improved novel and simple anchor of the type referred to which may be readily inserted in place in the ground and which will immediately and automatically bury itself the moment that tension or strain is applied to the stays, guys, braces, or the like.

To these ends the invention consists in the features and in the construction, combination, and arrangement of parts hereinafter described, and particularly pointed out in the claims following the description, reference being had to the accompanying drawings, forming a part of this specification, wherein Figure 1 is a perspective view of the anchor and its attachment. Fig. 2 is a top plan view of the anchor, the attachment being removed. Fig. 3 is a transverse sectional view of the anchor and a portion of its attachment. Fig. 4 is a view of the anchor, illustrating its position after it has been inserted in the earth and before strain has been applied to its connection; and Fig. 5 is a similar view illustrating the anchor after it has beenturned to an operative position.

The present invention relates to that form of ground-anchor in which are comprised two flukes which are arranged to be inserted endwise into a hole bored or in any other suitable manner formed in the ground and provided be:

tween its ends with means for pivotally attach I rod, cable, guy-rope, or other support which may be attached to the anchorthe flukes will automatically be moved into a position in which they will be disposed at right angles to the rod, cable, guy-rope, or the like and willso embed themselves in the ground as to resist and prevent the withdrawal of the anchor therefrom.

In the class of ground-anchors referred to a serious disadvantage has been experienced owing to the fact that when the strain or tension is placed upon the guy-rope, cable, rod, or the like there has been a tendency of the anchor to slip to a greater or less extent in the hole bored for its'reception'before the anchor will take hold and bury itself in the earth; and the present invention has for its principal object to avoid this result, the arrangement being such that the moment any strain is placed upon the rod connected to the anchor the latter will instantly turn upon its axis and cause the flukes to bury themselves in the earth.

Referring to the drawings, the numeral 1 indicates in a generalmanner the anchor consisting of two flukes 2 and 3, which are formed of a single piece of metal, each of said flukes comprising a broad flat blade, the said blades being reversely curved, as shown, the curvature of the two blades having the configuration of what is known as a compound curve. Formed integral with said blades and what may be termed their rear sides is a web, rib, or flange 4, which serves to impart strength and rigidity to the anchor, and said web or flange is enlarged intermediate its ends, as indicated at 5, and is transversely perforated, as at 6, said enlargement constituting a boss or bearing for the purpose hereinafter made apparent.

Passing through the perforation or aperture 6 is a headed bolt 7, which is prevented from being laterally displaced by a nut 8, and arranged between the head of said bolt and its nut 8 are the looped ends of a bail 9. As

shown in the drawings, the bail consists of a single piece of metal bent into substantially U shape, the free ends of the bail being bent back upon themselves to form the loops,which engage the ends of the bolt, as described.

As is clearly shown in the drawings, the

blade 2 is somewhat wider than the blade 3, the difference in their width resulting in the formation of shoulders 10. As will be exhibited by the drawings, these shoulders are on the shorter ends of the anchor, and corresponding shoulders are formed on the opposite sides of the blade 3 and in opposition to the shoulders before referred to. p

The numeral 11 indicates a rod which is bent at its opposite ends to form loops 12, one of which is loosely connected with the bail before referred to and the opposite of which is to be connected in any suitable manner with the structure or article designed to be stayed in place.

The bail is disposed between the shoulders, as has been above described, and it will be obvious that the arrangement is such that said bail will have but a limited oscillating movement about the bolt which constitutes its pivot. This being true, it will be evident that one side of the anchor will overbalance the other side. It being borne in mind that the bail or clevis is pivotally connected eccentrically to the anchor, it will be readily understood that if the shorter end of the anchor be turned downward when the device is lowered into the hole prepared for it then when the strain is brought to bear upon the connection 11 the longer fluke 4: will be forced endwise into the earth and the shorter fluke 5 will be raised bodily, compacting the earth above it. Owing to the fact that the clevis is eceentrically connected to the anchor and that its fulcrum is on that side of the anchor which constitutes the longer arm when a strain or tension is brought upon the rod connected to the bail there will be a tendency to throw such longer end of the anchor in contact with the wall of the hole or aperture in the ground and the continued upward strain produced upon the anchor will cause the longer end to embed itself in the earth. However, this might not occur immediately were it not for the provision of the shoulders on the opposite sides of the longer end of the anchor, which shoulders are engaged by the sides of the bai l, and the longer end of the anchor is thus positively forced into the earth. It will be apparent that this movement of the anchor is not dependent upon the movement of said anchor about its fulcrum, but that the longer end of said anchor is positively forced into the earth by the bail engaging the shoulders formed on the opposite sides thereof, the result being that the moment any upward movement is exerted to lift the anchor the bail will engage the shoulders and turn the anchor at practically right angles to the direction in which the force is applied. By

means of this arrangement the anchor is caused to take hold instantly the power is applied to the connection between the article to be supported and the bail of the anchor, and there can be no slack or slipping movement of the anchor before it finally embeds itself in the earth.

I have shown and described the bail as consisting of a U-shaped metallic rod bent at its ends to form eyes or loops which are fitted over the end of a bolt that is passed transversely through the perforation in the boss of the anchor. It will be apparent, however, that the bail may be bent in such manner as to pass through the perforations in the boss and the bolt be dispensed with, and while the bolt and boss constitute the preferred means of establishing the connection between the anchor and the parts that are designed tov be supported nevertheless I wish it to be distinctly understood that I do not limit myself to such construction.

I have described the bolt 7 as being prevented from being laterally displaced by a nut 8; but it will be evident that equivalent means may be provided for accomplishing the same result.

Having described my invention, what I claim is 1. A ground-anch0r comprising two integral flukes extending in diametrically opposite directions and reversely curved, in combination with a bail pivotally connected at its ends intermediate the ends of the anchor, a rigid connection loosely attached to said bail, and means for limiting the movement between the bail. and anchor in both directions, substantially as described.

2. A ground-anchor comprising two integral flukes extending in diametrically opposite directions and reversely curved, a bail pivotally connected at its ends to the anchor intermediate the ends of the latter, a rod loosely-connected at one of its ends to said bail and provided at its opposite end with an eye or loop, and means forming a part of the anchor for limiting the movement between the anchor and bail, substantially as described and for the purpose specified.

3. A ground-anchor comprising two integral flukes extending in diametrically opposite directions and reversely curved, in combination with a bail straddling the anchor intermediate the ends of the latter and pivotally connected at its free ends thereto, means for connecting said bail to the device to be stayed, and abutments formed on opposite sides of the anchor and on opposite sides of its fulcrum, said abutments being arranged to limit the movement between the bail and anchor, substantially as described.

4. A ground-anchor comprising two integral flukes extending in diametrically opposite directions and reversely curved, in com- In testimony whereof I have hereunto set bination with a bail pivotally attached to the my hand in presence of two subscribing wit- IO anahlor to lcine side of the 6115? of the latter, nesses. I an atera y-projecting s ou ers on sai ann 5 chor between which the bail is adapted to os- GEORGE HALL' cillate, said shoulders constituting stops to Witnesses: limit the movement of the bail, substantially F. L. CHURCHILL, asdescribed and for the purpose specified. G. V. RUMBAUGH.

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