US1273890A - Drive-anchor. - Google Patents

Description

C. LOSETH.

DRIVE ANCHOR.

APPLICATION mm MY13. I916.

1,27 3,890. Patented July 30', 1918 Flat 8x507: I Chris L dial/z,

flitorney.

CHRISTOPHER LOSETH, OF COUNCIL BLUFFS, IOWA.

DRIVE-ANCHOR.

Specification of Letters Patent.

Patented July 30, 1918.

Application filed May 13, 1916. Serial No. 87,434.

To all whom it may concrrn.

. e it known that I, (hinis'rornnn Losn'rn,

a citizen of the United States, residing at (ouncil llluti's, in the county of Iottawattamie, State of Iowa, have invented a new and useful Drive-Anchor, of which the fol lowing is a specification.

My invention relates to i'mprovemcnts in anchors for anchoring; cables at various depths and which after being driven are adapted to open, thus increasing their anchorage properties, and the objects of my invention are:

l irstZTo provide a suitable land anchor which can be driven to any reasonable depth to engage suitable resisting soil without ondue force.

Second: To provide such an anchor that the driving instrlunentality may be removed andused aoain.

Third: 'I o provide such an anchor without an extended shank.

Fourth To produce such an anchor as will automatically increase its anchorage powers.

Fifth: To pro ide a means for positively causing the arms of said anchor to open and increase the resistance to pull upon the cable.

Hixlh: To provide such an anchor that will be cheap in its construction and simple in its parts.

I attain these objects by the device illustratcd in the accom]moving drawing in \vhich-- Figure ,l is a side elevation ol the anchor head with the driving tnbc hoivn in section, the arms of the anchor bcinp closed. Fig. 2 is a side elevation ol the said anchor and driving tube with vanes open. lfig. 3 is a side elevation ot the anchor taken at right angles to the elevation shown in Fig. 2. but showing the anchor arms closed. Fig. 4 isan elevation of the anchor head shown in Fig. 2, but at right angles thereto and withoutthe driving tube attached. Fig. 5 is a cross 5 section of the anchor head showing the method of attaching the anchor arms. Fig. (i is a side elevation of the anchor arms dcihchcd. Fig. 7 is a plan of the anchor arms detached. Fig. 8 shows a method of fastening the cable into the shank.

Similar letters refer to similar throughout the several views.

In many cases in engineering it is desirable to anchor cables into the soil both under the water and on land. It isnecessary in some cases to go through a sand or silt parts into a heavier body-of earth, as clay or gravelly earth. In providing such anchorage it-is desirable to use the least possible maduced portion or shank 8 to which is attached a cable 0.

While here only a cable is shown it ,may consist of a rope, steel cable or chain and is fastened into the shank s throu h a hole in the said shank or in any suitale manner. When a steel cable or chain is used it may be cast into the anchor shank as shown in Fig. 8. The -shank a is adapted to fit into a suitfllllc. sized connnercial pipe or tube a which play he of any suitablelen th. A driving cap 7.: may be threaded 0r 'riven on to the pi pe. a and a slot provided below said cap j; for the cable c and the eabloe may thereby be made any length with respect to the driving pipe (1. Anchor arms Z) and b are provideil which are hinged in the head It and are arranged when closed to occupy hollowed spaces provided in the head as shown in Fig. 1. The arms 6 and l) are arranged to each fold into the recess of the anchor head and to turn outward at some suitable angle herein shown at. right. angles for convenience; the said arms are formed sh that the head holds them at. the proper angle. The fins f and 7'" of suliicicnt length. but of a thickness not to interfere with the driving of the head, may be arranged to further strengthen the anchor arms when open. The points or ends of the anchor arms I: and 7) are slightly curved so as to throw themselves into the earth when it is attempted to withdraw the anchor h v pulling on the cable. In addition to the curving, ends of the anchor arms 6 and 5 simple springs as p and 1' may be provided. to give the arms a tendency to be thrown outward when the anchor head is drawn lau'kward. The anchor arms 7) and Z) are preferably formed having: a hinged joint as shown in Figs. (3 and 7 though the particular joint or manner of connecting the said armis to the head is not controlling in the invention.

The drh ing pipe (1 is free to be removed from the shank s when the anchor head 72. has been driven or forced down to its depth.

The anchor head h with the cable 0 attached is placed in a driving pipe 0 having a suitable driving head In. Several sets of tubes a of difl'erent lengths may be used for various do the. The anchor is then driven to the dept re uired by striking or driving upon the head c or an ordina commercial pipe or tube may be used with the cable passed through and a pile driver head laid over the same with a suitable hammer adapted to dll"8 the same into the ground. This anchor may be driven into the bottom of rivers, harbors or other ilaces where it is necessary to go through silt and sand and reaching clay or more solid soil, or it may be driven along banks in rivers, or a means of fastening guy wires or cables. After the anchor is driven to place the driving tube may be withdrawn if desired, the cable ing through. it, or it may be cut oil at the top of the ground or water and filled with a composition to preserve the cable. When the pull is put upon the cable after being driven the anchor arms 7) and b will by reason of the shape of the ends thereof and aided by the springs 7) and 72' open and engage the soil through which the anchor head has passed. The anchor head will then move until the anchor arms have reached the extremity of their movement in the head it or to the position shown in Fig. 2 and the anchor will then ofler all the resistance that said arms can give in the soil in whichit is placed. These anchors may be made of various sizes with various lengths and areas of arms adapted to various soils and varying sized cables.

I am aware that land anchors have been heretofore made having movable hinged arms and adapted to being driven into the (soil, but What I claim and desire to secure by Letters Patent is:

A drive anchor comprising a body pro vided with an arrow shaped headand having an opening thereat, said body being also provided at opposite sides with depressed portions or recesses and having long' uclinal grooves extending from the same to e said openinguarms pivoted within the said opening and extending along the grooves and provided with curved terminal portions located within said recesses or depressed portions and terminating short of the inner ends of the same to expose the ends of the arms which are deflected laterally and oflset from the walls of the recesses or depressions to facilitate their engagement and springs ar ranged to urge the arms outwardly.

. CHRIS. LOSETH. \Vitnesses LYNN S. ALnnnTr, LILLLAN M. HALL.

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