US1606147A - Earth anchor device - Google Patents

Description

may loe constrnctecl ahnost entirely ol cast A metal and Without machine Wrk. The only machine work required is the threads on the rod 13 and the screw threaded opening in the body 10.

' In assembling the device the blades are placed in position substantially parallel with the rod 15 and the extensions 21 are inserted in the recesses 11. Then the rod 13 is screwed into the body 10 to the position shown in Figure 1, and when in this posi tion the deviee is ready for shipment and use.

In the use of o-nr devise the operator first forms a round opening by looring or otherwise, in the ground. The diameter of the opening need not be any greater than the diameter of the folded anchoring device. Then the anchoring device is placed in position near the bottom of the opening and the points of the anchor blades are made to engage the earth at the sides of the opening. Then the operator takes a crowbar or the like and extends it through the eye in the upper end of the rod 13 and imparts a rotary movement to the rod. This gradually forces the body 10 upwardly toward the expanding and locking plate 15, Which does n-ot move. l/Vhen this is being clone,

the points of the anchoring blades Will be moved outwardly and upwardly into the earth to the position shown by dotted lines in Figure 1, and when this movement has been completed, the locking ribs 17 Will then engage the corresponding locking ribs 23 on the anchoring b1ades, and thus limit the movement of the body portion 10 toward the expanding and locking plate, and at the same time look the anchor blades firmly and immoVably in the position shown in Figure 2. VVhen tension is applied to the rod 13 and the anchoring blades are in the ground, as shown loy dotted lines in Figure 1, then this tension as applied to the blades Will tendto swing the blades further outwardl'y.

the anchoring blades.

Ne claim as our'inventionz- 1. An anchoring device of the class described, comprising in combination a body portion, an anohor rod having a sorew connection with said body portion, a series of blades pivoted to the body portion and capable in one position of standing nearly parallel with the anchor rod and in another position 01 inclining outwardly, a spreader plate mounted on said anchor rod and de signed to engage the inner surface of the blades and force them otwardly when the anchor rod is rotated to move the body portion toward the spreader plate, locking lugs on the inner surface 01: the blades, and coacting locking lugs on the spreader plate designed to engage the locking lugs on the 'blade t0 thereby limit their outward II1OV6* ment.

2. in a device of the class described, the combination of a body for1ned With a central screw threaded opening and With recesses at its sides and a pivot bar extended aoross eaoh recess, a series of anchorblades formed with projections to enter said recesses below said pivot bars and also formed with looking lugs above said pivot bars and capable of a swinging movement fror a position extended snbstantially straight upwardly to a position extended outwardly and npwardly, a screw threaded rod extended through said screw threaded opening in the body, and an expanding and locking plate rotatively monnted on the screw threaded rod and having its side edges clesigned to* engage the inner upper face of the anchor blades to cause them to move outwardly when the body portion is 1noveol upvardly on the serew threaded rod, said plate being formed with clownwardly extended locking lugs at its edges designed to engage the locking lngs on the blades when the hlades have reached their ontward limit et 1novement.

ELMER K. COLE. CHARLES E. HANDEL;

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