US1640504A - Ground anchor - Google Patents

Description

Aug. 30, 1927. 1,640,504

M. ISAACS I I GROUND ANCHOR F110! Feb. 19. 1926 Patented Aug. 30, 1927.

o-NiT Eli ten-sot MARK ISAAGS, or INNnAroLis, MI NESOTA.

GROUND ANCHOR.

Application filed February 19, 1926', Serial No. 89,492 and in'canada December 18, 1925.

The invention relates to improven'ients'in ground anchors and an object of the invention is to provide an anchor which can be readily driven into ground below ground level and which cannot be withdrawn without entailing the displacement of a considerable quantity of earth; p

A further object to construct the ground anchor from comparatively few parts and which can be" manufactured inexpensively and which does not require'speci'al tools to be used in the placing thereof.

\Vith the above more important objects in 5 View the invention consists essentially in the arrangement, and construction of parts hereinafter more particularly described; refer ence being team the accompanyingdrawing; in which V p Fig. l is a vertical sectional view centrally through the tube employed and showingit in the ground. 3

Fig. 2 is a verticalsectional view centrally through the complete anchor and with the fingers. Fig. 7 is an enlarged detailedhorizontal sectional view at 7-7 Figure 3.

'In the drawing like characters of reference indicate corresponding parts in the several figures.

The present device is designed for anchoring the ends of cables, ropes and such like to the ground so that they cannot pull out ex cept under very exceptional or extreme conditions.

In constructing my device, I first. provide a hollow tube or pipe 1 of predetermined length which has the one end thereof split as indicated at 2 and brought to a tapering shape so that the said tube can be readily 55 driven into the ground 3 into a position such as shown in Figure 1.

and anchored to the" fingers containedfin the tube and the rod I provide also a two piece or split plug 4 for the upper end of the tube, the plug entering the end of the tube andbeingprovided with an outstandingflange 5 which prevents it from dropping down. A rod 6 of predeterminedlength is passedslidably through thetube and has the upper end bent to provide an eye 7 and the lower end fitted with a. head 8, the head beingpermanently secured to the end of the rod and being also of such' dimension that it can be passed through the tube. The rod passes slidably through the plug.

The head8 is provided with rounded corners 9 and has the sid'es thereoi' cut out between the corners to provide. side recesses 10. v To the head I connect similar anchoring fingers 11 and each finger has the body part thereofcentrally bent to provide angularly disposed flanges or" wings 12 and '13 which are tapered to a point-.14 and at the end re-v mote from the point a flat attaching lug 15 is formed which normally takes a position more or less at right angles to the boov of the finger. Thelug is supplied with an angularly disposed slot 16;" The upper or lug carrying ends of'th-e fingers normally enter or pass across the recesses 10 of the head and the lugs'yare attached to the head in a depending position by pins 17 secured" to the head and passing 'slidably through theslots.

WVhen it is desired to place the anchor in the ground, the tube is first driven into the groundinto the position as best shown. in Figure 1. One then gathers the fingers to-' getherand enters them in the upper end ofthe tube and thenfforces the roddown until the 'fingerstak-e the position shown in Figure 2. Itis desirable that the' fingers have a natural tendency to springoutwardly when so place'din the tube. One ext places the two part collar around the rod and inserts it in the upper end of the tube. The next operation is to place a rod or filler in the eye and then drive the eye and consequently the rod downwardly. As the rod moves ClOWlL the fingers spread or openup the previously close-d lower end of the tube and with the result that in the further driving of the rod the fingers enter the ground and take an outward course radial to the head. i

The shape of the fingers is such that they will work outwardly in the ground as the rod is driven down and as the fingers expand ormove outwardly, the right angl d bend 18 at the upper end of each finger straightens out, that is, the bodies of the fingers tend to come into the same horizontal plane as the lugs. As the bend 18 is fiattened by the spreading of the fingers the la ter travel inwardly upon the head 8 with the result that the pins 17 in conjunction with the slots 16 cause a rotary movement of the head 8 so that in the final position of the anchor, the fingersare overlying the corners ot the head more or less in the po-sition as shown in Figure 5 and the pins are at the then outer ends of the slots.

Accordingly it is practically impossible tor the fingers to buckle downwardly upon the rod being pulled upwardly with the result that the rod will serve eil'ectively to anchor cable, rope, pulling line or such like attached to the eye 7 thereof.

What I claim as my invention is 1. A ground anchor comprising a pipe adapted to be driven into the ground, a rod extending lengthwise through the pipe, a head secured to the lower end of the rod and designed to pass through the pipe, said head being substantially rectangular and having vertical slots in the sides thereof, pendent fingers crossing the slots of the head and fitted at their upper ends with inturned angularly slotted lugs, pins passing through the slots of the fingers and into the head and slidably attaching the fingers to the head, said fingers being lengthwise bowed and having their lower ends pointed whereby in the down driving of therod the fingers will strai hten out in the soil at the end of the pipe bending at the bases of the lugs and will take a radial position overlying the corners of the head.

2. A ground anchor comprising a plural ity of fingers attached to and normally depending from a suitable carrying means, said fingers being adapted to spread apart when driven into the ground, a plurality of supplemental finger supports positioned intermediate said fingersin the normal depending position of the fingers and means tor shitting said supplemental supports in a direction to position same beneath and in sup porting engagement with the fingers in the spread-apart position of the latter.

3. A ground anchor comprising a pluralout of engagement therewith when the fin-- gers are in normal depending position and means actuated by the spreading of the fingers .tor shitting said supplemental supports into engagement with the fingers to sustain the latter in spread apart position. 7

4. A ground anchor comprising a head, a

plurality of fingers normally depending from the head and having the upper terminals thereof bent substantially at right angles to the body portions of the fingers and supported upon the upper surface of the head, and a slot and pin connection securing the bent terminal ot'each-finger to the said head, the slots of said connections being in clined with reference to the longitudinal axis of the fingers, said fingers being adapted to spread apart when driven into the ground and to travel inwardly across the head whereby the latter is rotated through the coaction of the pins and inclined slots torming the connection therebetween and the several fingers and a plurality of supplemental finger supports normally positioned between the several fingers out of engagement there with but adapted to be shifted into supportmg engagement with said fingers by. the

aforesaid rotation of the head. 7 I 5. A ground anchor coinprising a tube adapted to be driven into the ground, a head slidablewithin said tube, a plurality of fingers attached to the headand normally depending theretrom, said fingers being adapted to spread apart when driven into the ground beyond the lower end 01": the tube, corner projections carried by the head and positioned interi'nediate said fingers when the latter are in normal depending positions, and means for turning the head relatively to the fingers during spreading of the latter position said corner projections beneath the fingers and in supporting engagement therewith. V

Signed at innipeg this 27th day of January, 1926. v

MARK ISAACS.

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