|Publication number||US1685716 A|
|Publication date||Sep 25, 1928|
|Filing date||May 17, 1926|
|Priority date||May 17, 1926|
|Publication number||US 1685716 A, US 1685716A, US-A-1685716, US1685716 A, US1685716A|
|Inventors||Mullen George B|
|Original Assignee||Mullen George B|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
wm m Sept. 2, 1928..
G. B. MULLIEN OIL DERRICK ANCHOR Filed May 17, 1926 F/Efi.
GEORGE B. MULLER, 01E STRDUD, OKLAHOMA.
Application filed May 17, 1926. Serial No. 109,686.
' The present invention relates to derricks such as used in. drilling oil and other deep wells, and the object of the invention is the provision of simple and effective means for anchoring the derrick structure securely to the foundation or base, to prevent the derrick from being blown over by strong winds, and to render the structure more substantial.
With the foregoing and other objects in View, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without depart ing from the spirit of the invention.
The invention is illustrated in the accompanying drawing, wherein-- lligure 1 is a perspective view in diagram 21) of a derrick with the improvements incorporated there-in.
Fig. 2 is an enlarged fragmentary detail view.
The improvements may be used in any oil or deep well derrick of the prevailing eonstructions used, some being made of metal and others of wood. The ordinary derrick coinprises the four corner legs 7 converging upwardly and connected by horizontal and inclined braces 8, to provide a skeleton frame which tapers upwardly. The derrick is supported on a suitable foundation or base, which may be concrete sleepers 9 as shown.
In carrying out the invention, guy wires 10 and 11 are disposed at all four sides of the derrick, and have their upper ends looped or otherwise engaged around the legs 7, as at 17, at vertically spaced points, or at different vertical heights of the derrick. The loops l7 embrace the legs at points immediately above the corresponding braces 8, so that said braces prevent the loops from sliding downwardly on the legs, and the strains are thus applied to the legs at the junctures thereof with the braces. The wires 10 are connected to the derrick at a. higher point than the wires 11, and there are two wires 10 and two wires 11 at each side of the derrick, said wires crossing one another and be ing disposed in substantially the plane of the corresponding side of the derrick. The lower lllll portions of the wires 10 and 11 of each pair are connected to the eye 12 of a rod 13, and, as shown, the wires 10 and 11 may be connected together and loop-ed through the eye 12, to equalize the tension on the two wires when they are tightened. The rods 18 are connected by turnbuckles 1 L wit-l1 rods 15 that are anchored, as at'16, within the sleepers 9 of the foundation or base. The guy wires 10 and 11 diverge upwardly from the anchors at the lower end of each leg 7 to vertically spaced points of the adjacent legs, and by tightening the turnbuckles 14, the wires 10 and 11 are rendered taut, so that they will exert a downward pull on the derrick at different vertical points thereof. This will hold the derrick down on the base or foundation, to resist the pressure of high winds that tend to blow the derrick over. The downward pull on the derrick distributed to different vertical points of the derrick, so that the compression strains on the derrick from the guy wires may be distributed throughout the height of the derrick to prevent buckling of the derrick, and to render the structure more substantial. The guy wires not only exert downward pulling force on the derrick at different altitudes thereof, but also have a tendency for drawing the legs 7 toward one another, thereby keeping the braces 8 under compression strains to resist the structure being blown apart by strong winds.
Having thus described the invention, what is claimed as new is:-
1. The combination with a derrick including a foundation, legs rising from the foundation, and braces connecting said legs, of anchors embedded in said foundation at the lower ends of the legs, and guy wires c011- nected to said anchors and having portions embracing said legs at different heights of the derrick inunediately above said braces, said wires crossing one another at the different sides of the derrick and. being disposed in substantially the same planes wit-h said sides.
2. The combination with a derrick including a foundation, legs rising from said foundation, and braces connecting said legs, of anchors embedded in said foundation at the Hall legs at vertically spaced points, and the wires of the pairs crossing one another at the different sides of the derrick. 10
In testimony whereof I hereunto ufiix my signature.
GEORGE B. MULLEN.
|Citing Patent||Filing date||Publication date||Applicant||Title|
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|US3062336 *||Jul 1, 1959||Nov 6, 1962||Reynolds Metals Co||Tower|
|US4509303 *||Mar 3, 1983||Apr 9, 1985||International Telephone And Telegraph Corp.||Overload protector for guyed structures|
|US5205375 *||May 2, 1991||Apr 27, 1993||Shriver Jarold A||Tree stand stabilizer|
|U.S. Classification||52/148, 52/151, 52/295, 52/299|