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Publication numberUS179973 A
Publication typeGrant
Publication dateJul 18, 1876
Filing dateMay 15, 1876
Publication numberUS 179973 A, US 179973A, US-A-179973, US179973 A, US179973A
InventorsThomas Thoenton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in tubing-clutches
US 179973 A
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Description  (OCR text may contain errors)

..... Lal.-

INH/VTM.

T. THORNTON.

TUBING CLUTGH.

Patented .my 18,1876.

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NPERS, PHOTO-LITHOGRAPHER. WASHINGTON D. C.

THOMAS THORNTON, OF TIDIOTE, PENNSYLVANIA.-

IMPROVEMENT IN TUBING-CLUTCHES.

Specification forming part of Letters Patent No. 179,973, dated July 18, 1876; application filed May 15, 1876.

To all lwhom it may concern:

Be it known that I, THOMAS THORNTON, of Tidioute, Warren county, Pennsylvania, have invented an Improved Tubing-Clutch, of whichv Aas an elevator to draw the remaining portion from the well.

B y my invention all these several Objects are attained, tliecluteh being so constructed that when resting on the top of the casing of the well it clamps the tubing fast and prevents it from turning.

In the drawing, Figure l shows a plan, and Fig. 2 an elevation, with the clutch lifted from the top ofthe casing; Fig. 3, a section of the clutch as it is used in drawing the tubing, and Fig. 4 a section as it rests on the top of the casing,`and is holding the tubing from turning. (Figs. 3 and 4 are the sections on line m y in the plan.)

A represents the top of the casing of the well B, a cap placed over the casing, and secured to it by bolts or otherwise.' This cap has an opening in the center sufficiently large to allow the tubing to pass through; the alternate quarter-sections ot' the circumference or rim ofthe cap B being raised so as to form the shoulders b b. y

D is the clutch, made from castiron or other metal. On the bottom are four projections or feet, d d, madeto rit into corresponding depressions or holes in the cap B, indicated by the dotted lines.

E is a slot to allow the clutch to be placed around the tubing C, and is made just wide enough to admit the tubing below the collar. f f are wires or handles, to which the rope is attached to raise the tubing. g g are sliding clamps or jaws, made of cast-steel, and are so constructed that when the clutch D is suspended, or when the feet'd d rest on the cap B, they slide downward and back from the tubing, but when vthe clutch is lowered, so that the feet d d drop into the corresponding holes in the cap B, the weight of the clutch and of the tubing rests on the bottom'of the jaws gg, which are then forced upward and against the collar on the tubing. The upper face against the tubing being sharply serrated, it thus firmly holds the tubing and prevents it from turning. 1th are shoulders in the slot E, on which the collar on the tubing rests.

The jaws g g are so formed that when they are dropped back or open, they'will allow the collar on the tubing to descend to the shoulder It, but will not allow it to pass out horizontally, thus preventing the tubing slipping from the clutch while raising or lowering.

The operation is as follows: The tubing being 'raised suficiently for the clutch to be placedY around it below the collar, it is again lowered till the clutch rests upon the cap B, and the collar upon the shoulder h. The

UNITED STATES PATENT OFFIOE.

clutch is then turned till the feet d d drop into the holes in the cap B, when the clutch drops till its weight and the weight of the tubing rest on the bottom of the jaws g g, which are thus forced up and against the collar of the tubing, holding it firmly in place. The upper joint is then unscrewed and removed, the rope attached by a hook to the handles f f, and the Y.

clutch, with the tubing, drawn from the well,

till a second section is exposed, the jaws g gdropping back and releasing their' hold on the collar.

What l claim as my invention is'- y The clutch D, provided with the feet d d and jaws g g, in combination with the easingcap B, substantially as and for the 'purposes set forth.

. THOMAS THORNTON.

Witnesses:

L. R. KLUMPH, J. M. HENDERSON.

Referenced by
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US2921481 *Apr 2, 1958Jan 19, 1960Pacific Scientific CoSingle line compensator
US7191840Mar 5, 2004Mar 20, 2007Weatherford/Lamb, Inc.Casing running and drilling system
US7213656Apr 26, 2004May 8, 2007Weatherford/Lamb, Inc.Apparatus and method for facilitating the connection of tubulars using a top drive
US7281587Mar 30, 2006Oct 16, 2007Weatherford/Lamb, Inc.Apparatus and methods for tubular makeup interlock
US7284617May 20, 2004Oct 23, 2007Weatherford/Lamb, Inc.Casing running head
US7325610Mar 5, 2004Feb 5, 2008Weatherford/Lamb, Inc.Methods and apparatus for handling and drilling with tubulars or casing
US7353880Nov 15, 2006Apr 8, 2008Weatherford/Lamb, Inc.Method and apparatus for connecting tubulars using a top drive
US7370707 *Apr 5, 2004May 13, 2008Weatherford/Lamb, Inc.Method and apparatus for handling wellbore tubulars
US7448456Feb 1, 2006Nov 11, 2008Weatherford/Lamb, Inc.Adjustable rotating guides for spider or elevator
US7451826Aug 15, 2006Nov 18, 2008Weatherford/Lamb, Inc.Apparatus for connecting tubulars using a top drive
US7503397Jul 29, 2005Mar 17, 2009Weatherford/Lamb, Inc.Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
US7509722Mar 5, 2003Mar 31, 2009Weatherford/Lamb, Inc.Positioning and spinning device
US7513300Mar 20, 2007Apr 7, 2009Weatherford/Lamb, Inc.Casing running and drilling system
US7617866Sep 8, 2005Nov 17, 2009Weatherford/Lamb, Inc.Methods and apparatus for connecting tubulars using a top drive
US7654325Oct 31, 2007Feb 2, 2010Weatherford/Lamb, Inc.Methods and apparatus for handling and drilling with tubulars or casing
US7665531Nov 15, 2006Feb 23, 2010Weatherford/Lamb, Inc.Apparatus for facilitating the connection of tubulars using a top drive
US7669662Jul 20, 2005Mar 2, 2010Weatherford/Lamb, Inc.Casing feeder
US7694744Jan 12, 2006Apr 13, 2010Weatherford/Lamb, Inc.One-position fill-up and circulating tool and method
US7712523Mar 14, 2003May 11, 2010Weatherford/Lamb, Inc.Top drive casing system
US7757759Apr 27, 2007Jul 20, 2010Weatherford/Lamb, Inc.Torque sub for use with top drive
US7793719Oct 31, 2007Sep 14, 2010Weatherford/Lamb, Inc.Top drive casing system
US7845418Jan 18, 2006Dec 7, 2010Weatherford/Lamb, Inc.Top drive torque booster
US7874352Dec 12, 2006Jan 25, 2011Weatherford/Lamb, Inc.Apparatus for gripping a tubular on a drilling rig
US7882902Nov 15, 2007Feb 8, 2011Weatherford/Lamb, Inc.Top drive interlock
US7896084Oct 15, 2007Mar 1, 2011Weatherford/Lamb, Inc.Apparatus and methods for tubular makeup interlock
US7918273Jan 23, 2003Apr 5, 2011Weatherford/Lamb, Inc.Top drive casing system
US8517090Aug 1, 2012Aug 27, 2013Weatherford/Lamb, Inc.Apparatus and methods for tubular makeup interlock
US8567512Jan 19, 2011Oct 29, 2013Weatherford/Lamb, Inc.Apparatus for gripping a tubular on a drilling rig
Classifications
Cooperative ClassificationE21B19/16