US 1066000 A
Description (OCR text may contain errors)
T. E. D. GRUMPTON.
v AKPPLIGATION FILED Mmmm, 1912.
1,066,000. Patented July 1, 1913.
Inventor f j, Attorneys T HOMAS EDWARD DOLPHIN CRUMPTON, OF COALINGA, CALIFORNIA.
Specification of Letters Patent.
Application filed March .16,
Patented July 1 1913.
1912. Serial No. 684,343..
T0 all 'whom t may concern.'
Be itV known that I, THOMAS EDWARD DoLPHIN CRUMPTON, a'citizen of the-United States, residing at Coalinga, in the county of Fresno and State ofCalifornia, have invented a new and useful Tubing-Catcher, of .which the following is a specification. f
This invention relates to tubing catchers for. oil or gas wells. The primary object of the invent-ion is to provide each of the tubing sections with means for preventing the same fro-m falling within the well, should the sections separate..
A further object is to so constructthe catcher that the same may be readily released from contact with the well casing as the tubing section is raised by a spear or grab.
In the drawings Figure 1 is an eleva tion, partly in section.; Fig. 2 is a section taken o-n line 2 2 of Fig. 1'. Fig. 3 is a section on line 3 3 of Fig. 1. Fig. l is a Y section on line 1 4 of Fig. 1. Fig. 5 is a section on line 55 o-f Fig. 1. A
In the drawings, 10 designates the tubing, which ordinarily is placed in sections in the well. As stated above, the purposeof the present invention is to provide each yof these sections with means, adapted `'to contactwith the w`ell casing, to support the tubing should the sections separate.
Each o-f the tubing sections at various points, preferably adjacent the couplings between the sections, are provided with a sleeve 11, said sleeve l1 being supported on the tubing by set screws 12. This sleeve .is'provided with a plurality of lugs 14 and 15. which Vextend radially from the same.
' A collar 16 is slidably arranged upon the sleeve 11, said collar being provided withbayonet slots 17 which receive the radially extending lugs 14 and 15, the collar being thus supported on the sleeve. A
A plurality of rods 18 and 19 aresecure'd to said collar, the terminals 20 =ofsaid rods being enlarged and secured to jaws 21. `The cylindrical member 22 issupported, on the tubing between the collars 24 and 26, said Y cylindrical member 22 being provided with the dove-tail grooves 27, which are beveled, the jaws 28 which are correspondingly dovetailed, sliding in. said grooves,.the "bevelofv` the grooves forcing the jaws in Contact with.
the well casing when the tubing .section-1 to unlocked position t-he bow spring 30' would by frictional contact with the well casing force the wedges 21 upward to support the tube 10 by wedging Contact of the members 21 with the well casing.
It will be noted that as soon as the tubing is raised by means of a spear or other catcher, the block 22 may be drawn upward, and the jaws assume their normal position, out of contact with the casing, allowing the sectlions to be readily withdrawn from the wel It will thus be noted that the device provides an effective tube catcher, which when a tube section becomes detached, holds the same against falling, and which as soon as the tube is raised by any suitable means, immediately releases to allow for the removal of the tube.
It will also be noted that the peculiar gripping mechanism allows the tubing to be lowered into the well at any depth, the device not being set for gripping, until the radially extending lugs 1,5 are brought into the longitudinal portion of .the bayonet slots 16, the springs 30 controlling the slip of the Asaid rods, a secondcollar, the'terminals of said spring remote from therods being secured to said second collar. i;
2. A tube retaining device foroil and gas wells, comprising a sleeveseeured-,to the tub- Ving section, a collar` removablysecured to sleeve, a vcylindri cal member arranged upon said tubing section, collars arranged upon said tubing section adjacent the ends of said cylindrical member, said cylindrical member being formed with grooved, beveled surfaces, jaws slidably disposed on said beveled surfaces, said jaws being formed with ribs extending Within tbe grooves formed in said cylindrical member and rods connecting said aws with the first mentioned collar.
3. A tube retaining device for oil and gas Wells, comprising a sleeve, secured to the tubing section, a collar removably secured to said sleeve, a cylindrical member arranged upon the tubing section, jaws supported for sliding movement by said cylindrical meniber, rods connecting said jaws and said collar, springs supported by said rods, and a second collar removably secured to said tubular section, said spring being. `'secured to said second collar. g
In testimony that I claimthe foregoing as my own, I have hereto aiixed my signature in the presence of two Witnesses.
v THOMAS EDWARD DOLPHIN CRUMP'ION.
Witnesses E. D. PARKER, PAUL HU1\1 'rzAorL