US2208388A

US2208388A - Oil tool spinner

Info

Publication number: US2208388A
Application number: US308630A
Authority: US
Inventors: Guy R Pothe
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-12-11
Filing date: 1939-12-11
Publication date: 1940-07-16
Anticipated expiration: 1957-07-16

Description

Jy1,1940. R, PO HE 8 2,208,388

OIL TOOL SPINNER Filed Dec. 11, 1939 2 Sheets-Sheet 1 INVENTOR. a Q. 5? Po THE, F a BY WM.

G. R. POTHE ,3

OIL TOOL SPINNER Filed Dec. 11, 1939 '2 Sheets-Sheet 2 INVENTOR. a Fifi.fi. By QEPOT'HE Patented July 16, 1940 UNITED STATES PATENT OFFICE 2,208,388.

on. TQOL SPINNER Guy a. Pothe, Fullerton, Calif.

Application December 11, 1939, Serial No. 308,630

, 20 Claims.

This invention relates to oil drilling rigs and hasparticular reference to a device for facilitating connecting and disconnecting drilling tools, couplings and pipes used in oil drilling.

Machinery used in connection with oil drilling has been so perfected and standardized, and the methods of handling the various drilling tools and connections thereof are so well known that no explanation is here required, except to mention that the rotary table of such rig is a rather elaborate metallic device centrally shaped to receive a master bushing which, in turn, is recessed to receive a Kelly bushing, both of which devices are commonly employed and well known in the art; I

The object of the present invention is to provide a device which is interchangeable with such Kelly bushing and which is fitted with a turn table on which toreceive and support the end of a tool, coupling or the like, to facilitate connection and disconnectionthereof. A further object is to provide means on such table for guiding the end of such part resting thereon.

It is customary in present day practice to throw a wooden plank on the metallic table, on which to support such tool or coupling and so as not to damage the'contacting edges of the part While spinning itaround in connecting or disconnection. In view of this, it is a further object of the invention to provide a covering for the device of the invention of such nature that it Will support the end of the part resting thereon without damage thereto.

The further objects and the various advantageous features of the invention will be readily appreciated from the following description, especially when read in connection with the appended drawings, of which:

Fig. 1 is a plan view of the rotary table of a drill rig of any commercially well known construction, showingthe device of the invention seated therein;

Fig.. 2 isa cross sectional side elevation of the center portion of Fig. 1. on a larger scale and taken substantially through the center thereof; Fig. 3 is also a cross sectional side elevation of the center portion of Fig. 1, and it includes an additional feature not shown in the foregoing; and v Figs. 4, 5 and 6 are fragmentary side elevations, partly in section, of the upper portion of the device of the invention and exhibiting further modifications the importance of which will be described presently. I i

This application is a continuation in part of application, Ser. No. 283,557, filed by me on July 10, 1939.

The numeral I denotes the rotary table of any commercially well known type and which is centrally recessed to receive the usual master bush ing 2. The latter, in turn, is centrally perforated at 3 to receive the Kelly bushing which guidesthe drilling tool, in operation. No further reference is made tothis Kelly bushing, and it is not illustrated, having been-lifted out of the master bush ing to make room for the structure of the. inven-l tion. The latter is shown' to comprise a base I0, into which a central stud H is fitted, and this stud serves as a pivot'upon which a-disc I2 is seated to rotate. Suitable ball orroller bear ings l3 are provided between the disc and the baseto take the end thrust'againstthe disc when the weight of a heavy object is imposed thereon. In order to remove the device from the rotary table with ease, it is advantageous to provide on the base In suitable hand grips M.

In operation, a tool, pipe or coupling. is set on end on the disc l2, and it is important to note that the top of this disc isshown coveredwith-a thick, preferably resilient lining l5, provided for the purpose of protectingthe end of the part resting thereon from damage when the part, together with the disc in the usual manner is spun around at high speed to effect connection and disconnection of the parts thereabove. Because the end of the part resting on the disc becomes somewhat imbedded in this lining, it is seen that an additional function of the lining is to check the tendency of the part resting thereon to slide off the discwhen so rotated. r I

Referring now to Fig. 3, it is noted that, while the base l0 and the disc 12 may remain as described, the lining l5, of the latter, is shown centraly perforated to receive a pilot [6, rising from the stud IT. The lower end of this stud may'remain exactly like stud ll of Fig. 1. This pilot serves as a pivotupon which to guide the end of the drill part seated on the disc and thereby to prevent it from sliding off the spinning disc in case the resilient lining is insufficient to maintain the part in position. r

At times, while the Kelly bushing is in position, it is required to mount or dismount some part, such as a coupling" or pipe section. To'facilitate such operation, the common method is to drive a spike or other handy element into the derrick flooring to guide the end of such part, but this is a very crude method partly because, when the parts are rapidly spun around as required in order to perform the operation, the end of the contacting part chews up the flooring. This may be prevented by raising the parts slightly above I the flooring, and attempting manually to guide the parts, an expedient which, however, merely makes the operation more difficult and increases the labor cost.

In such case, the device of the invention may be placed on the flooring adjacent to the rotary table and the parts to be connected or disconnected resteddirectly thereon. It is customary I to wind arope, from a capstan onthe floor, around piermanentimethod, :however, is to place pointed studs :2I in these :perforations, 'as indicated in the drawings.

suitably cone-shaped. This car: should also be made from s'ofter, preferably resilient material in order that it may serve the double purpose of bettermetaining the part in position while at the same time protecting it fromdamage.

:A combination :of the foregoing advantageous features is illustrated in Fig. 5, where'the disc 'fiS ShOWII cone-shaped; the pilot 26 rises clear of this disc; and the lining 21 offers protection for the part which is seated on the cone and guided by the pilot.

"Frequently, it is required 'to handle large facing tools and the like, and the disc ordinarily used may not be large'enough for this purpose unless the rotary table is large enough to hold an oversize master bushing. "in such cases, it

I may be necessary to increase the diameter of the disc at the top,substantially as indicated in Fig. '6, where the disc 31! is shown :made with. a muchilarger top flange 3 l With this --large flange added, :it may "be difiicult 'to :find room for the handles M, .and it may be preferable to provide indentations the underside ofcthe flange to serve as hand grips. Such indentations are indicated at.

The disc is, in this case also, covered by a resilient lining 33,- for the purposes specified, and it may be recessed to fitiover the pilot 16 of Fig, 3, or the disc I5, of Fig. 2 may be modified-'asflshown in Fig. 6 to obtain similar results on .a 'discinot fitted with a pilot.

:Other modifications, within the 5860136 of the appendedlclaims, :may 'be incorporated in order better to carry into practice the principles of the invention, as above outlined.

I'I'claim:

-11. A tool spinner for an oil rig rotary table opening, and a disc rotatable on said-base for opening, a stud centrally seated in said base,

and a disc rotatable on said stud.

3. A tool spinner for an oil rig rotary table having a central opening fora Kelly bushing, comprising, a base seatable in and closing said opening, a stud centrallyseated in said base, a disc rotatable on said. stud, and antifriction bearings between said disc and base.

4. A tool spinner for an oil rig rotary table having -a central -.opening for Ta Kelly bushing, comprising, a base seatable :in and closing said opening, a rotary disc centrally seated in said --base, and antifriction bearings between said disc and the said base.

5. .A tool spinner for an oil rig rotary table having a central opening for a Kelly bushing, comprising, a base seated in and closing said opening, a .disc .mounted for rotation on said base,and means on said disc for guiding a drill tool or the like placed thereon.

'6. A tool spinner for an oil rig rotary table having a central opening for a Kelly bushing, comprising, -a base seatable in and closing said opening, a disc "rotatable on said 'base for sup- "porting the end of anoil tool or the like, and

athick resilient pad covering the top of said disc.

'7. A tool spinner for an oil rig rotary table having a central opening for a Kelly bushing, comprising, akbase seatable in and closing said opening, a" stud centrally seated in said base, a disc rotatable on said stud, and a thick resilient pad covering the top of said disc.

' 8. A tool spinner for-an oil rig table having a central opening for a Kelly bushing, comprising, a base seatable in and closing said opening, a studcentrally seated in said base, a disc rotatable onsaid stud, a thick resilient pad covering the top of said disc, and antifriction bearings between said-disc and the-said base.

9. A tool spinner for an oil rig rotary table. having a central opening for a Kelly bushing, comprising, a base 'seatable in and closing said opening, a rotary "disc centrally seated in said base, a resili'entpadcovering the top of said disc, and antifrictionbearings between the tableand disc.

.10. A tool spinner for an oil rig rotary table having a central opening for a Kelly bushing, comprising, a base seatable in and closing said opening, a disc mounted for rotation on said base, a resilientpad covering the top of the disc,

, and means on-said disc for guiding a drill tool or the like placed on end thereon.

l-L A tool spinner ifor an-Oil rig rotary table ing from said disc.

12. A tool spinner for an oil rig rotary table comprising, arbase seatable in said table, a pivot rising :fromsaid base, a disc rotatable on said pivot, and a centering stud rising from said pivot.

13. A tool spinner for a rotary oil rig comprising,-a base seatable in the rotary table of the rig, said base being madewith bottom projections for steadyingthe device when set .for use on "the flooring of the rig, a disc rotatable on said base, and centering means rising'from said disc.

14. A .toolspinner for arotary oil rig comprising, .a base seatable in the rotary table of the rig, said base being made with bottom projections, for steadying the device when set for use on the flooring of the rig, a disc rotatable on said base, end thrust bearings between said disc and base, and centering means rising from said disc.

15. A tool spinner for the rotary table of an oil rig, comprising, a base seatable in said table, a disc rotatable on said base, a centering stud rising from said disc, and a cone-shaped centering cap seatable on said stud to cover the top of said disc.

16. An oil tool spinner for a rotary drilling table comprising, a base seatable in said table, and a disc rotatable on said base, said disc having a cone-shaped top surface.

17. An oil tool spinner for a rotary drilling table comprising, a base seatable in said table, and a disc rotatable on said base, said disc having a cone-shaped top surface terminating in a centering stud.

18. An oil tool spinner for a rotary drilling table having a central opening for a Kelly bushing, comprising, a base seatable in and closing said opening, a disc rotatable on said base, the top of said disc being made with a large flange to accommodate large facing tools and the like, and a thick resilient pad covering the top surface of said flange.

19. A tool spinner for an oil rig rotary table comprising, a base seatable in said table, a disc rotatable on said base, said disc having a larger top flange, a thick resilient pad on top of said disc, and centering means rising from the disc through said pad.

20. An oil tool spinner for a rotary drilling table comprising, a base seatable in said table, a disc rotatable on said base, said disc having a coneshaped top surface, and a resilient pad covering said cone.

' GUY R. POTHE.