US2616747A - Bail construction - Google Patents

Description

NOV. 4, 1952 J, P, R G 2,616,747

BAIL CONSTRUCTION Filed April 24. 1950 IN l EN TOR. Jana-'5 A efir/amv Patented Nov. 4, 1952 BAIL CONSTRUCTION James P. Ratigan, Los Angeles, Calif., assignor to J. P. Ratigan, Inc., Los Angeles, Calif., a corporation of California Application April 24, 1950, Serial No. 157,829

This invention relates to the art of well drilling and producing and is particularly directed to 9 Claims. (01. 294-48) improvements in a bail construction for support- 7 'ing load-carrying devices such as, for example,

so that relative turning movement is prevented.

'Another feature of this invention resides in the provision of an arched saddle member of novel design for suspending a pair of elevator links.

Other and more detailed objects and advantages will appear more fully hereinafter.

In the drawings:

Figure l is a perspective view showing a preferred embodiment of my invention.

Figure 2 is a sectional elevation taken substantially on the lines 22 as shown in Figure 1.

Figure 3 is a sectional elevation taken substantially on the lines 3-3 as shown in Figure l, the supporting hook being omitted.

Figure 4 is a perspective view showing details of construction of the arched saddle member.

Referring to the drawings, the bail assembly generally designated III is carried by a conventional hook II and supports a pipe elevator I2.

Movable jaws I3 are provided on the elevator I2 so that the elevator may be moved laterally to engage a well pipe [4. The shoulder I5 on the lower end of the coupling collar I5 rests on the elevator l2 and jaws IS so that the well pipe I4 is supported by the elevator.

Inaccordance with my invention I provide an arched saddle l1 for engagement with the hook II. The saddle I1. is provided with a bulbous underportion I8 which is thickerthan the body of the saddle and which is round in cross-section. This bulbous underportion I3 is arched and its ends terminate in abutments I9 which are defined. by parallel plane surfaces. Trunnions 29 are formed integrally with the saddle l1 and project coaxially in opposite directions beyond the abutments I9. The trunnions are positioned above the abutments l9 and are not cylindrical but are non-circular in cross-section. I prefer to form the abutments 20 with a square cross-section, although other polygonal or non-circular shapes may be employed if desired. The width of the trunnions is preferably the same as that of the main body portion of the saddle and the side surfaces of the trunnions are conveniently formed as extensions of the parallel plane surfaces 2i defining the sides of the body portion.

the trunnions 26 and 28, I provide retainer pins 29 which extend through openings 3| near the nions 28.

A pair of links or reins 22 are provided for suspending the elevator I2 from the saddle I1. Asshown in the drawings, each of these links 22 comprises an elongate shank 23 having integrally formed eyes 24 and 25 at the ends thereof. The upper eye 24 is provided with a non-circular aperture 26 extending therethrough which receives one of the non-circular trunnions 20 on the saddle I1. The aperture 26 as shown in the drawings is square in cross-section to receive the square trunnions 22. The connection thus formed between the upper eye 24 and the saddle I1 prevents relative turning movement of the saddle and link. This is a very desirable feature since it insures that the arched saddle member shall remain upright at all times with respect to the links 22. The arched saddle I1 therefore always remains in position for engagement or disengagement with respect to the hook II and no objectionable turning of the saddle with respect to the links can occur. 1

The upper eyes 24 of the links 22 are formed with parallel side surfaces 21 so that the links may be installed with either of these side surfaces in engagement with one of the abutment surfaces I9'provided on the saddle IT. The thickness of each eye 24 is substantially the same as the diameter of the shank 23.

The elevator I2 is preferably provided with oppositely extending trunnions 28 which are circular in cross-section. The eyes 25 at the lower ends of the links 22 are each provided with circular apertures 29 for reception of the trun- The elevator I2 is thus capable of free turning movement about the axis of the trunnions 28. This is a desirable feature since it enables the elevator to be applied to pipe in either horizontal or vertical position and also to be operated from either side of the pipe."

- In order to retain the bails 22 in position on ends of the trunnions 20 and 28. Since the links 22 may be disconnected from the arched saddle I1, the same links 22 may be employed with elevators of different widths by providing separate arched saddles I1 of corresponding widths. Furthermore, links or reins 22 of different lengths may be employed for supporting the elevator I2 from the same arched saddle I1.

Having fully described my invention, it is to be understood that I do not wish to be limited to the details herein set forth, but my invention is of the full scope of the appended claims.

I claim:

1. A bail assembly for a load-carrying device,

comprising: an arched saddle having oppositely projecting square trunnions, a pairof bail links each suspended from one of said-trunnions, each bail having a square aperture receiving one of said trunnions to prevent relative turning movement of the saddle and links, a portion of each trunnion projecting beyond each of the-links,

beyond each of thelinks, and a detachable retainer oneach of the projecting portions preventingdisassembly of the saddle and links.

, 4. A bail assembly for a Well-pipe elevator having oppositely extending trunnions, comprising an: arched saddle having oppositely projecting square trunnions, a pair of bail links for suspending the elevatorufrom-said saddle, each bail having a square aperture at one end receiving oneof -said saddle trunnions to prevent relative turning movement of the saddle and links, and having a circular aperture at the other end to receive'one of the elevator trunnions, a portion of each noncircular trunnion projecting beyond each of the links, and a detachable retainer on each of the projecting portions preventing disassembly of the saddle and links.

5. A bail assembly for a load-carrying'device,

the: cornbinationof anxarched saddle having a rounded and thickened bulbous underportion, theendsof the bulbous underportion terminating in parallel'plane abutments at opposite ends of-the saddle, a trunnion projecting from each endcof .thesaddlebeyond said abutments and positioned thereabove, a pair of bail links each suspended from one of said trunnions, each bail having an integral eye at one end having a side surface engaging one of the abutments, and each eye having an aperture receiving one of said trunnions.

6. A bail assembly for a load-carrying device, the combination of: an arched saddle having a rounded and thickened bulbous underportion, the ends of the bulbous underportion terminating in parallel plane abutments at opposite ends of the saddle, a non-circular trunnion projecting from each end 'of thesaddlefbeyond said abutments and positioned "thereabove, a pair of bail links each suspended from one of said trunnions,

each bail having an integral eye formed at one end having a side surface engaging one of the abutments, and each eye having a non-circular aperture receiving one of said trunnions to pre ventrelativeturning movement of the saddle and links.

'7. A bail assembly for a load-carrying device, the combination of: an arched saddle having a rounded and thickened bulbous underportion, the ends of the bulbous underportion terminating in parallel plane abutments at vopposit'e ends of the-saddle, a square trunnion projecting from each end of the saddle. beyond said abutments and positioned thereabove, a pair of bail links each suspended from one of said trunnions each bail having an integral eye .-formed-at oneend having a side surface engaging one of theabutments, and'each' eye having a square-(aperture receivingoneof said trunnions to prevent relative turningmovement of thesaddle-and links.

8. A saddle for a load-carrying bail-assembly comprising: an arched member having arounded and thickened bulbous underportion, the-ends of the underportion terminating in parallel plane abutments'at opposite ends of the arch, and'coaxial non-circular trunnions projecting from each end of the saddle beyond-said abutments and positioned thereabove.

9. A saddle .for a load-carrying bail assembly comprising: an arched member having arounded and thickened bulbous underportion, the' ends of the underportion terminating in parallel plane abutments at opposite ends of the arch, and coaxial square trunnionsprojecting from each end of the saddle beyond-said abutmentsand positioned thereabove' JAMES *P. R-A'I'IGAN'.

REFERENCES CITED Thelfollowing references are of record in the file of this patent UNITED STATES PATENTS

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