US3716896A

US3716896A - Eccentrically locking apparatus holder

Info

Publication number: US3716896A
Application number: US00193258A
Authority: US
Inventors: E Seabourn; L Gatlin
Original assignee: Phillips Petroleum Co
Current assignee: Phillips Petroleum Co
Priority date: 1971-10-28
Filing date: 1971-10-28
Publication date: 1973-02-20
Anticipated expiration: 1990-02-20

Abstract

An eccentrically locking apparatus holder for attachment of a body thereof about a pipe, said apparatus having first and second flanges, a cam surface, and a rotatable eccentric bushing for movement of the bushing along the cam surface for urging the flanges toward one another and forcibly clamping the body about the pipe. At least one holding member is fixedly attached to the body for maintaining associated apparatus positioned relative to the pipe.

Description

United States Patent [19] [111 3,716,896

Seabourn et al. [4 1 Feb. 20, 1973 [54] ECCENTRICALLY LOCKING I 1,618,653 2/1927 Greve ..24/263 DL APPARATUS HOLDER 2,998,629 9/ I961 Smith ..l38/99 [75] Inventors: Ed. 0. Seabourn, Stavanger, Nory; Lonnie Glllill, Victoria, Primary Examiner-Bobby R. Gay

Assistant Examiner-Kenneth J. Dorner [73] Assignee: Phillips Petroleum Company i Arthur Young at [22] Filed: Oct. 28, 1971 [21] AppLNoJ 193,258 ABSTRACT [52] Us. Cl ..24/257, 24/248 E, 24/250, An eccenlrically lock ng apparatus holder for at- 133/99 4 tachment of a body thereof about a pipe, said ap- [5 l] Int. Cl ..A44b 21/00, F16] 55/16 paratus having first and second flanges, a cam Surf [58] Field of Search..24/8l CC, 243 S, 248 B, 248 E, and a rotatable eccentric bushing for movement of the /2 249 263 263 D 1310- bushing along the cam surface for urging the flanges 407, 138/99 toward one another and forcibly clamping the body about the pipe. At least one holding member is fixedly [56] Reta-mus Cited attached to the body for maintaining associated ap- 549,774 ll/I895 Forst ..24l250 R 10 Claims, 4 Drawing Figures 32 La 5 I a 4: {a 42 v ATENTEB tar/16,896

SHEET 10F 2 INVENTORS E.O. SEABOURN L.E. GATLIN ATTORNEYS PATENTEDFEBZOW $716,896

SHEET 2 OF 2 E.O. SEABOURN L.E. GATLIN mi 4 BY 64 a @044 ATTORNEYS INVENTORS ECCENTRICALLY LOCKING APPARATUS HOLDER It is desirable to provide an eccentrically locking apparatus holder for attaching secondary apparatus to a pipe. It is further desirable to provide an apparatus of the above-described type that is compact, having all portions thereof positioned in near proximity to the pipe, and being of sturdy construction and capable of being closed or locked about the pipe in sufficient securing engagement therewith that said secondary apparatus can be severely impacted without said apparatus holder being displaced along said pipe. One example use whe re the apparatus of this invention is particularly useful would be for installation about the mud line of an offshore drilling rig form maintaining the multiplicity of kill lines, choke lines, and hydraulic lines in a preselected position relative to said mud line.

The most significant advantages of the holder of this invention are that its unique, construction permits quick installation and takedown of the kill,1choke, and

hydraulic lines and that its construction is such thatlinear, tangential forces are exerted against-the flange portions for urging the body portion in a tighter gripping relationship with the pipe than heretofore util- 1 perimental use of the holder of this invention proved that all of said choke, kill, and hydraulic lines couldbe installed with a labor expenditure ofS l7-for each of the ten or moreholding members; i.e., $170 total for 10 1 units, as opposed to the heretofore $2,550 expenditure.

The holderof this invention also proved to more efficiently maintain saidlines without twisting orslipping along the mud line under the severeimpact loading placed onthe holder by wave action, the lines, and other apparatus during drilling operations.

Other aspects, objects, and advantages of .thepresent invention become apparent from a study of the disclosure, the appended claims, and the drawing.

The drawings are diagrammatic views of the apparatus of this invention: 1

FIG. I shows a top view of the apparatus installed on a pipe,

FIG. 2 shows a frontal view of the apparatus installed on a pipe,

FIG. 3 shows an example of pipe holders of the apparatus of this invention, and

FIG. 4 shows another embodiment of thebody of the apparatus. I

Referring to FIG. I, a body 2 having an axis and a generally circular opening 4 extending therethrough is coaxially installed in an encompassing relationship about a pipe 6, such as a mud line of an offshore drilling well. The body 2 has inner and

outer walls

8, 10 with a longitudinal opening 11 extending through the

body walls

8, 10 over .the length of said body 2. First and second spaced-apart

flanges

12, 14 are each positioned on opposed sides of the opening I l.

and a second end portion 16, 16', I8, 18" with each end portion of the flanges I2, 14 having a linkage opening 20 extending therethrough with the linkage linkage openings 20 of the second flange 14.

First and second

linear linkage members

22, 24 are W removably positioned through associated linkage openings 20 of the flanges l2, 14. Each linkage member has a longitudinal axis, first and

second end portions

26,28 and a retaining pin opening 30 formed through each end of

portion

26, 28 normal to the respective axes ofsaid

members

22, 24. In the installed position, the retaining pin openings 30 of the first end portions 26 of the first and

second linkage members

22, 24 are aligned relative one to the other as are the openings 30 at the opposed end of portions 28 thereof.

First and second retaining pins32, 34 are removably mounted through the retaining pin openings 30 at respective first and second end portions26, 28 of the first and

second linkage members

22, 24.

These

retaining pins

32, 34 can be secured relative to the

linkage members

22, 24 by having the ends thereof threaded and a nut placed on each end thereof. Since, however, the forces exerted longitudinally on the pins is'minimal, it is preferred that the pins be secured by a washer and an expansion plug arrangement as shown in FIG. 2. Such'a connection will permit more rapid replacement of itsassociated elements as they become worn and is of sufficiently sturdyconstruction to secure the pins 32, 34: Thedimensions of the retaining pins 32, 34'and the opening 30'should be of close tolerance to provide for uniform distribution of forces on the linkage members 22, 24.- At least one eccentric locking element- 36, 'preferably a plurality'of locking elements, areassociated with-the first retaining pin 32. The eccentric locking element 36 can be formed on the locking'pin-or canbe an eccentric bushing or protrusion that is fixedly attached to the first retaining pin 32. ln'zanother embodiment, the locking element 36 can be rotatably mounted onthe first retaining pin 32. It is preferred however that these be two eccentric locking elements as shown-in FIG. 1, with each of said elements being positioned adjacent a separate one of the

linkage members

22, 24 and between said

members

22, 24.

A cam element 42 is positioned on an outer surface .44 of the first flange12 adjacent each of the eccentric locking elements 36 for receiving said locking elements A handle 46 is fixedly attached to the first retaining pin or locking element 36 for rotating said element along its associated cam element 42 for linearly moving the

flanges

12,14 relative one to the other and changing the diameter of the body opening 4.

In order to prevent accidental unlocking of the apparatus and to form a more compact structure, it is preferred that the handle 46, in the position where the flanges l2, 14 are urged toward one another, its locking position, is immediately adjacent the outer wall of the body and more preferably in contact therewith. A hook can also be connected to the wall 10 for latching over the handle 46 to further maintain the handle at that position. 7

At least one apparatus holding member 50 is attached to the body 2 and extends outwardly therefrom. Referringto FIG. 3, a plurality of pipe clamps 52 are attached to the holding member 50 for maintaining kill lines, fill lines, hydraulic lines, etc.,'for example. These pipe clamps 52 can be of any construction known in the art and can preferably be, for example, of similar construction to the apparatus of this invention to form a quick release quick installation arrangement. It should be understood that there can be a plurality of holding members 50attached to the body 2 and said holding members can extend outwardly therefrom at a plurality of different angles, spaced-apart locationsfetc. The relative positioning of course will be dependent upon the type of apparatus that will be attached thereto and the impacts which will be imparted by said apparatus.

In order to provide for replacement parts in order that the apparatus will continue to function smoothly after long use, it is preferred that a removable retaining pin liner 56 be positioned about the second retaining pin 34 with said liner being sized for contacting a second flange 14 and a pin 34 along substantially the entire lengths thereof between the first and

second linkage members

22, 24 So sizing the liner will also provide for a more even distribution of forces being placed on the second flange 14 at the locked position.

Liner elements

38, 40, for example, can also be provided for installation over the eccentric locking elements 36, 36'.

In order that large forces can be applied to flangesl2, 14 while substantially completely encompassing the pipe 6 with-the body 2, it is preferred that each of the flange surfaces adjacent one another be tapered across the width of the flange, best seen in FIG. 1, in a direction away from the associated flange for providing a space between the

flanges

12, 14 that is progressively larger in a direction from the opening of the body 2 outwardly therefrom.

Referring to FIG. 4, when impact is expected to be very severe, a plurality of protrusions 58, such as ridges or teeth, can be formed on the inner wall 8 of the body 2. When the apparatus is in the locked position, the forces exerted against the pipe 6 by the inner wall protrusions 58 will be increased per unit area of contactin g surface.

Other modifications and alterations of this invention will become apparent to those skilled in the" art from the foregoing discussion and accompanying drawing, and it should be understood that this invention is not to be unduly limited thereto.

What is claimed is:

1. An eccentric locking apparatus holder for attaching secondary apparatus to a pipe, comprising:

a body having an axis, an opening extending coaxially therethrough, inner and outer walls, a longitudinal opening extending through the body walls over the length of said body, and first and second spaced-apart flanges each having first and second end portions and each being positioned on an opposed side of the opening and extending along the length of the body, each end portion of the flanges having a linkage opening extending therethrough with the linkage openings of the first flange being aligned with the linkage openings of the second flange;

first and second linkage members each having first and second end portions, a retaining pin opening formed through each end portion and being removably positioned through associated linkage openings of the flanges;

first and second retaining pins each being mounted through the retaining pin openings of their respective portion of the linkage members;

at least one eccentric locking element positioned on the first retaining pin at a location between the first portions of the first and second linkage members;

a cam element positioned on an outer surface of the first flange adjacent each of the eccentric locking elements for receiving said locking element;

a handle connected to the eccentric locking element for rotating said element, moving said element along the cam element, linearly moving the flanges relative one to the other, and changing the diameter of the body opening in response thereto; and

at least one apparatus holding member being attached to the body and extending outwardly therefrom.

2. An apparatus, as set forth in claim 1, including a removable retaining pin liner positioned about the second retaining pin in contact with the second flange and the pin along substantially the entire length between the first and second linkage members.

3. An apparatus, as set forth in claim 1, wherein the cam element has a surface of a configuration for receiving the associated locking element and being in contact with the eccentric locking bushing over an are greater than about 45 in said received position.

4. An apparatus, as set forth in claim 1, wherein the inner wall of the body has protrusions formed thereon.

5. An apparatus, as set forth in claim 1, wherein the handle, in the position wherein the flanges are urged toward one another, is immediately adjacent the outer wall of the body.

6. An apparatus, as set forth in claim 1, wherein each of the flange surfaces that are adjacent one another are tapered across the width of the flange in a direction away from the associated flange for providing a space between the flanges that is progressively larger in a direction from the opening of the body outwardly therefrom.

7. An apparatus, as set forth in claim 1, wherein the holding member has a plurality of clamps attached thereto for maintaining a plurality of second conduits positioned relative to the eccentric locking apparatus holder and its associated pipe.

8. An apparatus, as set forth in claim 1, wherein there are two eccentric locking elements with associated cam elements each positioned adjacent one of the linkage members.

9. An apparatus, as set forth in claim 8, wherein the handle is positioned between said locking elements.

10. An apparatus, as set forth in claim 1, including a removable liner positioned about each of the eccentric locking elements.

Claims

1. An eccentric locking apparatus holder for attaching secondary apparatus to a pipe, comprising: a body having an axis, an opening extending coaxially therethrough, inner and outer walls, a longitudinal opening extending through the body walls over the length of said body, and first and second spaced-apart flanges each having first and second end portions and each being positioned on an opposed side of the opening and extending along the length of the body, each end portion of the flanges having a linkage opening extending therethrough with the linkage openings of the first flange being aligned with the linkage openings of the second flange; first and second linkage members each having first and second end portions, a retaining pin opening formed through each end portion and being removably positioned through associated linkage openings of the flanges; first and second retaining pins each being mounted through the retaining pin openings of their respective portion of the linkage members; at least one eccentric locking element positioned on the first retaining pin at a location between the first portions of the first and second linkage members; a cam element positioned on an outer surface of the first flange adjacent each of the eccentric locking elements for receiving said locking element; a handle connected to the eccentric locking element for rotating said element, moving said element along the cam element, linearly moving the flanges relative one to the other, and changing the diameter of the body opening in response thereto; and at least one apparatus holding member being attached to the body and extending outwardly therefrom.

3. An apparatus, as set forth in claim 1, wherein the cam element has a surface of a configuration for receiving the associated locking element and being in contact with the eccentric locking bushing over an arc greater than about 45* in said received position.