US2464109A

US2464109A - Pipe rack

Info

Publication number: US2464109A
Application number: US608002A
Authority: US
Inventors: Homer J Woolslayer; Erwin A Campbell; Jenkins Cecil
Original assignee: Lee C Moore Corp
Current assignee: Lee C Moore Corp
Priority date: 1945-07-31
Filing date: 1945-07-31
Publication date: 1949-03-08
Anticipated expiration: 1966-03-08

Description

March 8, 1949. -H. J. wooLsLAYER ErAL 2,454,109

PIPE'RACK Filed July 31, 1945 2- sheets-sheet 1 a i HI SR w l N N +J' `1 N' '3 [LF 'z r g H u L* I Q N\ 2` 7 H H l N m g m 'Re' i *l D v saam N :s :e

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PIPE RACK Filed July 3l, '1945 2 Sheets-:Sheet 2 Patented Mar. 8, 1949 UNITED STATES PATENT OFFICE PIPE RACK Homer J. Woolslayer, Erwin A. Campbell, and Cecil Jenkins, Tulsa, Okla., assignors, by mesne assignments, to Lee C. Moore Corporation, Pittsburgh, Pa., a corporation of Pennsylvania Application July 31, 1945, Serial No. 608,002

2 Claims. 1

This invention relates to racks on which pipes are piled beside oil well derricks.

It is customary practice to build skeleton platforms or racks on the ground beside oil well derricks, These racks, which are only a iew feet high, support the pipes that are to be used in the well drilling operations. Generally, there is a walk extending across the rack to the base of the derrick. When a pipe is needed in the derrick, it is rolled along the rack to the walk and then dragged lengthwise toward the derrick floor, which may be connected to the walk by means of a ramp. Heretofore, it has been the practice to fabricate these racks entirely in the lield, thereby requiring the handling of many parts and the consumption of a considerable amount of time. Considerable time and eli'ort also are required to level the feet of the rack so that undue stresses will not be placed on some parts of it.

It is among the objects of this invention to provide a pipe rack which can be quickly constructed in any desired size from a relatively few interchangeable prefabricated units; which is easily dismantled for transportation to a new location, which is exceptionally strong, and which is easy to level up.

In accordance with this invention each of a plurality of spaced parallel pipe-supporting beams, resting on the ground, is formed from a plurality of prefabricated truss members disposed end to end and detachably connected together. These truss members are triangular in shape and preferably interchangeable. By connecting more or less of them together, the beams can be made any desired length. Cross members are detachably connected to adjacent beams to tie them together in the desired spaced relation and to stabilize the rack. Each truss is in contact with the ground at only one point. Preferably, adjoining ends of the truss members are provided with cooperating dowel pins and sockets, and with means for bolting them together. It is preferred to divide each beam into two parts the adjacent ends of which are detachably connected to the opposite sides of a walkway extending across the rack. The walkway likewise is formed from prefabricated truss members detachably connected together and to the beams in the same way as the trusses of the beams.

The preferred embodiment of the invention is illustrated in the accompanying drawings in which Fig. 1 is a plan view of our rack connected to the floor of a derrick; Fig. 2 is a side view of the Walkway; Fig. 3 is a side view of the pipe-supporting beams; Fig. 4 is an enlarged fragmentary vertical section of the walkway taken on the line IV-IV of Fig. 1; Fig. 5 is an outer end view of one of the pipe-supporting beams; Fig. 6 is a fragmentary side view of two truss members about to be connected together; and Fig. '7 is an enlarged vertical section through the walkway taken on the line VII- VII of Fig. 2.

Referring to Fig. 1 of the drawings, two groups of spaced parallel pipe-supporting beams I rest on the ground on opposite sides of a walkway 2 that leads to the floor 3 of an oil well derrick. As shown in Fig. 3, each of these beams is formed from a plurality of prefabricated truss members Il that are disposed end to end, although for a very short beam only one truss could be used. The top of each truss member is a channel 5 to one end of which a vertical leg 'l is connected. A diagonal bracing member 3 connects the opposite end of the channel to the lower end of the leg. A shoe 9 may be mounted on the lower end of the leg to distribute the load over the ground and to provide a stable support for the truss. The horizontal channel and the diagonal brace are connected by intermediate braces IIJ.

Mounted on the pointed end of each truss is a vertical plate II from the upper end of which a stud or dowel pin I2 projects, as shown in Fig. 6. Below the pin there is a bolt hole through the plate. The opposite end of each truss likewise is provided with a vertical plate I3 which projects laterally from both sides of the truss. The upper part of this plate is provided with a socket or opening I4 for receiving the pin on the adjoining truss, while the lower part is provided with a bolt hole I6 registering with the hole in the adjoining plate I I. When the pin is inserted in opening I4 it aligns the two trusses, while a bolt Il through the bolt holes fastens the two plates together so that the trusses can not come apart. The pin takes most of the shear stresses and makes it unnecessary to use more than one bolt at each joint. As shown in Fig. 5, the laterally projecting portions of plate I3 are provided with pairs of bolt holes I8 to which are fastened the ends of horizontal cross members I9, generally angle irons, which connect the laterally spaced trusses into a rigid structure.

As each truss engages the ground at only one point, which is at its shoe 9, little difliculty is experienced in leveling the beams. By making the beam trusses all alike, they are interchangeable so that they can be connected together in any order. Timbers 2| preferably are laid on top of the beams, while stop members 22 may be 3 clamped to the outer ends oi the beams to keep the pipes from rolling oil.

The walkway 2, which also serves as a skidway for pipes, extends outwardly far enough beyond the outer beams I to clear the longest pipe that may be laid across the beams. The trusses on opposite sides of the walk, point in oppositel directions so that their elevated ends can be fastened to and be supported by the walkway. As shown in Fig. 2, the two parallel beams from which the walkway is constructed are formed in the same general manner as pipe-supporting beams I, from triangular truss members detachably connected end to end. However, each beam of the walkway may contain a long truss 25 that extends entirely across the pipe-supporting beams. This truss has a center leg from which diagonal braces 21 extend upwardiy to the opposite ends of the top channel Each end of the truss is provided with a plate 29 from which a dowel pin projects in the same manner as pins I 2. Below the pin there is a bolt hole through the plate.

The trusses 32 and 33 at the opposite ends of this center truss point in opposite directions so that the pins on the center truss can project into openings 35 (Fig. 7) in vertical angle members 3l (Fig. 4) welded to the legs of the end trusses, and bolts 4I can fasten plates 29 to angle members 3l, all as in beams I. The inner ends of the end trusses are each provided with a pair of vertically spaced holes 39 for receiving the pin I2 and bolt I1 by which the adjacent pipesupporting truss is connected to the walkway. The outer end of truss 32 is supported, through a pin and bolt connection similar te those just described, by a stairway 34 by which the top of the walkway is reached from the ground. As shown in Fig. 4, the outer end of truss 33 is provided with a plate 35 from which a pin 36 projects through a bracket 31 bolted to the inside of one of a pair of inclined supports 38 that extend from the ground to derrick :door 3. A bolt 39 fastens the plate and bracket together. One of these supports 39 also forms one side of a stairway 40 (Fig. 1) from the ground to the derrick floor.

As shown in Fig. 7, the two beams of the walkway are connected together at their tops by horizontal cross members 42 bolted to the beams. Thus, a right-angle bracket 43 is welded to each end of a cross member with its end face abutting the instanding leg of the adjoining angle member 3l. Holes 44 (Fig. 4) through the angle member and through bracket i3 receive bolts that connect them together. The feet of the beams are connected by cross channels 46 that serve as shoes. Diagonal braces 41 are bolted to the top cross members and to the legs of the beams. These cross members and braces can be disconnected from the beams when it is desired to break the walkway down into individual trusses for shipment. The walkway is covered by planks L38 which also cover the space between the inner end of the walk and the derrick oor to form an inclined ramp.

It will be seen that with the prefabricated truss members disclosed herein, a pipe rack of any desired size can be built quickly with a minimum amount of labor and parts. Also, it can as readily be taken apart for movement to a new location or for temporary storage. Only a few bolts are required for the entire rack. Each all welded truss is amply strong for the load it is required to support. As each truss rests on the ground at only one point, the work of providing suitable supports for the trusses is simplified. It desired, the walkway can be omitted, and the elevated ends of the beams supported by any suitable means.

According to the provisions of the patent statutes, we have explained the principle and construction of our invention and have illustrated and described what we now consider to represent its best embodiment. However, We desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specically illustrated and described.

We claim:

1. An oil well pipe rack comprising a plurality of spaced parallel pipe-supporting beams adapted to rest on the ground, a pair of spaced parallel beams adapted to rest on the ground and eX- tending transversely of said pipe-supporting beams and projecting from opposite sides thereof, each of said beams being formed from a plurality of prefabricated truss members disposed end to end, means detachably connecting adjoining ends of said members in each beam together, means detachably connecting ends of said pipesupporting beams to the sides of said transverse beams, and a floor mounted on said transverse beams to form a walk across said pipe-supporting beams.

2. An oil well pipe rack comprising a plurality of spaced parallel pipe-supporting beams adapted to rest on the ground, a pair of spaced parallel beams adapted to rest on the ground and extending transversely of said pipe-supporting beams and projecting from opposite sides thereof, each of said beams being formed from a plurality of prefabricated truss members disposed end to end, means detachably connecting adjoining ends of said members in each beam together, means detachably connecting ends of said pipe-supporting beams to the sides of said transverse beams, a door mounted on said transverse beams to form a walk across said pipe-supporting beams, a stairway connected to one end of said floor, and a ramp extending upwardly from the opposite end of the oor.

HOMER J. WOOLSLAYER.

ERWIN A. CAMPBELL. CECIL JENKINS.

REFERENCES CITED The ioilowing references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,312,861 Morris Aug. 12, 1919 1,917,764 Howie July 11, 1933 1,941,952 Nickles Jan. 2, 1934 1,969,656 Marlowe Aug. 7, 1934 2,306,311 Holland Dec. 22, 1942 2,308,565 Mitchell Jan. 19, 1943 FOREIGN PATENTS Nuifrber Country Date 589,377 France May 28, 1925