US2896762A - Bumper mat for pipe - Google Patents

Description

July 28, 1959 B. J. STANSBURY BUMPER MAT FOR PIPE Filed April 22, 1955 flaw/1. JVIIOMJJWA/JZVIK United States Patent BUMPER MAT FOR PIPE Burton J. Stansbury, Bakersfield, Calif.

Application April 22, 1955, Serial No. 503,243

1 Claim. (Cl. 193-41) In the drilling of oil, water, or gas wells, the casing is stacked on a rack or frame outside of the derrick, and this pipe is removed from the stack a length at a time and moved into the derrick as required. These lengths of casing or pipe as they are dropped onto the groundfrom the stack of pipe are frequently damaged, due to impact with the ground or with objects lying thereon.

An object of my invention is to provide a'bumper mat upon which a length of pipe or casing can strike as it is rolled off of a stack of pipe onto the ground.

Another object of my invention is to provide a novel bumper mat of the character stated, which is so constructed that it will absorb the shock or impact of the pipe as it drops off of a stack and, furthermore, will then permit the pipe to roll oif of the bumper and onto the ground.

Still another object of my invention is to provide a novel bumper mat of the character stated which is simple in construction, inexpensive to manufacture and effective in use.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description and the appended claim.

In the drawing:

Figure 1 isa top plan view of my bumper mat for pipe.

Figure 2 is a side view of the same.

Figure 3 is an end view of the same.

Figure 4 is a sectional view taken on line 44 of Figure 2.

Referring more particularly to the drawing, my bumper mat 1 includes a base 2 and a resilient shock absorbing member 3. The base 2 is formed, fabricated or molded of the following parts: Two structural steel members, preferably angle irons 4 and 5 are arranged in spaced relation, and one leg of the angle rests on the ground while the other leg is positioned vertically. A saddle plate 6 is fixedly attached to the vertical parts of the members 4 and 5 and is preferably welded thereto. The saddle plate 6 acts as a rest or support for the resilient pad 3, as will in position.

be subsequently described. End plates 7 and 8 are attached to the members 4 and 5 at each end thereof and 2,896,762 Patented July 28, 1959 these end plates are also preferably welded or otherwise fixedly attached to the members 4 and 5. It will be noted that the structural members 4 and 5 are tapered from one end to the other, substantially as shown in Figure 2, the purpose'being to provide an inclination to the bumper mat 3 so that the pipe or casing 9 will roll oif of the bumper mat after the pipe is dropped thereon from the stack.

The resilient bumper 3 is preferably tubular in form and is constructed of a nonmetallic resilient material, such as rubber or plastic. The bumper 3 is held onto the saddle 6 in the following manner: A plate 10 rests within the bore 11 of the bumper 3 and a plurality of bolts 12 extend through the saddle 6 and the plate 10, thus securely holding the resilient or cushion member 3 Furthermore, this construction permits the member 3 to be removed and replaced when worn or broken. The resilient cushion 3 may be formed as a p1urality of complementary sections, if desired.

In operation the bumper mat assemblies are positioned adjacent to a stack of pipe or casing, and these bumper mat assemblies are arranged so that the resilient cushion members 3 are inclined away from the stack of pipe. The pipe sections, as they are rolled off of the stack, fall upon and first strike the resilient cushion members 3, thus absorbing or cushioning the fall of the pipe. The pipe then rolls off of the cushion members 3, due to their inclination, and the pipe is subsequently picked up by a suitable conveyor and moved into the derrick.

Having described my invention, I claim:

A bumper mat for pipe comprising a portable elongated base, a concave saddle fixedly mounted on top of said base, a thick walled cylindrical bumper pad formed of a nonm'etallic resilient material mounted in said saddle, said saddle partly encircling said bumper pad, said bumper pad projecting above the base to receive a falling pipe thereon, and a plurality of bolts extending through the Wall of the bumper pad and into the saddle to removably secure said bumper pad to the saddle, said base being ver tically tapered from one end to the other.

References Cited in the file of this patent UNITED STATES PATENTS France Feb. 8, 1950

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