US1398093A - William j - Google Patents

Description

w. J. DROPPLEMAN.

GAS cAsms HEAD.

APPLICATION. FILED MAR. I1, I92].

Patented Nov, 22, 1921.

UNITED STATES PATENT QFFlCE.

GAS CASING- HEAD.

Specification of Letters Patent.

Patented Nov. 22, 1921.

Application filed March 11, 1921. Serial No. 451,457.

To all whom it may concern Be it known that I, WILLIAM J. DROPPLE- MAN, a citizen of the United States, and resident of McWhorter, in the county of Lewis, State of West Virginia, have invented certain new and useful Improvements in Gas Casing Heads, of which the following is a description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to casing heads for gas and oil wells and has for its object to provide a casing head for such wells which will be simple and inexpensive in construction, comparatively light in weight, readily applied to and removed and which will be adapted to fit the collar or coupling on the upper end of the top section of the well casin so as to make a tight joint with it.

Vith these and other objects hereinafter explained in view, my invention consists in the construction and combination of elements hereinafter described and claimed.

Referring to the drawings;

.Figure 1 is a perspective view of a casing head embodying my invention complete and ready for use.

Fig. 2 is a vertical central sectional view of the casing head shown in Fig. 1, with a portion of the well casing and the coupling carried by it.

Fig. 3 is a side elevation of the section of tubing from which the body of the casing head is formed.

Fig. 4 is a perspective view of the top clamp, and

Fig. 5 is a perspective view of the packing ring.

In the drawings 1 indicates a section of well casing, or other tubing, exteriorly screwthreaded at its lower end at 2, to fit the coupling 8 on the upper end of the top section at of a well casing. In forming the casing head this section of tubing is provided at its upper end with longitudinal V shaped incisions to leave between them tongues 5. These tongues are bent inward from their bases and then bent upward to inclose between them a section of smaller tubing 7 the upper ends of the tongues being bent outward to form ears 8. The tongues 5 are welded together at their edges and are welded to the section of smaller tubing 7.

The base portions of the tongues when thus welded together form a somewhat dome shaped top 6. The section of smaller tubing 7 is outwardly flared at its upper end as shown at 9, to receive a packing ring 10 which is exteriorly tapered as shown. A top clamp 11 having an opening 12 through it and 2. depending flange 13 surrounding the opening and adapted to enter the flared upper end 9 of the smaller tubing 7 serves, when forced downward, to compress the packing ring 10 against the leading off pipe 14: thus insuring a tight joint. In order to force this top clamp downward it is provided with openings in line with similar openings in the ears 8 to receive bolts 15.

The body of the casing head is preferably provided with laterally extending tubes 16 and 17 preferably interiorly screwthreaded, to receive lateral leading off pipes if desired. These laterally extending tubes also serve as convenient handles for carrying the casing head and for rotating it to screw it into place in the coupling 3. The casing being exteriorly screwthreaded to fit within the coupling 3, if there should be any leakage, a packing ring may readily be inserted within the coupling to rest on the upper end of the top section of pipe 4 and be compressed by screwing the casing head down onto it.

While I prefer to make the body of the casing head of a section of ordinary well casing having the usual screwthread cut on it. It may, of course be made of special tubing. The section of tubing, whether cut from a length of easing or special tubing, from which the body of the casing head is made may be of any diameter desired. Being relatively thin material, particularly if ordinary well casing is used, the casing head will be of comparatively light weight making it convenient for transportation and easily handled in placing it in position.

Having thus described my invention what I claim is;

1. A casing head comprising a body formed of tubing exteriorly threaded at its lower end and having its upper portion cut to form longitudinal tongues, the base portions of said tongues being bent inward and united to form a top and the outer portions bent upward and united to form a restricted passa e adapted to receive a leading off pipe.

2. casing head comprising a body formed of tubing eXteriorly threaded at its lower end and having its upper portion cut to form longitudinal tongues, the base portions of said tongues beingbent inward and united to form a top and the outer portions bent upward about a section of tubing of relatively small diameter and united to each other and to said section of smaller tubing.

3. A casing head comprising a body formed of tubing exteriorly threaded at its lower end and having its upper portion out to form longitudinal tongues, the base por- 10 tions of said tongues being bent inward and

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