US987683A - Pipe-coupling. - Google Patents

Description

J. H. ALLAN.

PIPE COUPLING. APPLICATION FILED AUG. 6, 1909.

Patented Max: 21, 1911.

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JAMES HARRY ALLAN, OF HAZEL HURST, PENNSYLVANIA.

PIPE-COUPLING.

Specification of Letters Patent.

Application filed August 6, 1909.

To all whom it may concern:

Be it known that I, JAMES H. ALLAN, of Hazel Hurst, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Pipe- Couplings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in pipe couplings, the object being to provide a simple, and inexpensive pipe coupling, that can be readily and quickly applied to the abutting ends of smooth pipes such as are extensively used for oil and natural gas, and it consists in a packing surrounding the abutting ends of the pipes, and peculiarly constructed sleeves adapted to compress the packing around the ends of the pipe, and over the joint between the pipes, and be clamped to the latter, by the act of connecting the sleeves.

My invention further consists in the details of construction as will be more fully explained and pointed out in the claims.

In the accompanying drawings, Figure l is a view in elevation of the coupling assembled; Fig. 2 is a view in longitudinal section of same; Fig. 3 is a view in end elevation of Fig. 1; Fig. 4 is a view in elevation of the outer sleeve, and Fig. 5 is a similar view of the inner sleeve.

1 represents the pipe section having smooth abutting ends, and 3 is a packing, which may be of rubber, fiber, or any other suitable material. This packing may also be in the form of a cylinder to fit over the pipes, or in the form of a sheet or strip wrapped around the pipes and covering the joint.

4 is the inner sleeve, provided at its outer end with a head 5 and a flange 6. The sleeve is, normally cylindrical, or but slightly tapering externally, and its bore is conical or tapering, its greatest diameter being at its end farthest removed from its head 5. The smaller diameter of the bore of the sleeve is slightly greater than the diameter of the pipe, while the head 5 and flange 6 are bored to snugly fit the pipes, the opening however being sufliciently large to permit the sleeve to be readily placed n position on the pipe. Th1s sleeve 4 1s slotted as at 7 from its free end up to a point near the head, as shown in Fig. 5,

and when assembled is substantially inclosed by the sleeve 8 provided with a head 9 and flanges 10 and 11, the former being integral with the head, and the latter integral with the opposite end of the sleeve. The bore or opening in the head 9 of sleeve 8 is adapted to snugly fit the pipe 1, while the body of the sleeve is tapered internally, its bore being outwardly flaring from the shoulder 12 of head 9 to the end carrying flange 11. The sleeves 4 and 8 are of such size, that when sleeve 8 is forced over the slotted sleeve 7, the sections of the latter formed by the slots 7, will be forced inwardly toward the packing until the internal surface of the sleeve 7, which as previously explained is normally tapering, will be substantially cylindrical thus tightly compressing the packing 3 against the pipes 1, and locking the coupling to the pipes, and clamping the two pipes together by the friction between the two sleeves, and the friction and pressure of the inner sleeve against the packing.

In applying the coupling, the sections thereof are placed on the pipes, one on each, and the two pipes are then brought together end to end as shown, and the packing applied to the oint so as to cover the joint, and lap the pipes on opposite sides. Sleeve 4 is then moved into position over the packing and also over the joint, after which sleeve 8 is moved over the slitted end of the sleeve 4. The bolts 13 are then passed through holes in the flanges 611 and 10 of the two sleeves, and nuts 14 are screwed onto the ends of the bolts. By now tightening up on the nuts the sleeves will be moved toward each other thus causing the slotted sleeve 4, to be forced inwardly against the packing. The telescoping movement of the sleeves, compresses the packing endwise, while the compression of the inner sleeve 4 compresses and forces the packing solidly against abutting ends of the pipes, thereby closing and packing the oint and locking the two pipes solidly together. When the two sleeves are in their operative position, the flanged end 11 rests on sleeve 4 between the head 5 and closed ends of the slots in sleeve 4, thus completely closing the slots and forming a tight joint with sleeve 4, thereby not only adapting the coupling for oil or other liquid pipes but also for gas pipes.

My improvement is simple in construction is effective in use, can be adapted for any size pipes and can be applied by unskilled labor and without the use of any tools other than a wrench.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but,

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is:

1. In a pipe coupling, the combination with an integral sleeve rigid at its outer end and yielding from its inner end throughout a portion of its length, the said sleeve adapted to embrace the abutting ends of two pipe sections, of a second integral sleeve rigid throughout its length and having a tapering bore adapted to overlap the yielding portion of said first mentioned sleeve and force the latter toward the pipes, and bolts passing through both sleeves for rigidly locking them together.

2; In a pipe coupling the combination with a packing embracing the abutting ends of two pipes and an integral sleeve rigid :at its outer end and yielding from its inner end throughout a portion of its length, the said sleeve inclosing the packing, 01": a second sleeve having a tapering bore adapted to overlap the yielding portion of the first mentioned sleeve and compress the latter against the packing, and bolts passing through both sleeves for rigidly locking them together.

3. In a coupling, the combination of two flanged telescopic sleeves, the inner one of which is integral and counterbored and yielding at its inner end, and the outer one integral and continuous at both ends and provided with a tapering bore, a packing within the counterbored section of the inner sleeve and adapted to embrace the abutting edges of two pipes and means engaging the flanges of the two sleeves for rigidly locking them together.

4:. In a coupling, the combination with an inner sleeve continuous and integral at one end and slotted at the other end and provided with a flange at its continuous end, and an outer sleeve having a flange at each end and provided with a conical bore adapted to receive the slotted end of the 5 inner sleeve, and means for locking the two sleeves together.

5. In a pipe coupling, the combination with an integral sleeve yielding at one end and provided with a flange at its other end, ot a second sleeve having a flange and a tapering bore adapted to receive the yielding end of the first mentioned sleeve and force the latter toward the pipes, and means engaging the flanges of both sleeves for rigidly Ror E. DIAMENT, A. SPRINGSTEEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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