US 3266255 A
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Description (OCR text may contain errors)
16, 1966 J. J. DOUGHERTY 3,
DRIVE-FIT TRANSITION SLEEVE Filed Dec. 10, 1963 34 I INVENTOR- JOHN J DOUGHERT) ii 62x5 W United States Patent 3,266,255 DRIVE-FIT TRANSITION SLEEVE John J. Daugherty, Cedar Grove, NJ. (262 Rutherford Blvd., Clifton, NJ.)
Fiied Dec. 10, 1963, Ser. No. 329,566 2 Claims. (Cl. 6153) This invention relates generally to the art of piling and more particularly to a drive-fit sectional transition sleeve for connecting pipe or shell sections of varying diameters.
Piles are used to support or to form foundations for structures such as buildings, banks, bnidges, conduits, piers, wharves, etc. by inserting the piles int-o or through the yielding surface strata far enough to obtain a solid support for the principal structure. A composite structure is ordinarily used for this purpose.
One of the problems in piles of this type is that of joining a tubular pile section of one diameter to a tubular pile section of a different diameter.
An important object of the present invention is to provide a sectional drive-fit transition sleeve for eliminating the above problem.
Another object of the invention is to provide a sectional transition sleeve for joining tubular pile sections that has a high resistance to lateral and tensional stresses and forces as well as compressional forces.
It is a specific object of the invention to provide a sectional transition sleeve having a narrow section serving as a plug and having a wider section serving as a socket for joining tubular pile sections of different diameters in offset relation.
It is also an object of the invention to provide a sec tional transition sleeve for joining tubular pile sections that is economical to manufacture, rugged in construction and is highly eflicient for the purpose intended.
Broadly the invention consists of a transition sleeve constituted by a pair of flanged pipes telescoped one 'within the other and force fitted to each other, one pipe constituting a socket and the other a plug, the flange of the socket member having a larger diameter than the diameter of the flange of the plug member whereby pile sections of varying diameters may be connected in offset relation.
For further comprehension of the advantages and benefits of the invention, reference will be had to the accompanying drawing forming a material part of this disclosure, whe-rein FIG. 1 is a side elevational view of a fragment of a pile with a transition sleeve joining the upper and lower tubular pile sections, said sleeve embodying one form of the invention.
FIG. 2 is a vertical sectional view taken on the line 2 2 of FIG. 1.
FIG. 3 is a view as seen from the line 3-3 of FIG. 1, looking in the direction of the arrows.
FIG. 4 is a view as seen from the line 3-3 looking downwardly.
FIG. 5 is a sectional view similar to FIG. 2 of a transition sleeve embodying a modified form of the invention, the tubular pile sections being shown in dot-dash lines.
Referring in detail to the drawing, in FIG. 1 a fragment of a pile is shown and designated generally by the reference numeral 10. The pile comprises two principal parts, an upper tubular section constituted by a metal pipe 12 and a lower tubular section constituted by a metal pipe 14. The upper pipe 12 is wider in diameter than the lower pipe 14.
The upper section and the lower section are joined by a drive-fit sectional transition sleeve 16 made in accordance with the present invention. One section of the tran- 3,266,255 Patented August 16, 1966 sition sleeve, the top section as viewed in FIG. 1, is constituted by an elongated steel pipe 20 of any desired diameter. The body of pipe 20 is of equal diameter throughout and may have any desired length suitable to resist lateral and tensional forces as well as compressional forces. An integral annular flange 22 is formed on one end of the body, the top end as viewed in FIG. 1, projecting inwardly and outwardly of the body. Spaced integral braces 24 support the outwardly projecting portion of the flange.
The other section, the bottom section as viewed in FIG. 1, of the transition sleeve 16 is constituted by a steel pipe 26 of substantially the same length as the pipe 20 and is formed with an annular flange 28 on one end thereof, the bottom end as viewed in FIG. 2. The body of the pipe 26 is of varying diameter tapering upwardly and inwardly, and the diameter thereof is slightly less than the diameter of the pipe 20. The diameter of flange 281 is less than the diameter of flange 22.
It will be noted that the bottom of pile section pipe 12 is secured to the flange 22 of sleeve pipe 20 outwardly of the body of pipe 20 of the transition sleeve by welding 30. The top of pile section pipe 14 is secured to the flange 28 of sleeve pipe 26 outwardly of the body of the pipe 20 by welding 32.
In assembling, the pipe 20 constituting the top section of the transition sleeve, with pipe 12 welded thereto, is lowered over the lower section, that is over pipe 26 with pipe 14- welded thereto, and forced downwardly to a force or wedge fit as indicated at 34. The tapering shape of the body of pipe 26 permitting this wedging action.
In operation, the pile drive-r strikes the flange 22 driving the pile sections into the ground, and the entire strain of the driving operation is transferred by the flange 22 to the pipe body 20 and to flange 28 so that the pile section pipe 12 simply is drawn down with the pipe 20.
The modified form of transition sleeve 16 shown in FIG. 5 differs from the sleeve 16 in that the upper section of the transition sleeve constituted by pipe 20' constitutes the plug member and is positioned inside the pipe 26' which constitutes the socket member of the transistion sleeve structure. Accordingly, the flange 22 of pipe 20' has no inwardly extending portion, and the flange 28 of pipe 26 has no outwardly extending portion. The inner surface of the pipe 26' tapers upwardly and outwardly instead of the outer surface thereof tapering upwardly and inwardly as in the transition sleeve 16 of FIG. 1, thereby providing a force or wedge fit as indicated at 34'. T hssaeeilmgnb HMflibrdizezolvehaoe CMFW eHM HM The assembling and operation of transition sleeve 16' are similar to that of sleeve 16.
While I have illustrated and described the preferred embodiments of my invention it will be understood that change in details of construction might be made without departing from the principle of the invention and I desire to be limited only by the state of the prior art and the appended claims.
1. A composite pile comprising a sectional body having an upper section and a lower section spaced therefrom, a transition sleeve interposed between and connecting the adjacent ends of said sections, said sleeve including a cylindrical pipe having a flange on one end of the body of the pipe, projecting transversely and inwardly and outwardly of the body of the pipe, the inside diameter of the body of the pipe being equal throughout its length, the bottom end of the upper section being welded to the flange on said pipe, another pipe having a cylindrical body fitted inside the first-named pipe, the lengths of the bodies of said pipes being equal, a flange on the end of the second-named pipe opposite to the flange on the a a first-named pipe, the diameter of the outside of the body larger than the outer diameter of the flange on the other of said second-named pipe varying throughout its length pipe.
whereby said second-named pipe is wedge fitted inside References Cited by the Examiner the first-named pipe with the free end of each pipe abutting UNITED STATES PATENTS the flange of the associated pipe, the top end of the lower 5 section being welded to the flange on said second-named 213691533 2/1945 CPhen 52 726 X pipe, said bottom section being offset inwardly from said 2,874,547 2/1959 Flore 6 53 upper section.
2. A composite pile as defined in claim 1 wherein the CHARLES O CONNELL Examiner outer diameter of the flange on the first-named pipe is 10 JACOB SHAPIRO, Examiner.