US2517626A - Hollow repair device for leaky boiler tubes - Google Patents

Hollow repair device for leaky boiler tubes Download PDF

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Publication number
US2517626A
US2517626A US775330A US77533047A US2517626A US 2517626 A US2517626 A US 2517626A US 775330 A US775330 A US 775330A US 77533047 A US77533047 A US 77533047A US 2517626 A US2517626 A US 2517626A
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tube
sleeve
threads
leaky
boiler
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US775330A
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Berg Solomon
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00—Arrangements for sealing leaky tubes and conduits
    • F28F11/04—Arrangements for sealing leaky tubes and conduits using pairs of obturating elements, e.g. washers, mounted upon central operating rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow in pipes or hoses
    • F16L55/12—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing

Definitions

  • This invention relates particularly to devices for stopping leaks, ruptures or the like in boiler tubes to permit the tubes to be repaired.
  • a prime object of the present invention is to provide such a device that is readily and speedily applied to a leaky or broken tube or pipe and which when applied will effectively seal the leak or break yet provide unobstructed passage for the flow of water, steam, air or the like.
  • Another object is to provide a device of this kind that permits repair of the damaged tube without stopping operation of the boiler or the like.
  • a further object is to provide a device of this kind that is simple in construction, easy to assemble and economical to manufacture.
  • Figure l is a longitudinal sectional view showing my improved stopper applied to a leaky hol low boiler tube.
  • Figure 2 is a side elevational view of the im-.
  • Figure 3 is a cross sectional view taken on the plane of the line 3-3 of Figure 1.
  • Figure 4 is a cross sectional view taken on the plane of the line 4-4 of Figure 1.
  • the improved stopper comprises a tube or pipe of metal I, the external surface of which is smooth at its center as indicated at 2, the remainder of said surface being formed with screw threads.
  • the threads to the right of said central portion as indicated at 3 are cut in one direction, for example, right hand threads, and the threads to the left as indicated at 4 are cut in the opposite direction, or left hand threads.
  • On the right hand end of the tube is a frusto-conical metal sleeve member 5 formed with internal screw threads adapted to mesh with the right hand screw threads 3.
  • a similar sleeve member 6 is mounted on the left hand end and has internal screw threads adapted to mesh with the left hand threads 4, of the tube.
  • an elongated expansible packing sleeve 1 formed of rubber or other suitable elastic, expansible or compressible material.
  • the sleeve 1 extends across the threaded sections of the tube and seats on the beveled outer surfaces of the sleeve members 5 and 6.
  • the parts are assembled as shown in Figure 2 with the sleeve" as to afford a sliding fit with the interior of the hollow boiler tube to be repaired, and that various sized stoppers will be used for various sized boiler tubes.
  • the assembled unit is driven into the cracked or leaky boiler tube 8 to be repaired until it is opposite the leak or crack 9 therein and until the leak is positioned between the movable sleeve members 5 and 6 as shown in Figure l.
  • a wrench or other tool is now applied to the end of the tube I, each end of the tube being provided with opposed slots l0 in its edge to receive such a tool, and the tube is turned in one direction, for example, to the left.
  • a device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve member on each end of said tube and having internal screw threads adapted to mesh with the threads on the corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elastic sleeve surrounding said frusto-conical sleeve members and relatively.
  • a device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads at one end being right hand threads and the threads at the other end being left hand threads, a frusto-conical sleeve member on each threaded end of said tube and having internal screw threads adapted to mesh with the threads on the, corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elongated rubber sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby upon inward movement of said frusto-conical sleeve members toward each other said rubber sleeve is expanded into contact with the inner surface of a boiler tube enclosing same to seal a rupture therein, the engagement of said rubber sleeve with said inner surface of the boiler tubev and with the tapered surfaces of said frustoconical sleeve members preventing
  • a device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve 5 smaller ends facing each other, and an expansible sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby said expansible sleeve is expanded upon movement of said frustoconical sleeve members toward each other, said tube having means to be engaged by a tool for rotating the sleeve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Pipe Accessories (AREA)

Description

Aug. 8, 1950 s. BERG 2,517,626
HOLLOW REPAIR DEVICE FOR LEAKY BOILER TUBES Filed Sept. 20. 1947 mul l lu ggl WWI /l? Will/191W INVENT R.
SOLOMON ER ATTORNEY Patented Aug. 8, 1950 HOLLOW REPAIR DEVICE FOR LEAKY BOILER TUBES Solomon Berg, Newark, N. J.
Application September 20, 1947, Serial No. 775,330
3 Claims.
This invention relates particularly to devices for stopping leaks, ruptures or the like in boiler tubes to permit the tubes to be repaired.
A prime object of the present invention is to provide such a device that is readily and speedily applied to a leaky or broken tube or pipe and which when applied will effectively seal the leak or break yet provide unobstructed passage for the flow of water, steam, air or the like.
Another object is to provide a device of this kind that permits repair of the damaged tube without stopping operation of the boiler or the like.
A further object is to provide a device of this kind that is simple in construction, easy to assemble and economical to manufacture.
Other objects and advantages of the invention will be apparent from the description thereof to follow taken in connection with the accompanying drawing in which:
Figure l is a longitudinal sectional view showing my improved stopper applied to a leaky hol low boiler tube.
Figure 2 is a side elevational view of the im-.
proved stopper.
Figure 3 is a cross sectional view taken on the plane of the line 3-3 of Figure 1.
Figure 4 is a cross sectional view taken on the plane of the line 4-4 of Figure 1.
The improved stopper comprises a tube or pipe of metal I, the external surface of which is smooth at its center as indicated at 2, the remainder of said surface being formed with screw threads. The threads to the right of said central portion as indicated at 3 are cut in one direction, for example, right hand threads, and the threads to the left as indicated at 4 are cut in the opposite direction, or left hand threads. On the right hand end of the tube is a frusto-conical metal sleeve member 5 formed with internal screw threads adapted to mesh with the right hand screw threads 3. A similar sleeve member 6 is mounted on the left hand end and has internal screw threads adapted to mesh with the left hand threads 4, of the tube. These sleeve members are positioned on the tube with their smaller ends facing each other.
Surrounding the sleeve members and tube is an elongated expansible packing sleeve 1 formed of rubber or other suitable elastic, expansible or compressible material. The sleeve 1 extends across the threaded sections of the tube and seats on the beveled outer surfaces of the sleeve members 5 and 6.
In using my improved stopper, the parts are assembled as shown in Figure 2 with the sleeve" as to afford a sliding fit with the interior of the hollow boiler tube to be repaired, and that various sized stoppers will be used for various sized boiler tubes. The assembled unit is driven into the cracked or leaky boiler tube 8 to be repaired until it is opposite the leak or crack 9 therein and until the leak is positioned between the movable sleeve members 5 and 6 as shown in Figure l. A wrench or other tool is now applied to the end of the tube I, each end of the tube being provided with opposed slots l0 in its edge to receive such a tool, and the tube is turned in one direction, for example, to the left. Rotation of the sleeve members 5 and 6 on the tube is prevented by the engagement of the expansible sleeve 1 with said sleeve members and with the inner surface of the boiler tube. Due to the right and left hand threads, the turning of the tube l in one direction will cause the sleeve members 5 and 6 to be drawn or moved toward each other thereby compressing and expanding the central portion of the sleeve 7 and forcing it outwardly against the inner surface of the boiler tube in which the stopper is located thereby filling the void in the rupture, leak or crack 9. This forms a seal between the imperforate or unbroken part of the boiler tube nd the stopper around the outer surface of the sleeve 1. Upon rotation of the tube in the opposite direction, the sleeve members 5 and 6 will be moved apart so as to permit the elastic sleeve 1 to contract so that the stopper can be easily inserted into and removed from the tube.
What I claim is:
1. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve member on each end of said tube and having internal screw threads adapted to mesh with the threads on the corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elastic sleeve surrounding said frusto-conical sleeve members and relatively. slidably engaging the tapered outer surfaces thereof whereby said elastic sleeve is expanded or contracted upon movement of said frusto-conical sleeve members toward or away from each other into leak-proof contact with the inner surface of a boiler tube and out of contact therewith, respectively, at least one end of said tube being slotted to receive a tool for turning same relative to the frusto-conical sleeve members.
2. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads at one end being right hand threads and the threads at the other end being left hand threads, a frusto-conical sleeve member on each threaded end of said tube and having internal screw threads adapted to mesh with the threads on the, corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elongated rubber sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby upon inward movement of said frusto-conical sleeve members toward each other said rubber sleeve is expanded into contact with the inner surface of a boiler tube enclosing same to seal a rupture therein, the engagement of said rubber sleeve with said inner surface of the boiler tubev and with the tapered surfaces of said frustoconical sleeve members preventing their rotation.
3. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve 5 smaller ends facing each other, and an expansible sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby said expansible sleeve is expanded upon movement of said frustoconical sleeve members toward each other, said tube having means to be engaged by a tool for rotating the sleeve.
SOLOMON BERG.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 705,059 Flynn July 22,, 1902 739,489 Clifford Sept. 22, 1903, 775,124 Christman Nov. 15, 1904; 857,582 Boyle June 25, 19.07 2 922,544 Turner et al May 25, 1909 932,766 Daniels Aug. 31, 1909 1,788,845 Reynolds Jan. 13, 1931 2,374,947 Nicholson May 1, 1945,-
FOREIGN PATENTS 0 Number Country Date 6,637 Great Britain Mar. 18, 19,13
4 I member on each end of said tube and having internal screw threads adapted to mesh with the threads on the corresponding end of the tube, said sleeve members being positioned with their
US775330A 1947-09-20 1947-09-20 Hollow repair device for leaky boiler tubes Expired - Lifetime US2517626A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US2756779A (en) * 1952-06-18 1956-07-31 Mueller Co By-pass assembly for service pipe and method of installation
US2784627A (en) * 1952-06-18 1957-03-12 Mueller Co By-pass assembly for service pipes and wrench for installation of the same
US2786489A (en) * 1954-09-16 1957-03-26 Mid Valley Pipeline Company Pipe line plugs
US2829675A (en) * 1955-01-27 1958-04-08 Mueller Co By-pass assembly for service pipe
US2870794A (en) * 1954-06-10 1959-01-27 Ellis B Thaxton Pipe plugs
US2926701A (en) * 1956-05-18 1960-03-01 Ernest G Campbell Liner pipes
DE1229794B (en) * 1964-04-15 1966-12-01 Georg Woerle Method and sealing body for closing pipe breaks in fluid pressure lines
US3495626A (en) * 1967-10-18 1970-02-17 American Mach & Foundry Pipeline plugging apparatus and methods
US3642032A (en) * 1970-04-16 1972-02-15 Fischer Cook Inc Internal pipe clamp applying apparatus and method
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
FR2538877A1 (en) * 1983-01-03 1984-07-06 Westinghouse Electric Corp CAP FOR TUBE
EP0233766A2 (en) * 1986-02-14 1987-08-26 Swagelok Quick-Connect Co. Seal assembly
US4713870A (en) * 1985-03-26 1987-12-22 Raychem Corporation Pipe repair sleeve apparatus and method of repairing a damaged pipe
WO1988004762A1 (en) * 1986-12-16 1988-06-30 Nordson Corporation Expandable insert for a heat exchanger
US4793382A (en) * 1984-04-04 1988-12-27 Raychem Corporation Assembly for repairing a damaged pipe
JPH03504443A (en) * 1987-12-29 1991-10-03 レーダー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング chairs, especially work or office chairs
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
WO2014170339A1 (en) * 2013-04-15 2014-10-23 Polytech Gmbh Closure stopper for through-holes in concrete objects
US20160228822A1 (en) * 2013-10-02 2016-08-11 Evoqua Water Technologies Llc A method and device for repairing a membrane filtration module
US10441920B2 (en) 2010-04-30 2019-10-15 Evoqua Water Technologies Llc Fluid flow distribution device
US11065569B2 (en) 2011-09-30 2021-07-20 Rohm And Haas Electronic Materials Singapore Pte. Ltd. Manifold arrangement
US11306851B2 (en) * 2016-05-25 2022-04-19 Uhrig Kanaltechnik Gmbh Sealing sleeve for pipe offsets

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705059A (en) * 1901-10-01 1902-07-22 Joseph Flynn Plumber's testing-plug.
US739489A (en) * 1902-03-06 1903-09-22 Charles Horace Gilby Siphon.
US775124A (en) * 1904-04-27 1904-11-15 John Henry Christman Tool for and process of repairing pipes.
US857582A (en) * 1907-01-23 1907-06-25 Monolithic Duct Company Apparatus for molding hollow objects from cement.
US922544A (en) * 1909-01-13 1909-05-25 Walter Turner Plumber's sanitary test-plug.
US932766A (en) * 1908-09-03 1909-08-31 Daniel Daniels Heaving-plug for wells.
GB191306637A (en) * 1913-03-18 1914-03-12 Frederick Leonard Ball An Improved Method of and Apparatus for Caulking Thin Metal Pipes.
US1788845A (en) * 1926-11-25 1931-01-13 Reynolds Donald Hugh Baillie Apparatus for testing pipe joints for leakage
US2374947A (en) * 1943-05-04 1945-05-01 Gene Le Roy High pressure test plug

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705059A (en) * 1901-10-01 1902-07-22 Joseph Flynn Plumber's testing-plug.
US739489A (en) * 1902-03-06 1903-09-22 Charles Horace Gilby Siphon.
US775124A (en) * 1904-04-27 1904-11-15 John Henry Christman Tool for and process of repairing pipes.
US857582A (en) * 1907-01-23 1907-06-25 Monolithic Duct Company Apparatus for molding hollow objects from cement.
US932766A (en) * 1908-09-03 1909-08-31 Daniel Daniels Heaving-plug for wells.
US922544A (en) * 1909-01-13 1909-05-25 Walter Turner Plumber's sanitary test-plug.
GB191306637A (en) * 1913-03-18 1914-03-12 Frederick Leonard Ball An Improved Method of and Apparatus for Caulking Thin Metal Pipes.
US1788845A (en) * 1926-11-25 1931-01-13 Reynolds Donald Hugh Baillie Apparatus for testing pipe joints for leakage
US2374947A (en) * 1943-05-04 1945-05-01 Gene Le Roy High pressure test plug

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US2756779A (en) * 1952-06-18 1956-07-31 Mueller Co By-pass assembly for service pipe and method of installation
US2784627A (en) * 1952-06-18 1957-03-12 Mueller Co By-pass assembly for service pipes and wrench for installation of the same
US2870794A (en) * 1954-06-10 1959-01-27 Ellis B Thaxton Pipe plugs
US2786489A (en) * 1954-09-16 1957-03-26 Mid Valley Pipeline Company Pipe line plugs
US2829675A (en) * 1955-01-27 1958-04-08 Mueller Co By-pass assembly for service pipe
US2926701A (en) * 1956-05-18 1960-03-01 Ernest G Campbell Liner pipes
DE1229794B (en) * 1964-04-15 1966-12-01 Georg Woerle Method and sealing body for closing pipe breaks in fluid pressure lines
US3495626A (en) * 1967-10-18 1970-02-17 American Mach & Foundry Pipeline plugging apparatus and methods
US3642032A (en) * 1970-04-16 1972-02-15 Fischer Cook Inc Internal pipe clamp applying apparatus and method
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
FR2538877A1 (en) * 1983-01-03 1984-07-06 Westinghouse Electric Corp CAP FOR TUBE
EP0113080A1 (en) * 1983-01-03 1984-07-11 Westinghouse Electric Corporation Tube plug
US4793382A (en) * 1984-04-04 1988-12-27 Raychem Corporation Assembly for repairing a damaged pipe
US4713870A (en) * 1985-03-26 1987-12-22 Raychem Corporation Pipe repair sleeve apparatus and method of repairing a damaged pipe
EP0233766A3 (en) * 1986-02-14 1988-02-10 Swagelok Company Coupling
EP0233766A2 (en) * 1986-02-14 1987-08-26 Swagelok Quick-Connect Co. Seal assembly
WO1988004762A1 (en) * 1986-12-16 1988-06-30 Nordson Corporation Expandable insert for a heat exchanger
AU592521B2 (en) * 1986-12-16 1990-01-11 Nordson Corporation Expandable insert for a heat exchanger
JPH03504443A (en) * 1987-12-29 1991-10-03 レーダー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング chairs, especially work or office chairs
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
US10441920B2 (en) 2010-04-30 2019-10-15 Evoqua Water Technologies Llc Fluid flow distribution device
US11065569B2 (en) 2011-09-30 2021-07-20 Rohm And Haas Electronic Materials Singapore Pte. Ltd. Manifold arrangement
WO2014170339A1 (en) * 2013-04-15 2014-10-23 Polytech Gmbh Closure stopper for through-holes in concrete objects
US20160228822A1 (en) * 2013-10-02 2016-08-11 Evoqua Water Technologies Llc A method and device for repairing a membrane filtration module
US10427102B2 (en) * 2013-10-02 2019-10-01 Evoqua Water Technologies Llc Method and device for repairing a membrane filtration module
US11173453B2 (en) 2013-10-02 2021-11-16 Rohm And Haas Electronic Materials Singapores Method and device for repairing a membrane filtration module
US11306851B2 (en) * 2016-05-25 2022-04-19 Uhrig Kanaltechnik Gmbh Sealing sleeve for pipe offsets

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