US3353846A - Bellows restraining device - Google Patents

Bellows restraining device Download PDF

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Publication number
US3353846A
US3353846A US497012A US49701265A US3353846A US 3353846 A US3353846 A US 3353846A US 497012 A US497012 A US 497012A US 49701265 A US49701265 A US 49701265A US 3353846 A US3353846 A US 3353846A
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US
United States
Prior art keywords
ball
assemblies
assembly
strut
slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US497012A
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English (en)
Inventor
John F Peyton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INDIAN BAR COMPANY A CORP OF DEL
Original Assignee
Federal Mogul LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Federal Mogul LLC filed Critical Federal Mogul LLC
Priority to US497012A priority Critical patent/US3353846A/en
Priority to GB54726/65A priority patent/GB1078085A/en
Priority to SE17045/65A priority patent/SE315775B/xx
Priority to NL666601025A priority patent/NL148990B/xx
Priority to DE1525615A priority patent/DE1525615C3/de
Application granted granted Critical
Publication of US3353846A publication Critical patent/US3353846A/en
Assigned to INDIAN BAR COMPANY, THE, A CORP. OF DEL. reassignment INDIAN BAR COMPANY, THE, A CORP. OF DEL. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FEDERAL-MOGUL CORPORATION
Assigned to BANKERS TRUST COMPANY reassignment BANKERS TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INDIAN BAR COMPANYM, THE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/047—Metallic bellows
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/026—Universal and axially displaceable joints
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0849—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid being turned through an angle when passing from one joint element to another
    • F16L27/0857—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid being turned through an angle when passing from one joint element to another with hinge and bellows sealing
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement

Definitions

  • ABSTRACT F THE DISCLOSURE A device for use in internally restraining a conduit bellows that comprises an interlaced pair of swivelly engaged fiat plate struts of a geometry permitting disengagement of the swivel means, and a process of fabricating same.
  • the present invention relates to bellows units for conduits and, particularly, to an internal restraining and reinforcing device for bellows units to accommodate expansion, contraction, bending and twisting in tubular conduits.
  • the present invention is an improvement over the restraining device of the bellows unit disclosed in my prior Patent No. 3,070,387 and provides an internal structure that is made up of an assembly of fewer parts of less weight, and thus further enhances the use of the device in airborne applications.
  • the present invention further minimizes the cross-sectional area of the restraining means so as to further minimize pressure drops in the fluid passing through the conduit in which the bellows unit is disposed.
  • the present unit can be fabricated with fewer steps in the manufacturing process and by a process that eliminates certain welding steps after heat treatment inherent in the manufacture of the prior device so that the completed product more nearly conforms -to the desired hardness and toughness characteristics induced by the heat-treating step.
  • FIGURE 1 is an elevational view, partly in section, of an internally reinforced bellows unit incorporating the improved reinforcement means of this invention
  • FIGURE 2 is a perspective view of the presently preferred embodiment of the reinforcing means of FIG- URE l;
  • FIGURE 3 is a perspective view of the same parts as are shown in FIGURE 2, but with the parts differently oriented to illustrate a step in the manufacturing process;
  • FIGURE 4 is a fragmentary plan view of an alternative embodiment of the invention.
  • FIGURE 5 is a perspective view of the reinforcing means of FIGURE 4, with the parts oriented out of operational alignment to illustrate a step in the manufacturing process.
  • the preferred embodiment of the invention comprises a pair of interlaced strut assemblies and 10 that are identical to one another but differently numbered for convenience of identificationoin. Both of these are swivelly engageable on a ball 11 contained between confronting seat portions formed in the strut assemblies.
  • the interlaced strut assemblies 10, 10 and ball 11 comprise the reinforcing means for a completed bellows unit, such as is shown in FIGURE 1.
  • the completed unit includes a pair of short tubes 12 and 13 that are interconnected by the interlaced strut assemblies 10, 10 internally, and that are externally interconnected by a short length of metallic bellows 14.
  • each strut assembly 10 and 10 is made up of a strut member 16 and a nose piece 17.
  • the strut 16 has a base edge 18 of approximately the same length as the internal diameter of the tube 12 or 13 within which the restraining device is to be mounted, preferably such that opposite outer edges 19 of the strut 16 will be received in a close t for welding against diametrically opposite portions of the tube.
  • a pair of angularly related edges 20 of the strut 16 extend symmetrically from the outer edges 19 toward an apex of the strut, to merge into short diametrically disposed edges 21.
  • Each strut 16 is formed with a slot 22 disposed along the axis of symmetry of the piece and opening into the apex of the generally triangular portion of the piece.
  • This slot has a relatively wide rear or closed end at a base edge 23, whose opposite ends merge into opposite sides 24 of the slot that symmetrically converge forwardly toward the apex of the pieoe.
  • Each of the nose pieces 17 is of frusto-conical configuration, of a taper corresponding to the convergence or angle included between the opposite sides 24 of the slot 22, and is secured by rod welds 25 within the slot 22 to close the forward end of the slot, the nose of the nose piece 17 being disposed flush with the edges 21 at the apex of the strut 16.
  • Each of the nose pieces 17, at its base is formed with a concave ball seat 26, in which seats the ball 11 is received in the completed assembly of the restraining means.
  • one of the strut assemblies 10 is afiixed in one of the tubes 12 by welds 30 along the outer edges 19 of the strut 16, while the other strut assembly 10 is axed in the same manner Within the other tube 13, but approximately at right angles to the first strut ⁇ assembly lil.
  • the conduit in which the bellows unit is mounted is under tension, the parts assume the relative positions shown in FIGURE l, in
  • both nose pieces 17 are swivelly seated on the ball 11, leaving a small clearance space 31 between the -apex of each nose piece 17 and the adjacent base edge 23 of the opposite or other strut assembly.
  • the nose pieces 17 will separate slightly Within the limits allowed by abutment of the apex of each nose piece 17 on the confronting base edge 23 of the other strut assembly.
  • the nose pieces 17 cannot separate suiiciently to allow escape of the ball 11.
  • the tubes 12 and 13 can -be displaced angularly within the limits imposed Iby contact of a nose piece 17 with an edge 24 of the slot 22 of the other nose piece assembly.
  • the ball and socket means can be disengaged suiciently to remove the ball 11 after the interlaced assembly has been heat treated, in order to replace the old ball with a new ball 11. Further, this should be accomplished without per-forming any additional welding to ⁇ assemfble the interlaced struts, which would produce local discontinuities in the desired toughness and hardness 3 characteristics that had already been introduced by the heat treatment.
  • the configuration of parts employed meets both the operating conditions .and the assembly conditions of the device.
  • the configuration of the parts permits a sequence of assembly whereby no welding operations are required ,after heat treatment and, further, permits a ball 11 to be removed from or placed into the assembly' at will.
  • Ths sequence of assembly is as follows:
  • the nose piece 17 of the strut assembly is first Welded into place on its strut 16. Then, the remaining strut member 16 for the assembly 10 can be interlaced with the first strut assembly 10 by disposing the remaining strut substantially ⁇ at right angles to the strut assembly 10 so that the thickness of the strut member 16 of the strut assembly 10 can be received in the slot 22 of the remaining strut member. Then, when the apex portion of the remaining strut 16 is disposed in the wider end of the slot 22 of the other strut assembly, the remaining strut 16 can be turned about an axis normal to its plane and moved bodily to displace its apex from the plane of the other strut assembly 10.
  • a temporary ball 11 is disposed in one of the seats 26, after which the two strut assemblies are manipulated to bring the two nose pieces 17 into alignment.
  • the narrowness of the apex of the nose pieces 17 relative to the width of the slot 22 at their blind ends provides sufficient' clearance at corners 23a of the slot 22 to allow the nose piece y17 to be swung into .and out of the plane of the opposite strut assembly.
  • the interlaced strut assemblies 10 ⁇ and 10 and dummy ball 11 are then heat-treated, the dummy ball serving to keep the seats 26 ⁇ clean.
  • FIGURE 2 three mutually perpendicular and intersecting axes X, Y .and Z are shown, about which the parts can swivel on the ball 11, to further illustrate the manner in which the parts can be moved, relative to one another, to remove and replace the ball 11, notwithstanding the positive limits to the swivelling action about al1 axis which the parts provide.
  • the assembly 10 can be moved bodily or translated to move its nose piece away from the ball seat of the other nose piece and so arrive ⁇ at the position illustreated in FIGURE 3.
  • FIGURES 4 and 5 show an alternative embodiment of the invention.
  • the restraining and reinforcing device comprises one of the previously described strut assemblies 10, and another strut assembly 10a.
  • the assembly 10a instead incorporating a nose piece 17a which has an integral hemispherical portion 34 that seats on the ball seat 26 of the strut assembly 10.
  • the alternative embodiment of the invention is identical to that previously described.
  • the alternative embodiment of the invention is assembled in substantially the same manner as the preferred embodiment, but can be made without the use of any counterpart of the dummy ball used in the heat-treatment of the preferred embodiment.
  • the strut assembly 10a is first put together by welding the nose piece 17a into the slot 22 at the apex of the strut member 16.
  • the strut 16 of the strut assembly 10 can then be interlaced with the completed assembly 16a and the apex portion thereof displaced from the plane of the assembly 16a in the manner shown in FIGURE 5.
  • the then empty open end of the slot 22 is then clear for welding the nose piece 17 to the strut member 16 of the assembly It) with welds 25.
  • the two assemblies can then be.
  • a means for disengaging said ball and socket means comprising:
  • each of said plates having a pair of angularly related edges converging towards a nose piece and symmetrically disposed about an axis on opposite sides of a substantially triangular slot formed in said plate andV having symmetrically disposed about said axis,
  • confronting surfaces including each of said nose pieces and edges of said slots of said plates, having first portions to positively limit separating movement of said nose pieces within two perpendicular planes intersecting the center of said ball and socket means and adapted to limit such separatin-g movement sufficiently to maintain said ball and socket means in self-centering operative association for reseating upon tensioning of said assemblies; second portions of said confronting surfaces positively limiting pivotal movement of each of said assemblies about a pair of perpendicular axes intersecting the center of said ball and socket means and lying in said perpendicular planes;
  • each of said assemblies being pivotal about both said axes to move a nose piece of one of said assemblies into a corner of the slot of the other of said assemblies, one of the angularly related edges of the plate of said one assembly then providing clearance with the corner of said slot of the other assembly to move said first portions out of opposing registration to permit further separating movement of said nose pieces sumciently to displace said ball and socket means out of said self-centering operative association and to allow access to substantially all surfaces of said ball and socket means.
  • said ball and socket means comprises a separate ball and a pair of concave ball seats, said ball seats being formed in confronting ends .of said nos@ pieces..
  • a device as set forth in claim 1 in which said ball and socket means comprises confronting end portions of said pair of nose pieces, one of said end portions bein-g formed with a concave ball seat and the other of said end portions being formed with a hemispherical projection.
  • a bellows restraining device with a disengageable swivel connection comprising:
  • each of said strut assemblies comprising a flat plate having a pair of angularly related edges defining a generally triangularly shaped portion of said plate, said edges being symmetrically disposed on opposite sides of a slot formed in said plate, said slot opening forwardly at one end into an apex of said triangular portion, said slot having a base edge deinin-g a closed end of said slot and an opposite pair of side edges converging forwardly from corners at said base edge to said one end of said slot, said open end of said slot being at Ileast large enough to admit the thickness of one of said plates into said slot, each of said strut assemblies including a rigidly mounted nose piece of truncated frusto-conical configuration of a taper to matingly occupy the forward end of said slot with the axis of said nose piece on the axis of symmetry of said plate and with a larger base end of said nose piece facing rearwardly of said slot, said pair of
  • each of said nose pieces at its base end being formed with a concave ball seat.
  • each of a pair of flat plate members with a pair of angularly related edges defining a generally triangular portion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Joints Allowing Movement (AREA)
  • Pivots And Pivotal Connections (AREA)
US497012A 1965-10-18 1965-10-18 Bellows restraining device Expired - Lifetime US3353846A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US497012A US3353846A (en) 1965-10-18 1965-10-18 Bellows restraining device
GB54726/65A GB1078085A (en) 1965-10-18 1965-12-23 Bellows restraining device for conduits
SE17045/65A SE315775B (pl) 1965-10-18 1965-12-31
NL666601025A NL148990B (nl) 1965-10-18 1966-01-27 Flexibele pijpverbinding, alsmede werkwijze voor het samenstellen van het kogelscharnier daarvan.
DE1525615A DE1525615C3 (de) 1965-10-18 1966-04-22 Haltevorrichtung für eine Manschettenanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497012A US3353846A (en) 1965-10-18 1965-10-18 Bellows restraining device

Publications (1)

Publication Number Publication Date
US3353846A true US3353846A (en) 1967-11-21

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ID=23975104

Family Applications (1)

Application Number Title Priority Date Filing Date
US497012A Expired - Lifetime US3353846A (en) 1965-10-18 1965-10-18 Bellows restraining device

Country Status (5)

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US (1) US3353846A (pl)
DE (1) DE1525615C3 (pl)
GB (1) GB1078085A (pl)
NL (1) NL148990B (pl)
SE (1) SE315775B (pl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950016A (en) * 1974-11-07 1976-04-13 Exxon Research And Engineering Company Flexible fluid-conducting assemblies
US4543548A (en) * 1984-04-02 1985-09-24 Andrew Corporation Coaxial transmission line having an expandable and contractible bellows
WO1992007212A1 (en) * 1990-10-10 1992-04-30 Stainless Steel Products, Inc. Duct joint link assembly
RU2555603C1 (ru) * 2014-03-18 2015-07-10 Открытое акционерное общество "Конструкторское бюро химавтоматики" Компенсатор угловых перемещений трубопроводов
US20200041050A1 (en) * 2018-08-01 2020-02-06 The Boeing Company Internal spoke gimbal joint
WO2022043640A1 (fr) * 2020-08-28 2022-03-03 Arianegroup Sas Raccord de conduite de fluide pour moteur-fusee

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB564963A (en) * 1943-07-31 1944-10-20 Peter Warborn Thornhill Improvements in or relating to universal joints
US3070387A (en) * 1959-11-02 1962-12-25 John F Peyton Bellows restraining device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB564963A (en) * 1943-07-31 1944-10-20 Peter Warborn Thornhill Improvements in or relating to universal joints
US3070387A (en) * 1959-11-02 1962-12-25 John F Peyton Bellows restraining device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950016A (en) * 1974-11-07 1976-04-13 Exxon Research And Engineering Company Flexible fluid-conducting assemblies
US4543548A (en) * 1984-04-02 1985-09-24 Andrew Corporation Coaxial transmission line having an expandable and contractible bellows
WO1992007212A1 (en) * 1990-10-10 1992-04-30 Stainless Steel Products, Inc. Duct joint link assembly
US5112088A (en) * 1990-10-10 1992-05-12 Stainless Steel Products, Inc. Duct joint link assembly
RU2555603C1 (ru) * 2014-03-18 2015-07-10 Открытое акционерное общество "Конструкторское бюро химавтоматики" Компенсатор угловых перемещений трубопроводов
US20200041050A1 (en) * 2018-08-01 2020-02-06 The Boeing Company Internal spoke gimbal joint
US11112040B2 (en) * 2018-08-01 2021-09-07 The Boeing Company Internal spoke gimbal joint
WO2022043640A1 (fr) * 2020-08-28 2022-03-03 Arianegroup Sas Raccord de conduite de fluide pour moteur-fusee
FR3113712A1 (fr) * 2020-08-28 2022-03-04 Arianegroup Sas Raccord de conduite de fluide pour moteur-fusée

Also Published As

Publication number Publication date
DE1525615B2 (de) 1974-12-19
SE315775B (pl) 1969-10-06
NL148990B (nl) 1976-03-15
DE1525615C3 (de) 1975-08-07
DE1525615A1 (de) 1969-07-31
NL6601025A (pl) 1967-04-19
GB1078085A (en) 1967-08-02

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AS Assignment

Owner name: INDIAN BAR COMPANY, THE, 4411 KATELLA AVE. ,LOS AL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FEDERAL-MOGUL CORPORATION;REEL/FRAME:004133/0623

Effective date: 19830509

Owner name: INDIAN BAR COMPANY, THE, A CORP. OF DEL., CALIFORN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FEDERAL-MOGUL CORPORATION;REEL/FRAME:004133/0623

Effective date: 19830509

AS Assignment

Owner name: BANKERS TRUST COMPANY

Free format text: SECURITY INTEREST;ASSIGNOR:INDIAN BAR COMPANYM, THE;REEL/FRAME:004133/0135

Effective date: 19830511