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US1179853A - Pole-joint and method of making same. - Google Patents

Pole-joint and method of making same. Download PDF

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Publication number
US1179853A
US1179853A US1914859168A US1179853A US 1179853 A US1179853 A US 1179853A US 1914859168 A US1914859168 A US 1914859168A US 1179853 A US1179853 A US 1179853A
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US
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Grant
Patent type
Prior art keywords
section
end
pole
telescoped
sections
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
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Inventor
John A Mcculloch
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National Tube Co
Original Assignee
National Tube Co
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Publication date
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B5/00Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/072Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49616Structural member making
    • Y10T29/49623Static structure, e.g., a building component
    • Y10T29/49631Columnar member
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49863Assembling or joining with prestressing of part
    • Y10T29/49865Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49925Inward deformation of aperture or hollow body wall
    • Y10T29/49927Hollow body is axially joined cup or tube
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49925Inward deformation of aperture or hollow body wall
    • Y10T29/49927Hollow body is axially joined cup or tube
    • Y10T29/49929Joined to rod
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/49Member deformed in situ
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/49Member deformed in situ
    • Y10T403/4974Member deformed in situ by piercing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/70Interfitted members

Description

JOHN A. McCULLOCI-I, 0F VERSAILLES, PENNSYLVANIA, ASSIGNOR T0 NATIONAL TUBE COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

POLE-JOINT AND METHOD OF MAKING SAME.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed August 29, 1914. Serial No. 859,168.

My invention relates to the manufacture of poles formed of wrought metal pipes or tubes, and more particularly relates to the .manufacture of such poles which are made in transversely divided sections with the end of one section telescoped within the end of another section and the encircling end of one section of the pole pipe swaged on the telescoped end of another section. Heretofore in making such poles it has been the practice to swage the encircling end of the sections tightly into frictional engagement with the cylindrical surface of the telescoped end ofthe adjoining section. Such poles have not been found entirely satisfactory as the joints sometimes are loose or become loosened after the poles have been com- .pleted to an extent sufficient to permit of telescoping or relative lengthwise movement of the sections, which changes the overall length of the poles and makes them unfit for the use for which they were intended.

One object of myinvention is to provide a tubular wrought metal pole, made in sections as heretofore'and having the end of one sectionsecured to the adjoining end of the next section in such manner as will remove any liability of the joints becoming loosened with distortion or displacement of the metal in the contacting surfaces at the joints and thereby overcome the possibility of one section of the pole telescoping farther on or in the adjoining section to which it is connected.

Another object of my invention is to provide a novel method of making tubular, wrought metal, sectional poles whereby the pipe sections are fastened together much more securely than by the methods heretofore used and without material increase in the cost of making the poles.

Still further objects of the invention will become apparent hereinafter as the invention is more fully disclosed in the specifica vtion and pointed out in the appended claims. Referring to the accompanying drawings, forming part of this specification, Flgure 1 is a longitudinal plan showing a sectional tubular pole constructed and arranged in accordance with this invention. Fig. 2 is a sectional plan showing one manner of formmg the joints between the sections of the pole in accordance with my invention. Fig. 3 IS a detail sectional plan showing the construction and arrangement of the grooves formed in the telescoped ends of the sections in forming poles with the joint of Fig. 2-. Fig. 4. is a sectional plan, similar to that shown in Fig. 2 showing a modified and the preferred manner of constructing the joints between the sections of the pole in accordance with this invention. Fig. 5 is a detail sectional plan, similar to that shown in Fig. 3, showing the preferred way of scoring or raising the surface of the telescoped ends of the pipe sections in forming joints like that illustrated in Fig. 4.

In the drawings referring now to Figs. 1, 2 and 3, a tubular pole is shown whichis formed of wrought metal pipe and which comprises the sections 2, 3 and 4. The top or upper section 2 is smaller and the bottom section 4 is larger in diameter than the intermediate section 3, so that one end of the section 2 extends within the adjacent end of the section 3, and the encircling end portion of the section 3 is swaged to a diameter smaller than the balance of this section so that its inner surface tightly engages the outer surfaces of the ridges 5 between the grooves 6 in the telescoped end of the top section 2. The inequalities in the rough surface on the. interior of the encircling end of the sections ordinarily is sufiicient, when the telescoped ends of the sections are grooved in the manner shown in Figs. 2 and 3 to securely hold one section in engagement with the adjacent section. In a similar manner. the one end of the section 4 is swaged to a smaller diameter so as to cause its inner surface to tightly grip the outer surface of the ridges 5 between the grooves 6 in the telescoped end of the section 3 of the pole.

In the construction shown in Figs. 4 and 5 the 'telescoped ends of the pipes are scored to form a series of grooves 6 with ridges 5 therebetween which are wedge shaped or pointed in cross section and in forming grooved surfaces like that shown in Fig; 4, and, in detail in Fig. 5, the metal is displaced instead of cutting away the metal in forming {the grooves between adjacent ridges, as in Figs. 2 and 3.

Before assembling the pole sections in making poles with joints like that illustrated in Figs. 2 and 3 in the manner described, one end of the section 2, (the end which telescopes within the swaged end of the section 3) and the one end of the section in the swaged end of an adjoining section.

In preparing the sections for making poles having joints like that shown in Figs. 4 and 5, the ends of the sections 2 or 3 to be telescoped are scored to displace the metal without cutting or nachining'the metal to form the grooves 6?. One way of doing this is to rotate the pipe and bring the peripheral edge of a rotating'wheel or disk into engagement with the surface to be scored, the disk cutting into and raising or displacing the metal .to form the ridges 5 k The so-scored or grooved end of each section of the pole is then inserted or telescoped within the end of a section to be swaged on The swaged end of the section of the pipe is-heated prior to the swaging operation and after the two sections are positioned in the desired relation, the swaging operation is performed in the same manner as1 heretofore in forming such sectional p0 eSq In swaging the end. of one section of the pole on the scored or grooved end of the telescoped section, the metal on the inner surface of the swaged end of the pipe will be displaced and will be forced into the scores or grooves 5 on the outer surface of-the telescoped section, so that after the completion of the swaging operation the possibility of endwise movement of one section relative to the other is materially lessened, if not entirely prevented.

shown in Figs. 2 and 3, the metal of the encircling ends of the sections will not be' forced into the grooves 6 to an appreciable-extent, but in such event the rough surface will be found suflicient to hold the sectionsin engagement; In joints formed as 7 shown in Figs. .4 and 5 the relatively sharp apices of the ridges 5 will be forced intothe contacting surfaces of the swaged or encircling pole section, in the manner illustrated.

Preferably but a portion of the telescoped section is cylindrical.

In some cases in forming joints like that.

end of each section is grooved or scored, so

that the telescoped endof the section contacting with the outer end of the swaged The grooves 5 and 5 may, however, when desired, be extended to the full length of the telescoped end of the pipe so as to be in engagement with the swaged end of the other section of the pipe for the full length of the telescoping portions of the sections.

The advantages of my invention will be apparent to those skilled in the art. By scoring or grooving the telescoped end of each section of the pole and swaging the engaging or encircling end of the adjacent section of the pole on the grooved or scored surface, the possibility of one section of the pole moving endwise relatively to the one to which it is attached is lessened, if 'not entirely prevented.

Modifications in the construction and arrangementof the parts in constructing the joints of the tubular sectional poles and in the means for grooving or scoring the sections may be made without departing from my invention as defined in the appended claims. I

I claim:

1. A hollow wrought metal pole, formed in sections and having the end of one section telescoped within the end of the adjoin-' ing section, with the encircling end of said adjoining section swaged into close contact with the telescoped end of said telescoping section, and with the engaging surfaces of said telescoped ends roughened to formregistering ridges and grooves whereby relative movement of the sections at the soformed .joint is prevented. j 2. The method of forming hollow sectional wrought metal poles which consists in forminga series of ridges and grooves on the end of one section of the pole and swaging the surface of the encircling end of the adjoining section into close contact with the ridges of the other section of the pole.

3. The method of forming hollow sectional wrought metal poles which consists in forming a series of encircling grooves on the telescoped end of one section of the pole and swaging the encircling end of the adjoining section into close contact with the grooved end of said section and forcing the metal of the swaged section into the grooves between the ridges on the end of the telescoped section of the pole.

In testimony whereof, I have hereunto set my hand.

JOHN A. MCCULLOOH, WVitnesses:

Jns. PVDAVIST' CHAs. STARR.

US1179853A 1914-08-29 1914-08-29 Pole-joint and method of making same. Expired - Lifetime US1179853A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530654A (en) * 1945-12-03 1950-11-21 Ellis Robert Flagpole
US2686353A (en) * 1950-06-06 1954-08-17 Acme Ind Inc Method of assembling tubes in spacer plates
US3125806A (en) * 1964-03-24 Manufacture of composite metal tubes
US3270480A (en) * 1965-04-07 1966-09-06 Beecker William Tapered sectional support pole
US3417456A (en) * 1966-09-30 1968-12-24 Army Usa Method for pulse forming
US3528596A (en) * 1966-09-30 1970-09-15 Us Army Apparatus for pulse forming
US3591918A (en) * 1967-04-19 1971-07-13 Euratom Method of producing a sealing tight joint between two tubes made of different materials, and joint produced by the method
US3668754A (en) * 1970-04-22 1972-06-13 Derek Walter Boast Methods of forming pipe joints
US3722076A (en) * 1971-09-20 1973-03-27 R Dent Method of swage joining a metallic tube to an insert
US4506423A (en) * 1980-12-24 1985-03-26 Hitachi, Ltd. Method of producing a fluid pressure reducing device
US4525098A (en) * 1981-12-15 1985-06-25 Werner Krude Assembly for connecting together torque-transmitting members
US4763922A (en) * 1984-07-31 1988-08-16 Nhk Spring Co., Ltd. Axle supporting rod for motor vehicle
US5984138A (en) * 1995-05-31 1999-11-16 Dana Corporation Tanks with flow drill bushings for receiving couplings
US20130119655A1 (en) * 2008-07-31 2013-05-16 Tommy L. Jamison Coupling and joint for fixedly and sealingly securing components to one another

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125806A (en) * 1964-03-24 Manufacture of composite metal tubes
US2530654A (en) * 1945-12-03 1950-11-21 Ellis Robert Flagpole
US2686353A (en) * 1950-06-06 1954-08-17 Acme Ind Inc Method of assembling tubes in spacer plates
US3270480A (en) * 1965-04-07 1966-09-06 Beecker William Tapered sectional support pole
US3417456A (en) * 1966-09-30 1968-12-24 Army Usa Method for pulse forming
US3528596A (en) * 1966-09-30 1970-09-15 Us Army Apparatus for pulse forming
US3591918A (en) * 1967-04-19 1971-07-13 Euratom Method of producing a sealing tight joint between two tubes made of different materials, and joint produced by the method
US3668754A (en) * 1970-04-22 1972-06-13 Derek Walter Boast Methods of forming pipe joints
US3722076A (en) * 1971-09-20 1973-03-27 R Dent Method of swage joining a metallic tube to an insert
US4506423A (en) * 1980-12-24 1985-03-26 Hitachi, Ltd. Method of producing a fluid pressure reducing device
US4525098A (en) * 1981-12-15 1985-06-25 Werner Krude Assembly for connecting together torque-transmitting members
US4763922A (en) * 1984-07-31 1988-08-16 Nhk Spring Co., Ltd. Axle supporting rod for motor vehicle
US5984138A (en) * 1995-05-31 1999-11-16 Dana Corporation Tanks with flow drill bushings for receiving couplings
US20130119655A1 (en) * 2008-07-31 2013-05-16 Tommy L. Jamison Coupling and joint for fixedly and sealingly securing components to one another
US8925978B2 (en) * 2008-07-31 2015-01-06 Mueller Industries, Inc. Coupling and joint for fixedly and sealingly securing components to one another

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