US1263340A - Spiral sheet-metal pipe. - Google Patents
Spiral sheet-metal pipe. Download PDFInfo
- Publication number
- US1263340A US1263340A US6863215A US6863215A US1263340A US 1263340 A US1263340 A US 1263340A US 6863215 A US6863215 A US 6863215A US 6863215 A US6863215 A US 6863215A US 1263340 A US1263340 A US 1263340A
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- US
- United States
- Prior art keywords
- pipe
- sheet
- flanges
- sheath
- flange
- 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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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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
Definitions
- Patented Apr. is, rare.
- This invention relates broadly to sheetmetal pipes, and more particularly to a spirally-wound pipe.
- the primary object of the invention is to provide a sheet-metal pipe which is so;
- a further object is to provide a sheetmetal pip-1 of the spiral type the meeting edges of which are firmly joined by a novel form of seam adapted to elfectually resist strains having a tendency to separate such edges and to permit leakage at the joints; and, further-,a seam adapted to reinforce the pipe to an extent rendering the latter capable of sustaining, without distortion, loads producing high external pressures, as when said pipe is used for culverts, sewers, and the like.
- Fig. 2 is an end View of the same
- Fig. 3 is a side elevation of a pipe having a modified form of seam
- Fig. 4 is an end View of the same
- Fig. 5 is a central longitudinal section on line 55, Fig. 2;
- Fig. 6 is a detail section of I the seam shown in Fig. 5, showing an inclosing strip or sheath applied thereto;
- Fig. 7 is a detail section of theseam in its initial form
- Fig. 8 is a perspective view of a broken section ofthe sheath, removed; and- Fig. 9 is an enlarged section on the line- 99, Fig. 3.
- FIG. 1 indicates the body of a pipe composed of a single strip of sheet-metal wound or coiled into spiral form, the lateral edges of the strip being interlocked by means of a seam of peculiar novel form.
- a seam of peculiar novel form one of the lateral edges of the strip or sheet is turned outward at substantially a right angle to the plane of the sheet, forming an upright flange 2; and the opposite edge of the sheet is bent to provide a substantially U-shaped flange 3, said edge being first turned outward at a right angle to the plane of the sheet toform an outstanding flange of a width substantially double that of the flange 2, after which a return bend is formed near the center line of said outstanding flange.
- the sheet is coiled into spiral form and the flange 2 of one coil is introduced in the open space between the members of the flange 3 of the adjacent coil, as is shown in Fig. 7.
- Said engaging flanges are then subjected to the-laterally directed pressure of a shaping tool or mechanism whereby a bead-like crimp 4 is formed in said interengaging flanges, as shown in Figs. 1, .2 and 3, such crimp being designed to firmly interlock said flanges against separation.
- I may employ a sheath 5 for incasing said flanges, said sheath consisting of a separate narrow strip of sheet-metal shaped to fit over and closely embrace said interengaging flanges 2 and. 3. Said sheath is initially of U-shape and is applied to the interengaging flanges prior to the operation of crimping the latter. Then said flanges and said sheath are crimped in a single operation into the form shown in Fig.6.
- the entire seam may, if desired, be turned over against the body of the pipe, as shown at 7 in Figs. 3, 4 and 9; however, when the pipe is to be subjected to external pressure it is preferred that the seam retain its outstandstrength and rigidity.
- the sheet or strip composing the body of the pipe is corrugated longitudinally, so that the pipe, when formed, has spirally disposed corrugations 8 formed therein, as shown in Figs. 1, 2 and 5.
- a pipe consisting of a single strip of sheet-metal wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and having its opposite edge turned outward and shaped to form a Ushaped flange, the said flanges of adjacent spiralsbeing disposed in interengaging relation and having a crimp formed therein whereby they are interlocked, and a sheet-metal sheath disposed in closel embracing relation to and interlocked with said interlocked flanges, said flanges and sheath serving to reinforce said pipe against collapse under external pressure.
- a pipe consisting of a single strip of sheet-metal wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and ha"- ing its opposite edge turned outward and shaped to form a U-shaped flange, the said flanges of adjacent spirals being disposed in interengaging relation, a substantially U-shaped sheet-metal sheath disposed in closely embracing relation to the interengaging flanges, said flanges and said sheath having a crimp formed therein for interlocking said parts in assembled relation, said interlocked flanges and sheath constituting an upright spirally disposed seam whereby the pipe is reinforced against collapse under external pressure.
- a pipe consisting of a single strip of sheet-metal Wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and having its opposite edge turned outward and shaped to form a U-shaped flange, the said flanges of adjacent spirals being disposed in interengaging relation, and a sheath disposed in closely embracing relation to said interengaging flanges, ,said interengaging flanges and sheath being interlocked by a bead-like crimp formed therein.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
T. SILK.
SPIRAL SHEET METAL PIPE.
APPLICATION FILED DEC.27. 1915.
Patented Apr. 16, 1918.
2 SHEETS-SHEET I.
INVEN ATTOPN EY k T. SILK. sPlR'AL SHEET METAL PIPE.
APPLICATION FILED DEC. 27. 1915- I 1, %353,3Q, Patented Apr. 16, 1918.
2 SHEETS-SHEET 2.
WW I ATTORNEY THOMAS SILK, OF MARTINS FERRY, OHIO.
SPIRAL SHEET-METAL PIPE.
Specification of Letters Patent.
Patented Apr. is, rare.
Application filed December 27, 1915. Serial No. 68,1632.
tain new and useful Improvements in Spiral Sheet-Metal Pipes, of which the following is a specification. r
This invention relates broadly to sheetmetal pipes, and more particularly to a spirally-wound pipe.
The primary object of the invention is to provide a sheet-metal pipe which is so;
formed as to be extremely strong and capable of ,withstanding relatively great strains both internal and external.
A further object is to provide a sheetmetal pip-1 of the spiral type the meeting edges of which are firmly joined by a novel form of seam adapted to elfectually resist strains having a tendency to separate such edges and to permit leakage at the joints; and, further-,a seam adapted to reinforce the pipe to an extent rendering the latter capable of sustaining, without distortion, loads producing high external pressures, as when said pipe is used for culverts, sewers, and the like.
With these and other objects in View, the invention resides in the features of construction which will hereinafter be fully described, reference being had to the accom-' panying drawings, forming a part of this specification, inwhich- Figure 1 is a side elevation of a pipe embodying my invention;
Fig. 2 is an end View of the same;
Fig. 3 is a side elevation of a pipe having a modified form of seam;
Fig. 4 is an end View of the same;
Fig. 5 is a central longitudinal section on line 55, Fig. 2;
Fig. 6 is a detail section of I the seam shown in Fig. 5, showing an inclosing strip or sheath applied thereto;
Fig. 7 is a detail section of theseam in its initial form;
Fig. 8 is a perspective view of a broken section ofthe sheath, removed; and- Fig. 9 is an enlarged section on the line- 99, Fig. 3.
Referring to said drawings, in which like designating characters distinguish like parts throughout the. several views 1 indicates the body of a pipe composed of a single strip of sheet-metal wound or coiled into spiral form, the lateral edges of the strip being interlocked by means of a seam of peculiar novel form. In forming said seam one of the lateral edges of the strip or sheet is turned outward at substantially a right angle to the plane of the sheet, forming an upright flange 2; and the opposite edge of the sheet is bent to provide a substantially U-shaped flange 3, said edge being first turned outward at a right angle to the plane of the sheet toform an outstanding flange of a width substantially double that of the flange 2, after which a return bend is formed near the center line of said outstanding flange.
In forming the pipe, the sheet is coiled into spiral form and the flange 2 of one coil is introduced in the open space between the members of the flange 3 of the adjacent coil, as is shown in Fig. 7. Said engaging flanges are then subjected to the-laterally directed pressure of a shaping tool or mechanism whereby a bead-like crimp 4 is formed in said interengaging flanges, as shown in Figs. 1, .2 and 3, such crimp being designed to firmly interlock said flanges against separation.
As a further reinforcement for the flanges, interlocked as aforesaid, I may employ a sheath 5 for incasing said flanges, said sheath consisting of a separate narrow strip of sheet-metal shaped to fit over and closely embrace said interengaging flanges 2 and. 3. Said sheath is initially of U-shape and is applied to the interengaging flanges prior to the operation of crimping the latter. Then said flanges and said sheath are crimped in a single operation into the form shown in Fig.6.
To provide for the introduction of one end of a pipe section within the end of an adjacent section, that portion of the outstanding seam, formed as hereinbefore described, located adjacent to the ends ofthe pipe is flattened against the pipe, as shown at 6 in Figs. 1 and 2. -As is obvious, the entire seam may, if desired, be turned over against the body of the pipe, as shown at 7 in Figs. 3, 4 and 9; however, when the pipe is to be subjected to external pressure it is preferred that the seam retain its outstandstrength and rigidity. For further increasing the rigidity of the pipe, the sheet or strip composing the body of the pipe is corrugated longitudinally, so that the pipe, when formed, has spirally disposed corrugations 8 formed therein, as shown in Figs. 1, 2 and 5. I
What is claimed is 1. A pipe consisting of a single strip of sheet-metal wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and having its opposite edge turned outward and shaped to form a Ushaped flange, the said flanges of adjacent spiralsbeing disposed in interengaging relation and having a crimp formed therein whereby they are interlocked, and a sheet-metal sheath disposed in closel embracing relation to and interlocked with said interlocked flanges, said flanges and sheath serving to reinforce said pipe against collapse under external pressure.
2. A pipe consisting of a single strip of sheet-metal wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and ha"- ing its opposite edge turned outward and shaped to form a U-shaped flange, the said flanges of adjacent spirals being disposed in interengaging relation, a substantially U-shaped sheet-metal sheath disposed in closely embracing relation to the interengaging flanges, said flanges and said sheath having a crimp formed therein for interlocking said parts in assembled relation, said interlocked flanges and sheath constituting an upright spirally disposed seam whereby the pipe is reinforced against collapse under external pressure.
3. A pipe consisting of a single strip of sheet-metal Wound into spiral form, said strip having one edge turned outward to form a flange which stands at substantially a right angle to the plane thereof and having its opposite edge turned outward and shaped to form a U-shaped flange, the said flanges of adjacent spirals being disposed in interengaging relation, and a sheath disposed in closely embracing relation to said interengaging flanges, ,said interengaging flanges and sheath being interlocked by a bead-like crimp formed therein.
In testimony whereof, I affix my signature in presence of two subscribing witnesses.
W. F. KEEPER, H. E. DUNLAP.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6863215A US1263340A (en) | 1915-12-27 | 1915-12-27 | Spiral sheet-metal pipe. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6863215A US1263340A (en) | 1915-12-27 | 1915-12-27 | Spiral sheet-metal pipe. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1263340A true US1263340A (en) | 1918-04-16 |
Family
ID=3331007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US6863215A Expired - Lifetime US1263340A (en) | 1915-12-27 | 1915-12-27 | Spiral sheet-metal pipe. |
Country Status (1)
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US (1) | US1263340A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3117821A (en) * | 1962-02-06 | 1964-01-14 | H Ind Inc As | Apparatus for conveying powdered materials |
US3224814A (en) * | 1962-12-03 | 1965-12-21 | Sprout Waldron & Co Inc | Conduit for pneumatic conveying systems |
US3240042A (en) * | 1962-06-11 | 1966-03-15 | Calumet & Hecla | Fabricated tubing and the method and apparatus for producing the same |
US4650369A (en) * | 1985-11-27 | 1987-03-17 | Kaiser Aluminum & Chemical Corporation | Culvert structure |
US4838317A (en) * | 1980-10-14 | 1989-06-13 | Andre James R | Hydraulically efficient ribbed pipe |
US4852616A (en) * | 1986-01-10 | 1989-08-01 | Mid-State Drainage Products, Inc. | Corrugated pipe |
US4964440A (en) * | 1980-10-14 | 1990-10-23 | Andre James R | Ribbed pipe |
US5454402A (en) * | 1988-10-21 | 1995-10-03 | W. E. Hall Company | Hydraulically efficient ribbed pipe having openings |
US5980670A (en) * | 1997-12-12 | 1999-11-09 | Hall International, Llc | Method of forming a metal pipe with cuff for forming pipe joint |
US20060151045A1 (en) * | 1999-05-17 | 2006-07-13 | Johnston Scott E | Horizontally produced large diameter spirally formed pipe |
US20080179881A1 (en) * | 2007-01-29 | 2008-07-31 | Deflecto Corporation | Semi-rigid, adjustable duct connector |
US20080273927A1 (en) * | 2007-05-04 | 2008-11-06 | W.E. Hall Company, Inc. | Security barrier |
US8496408B1 (en) | 2010-06-04 | 2013-07-30 | Spring Lock Liners, Llc | Spring lock culvert pipe liner |
US8555932B2 (en) | 2011-12-14 | 2013-10-15 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8573260B2 (en) | 2010-08-03 | 2013-11-05 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8991439B2 (en) | 2011-12-14 | 2015-03-31 | W.E. Hall Company, Inc. | Corrugated metal pipe |
-
1915
- 1915-12-27 US US6863215A patent/US1263340A/en not_active Expired - Lifetime
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3117821A (en) * | 1962-02-06 | 1964-01-14 | H Ind Inc As | Apparatus for conveying powdered materials |
US3240042A (en) * | 1962-06-11 | 1966-03-15 | Calumet & Hecla | Fabricated tubing and the method and apparatus for producing the same |
US3224814A (en) * | 1962-12-03 | 1965-12-21 | Sprout Waldron & Co Inc | Conduit for pneumatic conveying systems |
US4838317A (en) * | 1980-10-14 | 1989-06-13 | Andre James R | Hydraulically efficient ribbed pipe |
US4964440A (en) * | 1980-10-14 | 1990-10-23 | Andre James R | Ribbed pipe |
US4650369A (en) * | 1985-11-27 | 1987-03-17 | Kaiser Aluminum & Chemical Corporation | Culvert structure |
US4852616A (en) * | 1986-01-10 | 1989-08-01 | Mid-State Drainage Products, Inc. | Corrugated pipe |
US5454402A (en) * | 1988-10-21 | 1995-10-03 | W. E. Hall Company | Hydraulically efficient ribbed pipe having openings |
US5980670A (en) * | 1997-12-12 | 1999-11-09 | Hall International, Llc | Method of forming a metal pipe with cuff for forming pipe joint |
US20060151045A1 (en) * | 1999-05-17 | 2006-07-13 | Johnston Scott E | Horizontally produced large diameter spirally formed pipe |
US20080179881A1 (en) * | 2007-01-29 | 2008-07-31 | Deflecto Corporation | Semi-rigid, adjustable duct connector |
US20080273927A1 (en) * | 2007-05-04 | 2008-11-06 | W.E. Hall Company, Inc. | Security barrier |
US8496408B1 (en) | 2010-06-04 | 2013-07-30 | Spring Lock Liners, Llc | Spring lock culvert pipe liner |
US8573260B2 (en) | 2010-08-03 | 2013-11-05 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8985160B2 (en) | 2010-08-03 | 2015-03-24 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8555932B2 (en) | 2011-12-14 | 2013-10-15 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US20140007972A1 (en) * | 2011-12-14 | 2014-01-09 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8839823B2 (en) * | 2011-12-14 | 2014-09-23 | W.E. Hall Company, Inc. | Corrugated metal pipe |
US8991439B2 (en) | 2011-12-14 | 2015-03-31 | W.E. Hall Company, Inc. | Corrugated metal pipe |
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