US192079A - Improvement in spirally-wound sheet-metal tubes - Google Patents

Improvement in spirally-wound sheet-metal tubes Download PDF

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US192079A
US192079A US192079DA US192079A US 192079 A US192079 A US 192079A US 192079D A US192079D A US 192079DA US 192079 A US192079 A US 192079A
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spirally
strip
metal
wound sheet
improvement
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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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/14Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

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  • My invention relates to that class of sheetmetal pipes which are formed by winding the strip spirally around a mandrel; and my invention consists in uniting the edges of the strip, and re-eni'orcing the seam or joint so formed by means of a separate and i Independent strip of n1etal clinched down on the outside of the same, in such a manner as to hold the edges of the strip firmly together, the liability of the separation of the edges and the loosening and opening of thejoint incident to this class of pipes, as heretofore constructed,
  • the above-described joint imparts stiffness and rigidity to the pipe, (which can conse 'quently be made of thinner metal than heretofore,) for the reason that the edges abut squarely against each other, and are held firmly and immovably together by the re-enforcing-strip 00, whereas this class of pipe, when provided with a joint described in Letters Patent of the United States No. 124,011, especially when made of zinc, is objectionable on account of the liability of the edges of the joint to slip byeach other, the effect of which is to loosen and open the joint, causing the pipe to leak.
  • a sheet-metal pipe constructed in accordance with my invention is particularly appli cable for stove-pipes, hot air and water conductors, speaking-tubes, &c., but will be found equally useful for many other purposes and this pipe may be made ornamental, if desired, by forming it of different kinds of metal of the same or of different widths, or of a strip of one ,metal with a re-enforcing strip of another metal.
  • a spirally-wound sheetmetal pipe in which the seam or joint is re-enforced by a strip of metal, a, clinched down thereon, substantially as and for-the purpose described.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

H. NOBLE.
SPIRALLY-WOUND SHEET-METAL TUBE.
Patented June 19,1877,
UNITED STATES- PATENT OFFICE.
HENRY NOBLE, or BOSTON, MASSACHUSETTS.
IMPROVEMENT IN SPlRALLV-WOUND SHEET-METAL TUBES.
Specification forming part of Letters Patent No. 192,079, dated June 19, 1877; application filed December 4, 1876,
To all whom it may concern:
Be it known that I, HENRY NOBLE, of Bos ton, in the county of Suffolk and State of Mas-- sachusetts, have invented certain Improvements in spirally-Wound Sheet-Metal Pipes or Tubes, ofwhich the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a perspective view of a spirally- Wound sheet-metal pipe constructed in accordance with my invention. Fig. 2 is a perspective view, representing the mannerin which the pipe is formed. Fig. 3 is a transverse section representing the seam or joint finished. Fig. 1 is a section (enlarged) representing the seam or joint previous to its being flattened down or finished. Fig. 5 represents the strip of sheet metal of the desired width from which myimproved pipeis formed. Fig. 6 represents the narrow strip of sheet metal employed in re-eniorcing the seam of the said pipe.
My invention relates to that class of sheetmetal pipes which are formed by winding the strip spirally around a mandrel; and my invention consists in uniting the edges of the strip, and re-eni'orcing the seam or joint so formed by means of a separate and i Independent strip of n1etal clinched down on the outside of the same, in such a manner as to hold the edges of the strip firmly together, the liability of the separation of the edges and the loosening and opening of thejoint incident to this class of pipes, as heretofore constructed,
being thereby avoided.
To enable others skilled in the art to understand and use my invention, 1 will proceed to describe the manner in which I have carried it out.
In the said drawings, A represents a flat strip of sheet metal, of the required width, and a a narrow strip of metal, both of which, as they are fed through a machine adapted for the purpose, are wound spirally around a mandrel or former, during which operation the edges of thest'rip' A are turned .up, and the edges of the strip a turned down, as seen in Fig.2, by suitable mechanism, after which the turned edges of the strip a, Fig. 6,
are directed against and caught over the turned edges of the strip A, simultaneously with their being made to abut against each other, the parts being then in the position seen in Fig. 4.
roll or other device, the inside of the joint be- 'ing at the same time smoothly finished, so as to offer no obstruction.
The above-described joint imparts stiffness and rigidity to the pipe, (which can conse 'quently be made of thinner metal than heretofore,) for the reason that the edges abut squarely against each other, and are held firmly and immovably together by the re-enforcing-strip 00, whereas this class of pipe, when provided with a joint described in Letters Patent of the United States No. 124,011, especially when made of zinc, is objectionable on account of the liability of the edges of the joint to slip byeach other, the effect of which is to loosen and open the joint, causing the pipe to leak. "A sheet-metal pipe constructed in accordance with my invention is particularly appli cable for stove-pipes, hot air and water conductors, speaking-tubes, &c., but will be found equally useful for many other purposes and this pipe may be made ornamental, if desired, by forming it of different kinds of metal of the same or of different widths, or of a strip of one ,metal with a re-enforcing strip of another metal.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. A spirally-wound sheetmetal pipe in which the seam or joint is re-enforced by a strip of metal, a, clinched down thereon, substantially as and for-the purpose described.
2. A spirally-Wound sheet-metal pipe, constructed with a joint formed by turning and abutting the edges of the metal, and uniting or looking them together by means of a re-eir forcing-strip, a, substantially as set forth.
Witness my hand this 1st day of December, A. D. 1876.
HENRY NOBLE.
In presence of- N. W. STEARNS, W. J. CAMBRIDGE.
US192079D Improvement in spirally-wound sheet-metal tubes Expired - Lifetime US192079A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452047A (en) * 1943-05-01 1948-10-26 Clyde M Hamblin Construction of flexible hose
US5980670A (en) * 1997-12-12 1999-11-09 Hall International, Llc Method of forming a metal pipe with cuff for forming pipe joint
US6085801A (en) * 1995-03-08 2000-07-11 Protol A.G. Helically wound lock-seam tube
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

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452047A (en) * 1943-05-01 1948-10-26 Clyde M Hamblin Construction of flexible hose
US6085801A (en) * 1995-03-08 2000-07-11 Protol A.G. Helically wound lock-seam tube
US6513553B2 (en) 1995-03-08 2003-02-04 Protol A.G. Helically wound lock-seam tube
US6561228B1 (en) 1995-03-08 2003-05-13 Protol A.G. Helically wound lock seam tube
US5980670A (en) * 1997-12-12 1999-11-09 Hall International, Llc Method of forming a metal pipe with cuff for forming pipe joint
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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