US189267A - Improvement in sheet-metal elbows - Google Patents

Improvement in sheet-metal elbows Download PDF

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Publication number
US189267A
US189267A US189267DA US189267A US 189267 A US189267 A US 189267A US 189267D A US189267D A US 189267DA US 189267 A US189267 A US 189267A
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Prior art keywords
sheet
metal
strip
improvement
elbows
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Expired - Lifetime
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/124Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/124Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
    • B21C37/125Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes curved section, e.g. elbow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/28Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/286Making tube fittings for connecting pipes, e.g. U-pieces starting from sheet material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

v 1 ZSheetsPSheetl.
N. I. ROTHAN.
SHEET-METALIELBOWS. No.189,267. Patented April 3, 1877.
ELFETERS, PHOTO-UTHDGRAPHER, WASHINGTON, D C.
2 Sheets-Sheet 2. N. I. ROTHAN. SHEET-METAL ELBOWS. N ,189,Z67 'Patented April 3,1877.
Fig: a.
WITNESSES I INVEyR H.PE|'ERS. PQOTO-LITHOGRAPHER, WASHINGTON, D. Cv
Um'rnn STATES PATENT OFFICE...
NICOLAS I. ROTHAN, OF CINCINNATI, OHIO.
IMPROVEMENT IAN SHEET-METAL ELBOWS.
Specification forming part of Letters Patent No. 189,267, dated April 3, 1877 application filed May 26, 1876.
To all whom it may concern:
Be it known that I, NICOLAS I. ROTHAN, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in the Construction of Sheet Metal Elbows, Goose-Necks, and other Curved Pipes, of which the following is a specification:
My invention consists in forming a curved pipe from a continuous strip of metal, spirally wound, as hereinafter described.
My invention further 'consists in a blank constructed of a strip of sheet metal of varying widths, adapted to form an elbow or other curved pipe, in the manner hereinafter set forth.
The edges of the metal strip may be constructed with grooves, or the edges may be connected together by single or double seams.
In the accompanying drawing, Figure 1 represents a side view of an elbow constructed from a single strip of metal. Fig. 2 represents a front view of the same. Fig. 3 represents a strip of metal adapted to form an elbow. Fig. 4 represents a transverse section of said strip on the line 4 4., Fig. 3. Fig. 5 represents a side view of a goose-neck or other doublycurved pipe, to which the invention is applicable. Fig. 6 represents a'strip of metal adapted to form part of a goose-neck.
In carrying out my invention, I cut a long strip of tin, iron, copper, or other sheet metal of varying width, or scalloped, in suitable lengths, according to the diameter required for the pipe, and groove it at its edges, as
one to ten inches or more.
I thus form by my improvement an elbow or a long curved pipe out of a single piece of sheet metal.
It will be manifest that the edges, instead of being grooved, can be connected by a single or double seam.
The pipe is formed or wound up by a swagemachine between rollers.
Having thus described my invention, the following is what I claim as new and desire to secure by Letters Patent:
1. The process of forming a sheet-metal curved pipe from a strip of metal spirally wound and grooved or seamed, substantially as herein described.
2. A curved pipe constructed from a strip of sheet metal spirally wound and grooved or seemed, as herein described.
3. A blank constructed of a strip of sheet metal of varying widths, adapted to form an elbow or other curved pipe, in the manner set forth.
- NICOLAS I. ROTHAN.
Witnesses:
JOHN DEWALD, CHAS. PHARES.
US189267D Improvement in sheet-metal elbows Expired - Lifetime US189267A (en)

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US189267A true US189267A (en) 1877-04-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704885A (en) * 1985-03-08 1987-11-10 Ariyoshi Nakamura Apparatus for making connecting pipes for connecting ducts
US20080216911A1 (en) * 2007-03-09 2008-09-11 Jinwoong Technology Integrated spiral duct
CN108061214A (en) * 2018-01-08 2018-05-22 张欧 A kind of spiral winded type sheet metal elbow

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704885A (en) * 1985-03-08 1987-11-10 Ariyoshi Nakamura Apparatus for making connecting pipes for connecting ducts
US20080216911A1 (en) * 2007-03-09 2008-09-11 Jinwoong Technology Integrated spiral duct
CN108061214A (en) * 2018-01-08 2018-05-22 张欧 A kind of spiral winded type sheet metal elbow

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