US962462A - Process of removing scale from pipe. - Google Patents
Process of removing scale from pipe. Download PDFInfo
- Publication number
- US962462A US962462A US45534708A US1908455347A US962462A US 962462 A US962462 A US 962462A US 45534708 A US45534708 A US 45534708A US 1908455347 A US1908455347 A US 1908455347A US 962462 A US962462 A US 962462A
- Authority
- US
- United States
- Prior art keywords
- pipe
- twisting
- removing scale
- scale
- metal
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/45—Scale remover or preventor
- Y10T29/4506—Scale remover or preventor for hollow workpiece
- Y10T29/4511—Interior surface
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/47—Burnishing
Definitions
- PETERSEN 1 %TAE% AT HEELUEA.
- CHICAGO ILLINoIs, ASSIGNOR ro J. H. W. PETERSEN, 0F
- the main object of my invention is to provide an improved method for removing scale from pipes without bending of the metal and without subjecting it to acids, such as are used in the pickling process. This object is accomplished by the following process and may be carried out by means of the apparatus illustrated in the accompanying drawings.
- Figure 1 is an elevation, partly sectional, of a specific form of apparatus for twisting pipe while at the same time preventing lateral distortion thereof.
- Fig. 2 is a section of the pipe supporting means, on the line AA of Fig. 1.
- the pipe is rigidly held at one end, as may be done by means of a pipe vise, and is supported throughout its length in a suitable casing or series of supports which will hold the pipe substantially straight; the other end is then engaged by suitable means and rotated axially until the pipe has been twisted sufiiciently to remove or loosen the scale.
- a twist of about four complete turns in a pipe of about 20 feet length and from one-half inch to one inch in diameter is sufficient for removing practically all of the scale.
- Figs. 1 and 2 the pipe from which the scale is to be removed is designated 1.
- One end of the pipe 1 is held in a vise 2 while its opposite end is gripped in the jaws of a rotatable chuck 3 arranged for causing torsional twisting of the pipe.
- the chuck 3 should be so arranged that its rotation shall be controlled so that each length of pipe which is twisted in the apparatus will receive the same amount of twisting. If the apparatus is operated by hand, a pointer & on one of the gears 5 may be used in connection with a dial not shown, to indicate when the desired amount of twisting is completed.
- the pipe 1 is supported throughout its entire length between the vise 2 and the chuck 3 by means of an anti-friction roller support which comprises an outer tubular casing 6 having a head 7 at each end, said heads having axial apertures 18 of such size as to allow a pipe of a certain size to be.
- an anti-friction roller support which comprises an outer tubular casing 6 having a head 7 at each end, said heads having axial apertures 18 of such size as to allow a pipe of a certain size to be.
- Anti-friction rollers 9 are inclosed within the casing 6, and are supported by the heads 7 and rings 10.
- the rollers 9 are prefer- I ably a plurality of short segments placedend to end and independently rotatable, so
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
H. A. F. PETERSEN.
PROCESS OF REMOVING SCALE FROM PIPE.
APPLICATION FILED SEPT. 25, 190B.
Pateilted June 28,1910.
III/elm eases: fiwen'or:
ANDREW a. GRAHAM c0, wowmuuamruam WASNINGRN. u c
1 %TAE% AT HEELUEA. IE. PETERSEN, or CHICAGO, ILLINoIs, ASSIGNOR ro J. H. W. PETERSEN, 0F
' CHICAGO, ILLINOIS.
PROCESS OF REMOVING SCALE FROM PIPE.
Application filed. September 25, 1968.
To all whom it may concern:
Be it known that I, I-IERLUE A. F. PETER- sEN, a subject of the King of Denmark, and a resident of Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Processes of Removing Scale from Pipe, of which the following is a specification.
The main object of my invention is to provide an improved method for removing scale from pipes without bending of the metal and without subjecting it to acids, such as are used in the pickling process. This object is accomplished by the following process and may be carried out by means of the apparatus illustrated in the accompanying drawings.
Figure 1 is an elevation, partly sectional, of a specific form of apparatus for twisting pipe while at the same time preventing lateral distortion thereof. Fig. 2 is a section of the pipe supporting means, on the line AA of Fig. 1.
In carrying out the hereindescribed process, the pipe is rigidly held at one end, as may be done by means of a pipe vise, and is supported throughout its length in a suitable casing or series of supports which will hold the pipe substantially straight; the other end is then engaged by suitable means and rotated axially until the pipe has been twisted sufiiciently to remove or loosen the scale. I find that a twist of about four complete turns in a pipe of about 20 feet length and from one-half inch to one inch in diameter is sufficient for removing practically all of the scale. I have used this process on iron pipes having walls of about 1/16 to 1/8 of an inch in thickness.
I am aware that the scale has heretofore been removed from metal pipes by means of a bending process in which the pipe is passed through a series of rolls which are so placed as to cause the pipe to be bent in wave-like form in passing through the rolls. This disturbance of the metal tends to remove the scale, but through the frequent lateral bending, results in crystallizing the metal and making it brittle, while in my twisting process the metal retains its pliability and can thereafter be bent much more frequently without breaking. A further disadvantage of the roller process is that in passing between the rolls the surface of the metal is polished to some extent so as to close the Specification of Letters Patent.
Patented June 28, 1910.
Serial No. 455,347.
natural pores and thus interfere with the adhesion of enamel or electro-plating.
I have found my process particularly useful on pipes which are afterward enameled and used as electric conduits. The old pickling process for removing scale made such surface less suitable for retaining enamel or electro-plate by corroding and thus roughening and also eating off a substantial part of the metal so as to reduce the thickness of the walls. An additional advantage of my twisting process over the roller process is that in the roller process the ends of the pipe are frequently bent up when they leave the last roller so that this bent part must be cut off or straightened.
When a pipe is twisted, as by rotating its ends in opposite directions, the molecules of the material of the pipe are caused to assume changed positions with respect to each other and the surface areas become spirally or diagonally distorted without however becoming ridged or roughened. The stress upon the homogeneous parts of the pipe is evenly distributed throughout the mass of the material, but the stress upon loose or partly loose surface scales is unevenly distributed and causes the scales to be broken and to chip ofl'. Furthermore, the relative movement of the molecules of the twisted pipe is in circumferential paths and therefore parallel with the surfaces of cleavage of the scales. Twisting of the pipe is therefore more eflective for removing scales than transverse bending and accomplishes better results with less molecular disturbance of the material.
In Figs. 1 and 2, the pipe from which the scale is to be removed is designated 1. One end of the pipe 1 is held in a vise 2 while its opposite end is gripped in the jaws of a rotatable chuck 3 arranged for causing torsional twisting of the pipe. The chuck 3 should be so arranged that its rotation shall be controlled so that each length of pipe which is twisted in the apparatus will receive the same amount of twisting. If the apparatus is operated by hand, a pointer & on one of the gears 5 may be used in connection with a dial not shown, to indicate when the desired amount of twisting is completed. The pipe 1 is supported throughout its entire length between the vise 2 and the chuck 3 by means of an anti-friction roller support which comprises an outer tubular casing 6 having a head 7 at each end, said heads having axial apertures 18 of such size as to allow a pipe of a certain size to be.
freely slipped endwise through the casing 6. Anti-friction rollers 9 are inclosed within the casing 6, and are supported by the heads 7 and rings 10. The rollers 9 are prefer- I ably a plurality of short segments placedend to end and independently rotatable, so
that there will be a minimum of circumferential friction between the pipe 1 and the rollers 9. The ends of the rollers 9 are 7 circular contour by the twisting action.
I am aware that pipes have been twisted experimentally for the purpose of determining their torsional strength and manner of rupture when broken by torsional strains,
- but, as far as I am aware, no process like the one herein described and claimed has ever been put into practice by others than myself for the purpose of removing scale from pipe; neither has such twisting of pipes, so far as I am aware, been put into practice by others, for any purpose, in such manner as to avoid such distortion of the pipes as would necessitate their being straightened before being put upon the market.
What I claim as my invention and desire to secure by Letters Patent is,
1. The process of removing scale from pipe by twisting of the pipe while supporting its periphery against distortion.
2. The process of removing scale from pipe by rotating one part thereof axially with respect to another part so as to twist the pipe and at the same time supporting the intermediate parts of the pipe against distortion.
3. The process of removing scale from metal pipe which consists in twisting the pipe while it is braced throughout its length against axial distortion.
Signed at Chicago this 23rd day of September, 19 08.
HERLUF A. F. PETERSEN.
Witnesses:
' EUGENE A. RUMMIJER,
CARRIE M. SHERWOOD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45534708A US962462A (en) | 1908-09-25 | 1908-09-25 | Process of removing scale from pipe. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45534708A US962462A (en) | 1908-09-25 | 1908-09-25 | Process of removing scale from pipe. |
Publications (1)
Publication Number | Publication Date |
---|---|
US962462A true US962462A (en) | 1910-06-28 |
Family
ID=3030860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US45534708A Expired - Lifetime US962462A (en) | 1908-09-25 | 1908-09-25 | Process of removing scale from pipe. |
Country Status (1)
Country | Link |
---|---|
US (1) | US962462A (en) |
-
1908
- 1908-09-25 US US45534708A patent/US962462A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US962462A (en) | Process of removing scale from pipe. | |
DE502004000290D1 (en) | Device for cleaning and polishing wire surfaces and for improving the quality of the wire for further processing | |
US2189578A (en) | Method and apparatus for reclaiming sheet metal | |
US2643688A (en) | Device for corrugating wire | |
US3133402A (en) | Strander | |
NO129388B (en) | ||
ATE246261T1 (en) | COILZONE FOR IN-LINE TREATMENT OF ROLLED PRODUCTS | |
US702125A (en) | Manufacture of bent tubing. | |
US1945294A (en) | Manufacturing and testing bearings | |
US610726A (en) | William t | |
JPH0987739A (en) | Dehydrogenation heat treatment of continuous traveling type steel wire | |
US781078A (en) | Art or process of removing scale from wires, rods, &c. | |
JP2593207B2 (en) | High-strength steel wire and steel cord for reinforcing rubber products | |
UA12480U (en) | A process for strengthening crankshafts | |
JPS63195216A (en) | Production of endless belt hoop | |
US1012347A (en) | Wire-fence fabric. | |
US483742A (en) | Machine for making hollow cylinders of strips of sheet material and the process thereof | |
US1090369A (en) | Insulating sleeve or tube machine. | |
US943413A (en) | Barbed wire. | |
US686921A (en) | Machine for treating metal pipes or tubing. | |
SU980904A1 (en) | Wire straightening apparatus | |
EP1129797A3 (en) | Apparatus for bending tubes | |
US518570A (en) | Sheet-metal pipe | |
US637655A (en) | Process of making sprocket-wheels. | |
JPS57175026A (en) | Circular arc bending method of shaft rod and thin plate |