US1133014A - Method of extracting mandrels from boiler-tube expanders. - Google Patents
Method of extracting mandrels from boiler-tube expanders. Download PDFInfo
- Publication number
- US1133014A US1133014A US72483512A US1912724835A US1133014A US 1133014 A US1133014 A US 1133014A US 72483512 A US72483512 A US 72483512A US 1912724835 A US1912724835 A US 1912724835A US 1133014 A US1133014 A US 1133014A
- Authority
- US
- United States
- Prior art keywords
- mandrel
- boiler
- mandrels
- sections
- expander
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
-
- 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
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49352—Repairing, converting, servicing or salvaging
-
- 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
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/4992—Overedge assembling of seated part by flaring inserted cup or tube end
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
Definitions
- My invention relates to an improved method of extractin mandrels from boiler tube expanders, an consists in the novel steps of procedure hereinafter described and specifically pointed out in the appended claims.
- the object of my invention is to provide an improved method of extracting mandrels from sectional boiler tube expanders.
- a sleeve 6 adapted to loosely embrace the mandrel and having an arm 7 extended laterally therefrom to receive the impacts of a suitable hammer sov that part of the force of each impact will be imparted to the said sections 5. of the expander to loosen them from the mandrel and another part of the force of the impact will be imparted to the side of the mandrel to loosen the mandrel without damaging it.
- the said arm 7 is preferably shaped so that 1ts extractor 3 extends in a plane parallel with the sleeve.
- the hammer which I prefer to use is a common pneumatic hammer 8, the tool 9 of which is provided with a stem 10 which fits into the end of the body of the hammer.
- the numeral 11 designates a rubber ring which embraces the sections 5 of the expander to yieldingly hold them in place. When assembled, these sections each engage one of the faces of the tapered polygonal portion 12 of the mandrel and their outersurfaces combined form substantially a shoulder of the proper shape to expand the tube 1 in the usual manner.
- the sleeve 6 is placed over themandrel, as shown, and the tool 9 of the pneumatic hammer is placed against the rounded end 13 of the extractor arm 7 and said hammer is started in the usual manner and caused to exert blows or shocks to the said arm, thereby driving the expander sections 5 away from the mandrel 4 and loosening the same.
- Each impact of the hammer forces the end of the sleeve 6 against the expander sections 5 and at the same time strikes aside blow against the said mandrel 4 and thereby also loosens the same.
- I may place the pneumatic hammer 8 directly against the outer end of said sleeve 6 and thereby simultaneously loosen all of the extractor sections from the mandrel. 4
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
- Percussion Or Vibration Massage (AREA)
Description
- J. W. FAESSLER.
METHOD OF EXTRAOTING MANDRELS FROM BOILER TUBE EXPANDERS.
APPLICATION FILED OCT. 9, 1912.
1,133,014. Patented Mar. 23,1915.
JOHN w. FAESSLER, or MOIBERLY, MISSOURI.
METHOD or nxzrnao'rmc MANDRELS FROM BOILER-TUBE nxraxnans.
Specification of Letters Patent.
Patented Mar. 23, 1915.
Application filed October 9, 1912. Serial No. 724,835.
To all whom it may concern Be it known that I, JOHN W. FAEssLER, a citizen of the United States, and resident of Moberly, Randolph county, Missouri, have invented certain new and useful Improvements in Methods of Extracting Mandrels from Boiler-Tube Expanders, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, formin a part hereof.
My invention relates to an improved method of extractin mandrels from boiler tube expanders, an consists in the novel steps of procedure hereinafter described and specifically pointed out in the appended claims. v
The object of my invention is to provide an improved method of extracting mandrels from sectional boiler tube expanders. in
order that the time of the operator will be greatly economized and the mandrel will bev promptly extracted without injury to either the mandrel or the sections of the expander.
Heretofore the mandrels of sectional boiler tube expanders have been extracted by delivering'side-wise blows of a hand hammer upon the side of the mandrel in order to loosen the same. and this is what I term the hand method; but the described hand method has not been satisfactory,
for the reason that it occupied a great deal ing the tube.
In order to extract the mandrel without injuring either the mandrel or the sections of the expander, 'I need not strike the mandrel 4, but on the other hand I strike the projecting ends of the sections 5 of the expander with any suitable tool and thereby virtually drive them off the mandrel.
For the purpose of striking the expander sections 5 to detach the mandrel 4, I preferably make use of a sleeve 6 adapted to loosely embrace the mandrel and having an arm 7 extended laterally therefrom to receive the impacts of a suitable hammer sov that part of the force of each impact will be imparted to the said sections 5. of the expander to loosen them from the mandrel and another part of the force of the impact will be imparted to the side of the mandrel to loosen the mandrel without damaging it. The said arm 7 is preferably shaped so that 1ts extractor 3 extends in a plane parallel with the sleeve. The hammer which I prefer to use is a common pneumatic hammer 8, the tool 9 of which is provided with a stem 10 which fits into the end of the body of the hammer.
The numeral 11 designates a rubber ring which embraces the sections 5 of the expander to yieldingly hold them in place. When assembled, these sections each engage one of the faces of the tapered polygonal portion 12 of the mandrel and their outersurfaces combined form substantially a shoulder of the proper shape to expand the tube 1 in the usual manner.
To extract the mandrel 4 the sleeve 6 is placed over themandrel, as shown, and the tool 9 of the pneumatic hammer is placed against the rounded end 13 of the extractor arm 7 and said hammer is started in the usual manner and caused to exert blows or shocks to the said arm, thereby driving the expander sections 5 away from the mandrel 4 and loosening the same. Each impact of the hammer forces the end of the sleeve 6 against the expander sections 5 and at the same time strikes aside blow against the said mandrel 4 and thereby also loosens the same. In some cases I may place the pneumatic hammer 8 directly against the outer end of said sleeve 6 and thereby simultaneously loosen all of the extractor sections from the mandrel. 4
I claim:
1. The herein described method of extracting mandrels from boiler tube expanders. which consists in delivering a series of blows (or shocks) upon the expandersections, and thereby bodily forcing the expander from the mandrel and simultaneously impacting the side of the mandrel.
delivering a series of blows (or shocks) name to this specification,inpresence of M10 upon the expander-sections, and thereby subscribing witnesses. bodily forcing all of the sections of the ex- JOHN W FAESSLER pander from the mandrel and simultaner v V 5 ously impacting the side of the mandrel v Witnesses:
with a. tool separate from said mandrel. CHAS. F. PALMER,
In testimony whereof, I have signed. my A E. L. WALLACE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72483512A US1133014A (en) | 1912-10-09 | 1912-10-09 | Method of extracting mandrels from boiler-tube expanders. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72483512A US1133014A (en) | 1912-10-09 | 1912-10-09 | Method of extracting mandrels from boiler-tube expanders. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1133014A true US1133014A (en) | 1915-03-23 |
Family
ID=3201132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US72483512A Expired - Lifetime US1133014A (en) | 1912-10-09 | 1912-10-09 | Method of extracting mandrels from boiler-tube expanders. |
Country Status (1)
Country | Link |
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US (1) | US1133014A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2701044A (en) * | 1949-12-16 | 1955-02-01 | Automatic Elect Lab | Coin gauge cover |
US2874457A (en) * | 1954-03-26 | 1959-02-24 | Kent Moore Organization Inc | Method of removing diesel engine injector tubes |
US3947950A (en) * | 1974-06-24 | 1976-04-06 | Pressure Vessels, Inc. | Apparatus and method for beading tubes |
-
1912
- 1912-10-09 US US72483512A patent/US1133014A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2701044A (en) * | 1949-12-16 | 1955-02-01 | Automatic Elect Lab | Coin gauge cover |
US2874457A (en) * | 1954-03-26 | 1959-02-24 | Kent Moore Organization Inc | Method of removing diesel engine injector tubes |
US3947950A (en) * | 1974-06-24 | 1976-04-06 | Pressure Vessels, Inc. | Apparatus and method for beading tubes |
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