US531662A - Device for cutting boiler-tubes - Google Patents
Device for cutting boiler-tubes Download PDFInfo
- Publication number
- US531662A US531662A US531662DA US531662A US 531662 A US531662 A US 531662A US 531662D A US531662D A US 531662DA US 531662 A US531662 A US 531662A
- Authority
- US
- United States
- Prior art keywords
- sleeve
- rocker
- cutters
- casting
- shaft
- 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
- 238000005266 casting Methods 0.000 description 26
- 230000002093 peripheral Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/14—Machines or devices for shearing or cutting tubes cutting inside the tube
- B23D21/145—Machines or devices for shearing or cutting tubes cutting inside the tube hand operated
Definitions
- CARL OTTO THIIEVMVE on ST. LOUIS, MISSOURI.
- Fig. 7 is a middle vertical section of the rocker as hereinafter explained.
- Fig. Si s a section on line 0 c of Fig. 7; and
- Fig. 9 is an enlarged side view of the inner end of the sleeve surrounding the main shaft of my device.
- the object of my invention is to materially simplify the construction set forth and described in Letters Patent No. 512,631, granted me under date of January 9, 1891, andrto this end
- a boiler tube cutter which inner reduced stem 6 of the shaft 3 is'passed I a cone 7, the narrow end of theicone resting against the inner end of the shaft 3, the cone being held on the stem by the terminal out 8.
- the outer surface of the cone is provided with a series of converging peripheral dovetail guides 9 and guide-Ways 10, the purpose of, which will hereinafter be explained.
- a sleeve 11 Surrounding the shaft 3 is a sleeve 11, the inner end of which is provided with an enlarged portion or hollow head 12 whose inner walls are conical for the accommodation of l the cone 7. About the sleeve 11 is free to move a rotatable conical exteriorly-screwthreaded casting 13 whose inner reduced end is limited by the circular shoulder 14 formed atthe base of the portion 12.
- Theouteriperipheral edge of the casting is provided with a series of depressions or notches 15 for the engagement of the ends of the rocker 16 hereinafter. to be described.
- a forked handle 17 Mounted'loosely on the sleeve 11 exterior j 'and'adjacent to the casting'13 is a forked handle 17. Between the forks 18 of thehandle and fixed to the sleeve 11 is a ratchet wheel 19 engaged by the pawl 20pivoted by a bolt 21 between the forks.
- rocker 16 Mounted on the side of the handle on the fork adjacent to the casting 13 is a rocker 16 having engaging ends 22.
- the opposite guides 9 receive the cutters 30, the bases of which have corresponding dovetail openings 31 to pass over the guides, and the guide-ways 10 receive the cutters 32 whose bases have dovetail projections 33 to enter said guides.
- This arrangement makes the most perfect and durable form of cutting device.
- the outer ends of the cutters pass through cut-away portions 3% formed along the innerperiphery of the enlarged portion 12, the end of this portion being interiorly screwthreaded as at 35, and into this is screwed the casing 36, the distance to which it is screwed being limited by the shoulder 37 at the base of the screw-threaded portion 35.
- the casing is screwed by the aid of the polygonal nut or head 38. ⁇ Vhen the casing 36 isdriven home .the screw-threaded end thereof just reaches to the cutters, and thus guides the latter as they pass through the openings 31, preventing lateral binding.
- the rocker 16 is then disengaged or tripped so as to slide by the depressions 15, the pawl 20 is thrown into engagement with the ratchet 19, the handle 17 is then operated in proper direction to turn the ratchet, which in turn imparts a rotary motion to the sleeve 11, this operating the cutters at the inner end thereof.
- the said cutters are kept in contact with theinner wall of the tube 2 by operating the hand disk 4 in proper direction, it being remembered that this disk moves the shaft 3 which expands the cutters when moved outwardly.
- the casing 36 thoroughly protects the inner parts of the device, and at the same time its end where it meets the enlarged portion 12 serves asa guide for the cutters 30 and 32.
- a suitable shaft asleeve surrounding the same, a rotatable exteriorly screw-threaded casting passed over said sleeve, an operating handle embracing said sleeve, a series of peripheral depressions along the outer edge of the casting, a rocker pivoted to the handle, and means for giving a predetermined inclination to the rocker, substantially as set forth.
- a suitable shaft In a tube cutter, a suitable shaft, a sleeve embracing the same, an enlarged inner end on said sleeve, suitable cut-a-way portions at the end of the enlarged portion of the sleeve, said enlarged end being interiorly screwthreaded and having a limiting shoulder or ridge at the base of the screw-threaded portion, and a casing adapted 'to screw into the enlarged end of the sleeve and limited by the said shoulder, a series of cutters at the inner end of the shaft, said cutters passing through the cutaway openings and being guided by the end of the casing, substantially as set forth.
- a suitable screwthreaded shaft a cone at the inner end thereof, a sleeve embracing said shaft, cnt-a-way portions at the inner end of the sleeve, a casing detachably secured to the inner enlarged end of the sleeve, suitable dove-tail guides and guide-ways on the periphery of the cone, eutters passing through the cut-a-way portions, and means for rotating the sleeve and expandin g the cutters, substantially as set forth.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
Description
a (No Model.)
0. 0. THIEME. DEVICE FOR CUTTING BOILER TUBES. .No. 531,662.
Patented Jan. 1, 1895.
QXRh wowo v uwmtoz Y UNIT DLSTATESPATENT OFFICE.
CARL OTTO THIIEVMVE, on ST. LOUIS, MISSOURI.
DEVICE FOR CUTTING BOILER-TUBES.
SPECIFIGQTION forming part of Letters PatentNOQ 531 ,662, dated January 1, 1895. Application filed October 1, 1894:. Seria1N0-524,582- (No model.)
To aZZ whom it may concern:
Be it known that I, CARL OrroTmEME, of the city of St.Louis,State of Missouri, have invented certain new and useful Improvements in Devices for Cutting B oiler-Tubes, of which the following is a full, clear, and exact description, reference being had-to the ac companyingdrawings,fo'rminga part hereof. My invention has relation to improvements in devices for cutting boiler tubes and coni sists 1n the novel arrangement and combinadetached View of a second form ofcutterf Fig. 7 is a middle vertical section of the rocker as hereinafter explained. Fig. Sis a section on line 0 c of Fig. 7; and Fig. 9 is an enlarged side view of the inner end of the sleeve surrounding the main shaft of my device.
The object of my invention is to materially simplify the construction set forth and described in Letters Patent No. 512,631, granted me under date of January 9, 1891, andrto this end I have devised a boiler tube cutter which inner reduced stem 6 of the shaft 3 is'passed I a cone 7, the narrow end of theicone resting against the inner end of the shaft 3, the cone being held on the stem by the terminal out 8. The outer surface of the cone is provided with a series of converging peripheral dovetail guides 9 and guide-Ways 10, the purpose of, which will hereinafter be explained.
Surrounding the shaft 3 is a sleeve 11, the inner end of which is provided with an enlarged portion or hollow head 12 whose inner walls are conical for the accommodation of l the cone 7. About the sleeve 11 is free to move a rotatable conical exteriorly-screwthreaded casting 13 whose inner reduced end is limited by the circular shoulder 14 formed atthe base of the portion 12. I
Theouteriperipheral edge of the casting is provided with a series of depressions or notches 15 for the engagement of the ends of the rocker 16 hereinafter. to be described. i
Mounted'loosely on the sleeve 11 exterior j 'and'adjacent to the casting'13 is a forked handle 17. Between the forks 18 of thehandle and fixed to the sleeve 11 is a ratchet wheel 19 engaged by the pawl 20pivoted by a bolt 21 between the forks.
Mounted on the side of the handle on the fork adjacent to the casting 13 is a rocker 16 having engaging ends 22.
K the opposite engaging end 22 of the rocker will engage the depressions 15, and by a reverse operation of the handle 17 unscrew the casting 13 from out of the tube 2.
The opposite guides 9 receive the cutters 30, the bases of which have corresponding dovetail openings 31 to pass over the guides, and the guide-ways 10 receive the cutters 32 whose bases have dovetail projections 33 to enter said guides. This arrangement makes the most perfect and durable form of cutting device. The outer ends of the cutters pass through cut-away portions 3% formed along the innerperiphery of the enlarged portion 12, the end of this portion being interiorly screwthreaded as at 35, and into this is screwed the casing 36, the distance to which it is screwed being limited by the shoulder 37 at the base of the screw-threaded portion 35. The casing is screwed by the aid of the polygonal nut or head 38. \Vhen the casing 36 isdriven home .the screw-threaded end thereof just reaches to the cutters, and thus guides the latter as they pass through the openings 31, preventing lateral binding.
The operation is as follows: After the parts are assembled as indicated,'the casting 13 is driven into the tube 2 as already indicated (it being understood of course that during the rotation of the casting the pawl 20 is disengaged from the ratchet 19). Then, upon the turning of the hand disk 4 in the proper direction the shaft 3 with its cone 7 will be drawn outwardly, the guides 9 and guideways 10 forcing outwardly, that is, expanding the cutters against the inner wall of the tube 2. The rocker 16 is then disengaged or tripped so as to slide by the depressions 15, the pawl 20 is thrown into engagement with the ratchet 19, the handle 17 is then operated in proper direction to turn the ratchet, which in turn imparts a rotary motion to the sleeve 11, this operating the cutters at the inner end thereof. The said cutters are kept in contact with theinner wall of the tube 2 by operating the hand disk 4 in proper direction, it being remembered that this disk moves the shaft 3 which expands the cutters when moved outwardly. The casing 36 thoroughly protects the inner parts of the device, and at the same time its end where it meets the enlarged portion 12 serves asa guide for the cutters 30 and 32.
Having described my invention, what I claim is- 1. In a tube cutter, a suitable screwthreaded shaft, a cone at the inner end thereof, a sleeve embracing said shaft, cut-a-way portions at the inner end of said sleeve, acasing detachably secured to the inner enlarged end of the sleeve, suitable guides and guide-ways on the periphery of the cone, cutters passing through the cut-a-way portions, means for retating the sleeve and expanding the cutters, substantially as set forth.
2. In a tube cutter, a suitable shaft, asleeve surrounding the same, a rotatable exteriorly screw-threaded casting passed over said sleeve, an operating handle embracing said sleeve, a series of peripheral depressions along the outer edge of the casting, a rocker pivoted to the handle, and means for giving a predetermined inclination to the rocker, substantially as set forth.
3. In a tube cutter, a suitable sleeve, a retatable casting surrounding the same, a ban-- die embracing the sleeve, a rocker pivoted to the side of the handle, a retaining bolt for said rocker having a smooth end and flat sui faces contiguousto one another and at a suitable angle with each other, a cavity in said rocker, a pin in said cavity having a head cooperating with the flat surfaces of the bolt, and an encircling spring for said pin to keep the same in contact against either of the flat surfaces of the retaining bolt, substantially as set forth.
t. In a tube cutter, a suitable shaft, a sleeve embracing the same, an enlarged inner end on said sleeve, suitable cut-a-way portions at the end of the enlarged portion of the sleeve, said enlarged end being interiorly screwthreaded and having a limiting shoulder or ridge at the base of the screw-threaded portion, and a casing adapted 'to screw into the enlarged end of the sleeve and limited by the said shoulder, a series of cutters at the inner end of the shaft, said cutters passing through the cutaway openings and being guided by the end of the casing, substantially as set forth.
5. In a tube cutter, a suitable screwthreaded shaft, a cone at the inner end thereof, a sleeve embracing said shaft, cnt-a-way portions at the inner end of the sleeve, a casing detachably secured to the inner enlarged end of the sleeve, suitable dove-tail guides and guide-ways on the periphery of the cone, eutters passing through the cut-a-way portions, and means for rotating the sleeve and expandin g the cutters, substantially as set forth.
In testimony whereof Iaffix my signature in the presence of two witnesses.
7 CARL OTTO TIIIEHE.
Witnesses:
I-I. AUHL, E. STAREK.
Publications (1)
Publication Number | Publication Date |
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US531662A true US531662A (en) | 1895-01-01 |
Family
ID=2600436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US531662D Expired - Lifetime US531662A (en) | Device for cutting boiler-tubes |
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US (1) | US531662A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2731718A (en) * | 1954-06-04 | 1956-01-24 | Harry E Goss | Inside pipe cutter |
US4841636A (en) * | 1987-08-31 | 1989-06-27 | Westinghouse Electric Corp. | Positive drive mechanism for uniform feed of internal tube cutter |
DE29620538U1 (en) * | 1996-11-26 | 1997-06-26 | Baldauf, Andreas, 47475 Kamp-Lintfort | Models of soccer stadiums |
US5685078A (en) * | 1995-03-11 | 1997-11-11 | Dean Gray Enterprises | Internal pipe cutter |
US20100031511A1 (en) * | 2005-10-06 | 2010-02-11 | Roderic Henry Vince | Pipe Cutter |
-
0
- US US531662D patent/US531662A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2731718A (en) * | 1954-06-04 | 1956-01-24 | Harry E Goss | Inside pipe cutter |
US4841636A (en) * | 1987-08-31 | 1989-06-27 | Westinghouse Electric Corp. | Positive drive mechanism for uniform feed of internal tube cutter |
US5685078A (en) * | 1995-03-11 | 1997-11-11 | Dean Gray Enterprises | Internal pipe cutter |
DE29620538U1 (en) * | 1996-11-26 | 1997-06-26 | Baldauf, Andreas, 47475 Kamp-Lintfort | Models of soccer stadiums |
US20100031511A1 (en) * | 2005-10-06 | 2010-02-11 | Roderic Henry Vince | Pipe Cutter |
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