US157875A - Improvement in boiler-tube expanders - Google Patents
Improvement in boiler-tube expanders Download PDFInfo
- Publication number
- US157875A US157875A US157875DA US157875A US 157875 A US157875 A US 157875A US 157875D A US157875D A US 157875DA US 157875 A US157875 A US 157875A
- Authority
- US
- United States
- Prior art keywords
- boiler
- tube
- improvement
- expander
- tube expanders
- 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
- 239000011324 bead Substances 0.000 description 6
- 206010022000 Influenza Diseases 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
Definitions
- My invention consists iu au expander adapted to all sized tubes made in longitudinal sections, the outer surface of which is turned to various diameters distinct from each other, each gradation being provided witha collar foiI forming the bead inside the head of the boiler.
- Figure 1 is a longitudinal section of my improved expande'r.
- Fig. 2 is a cross-section of Fig. 1, taken in the line x x.
- A is the expander, formed of longitudinal sections B, eight (more or less) in number, turned on the outside in separate grades O, to suit the different sizes of tube used in boilermaking.
- D is a collar in each grade or size for forming the bead inside of the head or tube plate.
- the sections B are fitted together and turned as a single piece, substantially as seen in the drawing. Near each end a groove, E, is turned, and in these grooves spring-hands F F are placed, which hold the sections B together.
- the ends of these hands are tapering and thin, and lap past each other, as seen at G, Fig. 2; consequently they expand and contract as may be required.
- H is the drift or tapering pin, which is driven into the central tapering aperture of the expander. This drift is made of proper length and size, and as it is driven in the sections are expanded.
- VVhen the drift is driven the effect is represented by tube and tube-sheet seen in dotted lines in Fig. 1, Where I represents the bead on the tube inside the head or tube-sheet..
- a boiler-tube expander constructed as shown and deseribed-that is, consisting of sections B, with grades (J and collars D, arranged to operate in combination with the drift H, substantially as described.
Description
UNITED STATES PATENT OFFICE.
WILLIAM S. SHARPNECK, OF ONAWA CITY, IOWA.
IMPROVEMENT IN BOILER-TUBE EXPANDERS.
Specification forming part of Letters Patent No. 157,875, dated December 15, 1874; application filed November 7, 1874.
To all whom it may concern:
Be it known that I, WM. S. SHARPNEGK, of Onawa City and county of Monona and State of Iowa, have invented a new and useful Improvement in Boiler-Tube Expanders, of which the following is a specifica-tion:
The difliculty usually experienced by boilermakers in properly setting boiler-tubes is frequently very great, as it is a Very particular job, and unless it is performed in a proper manner the boiler leaks around the flues, and occasions much trouble. This imperfection arises inainly from the Want of a nroperly-constituted expander. or one suited for the particular caliber of the tube.
My invention consists iu au expander adapted to all sized tubes made in longitudinal sections, the outer surface of which is turned to various diameters distinct from each other, each gradation being provided witha collar foiI forming the bead inside the head of the boiler.
Figure 1 is a longitudinal section of my improved expande'r. Fig. 2 is a cross-section of Fig. 1, taken in the line x x.
Similar letters of reference indicate corresponding parts.
A is the expander, formed of longitudinal sections B, eight (more or less) in number, turned on the outside in separate grades O, to suit the different sizes of tube used in boilermaking. D is a collar in each grade or size for forming the bead inside of the head or tube plate. The sections B are fitted together and turned as a single piece, substantially as seen in the drawing. Near each end a groove, E, is turned, and in these grooves spring-hands F F are placed, which hold the sections B together. The ends of these hands are tapering and thin, and lap past each other, as seen at G, Fig. 2; consequently they expand and contract as may be required. H is the drift or tapering pin, which is driven into the central tapering aperture of the expander. This drift is made of proper length and size, and as it is driven in the sections are expanded.
VVhen the drift is driven the effect is represented by tube and tube-sheet seen in dotted lines in Fig. 1, Where I represents the bead on the tube inside the head or tube-sheet..
With this expander tubes of any Ordinary size may be set in the most perfect and coinplete manner.
Having,` thus described my inven tion, I clai m as new and desire to secure by Letters Patentl. A boiler-tube expander constructed as shown and deseribed-that is, consisting of sections B, with grades (J and collars D, arranged to operate in combination with the drift H, substantially as described.
2. The expanding-hands F F, in combination with a sectional tuhe-expander, substantially as described, and for the purposes specified.
NVILLIAM S. SHARPNECK.
Witnesses:
IVI. A. STEVENs, GEORGE W. PENN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US157875A true US157875A (en) | 1874-12-15 |
Family
ID=2227285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US157875D Expired - Lifetime US157875A (en) | Improvement in boiler-tube expanders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US157875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236104A (en) * | 1963-06-10 | 1966-02-22 | Edward B Pape | Tube expander |
| US4733551A (en) * | 1985-10-10 | 1988-03-29 | W.E.B. Tooling Pty Ltd. | Pipe expander |
-
0
- US US157875D patent/US157875A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236104A (en) * | 1963-06-10 | 1966-02-22 | Edward B Pape | Tube expander |
| US4733551A (en) * | 1985-10-10 | 1988-03-29 | W.E.B. Tooling Pty Ltd. | Pipe expander |
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