US1347075A - Connection of tubes of dissimilar metals - Google Patents
Connection of tubes of dissimilar metals Download PDFInfo
- Publication number
- US1347075A US1347075A US260904A US26090418A US1347075A US 1347075 A US1347075 A US 1347075A US 260904 A US260904 A US 260904A US 26090418 A US26090418 A US 26090418A US 1347075 A US1347075 A US 1347075A
- Authority
- US
- United States
- Prior art keywords
- tubes
- connection
- dissimilar metals
- striated
- sulfur
- 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
- 229910052751 metal Inorganic materials 0.000 title description 11
- 239000002184 metal Substances 0.000 title description 11
- 150000002739 metals Chemical class 0.000 title description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000737 Duralumin Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 241000865653 Foerschichthys flavipinnis Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S403/00—Joints and connections
- Y10S403/02—Metal treatment
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/34—Branched
Definitions
- APPLICATION FILED may. 2, 191a.
- This invention has for its object to provlde very efficient connection of metal tubes and construction of tubular metal framework and the like, and is more especially intended for employment in joining tubes of aluminium, or of aluminium alloy, by means of steel connecting pieces and, in describing the invention we will presume that it is so employed.
- the present invention introduces the use as a solder or filling between the juxtaposed surfaces of the tube and junctionpiece, of sulfur applied in molten condition, so that it fills even the most minute spaces and serves not only to effect a firm mechanical e'ngagement whereby looseness or play is avoided, but also serves as a dielectric to prevent electrolytic action between the dissimilar metals.
- Figure 1 represents the various members of the frame partly put together and Figs. 2, 3 and 4 show, respectively (drawn to a larger scale) side, end, and plan views of one of the connecting pieces.
- the tubes A may be, for instance, of the aluminium alloy known as duralumin and circular in cross-section the outer surfaces of their extremities being roughened or striated, as shown at a.
- the connecting pieces B may be of steel and these are roughened or striated on their inner surface as shown at Z).
- the tubes A are engaged in the small tubular projections of the connecting-pieces B and are firmly fixed therein by means of sulfur brought to a liquid state by heat.
- molten sulfur allows it to fill up the smallest cavities which there may be in the. roughened or striated surfaces and also to fill up any free. space be tween the tubes A and the connectingpieces B.
- tubes, and connecting-pieces B circular in cross-section, they may be of any other shape which may be desired.
- This process allows of the employment, on a large scale, in aeronautical work, of the light aluminium alloy which is known as duralumin.
- This alloy may vary in composition according to the following percent ages.
- lVhat is claimed is 1.
- a tubular structure comprising tubes and connecting pieces of dissimilar metals, the combination of a tube and connecting piece, the latter having a socket receiving the end of the former, and sulfur filling the space between their contiguous surfaces and serving as a dielectric to prevent electrolytic action.
Description
L.'BREGUET. CONNECTION 0F TUBES 0F DISSIMILAR METALS.
APPLICATION FILED may. 2, 191a.
Patented July 20, 1920.
UNITED STATES PATENT OFFICE.
LOUIS BREGUET, OF VELIZY, FRANCE, ASSIGNOB. T0 SOCIETE ANONYME DES ATELIERS DAVIATION LOUIS BREGUET,
0F VELIZY, SEINE-ET-OISE, FRANCE.
Specification of Letters Patent.
Patented July 20, 1920.
Application filed November 2, 1918. Serial No. 260,904.
To all whom it may concern.-
Be it known that I, LOUIS BREGU'ET, a citi- Zen of the Republic of France, residing in Velizy, Seine-et-Oise, France, have invented certain new and useful Improvements in the Connection of Tubes of Dis simllar Metals, of which the following is a specification.
This invention has for its object to provlde very efficient connection of metal tubes and construction of tubular metal framework and the like, and is more especially intended for employment in joining tubes of aluminium, or of aluminium alloy, by means of steel connecting pieces and, in describing the invention we will presume that it is so employed.
In uniting such dissimilar metals by means of screwthreading, soldering or otherwise, there is encountered the difficulty that there is formed between the different metals an electrical couple which although very feeble, leads to the rapid disaggregation of the metals in intimate contact, and eventually destroys the connection, with the risk of causing seriousaccidents. Further, in the case of tubes of aluminum or aluminum alloys, which are produced by drawing, it is extremely difiicult, or even impossible, to calibrate them to the exact diameter of the connecting pieces, so that there exists a play between the screwthreads and the connecting fittings.
To overcome these disadvantages, the present invention introduces the use as a solder or filling between the juxtaposed surfaces of the tube and junctionpiece, of sulfur applied in molten condition, so that it fills even the most minute spaces and serves not only to effect a firm mechanical e'ngagement whereby looseness or play is avoided, but also serves as a dielectric to prevent electrolytic action between the dissimilar metals.
The following description with reference to the accompanying drawing of how the invention can be applied to the construction of the frame of the small boat of an airship will enable the nature of this invention and how it can be carried into efiect to be understood. v
Figure 1 represents the various members of the frame partly put together and Figs. 2, 3 and 4 show, respectively (drawn to a larger scale) side, end, and plan views of one of the connecting pieces.
The tubes A, may be, for instance, of the aluminium alloy known as duralumin and circular in cross-section the outer surfaces of their extremities being roughened or striated, as shown at a.
The connecting pieces B may be of steel and these are roughened or striated on their inner surface as shown at Z).
The tubes A, are engaged in the small tubular projections of the connecting-pieces B and are firmly fixed therein by means of sulfur brought to a liquid state by heat.
The great fluidity of molten sulfur allows it to fill up the smallest cavities which there may be in the. roughened or striated surfaces and also to fill up any free. space be tween the tubes A and the connectingpieces B.
Although we have shown the tubes, and connecting-pieces B circular in cross-section, they may be of any other shape which may be desired.
This process allows of the employment, on a large scale, in aeronautical work, of the light aluminium alloy which is known as duralumin. This alloy may vary in composition according to the following percent ages.
lVhat is claimed is 1. In a tubular structure comprising tubes and connecting pieces of dissimilar metals, the combination of a tube and connecting piece, the latter having a socket receiving the end of the former, and sulfur filling the space between their contiguous surfaces and serving as a dielectric to prevent electrolytic action.
2. In a tubular structure comprising tubes and connecting pieces of dissimilar metals, the combination of a tube striated at its end, with a connecting piece having a socket receiving such striated end, and sulfur filling the space between their contigu ous surfaces.
3. In a tubular structure, the combination of a tube of aluminium alloy, striated at its vs'ocl'iets makin a loese lit with the tubes, end, With a connecting piece of steel, receivthe contiguous surfztces of the tubes and ing such striated end, and sulfur filling the sockets being striated, and sulfur filling the 10 space between their contiguous surfaces. space betwi're'en aces. i
4. In '21- tubular struct'uf'e comprising In Witness Whred'i, I 'h'ztv' hereunto tubes and connecting pieces havin sockets signedmy name. I for receiving the J ends of the tufies; such 7 Y LOUIS BREGUET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US260904A US1347075A (en) | 1918-11-02 | 1918-11-02 | Connection of tubes of dissimilar metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US260904A US1347075A (en) | 1918-11-02 | 1918-11-02 | Connection of tubes of dissimilar metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1347075A true US1347075A (en) | 1920-07-20 |
Family
ID=22991134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US260904A Expired - Lifetime US1347075A (en) | 1918-11-02 | 1918-11-02 | Connection of tubes of dissimilar metals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1347075A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
| USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
| US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
| US9505542B2 (en) | 2005-10-20 | 2016-11-29 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US9815607B2 (en) | 2005-11-21 | 2017-11-14 | Conagra Foods Rdm, Inc. | Food tray |
-
1918
- 1918-11-02 US US260904A patent/US1347075A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9505542B2 (en) | 2005-10-20 | 2016-11-29 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US10569949B2 (en) | 2005-10-20 | 2020-02-25 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US9815607B2 (en) | 2005-11-21 | 2017-11-14 | Conagra Foods Rdm, Inc. | Food tray |
| USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
| USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
| US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
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