US1958906A - Return bend for cracking stills - Google Patents
Return bend for cracking stills Download PDFInfo
- Publication number
- US1958906A US1958906A US653394A US65339433A US1958906A US 1958906 A US1958906 A US 1958906A US 653394 A US653394 A US 653394A US 65339433 A US65339433 A US 65339433A US 1958906 A US1958906 A US 1958906A
- Authority
- US
- United States
- Prior art keywords
- return bend
- bend
- cracking stills
- tube
- tubes
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
Definitions
- Claim. (Cl. 285-) My invention relates more particularly to that ass of return bends which are used to connect higher temperat this tendency is return bend has ures. The inevitable result of that the construction of the some instances in practice have run up to as high as temperature.
- toggle will be used to compress or seal the joint which is in compression between the housing and the U bend. As a consequence it By means of accomplishing the foregoing objects may be more readily pian view of the view.
- the annular In the groove 5 I mount a. ring which is split 5 stances for off. The only pressure which tends to produce such a result would be produced by the fluid on the interior of the tube on-return bend.
- a conventional return bend adapted to connect a pair of upset still tubes to provide a continuous passageway therethrough
- a housing comprising annular portions adapted to encircle the end of said tubes, upwardly extending side walls on said annular portions, toggles mounted in said side walls, set screws in said toggles, the inner ends of which contact abutments formed on said return bend, there being peripheral grooves in the upset portion of said tubes, a resilient split ring mounted in each groove, said ring being V shaped in cross section, annular beveled surfaces on the face of the return bend which are fitted to and coincide with the upper surfaces of said rings, corresponding beveled surfaces on the inner walls of said annular portions which contact the lower surfaces of said rings, whereby the tightening
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Harvester Elements (AREA)
Description
May 15, 1934. c. E. ARD
RETURN BEND FOR CRACKING STILLS Filed Jan. 25, 1935 INVENTOR awif/w BY M %QR EY weight, owing to Patented May 15, 1934 RETURN BEND FOR CRACKING STILLS Charles E. Ard, Birmingham, Ala., assignor to Fred C. Fantz, Webster Groves, Mo.
Application January 25, 1933, Serial No. 653,394
1 Claim. (Cl. 285-) My invention relates more particularly to that ass of return bends which are used to connect higher temperat this tendency is return bend has ures. The inevitable result of that the construction of the some instances in practice have run up to as high as temperature.
toggle will be used to compress or seal the joint which is in compression between the housing and the U bend. As a consequence it By means of accomplishing the foregoing objects may be more readily pian view of the view.
same; and
15,000 lbs. pressure and 1400 degrees v Similar reference numerals refer to similar parts throughout the the manner of making the connection between 05 any danger of the tube giving serves to hold the tubes in alinement when the U bend 1 is removed.
The annular In the groove 5 I mount a. ring which is split 5 stances for off. The only pressure which tends to produce such a result would be produced by the fluid on the interior of the tube on-return bend.
It will be also apparent that by this construction and in view of the foregoing statement that the entire construction can be very much lighter than is the case under normal circumthat there is no joint between the tube and the U bend or between the tube and the annular member that has to be sealed. The only joint which necessarily must be sealed is that between the U bend and the tube itself and this as stated, is sealed by compression.
Although I have described a groove formed in the tube, it may be found desirable in practice to provide an upset shoulder on the tube and I do not desire to be understood as limiting myself to the precise structure shown in this case. Having described my invention what I regard as new and desire to secure by Letters Patent In a refinery apparatus, a conventional return bend adapted to connect a pair of upset still tubes to provide a continuous passageway therethrough, a housing comprising annular portions adapted to encircle the end of said tubes, upwardly extending side walls on said annular portions, toggles mounted in said side walls, set screws in said toggles, the inner ends of which contact abutments formed on said return bend, there being peripheral grooves in the upset portion of said tubes, a resilient split ring mounted in each groove, said ring being V shaped in cross section, annular beveled surfaces on the face of the return bend which are fitted to and coincide with the upper surfaces of said rings, corresponding beveled surfaces on the inner walls of said annular portions which contact the lower surfaces of said rings, whereby the tightening of said set screws operates to compress said rings and seal the joint between the return bend and the tubes.
CHARLES E. ARD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US653394A US1958906A (en) | 1933-01-25 | 1933-01-25 | Return bend for cracking stills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US653394A US1958906A (en) | 1933-01-25 | 1933-01-25 | Return bend for cracking stills |
Publications (1)
Publication Number | Publication Date |
---|---|
US1958906A true US1958906A (en) | 1934-05-15 |
Family
ID=24620683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US653394A Expired - Lifetime US1958906A (en) | 1933-01-25 | 1933-01-25 | Return bend for cracking stills |
Country Status (1)
Country | Link |
---|---|
US (1) | US1958906A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373751A (en) * | 1979-05-26 | 1983-02-15 | Daimler-Benz Aktiengesellschaft | Exhaust adapter for exhaust gas measurements |
US5529348A (en) * | 1995-02-27 | 1996-06-25 | Dana Corporation | Spring lock connector |
-
1933
- 1933-01-25 US US653394A patent/US1958906A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373751A (en) * | 1979-05-26 | 1983-02-15 | Daimler-Benz Aktiengesellschaft | Exhaust adapter for exhaust gas measurements |
US5529348A (en) * | 1995-02-27 | 1996-06-25 | Dana Corporation | Spring lock connector |
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