USRE3934E - Improvement in stove-pipe elbows - Google Patents
Improvement in stove-pipe elbows Download PDFInfo
- Publication number
- USRE3934E USRE3934E US RE3934 E USRE3934 E US RE3934E
- Authority
- US
- United States
- Prior art keywords
- stove
- improvement
- elbow
- pipe elbows
- elbows
- Prior art date
Links
- 210000001513 Elbow Anatomy 0.000 title description 20
- 239000002184 metal Substances 0.000 description 6
- 210000000614 Ribs Anatomy 0.000 description 2
- 102000012152 Securin Human genes 0.000 description 2
- 108010061477 Securin Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
Images
Description
UNITED STATES PATENT OFFICE c. noELLER, oF CINCINNATI, omo, AssIGNonio "HIMsELF Aun HENRY SAMUEL HonLLEn, oF SAME PLAGE.
IMPROVEMENT m sTovE-PIPE lamows.
Specification forming part of Letters VPatent No. 82,407, dated September 22, 1868; reissue No. 3,934, dated April:l
I, GJHOELLER, of Cincinnati, in thecounty of Hamilton and State of Ohio, have invented 'a new and useful Improvement-in Stove- Pipes and other Elbows, of which the following is al specification: f.
The netureof mlnveetiancnsits in form.-
" ing fthe elbow of o'ne piece of'sheet metal, havcin gits surface of smallest curvature corrugated ior ribbed, and the surface of largest .curvature extend radially about the surface of smallest curvature over one-half of the surface of vthel elbow, gradually decreasing indepth toward 'the smooth surface O. a a. are rivets, of
which two or more are used at .each end the elbow for'securin g the la The riveting is' done before the elbow is shaped. Intermediate rivets may be usedin the lap between the extreme rivets lc a. When the elbow is' constructedth'e surplus vmetalin the surface of its smallest .curvature is buckled outwardly, forming the exterior corrugations or ribs. Much-time is saved in this construction of the elbow over the -mode.now'employed, by
means of crimping together a series of cylindrical sections of sheet metal. In my proved elbow but one piece of metal is used.
, I claim as, my inventionl s The stovelpipe and other elbows, constructed as herein shown and described, as a. new
article of. manufacture.
0. HOELLER.
Family
ID=
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