US166870A - Improvement in spark-arresters - Google Patents
Improvement in spark-arresters Download PDFInfo
- Publication number
- US166870A US166870A US166870DA US166870A US 166870 A US166870 A US 166870A US 166870D A US166870D A US 166870DA US 166870 A US166870 A US 166870A
- Authority
- US
- United States
- Prior art keywords
- spark
- plates
- improvement
- arresters
- smoke
- 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
- 239000000779 smoke Substances 0.000 description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 241001486234 Sciota Species 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
Definitions
- Figure 1 is a perspective view
- Fig. 2 is a top plan.
- the object of this invention is to produce a spark arrester so arranged that it may be placed inside of a chimney, smoke-stack, or flue at any suitable point, without destroying the draft, while it may also be used upon the top of a chimney or smoke-stack in the usual manner.
- A is a sheet-metal cylinder. Onto the inside circumference of this is riveted a series of triangular metallic plates, (1, a, arranged spirally, so as to overlap each. other. Each of the plates a projects beyond the axis of the cylinder A, so that not only the sides, but also the points of the plates a, will overlap each other, in the manner shown in Fig. 2.
- the plates at are arranged within the chimney or flue itself I prefer to perforate them; but when arranged within a drum or expanded part of a smoke-stack the plates may be made solid, care being taken that they shall be arranged at a suitable distance from each other, so as not to obstruct the draft.
- the series of plates should be continued for at least one round, so that when seen from above the cylinder A will appear perfectly closed.
- the plates a while not in the least obstructing the passage of the smoke, will intercept the flight of any sparks, which, being heavier than the smoke, will strike against the under side of the plates a, and be kept there in suspension until consumed, when the draft will carry them away as ashes.
- the points of the plates overlapping each other will prevent any of the sparks from escaping along the axis of the cylinder A.
- spark-arrester herein described, consisting of a cylinder, A, having a series of internaltriangular plates, a a, arranged circumferentially and spirally, overlapping each other sidewise and at the points, substantially in the manner and for the purpose herein shown and specified.
Description
n] HAWKESWO'R'TH.
Spark-Arrester.
Patented Aug. 17, 1875.
MFETERS, PHOTOLITHOGRAPHER, WASHINGTON. D C.
UNITED STATES PATENT OFFICE.
DANIEL HAWKESWORTH, OF DIGBY, CANADA.
IMPROVEMENT IN SPARK-ARRESTERSQ Specification forming part of Letters Patent No. 166,870, dated August 17, 1875; application filed July 26, 1875.
To all whom it may concern:
Beitkn ownthatLDANrEL HAWKESWORTH, of Digby, in the county of Digby, Province of Nova Scotia and Dominion of Can ada, have invented certain new and useful Improvements in Spark-Arresters; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specification.
Figure 1 is a perspective view, and Fig. 2 is a top plan.
Similar letters of reference indicate corresponding parts.
The object of this invention is to produce a spark arrester so arranged that it may be placed inside of a chimney, smoke-stack, or flue at any suitable point, without destroying the draft, while it may also be used upon the top of a chimney or smoke-stack in the usual manner.
A is a sheet-metal cylinder. Onto the inside circumference of this is riveted a series of triangular metallic plates, (1, a, arranged spirally, so as to overlap each. other. Each of the plates a projects beyond the axis of the cylinder A, so that not only the sides, but also the points of the plates a, will overlap each other, in the manner shown in Fig. 2. When the plates at are arranged within the chimney or flue itself I prefer to perforate them; but when arranged within a drum or expanded part of a smoke-stack the plates may be made solid, care being taken that they shall be arranged at a suitable distance from each other, so as not to obstruct the draft. The series of plates should be continued for at least one round, so that when seen from above the cylinder A will appear perfectly closed. The plates a, while not in the least obstructing the passage of the smoke, will intercept the flight of any sparks, which, being heavier than the smoke, will strike against the under side of the plates a, and be kept there in suspension until consumed, when the draft will carry them away as ashes. The points of the plates overlapping each other will prevent any of the sparks from escaping along the axis of the cylinder A.
The advantages of my improved spark-arrester will be easily understood from the foregoing description. The spiral or rotary motion imparted to the smoke by the circumferentially-arranged plates at will rather improve the draft than otherwise, while the said plates make it absolutely impossible for any sparks to escape until entirely burned out, when the danger of fire, which my improvement is designed to obviate, is entirely avoided.
Having thus described my invention, 1 claim and desire to secure by Letters Patent of the United States- The spark-arrester herein described, consisting of a cylinder, A, having a series of internaltriangular plates, a a, arranged circumferentially and spirally, overlapping each other sidewise and at the points, substantially in the manner and for the purpose herein shown and specified.
In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.
DANIEL HAWKESWORTH. n s.]
Witnesses:
JOHN DALEY, W. L. BAKIN.
Publications (1)
Publication Number | Publication Date |
---|---|
US166870A true US166870A (en) | 1875-08-17 |
Family
ID=2236279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US166870D Expired - Lifetime US166870A (en) | Improvement in spark-arresters |
Country Status (1)
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US (1) | US166870A (en) |
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- US US166870D patent/US166870A/en not_active Expired - Lifetime
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