US161714A - Improvement in dampers - Google Patents
Improvement in dampers Download PDFInfo
- Publication number
- US161714A US161714A US161714DA US161714A US 161714 A US161714 A US 161714A US 161714D A US161714D A US 161714DA US 161714 A US161714 A US 161714A
- Authority
- US
- United States
- Prior art keywords
- damper
- dampers
- plates
- pipe
- improvement
- 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 2
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L13/00—Construction of valves or dampers for controlling air supply or draught
- F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
Definitions
- My invention consists of two plates, with a pivot for each, forming the damper, the pivots being arranged between the sides and center of the pipe, so that the plates meet and close over the middle for shutting the damper, and the pivots are geared together outside of the pipe by segmental wheels, to be worked simultaneously and alike, and by one and the same handle.
- the arrangement is so that the dampers swing up at the middle and down at the sides of the pipe, so that when partially open they incline upward toward the middle opening in a Way that facilitates the draft by directing it in the middle of the pipe.
- Figure l is a top view of my improved damper.
- Fig. 2 is a sectional elevation, and
- Fig. 3 is a side elevation.
- A is the pipe 5 B, the damper-plates; O, the pivots; D, the segmental wheels gearing the pivots together; and E, the handle for actuating the plates.
- Fig. 1 the dampers are represented as closed, the plates meeting together at the middle a little higher than at the pivots, so that when opened slightly they are so inclined that they direct the smoke mainly through the middle opening.
- this damper in the throat of a ue; but it may be placed higher up, if preferred.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
.|. STEWART` Damper.
Patented April 6,1875.
ATT-01mm.
THE GRAPHIC C0. PHOTOrLITH.39&41 PARK PLAUEN-Y.
PATENT FFICE.
JACOB STEWART, OF MOLINE, ILLINOIS.
IMPROVEMENT IN DANIPERS.-
Specification forming part of Letters Patent No. 161,714, dated April 6, 1875 application led October 24, 1874.
To all whom t may concern:
Be it known that I, J A0013 STEWART, M. D., of Moline, in the county of Rock Island and State of Illinois, have invented a new and Improved Stove-Pipe Damper, of which the following is a specification:
My invention consists of two plates, with a pivot for each, forming the damper, the pivots being arranged between the sides and center of the pipe, so that the plates meet and close over the middle for shutting the damper, and the pivots are geared together outside of the pipe by segmental wheels, to be worked simultaneously and alike, and by one and the same handle. The arrangement is so that the dampers swing up at the middle and down at the sides of the pipe, so that when partially open they incline upward toward the middle opening in a Way that facilitates the draft by directing it in the middle of the pipe.
Figure lis a top view of my improved damper. Fig. 2 is a sectional elevation, and Fig. 3 is a side elevation.
Similar letters of reference indicate corresponding parts.
A is the pipe 5 B, the damper-plates; O, the pivots; D, the segmental wheels gearing the pivots together; and E, the handle for actuating the plates.
In Fig. 1 the dampers are represented as closed, the plates meeting together at the middle a little higher than at the pivots, so that when opened slightly they are so inclined that they direct the smoke mainly through the middle opening.
I prefer to arrange this damper in the throat of a ue; but it may be placed higher up, if preferred.
The double inclines, which the plates present to the smoke, oppose the draft with less abruptness than the angles presented by the ordinary single-plate dampers, and thus obstruct the draft less, and they close tighter than the other.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, in a smoke-damper, of two plates, B, pivoted at opposite sides of the center of a liue, to form converging inclines, and the wheels or toothed segments D, substantially as specified.
JACOB STEWART, M. D.
Subscribed in presence of- GEo. STEPHENS, ANDREW FEIBERG.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US161714A true US161714A (en) | 1875-04-06 |
Family
ID=2231123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US161714D Expired - Lifetime US161714A (en) | Improvement in dampers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US161714A (en) |
-
0
- US US161714D patent/US161714A/en not_active Expired - Lifetime
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