US129160A - Improvement in chimney-cowls - Google Patents
Improvement in chimney-cowls Download PDFInfo
- Publication number
- US129160A US129160A US129160DA US129160A US 129160 A US129160 A US 129160A US 129160D A US129160D A US 129160DA US 129160 A US129160 A US 129160A
- Authority
- US
- United States
- Prior art keywords
- chimney
- air
- cowls
- improvement
- passage
- 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
- 239000002184 metal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/10—Tops for chimneys or ventilating shafts; Terminals for flues wherein the top moves as a whole
Definitions
- This invention relates to an improved revolving chimney-cowl; and consists of 2. cylindrical or other-shaped vacuum-chamber, an air-passage, vanes, and a support upon which said cowl revolves.
- Figure 1 is a central vertical section of my device.
- Fig. 2 is ahorizontal cross-section on line as w of Fig. 1
- Fig. 3 is a plan view of the step-bar in the chimney upon which the spindle supporting the chimney rests.
- the letter A represents a square, quadrilateral, or other-shaped air-passage, having a broad, flaring, or funnel-shaped mouth, and provided at its rear with vanes f g, arranged above and below. Between the top'and bottom of this air-passage are secured two or more V-shaped pieces of metal, 0 D.
- a is a tube, to which the air-passage isrigidly attached.
- a spindle, c is secured in this tube by cross-bars d, and a step, e, (see Fig. 3,) is provided in the chimney, in which the lower end of the spindle finds a bearing, the whole being so arranged as to allow the cowl to freely revolve.
- a tube should be arranged in or over the chimney of such size that tube a may fit in or over it, and in such manner as to allow freedom of motion to the cowl.
- the step-bar 6 may be fixed in this tube instead of in the v chimney.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
F. w. MULVANY. Chimney-Cowls. No, 129,160, Patented July 16, 1872.
Inventor:
UNITED STATES PATENT QF-FIGE.
FRANK W. MULVANY, OF NEW YORK, N. Y., ASSIGNOR TO NEEFUS GO- OPERATIVE MANUFACTURING COMPANY, OF SAME PLACE.
IMPROVEMENT IN CHIMNEV-COWLS.
Specification forming part of Letters Patent No. 129,160, dated July 16, 1872.
Specification describing an Improved Chimney-Oowl, invented by FRANK W. MULVANY, of the city of New York, in the county and State of New York.
This invention relates to an improved revolving chimney-cowl; and consists of 2. cylindrical or other-shaped vacuum-chamber, an air-passage, vanes, and a support upon which said cowl revolves.
In the drawing illustrating my invention, Figure 1 is a central vertical section of my device. Fig. 2 is ahorizontal cross-section on line as w of Fig. 1, and Fig. 3 is a plan view of the step-bar in the chimney upon which the spindle supporting the chimney rests.
The letter A represents a square, quadrilateral, or other-shaped air-passage, having a broad, flaring, or funnel-shaped mouth, and provided at its rear with vanes f g, arranged above and below. Between the top'and bottom of this air-passage are secured two or more V-shaped pieces of metal, 0 D. a is a tube, to which the air-passage isrigidly attached. A spindle, c, is secured in this tube by cross-bars d, and a step, e, (see Fig. 3,) is provided in the chimney, in which the lower end of the spindle finds a bearing, the whole being so arranged as to allow the cowl to freely revolve. A tube should be arranged in or over the chimney of such size that tube a may fit in or over it, and in such manner as to allow freedom of motion to the cowl. The step-bar 6 may be fixed in this tube instead of in the v chimney. One, D, of the pieces of metal 0 D,
is so arranged in the air-passage A as to surround the opening of the tube a, and the other piece, (3, has its apex just at the edge of said opening, and is also partly inclosed by the other piece D. These pieces form a vacuumchamber, D, in the air-passage, and their office is to protect the part a, communicating with the chimney, from the direct action of the air and to create a draught up the chimney. By means of the vacuum chamber B the chimney is protected from the evil effects of fitful gusts of wind, the draught up the chimney is stronger and steadier, the foul air of rooms will be more rapidly drawn out, and the fires kept brighter. The direction of the air through A is indicated by the arrows, and, as will be understood, as the current passes the ends of piece D the foul air will be drawn up the chimney and out of the vacuum-chamber B, thus creating a draught.
What I claim as my invention is The combination, in a revolving cowl, of an air-passage, A, having a flaring mouth, strips 0 D, vacuum-chamber B, and a chimney connection, when the parts are constructed, ar-
ranged, and operate as herein shown and described.
FRANK W. MULVANY.
Witnesses:
R. E. DEYO, CHAS. SEIBERT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US129160A true US129160A (en) | 1872-07-16 |
Family
ID=2198578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US129160D Expired - Lifetime US129160A (en) | Improvement in chimney-cowls |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US129160A (en) |
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0
- US US129160D patent/US129160A/en not_active Expired - Lifetime
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