US11640A - Improvement in chimney-caps - Google Patents
Improvement in chimney-caps Download PDFInfo
- Publication number
- US11640A US11640A US11640DA US11640A US 11640 A US11640 A US 11640A US 11640D A US11640D A US 11640DA US 11640 A US11640 A US 11640A
- Authority
- US
- United States
- Prior art keywords
- chimney
- caps
- cap
- valves
- 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 10
- 239000008001 CAPS buffer Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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
- the nature of my invention consists in so constructing chimney-caps as to close the surface presented to the current of air, and at the same time form an egress for the smoke to escape on the opposite side, as hereinafter described.
- Figure l represents a viewin perspective of a chimney-cap secured to a fragment of a chimney.
- Fig. 2 is a vertical section of the same, taken through the line x t ot' Fig. l.
- A represents the cap, which may be constructed of eithercast or sheet metal, as found expedient.
- apertures c On the four opposite sides of this cap, as represented in the accompanying drawings, are formed apertures c, embracing nearly the entire side of the cap. Tothese apertures are tted, respectively, doors or valves E, hinged on their lower sides at j', so that the egress for the smoke may be at the top of the cap, and thus prevent the undue accumulation in the cap.
- I In order that the valve opposite to that which is closed by the current of air shall open to permit the escape of the smoke, I have connected them in pairs by cross-rods c, which rods serve also to retain them in their proper upright position with respect to the cap.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Description
J. CLARK.
Chimney Cap.
'Patented sept'. 5,1854.
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UNITED STATES PATENT OFFICE.
JOHN CLARK, OF VASI'IINGTON, DISTRICT OF COLUMBIA.
IMPROVEMENT IN CHlMNEY-CAPS.
Specification forming part of Letters Patent No. 11,640, dated September 5, 1854.
To all whom it 11i/ty concern:
Be it known that I, JOHN CLARK, of the city and county of Washington and -District of Columbia, have invented a new and useful Improvement in the Construction of Chimney- Caps; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.
The nature of my invention consists in so constructing chimney-caps as to close the surface presented to the current of air, and at the same time form an egress for the smoke to escape on the opposite side, as hereinafter described.
The same letters indicate the same parts in both the figures.
To enable others skilled in the art to make and use my improved chimney-caps, I will proceed to a description of the same in detail.
Figure l represents a viewin perspective of a chimney-cap secured to a fragment of a chimney. Fig. 2 is a vertical section of the same, taken through the line x t ot' Fig. l.
A represents the cap, which may be constructed of eithercast or sheet metal, as found expedient. On the four opposite sides of this cap, as represented in the accompanying drawings, are formed apertures c, embracing nearly the entire side of the cap. Tothese apertures are tted, respectively, doors or valves E, hinged on their lower sides at j', so that the egress for the smoke may be at the top of the cap, and thus prevent the undue accumulation in the cap. In order that the valve opposite to that which is closed by the current of air shall open to permit the escape of the smoke, I have connected them in pairs by cross-rods c, which rods serve also to retain them in their proper upright position with respect to the cap. That these doors or valves shall assume a position When not acted upon by a current of air equidistant from the face of the cap, I have provided balance-Weights` D, which are secured to the lower sides of the valves E by rods e. rlhese weights may be arranged either on the exterior of the valve, as shown in Fig. 1, or on the interior, as represented in Fig. 2, or they can be dispensed with entirely by extending the lower end, as indicated by dots in Fig. l, making the valve a balance-valve. Thus it will be seen that when the valvesE are forced against the sides of the cap A, as indicated by the arrows, Figs. l and 2, the corresponding valves on the opposite sides, being connected in pairs byrods 0 will be thrown open to their extreme width, thus permitting the smoke free egress on the sides opposite to those receiving the blast. By thus connecting the valves in pairs it will readily be perceived that whether the valves are being acted upon by a current of air or have assumed by the weights D their respective positions equidistant from the faces ot' the cap, the amount of egress for the smoke will at all times be the same. I do not conne myself to any particular form, but would state that it may consist of as many sides as found desirable.
Having thus fully described my improved mode of constructing chimney-caps, what I claim therein as new, and desire to secure by Letters Patent of the United Stat-es, is as follows:
Disclaiming the invention ol' chimney-caps with pendent valves, I claim constructing chimneycaps having balance compensating valves E E E, Fig. l, with lever e and weight D, or its equivalent g g, together with the
Publications (1)
Publication Number | Publication Date |
---|---|
US11640A true US11640A (en) | 1854-09-05 |
Family
ID=2071976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11640D Expired - Lifetime US11640A (en) | Improvement in chimney-caps |
Country Status (1)
Country | Link |
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US (1) | US11640A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050064806A1 (en) * | 2003-09-22 | 2005-03-24 | Issod Craig S. | Chimney cover with extended plinth and deflector |
-
0
- US US11640D patent/US11640A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050064806A1 (en) * | 2003-09-22 | 2005-03-24 | Issod Craig S. | Chimney cover with extended plinth and deflector |
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