US177280A - Improvement in ventilators - Google Patents
Improvement in ventilators Download PDFInfo
- Publication number
- US177280A US177280A US177280DA US177280A US 177280 A US177280 A US 177280A US 177280D A US177280D A US 177280DA US 177280 A US177280 A US 177280A
- Authority
- US
- United States
- Prior art keywords
- improvement
- ventilators
- domes
- robinson
- ventilator
- 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
- 238000010276 construction Methods 0.000 description 4
- 241000282619 Hylobates lar Species 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
Definitions
- Patente-d May 9,1876'.
- the gure l of the drawings is a representation of a transverse vertical section.
- A represents the top dome and B the lower dome, which latter is provided at the. bottom with a pipe or col lar, C.
- flanges a a At the top edge of the lower dome B, and at the bottom edge of the upper dome A, are projecting flanges a a, which may be either straight or curved, and the two domes are separated by means of brackets D D. These l.
- a ventilator having top and bottom l domes A B, the flanges a a, projecting from the edges of both domes, as shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Description
A. J. ROBINSON.
VENTILATOR.
Patente-d May 9,1876'.
mf VEJVTOR @Mw WVQMMM r www Attarney?,
NJETERS. PHOTO-LITHOGRAPNER. WASHINGTONy D C.
UNITED STATES `PATENT OFFICE. l
ANDREW J. ROBINSON, OF TROY, NEW YORK.
IMPROVEMENT IN VENTILATORS.
Specification forming part of Letters Patent No. 12"2',280,A dated May 9, 1876 application led April 8, 1876.
To all whom it may concern:
Be it known that I, ANDREW J. ROBINSON, of Troy, in the county of Rensselaer and State of New York, have invented a new and valuable Improvement in Ventilators; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.
The gure l of the drawings is a representation of a transverse vertical section.
The nature of my invention consists in the construction and arrangement of a ventilator as an improvement upon a similar device for which Letters Patent have been recently granted to me.
. In the annexed drawing, A represents the top dome and B the lower dome, which latter is provided at the. bottom with a pipe or col lar, C. At the top edge of the lower dome B, and at the bottom edge of the upper dome A, are projecting flanges a a, which may be either straight or curved, and the two domes are separated by means of brackets D D. These l. In a ventilator, having top and bottom l domes A B, the flanges a a, projecting from the edges of both domes, as shown and described.
2. 'lhe brackets D D, constructed as shown,
in combination with the domes A B and surrounding shield Gr, substantially'as herein set forth.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
J. B. SINsAEAUeH, Gr. H. PERRY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US177280A true US177280A (en) | 1876-05-09 |
Family
ID=2246687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US177280D Expired - Lifetime US177280A (en) | Improvement in ventilators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US177280A (en) |
-
0
- US US177280D patent/US177280A/en not_active Expired - Lifetime
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