US135422A - Improvement in hot-air furnaces - Google Patents
Improvement in hot-air furnaces Download PDFInfo
- Publication number
- US135422A US135422A US135422DA US135422A US 135422 A US135422 A US 135422A US 135422D A US135422D A US 135422DA US 135422 A US135422 A US 135422A
- Authority
- US
- United States
- Prior art keywords
- hot
- air
- furnace
- improvement
- air furnaces
- 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
- 229920002456 HOTAIR Polymers 0.000 title description 18
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 241000287531 Psittacidae Species 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
Definitions
- G G is the outer shell of the furnace or radiator, and is cylindric in form, having an opening for the feeding-mouth of the furnace, which is not shown in the drawing, and the secondary draft-hole I at the back part, shown in Fig. 2.
- H II is the casing inclosing the furnace and confining the hot air, which is transmitted wherever it is wanted by the exit-tubes v m m.
- J is the ash-pit, It the base, 0 a support, and N N N N the feet of the furnace.
- K is an opening for the insertion of a reservoir or magazine when desired, which is always kept closed witha cap.
- M is the damper-rod which, through proper connections from the outside, regulates the damper F.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Description
'1. FRIDLEY, up
Hot-Air Furnaces.
NO. 135,422. Patented Feb.4,1873.
AM P/mm-umnsRAPn/c ca me (vegan/v51; macaw) w JACOB FRIDLEY, JR, OF CARLISLE, PENNSYLVANIA.
IMPROVEMENT IN HOT-AIR FURNACES.
Specification forming part of Letters Patent No. 135,422, dated February 4, 1873.
To all whom it may con-corn:
Be it known that I, JACOB FRIDLEY, Jr., of Carlisle, in the county of Cumberland and State of Pennsylvania, have invented certain Improvements in Hot-Air Furnaces, of which the following is a specification:
The nature and objects of my invention consist in the construction of a heating-furnace that is simple in form, easily put together, and all parts being accessible and presenting a large surface of heated metal to the air that is being heated.
Figure 1 is'a perspective view of my furnace, with the outer shell G cut away to show the internal structure. Fig. 2 is a horizontal transverse section, showing those parts of the furnace which are cut by the line as as drawn across Fig. 1, and dividing the draft-hole E in two equal parts.
Ais the firepot, which is made, in the usual manner, of cast-iron or tire-clay. B B B, &c., are a series of cylindric tubes, made of wrought or cast iron, and inserted air-tight in the bottom plate Q and the top plate P, having the top and bottom open for the circulation of air. 0 O G G is an air-chamber in the form of a horseshoe, also open at the upper and lower parts. The inner shell D D forms the cylinder or fire-place, and it is pierced by the directdraft hole E, which is provided with a damper, F. G G is the outer shell of the furnace or radiator, and is cylindric in form, having an opening for the feeding-mouth of the furnace, which is not shown in the drawing, and the secondary draft-hole I at the back part, shown in Fig. 2. H II is the casing inclosing the furnace and confining the hot air, which is transmitted wherever it is wanted by the exit-tubes v m m. J is the ash-pit, It the base, 0 a support, and N N N N the feet of the furnace. K is an opening for the insertion of a reservoir or magazine when desired, which is always kept closed witha cap. M is the damper-rod which, through proper connections from the outside, regulates the damper F.
The fire is kindled in the pot A, keeping the damper F open until it is in a fair state of coin bustion, when the damper is closed and the combustible gases are reverberated and forced to circulate through the radiator occupied by the tubes B B B, &c., and impinging on said tubes in their passage and completely heating and heating-surfaces extend from the top to the bottom of the furnace as low down as the lower part of the fire-pot, and in this manner utilizing all the heat; and the hot gases do not merely ascend and find an exit at' the top like in other hot-air furnaces, but are obliged to revert and circulate horizontally before they are sufiered to escape. By this means a vast extent of metallic surface is heated and presented to the in-rushin g air to be heated.
The cold air comes in below the base R and enters the tubes B B B, 850., and the hollow chamber 0 (l at their lower parts, and also circulates around the entire furnace, and is con ducted through the building by opening exittubes at m.
I prefer the circular form for my furnace, as described above, but I do not confine myself to this shape, as it may be made elliptical, square, or polygonal, and be nearly or equally effective as a heating apparatus.
I claim as my invention- 1. In a hot-air furnace, a series of simple hot-air tubes, B B, 820., in combination with a radiator through which the products of combustion circulate, passing around such airtubes, substantially as described.
2. The combination of a tubular radiator, through which the products of combustion circulate, and cylinder D D, inclosin g a fire-place, A, and a hot-air chamber, (J 0, between said radiator and cylinder, substantially as and for the purpose set forth.
JACOB FRIDLEY, JR.
Witnesses:
O. L. LOGHMAN, EDGAR L. SHRYOOK.
Publications (1)
Publication Number | Publication Date |
---|---|
US135422A true US135422A (en) | 1873-02-04 |
Family
ID=2204838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US135422D Expired - Lifetime US135422A (en) | Improvement in hot-air furnaces |
Country Status (1)
Country | Link |
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US (1) | US135422A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841134A (en) * | 1953-10-26 | 1958-07-01 | Stewart Warner Corp | Combustion heater sheet metal heat exchanger |
-
0
- US US135422D patent/US135422A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841134A (en) * | 1953-10-26 | 1958-07-01 | Stewart Warner Corp | Combustion heater sheet metal heat exchanger |
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