US2107504A - Draft promoter for furnaces - Google Patents

Draft promoter for furnaces Download PDF

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Publication number
US2107504A
US2107504A US104884A US10488436A US2107504A US 2107504 A US2107504 A US 2107504A US 104884 A US104884 A US 104884A US 10488436 A US10488436 A US 10488436A US 2107504 A US2107504 A US 2107504A
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United States
Prior art keywords
rotor
promoter
draft
furnaces
furnace
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Expired - Lifetime
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US104884A
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Arthur A Rea
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Priority to US104884A priority Critical patent/US2107504A/en
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    • 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
    • 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
    • F23L2700/00—Installations for increasing draught in chimneys; Specific draught control devices for locomotives
    • F23L2700/001—Installations for increasing draught in chimneys

Definitions

  • This invention appertains to a blower for furnace constructions, and more particularly to a furnace of the hot air type. r
  • the principal object of the invention is to 5 provide a blower for a hot air furnace wherein means is provided for circulating the hot air under force.
  • Another important object of the invention is to provide a blower for a hot air furnace where- 10 in hot air can be delivered under force through the agency of means which will not cost much to install on conventional hot air furnaces.
  • Figure 1 represents a top plan view of the furnace.
  • Fig. 2 represents a bottomplan view of the 20 dome with the blower therein.
  • Fig. 3 represents a vertical sectional view through the furnace.
  • Fig. 4 represents a side elevational view of the rotor.
  • Fig. 5 represents a perspective view of the blade carrier of the rotor.
  • Fig. 6 represents a vertical through the rotor spider.
  • numeral 5 represents generally a furnace which consists of the fire box 6, the ash box 1 and the heating drum 8. Spatially disposed around the furnace structure 5 is the shell 35 9 which has'the air inlet conduit I at its lower end.
  • the top of the shell 9 is provided with the dome l l which is provided with side wall portions l2 and a depending apron I 3 which rests upon 40 the upper edge of the shell 9.
  • An inwardly curved flange i4 is provided on the inside of the apron 13 so as to direct Warm air passing upwardly above the drum 8 toward the inverted conical shaped rotor I through the apex of which the shaft 16 is disposed.
  • the shaft l6 extends downwardly through the dome H and is supported in this position by the bearing l1.
  • Jamb nuts or the like l8 above and below the apex portion of the sectional view rotor l5 serve to retain the rotor in proper position on the shaft.
  • the dome H is provided with outlets l9 to hich pipes can be connected and through which air can be supplied to the various parts of a 5 building.
  • numeral 20 generally refers to a spider which consists of a plurality of radially disposed arms 2
  • Elongated transversely curved blades 24 are secured to the bottom side of the rotor l5 and 15 these blades increase in thickness outwardly in proportion to the pitch of the rotor l5.
  • a draft promoter comprising a rotor, said rotor being of inverted conical shape, a frame structure having diverged arm portions, means for securing the frame to the bottom side of the rotor, blades secured to the bottom side of the rotor, said means for securing the frame to the rotor and also serving to secure the blades to the rotor, the central portion of the said frame crossing the apex portion of the rotor, a shaft provided with bearing means and having its lower ends secured both to the apex and central portions of the rotor and frame respectively, and means at the upper end of the shaft to rotate said rotor.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Feb. 8, 1938. A. A. REA 2,107,504
DRAFT PROMOTER FOR FURNACES FilEd 061;. 9, 1936 5 Sheets-Sheei 1 Aiiomqeys Feb. 8, i938.
A. A. REA
DRAFT PROMOTER FOR FURNACES Filed 001.. 9, 1956 3 Sheets-Sheet 2 Feb, 8, 1938. A REA 2,107,504
DRAFT PROMOTER FOR FURNACES Filed Oct. 9, 1936 5 Sheets-Sheet 5 Aiiorneys Patented F eb. 8, 1938 UNITED STATES PATENT OFFICE DRAFT PROMOTER FOR FURNACES Arthur A. Rea, La Grande, Oreg. Application October 9, 1936, Serial No. 104,884
1 Claim.
This invention appertains to a blower for furnace constructions, and more particularly to a furnace of the hot air type. r
The principal object of the invention is to 5 provide a blower for a hot air furnace wherein means is provided for circulating the hot air under force.
Another important object of the invention is to provide a blower for a hot air furnace where- 10 in hot air can be delivered under force through the agency of means which will not cost much to install on conventional hot air furnaces.
These and various other important objects and advantages of the invention will become appar- 15 ent to the reader of the following specification.
In the drawings:
Figure 1 represents a top plan view of the furnace.
Fig. 2 represents a bottomplan view of the 20 dome with the blower therein.
Fig. 3 represents a vertical sectional view through the furnace.
Fig. 4 represents a side elevational view of the rotor.
5 Fig. 5 represents a perspective view of the blade carrier of the rotor.
Fig. 6 represents a vertical through the rotor spider.
Referring to the drawings wherein like nu- 30 merals designate like parts, it can be seen in r Fig. 3, that numeral 5 represents generally a furnace which consists of the fire box 6, the ash box 1 and the heating drum 8. Spatially disposed around the furnace structure 5 is the shell 35 9 which has'the air inlet conduit I at its lower end.
The top of the shell 9 is provided with the dome l l which is provided with side wall portions l2 and a depending apron I 3 which rests upon 40 the upper edge of the shell 9. An inwardly curved flange i4 is provided on the inside of the apron 13 so as to direct Warm air passing upwardly above the drum 8 toward the inverted conical shaped rotor I through the apex of which the shaft 16 is disposed. The shaft l6 extends downwardly through the dome H and is supported in this position by the bearing l1. Jamb nuts or the like l8 above and below the apex portion of the sectional view rotor l5 serve to retain the rotor in proper position on the shaft.
The dome H is provided with outlets l9 to hich pipes can be connected and through which air can be supplied to the various parts of a 5 building.
As shown in Fig. 6, numeral 20 generally refers to a spider which consists of a plurality of radially disposed arms 2| radiating from a common central point 22 and are provided with suitable openings 23 whereby the arms can be riveted to the bottom side of the conical-shaped rotor so as to reinforce the same.
Elongated transversely curved blades 24 are secured to the bottom side of the rotor l5 and 15 these blades increase in thickness outwardly in proportion to the pitch of the rotor l5.
Thus it can be seen, that when the motor 25 which is located on the top of the dome H is started, the belt 26 which is driven by a pulley of the motor and is trained over the pulley I! on the shaft l6, will drive the shaft l6 and rotor l5 so that the blades 24 will effect a pull and draw air upwardly through the shell 9 and force the same outwardly through the openings l9 into the various conduits of the hot air system.
While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerouschanges in the shape, size and materials may be resorted to without de- 3 parting from the spirit and scope of the invention as claimed hereinafter.
Having described the invention, what is claimed as new is:-
A draft promoter comprising a rotor, said rotor being of inverted conical shape, a frame structure having diverged arm portions, means for securing the frame to the bottom side of the rotor, blades secured to the bottom side of the rotor, said means for securing the frame to the rotor and also serving to secure the blades to the rotor, the central portion of the said frame crossing the apex portion of the rotor, a shaft provided with bearing means and having its lower ends secured both to the apex and central portions of the rotor and frame respectively, and means at the upper end of the shaft to rotate said rotor.
ARTHUR A. REA.
US104884A 1936-10-09 1936-10-09 Draft promoter for furnaces Expired - Lifetime US2107504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US104884A US2107504A (en) 1936-10-09 1936-10-09 Draft promoter for furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US104884A US2107504A (en) 1936-10-09 1936-10-09 Draft promoter for furnaces

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459424A1 (en) * 1979-06-18 1981-01-09 Zaniewski Michel DEVICE FOR VENTILATING PREMISES AND DRAWING FIREPLACES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459424A1 (en) * 1979-06-18 1981-01-09 Zaniewski Michel DEVICE FOR VENTILATING PREMISES AND DRAWING FIREPLACES

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