close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2107504

код для вставки
_ 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
2,107,504
DRAFT PROMOTER FOR FURNACES
Filed 001.. 9, 1956
3 Sheets-Sheet 2
Feb, 8, 1938.
A A_ REA
,
2,107,504
DRAFT PROMOTER FOR FURNACES
Filed Oct. 9, 1936
5 Sheets-Sheet 5
_
_Aiiorneys
Patented Feb. 8, 1938
2,107,504
* UNITED STATES
PATENT OFFICE
2,107,504
DRAFT PROMOTER FOR FURNACES
Arthur A. Rea, La Grande, Oreg.
Application October 9, 1936, Serial No. 104,884
1 Claim. (Cl. 230-134)
This invention appertains to‘ a blower for fur
rotor l5 serve to retain the rotor in proper posi
nace constructions, and more particularly to a tion
on the shaft.
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 speci?cation.
In the drawings:—v
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.
VThe 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 radi
ally disposed arms 2| radiating from a common
central point 22 and are provided with suitable 10
openings 23 whereby the arms can be riveted to
the bottom side of the conical-shaped rotor 15
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 20
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
Fig. 4 represents a side elevational view of the
rotor.’
25 Fig. 5 represents a perspective view of the
blade carrier of the rotor.
Fig. 6 represents a vertical sectional view
draw air upwardly through the shell 9 and force
the same outwardly through the openings l9 into 25
the various conduits of the hot air system.
30 merals designate like parts, it can be seen in
invention in speci?c terms, it is to be under
stood that numerouschanges in the shape, size
and materials may be resorted to without de- 3
through the rotor spider.
Referring to the drawings wherein like nu
r
Fig. 3, that numeral 5 represents generally a
furnace which consists of the ?re box 6, the ash
box 1 and the heating drum 8. Spatially dis
' posed around the furnace structure 5 is the shell
35 9 which has'the air inlet conduit I0 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
?ange 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 5 through the apex of which the
shaft 16 is disposed. The shaft l6 extends down
wardly 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
While the foregoing speci?cation sets forth the .
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 35
being of inverted conical shape, a frame struc~
ture 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 40
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 por- 45
tions of the rotor and frame respectively, and
means at the upper end of the shaft to rotate
said rotor.
ARTHUR A. REA.
Документ
Категория
Без категории
Просмотров
0
Размер файла
215 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа