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Патент USA US2110364

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March 8, 1938.
,
c, E, |DEN
_ 2,110,364
AUTOMATICFLUE BLOWER
Original Filed Aug. 6, 1928
3 Sheets-Sheet 1
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Inventor
Charles E .146”
BJQMM
Attarnqy
March 8, 1938.
, c. E. lDEN
2,110,364
AUTOMATIQ FLUE BLOWER
Original Filed Aug. 6, 19-28
5 Sheets-Sheet 2
7719.2.
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Inventor
ll’harlé Gillian
Marc
8, 1938.
c, E, [DEN
-
AUTOMATIC
FLUE
\_ 2,110,364
BLOWER
‘
Original Filed Aug. 6, 1928
7117.5.
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'3 Sheets-Sheet 3
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Inventor ‘
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Charles 2.162612 I
Attorngy
Patented Mar. 8, 1938
2,1103%
usirso, STATES
PATENT I QFFEQE
2,110,364
AUTOMATIC FLUE BLOWER
Charles E. Iden, Newark, Ohio, assignor to Dia
mend Power Specialty Corporation, Detroit,
Mich, a corporation of lVIichigan
Application August 6, 1928, Serial No. 297,772
Renewed January 22, 1937
10 Claims.
The present invention pertains to new and use
ful improvements in soot blowers and the same
relates more particularly to an automatic mech
anism for cleaning by ?uid blast the heat ex
<5 change surfaces of a boiler, which heretofore has
necessitated considerable time and expense in
the removal of soot and other foreign matter
which obviously reduces the efficiency of the
boiler.
'10
The present invention presents several novel
improvements over Patent No. 1,561 004 issued to
John T. Lemon on November 10, 1925. The prin
ciple involved in this invention is substantially
the same as underlying the subject matter in the
15 above patent, yet the same accomplishes numer
oust objects and advantages thereover.
An important object of this invention is to pro
vide a novel means whereby the nozzles through
which the air blasts are delivered are oscillated
20 and wherein means associated therewith permits
the more constant e?icient operation thereof than
in devices similar in nature.
Another primary object resides in the provision
of an electro-magnetically operable shut off valve
25 in the ?uid supply line operable in synchronism
with the means for actuating the nozzle whereby
the air supply will be shut off during such a cycle
of operation.
30 provision is made for means whereby a closed
circuit will be maintained to the electro-mag~
netically operated shut off valve during a prede
termined interval of time, which interval of time
is regulated by a dash pot structure in operable
‘
The present mechanism also presents means
whereby the movement of the nozzle is reversed
so as to con?ne the blasts of ?uid within a cer—'
tain predetermined area.
40
In the drawings:
through’ the step down gear mechanism in mesh
with the motor for driving the same,
‘
Figure 6 is an end elevation of the step down
unit,
'
~
Figure ‘7 is a sectional view through one of the 6
ball bearing eccentrics employed for‘driving the
nozzle,
Figure 8 is a sectional’ view of the eccentrics at
substantially right angles to the section of Fig
ure '7, and
10
Figure 9 is a view similar to Figure '7 showing
a slightly modified form of construction.
Referring to the drawings wherein like numer
als designate like parts one end of a conventional
boiler structure is shown in the accompanying l5
drawings and designated by A.
The usual water tubes are located within the
boiler in the usual spaced manner and between
which the smoke from the ?rebox passes for
heating the water circulating therethrough. A 20
sleeve 2 is ?xed to the inner end of a blower pipe
l having a nozzle Ia and is provided with an ex
ternal circumferential extending ?ange 3.
A packing gland '5 is keyed to the sleeve 2 by
a set screw 4a which passes through a slot 4*) in
the hub of the packing gland while a coiled spring
5 is interposed between the ?ange 3 and said
packing gland.
_
Among the remaining objects of the invention
35 association with such closing means.
(Cl. 122—392)
_
Referring now to Figure 2, an air storage tank
6 is replenished by a pipe line ‘i extending from a
compressor or the like. Any number of such
storage tanks may be provided for supplying air
through conduits 8 to a valve structure 9. This
structure consists of a body I 0 having a relatively
thick wall H at one end thereof.
. A shaft I2 is journaled through the wall I I and
has a disc valve element l3 keyed to its inner
end and adapted for snug contact with the inner
side of the said wall H.
The ratchet wheel I4 is keyed to the outer end
of the shaft I2, while the valve element i3 is
formed with ,a port l5 registrable with ducts l6
Figure 1 represents a side elevation partly in
section of a conventional boiler structure equipped
with the novel automatic blower mechanism,
Figure 2 represents diagrammatically and in
45 partial sectional View certain details of the in
vention.
Figure 2A is a diagrammatic fragmentary ele
vational view of a portion of the structure shown
in Figure 2.
wheel l8 rotatably journaled thereon.
50
Figure 3 is an outer side elevation of the ratchet
is provided with a collar l9 at one side, while .an
means employed for oscillating the nozzle,
Figure 4 is a fragmentary view showing the
ratchet means in sectional View and taken sub~
stantially on the line 4—4 of Figure 3,
55; Figure 5 is an enlarged vertical sectional view
annular wall 20 projects concentrically from the
opposite face of the wheel and is adapted to
extending through the wall ll.
Pipes~ l1 connect at one of their ends to the
wall II and have communication with the ducts
it‘ while their opposite ends have communica
tion with the blower pipes I,
The nozzle end of each pipe I‘! has a ratchet
The Wheel
engage over the ?anged end of the sleeve-2 and
a portion of the packing gland 4 in the manner
as shown in Figure 4.
55
2,110,864
2 .
Q The wheel 18 is rigidly connected to the packing
gland 4 by the employment of tie bolts 2|. A
‘lever 22 has one end journaled to the collar l9
while a pawl 23 is pivoted to the lever 22 slightly
outwardly from thelperiphery of the wheel I8.
The pawl is of arcuate shape and tapered at
'10
15
20
25
30
35
40
lever 69 which is provided with a pawl 10 engage
able with the teeth of the ratchet wheel l4.
The time limit relay ‘H has a plunger 12 oper
able within liquid or suitable matter within a
dash pot. A rod 13 extends upwardly from the
plunger and above the top of the dash pot, the
each end, the respective ends being alternately same being provided with a head 14.
The top of the dash pot is provided with a
engageable with the teeth of the wheel l8. A lug
24 projects outwardly from the pawl 23 and across pair of spaced upstanding arms 15—l5 which
are substantially V-shaped at their upper ends. 10
the'outside face of the ratchet wheel I8 for en
A lever 16 is pivoted adjacent one end to the top
gagement with the pintles 25-—25.
These pintles may be engaged in any pair of of thedash pot ‘II and this end portion is adapted
the openings 26 to limit the oscillatory movement to engage in an elongated notch 13*‘ in the plunger
of the nozzle I. An arm 21 projecting from the rod 13. A spring 168 tends to hold the ‘lever 13
pawl 23 in an opposite direction from the lug 24 in .a substantially horizontal position so that this 15
lever does not retard downward movement of
has an equalizing spring 28 connected thereto.
For actuating the nozzle and other phases of the plunger rod 13 and is also always in position
the invention, a motor 29 is supported upon .a to be engaged by a lug 11 about to be described.
suitable housing 30 is geared by a pinion 3| to a . It will be apparent that the spring permits a
gear 32 on a drive shaft 33 journaled through suf?cient upward movement of the lever to permit
the housing 30. A worm 34 keyed to the shaft passage of lug 11 past the lever during upward
movement of the lug.
33 meshes with a gear 35 on a countershaft 36
A contact member 18 on the rod 68 is .adapted
for driving a worm 31 in mesh with a grooved
to contact with the contact 19 located adjacent
gear 38 on a supplemental shaft 40.
‘
A disk 4| at one end of the shaft is provided to the rod 68. In the operation of the present
mechanism, the motor 29 drives the gears dis
with an eccentrically disposed pin 42. An elon
closed in Figure 5 which reduce theoriginal speed.
gated shaft 43 is journaled through bearing mem
bers 44 secured to the boiler wall in the manner of the armature shaft so as to slowly rotate the
shaft 43.
as shown in Figure 1.
' The'slow rotation of the cams 49 is converted
The ratchet wheel keyed to one end of the shaft
43 is designated by numeral 45 and is operable into reciprocatory movement of the connecting
between the yoked end 46 of a connecting rod rods 54. The pawl 23 will cause the movement
41, the opposite end of the connecting rod 41 of the ratchet l8 and consequently the nozzle l
being connected to the eccentrically disposed until the lug 24 engages one of the pintles 25,
whereupon the position of the pawl 23 is reversed,
pin 42.
Apawl 48‘ is pivoted between the legs of the obviously resulting in the movement of the ratchet
yoke 46 and is adapted for normal vengagement
[8 in the opposite direction.
with the teeth of the ratchet wheel 45. At cer
tain spaced intervals on the shaft 43 eccentrics
In this manner the ?uid blast is delivered over
a certain predetermined area which may be varied
49 are arranged.
a
The structure consists of a hub 58 eccentri
cally mounted on the shaft 43 and the rim 5 I, the
rim and the hub being formed with grooves to
provide a raceway for the ball bearing 52. A boss
45 53 is formed on the rim 5| andis formed with the
split recess to receive one end of the connecting
rod 54.
The opposite end of the connecting rod 54 is
adapted to be connected to the free end portion
.50 of the lever 22 in the manner as shown in the
drawings.
I
'
_
'Interposed between the valve body I0 and the
air supply conduit 8 is a valve body 55 provided
with a partition 56 formed with a valve seat there—
55 in. A; piston 51 preferably provided with suit
able packings is operable within the valve body
55 above the partition 56 and is provided with a
depending tube 58.
*
This tube depends below the opening in the
60 partition 56 and is provided with a valve structure
59 at its lower end seatable on the partition 56.
A housing 6|] is arranged upon the valve body
55 and has a solenoid 6| located therein.
A valve
memberBZ is normally ‘seated within the lower
65 end' of ‘the tube 58 by the tension of the spring
63. A stem 64 extends from the valve member
62 and has its free end disposed within the mag
netic ?eld of the solenoid 6|.
On the shaft’ 43 the disk 65 is provided with a
70 plurality of pintles 66 projecting at one side there
These‘ pintles are adapted to successively
. of.
engage the foot 61 of an elongated rod 68 which
has a bearing in a suitable guide bracket 68“.
75 The upper end of the rod .68 is connected ‘to a
»
i
by interchanging the pintles 25 with respect to
the openings 26.
‘
'
The rotation of disc 65 will effect an elevation
of rod‘ 68 by one of the pintles 66 and will effect
a movement of ratchet wheel l4 to register port
l5 of valve l3 with one of the ducts I6 for sup
plying cleaning ?uid to one of the blower pipes.
During this movement of the valve I3, valve 59
will be closed, by virtue of the fact that contacts
18 and 19 are arranged to be out of engagement
at this time.
As the particular pintle passes from beneath
the foot 81; the connecting rod '68 will drop, at
which time contact 18 ‘will engage contact 19
and rod 13 will be elevated by lever 16 to close
the circuit between contacts 15-45. Thus a
circuit will be closed through the solenoid 6| to
effect an opening of small valve 62 which will
permit air to pass to a point above the piston 51
whereby the main valve will be opened.
Obviously, when the main valve is opened, air
will pass'to the body I0 and through one of the
pipes H to one of the blower pipes I. The device
‘H constitutes a timingmechanism for limiting the
open position of main valve 59 to a predetermined
time interval. Thus with the rod 68 in its lower
most position and member 14 bridging the gap be
tween contacts l5—-15, rod ,13 will move slowly
downwardly, being retarded in its movement by
the substance in ‘the dash pot. Movement of the
rod 13;.m'ay be regulated as desired and after a
predetermined time interval member 14 will have
moved su?iciently to break the contact between
members 15-—'l5 to thus de-energize the solenoid
and permit valve 52 to close. The pressure above
the pistonrwill slowly be relieved whereupon the 15
3
2,110,364
pressure of the air will close the main valve to cut
off the supply of air to the body In before the
next actuation of rod 68.
The contacts 18 and 19 provide means for in
suring a breaking of the circuit through the sole
noid upon raising of the rod 58 in the event that
movement of the rod 13 has been retarded to too
great an extent, while valve 59 controls the pas
sage of air to the body It) so that air is supplied
10 to each blower pipe for a portion only of the time
that this blower pipe is connected to the body It]
by the valve l5.
In Figure 9 a slightly modi?ed form, of con
struction is shown which may be conveniently
15
substituted for the eccentric hubs 50. Referring
then more particularly to this ?gure of thedraw
ings, it will be noted that there is mounted on
the shaft 43’ a plurality of cams 90 which are
spaced longitudinally of the shaft in a manner
20 similar to the hubs 50. Each rod' 54’ is provided
at its lower end with a cup-shaped socket 80 in
which is mounted a ball 8| arranged to engage the
periphery of the cam‘, as clearly illustrated in the
drawings. Thus the rods 54' are reciprocated upon
25 rotation of the shaft 43’ by virtue of the engage
ment of the cams 90 with the balls 8|.
For the sake of illustration, the invention has
been described as being incorporated in a device
for cleaning boilers. It will be understood, how
30 ever, that the inventive principles may be in
corporated in devices for cleaning apparatuses
similar to boilers, and it is to be therefore under
stood that the term “boiler”, wherever used
throughout the speci?cation and claims, is to be
35 construed as meaning a ?uid heater or heat trans
40
cording to a desired sequence, a movable shaft,
mechanical connections between said shaft and
blower pipes for moving the latter upon move
ment of said shaft, and a step by step operating 10
connection between said valve and said shaft
whereby said valve is actuated with a step by
step movement in timed relation to the move
ment of said blower pipes upon movement of said
shaft.
15
6. In combination, a plurality of rotatable
blower pipes, a rotatable shaft, mechanical con
nections between said shaft and blower pipes for
rotating the latter upon rotation of said shaft, a
valve for controlling the flow of cleaning ?uid to 20
said blower pipes according to a desired sequence,
and a mechanical connection between said shaft
and said valve arranged to impart a step by step
movement to the valve upon rotation of said
shaft.
25
7. In combination, a plurality of rotatable
blower pipes, a rotatable shaft, mechanical con
nections between said shaft and blower pipes for
actuating the latter upon rotation of the shaft,
a valve for controlling the ?ow of cleaning ?uid
to said blower pipes, means for actuating said
valve upon rotation of said shaft, and means ac
tuated by said last mentioned means for limiting
the period of supply of cleaning ?uid to said
blower pipes to a predetermined time interval.
8. In combination, a plurality of rotatable
blower pipes, a shaft disposed adjacent said blow
er pipes, means for rotating said shaft, a plural
fer apparatus of any character, while the term
“boiler cleaner” is to be construed as meaning a
cleaner for any such type of apparatus.
Having thus described my invention, what I
ity of eccentrics mounted on said shaft one of said
claim as new is:
eccentrics being provided for each blower pipe, 4:0
_
1. In combination, a movable blower pipe, a
valve for controlling the ?ow of cleaning ?uid to
said blower pipe, means for moving said blower
pipe and for actuating said valve, and means con
45 trolled by said last mentioned means operating to
cut off the supply of cleaning ?uid to said valve
during actuation of the valve.
2. In combination, a plurality of movable blow
er pipes, a header for supplying cleaning ?uid to
50 said blower pipes, a valve for successively placing
each of said blower pipes in communication with
said header, means for moving said blower pipes
and for imparting a step by step movement to
said valve and means actuated by said last men
55 tioned means operating to cut off the supply of
cleaning ?uid to said valve during operation of
said valve.
3. In combination, a plurality of blower pipes,
a valve for controlling the ?ow of cleaning ?uid
to said blower pipes, means for actuating said
valve, and means controlled by said last men
tioned means for limiting the period of supply of
cleaning ?uid to each of said blower pipes to a
means including a rod connecting each eccentric
to its respective blower pipe, each rod being so
connected to its respective blower pipe as to im
part a step by step movement to the blower pipe
upon rotation of the shaft, a header for supply 45
ing cleaning ?uid to said blower pipes, a dis
tributing valve for successively placing said blow
er pipes in communication with said header,
means including a movable member for actuat
ing said distributing valve from said rotatable
shaft, and an auxiliary valve controlling the ?ow
of cleaning ?uid through the header to the dis
tributing valve controlled by said movable mem
ber.
9. In combination, a movable blower pipe, a
valve for controlling the ?ow of cleaning ?uid to
said blower pipe, means for moving said blower
pipe and for periodically actuating said valve,
and means for limiting the supply of cleaning
4. In combination, a plurality of blower pipes,
a valve for controlling the flow of cleaning ?uid
to said blower pipes, means for actuating said
?uid to said valve to the periods when the valve 60
is not being operated.
10. In combination, a plurality of movable
blower pipes, a valve for successively supplying
cleaning ?uid to said blower pipes, means for
moving said blower pipes and for periodically ac 65
tuating said valve, and auxiliary means operating
to limit the supply of cleaning ?uid to said valve
valve, and means including an electrically ac
to periods when the latter is not being actuated.
predetermined time interval.
65
means for controlling the ?ow of cleaning ?uid to
said blower pipes independently of said ?rst men
tioned valve.
5. In combination, a plurality of movable blow~
er pipes, a distributing valve for controlling the
?ow of cleaning ?uid to said blower pipes ac
tuated valve controlled by said ?rst mentioned
<
CHARLES E‘. IDEN.
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