Improvements in Smoke Consumers for Furnaces.
Year: 1899

page_text: Date of Application, 25th Nov., 1899-Accepted, 20th Jan., 1900
COMPLETE SPECIFICATION.
Improvements in Smoke Consumers for Furnaces.
I, JACOB ORMERON, Mechanical Engineer, of 135, W. 41st Street, New York
City, United States of America, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention relates to an improvement in smoke consumers or preventers,
and its object is to provide a device or attachment that is operated automatically
and is not dependent upon the operator for its positive action.
In the accompanying drawings which illustrate my invention.
Figure 1 is a front view.
Figure 2 is a partial elevation and longitudinal section.
Figure 3 is a front view showing a slight modification.
Figure 4 is a longitudinal section of the modification; and
Figure 5 is a detail view.
A represents a dash-pot mounted upon the rod a which is secured to the front
wall of the boiler B by means of the extending arms a
The steam-pipe C is provided with a valve and is also fastened to the front
wall of the boiler and terminates at the fire-box in a steam jet D which is adapted
to throw a jet of steam into the fire-box E.
The steam valve c is connected by means of the arm to the piston rod a² of
the dash-pot A. Extending horizontally along the front of the boiler and mounted
in the bearings f, is a rod F upon which is mounted a depending arm G. Con-
nected to this depending arm is a rod H which also connects at its upper end to
the arm c¹.
Fastened to the horizontal rod F is a pivotal arm I which has fastened to its
end by means of a hinged joint, the rod ¹. This said rod ¹ connects to the
door K by means of the double hinged joint at I¹.
A vertically revolving door L is mounted in the casing L' upon the door K.
Projecting from the door L is an arm which is attached to the lower end of a
lever M by means of the rod m. The said lever M is pivotally mounted upon an
arm m extending from the door K. The upper end of the lever M engages against
a pin n mounted upon the arm N which is securely fastened to the horizontal
rod F. The door L is formed with a ridge which is adapted to act as a counter-
balance. Fastened on the inside of the door K is a hot-air box 0, provided with
openings o along its lower end. The partition o¹ forming part of the door K
separating the hot air compartment 0 from the compartment formed by the
casing L', is provided with the opening of to allow the air to enter the hot air
compartment O.
The rod is composed of two sections, the upper portion 3 being cylindrical
in shape and is adapted to allow the lower portion it to move in it. The lower end
4 is connected to the door K by means of the hinge I¹.
The operation of my device is as follows:-The opening of the door K for
the purpose of coaling actuates the rod and forces up the pivotal arm I, thereby
turning the horizontal shaft F. The turning of the shaft F causes the rod H
to be forced upward, thereby drawing up the piston in the dash-pot and opening
CD071

page_text: the steam valve c, as indicated in Figure 2, which shows the door opened after
coaling operation. The arm N moves outward by the turning of the ro F and
the pin engaging against the upper end of the lever N acts to turn the door L,
thereby opening the compartment and allowing air to enter. The air enters
the compartment and passes through the opening of and is heated in its passage
through the compartment before it enters the fire-box through the openings o.
The steam ejected from the jet 1 upon the fire increases the combustion, thereby
preventing smoke while coal is being put on. When the door is closed, the air
is heated before it enters the fire chamber which further increases the combustion
and more effectively prevents smoke.
By the action of the dash-pot A, the steam valve c is gradually closed and the
rod F turned allowing the door L to be slowly closed. To regulate the time of
action, I provide a check valve a³ which is attached to the dash-pot and affords
means for controlling the action of the dash-pot so that the steam is not cut off
.or the door L closed entirely until the smoke has all been consumed.
In the modification shown in Figures 3, 4 and 5, I do away with the telescopic
rod and construct a fire-door as shown.
S
P² represents a rotary valve in furnace door: P³ counter-balance weight. Se-
cured to the rod F is a second depending arm R, the end of which is formed as a
fork and carries a horizontal pin S and pivoted dogs. The parts R and together
form what might be termed a "knuckle-lever." The arrangement of the dog
is such that it is free to swing inwardly but has its outward movement limited
by striking against the offset R of the arm R, Figure 5.
Projecting from the face of the door is an arm T which carries a bell-crank T¹.
The lower end of the arm which is part of the bell-crank T has connected to it
a rod t which is attached to a stud 2 on the face of the rotating valve on fire-door.
The upper arm of the bell-crank lever T is curved so as to lie over the hori-
zontal pin S.
When the door is opened for coaling, the door engaging with the dogs acts to
turn the rod F, thereby forcing up the piston in the dash-pot and when coaling is
completed and the door closed, the pin S engages with the bell-crank lever T¹
and acts to turn the rotary valve, thereby opening same and allowing air to enter
the fire chamber.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:.
1. The combination, in a smoke consuming device, of steam injectors, an air
valve formed upon the fire-door, a lever pivotally mounted upon the frame of the
fire-door and connected to the said air valve and actuated by means of an arm
mounted upon a horizontal rod or shaft revolubly mounted on the front of the
boiler, a dash-pot also fastened to the front of the boiler, said dash-pot being
adapted by means of suitable rods and connecting arms, to open steam valves
and actuate or turn the said horizontal rod, and a check valve fastened upon said
dash-pot and employed as a means for regulating the action of said dash-pot and
mechanism controlled by same, substantially as described.
2. The combination, in a smoke consuming device, of steam injectors, an air
valve formed upon the fire-door and actuated by a lever pivotally mounted upon
the frame of the fire-door and in turn actuated by means of an arm mounted
upon a horizontal rod revolubly mounted on the front of the boiler, a dash-pot
fastened on the front of the boiler and adapted, by means of suitable rods and
connecting arms, to actuate the mechanism, a telescopic arm connected by means
of double-hinged joints to the aforesaid horizontal rod and to the fire door, the
said telescopic arm being adapted to turn the aforesaid shaft when the fire door
is opened, thereby throwing up the piston of dash-pot, and starting the mechanism
in operation, and a hot air box provided with suitable openings and fastened to
the inside of the fire-door, said hot air box being adapted to heat the air in its

page_text: passage through same to the fire-box or combustion chamber, substantially as
described.
3. The combination with the herein described device, of a telescopic rod or
nrm connected to the fire-door and horizontal operating rod of the device and
adapted to start the mechanism in operation when the fire-door is opened, an air
chamber fed upon the fire-door, a door or closing blind adapted to cut off the
entrance of air through said chamber and actuated by suitable arms and levers
in conjunction with the aforesaid operating rod, a ledge formed upon the lower
end of said door or blind and adapted to act as a counter balance for said door
or blind when in operation, and a hot-air box fastened upon the inside of the
fire-door and employed to heat the air before it enters the fire-box or combustion
chamber, substantially as described.
4. In a smoke consumer embodying the furnace door, steam jet valve, dash-pot
which opposes the steam-jet valve-closing-apparatus, and a knuckle-lever mounted
in front of the door upon a rod having a crank connection with the dash-pot and
valve and which is operated by the opening of the furnace door to open the steam
jet valve but knuckles under without operating to close the valve when said door
is shut a weighted pressure device mounted on said door which operates
mechanism adapted to close said steam jet valve against the resistance of the
dash-pot when the furnace door is shut, substantially as described.
5. In a smoke consumer, the combination of the furnace door, steam jet valve,
dash-pot which opposes the steam-jet-valve-closing apparatus, and a knuckle-
lever which is connected to a rod journaled in the front of the furnace and said
rod having a crank carrying a vertical rod pivoted to a link connected to the steam
valve and said dash-pot plunger, and is operated by the opening of the furnace
door to open the steam jet valve but knuckles under without closing the valve when
said door is shut, together with a curved bell-crank arm mounted on said door
and engaging the valve-actuating apparatus when the door is shut and a weight
tending to turn said bell-crank in a direction to close said valve, substantially
as described.
6. In a smoke consumer, the combination of the furnace door, steam jet valve,
dash-pot which opposes the steam-jet-valve-closing apparatus and a knuckle lever
projecting in front of the said lever which is operated by the opening of the
furnace door to open the steam jet valve but knuckles under without closing the
valve when said door is shut, means for operating the said lever with relation to
the steam jet valve and dash-pot and with a curved bell crank arm mounted on
said door and engaging the valve actuating apparatus when the door is shut, and
a weight tending to turn said bell-crank in a direction to close said valve, together
with an air valve and connections whereby the closure thereof is controlled by
said bell-crank, substantially as described.
Dated this 25th day of November 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.