US879453A

US879453A - Smoke-consumer and artificial draft.

Info

Publication number: US879453A
Application number: US33119506A
Authority: US
Inventors: Andrew H Ford
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-08-18
Filing date: 1906-08-18
Publication date: 1908-02-18
Anticipated expiration: 1925-02-18

Description

' No. 879,463. PATENTED FEB. 18,1908

A. H, FORD. SMOKE CONSUMER AND ARTIFICIAL DRAFT.

' APPLICATION FILED AUG. 18, 1906.

ms NORRIS PETERS co.. WASHINGTON, D. Q

UNITED STATES PATENT OFFICE.

ANDREW H. FORD, OF WESTVILLE, TEXAS, ASSIGNOR OF ONE-HALF TO WILLIAM E. PATTERSON, OF LAKE CHARLES, LOUISIANA.

SMOKE-CONSUMER AND ARTIFICIAL DRAFT.

$pecification of Letters Patent.

Patented Feb. 18, 1908.

Application filed August 18. 1906. Serial No. 331-195. I

To all whom it may concern:

Be it known that I, ANDREW H. FORD, a citizen of the United States, residing at VVestville, in the county of Trinity and State of Tex as, have invented a new and useful Smoke- Consumer and ArtificialDraft, of which the following is a specification.

The invention relates to improvements in smoke consumers.

The object of the present invention is to enabling the heat within the furnace to be maintained at a sufficiently high temperature to consume the smoke and some of the other gaseous products of combustion, whereby smoke is prevented and the amount of fuel consumed is materially lessened.

A further object of the invention is to provide means for producing the necessary draft within a steam furnace without admitting cold 'air in suflicient quantities to reduce the temperature to a pointbelow that at which smoke and other gaseous products are consumed.

Another object of the invention is to provide means for admitting steam into the furnace for producing the necessary draft without filling the fire box full of steam, and there by choking or smothering the fire.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully.

described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended; itbeing understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawing :Figure 1 is a vertical sectional view of a steam furnace provided with a smoke consuming device, constructed in accordance with this invention. Fig. 2 is a plan view, the top casing of the furnace being removed.

Like numerals of reference designate corresponding parts in all the figures of the drawing. 7

1 designates a steam furnace, having a pair of boilers 2 and provided with a steam pipe 3, arranged horizontally and extending into the furnace at the front thereof and located above the fire box 5, substantially in or near 1 in the boilers 2. The steam pipe 3, which is located in the space between the boilers 2,

extends rearwardly to a point above the rear ends of the grate bars 4, and it is adapted to discharge steam over the back of the fire box. It is connected at its outer end by suitable pipe connections 6 with the steam dome 7 of one of the boilers 2, and it is provided at its outer end with a valve 8 for controlling the discharge of the steam into the furnace. The inner end of the steam pipe 3 is provided with a tapering nozzle 9, which reduces the jet of steam and enables the latter to be discharged into the furnace with great force. l/Vhen the device is employed in connection with a furnace having two boilers, as illustrated in the accompanying drawings, the

steam pipe 3 is located between the boilers,

pipe' is arranged at each side of the same.

As this arrangement is perfectly obvious, and

involves a mere duplication of the steam pipe 3, illustration thereof is deemed unnecessary.

The salient feature of the invention resides in arranging the steam pipe 3 above the bottom of the boiler. By this arrangement the steam pipe is adapted to draw the flames upward to cause the same to envelop and impingei against the bottom and sides of the boiler as fully as possible. To accomplish this the steam pipe or artificial draft is arranged in or near the plane of the level of the water within the boiler, as it has been found by experience that the blast in the furnace will not go higher than the steam jet, and if it were placed at or below the bottom, it would be impossible to envelop in flames, that portion of the boiler containing the water, and the same amount of heating surface could not be secured. Furthermore, by arranging the steam pipe '3 above the bottom of the boiler, it is out of the way when firing the furnace with wood, and will not melt and run together should it become clogged for the space of half an hour, as would be-the case were it arranged beneath the bottom of the boiler in the blast of the furnace. It has also been found by experience that greater draft can be obtained by a quarter inch pipe, located at the level of the velop and impinge against the bottom and sides of the boiler, the smoke and some of the gases generated in the combustion cham- "ber are ignited in passing through the flames, and when the furnace once becomes hot the admission of air beneath the grate bars can be checked and retarded, thereby enabling the heat to be maintained above 460 degrees, which will ignite and consume such smoke and gases. The damper in the smoke pipe should be closed most of the time.

The device will render firing much easier than heretofore, and will greatly lessen the amount of fuel consumed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the class described, the combination with a furnace including a fire box and boiler, of a steam pipe located above the fire box and also above the bottom of the boiler and arranged exteriorly of the latter so as to be in the path of the products of combustion arising from the fire box, and having a discharge end terminating at a point so as to discharge over the back of the said fire box above the plane of the bottom of the boiler, whereby the blast from the steam pipe tends to draw the flame and products of combustion upward around and cause them to impinge against the bottom and sides of the boiler.

2. In a device of the class described, the combination with a furnace including a fire box and boiler, of a longitudinally disposed steam pipe extending into the furnace above the fire box and also above the bottom ofthe boiler and arranged exteriorly of the latter so as to be in the path of the products of combustion arising from the fire box, and having its discharge end located above and adapted to discharge over the back of the firebox in or near the same plane as the level of water within the boiler or boilers, whereby the blast from the steam pipe tends to draw the flame and products of combustion upward around and cause them to impinge against the bottom and sides of the boiler.

3. In a device of the class described, the combination with a furnace including a fire box and boiler, of a longitudinally disposed steam pipe entering the front of the furnace and extending into the same above the fire box and arranged above the bottom of the boiler in substantially the same plane as the level of water in the boiler of the furnace, and provided with a tapering nozzle located above and adapted to discharge over the back of the fire box, said steam pipe being located outside the boiler and within the range of the products of combustion arising from the fire box, whereby the blast from the steam pipe tends to draw the flames and products of combustion upward around and cause them to impinge against the bottom and sides of the boller.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

ANDREW H. FORD.

Witnesses:

W. W. WEST, R. N. ATMAR.