US906336A - Device for firing locomotives. - Google Patents

Description

w. A TETLOW. DEVICE FOR FIRING LOCOMOTIVES. ABPLIOATION FILED APR. 24,1908.

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UNITED STATES PATENT OFFICE.

WILLIAM ALLEN TETLOW, OF SALEM, OHIO.

DEVICE FOR FIRING LOCOMOTIVES.

Specification of Letters Patent.

Patented Dec. 8, 1908. 7

Application filed April 24, 1908. Serial No. 429,040.

To all whom it may concern:

Be it known that 1, WILLIAM ALLEN TET- Low, a citizen of the United States of America, residing at Salem, in the county of Columbiana and State of Ohio, have invented certain new and useful Improvements in Devices for Firing Locomotives, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a device for firing locomotives and stationary engines.

The primary object of my invention is to eliminate to a great extent the smoke emanating from the fire box of a locomotive or stationary engine, due to imperfect combustion, and to obtain a high degree of heat units within the combustion box or chamber of a locomotive or engine.

The present method of firing a locomotive or statlonary engine is to open the door of a fire box and throw coal therein with a shovel, the green coal being always'thrown on top of the hot coals; combustion begins at once and the smoke rolls out of the smoke stack.

To consume the smoke of a locomotive or engine, I provide a novel device which will subject the green coals to the hot coals in such a manner that the smoke from the green coals will pass through the hot coals and be consumed.

My device is constructed, whereby a locomotive or engine can be easily and quickly fired, not necessitating the opening of the door for every shovelful of coal. The coal is supplied in large quantities by providing removable grates, and the detail construction of these grates, together with the remainder of my device, will be presently described and then specifically pointed out in the appended claims.

Referring to the drawings forming a part of this specification, Figure 1 is a longitudinal sectional view of a portion of a stationary engine, constructed in accordance with my invention, illustrating my device in operation and within the combustion chamber of the engine. Fig. 2 is a similar view illustrating my device partly withdrawn from the combustion chamber, Fig. 3 is a side elevation of my device, and Fig. 4 is a plan thereof.

grate 2.

The combustion chamber above the ash pit 5 is rovided with a track 6 extending outward y from the bridge wall 16, and projecting beyond the front wall 7 of the combustion chamber. Upon this track is movably mounted a truck 8 having pivoted side arms 9 and 10 for elevating frames 11 and 12. To elevate the frame 11, I attach a rod 13 to the arms 9, said rod extending beyond one end of the truck and bent upwardly, as at 14, whereby the same can be easily handled. The arms 10 are elevated through the medium of a rod 15 similar to the rod 13.

In order that the truck 8 can be moved into the combustion chamber beneath the grates 1 and 2, I provide the rear wall or bridge wall 16 of the combustion chamber with a cavity 17 to receive the inner end of the truck, the object of which will presently ap ear.

n connection with the combustion chamber, I use an extra grate 18, and the use of this grate and my device will now be described. I will assume that the grates 1 and 2 support hot coals, while the extra grate -18 beneath the grate 1 supports green coal. The heat of the hot coals upon the grate 1 is adapted to affect the green coals on the grate 18, to that extent that smoke given off by the green coal will pass upwardly through the grate 1 and be consumed by the hot coals upon the said grate 1. The elevating frames 11 and 12 are positioned, one adjacent the forward end of the truck and the other adjacent the rear end thereof, so that when the truck is in the position shown in Fig. 1 of the drawings, the grate 18 which is resting on the rear elevatin frame, is directly under the grate 1. sired to add more coal to the fire, the hot coals upon the grate 2 are pushed forwardly upon the grate 1, as indicated by dotted lines on Figs. 1 and 2 of the drawings. The frame 12 is then elevated to engage the grate 2 and slightly raise the same, whereby the hinged grate bar 4 can be swung outwardly and the grate frame 2 lowered upon the truck 8. The truck is then moved to place the extra grate 18 in position to be elevated to rest upon the bars 3 and 4. After the extra grate 18 has been placed in position, the grate 2 which has been removed can be filled with green coal, placed upon the frame 11 of the truck and pushed into the combustion en it is de.

chamber beneath the stationary grate 1, whereby the smoke given off by the heated coal upon the grate 18 will be consumed by the hot coals upon the stationary grate 1.

The residue or ashes-from the grates is -per' mitted to pass through the truck in to the ash pit 5 from Where it can be conveniently removed.

It will be apparent from the foregoing description that l have devised anovel method of firing a locomotive or engine and that my device can be used in connection with a combustion chamber having a plurality of stationary and movable grates.

The invention as above described, is susceptible to such structural changes as are permissible by the appended claims.

Having now described my invention what I claim as new, is

1. In a furnace, a bridge wall, a track projecting from the bridge wall beyond the front wall of'the furnace, a stationary grate, and a removable grate in said furnace, and a hinged bar supporting one end of said removable grate, combined with a truck mounted to travel in and out of said. furnace on said track, a pair of elevating frames mounted on said truck near the forward and rear ends thereof respectively, a grate mounted on the rear elevating frame, means projecting beyond the front wall of the furnace and connected to the forward frame for elevating the latter to engage the same with said removable grate in the furnace to remove said grate from its supports onto the said forward frame of the truck, and supsaid frame to place the grate carried thereby in the position vacated by said removable grate.

' 2. In a furnace, a combustion chamber, a

track extending into said combustion cham-' "ber, 'a stationary grate and a removable grate in said combustion chamber, and means embodying a stationary supporting bar and a hinged bar for supporting said removable grate within'the combustion chamber, a truck mounted to travel in and out of the furnace on said track, a pair of independently operated elevating frames carried by said truck, a grate mounted on one of said frames, said elevating frames being so positioned on the truck that when the latter is in position within the furnace, the grate carried by one of the frames lies directly underneath the stationary grate in the furnace,

and levers connected to said elevating,

frames and projecting beyond the front wall of the furnace for operating the frames independently to remove the removable grate from the furnace on to one of said frames and place the grate carried by'the other elevating frame in position in the furnace.

In testimony whereof I aflix my signature in the presence of two witnesses.

WILLIAM ALLEN TETLOW.

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