US1600280A - Air control for locomotive fire boxes - Google Patents

Description

Sept. 21, 1926. 1,600,280

J. N. GLOVE'R- AIR CONTROL FOR LOCOMOTIVE RE BOXES Fiked Oct. 22, 1925 INVENTOR ZYIZGZ VGC- Q ATTORNEYS Patented Sept. 21, 1926.

UNITED STATES.

I reaazso PATENT OFFICE,

JAM'E'S NA HAN GLOVER OF KANSAS CITY, KANSAS.

, AIRCONTROL roe LoooMo'rIvE FIRE Boxes.

Y Application medoctoberaa, 1925. serial No. 64,231.

My present invention relates generally to locomotive fire boxes, and more particularly to the control of air passing into thesame, my primary object being the provision of means adjacent to the air inlet opening, which will displace the usual laterally swinging fire door and which will function to direct the strong current of air that passes inwardly through the fire door opening, downwardly onto the fire in order to insure that such air current strikes the fire several feet inwardly beyond the fire door opening and spreads over the fire, meeting the heat flare coming from beneath the arch and bringing about the desired chemical action for perfect combustion so that the black smoke will be consumed as a result thereof. I

A further object of my invention is the provision of an air controlled apparatus which will function to keep the cold air close to the fire and away from'the flue and crown sheets, bringing about a higher degree of superh-eat and less back pressure than is usually the case, and which will in addition,

' function as a baffle to protect the fireman from the excessive heat of the fire box.

In the accompanying drawing which illustrates my present invention and forms a part of this specification Figure 1 is a front elevation showing a locomotive firebox equipped with my invention applied,

Figure 2 is a side view thereof,

r'igure 3 is a detail perspective view of certain portions of the connections proposed b my invention, and

Figure 4 is a detail vertical section partially through the baffleplate or deflector.

Referring now to these figures, and particularly to Figures 1 and 2, I have shown a locomotive fire box in a general way at 101 having the usual framed fire door opening 11 for the entrance of air into the fire box. Ordinarily the frame 12 around the opening 11 supports a laterally swinging door which is displaced in accordance with my invention in favor of a vertically swinging baffle member or deflector plate 13, secured along its upper edge in connection with a rod 141. This rod extends across the upper portion of the opening 11 and is turnable in bearing members 15 secured to the frame 12, whereby the balfle member or deflector plate 13 is swingable vertically. The rod 14 1s extended at one side of the frame 12 and 13 provided with a threaded angular stem. 1.6 on

which weights 17 may be disposed so as to counterbalance the deflector plate and render it an easy matter to adjust the same as well as to hold it in adjusted position, and especially in its normal position in which it inclines inwardly and downwardly at an angle of approximately forty-five degrees (45) as shown in Figure 1, so a's'to deflect the incoming aircurrent downwardly onto the fire in the fire boxas shown by the arrows in Figure 2.

In order that the baffle member or deflector plate 13 may be raised to the fully open position, a treadle bar 18 ishinged to the outside of the fire box below and at one side of the opening 11 and connected by a cable or other suitable connection 19 to a lever 20, the connection 19 being joined to this lever at a point' intermediate the ends .of the latter as will be seen by reference to Figures 1 and 3.

At one end the lever 20 is pivotally mounted at 21 below the oil pan 22 and at its opposite end said lever is connected by a series ofhinged links 23 with a lug 24 outstanding forwardly from the upper central portion of the baflle member or deflector plate 13 so that the connecting members 23 thus accommodate themselves to the swinging movements of the lever 20 as well as the baffle member or deflector plate 13.

The lever 20 is also provided near its free end with an upstanding stop lug 25, and the parts are so arranged that this stop lug comes into engagement with the lower surface of the oil pan 22 when the baffle memher or deflector plate 1.3 is in its normal angular position above described.

Obviously, depression of the treadle bar 18 forces the free end of the lever 20 downwardly and, through the connections between this lever and the baffle member or deflector plate 13, the latter is caused to swing in wardly and upwardly to its full open position. Immediately upon release of the treadle bar, however, the baflle member or deflector plate 13 drops backto its normal position, as described.

As shown in Figure 4:, it is preferable that the baflle member or deflector plate 13 be formed of two sections 26 and 27 having between them a layer of asbestos and the like 28, due to which construction and the fact that the relatively cool air entering the fire box strikes the baflie member or deflector plate, enables the successfully wit-h standing lug intermediate its ends, a lever plvoted at one'end to a;p,ort1on of the said support and having a flexible connection depending from its opposite end and between the same and the said battle lug including a series of hinged links, a treadle bar, and a flexible connection between the treadle bar and said. lever engaging the latter intermediate its ends.

2. In a locomotive firebox having an :air

feed opening and a projecting support above said opening, a battle member hinged along its upper edge Within the upper portion of said opening and having an angular outstanding lug intermediate its ends, a lever pivoted at one end to a portion of the said support and having a flexible connee-- tion depending from its opposite end and between the same and the said bafi'le lug ineluding a series of hinged links, a treadle bar, and a flexible connection bet 'ee'n the treadle bar and said lever engaging the latter intermediate its ends, said lever having an upper angular extension at its free end engageable with the said support to limit and prevent complete closing of the ire box opening.

JAMES NATHAN GLOVER.

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