US1613110A - Locomotive stoker - Google Patents

Description

Jan. 4, 1927. 7

I c. H. JEFFERS LOCOMOTIVE STOKER Filed August 31, 1925 2 Sheets-Sheet 1 4 7 Jan 1927 c. H. JEFFERS LOCOMOTIVE S'IOKER Filed August 51, 1925 2 Sheets-Sheet 2 Patented Jan. 4, 1927.

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CARL H. JEFFERFJ, 01 CANTUN, OHIG.

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Application filed August 31, 1925.

The present invention relates to automatic locomotive stokers, and is particularly an improvement over the locomotive stokers disclosed in my Patents Nos. 1,423,221 and lyillflfl? granted July 18, 1922 and June 30, 1925, respectively.

One object of the invention is the provision of a novel deflector for scattering the particles of coal which are blown into the firebox of the locomotive.

Another object is the provision of novel means for oscillating the deflector in order to assist in the scattering of the coal throughout the area of the firebox.

i. further object is the provision of a novel closure for the coal receiving opening of the firebox, which closure is cooper-able with a coal delivery nozzle that is movable into and out or": registration with said opening.

It is also an object of the invention to improve the coal delivery means generally in its construction and assemblage of the component elements, in order that the stoker will be practical and efiicient in use.

llith the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary side elevation of the stoher embodying the improvements, portions being shown in section, and the coal delivery nozzle being in retracted position.

F 2 is a rear view showing the nozzle in projected or delivery position, portions bei shown in section.

l a fragmentary rear view showing the" nozzle retracted, as in Fig. 1.

F lis a horizontal section on the line 44: o1 Fig. 2.

Fig. 5 is a perspective view of the finger pivoted to the upper portion of the deflector operating lever, showing the finger in full lines in the position as shown in Figs. 1 and 3, and in dotted lines in the shown in Figs. 2 and 4cnumeral indicates the wall of the position as Serial No. 53,641.

firebox which has the coal receiving opening 11 through which the coal is delivered into the firebox, and the fragments or particles of coal are delivered, after the coal is crushed, by a blower 12 through the discharge pipe 13 thereof: and a nozzle or delivery pipe 14; slidable on the pipe 13. Only a porion of the blower is shown, reference being had to the aforesaid patents for a disclosure of the coal feeding and crushing means and the blower. The pipe 13 projects upwardly, and the nozzle 14 is slidable upwardly and downwardly on the pipe 13, and the upper end portion 15 of the nozzle 14 is curved or directed toward the wall 10 of the firebox. The upper end of the nozzle 14 is formed with a slide plate 16 movable along the wall 10 to and from the opening 11, and said plate 16 has the grooves 17 at its side edges engaging the flanges 18 of guide bars 19 that are secured to the wall 10, thereby guiding the plate 16 and upper end of the nozzle 15 for upward and downward nioven'ient into and out of registration with the opening 11.

The nozzle 1 1 is raised and lowered by any suitable means. For example, as dis closed in said patents, a piston rod 20 is connected at its upper end with the nozzle L1 and works within a cylinder 21, so that compressed air, steam or other pressure fluid may be used for sliding the nozzle.

The closure for the opening 11 comprises a pair of doors 22 pivoted, as at 23, to the Wall 10 above the opening 11, so that said doors ina oscillate away from one another and upwardly to open position and downwardly toward one another to closed position, as seen in Figs. 2 and 3, respectively. The doors 22 are preferably formed with intermeshing gear teeth 24. so that both doors swing simultaneously away from or toward one another. The adjacent edges 25 of the doors abut when the doors are in closed position, as seen in Fig. 3, and the doors have the cut-away portions 26 at the lower ends of the edges 25, forming a notch when the doors are closed. The upper ends of the flanges 18 overlap the doors 22 so as to hold said doors against the wall 10, said doors being pivoted to swing in a plane adjacent to and parallel with the wall 10. and the plate 16 moves in substantially the same plane.

The closure is automatically opened when the nozzle 14 is projected into registration with the opening 11. Thus, the plate 16 has the upwardly converging edges 27 forming a wedge whose nose projects into the notch formed by the portions 26, as seen in Fig. 3. Thus, when the nozzle 14 is raised the plate 16 will swing the doors 22 apart by wedge action, and the upper end of the nozzle 14 moves into registration with the opening 11, with the doors 22 swung apart and their edges 25 abutting the edges 27 of the plate 16, so that the plate 16 and doors 22 cover the opening 11, as seen in Fig. 2. When the nozzle 14 is retracted the doors 22 will swing closed by gravity. Said doors may also be readily swung open by the fireman or attendant when desired.

A shelf 28 is supported by the wall 10 immediately under the opening 11 and projects inwardly from said wall into the firebox. A plate 29, forming the base of the deflector, is seated on the shelf 28, and pivotally engages over a pivot stud 3O rising from the shelf or bracket 28, so that the deflector may oscillate about said stud 30. The deflector 31, which may be cast integral with the plate 29, rises from the plate and has the deflecting walls or surfaces 32 diverging away from the opening 11 and in clined, so that said surfaces or walls deflect the particles of coal toward opposite sides, while some of the particles will be blown upwardly over the deflector, in order that the deflector will scatter the particles of coal effectively throughout the area of the firebox. The top surface of the deflector 31 slopes rearwardly and has no effect on the deflection of the particles of coal, and the surfaces or walls 32 only deflect a portion of the coal toward the sides of the firebox. It will be apparent that when the nozzle 14 is raised into registration with the opening 11 and the particles of coal are blown with the air blast through the opening 11 some of the particles will pass into the firebox over the deflector 31 while other particles at the lower portion of the stream will be deflected laterally by the surfaces or walls 32, there by scattering the coal transversely and longitudinally of the firebox.

The deflector is oscillated in order to assist in the lateral spreading of the coal in the firebox. For this purpose, the plate-29 has a transverse flange 33 at that end adjacent to the opening 11 over which a plate 34 extends in overlapping relation with said flange 33, and the plate 29 has a rounded groove 35 extending across the upper face of the flange 33. The plate 34 is formed with a rounded-rib or bead 36 fitting in the groove 35 to provide a sliding hinge connection between the plates 34 and 29, permitting the plate 34 to be swung upwardly from the flange 33 The bead or rib 36 is also slidable in the groove 35 transversely of the plate 29, and the groove 35 is so fornn ed as to provide a lip 37 overlapping the bead or rib 36 so as to hold said bead or rib in the groove 35, the plates 34 and 29 being assembled by sliding the bead or rib 36 longitudinally into the groove 35 from either side edge of the plate 25 The flange 33 has an upstanding pin or lug 38, to engage in either of a series of apertures 39 with which the plate 34 is provided to prevent lateral sliding adjustment of the plates 34 and 29. However, by swinging the plat 34 upwardly it is disengaged from the hr 33 and the plate 34 may be adjusted transversely of the plate 29 to engage the lug 33 in another aperture 39, and this will change the relative position of the plates 34 and The plate has anoteh or open slot 40 for the engagement of the linger 40 of the actuating means as will be presently described.

The flnger 40 is pivotally connected to the upper end of the upper arm 41 of a lever 42- which is fulcrume l, as at 43, to the nozzle 14, in order that said leve raised and lowered with the nozzle lVhen the nozzle is lowered the finger 40 is swung upwardly as seen in dotted lines in Figs. 1 and 3, and bears against the wall 10. ll hen the nozzle is raised into registration with the opening 11, the finger 40 will swing downwardly by gravity through the opening 11 so as to rest on the slate 34, a d will drop into the notch 40, in any position of the plate 34, when the lever 42 is oscillated, in order that the oscillation of the lever 42 will move the finger 40 transversely of the opening 11 thereby oscillating the deflector 31. The actuating means is thus automatically connected to and disconnected from the deflector when the nozzle 14 moved into and out of registration with the opening 11.

The lever 42 has a lower arm 44 which is preferably offset to one side, and the plate 16 has a recess 45 accommodatin the upper arm 41 of said lever. The arm, 44 has a longitudinal vertical slot 46 in which a crank 47 of a rock shaft 48 engages. Said shaft is journaled in the bearings of brackets 49 and 50 secured to the casing of the blower 12. The shaft 48 has an arm 51 connected by a link or connecting rod 52 with a crank pin 53 operated by a shaft 54. As shown, the crank pin 53 is carried by a worm wheel 55 secured on the shaft 54, and a worm meshing with the worm wheel 55 is driven by a drive shaft '57. Thus, as the shaft 57 is operated in the operation of the stoker, the crank motion of the pin 53 and connecting rod 52 will oscillate the arm 51 and shaft 48, thereby oscillating the crank 47 and lever 42. The slot 46 permits the lever 42 to move upwardly and downwardly with the nozzle 14 without interfering with the actuation of said lever while being moved upwardly or downwardly to or from the opening 11.

When the stroker is brought into operation, the nozzle 14 is raised, so that the plate 16 separates the doors 22 as the nozzle 14 is brought into registration with the opening 11, as seen in Fig. 2. The actuating means will oscillate the lever 42, and when the nozzle is raised the finger will swing by gravity through the opening 11 onto the plate 34 and will drop into the notch 40, thereby oscillating the plates 34 and 29 about the pivot stud 30. Thus, as the particles of coal are blown with the air through the nozzle 14 and opening 11 into the firebox, the deflector is oscillated to ass st in the spreading of the coal throughout the firebox. When the nozzle 14 is retracted, the doors 22 close automatically, and the finger 40 is swung upwardly when passing over the lower edge of the opening 11, thereby disconnecting the actuating means from the deflector.

By adjusting the plate 34 transversely with reference to the plate 29, it is apparent that the position of the deflector 31 is changed angularly with reference to the finger 41, and it is thus possible to regulate i the deflection of the coal to the opposite sides of the firebox, and the deflector can be made to move further toward one side than the opposite side, or may be made to move the same distance toward opposite sides of the longitudinal line of the stud 30.

Having thus described the invention, what is claimed as new is 1. In a Stoker, the combination with a firebox wall having an opening, of a fuel delivery nozzle at the outer side of said wall movable into and out of registration with said opening, an oscillatory deflector mounted at the inner side of said wall for deflecting fuel delivered through said opening from said nozzle, and means for oscillating said deflector brought into and out of action by the movement of the nozzle to and from said opening, respectively.

2. In a stoker, the combination with a firebox wall having an opening, of a fuel delivery nozzle on the outer side of said wall movable into and out of registration with said opening, a shelf carried by said wall at the lower portion of the opening and extending inwardly from said wall, a deflector mounted on said shelf for oscillatory move ment and arranged for deflecting fuel delivered through said opening from said nozzle, and means for actuating said deflector, brought into and out of action by the movement of the nozzle into and out of registration with said opening, respectively.

3. In a Stoker, a fuel delivery nozzle movable to and from delivery position, an oscillatory deflector arranged to deflect fuel de livered from said nozzle when it is in delivery position, and actuating means for the deflector arranged to be connected to and disconnected from the deflector by the move ment of the nozzle to and from delivery position. v

4. In a stoker, a delivery fuel nozzle movable to and from delivery position, an oscillatory deflector arranged to deflect fuel delivered from said nozzle when it is in delivery position, and actuating means carried by the nozzle, said means and deflector having portions arranged to be connectednnd disconnected, respectively, by the movement of the nozzle to and from delivery position.

5. In a stoker, the combination with a firebox wall having an opening, of a fuel delivery nozzle movable into and out of registration with said opening, an oscillatory deflector mounted inwardly of said opening for deflecting fuel delivered through said opening from the nozzle and actuating means arranged to be connected to and disconnected from said deflector by the movement of the nozzle into and out of registration with said opening.

6. In a stoker, the comb nation with a firebox wall having an opening, of a fuel delivery nozzle movable into and out of registration with said opening. an oscillatory deflector mounted inwardly of said opening for deflecting fuel delivered from said nozzle through said opening, an actuat ing member carried by Said nozzle. and means for operably connecting said deflector and member and disconnecting them when the nozzle is moved into and out of registration with said opening, respectively.

7. In a stoker, the combination with a firebox Wall having an opening, of a fuel delivery nozzle movable into and out of registration with said opening, an oscillatory deflector mounted inwardly of saidopening for deflecting fuel delivered through said opening from the nozzle, an actuating mem ber carried by the nozzle, a finger pivoted to said member and arranged to swing through said opening when the nozzle is moved into registration with said opening, and a portion connected with the deflector with which said finger is eugageable for oscillating the deflector by the movement of said member.

8. In a stoker, the combination with a firebox wall having an opening, of an oscillatory plate mounted adjacent to said opening and having a deflector for deflecting fuel blown through said opening, a second plate having a sliding hinge connection with the firstnamed plate, said plates having portions to engage one another when the second plate is in normal position and to disengage one another when the second plate is swung away from normal position so that said second plate may be adjusted slidably relatively to the firstnamed plate, and actuating means with which the second plate is engageable in the dillerent adjustments of the PliltGS to change the relation of the firstnamed plate to the actuating means.

9. In a stoker, the combination with a firebox wall having an opening, of a plate mounted adjacent to said opening for osci lation and having a groove and a deflector for deflecting fuel blown through said opening, a second plate having a rib fitted in said groove for turning and sliding movements to provide a sliding hinge connection between the plates, said plate having portions to engage one another when the second plate is in normal position to prevent tive sliding movement between the plates, and said portions being disengaged when the second plate is swung to another position to permit the plates to be adjusted slidably relatively to one another, and actuating means for oscillating the firstnamed plate, the second plate having a portion for en gagement with the actuating means in the different adjustments of the plates to change the relation of the firstnamed plate to the avtuating means.

10. In a stoker, the combination with a firebox wall having an opening, oil a closure for said opening pivoted to said wall to swing in a plane parallel to said wall, and a delivery nozzle movable into and out of registration with said opening and having a plate atits delivery end movable along said wall substantially in said plane and across said opening, said plate being arranged to swing the closure open when the nozzle is moved into registration with said opening.

11. In a Stoker, the combination with a firebox wall havingv an opening, of doors pivotally mounted to swing together and close said opening, and a delivery nozzle movable into and out or" registration with said opening and having means for swinging SulLl doors apart when the nozzle is moved into registration wit-h said opening.

12in a Stoker, the combination with a firebox wall having an opening, of doors pivoted to said wall to swing together across said opening, and a delivery nozzle movable into-and out of registration with said opening and having a wedge portion at its de livery end to move between said doors "for swinging the doors apart when the nozzle is moved delivery position in registration with said opening.

13. in a stoker, the combination with a firebox wall having an opening, of a pair t doors pivoted to said wall above said opening to swing downwardly abut against one another across said opening, and a livery nozzle movable upwardly and downwardly into and out of registration with said opening and having a plate at its delivery end movable along said wall, said plate having upwardly converging edge-fa forming a wedge portion to move upwardly between said doors for swinging the doors apart when the nozzle is raised into tration with said opening.

In testimony whereof I hereunto a'liix my signature.

CARL H. JEFF Q29.

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