US966547A

US966547A - Mechanical stoker.

Info

Publication number: US966547A
Application number: US52765409A
Authority: US
Inventors: David F Hervey
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-11-12
Filing date: 1909-11-12
Publication date: 1910-08-09
Anticipated expiration: 1927-08-09

Description

D. F.-HERVEY.

MECHANICAL STOKER.

APPLIOATION FILED Nov, 12, 1909,

966,547. Patented Aug. 9, 1910.

4 SHEETS-SHEET 2.

. m g I I GUM/H013 D. I. HERVEY.

MECHANICAL STOKER.

APPLICATION PILED'HOV. 12, 1909.

966,547, Patented Aug. 9, 1910.

4 SHEETSSHEET 3.

anucui'oz W I Jamal 929F176 D. F. HERVEY'.

- MECHANICAL STOKER.

APPLICATION FILED NOV. 12, 1909.

Patented Aug. 9, 1910.

4 SHEETS-SHEET 4.

amva-ntoz A. Z553 Eli/4m DAVID .E. HERVE-Y, or LoeAiisron r, INDIANA.

. MEoHAN cAI. sroxna.

Specification of Letters Patent.

Patented Aug. 9, 1910.

Application filed November 12, 1909. Serial No. 527,654.

To all whom "it may concern:

Be it known that I, DAVID F. HERVEY, a

' citizen of the United States of America, and

resident of Logansport, in the county of Cass and State of\Indiana, haveinvented certain new and useful Improvements in Mechanical Stokers, ofwhich the following is a specification.

This invention relates to certain new and useful improvements in mechanical stokers and while designed primarily for use upon locomotives or 1n connection with locomotive boilers, it is to be understood that it is as applicable to stationary boilers and all other devices of like nature where, it is desired to feed the fuel mechanically.

The present invention has for its objects among others to provide. a simple, eflicient, economical, yet reliable means for mechanically stoking, which shall economize space and which can readily be disconnected, removed, or set'aside to permit of ordinary hand firing when occasion may require.

It has "for a further object to provide a reliable and efficient device of this nature having provision for the distribution of the fuel as circumstances may require, for instance, at times when it becomes desirable to feed to only'one side, and then again only to the other, and at other times it may be necessary to supply the fuel nearer to or farther from the rear end of the fire box. I provide for this by varying the speed'of rotation of the rotary member which delivers the feed through the fire door and for reversal of the direction of rotation, whereby the desired end s accomplished in a simple and eflicient manner. I provide also for the accomplishment of thisend by providing different shaped plates for removable attachment to the outer periphery of the rotary member by means of which the fuel is delivered in difierent'positions and in different. ways to suit the diversityof fire boxes and to adapt it to the varying conditions under which the same may be used.

I provide also for ready inspection of the fire at any time, as well as for the introduction of a poker or hook for leveling the fuel.

l provide also for ready disconnection or removal of the spout disposed intermediate the elevator or conveyer and the hopper, and I aim also at improvements in the details of construction whereby the desired ends are attainedin a more efiicient and satisfactory manner and the cost of manufacture and application of the apparatus reduced to a mlnlmum.

The improvement and its application is such that it in no wise interferes with the shaking of the grates, and when disconnected or moved aside, the engine may be fired as in the ordinary form.

Otherobjects-and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims. The invention, in its preferred form, is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which-- Figure 1 is a longitudinal vertical section thr ugh the adjacent portions of a locomotive deck and tender, showing the application of my present improvements. Fig. 2 is a top plan with portions broken away. Fig. 3 is a vertical cross section on the line 3-3 of Fig. 1, lookingin the direction of the arv delivery member, showing a modified form of delivery plates. 6 is a similar view showing plates of a different form. Fig. 7

isa similar view showing a modified form of the member itself and a different form of delivery plate. Fig. 8 is a view similar to Fig. 6, showing still another form of delivery plate. Fig. 9 is an end elevation of the door for closing the outlet from the hopper, its shaft being shown in section. Fig. 10 is a detail in elevation, looking in the direc tion of the arrow 10 in Fig.1. Fig. 11 is an enlarged face view of the fire door and the parts carried thereby. Fig. 12 is a vertical .c section from front to rear, showing the revoluble distributer thrown up and the door thrown open.

Like numerals'of reference indicate like parts throughout the difierent views.

Referring to the drawings, 1 designates the tender, 2 the deck thereof, 3 the fire box of the boiler 4 which may be of any of the well-known types, and 5 the enginedeck, 6

being the ordinary apron bridging the'spac'e between the adjacent ends of the decks 2 and 5. I

I 1 *7 designates the front end of the coal bin,

l I 8 being the fuel-or coal. 'In the space'9, forward of the coal bin, I arrange my conveyer or elevator. This' consists of an endless chain'lO carrying the buckets 0r conveyers 1 1, of-any of thefwell-known or approved forms of construction, designed to take the coal from the bin jandycarry it'upward and deliver it into the chute, soon to be described, from which it is conveyed to the hopperand thence, by means of the rotary member, into 'the opening, in the fire box. The chain or carrier 10 passes around a sprocket wheel 12 carried by a shaft 13 at the upper end of the bulk head and around a sprocket wheel 14 carried by a shaft 15', journaled; at the lower end thereof. Theconveyer is disposed or inclosed within a casing 16, as shown.

17 1s a plate or the like forming a pit in which the lower sprocket wheel-is received and into which the. coal is received through the opening in the frontof the coal 'bin in position to be readily taken up'by the buckets 11 of the conveyer 10. I,

The upper shaft may be supported in any suitable Way, in the present instance being .shown as. mounted in a bearing on the that there is, of course, one of these upon, .each side of the bulk head.

bracket or plate 18 securely bolted to the side wall of the bulk head,it being understood 19 is an inclined chute on which the, fuel 15 conveyed from the elevator or conveyor to the hopper.- At its upper end.this chute is provided with the extensions 20, which are pivotally connected, asat 21, with the eccentrics or the like 22 onthe shaft 13. These parts are so timed that the chute is given a back and forth reciprocation o-r mOtlOIl for each revolution of the shaft 13. The forward movementof the chute is designed to occur at a time just before the adjacent-"elevator bucket moves upon the descending side of the carrier or chain. This reciprocation or oscillation of the chute keeps the fuel in constant motion and prevents blo'gging of the same. While -it is desi ed that all of the fuel delivered by the hue ets shall be received in the chute, should there be any overflowing oryan delivered-into the chute it will be collected withinthe casing 16 and all down maths pit beam a6 lower sprocket .wheel 14,-Where it "will bef-taken up 6-5 by the buckets. When not in use, the chute 19 can be thrown up out ofthe-way, by reason of its pivotal connection with the eccentrics, as'w'illbe readily understood. In

order to guide the forwardend of the chute pos- I and decrease the friction, as much. as sible, I- provide aroller or rollers-23 mounted on the rear end of the hopper, soon to be de;;

scribed, and upon which-the lower end of the chute rests, as will be-clearly understood uponreference to-Fig. 1.

The chute 19 is preferably provided with a hinged forward portion 24, hinged upon .the under side, as shown at 25, so that the same may be folded downwardly, when de- 0 "'si'red' to permit .of then ward foldin of the chute and clearance of thecab roo 26 is a bar extending across the top of the chute at a point approximately adjacent its connection with the eccentrics, as seen in Figs. 1 and 2. This servesnot' only as a ban? dle by which the chute maybe elevated or manipulated, but it serves al'sojas a mean; for stopping and preventing flow of lumps of coal or fuel too large. to be properly taken a care of by the rotary delivery member, soon to be described. Any, lump too-lair eto pass below thiscross bar 26 is stoppe thereby and can be readily removed and broken up or thrown back into the tender; Y

be deflected when desired to either one side orthe other, so as'to be delivered to oneside I only of the fire box, I provide a deflector -23;

pivotally mounted, as at 28, in any suitable 1'20 manner, and the pivot provided with 'a suitable spring lock, as seen at 29, so as to hold the deflector in any of its adjusted positions.

Ordinarily, when it is desired to feed the fuel evenly to the fire box, thedeflector will be held in lon itudi'nal alinementwith the *chute, as seen n full lines in Fig. 2. When it is desired to feed the fuel to one side only,

or theother of the fire box, the' deflector is moved upon its pivot to one'=s1de or the other,

as indicated by dotted lines in Fig. '2, so as to close theexit from the chute upon one side and leave the other side open, through which the fuel will'be delivered.

Motion may be imparted to the elevator or conveyer in any suitable manner. In the present instance, I have shown a-subs'tantially vertical shaft 30 designed tov receive its motion from an engine or prime motor on the boiler head or some other convenient location. This. engine or prime motor-will soon be described, but for the timebeing it is suflicient to. state that the-shaft 3Qis revolved and that-upon its lower end ;it car-f ries a bevel pinion 31 that meshes with a' bevel pinion. 32 on the substantially ,hori--- In order that 'thefuel from the chute may motion.

zontal shaft 33 mounted in suitable hearings in the framing of the" decks 2 and 5, as shown clearl in' Fig.1. This shaft has, preferably a acent the rear end of the deck of. the locomotive, a universal coupling 34 to compensate for side motion or curves or curved paths or vertical, movements due to various causes, while the locomotive is in The rear end of this shaft telescopes Within the tubular-portion 35' of a shaft 36 mounted in suitable bearings beneath the deck 2 of the tender and carrying upon its rear end a bevel pinion 37 meshing with a bevel pinion 38 on the shaft 15. It will thus be understood that as the shaft 30 is revolved, motion is imparted to the shaft 15 and, consequently, to the carrier or chain 10, and to the buckets 11, whereby the fuel is elevated by said buckets and deposited upon the chute 19.

The shaft 30 carries at its upper end a bevel pinion 39, which meshes with a pinion 40 onthe end of the portion 41 of the crank shaft 41 of the-engine, which may be of any form of construction suitable for the purpose. I prefer to employ a double cylinder reversible marine engine, such, for instance as that known as the Kriebel although it is to be understood-that the invention is in no wise restricted to sudh form of engine. Of such an engine, the shaft e1, just mentioned, is the crank shaft and further description of such engine is not deemed necessary, it being understood that the shaft is given motion by suitable con-' nections, as seen at 42 and 43, between the cranks and the pistons of the engine' Actuation of this crank shaft imparts motion to the shaft 15 carrying the lower sprocket wheel of the elevator or conveyer, through the medium of the bevel pinions 40, 39, shaft 30, bevel pinions 31, 32,

shaft

33, 36 andthe bevel pinions 37 and 38, in a manner which will be readily understood and which will be apparent from an examination of Fig.1. On the other'end of the crank-shaft 41 of the engine is a sprocket wheel 44: around which passes a-sprocket chain 45, which, in turn, passes around a sprocket wheel 46 on the shaft 47, by means of which motion is imparted to the rotary delivering device, soon to be described. The engine is suitably supported uponthe top of the fire box door frame and suitably secured to the boiler head, so as to be perfectlyrigid.

48 is a hopper. It is supported at the fire door and. is introduced between the forward end of the chute 19 and the opening 49, through which the fuel is to be fed, to the fire .box. It is fitted to rest upon the shaft 47 and is secured to the engine foundation, as shown at 50. This is but one of the many ways in which the hopper might be supported in its proper position and the invention is in no wise restricted to the manner of-support-ing said hopper. It can be readily "1'611'10V8d at any time by removing the fastcnings 50, sh as to adapt the device for hand firing when necessary and to per- 'mit of swinging with the door and the parts carried thereby.- Thishopper may be of any suitable form, being provided with a central partition and sloping sides, as seen at 51 and 52 in Fig. 2, so as to conduct the fuel to opposite sides of the hopper as the fuel is delivered thereto from the chute 19'. When other, the fuel will-all be delivered upon, the one or the other of the sloping sides 52 of this central partition and delivered to one side only of the hopper.

I the deflector 27 is turned to one side or the The revoluble distributer is disposed with I in a suitable casing53. This casing is pivotally mounted, as at 54,- to a detachable door frame '55 which may be at any time readily removed and the ordinary fire door,

which is set aside during the use of the apparatus herein described, put in its place.

,This casing, together with the revoluble distributer, may at any time be thrown up into the position in which 'it is seen in Fig. 12,

and the door frame 55 may be swung around upon its hinges, as seen in said Fig. 12, to

entirely disclose the opening 49 for inspection of the boiler or any other purpose. This frame is hinged at 56, the pintle 57 being removably. engaged between the eyes of the hinges of the door frame and suitable the boiler head. By reeyes or lugs 58 on the door frame and its moval of this pintle,

accessories may be entirely removed in a veryshort space of time.

The revoluble distributer comprises a central hub or sleeve 59, from which radiate the arms 60, in this instance shown as four, but this number is not obligatory, and on the outer ends of these arms are carried the bars 61 which extend parallel with the hub or sleeve 59 and are, preferably, provided with openings 62 for the attachment of diiferent forms of distributer plates, when necessary.

This hub is secured to the shaft 47 in any suitable manner, as, for instance, by a set screw63, as seen in Fig. 4. In order to form a division substantially at the center of the revoluble member above described,

and toprevent the coarser coal from passing from one side to the other when one side of the fire box only is being fed, I provide the bars or p1ates'645 which connect adjoining bars 61 at the center of the distributer, the mep1bers64 extending at right angles to the bars 61 and joining and staying the latter bars. This will be clearly understood upon reference to Fig. 4. T

Under normalconditions, the distributer i is employed as seen in Fig. l, but should circumstances require, I propose to attach to the bars 61, by utilizing the openings 62 therein provided for this purpose, distributer plates, several different forms of which are illustrated in Figs. 5 to 8 inclusive. In

Fig. 5, the plates 65 are shown as angularly disposed with their outer surfaces divergent from the periphery inward. In Fig. 6, simillar plates 66 are shown but oppositelydisposed, that is, with their" outer ends divergent. In Fig. 7, Ihave shown plates 67, which are concave, while in Fig. 8 I have shown plates 68 which are convex. These are detachable andinterchangeable and the form best suited to the conditions existing can be readily applied, these conditions being varied according to the character of the locomotive and other circumstances.

In Fig. 7, the general form of the body portion of the rotary distributer is shown as circular instead of polygonal, as seen at 69.

- The purpose and mode of operation, however, is the same in trated.

The casing 53, in whose ends the shaft 47 all of the forms illusis mounted, isiprovided upon its outer por-' tion with a door 70, 'hinged, 'asat7l, to the casing. It isprovided with a suitable dampered opening 72, to give light on-the deck and to admit air to the casing and to the fire.- By throwing this door 7 Qup'on its hinge, the fire may be inspected, and, if necessary, a 'fire hook or poker may be introduced to stir the vfire or level the fuel within the fire box. Any suitable means may be employed for locking the door 70 in its closed position.

Fuel 'fnfin the hopper is fed into the easing 53 to be acted upon by the dis'tributer therein, through openings in the opposite ends. of the casing, In order to close these openings, when desired, to stop the flow of fuel and-also to prevent ingress of air, I

rovide at each end a revoluble damper or door 7 3, seen best detached in Fig. 9. I This door is revolubly mounted upon the shaft 47 and jhas an opening 74- formed-by the removal of a'portion of said d'oor. The distanoe betweenadjacentside walls of this opening at the periphery of the damper or door is equal to. the feed opening at the bot-: tom of the hopper. When feeding fuel, this door is in such position that the opening 74 the interior of the casing, it being -understood that the opening in the simially connected, as at 77, with'the horizhntal rod 78, to which are pivotally'connected, as

at 79 and 80 respectively, one arm of each ofthe bell cranks 8 1 and 82. -These bellcranks are-pivotally mounted, as at 83 and 84: respectively, on suitable brackets or other supports on theboiler. The ends of. the

other arms of the bell crank levers are pivotal'lyconnected, as at'85 and 86, with rods, links or the like 87 and 88, the. other ends of which are suitably connected each-with a door 79. From the above, when taken in connection w1th Fig. 3, it will be seen that in the position of the lever indicated, the

doors will be in such position that their openings 74 will be coincident with the openings in the-ends of the casing and the bottom of the hoppers. Manipulation of the lever in one direction or the other will, through the medium ofthe means just described,. turn the doors simultaneously on their pivots, so as to bring solid portions thereof opposite the openings in the ends of. I the casing. The lever' 75 is providedwith a suitable'pawl for engagement with-the teeth of a segment 89, as 'seenin Fig. 2, to lock the same in either of its adjusted positions, so as to prevent accidental m9 of the doors. a

The operation of the elevator or conveyer can be readily controlled by the engineer or fireman within the cab. One eflicient means for this purpose embodies a clutch 90 onthe portion 41 of the crankshaft 41' and controllable by a rod 91 and connection 92 pivotally ,mounted. at 93, on any fixed art. Manipulation of this rod to throw the c utch members into engagement insures actuation of the conveyer or elevator when the engine is running, so that the shaft 41 is revolved. By movement of the rod 91jii1 the opposite direction, so as to disengage the clutch members, the shaft 41- is caused to revolve? without actuation of the shaft 30 and the parts "operated thereby.

With the parts constructed and arranged substantially as hereinbefore desd'ibed and as shoWnin'the accompanying drawin s, the

operation will 'be apparent, and, riefly stated, is as follows :It is to be understood that the engine 94 is rigidly mounted upon emen'tjf either the engine has a sufficiently rigid and firm center or front ing ' the ingress of air.

foundation. Whenit is desired to feed fuel to the fire box, the engine is started.

Through the medium of the connections hereinbefore described, motion is imparted to the elevator or conveyer and to the rotary distributer. The fuel 96 is taken up by the buckets 11 and as the buckets turn at the upper end of the elevator, the fuel is deposited into the chute 19. This chute is agitated by reason of its connection with the eccentrics 22, as hereinbefore described, and the coal passes down the chute and into the hopper. Any large lumps too bi to, pass beneath thecross bar 26 are stopped thereby, one of such lumps being indicated at 97 in Fig. 1 as stopped by such cross barf After falling into the hopper,'the coal is taken up by the plates of the rotary distributer after falling tothe lower portion of the casing 53. If it is desired to deposit the fuel toward the end of the fire box, the rotary conveyer is revolved in the direction of the arrow seen in Fig. 1, so that the fuel is thrown upward and upon a curve into the fire box, the'fuel being thrown a greater or less distance through the-opening 49 according to the speed with which the distributer is revolved. If it is desired to deposit the fuel adjacent the opening 49 into the fire box, the distributer is revolved very slowly in the direction of the arrow in Fi 1, or by reversing rapidly the direction of rotation, the fuel is taken up by the plates of the distributer and held to the outer surface or periphery thereof and then deposited just inside of the fire box, as indicated by the elongated dotted arrow in Fi 1. It is to be understood that while fee ing fuel, the doors 73 are open, that is in such position that their openings 74- are coincident with the openings .in the ends of the casing 53 and of the hoppers. has been fed, the lever 75 is moved so as to give the doors 7 3 a partial revolution, bringsolid portions thereof opposite the sa1d openings in the'ends of the casing and hop pers, thus closing off communication between the hoppers and the casing and shutting ofi As soon as sufiicient fuel has beenfed, the rod 91 is moved so as to disengage the clutch members 90 and motion is no longer imparted to the shaft 30 and movement of the conveyer or elevator is stopped. The clutch is arranged to start or stop the'conveyer at the will of the operator as it is not my desire to feed the coal constantly, but rather to fill the hopper, then to disengage clutch 90, so that the engine and distributer may be run at any desired speed in either forward or reverse direction, the

When suflicient fuel reversing features of the engine determines the direction of rotation of the distributer.

The action of the revoluble doors 7 3 will be seen best detached in Fig.9. These doors are to be closed when it becomes desirable to fill the hopper with coal or to stop the flow of fuel into-the casing 53 So that when it is necessary to reverse the direction of the distributer to place coal in the back/ corners of the fire box, these doors 72 are closed. The engine is started, clutch 90 is engaged to .start conveyer machinery to fill hopper and after sufiicient coalhas been placed in the hopper, the clutch 90 is disengaged by moving the rod 91. Then the engine is reversed, doors 73 opened to admit the coal which will be carried around casing 53 and deposited in either or both' of the back corners,.as desired, remembering that if both sides of the hopper are filled, both back corners of the fire box will be replenished, whereas if one side only of the hopper is filled, the correspondingback corner only in the fire box will be fed with fuel. The same method may be employed when it is desired to run the distributer in the forward or usual direction.

If at any time it is desired to view the condition of the fire, the door 70 may be opened and if necessary the -fire may be stirred or the fuel evened by means of a fire hook or poker introduced through the opening.

The rotary distributer is employed either in the form shown in Fig. 4, in which case the bars 61 serve to act upon the fuel, or

it may be equipped with any one of the forms of distributer plates illustrated in Figs. 5, 6, 7 and 8 according to the circumstances. The fuel can be thrown toward the sides or toward the center of the fire box by using the forms of plates seen in Figs. 5- and 6, while by the employment of the form of plates seen in Fig. 7 the fuel.

would be thrown farther toward the front end of the fire box. By use of the form of plates seen in Fig. 8, the fuel would be deposited approximately at' the longitudinal center of the fire box. These forms-of plates will be used according to the needs of the engines which vary greatly in this respect. WheIi desired the chute may be thrown up on its pivots out of the way, the foldingportion 24 moving on its pivot 25 so as not to strike the roof of. the cab.

When from any cause it should bedesired to adapt the locomotive for hand firing, the hopper is first removed, then the auxillary door can be'swung around on its hinges, as indicated in Fig. 12, and the casing 53 with the rotary distributer thrown up, as indicated in sa1d v1ew,'or, if desired,- the entire auxiliary door with the distributencan be entirely removed by withdrawing the pin'tle 57, and the regular fire door substituted therefor.

A door calrbeswung on its hinges and the distributer casing thrown intothe desired position by simply disconnecting the chain 45 and-separating the connections between the links 87 and the slotted ends of the bell crank levers. l v From the above it'will'be seen that I have devised a simple,.cheap, econom1cal,efiic1ent and reliablemechanical stoker, which can be .readily applied and which occupies minimum space, and while the structural embodiment of theinvention as herein disclosed is what I at'the present time consider preferable, it is evident that the same is subject to changes, variations'and modifications in detail, proportlons' and relatlve arrangement of parts vwlthout departing from the spirit of the invention or sacrificingany of its advantages. I, therefore, do not wish'nor-intend to limit myself to' the precise construction, etc., hereinbefore described and shown, but reserve the right to make such changes,

variations and modifications as come propthe scope of the protection bars and removable, and interchangeable blades, each blade having opposltely dlsposed acting faces inclined with relation to the bar andto .each. other.

' 2. Ina mechanical stoker, the combination of'a furnace having a fire door opening a fire door for said opening hinged to said furnace and adapted to be swung laterally,

a rotary distributer and a casing'therefor t1on of a furnace having a fire, door open ng a fire door for said opening hinged to the pivotally mounted on the fire door to swing upward over the fire door and against the boiler front when the door is opened, and

means for rotating said distributer.

3. In amechanical stoker, a rotary distributer having an'axis, a casing for said distributer withend openings, means for rotat ing said distributer in either direction to throw the fuel'well'into the fire box or to deposit it adjacent the door opening and movable closures at the ends of said distributer casing and revolub'ly mounted on the axis of the distributer for closing said openings.

4. In a mechanical stoker, the combination of a furnace having a fire door openingflaafir'e door 'for said opening hinged to the furnace and adapted to swing laterally, a

rotary distributerhaving an axis and blades for direct engagement with the fuel, a casing for said distributer hinged to the fire door 'to swing upwardly against the furnace front when the door is opened, said casing pro,

vided with end openings, and revoluble closures for said openings mounted on the axis of the distributer. I 5. In a mechanical s toker, the 'combination of a furnace having a fire door opening a rotary distributer, a fire door for said openfing hinged to the furnace and'adapted to swing laterally, a casing pivoted t9 swing upward against the furnace front when the fire door is opened, and having end openings, 1 ahopper; opening'into the casing, and 010- sures for the said openings mounted on the axis of the 'distributer at'the ends'of the casing. v

6. In a mechanical toker, a rotary. distrib- 'uter, a casing therefor with end openings,

closures for-said openings, and means for s1multaneously actuating said closures.

- 7. In a mechanical Stoker, a rotary distributer, a .casingtherefor with end openings,-

adivided hopper communicating with the casing through said openings, closures simultaneously actuated for controlling said openings, and actuating means connecting said closures. y V 8. Ina mechanical stoker, a rotary distributer, a casing thereforwith end openings, a divided hopper communicatin' withthe casing through said openings, c osuresf for said openings, means for revolubly mounting saidclosures, and means connecting said closures for. simultaneously actuating them.

' 9. In a mechanical 'stoker, a pivotally mounted casing, a rotary distributer therein and movable therewith, and single means.

mounted above the fire door for continuously revolving and giving it varying speeds and for reversing the direction of rotation thereof.

10. In a mechanical Stoker, the combina 7 furnace and adapted to swing laterally, a continuously revoluble distributor, a casing therefor hinged to the fire door to swing upwardly against the furnace front when said door is opened and having end open- -1ngs and a movable door, and means revolubly mounted on the axis of the discontinuously revoluble distributer mounted opposite to the fire door to swing upward over said door against the' furnace front when said door is opened and having a mov-- able door whereby inspection of the fire is afforded and simultaneously actuated closures.

12. In a mechanical s toker, the combina tion of a furnace having a fire door opening a fire door for said opening'hinged to the furnace and adapted to swing in a horizontal plane, a rotary distributer hinged to said door to move verticallyover the fire. door against the furnace front when said .tributer is mounted, and a hopper removably supported in juxtaposition to and partially upon said casing, opposite the fire door.

l4. In a mechanical stoker, the combination of a furnace having a fire door opening, a fire door for said opening hinged to the furnace and adapted to be swung laterally, a rotary distributer, a casing therefor pivotally mounted to swing upward over the fire door against the furnace front when said door is opened, a door for said casing opposite the fire door and provided with a damper and simultaneously actuated closures at the ends of the casing.

15. In amechanical stoker, a rotary distributer, a hopper, a chute pivotally mounted above said hopper, to swing upward and emptying into the hopper, and means for automatically oscillating the chute. Y

1-6. In a mechanical stoker, a rotary distributer,.a hopper partially embracing the same, a chute having its dischar e end resting on the hopper, and means or hinging the chute, and a cross bar on said chute adjacent its hinge.

l7. In a mechanical stoker, an elevator, ahopper, a chute resting on the hopper, means fo'rhinging the chute upon the upper end of the elevator, and means for automatically oscillating the chute.

. 18. In a mechanical stoker, an elevator, a divided hopper, an automatically oscillated chute resting on the hopper, means for hing.-

ing the chute upon the upper end of the elevator, and a movable fuel deflecting plate at] the discharge end of the chute adjustable to deflect the fuel into either portion of said hopper. r

19. Ina mechanical stoker, an elevator, a hopper, a hinged chutemounted at-the upper end of the elevator and having a hinged portion delivering into the hopper, and means for oscillating the chute, located at the hinged end thereof. Y

20. In a mechanical stoker, a divided hopper, a chute having its discharge end slid- .ingly mounted on the hopper and provided with a diverter near its discharge end mov- 7 able to deflect the fuel into either portion of said-hopper, a cross bar above the side walls of the chute between said diverter and the receiving end of the chute, and means for oscillating said chute. I

21; In a meohanicalstoker, a divided hopper, a chute having its discharge end slidingly mounted onthe hopper and provided with a pivoted diverter near its discharge end movable to deflect the fuel into either portion of said hopper, a cross bar above the side walls of the chute between said diverter and the receivin end of the chute, and means for oscillatmg said chute.

22. In a mechanical stoker, a revoluble distributer, a hopper over the same a chute having its discharge end supported over said hopper, means for oscillating the same,

and a roller upon which the free end of the.

chute is mounted to oscillate.

' 23. In a mechanical stoker, a revoluble distributer, a hopper mounted thereover, a chute, means for oscillating the same, a hopper and a roller on the hopper on which the free end of the chute is supported, the free end of said chute being hinged.

24. In a mechanical stoker, 'a' conveyer, a hopper, an interposed oscillatory chute having one end slidingly supported upon the hopper and the other end disposed beneath the upper end of said conveyer, a rotary distributer b'eneath said hopper, and means for actuating the distributer, conveyer and chute simultaneously.

25. In a mechanical'stoker, a hopper, a tender, a substantially vertically disposed conveyer disposed'at the forward end thereof, means for actuating the. conveyer, a pivotally mounted chute above said hopper having one end slidably supported upon the hopper, and connections for agitating thesame by the conVeyer-actuating means.

26. In a mechanical stoker, the combination of a furnace having a fire door opening a fire door for said opening hinged to the furnace front to swing laterally, a substantially .vertically disposed conveyer, a hopper, an interposed chute pivotally mounted above said hopper with its free end slid-' ingly supported on the hopper, a distributer casing, and a rotary distributer carried thereby to swing upwardly against the furnacefront. when the fire door is opened,

whereby the same may be moved to allow of hand firing, and means for continuously rotating the distributer. I

27. Ina mechanical stoker, a

ofthe longitudinal axis'of the distributor, means for revolving the same, a substanreversible rotary distributer with partition transverse tially vertically disposed eonveyer' ac tuated from said means, and means for throwing the conveyor out of operation to stop' the feed of fuel to'the'distributerand allowing 5 the dist'ributer to revolve.

28. In a mechanical Stoker, a reversiblerotary distributer, comprising a hub, arms radiating therefrom, rigid bars carried by the outer ends of said arms parallel with the o hub, fuel distributing means on the outer ends 'ofsaid bars, those on each bar being oppositely disposed, and plates 7 at right angles to said hub and connecting adjoiningbars adjacent the center of, the leng&of"

5 said bars.

' 29. In --a mechanical stoker, a reversible rotary distributer, comprising a hub, arms radiating therefrom, bars-carried by the outer ends of said arms parallel with the i hub, platesatright angles .to said hub and 2) connecting adjoining bars [adjacent the center of the length of said bars, and plates removably mounted u on the outer ends of said bars and angular y disposed with their outer surfaces angularly, disposed in-oppo- 5 site directions. Signed by, meat Washington C. this Qth day of November 1909.