US2398508A - Stove - Google Patents

Description

April 1946. w. E. SHOEMAKER 2,398,508 7 STOVE- ll Sheets-Sheetl Filed June 18, 1942 INVENTQR IfifliamEShqema/ien HIS ATTORNEY.

April 16, 1946.

w. E. SHOEMAKER 2,398,508

STOVE Filed June 18, 1942 11 Sheet's -Sheet 2:

INVENTOR, ml Ziam/EJ/wemaker.

BY 4 Wa L" HlS ATTORNEY.

April 16, 1946.

W. E. SHOEMAKER STOVE Filed June 18, 1942 11 Sheets-Sheet 3 H I 5 ATTORNEY.

April 1946- w. E. SHOEMAKER ,508

STCVE Filed June 18, 1942 11 Shets-Sheet 4 INVENTOR H is ATTORNEY.

' April 1946. w. E. SHOEMAKEl- 2,398,508

's'rovrs Filed June 18, 1942 lISheets-Sheet 5 H I S ATTORNEY.

Ap ril 16, 1946. w. E. SHOEMAKER STOVE Filed June 18, 1942 ll Sheets-Sheet 6 INVENTOR mllz'arwflfioamakev I BY HIS ATTORNEY.

April 16, 1946.

Filed June 18, 1942 W.- E. SHOEMAKER STOVE 11 Sheets-Sheet 8 .Hls ATTORNEY.

April 16, 1946.

w. E. SHOEMAKER STOVE Filed June 18, 1942 ll Sheets- Sheet 9 J 496 i l ngl' H 515 5g] INVENTOR mllliamfllzoemakec April 16, 1946.

W. E. SHOEMAKER STOVE Filed June 18, 1942 11 Sheets-Sheet 11 as ATTORNEY.

Patented Apr. 16, 1946 s'royn William Edbert Shoemaker, Freeport, N. Y. Application June 18, 1942, Serial No. 447,521

21 Claims.

This invention relates to stoves, and more particularly to stoves adapted to burn charcoal.

The principal object of the invention is to enable charcoal to be conveniently manipulated and. disposed of with respect to material being cooked. A further object of the invention is to enable the heat from the burned charcoal to be applied to the material being cooked in a uniform manner, and furthermore to apply the heat of the burning charcoal to the top, bottom or side, or any combination thereof, of such material.

Another object of the invention is to enable the charcoal supporting means to be mechanically manipulated from relatively remote positions with respect to the bed or beds of coal.

A further object of the invention is to provide a convenient means of igniting the charcoal and for easily extinguishing :the same.

Still another object of the invention is to provide a unit having a plurality of beds of charcoal, which are mechanically operable, to be positioned in any convenient manner with respect to one another, and with respect to the material to be cooked, such beds of charcoal being readily manipulated by mechanically operated means controlled by the operator in a simple and effh cient manner. a a

As practiced heretofore, cooking by heat from burning charcoal has been a very unsatisfactory process in spite of the fact that charcoal is capable of roducing extreme temperatures, which is often very desirable. As commonly practiced, charcoal burns in a very ineificient manner; the heat given ofi is generally localized so as to be very unevenly applied. Ignition of the charcoal is relatively slow so that some portion of the bed of coals is apt to be almost completely burned out before other portions-are properly ignited.

So far as I am aware, there has been no satisfactory means heretofore for applying the heat from beds of charcoal simultaneously to both sides of an article being cooked, norhas any means been provided heretofore for adjusting the spacing of the beds of coals with respect to each other and to the article being cooked.

Because of the extreme heat of combustion of charcoal when provided with a proper current of air, I have found it preferable to manipulate the charcoal carrying means by mechanically operated devices, which avoid the necessity for use of tongs or other tools. I

By this invention I provide also a suitable housing for the entire mechanism, thereby avoid- Other objects and advantages of the invention will be in part obvious and in part pointed out hereinafter.

In the drawings showing preferred embodiment of the invention and in which similar reference characters denote similar parts:

Figure 1 is a front elevation view of the stove with the cover raised and the outer walls removed to show the internal mechanism.

i ing the elevating Figure 2 is a side elevation looking from the right side of Figure 1, the outer walls being removed to show the internal mechanism.

Figure 3 is a left side elevation of the stove shown in Figure 1, the outer wall being removed.

Figure 4 is a horizontal section of the stove taken along the line 4-4 of Figure 1,,looking in the direction of'the arrows; 31 i Figure 5 is a vertical section'taken along the line 5-5 of Figure 4. and Figure 1, looking in the direction of the arrows. V i Figure 6 is a section taken along the line 6-6 of Figure 5, looking in the direction of the arrows and showing more particularly a portion or the cover elevating mechanism,

Figure 7 is a detailed view of aportion of the mechanism for operating the cover elevating mechanism. The view is taken horizontally along the line I-'| of Figure 6, looking in the direction of the arrows.

Figure 8 is a vertical section taken along the line 8-8 of Figure 4 looking in the directionoi the arrows and showing details of the drive and control mechanism therefor for operating the racks for supporting the articles to be cooked. Most of the other mechanism is omitted for the sake of clearness.

Figure 9 is a front elevation only of the rack raising mechanism and aportion of the controls therefor.

Figure 10 is a plan view of the rack raising mechanism, the section being taken along the line [IL-l0 of Figure 9, looking in the direction of the arrows.

Figure 11 is a, front perspective view of the racks removed from the stove and placed in their relative positions.

Figure 12 is a detailed view of a nut connectscrew with the shank of the rack. The view is a section taken along the line |2| 2 of Figure 9.

Figure. 13 is a perspective charcoal carrying rills removed from the stove angular view of the and showing the relative positions for one type of cooking, the cover of the upper grill being raised to show the internal construction.

Figure 14 is a perspective view of a suitable form of charcoal cartridge.

Figure 15 is a perspective view of another form of fuel cartridge.

Figure 16 is a vertical view, partly in section, of the igniting mechanism and blower mechanism associated therewith, and in addition shows the drain mechanism for ashand waterfor'extinguishing the fire.

Figure 17 is a horizontal section through the ignition means taken along the line Il-i! of Figure 16 looking in the direction of the arrows.

Figure 18 is a vertical section taken along the line l8-l8 of Figure 1, looking the direction of the arrows showing only the upper grate manipulating mechanism, together with its controls, certain portions of the housing and cover being indicated to show the relative arrangement thereof. V

Figure 19 is a section taken along line l9-l9 of Figure. 18 looking in the direction of .the ar rows and showing only the mechanism for op-.

erating the upper grate. v

Figure 20 is a section taken along the line 20- 20 of Figure 19 looking in the direction of the arrows, and shows details of the drive mechanism thereof and part of its controls.

Figure 21 is a detailed .part in vertical section of a portion of the controls for the rack operating mechanism, shownmore completely in Figure 8. The view is taken along the line 2I-2l of Figure 4 looking in the direction of the arrows.

Figure 22 is a detail of the spit operating mechanism, partly in longitudinal section takenalong the line 22-22 of Figure 4 looking in the direction of the arrows.

Figure 23 is a vertical section taken alon the line 23-23 of Figure22 looking in the direction of the arrows, showing details of speed chang ing gear box for driving the spit and a portion of the mechanism and controlfor raising and lowering the spit.

Figure 24 is a horizontal section taken along the line 24-24 of Figure 23 showing the raising nut for the spit. I W

Figure: 25 is a horizontal section taken along the line 25-25 of Figure 23 showing the gear shifting lever and associated links and levers.

Figure 26 is a detailed view of a control mechanism for operating the spit raising mechanism shown in vertical section along the line 25-26 of Figure 23.

Figure 27 shows in detail the controlling mechanism and drive for the spit raising mechanism of Figure 26 shown in horizontal section along the line 27-27 of Figure 23.

Figure 28 is a front elevation of the spit raising mechanism and drive and the controls,and includes the controls for the spit rotating mechanism. v Figure 29 is an elevation partly in section of the lower grate and mechanism for oscillating it, taken along the line 29-29 of Figure 4. Indi cated above the grate is the spit with its mounting and a fowl impaled thereon.

Figure 30 is a horizontal section taken through the grate along the line 30-30 of Figure 29 looking in the direction of the arrows.

Figure 31 is a vertical section through the lower grate taken along the line 3l-3l of'Figure 9 looking in the direction of the arrows, and

Figure 32 is a plan view of the table of the stove, the cover being removed.

nor posts 42 Referring to the drawings, the stove is adapted to be housed within a suitable cabinet, which in this instance has a framework composed of a base 40 upon which. are upwardly extending corsupporting a table 44 at a convenient height, about waist high for an operator. Intermediate posts 46 are provided to form with the table 44 and lateral braces 48 a front opening which would preferably be provided with a door (not. shown). It is understood that the cabinet will ordinarily be provided with outer walls which might be of sheet metal. They are not shown in this instance as the do not constitute the invention and would obscure the view of the mechanism. .At the level of the table 44 is provided a horizontal grill or fire box 50 (hereinafter sometimes referred to as a grate), which is intended to receive a charge of charcoal, as indicated in Figure 4, Figure 29, Figure 30 and Figure 32, the charcoal being shown at 52. For this purpose the firebox 50 comprises a rectangular -'box open at top and bottom with stationary grate bars 54 forming a bottom support for the charcoal (Figure 13). The side walls 56 are adapted to rest upon tracks 58 (Figure 30) upon which the grill slides, as will be described hereinafter.

Below the grill 50 is suitably mounted a box or chamber 60, for the purpose of receiving anything which may drop from the grill. Because of its position, the chamber 60 is exposed to great heat and therefore is also constructed to act as an insulating means to keep the greater part of the heat from affecting mechanism within the cabmet. To this end the box 60 is provided with an inner, preferably sloping, bottom wall 62 (Figure 16) spaced from an outer bottom wall 64 and an outer side wall 66, spaced from an inner wall 68 substantially parallel thereto. Between these walls is inserted a suitable heat insulating material !0, such as asbestos.

The sloping bottom '62 at its lowest point is pro vided with an outlet 12 fitting into a similarly shaped nozzle 14 of the lower bottom wall 64, to which is attached a flexible conduit 16 leading to a reservoir 18and detachably attached thereto by a suitable connection 80. Preferably the reservoir is arranged to be removable for the purpose of emptying it and is, therefore, provided with a handle 8| by which it may be carried. Reservoir l8 preferably rests upon the cross member 48 of the cabinet frame and is supported thereby. Means is provided for initially igniting the charge of charcoal within the firebox 5!]. For this purpose two perforated pipes 82 are mounted horizontally within the box 60, extending through the end wall thereof and clamped thereto by means of lock nuts 84. Outside of the box 60 the pipes 82 join to a T '86, to which is connected a pipe'88 connected to hand pump 90. A supply of alcohol is adapted to be stored Within a tank 92 and is withdrawn therefrom through a pipe 94 and check-valve 96 to the pump 90. The suction of the plunger 98 of the pump 9!) draws a charge of alcohol from the reservoir 92 and the pressure of the plunger On its pumping stroke discharges such alcohol through check-valve 9'! into the pipe 88 and perforated pipes 82. Preferably the perforated pipes 82 are wound with asbestos I00, partly for the purpose of forming a wick to receive-th alcohol and partly for the purpose of insulating the perforated pipes 82. Ignition of the alcohol in the wicking I00 is produced by suitable discharge of electric current across a gap formed by a pair of electrodes I02 mounted adjacent to the pipes 82 on the walls of the box 60.

I to the firebox The lead wires I04 attached to the electrodes I02, lead through a cable I06 to a combination vibrator and spark coil I08 associated by means of the wiring H and switch II2 (shown diagrammatically) with a suitable source of electric current (not shown) associated with the mains I I4.

Means is provided for initially providing a forced draft to accelerate the combustion of the charge of charcoal within the grill 50. To this end there is provided a blower N6 of any well known type, adapted to discharge through a'con duit II8 attached at the orifice I20 in the end wall of the box 60. A suitable source of power is adapted to be applied to a pulley I22 associated with a cone clutch I24 and suitable gears I26 and I28 with the drive shaft I30 of the blower II6. Shaft I30 is suitably journaled in brackets I32 and I34, mounted on a base I36, supported by the corner posts 42 and the upright 46 (Figure l).

The draft in the conduit H8 is adapted to be regulated by means of a damper comprising a plate I38 slideable in a slot I40 formed between flanges I42 and I44 of the conduit II8. For controlling the sliding of the plate I38 in its slot I40, the end of the plate is provided with a pin I46, projecting downwardly therefrom and adapted to engage the slotted end of a lever I48 formed integrally with an upwardly extending rod I50 extending to the upper table 44. A hand crank I53 is provided to turn the rod I50.

The cone clutch I24 consists of a pair of complementary cone elements I52 and I54 which are adapted to slide into and out of engagement with each other, thelatter element being provided with a circumferential groove I56 engaged by yoke I58 pivoted on the base I36 as at I60 and pivotall attachedat its other end to one end of a bell crank I62 provided with a pivot I64. The other end of the bell crank I62 is rotatably attached-at I66 to the lower end of rod raised or lowered the yoke I58 is caused to rock backward and forward to engageand disengage the clutch members I52 and I54. The pin suificiently long that it will remain in engagement with the lever I48 as the rod i50 is raised and lowered. In order to hold the clutch members I52 and I54 in engagement there is provided a ledge I68 upon which the crank l53,is adapted to rest in its raised position. It will be noted that when in its raised position and turned so as to engagethe ledge I68, the damper plate I38 is in an open, position. Further opening of the damper may be accomplished with the crank I53 restin on top of the ledge I68. 2 This invention provides a second firebox or grill I10 (Figure 13) somewhat similar in construction 50, being provided-with solid side walls I12 and I14 and end' walls I'IG and I18 and transverse rods I89 at the bottom to support suitable charge of fuel. On the box I10 is provided a cover I82 hinged to the rear side wall I14 and adapted to be held in place by a latch I84 on the front wall front edge of the cover I82. The cover isadapted to hold the charge of fuel in place whilethe box is being manipulated as described hereinafter.

Means is provided to manipulate the'firebox I10 so that it'will assume various positions with respect to the lower box 50. Under some conditicns it is desirable that the box I10 be main-- tained parallel to the box 50 and spaced therefrom as shown in Figure 13, and under other conditions it is desirable to placethe box I10 in a more or less vertical position, for instance as shown in Figure 1 and Figure 3. For this =pur- I50 so that as the rod is I46 is pose' the box 110 is provided witha pairjof outwardly' extending itrunnions I86 mounted on the opposite end walls- I16 and I18 which are adapted to engagea pair of arms I90, the. ends of the arms being hooked, as shown at I92so that'while the trunnions I88 normally are supported by the arms :I90ynevertheless they maybe lifted out withthe b'o'xI10in a direction generally perpendicular to the length of the arms I90. The arms I90 are mounted on a rigid frame I94 at their other ends and also at points intermediate to their ends; .Atthese points of attachment are providedrollers I98 and 200respectively, to ride in suitable tracks I96. The rollers I98 and 200 are held in place by and journaled on suitable stud"; bolts 202. It will be understood that the frame I94 and the arm I90 attached at either side thereof form a rigid structure. Adjacent to the top of the tracks I96 are a pair of guiding cams 204 over which the upper pair of rollers 200 are adapted to roll in such a path that the inclination of the frame I94 and the armsv I90 is changed from vertical through all intermediate positionsto horizontal, as indicated in broken lines in Figure 18. In the last named position the box I10 rests parallel to the grill 50, in this instancelying directly upon it. Normally the fire box I10 tends toassume a vertical position because the trunnions' I38 are slightly above the center of the boxsides. As the arms I90 are caused to assumea more horizontalv position the box I10 is also caused to follow being tilted by means of a projecting arm 206 mounted at the side of the end'wall I16 and engaging one of the arms I90. As the lower edge of box I10 touches the frame 324, the tilted box then tends to lie down'upon the forward movement of arms I90. {Upward and downward. travel of the frame 564 in the tracks feed'screws 208'prcvided with nuts 2I0 spaced from eachother by means of a cross member 2I2 and coupled to lugs 2I4 on the lower edge of frame I94'by means of links 2I6 having pivots 2I8 in the nuts 2I0 and pivots 214.

At theirlowerends the screws 208 are jour naled inbrackets 222-"mounted'on cross-brace 224. Downward thrust of the screws 208 is taken by collars 225an'd'the"upward thrust is opposed by the bevel gears226, which are suitably attached to thescrew s 208. A'transverse shaft 228, also jOurrialed-in the brackets 222, is' pro-. vided with bevel gears-230 meshing with the gears chronous and inthe samedirection. v

226 so that rotation of both screws 208 is syn- "*Shaft1228 also* provided with "a driving sprocket232 connected by means of 'a chain 234 with a sprocket 236 formed integrally witha cone clutch member 238 (Figure '20), The sprocket 236is adapted tobedriven alternativelyin either direction and'to that endthere is provided a sec ond clutch" member 239,having a sprocket 240 connected by a c'hain 242' with a sprocket 244 formed on the clutch member 238. Complementary cones 246 and248 are provided- for'theclutch members 238 and 239 respec'tively,'and are adapted to be engaged alternatively by suitable 'yokes 250 and 252, respectivelyyof a' lever254 centrally pivoted as at 256*to frame members 258 and 260. Clutch members 238 and 246 are mounted on a shaft 26! provided with a pulley 262 driven by abeltl 264 from the'pulley 266 of the main motor-268 which is preferably supported on a horizontal cross member-2100f the frame of the cabiframe 324 upon. further I96 is produced by a pair of f 220 in the lu s ating mechanism).

on and adapted to be rotated by shafts 212. and 26! respectively. Shaft 212 is driven in a reverse direction'with respect to shaft 26l, by a pair of gears 214' and 216 meshing with each other and mounted on the shafts 26| and 212 respectively.

The pivot shaft 256 of the lever 254 is'provided with an arm 218'by which the lever 254' is operated. At its swinging end the arm 218 is ate tached to a link'280 connecting with an arm 282 mounted on a' vertical shaft 284, having at its upper'end 'an arm 286. A link 288 connects arm 286 with a manually operable lever 290 pivoted at its'lc'wer end at a rod 292 (Figure 1). The grip 296 is provided for the lever286.

Means is provided for automatically stopping the raisingand lowering of the frame I94 and for this purpose the lever 254 is provided with an arm 388 extending at right angles thereto. At its outer end the arm 360 is connected by means of a link 302 to an arm 304 mounted on a shaft 366 rotatably supported by a bracket 308. Also upon the shaft 306 is mounted a horizontal arm 3H1 pivotally connected with a vertical rod 3l2, passing through a hole in a plate 3|4 mounted on the crosspiece 2l2. Atlower stop 316 is carried by the rod 3l2 and is of such size as to be unable to pass through the hole in the plate 314. An upper stop 3l8;preferably a nut threaded for adjustment, is carried by the upper end of the rod 312 and is likewise of a size to prevent pass ing through the hole in the plate 314.

A pair of racks (as shown in Figure 11) constitute means for performing various functions and-more particularly, for supporting food to be cooked'on thegrill and for supporting the upper firebox I16; Asshown in that figure, the lower rack comprises are'ctangular frame 320 intended to'be positioned horizontally with respect to the table 44 and provided with downwardly extending legs 322st either side, bymeans of which the rack is manipulated; The upper rack consists of a rectangular frame324, in this instance, of the'same'size as the lower frame 320, and

' adapted to register with it. Frame 324 is alsoprO- vided with downwardly extending legs 326 by means'of. which it is raised' and lowered, as well as supported." Legs'326 differ from legs 322 in that they are mounted at the back corner of the frame 324 soas to clear the lower frame-320. Figure 11 illustrates the general relative position which the racks assume in the stove. Themannerin Which the-racks are supported and manipulated is shown more particularly etc 12; inclusive;--

Referring more particularly to Figures 8 and 9, (which for thexpurpose of'clarification show substantially nothing but the racks and their oper- 3The legs 322 are slidable in shoes 328 which prevent tilting of the frame 320. PreferablyQthe shoesl328 are-rigidly attached as by welding to-an'gle irons: 330 extending horizon-v tally: from front to rear of the frame and 'at-' tached to the uprights 46. The legs 322 are adapted to be raised by feed screws 332 provided with nuts 334riveted to the legs as at 336. Screws 332 are supported below by right angle brackets 338 mounted on asuitable cross piece 340 and at their upperends they are journaled in brackets 342. At their lower ends the elevating screws 322 are provided with bevel gears 344 meshing with bevel gears 346 mounted on a horizontal shaft 348, also journaled in the brackets 338. Rotation of the shaft "348 is produced by mechanism shown in detail, moreparticularly' in Figure and conin Figures 1 to 4, inclusive, and

2,398,508, net. v Clu'tch members 239 and 238 are mounted sistingof cone clutches 358 and352 mounted on shafts 26! and 212 and coupled together with sprockets 354 and 356, respectively, and a chain 358' Cone clutch 356 is also provided with a sprocket 368 which by means of a chain 362 drives a larger sprocket 364, pinned to the shaft 348. Upward or downward movement of the rack legs 322 is produced by means of the engagement alternatively of the cone clutches 356 and 352, which is accomplished by means of the lever mechanism comprising a vertically pivoted lever 366, having a vertical shaft 368 journaled in the cross-pieces 258 and 260, and provided at its lower end with a sidewardly extending arm 318. A link 312 con- 462 engages the legs nects arm 310 with an arm 313 on a vertical shaft 314 provided at its upper end with an arm 316 attached by link 318 to a manually operated lever 38!]. A grip 382 is mounted on lever 380, which is pivoted at its lower end on shaft 292, preferably beside lever 290.

An automatic stop mechanism is provided to automatically prevent the rack 32!) from raising or lowering too far. This mechanism cooperates with the clutches 356 and 352 and comprises a lever 384 formed integrally with the arm 366 by which the clutches are thrown into and out of engagement. Actuation of the arm 384 is accomplished by means of a connecting link 386 attached at its other end to a vertical arm of the bell crank 388 (Figure 8), the horizontal arm 330 of the bell crank being attachedto a Vertically extending rod 362 passing through a hole in one of the nuts 334. An abutment 384 is provided below the nut 334, and a nut 396 is carried by the rod 392 aboveithus, as the nut 334 raises or lowers it engages the nut 396 or the abutment 394 to disengage the clutches 350 or 352 respectively.

A similar operating mechanism is provided for the upper rack 324, which is associated with the legs 326. Accordingly, shoes 398 supported by the cross pieces 338 slidinglysupport the legs 326 and vertical feed screws 460 provided with nuts 326. Screws 460 are journaled in brackets 464 at their lower ends and at the brackets 406 at their upper ends. Bevel gears 408 at the lower end of the screws 400 engage bevel gears 4|!) on a cross shaft 412 similar to cross shaft 348 and are actuated by a sprocket 4| 4 similar to sprocket 364. A chain 4l6 associates the sprocket 4 with a mechanism entirely similar to the unit shown in Figure 10 mounted on the shafts 26! and212 beside the previously described unit. The front clutch of this unit is shown at 418 (Figure 1) and'is actuated by a lower lever 420 (Figure 8) connected by a link 422 to the lever 424 of the vertical tubular shaft 426. At the upper end of the shaft 426 is provided an arm 428 actuatedwby a link 43!] associated with the lever 432 pivotally mounted on' shaft 292 and provided with a grip 434. As shown in Figure 9, the lever'432 is positioned between lever 298 and lever 386. 1 Also a stop mechanism for automatically limiting upward and downward movement of the legs 326 comprises a'vertical rod 436 provided with lower stop 438 and upper nut 440 adapted-to be engaged by the nut 462. The clutch mechanism is actuated through the medium of a bell .crank,442 and a link 444 associated with the arm 446 (Figure 1) of the clutch mechanism. 7

For the sake of compactness, the shafts 314, 426'and-284 are concentrically-disposed and for this purpose the two last aretubes and the first other. For the sake of clearness, the diameters are shown greatly exaggerated in the drawings.

For certain types of roasting it is often con sidered desirable touse a rotating spit. Such a spit is provided by this invention and comprises a pair of parallel pointed rods 450 supported on a pair of cross pieces 452 mounted on a shank 454. Shank 454 is adapted to be supported by and rotate within a hollow head 460 forming the upper end of a cylindrical casing 462. A pair of bevel gears 464 and 466 are adapted to transmit the roa tation to shaft 454 from a tubular shaft 468, concentrically disposed within the case 462. Bevel gear 464 is provided with a pin 458 to receive the slotted end of shaft 454 so that the spit is removable. On bevel gear 464 there is a bearing portion 416 cooperating with the bearing 412 at one end of the head 460. The end of the shaft 454', which extends through the bearing end 410 of the bevel gear 464 is provided with a peripheral groove 414 engaged by a held in place on the end of the head 460 by a stud 418. Bevel gear 466 has a shank end480or bearing portion fitting the bearing 482 at the base of the head 460 and pinned to the tubular shaft 468. Casing 462 is slidable upwardly and downwardly in a socket 464 mounted in the table 44, the socket being of such a shape as to receive the head 460 (with the spit removed) in its depressed position as shown in Figure 4. The socket 484 is provided with approximate cross section of the tubular casing 462 to act as a steadying support for that casing. At the lower end of the casing 462 is provided a shoulder 4'11 havinga peripheral groove 413 into which fits a fork 415 is raised and lowered. At the shank end of the fork (Figures 23 and 24) is provided anut 411 engaging an elevating screw 419. Elevating screw 419 is journaled as at 481 in a block 483 mounted on a horizontal plate 485 and is provided at its lower end with a bevel gear 486, keyed or other-, wise suitably attached thereto. A pair of bevel gears 488 and 490 for. driving the screw 419 are mounted on stub shafts 492 and 494, respectively, meshed with gear 466 and are adapted to rotate in opposite directions (Figure 2'1) The stub shaft 492 is journaled in vertical plates 496 and 498 supported by the plate 485, spaced apart to accommodate a sprocket 500, also pinned to the shaft 492. A similar sprocket 502 connected by chain 501 to sprocket 500 is provided with a tubular stub shaft 504, journaled in the plates 496 and 498 is keyed to a cone 506 of a reversing clutch (Figure 27.). The other cone 568 of the clutch is likewise mounted on a through a pair of plates 512 and 513 similar to plates 496 and 498 but on the opposite side of the screw 419. The sprocket 514 is keyed to shaft 510 and connected by a chain 516 to sprocket 518 mounted on shaft 494. a shaft 522 passing through the hollow shafts 504 and 518 and is adapted to be driven by shaft 522, there being a key 524 engaging a keyway in the tubular cone 520 which permits endwise sliding of the cone but prevents relative rotation therebetween. Shifting of the tubular cone 520 is produced by means of a yoke 526 pivoted at a lug 528 on the base plate 485 and extending vertically, terminating in a pair of horizontally disposed arms 530 and 532, the former being attached by means of a link 534 to a bell crank 536 pivoted below the table 44 and extending therethrough to terminatein a grip portion 538. The

keeper 416 pivotally tending rod 549 passing through 2. lug 542 mounted. on the side of thenut 411. A lower stop 544 and an upper stop 546 in the form of a threaded nut are provided on the rod 540 and are adapted to be engaged by the projection 542 to cause the yoke 528 to be pushed to the right or left (Figure 28) to disengage the clutch.

Means is provided for rotating the tubular shaft 468 and tothis end the shaft is provided with a plate 54! welded or otherwise, suitably attached to the bottom of the shaft and having a square hole 549 therein (Figure 24) to engage a square drive shaft 550 adapted to telescope within the shaft 468. y v 1 Shaft 550 is adap-tedto be driven at a variety of: speeds and to this end is associated with a change gear mechanism, shown more particularly in Figure The change gear mechanism is supported by a rectangular frame 552 and comprises a shaft 554 journaled in the ends of the frame 552 and having three spur gears 556, 558 and 56 9 of progressively increasing size in the order mentioned keyed thereto. A shifting shaft 563 parallel to shaft 564and likewise journaled in the ends of the frame 552 is provided with gears 562, 565 and 566 ofprogressively decreasing size a hole in its bottom of the by means of which. casing tubular shaft 510, passing Cone 520 is mounted on J in the order given, so arranged as to slidably engage the gears 556, 558 and 560, respectively, as the shaft 563 is caused to slide axially, as is understood in the art of change gears.

MAt the end shaft 550, which extends through the frame 552, there is provided a bevel gear 566 meshing with ,a bevel gear 510 slidingly engaging the .shaft 563 as by means of the key 512. Shifting of the shaft 563 is produced by means of a lever 514 (Figure 25) engaging at a rounded forked -,end"516, theback-of gear 562 and a collar 528 servingas abutments. Intermediate its ends, lever 514 is 'pivoted on a bracket 580 and is controlled from its end opposite the forked end 516 by a lever 582 pivotedat its lower end at a bracket 584 and extending upwardly through the table 44 toposition' to be grasped by the operator by the grip. 586. 1

The shaft 554 is provided with a bevel gear 594 meshing with a bevel gear 596 on the end of a vertical shaft 598, the driven shaft of a suitable speed reduction unit 600 of any suitable type having a driving'gear 602 engaging a driving gear 604, preferably mounted on the end of shaft As :shown in Figure 1, the speed reducing mechanism is mounted on a cross piece 606 between the uprights 42 and 46, and upon the top of this member is mounted the frame 552 of the change speed mechanism. Atop the frame 552 is mounted the base plate 485, also attached to .theuplights 42 and 46 to support the clutch for operating the spit elevating screw.

Means is provided for oscillating the grid 59 upon its supporting tracks58 and for this purpose the grid 50 is provided at one of its end walls 56 with an outwardly extending lug 610 to which ispivotally attached a connecting rod 612 having a crank pin 614 mounted on a rotatable disk 616. Disk 616 forms the head of a stub shaft 618 rotatably supported in the cross piece 620 of the frame and connected by meansof a cone clutch 622 to a vertical shaft 624, having a bearing 626 mounted on top of the change gear frame 552. A sprocket 628, pinned to the shaft 624, is coupled by means of a chain 630 to a similar sprocket 632 likewise pinned to the shaft 550. Rotation of the shaft 550 causessimilar rotation other arm 532 is provided with an upwardly :ex- .15 of the shaft 624. Engagement and disengagement of the cone clutch 622 is controlled by the yoke lever 634, pivoted as at 636 on a cross brace 638 :and adapted to be moved up and down by means of an arm 646 extending upwardly through the table 44 and having a cam following portion 642'adapted to slide up and down on the cam 644, mounted on the table 44. Thus as the cam following portion or grip 643 is moved to the right XFigure 29) the yoke lever 634 causes the clutch 622 to engage. A similar motion of the cam 644 to the left disengages the clutch, as will beafiparent.

The stove is provided with a cover or hood which serves to enclose the upper part of the mechanism when not in use, and when in its raised position operates to help ventilate and carry off the fumes of cooking. The cover comprises an upper horizontally extending hood 656, preferably of double wall construction, filled with insulating material as shown at 652, between the inner and outer walls 654 and 656. The hood terminates at the rear of the upright section 658 which ends at about the level of the table 44 when in the uppermost raised position. At the lower edge 666 of the upright portion 658 of the cover are mounted a pair of channels 662 extending horizontally and welded or riveted to channel 664 mounted between the inner and outer walls of the portion 658. Channel 662 forms a support for downwardly extending legs 666, having also a lower brace 668. The legs 666 providea, means for supporting the cover 656 from within the main frame of the stove. The legs 666 are adapted to slide within forward and rearward vertical channels 616 and 612, respectively, mounted on the frame of the stove. Upon crossbrace 668 is attached apair of nuts 614 threaded to engage a pair of elevating screws 616 upon each side of the stove, by means of which the cover is'raised and lowered. All of these screws are adapted tooperate in unison and to this end they are provided below with bevel gears 618 (Figure 7), those of the forward screws being coupled by means of a shaft 686 having bevel gears 682 meshing with the gears 618, and those of the rearmost elevating screws being engaged by bevel gears 684 on stub shafts 686 having sprockets 688 coupled to sprockets 696 On the shaft 686 by means of chains 692. Suitable bearings 694 and 696 for the shafts 680 and 686, respectively, are provided on the base 698 'of the stove. Rotation of the screws 616 is produced by means of a sprocket 166 on the shaft 686 connected by means of a chain 162 with the sprocket 164 mounted on the outer cone of 5 clutch 166 on shaft 26!. A corresponding cone clutch 168 is mounted on shaft 212 and is coupled with clutch 166 by means of a sprocket 1|6 joined with sprocket 1 I 2 on clutch 166 by means of a chain 1| 4. a

The sliding cones of the clutches 166 and 108 may be operated by a lever-H6 provided with an arm 118 by which it is manually controlled. To

'this end a link 126 connects an arm 1| 8 to a series of levers and links, including bell crank 122, link 124, bell crank 126, link 128 to a manually operable lever 136 pivoted as at 132 on a bracket 134 on the cross brace 136. A safety stop is provided in the form of a rod. 138 having upper and lower abutments 146 and 142 respectively, adapted to engage a projection 144 on one of the nuts 614. The rod 138 is attached to a, bell crank 146 having a link 148 connecting with an arm 156 operatively attached to the lever 116 by the vertical shaft 15l.

frame of the stove.

264 which guide For ventilation; adu ct 152 is provided formed by a sheet ofp ressedmetal 154 attached 'to the rear wall of the? upright portion 658- and preferably weldedithereto, being bent at the lower extremity 156 to register with a circular opening 158 therein. At the upper wall of the cover portion 656 and rnou'nted on the inner wall 654' is a box portion'iformedby a removable lowerplate 160 mounted on a three sided b'o'x portion 162 provided with louvres 164 to admit bad air and fumes from below the cover 656. Within the box portion 162 and'parallel to it are two parallel rows of pins '166,'rathericlose together, like pickets of a, fence, between which is adapted to be stuffed'wads of steel wool, or similar material, to act as a filter or strainer to catch grease or solid material drawn through the louvres 164 and into the duct 152.

To provide a draft in the duct 152a suitable fan 168 is provided in a cylindrical housing 116 formed in this instance integrally with the rear Wall 112 of the'housing supported by the stove frame. The motor 113 for driving the fan168 is operatively attached thereto by means of a vertical shaft 114 provided with suitable bevel gearing 116 and 118, the latter being enclosed in a box 186 on the wall 112 and the former being housed in a casing 111:

Suitable fuel to be burned in the grills 56 or I16 is indicated'in Figures 14 and 15. In Figure 14 is shown a preferred form in which'isprovided a cartridge 182 comprising a plurality of chunks of charcoal 184 sawed to substantially the same length and laid with the cracks formed by the grain extending in the direction of the'short dimension of the cartridge. .The whole may be enclosed in a suitable wrapper 186 such as Cellophane. The object of placing the charcoal in this way is so that upon ignition of the'charcoal as much'surface. as possible will burn simultaneously. In this way the charcoal will be ignited in the quickest possible time and Will giveo-if the greatest amount of heat. 1 Figure 15 is intended to' illustrate a cartridge which may be a molded block 186'formecl of powdered charcoal with a suitable binder and formed with a great number of perforations 196 extending completely through the chunk. The greater the number of perforations the better, so that as much surface as possible will be burning simultaneously.

In the foregoing, the level at which the cooking operations take place is referred to as the table 44.- A plan view of this isshown in'Figure 32 with sections shown in Figures 29 and 31.

Referring more particularly to Figure 3 2, the table comprises an outer rectangle of angle irons 192 and 194, the former being at the sides and the latter at the front and back. Within the rectangle so formed on each side is a pair of angles 196, these being parallel to the angles 192 but spaced therefrom and terminating at the back at angles 198. At their forward ends the angles to the front angle 164. Interposed 'between the outer angles;196 and angles 192 are mounted the channels 618 which act as guides for the legs 6660f the cover. Likewise, facing the channels 616 and at the back corners are disposed the channels 612, which are the guides for the rearward legs 666. The space between these angles is clear, permitting the lowering of the portion 658 of the cover into the On the innerangles 196i-are attached the cams the rollers 198 and by means lower fire box 50. charge of alcohol is drawn from gasses of which the upper grill I10 is caused to assume its position in front of or over the grill 50. The channels or guides I96 are attached to the angles I96 immediately behind the cams 204.

As shown in Figure 31, the elevating screws 208 are guided by bearing blocks 800 attached to the back of a cross brace 802, suitably mounted betweenthe cams 204. 1 Forwardly and between the angles I96 at the left (Figure 32) is mounted a casting 804 to receive the head slot 806 provides a guide for movement backward and forward of the lever handle 566 for operating the chain gear mechanism.

Directly in front of the casting 364 and between the angles I96 is mounted a plate 803 upon which is mounted the bellcrank 536 operated by the handle 538. The space to the rear. of the casting 804 bounded by the angles I96 and I08 is covered by a suitable plate 8H1.

At the right hand side, mounted between the angles 106, is a casting 8I2 provided with a well BI4, within which are mounted the levers'206, 434 and 382. Also, in the well M4 is mounted the lever I53 cooperating with the ledge I68 formed integrally with the casting 8I2. On top of the angles 196 and extending rearwardly to the angle I98 is mounted a plate 8I6.

Slightly below the level of the plates M and M6 (Figure 29) are mounted a pair of parallel angles 8I6 and 02%) extending rearwardly from the front uprights 46, being suitably attached to the cams 204 and the guides I96.

Upon angles SIS and 820 is mounted a plate 822 provided with a rectangular aperture to receivethe flange of the box 60 which is supported thereby. Adjacent the edges of the box 60 are 46 for supporting the spit. A

mounted the tracks 58 upon which the grill 56 is adapted to slide sidewise. Plate 822 extends rearwardly to the cross brace 824 extending parallel to brace 802 and is attached thereto. Suitable openings 826 and 820 are provided in plate 822 through which the legs 326 of the rack 324 are adapted to pass.

The operation of the stove is as follows:

. It will be assumed that initially the upper grill I10 is drawn back to within thestove, the spit has beenremoved and the supporting head 460 is withdrawn to the position as shown in Figure 4 and that the cover 650 is down on to the table 44 of the stove.

The first operation will be to raise the cover 650 and, accordingly, the lever I30 will be thrown by hand to the right (see Figures 5, 6 and '7). Through the series of levers and links associated therewith (Figure 6 and Figure 7) the clutch I06 is engaged. Electric motor 268 is then started by a suitable switch (not shown). The belt connection 264 and its associated pulley 262 causes rotation of shaft 26I in one direction and shaft 212 in the opposite direction, since they are connected together through the meshing spur gears 214 and 216. Thereupon through the sprocket I04, chain I02, sprocket I06 and shaft 580 the elevating screws 616 are caused to rotate, elevating the cover 650 until the projection I44 on the nut 614 strikes the stop-nut I42, whereupon therod I38 pulling on the bell crank I46 and link I48 returns the lever'1I6 to its neutral position, disengaging clutch I06.

The next step will be to build a fire. For this purpose, several cartridges, preferably of the type shown in Figure 14 or Figure 15, are placed in the To ignite the cartridges a the reservoir 92 by operating the pump plunger 98 and the alcohol is then, by the same pump, forced upwardly through the pipe 88 and pipes 82 on to the ashes tos wicking' I00.

Alcohol on the wicks I00 is ignited by means ofthe spark produced by the electrodes I02 connected to the spark coil I08, the switch II2 being used to close the circuit of the spark coil. Flame from the burning of the alcohol ignites the charcoal very readily.

If desired, a forced draft may be produced by means of the blower I I6 and controlled by manipulation of the handle I53. As has been described hereinbefore, raising of the handle I53 causes the clutch members I54 and I24 to be engaged, whereupon suitable operation of the centrifugal fan I I6 is caused, power being supplied from th'emotor 268, which is connected to the pulley I22 by the belt I23.

Regulation of the amount of draft is controlled by rotation of the handle I53 which causes the damper I36 to open or close the passageway in the conduit I I8. It is generally desirable to keep the fan I I6 blowing until charcoal of the cartridge in the grate 50 is well ignited, so as to give a substantially uniform temperature throughout the entire area of the grate. It is preferred that after the burning charcoal has been well started, the fan II6 be turned off entirely as it will thereafter be unnecessary or even undesirable for proper combustion.

The stove is now in condition for cooking such things as steaks and the like where it is desirable to apply the heat to only one side at a time;

For this purpose, thefood to be cooked, properly supported by a suitable wire grill or the like (not shown) may be rested on the rack 324. For proper cooking of food, it is desirable to hold the food at a proper height above the fire and provision for this is furnished by the mechanism for raising and regulating the height of the rack 324. Such regulation of the rack 324 is accomplished by suitable manipulation of the manually controlled lever 434. Pushing of the lever 434 toward the back of the stove causes engagement of the clutch 4IB which transmits motion from the motor 268 associated with the rotating shafts 212 and 26I through the clutch M8 and associated sprockets and chains to the transverse shaft M2 to turn the elevating screws 400.

The nuts 402 which are mounted on the legs 326 of the rack 324 are adapted to travel by the screws 400 within the limits represented by the stops 438 and 440. rack 324 the lever 434 is returned to its normal neutral position, either by hand or by means of the automatic safety stop mechanism herein-before described, comprising the vertical rod 436 connected to the bell crank 442, whichin turn operates the clutch operating lever by means of the link 444. Lowering of the rack 324 is produced by pulling the manually operated lever 434 toward the operator, whereupon the motion of the shaft 26I is transmitted through the associated mentioned series of sprockets and chains to the shaft M2 to rotate the elevating screws 400 in a direction to cause the nuts 402 to travel downwardly thereby lowering the rack 324. At the desired height, the manually operated lever 434 is returned manually to the central position as before.

For certain kinds of cooking it is desirable that heat should be applied from the side oreven from above the food, for this purpose thegrill or fire box is used. Normallythis box is At the desired height of the fire box 50. If the heat is found shoved away belowthe' level of the table 44 and at the back as shown in dotted lines in Figure 18. This fire box may be brought to a position where it is superposed upon the lower firebox '52 in the position shown'in broken lines in Figure 18, for the purpose of starting thefire to be contained therein. For this purposethe control lever 296 is'pushed toward the back of the stove, whereupon, through the means of connectinglink 28 8, vertical hollow shaft 284 and link 280, the clutch comprising the complementary cones 238 and 246 are pushed into engagement causing the rotation of the shaft 26I to rotate the screws 208 through the medium of sprocket 236, chain 234, sprocket 232, shaft 228 and bevel gears 220 and 230. As thescrews 20 8 rotate, the nuts 2| travel upwardly-and through the connecting links 2I6 pushing the frame I 94 upward also along the tracks I90; When the rollers 200 reach the end ofthe-track 'they ride 7 surfaces of the members 204, and the arms I90, supporting the fire box II0-at its trunnions I88, are inclined'forwardly, more or less depending upon the degreeof rise of the nuts 2I0.

For the purpose of starting a fire in the fire box I10, the latter will preferably be carried forward'to a positionsuperposed upon the lower fire box50. In that position the cover I82 may be raised by releasing thelatch I84. The fire box H0 is suitably charged with cartridges of charcoal of the type shown in Figs. 14 and 15. The charcoal in the fire box I10 should be readily ignited by leaving that box superposed on the insufficient, it may beincreased by inducing a draft by means of the fan H ashereinbefore described. If it be desired to start a fire in the box I 70 only, char- ,coal therein may be ignited by alcoholfiame as described in connection with the starting of the fire in the box 50. Upon ignition of the charcoal in the upper fire box I'Ifl the lid I82 will be closed and latched as greater draft provided thereby is no longer necessary.

There-are several ways in which the fire box I I0 can be used. If it is desired to apply heat on opposite sides of the material to be cooked, the fire box I70 may be supported on the rack 324,.the separation of the upperand lower fire boxes being adjusted by raising-the-upper fire box I by means of the rack 324 in the manner above described. In this case, as -the fire box H0 is raised, the arms I90 remain in their horizontal position as the trunnions I88 lift out of the hooked ends of the arms I90. be cooked is, in this instance,'to be supported by the lower rack 320 which is controlled by the manually operable lever 382, which operates the clutch mechanism shown in Fig. 10 for raising and lowering therack 32 0. I

In many cases it is desirable that firebox I10 should supply heat laterally to'the material to be cooked, in which; case the fire box is supported in the position shown in solid lines in Fig. 18. Also, the box may be tilted forwardly by a slight movement of thearms I90 to a more inclined position. The tilting is caused by the engagement of the sidewardly extending arm 206, with the adjacent arm I90. Normally, the box II0 tends tostand vertically because the trunnions I88 are positioned slightly above the center of the box I10. I

' When cooking before the fire, the spit is used. The first. operation wil1 be to raise the spit 460 'to; the proper-height with respect to the fire box The material to u'.

forward over the guide I10. For this purpose lever 538 is operated to throw the clutch mechanism (Fig. 28) into engagement for the purpose of rotating the elevating screw 419. Throwing the lever 538 to the left causes the screw to rotate so that the nut 411 will rise lifting the casing 482 and with it the head 460. When the latter has reached the height desired the lever 538 is thrown back to neutral position. At this point the shank 454 of the spit is inserted into the head 460 and held therein by the detent 416. In this position the fowl or whatever is to be roasted is impaled upon the pointed rods 450 as shown in Fig. 31.

Rotation of the spit is caused by throwing the change gear mechanism into mesh by means of the gear shift lever 582. As has been described above there are three speeds of rotation and three corresponding positions of the lever and its handle 586. The low speed position of the lever is the furthermost position away from the operator; the high speed position is nearest to the operator and the medium or intermediate speed is between these two positions. The gears are out of mesh at any position between these. Upon shifting the lever 582 to an operating position of the gears, the spit will be rotated. Such motion is transmitted from the gear box by means of the square shaft 550 and its telescoping hollow shaft 468.

To return the spit to its non-operative position, it is merely necessary to throw the gears of the gear box out of the mesh by manipulation of lever 582; to disengage the detent 416 to permit removal of the shank 454 of the spit from the casing 480; and, by operation of the lever 538, to engage the clutch of the elevating mechanism so as to lower the casing 460 back into its depression in the casting 804 in the table.

The change gear mechanism shown in Fig. 23 serves also to operate the mechanism for shifting the lower fire box along the tracks 58. The object of oscillating this grate is to expose the material to be cooked uniformly to the heat in the fire box. It has been our experience that when material is being cooked over a charcoal grate the heat is apt to be quite uneven for the reason that fat and other material may drop into the grate and by flaring up may cause uneven burning of the charcoal. By shifting the fire box systematically back and forth the heat is evenly applied to the surface of the steak or other material being cooked. The shifting mechanism is controlled by means of the lever 642, which is adapted to control the clutch 620 as hereinbefore described. When the clutch is engaged by throwing the lever 642 to the right, the crank GM of the connecting rod 6I2 will push and pull the fire box 50 back and forth at a fairly uniform speed, which may be varied, by means of the change gear mechanism above referred to, to suit conditions.

The odors, of cooking are carried away through the conduit I52 by the draft produced by the fan 168. As indicated in the drawings, this fan has a separate drive motor I13 which, preferably, operates continuously during cooking. It is understood that a suitable switch (not shown) is provided for operating this motor. The fumes passing into the conduit I52 pass through the louvres I84 and before being passed into the conduitare drawn through the steel wool which is heldin place by the rods 166. Greaseand condensable material are caught in the steel wool, andfor this reason the-cover I is provided to p rmit per odi i ma l f he teel. W9 or dealin placement.

stra charc al b rns an ash, i rm dwill rop to t e t ate t an e e tuall a was container 18., The simplest way. toextinguish the fire is to pour water onto it, in which, case some water and ash also. are. removed, to the receiver- 18. On rare occasions the receiver 18 should be disconnected and. emptiedf-not, often because very little ash forms and the water evaporates.

It is understood that many modifications and changes of the above. described embodiment will occur to those skilled in theart that will be With-1 in the scope of the. invention which, however, is to be limited only to, the scope of the. appended l ms.-

Iclaim:

1.-. n a stove, a su rt, a fire ox moun d 01 said support and adapted to receive, charcoal fuel and the like, a second fire box, means for supnasaid c d fi e 2 2 nclu i g a. Pair arms detachably engaging said second fire box, a ui e lo e sk s arm a e a t to slide to advance and retract said fire. boxftc, and

r m sa fir o a asm un a afi e s d r fir b x a divstahlrre ha ab rt r call-y with respect thereto, to lift said second fire boxfrom said arms and to fix the height thereof with, respect to the first said fire box when the arm a ad n eds id sec nd. r x said ck mp s a ecta gula fr me h i qnt l osed and a n v rt cal l s a d elevating m s n a n said les 7 2, In a stove, a support, a fire box mounted on said support and adapted to receive charcoal fuel and thelike, a second; fire box, means for supporting said second, fire. box including a pair of arms detachably en a in sa sec n firc b x, a ide alo e wh h said a ms are a apted t slide to advance and retract said second fire box toward and from said first box, a rack mounted adjacent said first fire box and adj usl ably reciprocable vertically with respect thereto to lift said second fire box from said arms and to ad ust the height thereof with respect to, said firstfire box when the. arms have advanced the sfiQ nd fire box, and a second rack toqsu pport food and adjustable vertically between thefirst said fire box and the. first said rack.

3.1 In a stove, a support, a firebox mounted on said support and adapted to receive charcoal fuel and the like, a second fire box, means for supporting said second fire box, including a pair of arms detachably engaging said second fire box, a guide along which said arms are adapted to. slide to advance and retract said fire box toward and from said first box, a rack mounted adjacent said first fire box and adjustably ,reciprocable vertically with respect thereto to lift said second fire box and to fix the height thereof with respect to the first said firebox when the arms have advanced the second fire box, a second rack interposed between the first said fire box and the first rack, each said rack comprising a rectangular frame horizontally disposed and having vertical legs and actuating means engaging said legs.

4. In a stove, a support, a fire box mounted at the upper level of said support, a second fire box, and means on said support to carry said second box from a normal vertical position behind and below the level of said first box progressively vertically upward and forwardly. towards first said box and tiltingly to a horizontal position superposed against said first box.

5. In a stove, a support, a fire box mounted at the. p er level. of. sai sea ort. a sec n r x rom a n rm vert al siii n ind' d below the level first boxprogressively vertically pw rd. and. iqrwar lr t a ds s d. W and il irslv' to; a hpr rq al si i n superposed a a st midi 5 1 9 x id me n comprising a pair of arms engaging at one end said second fire b x, ac ua said arms, and track ass engaging said arms nt rsaiat j h nd 6, a stove, a support, a fir box mounted on aid, support afs p d. r x mqva rme on saisupport, mechanical means tofadjust the spacin f saidfire boxes with respect to each other whileir operative condition, and means to impart continuous horizontal motion to the first boxwit h respect to the second box.

' 7 In a stove, a support, a fire box mounted on said sup ort and adapted toreceive charcoal fuel, and the like, a second fire box, power actuated means for carrying said second fire box from a position behind and below the level of the first box to a position above and adjacent first box, and a cover vertically movable on said support to inclose, said bofes when the second box is in its rearward and lowered position.

8. In a stove, asilpport, a fire box mounted on said support and adapted to receive charcoal fuel and the like, a second fire box, carrying means r Said s nd fire 93 com sin r lffi ing arms pivotally supporting said second box at their ends, a track extending vertically for part its length and forwardly in the direction of the first fire box for an additional part of its length, for guiding said frame.

9;. In a stove, a support, a fire box mounted on said support and adapted to receive charcoal fuel n f han a Second 711's ox a ir f arm pivotally connected to said second box for $115? pensionthereof in an edgewise position, an actuating rnember pivotally connected. to said arms, a guide on which said arms are adapted to ride intermediate their ends, said guide being curved to cause the ends of said arms todescribe a relatively horizontal non-circular path towar and away from said first fire box and a motor to raise and we; said actuating member.

1Q. In a stove, a support, a fire box mounted on said support and adapted toreceive charcoal fuel and the like, a second fire box similar to the first, and means for transportingsaid second fire box from a horizontal position above said first fire box to a vertical position below and behind said first fire box including arms pivotally supporting said second fire box at its sides, a guide cooperative with said arms intermediate their ends, said guide having a straight portion and a curved portion extending from the straight portion forwardly and down, and a tilting memher on a d nd; b x ad mol sti g. ther f to engage one of said arms.

11. In a stove, a support, a fire box mounted on said support and adapted to receive charcoal fuel and the like, an ash receiving chamber below said fire box, torch members in said chamber, a second fire box similar to the first said box, means for supporting said second box above said torch members for igniting the fuel charge therein, including a pair of arms pivotally engaging said second fire box at both sides, a guide along which said arms are adapted to slide to advance or retract said fire box, having a straight portion and a curved portion extending forwardly and down to tip said arms to a position adjacent said first mea s en ag n th d of

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