US493594A - Charles herbert melvin - Google Patents

Description

(No Model.)

2 Sheets-Sheet 2.

C. H. MELVIN.. STOVE.

No. 493,594. Patelanted Mar. 14, 1893.

YN: mams Evans co., Horn-mmc.. wlsnmoon. D. c. I

UNTTEE STATES PATENT Errea.

CHARLES HERBERT MELVIN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY

MESNE ASSIGNMENTS, OF TWO-THIRDS TO I-IIMSELF AND GEORGE E. GEE, OF SAME PLACE.

STOVE.

SPECIFICATION forming part of Letters Patent No. 493,594, dated March 14, 1893. Application led January 2, 1892. Serial No. 4] 6,808. (No model.)

To all whom it may concern: formed of rectangular flat pieces of sheet Beit known thatI, CHARLES HERBERT MEL- steel having their edges bent or folded back VIN,a citizen ofthe United States, residing at to form langes for the interlocking joints. Minneapolis, in the county of Hennepin and Of these, the bottom plate has its four edges 5 State of Minnesota, have invented certain new turned downward forming the down [langes 55 and useful Improvements in Stoves; and I do B. The front, rear and side plates have their hereby declare the followingr to be a full, clear, lower edges turned upon themselves inward and exact description of the invention, such and upward forming flanges H, for engageas Will enable othersskilledin theartto Which ment With the said down flanges B of the IO it appertains to make and use the same. bottom plate and are held in position, when 6o My invention relates to stoves; and more set up, by the angle bars H', removably separticularly to a stove having dampers of cured by bolts and nuts h to each of the said novel construction and arrangement, as will side and end plates directly over the said hereinafter more fully appear. flanges. Each of the vertical edges of the I5 The stove illustrated in connection with my side and end plates are folded or turned out- 65 invention is constructed of sheet metal With ward and then backward upon themselves the exception of the top plate of the stove, forming flanges K, for engagement with the all the plates being of flat form and detachremovable corner pieces G. These corner ably united by means of flanges on the joinpieces or caps G, are of angular form in ing edges of the plates. Certain of the joincross section and have their vertical edges 7o ing flanges may interlock directly with each turned inward forming flanges g,of hook-like other and others be connected by removable form for engagement with the out-turned hook-like corner pieces which slide endwise Iianges K of the side plates, the engagement over the joining flanges. being eected by an endwise movement of The invention is illustrated in the accomthe caps. i 75 panying drawings, wherein like letters refer The four oven platesLhaVe corresponding to like parts throughout the several views. anges Z on their joining edges, with which Figure l is a View in perspective, showing engage corner or cap pieces L having hookthe stove set up and supported on a suitable like flanges Z', in a manner exactly the same 3o base. Fig. 2 is a vertical section on the line as the vertical corners and cap pieces of the 8o X X of Figs. l and 3. Fig. 3 is a plan View stove body. This oven is secured between of the stove, some parts being broken away. the front and rear plates of the stove body, Fig. 4 is a horizontal section on the line Y Y by being placed in position with one end teleof Fig. l. Fig. 5 is a detail of the draft scoping overthe joint flange Dsecured tothe dampers, removed from the stove. back plate and the other over the inwardly 85 A, B, O, D, E, F and G are the knockdown projecting joint ilange C on the oven door parts of the stove body, of which A is the top, frame C2, which is secured by rivets to the B is the bottom, O the front plate, D the rear front plate of the stove body. or back plate, E the right and F the left end To more rmly secure the oven in position 40 plate, and G are the four corner pieces for seand give an additional rigidity to the stove 9c curing the side and end plates together at body,apairofrodsMarepassed longitudinally their vertical corners. through the said oven near each side, having The top plate A is a light casting provided their heads engaging lugs C3 projecting from with the ordinary griddle holes a, and pipe the door frame C2 and their other ends, exthimble d', and having in addition thereto, a tending through perforations in the back 95 depending flange a2, adapted to telescope with plate and provided with nuts l for clampthe vertical part of the stove body, when the ing the said parts together. These bolts are stove is set up. so positioned that they serve as rests for the The bottom of the stove and the sides and oven rack L2. ends, as well as the four sides of the oven are N is the bottom grate, N the side grate, N2 roo the tire back and N3 the draft register of the iirebox,'all of the customary construction.

P P are angle pieces for supporting the fire box secured respectively one to the adjacent plate of thestove body and the other to the adjacent plate of the oven.

Vertical draw-rods R pass through perforations in the top and bottom plates inside the corners and are provided with nuts at their lower ends for clamping the parts together. One pair of these bolts may also be employed to secure the vertical grate of the tire-box in position.

The removable vertical and horizontaldrawrods R and M co-operate t0 stay the parts of the stove and hold the same together with the necessary rigidity.

S and T ari-J swinging dampers hinged to the rear plate D at their opposite ends by hinges S and T', for opening and closing respectively, the passages S2 and T2, leading from the main body of the stove, respectively above and below the oven, into the back flue U. These dampers are preferably so connected that when either is in its closed position, the other will be in its open position and thrown out into the stove at an angle to the normal line of draft.

As a convenient means of connecting the dampers, I employ the rod W, extending vertically through the draft flue U and pivotally secured in the back plate D, carrying a pair of crank-arms S3 and T3, which project in a reverse direction, respectively opposite to and connected by links S4 and T4 with the dampers S and T. To the upper end of this rod, which extends through a perforation in the top plate of the stove, is secured a hand lever W for setting the said dampers in their different pcsitions. It should be noticed that when these dampers are set in either of their positions, their operating cranks and connectin g links stand approximately on a dead center, and hence will hold the dampers against the force of the draft, in whichever position they may be set.

The operation of the dampers is as follows-Then desired to cook from the top of the stove, the lower draft passage T2 is closed by the damper T, hence, the other damper S will be moved into its opened position, as shown in Fig. 3. In this position, the damper S acts as a deflector, preventing the draft from taking a short cut across one side of the oven in passing from the fire-box to the flue passage S2 and causing the same to spread out ldalnpers and defiectors.

over the top of the oven and make the complete circuit of the griddle holes; On the other hand, when it is desired to use the oven, as for baking purposes, the upper draft passage S2 is closed by the damper S, the closing of which will, as before stated, throw the lower damper T into its open position as shown in Fig. 4. The draft will then pass from the tire-box over the top, down the side, under the bottom of the oven and through the passage T2 into the back flue of the stove. The open damper T, then acting as a detlector will cause the fiame to spread out under the entire bottom of the oven. These dampers, therefore perform the double function of It should be noticed that the said dampers, in order to give the same suiiicient length for their function as deflectors, are made longer than would be necessary to close the draftpassages.

What I claim, and desire to secure by Letters Patent of the United States,is as follows:

l. In a cooking stove having an interior oven, a pair of combined dampers and deliectors located one above and the other below the oven, controlling respectively the direct and indirect passages to the outlet iiue, and arranged each to be thrown outward against the line of draft to act as a detiector when open, substantially as and for the purpose set forth.

2. In a stove provided with an oven, a pair of combined draft dampers and detiectors located one above andthe otherunder the oven, and controlling the passages to the outlet fiue, the said dampers being mounted to move in opposite directions so that when one is open the other is closed and arranged to deflect and spread out the products of combustion so that the direct draft must take the complete circuit of the griddle holes and the indirect the complete circuit of the oven.

3. The combination with the stove having an interior oven and direct and indirect passages to the outlet flue of the combined dampers and deliectorsS and T, the operating rod Wprovided with the reversely related cranks S3 and T3 and the links S4 and T4 connecting the same with the said dam pers, substantially as and for the purpose set forth.

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

CHARLES HERBERT MELVIN.

Witnesses:

WM. D. HULL, JAS. F. WILLIAMSON.

ICO

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