US2104994A

US2104994A - hughes

Info

Publication number: US2104994A
Authority: US
Publication date: 1938-01-11
Anticipated expiration: 1955-01-11

Description

Jan. 11, 1938. F, E, HUGHES 2,104,994

STOVE Filed Oct. 14, 1935 Patented Jan. 11, 1938 STOVE Frederick E. Hughes, Port Loring, Ontario, Canada Application October 14, 1935, Serial No. 44,842

3 Claims.

The principal object of this invention'is to provide an improved fire door structure for stoves which will greatly facilitate the replenishing of the fire and will eliminate to a great extent the 5 danger incident to the release of fiying sparks or coals when refueling.

A further object is to obviate the danger of flaring gases and the discharge of smoke and fumes into the room on the opening of the fire 0 door.

The principal features of the invention reside in the novel construction and arrangement of the stove structure whereby the refueling door, which is of substantially trough shape, extends '15 the full width of the fire box from side-to-side of the stove to receive a length of cord wood or other fuel in its open position. and to automatically deposit the same within the combustion chamber or fire box on the closing of the door and this door is connected with means for opening the flue to create a direct draft when the door is opened.

The invention further resides in the novel formation and manner of mounting the door in conjunction with the adjacent lower portion of the stove front whereby a smooth unobstructed path is provided for the passage of the fuel from the door into the combustion chamber.

Figure 1 is a fragmentary mid-sectional side elevational View of a stove constructed in accordance with the present invention.

Figure 2 is a side elevational View of the construction shown in Figure 1.

Figure 3 is a front elevational view of the upper fire door portion of the stove showing the door closed in one half of the drawing and open in the other half.

Figure 4 is a fragmentary sectional plan on the line 4 i of Figure 1 indicating in chain lines the open position of the door.

Figure 5 is a fragmentary perspective view of a modified form of the invention in which the fire door is operatively connected with the fiue damper. Figure 6 is an enlarged elevational view of the damper control device.

In the form of the construction shown the sides I and 2 of the stove, which may be of sheet metal, are stepped forwardly at the point 3 in- 0 termediate of the height and the forward upper portion is rounded outwardly in a convex formation 4.

A casting 5 of stepped formation is fitted between the stepped portions of the side panels I 5 and 2 and is provided with a thickened portion 5 below the fire door opening 7, the inner surface of the portion 6 being sloped downwardly and inwardly to meet the side 5 of the fire box and forming with the surface of the portion 6, a chute which slopes continuously downward form- 5 ing an unobstructed passage from the door to the interior of the firebox so that when the door with its charge of fuel is closed there will be no possibility of the fuel becoming lodged and complete discharge thereof into the firebox will be 10 ensured.

A fire door 8 is fitted between the upper edge of the portion 6 and the top 5 of the stove and is of substantially trough-shaped formation presenting a concaved inner side i6 which forms 15 a continuation of the sloping inward surface of the portion of the front casting 5. The door H) is stepped upwardly along the bottom edge at l i on the outward side forming a downwardly extending part-cylindrical flange on the inward side, the rounded contour of which rests in the grooved upper portion of the section 5 to form a closure from side-to-side of the door opening, while at the same. time permitting the free swinging movement of the door. 25

The rounded flange portion of the door is extended outwardly at either end beyond the side panels I and 2 of the stove and preferably journalled in upstanding lug portions l2 of the casting 5 and the end extremities are provided with 30 bell cranks l3 which are engaged by springs l4 suitably anchored at l5 to the side panels so that the springs co-operate with the cranks to hold the door in either open or closed positions.

End flanges l4 are carried on the concaved side of the door and these fit snugly adjacent the inner surfaces of the side panels I and 2 to form a substantial closure thereagainst, and they also serve to hold the fuel that is placed within the trough formation of the door when the latter 4:0 is in open position as indicated in chain lines Figure 1. They are also formed with stop lugs X sliding in the arc-shaped grooves X which hold the door in a horizontal position when open.

When the door is swung outwardly and down- 45 wardly to the open position as indicated in Figure 1, a length of cord wood or other fuel may be placed on the door, the opening movement of the door being limited by reason of the engagement of the stop X with the upper and outer end of the groove X. The door presents a smooth inner surface continuous with the inner surface of the section 6 of the casting, so that when it is tilted upwardly the fuel will slide or rollinwardly without meeting any obstruction and it continue down over the inward and downward sloping surface of the portion 6 to, be deposited completely within the fire box. Any sparks that will be thrown upwardly will be prevented from' escaping by reason of the simultaneous closing of the door, and since the door extends completely across the full width of the fire box, an even distribution of the fuel from end toend of the fire box will be achieved and it is important to note that cordwood of full firebox length may be supplied to' the firebox in this way, whereas in present stove constructions when refueling through the front, it is necessary to cut the cordwood in lengths considerably shorter than the .vfirebox or else insert the longer length of wood through an end door or through the top of the stove, which practice is objectionable and dangerous due to the release of smoke, gases and sparks each time the fuel is replenished.

In the form of the invention shown in Figure 5 a crank member I6 is secured to an axial extension I6 of the doorB' adjacent to the back of the stove and is connected by a rod I! to a rocker member 18 mounted on a pivot pin l9 arranged at a suitable place on the backof the stove and this rocker member is arranged to engage a pin' 20 on a lever 21 also pivoted on the pin Hi. The lever 2! is connected by a rod 22 to thecranked end of a damper 23 in the smoke flue. When the door 8 is opened the rocker member is operated to open the damper so that gases within the stove will be immediately liberated through the flue preventing the flashing or puffing of smoke into the room where the stove is located.

The lever 2| is provided with an arm 2 by means of which the damper may be operated from the side of the stove independent of the door 8, the lever 2| moving independently of the rocker member It.

A door 25 is mounted in the opening of the ash pit 26 beneath the grate and extends the full width between the side Walls 2, the rounded bottom edge 21 of said door being rotatably supported in a groove 28 in the frame. This door is provided with side wings 29 which fit snugly against the sides 2 of the stove and form'dusttight joints. 7

What I claim as my invention is:--

1..In a stove of the front refueling type in which a refueling door is hingedyto swing upwardly to discharge a quantity of fuel through the door opening into the interior of the stove,

in combination therewith means forming a chute sloping continuously downward from the hinge side of the door directly into the firebox forming a non-obstructed passage'from the door to the combustion zone of the firebox whereby lodgement of the fuel between the door and firebox is prevented, said chute-forming means including a. front portion presenting an inner surface which forms a smooth unbroken surface continuation of the inner surface of the door when the latter is in its closed position.

2. Means as claimed in claim 1 in which the inner surface of said front portion slopes steeply upward to a horizontal hinge recess in which the hinge side of the door is rotatably sealed, the

rotatably sealed hinge portion of the door being and a chute portionsloping directly and unobstructedly into said firebox, a horizontally hinged refueling fire door also extending the full length ofsaid firebox, and means for maintaining a flush seal between the hinged side of said door and the inner top extremity of said chute from end to end thereof substantially unaffected by the opening and closing of the door to permit charging of fuel completely and unobstructedly from. the door intothe firebox and prevent dust of sparks from passing between the hinge side of the door and the chute.

FREDERICK E. HUGHES.