US1189819A - Stove-damper. - Google Patents

Description

L. R. HOLLOWAY.

STOVE DAMPER.

APPLICATION men JUNE 21. I915.

1,1 89,81 9. Patented Jul 4, .1916.

z ZCT/ j UNITED STATES- PATENT OFFICE. I

LOUIS RICHARD HOLLOWAY, OF VICTORIA, TEXAS, ASSIGNOR 'I'O CABIRANGE MANU- FACTURING COMPANY, 0 15 BELLEVILLE, ILLINOIS, A. CORPORATION OF ILLINOIS.

STOVE-DAMPER.

Original application filed March 22, 1915, Serial No. 16,274. Divided and Specification of Letters Patent.

Patented Jui i, 1916. this application filed 31111621,

1915. Serial No. 35,431.

To all whom it may concern Be it known that I, LOUIS RICHARD Hon- LOWAY, a citizen of the United States, and resident of Victoria, Texas, have invented certain new and useful Improvements in Stove-Dampers, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

The objects of my invention. are, 1st, to combine a range or stove of ellicient design with a cabinet for culinary utensils in a compact and inexpensive manner, 2nd, to design a range and cabinet, in which the compartments are thoroughly and. evenly heated and in which the compartments aresubstantially thermally independent of each other, the uniformity in temperature being obtained by a particular flue arrangement and a motionlated balile plate, the thermal independence being produced by the presence of a two way damper properly positioned, 3rd, to design a self locking damper for directing the passage of heated air through a multiplicity of fines. V

This is a divisional application from my application filed March 22, 1915, Serial N 0. 16,274.

With the above and other objects in View, my invention has relation to certain novel features of construction and operation, examples of which are described in the following specification and illustrated in the accompanying drawings in which:

Figure 1 is a longitudinal cross-section through the center of the range and, Fig. 2 is a front elevation of my locking damper in an open position and, Fig. 3 is a front elevation of my locking damper in a closed position and, Fig. 4. is a perspective view of the locking plate used in connection with my locking damper.

In the drawings numeral 1 designates a horizontal base frame, supported at its cor- 11ers by the legs 2. Y

3 designates a rectangular compartment; at its left isthe ash pit 4: and immediately above the compartment 3 are the compartments 5, 6, and 7 Immediately at their left the compartments 8 and 9 are situated. Above compartment 5 is compart- 'ment'10 which is surrounded by the fines 11,

13, 11 and 15. To the'left of flue 11 is located flue 12.

16 designates a two-way stove damper, 17 a reticulated bafile plate and 18 the exhaust flue leading to a conventional smoke flue.

19 designates the stove plates and 20 the coal pouch.

21 designates a conventional shaker grate and 22 a fire back.

The shape and. positionings of the compartments as well as, the walls and joint structures for the walls are of the accepted type and design. Walls are made of a particular composition of iron and where insulated are made of alternate sheets of asbestos, and iron. The walls 23, 24, 25 and 30 and the backs'ofcompartments 6, 7 and 10 are insulated.

Coal is placed in the pouch 20 through the door 26 from which it feeds to the combustion chamber 9 resting on the rocker grate 21. The ashes are precipitated into the asl1- pit 4. The products of combustion arise from the combustion chamber 9, and following the arrows along the flue 15 arrive in the vicinity of the damper 16. From this point, by placing the damper 16 in a horizontal position so as to obstruct the passage into flue 12, the gases are compelled to take the circuitous path indicated by arrows through flues 15, 14 and 13 respectively, and thence out the stack 18, or the more direct path through flue 11, through the reticulated baffle plate, 17 into the flue 13 and all practically rise through the flue 11 and pass out stack 18 via flue 13. This would heat wall 28, and by conduction the air in the left'side of the oven 10, thereby producing a condition only too prevalent in the present type. of range.

By the proper proportioning of the sizes v fastened securely to a particular stove eleand distances between the openings in the baffle plate 17, a sufficient resistance can be introduced into the path of circulation through the flue 11 to cause the required amount of heated gas to take the circuitous path 15, 14 and 13 around the bake oven '10. By an empirical investigation, the design of this baflie can be made to produce an even balance in'the amount of gas that travels through flue 11, and through flues 15, 14, and 13.

.VVhen it is not desired to heat the oven 10, the damper is brought to a diagonal position and the gases pass directly from fine 15 through 12 and out of the stack 18. Wall 25 is insulated to prevent heating oven 10 by conduction through wall 25 and convexion through the air in flue 11. Wall 29 is not insulated, so as to dissipate the heat asrapidly as possible when not to be used. Compartments 6 and. 7 are in reality drawers or pansthat are slidably secured in the space shown as that occupied by compartments 6 and 7. p I

,6 is a conventional water reservoir with a faucet in its front face.

7 shows a pan inposition as held by the 'two ledges 31 and 32. The space occupied by 6 and 7 is heated by conduction through the metal of the fire back 22 andthrough the lower surface of the fiue 15 and thence by convexion through air currents in the compartment 8. Warming closet 5 receives its heat from the walls 30 and 33. Compartment 3 receives its heat through the walls 34 and 35. Although the construction shown in flue 11 with the reticulated baffle plate 17 is my preferred form, I do not wish to be limited to it.

My locking damper consists of a rectangular plate 36, two end plates 37 and 38 and a conventional handle. Plate 38 has anotched bearing 40 on which the shaft 41 is permitted to rotate, when the damper is in position.

42 is a rectangularprojection made integral with plate 38 and at a definite angle with the side 44 of the plate 38; the upper face of projection 42 being horizontal when in position, and flush with the lower edge of the bearing 40.

' 43 is a substantially triangular projection at a definite angle with projection 42 and also made integral with plate 38.

45 designates a nose extending slightly above the upper face of the plate 38.

46 represent holes by which the plate is ment.

At one extremity of plate 36 is formed the groove or dish 47 parallel to the edge of the plate 36. Plate 37 is rectangular in shape has no projections, and a notched bearing The distancebetween the right edge of plate 38 and plate 37 is suflicient to permit of a lateral motion equal in length to the width of projection 42.

The'operation of my damper is as followsz Consider the damperin the position shown in Fig. 3,'with the'left' edge of plate 36 resting on the upper surface of projection 42 and the left end of plate 36 immediately adjacent, the inner surface of plate 38. Upon rotating the damper in its journals 41 and 48, toward the position shown in Fig. 2, the left edge of plate 38 meets the slight lateral movement of the damper to" the left causes the notch 47 to engage the nose 45,. thereby locking the damper in this condition, as shown in Fig. 2. A slight movement upward and thence to'the right will disengage the damper and permit ofrotation to its normal position shown in Fig. 3. By this means, the damper is locked in one position by the nose and notch engagements, and in the other, shown in Fig.

2, by lying flatly on the projection 42. The weight of the damper produces this effect.

WVhat I claim is: i In a locking'damper, at plate, protruding shafts at the linear extremities and notches both of which. have journal notchesinto which said protruding shafts extend and in -which they rotate and means for securing parallel to ends near the ends, end plates,

said platesto stove elements, one ofsaid plateshaving a rectangularinward projection, the upper face of which is flush with the lower edge of one of said journalnotches, the other of said projections being triangula-r in shape with a nose formed integral therewith at its. upper end, and extending above the upper'surface of said plate, said end plates being so distancedapart as to permit of lateral motion equal to the width of said rectangular projection, said rectangular projection and said triangular pro- 'jecti'on' being disposed at definite angles with respect to each other.

In testimony whereof, I have signed my subscribing witnesses.

LOUIS. RICHARD HOLLOWAY; .lVitness'es: i f

,MI'LDRED' SToonnn, FREDERICK A. lVIAYIiALL.

Copies of this patent may be obtained for fivecentr each, by adglressin the Commissioner ol I'a ten't I wl lshingto n 'n. 0.

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name to this specification, in presence of two

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