US966724A - Cleavage-bar for furnaces. - Google Patents

Description

H. s. WELLS @L J. R. FORTUNE.

GLEAVAGE BAR FOR FURNAGBS..

APPLICATION FILED MAB. 18, 1909.

Patented Aug. 9, 1910.

INV EN TUR :Wa\\5 AOR/Veys THB NaRms'PlrlBs C0.. WAHINCTON, D. c.

STANT FFIC HAROLD S. WELLS AND JOHN R. FORTUNE, OF DETROIT, MICHIGAN, ASSIG'NORS TO MURPHY IRON WORKS, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

CLEAVAGE-BAR FOR FURNACES.

Speccation of Letters Patent.

Patented Aug. 9, 1910.

Application filed MarchV 18, 1909. Serial No. 484,255.

To all whom 'it may concern:

Be it known that we, HAROLD S. VELLS, a subject of King Edward VII of Great Britain, and JOHN R. FORTUNE, a citizen of the United States of America, both residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Cleavage-Bars for Furnaces, of which the following is a specification, reference being had therein to the accompanying drawings.

In smoke consuming furnaces and especially in such furnaces where the fuel vis automatically fed to the grates, it has'been found that the extreme temperature within the furnace melts the clinkers or other residue from the fuel and causes the same to adhere to the furnace walls. This accumu lation in time clogs the grates, retarding combustion and the movement of fuel down the grates, preventing the most efficientoperation of the furnace.

The object of this invention is to provide simple and efficient means for removing this accumulation from the walls of the furnace adjacent to the grate bars and consists essentially in providing a bar or member to lie close to the wall and means whereby this member may be moved by the operator from the exterior of the furnace at any time, to cleave or break away the accumu lation from the face of the wall adjacent to said bars. v

The invention further consists in certain other new and useful features and inthe particular construction, arrangement and combination of parts all as hereinaftervmore fully described, reference being had to'the drawing, in which Figure 1 is a sectional perspective detail of a portion of a furnace showing a cleavage bar embodying this invention in place therein. Fig. 2 is an enlarged detail show# ing a section through the front wall of the furnace on the line of Fig. 3. Fig. 3 is a side elevation of theV cleavage bar and Showing its supports and other adjacent parts of the furnace. Fig. 4 is a similar view showingV a 'modified construction.

We have shown the invention as applied to a smoke consuming furnace .embodying an automatic Stoker in which 1 vrepresents the vertical front wall of the furnace, 2 one 'of the side feed magazines for the fuel from the arch plate 3 of which, springs the double Vwhich the rock shaft 11 for operating the movable grate bars extends. At its upper end the cleavage bar is supported by an arm l12 lying within an opening 13 in the bar and secured upon the inner end of a shaft 14 extending through the wall 1. The cleavage bar also rests when in its normal or lowered position against a bar'15 extending alongthe edge of the coking plate and against which the ends of the grate bars rest.

The opening 13 is preferably made triangular in shape with a laterally extending slot 16 into which the free end of the arm 12 extends so that when the shaft 14 is turned by any suitable crank applied to its outer end the cleavage bar will be raised,

the freeend of the arm sliding and turning within the slot 16 and the V-shaped opening permitting the bar to risenpon the shaft 14.

Preferably, a bearing for the shaft 14 is provided in the wall of the arch by a fixed sleeve 17 through which the shaft` extends and in which it turns freely. Secured to the projecting outer end ofthe sleeve is a casting 18 which in turn is secured to the furnace front and the extreme outer end of the shaft 14 is reduced, and upon this reduced end is secured a squared head 19 which is flanged at its base to seat upon the casting 18. The y shaft 14 is thus held from inward longitudinal movement by the head 19 and from a similar outward movement by the engage` ment of the arm 12 with the inner surface of the wall. The cleavage bar is held close against the face of the wall by forming said bar with a flange 2O at its inner side engaged by the end of the arm 12, said flange extending across the slot 16 and adjacent portion of the opening 13.

The cleavage bar normally lies with its upper edge in the plane of the upper edges of the grate bars which lie close to it, said grate bars adjacent to the cleavage bar in Fig. 1 of the drawings being shown removed to'show the cleavage bar. Said cleavage bar may be supported at its lower end in any desired manner,'but we prefer Lto support it upon the rock shaft 11 as shown, the openv .ing therein through which the rock shaft and necessary, clear the face of the wall adjacent to the grate bars of the accumulated clinkers adhering thereto, by attaching a crank to the "outer end of the shaft 14: and turning the same, which will raise the cleavage bar and "shear or break away the clinkers from the facpfthe wall.

In the modified construction shown in Fig. 4f, a headed bolt 22 on the free end of the arm 12 extends through a slot 23 in the l cleavage bar to attach the arm to said bar,

and at its lower end the cleavage bar is provided'with a bearing'24 to engage and rest upon the rib 21 of the rock shaft 11 so that when the rock shaft is turned the cleavage bar will be raisedv and lowered at its lower end in unison with the movable grate bars. A strap 25 is secured to the lower end of the cleavage bar and extends around the rock shaft to prevent the bar from being disengaged from the rib of the shaft.

It will be understood that while in the vdrawings we have shown but one side of a furnace, that a like cleavage bar will be provided at both sides of the furnace adjacent to veach set of inclined grate bars, and while we have illustrated the invention as applied to a particular construction of automatic smoke consuming furnace, we do not wish to limit ourselves to any particular construction of furnace or kind of grate bars in connection with which this invention may be used.

.What we claim as our invention is 1. In a smoke consuming furnace, the combination of grate bars, and means for actuating the same, a wal la bar having a portion extending along the face of the wall to engage and cleave from said wall the accumulation of residue from the fuel burned, and means for actuating said bar independent-ly of said grate bars.

2. In a smoke consuming furnace,the combination of grate bars, a wall, a bar supported adjacent to the face of said wall in the plane of said grate bars between said bars and wall, and means operated inde- Eendently of said grate bars to actuate said 3. In a smoke consuming furnace, the combination of movable grate bars,'a wall, abar having a continuous upper edge extending along close to the'face of said-wall between said wall and said grate bars, and means for moving said bar independently of the grate bars.

4. In a smoke consuming furnace, the combination of arfront wall, movable grate bars, means for actuating said bars, a cleavage bar, means for supporting said bar in the plane of the grate bars and adjacent to the face of the wall, and a member extending through the wall engaging the cleavage bar to move the same independently of the grate bars.

5. In a smoke consuming furnace, the combination of grate bars, means for actuating said bars, a wall, a cleavage bar supported adjacent to and extending along the face of said wall between the wall and the grate bars, means for supporting the lower end of said cleavage bar, a shaft extending through the wall, means on the inner end of said shaft to engage and support the cleavage bar independently of the grate bars near its upper end and to actuate said bar independently of the grate bars, when the Vshaft is turned.

6. In a smoke consuming furnace,the combination of grate bars, means for actuating said bars, a wall, a cleavage bar pivotally supported at one end in the plane of the grate bars adjacent to the face of the wall,

a shaft extending through the wall near the opposite endof said cleavage bar, an arm on the inner end of the shaft engaging said bar to actuate the same independently of the movement of the grate bars when the shaft is turned. Y

7. rlhe combination with a wall, movable grate bars and a rock' shaft for actuating said bars, of a cleavage bar supported at one end upon said rock shaft adjacent to the face of said wall and adapted to be moved by said shaft when the shaft is turned, means adjacent to the opposite end of said cleavage bar to raise and lower said end independently of the movement of the grate bars.

8. The combination with the wall and inclined grate bars of a furnace, of a cleavage bar supported adjacent to the inner face of the wall between said wall and said grate bars and formed with an opening near its end, a shaft extending through said wall and adapted to be turned to actuate the cleavage bar independently of the grate bars, an arm on the inner end of the shaft within the opening in the cleavage bar, said arm lying wholly within the plane of said bar, and means for preventing the longitudinal movement of the shaft through the wall.

9. The combination with the wall and inclined grate bars of a furnace, of a cleavage bar supported in the plane of the grate bars adjacent to said Wall and formed near its upper end with an opening, a sleeve extending through the wall, a shaft within said `sleeve adapted to be turned to aotuate the cleavage bar independently of the grate bars, an arm on the inner end of the shaft engaging the opening in the cleavage bar, and a head secured to the outer end of the shaft to prevent the longitudinal movement thereof through the wall.

10. The combination with a furnace wall, a series of inclined grate bars, means for supporting the upper ends of said bars, and a rook shaft adjacent to the lower ends of said bars to aetuate the same, of a cleavage bar having a continuous upper edge and pivotally supported at its lower end by the rock shaft'and extending upward in the plane of the grate bars with said edge adjacent to the.

inner face of said wall and normally supported at its upper end by the support of said grate bars, and means extending through said wall adjacent to the upper end of said cleavage bar to engage and aetuate said bar independently of the movement of the rock shaft.

In testimony whereof we aiX our signatures in presence of two witnesses.

HAROLD S. WELLS. JOHN R. FORTUNE. Witnesses:

R. AUSTIN JAMES7 J. M. WILSEY.

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