US728953A - Coke-oven. - Google Patents

Description

No. 728,953. PATENTED MAY 26, 1903.

G. M. MILLER.

COKE OVEN.

APPLICATION FILED AUG 7. 1902.

NO MODEL.

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UNITE STATES Patented May 26, 1903.

PATENT OFFICE.

COKE-OVEN.

SPECIFICATION forming part of Letters Patent N 0. 728,953, dated May 26, 1903.

Application filed August '7, 1902. Serial No. 118,794. (No modeLl 1'0 aZZ whom, it may concern:

Be it known that I, GEORGE M. MILLER, of Uniontown, in the county of Fayette, State of Pennsylvania, have invented certain new and useful Improvements inCoke-Ovens, of which the following is a complete specification, reference being had to the accompanying drawings.

The object of my invention is to produce improvements in coke-ovens whereby the drawing of the coke after firing is facilitated, being effected merely by the withdrawal of a slide-bottom in the oven proper, whereby the coke in the act of discharging from the oven is delivered at the place desired-as, for example, into a c arand whereby provision is made for the retention of sufficient residual heat in the oven for restarting the fire after each coke -withdrawing operation is completed.

In the accompanying drawings, Figure I is a front elevation of a portion of a coke-oven embodying my invention, the front door being shown asopen and the floor-slide removed. Fig. II is a section on the line II II of Fig. I. Fig. III is asection on thelineIIIIII of Fig. II.

Referringto the numerals on the drawings, 1 indicates the side walls or body part of a coke-oven, which is preferably constructed'in conformity with the well-known beehive type of oven. -Ata suitable height within the walls of the oven I provide a slanting floor 2. The floor 2 is preferably made of the same material of which the body part 1 is constructed and is inclined throughout its extent toward an oblong vertical opening or recess 3 in the lower portion of the body part. In the upper part of the recess 3 I provide a slide-plate 4 or movable floor-section, which is preferably supported upon a rectangular horizontal frame 5, preferably made integral with the side pieces 6 and 7 of a chute-frame, of.

which 8 indicates the inclined floor. The side pieces 6 and 7 preferably extend flush with the slanting bottom 2 along its-lower ends, and the vertical frame upon which the sliding bottom 4 slides preferably consists of flanges projecting oppositely from the side pieces 6 and 7 and a cross-piece 9, which spans the doorway, whose frame is indicated by the reference-numeral10. When the sliding bottom 4 is in place in the oven, as shown bottom or hearth within the oven.

in Fig. II, it forms in combination with the slanting portion 2 of the bottom a continuous The inclined floor 8 of the chute runs from the extreme rear Wall of the oven outwardly through an opening 11 in the front wall of the oven. Near the lower end it is provided with a screen or grid 12. The lower end of the floor 8 and of the side pieces 6 and 7 may extend any desired distance beyond the wall of the oven in order that it may be thereby enabled to make discharge at any point desired, the form and extent shown of those members of my device being illustrated merely for the purposes of explanation.

The grid maybe of any desired extent and of any size of mesh. It is located in practice above a screening-box 14. The bottom 15 of the box is not only underneath the floor 8 of the chute, but does not extend inwardly so far as that floor and is adapted to separate the screenings from the coke.

The sliding bottom 4, the form of which accommodates it to its function, the side pieces 6 and 7, and the screening-box are all preferably made of metal, and all but the sliding bottom 4 are preferably made in a. single piece.

During the coking process the operation of my oven is subst'antially like that of other coke-ovens, the floor 4 being of course in the closed position shown in Fig. II and the opening into the door-frame 10 being properly closed. After firing in order to withdraw the contents of the oven all that is necessary is to pull out the sliding bottom 4, when the entire contents of the oven are precipitated over the slanting floor 2 directly into the chute, whence they slip easily over the floor 8 and. the grid 12, being discharged from the end of the chute, as into a car. In passing over the screen 12 the coke is properly screened and is discharged cleaned and ready for use from the end of the chute. By reason of the presence of the inclined 'floor 2 abundant heat is retained in the oven notwithstanding the presence therein of the sliding bottom 4 for restarting the oven after each drawing of the coke. After the withdrawal of the sliding bottom 4 and the discharge of the coke to be drawn upon the fioor 8 the coke is sifted over the screen 12, the

matter sifted out or screenings being separated from the coke and the coke and screenings discharged separately.

What I claim is- 1. In a coke-oven, the combination with an inclined floor therein and an inclined chute communicating directly therewith, of a movable floor-section above the chute, substantially as set forth.

2. In a coke-oven, the combination with an inclined floor therein, and a chute provided with a screen-bottom, of a sliding floor-section above the chute, substantially as and for thepurpose specified.

3. The combination with a coke-oven and its floor, of a chute communicating with the interior of the oven, said chute projecting through the wall of the oven, a screen in the chute-floor beyond the Wall of the oven, and a movable floor-section above the chute, substantially as specified.

4:. The combination with a coke-oven and an inclined floor therein, of a chute provided with a screen-bottom, said chute extending through the Wall of the oven, and a movable floor-section above the chute.

underneath the sliding bottom and projecting outwardly through the wall of the oven.

7. The combination with a coke-oven, sliding floor-section and an inclined chute, of a screen located in the bottom of the chute near its lower end, and a screening-box provided with an inclined floor located underneath the screen, and means for discharging the screenings separately from the coke.

In testimony of all which I have hereunto subscribed my name.

GEORGE M. MILLER.

Witnesses:

-D. WILLIAMS,

A. C. HERBERT.

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