US1744165A - Furnace wall - Google Patents

Description

D. s. JACOBUS FURNACE WALL Jan. 21, 1930.

Filed May. 5 1925 f2 Sheets-Sheet INVENTOR.

S Z I BY ,6 I k M ATTORNEYS.

I wlllllllll Jan. 21, 1930. 1 5, JACQBUS 1,744,165

FURNACE WALL Filed May 1923 2 Sheets-g 2 Fa g r 1 E I, I, :5

Til? i IN V EN TOR.

' f- M A TTORNEYS.

Patented Jan. 21, 1930 UNITED STATES PATENT OFFICE DAVID S. JACOBUS, OF JERSEY CITY, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO FULLER LEI-IIGH COMPANY, A CORPORATION OF DELAWARE FURNACE WALL Application filed May 5, 1923. Serial No. 636,921.

My present invention relates to improved constructions of vertical walls, particularly such as are used to surround the combustion chan'ibers of furnaces.

My invention will best be understood from the following description and the annexed drawings, in which Fig. 1 is a vertical sec tion of a well-known type of boiler showing furnace walls embodying my invention; Figs. 2 and 3 are respectively enlarged horizontal and vertical sections of the front walls shown in Fig. 1, Fig. 2 being a section on the line 22 of Fig. El; Fig. 4 is a front view of Fig. 3; Figs. 5, (3 and 7 are views similar to Figs.

3 and 4, showing a modification, Fig. 5 being a section on the line 5-5 of Fig. (5; Figs. 8, 9 and 10 are respectively horizontal, and vertical sections and rear .view of another modification, Fig. 8 being a section on the line 88 of Fig. 9; Figs. 11, 12 and 13 are respectively plan, side and end elevations of a detail.

Like reference characters indicate like parts in the several views.

Referring to the construction shown 1n Fig. 1. the boiler is surrounded by setting walls, the front wall being formed in two pa rts. with an upper part 10 and a lower part '11 having a slip joint between them. the portion 11 being supported, partly at least, on the. stoker. The wall It) is considerably rcmovcd from the front steam and water drum and there is a roof extending from the vertical wall to this d rum. I

Because ot' the heat conditions to which walls such as the front wall 10, are subjected in furnaces. it is desirable to provide means by which they will be held in a vertical position while, at the same time, the wall will be free to expand and move in any direction parallel to its face. By my present arrangement, I provide a construction by which this end will be accomplished by the use of courses of tile, the tile in which are of the same thickness as the courses of brick or tile in the remainder of the wall, so that the wall may be laid up with these special courses of tile precisely the same as an ordinary wall is laid up. Furthermore, by using tile of the same size as the ordinary brick or tile, a much better heat-resisting tile can usually be manufactured than would be the case if the tile were larger than the ordinary brick.

In Fig. 1, as illustrated on a larger scale in Figs. 2, 3 and 4;, is shown a wall made up entirely of fire-brick, the ordinary fire-brick in courses being shown at the parts marked 17, it being understood that this portion oi. the wall is laid up in stretcher courses and headercourses in the usual way. At one or more points in the wall (in the wall illustrated, at one point only, midway of its height), I substitute for a fire-brick course. a course in which there are special tiles 18 laid as headers. In the form shown in Figs. 2, 3 and 4, these special tiles extend only part 'way across the wall, the remainder of the wall being made up of ordinary fire-brick 17 Each of the tiles 18 is provided with a recess on only one of its sides and the tiles are so laid that two of the recesses come side by side so as to form a cylindrical recess having a relatively narrow neck extending to the outside of the tile. this recess extending from the top to the bottom of the tile. In this recess is a holding member shown on an enlarged scale in Figs. l1. l2 and 13. and having a cylindrical head 19. a shank 20 and an integral holding piece 21, the holding piece extending at right-angles to the axis ot'the cylindrical head 19. The holding piece may be made of any suitable material, such as cast-iron. The shank 20 extends through the narrow portion of the recess between a pair of tiles and the holding piece 21 is therefore well outside of the wall. By placing the recess on one side only of each tile. and laying the tile in the wall as shown in Figs. 2, 5 and S, a single holding piece is used for two of the tile. which enables a relatively small tile to be used as compared with the size that would be necessary it recesses were placed on both sides of each tile. It is preferable to use a relatively small tile as when this is done, a more unir form and better grade of tile can be secured. Should slots be used on both sides of the smaller tile, it would make it necessary to employ twice as many holding pieces as with the slots on a single side. thereby adding to the expense without bettering the arrangement.

In the arrangement illustrated in Fig. 1, a buckstay 22 extends across the front of the wall. being held at either end by the metal work of the boiler setting, this buckstay. in the form illustrated, being trough-slmped in cross-section and having plates 23 fastened to the flanges of the buckstay and extending inward across the trough of the buckstay 22, but having their inner edges spaced apart to form a long slot. The shank 20 projects through a holding plate. 21 which is provided with a vertical slot only slightly wider than the shank 2t) and not as wide as the holding piece 21. The plates 21 are higher than the vertical width of the slot between the plates 2;). The plates are turned at right-angles to their positions shown in Fig. I so as to slip over the holding piece 21 and are then turned to the position shown in Fig. 1.

ith this arrangement. it will be obvious that the enlarged head 19 serves as an anchor for a pair of the tiles 18 and that the plates 24 and the holding piece 21 will anchor the tiles so that they will be held against motion to the lettot Fig. (3,, while. at the same time. by reason of the vertical slots in the plates 2-l and the horizontal slot between the plates 23, the files 18 may move in any direction parallel to the face of the wall 10. Therefore. since the tiles 18. are bonded into the wall. the wall will be free to move in any desired direction in a vertical plane, but will be held against 'l'alling inward.

The arrangement shown in Figs. 5. 6 and 7 is similar to that just described. exceptthat, instead of a buckstay shaped as at 22, there is a pair of I-beams 25 extending across the front of the furnace wall. theinner one of which has fastened to its web, plates 26, 26 with their inner edges spaced apart to form a horizontal slot, these plates being engaged by the plates 21 in a manner similar to the engagement between suchplates and the plates 23. 23 of Fig. 3. The wall shown in Figs. 5 and 6 is not so wide as that shown in Fig. 3). and in such a wall I prefer to keep the tile 18 of the same length as shown in Fig. 3 which brings the end thereof projecting from the face of the wall.

In the arrangement shown in Figs. 8, 9 and 10. the buckstay is similar to that shown in Fig. 3. but the wall is shown as made up of fire-bricks 17 and common bricks 27 bonded together in the usual manner. In this wall, the fire-bricks completing the course having the special tiles 18 are laid as stretchers.

In all of the forms shown. it will be understood that the special tiles 18 are of the same height as the remainder of the brick or tile' used in forming the wall. so that the wall when Viewed from the inside would have the appearance of a wall without the special holding tile. In other words, the wall is constructed in the usual manner with the ex- ,ception that at certain courses. tile are inserted which have recesses for engaging the holding members.

In erecting the wall. it will be understood that the buckstay 22 or its equivalent is located at a definite height by its connection to the metalwork of the setting. In laying up the wall. there is no certainty as to where the top of a course of brick may come in relation to this fixed member. By making the vertical slot in the plates 21 somewhat longer than the thickness of a brick, all possible variations in this relation will be compensated tor. Obviously the maximum yariation will be the thickness of a brick. as is indicated in dotted lines in Fig. 2). in which the holding member is shown in lull lines in its calculated position and in dotted lines above and below the full line position in the extreme positions. in which the holding member may come in laying up the wall. If the dillercnce from the calculated position exceeds this, then the course of tile 18 would be located one course higher or lower, as the case may be. The slot in the plate 2-1 will therefore be made the thickness of a brick plus the height of the shank 20 plus whatever additional clearance is desired to permit the wall to expand upward. \Vith such a construction. no care need be used in laying up the wall to bring the course of tile to the proper position in relation to the fixed member. The courses are laid up until the buckstay is reached and then a course of tile 18 inserted with the holding member in place with the shank extending into the buckstay. The length of the slot in plate 2-1 will provide sufiicient clearance. so long as the tile is laid approximately near the center of the fixed member.

It will also be noted that. by making the tile. the same thickness as the brick in the wall. the length 01 the slot in the plate 21 and therefore the width of the fixed member against which this plate bears. will be reduced to a minimum. while. at the same time. obtaining the above-mentioned advantage. Moreover. the wall may be laid up in the normal way without special consideration for the holding tile except to insert a course ot such tile near the fixed member.

'hile I have described the preferred arrangement in which the slots in the plates 2-1 permit relative vertical motion between the brickwork and the fixed member. it will be understood that the same results may be obtained by fixing the plate. to the holding member and permitting the plate sufiicient freedom at. the top and bottom to permit the wall to move and to take up variations in the relative heights of the course of tile and the fixed member.

It will be understood that the construction of the holding member may be varied within wide limits. For instance, while I find it convenient to form the holding member as shown in Figs. 11, 12 and 13, it will be obvious that this form may be varied without departing from the spirit of my invention. Particularly the holding piece 21 may be made as a separate piece to be passed through a slot or the like in the shank 20, if desired.

I claim:

l. A vertically extending furnace wall comprising courses of brick or tile, one or more of the courses having grooved or recessed tile with the grooves or recesses extending entirely across the sides of said tile, a fixed member, and metallic tie pieces engaging the grooves or recesses of the tile and connected to said fixed member, the connections between the grooved or recessed tile and the fixed member allowing vertical adjustment between the grooved tile and the fixed member to an extent at least as great as the thickness of the brick or tile in the courses adjacent to the course or courses containing thegrooved tile.

2. A vertically extending furnace wall having therein a plurality of courses of brick or tile, the brick or tile of said courses being of substantially the same thickness, one of said courses having grooved or recessed tile with the grooves or recesses extending entirely across the sides of said tile, a fixed member, and metallic tie pieces engaging the grooves or recesses of the tile and connected to said fixed member, the connections between the grooved tile and the fixed member allowing vertical adjustment between the grooved tile and the fixed member to an extent equal to at least the thickness of one of said courses.

3. A vertically extending furnace wall containing a plurality of courses of brick or tile of substantially the same thickness, one of said courses having grooved or recessed tile with the grooves or recesses extending entirely across the sides of said tile, a fixed member, and metallic tie pieces engaging the fixed member and the grooves or recesses of the tile and having their groove-engaging portions entirely between the top and bottom edges of said grooved tile, the parts being arranged to allow the tile to move in at least one direction in a generally vertical plane.

4. A vertical furnace wall having a plurality of courses of brick or tile, with the brick or tile in the several courses of the same thickness, metallic members each having a shank and a head and connected to tile of one of the courses, the tile having a recess open at one side to receive the head and the shank with the shank extending beyond the face of the wall, a fixed member extending across the face of the-wall and having a slot therein through which said shanks pro- 'ject, a plate for each shank arranged to span the slot in the fixed member, said plate having aslot at right-angles to the slot inthe fixed member and said plate being free to move on said fixed member, and a cross piece at the end of each shank to extend across the slot in the plate.

5. A vertical furnace wall having a plurality of courses of brick or tile, with the bricx or tile in the several courses of the same thickness, metallic members each having a shank and a head and connected to tile of one of the courses, the tile having a recess open at one side to receive the head and the shank with the shank extending beyond the face of the wall, a fixed member extending across the face of the wall and having a slot therein through which said. shanks project, a plate for each shank arranged to span the slot in tho fixed member, said plate having a slot at an angle to the slot in the fixed member and said plate being free to move on said fixed member, and a cross piece at the end of each shank to extend across the slot in the plate, the length of the slot in said plate being greater than the sum of the thicknesses of the bricks or tile and the thickness of said shank.

(3. A wall having bonding tile laid up in pairs in contact with each other, each of the adjacent faces of each pair of tile having a relatively deep recess therein and a relatively shallow recess extending from the deep recess to the end of the tile, the faces of the tile opposite said adjacent 'faces being unrecessed.

7. A wall having bonding tile laid up in pairs in contact with each other as headers, each of the adjacent vertical side faces of each pair of tile having a relatively deep recess therein and a relatively shallow recess extending from the'deep recess to the outer end of the tile, the faces of the tile opposite said adjacentfaces being unrecessed.

8. A furnace wall comprises courses of brick or tile, one of said courses having grooved or recessed tile, a fixed men'iber, metallic tie pieces engaging the grooves or recesses of the tile and connected to the fixed member, said tie pieces having heads and shank portions with the shank portions extending beyond the face of the wall, said shank portions having shorter dimensions transverse the courses than the thickness of the tile engaged by said tie pieces, the connections between the tie pieces and the fixed member allowing relative adjustment between the grooved tile and the fixed member.

9. A furnace wall having a plurality of courses of brick or tile, metallic members each having a shank and a head and connected to tile of one of the courses, the tile having a recess open at one side to receive the head and the shank with the shank extending beyond the face of the wall, a fixed member extending across the face of the wall and having a slot therein through which said shanks project, a plate for each shank arranged to span the slot in the fixed member, said plate having a slot at an angle to the slot in the fixed member and said plate being free to move on said fixed member, and a cross 5 1' )iece at the end of each shank to extend across the slot in the plate.

DAVID S. JACOBUS.

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