US1548928A - Furnace wall - Google Patents

Description

Aug. 11, 1925. 1,548,928

E. BOURBEAU FURNACE WALL Filed Jan. 28, 1925 Patented Aug. il, i925.

nrrnn STATES EDWARD BOURBEA, OF MINNEAPLIS, MINNESOTA.

FURNACE WALL.

Application led January 2B, 1925. Serial No. 5,369.

To all whom t may conce/m.'

Be it known that I, EDWARD BOURBEAU, a citizen of the United States, residing at ll/linneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Furnace lValls, of which the following is a specification.

This invention relates to furnace walls and the main object is to provide a composite wall consisting of a permanent masonry outer wall and a highly refractory re-placeable inner wall, and means of a novel and practical nature for anchoring the two walls together in a composite structure, whereby the inner wall may be firmly secured in place and readily replaced when damaged or burned out by the effect of high ten'iperatures which are created in furnaces using walls of this type. Further and more specific objects will be disclosed in the course of the following specifications, references being had to the accompanying drawing, in which:

Figure 1 is a perspective view of a wall embodying my invention, said wall being only partly built up so as to illustrate its entire construction.

Figure 2 is a perspective view of one of the lock head blocks forming a part of the outer wall structure.

Figure 3 is a detail sectional view through the wall as seen substantially on the line 3--3 in Figure 1. l

Figure 4L is a longitudinal sectional elevation through two of the lock head blocks, about as on the line 411 in Figure 1.

Figure 5 is a detail perspective view of one of the lintel plates used in the outer wall.

Figure 6 is a detail plan view showing a modification of my invention whereby it may be applied to an inside wall of a furnace, which is subjected to intensive heat from both sides and therefore required a replaceable wall on each side of the permanent wall.

Referring to the drawing more particularly and by reference characters 7 designates a substructure of tile or brick which serves as a foundation for and carries the main wall proper. The so-called outer or permanent wall consists of horizontal series of lock head blocks A, pintel plates or tiles B, and various intermediate or filler blocks or tiles C, which combine with the blocks A and B to form the outer wall intol a solid composite structure except for certain anchorage pockets (later to be described) in which certain members of the inner wall are anchored. The blocks A are securely connected, at their adjoining ends, by lugs S, at one endof each block, which lock into correspondingly shaped recesses 9, at the opposite ends of the blocks, and each lug 8 has a depending flange or bead 10, which seats, vertically in a corresponding grooveY 11 formed in the receiving recess 9 by an integral sill member 12 of the block, thus rigidly connecting the blocks and securing them against transverse or longitudinal play or movement with respect to each other.

The inner or replaceable wall, which is exposed to the intense heat of the furnace, is composed of highly refractory groups of tiles 13, 14 and D-E-F. The tiles `13 are laid in horizontal rows, .and are connected at intervals by the short columns of tile 14 which are preferably crossed, as shown. rllhe intermediate openings formed by the tiles 13 and 14: are filled or occupied by the anchor blocks D-E-F, which tie the inner and outer walls together. These anchor blocks project with their lock ends into pockets 15 formed on the blocks A and are supported on base portions 16 of the blocks, at one end, and upon the tiles 13 at the other end. The blocks E are straight at both ends, but the blocks or tiles D and F are provided at their inner ends with laterally projecting ribs 17 which lock into corresponding vertical recesses 18 in the pockets '15. Thus the blocks E act as key blocks to lock the blocks D and F rigidly in place, and the latter blocks can obviously not be removed until the key blocks E have first been removed. The pintel plates B are provided in their under surfaces with wedge shaped openings 19, directly over the blocks D-E-F. so

that the key block E may be pried up ,(see

Figure 3) and loosened so as to be readily removed. In the event that there should be any great resistance to the withdrawal of the block E it may be forced out by a rod or pin inserted in a hole 20, back of the block, so that it may be forced out. After the block E has been removed, the adjoining blocks F and D can also, of course, be easily removed and replaced.

ln the partition wall, shown in Figure 6,

the general construction and application of the invention is the same as shown in Figure l, except that two outer replaceable walls Gr and H are built up and anchored to the central wall I. The permanent wall l corresponds to the outer wall, in Figure l, and the lock head blocks A1 are provided with pockets on both sides for the reception of the anchor blocks D-EF of both replaceable walls Gr and H.

It is understood that various modihcations may be made in the general details of the invention as herein illustrated and described, providing, however, that such modifications come within the spirit and scope of the appended claims. Having now therefore, fully shown and described my invention, what l claim to be new and desire to protect by Letters Patent is z- 1. wall structure having a permanent wall and a replaceable wall, said outer wall including a horizontal series of adjoining interlocked lock head blocks, a pair of anchor tiles extending into each loclr head block from the other wall and forming a part of said other wall, and a removable key tile arranged between said anchor tiles of each pair to lock them rigidly with respect to the lock head blocks into which they extend.

2, A wall structure comprising a permanent wall having anchorage pockets there in, and a replaceable wall having anchor tiles projecting therefrom and into said pockets, said anchorage tiles having lateral projections: for locking engagement in said pockets, a hey tile adapted to be inserted between two ont said anchor tiles to hold them in locked positions, the portion of the outer wall immediately above said key tile ha ving a recess whereby the key tile may be pried up to loosen it from its normal locking position.

3. A wall structure comprising a permanent wall and a replaceable wall, said permanent wall having horizontal rows oif adjoining blocks having pockets with lateral recesses, said replaceable wall having pairs of anchor tiles extending into said pockets, each oi' said tiles having' ribs for engagement in said recesses, and a key tile inserted between the anchor tiles oli each pair 'l'or securing such anchor tiles in locked positions in said pockets.

4. A wall structure having a permanent outer wall and a replaceable wall, said outer wall comprising a series of lock head blocks having pockets, anchor blocks secured in said pockets and extending` into the replaceable wall, each ot said lock head blocks haring a lug in one end and a recess in the other end for receiving the lug et the adj a cent loch head block whereby the lock head blocks may be identically formed and locked together.

5. wall structure having a permanent outer wall and a replaceable wall, said outer wall con'iprising a series ot locl: head blocks having' pockets, anchor blocks secured in said pockets and extending into the replaceable wall, each oi said loch head blocks having a lug` in one end and a recess in the other end 'lior receiving the lug of the adjacent lock head block, the lug oif each block having a projecting Harige, and the recess of each block having a flange receiving groove, whereby the bloc-lis may be interlocked end to end and to prevent spreading of the blocks from each other.

ln testimony whereoil l aliix my signature.

EDVVABD BOURBEAU.

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