US1463055A - Furnace wall - Google Patents

Description

July 24, 1923.

' Filed ma 19, 122

1,463,055 M. LIPTAK FURNACE WALL I S eets-Sheet 1 MZ/meiLgh/r July 24 M. LIPTAK FURNAC WALL Filed May 19, 1922 2 Sheets-Sheet 2 M36} 7 ZWM 0F F ICE MICHAEL LIPTAK, OF ST. PAUL, MINNESOTA, ASSIGNOR TO A. P. GREEN FIRE BRICK COMPANY, OF MEXICO, MISSOURI, A CORPORATION OF MISSOURI.

FURNACE WALL.

Application filed May 19, 1922. Serial No. 562,126.

To all whom it may concern:

Be it known that I, MIGHAEL LIPTAK, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Furnace Walls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to furnace wall structures and is in the nature of a modification of or improvement on the Wall structure disclosed and claimed in my pending application Serial Number 550,841, filed of date April 8, 1922. Generally stated, the invention consists of the novel construction, arrangement and combinations of parts hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a perspective with some parts sectioned and some parts removed, showing a, portion of a wall embodying my invention; Fig. 2 is a fragmentary perspective illustrating one form of the wall structure; Figs. 3, 4, 5 and 6 are perspective vlews showing in detail, respectively, the sillforming block, the shelf-forming block, the key block, and the lintel-forming block, of the structure illustrated in Fig. 2; and Fig. 7 is a view corresponding to Fig. 2, but illustrating a slightly modified construction.

The complete structure, when designed for an outside wall, is made up of what is designated as a permanent masonry outer wall and a replaceable highly refractory innor wall. In the preferred arrangement, the permanent outer wall, through that portion that is subject to the most intense heat, is faced with highly refractory blocks or bricks, which become a ermanent part of said outer wall. Vertically spaced horizontal channels are formed in the inner face of the permanent outer wall and are preferably extended substantially from one end to the other of said wall. The lower surfaces of these horizontal channels are formed by-sill-forming blocks and the upper surfaces thereof are formed by linte1-- forming blocks, built into the permanent outer wall.

The replaceable inner wall comprises shelf-forming blocks that extend into the channels of the permanent outer wall and are locked therein by key blocks inserted between the same and the lintel-forming blocks The above provides an arrangement in which the sill-forming blocks, the shelf-forming blocks, the lintel-forming blocks and the key blocks, respectively, form continuous horizontal rows extending nearly or quite fromend to end of the wall in which they are incorporated.

lVith the above arrangement, it is not only possible but feasible to make all of the wall-forming blocks of the same cross-section as commercial bricks and to make nearly all of said elements the same length as commercial bricks.

Attention is called to the fact that, in this specification and in the claims, the terms bricks and blocks are used synonymously, except where the term brick is further qualified by the expression commercial, which latter expression, of course, indicates not only the cross-section but also the length of the brick.

The common masonry bricks 12 of the permanent outer wall may be laid in any desired number of brick widths and in the customary or any suitable way. The sillforming bricks 13 which, as shown in Figs. 1 and 3, are longer than commercial bricks and are permanently built into the brickwork 12 but project from the inner face thereof, are preferably the width of a commercial brick. The lintel-forming bricks 14 are spaced from the underlying sill-forming bricks 13, preferably approximately the distance of two brick widths, and they project inward from the permanent wall as far as the sill-forming bricks 13, thus forming the horizontally extended channels 15 above referred to in a general Way. The spaces between the horizontal rows of lintelforming bricks 14 and the overlying sillforming bricks 13 are filled in by masonry belts of fire bricks l6 laid the width of one brick in thickness.

The replaceable inner wall illustrated in Fig. 1 should be made u entirel of hi hly refractory bricks or bloc s, and t is repfiaceable inner wall includes horizontal belts of Q reeaoes fire bricks 17. These belts 17 are supported by the shelf-forming bricks 18, which, in this illustration, have all of the dimensions of commercial bricks and project through the replaceable fire brick belts 17 and to the. backs of the channels 15. Said shelf-forming bricks 18 are seated directly on the exposed upper surfaces of the V sill-forming bricks 13, and to interlock the same therewith, said bricks 13 are shown as provlded with raised beads 19 that are engageable with grooves 20 formed in the under-surfaces of said shelf-forming bricks. Key blocks 21 are placed on the shelf-forming bricks 18 and fill the space between the tops thereof and the exposed under-surfaces of the lintel-forming bricks 14. At their outer ends, the key ,blocks 21 are, in the construction illustrated in Fig. 1, flush with the inner ends of the shelf-forming bricks 18 and with the exposed faces of the fire brick belts 17. Said bricks 18 and 21 should, of course,

'be of fire brick or highly refractory material.

By reference to Fig. 1, it will be seen that in the upper portion of the wall, where the heat is not intense, the fire brick facing 16 has been omitted and the common brick masonry has been built to the inner surface of the permanent outer wall. This may be done for the sake of economy, without impairin the efficiency of the wall.

In t e arrangement illustrated in Fig. 1, the lintel-forming bricks 14 are not tapered, but the key bricks 21 are shown as slightly tapered so as to insure a close fit thereof in the channels.

In the modified construction illustrated in Figs. 2 to 6, inclusive, the sill-forming bricks 13 extend only part way through the common brick masonry 12 of the permanentouter wall; the self-forming bricks 18 are set edgewise, the key bricks 21 are laid endwise in a layer so that they do not project beyond the inner ends of the lintel-forming bricks 14"; and both the key bricks 21 1 and lintel-forming bricks 14 are slightly tapered. In this arrangement, the sill-forming bricks 13 are provided with the lock ribs 19*, and the shelf-forming bricks are formed with co-operating lock grooves 20*.

The construction illustrated in Fig. 7 is like that illustrated in Fig. 2, except that the replaceable fire brick belts 17 are laid ed e to edge as headers and, between these bets inward of the shelf-forming bricks 18, fire bricks 17 b are built in as stringers.

It is important to note that in the construction illustrated in Fig. 7, the inner ends of the shelf-forming-blocks 18 do not ex-. tend to the inner surface of the replaceable fire brick wall; but are protected from the intense flames by the projecting ends of the underl ing and overlying bricks 17*, the latter eing laid as headers.

What I claim is:

1. A composite furnace wall comprising a permanent masonry outer wall having therein a long continuous channel, in combination with a highly refractory replaceable inner Wall including shelf-forming blocks placed adjacent each other in a continuous row and extended into and anchored Within the channel of said permanent outer wall, said replaceable inner wall further includ: ing belts of highly refractory material supported by said shelf-forming blocks.

2. A composite furnace wall comprising a permanent masonry outer wall having there in a long continuous channel, in combination with a highly refractory replaceable inner wall including shelf-forming blocks placed adjacent each other in a continuous row and extended into and anchored within the channel of said permanent outer wall, and a continuous row of key blocks placed on said shelf-forming blocks in a continuous row and filling the space between the underlying shelf-forming blocks and the top of said channel, said replaceable inner wall further including belts of highly refractory material supported by said shelfforming blocks.

3. The structure defined in claim 2 in which shelf-formin blocks have interlocking engagement with the bottom of said channel.

4. The structure defined in claim 3 in which said shelf-forming blocks and key blocks have the cross-sectional dimensions of commercial bricks.

5. The structure defined in claim 3 in which said shelf-forming blocks and key blocks form continuous horizontal rows extending the full length of said channel and substantially the full length of the wall.

6. A composite furnace wall comprising a permanent masonry outer wall including sill-forming blocks and lintel-forming blocks vertically spaced to form a long continuous horizontal channel, said sill-forming blocks and lintel-forming blocks forming continuous unbroken horizontal rows extending the full length of said channel, in combination with. a highly refractory replaceable inner wall including shelf-forming blocks extending from said replaceable wall into the channel of said permanent outer wall and forming a continuous shelf the full length of said channel, said re laceable inner wall further including be ts of highly refractory material supported by said shelf-forming blocks.

7. The structure defined in claim 6 in which said shelf-forming blocks and sillforming blocks have interlocking engagement.

8. The structure defined in claim 6 in further combination with key blocks placed on said shelf-forming blocks and filling the eeepee I space between the same and the overlying lintel-forming blocks.

9. The structure defined in claim 7 in further combination with key blocks placed on 5 said shelf-forming blocks and filling the space between the same and the overlying lintel-forming blocks.

10. A composite furnace wall comprising a permanent Wall and a replaceable highly refractory inner wall, the latter including 10 shelf-forming blocks extended into said permanent wall but terminating at points outward of the exposed faceof said replaceable Wall, and fire bricks built into said replace- I able Wall and rotecting the inner ends of 15 said shelf-forming blocks. a

In testimony whereof I aflix my signature.

MICHAEL LIPTAK.

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