US1440446A - Furmace roof - Google Patents

Description

Jam.. 29 11923.,

w H. COTTON. FURNACE ROOF.

FILED JAN. 13, 1921. 2 SHEETS-sues? 1 Each the following is a specification,

Patented lara-2, i923 'certera'.

waarna n. carrots; or carence, rtnntors.

` runitacn neer.-

Application filed January t3, S9211. Serial No. @37,6%6.

.Ta'aZZ who/m, it may concer-n.'

Be it known that l, WALTER H. CorroN, aV citizen of the United States, and resident of Chicago, county cf Cook,'and State of lllinois, have invented certain new and useiiul improvements in Furnace `Roofs, of which and which are illustrated in the accompanying' draw- .'ings, forming a part thereof.

rllhe invention relates to furnace roots formed of brick, and particularly to roots which are not inclosed within the due or other chambers of the furnacerlhe object is to provide a roof which; may be readily assembled, will be durable, and easily repaired, and which is supported without lateral strains upon the furnacewalls.

rlllie invention is exemplified in the construction hereinafter described and illustrated in the accompanying drawings, in Which- Fig. 1 is a detail transverse vertical section through a furnace fire-box;

Fig. 2 is a. similar view taken on line 2-2 of Fig. 1;

lFigs. 3 anda are views in perspective etA two forms of brick used in the construction of the roof; and

lig. 5 is a partial detail plan viewv with portions broken away et a furnace.

rlhe side walls of a lire-box are shown at 10, 11, and one ot its end walls .at 12, these walls being of masonry and ot ordinary construction. 'lhe roof is 'constructed'ot brick of special form, as shown at 13, 14. These bricks are assembled in independent groups, as 15, eachgroup consisting of a central 'element, being one of the bricks 13, and a plurality of bricks 14 at each side of the central brick. .The number of bricks 14C used in each group lmay be varied, as shown six are ernployed.

of the central bricks 13 is provided on each ot its vertical side aces'with an upwardly facing rib 16, 17, and each ot the bricks 1t is provided on one side face with a complementary downwardly facingshoulder 18, and upon'the opposite tace with an upwardly facing shoulder 19 of the saine.

Jform as the shoulder 1 6, 17 rlfhese shoulders are undercut, and preferably given an S curve. The central brick 13 is ,provided with a T 'recess 20 in its upper tace, to receive the head of a hanger bolt 21 which depends from a Stringer 22.

'llhe central brick 13 ot each section of the root' being properly placed,- a pair ot the bricks 14:have their shoulders engaged with it, and the'sectionis built out by the addition ot more bricks of the same torni. As 60 many of these roof Isections are employed asmay be necessary 4to nll the entire space between ythe walls-ot thenre-box. I

'lhe outer end brick ot' each end section of the course bears against the adjacent .side

wall, asl() or l1, and preferably, although not necessarily, this wall is provided with an upwardly facing shoulder 23 upon which the brick rests. rllhe end bricks oit adjacent sections of the root are in bearing but not 70 interlocking engagement." While these lend bricks 1d of each section are shown as having upwardly facing shoulders, it is obvious that this detail is not essential but is preferably followed in order' to limit the number of 75 special terms required to be molded.

'llhe stringere` 22 are supported upon cross beams, as 2d, which are carried by the side walls of the femm, or preferably, as

shown, by metal' .columns 25 associated 80 therewith.

ltwill thus be seen that the root. iscomposed of a plurality of juxtaposed courses extending between opposite walls ot the furnace, the several courses, while being in bearing contact, being relatively independent. The several sections ot' each course are related independently and each is supported by the hanger associated with it.

The bricks of each section are held together by their. interlocking engagement, and each section may be built up and placed without requiring temporary support during the construction oft the roof. Should any ot the bricks ld be damaged and replacement become necessary, they may be easily removed, the end bricks of each section being withdrawn and subsequently as many others as may be necessary to reach the one which is damaged. Should it become neoeary to replace -one of the central bricks 13, the entire section is withdrawn and reconstructed, as many of the old bricks 14 being used as are found serviceable.

l' claim as my invention-.- 1. A vturiiaceroot comprsing two of interlocking brick and a central eement with which one member of each group interlocks, and a hanger attached to the central element and forming the support tor the entire mass.

2. Ar furnace root comprising, in combianda 'hanger for each section.

nation, a course of brick consisting of a plurality of independent abutting sections, each section bein composed of a plurality of interlocking rick, and a supporting a plurality of laterally juxtal Macnee nation, a course 4of brick consisting of ay plurality of independent abutting sections, each section being composed cfa plurality of interlocking brick, and a hanger for each section forming the sole support for said section. y Q

5. A furnace roof comprising two groups of interlocking brick and a central element with which one member of each group inn terlocks, and a hanger attached to thel central lelement and forming the support for the entire mass, said central 'element comprising a brick having laterally upwardly facing shoulders and said interlocki bers having complementary shoulders for engaging t Waarna n'. correu.

ng meme upwardly facing shoulders. v

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