US766966A - Fire-arch for furnaces. - Google Patents

Description

PATBNTBD JMIG. 9, 1904.

D.- J. Mo FIRE AR-GH Y @KEN2-IB. 0R Emu-was.-

APPLIOATIH FILED D120.

l0 XODEL.

No. renace.

Patented August El, 190|.

PATENT Genion.

DGUGALJ. I'dCli-ENZE, 0F CHICAGO, ILLINOIS.

FllfeAFiOH FDF! FALNACES.

SPECIFICATION forming' part oi' Lettera Patent'. No. "$68,966, dated .August 1904.

l Application filed Iecamlmr 34, 1h03. 'Burial No. 188.433. (2b monili...)

To 'HIL whom. it may concern:

ile it known that I, DoUoaL J. lliclaxzrr.,

a citizen of the United States, residing at Chilcago,.in the county of Cool: and State of ll-linois, have invented certain new and useful lmprovements in Fire-Arches for`l `urnaees, o-t' which the following' is a specification.

The invention relates to that: claas of fur` naees which are provided with tirc-areiics across the front portion and above the lgrate, and particularly tothe construction and arrangement of parts by which such parte may be easily repaired and renewed, all of which will more fully hereinafter appear.

The principal object of the invention is to providea simple, economical, and eiiicicnt fire arch for furnaces. l

Other and further objects ol the invention will appear from an examination of the drawings and the followingdescription and claims.

The invention consiste principally in a lirearch for furnaces in .which there are cornbined a cross-beam arranged transversely across the furnace, u plurality of inwardlyextending' brackets secured thereto andextendng inwardly therefrom, and a plurality of longitudinally-disposed bars detaehably secured one to each of auch inwardly-extend ing brackets and tiredariek tiles detachably secured toeach of such longitudinal beams.

The invention consists, further and tinally, in the fcatu res, combinations of details of construction hereinafter described and claimed. In the accoxnpanyi'ng drawings, Figure 1 is a longitudinal sectional elevation of aiire-arch for furnaces as il; appears when constructed in accordance with these improvements.; Fig. 2, a. crosssectional elevation of the box-beam, showing a bracket .and longitudinal beam as they appear in connection therewith and with all the other parts removed; Fig. 3, a crosssectional elevation of a. lire-arch, taken about `line 3 of Fig. 2 looking in the direction of the arrow; Fig. 4, a sidefelevation of one of the longitudinal beams; Fig'.4 5, a plan view of the same; Fig. 6, a. cross-sectional. detail of one of the fire-bricks `.vith its metal insert; at the inner end of the arch, taken on line 6 of Fig. 3; Fig. 7, a cross-sectional elevation taken on line 'i' of Fig. Q, and Fin. S a crosa- 5 sectional detail taken on line 8 of Fig'. 2.

In illust rating and d'escribirnlr these improv@ menta l have only illustrated and will here describe that which l consider to be new, taken in connection with much as is old as is nec- SS csaary to properly disclose the invention to others, leaving,r outo' consideration other and well-known mechanisms which if illustrated and described herein would only tend to confusion, prolixity, and' ambiguity. 5

In constructing a tire-arch for furnaces in accordance with theec innnmements I take a box-beam r1 and arrange it transversely aereas the front portion of the furnace-chamber and above the .gratbars in any usual or ordinary manner, all of which is so well known in the art that it needs no further description or illust.` .tion herein. I next provide a plurality'of supporting-brackets band secure them by means of bolt-nut mechanism c to the irl- 7 ner upper side of the boze-beam, as shown' particularly in Figs. Q and 3. These brackets, as above Stated, are secured to the inner upper side of the box-imam and extend inwardly' thereroinmthat is. toward the rear ofthe furnace-chamber-and are provided with dove. tail grooves o7 in the lower portions thereof.

A plurality of longitudinal beams e is pro vided, one for each of the inwardly-extending brackets, each of which basadovetail portion j', adapted to en gage with the dovetti-l grooves in the inwardly-extending brackets and be supported thereby. These longitudinal beams are of such length that they extend entirely under the box-benino and considerably to the rear or inwardly from `the braekets,as shown particularly in Figs. 1 and 2. Their flanged. portions are notched or cut awa'y, as at; a, and are of :auch a length as to permit of ineertion or removal of the same from engagement with the brackets without drawing thelong tudinal beams the entire length of the same. The dovetail portions of the forwardend of the longitudinal beams are passed between lugs fr on the lower forward surface of the box-bearns, so as to position such longitudinal beams or, in other words, to prevent lateral displacement of the forward ends of the same. The renr portions ot" the longitudinal bemus ure provided with web portions t', extendini: over and in engagement with the inner ends of the bracket mechunisms, as shown in Fig. t?. to assist in holding the ports in po sttion. These lonigttuilinul beams ure provided with T-shaped grooves j in the lower from the intense ltcat'of the t'urmtce, nr well its to store up in a measure quantities o.' radiant energy, n 'plurnlity 0f tire-brick or tiles fr is provided for eseh longitudinal benin, and erich of these tiles is crooved nt its upper portion, so es to'eompleteiy spun the lower portions of the longitudinal beams. Each of these tire-bricks is provided with e T-headed 'metal insert I, the lo\'.'er,conical portions m` of which ure inserted in recesses in the tirebrick or tiles and anchored therein by means of the surrounding metal n, which is poured therein while in a molt-en statte. These T- shaped inserts :tre used for the purpose ofde tschublysecuringand holdinpr the lire-brick or tile in position. The ordinary lire-brickp and groot q are used to complete the surroundini,1r of the metal parts, as show-n in Figsl und 3, and protect the same` from intense heat, ull of which willbc understoodu'nd appreciated by those skilled in the art.

1. In it fire-arch of the class described., the combination of a cross-beam arranged transversely across the furnace, a plurality of inwardlyextending brackets secured thereto and extending inwardly therefrom, u plurality of longitudi-ntillydisposed bers dctnehubly secured one to euch of such inwardly-extend ino: brackets, und tire-brick tiles deteclutbly secured to each of such longitudinal bers, substantially :is described.

2. In n fire-arch of the class' described; the combination of beam mechanism arranged transversely across the furnace, a plurality of brackets attached the-reto and extendingI inwardly therefrom, n plurality of beams longitudinally disposed and removably attached to the inwnrdly-e.\ttendini,r brackets and p rovided with grooves in the lower portion thereof, and a plurality of lire-brick or tile provided with portions eng-aging the groove mechanism of the longitudinal beams to permit the easy insertion or removal of said tile. mechanism, substantially es described.

3. In a tire-arch of the class described, the

combination of a metal boxbeiim extending l transversely across the furnace, e plurality of brackets attached to the rear portion thereof and extending inwardly therefrom, a plurality of longitudinal beams-one vfor euch inywnrdlyextending bracket--detaclmbly secured to said brackets, und a plurality of tire- '.'emeeo brich or tiles provided with ntetnl inserts de tachably'eheaped with the longitudinal beams,

substzt n t inl lyns described.

l. ln u. li-retttch of the class described, the eombinution of trunsversely-arrnnged benin mechanism, it plurulity of brucitets utteched theretound extendinir inwardly therefrom, it plurality ot' lonuituditmllyarranged beams 4provided with ,grooves in their lower portions detaehnbly secured tothe inwardl v-extendiug brackets, und a plurulity of tirtirbriek ortiles provided 'with T-shaped insert-pieccs mi Choi-ed therein und tletucluibly en :mixing with the grooves in the longitudinal beams, substantially as described.

5. In u tire-arch of the class described, the combination of a metnl Abeum transversely disposed, u plurality of brackets secured thereto und extendini,r inwardly therefrom und provided with u dovctail groove in the lower portions thereof, u plurality of longitudinal beams provided with dovetuils in the upper part detuchably engaging the grooves in the in wardly-cxtendin g brackets and further provided with groove mechanism in the lower Y portion thereof, und e. plurality of lire-brick or tile mechanism provided with .metal inserts detnchubly engaging the groove of thel lot1 igitudinal beams, substuntizzdly asdescritetl,

6. In a lire-ureh of the class described, the comhinution of a box-beam trensverscly arranged, a plurality of bracketssecured to tl\e inner sido thereof und extending inwardly therefrom und provided with dovetail grooves in the lower portions thereof, a plurality of lomritudinul beams provided with groove mechanism in the lower portion thereof and dovetail mechanism dctachubly engaging the groove mechanism of the in wardly-extending bracket-s, and a plurality of tire-bricltor tiles provided with metal portions detachubly en gaping the grooves of the longitudinal beams, substantially as described. i

7; I n n `lire-ureh of the class described, the combinution oi' :t metal box-beam transversely disposed, a plurality of bruclvzets attached to the inner upper. side thereof and extending inwardly therefrom and provided with a dove teil groove in the lowerportion, a plurality of longitudinal beemsprovided with grooves in the lower portions and with dovetoils in the upper portions thereof detach-ably eintragim,T the grooves of the inwardlysex-tending breek-ets, a plurality of tire-brick or tile mechanism to surround and protect the lower pox"- tion of the metal parts, and T-shapcd metal inserts `anchored in cach iirc-brielc or tile to detachably secure the sume in operative position on the longitudinal beam mechanisms, substantially as described.

8. 1n a. 4tire-arch of the class described. the combination of a metal box-beam transversely disposed, a plurality of brackets attached to the inner upper side thereof and extending Ilo its

in ivurdly therefrom and provided with e dovetnl ls froove in the lower portion, e. plurality of longitudinal beams provided ,with `grooves in the lower portions and with dovetnilsin the upper portions det-nclinbly engaging time grooves of the inwnrdly-extending brnckets, lng mechanism on the lower forward portion of the metal box-'beam to prevent lateral displacement of the forward ends of tile longitudinal beams, substantially es described.

9. In n fire-nreh of the class described, t'ne combinn'tion of e metclbozr-benm tninsvcrsely disposed, e. plurality of brackets attached to the inner upper side thereof end extending inwardly therefrom and -provided with dovetnil grooves in the lower portions thereof, a pluralityoflongitudinel bemns provided with a T-slmped groove in the lower portion ende. dovetnil groove in the upper portion in detachable engagement with the dovetnil groove of the inward-@extending brackets extending entirely underend to the forward end of the box-benin end projecting inwardly from the inwnrdly-extending brackets, en upper web portion on the longitudinal beams extending over e. portion of the brackets to assist in po sitionini';r seid beams, lug mechanism on the lower surface of the box-beem in engagement with the longitudinal beams to prevent lateral displacement of the seine, and a plurality of iire-briek mechanism provided with T- slmpcd inetel inserts in detachable ongege- 4ment with the grooves in seid longitudinal beams, substantially es described.

10. 1n a fire-arch ofthe class described, the

combination of metallic crossbcam meenamism nrrernzed triinsverselyncroes the fnrnece,.

:eY plurality of longitudinnllydisposed metal bers detnclisblysn pported by sncljieroee-benm mechanism, and iire-brielc *fi-les provided with metallic inserts dntnclnibly secured to snch iongitndinnllywlismscd bers, substantially as described.

11. in n fire-arch of the clessdescribed, the combination of crees-benin ineclienism nrrnnged transversely neross the furnace, s. plurality of .longitudinally disposed bers sup ported 'by such' cross-beem mechanism, erich of which is provided with P. longitudinally and centrally disposed groove, nnd fire-brick tiles provided with centraliy-dispoeed metallic 'inserts detnclmbiy engaging the grooves of the longitud'innilvdisposed bars, su bstnntinll-y es described.

l2. in n. fire-mob of timeless described, the combination of motel cross-beam 'mechanism arranged transversely across the furnace, n plnrelity of longitndinellydisposed metal bers detnclmblysnpported by such erosie-beam mechanism, liredoriclr tiles provided with me tellicinserte, groove mechanism in one of such' perte, sind' intermesiiinghend mechanism in the other port for det'iclmbly supporting tlie metallic inserts with the fire-brick tiles in position, substantially as described.

DOUGAL J. MCKENZIE.

Witnesses:

Teoma F. Silentium, Annie C. Conn'reiur.

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