US1399127A - Buckstay-shoe - Google Patents

Description

PQE. KUN@ BUCKSTAY SHOE. APPLICATION FIL u 2o SSHEETS-SHEET 2.

Eva-MTK 4A TT ORNE Y.

AUG. 22, 192i.

' Patented Dec. 6, 1921.

F. E. KUNG.

BUCKSTAY SHOE. APPLICATION FILED IIUNE Is, 1920. RENEwED AUG. 22. 1921.

Patented Dec. 6, 1921.

@SHEETS-SHEET 3.

INVENTOR) I', Il," 4 yBY uNiTED STATESIPATENT OFFICE.

.FRED E. KLING, OF YOUNGSTGWN, OHIO.

BUCKSTAY-SHOE.

Application filed .Tune 19, w20, Serial No. 390,256. Renewed August 22, 1921.

ile it known that I, Finn) E. KLING, citiof the United States, residing at iouiigsti'iwii. in the count-y of Mahoning und ritate of Ohio, have invented certain new a nd useful Improvements in Buckstay- Shoes, of which the following is a specification.

, This invention relates to furnaces and has particular reference to an improvement in furnace structures, whereby 4the brick-work of the same is reinforced and strengthened -in such manner to protect the reinforcing means from undue strain from the heat ot' the furnace.

As is well known, the brick-work of an open hearth furnace is held together by steel framework, the vertical members of which are termed buckstays. The buckstays at e middle of the furnace, where the inside temperature is usually the highest. frequently warp and bulge out of shape en account of the 'e1-treme heat in the oi'ick-\vork bearing against rhein, and 'this trouble increases .istlie brick-work becomes reduced in thickness through the effect of the heat and haines. This, of course, very materially reduces the support afforded by the buckstays.

lt has been proposed to overcome this dil'iiculty by making the buckstays hollow, and running water through them to keep the metal cool. This. however, requires a conetant iow of water which greatly adds to operating expenses, and furthermore, the buckstayof this character is, in itself, expensive.

Accordingly, thepresent invention hasin View anovel buckstay construction of a more or less skeleton character which does not come in direct contact with the wall, thereby providing a buckstay which has little or no heat transmitted to it from the Walls of the furnace.

A further object of the invention is to provide a. simple and substantial construct tion Which is not only economically manu-' factured, but which is also easily kept in repair and, iii fact, requires practically no attention after being installed, thus lessening the cost of maintenance and reducingoperating expenses.

With the above and other obJects in view, which will more readily appear as the nature Specicatonef Letters Patent-- Patented Deb.. 6, 1921.

Serial No. 494,375.

of the invention is better understood, the same consists in the novel construction, coinbination andy arrangement of parts hereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment of the invention is shown in the accompanying drawings, in which- Figure l is an elevation of a portion of an open hearth furnace, showing the general location and arrangement of the buckstays.

F ig. '2 is a vertical sectional view on the line 2-2 of Fig. l, looking in the direction of the arrows.

Fig. 3 is a perspective view of onevof the single wall bearing shoes forming a part of my invention.

F ig. l is a perspective view of one of the double wall bearing shoes. l

Fie. 5 is a horizontal sectional view on the line oof Fig. l.

Fig. (i is a l'iorixontal sectional view on the line 6 6 of Fig. l.

Fig. 7 is a detail sectional view through one of the. buckstays, showing more clearly the relation of the shoe carried therebyto the wall of the furnace.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

Referring to Fig. l of the drawings, it will be observed that there is shown a portion of an open hearth furnace, designated generally as F, and including the masonry side walls lV and roof R. According to the present invention, it is proposed to provide suitablev reinforcing buckstay elements, designated generally B, arranged at suitable intervals along the exterior of the furnace and extending'below the ground or lioor level (i to provide a firm foundation or base, and also 'extending upwardly abovev the roof R, where they are connected by suit-able reinforcingv channel beams or'like members C, which latter may be connected with corresponiiling members on the opposite side of the furnace by the tie rods T in the well known manner.

ln connection with the buckstay members B, it will be observed 'that the same preferably include the separate vertically disposed slabs oi' beams 1 and 2, the upper ends of which, as previously stated, are rigidly connected with the channel beams C of the overhead struct-ure, while the lower ends thereof extend down to the bottom of the foundation ot' the lfurnace.. These beam members 1 and 2. constituting the buekstay l, are spaced 'trom each other. as will be observed trom Fig'. l, and, as will hereinafter more 'fully appear. are also spaced trom the masonryv `I'urnace walls .\V. Each bnekstay clement. including the beams l and 2. is also spaced from the other b v means ot a reinforcing' casting' element. designated generally as ii. This reinforcing' base casting ma)r be ot any suitable character and design, and as shown. extends trom the lower part ot' the t'oumlation of the furnace to a point above the 'loor or ground line (i, while the opposite side trame membersl l; thereof, are rigidly connected or bolted to the beam members 1 and Z of the lmekstays, as will be more clearly apparent from lfigsul and (i ot' the drawings.

lt has been already stated that the beam members l and 2 of each lbuclistay, aside trom being spaced Atrom each other.4 are spaced from 'the masonry 'oi the side walls W ol the furnace. and by reference to Fig. 2 this will be obvious. Primarily, the object in spacinjrthese beam members 't'rorn the wall is to prevent the conduct ot heat therelo t'rom the hot vt'urnaee walls.. rtherefore. as shown. the inner edges of each ot the members` l and L are. spaced` a suitable distance 'from the masonrvwalls ll", in such manner as not to impair their support or the strength ot'the furnace structure. To accomplish this, l proride each member with :i plurality ot separate and detachable wall bearing shoe members, designated generally as S. 'lhese shoe members `are preferably ol' such a construction that the inner tace therejo'lt hears against the wall. while the opposite side has only a limited area ot' contact with the beams o't the buekstay, and furthermore so constructed as to provide `heat radiatinrr san't'aces 't'o'r diseipating` the heat from the "Furnace wall so that practically none l"tlie. same conducted to the buckstays VReferring now to the novel construction ot the. wall-beariinf shoes S, it vill'be observed that the saine are 'preferably ot' single. and double type. Owing' to the construction hcretotoi-'e lesci'ibtal, in which the base. re-

inforcing and casting" members 3 extend up to a point just below tlhe doors l.) .ot the furnace. it would be impossible to use a shoe ot the single type, shown in Fig'. 3. at any point below the `top ot' the castings 2l, on account of. the side'iframe members 4f ot the lat-ter being bolted totheouter lor exposed laces ot each oi the beams. Therefore, it is necessary to use double shoes such asare shown in Fig. 4i yand which are'connected to `both members land 2 ot Athe buckstay below the top of the base astings 3.

, tace 5 ot the beam.

.eludes the spaced attaching arms (i and an intermediate beam-bearing or abutment boss.

T which is `in vertical alinernent with another beaiii-bearing.,r boss S projecting' from the body v9 of the shoe. The base of the shoe S provided, in. addition to the members just described, with the offset [langes 10, which are so arranged that, with the other members Vtorined on the outer face ot the shoe, they. present an extended cooling surface. The inner tace 11 of this sing-le shoe is preferably ot' flat formation and extended area, whereby a firm and rigid Contact with the. masonry side walls lV may be obtained.

Each oi the shoes above described is pivotally and detachably secured to the beams 1 and 2 by means ot the pin l2 passing through the, holes 23 in the vbeams and holes in the arms 6 which register therewith.

When the shoe thus held in position on the b eani. the lugs and S will ordinarily com taet therewith, as shown in Fig. 2, to maintain the 'Face 1l. parallel with thc` vertical lilowever, owing to the pivotal connection of the shoe to the beam, it will be. apparent that a limited amount ot play is provided for the shoe to compen-` sate i'or the expansion' and contractin.' due to the action ot the. heat on the furnace walls.

The double slices, such as shown in Fig. t o't the drawings,v preferably include a relatively tlatrxbody portion `13, having' a flat wall contacting face 14: of extended area. and the beam atta. :l1inga,rms 15 and 16 Between each of the'arms'l and 1G and the outer side edges ol: the shoe, there is pron spo vided a beam bearingT boss 19, in vertical alinement with boss 2t) formed at the lower part ot' the shoe. lVhen the shoe is attached to the beam'members 1 and 2, as shown in Fig. G ot the drawings, the bosses 19 and 20 will bear against the face 5 of each beam member, and thereby tend to 'maintain the wall contacting face 14 parallel to the said tace 5.

From the foregoing' it will be apparentthat a novel and distinctive feature of my Ainvent-ion is a buckstay including stay element which is spaced from the masonry wallsvof the furnace, and an intervening wall-bearing' shoe having a limited contact area with the stav and an extended contact area with the wall ot the furnace. bvionsly, if the shoesS at any time, need replacing this may be done at a minimum cost and in a7 short period of time, thus, greatly economizing in themaintenance` of this important part of the furnace structure.

lVithout Jfurther description, it is thought:v that the many features and advantages of the invention will be readily apparent, and it will, ot' course, be understood that changes in the vterm, proportion and minor details of construction muy be resorted to Without departingr from the spirit of the invention or scope of the appended claims.

I claim: i Y

l. In a' furnace construction, the combination with the furnace Wall, of a buckstaying a heat dissipating Wall contacting shoe havingr a limited area of contact with the buckstay, and an extended area of 'contact with the Wall. A

3. In a furnace construction, the combination with the furnace Wall, of a buckstay element spaced from said wall and loosely carrying a plurality of separate shoev members having flat Wall contacting surfaces on one side and heat radiating flanges on the other.

4,In a furnace construction, the combination With the furnace wall, of a huckstay element spaced from said Wall and pivotally carrying a plurality of wall-contacting shoes, said shoes each including offset attaching arms for enfraging with said bucle stay and stay abut-ment Vand spacing 'bosses having a limited area of Contact Withthe buckstay.

5. In a furnace construction, the combination with the-furnace Wall, of a buckstay spaced from said wall and including separate stay members, a' plurality of Wall-contacting shoescarried by the upper portions of said stay members, and other wall-contacting shoes carried by the lower portion of l said stay members, said other Wall-contacting shoes connecting bothnstay members.

6. In a furnace construction, the combination with the furnace Wall, of a bucltstay element including" separate 4verticall .arrangedl spaced stay members, `a plurality of separate and independent Wall-contacting' shoes carried by each of said stay elements at their upper portions and having a limited area' of contact therewith and havingI lan extended area ot' contact with said Wall,I double. shoe members at the lower part of saidj buckstay element land connectingA both ofsa-id vstay members thereof, said double shoe members having a limited area of Contact With'each of the stay members, and an extended "area of contact With'the furnace Wall.` 'I y.

In testimqaywhereof I do hereunto anx my signature-"inthe 'presence of two wit- IleSSeS.

Witnesses:

Jon-N A1. DITHIAN, CLARA HtNDsoN.v

:.FRED E.- KLING.

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