US1448879A - Suspended furnace roof - Google Patents

Description

Mar, 20, 1923a W. C. STRIPE. SUSPENDED FURNACE ROOF.

FILED AUG.9. 1921.

Patented ar. 2li), i923.

WILLIAM C. STRIPE, 0F UPPER DARBY, PENNSYLVANIA.

SUSPENDED FURNACE ROOF.

Application filed August 9, 1921. Serial No. 490,823.

T 0 au whom t 'may concern:

Be -it known that I, WILLIAM C. STRIPE, a citizen of the United States, and a resident of Upper Darby, in the county of Delaware and State of Pennsylvania, have invented certain new and useful .Improvement-s in Suspended Furnace Roofs, of which the following is aspecification, reference being had to the accompanying drawing.

The.- invention relates to the roofs or arches of heating furnaces,.boiler furnaces and the like of various types 'and more particularly to means for suspending the individualgbricks ofi vwhich the arch or roof is composed, afprinci'pal4- object of the invention being to provide means whereby any' of the bricks may be readily removed or replaced without disturbing the other bricks adjacent thereto.'

Further objectsiof the invention are to provide means-for suspending individuall bricks to forma furnace roof or arch which are simple in construction, .of relatively low cost and which may be conveniently utilized in suspending the bricks during the initial construction of the arch or roofand readily operated when it is desired to move one or more bricks therefrom for renewal or replacement.

A still further object of the invention is to so arrange and construct the means which are cooperative' with the individual bricksin efecting suspension thereof, that a brick of' very simple Adesigm and form may be, employed, therebyfacilitating the manufacture of the bricks-and reducing the cost thereof toV a point not materially ineXcess' of ordinary bricks of similar material hith-v erto utilized 'for the construction of furnace arches and roofs, while by reason of the particular construction and arrangement of the several elements employed, an efficient Ventilation of the brick` or4 tile suspending means is provided, thereby lessening the injurious effects thereony of the high temperatures inthe subjacent fuel bed. vi

The invention further includes all of the other Various objects and novel features ofconstruction and arrangement hereinafter more particularly described or shown in the accompanying drawing. l

Since my invention is capable of use in many types of furnaces and generally similar apparatus, I have not shown the same in the accompanying drawing as embodied 1n any completed or specific furnace or the like, but only in connection with a fragmentary portion of the roof or arch of such a. structure which may be of any suitable form or design. In the said drawing, Fig. l 1s a fragmentary side elevation on line l-l in Fig. 2 of such portion of a roof,

Vone of the individual bricks comprising the same being partially lowered from its operative adjusted position inthe roof to illustrate the manner of inserting or removing individual bricks, and Fig. 2 is a top plan View ofthe portion of the roof shown in F 1g.1. Fig. 8 is a section on line 3-3 in Fig. 1 looking in the directionjof the arrows; Fig. 4 is a vertical section through one of thebricks and supporting means; Fig. 1s an enlargedv perspective view of one of the .supporting slides removed Alfrom ahc hanger beam, and Fig. 6 a fragmentary top plan view showing a slightly modified form of the invention. Like numerals are used to designate similar parts in the several figures. j

In the'practice of my invention, a plurality of hanger beams 2 are arranged in parallel relation either transversely or longitudinally above the space to be roofed or arched, these beams being supported in position in any suitable way as by locating their ends on suitable supporting walls or abutments or by suspending the 4beams in any convenient manner by hanger rods 4- and positioned on each of the' hanger beams preferably prior to the 4latter being placed in position, each of these slides comprising a pair of inwardly directed oppositely disposed spaced ends 11 separated for a somewhat-greater distance than the thickness of the vertical web 5 of the hanger beam, the metalofwhich the slide is composed depending between the ends in a curved or other form approximating the curved or other Surface of the under side of the T 6, the radius of curvature of the inner face of the curved portion of the slide however, being preferabl slightly greater than that of the under si e of the T, so that when the ends 11 of the slide are engaged over the upper surface of the T, the slide will be supported vertically on the hanger beam with a slight clearance 13 between the under side of the T and the adjacent surface of the slide and a substantially similar clearance 14 between the inner faces of each of the ends 11 and the adjacent side of the vertical web of the beam. j

Preferably the number of slides positioned on each beam in the manner described is double the number" of bricks which are to be supported to form the ortion of the roof adjacent that-particular cam, although a greater or less number of slides in proportion to the number of bricks employed may be utilized if desired. Thus in the preferred construction, if ten bricks are to be supported from any given' hanger beam, preferably twenty slides will be positioned on the beam with a view to utilizing two slides for effecting the support of each of the bricks.

The particular form of the bricks B employed in the roof or arch may be varied as.

desired, but ordinarily and as shown in the the larger portion of the slot in the brick when two or more slides may then slide along the beam into the slot to assume substantially the position as shown in Fig. 2; in other words, so that whentwo slides are employed for eachbrick they will occupy a position in which each of them is substantially equidistant from the adjacent side of the brick and from the other slide. Under these conditions the individual brick will vthus be supported in proper relation 'with the hangerl beam through the engagement of the overhanging lips 21 of the brick with lthe upper surface ofthe slides' which, in turn, are supported on the hanger beam through engagement of the under sides of their respective overhanging lips 11 with the upper surface of the T on the, beam.

Thus by consecutively raising the bricks into proper side by side position and moving theV slides along the beam to engage them as aforesaid, the entire roof or'arch may be readily built up, the ends of each brick contacting with the adjacent ends of the corresponding brick supported from the adjacent hanger by reason of the spacing of the hanger beams, and the sides of the various bricks of course lcontacting with the sides olf the adjacent bricks as best shown in Fig.

- 2. Of course if desired suitable cement may drawing each brick will be of generally rec tangular form, the sides and bottom being substantially plane. Extending transverselyl across the top'of each brick' and preferably formed therein when the brickis made, is a slot 16 which, at a suitable distance below the upper surface 17 of the brick is under-cut horizontally as at 18 lin opposite directions, the outer extremities of the under-cut portions being connected by a surface 20 preferably of generally similar contour to the under surface of the slides 10. Each brick is thus provided with apair of inwardly directed lips 21,y the adjacent surfaces of which are spaced apart for a considerably greater distance thanthe web of the hanger beam but lessthan the overall width of the slides, theportion of Ithe slot beneath' the lips being sufficiently large to loosely contain the slideswhen disposed therein as hereinafter described. I

In the operation of assembling a roof or arch' with the various parte adapted to form the same constructed in substantially the manner aforesaid, the hanger beams vcarrying a suitable number of slides as hitherto described, are first positioned in the parallel relation, the distance between the respec- `tive centers of the adjacent beams being sub stantially equal to the width of the bricks to employed. Beginning conveniently at one side of the roof or arch, `:the indiyidual bricks are next consecutively ralsed into a position in which the Tat the lower end of the adjacenthanger beaml w11] extend into be introduced between the adjacent surfaces of the several bricks during the construction of the arch or roof should the same be deemed necessary.

In case at any time it becomes desirable to replace any of the individual bricks in the roof or arch, the removal of the old brick and the substitution of a new one may be readily accomplished without diefuibihg the adjacent bricks in any way, which is a very desirable feature, since in the operation of furnaces frequently one or more of the bricks burns out or becomes damaged in some other way while the. adjacent bricks remain in perfect condition. Underv these circumstances the damaged brick or bricks maybe readily removed by sliding the clips which suspend the same in opposite directions along the particular hanger beam on which the damaged brick is supported until the clips respectively pass beyond the sides of the brick which is to be removed and enter the slots in the adjacent bricks, thereby employed. More specifically assuming that brick B isto be removed without disturbmgthe adjacent bricks, the slides 10 which have been employed for supporting .it are slid in opposite directions until they assume the position shown in Figs. 1 and 2, which operation c-an readily be accom lished'by introducing a rodor other suita 1e instru.-

ment between the surface of the web of the hanger beam and the inner face of the overhanging lip of the brick.

rI`he brick being thus unsupported is now in condition to be lowered from its suspended position or chiseled out in case its adherence to the adjacent bricks is considerable and a new brick may then be raised into the cavity left by the old brick until the T of the hanger beam enters the slot in the brick for a.sufii'cient distance to permit the slides 1.0 to be again pushed along the hanger beam toward each other to proper position for supporting the brick in place.

In Fig. 6 I have shown a slightly modified form of the invention in which each of the slides 10 is utilized to partially support two adjacent bricks, the slides being positioned on the hanger beams so as to eX- tend'into the slots in the adjacent bricks. Under these circumstances it may be deemed advisable -to make the slides of relatively greater width than as shown in Fig. 5 in order that they shall extend sufficiently beyond' the face4 of each rick so as to afford proper support thereto. It is thought that the arrangement of the various other .parts and method of assembling or Adisassembling the `.arch under these circumstances will be obvious and that detaileddescription thereof -is therefore unnecessary.

or roof and which are adapted to readily' permit the vwithdrawal or insertion of new bricks from time to time as may be required .Without disturbing the adjacent bricks and without the employment of ,special tools or the necessity of skilled labor.

Furthermore, it Will be apparent that as the individual bricks or tiles are entirely out of contact with the hanger beams and are only supported therefrom at spaced points through the medium of the slides, a free circulation of air is at alltimes possible between the bricks and the webs ofthe hanger beams as well as in and about the slides and slots in the bricks, so that while the end faces ofthe bricks which form the under surface of the arch are exposed to direc-t action of the heat from the fuel bed, the upper parts of the bricks and the sup'- porting meansV are maintained at a relatively low temperature thereby materially prolonging the life thereof. .1

`While I have herein described with some articularity a preferred embodiment of the mvention, it will be understood that I do not thereby desire or intend to limit myself to any precise details of construction or arrangement; that the invention may be readily adapted for use in furnaces and arches of different types asmay be desired and that any suitable means otherthan disclosed may be employed for effecting the l support of the hanger beams without departing from the spirit and scope of the invention as defined in the appended claims.

Having thus described my invention, I claim and desire to rotect by Letters Patent of the United tates:

1. In a structure of the class described, the combination of a hanger beam having an enlarged lower portion, Imeans slidable on said beam and adapted to enga-ge said portion to receive support therefrom and a brick having an under-cut slot adapted to receive said slidable means when moved into said' slot from either end thereof, the overhanging portions of the brick adjacent the slot operating to retain said means from vertical displacement therein.

2. In a structure of the class described, thecombination of a hanger beam having outwardly directed flanges adjacent its lower extremity,-a plurality of clips slidable on sa-idxhanger beam and having overhanging lips adapted to engage said flanges, and a brick; comprising a transversely extending under-cut slot and overhangng lips adjacent thereto adapted to engage the upper surfaces of said clips when the clips are moved into said slot from the ends thereof.

3. In a structure of the class described, the combination with a hanger beam having a vertical web and loutwardly directed fiange's forming aT at the lower end thereof, a plurality of clips longitudinally slidable on said flanges each clip having inwardly directed lips spaced apart for a distance greater than the thickness of said web, and a brick having a transversely extending under-cut slot in its upper surface adapted to receive said clips when inserted in Said slot from the ends thereof, the overhanging portions of the brick adjacent the upper edge of the slot being operative to rest on said clips to afford vertical support to the brick.

4. In a structure of the class described, the combination of a plurality of transversely extending, parallel spaced hanger beams each beam having a vertical web and outwardly oppositely directed flanges adjacent the lower edge thereof, arranged to forma T, a plurality of clips having overhanging lips engaging said flanges and longitudinally slidable on each beam and a plurality of individual bricks, each having a transversely extending under-cut slot in its upper surface adapted to receive said clips when moved end-wise into the slot whereby each brick is individually supported in adjusted relation in the structure through the engagement of a plurality of said clips with each brick and with the T on the adjacent hanger beam.

5. In a structure of the class described,

iw j

the combination of a plurality of parallel spaced hanger beams each beam having a f vertical web and an enlarged lower portion,

a. plurality of slides independently movable longitudinally of each beam and adapted to oven engage said enlarged portion thereof, and a plurality of bricks, 'each having an under-cut slot in its upper surface adapted to receive a plurality of said slides and overhanging lips adjacent the slot, whereby when the enlarged portion of said beam is introduced into said slot below said lips and a plurality of the slides moved into the ends of the slot, each brick will be vertically and independently supported from said beam by engagement of said lips with said slides and saidcslides" with 'the enlarged por tion of said beam.

6. In a structure of the class described, a hanger beam having an enlarged lower portion and la vertically extending web, a plurality of slides engaging said enlarged lower portion and longitudinally slidable onthe beam and a brick having a. transversely eX- tending under-cut slot inl its upper surface and a pair of inwardly directed lips over- 'hanging the slot, the space between the lips my hand this 4th day of August A. D. 1921.

WILLIAM- C. STRIPE.

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