US1809209A - Method of supporting, constructing, and repairing furnace roofs - Google Patents

Description

June 9, '1931- J. P. M LIMANS ,8

METHOD OF SUPPORTING, CONSTRUCTING, AND REPAIRING FURNACE ROOFS Filed June 25, 1927 IL "A Patented June 9, 1931 UNITED STATES,

JOH P. MCLIMANS, or DULUTH, MINNESOTA I METHOD OF SUPPORTING, CONSTRUCTING, A D REPAIRINGFURNACE noors Application filed. June 25,

The invention pertains to furnace roofs and more particularly to a method of con struction or repair of roofs of furnaces of the open hearth type. 3 5 In the operation of open hearth furnaces,

the roof generally erodes most rapidly directly above the tap hole of the furnace due it is cooled and repaired. Formerly it has been the practice, in fact it has been neces- 5 sary, to discontinue the use of a furnace, cool it down and then have the carpenters erect on the inside an expensive scaffolding for the repair of this eroded part.

It is therefore an object of this invention to to provide a simple, inexpensive and effective method of repairing an open hearth furnace roof without, necessarily cooling down said furnace. v 7

Another object is to provide a method of repairing furnace roofs wherein the work may bewholly conducted externally of the' furnace.

Still another obj ect is to provide a method to be used in repairing furnace roofs whereby the part of said roof to be repairedis built up sectionally. 1

Other and further objects will readily oc-. cur from the detailed description, claims and r drawings appended hereto. 1 In the drawings, wherein like reference characters are used to designate like parts-.-

Fig. 1 is a perspective of a part of the roof and adjacent wall of a furnace of the open hearth type, illustrating the use of the device for repairing an eroded portion of the roof; Figure 2 is a Vertical section illustrating the procedure in repairing an eroded area; and

Figure 3 is a perspective of one of the bricks with its attaching handle for supporting the brick in place from a part of. the device. 7 p a The usual open hearth furnace comprising. go a vertical wall 10 and the roof 12 isshown u having a roof built up in the form of a corbricks arethen'slid into place enough to fill rugated surface formed of bricks 13 141,-

the object being to provide a greaterfradiating surface on the upper side of the arched Shapes As already; pointed tout, usually above thetap hole anie'rosion takes place, as

indicated by the dotted line15 of Figure 1, In order to repair this damaged area, the eroded part is squared up for the reception of the 'usulalst'andard bricks 18. A; strip of metal 16 having a supporting foot 17 is'then laid'on top of the arch, the foot portion rest. ing on top of the side wall and the remainder thereofcompletely spanning the hole, The bricks 18 are then indented or aperturedv at 19 by any convenient means, as a pick, and may bedone by workmen in the process of repairing. theroofa The wire handle 20, which is in the for nof a loop and provided with prongs, is then fastened to said brick by inserting the-prongsinto the indentations and it will be noticed that the handle on the side .of the brick to be placed nearest the metal strip'is offset from the side-of the brick v a to form a shoulder 21. The brick is then slid into place'resting on the skewblock and is prevented from sliding down into the furnace by frictional engagement with the other parts 2 of the roof and also by reason of the shoulder 21eresting on the metal strip 16. Other onerow ,or courseat that particular point until the last brick 22 is reach-ed. This brick I performs the. function I of a keybrick and .need not "be provided with handles-asit'is V used to wedgethatcourse ofbricks in position. ,VVhenthis brick is finallyreached, the springhandl-es 20 may bepulled fromltheir attachment and the, metal strip, may then be. moved" along to accommodate other successive courses of bricks, it being-understood that this. process is repeated until the hole is completely filled.

In repairing a roof, it is maintain the grooved or corrugated surface. I This is readily shown by Figure 2 wherein 13 and 14 represent the corrugated original;

not necessary to r surface of the roof and 18 represents the bricks supplied by this process and the dotted lines 23 represent the courses of bricks to be added to complete the hole.

It will be readily understood that other and various embodiments of the invention will be apparent to thoseskilledin the art and I do notwish to be limited by the exact embodiment shown, which it Will be apple-- ciated, is merely by of: illustration and. I

not limitation.

cleim: Q v v r 1. The method of repairing roofs which includes providing a movable: member for guiding and supporting a course of, bricks, placing a course-off bricks, sup-porting same by the e dge lof said member. and by frictional cqntactjwith, adjacent roof strueture, and v placing a key brick torelieveythemember of supporting function.

The "ethod f -rep-airi-ng roofs" Whichi'nolud-esplaci-ngarow of bricks having removable handles" eachi provided with a shoulder, successively supporting each shoulder, on a member provid'edbe'side eachroW, and-placing akey brick to relieve said member from supportingsaidbricks. r

3: lThe i-nethod of repairing furnace roof which includes squaring the hole to be; re-, paired laying a course ofbricks successively, eaclrbeing, provided'with ahandle-having a shoulderfor'sup-porting each brick on a mov+ able member providedalongsidethe course", and placing a key brick betweentheend brick and the furnace structure; to relieve the member from supporting' relation with said bricks and allowing the handlesto be removedi,

etk'llhefmethod of forming arelie's which includes; supporting the units confi tituting a course of material from a movablemember until said course is completed, and successively forming other, courses, supportingthe same f-romadjacent course andsaid move able memberuntil said last-namedcourses are completed.

5; An apparatus for'use in,repairing furnaee; roofs comprising,- in" combination, a brace adapted" to, span the: roof, said brace being of a-jsh'ape; conforming substantially to the motto be repairedpandja plurality of loop shaped inembershaving inwardly, ex

tending end portions. arranged'to engage withinthe sideiwalls of bricks forming the repair course, said members being, provided with shoulder,v portions for engaging. the brace whereby, the brieksare supported during therepair operation.

igne'dat Duluth, Minnesota, this 20th day of-Jii'ne', 19272 I p 7 JQHN P. S;

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