US1016454A - Fire-brick arch for locomotive fire-boxes. - Google Patents

Description

E. P. STEVENS.

, FIRE BRICK ARCH FOR LOGOMOTIVE FIRE BOXES.

APPLICATION FILED NOV. 1,1910.

1,01 6,454! 7 Patented Feb. 6,1912

-. I UmTEDsTATEsrATENT "OFFICE.

Enoch r. srsvnns, or' 'oRcA'N PARK, ILLINOIS.

rmaaaioxanon: r03 rooo vrorrvn FIRE-BOXES.

' To all iimcy concern: I I it Be it known that 'I, ENocH P; STEVENIS,

' acitizen. of theUnited States, residing at -Morgan Park, in the county of. Cook and .State'of Illinois, have invented certain new and useful Improvements in F ire-Brick Arches for Locomotive Fire-Boxes," of which t-he following is a specification.

i The invention. relates to improvements in fire brick arches which ext-endifrorn one side to the other of thefire box ofalocomotive,

' crease the durability of the water pipes supfurther, to obtain an arch whichcan be and from the front wall of the fire boxtoward, but not-to, the back wall thereof.

- The object of this invention is to obtain a'fire brick arch Which-will bev easily built into place in the fire box and which will not only be'durable, but Which will, also, in-

porting the arch; .to obtain an arch which will aid combustion in the fire box and tend to prevent cinders leaving the fire box; and

taken down without destroying the supporting water pipes thereof. a

The manner in which I attain-the above named, and other hereinafter recited results is fully set forth in the drawing and description about'to be given, of the mech-, amsm embodying sa1d invention.

of the fire bricks which form said arch,

Fig. 4 is a front view of -a fire brick.

The same reference letter is applied to designate a given part throughout the several figures of the drawing.

. A -'is the front'of a locomotive fire box;- F, F, are tubes; B the back, C the top and D'the grate of said fire box.

- E is a fire brick arch embodying this in vention, and is built up with the fire bricks e, e and e resting on and covering the water tubes F, F. The fire bricks e are provided'with the projection g which is made for the purpose of increasing the length of 'theside h which comes in contact with the 'side of the fire box A. The side h, is pro -vided with the recess 2', whichis substantially oftbe'smntourofone half of one of I Specif cation of Letters Patent. Application filed November 7, 1910.

scribed.

. box.

Serial No. 591,018.

the .pipes or water tubes -F, and the end of recess 2' is cutaway to permit said bricks Patented'Feb. 6, 191 2.

e to .be turned into place with the water a tube in the recess. v This placinga-nd turning of the firebricks -e' is substantially the same .as the turning and placing in position of the fire bricksejand 6,, about tobe de- The fire bricks and e are similar, except that the bricks e are deeper than the bricks e are. Both of these bricks are. pro-- vided, .at both ends thereof, with recesses i,

of the'brickse, (also lettered 2'). The manner ofplacing' the bricks e and e" inv place on the water tubes F,;F, is well illustrated in Fig, 3, as is also the positionof these bricks onsaid tubes after they are properly placed. I

After the several bricks 6,6 and e" are -in place on the water tubes F, F, and while the arch is being built up, the cut away por tion (1 is filled with. a mixture ofwetted fire clay, (unburned); of a thick pasty con which are similar to the recesses on one end sistency, (7 0, Fig. 3). which mixture becomes L baked when-the fii'e box isput into use by? the building of a fire therein.

By alternating the fire bricks e and e in a row resting on the tubes "F, F, recesses will be formed on the under side of the arch embodying this invention, while by using only fire bricks efa very durable construction is obtained, which is well capable of resisting the flames of the fire in the fire I have found it desirable to build at least the middle row, in a fire box which is provided wit-l1 four water tubes to support the arch, entirely of the bricks e, and

to build the remaining rows of bricks e and e arranged to alternate 111 a given row, and also in the next ad acent row (which 1s made of bricks e). The depth of the bricks 6 may also be made to vary correspondingly 'with' the variance of bricks e, e, or theymay all be made of the same, depth, as preferred.

Those skilled. in the art will readily un- I derstand that the row of bricks between the middle tubes F is subjected to greater heat than are .the remaining rows. And also, that the portion of the water tubes on which the bricks of the arch rest, when said tubes are underneath the arch. that is,the arch resting thereon, are subject to greater fluctuations of temperature than is the portion between said arch and the back B of the fire .box, and that protecting the said tubes in the mannererein described and illus trated,"the liability of t eir giving way is lessened; but it hasher tofore been found impossible to place the firebricks forming the arch on the water tubes so as to embed said-tubes in the arch as is done by me in [this device. The rounding of the ends of the an. arch consisting of fire bricks respec- I "recesses which 'fit' to the'water tubes is termed'by me chamfe'ring an'd'said ends are, therefor, said to be chamfered.

'Iclaim';

1. "locomotive f fire box having 'water tubes extending" from the 'front to the back walls thereof, in combination with tively'j provided with recesses in the ends which come adjacent to said tubes, said recor're'sponding ,in v shape with said tubes'and chamfered-"at one end to permit the"turning of the bricks'into position on vided with recesses in the ends which come" adjacent to said tubes, saidrecesses. correspending injshape with said tubes and vember, 1 910,

chamfered atone end to permit the turning "of the bricks intoposition' on the tubes and some of said bricks made of 'a given thickness and the remaining ones of a less thick-., ness, to obtain recesses on the under side of the arch built up therefrom, and non-combustible material in the spaces insaid arch 1 which are made by the 'chamfering of the ends of the recesses. 3.'The combination of a locomotive fire box and water tubes extending from the front to the-back walls, thereof, with a fire brick arch consisting of a plurality of rows of bricks from the front wall of the fire box toward theba'c k wall, and each of said rows consisting of a plurality of bricks, said fire bricks respectively provided with recesses inthe ends thereof which come adjacent to said tubes, said. recesses corres onding in shape withs'aid tubes and charm ered at one -end to permit theturning of the bricks into .position on the, tubes, and non-combustible material in the spaces. in said' arch which are made by the chamfering of the end of a the recesses.

I Signed at Chicago, this 3rd day-of No- ENocn P.' STEVENS.

In the presence of- CHARLES TURNER BROWN, Com A. Am ne.

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