US1178752A - Fire-brick arch. - Google Patents

Description

1.11. ROGERS. HRE mcK ARCH.

APPLl'c/mou mfp $511.24. 1913.

mm1 Apr. 11, 1916.

' Inf/em Mm/@mg MLA-7); M3.

. To all -wtlom t may concern.'

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JOHN '.D. `ROG-SERS, OF

PRINCETON,WEST VIRGINIA, AssIeNoit or'oNnIIALr To. H. c.

nLLnT'r, or PRINCETON, .wnsfr VIRGINIA.

FIRE-BRICK Anoia inverse.

Specification of Letters Patent. Patented Apr. gli, 1.916

-pplieation led September 24, 191,3. Serial No. 791,615.

Be it known that I, JOHN D. Rosiers, citizen of the United States, residing Vat Princeton, in the county of Mercer and State of West Virgin-ia, have invented certain new and useful' Improvements in Fire-Brick Arches, of which the following is a specification. v s

This invention relates to lire brick arches for boiler furnaces and has as its object to improvegenerally the construction of fire v brick arches such'- as are employed for the purpose of providing a combustion chamber locatedbetween the grate and the fiues of` the furnace. In the present practice such arches are supported or b raced by means of heavy cast 'iron brackets to which .the bricks comprising the arch are bolted. The em! ployment of these brackets,- however, pre-,

sentsnumerous disadvantages. They are o. necessity massive and expensive to install and the'bolts which .secure the bricks to the brackets soon burn out, allowing the bricks to fall into the fire and in time the 'brackets themselves become burned out and parts will fall into the combustion chamber 'thereby' choking the cleaning holes. v

The present invention therefore aims to provide ay fire brick arch which may be constructed from 'fire brick as now manufactured and placed upon the market without alteration and without'the employment of brackets or bolts and without in any way obstructing or rendering less eflicient the air passages through the arch.

I Another aim of the invention is tovso construct the arch that the passage of air through the air passages may be regulated by a damper in accordance with'the kind and quality of fuel being burned in the furnace, also according wto the color of the fire.

In the accompanying drawings: Figure l is a rear elevation, parts beingshown in section, of the lire brick arch embodying the present invention; Fig. 2 is a vertical sectional View on the line 2 2 of Fig. l.

cast steel and which, of course, extends across the re box between the grate and the flues as clearly shown in Fig. l of the draw ings. The'fire bricks comprising the arch proper are indicated by the numeral Q and these bricks arel of ordinary construction and are arranged in superposed relation. as

shown in the drawings, and each of the bricks is formed at suitable intervals with vertically extending openings H3, the openings being adapted to register when the bricks areprope'rly arranged, so as toform passagewaysextending vertically in parallel relationin the arch. The arch is capped by rmeans of cap bricks l and that one yof the the arch are, in the Ipresent construction of such arches, braced'fby means of cast ironA brackets to which the-bricks are secured by meansl of bolts, butv in'4 view of the disadvantages of" such a construction it vis pro- Vsufficient distance downwardly into openings 7 formed in the cast steel bearer 1, thepipes being lin this manner *securelyv anchored in the bearer. The. openings T extend vertically in the bearer ,and` fitted into vthe lowerl endA o-f eachvopenin'gis theneck. Sfof afunnelfQy these funnels constituting intakves'for the air'I lpassages,through the-pipes 6 and openingsq.. f1

5. whereb)v uponl forward movement of the locomotive. 1n the re box of which'the arch 1s arranged. air will be supplied to the fire .box of the furnace for thepurpose of secur-.

ingr a more complete combustion of the fuel.

In order that the passage -ofair-to the pipes G may be regulated. a damper l0 is arranged within the .neck S of each of the funnels'and the stems of the dampers are provided each with a short arm 11, all of the arms being connected by a rod 12 adapted to` be rocked. by an)7 suitable operatingy means (not shown) for the purpose of moving the dampers.

up an engine not in motion. It is then that` all the draft should be through the fire, as the draft is not sufficient to 'properly mix the gases and this additional air only tends to cool the fire box. Y

Having thus described my invention, what is claimed as new'is:

l. In a locomotive boiler, a metal bearer disposed at'the front of the fire box and formed with a plurality of vertical openings, a plurality of vertical straight metal pipes having their lower ends fitted in the vertical openings of the bearer, a plurality of heat resisting members slipped upon the vertical pipes to hold them in fixed relative ,position and iill the spaces between them to form a' bridge wall, said members being supported upon the bearer and a plurality of dainpers for controlling the admission of air through the vertical openings of the bearer andthe vertical pipes, said dampers.

being connected for simultaneous operation. 2. In a locomotive boiler furnace, a metal lbearer located near the front of the fire 'box atthe bottom .thereof and having a plu- 4`0 rality of vertical openings, a plurality of l vertically disposed straight. metal pipes jecting a short distance above the'nieinbers having their lower ends secured in the vertical openings of the bearer and in communication with said openings, a plurality of V45 heat resisting members slipped upon the vertical pipes and closing the spaces formed between .them to form abridge wall at the front of the fire box 'and between the sides thereof, the upper ends of the pipes pro- Tlie most important `feature of the applislipped thereon, andl other heat resisting members surinounting the beforementioned members and formed with elbow shaped openings which flare at their delivery ends and have their opposite ends vertically disposed and receiving 4the upper projecting ends of the pipes.

3. In a locomotive boiler furnace, a metal Y bearer near the front of the iire box at the bottom thereof and having a plurality of vertical openings which are enlarged dat their upper and lower ends, a plurality of lvertically disposed straight metall pipes having their lower ends secured in the upk per enlarged ends of the vertical openings of the bearer and in. communication withsuch vertical openings, a plurality of heat resisting members slipped upon the vertical pipes and closing the spaces formed between them to form a bridge wall at the front of the fire' box and between the sides thereof, the upper ends of the pipes projecting a short. distance above the members slipped thereon, other heat resisting members sui-mounting the 4before mentioned members and formed with elbow shaped-openings which Harel at their delivery ends and have their opposite ends vertically disposed and receiving the upper projecting .erls of the pipes, and necked funnels arranged below the bearer, 'with their necks fitted in the lower enlarged ends of the vertical openings of the bearer.

el. 'In a locomotive boiler firebox, atransverse refra :tory wall arranged at the for- Ward end lthereof and spaced from the flue sheet, a bridge member spanning theiirebox and supporting the wall, said wall being l provided with vertically extending passages, hollow Iinetallic wall supports secured at ltheir lower ends to said bridge member, ex!

tending upwardly in said passages, reti ining the wall in position and adapted t. .id-

mit ai'r to the firebox. s

In testimony whereof I affix my signature Ain presence of two witnesses.

.ioHNL-D. Roenes. [1.. a]

l Witnesses-:i

W. F. LoiiiNG, Gr.v C. BOWLING.

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