US240005A - Spark arrester and consumer - Google Patents

Description

no Model.)

A .-BERNE'Y. SparkuA rrester and Consumer. No.- 240,005.

' Patented April 12',

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UNITED STATES PATENT Y OFFIG:

ALFRED .BERNEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE GLOBE COMPANY, OF HARTFORD, CONNECTICUT.

SPARK ARRESTER AND CONSUMER.

SPECIFICATION forming part of Letters Patent No. 240,005, dated April 12, 1881.

' Application filed March 12, 1861. (No model.)

To all whom it may concern Beit known that I, ALFRED BERNEY, a citizen of the United States, residing at the city of Boston, in the county of Suffolk and 5 State of Massachusetts, have invented certain new and useful Improvements in Spark Consumers and Arresters; and I do hereby declare the following to be'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

r My invention relates to that class of spark arresters and deflectors in which the sparks,

air, steam, and unconsumed products of combustion are deflected and returned to the furnace or ash-pan to aid the combustion of the fuel as well as the sparks; and the object is to consume the sparks and products of combustion in a more thorough manner than has been done heretofore.

The invention consists in the construction 2 and arrangement of parts, as will be more fully described hereinafter, reference being had to the accompanying drawings and theletters of reference marked thereon.

In the drawings, Figure 1 is a longitudinal vertical section of alocomotive-boiler with my improvements in position. Fig.2 is a vertical cross-section on line as m. Fig. 3 is a detail view of the furnace and return-pipe leading into the ash-pan.

1n the drawings, A represents a locomotive-boiler, having the usual furnace,B, tubes C, smoke-arch 1), and chimney or smoke-stack E. The chimney is provided with an inner pipe, F, orer which is arranged a cone, G, and wire-netting H, and at its lower end is an ordinary draft or petticoat pipe, I, below which are the usual exhaust-tips, K. Any

other suitable cone and wire-netting may be employed than the one shown, as the sparks are merely checked and turned down into the annular space formed between the -inner and outer barrels of the chimney, which are secured to a saddle, L, provided with inclined guides that lead into a pipe, N, which is con- 50 nected to the return-fines by an auxiliary chamber, B, into which the sparks and products are drawn by an exhaust or live steam jet, M, and forced through the return-fines 0 into the furnace or ash-pan.

Tubes-(shown in dotted lines) may be extended from chamber R to the front side of the smoke-arch, to admit additional air, if required, and a damper may be arranged in said tubes.

The flues connect with a vertical line, P, havinga curved end, which extends between the two grates ab in the furnace. The flues l? are protected by a casing, Q, composed of fire-brick, asbestus, or other suitable non-conducting material, held in place in any wellknown manner.

The lower grate, upon which the sparks, &c., are thrown, assists in the combustion of the fuel, as small pieces falling upon it from the upper grate are retained by it.

If the fines are large enough and. the force or quantity of steam is sufliciently great, all the air required for the proper combustion of the fuel can be forced into the ash-pan. By this means the coals and cinders from the 75. grate or ash-pan are prevented from setting fire to buildings, wood, 850., and in case of snow-storms the use of ash-pan doors is obviated.

The benefits of steam and hot air to aid in the combustion of fuel are well known, and a locomotive may be equipped with the air and steam pipes combined with spark-arresting devices or not; but it will always be more economical to employ them together.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is-

1. 'In a'spark arrester and consumer, the return-flues O, having the vertical or curved o ends, protected by a casing of fire-brick or other non-conducting material,- arranged within the furnace, substantially as specified.

2. In a spark arrester and consumer, the combination of the chimney E, saddle L, pipe 5 N, and auxiliary chamber It with the returnflues 0, having the downward-projecting ends protected by a non-conducting casing and extending between the upper and, lower grates of a furnace, substantially as set forth. 10o

3. In a spark arrester and consumer, the 4. In a spark-arrester, the combination of combination of the chimney E, having annular the grates b and ash-pan 12, substantially as set space, the saddle L, provided with inclined forth. guides leading to the pipes N and auxiliary In testimony whereof I affix my signature 5 chamber'R, and the steam-jet M, with the rein presence of two witnesses.

turn-fines 0, provided with curved ends, protected by a non-conducting casing and extend- ALFRED BERNEY' ing into the furnace or ash-pit, all arranged -Witnesses: substantially as shown, and for the purpose I. N. BERNEY, [0 herein described. S. H. WALKER.

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