US769623A - Locomotive-boiler. - Google Patents

Description

No. 769,623- PATENTED SEPT. 6, 1904, J. MUHR. LOGOMOTIVE BOILER.

APPLICATION FILED MAR. 4. 1904.

N0 MODEL.

INVENTOR :Jaepfi Jfukr m 8 m w W ATTORNEYS Patented September 6, 1904.

JOSEPH MUHR, OF DUNKlRK, FEW YORK.

LOCOMOTlVE-BOILER.

SPECIFICATION forming part of Letters Patent No. 769,623, dated September 6, 1904.

Application filed March 4, 1904. Serial No. 196,513. lNo model.)

To all writ/mt it may concern:

Be it known that I, JOSEPH MUHR, a citizen of the United States, and a resident of Dunkirk, in the county of Chautauqua and State of New York, have invented new and useful Improvements in Locomotive-Boilers, of which the following is a full, clear, and exact deseription.

The object of the invention is to provide certain new and useful improvements in locomotive-boilers whereby an even draft is produced through all the tlues and a ready escape is had of the smoke and gases from the fines to the smoke-stack without carrying cinders through the stack and at the same time a free exhaust of the steam from the engine is had without danger of back pressure.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

Figure 1 is a longitudinal sectional side elevation of the improvement on the line 1 1 of Fig. 2, and Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1.

In the shellA of the boiler are arranged in the usual manner flues B, terminating at their forward ends in a front liuesheet O, discharging the smoke and gases into a funnel-shaped conduit 1), arranged in a smoke-box E, supporting a smoke-stack F. The lower portion F of the smoke-stack F is extended a distance down into the smoke-box E, and the said lower portion has its lower end terminating in a contracted terminal F, into which extends the ex haust-nozzle G of the engine, a flange G on the said exhaust-nozzle closing the stack to the smoke-box. The bottom 1) of the conduit .l) extends upwardly and forwardly and connects with the lower portion F of the stack a distance immediately above the contracted terminal F and the rear top portion D of the conduit is formed by the rear top part of the l l l l l l l smoke-box, and the forward top portion D of the conduit 1) is formed by an enlargement of the stack, as will be readily understood by reference to Fig. 1.

By the arrangement described all the smoketlues B discharge the smoke and gases into the base end of the funnelshaped conduit 1), in which the smoke and gases travel upward and forward to linally pass into the smoke-stack F above the discharge end of the exhaustnozzle G. The entrance end of the funnelshaped conduit into the stack is about the same in diameter as that of the stack to insure a ready escape of the smoke and gases through the stack. 'hen the locomotive-engine is working, the exhaust-steam passing up the nozzle and stack creates a suction in the conduit 1) and in the smoke-fines B to insure a ready travel of the smoke and gases through the smokc-flues, the conduit, and the stack, together with the exhaust-steam passing axially up in the stack.

it will be seen that by the arrangement described the discharge end of the exhaust-nozzle G may be made of considerable size that is, somewhat larger than exhaust-nozzles heretofore used--and provided with a diaphragm. Thus a free escape of the exhauststeam is had, and consequently back pressure by the exhaust-steam is prevented. Furthermore, the exhaust-steam discharged into the stack F does not create a very strong draft in the smoke-Hues B, and consequently very few, if any, cinders are drawn through the smoketlues into the conduit. Cinders that are, however, drawn into the conduit are prevented from passing into the stack F by a transverse screen H, held in the base portion of the conduit, as plainly indicated in Fig. 1. From the bottom of the base end of the conduit 1) leads a pipe I for carrying off any cinders that may strike against the screen Hand then drop down into the lower end of the conduit D, from which they pass by the pipe 1 to a suitable place of discharge.

From the foregoing it will be seen that not only a free escape of the exhaust-steam and the steam and gases is had, but the device as described also serves as a spark-arrester to prevent sparks from passing out of the stack of the locomotive.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a locomotive-boiler and its smoke-box, of a stack extending into the smoke-box, an exhaust-nozzle connected with the lower end of the stack and forming therewith a continuous laterally-closed passage, and a conduit leading directly from the flue-sheet of the boiler into the side of the stack above the exhaust-nozzle.

2. The combination with alocomotive-boiler and its smoke-box, of a stack extending into the smoke-box, an exhaust-nozzle connected with the lower end of the stack, and a conduit surrounding the flue-openings of the boiler flue-sheet and opening into the side of the stack above the exhaust-nozzle.

3. The combination with a locomotive-boiler and its smoke-box, of a stack extending into the smoke-box, an exhaust-nozzle connected with and closing the lower end of the stack, a conduit leading directly from the flue-sheet of the boiler into the side of the stack above the exhaust-nozzle, and a screen situated across the conduit.

4. The combination with a locomotive-boiler and its smoke-box, of a stack extending into the smoke-box, an exhaust-nozzle connected with the lower end of the stack, and a conduit surrounding the flue-openings of the boiler flue-sheet and opening into the side of the stack above the exhaust-nozzle, the lower wall of the conduit being downwardly inclined and provided at its lower extremity with a discharge-opening.

5. The combination with a locomotive-boiler and its smoke-box, of a stack extending into the smoke-box, an exhaust-nozzle closing the lower end of the stack, and a conduit leading from the flue-sheet of the boiler into the side of the stack above the exhaust-nozzle.

6. The combination with a locomotive-boiler and its smoke-box, of a stack extending into the smoke-box and having a reduced lower end, an exhaust-nozzle closing said end of the stack, and a conduit leading from the fluesheet of the boiler into the side of the stack above the exhaust-nozzle. A

7. A locomotive-boiler having a smoke-box, a stack having its lower portion extending downward in the smoke-box, the lower terminal of the stack being contracted, an exhaustnozzle connected with the said stack-terminal, and a funnel-shaped conduit surrounding the flue-openings of the boiler and having its bottom extending upwardly and forwardly, the rear or base end of the conduit receiving the smoke and gases from the boiler-fines and the upper or apex end of the conduit opening into the stack above the contracted terminal there In testimony whereof I have signed my name to this specification in the presence of two subscribing wltnesses.

JOSEPH MUHR.

Witnesses:

JOHN D. GAsT, FRANK DOPHER.

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