US792318A - Air-draft for locomotives. - Google Patents

Air-draft for locomotives. Download PDF

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Publication number
US792318A
US792318A US22229004A US1904222290A US792318A US 792318 A US792318 A US 792318A US 22229004 A US22229004 A US 22229004A US 1904222290 A US1904222290 A US 1904222290A US 792318 A US792318 A US 792318A
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air
draft
tubes
locomotives
fire
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US22229004A
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Rupert F Cox
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel

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  • My invention relates to improvements in air-drafts for locomotive-boilers; and the objects of my invention are to provide a means for supplying the furnace with air of sufficicnt quantity to make a perfect draft and to obviate the necessity of using a heavy exhaust, which is now common in locomotives.
  • Figure 1 is a side elevation of a locomotiveengine, showing the position in which I place the air-draft tubes.
  • Fig. 2 is an enlarged front View of boiler, showing the fire-box in section to show the position in which I place the air-draft tubes under the grate-bars.
  • Fig. 3 is a longitudinal sectional view of fire-box, showing the ends of the air-draft tubes.
  • Fig. 4 is a top view of boiler and air-draft tubes to show more fully the arrangement of the same.
  • the letter A designates a locomotive-boiler which is of general construction and now in general use.
  • Secured upon each side of the boiler and under the foot-rail B are the air-draft tubes C C.
  • the front ends D D of the tubes C C are bell-mouthed and curved to conform to the diameter of the boiler, the portions C C being round and extending longitudinally with the boiler.
  • the said tubes extend downward on an incline E to a line with the under side of the grate-bars F, thence at right angles across the fire-box ash-pit.
  • the upper walls of the said tubes are provided with perforations G to allow the air to pass through the LOCOMOTIVES.
  • a tube I may be connected with the tube E to enter the fire-box above the fire. Said tube is perforated to aid in the combustion of fuel in the furnace.
  • Fig. 3 I show the front of the ash-pit made to open.
  • the door J is hinged upon its upper edge and may be operated from the cab by link 1, lever 2, and rod 3, as will be understood.
  • Dampers 0 may be placed within the air-tubes C and operated to reduce the amount of air-current when necessary.
  • a locomotive-boiler In combination with a locomotive-boiler a plurality of air-tubes having funnel-shaped mouths at their front ends and extended to the fire-box where they enter above and below the grate-bars, said tubes being perforated within the li re-box to discharge air above and below the fire, dampers located in said air-tubes, and the front of the ash-pit hinged and the draft therein controlled from the cab of the locomotive by link 1, lever 2, and rod 3, all combined substantially as described.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Description

PATENTED JUNE 13, 1905.
R. F. COX.
AIR DRAFT FOR LOCOMOTIVES.
APPLICATION FILED AUG. 26, 1904.
CL WW.
UNITED STATES Patented June 13, 1905.
PATENT OFFICE.
RUPERT F. COX, OF MANSFIELD, OHIO.
AIR-DRAFT FOR To all whom, it may concern.-
Be it known that I, RUPERT F. Cox, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Air-Drafts for Locomotives, of which the following is a specification, reference being had therein to the accompanying drawings.
My invention relates to improvements in air-drafts for locomotive-boilers; and the objects of my invention are to provide a means for supplying the furnace with air of sufficicnt quantity to make a perfect draft and to obviate the necessity of using a heavy exhaust, which is now common in locomotives. These objects I accomplish by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a locomotiveengine, showing the position in which I place the air-draft tubes. Fig. 2 is an enlarged front View of boiler, showing the fire-box in section to show the position in which I place the air-draft tubes under the grate-bars. Fig. 3 is a longitudinal sectional view of fire-box, showing the ends of the air-draft tubes. Fig. 4: is a top view of boiler and air-draft tubes to show more fully the arrangement of the same.
Similar characters of reference indicate the several parts throughout the views.
In the accompanying drawings the letter A designates a locomotive-boiler which is of general construction and now in general use. Secured upon each side of the boiler and under the foot-rail B are the air-draft tubes C C. The front ends D D of the tubes C C are bell-mouthed and curved to conform to the diameter of the boiler, the portions C C being round and extending longitudinally with the boiler. The said tubes extend downward on an incline E to a line with the under side of the grate-bars F, thence at right angles across the fire-box ash-pit. The upper walls of the said tubes are provided with perforations G to allow the air to pass through the LOCOMOTIVES.
Patent No. 792,318, dated June 13, 1905.
1904. Serial No. 222,290.
openings H between the grate-bars F. A tube I may be connected with the tube E to enter the fire-box above the fire. Said tube is perforated to aid in the combustion of fuel in the furnace.
The construction and arrangement of the parts are fully illustrated and described.
In Fig. 3 I show the front of the ash-pit made to open. The door J is hinged upon its upper edge and may be operated from the cab by link 1, lever 2, and rod 3, as will be understood. Dampers 0 may be placed within the air-tubes C and operated to reduce the amount of air-current when necessary.
It will be readily seen by those skilled in the art that when the engine is in motion the air will pass into the bell-mouth tubes D, thence through the pipes C and E, and through the perforations G, which will give all neces sary draft to the fire, obviating the necessity of having heavy exhaust from the cylinders. It will also be seen that the velocity as it increases gives more air-pressure.
I do not wish to limit myself to the number of tubes passing under or over the gratebars, as any number can be used.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is
In combination with a locomotive-boiler a plurality of air-tubes having funnel-shaped mouths at their front ends and extended to the fire-box where they enter above and below the grate-bars, said tubes being perforated within the li re-box to discharge air above and below the fire, dampers located in said air-tubes, and the front of the ash-pit hinged and the draft therein controlled from the cab of the locomotive by link 1, lever 2, and rod 3, all combined substantially as described.
In testimony whereof I affix my signature in presence of two witnesses.
RUPERT F. COX.
Witnesses:
T. Y. MoCRAY,
F. M. BUSHNELL.
US22229004A 1904-08-26 1904-08-26 Air-draft for locomotives. Expired - Lifetime US792318A (en)

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