US1289262A - Furnace-arch. - Google Patents

Furnace-arch. Download PDF

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Publication number
US1289262A
US1289262A US21432318A US21432318A US1289262A US 1289262 A US1289262 A US 1289262A US 21432318 A US21432318 A US 21432318A US 21432318 A US21432318 A US 21432318A US 1289262 A US1289262 A US 1289262A
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Prior art keywords
arch
furnace
bars
door
blocks
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US21432318A
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William D Ranny
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/06—Crowns or roofs for combustion chambers

Definitions

  • This invention relating to furnaces has for its object to provide an improved construction of fire box arch of simple and economical construction that can be erected without the aid of expert workmen.
  • arches are hand sprung, that is they are built of fire brick over a specially erected form.
  • the expansion and contraction of a hand sprung arch over a furnace fire and the end thrust due to the weight of the arch on the side Walls has a tendency to cause it to fall and shortens the life of the arch, thereby necessitating a rebuilding or removal of the entire arch and side walls.
  • the present invention obviates these troubles and provides an arch which can be economically and easily repaired by replacing any of its parts.
  • Figure 1 is mainly a vertical longitudinal section of a boiler furnace equipped with my invention.
  • Fig. 2 is a structure.
  • Fig.v 3 is a front elevation of the arch structure as viewed from the left hand side of Fig. 2.
  • Fig. 4 is a perspective view of one of the blocks used in the arch structure.
  • the character 7 designates the opening through which fuel is supplied to the fire box, said opening being provided with the usual door 8. Supported between the door arch and the ordinary bridge wall 9 is a top plan view of the arch Copies of this patent may be obtained for Specification of Letters Patent.
  • the ash pit 10 to which access is had through an opening in the door arch provided with a door 10
  • the grate I provide an arch including a frame consisting of a series of bars 11 resting as shown, removably at their upper ends upon a plate 12 inserted in the crown of the door arch and at their lower ends removably as shown upon a cross bar 13, supported at its opposite ends in the side walls of the furnace.
  • bars 11 are arranged parallel to each other and should have a dip rearward of about fifteen degrees from the horizontal.
  • the lower ends of said bars are bifurcate to straddle the cross bar 13.
  • blocks 14 which have end lips 14E to rest on the upper edges of the adjacent bars 11.
  • These blocks are made of such dimensions as to be easily handled but so as to practically fill the frame made up of the bars 11 by use of blocks of uniform dimensions.
  • These blocks are made of fire clay or other refractory material or compound adapted to withstand a high temperature. It will be observed that this arch can be taken down and repaired or replaced in any of its parts without destruction of the door arch or side walls.
  • a plurality of parallel bars extending rearwardly in the fire box, each of said bars resting removably at its forward end upon the crown of the door arch and having its rear end bifurcate, a bar supported between the side walls of the fire box and receiving and supporting the bifurcate ends of said parallel bars, and blocks of refractory material having lips resting removably upon said parallel bars to support the blocks between them.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Special Wing (AREA)

Description

W. D. RANNEY.
FURNACEARCH.
APPLICATION FILED JAN-29, 1918.
1,289,262. Patented Dec. 31,1918.
WILLIAM D. RANNEY, OF COLUMBUS, OHIO.
FURNACE-ARCH.
Application filed January 29, 1918.
To all whom it may concern Be it known that I, WILLIAM D. RANNEY, a citizen of the United States, residing at Columbus, in the county f Franklin and State of Ohio, have invented a certain new and useful Improvement in Furnace-Arches, of which the following is a specification.
This invention relating to furnaces has for its object to provide an improved construction of fire box arch of simple and economical construction that can be erected without the aid of expert workmen. As now generally used such arches are hand sprung, that is they are built of fire brick over a specially erected form.
The expansion and contraction of a hand sprung arch over a furnace fire and the end thrust due to the weight of the arch on the side Walls has a tendency to cause it to fall and shortens the life of the arch, thereby necessitating a rebuilding or removal of the entire arch and side walls. The present invention obviates these troubles and provides an arch which can be economically and easily repaired by replacing any of its parts.
The invention is embodied in the construction shown in the accompanying drawing and set forth in the following description, the features of novelty being finally claimed.
In said drawings- Figure 1 is mainly a vertical longitudinal section of a boiler furnace equipped with my invention.
Fig. 2 is a structure.
Fig.v 3 is a front elevation of the arch structure as viewed from the left hand side of Fig. 2.
Fig. 4: is a perspective view of one of the blocks used in the arch structure.
In the views 5 designates the side walls of the furnace between which is supported an ordinary boiler 6.
The character 7 designates the opening through which fuel is supplied to the fire box, said opening being provided with the usual door 8. Supported between the door arch and the ordinary bridge wall 9 is a top plan view of the arch Copies of this patent may be obtained for Specification of Letters Patent.
five cents each,
Patented Dec. 31, 1918.
Serial No. 214,323.
grate of any suitable construction but preferably of the shaking variety inclined to about fifteen degrees rearward. Below the grate is the ash pit 10 to which access is had through an opening in the door arch provided with a door 10 In the fire box above the grate I provide an arch including a frame consisting of a series of bars 11 resting as shown, removably at their upper ends upon a plate 12 inserted in the crown of the door arch and at their lower ends removably as shown upon a cross bar 13, supported at its opposite ends in the side walls of the furnace. The
bars 11 are arranged parallel to each other and should have a dip rearward of about fifteen degrees from the horizontal. The lower ends of said bars are bifurcate to straddle the cross bar 13. Removably supported upon and between the bars 11 are blocks 14 which have end lips 14E to rest on the upper edges of the adjacent bars 11. These blocks are made of such dimensions as to be easily handled but so as to practically fill the frame made up of the bars 11 by use of blocks of uniform dimensions. These blocks are made of fire clay or other refractory material or compound adapted to withstand a high temperature. It will be observed that this arch can be taken down and repaired or replaced in any of its parts without destruction of the door arch or side walls.
Changes can be made in the forms and sizes of the parts ithout departing from the gist of the invention as claimed.
What I claim is:
In combination with the fire box and door arch of a boiler furnace, a plurality of parallel bars extending rearwardly in the fire box, each of said bars resting removably at its forward end upon the crown of the door arch and having its rear end bifurcate, a bar supported between the side walls of the fire box and receiving and supporting the bifurcate ends of said parallel bars, and blocks of refractory material having lips resting removably upon said parallel bars to support the blocks between them.
WILLIAM D. RANNEY.
by addressing the "Commissioner of Patents,
Washington, D. 0.
US21432318A 1918-01-29 1918-01-29 Furnace-arch. Expired - Lifetime US1289262A (en)

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US21432318A US1289262A (en) 1918-01-29 1918-01-29 Furnace-arch.

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US21432318A US1289262A (en) 1918-01-29 1918-01-29 Furnace-arch.

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US1289262A true US1289262A (en) 1918-12-31

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