US142482A - Improvement in blast and cupola furnaces - Google Patents
Improvement in blast and cupola furnaces Download PDFInfo
- Publication number
- US142482A US142482A US142482DA US142482A US 142482 A US142482 A US 142482A US 142482D A US142482D A US 142482DA US 142482 A US142482 A US 142482A
- Authority
- US
- United States
- Prior art keywords
- blast
- disk
- improvement
- furnace
- cupola
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000000414 obstructive Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001603 reducing Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L13/00—Construction of valves or dampers for controlling air supply or draught
Definitions
- My invention relates to a mode of increasing the reducing effect of fuel in a cupola or furnace; and consists of improved devices whereby the upper portion of the furnace may be obstructed, so as to reduce the opening for the escape of the products of combustion to about the area of the blast-openings.
- the diameter of the disk A is such, compared with that of the interior ofr the upper portionor chimney B of the furnace,that the l annular space between the two is about equal in area to that of the blast-pipes.
- this disk should be elevated above the feedhole a, and should occupy such a position as to present the least possible obstruction to the volumes of smoke and gases which emanate from the fuel; hence, the disk is snspended to a rod passing through a guide, e, fixed in the chimney, the rod being attached to a chain passing over pulleys to any suitable raising and lowering mechanism. 0n raising the disk from the position shown by dotted lines its flange will catch the outer end of an arm, m,hung to the inside of the chimney,
- the arm will be gradually raised to a horizontal position, and the disk will gradually assume the vertical position shown, so as to presentthe least obstruction to the escaping products of combustion.
- the disk After charging, the disk may be lowered, as indicated by dotted lines, and retained in a horizontal position at the desired height, the arm falling with the disk.
- the disk A arranged in a furnace, and adjustable, so as to be secured in either a horizontal or a vertical position, as specified.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
F. LAWRENCE.`
` Blast'and Cupola Furnaces.
N0.r 142,482. Patented Septe'mberZJSS.
UNITEDl STATES PATENT OFFICE.
vFRANKLIN LAWRENCE, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN BLAST AND CUPOLA FURNACES.
Specification forming part of Letters Patent No. 142,482, dated September 2, 1873; application filed l July 2, 1873.
To'all whom t may concern:
-Be it known that I, FRANKLIN LAWRENCE, of Philadelphia, Pennsylvania, have invented an Improved Cupola or Furnace, of which the following is a specification:
My invention relates to a mode of increasing the reducing effect of fuel in a cupola or furnace; and consists of improved devices whereby the upper portion of the furnace may be obstructed, so as to reduce the opening for the escape of the products of combustion to about the area of the blast-openings.
The devices which I employ are illustrated in the accompanying drawing, which represents a vertical section of the upper portion ot' a furnace or cupola, in which is suspended a disk, A.
The diameter of the disk A is such, compared with that of the interior ofr the upper portionor chimney B of the furnace,that the l annular space between the two is about equal in area to that of the blast-pipes. When the furnace has to be fed, however, it is necessary that this disk should be elevated above the feedhole a, and should occupy such a position as to present the least possible obstruction to the volumes of smoke and gases which emanate from the fuel; hence, the disk is snspended to a rod passing through a guide, e, fixed in the chimney, the rod being attached to a chain passing over pulleys to any suitable raising and lowering mechanism. 0n raising the disk from the position shown by dotted lines its flange will catch the outer end of an arm, m,hung to the inside of the chimney,
and on continuing to elevate the disk the arm will be gradually raised to a horizontal position, and the disk will gradually assume the vertical position shown, so as to presentthe least obstruction to the escaping products of combustion.
After charging, the disk may be lowered, as indicated by dotted lines, and retained in a horizontal position at the desired height, the arm falling with the disk.
I claim as my invention- 1. The disk A, arranged in a furnace, and adjustable, so as to be secured in either a horizontal or a vertical position, as specified.
2. The combination of the ilanged disk A and its guided rod f withthe arm m hung to the interior of the chimney, all substantially as set forth. i
In testimony whereof `I have signed my name to this specification in the presence of two subscribing witnesses.
FRANKLIN LAWRENCE.
Witnesses:
HUBERT HoWsoN, HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US142482A true US142482A (en) | 1873-09-02 |
Family
ID=2211895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US142482D Expired - Lifetime US142482A (en) | Improvement in blast and cupola furnaces |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US142482A (en) |
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0
- US US142482D patent/US142482A/en not_active Expired - Lifetime
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