US2127288A - Draft regulator - Google Patents
Draft regulator Download PDFInfo
- Publication number
- US2127288A US2127288A US175525A US17552537A US2127288A US 2127288 A US2127288 A US 2127288A US 175525 A US175525 A US 175525A US 17552537 A US17552537 A US 17552537A US 2127288 A US2127288 A US 2127288A
- Authority
- US
- United States
- Prior art keywords
- plate
- draft regulator
- smoke box
- draft
- box
- 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
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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
- F23L11/00—Arrangements of valves or dampers after the fire
- F23L11/02—Arrangements of valves or dampers after the fire for reducing draught by admission of air to flues
Definitions
- My invention relates to improvements in draft regulators for use on boilers, more particularly locomotive boilers.
- the invention is designed with the particular 5 purpose in view of providing a practical, inexpensive means of simple construction adapted to be readily attached to the smoke box of a locomotive for operation under the blast of the exhaust passing therethrough to break the pull, or lift, in the fire box incident to the rush of the exhaust through the smoke box, and thereby obviate undue suction in said fire box such as would tend to draw flames and sparks therefrom through the boiler fiues.
- FIG. 1 is a fragmentary view in vertical longitudinal section of a locomotive boiler having my improved draft regulator applied thereto,
- Figure 2 is a view in front elevation
- Figure 3 is a View in vertical transverse section taken on the line 3-3 of Figure 1 looking in the direction indicated by the arrows, and
- Figure 4 is a View in perspective of a bracket forming part of the device.
- my invention has been shown therein as applied to a locomotive boiler I including the usual flues 2, front flue plate 3, smoke box 4 having the front plate 5, smoke stack 6 and the usual exhaust pipe 1 leading from the cylinders, not shown, into the smoke box 4.
- a circular aperture 8, of any suitable size is provided in the front plate 5 axially thereof and for the admission of atmospheric air into the fire box 4.
- a U-shaped bracket 9, of right angles form and of suitable metal, and comprising a breast bar I and right angled legs I I is secured to the plate in upright position, in the center of the aperture 8, by means of bolts I2 extending through said legs and plates and having nuts I3 threaded on to the ends thereof.
- the guide rods I4 and I5 are each provided on their inner ends with a head I'I. slidably mounted on the guide rods I4 and I5, on the inner side of the aperture 8, is a circular closure plate l8 of sufficient diameter to close said aperture.
- the plate I8 has formed thereon guide sleeves I9 through which the rods I4 and I5 extend and which prevent said plate from binding on said rods.
- the plate I8 is yieldingly urged
- the device described forms a valve in which the closure plate I8 is the valve member tensioned by the spring 20 to seat against the front plate 5 and close the valve opening 8 and so that when the exhaust steam blasts through the smoke box 4 the .suction created therein by the blast will pull the plate I8, or valve member, into opening position in opposition to the spring 20 and admit air to the smoke box 4.
- the air thus admitted to the smoke box 4 will break the suction created in the fire box, by way of the lines 2, under such action of the exhaust steam, and thereby obviate the discharge of sparks from the smoke stack 6 also the formation of holes in the fire bed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
Aug. 16, 1938. T. J. coLlHAN 2,127,238
\ DRAFT REGULATOR Filed Nov 19, 1957 2 Sheets-Sheet 1 By l M 5m Attorneys J3 Inventor Aug. 16, 1938. J U AN 2,127,288
DRAFT REGULATOR Filed Nov. 19, 1957 2 Sheets-Sheet 2 Inventor Attorneys Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE 1 Claim.
My invention relates to improvements in draft regulators for use on boilers, more particularly locomotive boilers.
The invention is designed with the particular 5 purpose in view of providing a practical, inexpensive means of simple construction adapted to be readily attached to the smoke box of a locomotive for operation under the blast of the exhaust passing therethrough to break the pull, or lift, in the fire box incident to the rush of the exhaust through the smoke box, and thereby obviate undue suction in said fire box such as would tend to draw flames and sparks therefrom through the boiler fiues.
To the accomplishment of the above, and subordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in the accompanying drawings, set forth in detail in the succeeding description, and defined in the claim appended hereto.
In said drawings- Figure 1 is a fragmentary view in vertical longitudinal section of a locomotive boiler having my improved draft regulator applied thereto,
Figure 2 is a view in front elevation,
Figure 3 is a View in vertical transverse section taken on the line 3-3 of Figure 1 looking in the direction indicated by the arrows, and
Figure 4 is a View in perspective of a bracket forming part of the device.
Referring to the drawings by numerals, my invention has been shown therein as applied to a locomotive boiler I including the usual flues 2, front flue plate 3, smoke box 4 having the front plate 5, smoke stack 6 and the usual exhaust pipe 1 leading from the cylinders, not shown, into the smoke box 4.
According to my invention, a circular aperture 8, of any suitable size, is provided in the front plate 5 axially thereof and for the admission of atmospheric air into the fire box 4. A U-shaped bracket 9, of right angles form and of suitable metal, and comprising a breast bar I and right angled legs I I is secured to the plate in upright position, in the center of the aperture 8, by means of bolts I2 extending through said legs and plates and having nuts I3 threaded on to the ends thereof. Extending inwardly, equidistantly from the breast bar Ill through said aperture 8 and into the smoke box 4, for a suitable distance, is a pair of upper and lower, horizontally disposed guide rods I4 and I5, each secured at its front end in said breast bar ID by means of a pair of nuts I6 threaded thereon upon opposite sides of said bar II] respectively. The guide rods I4 and I5 are each provided on their inner ends with a head I'I. slidably mounted on the guide rods I4 and I5, on the inner side of the aperture 8, is a circular closure plate l8 of sufficient diameter to close said aperture.
Preferably the plate I8 has formed thereon guide sleeves I9 through which the rods I4 and I5 extend and which prevent said plate from binding on said rods.
The plate I8 is yieldingly urged As will now be seen the device described forms a valve in which the closure plate I8 is the valve member tensioned by the spring 20 to seat against the front plate 5 and close the valve opening 8 and so that when the exhaust steam blasts through the smoke box 4 the .suction created therein by the blast will pull the plate I8, or valve member, into opening position in opposition to the spring 20 and admit air to the smoke box 4. As will be understood the air thus admitted to the smoke box 4 will break the suction created in the fire box, by way of the lines 2, under such action of the exhaust steam, and thereby obviate the discharge of sparks from the smoke stack 6 also the formation of holes in the fire bed. The heads IT on the rods I4 and I5, as will be manifest, establish the limit of opening movement of the plate I8, or valve member, as shown by dotted lines in Figure 1.
The invention will,
it is believed, be readily understood from the foregoing without further explanation.
Manifestly, modifications in structural features described may be resorted to without departing from the inventive concept and right is herein reserved toall such modifications falling within the scope of the subjoined claim.
What I claim is:
A draft regulator for use on a boiler smoke box of the type having a draft opening therein, said regulator comprising a U -shaped bracket from closing relation.
THOMAS J. COLIHAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US175525A US2127288A (en) | 1937-11-19 | 1937-11-19 | Draft regulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US175525A US2127288A (en) | 1937-11-19 | 1937-11-19 | Draft regulator |
Publications (1)
Publication Number | Publication Date |
---|---|
US2127288A true US2127288A (en) | 1938-08-16 |
Family
ID=22640565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US175525A Expired - Lifetime US2127288A (en) | 1937-11-19 | 1937-11-19 | Draft regulator |
Country Status (1)
Country | Link |
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US (1) | US2127288A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2473804A (en) * | 1947-06-05 | 1949-06-21 | Arthur T Ledoux | Draft control for oil burners |
US2594868A (en) * | 1952-04-29 | Milk boiler with safety lid |
-
1937
- 1937-11-19 US US175525A patent/US2127288A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594868A (en) * | 1952-04-29 | Milk boiler with safety lid | ||
US2473804A (en) * | 1947-06-05 | 1949-06-21 | Arthur T Ledoux | Draft control for oil burners |
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