US2030825A - Draft control - Google Patents
Draft control Download PDFInfo
- Publication number
- US2030825A US2030825A US655366A US65536633A US2030825A US 2030825 A US2030825 A US 2030825A US 655366 A US655366 A US 655366A US 65536633 A US65536633 A US 65536633A US 2030825 A US2030825 A US 2030825A
- Authority
- US
- United States
- Prior art keywords
- draft
- lower section
- section
- air
- flue
- 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
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
Definitions
- the present invention is an improved drai'tcontrol and relates to a unit, for insertion in a pipe leading from a heater to a flue or header, for the p pose of regulating the amount of draft.
- the objects of the invention include:-'I'he pro-' vision, in a device of the character disclosed, of
- means for regulating thevelocity of draft by admitting to said pipe air from the surrounding atmosphere and means for regulating the amount of air so admitted to adjust the degree of effective capacity of the pipe which conducts the products of combustion from a heater to a header or built-' The provision of a which adjustment 'can be made to stimulate a weak draft and thereby insure better combustion.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Description
Feb. 11, 1936. PEMBRQKE 2,030,825
DRAFT CONTROL Filed Feb. 6, 1933 Patented. F b. 11, rose,
UNITED STATES,
PATENT OFFICE nnar'r common George F. Pembroke, Los Angeies, Calif. Application February e, 1933, Serial No. 655,366 1 some. (Cl. 126-307) The present invention is an improved drai'tcontrol and relates to a unit, for insertion in a pipe leading from a heater to a flue or header, for the p pose of regulating the amount of draft.
The objects of the invention include:-'I'he pro-' vision, in a device of the character disclosed, of
, means for regulating thevelocity of draft by admitting to said pipe air from the surrounding atmosphere and means for regulating the amount of air so admitted to adjust the degree of effective capacity of the pipe which conducts the products of combustion from a heater to a header or built-' The provision of a which adjustment 'can be made to stimulate a weak draft and thereby insure better combustion.
The provision of means for diminishing the effect of too strong a draft without restricting, mechaniacally, the cross-sectional area of the conductor pipe.
My invention is particularly adaptable to use in} connection with gas heaters, water heaters, furnaces, and the like where such devices are installed in close quarters and where it is desirable to withdraw from the room in which they operate, foul air, obnoxious fumes, and carbon monoxide.
Other objects and advantages will become apparent as this description proceeds.
In the accompanying drawing Figure 1 is a sideelevation of my device.
Figure 2 is a vertical cross section of Figure 1.
Figure 3 is a section of Figure 1 taken on the line III-III of said figure.
Figure 4 is a diagrammatic view showing my invention installed between a heater and a flue or header and showing its adaptabiltiy in horizontal, vertical and oblique positions;
Figure 5 is a view similar to Figure 2, on a reduced scale, showing an interchangeable member in relation to the main structure;
Figure 6 is an end view-of a sleeve member shown in Figure 5;
Figure 7 is a front view of a metal strip formed and perforated;
Figure 8 is a section of Figure 7 taken on the 2 line VIII-N111 of said figure; and
Figure'9 is a fragmentary view of a baflie and illustrates the manner in which it is cut away to cooperate with the members shown in Figures 7 and 8.
Referring to the drawing, Figure 4, the numeral I indicates a header or flue with which pipes 2 are connected to carry off the products .vertical, horizontal 0 draft control by means of of combustion from heaters, represented diagrammatically at I.
Interposed in the pipe lines 2 (which may be oblique) I show my invention, indicated in its entirety within the 5 bracket A.
The invention comprises an assembled unit shown in Figures 1 and 2, the opposite ends of which are made adaptable to pipe connection by crimping'one end and flaring the other in a wellknown manner. In the preferred form of my invention, shown in the drawing, the device is made of sheet metal and comprises a pair of tubular concentric members 6 and I.
A bell-shaped reducer 8 is secured to that end 15 of member 1 adjacent the header I. The smaller end 8a of reducer 8 is of substantially the same diameter as that of the member 6, to connect with the pipe 2.
The purpose of this baffle is to direct any down draft or surge of air from header I into the an- 40 nuiar passage B between the 1' thereby the heater Baille I2 is formed of two conical sheet metal members, each provided with a horizontally disposed flange I3 which are welded or otherwise joined to keep the members in alignment. When so joined, the flang is cut away, as indicated in Figure 9, to form fingers I3a which travel in grooves II of the straps 9 and can be engaged in holes I4 through the bottom of said grooves.
This structure provides a means for predetermining the position of baiile I2 relative to members 6 and I.
The member 1 is flared at the end remote from members 6 and prevent blowing out a pilot light in the reducer l as indicated at ll. In order to refl late the effective capacity of the annular air passage B, I Y rounds, and is slidable on, the member 0. Said sleeve ll carries a skirt I0, which serves as a closure for air passage B when said skirt contacts the flared portion 16 oi member I.
In some cases civic regulations demand that complete closure oi this passage be made impossible. Thereiore I provide a stop in the shape of a button-headrivet I! which extends outwardly through the wall oi member 6 to obstruct the movement oi closure I! at the position indicated on dotted lines, Figure 2. Movement oi said closure in the opposite direction is limited by a crimp orgbead 2| in the member 6.
In certain installations where the draft is known to be weak, this sleeve is not used and the baflle l2 may also be dispensedwith. In such cases I prefer to employ a short length oi cylindrical tubing 26, in the place oi the sleeve 23, and said member 26 is provided with studs 21 which travel in grooves H oi the straps 9 and engage the holes H as shown in Figure 15. This structure provides means for positioning the tube 26 relative to members 6 and I, and to air chamber B.
It will be seen that I have provided a draft control whereby surrounding atmosphere can be introduced in a heater service pipe, and whereby the amount of air so admitted can be regulated in volume to accommodate the device to various con ditions of draft.
Incidentally, the device efiects a better ventilation within the room in which it is installed by carrying off monoxide gas, fumes, and stagnant products of combustion.
My draft control is particularly serviceable in connection with water heaters and eflects an economy in full, due to the fact that the draft of cold air enters the pipe 2 at a point between the heater 4 and the header l. Cool air is thus prevented from contacting the heated water coil and unnecessarily dissipating heat stored therein.
It will be understood that where, in my claims, I refer to upper" or lower flue sections this is done merely for relating the parts and is not to be construed as limiting the invention to a vertical disposition of those sections.
provide a sleeve member I! which sur- I claim: I 1. In a device oi the character described, a pair oi axially alined upper and lower cylindrical flue sections having their opposed .ends spaced apart, a jacket having a portion about and annularly spaced irom the lower section and extending downwardly irom the upper end thereoi,
and having another portion extending irom the first mentioned portions oi the lower end oi the upper section, a transverse battle in the space between the section ends, said vbailie being in axial alinement with and oi no greater diameter than the lower section and being supported with its marginal edge spaced irom the opposed ends oi the sections, the lower section and the lower end oi the jacket defining an annular intake opening, and means for regulating the eiiective size oi said opening, said means embodying a sleeveslidable on the lower section and having an upwardly converging. conical flange underlying the annular space between the lower section spaced from the upper end oi the lower section,
and anupwardly converging conical member disposed in vertical alinement with and adapted to direct air angularly into the annular space between the jacket and the lower section at a point below said upper end oi the lower section.
3. In a device oi the character described, a pair oi cylindrical axially alined upper and lower flue sections having their opposed ends spaced apart, a jacket having a cylindrical portion about and annularly spaced from the lower section and extending downwardly from the upper end thereoi and having another portion extending irom the first mentioned portion to the lower end oi the upper section, said jacket being annularly spaced from the upper end of the lower section, and an upwardly converging. conical member disposed in vertical alinement with and adapted to direct air angularly into the annular space between the jacket and the lower section at a point below said upper end oi the lower section, said conical member being mounted on the lower section and movable longitudinally therealong toward and away from the lower end of said jacket.
GEORGE F. PEMBROKE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US655366A US2030825A (en) | 1933-02-06 | 1933-02-06 | Draft control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US655366A US2030825A (en) | 1933-02-06 | 1933-02-06 | Draft control |
Publications (1)
Publication Number | Publication Date |
---|---|
US2030825A true US2030825A (en) | 1936-02-11 |
Family
ID=24628600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US655366A Expired - Lifetime US2030825A (en) | 1933-02-06 | 1933-02-06 | Draft control |
Country Status (1)
Country | Link |
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US (1) | US2030825A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2561135A (en) * | 1946-06-03 | 1951-07-17 | Perfection Stove Co | Mechanically driven impeller type draft inducer for combustion apparatus |
US2604887A (en) * | 1952-07-29 | Draft control for heating | ||
US2660998A (en) * | 1949-03-19 | 1953-12-01 | Rheem Mfg Co | Downdraft diverter |
US3118438A (en) * | 1961-07-24 | 1964-01-21 | Aerometric Furnace Control Inc | Adjustable draft regulator |
US4397225A (en) * | 1981-06-25 | 1983-08-09 | Perform, Inc. | Stack draft stabilizing device |
US4580548A (en) * | 1984-12-06 | 1986-04-08 | Teledyne Industries, Inc. | Gas-fired heater vent system |
GB2531547A (en) * | 2014-10-21 | 2016-04-27 | A1 Sheet Metal Flues Ltd | Flue system |
US10406950B2 (en) * | 2015-07-21 | 2019-09-10 | Gentherm Automotive Systems (China) Ltd. | Connector for a climate controlled support device |
-
1933
- 1933-02-06 US US655366A patent/US2030825A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604887A (en) * | 1952-07-29 | Draft control for heating | ||
US2561135A (en) * | 1946-06-03 | 1951-07-17 | Perfection Stove Co | Mechanically driven impeller type draft inducer for combustion apparatus |
US2660998A (en) * | 1949-03-19 | 1953-12-01 | Rheem Mfg Co | Downdraft diverter |
US3118438A (en) * | 1961-07-24 | 1964-01-21 | Aerometric Furnace Control Inc | Adjustable draft regulator |
US4397225A (en) * | 1981-06-25 | 1983-08-09 | Perform, Inc. | Stack draft stabilizing device |
US4580548A (en) * | 1984-12-06 | 1986-04-08 | Teledyne Industries, Inc. | Gas-fired heater vent system |
GB2531547A (en) * | 2014-10-21 | 2016-04-27 | A1 Sheet Metal Flues Ltd | Flue system |
US10406950B2 (en) * | 2015-07-21 | 2019-09-10 | Gentherm Automotive Systems (China) Ltd. | Connector for a climate controlled support device |
US10967767B2 (en) | 2015-07-21 | 2021-04-06 | Gentherm Automotive Systems (China) Ltd. | Connector for a climate controlled support device |
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