US1556812A

US1556812A - Oil-burning-furnace front

Info

Publication number: US1556812A
Application number: US634574A
Authority: US
Inventors: William S Wilkinson
Original assignee: BETHLEHEM SHIPBUILDING CORP LT
Current assignee: BETHLEHEM SHIPBUILDING CORP LT; BETHLEHEM SHIPBUILDING Corp Ltd
Priority date: 1923-04-25
Filing date: 1923-04-25
Publication date: 1925-10-13
Anticipated expiration: 1942-10-13

Description

w. s. WILKINSQN OIL BURNING FURNACE FRONT Oct. 13, 1925.

2 Sheets-Sheet l med Aprn 2S, 1923 ww zfmgam abbot neg Oct. 13, l925- v w. s. WILKINSON 0.1L BURN-ING l FURNAGV'E FRONT Filed April '25, k192:, 2 sheets-shear 2 Senna,

Paemea 4`oa. 13, 1925.`

wILLIAn s' wrnxmson, or ELIZABETH, NEW JEEsEr, AssIeNoR To EETHLEHEH SHIRBUILDING CURPORATION, LTD., A, CORPORATION A02E DELAW o'IIfEUENINu-*EUENAcE EEoN'r.

Application led April 25, 1923. Serial No. $34,574.

To all 'whom t may concern:

- Be it known that I, WILLIAM S. WILKIN- soN, a citizen of the United States, and a resident of Elizabeth, Union County, and I State of New Jersey, have invented certain .new and useful Improvements in'Oil-Burm'- ing-Furnace Fronts, of which the following is la specification.

The present invention relates to oil burners for the front of oil burning furnaces.

InA Patent No. `LAHS-1,763 issued October 10,' 1922 to Thomas Service is disclosed an oil vburning furnace front, in which either forced or-natural draft maybe employed and which has a number of novel and important features rendering it of greater value, from a practical point of view, than furnace fronts f this type theretofore designed or constructed. The furnace front which comprises the subject matter of that patent includes a casing adapted to be directly secured to the boiler or furnace front having an air duct or conduit a novel arf rangement of vanes between which the air is admittedveither under natural draft or under forced draft to the atomized fuel, a novel valve construction for regulating the flow of air'through the air conduit provided, whereby the quantity of air fed may.

be positively and accurately controlled or k completely shut of if desired, a novel means and a vantageous features.

The present invention constitutesan improvement u on the burner disclosed in the patent mentloned and its principal objects are: first, to provide a front for an oil burning furnace which permits the use of either air under pressure from a forced draft'air duct,' or the utilization of air under atmospheric ,pressure only and taken -directly from the air -surroundlng the furnace instead of from the air duct, and second, to provide a front having a' novel construction wherebyV the operator is enabled-to swing the burner parts outwardly quickly an'd conveniently,

of inspection, cleaning and repair. This improved front is particularly useful in cases where it comprlses a unit in a batter of burners, 'all'of which are supplied wit air' under pressure from a common duct or common sourcef supply. The construction is such that the burner parts of one or more burners of the -.battery may be infor supporting the burner, andv other new4 or the purpose 'ing aperture in the lug 20 and normally spected, cleaned or repaired without cutting off` the forced`draft air supply to the other burners so that the furnace operation is uninterrupted. l, v 1

Other objects and advantages of the invention, will be apparent to one skilled in the art and it will be also obvious that changes may be made in the design and arrangement of the component elements Without departing from its spirit and scope.

In the drawing:

Figure 1- is a front elevation of the furnace front; T"

Figure 2 is a vertical" axial section through the same;

Figure 3 is a similar view with certain parts of the front illustrated in different posltions; l

Figure 4 shows the furnace front inperspectlve; and

Figure 5"is a detail view of a latchin device.

The spaced walls of the air duct for .forced draft are indicated at 10 and 11 ref A spectively, the outer wall 10 constituting the front of the furnace and the inner wall 11 lying adjacent the refractory furnace lining, which is not illustrated except in that a portion of the furnace ring 1s indicated at 12 in Figures 2 and 3. Secured between walls 10 and 11, and co-axial with the furnace ring, is the annular air direct, ing device, comprising spaced ring members 13 and valles 14, which is constructed and arran ed to direct tangential streams of air into t e burning space,"as clearly described in the patent previously referred to. A cylindrical or sleeve-lile valve member 15 slidably lits within rings 13 and is adapted to be axially adjusted in the operation of 'the burner to control the quantity of air liowing from the forced draft duct.

An annular frame indicated at 16 is hinge'd'at 17 to swing about a verticalaxis and is provided with a flange 18 diametrically opposite the hinge, which iange. is `notched at 19 to receive a lug or boss 20 extending outwardly from the outer ring 13. A latch pin'21 rests in a vertically extend- 106 holds the swinging frame 16 in the position illustrated in the drawings, with its inner edge in contact with the outer ring 13 of the vane supporting member. Extendin outwardly from the swinging frame an com- 110 prising a portion thereof, are arms 22 -to the outer ends of which is nbolted the cross- 'piece 23. This cross-piece has formed integrally therewith a' tubular member 24 extending axially of the furnace ring and which slidably supports a substantially diskshaped/member 25. The dgeof this disk member is adapted to seat against an annu lar shoulder 26 formed on the inner wall of cylindrical valve member 15.

Disk 25 may be locked member by means of latches 30 secured on the inner ends of spindles 31 rotatably supported in bearings in disk 25. To the 15 outer ends of these spindles are secured against the seatin operating handles 32 for rotatingthe same. The latches are designed to engage catches 33 formed as webs or flanges springing from the inner wall of member 15, ,theA .'20 mutually engaging faces of

latches

30 and 30 through which the flame may be watched.

Thesesight openings are normally closed by swinging plates 39.

The tubular member 24 slidablyreceives a cylinder 40 tothe inner end of which is 5 secured the slotted cone 41. The oil supply tube is indicated at 42 and it extends through tube 40, its inner end being held axially therein by a spider 43. `A11 oil atomizingdevice 44 is secured to the inner. end of the oil tube. To the outer end of the oil supply tube is connected the structure S which includes the control valve, straining devlcesz and lother features which will not f; be herein described in detail. The structure Sis supported by a bracket secured to the -member 24. g

When operating under forced draft, the disk 25 is seated on shbulder 26, as shown in Figure 2, and the disk and c lindrical sleeve valve 15 are adjusted axial ofthe burner as one unit inthe manner fillly described in the patent to Thomas Service before referred to, to admit more or less air to the burning space. If however it is desired to operate under natural draft, the

" latches 3o are manipulaaso that the disk and cylinder of the valve structure may be separated as shown in Figure 3, the cylihdrical portion 15 of the valve structure remaining in its innermost position and closin the annular outlet of the forced draft air uct, while the disk 25 is moved outwardly on the supporting tube 24 to the position s own in Figure 3 so that atmospheric air may freely flow into the furnace. To further increase theefectiveb ening, the` doors 37 -may-b-e lconstruction suchas disclosed in the drawings. A rod 50 arranged parallel to tube 24 has its inner end rigidly connected to-,dsk

25, and the toothed under lportion of lthis rod constitutes a rack meshing with a pinion 51 on a short shaft 52 co trolled by a hand wheel 53. Rotationof th hand wheel effects axial movement of therod and disk 25 and it. will beseen that this means. constitutes a common control means for the air su ply valves, whereby either thel amount o air flowing underforced draft to' the burner may be controlled, or the amount of 'air under` natural draft.

With the'disc and cylinder of the valve structure 'separatedl as shown in Figure 3` (the forced draft having been cut off lby means of the cylindrical portion 15),'the

removal of the' pin 21 will permit the swinging of the annular frame 16 about its hinge 17. The burner is then readily accessible lfor inspection or repair without interference to the forced draft air supply to other burners in the same battery.

Having thus described the invention what is claimed as Jnew and desired to be secured by Letters Patent is:

1. The combination with a furnace port` of an oil spray device adjacent tothe same,

outlet adj-acent to and coaxial with Ythe fura forced-draft air duct having an annular nace port, an open-ended tubular valve for "controlling the flow of air from said duct to the furnace port, a second valve .adapted to seat against the open end vof said tubular valve and movable toward and away therefrom for controlling the flow of atmospheric l air through said tubular valve to the-furnace port, means for securing the valves together, and means for moving the' second valve inwardly and outwardly. a

2. The combination with afurnace port of an oil spray adjacent the same,.a forced draft air duct havmg an annular outlet adjacent and coaxial with the 'furnace ort, an o en ended cylindrical valvelcontro lingl the ow of air from said duct to the furnace port, and a disk valve in rear of said cylindrical Valve for controlling the flow of latmos heric air through said cylindrical valve to t e furnace port, said disk valve being adapted to seat on said cylindrical valve.

3. The combination with a furnace port of an oil s rayladjacent the same, aforced draft air uct having. an annular outlet adjacent and `coaxial with the furnace port, an open ended cylindrical valve controlling the dow of air from said duct to .said furnaceJ I port', a disk valve in rear of said cylindrical pheric air through said cylindrical valve to the furnace port, and means for locking said disk valve to s'aid cylindrical valve.

4. The'combination with a furnace port of an oil spray adjacent the same, a forced draft air duct havin an annular outlet adjacent and coaxial with the furnace port, an open ended cylindrical valve controlling the flow of air from said duct tosaid furnace port, a disk valve in rear of said cylindrical valve for controlling the flow of `^atmospheri`c air through said cylindrical valve to the furnace port, and manually operable Alatch means for locking said disk valve to said cylindrical valve.

5. The combination with a furnace port of an oil spray adjacent the same, a forced i draft air duct having an annular outlet ad# surface on said cylindrical jacent and coaxial with the furnace port, an open ended c lindrical valve controlling the ow of air port, an annular rearwardly facing seating valve, and a disk valve iii rear of said cylindrical valve and adapted to seat on the annular seating surface of said cylindrical valve, said disk valve controlling the flow of atmospheric air through said cylindrical valve to the furnace port.

6. The combination with a furnace port of a forced-draft air duct having an outlet port adjacent to the furnace port, an air supply control means including a valve for controlling the flow of .air from said duct to said 'furnace port, a second valve. for controlling the flow of atmospheric air to said furnace port, a swinging frame for carrying the second valve,- and an oil atomizing device mounted on the swinging frame. A o

7. The combination with a furnace port of a forced draft air duct having an outlet port adjacent the furnace port, a valve for controlling said outlet ort,4 a swinging frame, an oil atomizing device mounted on the swinging frame, and a second valve mounted on the swinging frame for controlling the flow of., atmospheric air to the furnace port.- l

8. Theicombination with a furnace lport of'a forced-draft air duct having an annular outlet port adjacent and coaxial with they same, a cylindrical open ended valve controlling said port, an oil atomizing device, a second valve for controllingthe flow o f atmospheric air through the cylindricalvalve, and a Amovable frame upon which the second valve and atomizing device are mounted.

9. The combination with a furnace port of a forced draft air. duct havingan annular outlet port adjacent and coaxialwith' vthe same, a cylindricalopen ended valve conj valve.

om said duct to the furnace 11. lIn a fuel burner, the combination of o `ing an annular forced-dra signature.v v

` swiLKI'NSO trolling said port, `Ia hinged'ly mounted frame, an oil atomizing device mounted on this frame, a second valve adjustably mounted on the frame for controlling the flow of atmospheric air through the first valve, the frame being arranged to be swung laterally to permit adjustment and repair' of the -atomizer and other on the-frame for controlling t e flow of atmospheric air through thel cylindrical forced-draft air inlet means, a hollowl valve for controlling said inletmeans, a second valve cooperating with the hollow valve for controllin the admission of atmospheric air through t e hollow valve to the burner, means `for connectin and disconnecting the valves, and means or moving the second valve toward and from' the burner toadjust the hollow valve when the valves are'connected and to adjust the second valve with respect to the hollow valve when the valves are disconnected.`

12. In a fuelburner, the combination of spaced front and 'backrin members `delinair inlet, a hollow valve member ymovable within the ring members lto control the air inlet, a frame hinged with respect to the front ring member, a valve disc supported by the frame, means'A for moving the Avalve disc axially of the frame, and-means for connecting and disconnecting. thel valve disc with respect to the hollow valve member.

the. inlet, a frame, hinged to the front rin thereof, a disc valve slidable on the' tubular member for controlling the admission` of-atvh the tubular valve to y 115 connecting the tubular and the disc valves, and'mean's for moving the disc valve longitudinally of the tubular member. 1 Y

hereof I hereunto a mosheric air throu the y urner, means or connecting and dia-` In testimony size of 1 the annular air inlet, af' tu ular.. I

atubular-'member llo lGrried by" the frame and disposedaxially