USRE20982E - X o oil burner - Google Patents

Description

Jan. 24, 1939. w L N E Re, 20,982

OIL BURNER Original Filed June 19, 1931 2 Sheets-Sheet l Reissuea Jan. 24, 1939 UNITED STATES PATENT OFFICE OIL BUBNER Berber-t w. Alden and Milion A. Powers, neu-on,

Mish., aignor, by meme assignments, to Timke-Detroit Axle Company, a corporation oi' Ohio zcm.

Our invention relates to oil burners oi the type having a rotary head disposed centrally of a hearth and spraying oil to the outer periphery o! the hearth where combustion takes place. The s invention has for its principal objects to make ali and removable and easily accessible for purposes oi inspection and repair, to provide a better spray oi iuei. to simpiiiy the construction and lessen u the cost thereof and to make the device small and compact. The invention consists in the oil burner and in the -parts and combinations -and arrangements of parts hereinater described and In the accompanying drawings.' figure 1 isatop plan view of an oil burner embodying our invention. Figure 2 is a part elevation, part vertical sectional view thei-eat, n mureaisaverticalsectionalviewoitheupper portion oi the burner Figure4isasectionalviewontheline4-4oi l 'lgure 2,

Flgureisasectionai viewonthelineS-Io nguro 2.

FigureisasectionalviewontheineI-lot Figura 2, and mgure'lisasectionalviewontheline'l-l figure 1.- i

The main supporting !rame oi the burner construction comprises an annuiar wall member I provided with lugs 2 that receive threaded leg members i that extend into tln-eaded sleeves 4 in the tops oi supporting cylinders I provided with a suitable base members 0. mounted on each threadedleg3isalocknut'lthatrestsontop oi' a sleeve 4. By this arrangement, the !rame i can be leveled and can be raised and lowered to desired position and locked in place.

Secured to inwardly projecting supporting arms 'is a half ring I disposed centrally below the !rame and with its exis vertical; and a cooperatinghaliring l0issecuredtosaidarmlby means o! screws I I, said 'ings 9 and I! constituta ing a. circular clamping device in which is received a cylindrical projecting nosing I! of an electric motor housing IS. The oil distributor head |4 has a central boss li that is' provided with a conical bore I& to flt the conical upper end l'l oi so the motor shalt s, being Secured by a screw I! that is threaded into the end l'l of said shalt s.

A tan or blower member has an axial hole !I initsbodyordiskportionfltoreceiveanannularrib !3 onsaidboss |I,theinnermargin oi'siddiskportion llrestingontopofsidbos oi the parts of such a device easily installable' p aying u: oil.

(CI. ISS-77) !5, encircling said rib !I and being held by said screw IS.

mounted on top of said motor housing il is an annular head member 24 that is provided with an upwardly and inwardly inclined bore ZI. An oil supply pipe 26 is threaded into the lower end oi said bore and a. delivery tube 21 extends through said bore, projecting upwa'dly irom the upper end of said head. The upper end oi said tube is provided with an outwardly rebent tip :I that overhangs a channel member 20 that is provided with an upwa'diy and outwardly sloping outer wall 00 terminating in a horizontal flange Il whoseouter edge portion 32 is rebent around a flange at the periphery oi said distributor head l4.

Extending diagonaliy upward and then substantially ho'rizontaliy rrom said head |4 are oil distributor tubes 34 whose inner ends communicate with countersunk rece'sses IS in the underside of said head l4. nel member 20 rotate with the motor ahait !0. oil works its way upwardly along the wall II into said recesses 35 and said distributor pipes 04 and is flung outwardly by said pipes, fan biades being removed that would interfere withr the The motor head 24 is provided with a. drain tube 38 for any oil that may over-flow' into the head from said channel member 20.

The treme member I is provided around the lower portion of its inner periphery with a iedge 31 on which rests the lower edge portion ot a conical shell member I! whose upper end has a projecting eylindricai portion 39 arranged in close proximity to the upper edge ot the motor head member 24. said shell is provided with openings 40 permitting passage oi air. Disposed in said conical shell member 30 is a cooperating conical shell member 4i with openings 42 corresponding to those 40 of the outer member 30. said inner conical member 4l is provided with an Operating handle 43 so that it may be turned to bring the openings 40 and 42 into alinement with each other, wholly or in part,'thereby regulating the air admitted to the furnace. A looking screw 44 is mounted in said handle 43 bearing against said irame l. said inner conical member 4| is provided with recessed portions 45 around its lower periphery. Into each recess 45 extends a lever 46 that is mounted on a pin 41 in the frame i and the top oi whose outer end portion is engagedby a spring 40 mounted in said i'rame I. The pressure of said springs 40 forces the inner ends of said levers 45 upwardly against the Asthe head i4 and chan-` inner conical member 4i. thus holding it iirmly in s engagement with the outer member II with "its lower edge spaced slightly above said ledge 31.

The frame member l is provided with an annular groove 49 in which are received the edges of hearth supporting plates ill. the reiractory hearth tile or brick being supported on said plates. Thus a hearth 'support oi large area and ample strength is provided and may be installed with a minimum oi efl'ort. The !rame member itself may be easily installed in the i'urnace. mounted at the correct height and adjusted to horizontal position.

Disposed adjacent to the burner is a transformer Si i'or the electric ignition clrcuit. said transformer ii is provided with z-shaped strips 52 providing a vertically extending siot 53 in which are received the hooked ends il of clamp members 55 that extend around one oi' said leg cylinders 5 and are secured by a bolt !I and wing nut 51.

With the irame horizontal, the motor is easily mounted in the clamp member and may readily be adjusted for any desired height. The !rame being horizontal, it is impossible'tor the motor to. be clamped in any but the necessary vertical position.- As it is frequently necessary to make adjustments oi theoil and air discharge levels for proper combustion after the installation is "completed, the importance oi avoiding a releveling procedure each time a vertical adjustment is made is readily apparent. Hereto'iore it has' l been necessary to go through a laborious procedure of cut and try adjustment o! screws and locknuts until a bubble level indicated a proper horizontal discharge level for the oil. As leveling was necessary in all directions around the full circumference of the hearth circle the process 'was further complicated.` As`readiustment is usually done while the boiler is hot it was very inconvenient to place and read the leveiing device in its position upon the burner head within the combustion chamber. With our arrangement after the initial leveling of the !rame at the time of installatiomit is impossibie to set the burner in any but a vertical positionwithout any eflort on the part of the adjuster. and becauseot the construction of the clamping device. with a minlmum total expenditure of eflort.

With the motor in position it is a very simple .matter to place the cap and channel member in place upon the conical end oi' the motor shait, position the fan upon the boss and secure' ali together by drawing down with the screw on the top of the shaft. The importance oi' this construction in coniunction with the clamping means is understood when it is realized with what expediency the vitai parts may be removed and replaced in service. In actual practice it is possible to replace a burner motor and have the installation again in operation in less than iive minutes time. Fans and oil distributor heads usually require less than one minute !or replacement. i

The adTistment of the air shutte: is readily accompllshed by'moving the proiecting handle member. The shutter remains fixed in any position it may be left, but a looking screw is provided to prevent accidental movement or tampering. The inner edgeof the air shutter is close -enough to the head member so there is no sub- -stantial passage ot air through the slit space therebetweem' 'i'hus the amount oi! air is easily controlled, rattling oi the parts is prevented and the shutter may be held securelv in the desired position. l i

op's Obviously numerous may be 'made supporting clamp Suspended therefrom, said wall `member having an' annular ledge around the lower portion of its inner periphery for sup-- porting the draft control member.

2. In an oil burner having a motor, a draft control member and a hearth supporting piate, a

supporting frame thereior comprising an annular wall member and a motor supporting clamp suspended thererrom, said wall member having an annular ledge around the lower portion of its innerperiphery for supporting the draft controi member and also having an annuiar groove around the lower portion ot its outer periphery for receiving the edge ot the hearth supporting plate.

3. In an oil burner having a motor and hearth carrying members, a supporting [rame therefor comprising an annular wall member, motor supporting means attached thereto', said wall member having an annular groove around the lower portion oi its outer periphery tor supporting the hearth carrying members.

a. An oil 'burner comprising an annular wall 'havingan outwardly projecting flange around its lower edge threaded less having their upper ends mounted in said flange, a sieeve for each leg. inwardly and downwardly inclined arms at the bottom of said wall, a semicircular clamp secured at the ends of said arms with its axis ver-' tical, a semicircular clamp for cooperating therewith and a motor having a cylindrical nosing disposed in said clamp members.

5. An oil burner comprising an annuiar wall.

adjustable supporting legs therei'or, a clamp member suspended from said wall member with its axis vertical, and a motor driven burner assembly adiustabiy supported by said clamp member for distributing oil and air tor combustion.

"`6.Anoilburnercomprisinganannuiarwall member, supporting lega therei'or. a clamp suspended !rom saidwali member with its azis ver i tical, a motor supported in said clamp. a head at the top of the housing oi said motor having a cyiindrical upper end portion, said wall member having a generauy conicai member tocontrol the flow ot air to the burner having its lower end supported by-the wall member and having a cylindrical upper end portion closeiy en- 'circling the upper end oi' said head.

'LAnoilburnercomprisinganannularwail member. supporting lega therefor, a clamp suspended !rom said wall member with its axis vertical. a motor supported in said clamp. a head at the top of the housing of said motorhaving a cylindrical upper end portion, a generally conical pertorated air-control member having its lower end supported by said wall member and having a cylind rical upper end portion closely encircling the upper end ot said head. a cooperating conical periorated air-control member nested in said first air-control member, levers pivotally mounted in said wall member with their' inner ends disposed in notches provided thereior in the lower edge of said inner air-control member and springs bearing on'the outeends'of said levers for holding said inner air-control member flrmly in place.

&Anoibrneroomprlsingan annularwali.

adju'stable supporting legs thereior, a clamp member Suspended from said wall member with its 'axis vertical. an electric motor having a projecting nosing held in' said clamp member, the

g shaft of said motor projecting upwardly and having a conlca-l upper end portion, a distributor head having a conical bore fltting on the upper end oi said motor shai't, said head having a boss, a Ian body testing on said boss, and a, screw threaded into said shaft end and holding said head and !an in assembly on said motor shaft.

9. An oil burner comprising an annular wall. adjustable supporting legs thereior, a clamp member Suspended from said wall member with its axis vertical, an electric motor having a projecting nosing held in said clamp member, the shaft of said motor projecting upwardiy and having a conical upper end portion, a' distributor head having a conical bore tting on the upper end of said motor shait, said head having a boss, a tan body resting'on said boss, a. screw threaded into said shaft end and holding said plate and fan in assembly on said motor shalt and means reading oil to said distributor head.

10. In an oil burner having a motor and hearth carrying members. a supporting irame therefor comprising an annular wall member, motor supporting means attached thereto, said wall member having an annular groove around its outer periphery ior supporting the hearth carrying members.

11. An oil burner comprising an annular wall, 4

adjustable supporting lega thereior, an annular supporting member suspended i'rom said wall member with its axis vertical, and a motor driven burner assembly adjustaby supported by said supporting member ior distributing oil and air for combustion.

12. An oil' burner comprising an annular wall, -a fan having a disk-like body provided with an annular skirt depending from its periphery, said skirt having a multiplicity of blades projecting outwardly thereirom, said Ian being supported for rotation above and in closely spaced 'relation to said annular wall, a distributor head having radially extending pipes disposed within said :fan and terminating relatively close to said skirt, and openings in said skirt opposite said pipes, said openings being spaced from said blades so that oil may' be dischargedwithout interi'erence rrom said blades.

13. An oil burner comprising an annular wall, a rotary distributor head disposed substantially entirely about said annular wall. a fan carried body provided with an annular skirt depending from its periphery, said skirt having a multiplicity of blades projecting outwardly therei'rom. said n plane of the top edge oi' said annular wall.

15. An oil burner including a rotatably mounted centrifugal distributor comprising a head having distributor pipes extending radially therei'rom. a fan including a disk-like body and an annular skirt depending from its periphery housing said by said distributorehead and having a disk-like head and said pipes and having openings in said skirt opposite the pipes. and bades extending outand a multiplicity of Ian blades projecting !romsaid sun at spaced intervals except at said openings.

17. The combination denned in claim 16 in which said channel member is tormed of sheet metal and is secured to said head by bending a part thereoi around a part oi said head.

18. An oil burner including a centriugal distributing head rotatably mounted with respect to a iurnace, said head including radial oil distributing pipes, a ianelement fixed to said head having bades au of which are disposed to move in a path radially outside the delivery ends o! said pipes. said blades extending above and below said ends, said element being free oi biades opposite said ends so that said element does not interiore with the sprwing o! oil !rom said distributing head.

19. An oil burner eomprising an annular wall member, a centriiugal distributor rotatably secured to said member and including a head and fan element in the form ot a peripherai wall surrounding the head, said periphe'al wall extending close to said annular wall member, and adjustable elements to control the flow of air to said burner disposed between, the lower edge oi' said i annular wall member and said head, said elements extending inwardly and upwardly irom the wall member to said head.

20. The combination deflned in claim 19 in which said last named elements consist of two nested conical shells secured to said wall member and having openings for'ned in each shell.

21. An oil burne-comprising an annular wall member, a centriiugal distributor rotatably secured to said member and including a head and oil discharge pipes. and a 'fan element housing said head and pipes' and extending close to said annular wall member, adjustable means between said wall member and head to control the flow oi' 'air to the burner, and openings in said element oppoaite said pipes to permit discharge oi' oil from said head independently oi the action oi said i'an element. e

22. In 'an oil burner, a motor driven rotatable head having .iuel distrib'utor tubes, and a fan surmounting the head and having a turned peripheral edge portion carryi a plurality o! !an blades, said peripheral edge portion having a plurality of openings extending therethrough at points adjacent said i'an blades, the dlscharge ends of said iuel distributortubes terminating ad- Jacent an opening in said periphera edge portion i'or discharging a stream of Iuel through said opening substantially free rrom blade impact.

23. In an oil burner. a motor driven rotatable head having mel distributor t'ubes. and a fan surmounting the head and having a turned peripheral edge portion carrying a plurality o! !an blades. said peripheral edge portion having a plurality ot openings extending therethrough at ber.

sldrt depending from its periphery housing said head. tan blades cerried by said member, and

means 'to dlscharge oil !rom said head throu said member ot widely spaced points between said blades without interference from said blades. said head including e channel member disposed substsntiaily entirely within said first-named mem- HERBERT W. ALDEN. MILTON A. POWER&

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