US1762897A - Air inlet device for oil burners - Google Patents

Description

June 10., 1930. P. s. siNcL-AIF:` f 1,752,897

' Aia INLET DEVICE FOR lOIL BuRERs Filed Nav. 27, 192e s sheets-sheet 1 A TTORNE Y.

June 10, 1 930. P. s. slNcLAlR vAIR INLET DEVICE FOR OIL BURNERS Filed Nov. 27. 1926 3 Sheets-Sheet 2 INVENTolg Pfff/JI ,.5 Zaza;

QfaA/b TTORNEY.

'.'Jun'e 10, 1930. P. s. slNcLAlR 1,762,897

AIR INLET DEVICE FOR OIL BURNERS Filed Nov. 27. 192e 3 sheets-sheet s ATTORNEY.

Patented June 10, 1930 Unirse! STATES PATENT ori-ICE PETER S. SINCLAIR, oF noLYoxn, i/iASSACiiUSETTS,` Assieivorv To HoLYo'KE HEAI'JIERY COMPANY, or HoLYoKE, MASSACHUSETTS, A CoRroRATioiv or MASSACHUSETTS 4 Ain INLETy DEVICE 'ron ori. BURNERS Appneation filed November 27, 192e. Semi No. 151,076. j

This invention relates to improvements in air inlet `devices for oil'burners of the type of construction in which the Wat-er heating` coils are located within an iiiclosing casing,wliich 5 inclosing casing serves as a combustion chain. ber in which a blue flame is produced, and to carry off the heated products of combustion. The present invention is an improvement on the construction shown, described, and claimed in my'prior joint Letters Patent of Y theUnited States granted to George C. Gill, Peter S. Sinclair, and Patrick Moakler, #1,246,813, dated November 18, 1917. In this patent isvshown a removable riiig'whicli is located between the burner and the inclosing casing and having an air tight joint on the casing andbuiner respectively. This ring is formed with a series of openings to permit the requisite volume of external air to enter the casing from below and pass upward into Contact with the upper part of the burner. The present invention has for an object to provide an air inlet device in which the flow is substantially unbroken and uniform and without its being broken up into small :streams of air which is the case with a `perfo.

rated ring.

In the present invention, this ring` is omitted and in its place there is provided an annular ,flange which is formed as anlintegral part of the back casingand front casing lor door respectively. These flanges are each formed with a pluralitv of spaced lugs or pro# jections, which lugs are designed to engage the outer surface of a collar or ring of the burner, whereby an annular space between the collar or ring and casing is provided to permit the external air to flow as al solid Stream upward into the inclosing casing and -r10 above the burner; f

The invention further comprises a lseries of lugs located on the interior surface of the collar or ring. These lugs are for the purpose of radially and concentricallyspacing T5 this collar'from the outside surface ofthe burner in order to permit the external airto flow upward within the collar and directly into contact with the upper end of the wick portion of the burner and below the usual delecting plate. or Haine spreader of the lugs which operate as burner. l.Theyl also serve the important feature of accurately and concentrica-lly centeriiig'the collar relativeto the inner surface of the casing. Some -of the lugs o nthis collar are longerand slitted topermit them to Dass through openings or spaces which are formed `on the flange that is located and attached to the outside of the burner, .whereby when the i collar is moved downward these longer lugs will pass through these openings in the flange. The slits will then pass onto the flange. This collar or ring can therefore be secur-ely locked t-o the burner, and, at the same timek itis accurately centered and spaced fiom the outside surface ofthe .burner for producing an annular opening of'uniform area which' com- Vpletely surrounds the outer surface of thc burner. The other or shorter lugs that do not pass through the openings or1 slits in the ilange'are designedto rest directly on'tlie upper surfaceV of the flange thus preventing the collar or ring from tilting relative to the axis of the burner.. The collar is therefore accurately positioned or centered both vert1- cally and horizontally on'the burner. "I lie annular openings Aon both the inside and outside ofthe vcollar are of uniform area throughout theiry length.

It isv also to benoted that in the elimination of the, removable perforated ring em.- ployed infin former' joint Patent No. 1,246,813 and inl j tion of the integral yflange having spacing an air controlling and burner 'centering memberthat a. very much more simple structure is obtained lat materiallyless cost to manufacture.

ring which prevents tilting of the4 same, which tilting consequently would cause an unequal flow of air resulting in an uneven flame and imperfect combustion;

the substitution oi' utiliza-` This also makes a positive contact with the collar yor In! the elimination of the. removablelp'erforated ring or collar shown in my prior joint Y patent and in the substitution of the integral flange having air spacing lugs on the door and back casing, together with the interlocking collar or ring member on the burner, a simpler structure is obtained and a positive engagement made between the burner collar ring or collar of the wicktube in order to have an annular air space between the ring or collar and wick tube. It also provides the annular flange on the front and back casing for obtaining a predetermined amount or quantity of air4 to form perfect combustion.

A more simple structure is obtained at less cost of manufacture by the elimination ofthe removable perforated ring and the substitution of the integral internal flange with spacing lugs on the door and back casing. This structure in conjunction with the interlocking collar or ring member makes a positive connection between the burner collar or ring and the casing resulting in an even and perfect combustion entirely around the burner and consequently more heat.

I claim that by using the flange and lugs on the door and the back casing, bydispensing with the perforated ring and by pivotally supporting the feed pipe and the burner that the burner can be positioned closer to the heating element, which will obviously heat the water more quickly.

I claim that by using the pivotal joint construction to permit the burner to be swung out from the casing when it is necessary to either clean it or to change the wick permits thc burner to be positioned nearerl to the -water heating element in the casing with a more intense heat delivered `to the water heating element. p

Reference is now made to the drawings and specifications for a full description.

Referring to the drawings: Fig. 1 is a vertical elevational view of the complete oilV water heater showing the interior of the inclosing casing with the plurality of spirally arranged coils therein, the oil burner, the integral flange on the interior surface of the burner and door respectively, and the means for pivotally supporting the oil supply receptacle and its feed pipe.

Fig. 2 vis a sectional plan view considered on the line 2-2 of Fig. 3.

Fig. 3 is a vertical sectional view showing the collar or ring and the upper portion of the burner in section illustrating the supporting and locking lugs on the interior of the collar or ring and in engagement with the flange on the burner.

Fig. 4l is a detail plan view of a part of the upper end of the burner and particularly showing the flange on its outer surface with the three slots or openings formed therein.

Fig. 5 is a side elevational view of Fig. 4l.

Fig. 6 is a plan view of the collar or ring illustrating the locking, supporting, and spacing lugs which are secured on the interior surface of the collar or ring.

Fig. 7 is a side elevational view of Fig. 6.

Fig. 8 is a detail view of a portion of the outer part of the burner in section, and illustrating one of the shorter supporting and spacing lugs Von the outer surface of the flange of the burner.

Fig. 9 is a View similar to Fig. 8 illustrating one of the longer and slitted locking and spacing lugs and the flange of the burner spaced from the opening in the lugs.

Fig. 10 is a perspective view of the collar or ring showing the location of the locking and spacing lugs on its inner surface.

Fig. 11 isa perspective view with the collar removed but illustrating the manner of locking the collar to the flange of the burner.

Fig. 12'is a plan view of the collar or ring showing a modification of the locking lugs.

Fig. 13 is a modification of the burner illustrating the raised ridges or mutilated threads with which the lugs shown in Fig. engage.

14 is a detail of one of the raised ridges or mutilated threads.

Fig. 15 is a detail of one of the locking lugs on the ring shown in Fig. 12. I

Fig. 16 is a detail perspective View illustrating the relation of the lugs of the integral flange in engagement with the collar or ring of the burner for centering the same in the casing.

Fig. 17 is a detail plan view of the flange and itsintegral lugs and the collar or'ring showing the annular air space.

Referring to the drawings in detail:

1 designates the back casing; 2 the front or door part of the casing which is pivotally connected to the back casing as indicated by the hinge construction 3. Located within the inclosing casing are the water heating coils el, several of which are shown that are connected at their upper end and lower end to the common manifolds 5 and 6. The lower manifold c serving for the entrance of the water to be heated which flows upward through the coils 4 to the manifold 5 where the heated water is discharged through the outlet pipe 7. 8 is a top casting or plate which is secured to the back member 1 by means of the bolt construction 9. The lower end of the back casing 1 is formed with a flared or downward and outwardly extending part, indicated at 10 and having the inwardly turned flange 11. Secured to this .flange is a plate 12 for supporting the burner 13 and feed pipe 15. 1el is an internally retedV lugs 29 to register with the openings or place by means of the springclip 23.

cessed'lug or projectionwhich irs/located on pedestal if desired. An oil feed pipe is pivotallyvconnected to the-burner plate 12 as indicated bythe pin 16, whichpin is a part of the lower clamping member 17 in which the feed pipe 15 rests.v y 18 is Vthe upper clamping member that rests on the upper surface of the feed pipe 15 and is secured to the lower clamping member 17 by means of the screws 19. Attached to the feed pipe 15 is a cylindrical member 2O which supports the remov-V able oil supply can or reservoir 21. The out.- er end of the feed pipe 15 rests upon the block or footpiece 22 and is releasably retained in The burner V13 is secured to the fuel feed pipe 15 by meansof the clamping Vconstruction 24, andthe block or rest 25. at 24, also supplies oil to the burner'13 vfrom the feed pipe 15, as shown at 17 in my prior joint Patent No. 1,246,813, Nov. 13, 1917. The burner 13 is formed with an external flange or rib 26, which rib isdesigned for supporting and securing the collar ork ring 27, a plan view of'which is shown in Figs. 6 and 12, a side elevational view in Fig. 7, aA perspective view in Fig. 10. Secured to the inner surface 28 of this collar are a series of locking and spacing lugs or projections29 and 30. The lugs 29 are formed with a slot or cut out portion 31 (see Fig. 9) and with a surface or edge portion 32 whichr is at right angles to the slot 31. enlarged view, Vare not formed with slots or openings as are those illustrated in Fig. 9 by the reference numeral 31. These lugs 29 and are each formed with the securing tongues 33 which pass through openings in the collar or; ring 27, and then bend over at the outer-v surface of the collaror ring27 for securing the saine thereto. This construction is clear ly shown in Figs. 2. 3. and 7. It willrbe observed that the lugs 29 are longer than'the lugs30. n

.The flange 26 is. formed with the cut out openings or spaces 34 three of which are shown in Fig. 4. The collar 27 is secured to the flange 26of the burner by .placingV it over the lupper end'of the burner and then pushing it downward as indicated by the arrows 35 in Fig. 11, then, by turning it toward the right or left hand as indicated bythe arrows 36. This turning causes the longer and slitspaces 34 in the flange of the burner 13. l

The next operation is to Vinovethe collar or rim 27. The slots 31 will now be opposite the ends`37 of the flange 26, next turn the collar 27. This permits the slots to pass onto or engage with the flange 26 of the burner, whereby the ring or collar 27 is interlocked to the flange 26 of the burner. At the same ti1ne,`thelower ends 30 of the lugs 30 rest The part indicated y The lugs 30, as shown in Fig. '8.,'

klated threads. y y thelugs 47 are designed toengage the threads directly onthe'upper surface of the flange 26 of the burner.r The lugs 29 and 30 also serve the purpose offaccurately,spacing or centering the'collar or ring 27 on.r the burner 13,

whereby a uniform annularjair space 38 is vprovided between the burner 13 and the inner surface ofthe collar or ring 27 This is and accurately alignstheslits 31 of the lugs 29 withA the ends 37 of the flange 26. Also the lugs 30 restingon the flange 26,-together 'with the interlocking of the slits 31 and flange 26 prevents the collar or ring 27 from tipping or becoming inclined. K p

The space between the inner surface of thering or collar 27 and the outer surface of the burner 13 is indicated by the reference numeral 38. This space is for permitting Vthe air .to pass upward inav solid unbroken stream and directly into. contactrwith the upper edge of the wick 39 of ythe burner 13.

For theV purpose of permitting the external air toj pass upward around the outside of y the collar or `ring'27, a flange 40 is cast asa part of the back casing'l.- `This flange is vformed with' the integral spacingand centering lugs 41. Theldoor memberis also formed with an integral fiange'42 and'centering and "spacing lugs 43, whereby when the burner 13 and ring or collar.: 27 is inserted, it will rest against the lugs 41 of the `back casing, and, when the door is closed, the lugs'43 will engage or contact with theouter surfacey 'of` the collar-or ,ring27 of the burner 13. Thisconstruction provides anaccurate wayfof `forming a uniforniand annular. air space 474 around the outside of the collar or ring 27. Theseilugs further perform the important function of accurately Vcentering the collar` or ring 27 in the casing'.

This isclearly shown inthe plan view in F ig.. 2, thus providing the uniform annular air spaces 44 on both the back casing 1 and door 2, Thelower sides of these'lugs 41 and' 43' areV inclined asindicated at 41. Y

' Referring to Figs. 12, 13, 14 and 15. The

T burner 13 is formed with several struck up inclined parts 45, which in effect are muti Thenotched recesses 46 in onthe collar or ring 27, whereby when the collar or ring 27 is turned, it will be locked, secured, and centered on the burner 13 in the same manner as already described in connection with Figs. 10 and 11.

One of the advantages ofthe elimination of the perforated ring referred to in the above patent betweenthe casing andv burner is that in practice users often attemptto insert it in an inverted positionresulting in poor combustion and in the causing of large quantities of carbon which collects on the coils.

Further by the elimination of the removable perforated ring shown in the above patent and the substitution of an integral ange with spacing lugs on the back member and door, a more simple structure is obtained and one that materially saves in the cost of the manufacture of the heater. Also by the elimina-tion of this ring and in the substitution of a flange with spacing lugs it provides substantially an open and unobstructed iiow of a. solid stream of air into the casing since there is no baiiing or retarding or splitting up of the continuous flow of air to the burner. By reason of the interlocking connection between the collar or ring and the flange and spacing lugs of the burner, the collar or ring is accurately centered, and, the area of the annular opening is uniform throughout its length thus producing better combustion and a more even and intense heat.

It will be seen, therefore that I have provided a very accurate way of permitting the external air to iiow upward within the collar 27 and also outside of this collar in substantially an unbroken stream. rIhis construction produces an even distribution of the air to the wick and produces also a blue Haine which signifies or indicates complete combustion Within the inclosing casing and directly below the water heating coils 4.

The flange 26 in Fig. 13 operates to accurately center the collar or ring 27 since the y lower end 47 engage the same when the colf temperature in a specified time. The perforated ring of my oint prior patent does not permit of the location of the burner in the best heating position. This advantageous water heating position of the burner is accomplished by means of the structure herein described.

Another important feature is that the burner can be properly cleaned and the wick easily Achanged when swung outward away from the enclosing casing. rIhis feature is obtained by means of the two piece integral ianges 40 and 42 on the casing and door respectively. The onev piece perforated ring of said patent will not permit the removal of the spreader part of the burner for cleaning purposes.

What I claim is:

l. An oil water heater comprising in combination, an inclosing casing, water heating coils therein, an oil burner located within the casing, a removable collar or ring like member on the burner, spacing and centering means on the casing which engage the collar or ring on the burner to provide a concentric and annular air space for causing a predetermined and substantially an unbroken flow of air around the outside of the collar or ring and upward into the casing.

'2. In a water heater, the combination with an enclosing casing formed as a back member and front or door member, a water heating element in the casing, an oil burner, a removable collar or ring on the burner, cooperating lug means Ion the back and door members which engage and center the said collar and provide an annular air space between the casing and collar or ring whereby a predetermined `quantity of substantially unbroken air will flow through the said space.

In an oil water heater, the combination with an enclosing casing formed as a back member and a front or door member, a water heating element in the casing, an oil burner, a removable collar or ring on the burner, cooperating projecting lug means on the back and door members which engage the removable collar for centering the collar and for providing an annular air space between the casing and collar or ring.`

4. An oil water heater comprising in combination, an enclosing casing, a water heating member therein, an oil burner, a collar or ring on the burner, an integral inwardly extending iange on the casing provided with inwardly projecting spacing lugs, which spacing lugs engage the collar on the burner for centering the burner in the casing and for forming a positive annular air passage way around the collar, whereby substantially a continu-ous and unbroken stream of air will enter the enclosing casing.

5. In an oil burner for oil water heaters, an annular flange on the burner which flange is formed with openings or spaces therein, a collar or ring member engaging the burner and flange, means en the collar or ring which passes vertically through the openings or spaces of the annular flange for locking the collar to the burner when the collar is rotated, said locking means also operating to accurately center the collar on the burner and to provide a positirely uniform and Concentric annular air space between the collar and the burner. Y

6. In combination, in an'oil burner, an annular flange on the burner, which flange is formed with openings or spaces cut therein, a collar or ring, slotted lugs on the collar which are designed to pass vertically through the openings in the flange, and, when the collar is turned, the slots of the lugs and flange will be interlocked said lugs also engaging the burner for accurately and concentrically which contacts with the burner for centering' centering the collar or ring relative to the ted lugs on the colleror ring which are de! signed to passv vertically through the openings in the flange, and, when the collar or ring is turned, the slots of the lugs and flange will be inteilocked, said lugs also engaging the burner for accurately centering the collar or ring relative to the burner for providing an annular air space of definite or positive area bet-Ween the collar or ring and the burner, and other lugs on the collar which normally rest upon the flange.

' 8. In an oil water heater, the combination with ain enclosing casing whichl serves as the combustion chamber water heating coils in the casing, an oil burner whose upper end isv locatedV in the casing and below the coils, a collar or ring on the burner, means on theL casing which engages the collar for providing van annular air inlet space between the outside of the collar or ring and the casing, means on the inside of the collar or ring the collar or ring on the burner andk for providing a free and substantially an unbroken and predetermined airspace between thev collaror ring and the burner, the latter means having interlocking connection with the K and casing, v n

casing, a flange on the casing having inwarde burner for retaining it in placeY on the burner.

9. An oil water heater comprising, incombina-tion, an inclosin'g casing, a water heating'element therein, an oil burner in the cas-y ing, a collar or ring like member on the burner, spacing and burner centering means on the casing engaging the collar or ring on the burner to provideV a positive or definite annular air space for causing a predetermined and substantially unbroken iiowV of air around the collar or ring and upward into the` casing, said spacing and centering means comprising a flange on the casing and wedge shaped lugs on the iange which engagethe collar or ring. 4

l0. The combination in a water heater, an

o il burner, an enclosing casing, water heating i Ycoils in the casing, devices on the casing which engagefthe' burner for centering theburner in the casing for providing a positiveanniilar. and substantially an unbroken air space around the burner. Y Y A l 11. The combination, in a'water heater, a

casing, an oil burner' therein, a rib on the burner, a spacingiing between the burner a water heating'member in the ly extending lug devices `which engage the spacing ring for providing substantially ak solidk or unbroken supplyof air acent-the .ing inA combination with openings of the rib to enclosing shell,

`= mined rate of n air tofthe burner between innersurface of the casing, inwardly projecting bracket ydevices on the spacing ring which engage the burner `for providing `substantially a second unbroken supply vof a'ir adjacentthe burner proper, the said ring member serving to separate the` two unbroken. vsupplies of air, theinwardly projecting lug means on the ring having notches which engage the rib on the burner for interlocking the ringmember to the'burner, and which 'inwardly extending lug devices on the flange engage ,the ring for centering theburner and forr preventing its becoming displaced or moved into an inclined position. y

l2. In an oil water heater, the combination,

an enclosing casing, water heating elements inthe casing, an oil burner and oil feedpipe for the Yoil burner on which the lburneris mounted,a base base plate whichV comprises a perforatedpart on the base plate, a lower oilfeed pipe clamping member having' avrecess to receive the feedv pipe and alpart which extends through the perforated part of the base plate, an upper oil feed pipe clamping member whichv rests upon the oil feed pipe, means for securing the plate attached to the casing for-pivotally supporting: the burner on theclamps together, and means for detachably l retaining the oil feed pipe and the burner onY tol be recessed clamps forL receiving the oil feed pipe on which the burner is placed, one of the clamps having a projection located in an opening'in t-he baseplate, and a spring catch on the base plate rfor retaining the feed pipe on the burner in its operative position.

14. An oil burner for water heaters havy an enclosing casing, a removable collar or ring on the burner, means for detachably securing the collar `or ring on the burnerv comprising a rib on the burner having openings, notched lugs on the collar or ring adapted to extend through the position the notches for engagement with the rib, whereby when t-he collar or ring is rotated it is connected to the burner and centered thereon, as described. y l5. In combination in a water heating apparatus, a casing, a water heating member therein, an oil burnerhaving an outerwick devices for pivotally att-aching the burner to the casing, devices on the casing for concentrically centering t-he burner in the casing and for permitting av predeterand casing to-the burner, the burner, V which engage thel wick enclosing shell for permitting a. predeterminedxrate ofv flow of theouter wickl ensupporting the:

How of air between the burner;

a collar device on Y spacing members onv the collar a base plate,janl leo iso n' closing shell of the burner and the collar device, whereby a blue flame is produced.

16. In a device of the character described, a water heating element7 a casing enclosing the water heating element and 'forming Va flue, a burner supporting part on the casing, an oil supply tank, a pipe pivotally connected to said supporting part and communicating with the oil supply tank, a burner on the pipe, means for supplying oil to the burner from the pipe, the burner being manually movable with theV pipe into a position under and away romthe lower end of the water heating element.

17. In an oil water heating apparatus, the

' combination with an enclosing casing, a door forming a part of the easing, a vwater heating member in the casing, an oil burner, a spacing ring, an oil feed pipe for the burner, means for pivotally attaching the burner to the said casing to permit the burner to be swung out when the door is opened, lug means on the ycasing for engaging the spacing ring for-centering the burner in the casing and for providing a uniform supply or flow of air adjacent the upper or wick edge of the burner, a removable flame spreader for the burner, the construction and arrangement being` such that the burner is positioned by said lug and ring means relative to the water heating member so as to impart the maximum heating effect to the water heating member, and, also to permit the flame spreader of the burner to be removed, when the burner is swung outward and away from the enclosing casing.

PETER Si. SINCLAR.

Images