US1471541A - Automatic wick adjustment for liquid-fuel burners - Google Patents

Description

Patented ci. 23, 1923. j i Y ,ltg i l i; aras.;

LEE s. CHADWICK, orY sniiknnnnenrs, oniohssreno'a To THE CLEVELaNi) METAL PRODUCTS coMPaNY, or CLEVELAND, orne, A Conroe-,anton Oromo.

AUTOMATIC WICK ADJUSTMENT FORLIQUID-UEL'B'RNERS.

Application Yfiled February 26,- 1921. Serial'No.f448=,109i

To all. @07mmz't may concern.: y Further-objects ofthe invention are to` Be it known that I, LEE S.' CHADwicK, provide a 'comparatively simple, and ineXs citizen of the United States, residing at pensive contrivance that is-positive of opera- Shaker Heights Village, in the county of tion; adapts itself readily toib-urnersofpre- 55 r Cuyahoga and State of Ohio, have invented vailing. types; interferes in no way with the a certain new andfuseful Improvement in usualfmanipulation ofl theburner;` and-is Automatic Wick Adjustment for. Liquid-l durable Aand not likely to get out oforder. FuelBurners, of which the following is a rlfhe foregoing objects,and others which/ full, clear, and exact description, reference Vwill become apparentas. the description pro- 60 being had to theaccompanying drawings. ceeds, are attained in the embodiment of my This invention relates to liquid-fuel burninvention illustrated inthe draw-ing accomers of the class employing wicks and involvpanying and forming a part hereof, .and ingwiek raising means, and a stop which, while l shall vproceed todescribe this par-'- through the intervention of said means, ticular: embodiment in detail, it is" to be 65 15 serves to restrain the wick against beingV understood that I do notlimitmyself tothe raised too high. presentw structural details further than is `re- As the wicks become charred and require quired by. the terms .of the claims; annexed.

trimming from time to time, the relation hereto. Y between the upper end of the wick and the In the drawings, Fig. lis a central vertical. 70 in? stop which governs the wick raising means section-through a burner incorporating i'inyis disturbed and makes necessary an adjustimprovements; FigQ 2 is a sectional detail ment of the stop to compensate for the part on thelineQ-Q of Fig. l; Fig: 3, a section .on trimmed H the wick. Heretofore, this adthe correspondingly numbered line of Fig. n justment has been manual. 2; and Fig. 4 is a detail similar to Fig.2, 75 a lt is the fundamental purpose of this infshowingthe stop in ei'fectivepositin.

ve-ntion to provide an automatic adjustment Thenburner wherewith have elected to.. for the stop which is'under the direc-tconshow'my improvements associated, vwith no trol of the wick so that the user is relieved, thought of limiting it` thereto, is-'of the type of having to adjust the stop from time to invollvinginner and outer wick tubes l and 80 :so time as the wick is trimmed. Under my 2, respectively, that arel joined in a liquid improvements, therefore, the user may trimv tight manner at'theirylower ends by an an-Vv the wick when occasion requires and connular wall 3, thereby tov enclose a wick space tinue to adjust the wick bythe wick raising between -the tubes that is communicatively means, feeling assured at all times that connectedin theusual way with a supply S there is no danger of raising the wick'bepipe 4 whereon the-burner ismounted. The

yond a safe distance. manner of connecting such burners'and su"l In its broad conception, the invention comply vpipes is so well known that illustration Y prehends the basic idea of stopping the wick of this detail is deemed unnecessary in the by means engaged and acuated by the burned present instance. A flame spreader 1s 90 portion 'of' the wick-that is, the part shownassupported inthe upper end of the adapted to be lightedg'which will not deinner wick tube by a. member 6 that is at-qy forni the flame controlling part of Athe tached to the wall of said tube. ln some wick-that is, the edgewhich determines uses to which theburner is put, the flame `the continuity and uniform character. of the spreaderV is omitted. In Vany event, it per- 95 flame; and which automatically withdraws tainspin-no way to my present invention. itself from the burned portion of the'wick rlhe wick is designated l0 and is adapted, when the wick is in burning position. A tobe raised and-lowered by means of the primary objectof the invention, therefore, wick raising spindle l1V having the usual is to provide a satisfactory construction for pinions l2 which cooperate with Vthe per-V lo" effectually carryingfinto practice this basic forations of ythe wick carrier f3.1 The spinidea. ldle is encased within agtube 15 which-ter- The spindle may be rotated by means of the Y usual hand wheel 18 that is fastened to its outer end. A circular stop plate 20, the

edge whereof is provided with teeth 21, is

mounted upon the spindle between the disk 16 and the hand wheel 18, and a spring 22` interposed between the hand wheel and stop plate tends to torce the latter into trictional engagement withthe disk 16. rlhe stop plate has an arcuate slot 23 concentric with its 'a-Xis ot rotation, through which the pin 17 projects.V

Pivotally supported through brackets 30 from diametrically opposite points oi* the inner wick tube 1 are a pair ot bell cranks 3i that carry rollers 32 (or equivalents) at their upper ends. rEhe portions ot the bell cranks wherein the rollers 32 are supported entend through openings in the upper end ot the inner wick tube so that the rollers normally repose within' the wick space in a position to be engaged by the upper end of the Wick when the latter is elevated. inner ends of the bell cranks are pivotally connected to the upper end or" a link 35 and the lower end of this link is similarly connectedY to a l ver 36 which has one of its ends pivoted at 37 to a bracket 38 that is attached to the wick tubel adjacent its lower end. VThe tree-end of the lever 36 entends out from under the wick tubes at a point substantially opposite the point where the lever is pivoted, and it is shown as guided by a member 39 that is carried by the wick tubes. i spring 39a tends to maintain the tree end oithe lever elevated and, through the intervention of the link 85, thebell cranks 31 rocked in a direction to project the rollers 32 into 'the wick space. rlhe outer end of the lever 36 is connected, through a link e0, with the inner end of a rocker arm il that is pivoted at d2 to a bracket i3 that depends from the tube 15 a suitable distance inward from the stop plate 20. rlhe outer end or" the rocker arm repos-es' beneath the stop plate and there has pivoted to it a pawl t5 which has a limitedangular movement. rthe pawl is so shaped as to with adjacent portions oi' the rocker arm to positively stop it in both directions. rlhe manner of mounting the pawl 15 upon a pivot pin 46 that projects forwardly from the rocking arm el, per mits the pawl to be shifted outwardly along the pin against the tension of a spring 47 that is compressed between the head of the pin and the pawl, thereby to move the pawl out oit reach ot the stop plate 2O so that the stop plate, and consequentll the spindle, may be rotated freely tor a purpose that will be presently explained.

While l have shown two bell cranks 3l `with rollers 32 engaging the wick, it is ob- .them inwardly, rockingl the bell cranks 31 in a direction to depress, through link 35, the lever risthe lever swings downwardly it rocks the arme-1 through the intervention of link l0 to elevate the outer end of the an` and project the pawl l5 into engagement with the teeth or" the stop plate 20. is the stop 'plate rotates, it swings the pawl over into the position shown in ig. 5, and the pawl, being arrested against 'turther movement, serves as positive stop tor the plate, and further movement or the spindle is permitted by reason ot the lost motion connection be tT een ti e stop plate and the disk 16 afforded by slot 23 and pin 17. rllhis eXcess movenient oi the 'ndie aiter the rollers 32 with dray' the b.; f tions the y i is s f to elevate i e wick to hurling posirnin its man 'in i 'i height.

Thus it will be seen that my invention provides an automatic adjustment between the wick, and the stop .vhich controls the wick raising moans, and removes 'the human element trom the operation, thereby insuringy at all times against an unsafe conon by an undue elevation ot 'the Wick. will l that the element also be noten which actually Vgoverns the stopping oii the wick is engaged and actuated by the burned portion oit the wick; that the element (in the present case, the roller 32) cooperates with a part ot the wick removed from the portion (in the present instance, the outer` edge ot the vlek) which controls the character oit the 'dame so that the flame is not affected or influenced in any way by the element; and that the element automatically removes itself from the wick betere the wick assumes burning position.

llllhen it is desired to remove the wick Yfrom the burner, as for' he purpose ot replacing` it with a new wick, the pawl l5 is moved out ot reach ot the stop plate 20 in the manner previously explained an the spindle is rotated i: a direction to elevate the wick carrier 13 beyond the pinions 12 after which the'wick may be readily with drawni'roei tle wick space. The manner ot inserting a yf wiel; will be obvious from the above.

l have led the i'ollowin other divisions oi the same general subject matter as that to which the present case relates: Serial No. 448,108, :tiled February 26,

1921; renewal application-No. 565,748, filed June 3, 1922 (originally Serial No. 449,842,` filed March 5, 1921) Serial No. 528,813,filed Jan. 12, 1922, and Serial No. 528,814, filed `January 12, 1922.

Having thus described my invention, what I claim is 1. In a. burner of the class set forth, the combination of wick raisingvmeana-a stop for the wick raising means which acts therethrough to limit the upward movement of the wick, and means arranged to be engagedl 1 tuated by the wickfor rendering the stop effective. p

3. In a burner of thefclass set forth, the combination of wick raising means, a movable stop, a stop member, a lost motion connectionY between the wick raising means and stop member,and means arranged to be engaged and actuated by the wick for moving the stop into cooperation with the stop member.

4. In a burner of the class set forth, the

combination of wick raising means, a member movable with the wick raising means, a stop member frictionally engaging' the former member and tending to move with it,

'f" a lost motion connection between said (iff.

members, a stop adapted to be moved into cooperation with the stop member to'arrest the movement of the latter, and means arranged to be engaged and actuated by the wick for moving the stop into cooperation with the stop member.

y5. In a burner 'of the class set forth, the

combination with a wick raising spindle, a member fixed to said spindle, 'a stop `member mounted onthe spindle and frictionally 'engaging the former member, the stop member having a series of teeth, said members having parts cooperating to limit their relative angular movement, a stop movable `into cooperation with the teeth of the stop mem-V ber. and means arranged to be engaged and actuated by the wick for moving the stop into cooperation with the teethfof thestop' member.

p 6. In a burner of the class set forth. the combination with a. wick raising spindle.- a

member fixed to said spindle, a stop mem-V ber mounted on the spindle and frictionally engaging the Jformer member, the stop member having series of teeth. said members having one'a-n opening'and the other a pin nroiecting through said opening thereby tov limit the relative angular movement between the members. a stop movable'into cooperation with the'teeth of the stopmember, and

`means arranged to be engaged and actuated lby the wick for moving the stopy into coop'- eration 'with the teeth of the stop member.v

7. In a burner of the class set forth, theI combi-nation of aY wick raising spindle, a

member secured to said spindle,.an operating handle fastened to the spindle and spaced longitudinally thereof 'from the said member, a' stop plate ymounted upon theV` spindle` between thevmember and operating handle, a spring interposed between the operating handle and stop-member for urging the. stop member into frictional engagement with the first mentioned member, said members vhaving parts cooperating to limit the angular movementv of one of said members withV respect tothe other, a stop adapted to be Smoved into Aco-V` operation with `the stop member, and means arranged to be `engagedand actuated bythe wick for moving-the stop into cooperation i with the stop memben, n

8. In a burner of the class set forth, the combination of Vstop mechanism for limiting the upward movement of the wick, a member movably supportedl'by the burner andarranged to be engaged and moved by the top ofthe wick, and operative connections between `said member and the aforesaid mechanism, said membery being out of Acontact with the top of the wick when the wick is inv burning position.

9; lInv a Vburner of `the classy set forth, the

combination of wick raisin@ means asto n ioo for limiting the movementv of saidfmeans, a member movably supported by the burner and arranged to beengaged .and moved by the top of the wick, and operativeconnections between said member and the aforesaid stop, said member. being out ofcontact with the top of the wick when the wick is in biirning'position.

10. In a burner of the-class set'forth, the combination of wick raising mea-ns, a stop for limiting thev movement of saidmeans.

'a memberfpivotally supported by the burner and arranged to be engaged and swung by the wick. and operative connections between saidV member and the aforesaid stop whereby.

the stop is rendered effective when the wick is elevated above a predetermined point.

11. In a burner of the class set forth'. and involving wick tube. wherein acvlindrical wick isadapted tobeguided. wick raising means. alstop for limiting the movement of saidl means. awpair of bell cranks'pivotally supported their angles from diametri-v cally opposed partsof the'wick tube andY situated in teriorly thereof. the corresponding branches of the two bell cranks being arranged te be engaged by the wick thereby to swing Vthe `bell cranks when the wick isy elevated. a lever pivotally supported within the lower end of the wick tube, means connecting saidlever withxthe other. ends rof. the

bell cranks, and operative connections between said lever and the aforesaid stop. Y

12. A burner of the class set forth and involving an inner and an outer wick tube between which a cylindrical wick is adapted to be guided, a wick raising spindle supported oy the out-er wick tube, a stop member having a lost motion 7 connection with the spindle, a movable stop for cooperation with the stop n'ien'iber, mea-ns situated interioriy of the inner wich tube and ar 1anged to be engaged land moved by the wick, and operative connections between said means and the stop. i

13. it burner of the class set forth, and

involving an inner and an onter wick tubeV between which a cylindrical wick is adapted to be guided, a wiclrv raising spindle snpported by the outer wick tube, a stop member having a lost motion connection with Ying movement with respect to the rocker arm, means situated interiorly of the. inner wick tube and arranged to be engaged and moved by the wick, and operative connections between said means and the rocker arm.

1d. ln combination, a wick guide, a wick, wick raising means, a stop movable into and ont ot operative position for limiting the movement of the wick raising means, means operated by the top of the wick tor moving the stop into operative position when the top of the wick is raised to a point near the top of the guide, and means permitting the wick to be raised a predetermined distance after the stop has been moved into operative position.

15. ln a burner of the class set forth, in combination with the wick, a wick stop, and means operated by the burned portion ot the wiclr for rendering the wick stop operative, said means being out of Contact with the burned portion of the wick when the wick is in burning position.

1G. ln a burner ofthe class set'torth, in

combination with the wick, means havingv operative connection with a portion of the wick other than its burned portion for re- 1 Vpiedetermined position, and means operated bv the burned portion of the wick for ren? dering the aforesaid means operative.

17. In a burner of the class set forth, in combination with the wick, a stop for limiting the upward movement ot the wick, and means tor rendering the stop operativey said means being engaged and actuated by the burned portion of the wiclr and arranged to automatically withdraw therefrom when the wick is in burning position.

18. ln a burner of the class set forth, the combination of wick raising means, a stop tor the wick raising means, and means ar ranged to be Ael'igaged and actuated by the top ot the wick for rendering the stop eiective, the top of the wick being nno'o structed when the wick is raised to burning position. Y

19. in combination, a wiel; guide, wich". wick raising means, astop movable into and ont orp operative position tor limiting tl e movement of the-wick raising means, means operated by the top ot the wick for movingy `the stop into operative position when the top ot the wick is raised to a. point near the top or the guide, and means permitting the wick to be raisedy apredetermined distance after the stop has been moved into operative position, the second mentioned means being withdrawn from the top of the wiclr` when the wiclr is raised to burning position.

20. ln an oil burner, in combination with the wick, wick raising means, a member arranged to be engaged and moved by the wiclrwhen the latter is elevated, mechai i which when coupled to the wiclr rai means serves to limit the movement ot said means, and further means actuated by the movement ot he member tor coupling said mechanism to the wick raising means.

ln a burner of the class set fort i, combination oi".- wick raising means, a detent `for cooperation therewith to limit the move ment ot the wick raising means, and 'vins arranged to be engaged and actuated by the wick ifor presenting the detent in operative relation to the wick raising means.

22. vln a burner ot the class set Ytortln the combination of wick raising means, a mow able stop adapted to cooperate with limit the movement of the wiclr raismg,` means, and means arranged to be en and actuated by the wick for movi V aforesaid stop into cooperation with @ne wien raising means.

28. ln al burner of the class set forth, combination of wick raising rceans, i tor cooperation therewith, a cai ier 'for 't stop and with respect to which the stop has limited movement, and means arranged to be engaged and actuated by the wick tor moving the carrier so to present the stop to the wick raising means.

2e. ln a burner ot the class described, the combination with the wick, ot a member movable therewith, a device conne iblo to said member, means enga and by the wick when the latter is elevated if Lil@ s' Gltecting he connection of said device to the member, and a stop -for limiting the novellO member, means for limiting the movement of the device, and further means for rendering the connection between the device and aforesaid member inelective.

26. In a burner of the cla-ss described, the combination with the wick, of a member movable therewith, a device having limited movement in the direction of movement of said member, and means'engaged and actun i Y ated by the wick when the latter is elevated 10 for eecting connection between the device and said'member.

In testimony whereof, I hereilnto aix my signature.

i LEE s; oHAnwICK. i

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