US1766231A - Boiler cleaner - Google Patents

Description

yJune 2 4, N, L, SNow ET AL 1,766,231

norman chaman v rma .my 2v.' 1925 2 shuts-.sheet 2 A 3% f4 y ATTORNEY:

Patented JuneY 24, v193e v, NonMANLgsNoW Ann ALBERTHW.HGNYWILLQR.; or DETROIT, MICHIGAN, AssIeNoE* To;nmivroivn'j Povvna' SPECIALTY'CORBQRATVIQN', or, nn'rnorr; MioHieAN, Anon; f

crossfsection of a boiler;cleanervr showing my -PoRAg-ION on MICHJIGAN Applicata; mea my. 27,

as more fully `hereinafter set forth'. n Y n l Referring to d`rawingsins which like reference characters indicateg-corresponding Figure. l anfelevastional view partly'y in and has fork its ,object-the improvedapparatus i invention:applied-thereto;

Figure 2,isV agviewfjalongf22of Figure-v1 with portion of "valve'voa'sing-broken:

away.; 5f l' Figure jisa'sectional'yiew showing jin Figure l isa fragmentary View in section illi'istratingl mynfimproved;.,eonstruction for,-` k preventing leakage k,around `the valve :stem ;,v

gure 5 'View COlGSPODdlng/to Figure 4 ShQWng a Slightly',modiedfconstrucaonf; and,y

Figure 6 f is fragmentary sectional review showing a valveutfconstruction'adapted to.

element.

Inv the fboiler oleane-ri or7V d blowevar f assembly' shown Ein;l Figures ,-1 l and 25 reference 'charactefrjL lOf indicates thegrotatable *blower element extending througlrtlie boiler walll'l and provided vvifthioneferinoreclean-A get )se-necl';forA supplying, fthezj cleaning fluid such'fas steam or thev like-tothe 'blower ele-L J neck, this valve being,:located j'withinfthe valve casing or steampot lat; the lower end. of'y thel goose-neck.; :lheg blowerv1 element is adapted `rtorybe rotated by suitable means' in-v Y kcluding` reduction gearing .comprising :inthe:

present instance the'A cha-in'fwheel 16,the"kry jnates in a cone-shaped portion'w which,r4

. pinion 17 4and the gear 181meshngwiththe cassingfl and having its lower edge yengageablev with-.the fvalve stem 22 wliieh extends f up wardlythrough the valve casing. This'lev'er Y. element and s y v BOIL'ERl oLEANEn isactuated ,a suitable cam 23Qwhichlatter ,n v

rotates with the blower element. l

24; is l aj cylindrical 'casing carrying the 24,is threaded a thermostatic element ,27;

Lock Inut28isprovidedftoX,the position l`r 'ofthef t'hermojstaticelement inthe end of; the ,Y cylinde'rNor fehaniber 27. Surrounding L. substantially reef sides of Vthis thermostatio`k is arv chamber 9 communicating through a regulatingvalve 30 with the cleaning-fluid* l supply pipe 26- Threaded'in the other end'k igofzthe chamber24 is a bushing 31 provided ,"with a passage leading to the interior 4,of

the 'chamber- 24. A :Tftting32'is Vthreaded 1 into; a lateral eXtension'29gof, the I chamber* 29 f and this fittingl is provided ,with the yT L.pas-r sage 32.. One branch of this T passage'oom-v rmunicatesVV with the chamber 29, whileg-a secQn/dvbranch of thezsame communicates with passage 33; -Bus'hing is threaded intoy the ,end of' chamber-f24-and carries an alarm yor .A other indicating Vmeanswsueh asthe whistle l275.`

Passage 3 5 relatively` smaller than .thefpafs-y i d Tv passage 32.whereby'rcleaning fluid is ad'r.l

ao'tuatelthe whistle." Therelement`27 termi-5f;`

l,when the element 27 expands, is adapted tojvf Contact with and Close the passage v33; '37Jisk an openingwhic-h is adapted-to vent thevalve" `.chamber 38 'to the atmosphre. One or more;

openings 39 in the chamber'A are provided -alarm' or whistle 25, fthis casingco'rnfmuni-- f eating through; pipey or passage `26 VwithV the/ opening of the valve for advising the oper-x- "l l.atorl ofy the passage of .cleaning fluidto' the Y. blower element. In one end of the cylinder arated therefrom .by wall ,-281 f' Y d d 'sage isprovided through the bushingflla, i Y. d

and communicates withthe third'branch of l leading from the atmosphere 'tothe annular spaceO-around the thermostatic element 27; '150 -ings 39. f l

To facilitate assembly is extended 'downwardly as illustrated' inV Figure 3 of -the'udrawing, so that the bushing 31e-may, during the Y'assembling operation, be, '.temporarily positioned below its normal poV f sition Aasshown inrFigure 3 ofthe drawing.

Thuswith" the bushing 3l threadedgdown-l i wardly tothe position shown in dotted lines Y f in the drawing'and `with''thelbushing-34 ree moved, thelit-ting 32 may be rotated to thread f the-same intorthe extension 29. Afterv the i fitting. 32 has been correctly positioned withe inthe cylinder 24, the"l bushing 31' maybe v s. threaded 1 'upwardly' untilVA the;` ,topj of lthe same abuts one end'-oflthe tting`3 2V after Y `which the :bushing v'3st i ina-y -be threaded vinto position and into abutting engagement with'V um @atrendrenaming 32.- v

In operation-the `attendant actuates Vthe V`wheel lrto causev rotation of the blower ele,-V ment l andthe simultanenous unseating ofV thelv'alveflll to supplyV thev cleaning fluid lthrough'the goose-neck l3`to the dischargey nozzles 12.' .A portion fof thecleaning uid rwill flowv 'through-the passage V26 and pass- Y throughlvalve 30 'and into thechamber29 at a Arate.determijned"bythesettingiof the valve 80.'. From.-.chamber 29, thejcleaning jfluid lwillpass throughpassagef32, passage 33 and f 'f thence to the atmosphere throughthe passage Y SZffTh'e smallA amountofy cleaning." fluid which would pass through thepassage 35 to the whistle would notbe at a sumcientpre'svsure to operate thewhistle. This 'resultis v, accomplished by reasonfof thev'relative sizes of the'p'assages 33. an'df, the former passage# being `ofconsiderably :greater capacity than *the latter; A o Y .y is heated b y-the fluid Vvsrhich substantially sur-l rounds it in the chamber 29, itwill expand and Asfthel therrnostatieV element 27 the conefshape valve 36wil'lseat'onv bush- V ingl", thus closing the openingtherein to the passage '33, V '.hiszlwi'll shut 'olf .the Yfluid. "to Y thex'valveV chamber 43 8 and passage 7 and will cause thevfullv pressure lof. the fluid to pass. through passage tofthe lwhistle 25 'soa'sto v,cause the same tojsourid. `v The sound o offthe whistlewill preferably .continue until `theclea'ningiuid is shutoff the system. The

function'of the openingsBQf'isto allow air B6 into the space 41:0.vr By adj ustingthevalvel and the closures l1,tlie Whistle may be v,caused to function after anyl desired length of time following the actuation of theV valve! to circulate around the .thermostatic l element .Y B'Y'to prevent undue heating thereof. These openings also serve as a means of. escape for` any fluid 'whicho-might leak'fpastl the Vvalve after a 'predetermined interval.

V14V which supplies the cleaningrfluid to" the v i. i blower element; l

By 'reason of the foregoing apparatus thel boiler cleaner may be .operatedf-or a prede-ol termined length of time without sounding of the, whistle, Should the operator leave the:

boiler .cleanerwith the cleaning fluid'turned Y.

on', the arrangementfwill automatically sound acting arrangement is also-useful in advis;

fing the attendant of-.the expirati'onfof'a-predetermined period ofv operati-on of boiler Y The" delay cleaner, thus eiiiciently operating the same. Y,

closed means forv preventing leakage around thevalve'stem. Attached to the vvalve'stem 22ais a valve vdisc 42 held inplac'e'by a 'nut 43@ Thisfrvalve adapted to seatwon the i Y valveseat 44 las Vwill bereadil'yunderstood.A o I e5' A recessed bushing 45de threadedinto the Referring to Figures l and 5', we have'dis ,p

upper wall 46 of thervalve chamber orsteam v W pot l5. A Ysuitable opening is provided;in-V Vthe bushing 45 permitting movementrrofithe .v ,valvestem22a. l? is a: plate inountedina notch 48 .locatedV adjacent thefouterjendgof Y Vthe 'valve'st'emf `Filvledlyattached tofthis plate Vandt'o'th'e bottom ofthe recessed bush#V -inox is a flexible element 491m the nature; of.y abellows or sylphon; The flexible bellows 749 will readily' contract and expand with the movement of the valvestem maintaining at all times a fluid tight j-ointbetween theivalve may act on fan extension of the plate 4:7 for Y stem andv valve chamber.' .A spring l50 may 1i Vbe, mounted exteriorilyof .theelement i9 and f' Y normally holding the valve closed'.r Smalle l,openings '5I may be provided 'in the bottom.

of the lbushing4:5 for preventing'the forma? tionof avacuum which might render the operationV of the va-lvel stem( difficult.

AInthemodifiedconstruction shown in FigureLthe arrangementl'of parts is substan-v Y tiallyzthe sameas Yshown in Figure Lf In this lfigure, however, the' plate 47a is `adapted ito'be held inthe notch d8aA of the valveI stemY y 1122* by reason' of a'nut152:` AlsojinjthisconeV 1.1 'Y Qstructi'on, ani additionalbearing 53,l is.l

vided for guiding the valvestem'22".V Y' Referring *Y to r Figurey '6 we .have shownV a .e boilerV cleaner Vconstructed to admit cleaning.;- vfluid successively in 4increasing amounts or e in stages to the blower head.' For. accoiiiff 'f o plishing this result we'haveprovidedk afvalve': 'y i formed ofa plurality of elements which are: -jaodaptedvto function in stages asaforesaid.V it VInthis figure the steam potrorva'lv'e casing, j orl-chamber l5 is ,providedfwith' a valves'eat Alfprovided with the opening V55V affording Q passageof cleaning-.Huidv 56 YaA 'seat mem'` through the seat 54 for engagement withfthe seat memberj'Gf These bolts are relatively-*2s fixed to the seat member56 by reason of the 1 nuts 60. The seat member y56 is also formed i l with an openingv 57 andan yoffset Vportion 58 l providing a sliding bearing for the valve stem 22C. The Aportion 58 is also provided with a plurality of openings lfwhich communivcate with Athe opening 57 for conducting cleaning fluid therefrom. 1 The seat member 56 is adapted to perform the double function of a valve and valve seat since it regulates the j passage of cleaning iiuid through the opening 55 and also forms a seat for a valve l62 which is secured to the lower end 4of the valve stem 22. 63 is a projection carried by the-valve stem for engagement with the portion 58 for moving the member 56 as described heref inafter.

In operation when the valve stem 22c is depressed by the trigger 19 the valve 62 is unseated from the member 56 thereby causingfcleaning fluidto pass through the openings 57 and 61 to the steam pot l5. As the valve stem is so-depressed through the action of trigger 19, the projection 63 of the valve stem comes into contact withthe portion 58 of the seat member 56 causing the latter member in turn, to be unseated vfrom the seat 54 thereby providing additional opening VYfor 4the passage of cleaning fluidfrom the i supply line into the steampot. During the movement of .the seat 56 away from the seat 54, thesprings 57 are compressed. Asthe valve stem rises during the valve closing periodthe springs 57 firstreturn the member 56 to its seat 54 and as ksoon as the projection 63 passes beyond the pointof contact with the portion 58 the valve62 is drawn to its seat to closethe opening 57 by reason ofthe spring 64.' By'varyirg the relative proportions of the valves and cleaning fluid passages, or

openings, any desired ratio of cleaning fluid'.y

flow during the two stages of the valve opening may be obtained. It is also obvious that the time intervals of the twosta'ges may bear 'jny'desired relation.

ing. the actuation of the valve for advising the operator of the passage ofcleaningflui'd to said nozzle, and means forregulatlng the said time interval.

2. In a boiler cleaner, ablower element pro-V vided with a nozzle adapted toedis'vc'harge cleaning fluid, means for supplying a` cleaning fluid to said nozzle, a'valve controlling the supply of cleaning fluid, means for actun ating said valve, an alarm, and means auto# matically responsive to the passage of cleaning fluid a predetermined length of time. folto the said nozzle.y

lowing. the:actuationV ofisaidfvalv'e for-.SmildeV ing-saidy alarm, and means preventing sound-3' ing oftliealarm during'thessaid time. interval f following theactuation ofthe' valvel, fj. 1. .f 3. j fInv'a boiler@ cleaner, a "blowerffelement provided with a nozzle f adapted tot discharge cleaning fluid, means for@ supplying: a clean-y ingl fluid. to said'v nozzle, avalve controlling the supply of cleaning fluid, meansfor actu-V ating said! valve, analarm, :andi means a'i'ito` maticallyresponsive to `.the passage of.' cleaning fluid a predetermined .length of time fol; lowing the actuation 'of said valvefor sounding said alarm, .means preventing sounding of the alarmduring'the-said ftime. interval following the` actuation "ofi the@ valve, vand f means regulably controlling the said'time interval.

4. In a boiler cleaner, a blower element pro-y videdl with a nozzle adapted to discharge cleaning fluid, means for supplying a cleaning fluid to said nozzle, a valve controlling the supply of cleaning fluid, means for actu-` ating said valve, a whistle, and means automatically responsive to the passage of clean# ing fluid a predetermined length oftimefoL lowing the actuation of said valve for supply-l Y the same, and means preventing sounding of the whistle prior to the expiration v'of' said time interval.

5. In a boiler cleaner, a provided'with a nozzle adapted to discharge cleaning fluid, means for supplying a clean-k ing uid to said nozzle, a valve controlling ing cleaning fluid to said whistle for actuatingv blower 'element the supply of cleaning Huid, means for ac-` tuating said'valve, a whistle, means automatically responsive to the passage of cleaning fluid a predetermined length of time following the actuation of said valve for supplying cleaning fluid to said whistle `for actuating the same, means preventing sounding of the whistle prior to the expiration of said time interval, and meansregulably controlling the said time interval.

6. In a boiler cleaner, a blower element provided withy a nozzle adapted to discharge cleaning fluid, means for supplying a cleaning fluid to said nozzle, a valve controlling the supply of cleaning fluid, means for actu-` ating said valve, and means automaticallyv actuated a predetermined length'of time fol- Y i lowing the actuation ofthe valve for advising the operator of the passage of cleaning Huid 7 r'Ihe combination with a blowerelement, and means for supplying a cleaning fluid to said element, of an alarm, and means operable to effect an actuation of said alarm after ythe Y cleaning fluid has .been supplied tof said elementtfor a predetermined period of time.

8. The combination with a blower element, and means for supplying a cleaning fluid toV said element, of an alarm, and means operable to effect an actuation of saidv alarm after the 13.0.1.' i

i4 Y Y Y K 1,766,231"

A f cleaning Huid has been supplied to said ele-- Y Vment for a, predetermined period of time, said` meansV including a. valve and means for fauto- Y niet-,icallyactuating the said valve.V Y n 5 Q 9. The-.combination with ablOWer element, i f' andmeans for supplying'a cleaning fluid to saidvelementf, of ana1arm,iand means oper-V i ableto effect anactuaton Aofsaid alarm after the `cleaning Huid has been supplied. to'V said lo element for a' predetermined period of time, said meansinoluding Aa, valve and a-,thermostat for. actuating the said valve. l :[n estilnon7 whereof We aXY our .signe-V tures; 'f v Vffw 1 .NORMAN L. SNOW.y

'.VALBEMv W HONYWILL, JR.

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