US929377A - Boiler-flue cleaner. - Google Patents

Description

B. A. BELAND &'J. P. DOWNS. BOILER PLUB CLEANER.

` APPLICATION FILED DEO. 16, 1908. 929,377 Patented July 27, 1909.

2 SHEETS-SHEET 1.

Illlll y B. A. BELAND L J. P. DOWNS.

BOILER FLUE CLEANER. APPLICATION FILED 131110.16, 190s.

929,377. Patented July 27, 1909.-

2 SHEETS-SHEET 2- 4o and 3, between which is located a central To all whom it may concern:

UNITED STATES PATENT oEEIoE.

BENJAMIN lA. BELAND .AND JAMES P.. DowNS, or SPRINGFIELD, MIs'souEI;

vBOILER-FLUE CLEANER.

Specification of Letters Patent.

Patented July 27, 1909.

-Be itknown that we, BENJAMINA. BE-

,LAND and JAMES P. DOWNS, citizens of the United States, residin at Springfield, in the county of Greene and tate of Missouri, have invented certain new ,and'useful Improvements in Boiler-Flue Cleaners, of which the following is a specification.

Our invention relatesto boiler flue cleaners, adapted more especially, for cleaning soot and fine coal-dustfrom locomotive boiler flues, and theobject .thereof is. to providea` device formed to support itself when in operation,` and simply constructed in order that all parts thereof may be readily accessible for the purpose of repair. g l

In the accompanying drawings, illustrating our'invention, wherein like numerals. are v inlety pipe, illustrating the connection of the operating lever thereto.

.y vertical sectional view through a portion of the device showniin Fig. 2 taken at right angles thereto, and on the line 4-4 of Fig.. n5,. Fig. 5 istJ similar view of a portion 'of Fig. 2, illustratingthe valve open. Fig. 6 is a central longitudinal sectional view through the -nozzle and its pipe, and, Fig. 7 is `a transverse sectional view of our improved device,

` and that portion shown'in Fig. -5'. Y In the practical embodiment of our invention, wevprovide a flue cleaner adapted to the 1 use of steam, air, or water, and comprising a .body portion 1, embodying in its length, longitudmally' arranged tubular extensions 2 tubular portion-4. iThe-inner ends of the 'y vtubular extensions 2 and. 3 areprovided with lar socket m the endr ofthe nozzle-head '8,' having a central circular projection 9,' adapt- I openings -5 and 6, respectivelyf opposite to one. another and communicating With the exterlor of the central tubular.' ortion 4, said ltubular extension 3.,`being in t e form of an internally threaded nipple' for the reception of the threaded end of a nozzle pipe 7,

provided upon its opposite'end with a circular enlargement to -Interfit the semi-clrcued to .enterthe ilue tobe cleaned, and provided with a longitudinal bore 10 communil cating with the end of the 'pipe 7 andwith Fig. 4 is a central j The and with a circular edged flange 13, concentrically surroundingits projection 9 in s aced relation to provide for the rece tion o a resilient'4 gasket 14 to abut the en of theboilerfluewhen the projection' 9 enters therein.

The said nozzle pipe 7 may be provided with a reducing valve 15, as shown in Fig. 1, if the same is deemed necessary. The opposite tubular extension 2 is greatly enlargedin comparison 4with the aforementioned extension 3, and is in the form of a piston chamber for the reception of a piston having its rod 16 provided with a piston-head 17 upon its mner end within said chamber, andexte'nding outwardly to the outerend of the same. The said extension 2 forming the .piston chamber, is provided with an extension-1.8

rovided u on its outer endv with an external ange 19 c oselysurrounding the, piston rod 16 and providing a shoulderagamst which one end of a coil spring`20 abuts, s'aid spring surrounding said piston head 16 between the outer end of said socket tube 18 and its headed inner end 17. l

piston rod 16, extends outwardly through the outer end of the socket tube 18, and isprovided with a sharpened or pointed outer end 21 ,for en' agement with 'a suitable" su ort, when the evice has been longitudina y alined with the ue to be cleaned, and'its nozzle head projected therein, to support the) same in position, the said piston be1n r operated to securelyengage the support y the means employed to clean the ue, as will be hereinafter described.

lthreaded upon the outer -end thereof, and

The central tubular portin 4 of the I `portion 1`, is provided with a valve-holdin sleeve 22, -fitting therein, and a reduce tubular extension 23, against the innerfend of which one ,end of said sleeve 22, abu'ts. The sleeve 22V is rovided with a square bore, and is held in'p ace bya cap nut24 thread-v edly engaging the end of theptubular portion 4', 'and provided .with 'a reduced squared pncltion 25, engaging for a short distance wi the square bore of said sleeve22. The sleeve 22 is further provided with open- " ingsI 26 and 27 respectively; throughdiametrically opposite oints thereof, and com. v kmunic'ating with t e. openings .5 land' 6 los a ,surrounding the an vrounding said valve stem. Thus, when the V forcing the piston-head 17 and its rod16 outand operated by a valve stem 30 connected thereto by connecting'links 31, and extending axially through the tubular extension 23, and ,outwardly througha fluid-tight gland 32, at the end thereof.` The tubular'extension' 23, of the central tubular ortion 4, is pro et extension 33,

vided with an angularJ threaded for the reception of the inlet pipe 34,`leading from a lsuitable source to convey A steam, air, water or other cleansing liquids thereto. The valve pieces 28 are controlled 'in-,each movement to close, or open connection between the inlet 33 and the tubular extensions 2 and 3, by means f a lever 35, pivotally connected at its end'to the outer end, of said.v valve stem, and centrally pivotally mounted upon a oke arm-36, partially ar inlet extension 33", and having its end secured thereto by bolts '37, as shownparticularly in Fig. 3. Thus, @by rocking the free endof the lever 35, to-

ward the inlet (pipe 34, the valve stem v will be reciprocate outwardly, to draw the valve of their sleeve 22, while upon re' ease of said lever, said valve will be moved in the o posite direction, tothe position shown in 1 2 by means of a coil spring 38, extending e,- tween' the'sam'e and the gland 32 and survalve'pieces 28 are moved away from the openings 27 of the sleeve 22, thecleansing o fluid -isadmitted therebetween and through said openings and into the tubular extensions 2.and 3 of the bodyv 1; The body 1 having irst been placed in alinement with the tube to be cleaned, and in' such position that the l nozzle-head-extension 9 enters therein, and a suitable support having been placed slightly 'to the'rear of the shar ened end 21, ofthe iston-h'ead 16, the va ve-isopened as.y just escribed, and the cleansing fluid at once enters both the nozzle pipe7, and the p isto'nchamber formed by the tubular',extens1 on 2,

wardly until thepointed end 21 thereof, irmly engages the su portn placed to receive the same, thus rigi y maintaining thesde- Vice in its alined osition between theaend ofthe lue'being c eaned, and the said support. It will be understood that lthe cleans- .1n fluid' admitted withinv the nozzle ipe 7, `be jutted through the nozzle-hea open# ings 10 andll. Y i

In order thatthe device may beremoved from the flue after the ysame has been/cleaned, it is necessary that the pressure within the tubular extension-2, bereduced'to atmos- 6x5 -phere, to allow the spring 20 to'fo'rce the pieces 28 away from the openin s 26'an`d 27- pistonehead inwardly and withdraw. the Y sharpened end 21 ofthe rod '16, away from .f its sup ort. .To accom lish this, we provide "the valive sleeve 22 with) a plurality of trans-l terse openings39, extending through its wall and communicating with openings 40 leading through the wall of the central tubular portion 4. We also provide the valve pieces 28 with 'cut out portions 41 in their outer faces, adapted to register and open communication between .the said openin s 39, and the openings 26 and 27 of the va ve sleeve v22, when sald valve pieces 28 are in t e closed position as shown in Fig. 2, to allow the pressure withi in the tubular extension 2, and within the l nozzle p'pe and the clean flue, to escape to l the atmosphere.

Having described our inv ntion, we claim:

' 1. In 'a. lue cleaer of te character described, a body portion for longitudinal 85 alinement'with'the ue to be cleaned, a nozzle carried at one end thereof, andfcommunicating therewith, a longitudinally movable piston mounted in the opposite endl ofsaidY ody `and having a pointed rod extending outwardly therefrom, means communicatin' with said body between said nozzle and sai piston, to convey a cleansing li uid thereto, means to cut 'oil communlcatlon between said'body and saidnozzle and piston, and 95 means foroperatingsaid last named means for reducingthe pressure upon said piston and said nozzle when the communication therewith is cut olf, lsubstantially as described. l' A 2. In. a flue cleanerb of the character described,the combination of a\ body portion 'comiirisi a central valve casing "provided with an i et for the reception'of the cleansingfluid, and having concentric tubular ex; tensions, from, opposite sides thereof, provided withj-openlngs at their inner ends, communicating` therewith, anozzle secured Lto oneof said extensions, a piston mounted within the other of, said extensions, andpro-f vided with a rod extending outwardlythrough the outer end thereof', for* engagement with a suitable supprt, said valve casing ha -openlngsthrough its wall, and a valve slid a 'ly mounted within sai? casing to close said communlcation opening and provided with eut out portionsto register between said communicating openings and said casing o emngs, whenthe same areclosed, to reduce t e pressure within said 4extensionssub stantially` asdescribed.

`In testirnofiy whereof'we aiiix our'signaturesirfpresenceof witnesses.V

' i BENJAMIN A. BELAND.

, if 'JAMES r. DoWNs.

Witne lses A e I (LQVN MAT-RE,

/'W; HQWEBSTER CHAMBERS,

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