US913963A - Boiler-flue cleaner. - Google Patents

Description

s. H.. LIMBERT.- BOKILIJR PLUE GLEANER. 4, APPLICATION FILED SEPT. 3.- 190B. 1

913,963. Patented Mar. 2, 1909.-

UNITED STATES PATENT OFFICE.

V'SAMUEL HrLIMBERT, OF SPRINGFIELD, OI-IIO, ASSIGNOR O11' ONE-HALF 'lO CHARLES E. BRENING, OF SPRINGFIELD, OHIO.

BOILER-FLUE CLEANER.

Specification of Letters Patent.

y Patented March 2, 1909` Application filed September 3, 1908. Serial No. 451,467.

To all whom it may concern:

Be it known that I, SAMUEL H. LIMBERT, a citizen of the United States, residing at .S ringeld, in the county oi' Clark and State ci) Ohio, have invented certain new and useful Improvements in Boiler-Fine Cleaners, of which the following is a specification, rc1- erence being had therein to the acconnianying drawings.

My invention relates to boiler flue cleaners, and more particularly to that type of flue cleaner employing a jet oi steam which is discharged into the flue.

The object of the invention is to provide a cleaner of 4this character which will be so Vmounted relatively `to the boiler i'lues that it can be moved into position to discharge into. any of said ilues and can be adjusted toward and away from the flues which will bc rovided with means 'for preventing the burning of thatportion of the same lying within the furnace walls; which will be provided with means forl rotating the saine which will be provided with means for drawing oli' the waters of condensation and preventing thoir discharge into the ilues; and further, to provide such a device which will be simple and comparatively inexpensive in construction but will be possessed oi a high 30.

degree o1" efficiency.

With these objects in view my inventionl consists in certain novel features and in certain parts 'and combinations to .be hereinafter-described, and then more particularly pointed out in the claims.

In the accompanying drawing is a vertical sectional view through one end of a boiler furnace and a boiler, showing my invention applied thereto.

In this drawing I have illustrated the prel ferred form of my invention and have'shown the same as comprising a spray pipe l rotatably and slidably mounted in the rear wall 2 of a boiler furnace and preferably journaled in boxes Binounted in the opposite ends of the bearing aperture in the wall '2. The inner end of the pipe 1 extends at substantially right angles thereto and transversely to the boiler to form a spray head or discharge nozzle 4. This discharge nozzle has its end closed, as shown at 6, and is provided in the side adjacent to the boiler with a series of apertures 5 which are so arranged .therein that, as the discharge nozzle is moved across' apertures will be brought into alinement with each of the i'lues. The spray pipe 1 is preferably journale'd in the wall 2 in a position substantially midway between the opposite sides o'l the boiler and with its longitudinal axis in substantially the same horizontal plane with the upper wall oi the uppermost of the ilues in said boiler. Thus, by moving the pipe 1 through an arc of 180 degrees,'the discharge nozzle will be moved across all that portion of the boiler in which the lilucs are mounted and some one or more oi the'1 apertures 5 will have been brought into alinement with each of the ilues. I have here shown the apertures 5 as so arranged in the discharge nozzle that one aperture is in alinement with each flue, but it will be obvious that any suitable number and arrangement of apertures may be employed. Suitable means, such as an adjustable collar 7, are provided 'for limiting the inward movement oi the pipe 1 so that the discharge nozzle may be supported in the desired relation4 to the boiler l'lues.

Steam is preferably supplied to the spray as here shown, is ol'an exterior diameter slightly less than the interior diameter of the spray pipe 1 and has itsadjacent end inserted in the outer end oflthat pipe. The spray pipe 1 is provided with a suitable stufling box 9 to close the joint between the saine and the supply pi e 8 and enable the spray pipe 'to be moved ongitudinally of the sup ly pipe. The supply pipe is 4provided wit suitable controlling means, such -as a -valve 10, and has, at a point beyond and adjacent to this valve, a suitable drain cock, by means of which the water of condensation accumulating above "the valve 10 may be drawn otf, thus avoiding the discharge of the same into the ilues when the valve 10 is;l

first opened.. In the present instance, the

controlling valve 10 ijs shown in the form of a globe valve and that portion of the valve casing opposite lthe controlling handle' is provided with a reinforced ,-ortion l1 hav'- ing an outlet aperture 412 winch is cont-rolled by a valve 13, oi' any suitable character. supply pipe 8 is also provided, at a point between thc controlling valve '10 and the spray pile l, with 'a check valve adapted to be he d in its closed position by the passage of steam through the su )ply pipe 8, and to automaticallyopen, w en the steam has The been cut off from t-hat pipe, to admit air to the pipe and to discharge nozzle 4, the passage of air through the discharge nozzle being sufficient to eifeetually prevent the burning of that nozzle and that portion of the pipe 1 which lies Within the furnace Walls. And further, the-passage of the air through the discharge nozzle 4 serves to facilitate the draft through the furnace. In the present instance, this check valve is shown as consisting of a valve casing 14 connected to the supply pipe 8 by means of a T-joint 1.5 and having its upper end provided with an inlet 16 controlled by'a valve 17 having a stem 1S guided in a s ider 19 arranged .Within the casing 14. hen the valve 10 is open and the steam is passing through the supply pipe, a sufficient amount of steam will pass into the casing 14 to force the valve 17 against-its seat and hold the same in its closed position. As soon as the valve `l() has been closed, however, to cut od'the steam from the supply pipe, the Weight `of the valve 17 will "cause the same to automatically open, thus admitting air to the supply ipe and to the spray pipe for the purpose escribed. Suitable means .are also provliied for rotating the spray pipe 1 about its ongitudinal axis,

and, in the resent instance, this means comprises a andle 20 connected to the outer end of'the spray pipe 1 at a point between tlie adjustable collar 7 and the stuifing box 9. This handle 2() is preferably secured to the spray pipe A1 by means of a clamp 21 adapted to engage the pipe and to be readily secured thereto in the desired position. The handle 20 is preferably secured to the pipe 1 in a position substantially parallel with the discharge nozzle 4. Thus, the positionjof the handle 20 on the exterior of the furnace Wall will indicate the position of the discharge nozzle 4 relatively to the boiler flues.

. The operation of the device will be readily understood from the foregoing. description and it Will be apparent that, by rotating the s ray pipe about its longitudinal axis, the

ischarge nozzle may be brought into such a position relatively to any of the flues inthe ciler as to cause one or more separate and distinct 3ets of steam to be discharged into .that flue; that I have provided this spray pipe with adjustable means for limiting its inward movement to brin the same into thedesired position relative y to the ends of the ilues; and also that I have provided the device With means for rotating the saine, this rotating means being suchl as to indicate the position of the nozzle. Further, it Will be apparent that I have provided means for preventing the discharge nozzle from burning When the saine is not in use; that I have provided means for drawing oli' the Waters of condensation from the supply pipe and avoiding the discharge of the saine into the flues; that the apparatus as a Whole is of a simple and easily operated character and is of a comparatively inexpensive construction, the several parts being, for the inost part, of ordinary construction and requiring few parts of special construction; and that, by reason of -its construction and its ca )abilityof being brought into position to reac all of the lues in the boiler and, the manner in Which the steam is discharged into the boiler, the device possesses a highdegree'of efiicieney.

I Wish it to be understood that I dofnot desire to be limitedvto the details of construction shown and deseribed,ri`or obvious modifications will occur to a person skilled in the art.

Having thus fully described my invention,

what I claim as new and -desire to secure by Letters Patent, is 1. In a boiler fluecleaner of the character described, a furnace Wall, a boiler mounted Within the same,'a spray pipe provided with a discharge nozzle extending transversely to said boiler, said spray pipe being rotatably and slidably mounted in said furnace Wall,

whereby said discharge nozzle may be ro-l tated about an axis extending longitudinally to said boiler' and may be moved toward and awa-y from said boiler, a supply pipe extending into the outer end of said s ray pipe, an( means for controlling the through said supply pipe.

2. In a boiler flue cleaner of the character described, a furnace Wall, a boiler mounted WithinV the same, bearings mounted in said furnace wall, a spray pipe journaled in said bearings, a discharge nozzle carried by said spray pipe and extending transversely to said boiler and having discharge apertures therein, said spray y pipe being slidably mounted in said bearings, whereby the discharge nozzle may be moved transversely to said boiler and may be moved toward and away from the end thereof, a supply pipe extending into thc outer end of said spray pipe, and means for controlling the passage of steam through said-.supply pipe.

3. In a boiler flue cleaner of the character described, the combination, with a furnace wall, and a boiler mounted Within the same, of a spray pipe rotatably and slidably mounted iu said Wall and extending beyond the outer side thereof, a discharge nozzle carried by the inner end of said spray pipe and having apertures adapted to be brought into alinenient with the flues of-said boiler, a collar adj ustably mounted on. that portion of said spray pipe extending beyond the outer side of said wall, and a supply pipe extending into the outer end of said spray pipe.v

l ow of steam iso `for admitting air to said nozzle when the steam has been cut off.

5. In a boiler flue cleaner of the character described, the combination, With a furnace Wall, a boiler' mounted within the same, a spray pipe journaled in said wall, a discharge nozzle carried thereby and adapted to dischar e into the flues of said boiler, and a supp y pipe connected to said spray pipe, of means for cutting off the How of steam through said supply pipe, and automatically operated means for admitting air to said spray pipe when the steam has been cut olf from said supply pipe.

6. Iii a boiler flue cleaner of the character described, the combination, with a furnace Wall, a boiler mounted Within the same, a spra -pipe journaled in said wall, a discharge Anozz e carried thereby and. adapted to discharge into the flues of said boiler, means fior moving said spray pipe toward and away from said boiler, and a steam supply pipe connected to said spray pipe, of means for cutting off the 'flow of steam through said supply pipe, and automatically operated means for admitting air to said spray pipe when the steam has been cutI oil from said su l i e.

i;i)'iripapboilei; flue cleaner of the character described, the combination, with a furnace Wall, a boiler mounted Within the same, a spray pipe journaled in said Wall and having a discharge nozzle adapted to discharge into the flues of said boiler, moans for moving said spray pipe toward and away froni said boiler, and a supply pipe connected tosaid 'spray pipe, of means for controlling the 'flow' of steam through said supply pipe, a valve mounted in said supply 'pipe between said controlling means and said spray pipe and adapted to be closed by the passage ofsteam through said suppl)v pipe and to automatically open when said steam has been cut off from said supply pipe. i

8. In a boiler flue cleaner of the character .(lescribed, the combination, with a furnace ed in said furnace wall and having its outer end extending beyond said wall, a discharge nozzle carried by the inner end of said spray pipe and adapted to discharge into the llues of said boiler, a stuffing box carried by the outer end of said spray pipe, a supply pipe ext-ending through said stuffing box into said spray pipe, means for controlling the flow of steam through said supply pipe, and means for moving said spray pipe about a longitudinal axis and for moving the same longitudinally. y

9. ln a boiler flue cleaner of the character described, the combination, with a furnace Wall, and a boiler mounted within the same, of 'a spray pipe rotatably and slidably mounted in said furnace wall, a discharge nozzle carried by the inner end of'said spray 'pipe extending transversely to said boiler and having apertures adapted to be moved into alinement with the iiues of said boiler, a supply pipe having its end inserted in the outer end of said spray pipe, a handle for rotating said spray pipe, avalve for controlling the flow of steam through said supply-pipe, and means connected to said supply'pipe between said valve and said spray pipe for admitting air thereto when said valve has been closed to cut off the steam from said supply pipe.

y 10. In a boiler flue cleaner of the character described, the combination, with a furnace wall', a boiler mounted within said Wall, a spray pipe rotatably mounted in said furnace wall and having a discharge nozzle extending transversely to said boiler, a supply pipe connected to said spray pipe, a cut-oil valve inserted in said supply pipe, and a valve-coiitrolled outlet for said supply pipe on that side of said cut-olf valve removed from said spray pipe, and an automatic air-admission valve connected to said supply pipe between said cut-olf valve and said spray pipe.

In testimony whereof, Iaflix my signature in presence of two Witnesses.

SAMUEL H. LIHBERT.

Witnesses:

A. C. LINK, Haiuiiiir L. HAMMAKER.

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