US655559A - Boiler washout device. - Google Patents

Description

No. 655,559. Patented Aug. 7, |900. B. F. KEENEY.

BUILER WASHOUT DEVICE.

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N0. 655,559. Patented Aug. 7,1900. B. F. KEENEY. BDILEB WASHUUT DEVICE.

(Application med Mu. 16, 1900.)

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(No Model.)

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No. 655.559. Patented Aug. 7, |900.

B. F. KE BOILEH WASH VICE.

(Application led 900.)

(No Model.)

3 Sheets-Shut 3 BENJAMIN F. KEENEY, OF W'ATERTOWN, SOUTH DAKOTA, ASSIGNOR OF ONE-HALF TO ANTHONY L. SHORE, OF MINNEAPOLIS, MINNESOTA.

BOILER WASHOUT DEVICE.

SPECIFICATION forming part of Letters Patent No. 655,559, dated August 7, 1900.

Application iled March 16, 1900. Serial No. 8,893. (No model.)

My invention has for its object to provide- 'an improved device for washing out sediment from liquid containing receptacles, and is especiallydesign ed for use in connection with steam-boilers to remove the sediment deposited therein from thejvater.

To the above ends the invention consists of the novel devices and combinations of devices hereinafter described, and defined'in theV claims.

The invention is illustrated in the accom-` panying drawings, wherein like characters indicate like parts throughout the several views.

Figure l is a view in side elevation with some parts broken away, showing the boiler and nre-box of a locomotive or other portable engine, the same having applied thereto one of my improved washout devices. Fig. 2 is a plan View ywith some parts sectioned and others shown in diagram of the washout device shown in Fig. l. Fig. 3 is an enlarged view in vertical section on the line :c3 x3 of Fig. 2. Fig. 4 is a transverse section on the line so* r4 of Fig. 8. Fig. 5 is a transverse section on the line of Fig. 1. Fig. 6 is a plan view showing a modified form of the washout device. Fig. 7 is a view in side elevation with some parts broken away, showing the parts illustrated in Fig. 6. Fig. 8 shows a boiler in end elevation with some parts broken away and others removed and illustrating the washoutdevice as applied within a catch-trough which is suspended below the lines; and Fig. 9 is a detail view in side ,elevation, showing the inner end, section and scraper of the washout-tube employed with the construction illustrated in Fig. 8.

The numeral l indicates the body of the boiler, and the numeral 2 the fire-box, of a loseveral hand-holes that` are normally closed by hand-hole covers 3, held by the bolt and bracket t 5, or otherwise. The sediment is deposited in a heavy pasty mass, and it has been found difficult to wash the same from the boiler by a iiushing action. By my invent-ion I readily remove the sediment by the use of a discharge-tube which projects into the boiler in the vicinity of the sediment and is provided with one or more inlet-openings, together with means for shifting the point of opening into the tube over dierent points in the'vicinity of the sediment, so that the outflowing current of water, which of course carries the sediment with it, will be caused to continually change its course or to iiow from diiferent points. The tube is also provided with agitating blades or tianges for stirring up the packed sediment, so that it will be more readily carried by thewater.

The invention in its preferred form is illustratedyin Figs. l to 3, inclusive, wherein the outlet-tube is made up of two telescoped tubular sections or members a and b. The outer tube a extends along the bottom of the water-leg formed at the side of the fire-box 2, and its forward end projects through and works in a stuffing-box 6, applied to the forward lower portion of the water-leg section of the boiler. Said tube a is thus mounted with freedom for a rotary movement and also Y with freedom fora limited longitudinal movement, its outward movement being Alimited by a collar cl. on the said member a. At its outer end the tubular member a is provided vwith a stuffing-box a2, through 4which 'the outer end of the interior member or tube b projects. Just inward of the stuffing-box k2 the member a is provided with a projecting disk or flange 0.3, with which the downturned end of a spring -keeper c, secured on the f for opening and closing the same.

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boiler, normally engages to hold the tubular member ct in the longitudinal position. (lndicated in Fig. l.) At its extreme outer end the inner member or tube l) is formed with a head b and with a hand-wheel b2. The head b' has a spiral cam-ange b3, which extends in a plane perpendicular to its axis, except at the cam-sections b4, where the flange or thread advances abruptly. Secured on the disk or liange a3 of the outer tube or member a is a forwardly-projecting bracket a4, provided at its outer end with depending fingers or lugs a5, that embrace the cam-flange h3 of the head h'. For a purpose which will hereinafter appear the bracket a4 is preferably provided with a pointer or linger a6, which cooperates with markings h5 on the peripheral portion ot' the hand-wheell. From the outer end of the tubular member h a pipe fextends to some suitable point of exhaust, and this pipe is preferably provided with a stop-cock Vithin the boiler the inner tubular memberb is provided with a plurality of perforations or inlet-passages h6 bl, which in the construction illustrated are located on a line extending parallel to the axis of the said tube. The outer tube a is provided with a series of perforations or inlet-openings a7 and as, that extend on a line running spirally around the said tube a. The said perforations a7 a8 extend in a circumferential direction, each ninety degrees in advance of the other, and the perforations a7 and h6 are equally spaced apart and normally stand longitudinally in line with each other. The perforations h7 and the perforations as are also equally spaced, but stand normally out of longitudinal line with each other. This relative arrangement of the perforationsis bestindicated in Fig. 2,wherein the outer tube a is shown as if split and laid out flat. Vith this construction as the outer tube a is rotated step by step one-quarter turn at each step the perforations b and aT will be successively brought into registration from the inner end of the tube toward the forward end of the same, and the perforations hl and as being set longitudinally out of line with each other will all be kept closed. Itis evident that only a limited number ot' the perforations al can be opened in succession without causing two or more of the same to be opened at one time. Hence it is that the shifting device, as shown in the form of the cam-flange b3, is employed. This cam-liange by the next movement after the last perforation al has been opened, acting on the bracket a, 'moves the outer tube a longitudinally far enough to bring the perforations hl and as into longitudinal line with each other, and this same movement moves the perforations a? and h6 out of longitudinal line with each other. Hence under the succeeding steps of movement of the tube ct in the direction indicated by the arrow marked on Fig. 4 the perforations hl and as will be brought into registration in succession, while the perforations aT and Z)6 will be held closed under all rotary positions of the said tube. In the construction illustrated the tube a is given but two longitudinal adjustments under the action of the camilange h3; but it will of course be understood that the above principleof construction may be carried out to any desired extent. Of course the reverse rotation of the outer tube a will bring into registration the cooperating perforations of the two tubes in reverse order. It will also be understood that the construction may be reversed by mounting the inner instead of the outer tube for rotary movevment and providing the same with the spirally-arranged series of perforations.

The two tubes may together be given a slight longit-udinal movement throughthe stufling-box G, but for this purpose the discharge-pipe f should either be flexible or provided with a exible joint. On the exterior of the tube a is a spirally-arranged series of U -shapedflanges a9, that embracevone each of the per- Y forations a7 a8. Vhen the two tubes are moved together longitudinally or when the outer tube a is rotated, these flangs ai stir up the pasty sediment, so that it will be taken up by the water, and the said flanges further serve to direct the flow of the water to the particular perforation which happens to be open.

The modification illustrated in Figs. 6 and 7 comprises a single tube or pipe g, which would be used in lieu oi' the compound tube above described. This tube is open at its inner end and is provided thereat with a U- shaped scraper or agitating-llange g', which Y projects rearward of the said open end. The tube g may or may not have a rotary movement, but it must have a long longitudinal movement through the gland or bearing g2, in which it works. At its outer end said tubeg is provided with a stop-cock gs for opening and closing the same, and from its extreme outer end a flexible tube or hose would usually be extended to a suitable point of discharge. Vith this form of washout-tube the said tube is moved longitudinally, while the valve g3 is open to clear the boiler of the sediment, and the scraper g' will under such movements 'stir up the sediment, so that it will be readily carried by the water which runs into the said tube. By'moving the tube endwise the open inner end of the same is moved over dierent points in the vicinity of the sediment, so that the sediment will all be washed from the boiler. The pressure from within the boiler will tend to force the tube g outward; but it will require considerable force to move the said tube inward against such pressure. Hence I preferably employ a windlass, such as shown in Figs. 6 and 7, for

forcing the tube inward. This windlass, as`

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and provided with a pair of sheaves g and a crank g7.

The sheaves g6 are connected by cords g8 to a transverse bar gg, secured to the outer end of the tube g. To lock the tube g in its innermost position, it is provided with a pin glo, which bya slight rotation of said tube may be engaged or disengaged with a latch g11 on the bearing gi.

The construction illustrated in Figs. 8 and 9 is that which would usually be employed in stationary boilers of cylindrical form with horizontally-disposed tubes. The numeral 7 indicates such a boiler, having the tubes 8 and, as shown, provided at one end with a manhole 9, which in Fig. 8 is shown as opened. In this construction I suspend by means of suitable hangers k, engageable at their upper ends with certain of the tubes 8,-

a long catch-trough k, which underlies the lower and central tubes. Under the boiling action within the boiler the sediment will be carried upward from the bottom of the boiler and will be deposited within the trough k. I-Ience the washout-tube is in this case applied at the bottom of the said trough 7o. The washout-tube which is shown as applied to this trough 7e' corresponds to the washouttubes g illustrated in Figs. 6 and 7, the only variation being in the form of the agitator or scraper carried at the inner open end of the said tube, which in this construction instead of being U-shaped is of triangular form, as indicated at g1?, and is supported from the tube by a strap Q13.

The washout devices above described are intended to be applied to the boilers as permanent parts thereof, which may be used whenever necessary or desirable to clear the boiler of sediment.

The construction illustrated in Figs. I to 5, inclusive, has the advantage over the other construction that it may be applied to locomotive-boilers and boilers of other construction, many ot which have valve-gear mechanism and other devices which would prevent the washout-tube from being given such an extended longitudinal movement as is required to operate the washout device illustrated in Figs. 6 and 7.

From the foregoing description it is evident that my invention is capable of a large range of modification. It will also be understood that the washout device will be serviceable for cleaning out sediment for various other liquid-containing receptacles and hence that I desire to claim the device for any use to which it may be put.

The word boiler is used in the claims in a generic sense and is intended to include all liquid-containin g receptacles.

What I claim, and desire to secure by Letters Pat-ent of the United States, is as follows:

l. A boiler washout device, comprising a tube projecting into the boiler and provided with one or more inlet-openings, an agitatingblade in the vicinity of each opening, and means for shifting to different points within the boiler the opening into the said tube, substantially as described.

2. A boiler washout device, comprising a discharge-tube projecting into the boiler and Vprovided with one or more inlet-openings, each opening having an agitating-ilange in its vicinity, and the said tube having a movement Within the boiler to agitate the sediment and vary the point of opening into said tube,

substantially as described.

3. A boiler washout device, comprising a pair of telescoped tubes having longitudinally-spaced perforations adapted to be sucsessively brought into registration by rotation of one of said tubes, substantially as described.

et. A boiler washout device, comprising a pair of telescoped tubes having longitudinally-spaced perforations adapted to be successively brought into registration by rotation of one of said tubes, and agitating-flanges in the vicinity of the openings in the outer tube, substantially as described.

5. A boiler washout device, comprising a pair of telescoped tubes having longitudinally alined perforations adapted to be brought succesively into registration by rotation of one of said tubes, and having other perforations adapted to be longitudinally alined by a slight longitudinal movement of one of the said tubes and then to be brought successively into registration by rotation of one of the said tubes, substantially as described.

6. A boiler washout device, comprising a pair of telescoped tubes having longitudinally alined perforations adapted `to be brought successively into registration by rotation of one of said tubes, and having other perforations adapted to be longitudinally alined by a slight longitudinal movement of one of said tubes and then to be successively brought into registration by rotation of one of said tubes, and a cam-flange carried by one of said tubes and acting upon the other tube to produce the said longitudinal movement, substantially as described.

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7. A boiler washout device, comprising the tubes d and b rotatable one upon the other, said tube a having the perforations a7 and as and said tube Z) having the perforations be and 57, disposed and operating as described, the cam-flange b3 b4 on said tube and the projection d4 c5 carried by said tube af, substantially as described.

8. A boiler washout device, comprising the telescoped perforations a and b, having perforations adapted to be registered by rotation of said tube a, and the U-shaped flanges a9 embracing the perforations in said outer tube a, substantially as described. A

In testimonyv whereof I affix my signature in presence of two witnesses.

BENJAMIN F. KEENEY.

Witnesses:

M. M. MoGRonv, F. D. MERCHANT.

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