US447308A

US447308A - Steam-boiler

Info

Publication number: US447308A
Authority: US
Publication date: 1891-03-03
Anticipated expiration: 1908-03-03

Description

(No Model.) G.F.GABLAND.

STEAM BOILBR.

No. 447,308. Patented Mar. 3, 1891.

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CHARLES F. GARLAND, OF CHELSEA, ASSIGNOR OF ONE-HALF TO JOHN J.

QUIGLEY, OF EAS'I` BOSTON, MASSACHUSETTS.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent N o. 447,308, dated March 3,'1891. Application filed December 26, 1889. Serial No. 334,966. (No model.)

To all whom it may concern..-

Be it known that I, CHARLES F. GARLAND, of Chelsea, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Steam-Boiler Cleaners, of which the following is a specification.

My invention has for its object the provision of such improvements in steam-boilers as that in blowing offthe oil and sediment that may have settled upon the crown-sheet may be drawn off and discharged through the blow-off pipe.

My invention also has for its object the provision of improved means for lling boilers, whereby the action of the inflowing water may operate to clean the crown-sheet.

My invention also has for its object the provision of improved means for washing the crown-sheet after the boiler has been blown oft'.

' My invention also has for its object the provision of improved means for aiding the circulation of water in the boiler.

This invention will first be fully described in connection with the accompanying drawings, forming a part of this specification, and then particularly pointed out in the claims.

Of the drawings, Figure 1 is a side elevation (parts being represented as broken out and parts being shown in section) of an upright boiler provided with my improvements. Fig. 2 is a vertical sectional view of a portion of a horizontal boiler, showing a Way in which my improvements may be applied thereto.

The same letters of reference designate the same parts or features, as the case may be, in both of the views.

In the drawings, having reference to Fig. l,

a designates the fire-box, b the4 crown-sheet, c the lues, and d the water-leg, of a steamgenerating boiler.

e is a vertically-arranged blow-off pipe eX- tending from near the upper surface of the crown-sheet b, and from a cent-ral point with respect to the same, through the boiler, (in the present instance through the top, though it might be through the side,) where it communicates by means of a branch f with a supply and discharge pipe g, the latter extending down to a pointwhere it communicates with the blow-off pipe 7n, connected with the water-leg CZ. o.' is a surface blow-off pipe connected with the boiler and communicating with the j is a valve 1n pipegabove the point where the branch f connects with the same. 7o is a valve in the said pipe below the said point7 and Z m are valves in the blow-off pipe h on opposite sides of the point at which the pipe g communicates therewith.

In the use of my invention as it is illustrated in Fig. 1, should it be desired to blow off the boiler, all of the valves exceptingvalve mare closed, when the valve in surface blow-off piper.' is opened, so as to blow off the floating matter on the water, as usual. The valve in pipee'inay then be closed and valve kopened, which will result in the blowing off ofthe water through blow-off pipe e, drawing it from the top of the crown-sheet b and carrying with it any foreign matter or sediment of any kind that may have settled upon the crownsheet. When the water has been blown off down to the crown-sheet b, valve 7c may be closed and valveZ opened and the balance of the water blown 01T from the water-leg d. Valve j may'now be opened and water fed to the boiler through the pipes f and e, so as to thoroughly wash the yupper surface of crownsheet t, such wash-water being allowed to run off through pipe 7L.

In filling the boiler, valves 7c, Z, and m may be closed andgvalve 7' opened and the water supplied' through pipes fand e, so that the action of the iniiowing water may be einployed as far as possible to wash and clean the uppersnrface of the crown-sheet, the particles of greater specific gravity than water being washed into the water-leg d, where they can be readily blown off through blow-off pipe h. After the boiler has been filled and the same is being used in the generation of steam, valves j m may be closed and valves 7o Z opened, and circulation of water in the boiler assisted by the How of the same from the boiler through the pipes e f h g, and to start such circulation after the, said pi es become iilled the valve in'surface blow-o pipez' may be opened for a short time.

If desired, the blow-off pipe e may be pro- Ioo vided with branehesn, ext-ending to different points on the crown-sheet l), as shown in Fig. 2, so that the surface of the crown sheet may be operated upon as thoroughly as possible.

It is obvious that other changes may be made in the form and arrangement of parts comprising the invention without departing from the nature or spirit thereof.

Having explained the nature of my invention and described a way of constructing and using the same, I declare that what I claim 1s- 1. The combination, with a boiler provided with a crown-sheet, of the vertically-arran ged blow-off and supply pipe e, extending from the exterior to and terminating with an open end or month near or over the upper surface of said crown-sheet, a supply and discharge pipe g, to which said pipe e is connected, and the valves j and 7u, located, respectively, above and below the connection between said pipes c and g, substantially as and for the purpose set forth.

2. A boiler provided with a vertically-arranged blow-oft` and supply pipe e, extending from the exterior to and terminating with an open end near the upper surface of the crownsheet7 an independent surface blow-oft, and an independent water-leg blow-off, as set; forth.

3. The combination, with aboiler provided with a crown-sheet and an independent water-leg, of the vertically-arranged blow-oft' and supply pipe c, extending from the exterior to and terminating near the upper surface of said crown-sheet, a vertically-disposed supply and discharge pipe g, the branch pipe f, connecting said pipe e with said pipe g, and the blow-off pipe h, connecting said water-leg with said pipe g, together with the series of Valves arranged in said pipes g and h, substantially as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 21st day oi' December, A. D. 1889.

CHARLES F. GARLAND. XVitneSSes:

ARTHUR W. CnossLEY, A. D. HARRISON.