US885662A - Detachable boiler-flue. - Google Patents

Description

No, 885,662. PATENTEDAPR'ZI, 1908.

A. J. BOWDEN.

DETAGHABLE BOILER PLUE; APPLICATION FILED MAY 31, 1907.

M/TMSSSRS arm-wrae UNITED STATES PATENT orrron.

ALEXANDER J. 'BOWDEN, or MINNEA OLIS; MINNESOTA, ASSIGNOR or ONE-HALF TO iiMos B.. ROBBINS,- OF ELROY, WISCONSIN.

. 1'; m ness,nonnative.

To all'whom it may con-am:

Be it'known that "I, ALEXANDER: JlBowof which thefollowing is a specification.

My inventionielates to detachable boiler" hues, and the object ofthe invention is to provide means for securing the flue in the flue venient removal of the flue whenever desired. A further object is to provide means whereby the ends of the flue will be protected fromrthe heat in the fire box.

The invention consists generally in'various '-constructions, and combinations, all as here.- lnafterdescribed and particularly pointed out in the claims.

.In'the accompanying drawings, forming.

part of this specification, Figure 1 is; a view partially-in section, and partiallyin plan illustrating thefapplication of my invention to a boiler flue and flue sheet. Fig.- 2 is asimilar view illustratin a modification in the man'- ner of uniting tire flue with-the end section thereof. Fig.3 is a similar view showing another modification. I l i In the drawing, 2 represents the flue sheets havingflue seats 3 and 4 tapered slightly in .30

opposite. directions, that is each seat flares from the inner toward the outer surface of theflue sheet. I 1 v 5 represents a flue having the end-extension's or sections 6 and 7. These extensions are rovided with sockets 8 in which the ends of tlie flue are brazed or-welded by an electric or other suitable process. l

. The end section 6 is ta ered from its inner toward its outer end, and the section 7 is ta pered from its outer toward its inner end. A sleeve 9, tapered from its outer towardits inner end, is ada ted to slip in between the end section 6 an the flue seat 3, a suitable packing rin sleeve and the se at. At the other end of the flue a similar packin ring is provided be- 10 being arranged between the tween the tapered en sect1on'7 and the seat 4. The section 7 will 'be driven into its seat in the flue sheet and then the sleeve9 insert ed at the other end of the flue and while it is being driven in, a tool may be held a ainst the section 7 to prevent the flue from ein'g driven out at that end. When the sleeve 9 has been firmly driven to its seat a tight joint be formed around the end ofthe flue sheets which permit the ready and con-f Specification of LettersPatent. ;l atente'd Apii1.21,1908 ,Applicationiiled-llayiil,1907. Se'rial-No.'376,625.

l without the use of threads. Whenever it is desired to remove a flu'e' a suitable tool is applied. to the en'd'of the section 6 and theflue 'mav be driven'ou't of the sheets and readily 'reic'nove'd from the boiler.

In 2 I have illustrated anend section 11' having'an, annular recess or groovelZ in its innerien'd torecei've the end 0t the'flue.

In other respectsit corresponds to the end sections above described.

, In Fig. 3 another modified form of end section 13 is shown in which the recesses and grooves are omitted and merely a square flat end provided, against which the end of the flue abuts and is welded or'brazed. ,These end sections are made of heaviermaterial andby using .them I am-able to protect the ends of the fire box.

, One of the particular advantages of this invention is its ease of application to the boiler ue from the intense heat of'the' and the facility with which a wornout flue' may be removed. I

I claim as my invention:

1. In a boiler, the combination, with the flue sheets spaced apart and in parallel relation with one another and having flue seats extending therethrough from one side to the other, said seats being tapered from the outer toward the inner surfaces of said sheets,

a flue extending between said sheets and having end sections fitting within the openings in said sheets, the section at the fire box end of said flue being tapered from its outer end toward its inner end to fit the flue seat at that endand having a suitable packing ring, and the section at the opposite end of said fluebeing ta ered from its inner endtoward its outer en whereby both sleeves and the flue ma be driven in the same direction out of the He sheets, and an oppositelytapered sleeve inclosing said last named section and fitting between it and its flue seat and having a suitable packing ring, substantially as described.

. 2. In a boiler, the combination, with the flue sheets'spaced apart and in parallel relation with one another and having flue seats extending therethrough from one side to the I other, saidseats being tapered from the outer toward the inner surfaces of said sheets, a

flue provided between said sheets, tapered sections mounted on the ends of said flue, said sections beingtapered in the same direction and fitting within the openings in said sheets,

a sleeve tapered from its outertoward its inner end fitting between one of said sections and its'flue seat and adapted when tightened toform a tight jointbetween the flue and seat,- andsaid flue being removable by applyinga tool to the end of one of said sections and through from oneside to the other,- said seats being tapered from the outer toward the inner surfaces of said sheets, of-a flue having tapered ends, the taper at the firebox'end v 15 of saidflue being toward the middle of the flue and-the taper at theopposite end of the fliie beingtoward its outer end, whereby a tool maybe appliedto drive it throughthe fiuesheets into the'firebox; acking rings interposed between the ends 0? I the seats thereof in the flue sheets and atapere'd sleeve fitting between the flue :andits packingring at the-end thereof opposite from the fire box; substantially asdescribed.

In witness whereof, I have hereunto set'my 25 I hand this. 28th day of May 1907,

. ALEXANDER .J. BOWD-EN. Witnesses:

RICHARD PAUL, J. B. ERA

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