US791351A - Flue-plug. - Google Patents

Description

PATENTED MAYso, 1905..`

A P. J. MALLOY.

PLUE PLUG'. APPLICATION FILED MAB.'I1, 1905.

ATTORNEYS UNITED STATES Patented May 30, 1905.

PATENT OFFICE.

PATRICK J. MALLOY, OF SHREVEPOR'I, LOUISIANA, ASSIGNOR OF ONE- FOURTH TO JOHN MCWILLIAMS FORD, SI-IREVEPORI, LOUISIANA.

.FLuE-PLUG..

SPECIFICATION forming' part ofv Letters Patent No. 791,351, dated May 30, 190.5.

Applicationled March 11,1905. Serial No. 249,664.

To a/ZZ whom t may concern:

Be it known that I, PATRICK J. MALLOY, a

citizen of the United States, and a resident of lowing is a specification.

. tact with the flue-sheet over the bead and My invention is an improvementv in fluevplugs, and has for an object to provide a plug for closing a Hue when desired and having means for covering .theV end of the Hue so in case of bad leaks it will cover the entire bead `0f the iiue and if the plug leaks the water will be tu med-downward along the liuc-sheet instead of spraying outover the fire; and the' lInvention conslsts 1n certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is an end 'elevation of my improved plug. Fig. 2 is a side view thereof in place in a flue-sheet. Fig. 3 is a view of the opposite end of the plug from that shown in Fig. l, and Fig. 4 is a sectional view of the plug in place in aflue.

lThe iue A is appliedV to the sheet B with a flanged end or bead a upon vthe outer side ofV the Hue-sheet. The plug has the tapered body portion O to t in the fiue and which'may be driven firmly into place, the face-plate` D to fit against the iue and provided in its inner face with a groove E,.'receiving.the bead a, and having at its lower side an outlet or nozzle e, opening alongside the ue-sheet B at the -bottom of the plug, and at its outer end the plug has a socket F to receive the end of an extension-rod or plugging-bar by which the plug may be inserted in the end of a leaky fl'ue through the furnace-door. The body of the plug is tapered or bell-shaped, so it can be forced firmly into position and will t dierlent-sized fiues within a reasonable range. `It

forming a joint against the flue-sheet, the

plug being so placed that the outlet or nozzle c lis at the bottom, so that any leakage not stopped by the action of the tapered plug will pass into the groove E and be discharged against the flue-sheet.

The plug when applied to one fine will not interfere with any of theother liues, can be easily inserted with a Hue-bar, presents but little metal outside 'of the Hue-sheet to get redhot and burn ofi or to cause much expansion of the flue-sheet, and can be used in any kind of boilers without danger to the boiler.

As best shown in Fig. 4, the groove E is undercut, forming an inwardly-projecting iiange E', which overhangsthe groove E and forms a gutter or trough leading to the outlet c, as will 'be understood from the drawings.

Having thus describedmy invention, whatI claim as' new, and desire to secure by Letters Patent is- 1. The combination with a flue-sheet and a flue therein and ianged or beaded outside the flue-sheet, of a`fiue-plug having a tapered body portion driven into the lend of the ue, a face-plate or. flange overlapping the fluesheet surrounding the beaded end of the ue and grooved in its inner face. to tit over the bead and to form a channel for leakage and having a discharge outlet or nozzle, the plug being providedl in its outer end with a socket for a iue-bar in applying the plug substantially as set forth.

2. A flue-plug comprising the body adapted to be driven in aiiue and a face-plate or flange at the outer end of the body portion and having an undercut groove in its inner face to iange grooved in its inner face to form av channel for leakage and having an outlet or nozzleleading from said channel, substantially tending around the face-plate and an outlet to as set forth. I which said gutter discharges, substantially :is

5. A Hue-plug having a body portion to be Set forth.

driven into a. flue and provided with a faee- PATRICK J. MALLOY. 5 plate grooved in its inner face and having said Witnesses:

groove undercut providing an inWardly-prol J. C. PUGH,

jeeting flange forming a gutter or trough eX- l J. K. VALKER.

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