US310028A - Fourth to - Google Patents

Description

(N0 Model.)

M. S'. GABELL. l MEANS EOE CLEANING ELUES 0E STEAM BoILEEs.

No. 310,028. I Patented Dec. 30, 1884,

W I TJV ESSES @KQ/@M N Nrrn rares MILTON S. CABELL, OF QUINGY. ILLINOIS, ASSIGNOR OF ONE-FOURTH TO SAMUEL G. GABELL, OF VASHINGTON, D. C.

lVlEANS'FO CLEANING FLLlES OF STEAlVl-BOlLRS.

SPECIFICATION forming part of Letters Patent No. 310,028, dated December 30, 1884.

Application filed July 5, 188.4. A(No model.)

boilers in which a jet orjets of steam are pror jected into and through the lues from a nozzle or tip inserted in the ends of the iiues.

In devices of this kind as ordinarily constructed the steam -injecting tip or nozzle Vis inserted into the endof a flue, and a collar or shoulder back of the nozzle or tip operates to completely close the end of the flue. This closure of the end of the iiue causes the steam projected into the iue from the nozzle to form a vacuum or partial vacuum between the shoulder or collar and the point where the projected blast of steam strikes the sides of the line, and the flue at that point is consequently not properly cleaned.

In my invention I construct the collar or shoulder which is back of the nozzle or tip of conical or tapering form and adapt it to partially enter the end of the tlue, and I provide it with a series of exterior corrugations, or I perforate it, so as to form channels for the passage of air into the due around the nozzle.

By this construction the formation of avacuum is prevented, and the air drawn in in the form of jets is caused to clean that part of the flue which ordinarily remains untouched. I also preferably provide the nozzlecr tip with a series of discharge-passages arranged spirally, so that the steam as it emerges from the tip is given a spiral whirling motion, which increases greatly the effectiveness of the device;

,45 and Ialso, by preference, arrange spirally the air-passages in the collar or shoulder, so that the same whirling motion will be given the inilowing air-currents.

In the accompanying drawings, Figure l represents a side view of one form of my fluecleaner; Fi g. 2, an end view of the same.; Fig.

3, a longitudinal sectional view taken on the line 90 x, Fig. 2. Fig. 4 is a view of a moditication of the invention; Figs. 5 and 6,views showing different modes of connecting the liexible steam supply pipe.

Similar letters of 'reference in the several gures indicate like parts.

The letter A indicates the j flexible pipe through which the steam employed is conducted. As shown in Figs. l and 3, this pipe has connections to a T shaped coupling, B, with the tubular stem O. Upon the stem G is arranged a tip or nozzle, D, having in its end a series of spirally-arranged passages, d, which lead into the tubular stem C, as shown in Fig. 3, and having also an outwardly-projecting tapering collar or enlargement, D', provided with the lseries of spirally-arranged exterior corrugations, cZ, as shown in Fig. l, or with a series of peri'orations, d2,.as shown in Fig. et.

The coupling has connected to it a suitable handle, E, by means of whichY the device can be conveniently manipulated.

In operation the tube Ais connected to the boiler to be cleaned, or any other source of steam-supply, and the tip or nozzle is inserted into the ilues one after another, the flange or collar D being of such size as to prevent the 8o nozzle or tip being entirely pushed into the line, as shown in Fig. 1. The steamjas it is delivered from the extremity of the tip or nozzle, is blown along in a spiral whirling course through the due, the air entering the air channels or apertures rushing along with it, and effectually cleaning the whole flue from end to end. The air -inlets are preferably properly arranged sol as to deliver the air at the same angle at which the steam is projected 9o from the tip.

By curving or tapering the perforated dange the device is made self-centering when the extremity of the nozzle is thrust into the end of the flue.

Instead of employing the T -shaped coupling B, the ilexible steam-supply pipe may be connected directly to the hollow stem C, as shown in Figa', and a handle connected directlyto the said hollow stem; or, in lieu of roo the last -named construction, that shown i Fig. 6 may be employed.

I claim as niy invention- 1. In a flue cleaner, a tip or nozzle having a steanrdischarge orifice or orifices, and provided back of the point of discharge with a projection constructed to prevent the insertion of the tip too far Within the flue, but yet admit the passage of air into the ue around the tip, substantially asV described.

2. In a flue cleaner, the tip or nozzle provided with a steam discharge, and having a perforated or corrugated collar or Iiange back of the point of steanrdischarge, substantially as described.

3. A flue cleaner having a passage or passages for discharging steam and a tapering perforated or corrugated flange or collar, substantially as described.

4. In a flue-cleaner, the combination of the tip or nozzle having the spirally-arranged steam-discharge orifices and the flange or collar having the spirally-arranged air-inlet channels, substantially as described.

5. The combination of a tubular stern or handle and the flexible Isteam-supply pipe connected thereto, and the tip or nozzle having the spirally-arranged steam-discharge channels, and the tapering perforated or corrugated flange or collar, substantially as described.

MILTON S. CABELL.

Vitnesses:

J. H. BAsTEE'r, J. O. BROADY.

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