US539016A - Fire-extinguisher - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

G W OOON FIRE EXTINGUISHER;

No. 539,016. Patented May 7, 1895.

wi iwie-om I f f UNITED STATES PATENT OFFICE.

GUSTAVUS W. COON, OF WASHINGTON DISTRICT OF COLUMBIA, ASSIGNOR" OF ONE-HALF TO WILLIAM D. YINGLING, OF REISTERSTOWN, MARYLAND.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 539,016, dated May 7, 1895.

Application filed June 29, 1 894.

To all whom it may concern..- Be it known that I, GUSTAVUS W. CooN,1a citizen of the United States, residing at Washington, in the District of Columbia, have in- 5 vented certain new and useful Improvements in Fire-Extinguishers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to' which it appertains to make and use the same.

My present invention relates to an improvement in chemical fire-extinguishing apparatus.

The object is to provide an improved sim plified and more efficient chemical-holder for carrying the acids or other chemicals that are used to mix with the contents of the tank, and a holder which will discharge its contents at the proper time in such a manner as to insure a thorough intermixture thereof with the tank contents.

The invention therefore consists essentially in a chemical holder supported by an extensible or telescopic reversible frame, and also in certain details in the construction, arrangement and combination of parts, substantially as will be hereinafter described and claimed.

In the accompanying drawings, illustrating my invention, Figure l is a side elevation of my improved fire-extinguisher. Fig. 2 is a vertical section of the same. Fig. 3 is an enlargeddetail side elevation of the chemicalholder removed from the tank. Fig. 4 is a sectional View taken at right angles to Fig. 3 and showing the same parts- Fig. 5 is an enlarged detail view of the outlet-valve.

Like letters of reference designate corre sponding parts in the several'figures of the drawings. l

A denotes a tank or receptacle of the usual; kind employed in chemical fire-extinguishers, being made strong and adapted to contain an alkaline or other solution with which an acid or chemical compound isto come into contact for producing the fire-extinguishing solution. This tank A maybe of any desired size and shape'and constructed in any desired manner. It is provided with a suitable strap R whereby it may be suspended upon the back 50 of the user, or otherwise supported for use;

Serial No. 516,075. (No model.)

This plug carries suspended beneath it inside of the tank A, the bottle containing the chemicals that are to be mixed at the proper time with the alkaline solution to produce the required mixture. H denotes this bottle. It is made in any desired manner and is pref- .erably of glass. It may be of any material and formed of any size. I will now explain the mechanism by which itis supported from the plug Band by which, when released from its normal position, it accomplishes an automatic discharge of its contents into the inte rior of the tank A.

The plug or stopper Bis provided with handles b b by means of which it is screwed into 0 its seat or removed therefrom.

F F denote vertical rods which are freely adjustable or movable up and down through packing glands in the plug B as clearly shown in Fig. 4. The upper ends of the rods F are connected together by a cross-head D, there being nuts f on the rods F above and below cross-head D, as shown. The lower ends of rods F are preferably screwed into the bearing pieces F, which are perforated to receive the horizontal journals or trunnions g g on the telescopic bottle-supporting frame. These trunnions may have a knife-edge form, as shown at g if desired.

Themechanism for lifting the cross-head D 8 and rods F aud sustaining them in their elevated position consists of the levers O O which are pivoted at their lower ends to the horizontal disk 0, that fits down into the recess B in the upper face of plug B and rests on the flat bottom of said recess when the levers O are lifted toward their vertical position. These levers connect by the links 0 with the central portion of the cross-beam D, said links being pivoted to both the levers O 5 and the head D. In Fig. 3 the levers are shown in their vertical position in full lines and they are held in this position by the loose ring or link E that is slipped over their upper ends. In dotted lines in this view, Fig. 3, the [OD levers C are shown in their inclined position, and when so placed the disk 0 will still remain in the recess B while the rods F will drop to their lowermost position.

The bottle H is inclosed within a skeleton .frame consisting of as few parts as possible, and having, say, a ring I, riveted around the neck of the bottle so as to leave the mouth clear and free, side strips J J running longi tudinally along the side of the bottle to its bottom, and a strap K, see Fig. 3, underneath the bottom, which is securely riveted to the ends of the side strips J. This skeleton frame is provided at the bottom of the bottle with lateral trunnions 1a 7a.

The bottle and its inclosing and supporting skeleton frame are situated telescopically within another skeleton frame consisting of the upper circular band G, the lower band G and the connecting strips'G all these being integral, and the strips G extending below the band G, as far as may be desirable. These strips G2 are provided with longitudinal slots 9, running vertically from end to end thereof and in these slots are the trunnions 7a which are carried at the bottom of the bottle frame. The band G or some other suitable part of this skeleton frame is furnished with trunnions g, already mentioned,

which have their bearings at the lower ends of the rods F. These trunnions are situated below the center of gravity of the frame so that the latter cannot maintain the position shown in Fig. 3, unless held so by some engagement with its upper end which if released will cause it to immediately reverse its position and take the position shown in dotted lines in that figure.

When the telescopic outer frame is in its normal position, the bottle-frame will be supported therein by means of the trunnions 7r resting in the lower ends of the slots g, while at the same time the rods F will be forced upward as far as possible by the top leverage mechanism, and the upper end of the bottle is situated within the recess B in the under side of the plug B. See Fig. 4. The opening of the leverage mechanism by removing link IE will however cause the rods F F to drop, carrying with them in their descent the bottle and its telescoping frames, the upper end of the bottle being released from the recess B. As soon as the bottle is so released, the frame G G G2 will immediately reverse itself upon its trunnions g. This will eject the bottle H therefrom, which will continue to fall until its journals have run the full length of the slots g, and the bottle has entirely dropped outsidegof frameGG' G See Fig. 2. Duringits fall it will be discharging its chemical contents into tank A and causing a violent combination thereof which will produce a great increase of pressure within tank A. This pressure must now have an outlet as the solution is ready to discharge.

Inside of the tank A is a vertical tube L which enters through the top of the tank and this tube is integral at its lower end with a tube Z of less diameter, there being a valveseat at the junction of the two, on which a valve M is seated. This valve is carried by a stem m which extends upward through a packing gland P in the upper end of tube L. The delivery hose Q is coupled to a nozzle on the tube L. A bent lever N is pivoted to the upper end of the tube L, and this lever carries at its outer end a pivoted link 0, one end of which is adapted to enter acup-seat in the upper end of valve-stem m, while the other end has a lug 0 thereon which is adapted to be engaged by a chain c that is attached to the link E, all as shown in Fig. 2. This arrangement of parts serves to lock the valve M upon its seat. Then the link E is removed from the levers C however,the link 0 and lover N will at the same time be disengaged from the stem m and the valve M will be free to lift from its seat. Therefore when the acid unites with the solution within the tank A by the intermixture of the chemicals, the pressure thereby caused willlift the valve M, and the mixture will escape through the delivery tube.

It will be observed that the valve M is seated at some distance below the water level. This is for the purpose of making a tight seal at the point where the valve is located preventing any possibility of evaporation and making absolutely a tight or waterjoint.

Although I have only shown two telescoping frames for the chemical receptacle yet their number may easily bemultiplied.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is

1. In a fire extinguisher, the combination wi h the tank, of a removable stopper, the chemical holder and a telescopic frame for reversibly supporting said holder upon the stopper.

2. In a fire extinguisher, the combination with the tank of aremovable stopper, a chemical holder, a series of two or more telescoping and extensible frames therefor which are supportable from the stopper below their center of gravity so as to be automatically reversible.

3. In a fire extinguisher, in combination with the tank a chemical holder and a telescopic frame for reversibly supporting said holder said frame consisting of a bottle support and a frame inclosing it telescopically and to which it is pivoted, substantially as described.

4. In a fire extinguisher, the combination with the tank, of a chemical holder, verticallyadjustable guide-rods, a leverage-mechanism for supporting and lifting said rods and a telescopic frame for the said holder, said frame being pivotally hung upon the rods and beingextensible to discharge the holder.

5. In a fire extinguisher, the combination of the tank, the stopper therefor, the verticallyadjustable rods passing through the stopper, a cross-head connecting them, a leverage mechanism for lifting the said head, the chemical holder, and the telescopic extensible frame therefor which is pivotally hung upon the said rods, substantially as described.

6. In a fire extinguisher, the combination with the tank, the screWpluginserted in the end thereof and having handles, the chemical holder and the extensible frame for suspending the holder from said plug, said frame con= sisting of two or more intersliding parts substantially as described.

7. In a fire extinguisher, the combination with the tank, the screw plug in the end thereof, the vertical rods passing through the plug, the chemical holder, a telescopic frame therefor which is pivoted to said rods, substantially as described.

8. In a fire extinguisher, the combination with the tank, the stopper therein, the adjustable rods passing through said stopper and having their upper ends connected by a cross-head, the chemical holder, a telescoping frame pivoted to the lower ends of the rods, and the bottle frame pivoted in longitudinal slots in the other frame, substantially as described.

9. The combination with the tank, of the. outlet pipe, the valve therein having a stem, the pivoted lever having a pivoted link engaging a cup-seat in the upper end of said stem and a chain for engaging and holding the link.

10. The combination of the tank, the stopper therein, the chemical holder, the longitudinally-slotted frame supported by the stopper, and the bottle frame having lateral trunnions engaging the slotted frame, substantially. as described.

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

. GUSTAVUS W. OOON.

Witnesses:

WILLIAM D. YINGLING, GEO. L. CLARK.

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