US242675A - Fire-extinguisher and chemical engine - Google Patents

Description

'(Mpdel.) 2 Sheets-Sheet 1.

, J. B. MOORE. l Fire Extinguisher and Chemical Engine. No. 242,675. Patented June 7,1881.

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\ J. B. MOGRB.

Fire Bxtinguisher and Chemical Engine.

No. 242,675. PatenfedJune "i, |881..

UNITED STATES PATENT OFFICE.7

JAMES B. MOORE, OF NEW ORLEANS, LOUISIANA.

FIRE-EXTINGUISHER AND CHEMICAL ENGINE.

SPECIFICATION forming part of Letters Patent No. 242,675, dated June "7, 11881. Application filed February 14,1881. (Model.)

T o all whom it may concern:

BeitknownthatLJAMESBRADNERMOORE, a citizen ofthe United States, residing at New Orleans, in the parishot' Orleans and State of Louisiana, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a specification.

This invention relates to that class of apparatus for extinguishing tires in which a portable or stationary vessel contains a chemical solution and an acid,the latter being contained in a suitable receptacle, and the union of the chemicals accomplished by fracturing the acidreceptacle to permit the acid to mingle and combine with the chemical solution in the vessel, the reaction ofthe chemicals by such union evolvingcarbonic-acid or other gas, which forcibly ejects the liquid from the vessel upon the fire to be extinguished.

The objects of lny invention are to provide an effective and simple arram ement oi' mechauism for fracturing the acid-receptacle, and to liberate the acid at a point-remote fromthe mouth of the acid-receptacle, and within the chemical solution at a point near the upper portion of the extinguisher-vessel, whereby the union ofthe chemicals can be instantaneously effected with ease and convenience. These objects I accomplish by the mechanism illustrated in the accompanying drawings, in whichl j Figure l is a vertical central sectional view of the invention applied to an ordinary portable re-extingnisher; Fig. 2, a vertical sectional view on the line x of Fig. l. Fig. 3 represents a detached perspective view of my improved devices for supporting the acid-receptacle; and for fracturing the same when required.

The letter A indicates a screw-threaded ring orhead, which is adapted to the screw-threaded mouth B of the vessel C, and is furnished with handles D, by which to rotate it for connecting and disconnecting the same? The ring or head is swiveled on a circular hub, a, of the stationary plate b, and is conned in place by a nut, c. Y

To the under side of the stationary plate b is attached a stirrup, consisting of two parallel bars or frames,`E E, connected at their lower ends by an open ring, F, which constitutes the support for the acid-receptacle. The bars or frames E E are slotted vertically, as at G, the slots extending from end to end of the same, and serving to receive and guide the ends ot' a cross-head, H, through the center of which passes the threaded end of a stem, I, the latter extending through the plate b and ring or head A, and having at its outer end a suitable handle, J, by which the screw can be manipulated to rotate the screw-stem and slide the cross-head vertically.

'Io the ends of the crosshead are attached vertical rods K K, which rest within and are guided in their sliding movements by the slots G of the stirrup, and project beyond the lower end thereof, the lower extended portions of the rod being connected by a bar, L, which is provided at irs center with an angular pointed projection or lug, M, which is adapted to rise through the opening in the ring F, and constitutes a fracturing device which is adapted to advance toward the bottom of the acid-receptacle for breaking or rupturin g the same, as hereinafter explained.

At a point below the cross-head El the bars or frames E are connected by 'a rigid. and station ary crossbar,N, provided on its under side with a depending hub, O, having at its lower edge a projecting ange, d, and on this hub is arranged a sleeve, P, having an inward-projectin g flange, e, to retain it in place. A spiral or other sprin g, f, is arranged within the sleeve, above its liange e, this spring acting on the cross-bar N and iange of the sleeve to throw the latter downward, such construction permitting the sleeve to yield upward to admit the mouth of the acid-receptacle within.

In operation the acid-receptacle R is placed with its bottom resting on the ring-support F, and the sleeve P is pressed upward to permit the mouth of the receptacle to pass under it, after which the sleeve is caused to press down over the mouth of the bottle by means of the spring f, thereby securely confining the receptacle in place. When it is desired to fracture the acid-receptacle to permit the union of the chemicals the stem I is rotated to elevate the cross-head H, which draws up the rods Kand the projection or lug M, causing the point ot' the latter to impinge against the central portion of the bottom ofthe receptacle and force IOO the latter upward until the limit ot' elasticity ofthe bottle is reached, when the receptacle will be effectively fractured, the point of departure of the fracture always commencing at the bottom of the receptacle. This provides for the liberation of the acid at a point remote from the mouth ot' the acid-receptacle, and within thel chemical solution at a point near the upper portion ot' the vessel, thereby effecting the instantaneous union and thorough mingling and combination of the chemicals and the prompt evolution of the gas.

Although I have shown and described the fracturingdevice as carried and guided against the bottom of the acid-receptacle by means of rods arranged to move in'vertical slots in the stirrup, I do not wish to conne myself to such arrangement, as the parts could be interchan ged. For instance, the support for the receptacle could be suspended by a single rod or rods, and the rod or rods carrying the fracturing device be arranged at the sides of the saine.

The acid-receptacle is of glass or other suitable material Which can be fractured by the action ot' the fracturing device.

l. In a chemical tire-extinguisher, the combination, with a stationary support for the acid-receptacle suspended from the top portion of the extinguisher-vessel, of a movable fracturing device arranged beneath the lower end of the said receptacle and connected with devices controllable from the exterior of the extinguisher-vessel, for imparting an upward drawing action to the fracturing device to break the bottom of the acid-receptacle and liberate the acid at a point near the upper portion of the extinguisher-vessel, substantially as described.

2. The combination, with a stationary support for an acid-receptacle, of vertically-sliding rods provided at their lower ends with an attached i'racturing device arranged beneath the said support and connected at their upper ends with devices controllable from the eXterior 4ot the extinguisher-vessel, for imparting an upward sliding movement to the rods, substantially as described.

3. Tile combination, with a support for the acid-receptacle, ot'guided vertical rods, acrosshead connected with the upper ends thereof, a screw-threaded stem for. sliding the crosshead, and a fractnring device connected with the lower ends ot' said lrods and adapted to advance toward the bottom of the acid receptacles by the action of the screw-threaded stem, substantially as described.

4. The combination, With a support for the acid-receptacle, ot' two sliding rods connected by a cross-head which is moved by a screwthreaded stem, and provided at their lower ends with a bar, to which is lixed an angular projection adapted to advance toward the bottom ot' the acid-receptacle by the action of 65 the screw-threaded stem, substantially as described.

JAMES BRADNER MDORE.

Witnesses z F. SANFORD, PAUL SAURS.

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