Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS518258 A
Publication typeGrant
Publication dateApr 17, 1894
Filing dateDec 20, 1893
Publication numberUS 518258 A, US 518258A, US-A-518258, US518258 A, US518258A
InventorsAntoine Louis Eugene Lechartier
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
The national
US 518258 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.) 2 Sheets-Sheet 1.-


No. 518,258. Pa/Lented Apr. l7, 1894.

n1: NATIONAL umwumma WMPANY.


2 Sheets-Sheet 2.

(No Model.)


No. 518,258. Patented Apr. 17, 1894 "1's NATIONAL LITHOGRAPNING COMPANY.





SPECIFICATION forming part of Letters Patent No. 518,258, dated April 17, 1894.

Application filed December 20, 1893. Serial No. 494,226..

T all whom it may concern:

Be it known that I, ANTOINE LOUIS EUGENE LECHARTIER, insurance agent, of 97 Rue de la Pompe, Paris,-in the Republic of France, have invented a new and Improved Fire-Extinguishing Apparatus, (for which I have obtained Letters Patent of France .for fifteen years, No. 230,493, dated May 31, 1893;) and I do hereby declare that the following is'a full and exact description thereof, reference being made to the accompanying drawings.

My invention relates to a fire extinguishing apparatus, which is of extremely simple construction, the mechanical operation of which is sure, and which is easily charged. And indeed, my apparatus only comprises a vessel of cylindrical or other suitable form to hold watera glass reservoir for containing acid; a tube extending down to the bottom of the said vessel and passing through astuffing box fixed at the top and in the axis of the aforesaid vessel, the said tube extending outside the vessel; and, lastly, a kind of, piston Working in the stuifing box and adapted to close the passage in the tube, and capable when forced inward of breaking the glass acid reservoir placed beneath it, and at the same time opening the tube, in such a way that the apparatus is instantly put under pressure and in action; by drawing the piston outward, the communication in thetube between the branch extending to the bottom of the vessel and the atmosphere is stopped, and the operation of the apparatus ceases.

The acid reservoir is so arranged that it allows of the removal of the fragments of glass resulting from a previous operation and the subsequent insertion of a fresh charge. The. apparatus will thus last indefinitely, it being only necessary to be provided with the necessary salt and reservoirs containing reserve charges of acid, which take up but little room, in order to attain the absolute certainty of being able to combat successfully against any outbreak of fire, and even against large fires. The accompanying drawings show a specimen of my new fire extinguishing apparatus. Figure 1 is a vertical sectional view of the apparatus when charged. Fig. 2 is also a vertical sectional view of the apparatus when in (No model.) Patentedin France May 31, 1893, No. 230,493.

operation. Fig. 3 is a front view of the key, which is represented partly in section and side view in Fig. 2. Fig. 4 isa detail view of the stuffing box, with the tube which passes Fig. 7 is a detail view of the 6o essarily so. This vessel is hermetically closed at the top and bottom by the parts I) and c. In the vessel 0, is fixed the tube ff-composed of a part fextending down to the bottom I), and of a horizontal part f, both the said parts extending to a bronze piece it soldered to the top 0. The said piece hconstitutes a double stuffing box comprising a movable socket e put into the box and supported bya leather washer placed on its bottom h, of a stopper 7: screwed into the box and pressing the leather washer i onto the socket e. In the stuffing e is fitted the piston g, the rod g of which passes through the'washer z" and the stopper i beyond the said stopperi the rod receives the pusher-button or buffer g.

The socket e, which is pierced by openings 6 6 corresponding to the tubesff', has a vertical recess 6 on one'side, into which projects, one end of the tube f for the purpose of adjustment of said socket in relation to the tubes ff. In the opening e which is a continuation of the tubef, I have fitted a leather washer e against which the said piston 9 comes and presses, so as to form on this side an absolutely water-tight joint.

The piston g is pointed at the lower end, and this pointed part, when the apparatus is charged (Fig. 1), comes very near the acidreservoir d.

The acid reservoir cl is made of glass; it is 5 placed longitudinally in the vessel a, one of its ends being supported in a socket cl soldered to the inner wall of the box, the other end being in a cylindrical socket m soldered to the bottom of a stopper CF. The stopper d is screwed into a stuffingl soldered to the vessel a. A leather washer Z, put in between the edge of the stuffing Z and the lower end of the stopper d secures a perfectly watertight joint.

To prevent the glass reservoir 01 from moving, the socket m, of the stopper (1*, is provided with spring clutches m, which embrace the end of the said reservoir and prevent it from moving in any direction. On the other hand, the opposite socket 01' carries clutches d for the purpose of serving as a simple guide to the end of the reservoir when it is required to place the reservoir in the said socket d.

The screwing and unscrewing of the stopper (1 are operated by means of an annularheaded key 70, the internal diameter of which is slightly larger than the external diameter of the stopper d two recesses 01 are cut diametrically out of the milled edge of the stopper, and two teeth are reserved in the interior of the annular head of the key, so that the said teeth fit into the said recesses 61 of the stopper, thus making the said stopper and the said key integral with each other. The screwing or unscrewing can then be easily done. When the key is not in use, it can be suspended against the side of the vessel a, as shown by Fig. 2. The other extremity of the key it ends in two branches 7a which are designed for screwing and unscrewing the stopper i, of the stuffing box, the said stopper being provided with corresponding recesses, as shown by Fig. 7.

Operation: If we assume that the reservoir, filled with chlorhydric acid, for example, is put in its place, that the vessel (1. is filled with water and salts, such as bi-carbonate of soda or chloride of sodium, and that the double stuffing box is placed, with the piston g at its highest point, the apparatus will be ready for work (see Fig. 1). In this state the fire extinguishing apparatus may be shipped or kept without danger of its either running or being broken. In order to prevent accident, the piston is held in its highest position by means of a piece 9 put in and fixed between the top of the stopper '6 and the under side 9 of the pusher button or buffer g the end f of the tube f may also be covered with a suitable cap f as shown in Fig. 8 which will prevent accidental running.

To use the fire extinguishing apparatus, the piece 9 is removed as well as the cap from the tube f; a blow is given on the buffer g, whereby the acid reservoirclis broken, when immediately the chemical combination takes place, and internal pressure is carried to its highest point. Instantaneously, the extinguishing gush of water appears at the fittingf and all that has to be done is to direct it where the fire is hottest to obtain prompt and eificient results.

After the operation, the broken glass is easily removed through the opening made by unscrewing the stopper d The fire extinguishing apparatus can be placed anywhere and even suspended by a hook by means of the ring j soldered to the top of the vessel a.

I claim 1. A fire extinguishing apparatus comprising a vessel of any suitable form and dimensions containing water and salts; an acid reservoir, made of glass, placed, for instance, horizontally Within the said vessel and supported, on the one hand, bya seat or immovable socket, and, 011 the other hand, by the clutch socketof a stopper, which screws and makes a water-tight joint in the opening reserved at the top of the vessel for allowing the acid reservoir to be put in its place or replaced by another, a tube extending to the bottom of the vessel and also to the upper part of the same, where it passes through a double stufiing box, and issues from the vessel and forms a fitting, and, lastly, a double stuffing box, through which passes the hereinbefore mentioned tube, provided with a piston, which makes a water-tight joint in the said tube, and which, under the effect of an external blow, opens the communication in the tube, after its striking end hasbroken the acid'reservoir and thereby putthe apparatus in operation.

2. In a fire extinguishing apparatus the combination of a suitable vessel containing the extinguishing fluid having double ,stulfing box a tube passing therethrough and extending to the bottom of said vessel which tube is adapted to conduct the fire extinguishing liquid, said stufiing box also being provided with a piston, which forms a valve for said tube and is adapted to close the same as long as the apparatus shall remain charged, and adapted to open communication in the tube at the moment when the apparatus is to operate; an acid containing reservoir placed underneath said piston and arranged so as to be touched and broken by said piston when the latter reaches the lowest point in its downward stroke, said piston being adapted to be moved by percussion or otherwise, from its highest to its lowest position to break said acid reservoir, substantially as described.

In Witness whereof I have hereunto set my hand in presence of two witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4941615 *Oct 3, 1988Jul 17, 1990Bolduc Lee RAerosol dispenser
US4979638 *Oct 24, 1988Dec 25, 1990Bolduc Lee RAerosol dispenser with sealed actuator
US5012978 *Oct 10, 1989May 7, 1991Bolduc Lee RAerosol dispenser and method
US5018643 *Sep 14, 1989May 28, 1991Bolduc Lee RAerosol dispenser with sealed actuator and aerosol dispensing method
US5052585 *Jul 16, 1990Oct 1, 1991Bolduc Lee RDispenser
US5064121 *Jul 16, 1990Nov 12, 1991Bolduc Lee RDispenser
US6805844 *Mar 3, 2000Oct 19, 2004Tennessee Valley AuthorityReactor vessel, method and system for treating, sampling, and transporting toxic waste
Cooperative ClassificationA62C13/003