US91411A

US91411A - Improved fire-extinguisher

Info

Publication number: US91411A
Authority: US
Publication date: 1869-06-15
Anticipated expiration: 1886-06-15

Description

I Saillie.

UNITED STATES PATENT OFFICE.

JOHN F. BOYN'ION, OF SYRAGUSE, NEW YORK.

IMPROVED FIRE-EXTINGUISI-IER.

Specification forming part of Letters Patent No. 91,411, dated June 15, 1869.

To all 'whom it may concern:

Be it known that I, JOHN F. BoYNToN, of the city of Syracuse, in the county of Onondaga, in the State of New York, have invented Aa new and Improved FireExtinguisher; and

I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon.

The nature of my invention consists in placing a cylinder filled with compressed air or gases inside of a larger cylinder, which larger cylinder may be filled with-.water or water containing chemical substances in solution, the upper part ofthe superior cylinder so arranged that it may be closed air-tight and of sufficient strength to bear any desired pressure that may be produced by rupturing or giving vent to the compressed air or gas in the smaller cylinder.

The arrangement for puncturing or opening the inner cylinder may be a screw-rod with a point and stu'ing-box, so constructed that by screwing down the rod, a point upon its lower end may puncture the cylinder of condensed gases, allowing the same to escape among the liuids in the superior cylinder, which would thereby expel the fluids from the superior cylinder if a vent or stop-cock was opened forthe It can readily be seen that if l the smaller cylinder; contained twenty atmospheres condensed into the volume of one, there would be a pressure of three hundred pounds to the square inch, and if this air were discharged into the superior cylinder, containing a volumel of water only equal to one atmosphere, that the water would all be displaced by the expanding air, and leave a surplus of power by its expansive force after the water was disengaged. In this way the superior cylindermay be constructed for holding a quantity ot' water to be ejected, corresponding with the size of the smaller or air-cylinder, and the number of pounds of pressure to which it is charged.

The air-cylinders may be llled with an air or gas pump, and then closed by a stop-cock or hermetcally sealed by solder.

To put the machine in working operation, I [ill the superior cylinder nearly full of water or water containing chemicals in solution, then introduce the air-cylinder, and if it does not cause the water to flow over the top of the superior cylinder, I lill it up until it does, and then screw down the plug or cap which has passing through it the screw-rod for puncturin g oropenin g the lesser cylinder.

Figure 1 is an upright sectional view of the entire machine.

A is the superior cylinder. B is the inferior cylinder. C is the screw-rod for rupturing or opening the aircylinder. d is the rest or stump for the cylinder of compressed air.

This instrument may be used for throwing 1 Greek-tire upon an enernys vessels or fortifications when desired, and the air-cylinder placed upon the outside if necessary.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The use of a cylinder ot compressed air or gases, placed within another cylinder, llled with iuids, and so arranged that by opening the cylinder of com pressed gases they will eject the liquids from the superior cylinder by their expanding force.

Z. The application of acylinder of condensed gases or air to the outside of a larger cylinder, for expelling liquids from the same by the expansive force ot' the-com pressed gases.

JOHN F. BOYNTON.

Witnesses:

EDM. F. BROWN, HENRY N. MYGATT.