US338629A

US338629A - Fbank e

Info

Publication number: US338629A
Authority: US
Publication date: 1886-03-23
Anticipated expiration: 1903-03-23

Description

(No Model.)

P. E. BROWNE.

VBRMIN EXTERMINATOR. No. 338,629. Patented Mar. 23, 1886;

N. PETERS Pmlo-Limo n her, Wnihinglou. 11C.

UNITED STATES PATENT OFFICE.

FRANK E. BROYVNE, OF LOS ANGELES, CALIFORNIA.

VERMlN-EXTERMINATOR.

SPECIFICATION forming part of Letters Patent No. 338,629, dated March 23, 1886.

Application filed December 21, 1885. Serial No. 186,309. (No model.)

To all whom it may concern.-

Be it known that I, FRANK E. BROWNE, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Vermin-Exterminators, of which the following is a specification.

My invention relates to that class of exterminators by means of which the vermin are destroyed by forcing smokeinto their burrows.

The object of my invention is to construct a cheap, simple, and convenient device by means of which the smoke can be forced into the burrows of the animals to be destroyed. I accomplish this object by means of the device described herein and illustrated in the accompanying drawings, in which Figure l is a view of my device as it appears when the cylinder B is being raised. Fig. 2 is a vertical cross-section, showing the valve D J pushed down upon the cylinder B, to close it and force it downward.

Ais the furnace-cylinder, near the bottom of which is a grate, L, to sustain the fuel and fire.

B is the valve-cylinder, which fits thereon or therein, as may be desired.

D isa valve, of wood, having an iron facing, J, upon its under side and a crossbar, E, with handles F at each end. The handles F pass through iron loops G, secured to the valve-cylinder B, at the top thereof, and extending above the same such a distance as to give a vertical play of about half an inch to the handles F and the Valve D J. The valve is somewhat larger in diameter than the cylinder B, and j uts out beyond thesides thereof, and the loops are bent outward from the top of the cylinder, so that the valve fits between them when it rests upon the top of the cylinder.

A bail, I, is pivoted to the furnace-cylinder A, at the middle thereof, and is of such length as to swing freely over either end thereof.

The manner of using my exterminator is as follows: The furnace-cylinder A is placed over the open burrow Q, and earth is banked up around it. Straw or other suitable fuel is then placed in the cylinder above the grate L and ignited at the top. lVhen burning well, the valve-cylinder is placed upon the top of the furnace-cylinder and pushed down by means of the handles and valve. The two cylinders fit closely enough upon each other to require some slight pressure upon the upper one to force it down. As the valve is pressed down upon its cylinder to force it down, it closes the end of the cylinder, thus inclosing the air contained in the two cylinders, and as the upper cylinder is pushed down the air chamber formed by the two cylinders is shortened, and a portion of the air is forced down through the burning straw into the burrow of the animal, carrying a cloud of smoke with it. When the valve-cylinder is depressed as far as it will go, the operator pulls upon the handles, thus raising the valve until the handles come into contact with the top of the loops G, and leaving an opening at the top of the cylinder to admit the air. A further upward motion of the handles raises the valve-cylinder, the operator in the mean while holding his foot upon the bail to-hold the furnace-cylinder down. operation of moving the Valve-cylinder up and down forces the smoke-burdened air into the burrow and suffocates the animal. When the fuel is exhausted, the machine is turned up side down, thus throwing the fire into the valve cylinder and upon the valve. The furnace-cylinder is then withdrawn from the The p valve-cylinder and placed upon the mouth of the burrow and replenished with fuel. The fire is then poured out of the valve-cylinder upon the fuel in the furnace-cylinder, and the operation before described is repeated.

It will be seen that by this device the first effect of an attempt to raise the valve-cylinder by means of the handle is to open the valve, thus allowing the ingress of air as the cylinder is raised, while the first effect of an attempt to 'push down the cylinder is to close the end thereof, and prevent the egress of air.

The metal facing J upon the valve is provided to prevent the valve from burning; but the valve may be made wholly of either Wood or metal, as may be desired. The cylinders are preferably of sheet metal.

The lower end of the furnace-cylinder may be funnel-shaped, to fit the burrow, as is customary in making such machines.

I am aware that two tubes sliding upon each other have heretofore been used for the purpose of expelling powder-charged air from the inside of such tubes, and do not claim such in the line of the axis of the cylinder, whereby the movement of the handles in-operating the machine will first operate the valve and afterward the cylinder.

2. In a vermin-exterminator substantially such as described, the combination of the movable valve D, handles F, loops G, and'cylin- 0' der B.

F. E. BRO W N E.

Witnesses:

J AS. R. TOWNSEND, E. LEOHLER.