US725769A - Automatic blowpipe. - Google Patents

Description

No. 725,769. PATENTED APR. 21, 1903.

- A. `PAINGEN.

AUTOMATIC BLOWPIPE.

APPLICATION FILED FEB. 25, 1903.A

no MODEL.

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UNiTsn STATES AUGUST PRINCEN, OF MINNEOTA, MINNESOTA.

PATENT FFICE.

AUTOMATIC BLOWPIPE.

SPEGIFIGATION forming part of Letters Patent No. 725,769, dated April 21, 1903. Application tiled February 25, 1903. Serial No. 145,054. (No model.)

To all whom it may concern,.-

Be it known that I, AUGUST PRINCEN, a citizen ofthe United States, residing at Minneota, in the county of-Lyon and State of Minnesota, have invented a new and useful Automatic Blowpipe, of which the following is a specification.

This invention relates to blast-lamps or automatic blowpipes, which are used for a great Variety of purposes, but more especially by jewelers for the purpose of creating an intense heat and concentrating the same upon a certain point Without the assistance of a blowpipe.

y invention has for its object to provide a device of this class which possesses superior advantages in point of simplicity, durability, and general efticiency.

With these ends in view my invention consists in the improved construction, ar rangement, and combination of parts, which willbe hereinafter more fully described, and particularly pointed ont in the claims.

In the accompanying drawings, Figure .1 is a side elevation of a device constructed in accordance with the principles of my invention. Fig. 2 is a 'vertical sectional view of the same.

Corresponding parts in both figures are indicated by similar numerals of reference.

The body of my improved lamp or automatic blowpipe is composed of a reservoir 1, which is preferably cast of brass or other suitable metal and which is provided with a horizontal diaphragm 2, whereby it isvdivided into an upper and a lower compartment, (designated, respectively, 3 and 4.) VThe upper compartment is provided with a .neck 5*, having a tightly-fitting cover 6, and with a tubular extension 7, in which Vis seated a safety-Valve 8, which may be of any suitable construction, it being preferably held to .its seat by means of a spring A9 of sufficient strength. The compartment 3 is furthermore provided with a horizontally-extending generator-tube 10, which is preferably composed of an inner member 11, integral with the tank or vessel, and an outer member 12, tightly connected with the member 1l by a screw-threaded connection. Said outer member is also provided in its under side with an opening 12a, from which a generator-tube 14,

of small diameter, extends outwardly below the said member 12 of the generator-tube.

The lower compartment 4 of the tank is provided with a filling-opening 15, having a tightly-fitting cover 16. Said compartment is also provided with an upwardly-inclined wick-tube 17, having a sleeve 18, whereby the flame may be regulated, as will be readily understood, by adjusting the sleeve so as to cover a greater or smaller portion of the wick. y

It is essential thatthe upper compartment of the tank shall be absolutely air-tight, the safety-valve being provided to avoid danger of excessive pressure within said chamber.

The operation of this device will be readily understood. Alcohol is the fuel preferred, although naphtha, gasolene, or other light hydrocarbon may be used. By igniting the wick 19 in the tube 17, which is extended upwardly to within a short distance of the generator-tube 10, the latter will soon be heated and the liquid fuel, whereby the outer end of the Wick 20 within said tube is saturated, will be transformed into vapor. The only escapeopening for the latter isthrough the constricted tube 14, at the exit of which it becomes ignited and is forcibly ejected, owing to the back pressure within the compartment 3 of the tank.. Should this pressure at any time become excessive, it will be relieved by the safety-valvev, as will be understood.

This device, as will be seen, is of extremely simple construction, and it may be conveniently manipulated with excellent results.

I desire it to be understood that I do not limit myself as to the structural details of this device, but reserve to myself the right to any changes and modifications which may be resorted to Without departing from the spirit of my invention.

Having thus described my invention, I claim- 1. A device of the class described, comprising a tank having a horizontal diaphragm, a wick-tube extending upwardly from the lower compartment and havinga regulating-sleeve, a generator-tube extending outwardly from the upper compartment above said wick-tube and having a burner-tube connected with an IOO having upper and lower compartments, a

wick-tube extending upwardly from the lower compartment, and a generator-tube extending outwardly from the upper compartment above said wick-tube, said generator-tube comprising separable members, one of which is integral with the tank and the other of which is closed at its outer end and provided with a oonstrieted burner-tube.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

AUGUST PRINCEN.

Witnesses:

O. L. DoRR, O. W. REESE.

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