US1611816A - Blowtorch - Google Patents

Description

Dec 21, 1926. 1,611,816

' H. J. CARY BLOW TORCH Filed 'May 25 125 Patented Dec. 21, 1926.

htlhdlt HENRY JOSEPH CARY, F SAUKVILLE, WISCONSIN.

BLOWTORCH.

Application filed May 25, 1925. Serial No. 32,707.

This invention relates to blow torches;

In blow torches as heretofore constructed, it has been the universal practice to use gasolene and it has also been necessary to wait a few minutes after the torch is lighted before it will give the full and hot blast required.

This invention is designed to overcome such defects, and objects of ,such invention are to provide a blow torch which may be instantly lighted and will immediately give the requisite full blast of flame without the necessity for the initial wait, and which is so constructed that it will use kerosene with equally good results as those obtained from the use of gasolene and without the danger incident to the use of gasolene.

Further objects are to provide a construc tion which may be readily applied to standard types of blow torches with a minimum of changes, or which may be made as a complete unit if preferred.

An embodiment of the invention is shown in the accompanying drawings, in which The single figure is a view of the blow torch with the major portion in section to show the construction.

Referring to the drawings it will be seen that the usual reservoir or drum 1 is provided and is adapted to receive the kerosene. This drum carries an upwardly projecting pipe 2 which communicates with the lower portion of the reservoir by means of the pipe 3. The pipe 2 is relatively sturdy and supports a fitting l at its upper end. This fitting is provided'with a nozzle 5 screwed in its outer end and having an outwardly tapered aperture. A compressed air nozzle 6 projects into the fitting a into proximity the nozzle 5, as shown in the figure. It is connected by means of a small tube 7 with a "alve 8 screwed into the upper end or the hollow handle 9. This valve is provided with a needle stem 10 threaded into its body and provided with a suitable manipulating knob or handle 11, whereby the flow of air may be regulated.

The lower end of the hollow handle carries an outwardly projecting L 12 to which is secured the hose receiving member 13, such member being adapted to receive a compressed air hose from any suitable source of su ply.

t is to be noted from the figure that the fitting t supports a perforated open ended burner drum 14; in spaced relation to the nozzle 5 and, it desired, suitable tool receiving brackets 15 of dillerent heights may be secured to the burner drum.

In using the device, it is merely necessary to open the air valve and to light the outwardly projected atomized stream of fuel and air. It is to be noted that the line stream of compresed air sucks the kerosene upwardly through the pipes 52 and 3 and projects it in a blast in mist like form through the nozzle 5. Thus, the device is ready for instant use and prior heating is not required as in the usual types of blow torches. Further it has been the previous practice to rely upon the vapor pressure of the gasolene in order to secure the necessary pressure for the blast. For this reason, therefore, it has been impossible to use kerosene or other fuel or low volatility with satisfaction. However, in practising this invention any desired fuel such as kerosene may be employed with the utmost case.

Although the invention has been described in considerable detail, it is to be understood that the invention may be variously embodied and is, therefore, to be limited only as claimed.

I claim:

A portable blow torch having a convcutional luel receiving drum and a hollow handle carried thereby and having a pipe leading into said drum and below the fuel level, a nozzle carried by said pipe and having a forwardly projecting aperture through which fuel n'iay be sprayed, a fitting screwed into the nozzle and having a tapered nozzle alining with said aperture and adapted to project fuel through such a erture, a pipe communicating with the upper end of said hollow handle and leading to said second men tioned nozzle, a manually controlled valve interposed between the pipe and the hollow handle, and a fitting closing the lower end 01" said hollow handle and having an out wardly projecting air pipe receiving neck, whereby air under pressure may be supplied through said hollow handle to said second mentioned nozzle.

In testimony that I claim the foregoing l have hereunto set my hand at Saukville, in the county of Ozaukee, and State of Wisconsin.

HENRY JOSEPH OAR-Y.

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