US1835723A - Blowtorch - Google Patents

Description

L.. C. SALZER Dec. 8,1931.

BLowToRcH Filed Aug. l5, 1930 allor/u my Patented Dec. 8, 1931 f. r. '-p

ET STATES LAWRENCE C. SALZER, OF..A.UB`URN,A'NEW YORK BLoW'roRoH Application inea August 15, 1930. semi no. 475,500.

in the scope ot the invention as claimed, with-V out departing from the spirit thereof.

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which:

Figure 1 is a perspective View illustrative ot a blow torch embodying the invention.

Figure 2 is an enlarged detail sectional view, parts being broken. away. Y

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The numeral 1 designates a burner pipe to which is tted a nozzle 2. rIhe pipe 1 may be of any length and size a-nd has a handle 3 more or less tightly but slidably mounted thereon to prevent burning the hand. Fixed to the pipe 1 at its lower end, as seen in Figure 2, is a tapered collar 3. A small metal tube 4 extends through the pipe 1 and nozzle 2 and is centrally disposed within the nozzle and terminates a short distance from the extremity thereof. The device includes a Y-fitting which comprises a ball 5 and coupling ends 6, 7 and 8. The coupling ends 7 and S are juxtaposed and are outwardly diverged from the ball 5. The coupling end 6 is disposed opposite the coupling ends 7 and 8. A small metal tube 9 extends through the ball 5 and coupling ends 6 and 8. A plug 10 closes the outer end of the element 8 and the tube y9 extends therethrough. A flexible tube 11 connects the coupling end 7 with an outlet 12 which is controlled by a suitable valve. A flexible tube 13 connectsthe coupling end 8 with an outlet 14 which likewise consists of a suitable valve. A flexible tube '15fcon'nects the coupling end 6 with the end of the' burner pipe 1 remote from the knozzle 2,-said tube having its kend portion clamped between the flat surface of the collar`3 and the dat lower end tace of thevhandle 3. The tube 15 may be otany length, eight to tenV feet, more or less, ,to admit ot the torch covering a large area; within the tube 15 and connects the tube 9 with the tube 4. The tubes 11, 13, 15 and 16 are usually of rubber. The tubes 4 and 9 are of' metal.

The branch tubes 11 and 13 are shortv and make provisionv for connecting the main or extension tube 15 to the air and gas outlets. The outlet 12 is connected to asuitable source of gas supply whereas the outlet 14 is connected with a vsuitable source of compressed air. *When the torch is connected to the air and gas outlets, the flame may be regulated by adjusting the valves associated with the respective outlets, as will be readily understood. The gas from the valve controlled outlet 12 passes through the branch tube 11, Y-iitting, main tube 15, burner pipe 1, and nozzle 2 and is consumed as it issues from the nozzle. The compressed rair from the outlet 14 passes through the branch tube 13 and tubes-9, 16 andv 4, and issues from the tube 4 adjacent the extremity ot the nozzle and discharges into the Haine in a jet, thereby promoting combustion of the gas and intensit'ying the ilame which may be regulated to suit the work by adjusting the valves 12 and 14 in a manner readily understood.y It is observed that there is but a single line of tubing 15 and a single burner pipe 1, and, in consequence, there is no liability of two lines becoming entangled or inconvenience being experienced by the provision `ot a number of burner pipes.` l

Attention is directed to the fact that the tubing 15 may be removed from the pipe 1 inasmuch as the handle 3 may be shifted forwardly for freeing the end portion of said tubing from between the flat end tace of the handle and the collar 3. However, under normal conditions, the end of the hose will be lirmly held between the handle and said A small flexible tube 16 yis disposed Y collar so that accidental detachment of the hose will be prevented.

What is claimed is:

A blow torch including a burner pipe having anozzle, a collar carried at one end of the burner pipe, a handle mounted on said burner pipe, a small rigid air tube within the burner pipe and nozzle7 a Y-itting comprising a ball and coupling ends, a small rigid tube passing through the ball and one of the coupling ends of the Y-itting, a flexible tube v connecting the burner pipe with the Y-itting and having its end portion normally clamped between the collar and handle, said handle being slidable for releasing said end portion 'of the flexible tube whereby said flexible tube may be disconnected, asmall iieXible tube within the iirst mentioned flexible tube and connecting the small rigid air tube with the small rigid tube in the Y-itting, and branch tubes forming connecting means between the Y-.fitting and valve controlled gas and compressed air outlets.`

In testimony whereof I ValiX my signature. LAWRENCE SALZER. [1.. s]

Images