US1090141A - Self-heating soldering-iron. - Google Patents

Description

Patented Mar. 17, 1914.

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J. L. PINNEGAN.

J- TEEBING GUARDIAN.

SELF HEATING SOLDERING IRON.

APPLIOATION FILED NOV. 80, 1909.

jvu human TED STATES JOHN L. FINNEGAN, BY JOHN TREBING,

GUARDIAN, 0F NASHVILLE, TENNESSEE.

SELF-HEATING SOLDERING-IRON.

'1 b all whom it may concern Be it known that I, JOHN 'lnnujmo, a citizen of the United States, residing at Nashville, in the county of Davidson, State of Tennessee, have been appointed guardian for JOHN L. FINNEGAN, who has invented new and useful Improvements in Self-Heating Soldering-Irons, of which the following is a specification.

This invention relates broadly to self heating tools and more particularly to a self heating soldering iron.

The principal object of this invention is to provide a soldering iron wherein the intensity of the heating flame may be regulated by a manually cont-rolled throttle.

Another object of this invention is to provide a self heating tool with an interchangeable work head.

A further object of this invention is to provide a self heating tool, particularly a soldering iron with a work head in which solder or material adapted to be rendered fluid by application of heat, is confined within the head itself and arranged to be distributed through heated channels to the point of desired application.

A still further object of this invention is to provide a self heating tool with a self contained supporting rack which permits the tool to be conveniently laid aside withp out danger of burning its support.

Other and further objects of this invention will in part be obvious and will in part 5' he pointed out in the specification herein- 1 after following.

Figure 1 is an elevation showlng the improved tool on a longitudinal vertical section. F 2 is a transverse section taken through Fig. 1. imn'iediately forward of the supporting bracket upon lines A-r\ of Fig. 1.

Referring more particularly to Fig. 1 which is a sectional longitudinal view of my improved soldering iron and torch combined, the liquid fuel is conducted to the tool by means of a heat insulated hollow wire 54., which wire is connected with the tool by means of a swivel joint A small needle valve 56 is arranged in a bypass through the main fuel passage 5L, and is adapted to permit a small amount of Specification of Letters Patent.

Application filed November 30, 1909.

Patented Mar. 17, 1914.

Serial No. 530.660.

fuel to be admitted to the burner tip 57 at all times during the use of the tool in order to maintain a pilot [lame at the burner tip 57. To prevent the pilot lame from being extinguished by drafts of air, the burner tip Si is surrounded by a wind guard 58. A. valve 59 is provided in the main fuel passage 51, and is substantially in the nature 1 of a throttle valve. The valve 59 is normally maintained in a closed relationship by means of a resilient spring 50, which tends to keep the valve head 49 against the valve seat 48. A thumb piece 47 however, is arranged upon the valve stem in such manner as to enable the operator to open the valve 59 against the pressure of the spring 50 and to regulate the flow of liquid fuel within any desired relationship between pre-determined limits, which limits are the strength of the pilot flame hereinbefore specified, and the pro-determined position of a regulating valve 62, which will be more specifically described hereinafter. A head 4:6 for the valve stem 59, is provided with a transverse opening and also the valve stem 3!) is provided with a transverse opening, which opening is so located in the valve stem as to require depression of the valve stem before the openings are all in alinement. Thus if it is desired to permanently keep the throttle valve 49 open, it is only necessary that the valve stem 59 be depressed by means of finger pressure exerted upon the thumb piece -17 to depress the valve stem and aline the openings, then inserting a nail ('30 or other convenient pin through the openings. A. heat insulating handle (31, is mounted upon a tubular member 45, and l carries at its outer end a thumb piece 44, which is connected with an adjustableneedle valve (32. The head +12, of the adjustable needle valve (39., is arranged to be seated within the burner tip 57, in such manner as to detcrn'iine the maximum amount of fuel which can be introduced through the burner tip 57. A drip pan il, is arranged immediately beneath the burner tip 57 and the wind gluirifl 58 in such manner as to form a receptacle into which liquid fuel may be admitted through the burner tip for ignition, to permit pro-heating of the tool preliminary to lighting of the heating flame. A casing 63,

extends forward from the burner tip and substantially forms a flame jacket. The casing 63 is provided with air ports 6%, that are adapted to admit a sul'licient amount of air within the jacket to properly oxidize a hydro-carbon oil passing from the burner tip 57. The casing (33 is provided with lugs (35, which lugs are adapted to carry supporting prongs 66, that terminate in small spherical knobs 40.

As disclosed in Fig. 2, it will be noted that the prongs G6 are arranged around the casing 63 at substantially ninety degrees apart, and thus form convenient supports for maintaining the hot casing 63, or burner head, from coming in contact with the work table or other support upon which the tool may be resting. The knobs d0, carried upon the supporting prongs 66, form convenient attaching members for a stand 74, when it is desirable to use the tool as a heating torch in a more or less stationary position.

A soldering iron or work head 67, is arranged to be removably attached within the casing 63, and when it is desirable to use the device as a blow pipe or a heating torch, it is only necessary to remove the soldering iron or work head 67 from the casing 63. The soldering iron is provided with a heat conducting member 68, which lies within and is spaced apart firm the flame casing 68. The heat conducting member 68, is provided with openings 69, in order to permit the hot gases to pass freely through the walls of the heat conducting member. The work face or nose of the soldering iron 67, is provided with longitudinal openings 71, which lead from the face of the iron to the interior of the heat conducting member 68, and form a passage permitting the exhaust of hot gases, at the same time directing hot gases from the flame through the burner head to the work point. One of the openings 71, is preferably connected by means of a by-pass 72, with a reservoir 73. The by-pass '72, is arranged to connect with the reservoir 73 near the upper portion of the reservoir in such manner that any fluid material, such as molten solder, carried by the reservoir, will not tend to escape through the by-pass 72, unless the tool is tipped a considerable degree toward the work point. It will be noted that the arrangement of the solder reservoir 73 is such as permits of a convenient manner of delivering solder to the work point by the use of only one of the operators hands, leaving the other hand free to support himself when doing aerial work, or leaving the other hand free to hold articles to be worked upon,

As many changes could be made in the device without departing from the scope of the invention, I desire that the specification and drawings shall be taken as illustrative and not in a limiting sense.

(that is claimed is 1. In a device of the class described in combination, a handle, a burner, a valve seated in said burner, main and auxiliary fuel ducts communicating with the burner, a throttle valve in said main fuel duct, means for regulating the auxiliary supply of fuel to the burner when the throttle valve is closed, a flame jacket, a soldering head detachably mounted therein, said soldering head being provided with longitudinal canals therein, a solderrreservoir therein, and means of communication between said reservoir and one of said canals for the passage of solder.

2. A self heating tool comprising a handle, a needle valve passing through said handle and coiiperating with a threaded portion of said handle to permit-the regulation of said needle valve, a seat for said needle valve below said threaded portion, a chamber between said seat and said threaded portion, a burner, means cooperating with said chamber for supplying fuel to the burner, and a spring valve located within said means eXteriorly of said chamber for controlling the flow of fuel to the chamber.

3. In a device of the class described in combination, a handle, a burner, means for supplying fuel to said burner, a valve for regulating the discharge of fuel from said burner, a throttle valve for controlling the supply of fuel to said regulating valve, a flame jacket forming a combustion chamber, and a soldering head carried by said flame jacket, said soldering head comprising a head portion and a tubular portion extending within said flame jacket and provided with transverse openings, said soldering head being also provided with conduits leading from the tip of said soldering head to the combustion chamber.

4. In a device of the class described-in combination, a burner, means for supplying fuel thereto, means for regulating the dis charge of fuel from said burner, a throttle valve adapted to control the supply of fuel to said regulating means, a flame jacket carried by said burner and forming a combustion chamber, and a soldering head mounted in said flame jacket, said soldering head being provided with openings converging toward the point of said soldering head and leading into said combustion chamber, substantially as described.

5. In a device of the class described in combination, a handle, a burner carried by said handle, a flame jacketcarried forward of said burner and forming a combustion burner, and a solderin head carried by said verging conduits leading into said combusflame jacket,' said solc ering head compristion chamber.

ing a Working head and a tubular portion extending Within said flame jacket and spaced apart from the Walls of said. flame jacket the tubular portion being provided with openings in the Walls thereof, and the 1 Working head being provided With con- JNO. TREBING, Guardian for John L. F innegan.

Witnesses:

J. A. WELLs, W. H. I-IALBERT.

copies of 1:111: patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). O.

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