US628652A - Spout and spouted vessel. - Google Patents

Description

No. 628,652. Patented Julyv ll, I899.

W. A. DUNLAP.

SPOUT AND SPOUTED VESSEL.

(Application med June 24, 1898.)

'(No Model.)

2 WITNESSES: Pl INVENTOR,

UNITED-ESTATES PATENT OFFI E.

lVILLIAM A. DUNLAP, OF PITTSBURG, PENNSYLVANIA.

SPOUT AND SPO UTED VESSEL.

SPEC IFICATION forming part of Letters Patent No. 628,652, dated July 11, 1899.

Application filed June 24,1898. Serial No. 684,336, (No model.)

To aZZ whom it incl/y concern:

Be it known that 1, WILLIAM A. DUNLAP, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Spouts and Spouted Vessels,of which improvements the following is a specification.

The invention described herein relates to certain improvements in spouts for sheetmetal receptacles, such as miners lamps, coffee-pots, &c. The spouts of such vessels are arranged at an acute angle to the axis of the vessel and are made of such a length that their upper ends will be above the highest point of the liquid contained in the body of the vessel. It is also desirable, especially in miners lamps, in order to prevent the oil from escaping when the miner bends over, that the angle between the axis of the spout and the axis of the body should be very acute.

In making spouted vessels the edges of the inner end of the spout are at an angle to its axis corresponding to the desired angle between the spout and the axis of the body. The

more acute the angle which the edges of the inner end form with the axis of the spout the longer the major axis of the ovoidal opening formed by cutting the spout at an angle. As the portion of the body of the miners lamp to which the spout is attached is comparatively short,usually about one and ahalfinches long, it will be readily understood that the limit of the angular arrangement of the spout willsoon be reached. This will be readily understood by reference to Figure 4, where the dotted line a represents the necessary extension of the lower side of the spout constructed to be applied at the desired angle to the body under the practice now customary in the art.

. As it is not desirable to increase the length gether. Fig. 4 is a sectional elevation, on an enlarged scale,showing the spouts applied to a lamp-body; and Fig. 5 is a diagrammatic view illustrative of themanner of constructing the spout.

In the practice of my invention the spout 1 is formed by seaming together the edges of a suitably-shaped blank, which is so shaped that the ovoidal opening at the larger or inner end of the spout will have approximately the same dimensions as the opening made in the body for its reception. This opening is preferably made as large as the length of the body of the lamp will permit, so that considerable taper may be given to the spout, as it is desirable that the wick should be surrounded with oil to nearly the end of the spout, as by reason of the character of the wick and the oil (lard-oil) capillary action through a conside-rable length of wick will not afford a sufficient supply for a bright flame.

It has been found that in order to make the larger or inner end of the spout the size of the largest possible opening in the bodyof the standard lamp the angle of the edges of the larger end of the spout cannot be much less than forty-five degrees to the axis of the spout,

so that the spout when secured to the lamp will project at the same angle from the body. In order to lessen this angular position of the spout with reference to the body, the metal at the lower side of the spout adjacent to its larger or inner end is stretched or swelled out, as at 1), thereby lessening the angular relation of the edges of the inner end of the spout to the axis thereof. As the edges of the inner end of the spout are parallel with the sides and axis of the lamp-body, the angle of the axis of the body and the axis of the spout when secured to the body will be reduced in proportion to the stretch or elongation of the metal at the under side of the spout.

In securing the spout to the body the metal adjacent to the edges of the inner end of the spout is creased or folded to form an outwardly-projecting flange 2, adapted to bear against the body of the lamp around the spoutopening. The portion 3 of the spout within the flange 2 projects through the opening in the body and is bent out against the inner side of the body, thereby firmly clamping the wall ofthe body adjacent to the opening between the flange 2 and the portion 3 of the spout. By the use of suitable tools this joint is made sufficiently' tight to prevent leakage without the use of solder.

While the improvement has been described as applied to miners lamps, it Will be readily understood by those skilled in the art that such improvement is as readily applicable to all classes or kinds of vessels having spouts.

When double spouts are employed, as in miners lamps, the inner spout iis constructed in the same manner as the outer spout, except that no crease or fold is formed thereon; but the inner end of the spout 4 is bent out wardly to form a flange 5. When the spout i is placed within the outer spout, the flange 5 is fitted Within the groove produced in folding or creasing the outer spout to form the flange 2. WVhen the inner spout is secured in position, the outer spout is secured to the body in the manner described. In clamping the flange 2 and portion 3 against the body of the lamp the Walls of flange 2 are pressed tightly against the flange 4:, forming a hermetic joint.

I claim herein as my invention 1. A spout for vessels formed of a single piece of metal and having a portion adjacent to its inner end stretched or elongated, substantially as set forth.

2. The combination of a vessel, and a spout therefor, said spout being formed of a single piece of metal and having a portion adjacent to its innerend stretched or elongated, substantially as set forth.

In testimony whereof I have hereunto set my hand.

WILLIAM A. DUNLAP.

Witnessesi DARWIN S. WoLooTT, F. E. GAITHE'R.

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