US1368143A - Acetylene-lamp - Google Patents

Description

A. L. HANSEN.

ACETYLENE LAMP.

APPLICATION FILED IuNEz, |919.

1,368,143. Patented Feb. 8, 1921.

UNITED STAS PATENT orifice.

AUGIE L. HANSEN, OF EVANSTON, ILLINOIS. ASSIG-NOR TO JUSTRITE MANUFACTUR- ING COMPANY, OF CHCAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ACETYLENE-LAMP.

Specification of Letters Patent.

Patented Feb. s, 1921.

Applcationled .Tune 27, 1919. Serial No. 307,190.

To all 'whom it may concern:

Be it known that I, AUGIE L. HANSEN, a citizen of the United States, and a resident of Evanston, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Acetylene Lamps, of which the following is a specification.

vMy invention relates to acetylene lamps and particularly to miners acetylene cap lamps. The invention concerns particularly improved closure mechanism for the water inlet opening of the water container of the lamp.

These lamps are of well known construction. They usually comprise a water container, a carbid container, a valve for controlling the feed of water from the Vwater container to the carbid container, a burner tip connected to receive the generated gas from the carbid container, and a reliector surrounding the tip. Provision is also made for permitting the flow of gas into the water container should the pressure in the carbid container become excessive, and a vent is provided for releasing the gas from the water container. This vent is usually provided in the plug which closes the water inlet opening of the water container. The vent passageway must be kept clear for the free flow of gas therethrough but at the same time, provision must be made for preventing the escape of water with the gas or the escape of water through the filler opening past the plug. Heretofore, the closure plugs have been formed of sheet metal with a vent passageway therethrough and baille means for preventing escape of water through the passageway. Diiiiculty has been experienced to construct the metallic plugs suiiiciently accurately so that they will at all times accurately seat in the filler opening and entirely seal said opening against the direct outflow of water.

The important object of my invention is, therefore, to produce a closure plug which will accurately and securely fit in the filler opening and through which gas can readily escape and water iow be baflied. In accordance with my invention, I make the side walls of the plug of yielding elastic material such as rubber which will intimately fill the filler opening and seal it and which will have frictional engagement with the filler opening sides so that the plug is held in the opening against accidental displacement.

The construction of my improved closure plug is clearly shown on the accompanying drawing in which- Figure 1 is a side elevational viewlof a miners cap lamp, f

Fig. 2 is a plan view of the end of the water container and the closure plug7 Fig. 3 is an enlarged sectional view on plane 8 3, Fig. 2,

Fig. 4 is an enlarged side elevational view of the closure plug,

Fig. 5 is a sectional View on plane 5-5, Fig. l, and

Fig. 6 is a view of the under side of said closure plug.

The lamp shown comprises the'water container 10, the carbid cup 11, thevalve mechanism 12 for controlling the feed of water from the water container to the carbid cup, the gas conductingtube 13 and the tip 14, and the reflector 15 surrounding the tip. The valve stem 12 is 4turned by means of the lever 16, and theflamp is supported on the miners cap by means of a Aclamp 17 and a hook 18.

The water container has in its top wall the 'water inlet opening 19 which is surrounded by the flange 20.` As the lamp is carried on the miners `cap while he is at work, it is violently agitated and the water in the water container thrown about with considerable force. The filler opening must therefore be kept tightly closed during use of the lamp to prevent the escape `of the water. At the same time, vent passageway must be provided for the escape of gases which accumulate in the water container when thepressure in the carbid cup becomes excessive. l

' My improved closure plugP eiiiciently seals the filler opening and permits unobstructed iiow of the gases from the water container. The structure shown comprises the sheet metal top 21 from which extends the tubular shank 22 which at its lower end receives the washer or bottom plate 23. The

shank receives the elastic material 24 such as rubber, this material being held between the top 21 and the washer 23, the lower end of the shank being riveted against the plate as indicated at 25. The material 24 is of a shape to fit within the flange surrounding the filler opening 19. The opening shownis elliptical and the contour of the material 24 is therefore similarly elliptical in order that a snug lit is assured. The top 21 and the washer 23 are also elliptical and the top has the side flanges 26 and 27 which extend downwardly a distance alongside of the material 24 to assist in holding said material in place. The bottom plate or washer may also have upward projections 28'for engaging in I the'plug material 24 to assist in holding such projection 31 by means of which the plug n comes excessive.

structure can be readily swung upwardly to be removed from the iiller opening. The sides of the plug material 24v1 preferably taper so that when the plug is inserted and pressure applied thereto, it will accurately and snugly lill out the filler opening so as to form a perfect seal.

In the construction shown, the shank member 22 is in the form of a tubular rivet whose head It has the vent opening 32 therethrough. This vent opening is provided for the outiow of gas which enters the water container whenever the pressure in the carbid cup be- The vent passageway being'at the upper end of the shank member, kwater cannot directly escape therethrough from the water container under ordinary circumstances. However, as before srtated,

i the lamp is violently agitated during its use in the mine, and the gas pressure frequently becomes excessive in Y the Y carbid cupV and great volumes thereof flow suddenly into the water container and escape under consider- I able pressure through the vent passageway, the rapidly flowing gas tending to carry water particles with it through the vent passageway. The gas flowing rapidly through the water will also cause considerable splashing thereof. I therefore provide guards or j battle walls at the lower end of the shank `gas leaves the passageway 32, nearly all of Vits remaining moisture content will have been dropped or deposited against the walls of the shank, the moisturek being then received by the inclined baiiie platesvand conducted back to the water container.

Any water splashing upwardly,will strike the inclined baffle plates and be prevented from reaching the outlet vent. Thus, mois- Y ture is at all times prevented from escaping through the vent but the gas is free to How therethrough. As the elastic plug `lits snugly in the iller opening 19, it is impossible for any water to escape through such opening. After a period of use, the water in the waterv container usually becomes quite hot and if any particles could splash tothe exterior, wearing of the lamp would, of course, be quite disagreeable. However, my improved construction prevents any suoli escape of moisture and the lamp can therefore be worn with confidence and comfort. The rubber plug body engagesithe filler opening flange with suiicient friction to prevent accidental opening of the plug during use of the lamp.

Having thus described my invention,` I claim the following:

1. A closure plug structure for the filler l opening of the water container of an acetylene lamp, comprising a .sheet metal top, a hollow shank extending therefrom, a plug body of resilient material surrounding said shank, a bottom of sheet metal secured to the shank end and serving to hold said body on said shank, the top of said shank Vhaving a vent opening therethrough, and baffle walls forming an integral part of the bottom and extending diagonally toward eachother into position below the end of said shank.

2. A closure plug structure-for the filler opening of the water container of an acetylene lamp, comprising a sheet metal top plate, a hollow shank extending therefrom, a plug body of resilient material surrounding said shank, a bottom plate secured to the shank end to hold the plug body to the shank and against the top plate, side flanges on the top plate engaging with the plug body to prevent rotation thereof on the shank, the shank at its upper end having a restricted vent outlet, baille walls forming an integral part of said bottom plate extending below said shank to prevent the entrance of 'water Y thereto.

3. A closure plug structure for the'filler 1,ses,14s g opening of the' water container of a carbid lamp, comprising an elliptical sheet metal top plate, a tubular shank extending from said plate, an elliptical plug body of resilient material surrounding said shank, means for holding said body on said shank, and flanges extending downwardly from said cap and engaging against the sides of said plug body for preventing rotation of said body on said shank. 1o

In witness whereof, I hereunto subscribe my name this 25th day of June A. D., 1919.

AUGIE L. HANSEN.

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