US1021568A - Miner's lamp. - Google Patents

Description

J. BE-RTHA. MINER'S LAMP. APPLICATION FILED Nov.'25, 1911."

Patented-Mar. 26, 19.12.

5 n l l g i l. l

INVENTOR ATTORNEYS To all whom t may concern mura entras TULIU'S' BERTHA, OF TYR/E, PENSYLVANIA.

MINER S LAMP.

vBe it known that I, JULUs BERTHA, a' citizen of .the United States of America, residiner at T vre, in the county of Allegheny and State of Pennsylvania, h'ave invented certain new and useful lmprover'ents in Miners Lamps, of which the following is a speciitication, reference being had therein to the accompanying drawing. v ,l

'lriilis invention relates to miners lamps;

i andf'tlie primary objectof my invention .is y to provide an acetylene gas lamp that will produce a bright flame or llight and facilitateIt-he vwork of miners.

Another object of thisv invention is to provide an acetylene gas lamp that can be safely worn upon a. cap and easily maintained in an operable condition.

Ay further object of the invention is to provide a miners acetylene gras lamp that is inexpensive to manufacture durable and highly etlicient for the purpo'es for which it is intended. I j

With the above and other objects in view the invention resides in thenovel construction, combination and arrangement of parts to be hereinafter Specifically described and then claimed.

Reference will now be had to the drawing. wherein there are illustrated the preferred embodiments of the invention, but it is to `be understood that the structural elements are susceptible to such variations as fall Within the scope of the appended claims. In 'the drawings Figure 1 1s a front elevation of the lamp. Fig. Qyiis a vertical Icross sectional View of the same. Fig. 3 is a Afront elevation ot the lamp.5 part-ly broken away and partly in longitudinal section. Fig. 4t is' a horizontal sectional view of the lamp,and'Fig. 5 is asimilar View ofa modified form of lamp. i 1

A lamp vin accordance with this invention comprises a water receptacle, carbid receptacles7 a controlling mechanism, a burner and Iother appurtenances of a lamp.

The water receptacle comprises a conicalshaped shell 1 having` the top thereof provided with an opening 2 normally closed by a hinged lid or stopper 3.' The lower edges of the shell l terminate in vertical walls 4 and secured to the lower edgesof said walls is an oval bottom plate 5. e Arranged within the shell 1 .is a' diaphragm or. hcrizontal partition 6 providing a' compartment 7 for the I controlling mechanism of the lamp;` The Specification of Letters Patent.

l application mea november 25, 1911.

patented Mar. 26, 1912. serial No. 662,321. l I

corresponding` in depth to the walls t and Y the space above the partit-ion 6 provides a water reservoir 9. Y .v

Soldered or otherwise connected tothe bottom plate 5 are caps 10 that are interiorly screw threaded, as at 11 to receive the upper exteriorly screw threaded ends of cupshaped or cylindrical carbid receptacles 12 adapted to contain calcium carbid. Arranged in each receptacle is a circular 'detachable bottom plate 13l having a central vertical tube 14 provided with perfor ations 15. The upper end of the tube terminates at an opening 16 in a perforated cup or screen.; 17 suitably connected tothe inner sides of the caps 10. The perforated cups are of a less diameter than the carbid receptacles 12.

The controlling mechanism comprises pipes 18 that extend downwardly through the bottom plate 5` and the caps '10 into the upper ends of the tubes 14. The'upper ends of the pipes are in communication with tubular valve bodies 19 that extend through the walls 8` and it at the front side ot' the lamp. The valve bodies 19 are connected by a longitudinal pipe 2O and said pipe. intermediate the ends thereof, is connected to a water pipe 21 that has the end thereof extending into an opening 22 provided therefor' in the partition 6. 'In the valve kbodies 19 are slidable valve stems 23 which in a closed posif closed by a mica iiap valve 26 riveted or,

otherwise secured intermediate its ends` as at 2'? to the bottom plate 5.

The burner comprises a tube QS that extends through-the walls ,8 and 4l into the compartment 7. The outer end of the tube 28 supports a disk or circular reflector Q9.

Suitably connected to the yrear side of the llamp at a point diametrically opposite the burner is a hoolr 30 by which thelamp can be detachably connected to a cap.

' It is a well known fact that acetylene gas used in lamps of this kind is generated by water 'dripping onto calcium carbid in properly controlled quantities. Assuming v that the reservoir 9 contains water and the receptacles l2 calcium carbid, it is only necessary for the miner to regulate the valve stems Q3 to admit the proper quantity of water to the pipes 1S. As the water passes into the tubes 14: and through the perforations l5 it contacts with the calcium carbid whereby acetylene gas' 1s generated. The gas passes through the perforated cups 17 and a t'ter a sutiicient quantity of gas has been gene ated it escapes through the openings 25 into the compartment 7 and then to the burner tube 28, at the outer end of which it can be ignited.

The perforated cups 17 prevent the openings Q5 from being clogged by the carbid mixture and the pert'orations l5 insure the equal distribution of water in the carbid chamber.

I attach considerable importance to using vseparate carbid containers or receptacles in connection with the lamp. In the present type otl acetylene gas lamp there is a single container' for carbid and considerable trouble is now experienced, particularly among minersfon account of obtaining a poor light near` the end ot the supply of carbid. In other words, the chemical actionV is not sutlicient near the end of the supply of' calcium carbid to generate gas and produce a bright light. Many miners will not use the acetylene lamp on thisaccount, and the majority that do use the lamp are provided with an oil lamp that they use while recharging the single carbid container or receptacle. It is the present practice when the light becomes' poor to immediately re charge the lamp and considerable calcium carbid is wasted,` as the miner generally dumps the solution on to the floor and re` charges with a fresh supply of calcium carbid. By providing two cooperating carbid containers, I eliminate the 4waste of carbidr and always provide a bright light that will facilitate theV work of a miner. The miner, by regulating the valves, can utilize the gas from one of the containers until the light becomes poor, then the other container can be brought into action and the gas utilized to maintain a strong and powerful light. It is during this period of use that t-he container first used will be completely exhausted and then the container can be recharged while the other container is furnishing the light. It will therefore be noted that the lamp can be continuously used without any interruption and without resorting to the use of an oil lamp to furnish light while the, I

acetylene lamp is being recharged.V

In Fig. 5 of the drawing there 1s 1llustrated a simplified form of lamp, wherein the Valve bodies 3l are in direct communica# tion with the reservoir 9 and in communication with down pipes 32 that extend into the tubes of the carbid receptacles. The

communication between the valve bodies 3l liquid reservoir, carbid receptacles, a gas collecting chamber interposed between said reservoir and said receptacles and communieating with these lattery detachable perfo rated tubes arranged in said receptacles, valve bodies in communication with said tubes, a water pipe interconnnunicating Vbetween said reservoir and carbid receptacles, ai"

burner tube at the front side of said lamp and communicating with said gas collectin chamber, and means-at the rear side of sai lamp to facilitate attaching a lamp to a miners cap'. l

2.. A miner`s acetylene gas-lamp compris ing a water reservoir having the base thereof provided with a controlling compartment, carbid receptacles detachably connected to the base of said reservoir and in communication with said controlling compartment, detachable perforated tubes arranged within the receptacles, perforated cups arranged within` said receptacles for preventing the communication between said compartment and said receptacles from being clogged, water pipesk intercommunicating between said reservoir and said tubes, a, burner in communication with said controlling compartment and adapted to receive therefrom, and means for controlling the` supply of water from said reservoir` tosaid perforated tubes.

In testimonywhereot I ailix my signa` ture in the presence of two witnesses.

JULIUS BERTHA. Witnesses MAX H. Snonovrrz, CHRISTINA T. Hoon.

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