US1078865A - Acetylene-gas lamp. - Google Patents

Description

may be PAUL WERNER LOHMANN, 0F

WORTHINGTON, WEST VIRGINIA, ASSIGNOR TO THE LOHMANN-HOLD MANUFACTURING COMPANY, INC., OF PITTSBURGH, PENNSYL- VANIA.

Specification of Letters Patent.

AcETYLENE-Giis LAMP.

Patented Nov. 18, 1913.

Application filed January 9, 1913. Serial No. 741,127.

To all whom it may concern Be it known that I, PAUL VERNER LOH- MANN, a subject of the Emperor of Germany, residing at Worthington, in the county of Marion and State of West Virginia, have invented certain new and use ful Improvements in Acetylene-Gas Lamps; and I do declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in acetylene lamps and particularly to acetylene lamps for the use of miners.

One object of the invention is to provide an acetylene lamp having an improved construction and arrangement of multiple gas generating chambers whereby, when the carbid in one chamber is being renewed the other chamber may be put in operation thereby permitting the lamp to be kept continually burning.

Another object is to provide a lamp of this character which will be simple, strong, durable and inexpensive in construction, efficient and reliable in operation and which quickly and easily started and controlled.

W'ith these and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed. 7

In the accompanying drawings: Figure 1 is a front view of myimproved acetylene lamp; Fig. 2 is a central vertical longitudinal section thereof; Fig. 3 is'a horizontal sectional View taken on the line 33 of Fig. 2; Fig. 4. is a similar view taken on the line 44 of. Fig. 2; Fig. 5 is an enlarged detail horizontal sectional view of the outer ends of the gas conducting tubes and the double burner tips applied thereto.

y improved acetylene lamp comprises a main generating chamber 1 which forms the base of the lamp and has on its upper end a reduced threaded neck 2 adapted to be screwed into engagement with a socket 3, the upper portion of which forms the gas chamber 4 for the generator 1. The upper portion of the socket which forms the gas chamber 4 is reduced andforms an annular shoulder 5 between which and the upper edge of the neck 2 of the generator chamber 1 is secured the outer edge of a concaved gauze partition 6 and the outer edge of a filtering pad 7 formed of felt or other suitable ma terial through which and through said gauze partition 6 the gas from the generating chamber 1 is adapted to pass into the main gas chamber 4.

The upper end of the main gas chamber 4 is closed by a generating chamber 8 the upper portion of which is threaded exteriorly to receive an interiorly threaded annular flange 9 on the lower end of a water chamber or reservoir 10 which forms the upper portion of the lamp and is here shown as being provided with a concaved top in which is formed afilling opening 11, said opening being normally closed by a screw plug 12. The upper edge of the sup plemental gas generating chamber 8 is turned inwardly to a slight extent to form a flange 13 above which and within an annular recess in the bottom of the water tank atits outer edge is arranged a rubber gasket or packing ring 14 whereby the gas generated in the chamber 8 is prevented from escaping through the threaded connection between the flange 9 and said generating chamber.

Arranged on the inner side of the generating chamber 8 near its upper edge is an annular inwardly extending flange 15 between which and the adjacent lower side of the bottom of the water chamber is clamped the edges of a concave gauze partition 16 and a filtering pad 17 formed offelt or other suitable material and through which the gas generated in the chamber 8 passes into a gas receiving compartment 19 formed in the center of the pad 17 and beneath the central-portion of the bottom of the water reservoir. The gas compartment 19 is connected by a gas conducting tube 20 with a supplemental gas chamber 21 Whose wall stands within the main gas chamber 4 as shown.

Arranged through the Water reservoir 10 and extendin downwardly through the tube 20 and t e su plemental gas chamber 21 and through t e filtering pad 7 and gauze partition 6 and into the main gas generating chamber 1 is a. main water conducting tube comprising an upper section '22 which is secured in the top and bottom of the reservoir 10 and has its lower end projecting a short distance below the bottom of the reservoir and adapted to fit into the upper end of the lower section 23 of the tube, said lower section being secured to the bottom of the supplemental gas chamber 21 as shown. In thus arranging the main water conducting tube it will be seen that' when the reservoir 10 is removed from the supplemental gas generating chamber 8 the upper section of the tube will be detached from the lower section and removed with the water tank and in order to provide a fluid and gas tight connection between the adjoining ends of the tube sections 22 and 23 I- provide an annular flange 24 which is secured to the lower section of the tube adjacent .to its upper end and engaged with said flange and on the upper end of the lower tube section 23 is a washer or packing ring 25 which, when the parts are assembled is clamped between the flange 24 and the bottom of the reservoir 10 and forms a fluid tight closure for the engaging ends of the sections of the tube. In the upper section 22 of the water tube near the bottom of the reservoir 10 is formed a water discharging passage 26 which is adapted to be opened and'closcd by a valve 27, said valve being here shown and is constructed in the form of a wire rod which extends entirely through the tube and has a fluid tight connection therewith. In one side of the valve rod is formed a water conducting groove or channel 28 which extends from a point immediately above the water discharging passage 26 to the lower end of the rod whereby when the latter is turned to bring the groove in engagement with the passage 26 the water from the reservoir is permitted to flow through the tube and groove in the valve rod and is conducted by these parts to the lower portion of the main chamber 1 whereby the carbid therein is moistened and the gas thus generated in this chamber. The upper end of the rod 27 extends a short distance above the top of the reservoir 10 and has formed on its upper end a suitable handle 29 whereby the rod may be operated to bring the groove 28 into and out of alinement with the passage 26 in the Water conducting tube thereby permitting water to flow from the reservoir onto the carbid in the main generating chamber.

Water is supplied to the carbid in the supplemental generating chamber 8 through a water conducting tube or pipe 30 which extends through the reservoir and has its lower end projecting through the filtering pad and partition of the supplemental generating chamberand extending downinto said chamber as shown. In the tube or pipe 30 near the bottom of the reservoir 1s a water discharging opening 31 which is normally closed by a valve 32 in the form of a wire rod which extends through the tube and closely fits the latter. The lower end of the valve rod 32 is reduced as shown at 33 so that when the rod is pulled upwardly in the tube 30 and said reduced portion brought opposite to the discharge opening 31 the water will flow through the latter from the reservoir 10 into the lower end of the pipe 30 which will conduct the Water into the supplemental as generating chamber and onto the car id therein, thereby causing the formation of gas in this chamber which will pass through the partition 16 and filtering pad 17 thereof into the com partment 19 from whence the gas passes through the tube 20 into the supplemental gas chamber 21. The upper end of the valve rod 32 projects a short distance above the upper end of the tube or pipe 30 and above the reservoir 10 and has its upper end bent to form a handle 32 whereby the rod may be operated to open and close the dis charge opening 31 in the manner described.

ounce ed respectively with the main gas chamber 4 and the supplemental gas chamber 21 are gas conducting pipes 34 and 35 the outer ends of which are bound together by a sleeve 36. \Vith the ends of the pipes 34 and 35 is engaged a burner tip 3 of double form or having independent gas passages 37 and 37 which connect respectively with the pipes 34 and 35 as shown. On the sleeve 36 and surrounding the tip 37 1s a reflector 38 of any suitable construction.

Secured at its inner end to one side of the supplemental gas generating chamber, and to the adjacent side of the socket 3 with which the main generating chamber is engaged is a hook shaped handle 39 whereby the lamp may be engaged with a miners cap or with any suitable support. By arranging the handle as herein shown and described the inner end thereof forms a brace between the socket 3 and the supplemental generating chamber whereby the structure of these parts is greatly strengthened.

In the operation of the lamp the valve of the water conducting tube of the main generating chamber is opened to permit the desired quantity of water to flow onto the carbid in the main generating chamber, thus causing a supply of gas to be formed and discharged into the main gas receiving chamber from which it passes to the burner tip through the discharge pipe 34 and is burned. When the carbid in the main generating chamber has been exhausted and requires renewal the valve of this chamber is closed and the valve of the water supply pipe for the supplemental gas generating chamber is opened, thus causing the gas to form in this chamber. This gas passes to the supplemental gas receiving chamber and from thence through the discharge pipe 35 to the burner tip thereby ermitting the continued use of the lamp w i in the main generating chamber is re;-

1c the carbid 18 newed. As soon as the carbid in the main chamber has been renewed and this chamber again placed in position on the lamp, the water conducting mechanism thereof is opened and the water conducting mechanism of the supplemental generating chamber closed, thus stopping the generation of gas in the supplemental chamber and again producing gas in the main chamber. This construction and arrangement of the lamp permits the same to be continuously used and greatly facilitates the recharging of the generating chambers thereof.

From the foregoing description taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advan tages of the invention as claimed.

Having thus described my invention, what I claim is:

1. The herein described acetylene generating lamp comprising a base forming a main generating chamber and having a reduced and threaded neck, the main gas chamber having a threaded socket engaging said neck; a supplemental gas chamber located within the main gas chamber, separate outlet pipes leading from said chambers to a common burner, a supplemental generating chamber whose bottom wall forms the top of said'gas chambers, a water reservoir having a threaded connection with said generating chamber, a pipe leading from the latter into the supplemental gas chamber, a water pipe leading from the reservoir through said gas pipe and throughout both gas chambers into the main chamber, a second water pipe leading from the reservoir into the supplemental chamber, and means for controlling the flow of water through said pipes.

2. An acetylene lamp of the character described comprising a water reservoir, a supplemental gas generating chamber having its upper end attached thereto, a as conducting tube secured in said supp emental gas generating chamber and opening through the bottom thereof, a supplemental gas receiving chamber secured to the bottom of said supplemental generating chamber over the lower end of said tube, a threaded socket secured to the bottom of said supple mental generating chamber, a main gas generating chamber having a reduced threaded neck adapted to be screwed into said socket, independent water conducting tubes connecting the reservoir with said main and supplemental gas generating chambers, valves to control the discharge of Water through said tubes, main and supplemental gas conducting pipes connected respectively with said main and supplemental gas receiving chambers, and a burner tip having independent gas passages connected respectively with the outer ends of said pipes.

3. An acetylene gas generating lamp comprising a water reservoir, main and supplemental gas generating chambers connected with said reservoir, separate gas receiving chambers connected with said generating chambers, a. main water conducting tube formed in upper and lower separable sections, the upper section being secured to said water reservoir, a packet.- joint between said sections. a controlling valve for said tube, a supplemental water conducting tube arranged in said reservoir and connected at its lower end with said supplemental gas generator, a controlling valve for this tube, gas filtering pads arranged between said gas generating chambers and their respective gas receiving chambers, independent gas conducting pipes connected with said gas receiving chambers, and a burner tip having independent connections with said pipes.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

PAUL WERNER LQHMANN. Witnesses JOSEPH KANN, S12,

G. W. MARTIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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