US937115A - Lamp. - Google Patents

Description

W. H. THAYEB..

LAMP. APPLICATION FILE) JUNE 22, 1906.

937, 1-1 5. Patented Oct. 19, 1909.

UNITED STATES WILLIAM I-I. THAYER,

OF CHICAGO, ILLINOIS.

LAMP.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed June 22,1906. Serial No. 322,852.

To all whom it may concern:

Be it known that I, WILLIAM H. THAYER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Lamps, of which the following is a specification.

My invention relates particularly to selfgenerating gas lamps which operate to generate their own gas supply fromhydro-carbon and other volatile liquids.

My primary object is to provide improved mea-ns for regulating the feed of oil into the retorts of lamps of this character.

The invention is illustrated in its preferred embodiment in the accompanying drawin in which- Figure l represents an elevational view of a lamp equipped with my improvements; and Fig. 2, a view of the same taken as indicated at line 2 of Fig. l.

The general construction of the lamp illustrated is well understood. It comprises a frame composed of tubular members a, a1, a2, c3 and a4; a burner b supported on the member a4 and equipped with a globe 55,' and a retort c receiving its oil from a pipe c1 controlled by a valve c2, whose stem projects horizontally beyond the frame and is equipped with a vertical wheel o3. The members a, c1 diverge downwardly and are joined to the upper ends of the members a2, a3 which converge somewhat downwardly and have their lower ends connected by the bottom member at. The oil-tube c1 extends, in the usual manner, through the tubular member a, and connects in a well-known manner with the valve c2. The gas, as generated, passes from the retort into a tubular member c4, and thence through the member a3 and a portion of the member a4 to the burner b, air being drawn in at the opening c5 of the member c4 adjacent to the point of injection of the gas.

It will be understood that the valve c2 may be operated by turning its stem through the medium of the wheel c3. The wheel c3 is equipped with an endless chain cl which passes about the wheel, thence through a guide-ring d1 supported on a stem projecting at right angles to the frame-member a2, the members of the chain then separating and passing over guides d2 projecting laterally from the central portion of the bottom member a4 of the lamp, It will now be understood that were force to be applied to the chain in a direct line beneath the wheel c3 a turning moment would result, tending to swing the lamp-frame in its own plane; and, as it is customary to suspend the lamp through the medium of the vertical portion of the pipe c1 or a pipe co-axial therewith, the desirability of obviating this diiiculty is obvious. In the present construction, it will be understood, any turning moment developed by downward force applied to either member of the chain is counteracted by an opposed turning moment exerted through the guide d2, so that equilibrium is maintained. The form of the guides @Z2 is unimportant. They have been shown as headed studs projecting laterally from the plane of the lamp-frame, so that channels are afforded between the stud-heads and the member at for the chains to run in. While it is preferred to locate the guides d2 at the base of "and in the plane of the vertical axis of the frame, this is not of vital importance.

What I regard as new, and desire to secure by Letters Patent, is:

l. The combination with a suspended lamp-frame equipped with a valve having a stem, of a flexible member connected with and serving to operate the valve through the medium of said stem, and a guide for said flexible member connected with said frame out of alinement with the connection between said iexible member and said stem and in position to develop a turning moment opposed to the turning moment exerted on the valve-stem, thereby to maintain the equilibrium of the lamp.

2. The combination with a suspended lamp-frame equipped with a valve having a stem projecting from the frame and provided with an actuating member located at a distance from the line of suspension of said frame, of a liexible member connected with said actuating member, and a guide connected with the base-portion of said frame out of alinement with the plane of said actuating member and receiving said flexible member, whereby counteractingturning moments are developed and equilibrium main-` tained.

3. The combination with a lamp-frame adapted at its upper portion for suspension, and a valve having a stem projecting from the frame in the plane thereof and equipped with a wheel, of a flexible member connected with said wheel, a frame supported guide for said flexible member adjacent to said wheel, and a guide for said flexible member projecting laterally from the base of the plane of the frame at the base of the frame, frame near the centerv thereof, for the purand a flexible member connected with Said pose Set forth. Wheel and passing through Said first-named 4. The combination with a lamp-frame, a guide and having its members separated and a retort, an oil pipe, a valve controlling the extending through said second-named guides, J5

admission of'oil to the retort and having a for the purpose set `Jforth.

horizontal stem equipped With a Wheel, a WILLIAM H. THAYER. guide immediately beneath the Wheel, a Titnessesz burner supported on the frame beneath the A. U. THORIEN,

lo retort, .guides projecting laterally from the J. H. LANDES.

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