US546435A

US546435A - Henry e

Info

Publication number: US546435A
Authority: US
Publication date: 1895-09-17
Anticipated expiration: 1912-09-17

Description

U ITED STATES PATENT Pricey.

I HENRY E. SHAFFER, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE SHAFFER'LAMP COMPANY, OF SAME PLACE.

LAM P.

SPECIFICATION forming part of Letters Patent No. 546,435, dated September 17, 1895.

hpplicatiou filed July 18, 1894. Serial No.517,626. (N0 model.) I

To an whom it may concern:

Be it known that I, HENRY E. ,SHAFFER, of.

Rochester, in thecounty of Monroe and State of New York, have invented a certain new and useful Improvement in Lamps, of which the following is a specification.

My improvement; relates to center-draft lamps; and the invention consists in the construction and arrangement of parts hereinafter described and claimed.

In the drawings, Figure 1 is a central vertical section of the lamp. Fig. 2 is a crosssection of same in line mm of Fig. 1.

A indicates the fount, which may be of any desired form.

B is the base; 0, the burner, and D the wick-tube, the latter extending some distance below the fount, as shown. The wick rests outside this wick-tube and is exposed directly to contact with the oil throughout the fount. a is the lower section of an exterior tube, and (1 an upper section of such exterior tube. The lower section a extends from the bottom of the fount down as far as the lower end of the interior tube D, and is connected therewith so as to close the space between the two tubes and form a well or chamber below the bottom of the fount, which well or chamber receives the lower end of the wick, also oil from the fount. Said chamber stands outside the interior tube, by which means the wick extends in a straight length from bottom to top, thereby insuring freedom of movement to the wick in moving up and down. The upper section cl of the exterior tube forms an integral part of the burner C, and is removable with the latter from the top of the fount. In the drawings the lower end of the burner C is shown fitted removably in a circular flange at the top of the fonnt. The section d is located at such a distance from the interior tube D that the wick passes loosely through the space between the tubes, by which means it is moved freely up to supply combustion,

and in applying the wick in place it is entirely.

removed from the lamp, leaving the whole space open, so that the wick can be readily inserted over the interior tube and moved downward. The space between the lower section a and the interior tube is also of such size that when the wick is inserted in the lamp its lower end passes readily down into the oil-chamber below the fouut. -By this construction not only is the wick readily inserted and removed, but by making the break in the exterior tube heat is prevented from passing downward through said exterior tube. The advantages are obvious over those lamps having two tubes extending entirely through the fount, in which case it is very diificult to insert the wick, and heat is conducted directly down into the fount. This invention is equally applicable to those center-draft lamps in which the upper tube-section d is removable from the top of the fouut independently of the burner C.

The exterior tube-section a. is provided with a bead p, and the tubular stem of the hollow base B is extended up to the bead, covering the lower end of the wick-tube and secured thereto. Above the bead is a brace J, preferably having holes through its sides through which air can pass to cool the tube. In high lamps two beads may be used, the base extending up to the first one and the brace extending upward from the second one. The tubes are secured to the base by solder or any other suitable means. The space of the tubes and fount covered by the brace J is imperforate and closed, and none of the air which passes through the brace passes upward into the lamp, but simply surrounds the tubes and fount and circulates in the inclosed space and keeps the parts cool.

By the construction above described, the base simply incloses the lower end of the oil and wick chamber, and the latter is exposed to cold air both above and below the attachment of the base thereto and the use of tie rods and other complicated parts is avoided.

Having described my invention, I do not claim simply and broadly double tubes extending below the bottom of the fount, nor do I claim double tubes extending through the fount and inclosing the wick, but

YVhat I claim as new, and desire to secure by Letters Patent, is-- 1. A central draft lamp having an interior wick tube extending from the burning point to some distance below the fount, an exterior wick tube in two sections, the upper section extending to the top of the interior tube and removable therefrom, the lower section extending from the bottom of the fount and connected with the interior wick tube to form a wick and oil chamber below the fount, the two exterior wick tube sections being separated in the fount to directly expose the wick to the oil, and a hollow base havinga tubular stem embracing a portion of the exterior wick tube and secured thereto, the said exterior wick tube being exposed to the air above and below the tubular stem of the base, as herein shown and described.

2. A central draft lamp having an interior wick tube extending from the burning point to some distance below the fount, an exterior wick tube in two sections, the upper section extending to the top of the interior tube and removable therefrom, the lower section extending from the bottom of the fount and connected with the interior wick tube to form a wick and oil chamber below the fount, the two exterior wick tube sections being separated in the fount to directly expose the wick to the oil, the lower exterior wick tube being provided with a bead, and ahollow base having a tubular stem embracing a portion of. the exterior wick tube and abutting against the bead, the said exterior wick tube being exposed to the air above and below the tubu- Y lar stem of the base, as herein shown and described.

3. A central draft lamp having an interior wick tube extending from theburning point to some distance below the fount, an exterior wick. tube in two sections, the upper section extending to the top of the interior tube and removable therefrom, the lower section extending from the bottom of the fount and connected with the interior wick tube to form a wick and oil chamber below the fount, the two exterior wick tube sections being separated in the fount to directly expose the wick to the oil, a hollow base having a tubular stem embracing a portion of the exterior wick tube and secured thereto above the lower end thereof to expose the lower end of the wick tube to the air, and an exterior brace above the base joined at one end to the exterior wick tube and at the other to the fount, as shown and described and for the purpose specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses HENRY E. SHAFFER.

Witnesses:

R. F. OSGOOD,

A. J. ARMSTRONG.