Improvements in Central Draft Lamps.
Year: 1895

page_text: [Communicated from abroad by CHARLES STANFORD UPTON, of 37 Barclay'
Street, New York, U.S.A., Manufacturer.]
Improvements in Central Draft Lamps.
I SAMUEL SIDNEY BROMHEAD of 97 Newgate Street London Patent Agent
do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :--
My invention relates to that class of lamps known as 'Argand or central-draft-
lamps and the object of same is, to provide means whereby the leakage of oil down
the inside of the central draft tube, will be absolutely prevented.
This accomplish by surrounding the top of the central draft-tube, which also
forms the inner wall of the wick-chamber, with a suitable oil-catching ring, which
causes all oil which escapes from the top of the wick to be returned into the oil-
font, and the construction used by me to accomplish this result is fully shown and
described in the following Specification of which the accompanying drawing
forms a part wherein similar letters and numerals of reference designate like or
equivalent parts, and in which :
Figure 1, is a view in central vertical section of an Argand or central-draft
burner of my improved form, in position upon the oil-font, and with the lamp-wick
in position therein;
Figure 2, is a like view of the central draft-tube thereof with the oil-catching-
ring in position thereon; and
Figure 3, is a view in perspective of such oil-catching-ring.
Referring to the drawing:
The reference letter A designates the oil-font, while B is the burner, C is the
central-draft-tube, which extends upward through the oil-font A, and is preferably
provided at the top with a portion 2, of smaller diameter than the bottom portion of
such wick-tube, so formed as to leave an exterior annular shoulder 3, and surround-
ing this narrowed upper portion 2 and resting upon the annular shoulder 3 is the
oil-catching-ring D, which is preferably of the form shown, and is of somewhat
larger diameter than the small top portion 2 of the central-draft-tube, and the said
ring is formed preferably of sheet brass or other suitable spring-metal, and is
provided with certain narrow inwardly bent vertical strips 4, preferably three in
number, lying between suitable slots 5, as shown, which serve to center the ring D
upon the narrow top portion of the wick-tube, so that the centers of such ring and
tube are coincident, whereby a small annular space 6 is left between the ring Ď and
the central-draft tube. When in place the wick E fills the space lying between the
outer-wall of the wick-chamber and the ring D, and such wick has its upper end
ordinarily projecting slightly above the top of said ring D, as shown in Fig. 1,
while the air-distributing-cone or timble G, fits preferably within the central-draft
tube.
By this arrangement it will be seen that all oil which flows over inward from the
top of the wick will flow on to the top of the oil-catching-ring D, and down the
inner side of same and return to the wick through the openings or slots 5, and as
the wick is never in contact with the top of the central-draft tube, no oil will ever
come in contact therewith.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a central-draft-lamp, an oil-catching-ring D, mounted upon the central-
draft tube, substantially as shown and described.
2. In a central-draft-lamp, an oil-catching-ring D having the slots 5 and strips 4,
mounted upon the central-draft tube, substantially as and for the purposes set
forth.
3. In a central-draft-lamp, the combination with a central-draft tabe having a
contracted top portion, of an oil-catching-ring D, supported upon the contracted
portion of the draft-tube, substantially as shown and described.
Dated this 9th day of July 1895
S. S. BROMHEAD,
97 Newgate Street, London, Patent Agent.