WHY DO Lamps.
Year: 1897

page_text: WHY DO Lamps.
We, WALTER DARBY, ION DARBY and JOHN HENRY PUNCHARD, all of 249 Pen-
tonville Road, London, N. Manufacturers, do hereby declare the nature of this
invention to be as follows:-
In oil lamps (particularly with petroleum burners) a small amount of the oil often
escapes from the outlet of the wick tube (or tubes) and trickles down such tube
and this escape or "sweating is the cause of much inconvenience and is a great
drawback in some lamps.
وو
Now according to this invention we provide simple means of collecting any such
escaping oil and returning same into the reservoir or into the wick tube or into
any other desired receptacle as follows:-
On the exterior of the wick tube (whether same be for a flat wick, circular wick,
or other type or shape of burner) we arrange and provide a gutter or channel
advantageously a narrow shallow gutter either forming a continuous channel all
round (and in a circular wick burner both inside and outside the wick tube) or
partly around same or several such gutters may be used and arranged in any
suitable manner and such gutter or gutters may for instance be arranged just
below the top of the wick tube and have a hole or holes leading from said channel
or gutter or gutters through the side of the wick tube into the interior of the
latter that is whatever overflow or oil is collected in said gutter or gutters is thus
returned on to the wick and passes up same again to the point of combustion;
or instead of the foregoing the overflow or oil collected in said gutter or gutters
may be led through a special pipe direct back to the oil reservoir of the lamp
or to any other desired receptacle.
These improvements may be applied to vertical or slanting flat wick tube or
tubes or to circular or other desired form of burner.
2011
TONGUE & BIRKBECK
Southampton Buildings. Chancery Lane. London. W.C.
Agents for the Applicants.

page_text: 86
Improvements in or relating to the Burners of Oil Lamps."
We, WALTER DARBY, ION DARBY and JOHN HENRY PUNCHARD, all of 249 Pen-
tonville Road, London, N. Manufacturers, 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:-
In oil lamps (particularly with petroleum lamps) a small amount of the oil often
escapes from the outlet of the wick tube (or tubes) and trickles down such tube
and this escape or sweating" is the cause of much inconvenience and is a great
drawback in some lamps.
«
Now according to this invention we provide simple means of collecting any such
escaping oil and returning same into the reservoir or into the wick tube or into
any other desired receptacle as follows:-
On the exterior of the wick tube (whether same be for a flat wick, circular wick,
or other type or shape of burner) we arrange and provide a gutter or channel
advantageously a narrow shallow gutter either forming a continuous channel all
round (and in a circular wick burner both inside and outside the wick tube) or
partly around same or several such gutters may be used and arranged in any
suitable manner and such gutter or gutters may for instance be arranged just
below the top of the wick tube and have a hole or holes leading from said channel
or gutter or gutters through the side of the wick tube into the interior of the
latter that is whatever overflow or oil is collected in said gutter or gutters is thus
returned on to the wick and passes up same again to the point of combustion;
or instead of the foregoing the overflow or oil collected in said gutter or gutters
may be led through a special pipe direct back to the oil reservoir of the lamp
or to any other desired receptacle.
These improvements may be applied to vertical or slanting flat wick tube or
tubes or to circular or other desired form of burner.
+ In the accompanying drawings we have illustrated our present invention as
carried out with flat wick burners.
Fig 1 is a side elevation of a flat wick tube having our present improvements
applied.
Fig 2 is a plan of Fig 1.
- Fig 3 is a vertical sectional view on line 3-3 Fig 1.
a is a shallow gutter or trough which in this arrangement is mounted on the
wick tube b just above the wick-raising device c so that any oil escaping over
the lip of the tube and trickling down the side of said tube consequently
passes into the gutter a and thence is passed back into the wick tube b through
apertures such as x Fig 3 or if desired any oil collected in the gutter a may be
led back by a separate tube (not shown) direct into the reservoir.
Fig 4 is a side elevation, Fig 5 a plan, and Fig 6 a vetical sectional view on
line 6 6 Fig 4, of a slightly modified arrangement viz: an ordinary flat-wick
tube has our trough or gutter a arranged in this case below the wick-raiser c-.
apertures such as a being provided if desired as shown in Fig 6 to allow oil
collected in the trough a to pass back into the wick-tube 6 or such oil may be
conducted back direct into the reservoir if desired.
is the ordinary flange or means by which the wick tube is screwed soldered
or otherwise fixed to the reservoir.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:
1. In oil lamps-the combination and arrangement on the exterior of the wick

page_text: tube of a gutter or oil-collecting device such as a substantially in the manner and
for the purposes hereinbefore set forth.
2. The herein-described improvements in or relating to the burners of oil
lamps substantially as and for the purposes specified and illustrated in the draw-
5ings hereunto annexed.
100K
TONGUE & BIRKBECK
Southampton Buildings. Chancery Lane. London. W.C.
Agents for the Applicants,