212 
extends through the whole length of the handle, being con¬ 
cealed in its bottom, to the distance of three or four lines 
from its extremity, where it terminates. Another pipe sim¬ 
ilar to this and open at both its extremities, is inserted high¬ 
er up in the same partition and entering horizontally into 
the handle, is attached to its top. 
The only caution necessary in filling the reservoirs, is 
this, to pour the oil slowly, so as to give the handle time to 
fill by its lower horizontal pipe, whilst the air may escape 
without obstacle by the one above. This precaution is in¬ 
dispensable, for if in pouring in the oil rapidly, the circular 
reservoir should be suddenly filled, and the openings of 
the two pipes, enclosed in the handle, inundated, the air 
would be prevented from passing out at the cavity of the 
handle, through the superior pipe, and of course hinder the 
oil from passing freely by the lower one. 
When the two reservoirs are filled, the hole through 
which the oil is poured, is closed hermetically with its stop¬ 
per. The oil passes from the circular reservoir to the wick 
pipe by a tube two lines in diameter, which descending ob¬ 
liquely to the flat bottom of the reservoir, passes across the 
partition of the supporter and goes to join the wick pipe, at 
the distance of about two inches below its upper extremity. 
The oil enters into the wick pipe through a very small 
aperture, on the side opposite to that on which the handle 
is, and the small tube which carries it serves, along with 
another, not perforated, to fix the wick pipe in its place on 
the axis of the upper part of the supporter. 
In order to hide the small tube which carries the oil, and 
to give at the same time a handsome form to the lamp, that 
portion of the supporter which is immediately above the 
level of the bottom of the circular reservoir, is covered with 
a trumpet formed tube, two inches in length, three inches 
and six lines in diameter at the top, where it is soldered to 
the bottom of the circular reservoir, and sixteen lines in di¬ 
ameter at the bottom, where it is united to the supporter, 
and with which it appears to form one piece. 
