Year: 1885

page_text: I WILLIAM HENRY SLEEP, of St Germans, in the county of Cornwall, Implement
manufacturer do hereby declare the nature of this invention be as follows:-
This invention relates to improvements in that class of oil lamps in which the
lamp is enclosed within a pendent lantern and which when the lamp has to be
removed for trimming or otherwise it has hitherto generally been necessary to pass
the lamp up through the open top of the lantern or through a door.
According to my invention I suspend the lamp within the lantern on vertical
runners adapted to move on guides suitably fixed in the lantern the said runners
or the guides being provided with suitable catches so arranged as to fix the lamp
in position.
By this arrangement when it is required to remove the lamp for trimming or
otherwise it is simply necessary to release the said catches and the lamp can be
lowered through the bottom of the lantern and will be suspended at a distance
therefrom suitable stops on the runners limiting the downward movement of the
lamp; in this position the lamp can be trimmed or otherwise or it can be removed
from the suspending runners.
:

page_text: I, WILLIAM HENRY SLEEP of St Germans, in the County of Cornwall, Implement
Manufacturer, 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 :-
This invention relates to improvements in that class of oil lamps in which the
lamp is enclosed within a pendent lantern and in which when the lamp has to be
removed for trimming or otherwise it has hitherto generally been necessary to pass
it up through the open top of the lantern or through a door, or the lamp has been
arranged to be removed through the bottom of the lantern by being suspended
within the lantern by means of chains passing over pulleys fastened to the ceiling,
or the lamp has been placed on a hinged door in the bottom of the lantern.
According to my invention I suspend the lamp within the lantern on vertical
runners adapted to move on guides suitably fixed in the lantern, the said runners
or the guides being provided with suitable catches so arranged as to fix the lamp
in position, no compensating weights being required.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawing in which figure 1 represents an
elevation and figure 2 a vertical section of an oil lamp constructed according to my
invention, the lamp being shewn in its raised position within the lantern; figure 3
is a horizontal section on line A B of figure 1; figure 4 is a similar view to figure 2
but showing the lamp in its lowered position. Similar letters in all the figures
represent similar parts.
a, represents the lamp properly so called which is of any suitable construction
and b, the lantern for receiving and enclosing the same; c, c, are the vertical
runners on which the lamp a is suspended, the oil reservoir of the latter resting in
a frame d, fixed to the lower ends of the runners c; e, e, are the guides on which
the runners c move, the guides being fixed to the upper and lower parts of the
frame of the lantern b, as shewn in the drawing; the runners are conveniently
formed of semi-tubular metal embracing the guides e, which are circular or tubular
in cross section; each runner has an eye f, at its upper end encircling the guides e,
which eyes also form stops for limiting the downward movement of the runners by
resting on projections g g, on the frame of the lantern b when the lamp a, is
lowered as shewn in figure 4; hh are the catches serving to fix the lamp a in its
closed position; the said catches are pivotted on the frame d, and when the
runners c, carrying the lamp a, are raised within the lantern b, pass through
holes ii, in the projections g g; the catches h h are weighted as shown at 11, so
that they automatically pass into position over the edges of the holes ii and
thereby fix the lamp as shewn in figures 1, 2, and 3.
By this arrangement the parts being in the closed position as shewn in figures 1,
2, and 3, when it is required to remove the lamp a for trimming or otherwise it is
simply necessary to release the catches h, h, from the projections g. g. and the lamp
can then be lowered through the bottom of the lantern b, and will be suspended
at a distance therefrom as shewn in figure 4, the stops or eyes f on the runners o

page_text: limiting the downward movement of the lamp as hereinbefore described; in this
position it will be obvious the lamp can be trimmed or otherwise or it can be
removed from the frame d on the suspending runners c.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is ;-
1. In an oil lamp of the class herein referred to the use of runners and guides
for suspending the lamp properly so called within the lantern and allowing the
same to be lowered through the bottom of the lantern and to be rigidly suspended
at a distance therefrom substantially as herein before described.
2. In an oil lamp of the class herein referred to the combination with runners
and guides for the purpose set forth of the herein described automatic catches
serving to hold the lamp properly so called in position within the lantern
substantially as herein before described.
3. The improved oil lamp hereinbefore described and represented in the accorn-
panying drawing.