Improvements in the Raising and Lowering of Lamp Galleries.
Year: 1886

page_text: Date of Application, 13th Sept., 1886.
Complete Left, 21st Apr., 1887.
Complete Accepted, 24th May, 1887.
PROVISIONAL SPECIFICATION.
Improvements in the Raising and Lowering of Lamp Galleries.
I, FRANCIS ROBERT BAKER of Arcade Chambers Snow Hill Birmingham in the
County of Warwick, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to that class of lamps in which the gallery or globe holder is
supported and carried by rods depending from the underside of the said holder, and
which said rods slide freely within vertical guide holes or tubes, situated in the middle
of the fixed burner part of the lamp; and the object of my said invention is to
facilitate the raising and lowering of the said galleries or globe holders, for the
trimming of the wick or wicks, the refilling of the oil reservoir and the lighting of
the lamp; and my improvements consist essentially in raising and lowering lamp
galleries of the kind described, by means of an arm or lever or its mechanical
equivalent, through the intervention of a chain or cord secured to the lower portion of
the movable part; by which means, the gallery and parts supported by it are raised,
lowered and secured in position in a simple and efficient manner.
In carrying out my invention, I take an ordinary burner and lamp gallery, the
latter being provided with depending rods which work and slide freely within short
tubular sockets secured within the fixed part of the burner; and to the lower portion
of the said movable part, or to the lower extremities of one or both of the guide rods,
the lower end of a chain or flexible cord is connected, while the upper end of the said
chain or cord is secured to the short arm of a lever, which turns about a pin or centre,
supported by a bracket, secured on the outside fixed burner part, a little below the top
edge of the burner.
The end of the short arm is broader than the other part, and is provided on its
outside edge with a shoulder or notch, which engages with, and comes upon the top
edge of the burner body, when the gallery is fully raised.
The bearing of the lever surrounding the joint pin is a little elongated, which gives
a little vertical play to the lever, on the securing of the gallery in its raised position.

page_text: To raise the gallery, when the lamp is in its normal position, depress the long end
of the lever, when the chain or flexible cord attached to its short arm, pulls up the
rods and raises vertically the gallery; and when the said gallery is in its fully raised
position and the lever liberated, the shoulder or notch on the outside edge of the short
arm, is made to engage and catch upon the top edge of the burner body by the slight
falling of the lever, allowed for by the slightly elongated bearing.
The catching of the lever and the suspending of the gallery, only takes place when
the lever is vertical or nearly vertical with respect to the gallery.
To lower the gallery, slightly pull outwards the lever, when the catch end is
liberated or removed from the edge of the burner, when the raised parts are lowered
to their normal positions by gravity.
The automatic suspension of the gallery, may be effected by bringing the centre of
the lever inwards; so that when the gallery is fully raised, the short arm of the lever
is outside or over the centre, which causes the pull of the weight to be taken on the
reverse side, thereby suspending the parts without catches.
Dated this Tenth day of September 1886
FRANCIS ROBERT BAKER.
By Henry Skerrett,
6, Livery Street, Birmingham,
Agent for the Applicant.

page_text: the movable part; by which means, the gallery and parts supported by it are raised,
lowered and secured in position in a simple and efficient manner.
In carrying out my invention, I take an ordinary burner and lamp gallery, the
latter being provided with a depending rod and loop, and which former works and
slides freely within a short tubular socket secured within the fixed part of the burner;
and to the lower portion of the said movable part, or to the lower extremity of one of
the guide rods, the lower end of a chain or flexible cord is connected, while the upper
end of the said chain or cord is secured to the short arm of a lifter, which turns about
a pin or centre, supported by a bracket, secured on the outside fixed burner part, a
little below the top edge of the burner.
The end of the short arm is broader than the other part, and is provided on its
outside edge with a shoulder or notch, which engages with, and comes upon the top
edge of the burner body, when the gallery is fully raised.
The bearing of the lifter surrounding the joint pin is a little elongated, so as to give
a little vertical play to the lever, on the securing of the gallery in its raised position.
To raise the gallery, when the lamp is in its normal position, depress the long end
of the lifter, when the chain or flexible cord attached to its short arm, pulls up the rod,
and raises vertically the gallery; and when the said gallery is in its fully raised
position, and the lifter liberated, the shoulder or notch on the outside edge of the
short arm, engages and catches upon the top edge of the burner body, by the slight
falling of the lifter allowed for, by the slightly elongated bearing.
The catching of the lifter and the suspending of the gallery, only takes place when
the lifter is vertical or nearly vertical, with respect to the gallery.
To lower the gallery, slightly pull outwards the lifter, when the catch end is
liberated or removed from the edge of the burner, when the raised parts are lowered
to their normal positions by gravity.
I will now proceed to describe with reference to the accompanying drawing, the
manner in which the same is to be performed.
Figure 1 represents in longitudinal vertical section a portion of a lamp, or a lamp
burner, provided with improvements constructed according to my invention, with the
gallery and burner part represented in their lowered positions-Figure 2 represents
the same with the cone or burner part and gallery raised from the wicks or burner
body, for the lighting of the lamp, or for the trimming of the said wicks, or the
refilling of the oil reservoir, through the body of the burner-Figure 3 is a side
elevation of a portion of the burner body.
The same letters of reference indicate corresponding parts in figures 1, 2 and 3 of
the drawing.
a is an ordinary burner body of a lamp, b is the gallery and c the burner cone,
combined with, and moving with the gallery; and upon the underside of which said
gallery and cone, (with the flame slit within it) a guide rod d (upon one side) is
conducted, and passes through the body of the lamp burner-The other side of the
lamp is provided with a loop e, having an eye e² sliding over a fixed conducting
rod f g is a chain or flexible cord attached at its lower end to the guide or guide
rod d, while the upper end of the said chain or flexible cord is attached to the short
arm 2, of a lifter h, which turns about a pin or centre i as a fulcrum; and which said
lifter is supported by a bracket j-The bearing 3 of the lifter is slightly elongated,
to admit of its slightly rising and falling, on the affixing of the gallery in its raised
position as represented in figure 3.
The extreme end of the said short arm h² is made with the shoulder h4, which drops
upon the edge a² of the body of the burner a, thereby affixing the gallery in its raised
position-k, k, are the wick tubes, through which the wicks pass.
To raise the gallery and burner b, c, in order to gain access to the wicks, depress
the long end of the lifter h, when the chain or flexible cord g attached to the short
arm, pulls up the rod d, and with it the gallery and cone; and when the said gallery
is in its fully raised position, and the lifter liberated, the shoulder of the short
arm 2 drops upon the top edge a² of the burner body, thereby holding the gallery in

page_text: its raised or elevated position; the rising and falling being allowed for, in consequence
of the bearing being elongated.
To lower the gallery, pull outwards the lifter, when the catch end is liberated, by
forcibly drawing the shoulder part, over the top edge of the burner; and when thus
liberated, the parts resume their normal positions by gravity.
Figure 4 represents a modification, in which the gallery is raised and lowered
through the intervention of a chain alone, without employing a lifter.
a is the burner body, d is a guide rod, and g the chain, with a loop or link g²-i is
a roller turning upon an axis, and m is a hole in the burner body, through which the
chain or cord is drawn-n is a hanging peg at the top of the said hole, and with which,
the loop or link g² engages, on the gallery being fully raised.
.
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―
First. Raising and lowering lamp galleries or globe holders, by means of a
combined chain 9, and lifter h, the latter turning upon a pin or centre, while the
former is connected at its lower end to a guide or guides, carried or depending from
the part or parts to be raised or lowered; and which said gallery or globe holder is
locked or secured in its elevated position, by the shoulder h, near the short end h² of
the said lifter, engaging on, or upon the top edge a² of the rim of the burner body-
The engagement and disengagement of the said shoulder with the rim is permitted,
by the movable or elongated bearing hole h³, allowing the lifter to slightly rise and
fall, substantially as described and illustrated in figures 1, 2 and 3.
Secondly Raising and lowering lamp galleries or globe holders, by a chain or
flexible cord g, passing over a roller i, and which said chain is provided with a loop
link g², which engages with a hanging peg n at the top of hole m, on the said gallery
being fully elevated, substantially as set forth in figure 4.