Year: 1895

page_text: Date of Application, 1st Apr., 1895
Complete Specification Left, 27th May. 1895-Accepted, 29th June, 1895
We, JOHN LIND and JAMES DUNCAN GILLIES LIND, both of 61, Great
George Street, Liverpool, in the County of Lancaster, Lamp Manufacturers,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to oil lamps which are suspended from ceilings
and other places, such as hall-lamps and similar lamps, and relates especially to
that type of lamp wherein the base which contains the burner portions is adapted
to be lowered and raised independently of the outer or glazed frame, for the
purpose of facilitating the operations of lighting and trimming.
In a lamp according to this invention two or more upright rods rising from the
floor or base-ring containing the lamp, pass through guiding staples or clips
formed within the outer or glazed casing. From the upper ends of these rods
chains or cords lead over pulleys carried in a bracket attached to the main rod or
tube which depends from the ceiling and carries the outer or glazed frame. The
other ends of these chains or cords are attached to an annular weight adapted to
encircle and slide upon such main supporting rod or tube. The annular weight
thus forms a counterbalance to the oil reservoir and burner portions. Should the
chains or cords break, the clips above referred to act as checks to prevent the
lamp from falling to the ground.
The chains or cords which connect the guide rods rising from the lamp floor
with the annular weight may be open to view, or a single chain or cord may be
used and disposed within the main supporting tube. In this case a single pulley
ouly is required and is carried in a bracket or suitable device at the upper part of
the supporting tube. One end of the single chain or cord is suitably attached to
the guide rods of the lamp floor (which rods may be arched or otherwise connected
for this purpose) the other end being attached to a projection formed upon the
annular weight, which projection travels in a vertical slot formed in the main
supporting tube.
It will be understood that we do not confine ourselves to the arrangements and
dispositions of the weight, pulleys, and connecting chains or cords above described,
as these may be varied to suit different requirements.
100-
J. A. COUBROUGH,
Registered Patent Agent, 10 St. George's Crescent, Liverpool,
Agent for the Applicants.
We, JOHN LIND and JAMES DUNCAN GILLIES LIND, both of 61, Great
George Street, Liverpool, in the County of Lancaster, Lamp 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:-
This invention has reference to oil lamps which are suspended from ceilings

page_text: and other places, such as hall-lamps and similar lamps, and relates especially to
that type of lamp wherein the base ring which carries the oil container and burner
portions is adapted to be lowered and raised for lighting and trimming.
In a lamp according to this invention the base-ring is carried by an arched
guiding rod or rods passing through staples or clips formed within the glazed
portion. From this rod or rods chains or cords lead over pulleys carried in a
ceiling plate or bracket attached to the suspending rod or tube. The other ends
of these chains or cords are attached to an annular weight adapted to surround and
travel up and down such suspending rod or tube. The annular weight thus forms
a counterbalance to the oil container and burner portions.
The chains or cords which connect the container portion with its counterbalance
weight are in the above example open to view, but in a modified arrangement a
single chain or cord may be employed and disposed within the suspending tube.
In this case a single pulley only is required. One end of the single chain or cord
is attached to the guide rod of the container portion, the other end being attached
to a projection formed upon the annular weight, which projection travels in a
vertical slot formed in the main supporting tube.
In the drawing hereto annexed,
Figure 1 represents a ball-lamp according to this invention, the container portion
being shewn partly withdrawn from the Exed glazed portion.
Figures 2, 3 and 4 are detail views of a modification under this invention.
With reference to the drawings, a is the fixed glazed portion of the lamp,
suspended from the ceiling by the rod or tube b. c is the base-ring of the lamp,
carrying the oil container and burner portions. Attached to the ring c are the
arched guiding rods d d, to which are fastened, by means of the eyelets jj, two
chains e e passing over pulleys ff carried by the ceiling plate g, the other ends of
the chains being attached to the annular weight arranged to travel up and down
the rod or tube b.
The weight acts as a counterbalance to the weight of the oil container portion
of the lamp, and travels up and down the rod or tube b as the oil container is
withdrawn from and returned to the fixed glazed portion of the lamp.
In the modification shewn in Figures 2, 3 and 4, the oil container portion and
weight are suspended by a single cord or chain e, disposed within the tube b.
In this arrangement a single pulley is required and is carried in the supporting
loop attached to the upper end of the tube b. The weight is provided with a
projection passing through the vertical slot in the tube b, to which is
fastened the cord or chain e.
It will be obvious that we may, without departing from the scope of this
invention, vary the shape of the sliding container portion of the lamp and the
arrangement of pulleys and chains, and also employ two or more suspending rods
or tubes and suitable counterbalance weights. For instance such weight or
weights may if prefered hang independently of the suspending rods or tubes, or
two suspending rods or tubes may be employed and the counterbalance weight
arranged to travel up and down between them.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In an oil lamp such as an ordinary ball-lamp in which the fixed glazed portion
is suspended by means of a rod or rods, or a tube or tubes, sustaining the container
portion of the lamp by means of chains or cords passing over a pulley or pulleys
and attached to a counterbalance weight or weights in such a manner that the
container portion may be lowered and raised independently of the fixed glazed
portion, for trimming and lighting.
2. In a hall-lamp or suspending lamp of the type described, the combination of
a counterbalance weight sliding upon a central rod or tube with a sliding oil
container portion, as and for the purposes specified.

page_text: 3. The particular arrangement and disposition of parts described with reference
to Figures 1, 2, 3, and 4, of the drawings, for the purposes specified.
Dated this 23rd day of May 1895.
J. A. COUBROUGH,
Registered Patent Agent, 10 St. George's Crescent, Liverpool,
Agent for the Applicants.