Year: 1888

page_text: I ALBERT SANDERS of Hockley Street, Birmingham in the county of Warwick
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 oil, spirit, or other similar lamp fittings, in which the lamp
itself is made capable of detachment from the said fitting, for filling, trimming,
cleaning, or lighting &c.; and the objects of my improvements are to provide
mechanism upon such lamp fittings, whereby the lamp can be readily and easily
placed in its position, or be removed therefrom, and also whereby the said lamp
shall be securely held when in position, and is applicable to hall or lobby lights
fittings, chandeliers, brackets, ships lamps, or other similar fittings, which admit of
the lamp being passed upwards into such fitting.
I attain these objects by the mechanism illustrated upon the accompanying sheet of
drawings, upon which are figures and letters of reference, similar letters denoting the
same thing or part throughout the several views.
For the sake of illustration and description I have shown it as applied to what is
known as a square hall or lobby lantern.
Fig. 1, being a side elevation, showing lamp in position.
Fig. 2, is a plan of Fig. 1.
Fig. 3, shews the position of the mechanism, when the lamp is being passed into its
place.
Fig. 4, is a plan of Fig. 3.
Fig. 5, is a front elevation of Fig. 1, in the direction of the arrow, shewing the
mechanism, but with the lamp removed.
a, is the lamp, b the frame or fitting, which in this case would usually be suspended
from the ceiling, its sides being fitted with glass panels &c., of more or less artistic
design.
Upon the lower part of the frame b, I provide bearings c, c, by means of the plate
or bracket d, which is soldered, rivetted, or otherwise suitably attached to the said
frame.

page_text: These two bearings are preferably placed some little distance apart; I then provide
semi trunnion rings e, having journals at their ends, which enter into, and rock upon
the bearings c, c.
These semi trunnion rings are further cranked downwards near the journals,
so that the semi ring part, assumes an horizontal plane, a little lower than the
bearings.
The purpose of this is, that when the outer portion fis lifted, the semi trunnion
rings also open wider, to admit of the lamp passing through, as seen in Fig. 3.
Again, in order to the more readily open the semi trunnion rings e, to receive the
lamp a, I provide upon their downward bent portions, or other suitable position, the
armis g, g, or their equivalents, which are rigidly connected thereto.
Upon their outer ends I further provide knobs or pushers h, h.
These arms 9, 9, are so arranged that when the two knobs are pressed inwards
towards each other, they shall pass freely by each other. Thus by means of the
thumb and finger, the knobs may be brought together, and thereby the semi trunnion
rings opened to receive the lamp.
Upon the inside of the arms 9, 9, are studs or stops i, i, by which the downward
bent part of the one semi trunnion ring, rests against the stud or stop upon the arm
connected to the opposite semi trunnion ring.
By these studs or stops i, i, the two semi trunnion rings, are prevented from
approaching each other nearer than their circular line (in plan), or, but a little less
than such circle.
It will now be readily understood, that upon the lamp a, (or other lamp having a
projection, belt, ring, or flange k, upon its exterior, being pushed up into its place, as
seen in Fig. 3, until the flange k, has passed the semi trunnion rings, the said rings
would then assume their normal position, and the flange k would rest thereon, the
weight of the lamp tending strongly to prevent the opening of the semi truunion rings
except at will.
In addition thereto, however, I may if desired, provide a spring or springs to keep
them closed; as for instance, I may place a spiral spring 1, and connect its ends to
each semi trunnion ring; or, if preferred, suspended weights n, (shown in dotted
lines, see Fig. 1) may be attached at f, which may also be made to contribute to the
artistic design of the fitting.
In some cases I may provide upon the flange k, two or more clips or hooks m
(shown in dotted lines, see also Fig. 1), so that the lamp must be lifted a certain
height before the semi trunnion rings can be opened.
By these means a detachable lamp can be readily, and in a simple manner, placed.
in the fitting, or taken therefrom.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
Suspending oil or other similar lamps, from their fittings, by means of the semi
trunnion rings, constructed, operated, and acting, substantially as hereindescribed and
illustrated, and for the purposes specified.
Dated this 29th day of March 1888.
CHARLES T. POWELL,
12, Cherry Street, Birmingham,
Applicant's Agent.