Year: 1887

page_text: Date of Application, 3rd Nov., 1887
Complete Left, 15th June, 1888
Complete Accepted, 27th July, 1888
I FRANCIS ROBERT BAKER of 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 the extinguishing of hydro-carbon or other oil or spirit
lamps, automatically or at will, and the object of my improvements are first to provide
suspending bell cranked weighted levers, which when the lamp deviates from the
vertical position, shall operate upon the sliding extinguisher and secondly to provide
upon and in conjunction with the said sliding extinguisher a trip action, is that when
the said extinguisher has reached a certain point in its travel, a projection from its flap
or cover comes in contact with a fixed body, which causes the said flap to effectually
cover the wick and put out the light.
In carrying out my invention I should proceed somewhat thus:-Upon the wick
tube or tubes I mount an extinguisher similar to those in ordinary use that is consisting
of a sliding box fitted with an hinged flap or cover. At or near the base of this box
or slide I form a flange or its equivalent.
Again. At or near the side of the body of the burner, and preferably immediately
underneath the gallery ring I form joints to receive three or more bell cranked levers
around its circumference.
Q
The one part of these levers would pass into the interior of the burner and lie
underneath the aforesaid flange upon the extinguisher while the other part would
hang vertically upon the exterior of the burner, having at its lower end a weight &c.
such as a ball &c.
These levers would thus swing in a vertical plane and radiate to or near the centre
of the burner.
As I have before remarked 1 should use three or more of such weighted levers, and
generally should prefer to use six, such lovers hanging around the burner would improve
the design effect of the lamp.
It will thus be seen that upon the lamp being turned out of the vertical line one or
more of such weights or balls would fall towards the burner and in doing so lift
the sliding extinguisher upon the wick tube, and if such tilting be carried sufficiently

page_text: far would so far raise the said extinguisher as to reach the top of the said wick tube.;
or as will be equally readily seen, either one of these weights or balls may be depressed
by hand from the outside, to put out the light.
The attachment of the balls or weights at the lower end of the cranked levers is a
simple method but I should prefer to dispense with the weights and form at such
extremity of the levers a loop.
I then provide a heavy ring which is threaded around through each of theso loops
and hangs therein. Plenty of play or room is made in the loops to allow of the free
movement of the ring.
It will now be seen that when the lamp is tilted the ring immediately apparently
falls to the one side and in doing so carries with it the lever or levers upon the upper
side while it merely slides through those on the side, and by reason of the room or
play allowed does not interfere with the loop upon the opposite side. Thus the
extinguisher is lifted to the top of the wick tube similarly as before described and for
the same purpose.
Again. I further provide a trip action in connection with the extinguisher flap
or shutter after the following manner: connected to the hinged shutter or flap is a
projection or arm, which stands out a little distance therefrom, and in conjunction
with this projection or arm I provide a check or catch piece, which is a fixture, and
may be carried up from the cone of the burner pillarwise and bent at right angles at
the top, hook fashion. Thus when the extinguisher lifted to the top of the wick
tube, just prior to the end of the said lift, the arm upon the shutter is caught by the
catch and the shutter closed over the wick.
This trip motion enables me to dispense with springs &c. up the shutter for
closing it, and so to leave, the slide more free to move requiring less power from the
weighted levers to lift it.
Datod this 2nd day of November 1887.
CHARLES T. POWELL,
4, Cherry Street, Birmingham,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Extinguishing Apparatus for Lamps.
I FRANCIS ROBERT BAKER, of Snow Hill, Birmingham, in the county of Warwick,
Engineer, 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 the extinguishing of hydro-carbon or other oil or spirit
lamps, automatically or at will, and the object of my improvements is, to provide upon
and in conjunction with the sliding extinguisher, a trip action, so that when the said
extinguisher has reached. a certain point in its travel, a projection from its flap or
cover comes in contact with a fixed body, which causes the said flap to effectually
cover the wick and put out the light.
In carrying out my invention I should proceed somewhat thus:-Upon the wick
tube or tubes I mount an extinguisher, similar to those in ordinary use, that is,
consisting of a sliding box fitted with a hinged flap or cover.
I further provide a trip action in connection with the extinguisher flap or shutter,
after the following manner :-connected to the hinged shutter or flap is a projection or
arm, which stands out a little distance therefrom, and in conjunction with this
projection or arm, I provide a check or catch piece, which is a fixture, and may be
carried up from the cone of the burner pillarwise and bent at right angles at the top,
hook fashion.
Thus when the extinguisher is lifted to the top of the wick tube, just prior to the
termination end of the said lift, the arm upon the shutter is caught by the catch and
the shutter closed over the wick.
This trip motion enables me to dispense with springs &c., upon the shutter for
closing it, and so to leave, the slide more free to move, requiring less power to
lift it.
I will now proceed to more particularly describe this my invention having reference
to the accompanying illustrative sheet of drawings upon which are figures and letters
of reference, like letters referring throughout the several views to the same thing
or part.
Fig. 1 shews the trip action as arranged for a double burner, the parts shewn being
detached from the cone, gallery, and other parts of the burner.
Fig. 2 is a sectional side elevation of Fig. 1 at A-B.
Fig. 3 is a plan of Fig. 1.
Fig. 4 is a detail front and side elevation, and plan of the hinged flap or cover.
Fig. 5 is a detail front, and side elevation, and plan, of the double sliding extinguisher
case.
Fig. 6 is a front and side elevation, and a plan, of the tripper.
Fig. 7 is a view of the tripper in action, when the extinguisher is raised at will.
Fig. 8 shews the extinguishers and the tripper, in their normal position in an oil
lamp burner.

page_text: Fig. 9 is a view of the burner in a tilted or falling position, shewing the automatic
action of the extinguisher and the tripper.
I have illustrated this my trip action for the extinguishers of lamps as applied to
what are known as duplex burners, but it will be apparent that it may be equally
applicable to lamps having one, or, more wicks, where a sliding extinguisher or
extinguishers are used.
a, a, are the wick tubes secured in the body of the burner; b, b, are the sliding
extinguisher cases connected to each other by the vertical piece c, which slides through-
an opening in the plate d. At e, e, is hinged the flap, shutter, or cover f, and upon
this Hap is provided the projecting arm g.
At the one end of the wick tubes, and connected to the plate d, I provide the
upright fixed piece h, having at its upper end the projection ?, bent over as seen in
Figs. 2, 3 & 6.
In the upright fixed pieco c I provide a slot hole, to receive the one end of the lover k,
which is carried upon the joint snugs 1, 1, the outer end m of the lover passing to the
oxterior of the burner, and terminating with a suitable knob or handle, whereby the
extinguishers may be raised at will.
It will now be seen from Figs. 1, 2, 3 & 8, that when the extinguishers are not in use,
that is, in their normal position, the projecting arms 9, 9, are directly underneath the
overhanging fixed projection i; so that upon the sliding of the extinguishers upwards,
when they reach the top of the wick tubes, the said arms g, g, come in contact with
the said stationary projection i, by which they are tripped or tilted over, causing the
flap to close over the mouth of the case as seen in Fig. 7, and thus extinguish the
light.
In Fig. 9 I have shewn the burner as if thrown over or upset, when the
extinguishers would by their own gravity, slide forward until the arius, g, g, strike
the projection i, when again the same result would follow.
By these means I obtain the closing of the flap or shutter of extinguishers over
the wick, without springs, which latter are often troublesome; and further, by reason
of there being no springs, when the lamp is righted, that is, put upright, the
extinguishers readily fall into their normal position, having no pressure from springs
to overcome; this self resetting property being a decided improvement.
Although I have shewn the best method I know of, in carrying out this my
invention, I do not limit myself to their precise details or form, as these may be varied
to suit different burners or wick tubes, and their sliding extinguishers, but :-
--
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what I
claim is :-
The combination of the sliding extinguisher, having upon its flap or shutter a
projecting arm g, or its equivalent, with the fixed tripper piece i, constructed and
operating substantially as hereindescribed and illustrated, or any mere modification of
the same, and for the purposes specified.
Dated this Lith dove of T1000
CHARLES T. POWELL,
12, Cherry Street, Birmingham,
Applicant's Agent.