Improvements in Dissolving Apparatus for Optical Lanterns.
Year: 1886

page_text: Date of Application, 14th Aug., 1886.
Complete Left, 12th May, 1887.
Complete Accepted, 14th June, 1887.
[Communicated from abroad by GEO. R. PROWSE, Great St. James Street, Montreal,
in the Province of Quebec, Dominion of Canada.]
[Communicated from abroad by GEO. R. PROWSE, Great St. James Street, Montreal,
in the Province of Quebec, Dominion of Canada.]
Improvements in Dissolving Apparatus for Optical Lanterns.
I FRED. BARBER, of 23 Upper Chipping House Road, Sheffield, in the County of
York, Cutlery manufacturer do hereby declare the nature of my invention for
IMPROVEMENTS IN DISSOLVING APPARATUS FOR OPTICAL LANTERNS to be as follows:-
:-
The addition to a Dissolver for Optical Lanterns, of an auxiliary piece in which the
passages, leading to the dissolving cock, are so arranged in position, and their
apertures so controlled by means of conical plugs, as to enable it to be used with Gases
under high pressure, with absolute safety to the Apparatus and the user thereof.
The combination with a Dissolver, of means for regulating the flow of the Gases to
the burners, of all the Lanterns in use, thereby obviating the necessity of regulating
such flow at each of the burners separately.
In the ordinary Dissolver used with Optical Lanterns, all the openings for the flow
of the Gases, pass directly through the Casing & as there are no regulating taps to
these openings, the Gases come against and pass away from the dissolving Cock at
full pressure, thus necessitating the use of Cocks for regulating pressure & quantity
of Gas, on the Jets of the Lanterns themselves.
In my improved Dissolver, I arrange the passages leading to the Cock in such a
way that, by means of Conical pointed Screws having milled heads, I can close these
openings either wholly or in part. Thus the pressure can be reduced at will without
interfering with the Jets.
This obviates the danger of bursting the tubes leading from the Dissolver to the
Lanterns & at the same time, the liability of altering the adjustment of the light as
to position.
By these means, which I believe are novel the use of Dissolving Optical Lanterns
is much simplified.

page_text: COMPLETE SPECIFICATION.
Improvements in Dissolving Apparatus for Optical Lanterns.
I, FRED BARBER Cutlery manufacturer, 23 Upper Chipping House Road, Sheffield
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:
Fig. 1 is a side elevation, Fig. 2 is a plan, Fig. 3 vertical section across line A B
in Fig. 2, Fig. 4 vertical section across line A C in Fig. 2 and Fig. 5 vertical section
across line A D in Fig. 2.
The same letters refer to similar parts in all the different views.
In figures 1 and 2, A' is a taper plug cock, through the plug of which two pairs of
boles are bored in a line with the two pairs of passages and tubes H. Or and Hr Or.
One pair of these holes is bored at right angles to the other pair and are so arranged
for the purpose of closing the passages leading to one pair of tubes Ha Or whilst
the passages leading to the other pair of tubes Hv Ov are opening, as in an ordinary
dissolver.
The particular position and direction of the passages is shown in the various sectional
views Figs. 3 and 4 and by the dotted lines in Fig. 2.
On the receiving side of cock A¹ or that from which the Gases approach it, I
provide a suitably shaped piece of metal forming part of its casing, in which I form
passages H. O and He H Ox Oc, the four latter being continued through the casing
on the other side of cock A to the four delivery tubes shewn in the drawings Figs. 1
and 2.
Passages H. O are formed transversely to and underneath Ha Hv Or Ov and are
feeders to the latter, H being feeder to Hr Hr and O feeding Or Oc. I make com-
munication between H. O and H. He Or Ov by means of vertical holes at the points
where shewn. Directly over these holes I provide fine threaded screws H¹ H" σ¹ 0",
with convenient heads and conical points, in such a position that when screwed
down, they securely close the holes communicating between H and Ha Ho and between
O and Ox Ov.
On the other side of cock A¹ from which the Gases pass away for use, I form
passages as shewn in Fig. 5, which make a communication between He and He. This
. communication is closed or opened by means of screw P, which thus enables the
operator of the apparatus to allow sufficient Gas only to pass from passage Hæ into
passage Hr or vice versa, as will keep a small light burning in the Lantern whose
passages are closed by cock A whilst the passages of the other Lantern are open.
By means of the screws HH" 0¹ 0" I am enabled to control the pressure and
regulate the quantity of Gas passing cock A and thereby obviate the danger of
bursting or blowing off the tubes between the dissolver and the Lanterns.

page_text: At the same time these regulating screws being part of the dissolver itself, the
character of the flames can be regulated without interfering with the Jets of the
Lanterns themselves.
Although I have described one form of the apparatus, I wish it to be clearly under-
stood that I do not confine myself to this particular shape.
Having now particularly described and ascertained the nature of my said invention
and how the same is to be performed, I declare that what I claim is
The addition to a dissolver for optical Lanterns of an auxiliary piece, in which the
passages are so formed and their apertures so controlled, by means of Screws or
Plugs, that it may be used with absolute safety with Gases under high pressure and;
The combination with a dissolver of means for regulating the flow of the Gases to all
the Lanterns in use at one point, and thus obviate the necessity of regulating such
flow at each of the burners or jets separately, substantially as herein described.
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