IMPROVEMENTS CONNECTED WITH APPARATUS FOR EXHIBITING AND COPYING PICTURES BY THE OXY-HYDROGEN OR OTHER SUCH LIGHT, PARTS OF WHICH ARE ALSO APPLICABLE TO MAKING OXYGEN GAS FOR OTHER PURPOSES
Year: 1876

page_text: LETTERS PATENT to David Young, of Swinton, in the County of Lancaster,
Gentleman, for the Invention of "IMPROVEMENTS CONNECTED WITH APPARATUS
FOR EXHIBITING AND COPYING PICTURES BY THE OXY-HYDROGEN OR OTHER
SUCH LIGHT, PARTS OF WHICH ARE ALSO APPLICABLE TO MAKING OXYGEN GAS
FOR OTHER PURPOSES."
led the 1st August 1876, and dated the 4th February 1876.
PROVISIONAL SPECIFICATION left by the said David Young at the Office of
the Commissioners of Patents on the 4th February 1876.
DAVID YOUNG, of Swinton, in the County of Lancaster, Gentleman. "IMPROVE-
MENTS CONNECTED WITH APPARATUS FOR EXHIBITING AND COPYING PICTURES BY
TUE OXY HYDROGEN OR OTHER SUCH LIGHT, PARTS OF WHICH ARE ALSO APPLICABLE
FOR MAKING OXYGEN GAS FOR OTHER PURPOSES."
My Invention relates to that well-known apparatus in which oxygen gas is
generated as required during the exhibition or copying of pictures through the
medium of small retorts charged with material in the form of compressed plugs
and heated by ordinary house gas.
:-
According to the usual construction and arrangement of apparatus a gas holder
is employed which is used for that purpose only, and the whole therefore becomes
very cumbrous and difficult to convey for use from one place to another. To
obviate this I construct the gas holder so that it may be arranged to contain every-
thing that will be required for exhibiting or copying pictures and in the following
manner I construct the outer part of the gas holder in two portions, one of which
may be placed within the other, in order to provide for which I make the central
tube in two parts which may be separated by unscrewing. When in this form a
casing is provided within which the lantern, retorts, and all other necessary
articles may be packed. When required for use the aforesaid two parts
of the gas holder are separated, and one of them having been turned end
for end is capable of resting upon the other. To this part a frame is
adapted having flanges so that it may be turned as on a centre, and upon it the
retort or retorts are mounted capable of turning upon an independent centre.
said frame has uprights which carry a second frame situate above the retorts and
which constitutes a stand for the lantern and which is secured thereto by V edges.
In constructing the retorts I provide them with lids at their outward ends which
are capable of being closed by screw clamps and they may therefore be charged
Puiss G71
The

page_text: while they are in working position. In making the plugs of compressed material
I press the said material into thin metal tubes open at one end and provided with
perforations, the whole being placed in the retorts. To the closed ends of the said
tubes I adapt hooks, by means of which they may be withdrawn when the material
is spent.
Above the retorts I place shields to deflect the heat downwards, such shields
being caused to turn upward when rotatory action is imparted to the retorts.
That part of my Invention relating to the retorts is applicable to making oxygen
gas for general purposes.
SPECIFICATION in. pursuance of the conditions of the Letters Patent filed by the
said David Young in the Great Seal Patent Office on the 4th August 1876.
DAVID YOUNG, of Swinton, in the County of Lancaster, Gentleman. " IMPROVE-
MENTS CONNECTED WITH APPARATUS FOR EXHIBITING AND COPYING PICTURES BY
THE OXY-HYDROGEN OR OTHER SUCH LIGHT, PARTS OF WHICH ARE ALSO APPLICABLE
TO MAKING OXYGEN GAS FOR OTHER PURPOSES."
My Invention relates to that well known apparatus in which oxygen gas is
generated as required during the exhibition or copying of pictures through the
medium of small retorts charged with material in the form of compressed plugs.
To
According to the usual arrangement and construction of apparatus a gas holder
is employed which is used for that purpose only, and the whole therefore becomes
very cumbrous and difficult to convey from one place to another for use.
obviate this I construct the gas holding apparatus so that it may be arranged to
contain everything that is required for exhibiting or coyping pictures and for form-
ing a suitable stand for the lantern.
Another part of my Invention consists in a method of constructing the retorts and
also in a method of charging them with material from which the gas is to be made.
In the accompanying Drawing Fig. 1 represents the whole apparatus set up
for use, and Fig. 2 a plan view, the lantern being removed. I will describe these
in the first place and then show how the several parts may be separated for
packing. At 1 is a circular metal casing within which is the gas holder 2 pro-
vided with the tube 3 surrounding the pipe 4 which leads from the retort in use,
this arrangement so far being that in ordinary use as is also the pipe 5 for con-
veying the gas to the lantern 6. Upon the top of the casing 1 is another casing 7,
formed however with openings as at 8 and upon this is placed a fraine 9 the form
of which is shewn in the plan view, Fig. 2, but the said Fig. 2 represents
another frame above that now referred to. This frame is provided with parts as
at 10 extending downward and abutting against the casing 7 and the said frame
may therefore turn as upon a centre. Within the parts 10 are the heads of bolts
surrounded by thimbles 11 which carry another frame 12, 12*, shewn in Fig. 2,
and this second frame is tied to the other by nuts 13. The bottom of the lantern
6 is provided with a board 14 one side of which has a square ledge 15 extending
over one part 12* of the frame, and the other side a V ledge 16 fitting on to the
other part 12 of the frame, by which arrangement the lantern is prevented from
tilting over and it may be turned bodily upon the casing 7. At 17 are the retorts
capable of being turned upon the upper end of tube 4 and heated by the gas pipe 18.
When the apparatus is in use the gas holder 2. rises within the top casing 7 and it
is formed with a projecting part 20 above its top for the purpose of facilitating the
application of weights, the oxygen gas passing from the retorts and supplying
the lantern in the ordinary manner. The pipe 4 according to my Invention is formed
in two parts united together by screwing at 21 and is provided with the usual
directing bottom flange 22.
When it is desired to pack up the apparatus the lantern may be lifted from its
supporting frame 12* and this together with the other frame 9 may be removed

page_text: and separated by unscrewing the nuts 13. The retorts 17 and gas pipe 18 being
then taken away the pipe 4 is unscrewed at 21, and the top casing 7 lifted off, and
then by unscrewing the nut 22 and turning the gas holder 2 upside down the tube
3 will slip off, and the whole of the parts will become substantially separated, but the
order of their removal may of course be varied. The top casing 7 being now
turned end for end is placed in the other casing 1, and within this is placed the
gas holder 2, the several parts in these positions being shewn at Fig. 3, and they
constitute a receptacle within which the whole of the apparatus may be packed and
any suitable cover may be adapted. I have found that if the casing I be about
fifteen-and-a-half inches in diameter and twenty-two high ample room will be
afforded to contain everything required.
Figs. 4 and 5 shew a modification in which the casings 1, 7, are made square, and
one retort 17 is used, which retort is fixed, or there may be more than one made to
slide horizontally, or the gas pipe 18 might be moved.
The next part of my Invention is shown at Figs. 6, 7. At 17 is the retort,
and at 18 the heating gas pipe, the said retort being provided with a flange 25 for
carrying a clip 20 which by means of a screw 31 tightens a cover 27 upon the end
of the retort. According to the usual method of using these small retorts they are
themselves made to contain the material for the generation of the oxygen. Accord-
ing to my Invention I use a thin inetal tube 28 in which the material is placed and
this tube is placed in the retort. At one end it is provided with a perforated cap
29 for the passage of the oxygen gas and for the purpose when removed of adding
fresh charges, and at the other end (which is closed) with a ring 30. When the
material has to be removed the cap 27 is taken away by looseing the screw 31, and
the tube 28 may then be drawn out by applying a hook to the ring 30 and another
tube may then be adapted; if required the removal of the retort or the handling of
heated parts not being necessary, instead of complete tubes simicircular or other
shaped half tubes or dishes may be used, the object being to carry the charge by
apparatus distinct from the retort. This part of my Invention is applicable to
making oxygen gas for general purposes.
In order to deflect the heat downwards there is a shield 32 over the top of the
retort. In Fig. 1 this shield is also shewn, and there it turns upon a hinge 33
so that when the retorts are turned it is lifted.
Having thus described and ascertained the nature of my said Invention and the
manner in which the same is to be performed, I desire it to be understood that I
claim as secured to me under the above in part recited Letters Patent and for the
purposes above set forth,-
Firstly. The method of constructing the casings 1, 7, and parts connected there-
with so that the whole apparatus may be contained therein as one package, and
also that the said casings may constitute a stand for a lantern.
Secondly. Constructing the retorts with a removable front as at Fig. G.
Thirdly. Placing the material for making the oxygen gas within tubes or other
receptacles, placed within the retorts.
In witness whereof, I, the said David Young, have hereunto set my hand
and seal, this Third day of August, in the year of our Lord One thou-
DAVID YOUNG. (L.S.)