A Dissolving and Effect Slide-carrier for Use with a Single Magic-lantern.
Year: 1894

page_text: Date of Application, 2nd Apr., 1894
Complete Specification Left, 7th July, 1894-Accepted, 18th Aug.,
1894
PROVISIONAL SPECIFICATION.
A Dissolving and Effect Slide-carrier for Use with a Single
Magic-lantern.
The Rev. ASHELEIGH THORP, M.A., 42 Great Percy Street, London, W.C.,
Clerk in Holy Orders, do hereby declare the nature of this invention to be as
follows:-
A "carrier "enabling the operator with a single magic-lantern to superimpose
a second picture on the screen before withdrawing the first-capable of being
used with unframed or framed slides-thus producing "dissolving" and other
" effects."
The contrivance consists of a frame fitted with spring or springs, and two
movable slide-holders. The first inserted is pressed into focus by the spring or
springs; the second is introduced behind or before the first; and on the first being
withdrawn, the second is pressed into focus by the spring or springs. The end of
the frame withdraws, so as to admit of the frame being used for similar action in
the case of framed slides, whether "slipping or ordinary.
"
Dated this Thirty-first day of March 1894.
ASHELEIGH THORP.
COMPLETE SPECIFICATION.
A Dissolving and Effect Slide-carrier for Use with a Single
Magic-lantern.
ASHELEIGH THORP, M.A., 42 Great Percy Street, London, W.C. Clerk in
Holy Orders, 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 :-
I describe my invention by reference to the accompanying drawing.
Fig. 1 is a front elevation, and Fig. 2 a back elevation of the carrier-frame, to
be made of wood, or other material or materials, as considered advisable.
Both ends of the carrier-frame are open.
In Fig. 2, a A a¹ is of flexible brass, or other suitable material. a and a¹ are
springs, which, when the carrier-frame is empty, press down upon the insides of the
horizontal parts of Fig. 1.
A can be made of wood or other material, with a and a' attached to it, if thought
desirable.
Figs. 3 and 4 are holders for unframed slides; openings at c and c¹ admit the
slides.
Slide-holders may be made with orifice for slides of gauge other than English
standard.
The method of working is as follows:
The carrier-frame (Figs. 1 and 2) is inserted in the stage of the lantern,
horizontally. A slide having been placed in one holder (say Fig. 3) the holder is
pushed into the carrier-frame at the end left-hand in the drawing, coming under
pressure of a and a', which hold it steadily in focus. The projecting shoulder d
prevents the holder from going too far.
The second holder (say Fig. 4), having been loaded with a slide which it is
desired to exhibit next, is pushed in at the same end of the carrier-frame-left-hand
Price 8d.1

page_text: in the drawing-between the first holder and a, a'. Two slides are now in the rays
from the lantern. The first holder is withdrawn. The spring (Fig. 2) catching
the notch e (Fig. 4) prevents the second holder from coming out with the first.
a and a' then press the second holder into focus-and so on.
The spring b being V-shaped admits of the withdrawal of the second holder
while both holders are in the carrier-frame, if necessary-for instance, if the slide
in it be upside-down or backwards.
Framed slides can be worked in the same manner, instead of holders containing
unframed slides; or can be used alternately or occasionally with the holders, as
required.
In lanterns with open stages, or with stages open at the top, the carrier-frame
can be inserted in a vertical position, and the working done from above, for use
with unframed slides of English gauge; or the carrier-frame and holders can be
made sufficiently wide to take any unframed slide in that position, if thought
desirable.
I make no claim to the broad principle of slides being held in position by
springs; nor to that of one unframed slide being slipped in side by side with
another in a carrier-frame, but
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. The construction and arrangement of a carrier for use with a magic-lantern
substantially described as a dissolving and effect slide-carrier, consisting of a frame
and two detached slide-holders.
2. The frame capable of containing at the same time side by side, with the slide-
openings in the rays of the lantern, the two holders, or one of the holders and a
framed slide, or two framed slides.
3. The carrier-frame fitted with a spring or springs which press upon the holders
or framed slides while in the frame, and which on the withdrawal of one holder or
one framed slide, press the other into focus.
Dated this Fifth day of July 1894.
MALADA
ASHELEIGH THOR