Improvements in Sliding Carriers for Magic Lanterns or the like.
Year: 1892

page_text: Date of Application, 24th Nov., 1892
Complete Specification Left, .24th Aug., 1893-Accepted, 28th Oct.; 1893
. PROVISIONAL SPECIFICATION.
Improvements in Sliding Carriers for Magic Lanterns or the like.
We, FREDERIC LOUIS PERKEN, EDGAR THEODORE PERKEN and ARTHUR
RAYMENT, trading as Perken Son & Rayment of 99 Hatton Garden in the City of
London, Manufacturers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in sliding carriers for carrying the slides
pictures or views for magic lanterns or the like.
Heretofore the sliding parts of such sliding carriers have usually been made with
a double frame to receive therein the slide view or picture to be exhibited which
latter has been placed into this carrier usually through a slot either in the top of
the frame or in the side of the frame and in order to remove such picture or slide
from the said carrier various means have been devised to raise said pictures through
said slot or otherwise facilitate the removal of said slide.
Now our present invention is designed to obviate all such more or less complicated
constructions of sliding carriers and in place thereof to provide a very simply
constructed and simply operating sliding carrier which moreover will be very easily
worked and offer many advantages in practice.
For this purpose we proceed as follows:-
The sliding carrier is held and slides in any suitable ways or guides as is well
known and understood and has frames or openings wherein to carry one two or
more pictures but for the sake of example we will describe a sliding carrier to carry
2 pictures to be exhibited in a magic lantern.
Each such picture holding frame or opening consists simply of a bottom support
and two side supports the latter advantageously parallel to one another while the
top is perfectly open and free.
The picture to be exhibited is dropped into suitable guides or grooves formed
down each side of said frame or opening and rests on the bottom bar thereof and is
thus securely held in position ready for display.
When it is desired to remove this picture from our improved sliding carrier the
said picture is free and ready to be grasped at once by the operator (without any
mechanical means being required to raise same) and removed from the sliding
carrier in a ready and expeditious manner and without injury to the slide or
picture.
The other frame or opening on the same sliding carrier is constructed in
identically the same manner with no top thereto and operates in the same way as
just previously described.
Dated this 24th day of November 1892.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Sliding Carriers for Magic Lanterns or the like.
We, FREDERIC LOUIS PERKEN, EDGAR THEODORE PERKEN and ARTHUR
RAYMENT, trading as Perken Son & Rayment of, 99 Hatton Garden in the City of
London, Manufacturers, 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 improvements in sliding carriers for carrying the slides
pictures or views for magic lanterns or the like.
Heretofore the sliding parts of such sliding carriers have usually been made with
a double frame to receive therein the slide view or picture to be exhibited which
latter has been placed into this carrier usually through a slot either in the top of
the frame or in the side of the frame and in order to remove such picture or slide
from the said carrier various means have been devised to raise said pictures through
said slot or otherwise facilitate the removal of said slide.
Now our present invention is designed to obviate all such more or less complicated
constructions of sliding carriers and in place thereof to provide a very simply
constructed and simply operating sliding carrier which moreover will be very easily
worked and offer many advantages in practice.
For this purpose we proceed as follows:-
f
The sliding carrier is held and slides in any suitable ways or guides as is well
known and understood and has frames or openings wherein to carry one two or
more pictures but for the sake of example we will describe a sliding carrier to
carry two pictures to be exhibited in a magic lantern.
:
Each such picture holding frame or opening consists simply of a bottom support
and two side supports the latter advantageously parallel to one another while the
top is perfectly open and free or instead of having no top bar at all-a part top bar
may be used and such part slotted to pass the picture.
The picture to be exhibited is dropped into suitable guides or grooves formed
down each side of said frame or opening and rests on the bottom bar thereof and is
thus securely held in position ready for display.
When it is desired to remove this picture from our improved sliding carrier the
said picture is free and ready to be grasped at once by the operator (without any
mechanical means being required to raise same) and removed from the sliding
carrier in a ready and expeditious manner and without injury to the slide or
picture.
The other frame or opening on the same sliding carrier is constructed in
identically the same manner with no top thereto and operates in the same way as
just previously described.
Or these three-sided frames may be similarly formed with an open side instead of
the open top as above described.
In the accompanying drawings we have illustrated one form of carrying out our
said present invention.
Fig. 1 shows in side elevation-our improved sliding carrier moved to extreme
position to the left.
Fig. 2 is similar view showing same carrier moved to extreme right.
Fig. 3 is a plan or top edge view with the horizontal top bar a' of frame a
removed to more clearly show the slide carrier b.
a is slotted guide frame (i.e. carrier frame) through which the carrier 6 slides
laterally in the channel groove or guideway for same in the extending arms ce
mounted or fixed to a as shown.
dd are grooves in or on the vertical edges of e and f forming one slide holder
and d' d' are corresponding grooves formed in or on the edges of fg forming a
second slide holder or carrier.

page_text: hh are grooves (which may or may not be used as desired) in the bottom runner
or bottom edge of the slide carrier.
ii are stop pieces or blocks on the sliding carrier which limit the travel of the
latter by contact with the uprights a.
It will thus readily be seen that the slide etc. to be exhibited can be dropped into
the grooves d'or d¹ and when it is desired to remove such slide from the carrier
said slide can be readily grasped and easily withdrawn thus dispensing with the
necessity of any device to first raise same as heretofore.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
A sliding carrier or sliding carrier block for magic lantern slides or the like
consisting of a slotted guide frame in combination and acting in conjunction with a
grooved sliding carrier having three sides only to the picture holding frame the
whole or part of the horizontal top bar or top part-or one side-of each such
picture or view holding frame in said sliding carrier being removed or dispensed
with substantially in the manner and for the purposes herein before set forth.
Dated this 24th day of August 1893
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.