s in Roller Slides
Year: 1886

page_text: or Films in Roller Slides.
S. D. MCKELLEN 18 Brown St. Manchester Watch and Clock and Camera Manu-
facturer do hereby declare the nature of my invention for IMPROVEMENTS IN
METHODS OF EXPOSING SENSITIVE PAPER, TISSUE, OR FILMS, IN ROLLER SLIDES to
be as follows:-
My invention is intended to enable a much greater length of paper to be used in
the slide so as to avoid the necessity of frequently recharging the slide with paper.
For this purpose I use two rollers instead of only one as has hitherto been used on
which to wind the paper before exposure. These two rollers are placed in the slide,
as distant from each other as the slide will allow and the paper is wound on both
rollers being well stretched from one roller to the other in winding, thus an elliptical
roll of paper will be formed whose diameter measured the short way is the same
length as it would have been had one roller only been used; and taken the long
way the diameter is so much longer that three or four times as much paper may be
stored than if only one roller is employed in the same thickness of case or slide.
COLL 1
1000
S. D. MoKELLEN.
or Films in Roller Slides.
I, SAMUEL DUNSEITH MCKELLEN 18 Brown Street, Manchester in the County
of Lancaster Watch, Clock and Camera manufacturer do hereby declare the nature
of my invention for IMPROVEMENTS IN METHODS OF EXPOSING SENSITIVE PAPER,
TISSUE OR FILMS IN ROLLER SLIDES and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention relates to an improved method of winding photographic paper,
or tissue or films, hereinafter referred to as paper, for use in the slide of a photo-

page_text: graphic camera, to enable an increased length of paper to be stored in the slide,
and thus avoid the necessity of frequently recharging the said slide with paper.
In the specification of my patent No. 8722 A.D. 1885 I described the means
whereby I employ a cylinder termed a discharging roller, on which to wind the
paper required for use: I now in this invention use two rollers in lieu of one :-
These two rollers are placed in the slide as distant from each other as the slide will
allow, the paper is wound over both rollers and kept well stretched, tension being
obtained by means of a jointed frame, or by springs in a rigid frame, or other
Buitable appliance: thus an elliptical roll of paper will be formed, the diameter of
which, measured the short way is the same as it would have been if one roller only
had been used, and the diameter measured the long way is much longer, therefore
three or four times more paper may be stored than if one roller only is employed,
without increasing the thickness or size of case or slide.
In the accompanying sheet of drawings illustrating my invention, I have shown
only one method of obtaining tension on the two rollers but other means such as
herein before mentioned may be used when preferred.
In the several views I now describe similar letters refer to similar parts: Fig. 1
is front view, and Fig. 2 transverse section of slide a with rollers 6 and 6¹ in posi-
tion Fig. 3 is side view and Fig. 4 sectional end view of a set of rollers 6 and 61
in a jointed frame c: d the paper is wound over the rollers b and b¹ while they are
in the position represented in Fig. 5. the two ends c¹ and c³ are then pressed into
a straight line as represented in Fig. 4 and the frame c is attached to each end of
inside of alide a.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
In the slide of a photographic camera, the use of two rollers, on which to wind
the sensitive or other paper, so as to form an elliptical roll of paper, thereby enabling
an increased amount of paper to be stored, without increasing the size or thickness
of case or slide substantially as bereinbefore described..