Improvements in or relating to the Backs of Opaline Photographs and Photograph Frames.
Year: 1893

page_text: Date of Application, 26th Oct., 1893
Complete Specification Left, 26th July, 1894-Accepted. 15th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Backs of Opaline Photographs
and Photograph Frames.
I, PAUL CAMPBELL, of 63, 65 and 67 Waterloo Street, Glasgow, Photo
Frame Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements connected with the backs for opaline
photographs or for backs of photo frames of plush or like material.
The said opaline photographs usually have a cardboard back glued to the back
of the opaline or glass. In order to support the photograph on a table for example
In accordance with
the said cardboard back is provided with a cardboard strut.
my invention I dispense with the usual tape for limiting the extent of the opening
out of the strut and in lieu thereof I form the attaching hinge of the strut as
follows:-
The upper portion of the cardboard back to the extent of say one third is
divided from the lower portion of the cardboard back. The lower edge of the
upper cardboard piece is formed with a bead or flanged portion, by pressure
rollers or by other means. Then the two portions are attached by a strip of cloth
at the back in such a manner that the lower portion is capable of hinging, or
moving outwards or inwards. To check or regulate the extent of opening of the
lower strut, its upper edge is fixed underneath the said bead of the upper fixed
portion; the said bead acting as a flexible stop.
The formation of the beading of the copper portion may be effected by pressure
rollers in the following manner. I employ two rollers the one above the other.
The one or under roller is formed with a raised or beaded portion which fits
into a correspondingly recessed portion on the other or upper roller. The said
upper roller has the centre of its recessed portion provided with a knife edge
or divider so as to produce the proper beading for two upper cardboard portions at
the same time.
Gauges may be provided to regulate the width of the upper back portion.
The upper portion of the back is provided with a ring for suspending the photo
or frame. The said ring is formed as follows:-
I stamp out a small piece of thin brass, preferably to a shape somewhat like that
of a shamrock; and projecting from each shamrock or leaf is a prong. The said
prongs are bent down and are then put through pierced holes made through the
cardboard. The prongs are then bent inwards and punched flush with the
cardboard. The centre which joins the four leaf portions is so stamped that it
forms a raised or bridge portion sufficient to take in the ring from which the frame
may be supported.
021
L1002
JOHNSONS,
115, St. Vincent Street Glasgow, Applicant's Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to the Backs of Opaline Photographs
and Photograph Frames.
I, PAUL CAMPBELL, of 63, 65 and 67 Waterloo Street, Glasgow, Photo Frame
Manufacturer, 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 or relating to the backs of opaline
photographs or to the backs of photo frames of plush or like material.
Hitherto the said opaline photos have usually had their backs glued on; said
backs being provided with a back strut and tape for limiting the extent of the
opening of the strut.
In accordance with my present invention I dispense with said tape and in
lieu thereof form or provide the strut with an improved hinge constructed as
hereinafter described and illustrated in the accompanying drawings.
Figure 1 is a back elevation of a photo frame having my improvements
attached.
Figure 2 is a side elevation of the same, with strut standing out.
Figure 3 is an elevation of the rolls employed in making my improved back. And
Figure 4 shows a detail.
Referring to the said drawings, I form the upper portion A of the cardboard
back, to the extent of about one third, as a separate piece from the lower portion B
which forms the strut. The lower edge of the upper portion A is formed with a
bead or flange C by means of pressure rollers or otherwise, in such a manner, as to
permit of the upper edge b of the lower portion B being placed behind the said
bead C and connected to the upper portion B by means of a strip of cloth D, and
so form a hinge to permit of the lower portion B or strut moving outwards or
inwards. The extent of the said opening out of the lower portion B being regulated
by the bead C of the upper portion A which acts as a flexible stop.
In forming the bead C on the upper portion A, I employ a pair of pressure
rollers, as shown in Figure 3, the one E being mounted above the other F. The
under roller F is formed with a raised or beaded portion or ring f, which fits into a
correspondingly recessed portion or ring e on the upper roller E; said rollers being
driven at any desired speed and pressure in the ordinary way.
In some cases, if desired, I may form the recess e of the upper roller E double
the size than is shown, and provide it with a knife edge or divider so as to
form two beads at the one operation. Also if desired I may provide suitable
gauges so as to regulate the width of the upper portions and beads.
My invention also provides means whereby the photo or frame may be suspended;
that is to say, I stamp out a small piece of thin sheet brass G, preferably to a shape
somewhat like that of a shamrock, as shown in detail Figure 4, there being a
prong 9 projecting from each leaf in a downward direction as shown. The said
prongs g after being passed through holes in the cardboard are punched flush with
the back of the cardboard so as to retain the metal piece G thereon. The centre
portion of the said piece G which joins the leaf portions is so stamped as to form a
raised or bridge portion of a sufficient size as to take in the suspending ring H of
the photo or frame.
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 :-
1st. The general arrangement, construction and combination of the various parts,
constituting the improvements in or relating to the backs of opaline photographs

page_text: and photograph frames, substantially as hereinbefore described and shown in the
accompanying drawings.
2nd. In backs for photographs and photograph frames, forming the said backs.
in two portions A, B, the upper portion being formed with a bead C and connected
to the lower portion by a strip of cloth D, so as to form a hinge and stop for the
lower portion or strut, substantially as herein before described and shown in the
accompanying drawings.
3rd. In backs for photographs and photograph frames, forming the upper-
portion A with a bead C by means of a pair of pressure rollers E, F, as
herein before described and shown in Figure 3 of the accompanying drawings.
4th. In backs for photographs and photograph frames, the shamrock shaped metal
piece G in combination with the ring H, substantially as hereinbefore described
and shown more particularly in Figure 4 of the accompanying drawings.
Dated this 25th day of July 1894.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.