Year: 1887

page_text: Date of Application, 4th Aug., 1887
Specification Accepted, 14th Oct., 1887
I WILLIAM PHILLIPS THOMPSON F.C.S. M.L.M.E. of the Agency for Foreign
Patent Solicitors G, Lord Street Liverpool and 6, Bank Street, Manchester, both in the
County of Lancaster and 323 High Holborn, in the County of Middlesex, Civil
Engineer, 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 :-
The present improvements relate to a particular mode of forming the corners of
paste-board boxes, in such manner that a weakening of the sides is entirely avoided by
the application thereto of cramps made of metal strips provided with indentations
penetrating in the sides. Furthermore this new mode of forming the corners protects
equally well their inner and outer sides.
On the annexed drawing, Figures 1 to 11 represent two modes of forming this
sort of corner, while Figures 12 and 13 represent a box provided with such
corners.
The construction of a box is accomplished in a very simple manner: after having
cut out a suitable piece of paste-board and folded the same to form the box, the
corners are joined and formed by slipping the new device over the edges, whose
contact at right angles forms the open corners f, g, h, i.
This device consists as shown on Figure 1-7 of a strip of metal. bent at right
angles and in the shape of a U, see Figures 5 and 7. The space left between the
two limbs of the U corresponds exactly to the thickness of the paste-board of which
the box is made. The faces of the metal angle are besides provided with small
depressions or marks C made in the metal, for the purpose of preventing the sides
from coming out of the angle.
A second mode of forming corners is shown on Figures 8-11. In this method
any slight shifting of the box sides is prevented by making on the upper edges of the
box, projections d (Figure 9) which correspond with notches e on the metal
angle-niece.

page_text: The projections C can also be used here to give increased solidity.
It will be seen that in both examples the simple slipping of the connecting device
over the edges forming the corners, not only joins the sides, but also secures, at the
same time, their outside and inside faces, without the box being weakened by being
cut. None of the modes of forming the corners of pasteboard boxes, known up to the
present time, attain this result.
Hitherto the edges forming by their contact the corners of the box have been
connected by means of metal angles which were fixed either on the inside, or on the
outside of the box, or even separately on both sides. By the present invention, the
connection of the sides of the box is attained by simply slipping a metal angle piece
over the edges forming the corners, without any further manipulation. In other
words the object to be kept together is surrounded by, or enclosed completely, by the
corner forming device which joins at right angles the adjacent sides. It must also
be pointed out that Figure 6 represents a cross section through A-B in Figure 2
and Figure 7, a vertical cross-section of the same through C, D, whilst Figure 9
shows an elevation and a plan of the indentations made on the upper edges of
the side.
A box made in the manner described in the foregoing is very durable.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :-
1. A pasteboard box corner connection, distinguished by slipping over the adjacent
edges forming the corners U-shaped corner piece having sides at right angles to
each other, which connecting piece protects the inner sides of the box as well as the
outside ones, the sides of the box being prevented from slipping out of the metal angle
by depressions made in the metal, substantially as described.
2. The application of notches e, e on the upper edge of the metal angle in the
device set forth in claim 1 for forming the corners, which notches correspond to
indentations d, d, in the pasteboard for the purpose of completely preventing the sides
from slipping out of the metal angle, said notches and indentations being used with
or without the depressions c, c.
Dated this 3rd day of August 1887.
WM. P. THOMPSON & Co.,
Agents for the Applicant.