IMPROVEMENTS IN THE MANUFACTURE OF BOXES MADE MAINLY OF PAPER
Year: 1883

page_text: LETTERS PATENT to Thomas Bishop of Birmingham in the County of
Warwick Paper Box Manufacturer for an Invention of "IMPROVEMENTS IN
PROVISIONAL SPECIFICATION left by the said Thomas Bishop at the
Office of the Commissioners of Patents on the 22nd August 1883.
THOMAS BISHOP of Birminghamn in the County of Warwick Paper Box
Manufacturer "IMPROVEMENTS IN THE MANUFACTURE OF BOXES MADE MAINLY
OF PAPER
"
"My invention relates to boxes of the kind commonly called paper boxes that is
boxes made of card or millboard or paper or vegetable pulp and consists of the
improvements hereinafter described in their manufacture whereby their strength is
much increased.
In making a box according to my invention I cut out a blank of the ordinary
kind but instead of connecting the edges of the folded blank in the ordinary way.
I connect the said edges as follows:-I take a strip of thin sheet brass or other
hard and ductile metal or alloy of a length somewhat greater than the three sides
of the end of the box that is the bottom and two vertical edges of the said end.
I form short notches at the middle of each end of the strip and on one edge of
the strip I cut away two triangular pieces the base of each triangle being the
edge of the strip and its apex terminating at the middle of the strip. These cut-
away parts are at a distance from one another equal to the length of the bottom
of the end of the box
The metallic strip is bent along its whole length so that one half of it is in a
plane at right to the other half the said strip having somewhat the appearance of
angle iron. The inner faces of the strip are covered with a coating of glue and the
edges of the blank to be joined and strengthened are applied to the glued strip.
The bottom edge of the end of the box is applied to the middle part of the glued
strip and the end parts are raised at right angles so as to bring them into contact
with the vertical edges of the end and side of the box. The extreme ends of the
[Prine B

page_text: strip are bent or folded over the tops of the said vertical edges. By pressure the
parts to which the folded and bent strip has been applied are brought into intimate
contact therewith and on the solidifying of the glue the parts are firmly held
together. The edges of the box treated in the manner described are thus covered
with a metallic covering and the strength of the box greatly increased. The
treatment which I have described as applied to one end of the box is applied to both
ends and may be applied to the longer sides of the box..
Where the strengthening only of the tops of the angles of the box is required I
effect this by folding short strips of metal into a deep and narrow trough form and
bending these trough shaped strips at right angles at or near their middle fix them
by glue or otherwise on the top angles of the box.
The methods of strengthening described may be applied to the lids as well as the
bodies of boxes.
Instead of glue other adhesive matter may be employed.
After the application of the metallic strengthening pieces the ends and side of
the box may be covered with plain or ornamental paper

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Bishop in the Patent Office on the 22nd February
1884.
.
THOMAS BISHOP, of Birmingham, in the county of Warwick, Paper Box
Manufacturer IMPROVEMENTS IN THE MANUFACTURE OF BOXES MADE MAINLY
OF PAPER
"
$8
My invention relates to boxes of the kind commonly called paper boxes, that is
boxes made of card or millboard or paper or vegetable pulp and consists of the
improvements hereinafter described in their manufacture whereby their strength
is much increased.
In order to enable my invention to be fully understood. I will describe the same
by reference to the accompanying drawing in the several figures of which similar.
letters represent similar or corresponding parts
In making a box according to my invention I cut out a blank of the ordinary
kind but instead of connecting the edges of the folded blank in the ordinary way
I connect the said edges as follows: I take a strip of thin sheet brass or other hard
and ductile metal or alloy of a length somewhat greater than the three sides
of one of the ends of the box that is the bottom and two vertical edges of the
said end.
-
Figure 1, represents a plan of one of these blanks or strips and figure 2, is an.
edge view of the same; I form short notches at the middle of each end of the
strip as shewn at a, in figure 3, which is a plan of one of the strips when so formed
figure 4, being an edge view; on one edge of the strip I cut away two triangular
pieces at b, figure 5, which is a plan of the strip when so cut the base of each
triangle being the edge of the strip and its apex terminating as shewn at the
middle of, the width of the strip. The cut away parts b, are at a distance from
one another equal to the length of the bottom of the end of the box.
The strip is then bent along its whole length as shewn in the elevation and end
view figures 6 and 7, so that one half of it is in a plane at right angles to the
other half the strip having somewhat the appearance of angle iron. The inner
faces of the strip are now covered with a coating of glue and the bottom edge of
the end of the box to be joined and strengthened is applied to the middle part c,
of the glued strip; the end parts d, of the strip are then raised at right angles into
the position shewn in elevation and edge view at figures 8, and 9, so as to bring
them into contact with the vertical edges of the end e, and sides f, of the box as
shewn in figures 10, and 11, which represent a longitudinal and transverse section
respectively of a complete box, and its lid joined or strengthened according to my
improvements; figures 12, and 13, are a longitudinal elevation and an end view
respectively of the same; the extreme ends g, of the strip are then bent or folded
over the tops of the said vertical edges as shewn. Pressure is then applied to the
parts to which the folded and bent strip has been applied and the parts will be
thereby brought into intimate contact with the said strip and on the glue solidifying
they will be held firmly together.
A similar strip to that herein before described is applied in a like manner to the
other end of the body of the box and the lid h, of the box having been strengthened
in a similar manner as will be well understood by reference to figures 10 and 11,
(in which the metal strips of the lid are indicated by similar letters to those used
to describe the strips on the body of the box) the box will be complete and
by being thus bound with a metallic binding the strength of the box will be greatly
increased.

page_text: Figures 14, 15 and 10, are a plan, a side elevation and a transverse section
respectively showing a box bound in a similar manner to that hereinbefore described
and shewn in figures 10, to 13, and provided with an additional metallic strip i
of a shape similar to that shewn in figures 3; and 4, which is placed round the
middle of the lid h, for greater security; the ends g, g,, are turned under and
inwards as shewn in the dotted lines at figure 15.
The said metallic strips may if preferred be applied to the longer sides of the
box and lid.
Figures 17, 18, and 19 are views of an arrangement of short strips of metal
folded into a deep and narrow trough form and bent at right angles at or near
their middle as shewn, which arrangement I sometimes employ where the
strengthening only of the tops of the angles of the box or lid is required; these
pieces of metal are glued or otherwise fixed on the top angles of the box or lid by
passing the grooves, in the same over the said angles in the manner shewn in
figures 20 and 21 which are a side elevation and transverse section respectively
of a box provided with strengthening pieces of metal of this description; k, k, are
the strengthening pieces.
Or, instead of the trough shaped pieces of metal shewn in figures 17, 18 and 19,
I sometimes employ blanks of metal of the shape shewn in figure 22, and I bend
them up at right angles as shewn in figure 21, and then apply them to the tops
of the angles of the box or lid by bending the parts g, g inwards and upwards as
shewn in figure 24, and fix as hereinbefore described by glue or otherwise;
figures 25 and 26 shew a side elevation and transverse section of a box so
strengthened.
Instead of glue other adhesive matter may be employed.
After the application of the metallic strengthening pieces the ends and sides of
the box and lid may be covered with plain or ornamental paper.
Having thus described my invention and the best means I am acquainted with
for carrying the same into effect what I claim is :-
Firstly. Connecting the edges of cardboard and like boxes by means of strips
of metal cut and stamped to the required form substantially in the manner
herein before described and represented in figures 1 to 16 of the accompanying
drawing
Secondly. Strengthening the tops of the angles, of cardboard and like boxes by
means of metal corner pieces substantially in the manner heroinbefore described
and represented in figures 17 to 26 of the accompanying drawing
Thirdly. The improved boxes herein before described and represented in the
several figures of the accompanying drawing.
In Witness whereof I the said Thomas Bishop have hereto set my hand and
seal this twenty first day of February in the year of our Lord one thousand eight
hundred and eighty four.
TITORS DICTAD