Improvements in Packing Cases for Holding "Tin Plates" and other like Plates.
Year: 1888

page_text: Date of Application, 11th Aug., 1888
Complete Specification Left, 11th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Packing Cases for Holding "Tin Plates" and
other like Plates.
I, WILLIAM EDGAR ROGERS, of 2 India Buildings, Water Street, Liverpool,
Merchant, do hereby declare the nature of my said invention to be as follows:-
This invention has special reference to cases used for packing "tin plates," but it is
also applicable for packing iron or other metal plates, especially those which are
readily oxidized by fresh or salt water, which require to be packed in the same or a
similar manner, or are of the same nature, or of about the same size as "tin
plates."
Amongst others, the chief object of my present invention is to provide packing
cases for "tin plates" (or plates of a like nature) which shall be water tight, cheaper
than the ordinary metallic lined wooden cases at present commonly employed, and
rendered capable of withstanding the usual severe." handling occurring during
transit from place to place and particularly to America and other foreign countries,
or colonies.
"
Packing cases according to my invention or with my improvements applied thereto,
are constructed as follows:-
I use sheet iron or steel of the kind usually employed in making sheet metal goods
such as pails and other like goods formed into the required size and shape and in two
or more parts-but preferably two, which when two parts only are used and the plates
to be packed are placed in position, are connected together by "seaming" the edges
together. When however a case is composed of say three parts one part only, say
the cover, remains unseamed prior to the stowing of the plates in the case.
What is meant by "seaming" is the turning in of the edges of the plates forming
the case at the points of connection as commonly practised in making cans or
packages for containing food stuffs, oils, paints and the like.
When the packing case is made of two pieces, it may either be so formed that the
joint is in the centre of the case, in the horizontal plane thereof, or at the top or
bottom; but when it is made in three pieces the body of the case is made of a sheet
and its edges seamed and the top and bottom are connected to it by seams and turned
against the metal of the case in any suitable way. In the former case the portions
forming both halves, or the bottom and body only, as the case may be, is stamped out
of a plate of sheet iron or steel into a dished form by suitable dies in any of the well
known ways and apparatus, the edges being flared out or flanged in such a manner
that one can be turned down over the other and both then turned or bent up or
down against the side of the case.
The dished portions may be slightly tapered, so that when empty and before using
them, one would fit inside the other and space and bulk would thereby be economized
for transit and storing.
In lieu of seaming the parts together as above specified, the flanges or edges may
be rivetted together; and when the cases are "stamped" the holes for rivets may be
stamped in simultaneously with the stamping of the case itself. Also the shell may
be corrugated at the bottom and top instead of plain if desired, the corrugations
being also impressed or formed simultaneously with the main stamping of the
case.
Dated this Oth do of Anost 1888
WILLIAM EDGAR ROGERS.
By Cheesbrough & Royston,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Packing Cases for Holding "Tin Plates" and
other like Plates.
I, WILLIAM EDGAR ROGERS, of 2 India Buildings, Water Street, Liverpool,
Merchant, do hereby declare the nature of my said 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 has special reference to cases used for packing "tin plates," but it
is also applicable for packing iron or other metal plates, especially those which are
readily oxidized by fresh or salt water, and which require to be packed in the same,
or a similar manner, or are of the same nature, or of about the same size as
plates."
"❝
tin
Amongst others, the chief object of my present invention is to provide packing
cases for "tin plates" (or plates of a like.nature), which shall be water tight, cheaper
than the ordinary metallic lined wooden cases at present commonly employed, and
rendered capable of withstanding the usual severe "handling," occurring during
transit from place to place, and particularly to America and other foreign countries
or colonies.
Packing cases according to my invention or with my improvements applied thereto,
are constructed as follows:-
I use sheet iron or steel of the kind usually employed in making sheet metal goods
such as pails and other like goods, formed into the required size and shape, and in
two or more parts-but preferably two,-which when two parts only are used, and the
plates to be packed are placed in position, are connected together by "seaming " the
edges together. When, however, a case is composed of say three parts, one part only,→
say the cover, remains unseamed prior to the stowing of the plates in the case.
What is meant by "seaming" is turning in the edges of the plates forming the case
at the points of connection, as commonly practised in making cans or packages for
containing food stuffs, oils, paints, and the like.
When the packing case is made of two picces, it may either be.so formed that the
joint is in the centre of case, in the horizontal plane thereof, or at the top or bottom,
but when it is made in three pieces the body of the case is made of a sheet, and its
edges seamed, and the top and bottom are connected to it by seams, and turned
against the metal of the case in any suitable way. In the former case the portions
forming both halves, or the bottom and body only, as the case may be, is stamped out
of a plate of sheet iron or steel, into a dished form, by suitable dies, in any of the well
known ways and apparatus, the edges being flared out or flanged, in such a manner,
that one can be turned down over the other and hoth then turned or bent up or down
against the side of the case.
The dished portions may be slightly tapered, so that when empty, and before using
them, one would fit inside the other, and space and bulk would thereby be economized
for transit and storing.
In lieu of seaming the parts together, as above specified, the flanges or edges may
be rivetted together; and when the cases are 68 stamped," the holes for rivets may be
stamped in simultaneously with the stamping of the case itself; but I prefer the
seaming." The shell may be corrugated at the bottom and top, instead of plain, if
desired; the corrugations being also impressed or formed simultaneously with the
main stamping of the case.
In the drawings which serve to illustrate my invention, Figure 1 is a sectional
perspective view showing a packing case according to my invention.
Figure 2 is a sectional view of one corner of a packing box, according to my
invention, prior to being seamed.
Figure 3 illustrates a seamt after the first stage of the seaming process, and Figure 4
illustrates the seam in its completed form.
Figure 5 shows a modified form of packing case.

page_text: Figure 6 shows a part of the top and bottom portion of another modified form of
case, with completed seam.
Figure 7 is a perspective elevation, illustrating another form of case composed of
three parts.
Figures 8 and 9 illustrate in cross sectional elevation and plan, respectively, a
punch and die, suitable for use in stamping the body of the box, illustrated in
Figure 1.
Figures 10 and 11 show in plan and cross section, respectively, the sheet of metal
for the body of the case; in.its form prior to being stamped by the apparatus illustrated
in Figures 8 and 9.
Figures 12 and 13 show in plan and end elevation, respectively, the body of the
case after being operated upon by the apparatus illustrated in Figures 8 and 9.
Figure 14 illustrates in plan, a corner of the body of the case. as it exists when
ready for seaming.
With reference in the first instance to Figure 1, a is the body of the case, and b the
lid. The body is stamped out of one piece of plate. This may be effected by and in
any of the well known stamping machines. If the material be of steel, or a steely
nature, the punch and die of the machine may be of the usual form, but if it be of the
medium or coarser quality of iron, a special die d illustrated in Figures 8 and 9, must
be used, and this form I will now describe.
In this die a slot g is provided at each corner, into which slot the metal will flow
when a plate is being pressed by the punch, e.
The form of the body plate before stamping in the punch and die is shown in
Figures 10 and 11, in plan and cross section, respectively. It consists of a plate,
having a turned down flange a', a portion of the corners of which are cut off as shown
in the plan in dotted lines, (also in Figure 12). The flange is also cut or snipped
at a², as shown in Figures 10, 12 and 14. These cut away portions of the flange, and
cut or snipped points, allow the ears K. (hereinafter described) to be manipulated and
seamed in the manner which will be presently specified. The turned down flange a¹
is stamped in any of the well known ways-as is also the flange bi, of the lid b.. In
stamping, the body plate is placed upon the die d, with the flange a¹ lying downwards,
(as shown in dotted lines in Figure 8), and when the plate is stamped the flange will
stand outwards, as in Figure 2. The surplus metal of the plate flows into the slots
of the die d, and, takes the form of cars, k, and the position shown in Figure 12. The
ears k are then knocked flat against the side of the case, (Figure 14), and the case is
ready for fitting and seaming. To seam it, the cover is laid on the case with its
flange b', lying downwards; this flange is then turned under the flange a', as shown
in Figure 3, and then the seam so made is turned down close to the side of the case,
as shown in Figure 4, thereby completing the case.
With reference to Figure 5, the cover b in this instance is formed to half the depth
of the case, the seam being the same as that just set forth with reference to
Figures 1, 2, 3 and 4.
The case shown in Figure 7 is formed of three parts, namely, the shell a,
bottom ¹, and cover b. The bottom is seamed to the shell first; then the case is
filled with plates, and then the cover is applied and seamed as previously set
forth.
The case is made slightly larger than the size of the plates, so that when they are
inserted and the case seamed as described, they substantially fill it.
A common size of plate is about 14 inches broad by 20 inches long, and I make the
case in length and breadth slightly larger than this size. The depth of the case is
made about 1 inches, this being the depth commonly employed for cases containing
"tin plates."
I
To increase the strength of the bottom of the case, and the cover of the case,
corrugate them, and I prefer to have the corrugations made when they are being
stamped, and by providing the bottom of the die and punch with corrugations; such
a case is shown in Figure 6.

page_text: A packing case constructed and seamed as described, is practically water tight, and
is rendered capable of withstanding the usual severe handling during transit.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what
I claim is :-
1. The improved package or packing case for holding "tin plates" and other
analogous sheet metal plates, herein described, consisting of a body, and a lid or cover,
of a sheet iron or steel, or other suitable sheet metal and having their edges connected
together, as, or substantially as set forth.
2. The improved package or packing case for holding "tin-plates " and other
analogous sheet metal plates, herein described, consisting of a body and lid or cover of
sheet iron or steel, or other suitable metal, and having their edges seamed together.
3. A sheet metal seamed "packing case'
for holding "tin plates" and other
analogous sheet metal plates; substantially as set forth.
"
4. The improved packing case herein described, for holding "tin plates" and other
analogous sheet metal plates, consisting of a rectangular shaped body, and a cover,
said body and cover being of sheet iron, steel, or other metal, and having their edges
" seamed" together, the seam of the cover being formed along the sides and ends of
the case, the whole case being made of small depth, as described, and of just
sufficient size in breadth and length to receive the plates.
.5. The packing case for holding "tin plates" and other analogous sheet metal
plates, constructed, and the parts thereof connected together, substantially as set
forth with reference to Figures 1, 5, and 7, respectively.
6. A sheet metal packing case for holding "tin plates" and other analogous sheet
metal plates, the metal of said case being corrugated for the purposes set forth.
7. A sheet metal packing case for holding "tin plates" and other analogous sheet
metal plates, the parts of said case being corrugated as set forth with reference to
Figure 6.
8. A sheet metal packing case for holding "tin plates" and other analogous sheet
metal plates, the body or body and cover of which are constructed substantially as
set forth with reference to Figures 12, 13, and 14.
Dated this 8th day of June 1889
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Applicant's Agents.