Year: 1887

page_text: от стегаташу, метепань.
I, WILLIAM PHILLIPS THOMPSON, F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6 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 most usual mode of manufacturing boxes, cigar boxes, for instance, is to nail
ogether the separate boards constituting the bottom and sides and to paste paper over
the corners to give the whole a more pleasing appearance. As a consequence of the
mode of manufacturing boxes by nailing the boards, the only mode known up to the
present for the production of cheap packing cases, the separate boards constituting
the cases must possess a certain thickness so that they may retain the nails and prevent
the latter from splitting or cracking them, whilst a lesser thickness would in reality
be sufficient to give the box the necessary strength.
The present invention relates to a new method of joining together the adjacent edges
of two box sides by means of metallic corner pieces, the application of which not
only permits thinner boards to be used in the manufacture of cigar boxes, but also
dispenses with the costly and time-wasting process of pasting paper over the adjacent
sides at the corners. Of course my new invention can with advantage be applied to
the manufacture of boxes made of paste board or other material.
On the annexed drawing
Figure 1. shows a finished cigar box.
Figure 2. shows a vertical section through the metallic corner as secured to a side
of the cigar box.
Figure 3. shows the corner connection on a larger scale whilst,
Figure 4. shows (also on a larger scale) a perspective view of the two metallic
corner pieces.

page_text: The connection of two boards forming the corner of a box is made, as mentioned
in the foregoing, by means of one or two metallic corner pieces A A' (Figures 3 and 4)
in which polygonal holes a are punched in such a manner that the parts b are pressed
outwards (Figures 2 and 4) and surround the hole a equidistantly. The metallic
corner piece A formed in this manner can as I have said, be used alone or, as shown
on the drawing in combination with another metallic corner piece. In the latter
piece A¹, however, the holes a must be so punched that they lie midway between or to
one side of the holes of the other corner piece A (Figures 2 and 4) whilst the pressed
out parts b must project from the sides of the corner piece A¹ in a direction opposite
to that in which they project from the sides of A.
If a cigar box is to be manufactured to which these metal corner pieces are to be
applied, a corner picce A¹ is laid on the inside corner formed by two adjacent sides,
which are to be joined together, whilst another corner piece A is applied on the
outside corner and pressed hard against the sides of the box by means of a suitable
contrivance. The parts raised from the metal during the punching process are now
embedded in the material of the box (Figure 2) thereby enclosing a peg c of the latter
material (Figures 1. 2. and 3). At the same time, the peg c made of the material of
the box is also pressed into the hole a of the metal corner piece and as it is entirely or
almost entirely separated at its outer surface from the wall of the box, it fills up the said
hole completely. Moreover, as the sides of the holes are not sharp edged but rounded off
in consequence of the drifting of the metal outwards, there is never any danger of the
box material being cut or split up. An overloading of the hox would cause it to be
destroyed at any other place sooner than at that point where the corners are joined.
In this mode of forming the corners of boxes, it is not so much the parts punched
outwards from the metal which impart solidity and strength to the box as the small
pegs connected to the sides of the box which are pressed into the holes made in the
metal corner piece. In fact the parts b punched outwards from the metal cannot be
considered as acting as small nails, since they are much too short to form a solid con-
nection. The parts punched outwards from the metal corner piece are only a means
to an end, namely to so cut out of the surface of the wood a small peg of box material
that it can penetrate through the metal of the corner piece. The surface of the metal
corner pieces ensures a solid connection between the sides at the corners of the box,
as owing to the penetration of the box material through the openings of the metal
corner pieces, the latter form so to speak an integral part of the box material.
After two sides of the box have thus been firmly connected, the other sides are
joined in the aforesaid manner to the sides already connected, and lastly the bottom
part is fixed to the sides likewise by means of metal corner pieces. All the edges of
the box are then sheathed with metal corner pieces and the covering of adjacent sides
at the corners is effected, so that it becomes unnecessary to paste paper over them,
more especially when ornamented sheet metal is employed.
Without further demonstration it is clear that in applying these particular sorts of
metal corner pieces, the thickness of the box, that is to say of the sides of the box, is
a matter of secondary importance, as it is simply a question of entering in the surface
of the box material a peg at such a depth that it will penetrate through the openings
of the metal sheet.
For this purpose the form of the holes a in the metal corner pieces matters little,
and these holes can be of elliptical, circular, or polygonal form. In the example
shown on the annexed drawings two corner pieces are used to form each corner of the
box, this however is not absolutely necessary. The application of only one corner
piece to the outside or inside surfaces of the box corners is sufficient, provided the
material has been properly pressed into the holes of the sheet forming the corner
pieces.
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 :-

page_text: cutting out of the material forming the said cases, boxes or other receptacles (by
means of pieces of metal 6 which project equidistantly round holes punched in the
metal corner pieces), small pegs (c) which remain partly connected to the said material,
and pressing these small pegs into the holes a of the corner pieces which are surrounded
by the said projecting pieces of metal b.
2nd. Metal corner pieces, for the purpose of making packing casos, boxes
or other receptacles in which holes a are punched or pressed out in such a manner
that they are surrounded equidistantly by the pieces of metal pressed out, and form
small pegs (c) in box material when forced therein, the holes a being adapted to receive
the said pegs.
Doted this 92nd day of Na
1007
WM. P. THOMPSON & Co.,
Agents for the Applicant.