Improvements in Boxes of Cardboard or other Material for Holding Pulverulent or other Substances.
Year: 1890

page_text: Date of Application, 28th Apr., 1890
Complete Specification Left, 5th Nov., 1890-Accepted, 6th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in Boxes of Cardboard or other Material for Holding
Pulverulent or other Substances.
I, SAMUEL CLELAND DAVIDSON of Sirocco Works, Belfast, Ireland, Merchant, do
hereby declare the nature of this invention to be as follows:-
'
My invention has reference to boxes of the kind in which the cardboard or other
material of which they are made is first formed (generally with the aid of crenses at
the parts where the angles are to come) into the shape of a rectangular box with
open ends, having projecting flaps which are subsequently turned or folded over so as
to close the ends. These flaps, generally to the number of two, are usually secured
in the closed position by causing a tongue on one flap to enter a corresponding slit
or cut in another flap. When, however, the boxes are intended to contain substances
of a more or less pulverulent nature such for example as fine tea, the boxes when
closed in the ordinary way are, so to speak, not particle-tight, and the contents are
liable to escape at the flaps.
.
Now the object of this invention is to make these boxes particle-tight. With this
object I form two of the sides of the box as has been usual with a flap at each end
of an area corresponding with the sectional area of the box, and a third side with a
flap which is elongated sufficiently to enable a portion of it to be turned down and
passed underneath the fourth side, while this fourth side has first a short extension
sufficient to form a turnover closure on the outer side over the elongated flap when
turned in and then beyond the said extension a tongue to enter a slit in the
elongated flap.
•
In closing the end of the box the two plain flaps are first turned over one upon
the other, then the elongated flap is turned over and its elongation turned down and
passed or tucked underneath the fourth side, but before this elongation is entirely
pushed into place the tongue on the extension of the fourth side is inserted into the
slit of the elongated flap; this flap is then pushed home and the slit comes close up
to the base of the tongue in the turn-over extension of the fourth side, this turn-
over coming outermost, a firm and particle-tight box is thus produced.
Dated this 50th day of Auxil 1800
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Boxes of Cardboard or other Material for Holding
Pulverulent or other Substances.
I, SAMUEL CLELAND DAVIDSON of Sirocco Works, Belfast,, Ireland, Merchant,
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 :-
My invention has reference to boxes of the kind in which the cardboard or other
material of which they are made is first formed (generally with the aid of creases at
the parts where the angles are to come) into the shape of a rectangular box with
open ends, having projecting flaps which are subsequently turned or folded over so
as to close the ends. These flaps generally to the number of two are usually secured
in the closed position by causing a tongue on one flap to enter a corresponding slit or
cut in another flap. When, however, the boxes are intended to contain substances of
a more or less pulverulent nature, such for example as fine tea, the boxes when closed

page_text: in the ordinary way are, so to speak, not particle-tight and the contents are liable to
escape at the flaps.
Now the object of this invention is to make these boxes particle-tight. With this
object I forin two of the sides of the box as has been usual with a flap at each end
of an area corresponding with the sectional area of the box, and a third side with a
flap which is elongated sufficiently to enable a portion of it to be turned down and
passed underneath the fourth side while this fourth side has first an, extension
sufficient to form a turn-over closure on the outer side over the elongated flap when
turned in, and then beyond the said extension a tongue to enter a slit or cut in the
elongated flap..
The accompanying drawings will enable my invention to be fully understood..
Figure 1 represents the piece or blank of cardboard or other material from which
the box is to be made.
•
Figure 2 is a perspective view of the box with one end closed and the other end
unclosed..
Figure 3 is a view of the closed end.
a, b, c, d in Figure 1 represent respectively the parts of the cardboard which form
the four sides of the finished box. ee and represent respectively the flaps which
are each of an area corresponding with the sectional area of the box, these flaps
being on the two sides a and c. gg are the flaps on the side b, these flaps having an
elongation at to enable this part to be passed in underneath the side d. i, i are the
flaps on the side d, these flaps each consisting of the part which forms a turn over
closure upon the flap g, and of a tongue to enter a slit or cut in the flap g.
m, Figure 1, is the usual additional piece which, when the blank is folded into the
rectangular form is gummed or cemented to the inside of the side a so as to keep the
sides in position. The dotted lines n in Figure 1 represent creases made in
the blank along the lines of fold, and the thick lines pp represent slits or cuts.
closing the end of the box (see Figure 2) the flaps e and fare first turned in against
the box one upon the other, then the flap g is turned in and its elongation inserted
or tucked under the side d, and finally the flap i is turned in and its tongue k is
inserted into the cut or slit in the flap g. A firm and particle-tight box is thus
produced.:
In
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
In boxes of the kind herein referred to, the combination with two end folding
flaps such as e- and with a third flap such as g having an elongation or turning in
part and a cut or slit l, of a fourth flap or turn over piece i having a tongue k to
enter the said cut or slit 1, whereby a particle-tight box is produced, substantially as
hereinbefore described.
Dated this 5th day of November 1890
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.