An Improved Safety Envelope.
Year: 1890

page_text: Date of Application, 22nd Nov., 1890-Accepted, 27th Dec., 1890
An Improved Safety Envelope.
I LOUIS DE WOJTKIEWICZ of 8 Wells Road, Regent's Park in the County of
Middlesex 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 :-
My invention relates to envelopes particularly to that class of envelopes used for
sending cheques, notes, documents and other papers of value and has for its object
to provide an absolutely safe envelope from which nothing can be abstracted without
visibly injuring or destroying the envelope.
In the accompanying drawings:
Fig. 1 shews the shape of the envelope before it is folded and gummed together.
Fig. 2 shews a modification of Fig. 1, and
Fig. 3 shews the envelope folded, gummed together and closed.
A, is the centre part of the envelope with flaps B, B', C and C¹ all made of one
piece.
In carrying out my invention I employ a piece of thick paper, either white or
colored, or linen paper, or any other suitable material from which envelopes are
now made, and cut it into the shape shewn in Figs. 1 & 2, of the accompanying
drawings. Instead of cutting the flaps C, C' as shewn in the drawings, I may cut
them semicircular, or in any other suitable shape, but I prefer the shape shewn in
the accompanying.drawings.
In the envelope shewn in Fig. 1, I cut the side flaps square and make them of
such a size that they overlap each other.
Flap B (or B) I provide with incisions so that in folding down and gumming
together flaps B & B₁-part will be underneath flap B (in the inside of the
envelope) and parts on top of flap B (ie., the inside of the envelope) and
parts on top of flap Bi.e. on the outside of the envelope) or vice-
versu. I then punch holes, E & E¹ in flaps C & C', these holes may be either
round, half round or square, or of any other convenient shape. I then fold and gum
part C-over the flaps B, B', in such a manner, that the lower parts 1, of the side
Haps are folded over, as shewn in Figures 1 & 2 at the dotted line "¹¹.
line the flap C is folded over and gummed securely onto the flaps; the top parts
of Haps B, B', are folded down at line, 1, (on the outside of the envelope) and
flap C is creased at A. The border of flap C¹is then gummed and left to dry, when
the envelope is ready for use.
At this
When the envelope is to be closed, the border of flap C' is moistened and the flap
is fastened down in the usual way.
The envelope is cut in such a manner that flap C¹ overlaps flap C—and the
holes E. will be just over the holes, E¹.
When the envelope is sealed, part of the sealing wax will settle on flaps B & B¹
and the other part of the sealing wax will settle round hole-E-on the flap C¹,
by this arrangement, it is impossible to remove the seal without injuring flaps B
or B¹ respectively. Where it is desired to employ only one seal, 1 give to flap C
& C', a semicircular shape, similar to that of the ordinary plain envelopes. I then
punch a hole into the flaps in such a manner, that the hole of the upper flap,
corresponds with the hole in the lower flap when the envelope is closed, I can then
seal the envelope placing the seal just over the holes, with the result above
described in reference to envelopes provided with two holes in each flap, which latter
shape I prefer for greater security.
Figure 2 merely shews modifications of Figure 1,-the principle is the same.
Instead of forming flap B' (or B respectively) with incisions d.—I either provide

page_text: both flaps with holes as shewn in Hap B, (Fig. 2)-(such holes not corresponding
when the flaps are gummed together) or 1 provide one flap only-B―with holes
and cut out the other in any kind of fancy border (as shewn in the accompanying
drawings Fig. 2-B) which when gummed down overlaps B. All other parts in
Figure 2 are the same as in Figure 1-(also the method of folding down and closing
the envelope) except the holes B, E, which are shewn in semicircular shape, these
holes E & E¹ form a circle, when the envelope is closed. The sealing is the same
as above described, only that in this case both flaps (C & C¹) receive part of the
seal and these two flaps are not overlapping.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
The construction of an envelope from which it is impossible to abstract something
without visible injury to said envelope, substantially as hereinbefore described with
reference to the annexed illustrative drawings.
Dated this 21st. day of November 189n
CHARLES W. J. NOLTE,
17, Coleman Street, E.C., Agent for the Applicant.