A NEW METHOD OF MAKING AND CLOSING ENVELOPES
Year: 1884

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PROVISIONAL SPECIFICATION.
I, HERBERT PIPER of 62 St Mary's Terrace, Maida Vale in the County of
Middlesex, Stationer, do hereby declare the nature of my said invention for.
"A NEW METHOD OF MAKING AND CLOSING ENVELOPES" to be as follows:-
י.
The object of this Invention is to provide an Envelope which shall be thoroughly
secure and the contents of which cannot be tampered with.
Envelopes made according to this my Invention are especially suitable for
registered letters and may be of any size or shape, ("Commercial,” “Court,”
Foolscap," "Brief" &c).
$6
The novelty of this Envelope consists in cutting the fastening flap into &
particular shape and folding and securing same, as hereinafter described:
The Envelope, with the exception of the fastening flap may be made in the
ordinary manner, the said fastening flap I cut in the shape of a right angled
triangle having the folding side for its base. The perpendicular I make slightly
longer than the width of the Envelope so that when folded over, the apex of the
triangular flap forms a lappet which is brought to the front of the Envelope. This
lappet may be reduced in size so as to be covered and secured by the affixing of
the postage Stamp. The Edges of this fastening flap may be pasted or gummed
in the ordinary manner; the affixing of the postage stamp being an additional
security, as the Envelope cannot be opened surreptitiously by steam or moisture
without breaking or removing the Stamp, and the displacement of Stamp and
Postmark shews that the Envelope has been tampered with.
1
This fastening flap may fold over from either the left or right side or from top
or bottom of Envelope but I prefer to fold it over from the bottom or from the left
hand side so as to bring the securing lappet to the top right hand corner of
Envelope, the place where the postage stamp is ordinarily affixed.

page_text: COMPLETE SPECIFICATION.
I, HERBERT PIPER, of 62 St Mary's Terrace, Maida Vale, in the County of
Middlesex, Stationer, do hereby declare the nature of my said Invention for
"A NEW METHOD OF MAKING AND CLOSING ENVELOPES," and in what manner the
same is to be performed; to be particularly described and ascertained in and by
the following statement, reference being had to the accompanying drawings, and
to the letters of reference marked thereon, that is to say:
The object of this Invention is to provide an envelope which shall be thoroughly
secure, and the contents of which cannot be tampered with. Since the disuse of
letters sealed with sealing wax, there has been no security for gummed envelopes.
Envelopes made according to this Invention are especially suitable for registered
letters, and other letters containing documents, and valuable property of various
kinds.
1.
7.
J
These my envelopes may be of any size, or shape, "Commercial," "Court,"
"Foolscap," "Brief &c. The novelty of this envelope consists in cutting the
fastening flap into a particular shape, and folding and securing same, as hereinafter
described. :
And in order that this my invention may be fully understood reference is had to
the accompanying drawings;
>
Figure 1 being a view of envelope cut ready for folding; Figure 2 a view of back
of envelope with flap open; and Figure 3 shows the envelope closed.
The envelope, with the exception of the fastening flap A, may be made in the
ordinary manner. The said fastening flap 'A I cut in the shape of a right angled
triangle having the folding side a for its base. The perpendicular b I make slightly
longer than the width B C of the envelope so that, when folded over the apex e
of the triangular flap A forms a lappet which is brought to the front of the envelope
(as shown in Figure 3).
This lappet may be tapered or reduced so as to be covered and secured by the
affixing of the postage stamp as in figure 4.
The edges of this fastening flap A may be pasted or gummed in the ordinary
manner; the affixing of the postage stamp being an additional security, as the
envelope cannot be opened surreptitiously by moisture or steam, without breaking
or removing the stamp, which forms a safeguard, as the displacement of stamp and
postmark shews that the envelope has been tampered with.
The aforesaid, fastening flap A may fold over from either the left or the right
side, or from top or bottom of Envelope, but I prefer to fold it over from the
bottom, or from the left hand side so as to bring the securing lappet c to the top
right hand corner of envelope, the place where the postage stamp is ordinarily
affixed.
Envelopes constructed according to this my invention are especially suitable for
safely sending articles of value, important documents, deeds &c, as perfect security
from tampering with contents is obtained as aforesaid.

page_text: Having now particularly described and ascertained the nature of this my said
Invention, and in what manner the same is to be performed I declare that what
I claim is
The method of making and closing envelopes substantially as hereinbefore set
forth and described.